A wear-resistant assembly for an impeller and a pump housing, and a pump unit having the wear-resistant assembly. The wear-resistant assembly is mounted on the pump unit. The pump unit comprises an impeller (2) and a pump housing (3). The wear-resistant assembly comprises a pump housing axial wear-resistant ring (10), an impeller axial wear-resistant ring (11), and an elastic buffer member (16). The impeller axial wear-resistant ring (11) is fixedly mounted at an inlet of the impeller (2), the elastic buffer member (16) completely fits the inner wall of the pump housing (3), and the pump housing axial wear-resistant ring (10) completely fits the elastic buffer member (16). When the pump unit operates, the impeller (2) is subjected to an axial force pointing to a pump head, so that the impeller axial wear-resistant ring (11) moves to the pump housing axial wear-resistant ring (10) and completely fits same to form a pair of friction pairs F1 for dynamic sealing. The wear-resistant assembly has the advantages of preventing liquid in the pump from leaking and reducing friction resistance of the impeller.
A shielding can for a pump and a manufacturing method therefor. The shielding can is mounted on a centrifugal pump. The centrifugal pump comprises a motor (1), a head assembly (2) and a sealing ring (4). The motor (1) comprises a stator (11) and a rotor (12), the shielding can (3) being mounted in a gap between the stator (11) and the rotor (12). The shielding can (3) comprises three axial regions, i.e. a first axial region A, a second axial region B and a third axial region C, which are seamlessly connected in sequence and are coaxially arranged. The outer diameters of the first axial region A, the second axial region B and the third axial region C are successively increased. The end part of the third axial region C away from the second axial region B is connected to a flange extending outwards in the radial direction, the flange forming a fourth axial region D. The second axial region B has the minimum wall thickness amongst all of the axial regions, and is mounted to the inner diameter of the stator (11) by means of an interference fit. Compared with the prior art, the shielding can has advantages such as reducing eddy current loss and improving power density.
H02K 5/04 - Casings or enclosures characterised by the shape, form or construction thereof
F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
H02K 5/02 - Casings or enclosures characterised by the material thereof
H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
H02K 5/12 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
H02K 11/01 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields
H02K 9/197 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
A bearing retainer for a pump and a wet-operation pump unit having same. The bearing retainer is mounted on the wet-operation pump unit. The wet-operation pump unit comprises a pump head assembly (1), a shielding tank (5), a bearing retainer (6), a front bearing (7) and a rotor assembly (12). The bearing retainer (6) comprises a radially-extending disk surface (16), the radially-extending disc surface (16) is connected to a shielding tank fitting surface (22) in a sealed manner, and the radially-extending disk surface (16) or the shielding tank fitting surface (22) is provided with a through slot (17) for forming a first fluid passage (S1). The bearing retainer improves the manufacturing efficiency, saves costs, increases the assembly precision, and improves the efficiency of liquid flowing into the shielding tank.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
starters for motors and engines; pumps [parts of machines, engines or motors]; driving motors, other than for land vehicles; motors, electric, other than for land vehicles; hydraulic engines and motors; control mechanisms for machines, engines or motors; speed governors for machines, engines and motors; transmissions for machines; Transmission mechanisms, other than for land vehicles. amplifiers for servo motors; electronic controllers for servo motors; controllers for servo motors; sensors; electric actuators; electric linear actuators. electric vehicles; drive chains for land vehicles; transmission shafts for land vehicles; driving motors for land vehicles; engines for land vehicles; motors for land vehicles; propulsion mechanisms for land vehicles; motors, electric, for land vehicles; Bicycle motors.
The present invention relates to an injection molding stepping motor, including an injection molding stator assembly and a rotor assembly, wherein the injection molding stator assembly includes a stator iron core, a front framework, a rear framework, a stator winding, a front lining ring, a rear lining ring and a mounting bracket, the stator winding is wound in a groove of the stator iron core into which the front framework and the rear framework are inserted, the front lining ring and the rear lining ring are mounted on two sides of the stator iron core, the stator iron core is fixed on the mounting bracket, and the front lining ring and the rear lining ring each adopts a structure which is formed by punching and laminating thin plates with different inner diameters. Compared with the prior art, the present invention has the advantages of reducing axial magnetic flux leakage of a motor and improving the moment of the motor.
