797 results about "Electromagnetic brake" patented technology

The invention relates to the field of friction materials, and discloses a friction material with a stable friction coefficient for an electromagnetic brake and a preparation method of the friction material. An adhesive comprises polysiloxane modified phenolic resin, benzoxazine and butyronitrile rubber powder; the reinforcing material comprises 1414 para-aramid pulp, calcium sulfate whiskers, composite mineral fibers, copper fibers and modified needle-like wollastonite; the friction increasing material comprises macroporous shell activated carbon, friction particles, garnet powder, barite and nano hafnium nitride; the antifriction material comprises graphite fluoride, nylon and composite modified hydroxyl silicate; the composite modified hydroxyl silicate is obtained by modifying hydroxyl silicate with diisocyanate and stearic acid and then compounding silane modified micro-nano calcium carbonate. The friction material provided by the invention is used for improving the braking stability of an electromagnetic brake and reducing equipment vibration.

The invention relates to the field of friction materials, and discloses a high-reliability friction material for an electromagnetic brake and a preparation method of the high-reliability friction material. Raw materials of the friction material comprise benzoxazine, phenolic resin, butyronitrile rubber powder, modified basalt fibers, PBO pulp, ceramic fibers, plant fibers, carbon fiber powder, potassium titanate lamellar crystals, barite, light calcium carbonate, friction particles, wollastonite powder, aluminum-titanium powder, feldspar powder, aluminum oxide, zircon powder, garnet powder, crystalline flake graphite, artificial graphite, flexible graphite and composite metal sulfide. And polymer lubricating material micro powder. The friction material provided by the invention is suitable for a high-temperature and high-humidity environment, the stability of the braking performance of a brake is improved, and the phenomenon that the brake slips due to attenuation of braking torque is reduced.

The invention discloses a vehicle control method and device and a vehicle. The method comprises the steps that in a current stroke determination period, when it is determined that an accelerator is released and a brake pedal is stepped down, the current stroke of the brake pedal is determined; if the difference value between the current stroke and the previous stroke of the previous stroke determination period is smaller than or equal to a preset difference value threshold value, the current deceleration is determined according to the current stroke, and the motor is controlled to decelerate according to the current deceleration and a proportional-integral control strategy; if the difference value between the current stroke and the previous stroke is larger than a preset difference value threshold value, or the duration of the maximum stroke of the current stroke reaches a first preset duration, an electromagnetic brake is controlled to conduct braking; and in the process of controlling the motor to decelerate, if the duration of the opposite actual rotation direction of the motor to the initial rotation direction reaches a second preset duration, updating the proportional-integral control strategy, and controlling the motor to operate according to the updated proportional-integral control strategy. According to the technical scheme, the vehicle can be better controlled.

The invention relates to the technical field of friction materials, and particularly discloses an electromagnetic brake friction material prepared from granules and a preparation process of the electromagnetic brake friction material in order to solve the problem that an existing electromagnetic brake friction plate is difficult to prepare or insufficient in performance. The reinforcing material comprises plasma modified aramid pulp, coupling modified composite mineral fibers, SiO2 coated tetrapod-like zinc oxide whiskers and carbon fiber-aluminum silicon whiskers; the filler comprises modified needle-like wollastonite and organic modified precipitated barium sulfate; the adhesive comprises boron-silicon synergistic modified phenolic resin and modified carboxy nitrile rubber. The raw materials are improved, and granules are prepared by adopting a mixing and crushing process, so that the content of an adhesive can be greatly reduced, meanwhile, the die filling efficiency can be improved, the die thickness and the high-temperature heat fading of the friction material can be reduced, a cold press molding process can be omitted, and the qualification rate of finished friction materials can be improved.

The invention discloses a vehicle and a control method thereof. The vehicle comprises a battery, a controller and an electromagnetic brake. The electromagnetic brake comprises a coil; the controller comprises a switch unit and a control unit; the first end of the coil is connected with the battery, the first end of the switch unit is connected with the second end of the coil, and the second end of the switch unit is connected with first power supply voltage; the control unit is connected with the control end of the switch unit; the control method of the vehicle is executed by the control unit. The vehicle control method comprises the steps that when an electromagnetic brake does not conduct braking, a control signal is output to the control end of a switch unit according to the actual current and reference current of a coil based on a proportional-integral control strategy, so that the voltage of the coil is controlled, and the current of the coil is controlled; wherein the reference current is rated current or holding current of the electromagnetic brake, the holding current is rated current with a preset proportion, and the preset proportion is smaller than 100%. According to the technical scheme, the stability of the electromagnetic brake is improved.

