Provided are a screw shaft for a ball screw device, the screw shaft comprising a hardened layer and enabling suppression of manufacturing cost, and a method for manufacturing the same. A screw shaft (1) includes: a screw shaft part (2) having a spiral groove (4) on the outer peripheral surface thereof; an induction hardened layer (5) formed on the outer peripheral surface of the screw shaft part (2); and a laser hardened layer formed on at least a part of a portion of the surface outside the outer peripheral surface of the screw shaft part (2), the portion being in contact with another member during use.
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C21D 1/09 - Durcissement de surface par application directe d'énergie électrique ou ondulatoireDurcissement de surface par radiation particulaire
C21D 1/10 - Durcissement de surface par application directe d'énergie électrique ou ondulatoireDurcissement de surface par radiation particulaire par induction électrique
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
A method for evaluating a filtration filter used for recycling used fats and oils includes: an imaging step of capturing an image of fats and oils filtered by the filtration filter or an image of the fats and oils diluted with a solvent together with a color chart by an imaging device; an image information acquisition step of acquiring image information of the imaged fats and oils or image information of the fats and oils diluted with the solvent based on image information of the imaged color chart; a fats and oils deterioration determination step of determining a deterioration state of the fats and oils based on the image information; and a filtration filter evaluation step of evaluating filtration performance and deterioration inhibiting performance of the filtration filter based on a determination result of the fats and oils deterioration determination step.
F16N 39/06 - Dispositions pour conditionner des lubrifiants dans les circuits de lubrification par filtrage
G01N 21/25 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes
G06T 7/90 - Détermination de caractéristiques de couleur
H04N 23/88 - Chaînes de traitement de la caméraLeurs composants pour le traitement de signaux de couleur pour l'équilibrage des couleurs, p. ex. circuits pour équilibrer le blanc ou commande de la température de couleur
3.
MOTOR WITH REVERSE-INPUT CUTOFF CLUTCH, STEERING DEVICE, AND METHOD FOR CONTROLLING REVERSE-INPUT CUTOFF CLUTCH
LLLL or less, the limiting angle being the angle at which the generation of collision noise resulting from the collision of an input-side engaging part 18 with an input-side engaged part 37 and/or the generation of collision noise resulting from the collision of an output-side engaged part 38 with an output-side engaging part 24 can be prevented or suppressed.
F16D 41/10 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre à inversion automatique
B62D 5/04 - Direction assistée ou à relais de puissance électrique, p. ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
B62D 7/22 - Dispositions pour réduire ou éliminer les réactions, p. ex. les vibrations, dans les parties constitutives du système de direction, p. ex. dans les roues
H02K 7/10 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques
4.
GREASE COMPOSITION, AND BEARING AND ROLLING DEVICE IN EACH OF WHICH SAID GREASE COMPOSITION IS SEALED
A grease composition which contains a base oil (A), a urea-based thickening agent (B), a fatty acid copper salt (C), and one or more ester compounds (D) that are selected from among a succinate ester and a sorbitan ester, wherein the base oil (A) contains a trimellitic acid ester or an alkyl diphenyl ether.
C10M 169/00 - Compositions lubrifiantes caractérisées en ce qu'elles contiennent comme constituants un mélange d'au moins deux types d'ingrédients, couverts par les groupes précédents, choisis parmi les matériaux de base, les épaississants ou les additifs, chacun de ces composés étant un composé essentiel
C10M 115/08 - Compositions lubrifiantes caractérisées en ce que l'épaississant est un composé organique non macromoléculaire, autre qu'un acide carboxylique ou ses sels contenant de l'azote
C10N 50/10 - Forme sous laquelle est appliqué le lubrifiant au matériau à lubrifier semi-solideForme sous laquelle est appliqué le lubrifiant au matériau à lubrifier huileuse
Provided is a ball screw device capable of improving processing efficiency. A nut of a ball screw device according to the present disclosure has a through hole formed therein which penetrates in the radial direction and through which a piece is inserted. A circulation path is formed inside the piece in the radial direction. The circulation path has: a first circulation path that extends from a central part in the length direction of the circulation path to one side in the circumferential direction and is connected to one end of a track; and a second circulation path that extends from the central part in the length direction of the circulation path to the other side in the circumferential direction and is connected to the other end of the track. A direction parallel to a central axis of the screw shaft is defined as an axial direction. The first circulation path is disposed further to one side in the axial direction toward the one end of the track. The second circulation path is disposed further to the other side in the axial direction toward the other end of the track. In the first circulation path, the piece is disposed on the outer side in the radial direction and the other side in the axial direction, and the inner peripheral surface of the through hole is disposed on the one side in the axial direction. In the second circulation path, the piece is disposed on the outer side in the radial direction and the one side in the axial direction, and the inner peripheral surface of the through hole is disposed on the other side in the axial direction.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
The present invention pertains to a magnetostrictive torque sensor which excels in mountability and which suppresses an increase in installation space while enhancing reliability. A magnetostrictive torque sensor 1 is attached to the periphery of a rotary shaft 5 having a magnetostrictive effect, and detects torque transmitted by the rotary shaft 5. The magnetostrictive torque sensor 1 comprises: a resin holder 31 having a cylindrical part 311 at a center part of which is formed a cavity 310 through which the rotary shaft 5 passes; a flexible substrate 2 disposed in a curving manner around the outer periphery of the cylindrical part 311 so as to surround the cylindrical part 311; and a cylindrical magnetic ring 32 composed of a soft magnetic body and disposed on the outer periphery of the flexible substrate 2. A first detection coil 201 and a second detection coil 202 provide redundancy and are formed by the flexible substrate 2. Each of the first detection coil 201 and the second detection coil 202 is composed of a plurality of coil elements formed by a wiring pattern of the flexible substrate 2.
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
A rotation support device includes a rotation shaft; and a pair of support mechanisms that rotatably support the rotation shaft, respectively. One of the pair of support mechanisms includes a bearing unit including a bearing housing and a bearing that rotatably supports the rotation shaft with respect to the bearing housing, a support base through which the rotation shaft passes or disposed around the rotation shaft, and a housing position adjustment mechanism disposed between the bearing unit and the support base. The housing position adjustment mechanism includes a support base side member provided on a support base side, a bearing housing side member provided on a bearing housing side and movable in the axial direction relative to the support base side member, and a working fluid in a compressed state filling a pressure chamber formed between the support base side member and the bearing housing side member.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16C 19/54 - Systèmes formés d'une pluralité de paliers à frottement de roulement
F16C 33/10 - Structures relatives à la lubrification
10.
ROTATION SUPPORT DEVICE, AND SUPPORT MECHANISM POSITION ADJUSTMENT MECHANISM FOR SHAFT SUPPORT DEVICE
A support mechanism which supports both ends in an axial direction of a screw shaft in a rotatable manner includes a bearing unit including a movable side bearing housing and a pair of angular ball bearings, a support base, and a housing position adjustment mechanism disposed between the bearing unit and the support base. The housing position adjustment mechanism includes a support base side member, a bearing housing side member, a partition member disposed in a space formed between the support base side member and the bearing housing side member and dividing the space in the axial direction into a first space and a second space, a plurality of disc spring and a first working fluid accommodated in a compressed state in the first space, and a hollow member and a second working fluid accommodated in a compressed state in the second space.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16C 33/10 - Structures relatives à la lubrification
11.
GREASE COMPOSITION FOR ROLLING BEARINGS, AND ROLLING BEARING
The present invention provides a grease composition for rolling bearings, comprising a base oil; as a thickener, a complex amido-lithium soap; as antioxidants, 0.5 to 5% by mass of an amine-based antioxidant and 0.5 to 5% by mass of a phenol-based antioxidant, based on the total mass of the composition; and as rust inhibitors, 0.1 to 5% by mass of a carboxylic acid-based rust inhibitor, 0.1 to 5% by mass of a carboxylate-based rust inhibitor, and 0.1 to 3% by mass of an amine salt of a fatty acid, based on the total mass of the composition, wherein a 60-stroke worked penetration is 260 to 320 as measured according to JIS K 2220 7.
A cover for a worm wheel gear box for a steering system and an electric power steering system for a vehicle. The cover comprises a substantially disc or dome shaped cover body configured to cover an opening of the worm wheel gear box. The cover body includes an inner surface configured to face the worm wheel gear box and an opposite outer surface. The cover body includes a sealing portion formed on the inner surface and configured to sealingly engage an outer circumference of the opening of the worm wheel gear box. The cover body includes a first attachment means and a second attachment means for mounting the cover body to the worm wheel gear box. The first attachment means and the second attachment means are provided at substantially diametrically opposed positions of the cover body. The cover body includes a reinforcement structure reinforcing the cover body.
B62D 5/04 - Direction assistée ou à relais de puissance électrique, p. ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
B62D 3/12 - Boîtiers de direction mécaniques du type à crémaillère
B62D 5/00 - Direction assistée ou à relais de puissance
F16H 1/16 - Transmissions à engrenages pour transmettre un mouvement rotatif sans engrenages à mouvement orbital comportant uniquement deux organes engrenés dont les axes ne sont pas parallèles comportant une vis sans fin et une roue à vis sans fin
F16H 55/24 - Dispositifs particuliers de rattrapage de jeu entre les dentures
F16H 57/021 - Structures de support d'arbres, p. ex. parois de séparation, orifices de logement de paliers, parois de carter ou couvercles avec paliers
13.
ROTATION ASSISTANCE DEVICE, AND ASSISTANCE MECHANISM POSITION ADJUSTMENT MECHANISM FOR SHAFT SUPPORT DEVICE
A rotation support device includes a rotation shaft, and a pair of support mechanisms that rotatably support both end portions in an axial direction of the rotation shaft, respectively. One of the pair of support mechanisms includes a bearing unit including a bearing housing and a bearing, a support base, and a housing position adjustment mechanism. The housing position adjustment mechanism includes a support base side member through which the rotation shaft passes or disposed around the rotation shaft, a bearing housing side member through which the rotation shaft passes or disposed around the rotation shaft, and movable in the axial direction relative to the support base side member, an elastic member disposed between the support base side member and the bearing housing side member, and a damping member disposed between opposing surfaces of the support base side member and the bearing housing side member.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
This ball screw device testing device comprises: a support part that rotatably supports a first rotary component of a ball screw device to be tested, and linearly supports a first linear motion component; a first motor that is disposed in a first direction when viewed from the support part, and generates torque for rotating the first rotary component; and a load device that is disposed in a second direction when viewed from the support part, abuts on the first linear motion component, and applies an axial load to the first linear motion component. The load device comprises: a second motor; a load-side ball screw device having a second rotary component that rotates by means of torque generated by the second motor, and a second linear motion component that linearly moves; and an elastic body interposed between the first linear motion component and the second linear motion component. Positions of the output shafts of the first motor and the second motor are controllable.