H02K 37/04 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of variable reluctance type with rotors situated within the stators
Provided is a double-rotor hybrid stepping motor, comprising an inner rotor iron core (9), an outer rotor iron core (10) and a third stator iron core (11), wherein an outer side of the third stator iron core (11) is provided with an outer stator main pole corresponding to the outer rotor iron core (10); an inner side of the third stator iron core (11) is provided with an inner stator main pole corresponding to the inner rotor iron core (9); the outer stator main pole and the outer rotor iron core (10) form an outer-rotor hybrid stepping motor; and the inner stator main pole and the inner rotor iron core (9) form an inner-rotor hybrid stepping motor. Compared with the prior art, the double-rotor hybrid stepping motor has the advantages of a low implementation cost, a wide application range, etc.
A dual-rotor motor, comprising: a fifth stator core (17, 22) shared by inner and outer rotor motors, an inner rotor structure, and an outer rotor structure. The inner rotor structure and the outer rotor structure are independently operated; an inner side mechanism corresponding to the inner rotor structure is provided on the inner side of the fifth stator core (17, 22), and an outer side mechanism corresponding to the outer rotor structure is provided on the outer side of the fifth stator core (17, 22). Compared with the prior art, the present invention has the advantages of low implementation cost, a wide application range, excellent performance, and the like.
H02K 16/02 - Machines with one stator and two rotors
H02K 1/274 - Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
H02K 1/279 - Magnets embedded in the magnetic core
The present invention relates to an injection-molded stepper motor, comprising an injection-molded stator assembly and a rotor assembly. The injection-molded stator assembly comprises a stator iron core, a front framework, a rear framework, a stator winding, a front liner ring, a rear liner ring, and a mounting rack. The stator winding is wound in recesses of the stator iron core to which the front and rear frameworks are inserted. The front liner ring and the rear liner ring are mounted on either side of the stator iron core. The stator iron core is fixed to the mounting rack. The front liner ring and the rear liner ring both use a structure formed by stamping and stacking thin plates having different inner diameters. Compared with the prior art, the present invention has the advantages of reducing axial magnetic leakage of a motor and increasing torque of a motor.
A split nut combination, comprising a first nut (1) and a second nut (2) which are completely split from each other, the first nut (1) and the second nut (2) have the same pitch and lead, and fit or move on the same threaded shaft (3). The split nut combination has the advantages of good clearance elimination effect, long service life and convenient disassembly.
F16H 25/24 - Elements essential to such mechanisms, e.g. screws, nuts
F16B 37/10 - Quickly-detachable nuts, e.g. consisting of two or more partsNuts movable along the bolt after tilting the nut divided parallel or about parallel to the bolt axis
Disclosed is a nut for irreversibly eliminating a clearance, the nut comprising a first nut body (1) and a second nut body (3), both of which have an internal thread, and further comprising a shrink ring (2), which is disposed between the first nut body (1) and the second nut body (3) and is radially shrinkable. One side, connected to the shrink ring (2), of each of the first nut body (1) and the second nut body (3) is respectively provided with a nut body chamfer (5), and the position, corresponding to the nut body chamfer (5), on the shrink ring (2) is provided with a shrink ring chamfer (4). After the nut is mounted, a shrink force provided by the shrink ring (2) pushes the first nut body (1) and the second nut body (3) away by means of the chamfers so as to eliminate the axial clearance of the nut.
The invention relates to a nested winding for a slotless motor. The nested winding is formed by inner and outer windings which are nested together and have different inner and outer diameters, wherein the number of the inner and outer windings is n, same-phase coils are connected in parallel or in series, and the number n of the nested inner and outer windings is equal to or greater than two. Compared with the prior art, the nested winding has the following advantages: a potential difference between the coils connected in parallel can be effectively reduced, and accordingly, the loss of the winding is reduced, and the high-speed operating performance of the motor is improved.
Disclosed is a nested winding used for a non-cogging electric motor, wherein the winding is formed of n nested coils with different inner and outer diameters, and coils with the same phase are connected in parallel or in series, wherein the number of nested coils n is greater than or equal to 2. Compared with the prior art, the winding can effectively reduce potential difference between coils connected in parallel, thereby reducing loss in the winding, and having advantages such as increasing the high speed operating performance of an electric motor.
