7382 results about "Motor shaft" patented technology

The invention relates to the technical field of motor manufacturing and detection, and discloses motor rotating shaft concentricity inspection equipment which comprises a supporting mechanism, a rotation driving mechanism, a detection sensor group, a data processing unit and an output unit. The detection sensor group comprises at least two displacement sensors arranged at intervals along the radial direction of the rotating shaft and at least one angle sensor used for acquiring the rotating angle of the rotating shaft; the data processing unit constructs a three-dimensional space motion trail model of the rotating shaft in the rotating process according to angle position data collected by the angle sensor in real time and radial displacement data collected by the displacement sensor in real time so as to determine concentricity parameters of the rotating shaft; the rotation driving mechanism is electrically connected with the data processing unit and controlled by the data processing unit to drive the rotating shaft to rotate at a constant speed at a preset rotating speed, and the data processing unit transmits concentricity parameters to the output unit to be displayed or stored. The defects of a traditional detection method in the aspects of precision, efficiency and intelligence are overcome.

The invention discloses a motor rotating speed measuring method, system and equipment based on electromagnetic induction, and belongs to the field of motors. According to the embodiment of the invention, firstly, a magnetostriction resonance signal and an electromagnetic induction signal of a motor rotating shaft are obtained; performing frequency domain conversion on the magnetostrictive resonance signal to obtain magnetostrictive resonance frequency domain characteristics; performing frequency domain conversion on the electromagnetic induction signal to obtain electromagnetic induction frequency domain characteristics; frequency domain energy spectrum fusion reconstruction is carried out on the magnetostriction frequency domain characteristics and the electromagnetic induction frequency domain characteristics based on the frequency band matching relation between the magnetostriction frequency domain characteristics and the electromagnetic induction frequency domain characteristics, and a dual-frequency coupling energy spectrum is generated; and finally, determining the rotating speed of the motor rotating shaft according to the frequency position and amplitude distribution of the energy peak in the dual-frequency coupling energy spectrum, thereby improving the measurement precision of the rotating speed of the motor in a complex environment.

The invention belongs to the technical field of rotating motors, and discloses a motor with a self-locking function, and the motor comprises a housing which is internally provided with a polygonal cavity, and the polygonal cavity is provided with at least two groups of corner parts which are oppositely arranged; the stator magnets are arranged in the polygonal cavity in pairs, the stator magnets are installed at the corner parts in a one-to-one correspondence mode, the sides, facing the center, of the stator magnets are provided with arc-shaped faces, the arc-shaped faces are provided with grooves penetrating through the stator magnets in the height direction, and the stator magnets are divided into a plurality of stator magnetic poles through the grooves; the grooves in each stator magnet are formed in the same position; the plurality of arc-shaped surfaces are encircled to form a mounting area, the rotor is rotatably arranged in the mounting area, and the motor shaft is fixed in the center of the rotor and penetrates out of the shell. The motor with the self-locking function is high in self-locking stability, low in abrasion and adaptive to a compact structure.

The invention relates to the technical field of electrical variable measurement, in particular to a rolling mill speed reducer monitoring and diagnosing system based on multi-source information fusion, which comprises an electrical parameter signal acquisition module for acquiring continuous readings of three-phase voltage and three-phase current of a rolling mill driving motor and synchronizing the readings. According to the method, the three-phase voltage and current data of the rolling mill driving motor are synchronously acquired, and the amplitude and phase are calibrated, so that a more accurate calibration electrical measurement set is obtained, and error propagation in a signal acquisition stage is effectively avoided; using the calibrated electrical data to directly calculate instantaneous input electric power, deducting motor loss to obtain an accurate motor shaft power sequence, and then using a Fourier transform method to extract key harmonic characteristics in a shaft power spectrum; and meanwhile, band-pass filtering and Hilbert transform analysis are carried out on the motor stator current, so that a clearer and more recognizable spectrum kurtosis value is obtained, and the judgment capability of current impact and periodic characteristics is enhanced.

