3372 results about "Torque transmission" patented technology

The invention relates to the technical field of automobile power assemblies, in particular to an automobile steering motor assembly and a manufacturing method, the automobile steering motor assembly is manufactured and assembled on a machining line, the automobile steering motor assembly comprises a machine shell, one side of the machine shell and a front end cover are installed through fastening screws, and the other side of the machine shell and the front end cover are installed through fastening screws. The motor assembly comprises a front end cover and a casing, stable sealing connection between the front end cover and the casing is ensured, a clamping jaw is arranged on one side of the front end cover and serves as a torque transmission interface of the motor assembly, an O-shaped ring is arranged on the inner side of the front end cover and used for improving the sealing performance of the connecting position of the front end cover and the casing, and a rotor assembly is arranged on one side of the clamping jaw. Through the technological processes of precise engraving, heating assembly, cooling fixation, cleaning lubrication, strict detection and the like, high-precision manufacturing and stable assembly of the vehicle steering motor assembly are ensured, and the problems that an existing vehicle motor assembly is insufficient in sealing performance, prone to being eroded by the environment and insufficient in structural strength are solved.

The disclosure relates to an air guide control system with a flap arrangement including flaps which can be rotatably inserted into a joining partner. An actuator drives a damper and a coupling rod transmits the torque of this driven damper to the remaining dampers of the damper arrangement. In the event of a flap fracture of at least one flap, a spring, locks the flap arrangement against further movement, so that error information is reported to the actuator via the coupling rod.

The invention relates to the technical field of railway vehicles, and provides a wheel set, a bogie and a railway vehicle. The wheel pair comprises a shaft sleeve structure, an axle, a pair of wheels and a connecting structure; the axle is rotationally arranged in the shaft sleeve structure; the pair of wheels is arranged at the two ends of the shaft sleeve structure respectively and rotationally connected with the shaft sleeve structure. The connecting structure is connected with the axle and the wheels and used for achieving synchronous rotation of the axle and the wheels. According to the wheel set, the bogie and the railway vehicle, the wheels are rotationally connected with the shaft sleeves, the axles are rotationally connected with the shaft sleeves, synchronous rotation between the axles and the wheels is achieved through the connecting structures, torque is transmitted between the axles and the wheels, the shaft sleeves bear bending moment, and therefore decoupling of the torque transmission function and the bearing function is achieved; the requirement on the strength of the axle is effectively reduced; in addition, the freedom degree of structural design is improved, and the overall weight is reduced.

Actuator (1) for providing a torque with a linear drive (2) and a gearbox (3) for converting a linear motion into a rotary motion, wherein the gearbox (3) comprises a lever (4) which rotates a shaft (5) to be subjected to the torque, wherein the gearbox (3) further comprises a coupling element (6), the coupling element (6) being connected to the linear drive (2) via a first connection point (7) and to the lever (4) via a second connection point (8), so that energy transfer between the linear drive (2) and the lever (4) takes place exclusively via the coupling element (6), and the coupling element (6) being rotatably mounted in both connection points (7, 8).

The present invention relates to a flywheel (1) for a drive train of a motor vehicle, comprising a main flywheel mass (4) forming an input side (2) which can be screwed to a crankshaft of an internal combustion engine through a plurality of screw holes (5) distributed in the circumferential direction (U) of the flywheel (1), a slip clutch (6) arranged downstream of the main flywheel mass (4) in a torque transmission path emanating from the input side (2), and a torsional vibration damper (7) arranged downstream of the slip clutch (6) in the torque transmission path and which has both an output flange (11) and a hub (8) forming an output side (3), which is connected in a rotationally fixed manner to the output flange (11), with through holes (10) distributed in the circumferential direction (U), wherein the torsional vibration damper (7) has a disassembly device (12) which can be removed by rotation and which is designedto remove the non-rotatable connection of the hub (8) to the output flange (11) so that the through holes (10) can be aligned with the screw holes (5).