The invention relates to the technical field of brake detection, and particularly discloses a clamping mechanism for test bed brake detection, which comprises a supporting seat, a first clamping part, a moving part, a first elastic part, a rotating part, a driving part, a second elastic part and a second clamping part, and is characterized in that the second clamping part can clamp and fix a rotating shaft, and the moving part can be close to the rotating shaft; the first elastic part pushes the supporting base to move, so that after a brake disc on the electromagnetic brake makes contact with the end of the rotating shaft, the first elastic part is compressed, the driving part stretches into a round hole with a groove in the brake disc, the second elastic part is compressed, the rotating part can rotate, the driving part is clamped into the groove of the round hole, and therefore the brake disc is driven to rotate. After the brake disc is aligned with the rotating shaft, the first elastic part pushes the supporting base so that the brake disc can be arranged on the rotating shaft in a sleeving mode. According to the clamping mechanism for testing the brake of the test bed, manual alignment and installation by detection personnel are not needed, and the torque detection efficiency of large-batch electromagnetic brakes is improved.

The utility model relates to the technical field of power split hybrid transmissions, in particular to an electromagnetic brake device for locking a generator shaft, which comprises a cylindrical brake sleeve seat capable of movably sleeving an input shaft of an engine, and an electromagnetic coil assembly mounting position, a push disc mounting position and a driven disc mounting position are arranged on the surface of the brake sleeve seat. The electromagnetic coil assembly mounting position is sleeved with an electromagnetic coil assembly, the driven disc mounting position is sleeved with a driven disc, and a push disc is movably arranged on the push disc mounting position; a disc spring is arranged on the side, facing the driven disc, of the push disc, and an iron core in the electromagnetic coil assembly can act on the push disc to enable the push disc to move towards the driven disc and be connected with the driven disc in a clamped mode. The outer end face of the driven disc is provided with an output disc capable of being connected with a generator shaft in a sleeved mode. Compared with other types of locking mechanisms, the electromagnetic braking device has the advantages that the change amount of the vehicle is small, the structure is simple and compact, the control logic is simple, and the control effect is good.

The utility model relates to the technical field of wheel hub motors, and in particular to a brushless DC wheel hub motor; it comprises a wheel hub module, a motor module, a reduction box module, and a built-in electromagnetic brake system module; the motor shaft of the motor module passes through the housing of the reduction box module and is connected with the electromagnetic brake friction plate of the built-in electromagnetic brake system module; the built-in electromagnetic brake system module is also provided with a brake coil, a brake spring, and a brake armature; the spring pops out the brake armature, the brake armature limits the electromagnetic brake friction plate, and the electromagnetic brake friction plate locks the motor shaft of the motor module; after the brake coil is energized, a magnetic brake spring is generated and the brake armature is attracted, the brake armature is separated from the electromagnetic brake friction plate, and the motor shaft of the motor module is unlocked, thereby achieving the effects of low cost, small size, low power consumption, high low-speed torque, large rated output speed range, and high brake sensitivity.

The embodiment of the invention discloses a vehicle electromagnetic brake with a manually released cam and a using method and application, and relates to the field of electromagnetic brake structures, and the vehicle electromagnetic brake with the manually released cam comprises a friction disc, a brake disc, an armature, a magnet yoke, a release plate and a release rod; the middle of the magnet yoke is sleeved with a gear sleeve, the armature and the brake disc are sequentially arranged on the outer side of the gear sleeve in a sleeved mode, and the brake disc and the gear sleeve are in radial transmission and axial sliding connection. The release plate is mounted at the bottom of the magnet yoke through a bolt, and one end of the release plate is rotationally connected with the release rod, so that the release rod rotates on the release plate; an abutting part is arranged at the end, facing the magnet yoke, of the release rod, a cam curve is formed on the abutting part, and the abutting part abuts against the magnet yoke through the cam curve; therefore, the electromagnetic brake can be manually braked through mutual cooperation of the release rod and the release plate.

The utility model relates to the technical field of brakes, and provides an electromagnetic brake convenient to adjust an air gap, which comprises a stator, an armature and a brake disc which are sequentially arranged in the axial direction, and further comprises a dustproof flange cover, the dustproof flange cover is arranged outside the stator in a matched mode, and the brake disc is arranged between the dustproof flange cover and the armature; an air gap measuring hole is formed in the side of the dustproof flange cover, and a locking screw used for abutting against the stator is screwed into the side of the dustproof flange cover. According to the utility model, the air gap can be adjusted more quickly and conveniently, and the operation is simple.

