9240 results about "Motor shaft" patented technology

A blower (1) for a fuel cell assembly for recirculating a gas mixture used for operating the fuel cell assembly is equipped with a drive motor (7, 8, 9) comprising a rotor (9) coupled to a motor shaft (7) and a stator (8) arranged radially outside the rotor (9). An annular channel (10) is provided radially between the rotor (9) and the stator (8) for conveying the gas mixture from an inlet side to an outlet side of the annular channel (10). A blower impeller (5) coupled to the motor shaft (7) is provided in the region of the outlet side of the annular channel (10) to convey the gas mixture from the inlet side to the outlet side of the annular channel (10) when rotating. Furthermore, a flow guide device (14) is provided to impart a circumferential swirl to the gas mixture entering the annular channel (10).The annular channel (10) is bounded by an assembly consisting of an outer wall (16; 21) and an inner wall (17), wherein the flow guide device (14) is provided on the inlet side between the outer wall (16; 21) and the inner wall (17).

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.

The invention discloses an oil-cooled motor rotor cooling structure, which is characterized in that a motor shaft comprises a hollow axial motor shaft inner cavity main oil way, a motor shaft excircle axial oil guide groove and a motor shaft radial oil guide hole arranged between the inner cavity main oil way and the motor shaft excircle axial oil guide groove; the rotor iron core is connected to the motor shaft; the two rotor end plates are respectively connected with the motor shaft and are respectively positioned at two ends of the rotor iron core; the rotor end plate is provided with a radial oil guide groove and a radial oil outlet groove; the radial oil guide grooves in the first rotor end plate are communicated with the axial oil guide grooves in the outer circle of the motor shaft and the rotor iron core magnetic isolation grooves, and the radial oil outlet grooves in the second rotor end plate are communicated with the rotor iron core magnetic isolation grooves. According to the invention, the flow distribution of the cooling oil paths at the two ends of the rotor can be more uniform at various rotating speeds without adding any additional parts, the influence on the dynamic balance of the rotor assembly is reduced, and the heat dissipation uniformity of the stator and the rotor of the motor can be improved.

A system, apparatus and method for controlling the stoppage of a spinning wing of a migratory bird decoy. When power is turned off by a remote controller, a photo eye sensor system identifies when a motor shaft needs to stop spinning so that the dark side of a wing stops facing upward. When the motor shaft is in a correct location, a wing shaft control cylinder is engaged, which locks the motor shaft / wing in the correct position with the dark side (feather) up. When engaged, a pin from the cylinder goes into a motor gear housing, which stops and holds the wing shaft, and therefore the wing, in the correct position.

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 invention discloses a control system for exciting a steam delivery needle to advance and retreat through double motors and a steam ablation pistol, the control system comprises a double-motor driving module, the double-motor driving module comprises a winding motor driving circuit, and the winding motor driving circuit is used for executing winding motor rotation according to a first control instruction and driving the steam delivery needle to move back and forth until the steam delivery needle moves to a target position; the striking motor driving circuit is used for executing rotation of the striking motor according to the second control instruction and controlling locking or instant release of the transmission component through a limiting component arranged on a striking motor shaft; the thrust feedback module is used for detecting the arriving position of the transmission part and feeding back the current arriving limiting information to the main control module; and the main control module is used for sending a first control instruction to the winding motor driving circuit according to the limiting information, and sending a second control instruction to the striking motor driving circuit under the condition that the winding motor driving circuit moves to a target position to control the pre-tightening force, so as to complete the rapid puncture and needle return of the steam delivery needle.

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 systems and methods presented herein include a sidewall coring tool assembly that includes a coring shaft having an internal cavity and configured to be coupled to a coring motor shaft of a coring motor at a first axial end of the coring shaft. The coring shaft includes a plurality of scoops disposed circumferentially on a first external surface of the coring shaft. Each scoop of the plurality of scoops forms a conduit from an exterior of the coring shaft to an interior of the coring shaft. The sidewall coring tool assembly also includes a coring bit coupled to the coring shaft at a second axial end of the coring shaft. The sidewall coring tool assembly further includes a static sleeve coupled to the coring motor and disposed radially within the internal cavity of the coring shaft.

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 utility model discloses a bearing bush oil sealing structure of a sliding bearing, which comprises a shaft, a bearing bush box, a bearing bush and an air blowing chamber, the shaft penetrates through the bearing bush box, the bearing bush is arranged in the bearing bush box, a second sealing packing is arranged on the right side of the bearing bush box, and a second sealing ring is arranged on the inner side of the second sealing packing. A third sealing packing is arranged on the right side of the second sealing packing, an air sealing cavity is formed between the second sealing packing and the third sealing packing, an air guide wing is arranged in the air sealing cavity and is in a conical trumpet shape, and a trumpet-shaped large opening of the air guide wing is in threaded connection with the side face, close to the bearing bush, of the interior of the third sealing packing; a trumpet-shaped small opening of the air guide wing is obliquely opposite to the direction of the second sealing ring; the structure is simple in design and low in improvement cost, positive pressure gas is introduced into the gap between the inner ring of the sealing ring and the shaft through the blowing chamber, and the oil gas pressure in the bearing bush chamber is kept in a slightly positive pressure state, so that the oil gas can be prevented from overflowing into a motor body from the fit gap between the second sealing ring and the motor shaft.