The invention relates to the technical field of photography auxiliary equipment, in particular to a plane thrust adjusting device and a photography suive.The plane thrust adjusting device comprises an upper pushing piece, a lower pushing piece and a slope-shaped protruding block, a groove is formed in the outer circumferential surface of the lower pushing piece, a shifting rod is horizontally inserted into the groove, and a driving mechanism is connected to the shifting rod; through cooperation of the driving mechanism and the driving lever, the lower pushing piece is driven to rotate to enable the lower protruding block to move in the upslope direction of the inclined face of the upper protruding block, at the moment, the inclined faces of the upper protruding block and the lower protruding block are gradually staggered in the upslope direction, the distance between the upper pushing piece and the lower pushing piece is increased accordingly, and therefore upward pushing force is generated on the vertical plane. The magnitude of the thrust can be controlled or adjusted through the rotating angle of the lower pushing piece driven by the driving rod driven by the driving mechanism, energy of the rotating driving mechanism is converted into huge plane thrust to lock the ball body under the action of the two mechanical structures, and the ball body is locked through the unique secondary torque transmission adjusting mode. The operation process is lighter and smoother, and the hand feeling is soft and dense.

A rotating check valve is disclosed for improved debris collection within a wellbore. The check valve can be part of a debris removal tool that includes a motor, pump, gearbox, bailer, milling bit, the check valve, rotational shafts. On its uphole end, the check valve can be coupled with the bailer such that the check valve can rotate relative to the bailer. Also on the uphole end, the check valve can be rotationally coupled to a shaft that passes through the bailer and couples with the gearbox. On the downhole end, the check valve can be rotationally coupled to the milling bit. The check valve can include a torque transfer mechanism that transfers torque generated by the motor and gearbox to the milling bit. The check valve can include a unidirectional flow control mechanism that restricts the flow of fluid and debris to the uphole direction.

The invention belongs to the technical field of transmissions, and relates to a stepless speed change transmission device pressurized by a movable conical disc, which comprises a first-shaft conical disc unit, a second-shaft conical disc unit, an annular transmission part used for being in transmission connection with the first-shaft conical disc unit and the second-shaft conical disc unit, a thrust unit and a torsion unit, the thrust unit comprises a main thrust disc arranged at the non-conical-surface end of a first shaft moving conical disc, and the main thrust disc is connected with a first shaft in a circumferential fixing and axial moving mode. Torque is transmitted between the main thrust disc and the first shaft moving cone disc, axial thrust can be generated on the first shaft moving cone disc, and meanwhile clamping force needed by torque transmission of the annular transmission piece is formed. The axial stroke generated by mutual rotation between the main thrust disc and the first shaft moving cone disc is matched with the axial stroke needed by speed regulation of the first shaft moving cone disc. The torsion unit comprises a main torsion disc which is arranged on the first shaft in a sleeving mode in an axial sliding and circumferential fixing mode, and the main torsion disc is used for providing forward rotation torque for the power source.

The invention discloses a drilling, sealing and injecting integrated construction method for a self-propelled anchor rod. A drilling machine and the self-propelled anchor rod are connected through a rod body connector; a drilling machine is used for providing driving force, meanwhile, a round nut is used for limiting a hexagonal nut, and torque is transmitted to a drill bit; the front-section spiral deslagging channel and the rear-section spiral deslagging channel are used for synchronously discharging slag and chips; the drilling machine is controlled to rotate reversely, the constant-torque pressing piece and the anti-shearing tray are compacted at the hole opening through the hexagonal nut, and the installation operation of the self-advancing anchor rod is completed until the pressing state is achieved; a grouting pump is used for enabling slurry to enter a slurry mixer through a grouting pipe, then the slurry is injected into the deep position of a hole through a grouting channel and a drill bit slurry outlet, in the process, a large threaded section of the middle section is used for conducting dense plugging on a hole gap, the pressure maintaining effect can be achieved, and effective plugging of the crack can be achieved; and when the grouting pressure is suddenly increased, the grouting pump is controlled to stop, the grouting operation is stopped, and then the slurry mixer is blocked. By means of the method, hole drilling, hole sealing and grouting operation can be integrally completed.