Among other things, a rowing technology includes a first rowing machine having an electromagnetic brake providing a resistance to a rower of the machine in each rowing stroke of a series of rowing strokes of the rower An electronic controller causes the resistance of the electromagnetic brake to vary over each rowing stroke in a profile that emulates resistance to which another rower in a shell on water or on a second rowing machine is subjected in each rowing stroke of a corresponding series of rowing strokes.

The invention provides a medical CT hospital bed vertical lifting mechanism and a medical CT hospital bed, the medical CT hospital bed vertical lifting mechanism comprises a top plate, a shear fork mechanism, a driving system, a base, a detection device and a limiting device, the driving system comprises a rigid chain, a worm gear reducer, a servo motor and an electromagnetic brake, and the output end of the servo motor is connected with the worm gear reducer; the output end of the worm gear reducer is connected with the rigid chain, the electromagnetic brake is connected with a driving shaft of the rigid chain, the top plate is driven by the rigid chain to move up and down, and the detection device is used for monitoring the height of the top plate. The top plate and the base are each provided with a guide device matched with the shear fork mechanism. The limiting device comprises a mechanical limiting device and an electric limiting device. A dual-mode safety system with worm and gear self-locking and electromagnetic braking is adopted, so that the sickbed can be prevented from falling under extreme working conditions such as power failure, and dual guarantee of dynamic and static safety can be realized; and the safety of equipment and personnel is guaranteed through a triple protection framework of electric limiting and mechanical limiting.

The utility model discloses an obstacle avoidance control circuit of an AGV (Automatic Guided Vehicle). The obstacle avoidance control circuit comprises a lithium battery, an electromagnetic brake, a normally open relay, a normally closed relay, a whole vehicle controller and an obstacle avoidance sensor, the normally-open relay and the normally-closed relay are arranged in parallel, and are connected in series with the electromagnetic brake between the positive electrode and the negative electrode of the lithium battery; and the vehicle control unit and the obstacle avoidance sensor are respectively connected in series between the positive electrode and the negative electrode of the lithium battery. The output end of the vehicle control unit is electrically connected with the coil end of the normally-open relay so as to control the on-off state of the normally-open relay. The output end of the obstacle avoidance sensor is electrically connected with the coil end of the normally-closed relay, and when the obstacle avoidance sensor detects an obstacle, a high level is output, so that the normally-closed relay is disconnected. When the AGV reaches the goods taking position, the vehicle control unit outputs a high level, the normally-open relay is closed, the electromagnetic brake is kept in a power-on state, and therefore the AGV completes the goods taking action. According to the utility model, the driving safety and the goods taking accuracy of the AGV can be improved.

The utility model relates to the technical field of electromagnetic brake production, in particular to electromagnetic brake friction surface machining equipment which comprises a workbench, a supporting frame, an electric guide rail, a clamping assembly and a polishing assembly, the upper end face of the workbench is connected with the supporting frame, a groove is formed in the workbench, and the electric guide rail is connected into the groove; the clamping assembly is connected to the moving end of the electric guide rail, and the grinding assembly is connected to the supporting frame. According to the friction plate clamping device, when the clamping ends of the clamping assembly are in the use state, the multiple clamping ends can synchronously move towards the circle center position, friction plates to be machined are clamped and fixed through movement of the multiple clamping ends, meanwhile, when the friction plates with different thicknesses are machined, the height of the moving end in the height adjusting assembly can be adjusted, and the friction plates with different thicknesses can be clamped and fixed. And after the height of the moving end is changed, the height of the clamping end is also changed, so that the situation that the clamping end is higher than the friction plate to affect normal grinding is prevented.

The application relates to the technical field of control, and provides an electromagnetic brake control apparatus. The apparatus includes: a power supply management circuit, a first switch circuit, a freewheeling diode and a first control output end and a second control output end used to connect with two ends of an electromagnetic coil of the electromagnetic brake; the power supply management circuit includes: a power supply input end, a first output end and a second output end used to connect with an external power supply; an input end and an output end of the first switch circuit are respectively connected with the first output end and the first control output end, the first switch circuit is configured with a pulse width modulation function; a cathode and an anode of the freewheeling diode are respectively connected with the second output end and the first control output end.