The utility model provides a cutting device of a mowing machine and the mowing machine, and the cutting device of the mowing machine comprises a connecting piece which is connected to a rotating shaft and rotates along with the rotating shaft; the cutterhead assembly comprises a cutterhead support and one or more blades arranged on the cutterhead support; and the locking piece penetrates through the cutterhead support to be connected with the connecting piece, so that the cutterhead assembly is connected to the connecting piece in a matched mode, and the cutterhead assembly synchronously rotates along with the connecting piece. The mower comprises a motor with a motor shaft and a cutting device mounted on the motor shaft. The maintenance cost of the cutting device can be reduced.

An axial flow blower includes a housing assembly, an air inlet assembly assembled with the housing assembly, an air outlet assembly and a motor duct assembly connected between the air inlet assembly and the air outlet assembly. The motor duct assembly includes a duct body, a motor fixed inside the duct body, a guiding cone mounted and matched with a first end of the duct body, and a fan blade mounted and matched with a second end of the duct body. The fan blade is fixed on a motor shaft of the motor, and a diameter of the fan blade is from 64 mm to 100 mm, and a diameter of the motor is from 30 mm to 50 mm, so that a power of the axial flow blower is greater than or equal to 2000 W and a blowing force is greater than or equal to 2500 g.

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.

There is provided a driving device that provides an exercise load to the user to enable strength exercise, and exercise equipment including the same. A driving device according to one aspect of the present disclosure, which winds a portion of a cable part and provides the cable part with an exercise load against an external force applied to the cable part, may include: a stator disposed on the outer side of a motor shaft in a circumferential direction; a rotor positioned on the outer side of the stator in the circumferential direction to be rotated by the stator, and coupled to the motor shaft to rotate together with the motor shaft; and a rotor sprocket formed along the outer surface of the motor shaft at the end thereof to rotate together with the motor shaft; a bobbin installed to be rotatable around a bobbin shaft and configured to wind a portion of the cable part therearound; and a timing belt connecting the rotor sprocket and the bobbin to transmit the rotation force of the rotor sprocket to the bobbin.

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.

The invention provides an axially compact joint module and a joint structure. The axially compact joint module comprises a harmonic assembly, wherein the harmonic assembly comprises a crossed roller bearing outer ring which is fixedly connected with a steel wheel, a crossed roller bearing inner ring which is fixedly connected with a hollow shaft, a flexible gear is meshed with the steel wheel, and the flexible gear is connected with a wave generator through a bearing; the motor assembly comprises a motor stator and a motor rotor which are coupled, a motor shaft is fixedly connected with the motor rotor, the meshing part of the flexible gear and the steel wheel extends into the motor shaft, and a small bearing is arranged between the inner circle of the motor shaft and the hollow shaft; the brake assembly comprises a brake rotating shaft and a brake cover plate, the brake rotating shaft is fixedly connected with the motor shaft, the brake cover plate is fixedly connected with the shell, and the outer circle of the motor shaft is connected with the shell through a large bearing and the brake cover plate in a matched mode. The meshing part of the flexible wheel and the steel wheel extends into the motor shaft and is overlapped in the axial size, the total length of the joint can be reduced by axially overlapping the small bearing and the large bearing, and the axial compactness of the joint module is improved.

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 relates to the technical field of permanent magnet motors, in particular to a high-speed permanent magnet motor capable of reducing motor shaft abrasion, which comprises a motor main body, and a motor shaft, a pressing device for carrying out vibration pressing on the motor shaft and a lubricating assembly for supplying lubricating grease to the motor shaft are arranged in the motor main body. The motor shaft in rapid rotation can generate vibration, a pressing device is annularly arranged outside the motor shaft, the vibrating motor shaft makes contact with the local inner end of the pressing device, then the pressing device is triggered to work, the multiple inner ends of the pressing device gather together to press the motor shaft, and the vibrating motor shaft is pressed at the specified center rotation position in the motor body. In addition, in the stage that the pressing device presses the motor shaft, the lubrication assembly automatically conveys lubricating grease into the motor shaft, the lubricating grease is conveyed to the surface of the external contact part of the shaft, and the shaft abrasion problem caused by dry contact is eliminated.

The invention discloses a motor shaft voltage testing device, solves the problem of testing difficulty caused by the existence of a coupler at a motor transmission end, is simple and adjustable in structure, can be suitable for a narrow space, and belongs to the technical field of shaft voltage testing devices. The device comprises a data acquisition instrument and an electric brush assembly, a voltage sensor in the data acquisition instrument is connected with the electric brush assembly and a reference ground through electric wires, the electric brush assembly comprises an electric brush box and an electric brush part, the electric brush part is connected with a spring in an insulated mode, and the spring is installed in the electric brush box. The electric brush part slides in the electric brush box through a spring, the electric brush part is connected with an electric wire, and the bottom of the electric brush box is provided with a threading hole for the electric wire to pass through.

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 present invention belongs to the technical field of permanent magnet motors, and specifically is an axial flow fan blade permanent magnet motor rotor, comprising a motor shaft rotatably connected inside a motor housing, an iron core fixed to the outside of the motor shaft, the iron core arranged inside the motor housing, a slot body provided on the outside of the iron core, a permanent magnet fixed inside the slot body, a first fan blade fixed to one end of the motor shaft, the first fan blade arranged inside the motor housing, a plurality of heat dissipation channels provided at equal intervals inside the iron core, a plurality of circulation channels provided at equal intervals on one side of the heat dissipation channel, the circulation channel being arranged between two adjacent permanent magnets, and a plurality of air outlets provided at one end of the motor housing away from the first fan blade; the on-off of the end of the heat dissipation channel can be switched by rotating a first baffle inside the heat dissipation channel, and at the same time, the first baffle drives a second baffle to rotate to control the on-off of the circulation channel, and the internal air can be circulated by controlling the on-off during the preheating process of the motor, so as to achieve faster preheating.