Provided is a stepping motor, comprising a stator core (1), a rotor core (4), and a magnetic steel (6). The stator core (1) is evenly provided with a plurality of stator main poles (2) in a circumferential direction, and an inner end of each of the stator main poles (2) has Ns stator teeth (3). The rotor core (4) is evenly provided with Nr rotor teeth (5) in a circumferential direction, wherein 0.60 *Dso ≤ Dsi, and Dro ≤ 0.75*Dso; 0.85*Br*Nr≤Sm = π*(Dmo2-Dmi2)/4 ≤ 2.0*Br*Nr; Dri ≤ Dmi; Dso is the outer diameter of the stator, Dsi is the inner diameter of the stator, Dro is the outer diameter of the rotor, Br is the width of the rotor tooth, Nr is the number of the rotor teeth, Sm is the magnetic area of the magnetic steel, Dmo is the outer diameter of the magnetic steel, Dmi is the inner diameter of the magnetic steel, and Dri is the inner diameter of the rotor. Compared with the prior art, the technical solution has the advantages of reducing harmonics of back electromotive force and reducing vibration noise of the motor.
H02K 37/10 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
Provided is a two-phase disc type stepping motor, comprising a housing (5), an end cap, a disc type magnet rotor (4), a toroidal winding (3) and a stator core. The stator core comprises an H-shaped stator core (1) and an I-shaped stator core (2). The I-shaped stator core (2) group is arranged in the circumference of the end cap, and the H-shaped stator core (1) group is circumferentially arranged and inserted into indexing slots of the housing (5). The motor has the advantages of stable performance and low temperature rise.
Starters for motors and engines; driving motors, other than
for land vehicles; motors for boats; motors, electric, other
than for land vehicles; control mechanisms for machines,
engines or motors; hydraulic engines and motors; pumps
[parts of machines, engines or motors]; valves [parts of
machines]; transmissions for machines; hydraulic controls
for machines, motors and engines.
16.
EIGHT-POLE, TWO-PHASE BIPOLAR STEP MOTOR WITH EASE-OF-MANUFACTURE AND OPTIMIZED TORQUE SIZE
An eight-pole, two-phase bipolar step motor with ease-of-manufacture and optimized torque size, the number of stator teeth therein being close to the number of rotor teeth therein to provide an improved torque. The two-phase bipolar step motor comprises an eight-pole stator with a plurality of stator teeth uniformly arranged on each pole. If D is the nominal inner diameter of the stator expressed in millimeters, then a number of stator teeth per pole equal to D ÷ 3 (rounded to the nearest integer) will provide a required winding needle space between adjacent stator poles. The step motor also has a rotor mounted for rotation within the stator and having a plurality of rotor teeth. The respective numbers of rotor and stator teeth may differ by at most two, or have a tooth ratio greater than 95%. The teeth should have a minimum tooth width and separation of at least 0.5 mm for adequate contrasting magnetic definition (polarity and/or flux amplitude) in the rotor-stator interaction.
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
17.
Hollow cup winding capable of reducing distribution coefficient
The present invention relates to a hollow cup winding capable of reducing distribution coefficient, comprising N phases of windings, where each phase of the windings consists of k (360/k/N)° coil units and the k coil units constitute of backing coil assemblies and forward coil assemblies. Compared with the prior art, the present invention has the advantages of improving motor performance and of being highly universal.
The present invention relates to a shaft-embracing permanent magnet inter-shaft glued stator structure of a high-speed motor; the structure is a shaft-embracing permanent magnet integrated structure; the rotor structure comprises a permanent magnet (2), an output shaft (1) which is connected with one end of the permanent magnet (2) and embraces one part of the permanent magnet (2), and a rear shaft (4) which is respectively connected with the other end of the permanent magnet (2) and the output shaft (1), used for embracing the other part of the permanent magnet (2), and connected with the output shaft (1) to form a sealing mechanism of the permanent magnet (2). Compared with the prior art, the present invention has advantages of good electro-magnetic performance, high reliability, high productivity and good concentricity.