The invention relates to the technical field of motor shaft size detection, in particular to motor shaft size detection equipment which comprises a detection table, a fixing mechanism, a length detection mechanism, a diameter detection mechanism and a cleaning mechanism. The length detection mechanism comprises a top plate, a detection plate, a first laser distance measuring sensor and a moving assembly, the cleaning mechanism comprises a transverse plate, an electromagnet, a sponge eraser, a telescopic assembly, a rotating assembly and a transmission assembly, and the diameter detection mechanism comprises a sliding frame, a sliding assembly and two second laser sensors. The length of the motor shaft can be detected, the diameter of the motor shaft can be obtained by arranging the two second laser sensors, the length and the diameter of the motor shaft can be synchronously detected by using one detection device, and the size detection efficiency of the motor shaft can be improved.

The invention provides a bearing shaft entering machine which is applied to the technical field of motor bearing machining and comprises a rack, the rack comprises a base and a top face, and the top face comprises a magnetic ring detection area, a press fitting area, a defective area and a feeding area; the magnetic ring detection area, the press-fitting area, the defective area and the feeding area are distributed on the top surface; the magnetic ring bounce detection assembly is used for detecting the bounce difference between the magnetic ring and the rotor; the bearing feeding assembly comprises a rail, a conveying carrier, a feeding motor and an induction piece. One end of the track is arranged on the top surface of the rack; at present, when a magnetic ring, a rotor and a bearing are combined, if a gap exists between the magnetic ring and the rotor or the concentricity of the magnetic ring and the rotor has an error, the operation power and the service life of a final motor finished product can be influenced by continuous processing, and the service life of the motor finished product is influenced. And the step sequence for detecting whether press-fitting forming is carried out after processing is very tedious, the working efficiency is relatively low, and the reject ratio is high.

A coaxial electric drive axle comprises an electric drive assembly and an electric drive axle housing, the drive assembly comprises a housing, a motor, a speed reducer gear set and a differential mechanism, the motor, the speed reducer gear set and the differential mechanism are arranged in the electric drive axle housing of an integrated structure, the electric drive axle housing comprises a main axle housing and a rear cover, the main axle housing is provided with a mounting cavity, the rear side of the main axle housing is connected with the rear cover, and the front side of the main axle housing is connected with the housing. The shell is provided with a stator fixing plate, a motor stator is fixed on the stator fixing plate, a motor shaft, an intermediate shaft and a differential mechanism are supported on the shell through bearings, the motor shaft is connected with the differential mechanism through a speed reducer gear set, the shell is connected with a main axle housing, and the motor, a primary driving gear, a secondary driven gear and the differential mechanism are arranged in a main axle housing mounting cavity. The motor shaft is a hollow shaft, one end of the left-end half shaft penetrates through the motor shaft to be connected with a differential mechanism left half shaft bevel gear, and one end of the right-end half shaft is connected with a differential mechanism right half shaft bevel gear.

The invention discloses a motor bearing remaining service life prediction method and system using health indexes, and belongs to the technical field of automation. According to the method, time domain, frequency domain and time-frequency domain characteristic extraction is carried out on a vibration signal sequence, and sensitive characteristics of a degradation process can be accurately reflected through monotonicity and time correlation screening. And performing principal component analysis and dimension reduction on the screened features, and selecting the maximum principal component as a health index. And calculating an initial degradation point of the health index and dividing the data set. When residual service life prediction is carried out, an input signal is decomposed into a trend part and a residual error part, different models are used for feature extraction, and finally a residual service life prediction result is output. Through the steps of health index construction, signal decomposition, feature extraction, residual service life prediction and the like, the degradation stage can be accurately divided, meanwhile, accurate feature extraction and service life prediction can be carried out on data of the degradation stage, and the service life prediction accuracy is improved.

