546 results about "Clutch control" patented technology

The invention discloses a hybrid crawler tractor for hills and mountains and a control method. The hybrid crawler tractor comprises a power system, a transmission system, an energy storage system, a driving system and a control system, the power system comprises an engine, a generator and a clutch; the transmission system comprises a mechanical coupling device, a gearbox, a power output shaft and the like; the energy storage system comprises a photovoltaic power generation panel and an energy storage device; the driving system comprises a driving system input shaft, left and right traction motors, left and right planet rows, driving wheels and the like; the control system comprises a whole vehicle controller, an energy storage device controller, a motor controller, an engine controller, a vehicle information sensor, a clutch control unit, a brake control unit and the like. According to the crawler tractor, a double-engine and motor mixed connection double-power flow structure is adopted, operation and running under various complex working conditions in hills and mountains are met, rich solar resources in the region are fully utilized, the advantages of a traditional crawler tractor and a new energy tractor are considered, and long-time operation in busy farming seasons is guaranteed.

The invention relates to the technical field of soil sampling, in particular to a sediment sampler for ocean survey. The bottom end of the sampling tube is a sampling opening, and grips are arranged on two sides of the top end of the sampling tube; a plugging mechanism is rotationally arranged at the bottom end of the sampling tube, and an impacted part is arranged at the top end; the plugging mechanism is used for plugging the sampling opening in a rotating manner; the hit part comprises a top plate fixed at the top end of the sampling pipe and a sliding rod located above the top plate, and a transmission part is arranged between the sliding rod and the plugging mechanism. According to the sediment sampler for ocean survey, the downward moving depth of the sampling pipe is sensed through the clutch control assembly, so that after the sampling pipe moves downwards to the designated depth, the clutch control assembly changes the non-sliding connection state between the hit plate and the top plate into the sliding connection state through the counter-acting force of the ground; the force of knocking the hit plate by the worker next time is transmitted to the blocking mechanism, so that the sampling opening is blocked by the blocking mechanism by virtue of the knocking force.

The invention discloses a compact-structure transmission which comprises a gearbox body, a torque converter is mounted on the outer side of the gearbox body, a turbine shaft of the torque converter is connected with a clutch shaft on the gearbox body, and the clutch shaft, a first idler shaft, a second idler shaft, a front axle gear shifting output shaft and a rear axle output shaft are arranged in the gearbox body; the clutch shaft is movably connected with a first gear and a second gear through bearings, a third gear and a fourth gear are fixed or formed on the first idler shaft, and a fifth gear, a sixth gear, a seventh gear and an eighth gear are fixed or formed on the second idler shaft. The front axle gear shifting output shaft is movably connected with a ninth gear, a tenth gear, an eleventh gear and a twelfth gear; a manual control mechanical gear shifting structure and a wet clutch control reversing structure are adopted, multi-gear advancing and retreating are achieved, the size is small, and occupied space is small.

The invention discloses a centralized clutch control method for an arrayed wave energy conversion device. The centralized clutch control method comprises the steps that numerical modeling and hydrodynamic analysis are conducted on the arrayed wave energy conversion device; establishing a time domain motion equation of the array wave energy conversion device; a state-space equation of the arrayed wave energy conversion device is established, the state-space equation is used for replacing a convolution term of a time domain motion equation, the motion state of the arrayed wave energy conversion device is obtained through calculation, and finally centralized clutch control is carried out on the arrayed wave energy conversion device to capture wave energy to the maximum extent. According to the method, the hydrodynamic interference effect between the wave energy conversion units in the array is fully considered, the overall energy capture efficiency of the array type wave energy conversion device is taken as an optimization target, the optimal global control command is solved, the movement of each wave energy conversion unit is cooperatively adjusted, and the method has a remarkable advantage in the aspect of energy capture efficiency and is suitable for large-scale popularization and application. And the overall energy absorption capacity of the wave energy conversion device is effectively improved.

The invention relates to an ultrasonic catheter driving device and an ultrasonic imaging device.The driving device comprises a base, a first driving mechanism and a first transmission mechanism, the first driving mechanism and the first transmission mechanism are arranged on the base, and the first driving mechanism is used for providing power for the first transmission mechanism; the first transmission mechanism comprises a first transmission assembly, a second transmission assembly and a clutch control assembly, the first transmission assembly abuts against the second transmission assembly, and the clutch control assembly is arranged on the first transmission assembly and used for driving the first transmission assembly to move linearly. And the first transmission assembly and the second transmission assembly are separated from each other or abut against each other. The device is simple in structure, can realize switching between automatic control and manual control in the linear motion process of the ultrasonic catheter, and is direct in response and simple and reliable in structure.