Disclosed is a stepping motor (71) capable of reducing vibration, having a stator winding assembly (60) with an annular permanent magnet (67). The annular permanent magnet (67) is radially positioned outside a solenoid coil (64) of a stator pole (66), the annular permanent magnet (67) magnetizes rotors (33, 35, 73, 74) by positioning a bearing on an axial shaft (31, 79) so as to rotate inside the stator winding assembly (60), and thus release the space inside the rotors (33, 35, 73, 74) occupied by inner dampers. The rotors (33, 35, 73, 74) have a cylindrical weight device (41), the weight device (41) is sealed inside the rotors (33, 35, 73, 74), and the rotary inertia moment of the weight device (41) approximately matches that of the rotors (33, 35, 73, 74). The weight device (41) is elastically connected to the rotors (33, 35, 73, 74) via an adhesive material (43), and the adhesive material (43) is contained in the rotors (33, 35, 73, 74) and fills the space between the weight device (41) and the rotors (33, 35, 73, 74), and the space between the weight device (41) and the axial shaft (31, 79). The viscosity of the material (43) is selected to retard the movement of the weight device (41), so that the stepping rotation of the rotors (33, 35, 73, 74) preferably shifts by a phase of approximately 180° but at the same frequency. Therefore, the weight device (41) is used as a counterweight of the rotors (33, 35, 73, 74) to eliminate the vibration generated during the stepping of the rotors (33, 35, 73, 74).
Starters for motors and engines; driving motors, other than for land vehicles; motors for boats; motors, electric, other than for land vehicles; hydraulic engines and motors; pumps as parts of machines, engines or motors; valves being parts of machines; transmissions for machines; control mechanisms, namely, pneumatic controls for machines, engines or motors
A centrally-distributed coreless winding comprises layer-staggered conductors (2-2), normal conductors (2-1) and winding taps (3). The layer-staggered conductors are disposed in the middle position of the winding in a centralized manner, the normal conductors are distributed on two sides of the layer-staggered conductors, and each winding tap is located on two end portions of the corresponding normal conductor, the wire density of the middle part of the winding is higher than that of the normal conductors. The winding manner can effectively improve the counter potential of a coreless motor, and can further improve performance of the motor.
A coreless winding for reducing a distribution coefficient comprises N phase windings. Each phase winding consists of k coil units (6-11) at ((360/N)/k)°. The k coil units form a backing coil group and a forwarding coil group. The winding manner can improve performance of a motor and has good versatility.
A double-layer winding applicable to a coreless motor, and a manufacturing method therefor. The double-layer winding comprises an A-phase double-layer winding, a C-phase double-layer winding, and a B-phase double-layer winding. The manufacturing method comprises: a winder sequentially winds an A-phase inner-layer winding, a B-phase inner-layer winding and a C-phase inner-layer winding on a winding mold, and then reversely winds a C-phase outer-layer winding, a B-phase outer-layer winding and an A-phase outer-layer winding. Two layers of windings can be manufactured by performing winding for only one time, thereby reducing the possibility of error accumulation.
A gelatinizing device and gelatinizing method for the side surface of a stator iron core. The gelatinizing method comprises: tidily stacking stator iron cores (2) by using a die (1); and uniformly spraying glue to the inner side surfaces (22) or the outer side surfaces (21) of part of the stacked stator iron cores (2) by using a glue spray nozzle (3). Compared with the prior art, the gelatinizing device and the gelatinizing method increase the productivity of stator iron cores, and overcome the defects of an inter-chip gelatinizing technology.
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
25.