The invention, which relates to the technical field of the motor, discloses a variable-frequency and variable-speed permanent magnet motor of a stator core heat dissipation structure without a casing, comprising a stator core, an end cover, a motor shaft, a rotor, an axial fan, a heat dissipation channel, a spacer ring, a heat dissipation port, a protective cover, a baffle plate and a mounting seat, the baffle plate is provided with a communication port corresponding to a mounting cavity and the heat dissipation port; the low-temperature shrinkage stress prevention assembly is mounted on the baffle and used for driving the baffle to rotate, so that the opening part of the heat dissipation opening is opened and closed; and the air flow adjusting assembly is arranged on the mounting seat and is used for adjusting the air flow in the heat dissipation channel based on the rotating speed of the motor shaft. According to the invention, the air flow adjusting assembly is used for adjusting the air flow rate in the heat dissipation channel when the rotating speed of the motor shaft changes, so that the air flow rate in the heat dissipation channel is increased when the rotating speed of the motor shaft is reduced, and thus the air flow rate in the heat dissipation channel is relatively high when the rotating speed of the motor shaft is reduced; and therefore, the influence on the gas flowing effect is small.

The invention provides a double-screw pump helical casing molded line forming and milling device, which relates to the field of helical casing processing, and comprises a base, a driving screw, a fixed bracket and a movable table, a threaded cylinder is installed on the bottom side in the moving table, the driving screw is further in engaged connection with the threaded cylinder through threads, two sets of machining material driving shafts are rotationally clamped to the moving table, and supporting structures are further arranged on the lower sides of the foremost ends of the parts, with the large diameters, of the two sets of machining material driving shafts. Lifting structures are further arranged at the front ends of the small-diameter parts of the two sets of machining material driving shafts, the fixing support is fixed to the base, a double-end driving motor is installed at the rear end of the top of the fixing support, and two sets of milling cutter driving shafts are rotationally clamped to the inner side of the upper end of the fixing support; and the rear end of the milling cutter driving shaft is in transmission connection with a motor shaft at the rear end of the double-head driving motor. Two sets of spiral raw materials can be machined at the same time, the manufacturing cost is low, and the problems that an existing machining machine tool is high in investment and low in machining efficiency are solved.

The present disclosure provides an underactuated end effector for a humanoid robot. The end effector includes a frame, a plurality of finger assemblies removably connected to the frame, and a thumb assembly removably connected to the frame. Each finger assembly includes a finger motor assembly. The thumb assembly includes a first thumb motor with a first thumb motor shaft configured to rotate about a first motor shaft axis, and a first motor gear connected to the first thumb motor shaft. The thumb assembly also includes a second thumb motor with a second thumb motor shaft configured to rotate about a second motor shaft axis, and a second motor gear connected to the second thumb motor shaft. The first motor shaft axis is substantially parallel to the second motor shaft axis, and the first motor gear axis is substantially parallel to the second motor gear axis.

The invention discloses a machine tool spindle thermal error real-time compensation method and system, and relates to the technical field of machine tool machining. At least three temperature sensors are arranged on the surface of a bearing machine body based on a main shaft motor, a three-dimensional laser displacement sensor is coaxially installed at the output end of a main shaft, and multi-point temperature data (T1, T2,..., Tn) and real-time displacements (Px, Py, Pz) of the main shaft in the X, Y and Z directions are collected in real time. Thermal error model parameters can be updated in real time through the set recursive least squares algorithm with the forgetting factor, thermal characteristic changes of the main shaft under different working conditions are automatically adapted, frequent manual intervention is not needed, an error compensation priority judgment unit of the motion compensation module can automatically switch compensation modes according to the thermal error change rate, and the accuracy of thermal error compensation is improved. When the error change rate exceeds 0.1 mm / min, the influence time can be shortened to 50 ms through the rapid compensation mode, and the automation level and the production efficiency of machine tool machining are effectively improved.