A bulldozer includes a control unit for controlling left and right steering clutches and left and right steering brakes, thereby executing a turning control of the vehicle. The control unit switches between a clutch control and a brake control on the basis of a differential between an actual turning radius and a target turning radius.

The invention belongs to the technical field of robots, and relates to a single-motor transverse walking exoskeleton based on a gear transmission system, the single-motor transverse walking exoskeleton comprises a waist assembly, an electric control assembly, a swing assembly and a thigh binding assembly, the waist assembly is used for being bound to the waist of a wearer; the electric control assembly is mounted on the waist assembly, comprises a motor, a synchronous belt, a synchronous wheel, a clutch and a gear set, and is used for providing power; the swing assembly is connected with the electric control assembly and used for driving the legs of the wearer to swing transversely. The thigh binding assembly is connected with the swing assembly and used for being bound to the leg of a wearer. The motor drives the synchronous wheels on the two sides through the synchronous belt, transmission of the gear set is controlled through the clutch, and transverse walking assistance or resistance control over the legs on the two sides through the single motor is achieved. According to the single-motor transverse walking exoskeleton based on the gear transmission system, transverse walking assistance which is light in weight, low in cost and high in controllability is achieved through the design of combination of the single motor, the double clutches and the gears.

The utility model relates to a clutch control device which comprises a clutch execution ejector rod connected with a clutch and used for driving the clutch to be separated or combined. The automatic driving module comprises a sensor unit, a control unit and an execution unit, the driving motors comprise the first driving motor and the second driving motor, and output shafts of the first driving motor and the second driving motor are connected to the transmission assembly; the first driving motor and the second driving motor can synchronously and independently drive the transmission assembly. According to the scheme, a double-motor driving structure is used, the two motors can synchronously and independently drive the transmission assembly, and under the automatic control mode, even if one motor breaks down, the other motor can still guarantee normal work of the clutch control device.

The invention belongs to the technical field of laundry equipment, and discloses a speed reduction clutch device of a dual-power washing machine, the washing machine and a control method. The brake wheel can rotate in two directions and is fixedly connected with an input shaft sleeve arranged on the input shaft in a sleeving manner; the clutch sleeve is arranged on the input shaft sleeve in a sleeving mode, can slide in the axial direction of the input shaft sleeve in a reciprocating mode and is meshed with or separated from the input shaft gear; the impeller shaft is sleeved with the dewatering shaft; the gear mechanism is arranged in the brake wheel and is in transmission connection with the input shaft, the impeller shaft and the dewatering shaft respectively; the brake wheel and the dewatering shaft can rotate relatively; the speed reduction clutch device further comprises a locking mechanism, a matching structure is arranged on the brake wheel, and the locking mechanism is matched with the matching structure in a limiting mode to lock the brake wheel. Clutch control and brake control of the speed reduction clutch device are mutually independent, and conversion of washing and dewatering working conditions is more stable and reliable.

The invention relates to the technical field of underwater bionic robots, and discloses an underwater bionic robot which comprises a supporting bottom plate, supporting stand columns are arranged at the four corners of the top of the supporting bottom plate, and a supporting top seat is jointly supported by the tops of the four sets of supporting stand columns; supporting mechanisms are arranged between the two sides of the supporting top base and the outer sides of the two adjacent sets of supporting stand columns. According to the underwater bionic robot, the lifting stand column moves up and down, then the soft bottom plate and the supporting disc are driven to move downwards, the soft bottom plate expands and moves towards the outer side of the supporting disc, and therefore the supporting range of the bottom of the supporting disc is widened, and the supporting disc and the soft bottom plate form a supporting state for the whole supporting bottom plate; and a clutch control unit is matched to independently control a transverse threaded rod, so that the vertical displacement distance of a single set of lifting stand columns is independently controlled, the problem that sludge at the bottoms of different water bodies is uneven is solved, and then the adaptability of the device is improved.