To provide a robot system, a braking determination method and a braking determination program which can determine an abnormality of an electromagnetic brake accurately.SOLUTION: A robot system 100 is provided with an electromagnetic brake 60 that switches between a braked state where a brake is turned on to brake rotation of a motor as a driving source for a robot 10 and a released state where the brake is turned off, a brake current detecting part that detects currents flowing into the electromagnetic brake 60, and a control part. The control part obtains an estimated brake operation signal, as output of a predicted value from a learnt model 80 with respect a current signal, by using the learnt model 80 generated by machine learning, where the current signal based on a detected result by the brake current detecting part is set as an explanatory variable in teacher data and a braking operation signal showing switching timing for the switching by the electromagnetic brake is set as an objective variable in the teacher data.SELECTED DRAWING: Figure 1

The invention discloses a high-stability electromagnetic brake convenient to disassemble and assemble, and relates to the technical field of brakes. Comprising a shell, a base is installed on the top of the shell through a connecting shaft, a rotating shaft channel is formed between the base and the top of the shell in a penetrating mode, an armature is arranged on the portion, located on the surface of the rotating shaft channel, between the base and the shell in a sleeving mode, an electromagnetic coil is arranged in the shell, and an installation mechanism is arranged at the bottom of the shell. A compensation assembly is arranged at the top of the armature, a rotating disc is rotationally connected to the position, located on the surface of the periphery of the rotating shaft channel, in the cavity in the device shell, a connecting rod is arranged in the armature in a limiting mode, an unlocking assembly is arranged at the bottom of the shell, and the armature and the shell are installed easily and can be operated by one person; gaps in all directions between the armature and the electromagnetic coil are ensured to be the same, adjustment is easy, and automatic compensation after the brake pad is abraded is achieved.

The invention belongs to the technical field of agriculture, and particularly relates to a novel driving and steering system which comprises a supporting mechanism, the supporting mechanism comprises fixing plates which are symmetrically arranged in a square shape, the surface of each fixing plate is fixedly connected with a sleeve, a supporting rod is arranged between the two sleeves, and the supporting rod is fixedly connected with the fixing plates. The two ends of the supporting rod are connected with the inner wall of the sleeve in a sliding mode. According to the novel driving and steering system, by arranging the driving component, when the novel driving and steering system encounters obstacles with different heights, the overall height of equipment can be adjusted through extension or contraction of the electric telescopic rod so that the equipment can better cross the obstacles, meanwhile, the height adjustment of the equipment can be completed within a short time through the quick response characteristic of the electric telescopic rod, and the practicability is high. The working efficiency of the equipment is improved, when the electric telescopic rod is kept at a specific position, the electromagnetic brake can rapidly brake, and the stability of the equipment is ensured through cooperation with the electric telescopic rod.

The utility model discloses a torsion detection device for an electromagnetic brake. The torsion detection device comprises a workbench, a mounting seat, a transmission push cylinder, a clamp holder, a mounting frame, a detector and a sound insulation device, the sound insulation device is arranged, and the transmission shaft is driven to rotate by starting the driver, so that the transmission shaft can drive the sound insulation cover to rotate towards the top of the mounting seat, and the top of the mounting seat is shielded and covered; the sound insulation device is arranged in the sound insulation cover, the sound insulation cover is matched with the sound insulation pad arranged in the sound insulation cover to block and eliminate noise generated during testing, so that the noise can be quickly dissipated, the harm of the noise is reduced, and abnormal sound and noise generated in the testing process are isolated by arranging the sound insulation device; therefore, the problems that in original equipment, due to the fact that an electromagnetic brake makes contact with a direct fixing assembly, when the electromagnetic brake outputs power, the electromagnetic brake easily shakes, the electromagnetic brake slightly collides with the fixing assembly, and abnormal sound is caused are solved.

The invention relates to the technical field of forklifts, and discloses an all-wheel brake system and a counterbalance forklift truck, the all-wheel brake system comprises a driving motor, a first electromagnetic brake, a driving axle assembly, a driving wheel, a traveling pedal brake assembly, a steering motor, a second electromagnetic brake, a steering axle assembly, a driving wheel and the like. The first electromagnetic brake is arranged on the driving motor, and meanwhile, the second electromagnetic brake is arranged at the position of the steering wheel, so that four-wheel stable all-wheel braking of the forklift can be realized no matter in a manual driving mode or an automatic control mode, and the safety of the driving and parking process of the forklift is improved. And meanwhile, the encoder is additionally arranged in the motor, so that the accuracy and the reliability of vehicle operation are improved. And meanwhile, the two modes of manual driving and automatic control can be compatible, the use purpose of the forklift is expanded, and one machine with two purposes is achieved.