The invention relates to the technical field of electromagnetic compatibility testing, in particular to an electromagnetic compatibility testing device and method for the shaft current of a hub motor, and the device comprises a shielding chamber, a system master controller, a dynamometer, a hub motor tool and a testing system. A dynamometer, a hub motor tool and a test system are arranged in the shielding chamber; the hub motor tool is used for installing and fixing a hub motor to be tested. An output shaft is designed at the rotor end of the hub motor, and the hub motor is connected with the dynamometer through the output shaft. The test system is used for measuring the shaft current of the hub motor; the system master controller is used for controlling the wheel hub motor to operate under various working conditions and collecting shaft current under each working condition; and obtaining an electromagnetic compatibility test result according to the shaft current. The electromagnetic compatibility and reliability of the hub motor and the control system thereof can be improved.

A mounting system for a front view sonar transducer. The mounting system has a mounting assembly a mounting bracket affixed to a boat and to a mounting clamp. The mounting clamp has a clamping portion configured to clamp around an outside perimeter of a support tube. The mounting system further includes a waterproof motor housing positioned above the mounting bracket, the motor housing secured to a flange on the support tube. A tubular shaft extends through the waterproof motor housing and support tube, the tubular shaft having an upper portion extending upwardly from the waterproof motor housing and a lower portion configured to receive a front view sonar transducer. The tubular shaft directionally controlled by a motor in the motor housing. A trolling motor shaft extending through the tubular shaft with a motor for directionally controlling the trolling motor in the motor housing. The mounting system further includes one or more foot pedal assemblies configured to operate one or both of the electric motors within the waterproof motor housing.

A vehicle latch, including: a drive assembly, wherein the drive assembly includes a power release gear, a reset lever secured to one side of the power release gear and a gear lock lever located on an opposite side of the power release gear, the gear lock lever rotatably mounted to the power release gear and the reset lever; a switch link operably coupled to the gear lock lever; a clutch mechanism operably coupling the switch link to the reset lever; and a motor operably coupled to the drive assembly via a worm secured to a shaft of the motor, wherein rotation of the drive assembly by the worm performs one of a locking function and a power release of the vehicle latch.

The invention discloses a motor bearing fault diagnosis method, device and equipment and a medium, and relates to the technical field of motor bearing fault diagnosis, and the method comprises the steps: obtaining a vibration signal and a current signal of a motor bearing, and carrying out the feature extraction of the vibration signal and the current signal, obtaining a first time domain feature, a first frequency domain feature and a first energy feature of the vibration signal and a second time domain feature, a second frequency domain feature and a second energy feature of the current signal; carrying out feature fusion and feature dimension reduction on the first time domain feature, the first frequency domain feature, the first energy feature, the second time domain feature, the second frequency domain feature and the second energy feature to obtain a feature after fusion dimension reduction, and taking the feature after fusion dimension reduction as input; and determining whether the motor bearing has a fault and the fault type when the fault exists by using the fault diagnosis model. According to the invention, the fault diagnosis precision can be improved.

The invention relates to the technical field of vehicle body treatment, in particular to an air shower for vehicle body dust removal treatment, which comprises an air shower room, a crane, an air curtain machine and a dust collection grid group. A sliding rail is arranged in the air shower room, the crane moves along the sliding rail through a sliding foot base, a guide strip is arranged on one side of the crane, a servo mechanical arm is slidably installed on one side of the crane, and a roller fan is installed at the tail end of the servo mechanical arm and used for conducting multi-angle blowing on different parts of a vehicle body. A plurality of air curtain machines are arranged on the other side of the crane, each air curtain machine comprises a motor, an axial flow rotary vane and an air opening structure with an adjusting brake, and the air curtain machines are used for forming a continuous linear air curtain to conduct large-area dust removal on the surface of the crane body. A dust collecting grid set is arranged in the air shower, and particulate matter in air is collected through a high-voltage electrostatic adsorption structure. The system can realize multi-dimensional dynamic blowing, accurate wind power control and efficient dust collection, improves the dust removal efficiency and the cleaning effect of the vehicle body, and is suitable for automatic cleaning scenes in the field of vehicle manufacturing and maintenance.