The invention discloses a clutch torque transmission characteristic dynamic test method, and relates to the field of clutch control, and the method comprises the steps: building a test bench, and separating a clutch, the transmission is put into a direct gear; presetting working condition parameters, wherein the working condition parameters comprise an output dynamometer target rotating speed N, an input dynamometer target rotating speed N and a clutch actuator target initial position P; obtaining a preset target torque loading strategy; according to the preset target torque loading strategy, the current position of a clutch actuator is controlled, a clutch friction pair is made to move relatively, and meanwhile test data are collected; acquiring a preset temperature threshold value; according to the test data, whether the clutch reaches a preset temperature threshold value or not is judged; if not, continuing to execute the preset target torque loading strategy; if yes, acquiring a target test position, and generating test data of the target test position; and preprocessing the test data according to the target test position test data, and generating an all-position test result.

The invention provides a method and a device for determining a joint point of a hydraulic clutch, a vehicle, equipment and a medium, and relates to the technical field of clutch control. The preset change trend is used for representing a corresponding pressure value change trend when the pressure value is transited from a relatively stable rising rate state to a continuously increasing rising rate state in the oil filling process, so that an inflection point for converting the pressure value from stable rising to rapid pressurization in the whole oil filling and pressure building process is determined; the inflection point can be regarded as a point where pressure in a hydraulic loop tends to rise rapidly under the influence of resistance of the driving end of the hydraulic clutch when the hydraulic clutch is combined, and a pressure value corresponding to the point can be regarded as a pressure value of a clutch combination point. Through the mode, high-voltage equipment such as a motor / an engine does not need to be started, operation can be carried out in a low-voltage state, influence factors are reduced, and the stability and accuracy of self-learning are guaranteed.

The embodiment of the invention relates to a special method or equipment for well drilling, in particular to an integrated control device for a drilling machine. The device comprises a workbench, a motor, a main clutch control module, a gearbox control module, a winch control module, a power head control module, a parameter display screen module, a winch, a lifting oil cylinder, a brake oil cylinder, an emergency brake oil cylinder, a power head clutch, an arc gear box, a feeding oil cylinder, a transmission shaft assembly and a power head chuck. According to the control device, the main clutch control module, the gearbox control module, the winch control module, the power head control module, the parameter display screen module and other function control modules of the drilling machine are integrated on the workbench, and centralized operation of the drilling machine can be achieved.

The invention relates to an AMT (Automated Mechanical Transmission), in particular to an AMT system and a control method thereof, which are used for solving the problems that the existing AMT system has certain defects in the aspects of clutch control, accurate control in a gear shifting process, stability of a self-locking device and comprehensive application of a sensor, so that the gear shifting precision, the response speed and the stability are insufficient. According to the AMT system, the integrated gear selecting and shifting executing mechanism is adopted, and compared with an externally-hung control system, the integrated gear selecting and shifting executing mechanism can improve the gear taking-off and gear shifting response speed of the system, reduce electric control wire harnesses and gas circuit arrangement and greatly reduce the system failure rate.

The invention discloses a control method and device for a low-temperature clutch of an electric drive gearbox of engineering machinery and a storage medium, and belongs to the technical field of engineering machinery. The real-time given current of a starting gear clutch electromagnetic valve is controlled according to the pressure of the clutch pack; the real-time given current of a starting gear clutch electromagnetic valve is controlled according to the pressure of a clutch pack, and the real-time rotating speed of a driving motor is given according to the rotating speed of the output end of the clutch; performing low-temperature gear shifting in a static state: controlling the real-time given torque of a driving motor to be 0, and controlling the real-time given current combined with a clutch electromagnetic valve according to the pressure of a clutch pack; and low-temperature gear shifting is conducted in the running state, specifically, real-time torque of a driving motor is given according to clutch pack pressure control in combination with real-time given current of a clutch electromagnetic valve and based on the rotating speed difference of the input end and the output end of a clutch, and the smoothness of the starting and gear shifting process is improved.

This invention provides a hybrid power drive device and a vehicle having the same. The hybrid power drive device includes an engine, a first motor, a second motor, and a compound planetary gear set. The output end of the engine is driven to the motor shaft of the first motor. The motor shaft of the second motor drives the wheels to rotate. A first sun gear meshes with a first planetary gear, and both the second sun gear and the first planetary gear mesh with a second planetary gear. The second planetary gear meshes with a ring gear, and the ring gear is driven to the wheels. A brake controls the operating state of the second sun gear, a first clutch controls the engagement or disengagement of the engine output end with the first sun gear, and a second clutch controls the engagement or disengagement of the engine output end with the planetary carrier. The technical solution provided in this application solves the problem in related technologies where hybrid power drive devices struggle to simultaneously achieve efficiency and compactness across multiple operating modes, as well as flexible drive switching.

