A three-position four-way directional control valve, a control method, and a control apparatus. The three-position four-way directional control valve comprises a valve body and an end cover. A valve sleeve, a first valve spool, and a second valve spool are disposed inside the valve body. The first valve spool is movably disposed within the valve sleeve, and the second valve spool is movably disposed within the first valve spool. Movement of the second valve spool drives the first valve spool to move so as to control fluid flow. The three-position four-way directional control valve achieves precise control in directional switching and flow regulation by controlling the positions of multiple valve spools, while featuring a compact and simple structure.
F15B 13/02 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs
F16K 11/065 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des tiroirs à éléments de fermeture glissant linéairement
An integrated pump station includes: a mounting frame, a pump body, and an electric drive device. The pump body is arranged on the mounting frame; the electric drive device comprises a housing body, a motor, a frequency converter and a controller; the housing body is arranged on the mounting frame; the motor, the frequency converter and the controller are arranged in the housing body, the motor being connected to the pump body; the motor is connected to the frequency converter by means of an electric wire, the frequency converter is connected to the controller by means of an electric wire, and a water cooling pipeline of the motor, a water cooling pipeline of the frequency converter and an oil cooler of the pump body sequentially communicate with one another.
F04B 53/08 - RefroidissementChauffagePrévention du gel
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
F04B 53/16 - Carcasses d'enveloppeCylindresChemises de cylindre ou culassesConnexions des tubulures pour fluide
3.
UNDERGROUND INTELLIGENT AUDIO AND VIDEO COMMUNICATION METHOD AND APPARATUS BASED ON TIME-SENSITIVE NETWORKING
Provided are an underground intelligent audio and video communication method and apparatus based on time-sensitive networking, and an electronic device, a storage medium, a computer program product and a computer program. The method comprises: performing time synchronization on a first-type underground device and a second-type underground device, wherein the first-type underground device is used for data collection, and the second-type underground device is used for data reception and data processing; assigning a timestamp to data to be processed that is collected by the first-type underground device, and the second-type underground device performing, on the basis of the timestamp, data synchronization on said data; and making the second-type underground device process audio data or video data in said data.
A time-sensitive networking (TSN)-based hydraulic support control apparatus, comprising: a control module, a TSN switch module and an execution module. The control module is used for sending sensing data of a hydraulic support and operation data of the control module to the TSN switch module; and the TSN switch module is used for uploading the sensing data and the operation data to a main communication link according to a corresponding time slot bandwidth, obtaining a control instruction from the main communication link, and adding a corresponding timestamp, so that the control module controls, on the basis of the control instruction and synchronization information, the execution module to drive the hydraulic support to act. According to the hydraulic support control apparatus, clock synchronization between the control apparatus and another control apparatus can be achieved, and the delay of the control apparatus is controllable, thereby ensuring control action synchronization between the control apparatus and the another control apparatus, thus improving production efficiency. Also provided is a control system of the TSN-based hydraulic support control apparatus.
Provided is a coal mine communication network system based on time-sensitive networking (TSN). The system comprises: a wired communication system, wherein a backbone network of the wired communication system is composed of a plurality of TSN network switches connected in a looped network topology, and the wired communication system is used for connecting a coal mine device as a terminal to a TSN network; and a wireless communication system, which is connected to the wired communication system, is composed of wireless communication devices compatible with a TSN protocol, and is used for connecting the coal mine device to the TSN network by means of wireless connection.
An electrohydraulic control system for a hydraulic support. The electrohydraulic control system comprises: a TSN main unit, which is used for planning a communication link bandwidth according to the type of data to be transmitted, and transmitting said data on the basis of a planned bandwidth; a TSN network switch, which is connected to the TSN main unit, wherein the TSN network switch is a master system clock and is used for outputting a time synchronization policy for each device of the system on the basis of a time synchronization protocol; a TSN signal converter, which is connected to the TSN network switch and is used for issuing time synchronization information on the basis of the time synchronization policies; and a plurality of cascaded TSN hydraulic-support controllers, which are connected to the TSN signal converter and are used for sending control signals to corresponding hydraulic supports on the basis of received data.
Provided is a hydraulic support control system, comprising hydraulic support controllers, wireless base stations, power boxes, isolation couplers, and a handheld terminal. The hydraulic support controllers are connected in series; one wireless base station is configured every N hydraulic support controllers; one power box and one isolation coupler are configured every M hydraulic support controllers; each wireless base station comprises a plurality of wireless communication modules; one wireless communication module is configured for a corresponding hydraulic support controller; the wireless communication modules are used for responding to the establishment of the connection between the handheld terminal and the hydraulic support controllers; the wireless communication modules configured for the hydraulic support controllers are converted into an activated state from a sleep state to establish wireless communication connection with the handheld terminal; and the handheld terminal is used for controlling hydraulic supports according to a hydraulic support action instruction.
The present application discloses a fully mechanized mining automation network system based on a time-sensitive network (TSN). The system comprises a main TSN switch, wherein the main TSN switch is arranged on a fully mechanized mining face. A plurality of subsystems in a fully mechanized mining automation system are respectively connected to the main TSN switch in different communication modes. The main TSN switch is used for realizing communication between the fully mechanized mining automation system and the outside, and in combination with TSN devices preset for the plurality of subsystems, realizing the communication between the plurality of subsystems.
H04L 67/12 - Protocoles spécialement adaptés aux environnements propriétaires ou de mise en réseau pour un usage spécial, p. ex. les réseaux médicaux, les réseaux de capteurs, les réseaux dans les véhicules ou les réseaux de mesure à distance
9.
METHOD AND APPARATUS FOR ACQUIRING ADVANCING DISTANCE OF WORKING FACE, AND ELECTRONIC DEVICE AND STORAGE MEDIUM
The present invention provides a method and apparatus for acquiring an advancing distance of a working face, and an electronic device and a storage medium. The method comprises: acquiring continuous multiple frames of point cloud data of a preset target in a working face; on the basis of the continuous multiple frames of point cloud data, acquiring a distance value between the preset target corresponding to each frame of point cloud data and a preset reference position; and on the basis of a difference between at least two distance values among the multiple distance values, acquiring an advancing distance value of the working face. By means of the technical solution of the present invention, the problem of low effectiveness of the related technical solution can be effectively avoided, and the application scenarios are wide.
G06T 7/521 - Récupération de la profondeur ou de la forme à partir de la télémétrie laser, p. ex. par interférométrieRécupération de la profondeur ou de la forme à partir de la projection de lumière structurée
G01S 17/86 - Combinaisons de systèmes lidar avec des systèmes autres que lidar, radar ou sonar, p. ex. avec des goniomètres
10.
CRANKSHAFT ASSEMBLY FOR PLUNGER PUMP, PLUNGER PUMP, AND PLUNGER PUMP STATION
Provided are a crankshaft assembly for a plunger pump, a plunger pump, and a plunger pump station. The crankshaft assembly comprises a crankshaft, a first gear, and a second gear. The crankshaft comprises a first connecting rod journal, a second connecting rod journal, a third connecting rod journal, a fourth connecting rod journal, a fifth connecting rod journal, a sixth connecting rod journal, a seventh connecting rod journal, a first journal, a second journal, a third journal, a fourth journal, a fifth journal, a sixth journal, a seventh journal, and an eighth journal. The first gear is arranged on the third journal, and the second gear is arranged on the sixth journal.
F04B 1/16 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs ensembles de cylindres ou de pistons
F04B 53/00 - Parties constitutives, détails ou accessoires non prévus dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
11.