INTER-AXIAL CEMENTING ROTOR STRUCTURE FOR HIGH-SPEED MOTOR SHAFT-HOLDING PERMANENT MAGNET
An inter-axial cementing rotor structure for a high-speed motor shaft-holding permanent magnet. The structure is of a shaft-holding permanent magnet integrated structure. The rotor structure comprises: a permanent magnet (2); an output shaft (1), connected to one end of the permanent magnet (2), and holding one part of the permanent magnet (2); and a rear shaft (4), separately connected to the other end of the permanent magnet (2) and the output shaft (1), for holding the other part of the permanent magnet (2), and connected to the output shaft (1) to form a sealing mechanism of the permanent magnet (2). The rotor structure has the advantages of good electromagnetic performance, high reliability, high production efficiency, good concentricity, and the like.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
35 - Advertising and business services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Conversion apparatus (fuel -) for internal combustion
engines; igniting devices for internal combustion engines;
metalworking machines; starters for motors and engines;
stators [parts of machines]; dynamos; generators of
electricity; alternators; igniting magnetos; driving motors
other than for land vehicles; motors for boats; motors,
electric, other than for land vehicles; bicycle dynamos;
control cables for machines, engines or motors; control
mechanisms for machines, engines or motors; hydraulic
engines and motors; pumps [parts of machines, engines or
motors]; valves [parts of machines], speed governors for
machines, engines and motors; bearings [parts of machines];
ball-bearings; bearings for transmission shafts;
anti-friction bearings for machines; self-oiling bearings;
transmissions for machines; bearing brackets for machines;
ball rings for bearings; roller bearings; belts for
machines; vehicle washing installations; robots [machines];
guides for machines; controls (hydraulic -) for machines,
motors and engines. Data processing apparatus; couplers [data processing
equipment]; readers [data processing equipment]; readers
(bar code -); software (computer -), recorded; monitors
[computer hardware]; smart cards [integrated circuit cards];
monitors [computer programs]; integrated circuit cards
[smart cards]; light-emitting electronic pointers; branch
boxes [electricity]; navigational instruments; network
communication equipment; monitoring apparatus, electric;
speed measuring apparatus [photography]; surveying apparatus
and instruments; meters used for internal combustion engine
testing; ozonisers [ozonators]; measuring apparatus and
instruments; measuring devices, electric; probes for
scientific purposes; diaphragms for scientific apparatus;
simulators for the steering and control of vehicles;
electricity mains (materials for -) [wires, cables];
semi-conductors; chips [integrated circuits]; electronic
chips; semiconductor apparatus; low voltage power supply;
lighting ballasts; stable power source; transformers
[electricity]; switches, electric; distribution consoles
[electricity]; control panels [electricity]; regulating
apparatus electric; transducer; junction boxes
[electricity]; connections, electric; time switches,
automatic; dimmers [regulators] (light -), electric; remote
control apparatus; remote control of industrial operations
(electric installations for the -); electrolysers; theft
prevention installations, electric; batteries, electric;
detectors. Motors, electric, for land vehicles; engines for land
vehicles; driving motors for land vehicles; propulsion
mechanisms for land vehicles; transmission chains for land
vehicles; transmission shafts for land vehicles; driving
chains for land vehicles; motors for cycles; aeronautical
apparatus, machines and appliances; electric vehicles; pumps
(air -) [vehicle accessories]. Publicity; presentation of goods on communication media, for
retail purposes; business management consultancy; providing
business information via a web site; import-export agencies;
sales promotion for others; marketing; systemization of
information into computer databases; management consultancy
(personnel -); auditing. Technical research; mechanical research; research and
development for others; quality control; vehicle
roadworthiness testing; testing (material -); design
(industrial -); computer programming; computer software
design; computer software (updating of -); computer software
(maintenance of -); computer software consultancy; computer
hardware (consultancy in the design and development of -);
cloud computing.
27.
BALL SCREW ASSEMBLY HAVING A LUBRICANT STORAGE FUNCTION
A ball screw assembly having a lubricant storage function and method of lubricating a ball screw. The assembly comprises a ball screw (11) and a nut (27) driven by a stepper motor (13), and has recesses (59, 87) used to hold a high-viscosity lubricant. The high-viscosity lubricant is semi-solid at the ambient temperature and is separated from the ball screw. The flow of the lubricant can ensure reciprocating ball screw motion of the ball screw and the nut, and the slow flow of the lubricant caused thereby in turn coats a thin layer of the lubricant on the ball screw. The nut may be one of an anti-backlash nut and a single-member nut, both having a recess used to store the lubricant around the ball screw.