The invention discloses an electronic control pneumatic clutch control system and method based on a domain control principle and a vehicle, and relates to the field of automobiles. The system comprises a transmission control unit (TCU). The transmission control unit TCU is connected with a clutch control unit CCU through a signal transmission system, and the clutch control unit CCU is connected with a central clutch actuator CCA; the clutch control unit CCU comprises a gas supply module and an electric control module; the air supply module is connected with the electric control module and communicates the electric control module to the transmission control unit TCU; the electric control module comprises an electromagnetic valve assembly. The CCU is innovatively controlled according to a modular design mode through a domain control principle, the clutch control precision is met, meanwhile, the arrangement requirement of the CCU is lowered, and the overall hardware size is effectively reduced. The arrangement is more flexible, and the development cost is reduced.

The invention relates to the technical field of knee joint exoskeleton devices, in particular to a clutch control type knee joint exoskeleton damping device and a control method. Comprising a pair of rotating assemblies which are rotationally connected; the pair of leg connecting assemblies are connected with the pair of rotating assemblies correspondingly, and the pair of leg connecting assemblies are used for being connected with the thighs and the shanks on the same side of the user correspondingly; the rotary damper is controllably coupled with the knee joint assembly; the clutch device is arranged between the rotary damper and the knee joint assembly, and the clutch device is used for switching the coupling state of the knee joint assembly and the rotary damper; and the control unit is used for judging a gait cycle phase and a motion mode according to the signal acquired by the detection unit, and controlling the clutch device to switch the coupling state of the knee joint assembly and the rotary damper according to a preset control rule. And the exoskeleton device can intelligently control the clutch device to dynamically adjust the damping state of the knee joint.

The invention relates to a tractor chassis gear shifting valve group which comprises a proportional pressure reducing valve, an electromagnetic clutch valve, a logic valve, an overload valve and a logic valve pressure regulating valve. The logic valve is arranged in a main oil way of the hydraulic system and used for controlling system pressure. The logic valve pressure regulating valve is connected with the logic valve and is used for regulating the working pressure of the logic valve; the proportional pressure reducing valve is arranged on the main oil way and used for controlling the opening and closing states of the gear shifting clutch. The electromagnetic clutch valve is arranged in the main oil way and is used for performing clutch control on the gear shifting system; the overload valve is connected to the lubrication heat dissipation oil way and used for conducting pressure protection on the lubrication heat dissipation system. The stability of pressure and flow change can be improved, and the reliability of the power shifting valve group of the tractor is improved.

The invention relates to an HMCVT tractor reversing control method. The method comprises the steps that current operation parameters are read through a TCU; judging a commutation signal type according to the current operation parameter; and performing multi-control-stage control on clutch control pressure and electromagnetic valve current corresponding to the reversing signal type to complete reversing control. The precision and stability of reversing control can be improved, and the stability and reliability of a transmission system are enhanced.

The invention discloses a distributed clutch control method for a dual-unit wave energy array. The distributed clutch control method comprises the following steps: carrying out numerical modeling and hydrodynamic analysis on a dual-unit wave energy array model; establishing a time domain motion equation of the dual-unit wave energy array; establishing a state-space equation of the dual-unit wave energy array, replacing a convolution term of the time domain motion equation with the state-space equation, and calculating to obtain a motion state of the dual-unit wave energy array; distributed clutch control is implemented on the dual-unit wave energy array to maximize extraction of energy in waves. According to the method, the overall calculation efficiency of the system is remarkably improved by coordinating operation of the distributed controllers associated with each other, and compared with a traditional single-controller architecture, the method not only optimizes allocation of calculation resources, but also effectively improves the overall energy absorption efficiency of the dual-unit wave energy array, and the energy utilization rate of the dual-unit wave energy array is improved. And higher energy utilization rate and system response flexibility are shown.