An electric brake for a wheel rotor having a brake pad includes a housing with a passage. A piston assembly in the passage includes a spindle and a piston. The spindle is rotatable to cause the piston to move axially relative to the brake pad. A drive assembly includes a motor. A gear train is connected to the motor and the spindle. A coupling mechanism is coupled to the gear train and has a first condition enabling torque transmission from the motor to the spindle to axially move the piston to apply braking force to the brake pad. The coupling mechanism has a second condition disabling torque transmission from the motor to the spindle is prevented which permits the piston to retract and reduce the braking force on the brake pad without stopping or reversing the motor.

The invention relates to the technical field of nut disassembly and assembly, and discloses blind cavity nut tightening and loosening equipment which comprises a frame and a supporting plate, an outer shaft is installed at the bottom of the frame, an offset head is arranged at the tail end of the outer shaft, and a swing mechanism is arranged on one side of the frame; a tightening gun is installed on the supporting plate, the output end of the tightening gun is connected with an inner shaft, and the inner shaft is movably arranged in the outer shaft in a penetrating mode. The nut is pre-tightened by the inner shaft through torque transmission, and the nut is tightened by the outer shaft in a manner of combining angles and torques, so that the tightening precision of the nut and the consistency and stability of tightening torques of different nuts are improved; the invention further discloses a screwing and unscrewing method of the blind cavity nut, the screwing efficiency of the nut can be greatly improved through the method, and it is ensured that the screwing torque meets the screwing torque precision requirement.

The invention provides a single-ring sum-difference dual-modulation three-rotor coaxial magnetic gear and a new energy automobile hub motor. The magnetic gear comprises an h-type dual-modulation magnetic ring, an outer rotor, an inner rotor and a middle rotor. The inner rotor, the middle rotor and the outer rotor are coaxially and sequentially nested from inside to outside; the h-type dual-modulation magnetic modulation ring is positioned among the inner rotor, the middle rotor and the outer rotor, and is coaxially arranged with the inner rotor, the middle rotor and the outer rotor; the middle rotor is used as a power input rotor, the inner rotor and the outer rotor are used as power output rotors, a sum modulation effect is adopted from the middle rotor to the inner rotor, a difference modulation effect is adopted from the middle rotor to the outer rotor, and the sum modulation effect and the difference modulation effect share the h-type dual-modulation magnetic modulation ring; therefore, the h-type dual-modulation magnetic flux modulation ring modulates the axial magnetic flux and the transverse magnetic flux at the same time. The torque transmission capacity of the magnetic gear can be improved, the magnetic saturation phenomenon is restrained, the magnetic field modulation effect is enhanced, and the torque density of the magnetic gear is improved.

The invention relates to the technical field of railway vehicles, and provides a shaft sleeve structure, a wheel set, a bogie and a railway vehicle. The shaft sleeve structure comprises a first shaft sleeve and a second shaft sleeve; the first shaft sleeve and the second shaft sleeve are coaxial, are arranged on the two sides of the gearbox respectively and are suitable for being fixedly connected with the gearbox respectively. The first shaft sleeve and the second shaft sleeve are respectively provided with an axial shaft penetrating hole, and the shaft penetrating holes are suitable for penetrating an axle coaxially fixed with a wheel; the first shaft sleeve comprises a first pipe body close to the gear box and a second pipe body far away from the gear box, the second shaft sleeve comprises a second pipe body, the first pipe body is of a sleeve structure with a round inner side and a square outer side, and the second pipe body is of a round sleeve structure and is suitable for being rotationally connected to the inner side of a wheel. The axle can only transmit torque, the first shaft sleeve and the second shaft sleeve play a bearing role, the torque transmission function and the bearing function are decoupled, good bending resistance is achieved, and the safety coefficient is effectively improved.

A hand-held power tool is configured to receive an input indicative of a clutch setting for an electronic clutch from the tool operator, where the clutch setting is selectable from a drill mode, an automated drive mode and one or more user-defined drive modes. Each of the user-defined drive modes specifies a different value of torque at which to interrupt transmission of torque to the output spindle. In an automated drive mode, the controller interrupt torque to the output spindle in an automated manner when a fastener being driven reaches a desired stopping position. In a selected one of the user-defined drive modes, the controller sets a value of a maximum current threshold in accordance with the selected one of the user-defined drive modes and interrupts torque to the output spindle when current measures exceeding the maximum current threshold.