METHOD FOR TRAINING COAL ROCK INTERFACE RECOGNITION MODEL, METHOD FOR CUTTING CONTROL OF SHEARER, AND INTELLIGENT CONTROL SYSTEM
A method for training a coal rock interface recognition model is performed by a cloud server. The method includes receiving a sample coal rock distribution and sample multi-modal data from an edge processor, acquiring a sample load state feature based on the sample vibration data and the sample noise data; acquiring a sample cutting feature of a coal rock interface based on the sample video data. The method further includes acquiring a sample load feature for drum cutting based on the sample current data and the sample pressure data; calling the coal rock interface recognition model, and performing a decision-level fusion based on the sample load state feature; and training the coal rock interface recognition model based on the sample predicted coal rock distribution and the sample coal rock distribution to obtain a target coal rock interface recognition model
E21C 35/00 - Détails ou accessoires de machines pratiquant des saignées ou libérant complètement la matière minérale de la veine, non prévus dans les groupes , ou
G06V 10/80 - Fusion, c.-à-d. combinaison des données de diverses sources au niveau du capteur, du prétraitement, de l’extraction des caractéristiques ou de la classification
G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux
12.
THREE-DIMENSIONAL LASER POINT CLOUD VR DISPLAY METHOD AND APPARATUS
Provided are a three-dimensional laser point cloud VR display method and apparatus, an electronic device, a non-transitory computer-readable storage medium, a computer program product, and a computer program. The three-dimensional laser point cloud VR display method comprises: acquiring a target laser point cloud, and generating a target symbol distance field model corresponding to the target laser point cloud; on the basis of the target symbol distance field model, carrying out pose solving to obtain a target pose corresponding to the target laser point cloud; and carrying out incremental reconstruction on the target symbol distance field model according to the target pose to obtain a target global symbol distance field model, and displaying an image corresponding to the target global symbol distance field model.
The present application discloses a multifunctional cable trough retaining and protecting mechanism, and a control method. The mechanism comprises a middle trough of a scraper and a cable trough provided at one side of the middle trough of the scraper. Outer side walls of two sides of the cable trough are provided with a first baffle and a second baffle, respectively. Sides of the first baffle and the second baffle facing a bottom end of the cable trough are connected by a U-shaped frame, the U-shaped frame and the cable trough being slidably connected, and an end of the middle trough of the scraper facing the cable trough being provided with a telescopic support assembly used to control the U-shaped frame to move along a vertical direction. The mechanism further comprises a camera monitoring member for real-time monitoring of a working surface of the cable trough, a ground video server being linked to the camera monitoring member by means of a working surface ring network, an automation server being electrically connected to the ground video server, a controller being electrically connected to the automation server, and the controller being electrically connected to the telescopic support assembly. The present application implements real-time monitoring and automatic shielding of the cable trough, reducing manpower input.
H02G 3/04 - Tubes ou conduits de protection, p. ex. échelles à câbles ou goulottes de câblage
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
H04N 7/18 - Systèmes de télévision en circuit fermé [CCTV], c.-à-d. systèmes dans lesquels le signal vidéo n'est pas diffusé
14.
INSPECTION METHOD AND APPARATUS BASED ON AUGMENTED REALITY (AR) DEVICE
Disclosed in the present application are an inspection method and apparatus based on an augmented reality (AR) device. The method comprises: by means of an AR device, collecting an image of an inspection point; performing image recognition on the image to obtain fault information of the inspection point; on the basis of the fault information, determining a fault level of the inspection point; and on the basis of the fault level, performing maintenance on the inspection point through an inspection object. Thereby, on the basis of fault information, fault grading can be carried out on an inspection point, which allows maintenance to be performed on the inspection point considering the fault level, improving the timeliness and flexibility of fault handling and thus enhancing the inspection effect.
A water-based electromagnetic pilot valve for mines. A valve cavity is formed in a valve body (1); a first port (11), a second port (12) and a third port (13) which are in communication with the valve cavity are formed in the valve body (1); a split valve seat (2) comprises a first end valve seat (21), a second end valve seat (22) and a guide sleeve (23); a first liquid through hole (211) is formed in the first end valve seat (21); a second liquid through hole (221) is formed in the second end valve seat (22); a third liquid through hole (231) and a fourth liquid through hole (232) are formed in the guide sleeve (23); and an opening/closing assembly (3) is suitable for opening and closing the first liquid through hole (211) and the second liquid through hole (221), such that the connection state between the first port (11) and the third port (13) is opposite to the connection state between the second port (12) and the third port (13). The valve seat of the water-based electromagnetic pilot valve for mines is composed of three parts. During processing and production, processing difficulties such as inclined holes and blind holes are avoided, thereby lowering the processing difficulty and processing cost and increasing the reliability of the pilot valve.
F16K 11/056 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets à corps de soupape en forme de sphère
F16K 17/30 - Soupapes ou clapets limiteurs de débit fonctionnant par différence de pression entre deux points de l'écoulement et agissant directement sur l'élément d'obturation dans un sens uniquement sous l'action d'un ressort
F15B 13/02 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs
A split valve seat and a valve. The split valve seat comprises an end valve seat (1), a guide sleeve (2) and a mating part (3), wherein the end valve seat (1) is provided with a first end face (11) and a second end face (12); a first liquid through hole (13) is formed in the end valve seat (1); the first liquid through hole (13) penetrates through the first end face (11) and the second end face (12); the guide sleeve (2) is provided with a third end face (21), a fourth end face (22) and a first peripheral surface (23); a second liquid through hole (24) and a third liquid through hole (25) are formed in the guide sleeve (2); the second liquid through hole (24) penetrates through the third end face (21) and the fourth end face (22), and the second liquid through hole (24) is in communication with the first liquid through hole (13); the third liquid through hole (25) penetrates through the first peripheral surface (23) and the second liquid through hole (24), such that the second liquid through hole (24) is in communication with the exterior of the guide sleeve (2); and the mating part (3) abuts against the fourth end face (22), such that the formed valve seat has a two-position two-way function or a two-position three-way function.
F16K 11/048 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets à sièges de soupape ou de clapet situés entre des corps de soupape ou de clapet mobiles
F16K 1/14 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à corps de soupape en forme de sphère
F16K 1/32 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation Détails
F16K 27/02 - Structures des logementsMatériaux utilisés à cet effet des soupapes de levage
Provided in the present application is a digital hydraulic cylinder, comprising a hydraulic cylinder, wherein the hydraulic cylinder comprises a cylinder body, a piston and a piston rod, the piston is arranged in the cylinder body and divides a cavity of the cylinder body into a first cavity and a second cavity; a reversing valve, wherein the reversing valve comprises a valve body and a valve core, the valve body is provided with a first channel and a second channel, and the valve core is movably arranged in the valve body; an electric motor, wherein an output shaft of the electric motor is connected to the valve core and can drive the valve core to rotate; a first hydraulic pipeline and a second hydraulic pipeline, wherein the first cavity and the first channel are in communication through the first hydraulic pipeline, and the second cavity and the second channel are in communication through the second hydraulic pipeline; and a feedback assembly, wherein the feedback assembly is located outside the first cavity and the second cavity, and the piston rod is connected to the valve core through the feedback assembly.
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
18.