The present invention provides a clutch transmission device for a gravity energy storage trolley based on automatic centrifugal force control. The transmission device includes a drive motor, a travel system, a device housing, a reduction transmission system, a clutch sleeve, a centrifugal weight system and a centrifugal weight transmission group. The clutch sleeve is movably sleeved outside the travel wheel shaft. The drive motor is respectively connected to the clutch sleeve and the centrifugal weight system through the reduction transmission system and the centrifugal weight transmission group. An inner gear ring is provided on the inner wall of the clutch sleeve, and a clutch spline matching the inner gear ring is provided on the travel wheel shaft. The centrifugal weight system is linked to the clutch sleeve and drives the clutch sleeve to slide, so that the inner gear ring engages with the clutch spline, thereby driving the travel wheel shaft and the travel wheel to rotate. The present invention uses a single drive motor to achieve transmission control and clutch control. The response speed is strongly correlated with the rotational speed, adapting to the lightweight and low-cost working conditions of the trolley, and can well meet the application characteristics of the slope-type gravity energy storage solution.

The utility model provides a clutch control mechanism of a riding type mini-tiller. The clutch control mechanism of the riding type mini-tiller solves the problem that an existing clutch control mechanism of the riding type mini-tiller is prone to causing abrasion of a clutch disc in a clutch. One end of the pedal rod is rotatably arranged on the mini-tiller through a rotating shaft, one end of the rotating plate is fixedly connected with a shifting fork shaft, the operating handle is arranged on the mini-tiller, the operating handle is connected with the rotating plate through a traction inhaul cable, the traction inhaul cable can drive the rotating plate to swing around the shifting fork shaft when the operating handle is closed, and a pedal plate is arranged on the pedal rod. The foot rest lever is connected with the rotating plate through a flexible connecting structure, and the flexible connecting structure can drive the rotating plate to swing around the shifting fork shaft when the foot rest is treaded. And the intense movement of the foot rest lever / operating handle can be flexibly transmitted to the rotating plate, so that the abrasion of the clutch disc is avoided, and the service life is effectively prolonged.

The invention provides a clutch control method and system, a vehicle and a medium, and belongs to the technical field of vehicle transmission control, and the method comprises the steps that a position deviation value sequence of a clutch is obtained, and the position deviation value sequence comprises a plurality of position deviation values; the position deviation value is equal to the difference value between the target position and the actual position of the clutch; pID control parameters are determined according to the working state of the clutch; performing filtering processing on the position deviation value sequence based on a least square method to obtain a filtering differential term coefficient; obtaining a variable speed integral item coefficient according to the position deviation value sequence, the variable speed integral threshold range and the integral item coefficient; generating a control signal according to a proportional term coefficient, the filtering differential term coefficient and the variable speed integral term coefficient; and the control signal is output to a clutch executing mechanism, and closed-loop control over the position of the clutch is achieved. According to the method, overshoot is remarkably reduced, and the robustness of clutch control is improved.

The invention relates to the field of clutch control, and discloses a clutch execution control method, which comprises the following steps of: performing CAN (Controller Area Network) communication between a gearbox controller and an engine controller, an anti-lock braking system and an instrument, and acquiring information such as the rotating speed of an input shaft, the rotating speed of an output shaft, oil temperature, a gear sensor, a pedal displacement sensor and a driving mode of a gearbox sensor; the following functions are achieved: a driver can control the clutch to be opened and closed through hand pinching in a manual mode. In the automatic mode, smooth starting can be completed without operating a clutch, and the clutch is automatically opened at a low rotating speed to avoid flameout of an engine. In the automatic mode, smooth and fast gear shifting can be completed only by operating a gear shifting rod without operating a clutch, gear shifting can be achieved without closing an accelerator, and galloping of an engine is avoided. In the automatic mode, a driver can open the clutch at any time through hand pinching, and intervention on a transmission chain at any time is achieved. In the automatic mode, the TCU can remind a driver that the gear is too low or too high.

The utility model discloses a self-locking and unlocking structure of a worm and gear speed reducer. The self-locking and unlocking structure comprises a power on-off control module, a positioning and limiting module, a protection buffering module and a clutch control module. According to the utility model, the device can be ensured not to be easily opened by external force when needing to be kept closed, so that accidents are effectively prevented; a self-locking and unlocking function is added, the device can be unlocked in time when needed, mechanical damage caused by long-time locking of the device is reduced, the overall durability and reliability of the device are improved, the functionality and the integration degree of the device are remarkably improved through the modular design, all the modules perform their own functions and work cooperatively, and the device is convenient to use. The power transmission and cut-off process is optimized, the performance of positioning, limiting, protection and clutch control is greatly enhanced, a solid foundation is laid for stable and reliable operation of the worm and gear speed reducer under various complex working conditions, and the limitation of traditional single-function design is comprehensively exceeded.