G01M 13/027 - Bancs d’essai avec des moyens d’application de forces, p. ex. charge des arbres d’entraînement selon plusieurs directions
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
A testing device for a ball screw device comprises: a support part which supports a rotation component of a ball screw device such that the rotation component can be rotated and which supports a linear-motion component such that the linear-motion component can be linearly moved; a first motor which generates torque; and a load device which applies a load to the linear-motion component, wherein the load device includes a movement component which is disposed in a first direction with respect to the linear-motion component and which can be moved in the axial direction and the orthogonal direction, a reaction force generation mechanism which is disposed in the first direction with respect to the movement component and which presses the movement component from the first direction, and a radial load mechanism which moves the movement component in the orthogonal direction. The movement component can be moved in the orthogonal direction relatively to the reaction force generation mechanism. The movement component has a coupling part which can transmit a load to the linear-motion component in a second direction and the orthogonal direction.
G01M 13/027 - Bancs d’essai avec des moyens d’application de forces, p. ex. charge des arbres d’entraînement selon plusieurs directions
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
This actuator comprises: a screw shaft that has one end pointing in a first direction and the other end pointing in a second direction; a nut that penetrates the screw shaft; a plurality of balls that are disposed between the screw shaft and the nut; and a rotary component that is connected to an end portion of the screw shaft in the second direction and transmits torque to the screw shaft. The rotary component has: a first end surface facing in the first direction; a first protrusion that protrudes in the first direction from the first end surface and co-rotates with the rotary component; a second end surface facing in the second direction; and a recessed part recessed in the first direction from the second end surface. The nut has a second protrusion that protrudes into the trajectory of the rotating first protrusion and contacts the first protrusion. The first protrusion has a contact surface that faces in the circumferential direction and contacts the second protrusion.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
A mechanical equipment monitoring system includes a sensor, an actuator, a communication unit that transmits a trigger signal when the actuator is in a suitable state for the sensor to detect an operational state of the actuator, an information collection unit that collects, from the sensor, operational state data which indicates the operational state detected by the sensor upon receiving the trigger signal from the communication unit, and an information processing device that monitors the actuator based on the operational state data collected by the information collection unit.
This brush unit contacts a shaft conductive part provided to a rotating shaft, and thereby electrically connects a housing and the shaft conductive part. The brush unit comprises: a holder attached to the housing; a brush that contacts the shaft conductive part; and a sleeve that holds the brush so that the same is slidable. The sleeve is attached to the holder as a result of the radially-outer surface of the sleeve being sandwiched by the radially-inner surface of the holder.
The present invention achieves a reverse input cutoff clutch structure that makes it possible to temporarily disable a reverse input cutoff function. A pressed member 2 comprises: a main body section 7 having a pressed surface 6 on an inner peripheral surface thereof; and a side plate section 8 extending radially inward from an axial end section of the main body section 7. The side plate section 8 has an observation hole 10 axially penetrating a part including a part of which the radial position coincides with a part deviating from a pressing surface 31 in the circumferential direction in a radially outward surface of an engagement element 5.
F16D 41/10 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre à inversion automatique
F16D 51/12 - Freins avec organes de freinage se déplaçant vers l'extérieur coopérant avec la surface intérieure d'un tambour ou d'une pièce analogue ayant la forme de sabots de freins exclusivement mobiles radialement actionnés mécaniquement
F16D 63/00 - Freins non prévus ailleursFreins combinant plusieurs des types mentionnés dans les groupes
The present invention provides: a rolling bearing with excellent productivity due to the use of a material with a reduced amount of additive element as a material with excellent resistance to white structure flaking; and a method for manufacturing the same. A rolling bearing (1) comprises: a pair of steel bearing rings; and a plurality of rolling elements (6) that are rollably held between the pair of bearing rings (outer ring (3) and inner ring (5)). The bearing rings have rolling surfaces (outer ring–side rolling surface (2), inner ring–side rolling surface (4)) on which the rolling elements (6) roll. At the rolling surfaces, the amount of carbon in the steel is between 0.40 mass% and 0.75 mass%, inclusive, and the amount of chromium in the steel is less than 2.10 mass%.
C21D 9/40 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour anneauxTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour roulements de paliers
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/18 - Alliages ferreux, p. ex. aciers alliés contenant du chrome
C22C 38/60 - Alliages ferreux, p. ex. aciers alliés contenant du plomb, du sélénium, du tellure, de l'antimoine, ou plus de 0,04% en poids de soufre
F16C 19/06 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec une seule rangée de billes
21.
CAGE FOR DEEP GROOVE BALL BEARING AND METHOD FOR MANUFACTURING SAME
The present invention provides a cage for a deep groove ball bearing capable of enhancing performance for preventing a crown-type cage from falling off from a bearing in an axial direction even when there are many balls, excellent in moldability with easy demolding, and low in cost. A plurality of pockets include a plurality of first pockets for preventing a cage for a deep groove ball bearing from falling off from a bearing in the axial direction. Each of the first pockets comprises a cylindrical surface-like inner surface and a claw part for narrowing an interval between a pair of column parts adjacent to each other at an end part opposite to an annular part. At least two of the first pockets arranged so as to be adjacent to each other in the circumferential direction constitute a first pocket group. The central axes of the inner surfaces of the first pockets constituting one first pocket group are parallel to each other.
F16C 33/41 - Cages à billes comportant une bague portant des doigts de séparation des éléments de roulement
B29C 33/44 - Moules ou noyauxLeurs détails ou accessoires comportant des moyens ou conçus spécialement pour faciliter le démoulage d'objets, p. ex. des objets à contre-dépouille
F16C 19/06 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec une seule rangée de billes
A linear motion guide device according to the present invention comprises a case that is attached to an axial end of a slider, accommodates a U-shaped lubricant supply member that is impregnated with a lubricant, and presses the lubricant supply member such that the lubricant supply member contacts a pair of rail-side track surfaces. A wing part of the lubricant supply member has a notch that extends in the direction away from a guide rail from a side surface that is near a side surface of the guide rail, and the case has an upper contact part and a lower contact part that are inside the notch and contact an upper end inside surface of the notch and a lower end inside surface of the notch, respectively. As a result, contact between the lubricant supply member and the rail-side track surfaces is maintained such that lubricant can be stably supplied to the rail-side track surfaces, even when the lubricant supply member has discharged oil and contracted.
[Problem] To achieve a structure that can prevent damage to a reverse-input blocking clutch and/or to a member constituting a mechanical device in which the reverse-input blocking clutch is incorporated, even when an excessively large torque is reversely inputted into an output member. [Solution] A pressed member 2 has: a fixed element 7 that does not rotate even during use; a movable element 8 that is supported radially inward of the fixed element 7 so as to be capable of rotating relative to the fixed element 7, and that has a pressed surface 6; and a limiting member 9 that is disposed between the fixed element 7 and the movable element 8. When a rotational torque reversely input into the output member 4 is less than or equal to a prescribed value, the limiting member 9 prevents rotation of the movable element 8 relative to the fixed element 7, whereas when the rotational torque reversely input into the output member 4 is greater than the prescribed value, the limiting member 9 allows the rotation of the movable element 8 relative to the fixed element 7.
F16D 41/10 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre à inversion automatique
F16D 7/02 - Accouplements à glissement, p. ex. glissant en cas de surcharge, pour absorber les chocs du type à friction
[Problem] To realize a reverse input blocking clutch structure with which it is possible to prevent a stopper member from falling off an output member and to reduce the number of components. [Solution] An output member 4 has an attachment shaft portion 20 that is disposed coaxially with an output-side engaging portion 19 and that protrudes toward one side in the axial direction from the end surface of the output-side engaging portion 19 on said one side in the axial direction. A stopper member 6 has a cylindrical portion 52 that is fitted externally onto the attachment shaft portion 20 of the output member 4, a flange portion 53 that is axially opposed to an end surface 49 of an engaging element 5 on said one side in the axial direction, and a crimped portion 51 that is formed in at least a portion of the cylindrical portion 52 or is connected to at least a portion in the circumferential direction of an end portion of the cylindrical part 52 on said one side in the axial direction, and the stopper member 6 is crimped and fixed to the attachment shaft portion 20 by the crimped portion 51.
F16D 41/10 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre à inversion automatique
F16D 1/072 - Accouplements pour établir une liaison rigide entre deux arbres coaxiaux ou d'autres éléments mobiles d'une machine pour montage d'un organe sur un arbre ou à l'extrémité d'un arbre non démontables faisant intervenir une déformation plastique
The present invention can prevent leakage of a lubricant during normal use, can easily discharge old lubricant when lubricant is supplied, prevents damage to a seal, and can maintain a good lubrication state. A ball screw (10) comprises: a screw shaft (20), in the outer peripheral surface of which is formed a screw groove (21); a nut (30), in the inner peripheral surface of which is formed a screw groove (31); a plurality of balls (22) which roll in a load track that is constituted by the screw groove (21) of the screw shaft (20) and the screw groove (31) of the nut (30); and a seal member (50) which is attached to an axial end part of the nut (30) and which seals a gap (12) between the screw shaft (20) and the nut (30). The seal member (50) has a lubricant discharge part (13). The lubricant discharge part (13) is closed in a state where the pressure inside the nut (30) and the pressure outside the ball screw (10) are the same, and opens to allow passage therethrough the axial direction of the screw shaft (20) when the pressure inside the nut (30) increases.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16J 15/3204 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques avec au moins une lèvre
A circulation component of this ball screw device has a pair of tip parts disposed at both length-direction-end parts of the circulation component, and a body that connects the pair of tip parts to each other. An opening that connects a track and a circulation path, and a tongue that scoops up balls rolling on the track are formed in the tip part. A dividing surface that divides a part of the tip part is formed in the circulation component. The dividing surface has a pair of first dividing surfaces that extend from the edge of the opening toward the body and performs division into a recessed first wall part and a recessed second wall part, and a second dividing surface that separates the first wall part from a portion of the first wall part located nearer to the length-direction center. The circulation component is divided by the dividing surface into a first component in which the body and the pair of second wall parts are integrally formed, and a pair of second components which are the first wall part and in which the tongue is formed.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
The present invention provides a radial roller bearing that can prevent rollers from falling out and allow for improvements in handleability, load bearing, and lubricity. This radial roller bearing is characterized by comprising: a plurality of rollers that roll on an inner circumferential surface of a housing and/or an outer circumferential surface of a shaft; and a meltable retainer that holds the plurality of rollers in a pre-use state and is melted in an in-use state to allow the plurality of rollers to roll.