A stepping linear motor comprises a stator (1), a rotor (2), a screw (3), a rotor shaft (4), a left end cover (5), a right end cover (6), bearings (7), and a plastic nut (8). The screw (3) and the rotor shaft (4) are in transmission connection. The rotor shaft (4) and the rotor (2) are in transmission connection. The bearings (7) are disposed on the two ends of the rotor shaft (4). The left end cover (5) and the right end cover (6) are disposed on the two ends of the stator (1) respectively and then enclose the rotor (2). The rotor shaft (4) has a hollow structure. The plastic nut (8) is provided with threads matching the screw (3). The screw (3) is connected to the plastic nut (8) and then extends into the rotor shaft (4). Compared with the prior art, the stepping linear motor has the advantages of high precision, good concentricity, good universality and the like.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
35 - Advertising and business services
42 - Scientific, technological and industrial services, research and design
Goods & Services
[ Enhancement parts for internal combustion engines, namely, fuel catalysts; ignition devices for motors of land vehicles; metalworking machines, namely, machining centers; starters for motors and engines; ] stators being parts of machines; [ dynamos; electrostatic generators; alternators; ignition magnetos for engines; ] variable frequency drives for motors, other than for land vehicles; [ motors for boats; ] electric motors, not for land vehicles; [ dynamos for bicycle; hydraulic control cables for machines, engines and motors; pneumatic control mechanisms for machines, engines and motors; ] hydraulic engines and motors; pumps as parts of machines, motors and engines; values being parts of machines; speed governors for machines, engines and motors; [ bearings, as parts of machines; ball bearings for use in machines, namely, ball bearings for use in printers, ball bearings for use in lighting and audio equipment used on stages, ball bearings for use in sensor antennas, ball bearings for use in base station antennas, ball bearings for use in textile machinery, ball bearings for use in automobile engines and transmission shafts; bearings for transmission shafts, being parts of machines; anti-friction bearings, as parts of machines; self-oiling bearings, as parts of machines; ] transmissions for machines; [ bearing brackets for machines; ball rings for bearings for machines, namely, ball rings for bearings for printers, ball rings for bearings for use in lighting and audio equipment used on stages, ball rings for bearings for sensor antennas, ball rings for bearings for base station antennas, ball rings for bearings for textile machinery, ball rings for bearings for use in automobile engines and transmission shafts; roller bearings for machines; belts for machines; vehicle washing installations; industrial robots; ] machine parts, namely, joints and joint parts for connecting sliding strips, plates and guides [; hydraulic controls for machines, motors and engines ] Data processing apparatus; [ data processing equipment, namely, couplers; USB card readers; bar code readers; computer operating software; computer monitors; blank smart cards; ] computer software to monitor and control factory manufacturing processes; [ blank integrated circuit cards; luminous pointers; junction boxes; electric navigational instruments; ] wireless communication devices for voice, data or image transmission; [ electric monitoring apparatus for monitoring flowmeters; speedometers; surveying machines and instruments; electric meters used for internal combustion engine testing; ozonisers; measuring apparatus and instruments, namely, angle finders, rain gauges, bevels, radioactivity measurer; measuring devices, namely, fluorometers; ] ultrasound probes, not for medical use; [ simulators for the steering and control of vehicles; ] electric cables and wires; [ semi-conductors; electronic chips for the manufacture of integrated circuits; semiconductor devices; ] low voltage power supplies; lighting ballasts; voltage stabilizing power supply; [ electric transformers; ] electric switches; electricity distribution consoles; electric control panels; [ electric regulating apparatus for regulating electric current; ] electrical transducer; [ electric junction boxes; ] electric connections; [ time switches; ] electric light dimmers [; electronic apparatus for the remote control of industrial operations; electrolysers; electric theft prevention installations, namely, burglar alarms; batteries, electric; detectors, namely, carbon dioxide detector, laser speed detectors, gamma radiation detectors ] [ Vehicles, namely, armored vehicles, truck campers, refrigerated vehicles, railbound vehicles, electronically motorized skateboards; ] driving motors for land vehicles; propulsion mechanisms for land vehicles; [ transmission chains for land vehicles; drive shafts for land vehicles; driving chains for land vehicles; ] motors for bicycles [; electric vehicles, namely, electric cars, electrical train; air pimps for automobiles ] [ Advertising and advertisement services; providing television home shopping services in the field of general consumer merchandise; business management consultation; providing business information via a website; goods import-export agencies; sales promotion for third parties; marketing services; compilation and systemization of information into computer databases ] [; personnel management consultancy; account auditing ] [ Technical research in the field of aeronautics; mechanical research; ] research and development of new products for others [; quality control for others; vehicle roadworthiness testing; material testing; industrial design; computer programming; computer software design; up-dating of computer software; maintenance of computer software; computer software consultancy; design and development of computer hardware; consulting services in the field of cloud computing ]
A hybrid stepping motor comprises a front end cover (1), a rear end cover (2), a rotating shaft (3), a rotor (4), a stator (5), a front bearing (6), a rear bearing (7), and magnetic steel (8). The stator is an injection-molded stator. Multiple injection molded frames (52) used for carrying enameled wire windings are disposed in a stator iron core (51). An enameled wire protection plate (53) is separately disposed at the inner side of each injection molded frame. The inner edge of the each enameled wire protection plate forms an inner hole (54) of the stator. Each enameled wire protection plate is used as a motor assembling spigot. According to the motor, the thickness of the motor can be further reduced or the torque of the stepping motor can be improved.