The application discloses a kind of electrical equipment performance comprehensive test device, including comprehensive test box and walking base, the top of the walking base is fixedly connected with support, the top of the support is rotatably connected with suspension frame, and the rotating axis of the suspension frame and comprehensive test box is horizontal.The application is provided with support, suspension frame, top protection trigger frame and side protection trigger frame, wherein the comprehensive test box is hung at the free end of the suspension frame, the top of the support is rotatably connected with the suspension frame, the side protection trigger frame is arranged on the two sides of the comprehensive test box, and the top protection trigger frame is arranged on the top, then the clutch control group and the winding buffer are arranged on the support, when the left and right sides or the top of the comprehensive test box is impacted, the suspension frame will swing down to drive the comprehensive test box to buffer subsidence, away from the impact area, the setting has impact displacement self-protection function, which greatly improves the self-protection performance of the comprehensive test box.

The invention relates to the field of waste copper recovery, in particular to a remelting recovery device for waste copper production, a melting furnace and a refining furnace are communicated through a transfer box, an opening and closing valve plate is arranged on one side of the interior of the melting furnace, lifting opening and closing of the opening and closing valve plate are achieved through a lifting rope mechanism, and the opening and closing valve plate controls the circulation state of molten liquid in the transfer box. The smelting furnace and the refining furnace are connected through the transfer box, the traditional transfer ladle transfer process is abandoned, it is ensured that molten liquid is at the optimal working temperature, a pipeline circulating treatment system is arranged in the refining furnace, impurity oxidation is promoted through local oxygen blowing, and the reaction efficiency is improved in cooperation with mechanical stirring; impurities can be synchronously collected in the stirring process to avoid impurity accumulation, clutch control switching of the spiral conveying mechanism is achieved through cooperation of the control cabin and the electromagnetic assembly, efficient separation and discharging of the oxidized impurities are achieved, production of the oxidized impurities is effectively promoted in the whole circulation process, the rapid impurity recycling function is achieved, and the refining efficiency is effectively guaranteed.

A pneumatic clutch control device of a railway vehicle comprises an air supply pipeline and a two-position three-way electromagnetic valve. The air supply pipeline is communicated between a main air reservoir of the railway vehicle air compression system and an air inlet of the pneumatic clutch; two ports of the two-position three-way electromagnetic valve are communicated with the air supply pipeline, and the other port of the two-position three-way electromagnetic valve is introduced into external atmosphere; a pressure switch I is arranged on the air supply pipeline between the two-position three-way electromagnetic valve and the pneumatic clutch; the set value of the pressure switch I is greater than the minimum value of the normal working pressure of the pneumatic clutch; a non-backpressure one-way valve and a pressure stabilizing air cylinder are sequentially arranged on the air supply pipeline between the main air cylinder and the two-position three-way electromagnetic valve; the pressure stabilizing air cylinder is provided with a second pressure switch, and the set value of the second pressure switch is larger than the maximum value of normal working pressure of the pneumatic clutch. And the controller can receive signals of the first pressure switch and the second pressure switch so as to control the two-position three-way electromagnetic valve. The boosting time of the clutch air cavity is shortened, friction plate loss in the boosting process is reduced, and the pressure is more stable when the pneumatic clutch works.

The utility model relates to the technical field of clutches, and discloses a clutch which comprises a driving wheel, a driven wheel and a clutch wheel carrier. A clutch control table is arranged on the driving wheel, a guide inclined plane and a limiting groove are arranged on the clutch control table, and a magnetic attraction block is arranged on the guide inclined plane; the clutch wheel frame comprises a shaft sleeve and a limiting column, the limiting column penetrates through the limiting groove to be opposite to the guide inclined face, a magnetic attraction piece is arranged on the limiting column, the magnetic attraction piece can be attracted by the magnetic attraction block to move in the radial direction, the limiting column is arranged in a clutch rotating cavity of the driven wheel, and a gap is formed between the inner wall of the clutch rotating cavity and the outer wall of the limiting column. The clutch rotating cavity is provided with a protruding part, the width of the magnetic attraction piece is larger than the minimum distance from the protruding part to the guiding inclined face, and the width of the magnetic attraction piece is smaller than the maximum distance from the protruding part to the guiding inclined face. When the device is applied to a motor control assembly, mutual non-interference between automatic operation and manual operation can be realized.