F16C 19/26 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p. ex. roulements à aiguilles pour charges radiales principalement avec une seule rangée de rouleaux
F16C 33/58 - Chemins de roulementBagues de roulement
F16C 33/66 - Pièces ou détails particuliers pour la lubrification
Provided is a ball screw in which the occurrence of adhesive wear can be reduced and stable driving can be maintained even in severe environments for lubricating, such as an underwater environment or an environment constantly exposed to water. The ball screw includes: a stainless steel screw shaft (21) having an outer circumferential screw groove (21a) formed in the outer circumferential surface; a stainless steel nut (22) having an inner circumferential screw groove (22a) formed in the inner circumferential surface; a plurality of balls (23) accommodated in a rolling path formed with the outer circumferential screw groove (21a) and the inner circumferential screw groove (22a); and a circulation part for circulating the plurality of balls (23) in the rolling path. The plurality of balls (23) includes a plurality of load balls (23a) and spacer balls (23b) disposed between adjacent load balls (23a). The load balls (23a) are made of ceramic. The spacer balls (23b) are made of stainless steel having a hardness lower than the material constituting the load balls. The diameter of the spacer balls (23b) is smaller than the diameter of the load balls (23a).
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
Provided is a sliding member in which a first member having a low hardness and a second member having a high hardness slide against each other via a lubricant. The sliding member has an optimized profile relationship between large waviness and fine roughness applied to the first member, improved retention and wettability of the lubricant, and increased seizure resistance. In the sliding member in which the first member and the second member having a higher hardness than the first member slide against each other via a lubricant, an isotropic texture in which a valley area is 1000 μm2/mm or more and 20000 μm2/mm or less and RLo (λc: 0.08 mm) is 1% or more and 12% or less is applied to a part of the first member which is in contact with the second member.
This method for manufacturing a screw shaft for a ball screw having a spiral groove in which a plurality of rolling elements roll and a circulation groove for returning the rolling elements from one end to the other end of the spiral groove includes a circulation groove formation step and a spiral groove formation step. In the circulation groove formation step, a punch (31) in which a protrusion (32) corresponding to the recess of the circulation groove is formed is moved radially inward with respect to a blank (8) without being moved in the axial direction, thereby pressing the protrusion (32) against the outer peripheral surface of the blank (8) and forming the circulation groove on the outer peripheral surface of the blank (8).
B21K 1/54 - Fabrication d'éléments de machines de boulons, goujons ou éléments similaires à rainures ou entailles
B23P 23/04 - Machines ou agencements de machines réalisant des combinaisons déterminées de différentes opérations d'usinage, non couverts par une seule autre sous-classe pour effectuer l'usinage ainsi que les autres opérations de travail du métal
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
A linear guide device (10) has: a guide rail (1); a slider (2) assembled to the guide rail (1); and a plurality of roll elements which are filled into a roll element rolling passage (23a, 23b) comprising a loaded rolling passage (22a, 22b) and an unloaded rolling passage (21a, 21b) in a freely rollable manner. The plurality of roll elements comprise a plurality of steel balls (6) and a plurality of spacer balls (16) smaller than the loaded balls and having elasticity. At least one spacer ball is always present in each unloaded rolling passage. The total spring constant of all the spacer balls present in each unloaded rolling passage is 3.4 (N/mm) or less. This allows appropriate setting of the number and material of the spacer balls to be inserted, and suppresses jostling of the roll elements in the unloaded rolling passage, to achieve excellent operability.
F16C 29/06 - Roulements à billes ou à rouleaux dans lesquels les billes ou rouleaux ne supportent la charge que sur une partie du chemin de roulement
F16C 19/08 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec plusieurs rangées de billes
32.
NUT FOR BALL SCREW DEVICE AND METHOD FOR MANUFACTURING SAME
Provided is a method for manufacturing a nut for a ball screw device, the method making it possible to suppress the incidence of failure of balls to circulate. The present invention comprises, in regard to a manufacturing object that is a nut 1 having, on the inner-peripheral surface 2 thereof, a nut-side spiral groove 4, a substantially S-shaped circulation groove 5, and an inner-peripheral cylindrical surface 6 provided within a range including the circulation groove 5 in at least the axial direction among portions that have deviated from the nut-side spiral groove 4 and the circulation groove 5: a step for setting, on the outer-peripheral surface 3 of the nut 1, a grinding reference surface 7 that serves as a reference when grinding is implemented on the nut-side spiral groove 4 and the inner-peripheral cylindrical surface 6; a step for implementing the grinding on the nut-side spiral groove 4 with reference to the grinding reference surface 7; and a step for implementing the grinding on the inner-peripheral cylindrical surface 6 with reference to the grinding reference surface 7.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
A reverse-input blocking clutch includes a leaf spring having: two held portions that is arranged on both sides of an input-side engaging portion of an input member with respect to a second direction perpendicular to a first direction which is a direction of movement of a pressing surface of an engaging element moving away from or toward a pressed surface of a pressed member and a center axis of the input member, and elastically held between the input-side engaging portion and an input-side engaged portion of the engaging member; and a base portion that connects the two held portions.
F16D 41/10 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre à inversion automatique
34.
ROLLING DEVICE DIAGNOSING METHOD, DIAGNOSING DEVICE, AND PROGRAM
A method for diagnosing a rolling device including a rolling element and a peripheral member of the rolling element, the method including: applying an AC voltage to an electric circuit including the rolling element and the peripheral member; measuring an impedance and a phase angle when the AC voltage is applied; correcting the measured impedance and the measured phase angle using a correction formula based on a solution of Kirchhoff's law defined corresponding to a resistance and a reactance by a wiring component in the electric circuit; and calculating a lubricating film thickness and a metal contact ratio based on the corrected impedance and the corrected phase angle.
This state change detection system comprises: a rotation detection unit that outputs a pulse signal; a pulse calculation unit that obtains a pulse calculation waveform representing a pulse period for each rotation angle of a rotating body; a reference generation unit that generates a reference waveform in which an average pulse calculation waveform, which is obtained by averaging values of the pulse calculation waveform with an accumulated value for each rotation angle, is represented by the distribution for one rotation of the rotating body; a rotational fluctuation waveform generation unit that uses the reference waveform to generate a rotational fluctuation waveform obtained by extracting, from the pulse calculation waveform used to generate the reference waveform or a pulse calculation waveform succeeding the pulse calculation waveform, a fluctuation component other than a steady component that steadily occurs with the rotation of the rotating body; and a state change detection unit that detects a change in rotation state on the basis of the rotational fluctuation waveform.
F16C 19/52 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec dispositifs affectés par des conditions anormales ou indésirables
Provided is a rolling bearing that can be used in a low-temperature, lean-lubrication environment and can achieve exceptional durability by further improving wear resistance. A rolling bearing (1) comprises a bearing ring composed of an outer ring (10) and an inner ring (20), and a plurality of rolling elements (30) rollably held between the outer ring (10) and the inner ring (20), the rolling bearing (1) being used in a low-temperature, lean-lubrication environment. At least one of the outer ring (10), the inner ring (20), and the rolling elements (30) is formed using a steel material containing 0.1-0.7 mass% of C, 1.1-1.8 mass% of Cr, 0.7-1.3 mass% of Si, 0.3-1.1 mass% of Mn, and 0.6-1.3 mass% of Mo, and is subjected to a carbonitriding process and a quenching/tempering process in the stated order. The surface carbon concentration is 0.6-1.5 mass%, and the surface nitrogen concentration is 0.05-0.8 mass%.
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C21D 9/40 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour anneauxTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour roulements de paliers
C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
C23C 8/26 - Nitruration de la couche superficielle de matériaux ferreux
F04D 7/02 - Pompes adaptées à la manipulation de liquides particuliers, p. ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge
According to the present invention, differential omnidirectional movement is enabled, a detection mechanism for a turning angle is disposed while reducing an occupied area in an overall configuration, and transmission loss of the turning angle is reduced. The present invention comprises: a first input shaft 25A and a second input shaft 25B; a rotatable axle 37 to which a wheel 15 is connected; a differential transmission mechanism 13 that transmits the rotational force of the first input shaft 25A to the axle 37 and transmits the rotational force of the second input shaft 25B to the axle 37; a turning shaft 35 that supports the wheel 15 via the axle 37 in an endlessly turnable manner; and an angle detection shaft 16a that is fixed coaxially with the turning shaft 35 and to which an angle detector 16 is connected.
F16H 48/08 - Transmissions différentielles avec des engrenages à mouvement orbital avec des engrenages orbitaux coniques
B62B 3/00 - Voitures à bras ayant plus d'un essieu portant les roues servant au déplacementDispositifs de direction à cet effetAppareillage à cet effet
F16H 48/42 - Détails de structure caractérisés par des particularités des arbres d'entrée, p. ex. montage des roues dentées d'entraînement sur ceux-ci
Provided is a rolling bearing that can be used in a low-temperature and lean-lubrication environment and can further improve wear resistance to achieve excellent durability. A rolling bearing (1): includes a race that comprises an outer ring (10) and an inner ring (20) and a plurality of rolling bodies (30) that are rollingly held between the outer ring (10) and the inner ring (20); and is to be used in a lean-lubrication environment in which a liquid that has a viscosity of VG2 or below at 40°C is circulated between the outer ring (10), the inner ring (20), and the rolling bodies (30) at a low temperature of -30°C or below. At least one of the outer ring (10), the inner ring (20), and the rolling bodies (30) is formed from a steel material that is 0.5–1.1 mass% C, 3.5–4.5 mass% Cr, 3.7–4.8 mass% Mo, no more than 0.5 mass% Si, and no more than 0.6 mass% Mn and has undergone a quenching and tempering treatment.
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C21D 9/40 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour anneauxTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour roulements de paliers
C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
F04D 7/02 - Pompes adaptées à la manipulation de liquides particuliers, p. ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge
In the present invention, a plurality of column portions on one side of an annular body in the axial direction and a plurality of column portions on the other side of the annular body in the axial direction are arranged such that the phases thereof in the circumferential direction are shifted from each other by a half pitch. The annular body has: an outer protruding section that protrudes further outward than the column portions in the radial direction and is guided into the inner circumferential surface of the outer ring; and a small distance portion that has a radial-direction distance that is smaller than the outer diameter of the outer protruding section in order to enable the cage to be inserted into the outer ring in the axial direction in a state in which the axes of the outer ring and the cage are orthogonal to each other.