COAL MINING MACHINE CUTTING PLANNING METHOD AND DEVICE BASED ON INSPECTION VISION PERCEPTION
A coal mining machine cutting planning method based on inspection vision perception, comprising: on the basis of a space mapping relationship between a mobile platform coordinate system and a geological coordinate system of a stope, digitally constructing a stope space and automatically detecting and recognizing a coal mining machine; perceiving and analyzing the motion state of the coal mining machine to obtain motion state information of the coal mining machine, and capturing and tracking the coal mining machine; and carrying out state perception on a target object of a coal mining machine part in a cutting space, and determining an optimal safe cutting curve on the basis of state perception data. A coal mining machine cutting planning device (300) based on inspection vision perception, comprising a space mapping module (310), a stope space digital construction module (320), a coal mining machine capturing and tracking module (330), and a cutting planning module (340). An electronic device, comprising at least one processor and a memory communicationally connected thereto, for use in executing the steps in the planning method. A non-transitory computer readable storage medium (800) storing computer instructions, for use in causing a computer to execute the steps in the planning method. By means of such configurations, for the fluctuation of a coal seam, the stope and the spatial state of operation equipment can be perceived and captured in real time by means of inspection vision, and the cutting curve can be adaptively adjusted, thereby achieving continuous operation cutting planning, and improving the automated production efficiency of the working face.
The present application relates to a video monitoring method and apparatus for a coal mine fully mechanized mining face, an electronic device, and a medium. At least one video monitoring device is installed close to an edge at any one of two sides of a top beam of at least one hydraulic support frame at every interval, a mounting frame used to affix the video monitoring device having a set upper elevation angle relative to a horizontal direction. The method comprises: acquiring the position of a coal mining machine; according to the position of the coal mining machine, determining multiple video monitoring devices to be started, and a preset point of each video monitoring device; and controlling each of the multiple video monitoring devices to rotate according to the determined preset point, so as to realize video monitoring of the coal mine fully mechanized mining face. Thus, by reasonably installing video monitoring devices, the video monitoring devices may complete intelligent video monitoring of the coal mine fully mechanized mining face in a preset point mode, according to the position of a coal mining machine.
H04N 23/695 - Commande de la direction de la caméra pour modifier le champ de vision, p. ex. par un panoramique, une inclinaison ou en fonction du suivi des objets
H04N 7/18 - Systèmes de télévision en circuit fermé [CCTV], c.-à-d. systèmes dans lesquels le signal vidéo n'est pas diffusé
20.
HYDRAULIC SUPPORT PUSHING CONTROL METHOD AND SYSTEM BASED ON INCREMENTAL DIGITAL HYDRAULIC CYLINDER
The present application relates to a hydraulic support pushing control method and system based on an incremental digital hydraulic cylinder. The method comprises: using an inspection apparatus to obtain the straightness of a fully mechanized coal mining working face and to obtain a first offset of at least one hydraulic support; converting the first offset of the at least one hydraulic support to a valve core displacement of an incremental digital hydraulic cylinder; and according to the valve core displacement, controlling the at least one hydraulic support to move to a target position. In this way, the inspection apparatus is used to determine the first offset, and a distance measurement sensor is used to determine a second offset of the movement of a single support, thereby directly controlling a motor of the incremental digital hydraulic cylinder to adjust the position of the hydraulic support, so as to ensure the straightness of the fully mechanized coal mining working face, thus ensuring the straightness of the working face.
A fully mechanized mining face hydraulic system based on an incremental digital hydraulic cylinder (130). The system comprises a group of hydraulic supports (100), wherein each hydraulic support (100) comprises a bus controller (110), a detection device (120), and at least one incremental digital hydraulic cylinder (130); the incremental digital hydraulic cylinder (130) comprises an electric motor (131), a multi-way proportional valve (132), and a hydraulic cylinder body (133); the detection device (120) is used for detecting state information of the hydraulic support (100); the bus controller (110) is used for sending a rotation control instruction to the electric motor (131) according to the state information; the electric motor (131) is used for rotating forward or reversely to a corresponding angle according to the rotation control instruction, so as to control left-hand and right-hand reversing and a change in the proportional degree of opening of the multi-way proportional valve (132); and the multi-way proportional valve (132) is used for controlling, by means of left-hand and right-hand reversing and adjusting the proportional degree of opening, the hydraulic cylinder body (133) to extend or retract by a corresponding displacement amount.
E21D 23/00 - Soutènements du toit dans les mines pour déplacement pas à pas, p. ex. en combinaison avec des dispositions pour le déplacement de convoyeurs, machines de mines ou guidages pour ceux-ci
22.
PIEZOELECTRIC ACTUATOR, CONTROL VALVE, PILOT VALVE, REVERSING VALVE AND CONTROL SYSTEM
A piezoelectric actuator (100), comprising a casing (1), a driving part (2), a piezoelectric ceramic piece (3), a cable (4) and a swing rod (5). The driving part (2) is arranged in the casing (1), and the driving part (2) can move in the length direction of the casing (1). A chamber (11) is provided in the casing (1), and the piezoelectric ceramic piece (3) is arranged in the chamber (11). One end of the cable (4) passes through the casing (1) to connect to one end of the piezoelectric ceramic piece (3), and the other end of the piezoelectric ceramic piece (3) is connected to the driving part (2). One end of the swing rod (5) is pivotally connected to the casing (1), the other end of the swing rod (5) can swing, and the swing rod (5) abuts against the driving part (2). Further disclosed are a control valve, a pilot valve, a reversing valve and a reversing valve control system.
The present application relates to the technical field of coal-mining fully-mechanized coal mining faces, and provides a measurement method, system, and apparatus for an advancing distance of a fully mechanized coal mining face, and an electronic device. The method comprises: acquiring a distance between a distance measurement substation and at least one distance measurement identification card; determining the position of the distance measurement substation according to the distance between the distance measurement substation and the at least one distance measurement identification card and the position of the at least one distance measurement identification card; determining the position of a coal mining wall according to the position of the distance measurement substation and a fixed distance between the distance measurement substation and the coal mining wall; and according to the position of an open-off cut of the fully mechanized coal mining face and the position of the coal mining wall, determining an accumulated advancing distance of the fully mechanized coal mining face from the position of the open-off cut of the fully mechanized coal mining face.
The present application relates to the technical field of sound recognition and provides a sound recognition model training method and apparatus, an electronic device, and a storage medium. The method comprises: acquiring a sound training sample and a sound recognition model to be trained; on the basis of a preset window length, processing the sound training sample to acquire the Log-Mel spectrogram of the sound training sample; and inputting the Log-Mel spectrogram into the sound recognition model for training so as to acquire a trained sound recognition model. Using time windows of different lengths to process the training sample may capture during feature extraction not only long-term steady-state features in sound signals, but also instantaneous fine signal changes, improving the accuracy of sound recognition, being suitable for different environments, and thus improving the practicability of the present solution.
G10L 15/06 - Création de gabarits de référenceEntraînement des systèmes de reconnaissance de la parole, p. ex. adaptation aux caractéristiques de la voix du locuteur
A safety valve, relating to the technical field of safety valve manufacturing. The safety valve comprises a valve cover (1) and a dustproof component (2). A first cavity (11) is formed in the valve cover (1). The valve cover (1) has an inlet and an outlet. The dustproof component (2) is arranged at the end in the first cavity (11) close to the inlet of the valve cover (1). The dustproof component (2) comprises a dustproof member (21) and a nozzle (22). The nozzle (22) is connected to the dustproof member (21), and the nozzle (22) has an open state and a closed state. In the open state, the nozzle (22) is in communication with the inlet and the outlet of the valve cover (1). In the closed state, the nozzle (22) cuts off the inlet and the outlet of the valve cover (1).