The utility model discloses a duplex winding electromagnetic brake which comprises a first winding, a second winding, a static iron core and a movable iron core, the first winding and the second winding are wound on the static iron core, a spring is arranged between the static iron core and the movable iron core, the static iron core is fixedly connected with a fixed plate assembly, and an internal spline is arranged between the movable iron core and the fixed plate assembly. The inner spline is located in the center of the outer spline and meshed with the outer spline, the outer spline can be fixedly connected with a motor rotating shaft, the braking effect on the motor is achieved, after the first winding or the second winding is powered on, a winding coil generates electromagnetic force, the movable iron core and the static iron core can be attracted, and the unlocking function is achieved. According to the utility model, the two sets of windings not only improve the reliability of electromagnetic braking and ensure reliable unlocking, but also are wound on the same static iron core and share one magnetic circuit, so that the space can be saved.

The invention discloses a method and system for detecting an electromagnetic brake driving module of a wind power paddle, and belongs to the technical field of wind power generation. Historical wind speeds of an area where a preset wind power generator is located are obtained, electromagnetic brake records under the historical wind speeds are collected, and the maximum month of the wind speeds of the area where the preset wind power generator is located is obtained; and according to the collected electromagnetic braking record and / or historical wind speed, the electromagnetic braking force of the wind driven generator blade is preset, and the braking force is divided. By acquiring the historical wind speed and the electromagnetic brake record of the area where the preset wind driven generator is located and acquiring the rotating speeds of the blades under different wind speed conditions, the braking force can be autonomously adjusted according to different wind speeds in the future time period, so that the electromagnetic brake force is matched with the wind speed; therefore, the blades can be safely braked within the preset time under the condition of different wind speeds, and the operation safety and reliability of the wind driven generator are improved.

The invention belongs to the technical field of heavy-load mobile robots, and particularly relates to a driving wheel for an outdoor high-speed heavy-load AGV (Automatic Guided Vehicle), which comprises a support assembly, a driving motor, a primary speed reducer, a hub speed reducer, a wet hydraulic brake, a reducing sleeve, a rim and a vacuum tire. According to the two-stage speed reduction transmission mechanism, a two-stage speed reduction transmission mode of the first-stage speed reducer and the wheel-side speed reducer is adopted, the speed reduction ratio of the wheel-side speed reducer part can be reduced, and therefore a wheel-side speed reducer product which is relatively simplified and relatively small in size can be used, the overall installation space is effectively ensured, and the overall heat dissipation condition of the transmission mechanism is improved. The vacuum tire is adopted to replace a traditional solid wheel piece, the wheel set adhesive force, the damping performance, the service life, the road surface protection capacity and the like are all superior to those of the prior art, the wet type hydraulic brake is more suitable for the use conditions of outdoor pavement, and compared with an electromagnetic brake, the wet type hydraulic brake is larger in braking force and better in service life. And the whole driving wheel can better adapt to outdoor and high-speed scenes.

The invention relates to the technical field of new energy power generation, in particular to a new energy fan master control system improvement method and system, and the method comprises the steps: collecting fault information of a new energy unit; performing electrical and program design according to the fault information; a fan unit is transformed on site according to electrical and program design; and carrying out performance test and acceptance on the transformed fan set. By improving the master control system of the new energy fan set, including upgrading the protection strategy and the control logic of the master control system, the fault probability of the set is reduced, the equipment maintenance time is shortened, the operation stability of the equipment is improved, the operation data and the state information can be monitored and analyzed in real time, and the management and the control of the operation state of the fan are enhanced. By technically improving the variable pitch system and optimizing the control logic of the variable pitch motor, frequent input of an electromagnetic brake, overcurrent of the motor and failure of a driver are avoided, the overall failure rate of the variable pitch system is reduced, the availability and the generating capacity of a unit are improved, and the electric quantity income is increased.

The utility model relates to the technical field of unmanned aerial vehicle propeller braking, in particular to a mechanical brake structure suitable for an aircraft wing, which comprises a motor, a brake disc, a steering engine, a steering engine rocker arm and a tension spring, the brake disc is composed of an annular brake pad, a flexible brake pad and a traction arm, the brake pad is arranged in front of a rotor of the motor, the steering engine rocker arm swings, the brake pad is pushed through the traction arm, and the flexible brake pad is separated from the rotor of the motor; the rear end of the traction arm is further connected with a tension spring, the tension spring is in a stretched state, and the brake pad is pulled through the traction arm so that the flexible brake pad can make contact with a rotor of the motor. The electric energy loss of the brake device is reduced, the endurance time and the cruising distance of the aircraft are increased, the locking mode and the working mode of the motor can be freely switched according to requirements, and the reliability of a mechanical structure is larger than that of an electromagnetic brake structure.