The utility model provides an integrated electric pump set applied to a vehicle chassis active suspension, which comprises a shell component, a controller, a first hydraulic pump, a first motor, a second motor and a second hydraulic pump, the first hydraulic pump, the first motor, the second motor and the second hydraulic pump are axially arranged, the shell component comprises two motor shells, a controller shell and a connecting mechanism, and the two motors are respectively arranged in the two motor shells. The controller is installed in the controller shell, and the two hydraulic pumps are connected with motor shafts of the two motors respectively. The two motor shells are in axial butt joint, at least one group of bolt holes perpendicular to the axial direction are formed in the butt joint position, the connecting mechanism comprises at least one group of connecting assemblies, each connecting assembly comprises a connecting plate and a group of connecting bolts, through holes are formed in the two ends of each connecting plate, and the connecting bolts are matched with the bolt holes; the controller shell is connected to the upper sides of the two motor shells through bolts. According to the integrated electric pump set, the installation occupied space of the electric pump set assembly can be reduced, the structural design is optimized, and the disassembly difficulty can be reduced.

The present invention discloses an electromechanical brake parking mechanism and a control method, belonging to the field of vehicle braking. It includes a reduction motor and a brake caliper. A locking disc is fixed on the motor shaft of the reduction motor. An electromagnetic locking component is arranged inside the motor housing of the reduction motor and corresponds to the position of the locking disc. The locking head of the electromagnetic locking component corresponds to the locking hole opened on the locking disc. A parking position sensor is arranged inside the motor housing, and a magnet cooperating with the parking position sensor is fixed on the end face side of the locking disc; A locking position sensor is also arranged inside the motor housing to detect the forward and backward movements of the locking head. Both the locking position sensor and the parking position sensor are electrically connected to the controller, and the controller is electrically connected to the reduction motor. By adopting the above-mentioned electromechanical brake parking mechanism and control method, it has the advantages of more reliable control, shorter parking time, short noise duration, etc., making the maintenance cost and use cost of the electromechanical brake lower and safer.

The invention relates to an intelligent door anti-pinch method and system, an intelligent door comprises a frame body and a movable leaf capable of being opened and closed in a sliding mode in the frame body, and the method comprises the steps that the rotation angle value of a motor shaft of a motor unit is collected in real time; measuring an actual distance value between a preset measuring point on the movable leaf and a corresponding reference surface on the door frame in real time through a distance sensor; calculating a theoretical displacement value of the movable fan relative to the initial zero point based on the rotation angle value; continuously comparing the deviation value between the theoretical displacement value and the actual distance value in the displacement process of the movable fan; when the deviation value exceeds a preset safety threshold value, it is judged that the foreign matter exists; and sending a control instruction for stopping door closing or reverse operation. According to the scheme, whether foreign matter blocking exists or not is effectively recognized by comparing the deviation between the motor rotation angle and the theoretical displacement and the deviation between the sensor distance measurement and the actual distance, and non-contact obstacle clamping judgment is achieved. And the method is suitable for various forms of intelligent sliding door systems.

The invention provides a motor bearing monitoring method and system, computer equipment, a medium and a vehicle, and the method comprises the steps: obtaining a motor bearing signal, and carrying out the state monitoring of a motor bearing based on the signal value reduction amount and the signal waveform of the motor bearing signal in a preset time period, and dynamically adjusting the lubricating oil flow of the motor bearing according to the state monitoring result of the motor bearing. The motor bearing signal comprises motor bearing current, and the state monitoring result of the motor bearing comprises that the lubricating oil flow of the motor bearing at the current moment is smaller than preset lubricating oil flow. The state of the motor bearing can be monitored in real time according to the motor bearing signal, the lubricating oil flow of the oil pump can be dynamically adjusted according to the state monitoring result of the motor bearing, and therefore precise lubrication and protection of the motor bearing are achieved. The lubricating oil flow of the oil pump can be dynamically adjusted, the lubricating efficiency of the motor bearing is improved, the operation power consumption of a power assembly is reduced, and meanwhile the service life of the motor bearing can be prolonged.