F16C 33/48 - Cages à rouleaux ou à aiguilles pour rangées de rouleaux ou d'aiguilles multiples
F16C 19/38 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p. ex. roulements à aiguilles pour charges à la fois axiales et radiales avec plusieurs rangées de rouleaux
F16C 23/08 - Roulements à billes ou à rouleaux à autoréglage
F16C 33/49 - Cages à rouleaux ou à aiguilles en forme de peigne
In the present invention, a plurality of column portions on one side of an annular body in the axial direction and a plurality of column portions on the other side of the annular body in the axial direction are arranged so as to have the same phase in the circumferential direction. The annular body has: an outer protruding section that protrudes further outward than the column portions in the radial direction and is guided into the inner circumferential surface of the outer ring; and a small distance portion that has a radial-direction distance that is smaller than the outer diameter of the outer protruding section in order to enable the cage to be inserted into the outer ring in the axial direction in a state in which the axes of the outer ring and the cage are orthogonal to each other.
F16C 25/08 - Roulements à billes ou à rouleaux à autoréglage
F16C 19/38 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p. ex. roulements à aiguilles pour charges à la fois axiales et radiales avec plusieurs rangées de rouleaux
F16C 33/48 - Cages à rouleaux ou à aiguilles pour rangées de rouleaux ou d'aiguilles multiples
F16C 33/49 - Cages à rouleaux ou à aiguilles en forme de peigne
A direction in which a leg part is inserted into a through hole is defined as an insertion direction, a direction opposite to the insertion direction is defined as a detachment direction, a direction parallel to an imaginary line connecting a pair of through holes when viewed from the detachment direction is defined as a longitudinal direction, and a direction orthogonal to the insertion direction and the longitudinal direction is defined as an orthogonal direction. A circulation component is composed of a first component and a second component. A dividing line for dividing the first component and the second component extends in the longitudinal direction when viewed from the orthogonal direction. The first component has a first body part and a pair of first leg parts. The second component has a second body part and a pair of second leg parts. A protruding part that protrudes outward in the longitudinal direction from the first leg parts is formed at an end portion of the first component in the return path direction. The protruding part abuts against the inner peripheral surface of the through hole from the inside in the longitudinal direction. An opening surrounded by the first leg parts and the protruding part is defined at an end portion of the first component. The end surface of the second component in the return path direction faces the surface of the protruding part in the detachment direction.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
This linear motion guide device comprises: a guide rail; a slider disposed so as to move relative to the guide rail in a longitudinal direction; and a plurality of rolling elements disposed so as to be rollable along a rolling element rolling path formed between the guide rail and the slider. The slider includes: a slider body that has a raceway groove disposed to face a raceway groove of the guide rail and forming the rolling element rolling path for the rolling elements and that also has a return path for the rolling elements; and an end cap that has a direction change path connecting the return path and the rolling element rolling path. A scooping-up part for scooping up the rolling elements to the direction change path is formed at an end part of the direction change path on the guide rail side, and the inner surface of the scooping-up part is a part of a cylindrical surface. The cylindrical surface has a center line that intersects with the axis of the raceway groove of the slider body and that connects to the center line of the direction change path in a tangential direction.
A nut of this ball screw includes a nut body and a deflector (12) attached to the nut body. The deflector (12) is disposed in an accommodation hole recessed outward in a radial direction from an inner circumferential surface of the nut. The deflector (12) includes a deflector body (30) having a circulation path (33), a protruding portion (31), and a relief portion (32). The protruding portion (31) protrudes in a direction intersecting one side surface (41) of the deflector body (30), and is locked to the nut body to restrict the deflector (12) from falling out from the accommodation hole in the radial direction. The relief portion (32) is provided at a position corresponding to a proximal end (39) of the protruding portion (31), and is recessed further toward the deflector body (30) side than the one side surface (41) of the deflector body (30). A chamfered portion (34) is provided between the proximal end (39) of the protruding portion (31) and the relief portion (32).
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
A brush unit is attached to a conductor, and abuts on a shaft conductive part provided on a rotary shaft to electrically connect the conductor and the shaft conductive part. The brush unit includes a concave-shaped holder, a brush abutting on the shaft conductive part via an opening part of the holder, and a biasing part that biases the brush. The brush has a first brush part and a second brush part having a larger outer shape than the first brush part. A projecting part of the holder is opposed to a surface of the second brush part to which the first brush part is connected in a biasing direction of the biasing part.
The present invention achieves a structure capable of reducing contact surface pressure of a contact portion between an input member and an engagement element, a contact portion between an output member and the engagement element, or both of the contact portions, in addition to reducing an increase in manufacturing cost. The present invention comprises: a pressed member 2 that has a pressed surface 6; and an input member 3, an output member 4, and an engagement element 5 that are disposed radially inward of the pressed surface 6. The engagement element 5 has a pressing surface 34 facing the pressed surface 6, an input-side engaged part 35 capable of engaging with an input-side engaging part 13 of the input member 3, and an output-side engaged part 36 capable of engaging with an output-side engaging part 21 of the output member 4. The engagement element is also disposed to be movable in a first direction that is a far-and-near direction with respect to the pressed surface 6, and has protruding curved surface parts 37, 38 in a portion to be engaged with the input-side engaging part 13 in the input-side engaged part 35 and/or a portion to be engaged with the output-side engaging part 21 in the output-side engaged part 36.
A ball bearing according to the present invention comprises an outer ring 1 and an inner ring 2, a plurality of balls 3 that are provided between the outer ring 1 and the inner ring 2 so as to be able to roll, a cage 4 that has pockets 4a that respectively hold the balls 3, shield plates 5 that close a bearing space S that is between the outer ring 1 and the inner ring 2 on respective sides in the axial direction, and grease G that is sealed in the bearing space S. In an initial sealed state, the grease G forms a seamless, continuous ring in the circumferential direction between an inner circumferential surface of the outer ring 1 and an outer circumferential surface of the inner ring 2 and contacts the balls 3 and an inner surface of the shield plates 5. The present invention thereby reduces noise and torque while maintaining the adhesion of the grease.
F16C 33/66 - Pièces ou détails particuliers pour la lubrification
F16C 19/06 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec une seule rangée de billes
F16C 43/04 - Assemblage des éléments de paliers à contact de roulement
47.
Rolling Bearing and Rolling Element Production Method
There are provided a rolling bearing and a rolling element production method, which can improve a flacking life. A rolling bearing includes an inner ring (2), an outer ring (3), and a rolling element (4). The rolling element (4) has a hardness of HRC61.1 or higher and a residual austenite content of 31 volt or less, and a ratio of a hardness of the rolling element (4) to a hardness of the inner ring (2) and the outer ring (3) is 1 or higher.
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 9/36 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour billesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour galets de roulement
F16C 19/26 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p. ex. roulements à aiguilles pour charges radiales principalement avec une seule rangée de rouleaux
A nut of the present disclosure includes a cylindrical nut main body penetrated by a screw shaft, a plurality of inner peripheral raceway surfaces and a plurality of S-shaped groove surfaces recessed to an outer side in a radial direction from an inner peripheral surface of the nut main body, and a flange protruding to the outer side in the radial direction from an outer peripheral surface of the nut main body. The flange includes at least one or more partial flanges extending only in a part of a circumferential direction along the outer peripheral surface of the nut main body.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
Provided is a ball screw device capable of holding a sufficient amount of lubricant in a circulation groove. This ball screw device comprises: a screw shaft having a shaft-side spiral groove in the outer peripheral surface thereof; a nut 3 having, in the inner peripheral surface thereof, a nut-side spiral groove 7 and a substantially S-shaped circulation groove 9 connecting an end point and a start point of a spiral load path 8 composed of the shaft-side spiral groove 5 and the nut-side spiral groove 7; and a plurality of balls 4 arranged on the inner side of the load path 8 and the circulation groove 9. The circulation groove 9 has, in the surface thereof, a recessed lubricant holding part 11 for holding the lubricant.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
50.
METHOD FOR DETECTING DEFECTS IN ROLLING BEARING, AND METHOD FOR DETECTING DETERIORATION STATE OF ROLLING BEARING
According to the present invention, the exact size and depth of defects on or inside the raceway surface of a rolling bearing, and even the type of defect, can be detected with high precision in a non-destructive manner, even for parts having a complicated shape such as the groove portion raceway surface of a small-diameter bearing. This method for detecting defects in a rolling bearing is a method for detecting defects on or inside the raceway surface of the rolling bearing, and includes a UT flaw detection step for performing ultrasonic flaw detection with respect to the raceway surface after finish polishing. Furthermore, this method for detecting the deterioration state of a rolling bearing includes detecting the deterioration state of the rolling bearing from defects in a surface layer portion of the raceway surface detected by the method for detecting defects in the rolling bearing, with respect to the raceway surface after the rolling bearing has been rotated for a predetermined time.
G01N 29/06 - Visualisation de l'intérieur, p. ex. microscopie acoustique
G01N 23/18 - Recherche de la présence de défauts ou de matériaux étrangers
G01N 23/046 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux en utilisant la tomographie, p. ex. la tomographie informatisée
G01N 23/083 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et mesurant l'absorption le rayonnement consistant en rayons X
Provided is a radial roller bearing that is capable of preventing falling of a roller and is capable of improving handleability and load resistance. The radial roller bearing comprises: a plurality of rollers that are arranged along the circumferential direction and that roll on at least one of the inner circumferential surface of a housing and the outer circumferential surface of a shaft; and a lubricant-containing polymer that holds the plurality of rollers.
F16C 33/66 - Pièces ou détails particuliers pour la lubrification
F16C 19/26 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p. ex. roulements à aiguilles pour charges radiales principalement avec une seule rangée de rouleaux
A grease composition includes: (A) a trimellitic acid ester, (B1) a phenyl α naphthylamine, (B2) an alkyl diphenylamine, (C1) a succinic acid half ester, (C2) a sorbitan monoester, and (D) a urea-based thickener. This grease composition is excellent in anti-flaking, rust prevention, and oxidation resistance properties, and furthermore, a fatigue life of a rolling device and the like in which the grease is enclosed can be maintained for a long time.