The invention discloses a turnover device of a welding positioner, belongs to the technical field of welding displacement, and aims to solve the problems that a friction disc of an electromagnetic brake is abraded after being used for a long time, a clamping frame still deflects after rotating to a machining position, the abraded friction disc cannot be found in time, and batch workpieces are easily scrapped when the welding position is inaccurate. The device comprises a base and two supports symmetrically and fixedly connected to the top face of the base, the side walls of the two supports are jointly and rotationally connected with a rotating shaft, the side wall of the rotating shaft is fixedly connected with a deflection frame, the side wall of the rotating shaft is rotationally connected with a welding plate, and the side wall of each support is fixedly connected with a locking mechanism and a scale plate. According to the welding device, the locking mechanism and the detection mechanism are arranged, so that the welding plate is kept positioned, the detection mechanism and the alarm are arranged to give an alarm for abrasion of the friction disc, and the protection mechanism is arranged to prevent the problem of welding dislocation caused by the fact that an external welding head is not stopped in time.

The utility model provides an electromagnetic brake convenient for heat dissipation, which comprises a heat dissipation assembly, and the heat dissipation assembly is arranged at the lower part of an electromagnetic brake body and comprises a fixed seat and a plurality of groups of heat dissipation fins; the radiating fins can absorb heat generated in the braking process and discharge the heat, the radiating area can be increased by arranging the multiple sets of radiating fins, the heat can be effectively transmitted to the external environment, and the phenomenon of overheating caused by accumulation of the generated heat in the electromagnetic brake body is avoided; the electromagnetic brake body can be kept within a proper working temperature range, the operation stability of the electromagnetic brake body is guaranteed, and the service life of the electromagnetic brake is prolonged.

The utility model discloses automatic motor parameter testing equipment, which comprises a testing rack, an instrument rack and a tested motor, and is characterized in that the testing rack is provided with a power mechanism, a power transmission mechanism, a shaft tail bearing seat and a jig mandrel; the power mechanism comprises a power shaft and a power assembly. The power transmission mechanism comprises a transmission shaft and an electromagnetic brake. One end of the jig mandrel is rotationally connected with the shaft tail bearing seat, and the other end of the jig mandrel is connected with the transmission shaft; a jig mounting seat is arranged on the outer side of the jig core shaft, and a tested rotor is connected with the jig core shaft; an industrial control computer, an instrument assembly and a printer are arranged on the test rack, and the instrument assembly comprises a gauss meter, an LCR tester, a digital oscilloscope, a power analyzer and an alternating current programming power supply. According to the utility model, parameters such as inductance, induced voltage, magnetic flux and the like of the motor can be tested and recorded automatically, reports are generated, the production cost is reduced, the detection speed and precision are improved, and the detection result is accurate and reliable.

The utility model discloses a torque adjustable electromagnetic brake which comprises a magnet yoke, an electromagnetic coil, reset compression springs, an armature, a brake disc, a cover plate and an adjusting stud, a plurality of compression spring blind holes and a plurality of compression spring through holes are formed in the magnet yoke, and a plurality of fixed reset compression springs are installed in the compression spring blind holes respectively. The adjustable reset compression springs are installed in the compression spring through holes respectively, internal threads are arranged on the hole walls of the middle sections of the compression spring through holes, the adjusting studs are installed in the compression spring through holes respectively and connected with the compression spring through holes in a threaded mode, and the adjustable reset compression springs are located between the corresponding adjusting studs and the armature. On the premise of not replacing parts, not increasing the use cost and not influencing the production schedule, the brake torque adjusting function is achieved, the problem that the torque is reduced due to the fact that the elastic force of a reset compression spring is reduced after long-term use can be solved, the problem that the brake torque needs to be changed due to application scene changes can also be solved, and the brake torque adjusting function is achieved. And the application range of the electromagnetic brake is wider.

A frame is provided for an actuator assembly of a vehicle brake having a housing enclosing a gear stage and a motor for delivering torque to the gear stage. The frame includes a base having a first interface for connecting to the gear stage and a second interface for connecting to the motor. Projections extend outward from the first interface for receiving fasteners to secure the base directly to the housing and transfer loads from the motor to the housing during braking operations.