The utility model relates to a universal type vertical numerical control single-face grinding machine which comprises a machine frame, a workbench, a first driving motor and a third driving motor, the third driving motor is connected with a grinding assembly, and a product placing structure is arranged on the workbench and located below the grinding assembly. A second driving motor is arranged on the rack below the workbench; a turntable capable of rotating along with the motor shaft part of the second driving motor is arranged on the motor shaft part; a placement groove is formed in the workbench; the turntable can rotate in the placement groove; a crankshaft part of the second driving motor is connected with the turntable; a feeding device is arranged at the position, above the feeding end of the rotary disc, of the rack; a group of placement through holes matched with products to be processed in shape are formed in the rotary table, and the placement through holes are matched with the groove bottom of the placement groove to form a placement area for placing the products to be processed; a feeding device is arranged at the position, above the feeding end of the rotary disc, of the rack; and the feeding device is matched with the placement through hole. The grinding machine can effectively solve the problems that an existing grinding machine is complex and poor in general applicability.

The invention relates to the technical field of motor shaft machining, in particular to a cold forging step-by-step extruding and stretching method for motor shaft preparation, which comprises the following steps: acquiring forward extrusion approximate average force, and calculating initial deformation resistance of a workpiece based on the forward extrusion approximate average force, obtaining a target parameter increment of a reverse extrusion process and an average inner diameter of a reverse extrusion target hollow part to determine a target volume deformation amount, and determining a process difficulty evaluation index based on the initial deformation resistance and the target volume deformation amount; the adjusting strength of the set value of the punching force is obtained, and the correlation between the process difficulty evaluation index and the follow-up process adjusting strength is determined based on the multiple adjusting strength of the current batch of workpieces and the process difficulty evaluation index; and in response to the correlation adjustment, determining a difficulty threshold of a difficulty state in which the workpiece is machined based on the process difficulty evaluation index. According to the invention, the stamping force and speed of the subsequent process are adaptively adjusted through the initial resistance and annealing softening effect of the material.

A robotic pool cleaning vacuum, includes a chassis, a suction duct topping the frame and opening into a filter bag placed above, and an impeller placed inside the duct to suck up debris via a suction port and push it into the filter bag, the chassis including a motor axle drawing the robot, the axle includes two drive wheels driven by a single motor, and an axis connecting the drive wheels transversely to the movement of the robot, the motor being configured to invert its direction of rotation in contact with a wall, the robot further includes a third free wheel for greater stability and maneuverability.

The present disclosure provides a garden blower, including a housing and a duct assembly, the duct assembly includes an outer duct, a motor fan blade assembly and a guide cone; the outer duct and the rear casing are arranged in such a way that there is an annular interval therebetween, and a plurality of first anti-vibration components are arranged between the outer duct and the holding casing; the first anti-vibration components are close to the motor fan blade assembly, and form a first anti-vibration plane perpendicular to the motor axis of the motor fan blade assembly. This technical solution can suppress the transmission of vibration generated by the rotation of the motor fan blade assembly to other components, especially the holding casing, and effectively avoids the mutual influence between the vibration of the motor fan blade assembly and the disturbance of the rear casing caused by the airflow.

The invention discloses an axial magnetic flux motor assembly tool and method which are used for assembling a single-stator double-rotor axial magnetic flux motor. The axial magnetic flux motor assembly tool comprises a rack, and a stator tool piece, a first rotor tool piece, a second rotor tool piece and a driving piece which are mounted on the rack. The stator tool piece, the first rotor tool piece and the second rotor tool piece are used for installing a stator assembly, a first rotor assembly and a second rotor assembly respectively, so that the stator assembly, the first rotor assembly and the second rotor assembly are always kept in a stable state, and magnetic disk adsorption force between a stator and a rotor is resisted. The first rotor assembly, the second rotor assembly and the stator assembly are always kept at the same interval in the assembling process, it is ensured that stator and rotor air gaps on the two sides of the stator are consistent, the magnetic attraction force of the rotor assemblies on the two sides to an iron core of the stator assembly is mutually counteracted, and therefore the axial magnetic flux motor high in assembling precision is obtained.