C10M 169/00 - Compositions lubrifiantes caractérisées en ce qu'elles contiennent comme constituants un mélange d'au moins deux types d'ingrédients, couverts par les groupes précédents, choisis parmi les matériaux de base, les épaississants ou les additifs, chacun de ces composés étant un composé essentiel
C10M 115/08 - Compositions lubrifiantes caractérisées en ce que l'épaississant est un composé organique non macromoléculaire, autre qu'un acide carboxylique ou ses sels contenant de l'azote
C10M 129/76 - Esters contenant des groupes hydroxyle ou carboxyle libres
C10M 133/12 - Amines, p. ex. polyalkylènepolyaminesAmines quaternaires comportant des groupes amine liés à un atome de carbone d'un cycle aromatique à six chaînons
C10M 141/06 - Compositions lubrifiantes caractérisées en ce que l'additif est un mélange d'au moins deux composés couverts par plus d'un des groupes principaux , chacun de ces composés étant un composé essentiel l'un d'eux, au moins, étant un composé organique contenant de l'azote
C10N 30/10 - Inhibition de l'oxydation, p. ex. anti-oxydants
C10N 30/12 - Inhibition de la corrosion, p. ex. agents antirouille, agents anticorrosifs
C10N 50/10 - Forme sous laquelle est appliqué le lubrifiant au matériau à lubrifier semi-solideForme sous laquelle est appliqué le lubrifiant au matériau à lubrifier huileuse
F16C 33/66 - Pièces ou détails particuliers pour la lubrification
53.
BALL SCREW AND METHOD FOR MANUFACTURING NUT FOR BALL SCREW
This ball screw is provided with a screw shaft, a nut (1), and a plurality of balls disposed between the nut (1) and the screw shaft. The nut (1) has: a helical groove (20) which is formed in a spiral shape on the inner peripheral surface (11) of the nut (1) and in which a plurality of balls roll; and a return groove (30) which is formed on the inner peripheral surface (11) and returns a ball from a first end (21) of the helical groove (20) to a second end of the helical groove (20). The return groove (30) is formed to have a depth dimension larger than the depth dimension of the helical groove (20). The return groove (30) has, at a boundary between the helical groove (20) and the return groove (30), a connection end part (33) formed so as to have, as a cross section, at least one of an inclined surface shape and a curved surface shape that extends from the bottom surface of the return groove (30) to the bottom surface of the helical groove (20).
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
B21J 5/12 - Formage de profilés sur des surfaces internes ou externes
B21K 1/68 - Fabrication d'éléments de machines d'écrous à partir de barres rondes ou profilées
A rolling bearing includes a first raceway ring having a first raceway surface, a second raceway ring having a second raceway surface, and a plurality of rolling elements held between the first raceway surface and the second raceway surface in a freely rollable manner. An oxide film containing Fe3O4 is provided on at least one of surfaces of the first raceway surface and the second raceway surface and surfaces of the rolling elements. A film thickness of the oxide film is 0.6 μm or more and 2.0 μm or less. A crystallite size calculated from a peak attributable to the (311) plane of the Fe3O4 is 2.5 nm or more and 3.2 nm or less.
C23C 8/14 - Oxydation de la couche superficielle de matériaux ferreux
F16C 19/10 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges axiales principalement
This rolling-bearing seal member is formed from only an elastic material without a core metal, and has projections formed on an axial end face at a plurality of positions over the entire circumference or intermittently in the circumferential direction. Accordingly, even if a plurality of said rolling-bearing seal members formed from only an elastic material without a core metal are placed as stacked together, the rolling-bearing seal members are less susceptible to adhering to one another and it is easier to individually take one rolling-bearing seal member when assembling a rolling-bearing seal member to a rolling bearing.
F16C 33/78 - Dispositifs d'étanchéité pour roulements à billes ou à rouleaux avec diaphragme, disque ou bague, avec ou sans parties élastiques
F16C 19/06 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec une seule rangée de billes
F16J 15/3204 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques avec au moins une lèvre
A brake device 1 comprises: a belt-like band member 10 that surrounds an outer peripheral surface of a shaft member 2 rotating around an axis Ax and fastens the shaft member 2 by being deformed; a drive device 20 that is disposed on the band member 10 and executes driving so as to cause deformation of the band member 10; a first contact part 31 that comes into contact with a first end part 10a of the band member 10 to stop rotation of the band member 10 when the band member 10 rotates in a first direction D1 around the axis Ax; and a second contact part 32 that comes into contact with a second end part 10b of the band member 10 to stop rotation of the band member 10 when the band member 10 rotates around the axis Ax in a second direction D2 opposite the first direction D1.
F16D 49/10 - Freins avec un organe de freinage coopérant avec la périphérie d'un tambour, d'une jante de roue ou d'une pièce analogue ayant la forme d'une bande d'encerclement s'étendant sur environ 360° actionnés mécaniquement
F16D 65/18 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée disposés dans, ou sur le frein adaptés pour rapprocher les organes par traction
F16D 121/24 - Électrique ou magnétique utilisant des moteurs
In a torque sensor (1), a sleeve (21) is an annular member mounted on a first rotating member. An intermediate member (26) is an annular member placed on an outer circumferential face of the sleeve (21). A magnet (25) is an annular member placed on an outer circumferential face of the intermediate member (26). A yoke (35) is mounted on a second rotating member and faces the magnet (25) in a radial direction. A rotating member connecting part (211) of the sleeve (21) is cylindrical and is in contact with the first rotating member. An intermediate member connecting part (215) is at a position shifted with respect to the rotating member connecting part (211) in an axial direction parallel to a central axis Z. An outer diameter (E219) of a sleeve end (219), which is an end of the intermediate member connecting part (215) opposite from the rotating member connecting part (211), is smaller than a minimum inner diameter (125) of the magnet (25).
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
G01L 5/22 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques pour la mesure de la force appliquée aux organes de commande, p. ex. organes de commande des véhicules, détentes
58.
TWO-SPEED TRANSMISSION AND ELECTRIC VEHICLE DRIVE DEVICE
The present invention realizes a structure of a two-speed transmission that can switch the speed reduction ratio between an input side and an output side in two levels, and that can be easily miniaturized. A two-speed transmission 1 comprises: a speed reduction unit 6 having a carrier 19 that rotates integrally with a transmission input element 4, a first sun element 20, a second sun element 21 that rotates integrally with a transmission output element 5, a first intermediate element 22 that is rotatably supported on the carrier 19 and engages with the first sun element 20 so as to transmit torque, and a plurality of second intermediate elements 23 that rotate integrally with the first intermediate element 22 and engage with the second sun element 21 so as to transmit torque; a first shift mechanism 7 that switches between a cutting mode in which the carrier 19 and the first sun element 20 are relatively rotatable and a connection mode in which the carrier 19 and the first sun element 20 are not relatively rotatable; and a second shift mechanism 8 that switches between a free mode in which the first sun element 20 is rotatable relative to a structure element 28 and a lock mode in which the first sun element 20 is not rotatable.
F16H 3/66 - Transmissions ayant au moins trois engrenages centraux composées d'un certain nombre de trains d'engrenage, sans entraînement passant d'un train à l'autre
In a thrust needle roller bearing, even in an environment where an amount of lubricating oil is small, the amount of lubricating oil is held and seizure is prevented. The thrust needle roller bearing includes a plurality of needle rollers, a bearing ring (31) having an annular raceway surface (31a) on which the needle rollers roll, and a cage that rollably holds the needle rollers, in which an oil repellent film (41a) is formed by oil repellent treatment on a portion of the raceway surface (31a) other than a portion in contact with the needle rollers.
F16C 19/30 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p. ex. roulements à aiguilles pour charges axiales principalement
F16C 19/46 - Roulements à aiguilles avec une rangée d'aiguilles
The electric friction engagement device has a function of detecting a phase in a rotational direction of a drive cam when an output torque or current value of a shift motor begins to increase at a rate of increase equal to or greater than a first threshold value as a piston touch point and a function of detecting a phase in the rotational direction of the drive cam when the rate of increase becomes equal to or less than a second threshold value after exceeding the piston touch point as a clutch touch point.
A multi-row tapered roller bearing (20) for rotatably supporting an axle (50) of a railway vehicle comprises: an outer seal member (30) having an outer cylindrical part (31) attached to an inner diameter part (21b) of an outer ring (21), and a standing plate part (32) extending radially inward from a width-direction outer end of the outer cylindrical part (31); a small-diameter step part (26) formed in a large-diameter flange part (25) of an inner ring (23) adjacent to an inner diameter end (32a) of the standing plate part (32); and an annular recess (61) provided at an edge of the inner peripheral surface of a small-diameter flange part (27) of one inner ring (23), said edge being on an inner-diameter-side of an inner-ring small-end surface (27a). The inner diameter end (32a) of the standing plate part (32) adjacent to the outer periphery of the small-diameter step part (26) faces, in the axle direction, a side wall surface (26b) between the large-diameter flange part (25) and the small-diameter step part (26) of the inner ring (23).
F16C 19/38 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p. ex. roulements à aiguilles pour charges à la fois axiales et radiales avec plusieurs rangées de rouleaux
F16C 33/60 - Chemins de roulementBagues de roulement en plusieurs pièces
F16C 33/78 - Dispositifs d'étanchéité pour roulements à billes ou à rouleaux avec diaphragme, disque ou bague, avec ou sans parties élastiques
F16C 33/80 - Dispositifs d'étanchéité pour roulements à billes ou à rouleaux à labyrinthes
This linear guide is provided with: a guide rail having a raceway surface; a slider having rolling elements that roll on the raceway surface; and a case that houses a lubricant supply member impregnated with a lubricant and that presses the lubricant supply member so as to make contact with the raceway surface. The lubricant supply member has: a pair of sleeve parts each having a contact section pressed against the raceway surface; and a connection part connecting the upper sections of the pair of sleeve parts. The connection part includes: at least one thin section having a thickness reduced in the vertical direction; and pressed sections that are disposed above and outward toward the right and left of the thin section, and are pressed outward toward the right and left by a pressing part provided to the case.
A reverse input blocking clutch (1) comprises: an input member (2); an output member (3); a pair of engagement elements (5, 5); press reception surfaces (77) that are pressed by the engagement elements (5); a first bearing mechanism (7); and a second bearing mechanism (8). The first bearing mechanism (7) rotatably supports the input member (2). The second bearing mechanism (8) rotatably supports the output member (3). An outer ring of at least one of the first bearing mechanism (7) and the second bearing mechanism (8) is an integrated outer ring in which the press reception surface (77) and an outer ring raceway groove in which balls of a ball bearing roll are integrally provided. The integrated outer ring has, at the groove bottom of the outer ring raceway groove, a radial thickness size that is less than or equal to the diameter of the balls.