F16K 17/04 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage ouvrant sur excès de pression d'un côtéSoupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté actionnés par ressort
F16K 15/14 - Soupapes, clapets ou valves de retenue à corps de soupapes flexibles
F16K 1/32 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation Détails
A hydraulic cylinder, the hydraulic cylinder comprises a reversing valve assembly (1), a piston assembly (3), a transmission assembly (4), and a conversion assembly (2). The reversing valve assembly (1) comprises a reversing valve component (12) and a driving component (11), the driving component (11) is connected to the reversing valve component (12), the piston assembly (3) comprises a piston rod (34), the conversion assembly (2) has a power input end and a power output end, the power input end of the conversion assembly (2) is connected to the piston rod (34), a power input end of the transmission assembly (4) is connected to the power output end of the conversion assembly (2), and a power output end of the transmission assembly (4) is connected to a side of a valve core (122) away from the driving component (11).
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
F15B 13/02 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs
F15B 21/00 - Caractéristiques communes des systèmes de manœuvre utilisant des fluidesSystèmes de manœuvre à pression ou parties constitutives de ces systèmes, non couverts par l'un quelconque des autres groupes de la présente sous-classe
The present invention relates to the technical field of coal mine inspection, and in particular to a panoramic three-dimensional inspection system. The panoramic three-dimensional inspection system, comprising: a panoramic three-dimensional inspection device and a controller. The panoramic three-dimensional inspection device comprises a support shell, a pan-tilt motor, a rotating seat, a laser radar, a sliding ring, and an encoder. The controller is separately connected to the laser radar and the pan-tilt motor, and is used to control an output shaft of the pan-tilt motor and a rotating shaft of the laser radar to rotate so as to control the laser radar to perform panoramic scanning to obtain a target panoramic point cloud. According to the present disclosure in which the described solution is used, more comprehensive and three-dimensional laser point cloud information can be obtained.
The present application provides an automated coal mine working face liquid supply planning method and apparatus, an electronic device, and a medium. The method comprises: obtaining an original liquid supply curve corresponding to a working face coal mining process; obtaining from a comprehensive mining big data platform at least one type of original liquid supply process data; and according to the at least one type of original liquid supply process data, processing the original liquid supply curve to obtain a flow volume prediction curve. The present application allows for effectively improving automated coal mine working face liquid supply results, thereby improving the practicality of automated coal mine working face liquid supply.
Disclosed in the present application is an unmanned-aerial-vehicle inspection method. The unmanned-aerial-vehicle inspection method comprises the following steps: installing a robotic arm assembly in an area to be inspected, where an unmanned aerial vehicle needs to monitor and stay; acquiring a hovering instruction for the unmanned aerial vehicle regarding a desired position in said area; acquiring the real-time position of the unmanned aerial vehicle, and attitude information of same; generating a control instruction according to the hovering instruction, the real-time position and the attitude information; by means of the control instruction, making the unmanned aerial vehicle hover at the desired position, and sending to the robotic arm assembly position information of the unmanned aerial vehicle during hovering; the robotic arm assembly acquiring the hovering position of the unmanned aerial vehicle and performing a corresponding extension action to connect to the unmanned aerial vehicle, such that the unmanned aerial vehicle is hung on the robotic arm assembly; and rotors of the unmanned aerial vehicle stopping rotating and the unmanned aerial vehicle staying for monitoring.
A one-way throttle valve (21) and a hydraulic support lifting system using the one-way throttle valve (21). The one-way throttle valve (21) comprises: a valve body (211), a valve element (212), and an elastic member (213), wherein a liquid passage is provided in the valve body (211) and extends through the valve body (211) in the axial direction of the valve body (211), and an annular flange is provided in the liquid passage; the valve element (212) has an end face, and an annular face, which extends in the circumferential direction of the end face, and is provided with a flow passing hole (2122); the flow passing hole (2122) extends through the valve element (212), and the flow passing hole (2122) extends at an angle relative to the axial direction of the valve body (211); the end face is provided with a throttling hole (2121); the throttling hole (2121) extends through the valve element (212), and the throttling hole (2121) extends at an angle relative to the axial direction of the valve body (211); and the elastic member (213) acts between the valve element (212) and the valve body (211).
The present application provides an explosion-proof and intrinsically safe intelligent power supply box, comprising: a box body, which comprises an accommodation cavity, a window being provided on a surface of the box body; and an intrinsically safe power supply which is provided in the accommodation cavity, a wireless transmitter being provided on the intrinsically safe power supply, and the wireless transmitter being arranged at a position close to the window in the accommodation cavity. By providing the window, wireless signal transmission from inside the box to outside the box can be achieved.
A piston shoe assembly, and a radial piston pump driven by a polygonal hub. The piston shoe assembly comprises a piston sleeve and a shoe (5), wherein a piston (7) is provided in the piston sleeve; a first end of the shoe (5) is connected to the piston (7), and a second end of the shoe (5) is a sliding face (8) used for being in contact with a hub of a piston pump; and the sliding face (8) is provided with oil storage grooves (9).
F04B 1/053 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail avec des éléments actionnants ou actionnés aux extrémités intérieures des cylindres
Provided are a control method and apparatus for a fully mechanized coal mining surface of a coal mine, an electronic device, a non-temporary computer readable storage medium, a computer program product and a computer program. The method comprises: determining current position information of a coal mining machine; determining a target camera device according to the current position information; determining roof line information according to first image data acquired by the target camera device; determining drum position information according to second image data acquired by the target camera device, wherein the second image data is used for indicating real-time image data of a target area, and the acquisition time of the first image data is earlier than the acquisition time of the second image data; and performing coal mining operation on the target area according to the roof line information and the drum position information.
A real-scene monitoring method and apparatus (1000), which relate to the technical field of data processing. The real-scene monitoring method comprises: performing time synchronization processing on M data collection devices, and acquiring pose data of any data collection device (S201); for any data collection device, calling the data collection device to perform data collection on the current environment, so as to acquire point cloud and image data (S202); acquiring a relative coordinate conversion matrix between any candidate data collection device and a reference data collection device according to the pose data of any data collection device (S203); and acquiring panoramic point cloud data according to the relative coordinate conversion matrix and the point cloud and image data (S204). Therefore, panoramic point cloud data can be outputted in real time in a dynamically changing or complex environment, and high-precision three-dimensional reconstruction and positioning are performed on complex large-range indoor and outdoor scenes, such that the flexibility and accuracy of real-scene monitoring are improved, and the scenes are visual and can be used for intelligent analysis.
Provided are a control method and apparatus for mining height of a coal mining machine, a computer device, a computer-readable storage medium, a computer program product and a computer program. The method comprises: acquiring a mining height limit value of each coal mining section of a coal mining machine in the current coal web, and the mining height limit values of each mining section in a first preset number of historical coal webs before the current coal web; according to the corresponding mining height limit values of the same mining section in the historical coal webs, correcting the corresponding mining height limit values of the same mining section in the current coal web, so as to acquire a corresponding corrected mining height limit value of each mining section in the current coal web; performing smoothing processing on the corresponding corrected mining height limit value of each mining section in the current coal web so as to determine a mining height curve for the current coal web; and, according to the mining height curve, controlling the cutting height of a drum of the coal mining machine in the next coal web after the current coal web.
Provided are a system and a control method for unmanned mining on a fully mechanized coal mining face, an electronic device, a computer readable storage medium, a computer program product, and a computer program. The system comprises: an auxiliary decision support module used for generating a decision suggestion according to impact factor information of a mining process of a fully mechanized coal mining face on production, and sending the decision suggestion to a system analysis control module; a human-computer interaction control module used for receiving and displaying production state data of a fully mechanized coal mining face, generating adjustment data, and sending the adjustment data to the system analysis control module; a unit execution feedback module used for generating feedback data according to a device execution result, and sending the feedback data to the system analysis control module; and the system analysis control module used for summarizing and analyzing the received decision suggestion, adjustment data and feedback data to generate a control instruction, and sending the control instruction to the unit execution feedback module.