The invention relates to the technical field of natural gas treatment, and particularly discloses a turbine and motor double-drive magnetic levitation natural gas expansion recompression unit, system and method, and the turbine and motor double-drive magnetic levitation natural gas expansion recompression unit comprises a natural gas expansion machine, a high-speed synchronous motor and a natural gas compressor which are coaxially and rigidly connected; the magnetic suspension supporting system comprises an expansion side magnetic suspension bearing arranged at the output end of the natural gas expansion machine and a compression side magnetic suspension bearing arranged at the input end of the compressor, and is used for realizing non-contact suspension and torque transmission of the rotor; the electric control unit comprises an electric appliance cabinet and a pressure sensor, a converter and a main controller are arranged in the electric appliance cabinet, the converter is connected with a power grid and the high-speed synchronous motor, and the main controller dynamically adjusts the operation mode and power of the high-speed synchronous motor by taking the outlet pressure of the natural gas compressor as a control variable. The natural gas compressor is driven by the natural gas expansion machine and the highly synchronous motor, the unit with the reverse power generation function is adopted, the operation flexibility of the unit is improved, and the comprehensive utilization rate of energy is remarkably increased.

The invention discloses an electric locomotive three-dimensional digital-analog simulation teaching system constructed based on an unreal engine technology, and relates to the technical field of electric locomotive teaching. Comprising a three-dimensional model construction module which is used for generating a hierarchical three-dimensional model of electric locomotive equipment through combination of polygon modeling and parametric modeling; and the physical engine interaction module is integrated with an unreal engine physical system and is configured to process the real-time solution of the locomotive kinetic parameter equation set. According to the method, a highly accurate three-dimensional model is created by combining polygon modeling and parametric modeling on the complex equipment of the electric locomotive, the model can support detailed level-of-detail rendering so as to adapt to different observation distances, and in the physical engine interaction module, the model can be applied to the physical engine interaction module. Through the train longitudinal dynamics calculation unit, the traction transmission simulation unit and the braking system modeling unit, the system can simulate non-linear changes in the wheel-rail contact force, traction motor torque transmission and tread braking process in real time, so that various dynamic effects can be visually displayed in the teaching process.

The invention relates to a double-layer permanent magnet radial field modulation type magnetic gear and a new energy automobile hub motor, the magnetic gear comprises a high-speed rotor, a magnetic regulation stator and a low-speed rotor, the high-speed rotor is composed of a high-speed rotor iron yoke and high-speed rotor permanent magnets, and the low-speed rotor is composed of a low-speed rotor inner layer permanent magnet, a low-speed rotor outer layer permanent magnet and a low-speed rotor iron yoke; the high-speed rotor iron yoke, the high-speed rotor permanent magnet, the flux-adjustable stator, the low-speed rotor inner-layer permanent magnet, the low-speed rotor outer-layer permanent magnet and the low-speed rotor iron yoke are coaxially nested in sequence from inside to outside; the high-speed rotor permanent magnet is composed of a plurality of permanent magnet modules of umbrella-shaped tooth structures, the low-speed rotor inner-layer permanent magnet is magnetized in a Halbach arrangement mode, the low-speed rotor outer-layer permanent magnet is magnetized in the radial direction, and the high-speed rotor permanent magnet is magnetized in a Halbach arrangement mode of umbrella-shaped teeth. The torque transmission capacity of the magnetic gear can be improved, the magnetic saturation phenomenon is restrained, the magnetic field modulation effect is enhanced, and the torque density of the magnetic gear is improved.

The invention relates to the technical field of equipment monitoring, in particular to an intelligent monitoring method and system for ship power equipment, and the method comprises the following steps: synchronously collecting the operation time sequence data of the equipment; based on the ship power transmission topological structure, generating a dynamic physical constraint model between devices; and inputting the collected equipment operation time sequence data into the dynamic physical constraint model, calculating a host-gear box torque transmission residual error and a gear box-shafting rotating speed matching residual error sequence, and when the zero-crossing rate sudden change frequency of any residual error sequence exceeds a preset sudden change frequency threshold value in a preset time window, triggering an early warning mechanism. Compared with the limitation that a traditional single-point vibration threshold method cannot cover a multi-node cooperative fault, the cross-equipment coupling fault recognition rate is increased, and the coverage range of the cross-equipment coupling fault is widened.