F16D 43/20 - Embrayages automatiques à commande interne actionnés entièrement mécaniquement commandés par le couple, p. ex. embrayages à déclenchement en cas de surcharge, embrayages à glissement avec dispositifs par lesquels le couple fait varier la pression d'embrayage
F16D 63/00 - Freins non prévus ailleursFreins combinant plusieurs des types mentionnés dans les groupes
This reverse input blocking clutch (1) comprises: an input member (2) having an input shaft (21); an output member (3) having an output shaft (31); a pressed surface (62); a pair of engaging elements (5); a first bearing mechanism (7) that rotatably supports the input member (2); and a second bearing mechanism (8) that rotatably supports the output member (3). The outer ring of the first bearing mechanism (7) and the second bearing mechanism (8) is an integrated outer ring (61) in which a first outer ring raceway groove (73) in which a first rolling element (70) of the first bearing mechanism (7) rolls, a second outer ring raceway groove (83) in which a second rolling element (80) of the second bearing mechanism (8) rolls, and the pressed surface (62) are integrally provided.
F16D 41/10 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre à inversion automatique
A clutch device (1) comprises: an input member (2); an output member (nut (8)); a pressed surface (45); a pair of engaging elements (5); a first bearing mechanism (6) that rotatably supports the output member; and a ball screw (3). The ball screw (3) has a rotary member (nut (8)) mounted to rotate integrally with the output member, and a linear motion member (screw shaft (9)) screwed with the rotary member. An outer ring of the first bearing mechanism (6) is an integrated outer ring (61) in which the pressed surface (45) and a first outer ring raceway groove (63) in which a first rolling element (60) of the first bearing mechanism (6) rolls are integrally provided.
F16D 63/00 - Freins non prévus ailleursFreins combinant plusieurs des types mentionnés dans les groupes
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
66.
METHOD FOR CONTROLLING SUPPLY OF LUBRICANT, DEVICE FOR CONTROLLING SUPPLY OF LUBRICANT, AND PROGRAM
A lubricant supply control method for a device that lubricates a plurality of portions using a lubricant includes: measuring an impedance of an electric circuit including the plurality of portions by applying an AC voltage to the electric circuit; deriving an oil film thickness and a breakage rate of an oil film between the plurality of portions based on the measured impedance; and controlling at least one of a supply amount and a supply timing of the lubricant to the device based on the derived oil film thickness and breakage rate of the oil film so that a lubrication state between the plurality of portions becomes a predetermined lubrication state.
F16N 29/02 - Dispositifs particuliers dans les installations ou les systèmes de lubrification indiquant ou détectant des conditions indésirablesUtilisation des dispositifs sensibles à ces conditions dans les installations ou les systèmes de lubrification agissant sur l'alimentation en lubrifiant
F16C 33/66 - Pièces ou détails particuliers pour la lubrification
A quenching method is provided for workpieces including respective laces and having respective workpiece through-holes. A quenching method includes: a step of preparing a press quenching device capable of switching between a restraint state in which workpieces are restrained and an unrestraint state in which the workpieces are not restrained; a step of arranging a plurality of heated workpieces in a press quenching device that is in the unrestraint state; a step of restraining the restraint target areas of the workpieces by the press quenching device by causing the press quenching device to switch from the unrestraint state to the restraint state; and a step of cooling the restrained workpieces.
Forming a face spline comprises: a step of pressing a pressing die (39) against a caulking part (19a) with a first relative motion between the pressing die (39) and the caulking part (19a) around a reference axis (C); and a step of pressing the pressing die (39) against the caulking part (19a) with a second relative motion between the pressing die (39) and the caulking part (19a) around the reference axis (C). The first relative motion moves a partial machining position on the caulking part (19a) in a first circumferential direction. The second relative motion moves the partial machining position on the caulking part (19a) in a second circumferential direction opposite to the first circumferential direction.
B60B 35/14 - Essieux transmettant le couple composites ou coupés, p. ex. demi-essieuxLiaisons entre les éléments ou sections de l'essieu
F16C 19/16 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges à la fois radiales et axiales avec une seule rangée de billes
F16C 43/04 - Assemblage des éléments de paliers à contact de roulement
A wheel structure 1 comprises: a drive wheel 20 that rotates about a rotation axis Axr with respect to a body part 10; a vehicle body attachment part 30 that is capable of movement with respect to the body part 10 along a first axis Ax1; and a link mechanism part 40. The link mechanism part 40 is provided with: a first link member 41 that has a first connection part 41a which is connected to the body part 10 in such a manner as to be rotatable about a second axis Ax2, and a second connection part 41b to which a first non-driving wheel 50 is attached; a second link member 42 that has a fourth connection part 42a which is connected in such a manner as to be rotatable about a fourth axis Ax4 between the first connection part 41a and the second connection part 41b, and a fifth connection part 42b which is connected to the vehicle body attachment part 30 in such a manner as to be rotatable about a fifth axis Ax5; and a third link member 43 and a fourth link member 44 that have shapes which are in line symmetry with the first link member 41 and the second link member 42, with the first axis Ax1 serving as the axis of symmetry.
B62D 61/06 - Véhicules à moteur ou remorques, caractérisés par la disposition ou le nombre de roues et non prévus ailleurs, p. ex. quatre roues disposées en losange avec uniquement trois roues
Provided is a monitoring system that can monitor a belt conveyor device and detect an abnormality. The monitoring system comprises: wireless tags provided on idler rollers that guide an endless belt for conveying an object to be conveyed; and a data acquisition device that acquires data from the wireless tags, the idler rollers being to-be-monitored targets. Each wireless tag includes: a storage unit that stores identification information; a temperature sensor that detects the temperature of the idler roller and outputs temperature data according to the temperature; and a communication unit that transmits the identification information and the temperature data output by the temperature sensor. On the basis of the temperature data and the identification information acquired by the data acquisition device, the monitoring system monitors the to-be-monitored targets conveyed by the endless belt.
G01M 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
B65G 13/02 - Chemins de roulement comportant des rouleaux entraînés
B65G 39/16 - Aménagements des rouleaux montés sur châssis pour aligner les courroies ou les chaînes
B65G 43/02 - Dispositifs de commande, p. ex. de sécurité, d'alarme ou de correction des erreurs détectant une condition physique dangereuse des porte-charges, p. ex. pour stopper l'entraînement en cas d'échauffement
G06K 7/10 - Méthodes ou dispositions pour la lecture de supports d'enregistrement par radiation électromagnétique, p. ex. lecture optiqueMéthodes ou dispositions pour la lecture de supports d'enregistrement par radiation corpusculaire
G06K 19/07 - Supports d'enregistrement avec des marques conductrices, des circuits imprimés ou des éléments de circuit à semi-conducteurs, p. ex. cartes d'identité ou cartes de crédit avec des puces à circuit intégré
71.
ELECTRIC VEHICLE, AND METHOD FOR CONTROLLING ELECTRIC VEHICLE DRIVE DEVICE
B60T 7/12 - Organes d'attaque de la mise en action des freins par déclenchement automatiqueOrganes d'attaque de la mise en action des freins par déclenchement non soumis à la volonté du conducteur ou du passager
B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse
This EV unit comprises: a housing that is provided with a motor stator and that is electrically grounded; a shaft that is provided with a motor rotor and a gear of a speed reducer unit; a pair of motor bearings that pivotally support the shaft at positions on both axial-direction sides of the motor rotor; and a pair of speed reducer bearings that pivotally support the shaft at positions on both axial-direction sides of the gear. The shaft is electrically connected to the housing at a position on the reverse side from the motor rotor when viewed from the motor bearings. Each of the pair of motor bearings is an insulating bearing which is electrically insulating. Each of the pair of speed reducer bearings is a conductive bearing which is conductive.
H02K 5/173 - Moyens de support des paliers, p. ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques utilisant des roulements à rouleaux, p. ex. des roulements à billes
B60L 15/00 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train
H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
This spindle device comprises: a housing (2); a rolling bearing (21) that rotatably supports a rotating shaft (3) relative to the housing (2); a first outer ring spacer (41) that is disposed axially forward of the rolling bearing (21), which is exposed to a liquid atmosphere, and that positions the outer ring of the rolling bearing (21) in the axial direction relative to the housing (2); a first inner ring spacer (45) that is disposed radially inward of the first outer ring spacer (41) and that positions the inner ring of the rolling bearing (21) in the axial direction relative to the rotating shaft (3); grease reservoir recesses (42, 46) provided on an inner peripheral surface (41c) of the first outer ring spacer (41) and an outer peripheral surface (45c) of the first inner ring spacer (45), which face each other in proximity to each other; a surface treatment layer (50) having a water-repellent and oil-repellent effect applied to the surfaces of the first outer ring spacer (41) and the first inner ring spacer (45); and grease (60) filled in the grease reservoir recesses (42, 46).
A circulation module (40) in a ball screw (10) comprises: a pair of circulation units (41, 41), in which a nut insertion part (42) to be fitted into a through hole (32) of a nut (30) and a direction-changing part (43) that converts the direction of motion of balls are provided continuously, and which constitute a partial path of a ball circulation path; and a connection securing unit (50) that is disposed between the pair of circulation units (41, 41) and constitutes a remaining partial path of the ball circulation path that communicates with the partial path of the circulation units (41). The circulation units (41) each have pressure-receiving portions respectively provided at the ends of the direction-changing part (43) on the side opposite from the nut insertion part (42). The connection securing unit (50) has a securing part secured to the nut (30) and pressure-applying parts which are provided at both open-end sides of the remaining partial path to respectively press against the pressure-receiving portions.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
A structure is achieved that is capable of switching between enabling and disabling a rotation lock function at the time of a reverse input, said function locking rotation of an output member if a rotation torque has been reversely input into the output member. An output member 4 includes: a first element 33 which has an output-side engaging part 29; a second element 34 which has a torque output part 30, which is arranged coaxially with the first element 33, and which is supported so as to be relatively rotatable with respect to the first element 33; and a coupling member bridged between the first element 33 and the second element 34 so as to be capable of engaging with or disengaging from at least the first element 33 and/or the second element 34.