A liner stepper motor having an anti-rotation screw comprises a stator (6), a rotor (5), a front end cover (3), a rear end cover (7), and a screw (2). The screw (2) is an anti-rotation screw. The anti-rotation screw comprises a screw body. One end of the screw body is covered by a plastic anti-rotation structure (8) that is injection molded. An inner cavity matching the shape of the anti-rotation structure (8) is disposed on the front end cover (3). The anti-rotation structure (8) of the screw (2) is engaged with and connected to the inner cavity of the front end cover (3). The liner stepper motor has the advantages that the machined length of the screw (2) is not limited, and the screw (2) has the desirable strength, maintains the precision, such as the concentricity, and results in smaller errors during use. The machining steps of the screw (2) of the liner stepper motor are less, metal profiles are consumed less, and working hours and energy are conserved. The injection molded anti-rotation structure (8) of the screw (2) is self-lubricating, so that the efficiency is high and the service life is long when the screw (2) acts in concert with the motor to move in a straight line.
Disclosed is a linear stepper motor, comprising a stator (1), a rotor (2), a rotor shaft (4) and a screw (3), wherein an inner plastic nut (8) for being connected to the screw (3) in a transmitting manner is provided in the rotor shaft (4); the rotor shaft (4) is a hollow metal shaft, the inner wall thereof being provided with an annular groove (41) for embedding the inner plastic nut (8); a concave-convex structure (42, 43) is provided on the wall of the annular groove for preventing the inner plastic nut (8) from radial rotation and axial movement; and the inner plastic nut (8) is embedded in the annular groove (41) and engages with the concave-convex structure (42, 43). The rotor and the injection-moulded nut of the linear motor have a high strength, a long service life, high transmission efficiency, and a relatively low heat generation.
A valve core position controlling device for controlling the valve core to move between a first position and a second position, includes a driving cam (3) driven by a motor (1) to output a pre-determined angle rotation, a first switch controlling assembly (5) and a second switch controlling assembly (6), the driving cam (3) is provided with a controlling profile (30) with at least one recess (31a), the first switch controlling assembly (5) includes a first returning frame (53) which can pivot about a pivot (530) and has a force receiving side (531) and a pressing side (532), a first sliding block (51) is provided at the force receiving side (531) and pushes against the controlling profile (30) of the driving cam (3) to provide a returning force for the first returning frame (53), a first metal contacting plate (54) is provided at the pressing side (532) and acts as the first returning frame (53) pivots, so as to contact with or separate from a first electricity conducting plate (55), and to select the circuit between a power source and a power input end of the motor (1). The second switch controlling assembly (6) is the same as the first switch controlling assembly (5).
A motor, including a motor housing (10), an oilless bearing (30), a rotor, a stator, a rotational shaft,and a mount which is fixed to the rotor and the rotational shaft, the rotational shaft of the motor which is installed into the motor housing (10) by the oilless bearing (30), wherein the projection (20) with an opening is formed at the motor housing (10), the oilless bearing (30) is set in this projection (20), and this rotational shaft passes through the opening. The motor has a function of preventing oil leakage, thus the volatilization area of the oil in the oilless bearing (30) of the motor reduces greatly, and the service life of themotor is elongated.
A wire cover for a motor. The wire cover includes wire outlets with wires passing through, the wires are connected to the connecting terminals of the motor. The wire outlets are slots (100, 200, 300) with wire entrances (110, 310) and wire hold portions (112, 312). The largest widths of the wire hold portions (112, 312) are smaller than the outer diameters of the wires. The wires are engaged to the wire hold portions (112, 312) through the wire entrances (110, 310).
A claw pole of a stepper motor. The claw pole includes a first claw-pole piece (21) with a ring type, a second claw-pole piece (23) with a ring type and several claw-pole teeth (25). The second claw-pole piece (23) and the first claw-pole piece (21) are formed into a laminate structure. The first claw-pole piece (21) and the claw-pole teeth (25) are formed in one-piece.