A furniture drive includes an adjustment device having a rotatably-supported adjustment element, a transmission mechanism for transmitting a force of the adjustment element, an overload safety device configured to couple the adjustment element with the transmission mechanism upon a rotation of the adjustment element with a torque below a predetermined limit torque. The overload safety device is further configured to decouple the adjustment element from the transmission mechanism upon a rotation of the adjustment element with a torque above the limit torque, preferably such that no torque transmission between the adjustment element and the transmission mechanism takes place. The overload safety device includes a first component having a longitudinal direction and a second component configured to be moved in a direction extending transversely to the longitudinal direction of the first component when the torque is above the limit torque.

The invention provides a portable engineering exploration drilling machine for rock core drilling and a drilling coring method.The portable engineering exploration drilling machine comprises a drilling machine base, a lifting system, a power head assembly, a clamping mechanism and an operation table, the power head assembly comprises a power head and a driving mechanism, and the power head comprises a driving main shaft of a hollow structure; the torque transmission device is configured for torque transmission, axial feeding and / or coring of the drill rod; the power head is arranged on the sliding frame, and a third driving mechanism is configured to drive the power head to conduct limited translation in the direction perpendicular to the axis of the drill rod so that the power head can be freely switched between the first position and the second position. According to the drilling machine, translation of the power head can be achieved, drilling of engineering investigation construction can be met, standard penetration testing can be conducted, and the working efficiency and the construction progress are improved; and due to the structural design of the hollow mandrel, the coring work is facilitated, and the labor intensity of operators is greatly reduced.

The embodiment of the invention provides an electric control clutch semi-combination point position self-learning method and device, and relates to the technical field of clutch control, and the method comprises the steps: controlling a motor to carry out zero position self-learning, and recording a mechanical zero position; determining that the vehicle meets a first vehicle state condition, and performing clutch semi-joint point self-learning; a semi-combination point position obtained through self-learning is stored in a memory, and current odometer data is recorded; determining whether the clutch is completely run-in; through self-learning, change of a clutch semi-joint point caused by long-time work of the clutch and semi-joint point deviation caused by manufacturing and assembling differences of the clutch are corrected, and torque transmission capacity reduction caused by fast change of the semi-joint point when running-in of the clutch in the initial life cycle is not complete is prevented. Therefore, the torque transmission accuracy of the clutch is ensured.

The invention belongs to the technical field of speed reducers, and particularly relates to a multi-point meshing compound planetary gear speed reducer, a driving wheel set and a robot driving module. Wherein the multi-point meshing compound planetary gear reducer is provided with a sun gear serving as power input; the duplex planet gears are uniformly distributed around the sun gear, the duplex planet gears are composed of first planet gears and second planet gears, and the sun gear is meshed with the first planet gears; an intermediate planet gear exists between any two adjacent second planet gears in the circumferential direction, and each intermediate planet gear is meshed with the two adjacent second planet gears at the same time; an inner gear ring is arranged on a machine shell of the speed reducer, and the inner gear ring is meshed with the intermediate planet wheel. An existing planetary reducer has defects in the torque transmission capacity and the bearing capacity, a combined structure of a duplex planet wheel and an intermediate planet wheel is adopted, the intermediate planet wheel forms a multi-point meshing relation in the transmission process, loads are evenly dispersed, and the torque transmission capacity and the bearing capacity of the reducer are improved.