F16D 41/10 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre à inversion automatique
[Problem] To provide a wheel drive unit that facilitates reduction of the manufacturing cost of a sealing structure for sealing, from radially outside, an engagement region between a hub-side face spline and a joint-side face spline. [Solution] A sealing structure 53 includes an O-ring 43 and an annular cover member 44. The O-ring 43 is locked in a locking groove 45 provided in one of the outer peripheral surface of a hub 5 and the outer peripheral surface of a joint outer ring 22. The annular cover member 44 has: a proximal-side tubular portion 47 which is disposed on the radially outer side of an engagement region between a hub-side face spline 12 and a joint-side face spline 25 and is externally fitted and fixed to a fitting surface portion 46 provided on the other of the outer peripheral surface of the hub 5 and the outer peripheral surface of the joint outer ring 22; and a distal-side tubular portion 48 having an inner peripheral surface in elastic contact with the O ring 43.
B60B 35/14 - Essieux transmettant le couple composites ou coupés, p. ex. demi-essieuxLiaisons entre les éléments ou sections de l'essieu
F16C 19/18 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges à la fois radiales et axiales avec plusieurs rangées de billes
F16J 15/10 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre par garniture non métallique
In this ball screw, steel balls are divided into first steel balls arranged in a rolling path close to one end of a nut and second steel balls arranged in a rolling path close to the other end on the opposite side to the one end, and the direction of preload applied to the first and second steel balls changes where: if the nut is subjected to a compressional stress in the axial direction when a load in the axial direction is applied to the one end of the nut with respect to the screw shaft, the preload applied to the first and second steel balls is directed inward; and if the nut is subjected to a tensile stress in the axial direction when a load in the axial direction is applied to the one end of the nut with respect to the screw shaft, the preload applied to the first and second steel balls is directed outward.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
79.
BALL ARRANGEMENT METHOD FOR BALL BEARING, MANUFACTURING METHOD AND MANUFACTURING DEVICE FOR BALL BEARING, AND MANUFACTURING METHOD FOR MACHINE AND VEHICLE
A ball arrangement method for a ball bearing includes following steps executed in order: a ball insertion step of inserting a plurality of balls in one region along a circumferential direction of an annular space formed between an inner ring and an outer ring; a flow stop step of disposing a flow stop jig outside the one region of the annular space in the circumferential direction to keep the plurality of inserted balls in the one region; a block dividing step of disposing a block dividing jig to divide the plurality of balls into groups in the annular space; and a ball dividing step of, from a state in which the flow stop jig and the block dividing jig are disposed in the annular space, while removing the flow stop jig and the block dividing jig from the annular space, sequentially inserting tip ends of a plurality of work arrows protruded in accordance with the number of balls between the plurality of balls in an axial direction to arrange the plurality of balls at equal intervals in the circumferential direction.
A support mechanism (40) for rotatably supporting both axial ends of a screw shaft (21) comprises: a bearing unit (41) which has a movement-side bearing housing (51) and a pair of angular contact ball bearings (53) that are internally fitted to the movement-side bearing housing (51); a support base (43) which is provided to one side of the bearing unit (41) in the axial direction and through which the screw shaft (21) is inserted; and a housing position adjustment mechanism (60) which is provided between the bearing unit (41) and the support base (43). The housing position adjustment mechanism (60) is provided with: a support-base-side member (61) which is provided to the support base (43) side; a bearing-housing-side member (62) which is provided to the bearing housing (51) side and which is axially movable relative to the support-base-side member (61); a foam member (90) which is disposed in a pressure chamber (66) that is formed between the support-base-side member (61) and the bearing-housing-side member (62), and which has a foam core layer and a solid skin layer that covers the periphery of the foam core layer; and a working fluid (70) which is filled into spaces outside the foam member (90) in the pressure chamber (66). Thus, it is possible to continuously and stably maintain support rigidity in the axial direction even if the axial length of the rotary shaft changes due to the effects of heat.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
81.
ROTATION SUPPORT DEVICE, AND SUPPORT MECHANISM POSITION ADJUSTMENT MECHANISM FOR SHAFT SUPPORT DEVICE
A support mechanism (30) that rotatably supports both axial-direction ends of a screw shaft (21) is provided with a bearing unit (41) having a moving-side bearing housing (51) and a pair of angular contact ball bearings (33), a support base (43), and a housing position adjustment mechanism (44) disposed between the bearing unit (41) and the support base (43). The housing position adjustment mechanism (44) is provided with: a support-base-side member (61) provided on the support-base (43) side; a bearing-housing-side member (62) that is provided on the bearing-housing (51) side and is capable of moving relative to the support-base-side member (61) in the axial direction; a partition member (83) that is disposed within a space (66) formed between the support-base-side member (61) and the bearing-housing-side member (62), the partition member (83) dividing the space (66) in the axial direction into a first space (66A) and a second space (66B); a plurality of disc springs (70) and a first working fluid (80) that are accommodated in a compressed state in the first space (66A); and a foam member (90) and a second working fluid (81) that are accommodated in a compressed state in the second space (66B). This makes it possible to continuously and stably maintain axial support rigidity even if the axial length of a rotating shaft changes due to the influence of heat.
A state diagnosis method for a bearing device including a plurality of rolling bearings which are electrically connected, the method includes measuring an impedance of the plurality of rolling bearings as a whole by applying a voltage to the plurality of rolling bearings by an AC power supply while changing a frequency, deriving an impedance of each of the plurality of rolling bearings by fitting the impedance measured in the measurement step based on an equivalent circuit in which the plurality of rolling bearings are connected in series, and diagnosing a state of each of the plurality of rolling bearings based on the impedance of each of the plurality of rolling bearings derived in the derivation step.
F16C 19/52 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec dispositifs affectés par des conditions anormales ou indésirables
A ball screw device according to the present disclosure comprises a screw shaft, a nut, and a plurality of balls. The outer circumferential surface of the screw shaft is provided with an S-shaped groove surface, and the screw shaft has a corner portion where the outer circumferential surface, and an outer circumferential raceway surface and the S-shaped groove surface, intersect. The ball screw device satisfies expression (1), where Dw is the diameter of the balls, Rn is the radius of a circular arc forming a groove-perpendicular cross section of an inner circumferential raceway surface of the nut, α is the contact angle of the balls with respect to the inner circumferential raceway surface of the nut, θ1 is an angle within the groove-perpendicular cross section representing an effective range of the inner circumferential raceway surface of the nut, Dm is the diameter of a circle joining the centers of the plurality of balls disposed in the raceway, Ds is the diameter of the outer circumferential surface of the screw shaft, Q is the radial-direction distance between the outer circumferential surface of the screw shaft and a portion of the corner part positioned most on the inside in the radial direction if the vertex of the corner part of the screw shaft is shaved, and k (k>1) is a correction coefficient.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
84.
CAGE FOR DEEP GROOVE BALL BEARING AND METHOD FOR MANUFACTURING SAME
This cage for a deep groove ball bearing is made of resin and includes a first pocket for preventing the cage from falling off in a radial direction from the bearing, and a second pocket for preventing the cage from falling off in an axial direction from the bearing. The first pocket has the same cross-sectional shape along the axial direction, and includes, on at least a radially inner edge side or outer edge side, a narrowing portion that narrows an interval between a pair of adjacent pillar portions. The second pocket has the same cross-sectional shape along the radial direction, and includes a claw portion that narrows the interval between a pair of adjacent pillar portions at an edge portion on the opposite side from an annular portion.
F16C 33/41 - Cages à billes comportant une bague portant des doigts de séparation des éléments de roulement
F16C 19/06 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec une seule rangée de billes
85.
ROTATION SUPPORT DEVICE, AND SUPPORT MECHANISM POSITION ADJUSTMENT MECHANISM FOR SHAFT SUPPORT DEVICE
A support mechanism (30) for rotatably supporting an axial end portion of a screw shaft (21) comprises: a bearing unit (41) having a movement-side bearing housing (51) and a pair of angular ball bearings (33B); a support base (43); and a housing position adjustment mechanism (44) disposed between the bearing unit (41) and the support base (43). The housing position adjustment mechanism (44) comprises: a support-base-side member (61) provided on the support base (43) side; a bearing-housing-side member (62) provided on the bearing housing (51) side and capable of relative movement in the axial direction with respect to the support-base-side member (61); a working fluid accommodated in a pressure chamber (66) formed between the support-base-side member (61) and the bearing-housing-side member (62), in a storage chamber (71) formed in the support-base-side member or the bearing-housing-side member, and in an orifice (72) through which the pressure chamber (66) and the storage chamber (71) communicate; a disc spring (80) disposed inside the pressure chamber (66) in a state of being compressed between the opposing axial end surfaces of the support-base-side member (61) and the bearing-housing-side member (62); and a foam member (90) accommodated in the storage chamber (71). Through this configuration, axial-direction support rigidity can be continuously and stably maintained even if the axial length of a screw shaft or rotary shaft changes due to the effects of heat.
F16C 35/078 - Montage des roulements à billes ou à rouleauxLeur fixation sur l'arbre ou dans la carcasse d'enveloppe utilisant la pression d'un fluide pour aider au montage
B23Q 5/40 - Avance par transmission mécanique des autres organes supportant les outils ou les pièces, p. ex. avance des traînards, des glissières d'outils à avance continue par un arbre, p. ex. une vis-mère
F16C 25/08 - Roulements à billes ou à rouleaux à autoréglage
F16C 35/07 - Leur fixation sur l'arbre ou dans la carcasse d'enveloppe avec interposition d'un organe
F16C 35/12 - Supports rigides de paliersCorps de paliers, p. ex. calottes, couvercles pour broches avec roulements à billes ou à rouleaux
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
F16H 25/24 - Éléments essentiels pour ces mécanismes, p. ex. vis, écrous
A ball screw device includes: a nut having a first track path; an outer circumferential screw shaft having a second track path and a third track path; a plurality of first balls disposed between the first track path and the second track path; an inner circumferential screw shaft having a fourth track path; a plurality of second balls disposed between the third track path and the fourth track path; a first stopper fixed closer to an end of the outer circumferential screw shaft in a first direction; a second stopper fixed closer to an end of the inner circumferential screw shaft in a second direction; and a third stopper fixed closer to an end of the outer circumferential screw shaft in the second direction. The track of the first ball and the track of the second ball are helixes running in a same direction.
F16H 25/22 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaisonÉléments essentiels pour l'utilisation de ces organes
87.