G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
37.
VIDEO ENHANCED DISPLAY METHOD, APPARATUS, AND SYSTEM FOR FULLY MECHANIZED MINING FACE, AND ELECTRONIC DEVICE
Provided are a video enhanced display method, apparatus, and system for a fully mechanized mining face, an electronic device, a computer readable storage medium, a computer program product, and a computer program. The method comprises: collecting a video surveillance image of a fully mechanized mining face; locating a target range in the video surveillance image, and generating a target range frame line and a target number corresponding to the target range frame line, wherein the target range comprises a hydraulic support range, a pedestrian channel space range corresponding to a hydraulic support, and a coal wall space range covered by the hydraulic support; and finally, superimposing the target range frame line and the target number corresponding to the target range frame line on the video surveillance image to generate a target video image, and displaying the target video image.
A driver, comprising a housing (2), a housing cover plate (13) and a connection end cover (1), wherein the housing (2) is respectively detachably connected to the housing cover plate (13) and the connection end cover (1); the housing (2) is provided with a first accommodation cavity, the housing cover plate (13) covers the first accommodation cavity, a first circuit board (11) is provided in the first accommodation cavity, and a first connector is provided on the first circuit board (11); and the connection end cover (1) is provided with a second accommodation cavity, the housing (2) covers the second accommodation cavity, a second circuit board (7) is provided in the second accommodation cavity, a second connector is provided on the second circuit board (7), and the first connector is connected to the second connector.
H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques Détails
F16K 31/06 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant
Provided in the present disclosure is a plunger pump. The plunger pump comprises a pump body, a crankshaft, and a plunger group, wherein the pump body is provided with a plurality of working cavities; the crankshaft is rotatably assembled on the pump body, the crankshaft is provided with an eccentric section, and the axis of the eccentric section and the axis of the crankshaft are arranged in parallel at an interval; and the plunger group comprises a plurality of plungers and star wheels, the plurality of plungers being arranged at intervals in a circumferential direction of the star wheels, one end of each plunger being connected to a star wheel, the other ends of the plungers being guided and assembled in the working cavities so as to adjust the volume of the working cavities, and the star wheels being rotatably assembled on the eccentric section so as to drive the plungers to slide in the working cavities when the crankshaft rotates.
F04B 1/053 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail avec des éléments actionnants ou actionnés aux extrémités intérieures des cylindres
The present disclosure provides a coal rock interface recognition model training method, and a coal shearer cutting control method and apparatus. The coal rock interface recognition model training method comprises: receiving a sample coal rock distribution and sample multi-modal data sent by an edge processor; obtaining a sample load state feature according to sample cutting rocker arm vibration data and sample cutting coal rock noise data; obtaining a sample cutting coal rock interface feature according to sample roller cutting video data; obtaining a sample roller cutting load feature according to sample cutting motor current data and sample lifting oil cylinder pressure data; calling a coal rock interface recognition model to perform decision-level fusion and generate a sample-predicted coal rock distribution; and training and updating the coal rock interface recognition model according to the sample-predicted coal rock distribution and the sample coal rock distribution. Therefore, the coal rock interface recognition model can be trained online in real time according to the multi-modal data and in combination with real-time working conditions, thereby improving the training efficiency and accuracy of the coal rock interface recognition model.
a); the liquid suction valve assembly (102) includes a liquid suction valve seat (1021), a liquid suction valve core (1022), and a first reset spring (1023); the liquid suction valve core (1022) is slidably connected to the spacer sleeve assembly (104); the first reset spring (1023) is located between the spacer sleeve assembly (104) and the liquid suction valve core (1022); and the end cover (105) is detachably connected to one end of the pump head body (101). The pump head assembly (100) is reasonable in internal structure and long in service life.
F04B 9/02 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant mécaniques
The present disclosure relates to the technical field of hydraulic control systems, and provides a multi-stage hydraulic speed regulation system and a hydraulic support. In the multi-stage hydraulic speed regulation system disclosed by embodiments of the present disclosure, a first reversing valve and a second reversing valve are controlled to be in different states so as to realize three working states of the piston rod of a hydraulic cylinder, namely differential extension, slow extension and retraction. The regulation of the multi-stage hydraulic speed regulation system is therefore realized, the control precision of the multi-stage hydraulic speed regulation system in the embodiments of the invention can be improved, and the control precision of the hydraulic support having the multi-stage hydraulic speed regulation system can be enhanced.
F15B 11/04 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie pour commander la vitesse
E21D 23/16 - Caractéristiques hydrauliques ou pneumatiques, p. ex. circuits, disposition ou adaptation de soupapes, dispositifs de mise en place ou de retrait
F16K 11/07 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des tiroirs à éléments de fermeture glissant linéairement à glissières cylindriques
A height measurement sensor. The height measurement sensor comprises a main body (1), a first data processing device (2) and a second data processing device (3). The main body (1) is used for measuring a pressure difference between two points; the first data processing device (2) corresponds to the first end of the main body (1), one of the first data processing device (2) and the first end of the main body (1) is provided with a first socket (121), the other one is provided with a first plug (211), and the first data processing device (2) is connected to the main body (1) by means of cooperation of the first plug (211) and the first socket (121). The second data processing device (3) corresponds to the second end of the main body (1), one of the second data processing device (3) and the second end of the main body (1) is provided with a second socket, the other one is provided with a second plug (131), and the second data processing device (3) is connected to the main body (1) by means of cooperation of the second plug (131) and the second socket. The height measurement sensor is of a split structure, thus disassembly and assembly between two adjacent parts are convenient. When one part has faults, the part can be independently disassembled, and only components of the part are replaced, so that unnecessary loss of the components is avoided, waste of resources is reduced, and the replacement cost is reduced.
G01B 13/06 - Dispositions pour la mesure caractérisées par l'utilisation de fluides pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
G01B 13/02 - Dispositions pour la mesure caractérisées par l'utilisation de fluides pour mesurer la longueur, la largeur ou l'épaisseur
A plunger pump includes a pump head assembly, which includes: a pump head body, a chamber in the pump head body; a liquid suction valve assembly, a liquid discharge valve assembly, and a separation sleeve for separating the liquid suction valve assembly from the liquid discharge valve assembly that are located in the chamber. The chamber includes: a liquid suction valve base mounting portion for mounting the liquid suction valve assembly, a separation sleeve mounting portion for mounting the separation sleeve, a liquid discharge valve base mounting portion for mounting the liquid discharge valve assembly, and a liquid suction chamber on a lower side of the liquid suction valve base mounting portion and in communication with an emulsion supply device by a pipeline.
F04B 9/04 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant mécaniques constitués par des cames, des excentriques ou des mécanismes à téton et rainure guide
45.
MINING THREE-DIMENSIONAL COLOR POINT CLOUD RECONSTRUCTION SYSTEM AND METHOD
A mining three-dimensional color point cloud reconstruction system and method. The system comprises: a first multi-line laser radar (1), a second multi-line laser radar (2), a laser radar support (3), a panoramic camera (4), an inertial navigation device (6), and a data processing computer (7), wherein the first multi-line laser radar (1) is provided on the laser radar support (3) and is in the horizontal direction; the second multi-line laser radar (2) is provided on the laser radar support (3), and the position of the second multi-line laser radar and the first multi-line laser radar (1) are of a right-angle complementary structure; the panoramic camera (4) is provided above the first multi-line laser radar (1); the inertial navigation device (6) is provided below the laser radar support (3); and the data processing computer (7) is provided below the laser radar support (3). RGB information is added for a point cloud while the point cloud is constructed, and the problem of being difficult in performing object recognition on the coal mine working face is solved.