The invention discloses a mahjong machine and a horizontally-pushing tile feeding device and a tile supporting plate transmission mechanism thereof, the mahjong machine comprises a tile feeding seat, a tile supporting plate, two tile feeding curve cams, two tile feeding rocker arms, two tile feeding rocker arm shafts, two tile feeding rocker arm cams and two first gears, the tile feeding rocker arm cams are fixedly connected with the tile feeding rocker arm shafts, cam grooves are formed in the tile feeding rocker arm cams, and the tile supporting plate transmission mechanism is arranged on the tile feeding seat. The first gear is rotatably mounted on the mahjong feeding seat and is in matched transmission with the mahjong feeding rocker arm cam through a crank; and the two first gears are driven by a horizontal pushing mahjong tile feeding motor to rotate synchronously. According to the scheme, the gear transmission mechanism is adopted, the cam is installed on the mahjong tile feeding rocker arm shaft and is in matched transmission with the mahjong tile feeding rocker arm shaft through the crank gear, transmission torque is large, stability and synchronism are better, the torque transmission capacity and bearing capacity of the mechanism are improved, the supporting strength of the mahjong tile supporting plate is improved, the transmission structure is more reasonable, and lifting of the mahjong tile supporting plate is smoother and more reliable; installation and debugging are more convenient, and maintenance, disassembly and assembly are more convenient.

The invention discloses a mahjong machine and a horizontally-pushing mahjong tile feeding device thereof, a mahjong tile supporting plate transmission mechanism for driving a mahjong tile supporting plate to lift comprises two mahjong tile feeding curve cams, two mahjong tile feeding rocker arms, two mahjong tile feeding rocker arm shafts, two mahjong tile feeding rotating gears and two first gears, and the first gears are incomplete gears; a toothed part and a toothless part are arranged on the first gear, and the first gear is in matched transmission with the mahjong tile feeding rotating gear: when the toothed part on the first gear is in meshed transmission with the mahjong tile feeding rotating gear, the first gear drives the mahjong tile feeding rotating gear to rotate; when the toothless part on the first gear is matched with the mahjong tile feeding rotating gear, the mahjong tile feeding rotating gear does not rotate; and the two first gears are driven by a horizontal pushing mahjong tile feeding motor to rotate synchronously. According to the scheme, all-gear transmission is adopted for the tile supporting plate transmission mechanism, the torque transmission capacity and the load bearing capacity are enhanced, the stability and reliability of lifting motion of the tile supporting plate are improved, the transmission structure is more reasonable, and maintenance and installation are more convenient.

The invention discloses a reverse transmission locking and overload protection double-acting mechanism and an electric cylinder. The double-acting mechanism comprises a first shaft sleeve, a second shaft sleeve and a third shaft sleeve, the transmission wheel is movably arranged on the first shaft sleeve in a sleeving manner; the groove plates are oppositely and fixedly mounted on the transmission wheel in the circumferential direction and are provided with grooves for placing the balls; the retainer is mounted on the first shaft sleeve in a torque transmission connection manner and is provided with a first mounting hole for accommodating the ball; the convex sleeve is installed on the first shaft sleeve in a torque transmission connection mode, the first end of the convex sleeve is in direct or indirect contact connection with the balls, and a convex structure is arranged at the second end of the convex sleeve; the taper sleeve is connected to the lead screw shaft through a key, the small end of the taper sleeve is provided with a groove structure matched with the protruding structure, and the taper sleeve is provided with an outer conical surface; the sleeve is relatively and fixedly connected with the shell of the electric cylinder and is provided with an inner conical surface matched with the outer conical surface of the conical sleeve; one end of the compression elastic piece is pressed on the limiting end face fixed relative to the lead screw shaft, and the other end of the compression elastic piece abuts against the large-head end face of the taper sleeve.

The invention discloses an automobile transmission shaft with a kinetic energy recovery function, and relates to the technical field of vehicle transmission. The problem of torque transmission vibration energy recovery is solved. The driving shaft is in transmission connection with a vehicle driving source, the driven shaft is in transmission connection with a vehicle driving wheel, the transition shaft is used for being in transmission connection with the driving shaft and the driven shaft, and the energy recovery part is fixed to a vehicle body. The opposite sides of the driving shaft and the transition shaft are each provided with a set of pawls. The driving shaft and the transition shaft are arranged, the driving shaft and the transition shaft are meshed and matched through the pawls, meanwhile, energy conversion is conducted through piezoelectric ceramics, so that second-order vibration energy in the forklift driving or forklift driving process can be absorbed and converted, energy recovery is achieved, meanwhile, a rubber cushion block is arranged, on one hand, vibration buffering can be conducted to a certain degree, and on the other hand, the energy recovery efficiency is improved. And on the other hand, the piezoelectric ceramics can be prevented from being damaged when being driven by a relatively large torque.