The invention discloses a mechanism for detecting the content of cyanide in solid waste, and belongs to the technical field of cyanide detection.The mechanism comprises a supporting bottom plate and a cylinder installed on the upper surface of the supporting bottom plate, a shaft rod of a stirring assembly is arranged at the inner bottom end of the cylinder in a bearing penetrating mode, and a servo motor is further installed on the supporting bottom plate through a motor support; the lower end of a shaft rod on the stirring assembly is connected with the shaft end of a servo motor through a first belt transmission structure, a feeding hopper is arranged on the barrel, a reciprocating telescopic mechanism is further arranged on the barrel, and a discharging door is further arranged on the barrel. When the cyanide gas detection device is used, gas can be extruded to a detection part of the detection assembly, so that cyanide gas can be in full contact with the detection assembly, the accuracy of a detection result is improved, in addition, in the process of detecting the cyanide content, the cyanide gas can be conveyed to the treatment tank to be treated, and the detection efficiency is improved. Therefore, the energy consumption of the detection mechanism is reduced, and energy conservation and emission reduction are facilitated.

The invention provides a method for replacing a bearing on a wind driven generator tower. The method comprises the following steps that S1, accessories at the N / D end of a motor are disassembled; s2, air gap filler strips are cushioned between the stator and the rotor; s3, mounting a tower bearing replacement tool, leveling and tensioning the axle suspension bush through a screw rod of the tool, adjusting the transverse position of the rotor, jacking the axle suspension bush together with the rotor by using a jack, adjusting the transverse and vertical positions of the rotor, and detecting the uniformity of air gaps; s4, disassembling an end cover of the N / D end of the motor, installing an inner side tool, disassembling an outer side tool, lifting out the end cover, and replacing a bearing; and S5, after the N / D end cover of the motor is reinstalled according to requirements, the air gap filler strip is drawn out, and the N / D end accessory is installed. According to the method, the overall tower descending cost of the motor is saved, the maintenance efficiency of motor bearing replacement and the like is improved, the safety risk possibly existing in the overall tower descending overturning disassembly process of the motor is avoided, and the product quality in the maintenance process of motor replacement and the like is better guaranteed.

The invention provides an intelligent motion control system based on multi-level expansion and multi-type motor compatibility, and aims to solve the technical problems that an existing motion control system is poor in expansibility and weak in motor type compatibility. The system comprises a main controller, a configuration memory and at least one detachable motor control module, the motor control module comprises a motion controller and a motor driver. The core of the method is that when a main controller is initialized, motor type parameters preset for all motor shafts are read from a configuration memory, and differential configuration is executed according to the motor type parameters: when a motor is of a first preset type, a motion controller and a motor driver are cooperatively configured; and when the motor is of the second preset type, only the motion controller is configured to output pulse / direction signals, and the motor driver is disabled. Through software and hardware decoupling, the number of shafts can be flexibly increased or decreased without changing hardware, various motors and encoders are compatible, the expansibility and deployment efficiency of the system are remarkably improved, and the development and maintenance cost is reduced.

A drive device for a vehicle includes a casing, a motor, a gear unit, an electric unit, and a heat medium pathway. The motor shaft is provided with a flow passage at a shaft center of a motor shaft. The casing includes a motor chamber, a gear chamber, and an electric unit chamber. The heat medium pathway is configured to supply a heat medium to the flow passage. One end of the motor shaft on one side in an axial direction is positioned in the gear chamber. At least a part of the electric unit chamber is positioned on the one side in the axial direction relative to the one end of the motor shaft. The heat medium pathway is connected with the flow passage at the one end of the motor shaft.