An integrated pump station (100), comprising: a mounting frame (1), a pump body (2), and an electric drive device. The pump body (2) is arranged on the mounting frame (1); the electric drive device comprises a housing body (3), a motor, a frequency converter and a controller; the housing body (3) is arranged on the mounting frame (1); the motor, the frequency converter and the controller are arranged in the housing body (3), the motor being connected to the pump body (2); the motor is connected to the frequency converter by means of an electric wire, the frequency converter is connected to the controller by means of an electric wire, and a water cooling pipeline of the motor, a water cooling pipeline of the frequency converter and an oil cooler (24) of the pump body (2) sequentially communicate with one another.
F04B 53/00 - Parties constitutives, détails ou accessoires non prévus dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
F04B 53/08 - RefroidissementChauffagePrévention du gel
F04B 53/16 - Carcasses d'enveloppeCylindresChemises de cylindre ou culassesConnexions des tubulures pour fluide
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
47.
INTELLIGENT CONTROL SYSTEM AND METHOD FOR FULLY MECHANIZED COAL MINING WORKING FACE
Provided in the present disclosure are an intelligent control system and method for a fully mechanized coal mining working face. The system comprises: at least one support; an intelligent control apparatus, which is arranged on the support; a first artificial intelligence (AI) chip module, which is integrated in the intelligent control apparatus; and a first image collection apparatus, which is connected to the first AI chip module. The first image collection apparatus acquires a first video image within a first preset range in real time, and sends the first video image to the first AI chip module; the first AI chip module performs recognition on the first video image in real time according to a pre-trained deep learning model, and sends a first recognition result to the intelligent control apparatus; and according to the first recognition result, the intelligent control apparatus controls the support to execute a corresponding action. Therefore, in view of the actual working condition of a working face, a corresponding adjustment can be automatically performed on the working state of a hydraulic support device on site, the problems of the real-time performance of control, full view at all angles, etc. are solved, and the workload of an operator observing a video image is also alleviated; and the present disclosure has high safety and high efficiency.
A control method and device of a multi-unmanned aerial vehicle integrated system. The control method of a multi-unmanned aerial vehicle integrated system comprises: (S101) acquiring an externally input control instruction, the control instruction comprising an expected position and an expected attitude; (S102) according to the expected position and the expected attitude, calculating an optimal control allocation matrix on the basis of an optimal control theory; and (S103) calculating an expected optimal rotation speed of each motor in the integrated system according to the optimal control allocation matrix.
A fully mechanized mining control system (1000), comprising a hydraulic support control system (100), an integrated liquid supply system (200), a fully mechanized mining automation system (300), and a centralized monitoring control system (400), where the centralized monitoring control system (400) is respectively connected to the hydraulic support control system (100), the integrated liquid supply system (200) and the fully mechanized mining automation system (1000). The fully mechanized coal mining automation system (1000) is respectively connected to the hydraulic support control system (100) and the integrated liquid supply system (200). The fully mechanized coal mining control system (1000) is highly integrated, enables the integrated operation of systems, and has stable data transmission and low latency.
G05B 19/418 - Commande totale d'usine, c.-à-d. commande centralisée de plusieurs machines, p. ex. commande numérique directe ou distribuée [DNC], systèmes d'ateliers flexibles [FMS], systèmes de fabrication intégrés [IMS], productique [CIM]
E21D 23/00 - Soutènements du toit dans les mines pour déplacement pas à pas, p. ex. en combinaison avec des dispositions pour le déplacement de convoyeurs, machines de mines ou guidages pour ceux-ci
50.
HYDRAULIC SUPPORT CONTROLLER AND HYDRAULIC SUPPORT CONTROL SYSTEM
The present invention provides a hydraulic support controller and a hydraulic support control system. The hydraulic support controller comprises a bus communication unit, a network exchange unit, and a control assembly; the bus communication unit and the network exchange unit are respectively connected to the control assembly; the control assembly is used for obtaining a control instruction of a hydraulic support and related data of the hydraulic support and respectively sending the control instruction and the related data to the bus communication unit and the network exchange unit; and the network exchange unit and the bus communication unit are used for sending the control instruction and the related data to the next stage of a hydraulic support controller, fully-mechanized coal mining automation system, or centralized monitoring control system. According to the hydraulic support controller of embodiments of the present invention, the integration level is high, and the transmission efficiency and synchronization of instructions and data can be effectively improved by means of the bus communication unit and the network exchange unit, thereby reducing the transmission time delay.
Disclosed are an emulsion pump hydraulic end, and an emulsion pump. An emulsion pump hydraulic end (120) comprises: a valve body (10), the valve body (10) having multiple valve chambers, the valve chambers comprising a first mounting hole (101), a plunger chamber (102), a second mounting hole (103), and a third mounting hole (104) in communication in sequence along a height direction of the valve body (10), apertures of the first mounting hole (101), the second mounting hole (103), and the third mounting hole (104) increasing in sequence. The emulsion pump hydraulic end is convenient to disassemble and assemble, maintenance is simple, maintenance time and costs are reduced, and damage to the valve body can be reduced.
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
An alarm control method and apparatus for an acousto-optic alarm, and an electronic device. The alarm control method for the acousto-optic alarm comprises: acquiring a first control signal (S101); and controlling, according to the first control signal, a plurality of cascaded acousto-optic alarms for acousto-optic warning (S102), wherein an output control signal of a previous-stage acousto-optic alarm in the plurality of cascaded acousto-optic alarms is used as an input control signal of a next-stage acousto-optic alarm. The plurality of acousto-optic alarms are cascaded, such that a control signal is sent once, and the plurality of acousto-optic alarms can obtain corresponding control signals, thereby reducing the complexity and improving the acousto-optic alarm effect.
G08B 7/06 - Systèmes de signalisation selon plus d'un des groupes Systèmes d'appel de personnes selon plus d'un des groupes utilisant une transmission électrique
A hydraulic motor, comprising a housing (5) and an output shaft (1). The output shaft (1) is sequentially sleeved with a front valve plate (6), a front compensation plate (7), a planetary gear mechanism, a rear compensation plate (12), and a rear valve plate (13). The front valve plate (6), the front compensation plate (7), the planetary gear mechanism, the rear compensation plate (12), and the rear valve plate (13) are all located in the housing (5). The planetary gear mechanism comprises a central gear (11), a planetary gear (10), and an inner gear ring (9), the central gear (11) is fixedly connected to the output shaft (1), the planetary gear (10) is engaged with the central gear (11), and the inner gear ring (9) is fixed to the housing (5) and engaged with the planetary gear (10). The front valve plate (6) is pressed on the front compensation plate (7), the front compensation plate (7) is pressed on the front end surface of the planetary gear mechanism, the rear compensation plate (12) is pressed on the rear end surface of the planetary gear mechanism, and the rear valve plate (13) is pressed on the rear compensation plate (12). A plurality of valve holes (20) are provided on each of the front valve plate (6) and the rear valve plate (13), and a plurality of flow passing holes (21) are provided on each of the front compensation plate (7) and the rear compensation plate (12). The hydraulic motor has the advantage of high working efficiency.