TWO-STAGE TRANSMISSION AND ELECTRIC VEHICLE DRIVE DEVICE
[Problem] To provide a structure facilitating miniaturization of a drive device for an electric vehicle incorporating a two-stage transmission. [Solution] A two-stage transmission 2 is provided with a transmission input element 5, a transmission output element 6, a planetary reduction mechanism 7, a first shift mechanism 8, and a second shift mechanism 9. The planetary reduction mechanism 7 is disposed between the transmission input element 5 and the transmission output element 6 in the axial direction of the transmission input element 5.
The present invention efficiently reads data stored in RFID tags of a plurality of packing boxes. This data reading system comprises: a non-metal packing box that can store a metal product; an RFID tag that is provided inside the packing box and stores data pertaining to the metal product; and a data acquisition device that acquires data from the RFID tag. The packing box has adjacent surface parts adjacent to other packing boxes and side surface parts other than the adjacent surface parts. The RFID tag is provided between the metal product stored in the packing box and the side surface part.
B65G 1/137 - Dispositifs d'emmagasinage mécaniques avec des aménagements ou des moyens de commande automatique pour choisir les objets qui doivent être enlevés
G06K 7/10 - Méthodes ou dispositions pour la lecture de supports d'enregistrement par radiation électromagnétique, p. ex. lecture optiqueMéthodes ou dispositions pour la lecture de supports d'enregistrement par radiation corpusculaire
Provided is a magnetostrictive torque measurement device that makes it easy to ensure accuracy of torque measurement, sensitivity of torque measurement, or both. A magnetostrictive torque measurement device 1 comprises: a rotary shaft 2 that has a detected part 4 that has magnetostrictive characteristics at a portion in the axial direction of an outer circumferential surface; and a magnetostrictive torque sensor 3. The magnetostrictive torque sensor 3 includes: a holder 5 that is formed from a synthetic resin, has an inner circumferential surface 7 that is loosely fitted in the radial direction onto the outside of the detected part 4 so as not to rattle, and does not rotate even during use; and a coil unit 6 that is held by the holder 5 and has a detection part 12 that includes a plurality of detection coils 11 (11a–11d).
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
90.
SEALING DEVICE AND SEALING DEVICE-EQUIPPED BEARING UNIT
The present invention provides a sealing device-equipped bearing unit that has lubricant retention properties and that lowers torque. A sealing device (15) is constituted by: seal lips (19a, 19b, 19c) composed of an elastic material; and a mating member (slinger 17) with which the seal lips (19a, 19b, 19c) are in sliding contact. A plurality of dimples (20) are formed in the surface of the region of the mating member (slinger 17) that is in sliding contact with at least the seal lips (19a, 19b, 19c), each of the dimples (20) being constituted by a recess (21) further recessed than the surface of the mating member (slinger 17) and a first protrusion (22) protruding from the surface of the mating member (slinger 17) and surrounding the recess (21). Furthermore, a sealing device-equipped bearing unit (10) is provided with the abovementioned sealing device (15).
F16C 33/78 - Dispositifs d'étanchéité pour roulements à billes ou à rouleaux avec diaphragme, disque ou bague, avec ou sans parties élastiques
F16C 19/06 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges radiales principalement avec une seule rangée de billes
F16C 19/18 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges à la fois radiales et axiales avec plusieurs rangées de billes
F16J 15/324 - Agencements pour graissage ou refroidissement du joint d’étanchéité lui-même
F16J 15/3232 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques avec au moins une lèvre ayant plusieurs lèvres
F16J 15/3256 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques pourvus d’armatures ou de supports avec armatures ou supports rigides comprenant deux éléments d’armature ou de support, individuellement fixés sur chacune des surfaces, p. ex. joints de type cartouche
91.
METHOD FOR ACQUIRING CORRECTION VALUE FOR TORQUE SENSOR, AND METHOD FOR MEASURING TORQUE OF ROTATING SHAFT
The method comprises a step of: actually measuring an output values at a first and second reference temperatures for a torque sensor for which a correction value is to be acquired; determining a provisional correction function, which is a linear function showing a relationship between a temperature and the provisional correction values at the first and second reference temperatures, with using the output values at the first and second reference temperatures as the provisional correction values at the first and second reference temperatures; substituting at least one non-reference temperature into the provisional correction function to obtain a provisional correction value at the non-reference temperature, and correcting the provisional correction value at the non-reference temperature by a correction amount at the non-reference temperature obtained in advance, to obtain a correction value at the at least one non-reference temperature.
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
The present invention realizes an electric vehicle comprising a structure with which it is possible to reliably lock the rotation of a driving wheel when the vehicle stops. In a state in which torque with which a vehicle-stop position can be maintained is output by a driving motor 4 of each of one or more driving devices 2 among a plurality of driving devices 2, the output torque of a driving motor 4 of the remaining driving device 2 among the plurality of driving devices 2 is set to 0, as a result of which a pressing surface of an engagement element of a reverse input blocking clutch 6 of the remaining driving device 2 is brought into contact with a pressed surface, and then the output torque of a driving motor 4 of one or a plurality of the driving devices 2 among the one or more driving devices 2 is set to 0, as a result of which a pressing surface of an engaging element of a reverse input blocking clutch 6 of the one or of each of the plurality of driving devices 2 is brought into contact with a pressed surface.
B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse
F16D 41/08 - Roues libres ou embrayages à roue libre avec organes d'accouplement intermédiaires d'arrêt entre une surface intérieure et une surface extérieure avec moyens de modifier le fonctionnement en roue libre
93.
ASSEMBLING METHOD FOR MAGNETOSTRICTIVE TORQUE SENSOR, AND MAGNETOSTRICTIVE TORQUE SENSOR
Realized is an assembling method for a magnetostrictive torque sensor that can easily facilitate reduction in manufacturing costs. When the proportion of a body 12 of a flexible board 8 that faces the outer circumferential surface of a rotary shaft 2 is within a predetermined range in the case where the body 12 faces the whole circumference of the outer circumferential surface of the rotary shaft 2 is defined as 100%, a common flexible board 8 having the same length in the circumferential direction of the body 12 is used.
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
94.
METHOD FOR ASSEMBLING MAGNETOSTRICTIVE TORQUE SENSOR AND MAGNETOSTRICTIVE TORQUE SENSOR
When assembling a magnetostrictive torque sensor comprising a holder having a bobbin portion arranged around a rotating shaft to be measured, and a flexible substrate having a main body portion arranged around the bobbin portion and provided with a detection portion configured by a plurality of detection coils, a common flexible substrate having the same length in a circumferential direction of the main body portion is used when a percentage of the main body portion facing an outer circumferential surface of the rotating shaft is in a predetermined range, with a case where the main body portion of the flexible substrate faces the outer circumferential surface of the rotating shaft over an entire circumference being considered as 100%.
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
95.
CRIMPING JOINING METHOD, METHOD FOR MANUFACTURING HUB UNIT BEARING, METHOD FOR MANUFACTURING VEHICLE, METHOD FOR MANUFACTURING MACHINE DEVICE, AND CRIMPING DEVICE
B21J 9/02 - Réalisations ou structures particulières
B21D 39/00 - Utilisation de procédés permettant d'assembler des objets ou des parties d'objets, p. ex. revêtement par des tôles, autrement que par placageDispositifs de mandrinage des tubes
B21K 1/05 - Fabrication d'éléments de machines de cages de roulements
B60B 35/14 - Essieux transmettant le couple composites ou coupés, p. ex. demi-essieuxLiaisons entre les éléments ou sections de l'essieu
F16C 19/18 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges à la fois radiales et axiales avec plusieurs rangées de billes
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
Provided is a magnetostrictive torque measurement device with which accuracy and sensitivity of torque measurement are easily secured. A magnetostrictive torque measurement device 1 comprises: a support member 4 which is arranged around a rotary shaft 2 rotatably supported with respect to a structural element which does not rotate even in use, so as to be incapable of rotating relative to the structural element; a support bearing 5 which is arranged between the rotary shaft 2 and the support member 4 and supports the support member 4 so as to be able to rotate relative to the rotary shaft 2; and a magnetostrictive torque sensor 6 which is supported by the support member 4, and has an opposing surface 15 which is adjacent to and facing the outer peripheral surface of the rotary shaft 2, and a detection part 17 which is arranged on the outer diameter side of the opposing surface 15 and comprises a plurality of detection coils.
G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication
98.
SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD
The present invention provides a signal processing device and a signal processing method, which are capable of improving determination accuracy when determining a lubrication state of a rolling device by threshold value determination on a vibration-state physical quantity indicating a vibration state of the rolling device. The present invention is provided with: an oil-film state physical-quantity calculation unit 51 that, on the basis of a voltage signal applied between an inner ring 111 and an outer ring 112 of a bearing 11, calculates an oil-film state physical-quantity, which is a physical quantity related to an oil film of the bearing 11; and a determination threshold-value calculation unit 53 that calculates a vibration-state physical quantity, which is a physical quantity related to vibration of the bearing 11, on the basis of a measurement signal acquired by a sensor 2, and calculates a determination threshold value used for determining a lubrication state of the bearing 11 on the basis of correlation between the vibration-state physical quantity and the oil-film state physical quantity.
G01M 13/045 - Analyse acoustique ou des vibrations
G01H 17/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores non prévue dans les autres groupes de la présente sous-classe
99.
STATE MONITORING METHOD FOR MECHANICAL DEVICE, STATE MONITORING DEVICE, AND PROGRAM
This state monitoring method for a mechanical device that performs a rotation operation comprises an acquisition step for acquiring rotation speed data and vibration data during a rotation operation of the mechanical device, a conversion step for converting the vibration data from a time domain to an angle domain by using the acquired rotation speed data and the vibration data, a re-conversion step for reconverting the converted vibration data into a time domain based on a predetermined reference speed, and a diagnosis step for diagnosing a state of the mechanical device by using the converted vibration data. In the conversion step, when a section where a rotation speed is zero or approximately equal to zero is included in the rotation speed data, the rotation speed data is corrected so that the rotation speed is varied in the section, and then the vibration data is converted into an angle domain.
A two-speed transmission includes: a function of detecting a phase in a rotational direction of a drive cam when an output torque or current value of a shift motor starts increasing at an increase rate equal to or higher than a first threshold value, as a piston touch point, and/or a function of detecting the phase in a rotational direction of the drive cam, after exceeding the piston touch point, when the increase rate becomes equal to or less than a second threshold value, as a clutch touch point, and a function of, when switching between a high reduction ratio mode and a low reduction ratio mode, adjusting a rotation amount of the drive cam on the basis of the piston touch point and/or the clutch touch point.