The invention provides a multi-magnetic-circuit single-magnetic-ring dual-modulation three-rotor coaxial magnetic gear and an automobile hub motor, the magnetic gear comprises an inner rotor, a T-shaped dual-modulation magnetic ring, an intermediate rotor and an outer rotor, the inner rotor, the T-shaped dual-modulation magnetic ring and the intermediate rotor are nested in sequence and are coaxially configured to form a radial and modulation coaxial magnetic gear structure; the middle rotor, the T-shaped dual-modulation magnetic modulation ring and the outer rotor are sequentially nested and coaxially arranged to form an axial and modulation coaxial magnetic gear structure; and sum modulation is adopted between the inner rotor and the intermediate rotor, sum modulation is adopted between the intermediate rotor and the outer rotor, and the two sum modulation and sum modulation share one T-shaped dual-modulation magnetic modulation ring, so that the monotonic magnetic ring dual-modulation effect is realized. The size of the magnetic gear can be reduced, the torque transmission capacity of the magnetic gear is improved, the magnetic saturation phenomenon is restrained, the magnetic field modulation effect is enhanced, and the torque density of the magnetic gear is improved.

The invention discloses a small generator, and relates to the technical field of generators. The motor comprises a shell, double-end heat dissipation ventilation holes, a permanent magnet shielding rotor and a temperature control torsion limiting protection assembly. The grooves in the periphery of the rotor and the built-in paddles construct through airflow during rotation, so that self-dispersing heat dissipation is realized; coil temperature rise triggers a triode through a thermistor to drive a protection electromagnet, torque transmission of a fluted disc friction coupling is adjusted, and continuous derating can be achieved until zero-coupling shutdown is achieved; the permanent magnet adjusting assembly rapidly cuts off magnetic field output through an iron shell-aluminum strip-permanent magnet combination and an electromagnetic locking mechanism, and it is guaranteed that no induced voltage exists in the overhaul period.

The invention discloses a piston assembly of a motor brake and an assembling process of the piston assembly, and relates to the technical field of motor brakes. Comprising a caliper shell, a caliper body assembly is installed on one side of the caliper shell, a power transmission unit assembly is detachably installed on the caliper body assembly, a positioning pin is arranged on the caliper body assembly, and a positioning hole matched with the positioning pin is formed in the power transmission unit assembly; the caliper body assembly of the caliper comprises a main support, a second support and a third support, wherein the main support is detachably installed on a caliper shell; the sleeve is detachably mounted on the inner side of the main bracket; the nut is connected into the sleeve in a sliding manner; and the ball screw assembly is connected into the nut through a thread. According to the invention, through arrangement of structures such as the caliper body assembly, torque transmission, clamping force transmission and stress support of parts are carried out in a highly integrated manner, installation and signal transmission of a force sensor in a very narrow space are realized, and the performance is reliable.

The invention discloses a meter-scale leveling and aligning static pressure rotary table shaft system structure expanding torque in the radial direction and a method. The meter-scale leveling and aligning static pressure rotary table shaft system structure comprises a base, a lower plate, an upper plate, a leveling structure, an aligning structure and a workbench. A lower plate is arranged on the base, an upper plate is arranged on the lower plate, the upper plate is fixedly connected with a rotor, and the rotor is directly connected with a motor rotor; the top end of the upper plate is vacant, and the bottom end of the upper plate is provided with an adsorption structure and a supporting surface and matched with the top end of the lower plate; the leveling structure and the aligning structure are both mounted on the lower plate and are arranged on the same horizontal plane; according to the rotary table shaft system structure, a torque transmission path expanding in the radial direction is adopted, the extending amount of an aligning ball head is controlled through an aligning structure, a lower plate is promoted to move in the opposite direction of the extending direction of the aligning ball head relative to an upper plate, and axial aligning of a workbench and a rotor is achieved; and the leveling structure is used for positioning the plane of the workbench through three points, so that the workpiece is leveled. According to the invention, the leveling and aligning functions of large-size high-precision rotary tables with meter-scale calibers and above can be realized, and the table-board distance of the rotary table is reduced.