F03C 2/08 - Moteurs à piston rotatif du type à engrènement extérieur, c.-à-d. avec un engagement des organes coopérants semblable à celui d'engrenages dentés
F15B 15/08 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur
A plunger pump, comprising a box body (1), a crankshaft (2), a driving shaft (3) and a plurality of connecting rods (4), wherein a sliding groove (11) is provided in the box body (1); a chamber (12) is provided in the box body (1); the chamber (12) comprises a first chamber (121) and a second chamber (122); the crankshaft (2) is arranged on the box body (1) in a rotatably penetrating manner, and the crankshaft (2) is located in the first chamber (121); a plurality of first gears (21) are arranged on the crankshaft (2); the driving shaft (3) is arranged on the box body (1) in a rotatably penetrating manner, and the driving shaft (3) is located in the second chamber (122); a plurality of second gears (31) are arranged on the driving shaft (3); the plurality of second gears (31) mesh with the plurality of first gears (21) in one-to-one correspondence; one end of each connecting rod (4) is rotatably connected to the crankshaft (2), and the other end of the connecting rod (4) is provided with a slider (41); the slider (41) is fitted in the sliding groove (11); and the connecting rods (4) can drive the sliders (41) to reciprocate in the sliding groove (11). The plunger pump of the structure has the features of having a simple structure, having a large flow, and being safe and reliable.
F04B 53/16 - Carcasses d'enveloppeCylindresChemises de cylindre ou culassesConnexions des tubulures pour fluide
F04B 53/00 - Parties constitutives, détails ou accessoires non prévus dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
A driving device (100) and an inspection device (200). The driving device (100) comprises a chassis (3), a power assembly (4), a first driving wheel (51), a second driving wheel (52), and an elastic member (6); the power assembly (4) comprises a first motor (41), a second motor (42), a first rotating shaft (43), and a second rotating shaft (44); the first motor (41) and the second motor (42) are both disposed below the chassis (3); the upper end of the first rotating shaft (43) is connected to the first motor (41) so that the first motor (41) drives the first rotating shaft (43) to rotate; the upper end of the second rotating shaft (44) is connected to the second motor (42) so that the second motor (42) drives the second rotating shaft (44) to rotate; the first driving wheel (51) is connected to the lower end of the first rotating shaft (43); the second driving wheel (52) is connected to the lower end of the second rotating shaft (44); the elastic member (6) is disposed on the chassis (3), and the elastic member (6) has one end connected to the first rotating shaft (43) and the other end connected to the second rotating shaft (44). The driving device (100) can travel on a horizontally laid track of a fully mechanized mining face, such that unmanned inspection is achieved.
A positioning method, positioning assemblies (400) and a positioning system (500). The positioning method comprises: acquiring first global coordinates of a target reference point set (522) of a target master positioning member (5121) in a currently polled target positioning assembly (512); acquiring first local coordinates of the target reference point set (522), which are collected by the target master positioning member (5121) (S102); on the basis of the first global coordinates and the first local coordinates, acquiring a first conversion matrix from a local coordinate system (301) of the target master positioning member (5121) to a global coordinate system (300) (S103); and acquiring the local coordinates of each object within the field of view of observation of the target master positioning member (5121), converting the local coordinates of each object on the basis of the first conversion matrix, so as to obtain the global coordinates of each object, continuing to poll the next positioning assembly (400) until the last positioning assembly (400) has been polled, and acquiring the global coordinates of each object in an environment to be positioned (S104). By means of the positioning method, the positioning assemblies (400) and the positioning system (500), positioning information in an entire three-dimensional space can be acquired by means of positioning and transmission, thereby completing precise positioning.
An emulsion plunger pump and a pump head assembly (100) thereof. The pump head assembly (100) comprises a pump head body (101), a liquid suction valve assembly (102), a liquid discharge valve assembly (103), a spacer sleeve assembly (104), and an end cover (105); the pump head body (101) has a hollow chamber (101a); the liquid suction valve assembly (102), the spacer sleeve assembly (104), and the liquid discharge valve assembly (103) are sequentially mounted in the hollow chamber (101a); the liquid suction valve assembly (102) comprises a liquid suction valve seat (1021), a liquid suction valve core (1022), and a first reset spring (1023); the liquid suction valve core (1022) is slidably connected to the spacer sleeve assembly (104); the first reset spring (1023) is located between the spacer sleeve assembly (104) and the liquid suction valve core (1022); and the end cover (105) is detachably connected to one end of the pump head body (101). The pump head assembly (100) is reasonable in internal structure and long in service life.
F04B 53/00 - Parties constitutives, détails ou accessoires non prévus dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
Provided by the present invention are a positioning method and positioning system for a fully mechanized mining face, wherein the positioning method comprises: acquiring absolute coordinates of a target image in an absolute coordinate system; if a depth camera device (200) collects a target image of one group of targets (100), then determining camera coordinates of the target image in a coordinate system of the depth camera device (200); determining absolute coordinates of the depth camera device (200) according to the absolute coordinates of the target image and the camera coordinates; and if the depth camera device (200) does not collect the target image, then controlling a tracking camera device (300) to turn on, and according to a conversion matrix between the coordinate system of the depth camera device (200) and the absolute coordinate system and a conversion matrix between a coordinate system of the tracking camera device (300) and the coordinate system of the depth camera device (200) at the time when the tracking camera device (300) is turned on, obtaining absolute coordinates of the tracking camera device (300) relative to the absolute coordinate system. The present invention solves the problem in the prior art in which continuous high-precision three-dimensional positioning coordinates of a target object cannot be obtained when there is no GPS signal.
G01B 11/00 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques
G01C 21/16 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime en intégrant l'accélération ou la vitesse, c.-à-d. navigation par inertie
The present application discloses a communication system for a mining robot. Said system comprises: a robot body, a controller and a communication assembly, wherein the controller is connected to the communication assembly, and the communication assembly comprises N wireless communication modules; i wireless communication modules, configured to transmit inspection frequency information and first-type state information to a mining control center; and N-i wireless communication modules, configured to transmit second-type state information to the mining control center, receive control information sent by the mining control center, and feed back, to the mining control center, response information corresponding to the control information; wherein the controller is configured to receive the control information from the N-i wireless communication modules, and control the robot body to execute actions matching the control information. Said system performs information reception and transmission in parallel by means of multiple channels, avoiding being stuck and jammed in an operation process of a mining robot due to information transmission delay, ensuring reliability in a communication control process, and increasing the operation efficiency of the mining robot.
H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
G07C 1/20 - Contrôle de rondes tenues à un horaire, p. ex. de gardien
A plunger pump, comprising a pump head assembly (100), which comprises: a pump head body (101), a chamber being provided in the pump head body (101); a liquid suction valve assembly (102), a liquid discharge valve assembly (103), and a separation sleeve (104) for separating the liquid suction valve assembly (102) from the liquid discharge valve assembly (103) that are located in the chamber; the chamber comprises: a liquid suction valve base mounting portion (1012) for mounting the liquid suction valve assembly (102), a separation sleeve mounting portion (1013) for mounting the separation sleeve (104), a liquid discharge valve base mounting portion (1014) for mounting the liquid discharge valve assembly (103), and a liquid suction chamber (1011) located on a lower side of the liquid suction valve base mounting portion (1012); the liquid suction chamber (1011) is in communication with an emulsion supply device by means of a pipeline, the transition between the liquid discharge valve base mounting portion (1014) and the separation sleeve mounting portion (1013) is achieved by means of a stepped surface, the pore diameter of the liquid discharge valve base mounting portion (1014) is larger than that of the separation sleeve mounting portion (1013), and the pore diameter of the separation sleeve mounting portion (1013) is larger than or equal to that of the liquid suction valve base mounting portion (1012). Moreover, a pump station using such a plunger pump, the plunger pump is easy to disassemble and assemble and maintain.
F04B 53/22 - Dispositions pour l'assemblage ou le démontage rapide
F04B 1/16 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs ensembles de cylindres ou de pistons
An emulsion plunger pump, comprising: a pump head assembly (100). The pump head assembly (100) comprises: a pump head body (101) and a liquid suction valve assembly (102) located in the pump head body (101), a liquid discharge valve assembly (103), and a spacing sleeve (104) for isolating the liquid suction valve assembly (102) from the liquid discharge valve assembly (103). The pump head body (101) comprises a liquid suction valve seat mounting portion (1012) for mounting the liquid suction valve assembly (102), a spacing sleeve mounting portion (1013) for mounting the spacing sleeve (104), and a liquid discharge valve seat mounting portion (1014) for mounting the liquid discharge valve assembly (103); the liquid discharge valve seat mounting portion (1014) and the spacing sleeve mounting portion (1013) are transitioned by means of a stepped surface; the spacing sleeve mounting portion (1013) and the liquid suction valve seat mounting portion (1012) are transitioned by means of a stepped surface; and a hole diameter of the liquid discharge valve seat mounting portion (1014) is larger than that of the spacing sleeve mounting portion (1013), and the hole diameter of the spacing sleeve mounting portion (1013) is larger than that of the liquid suction valve seat mounting portion (1012). This plunger pump facilitates disassembling/assembling and maintenance.
F04B 53/22 - Dispositions pour l'assemblage ou le démontage rapide
F04B 1/16 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs ensembles de cylindres ou de pistons
62.
SYSTEM AND METHOD FOR CONSTRUCTING FULLY MECHANIZED COAL MINING FACE DIGITAL MINING MODEL
A system and method for constructing a fully mechanized coal mining face digital mining model. The system comprises: a summary three-dimensional model building module (101), configured to construct a preliminary three-dimensional model of coal seam geographic information of a working face; an inspection assembly (102), configured to obtain three-dimensional space information of the working face and a top plate and a bottom plate of the working face; a mobile device positioning module (103), configured to obtain spatial location coordinates of a mobile device in the working face in the preliminary three-dimensional model; a fully mechanized coal mining device positioning module (104), configured to obtain spatial location coordinates of a fully mechanized coal mining device in the working face in the preliminary three-dimensional model; a sensor module (105), configured to detect the working state of the mobile device or the fully mechanized coal mining device; and a model construction module (106), configured to fuse the data to obtain the fully mechanized coal mining face digital mining model. By means of the system, the physical relation between the mobile device in the working face and the working face and the physical relation between the fully mechanized coal mining device at the fixed position and the working face can be obtained, a fully mechanized coal mining face digital mining model is established, and the standard and basis for intelligent control over the fully mechanized coal mining device and the mobile device are provided.
An aqueous medium guarantee system (200) for a coal face. An aqueous medium is used as a working medium. The system comprises: a working medium use mechanism (209); a working medium storage mechanism (205), the working medium storage mechanism (205) being communicated with the working medium use mechanism (209), so as to supply the working medium to the working medium use mechanism (209); and a first monitoring mechanism (206), the first monitoring mechanism (206) being communicated between the working medium storage mechanism (205) and the working medium use mechanism (209), so as to detect the quality of the working medium flowing from the working medium storage mechanism (205) to the working medium use mechanism (209), and when the first monitoring mechanism (206) detects that the quality of the working medium is substandard, supply of the working medium from the working medium storage mechanism (205) to the working medium use mechanism (209) being stopped. The system facilitates reduction of the maintenance cost in a mining operation process.
E21D 23/16 - Caractéristiques hydrauliques ou pneumatiques, p. ex. circuits, disposition ou adaptation de soupapes, dispositifs de mise en place ou de retrait
Disclosed is a rapid support moving system for an aqueous medium hydraulic support, the system comprising: an integrated liquid supply subsystem; a hydraulic support subsystem, which is connected to the integrated liquid supply subsystem; a support control subsystem, which is used for controlling the hydraulic support subsystem; and an association control subsystem, which is used for controlling linkage between the integrated liquid supply subsystem and the hydraulic support subsystem, such that the hydraulic support subsystem can realize rapid support moving. A working medium therefor is an aqueous medium. In the rapid support moving system for an aqueous medium hydraulic support, an aqueous medium is used as a working medium, and rapid movement and intelligent linkage control of the hydraulic support are achieved.
E21D 23/18 - Caractéristiques hydrauliques ou pneumatiques, p. ex. circuits, disposition ou adaptation de soupapes, dispositifs de mise en place ou de retrait des mécanismes d'avance
E21D 23/16 - Caractéristiques hydrauliques ou pneumatiques, p. ex. circuits, disposition ou adaptation de soupapes, dispositifs de mise en place ou de retrait
C02F 9/02 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout comportant une étape de séparation
C02F 9/04 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout une étape au moins étant un traitement chimique
65.
TRANSPORTATION DEVICE FOR INTEGRATED LIQUID SUPPLY SYSTEM, CONTROL SYSTEM THEREOF, AND INTEGRATED LIQUID SUPPLY APPARATUS
Disclosed are a transportation device for an integrated liquid supply system, a control system thereof, and an integrated liquid supply apparatus. The transportation device comprises a plurality of sequentially connected flatbed truck assemblies (101). Each of the flatbed truck assemblies comprises a truck body (201); a medium conveying path, having a first end connected to a medium outlet of the integrated liquid supply system via a valve assembly (502) and a second end connected to a medium converging point (304); a reversing valve (206), having a liquid inlet end connected to the medium converging point; a hydraulic motor (202), mounted at a designated position on the truck body, having a first end and a second end respectively connected to a first end and a second end of the reversing valve, wherein the hydraulic motor is capable of adjusting the rotation direction and rotation speed of a drive output shaft thereof according to a flow direction of the medium and an amount of flowing medium; a transmission mechanism, arranged at the bottom portion of the truck body and comprising a driving wheel (203), the driving wheel having a rotation shaft connected to the drive output shaft of the hydraulic motor, such that the driving wheel is driven by the drive output shaft to either rotate or stop, and in turn causes the flatbed truck assembly to move or stop. The transportation device improves the safety and stability of the integrated liquid supply system during transportation.
A hydraulic control one-way valve, comprising a threaded sleeve (1), a valve rod (2), a valve seat (4), a valve element (3), a fastening spring (6), and a control piston (7), wherein the threaded sleeve (1) is provided with a first containing cavity (11) and a second containing cavity that are in communication with each other, a limiting face (13) is defined at the junction between the first containing cavity (11) and the second containing cavity, the outer wall of the threaded sleeve (1) is provided with a flowing-out hole (14), the valve rod (2) is provided with a communication hole (21) penetrating the valve rod (2) in the axial direction, the valve rod (2) sequentially comprises a sliding section (22), a buffering section (23), and an abutting section (24) in the axial direction, the sliding section (22) slides in the first containing cavity (11) in a sealed manner, the valve seat (4) is fixed in the second containing cavity, the valve element (3) is fixedly sheathed in the buffering section (23), the valve element (3) abuts against the valve seat (4) in a sealed manner, the buffering section (23) is sheathed with the fastening spring (6), a clamping hole (72) is provided in the control piston (7), a throttling hole (71) is further provided in the outer side face, in the axial direction, of the control piston (7), and the throttling hole (71), the clamping hole (72) and the communication hole (21) are in communication. According to the hydraulic control one-way valve, on the basis of relieving unloading impact, the sealing effect is guaranteed, the structure of the hydraulic control one-way valve is optimized, difficulties of maintenance are reduced, and safety is improved.
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