148 results about "Transaxle" patented technology

This invention discloses a three-point tractor with full suspension and all-wheel braking system, aiming to provide a system that improves the overall driving comfort of the three-point tractor to meet higher customer demands. It includes: a steering bracket assembly mounted on a slewing bearing of the chassis; a front wheel mounting bracket rotatably mounted on the steering bracket assembly via a pin; a front wheel damping system including a front wheel shock absorber connecting the front wheel mounting bracket and the steering bracket assembly; and a rear wheel damping system including a rubber spring and a damper mounted on the chassis. The chassis is supported on the drive axle housing by the rubber spring, and the drive axle housing has a damper connection part connected to the damper via drive axle fixing bolts.

The application relates to the technical field of new energy commercial vehicle chassis, and particularly discloses a vehicle with a modular hydrogen fuel cell heavy truck arrangement structure, which comprises a power system, an energy storage module system and a driving system. The power system is arranged with a flattened high-low temperature cooling integrated sub-module, a fuel cell engine and an accessory module, and an air conditioner and waste heat recovery system integrated sub-module. The energy storage system is arranged with a side-hung hydrogen bottle sub-module, a rear hydrogen bottle sub-module, a multi-in-one controller integrated sub-module, a high-voltage accessory integrated sub-module, a low-voltage accessory integrated sub-module and a power battery sub-module. The driving system adopts an electric drive axle module integrated scheme, and the electric drive axle module is integrated with a driving motor, a motor controller, a transmission and a drive axle. The functions and structures of the sub-module systems are highly integrated, and the integrated and lightweight levels are high. The integrated arrangement of the modules is not restricted by market conditions, vehicle types, cab types and the like, and the universality and interchangeability levels of the components are greatly improved.

The application discloses a kind of hybrid harvester drive system and operation mode switching control method, it is related to agricultural new energy machinery technical field, the engine output end of this system is connected with transfer case, the first output end of transfer case is connected with gearbox and drive axle via ISG motor and clutch C1, and second output end is connected with operation mechanism via output PTO and clutch C2;ISG motor is connected with power battery via ISG motor controller.Electric motor and operation motor in motor assembly are connected with power battery via corresponding motor controller respectively, and electric motor drives drive axle, and operation motor independently drives operation mechanism.The application can realize pure mechanical, pure electricity, series charging and discharging and other various driving modes by the cooperation of engine and motor assembly, combined with the on-off control of clutch C1 and C2, meet the power demand under different operation scenarios, improve energy utilization efficiency, reduce energy consumption and emission, simplify transmission structure at the same time, improve system reliability.

The utility model discloses a four connecting rod rear drive integral bridge type suspension structure, including integral drive axle, two upper control arms, two lower control arms, transverse stabilizer bar, two spiral composite springs and frame. Upper control arm and lower control arm are arranged on the both sides of drive axle respectively in symmetry, and are hinged with frame and drive axle respectively, form spatial four connecting rod guiding mechanism, transverse stabilizer bar is along vehicle transverse setting and is connected with drive axle and frame respectively, spiral composite spring sets up between drive axle and frame, and shock absorber is coaxial with spiral spring arrangement. The structure has improved rear axle guiding precision and transverse stability on the basis of reserving integral bridge carrying capacity, has improved braking and turning posture, and has improved ride smoothness and comfort.

The application discloses a main speed reducer shell of an automobile driving axle, which comprises a shell provided with an oil channel structure, wherein a reduction working cavity and an output working cavity are formed in the shell, the oil channel structure supplies, collects and returns oil to the reduction working cavity, and an oil return port of the oil channel structure is communicated with the output working cavity; the reduction working cavity is divided into an input shaft chamber and an output shaft chamber, and the oil channel structure comprises a first oil hole, a tangential drainage plate, an oil collecting bag, a through oil channel and an oil return channel which are arranged on the shell; an outlet of the first oil hole is communicated with an inlet above an output shaft chamber shaft seat surface, and the tangential drainage plate is arranged at the outlet of the first oil hole and is tangent to a rotating working surface in the output shaft chamber. On the basis of ensuring lubricating effect, the speed reducer shell greatly reduces oil consumption, and the excess lubricating oil can be circulated, distributed and reused, thereby improving grease utilization rate and reducing high production cost caused by opening and grooving in independent oil supply.

This application relates to a suspension system, vehicle, and control method with adjustable drive axle tilt angle. The suspension system includes a frame, a tilt sensor, and a controller. A middle axle assembly and a rear axle assembly are spaced apart at the bottom of the frame. A crossbeam is provided between the middle axle assembly and the rear axle assembly, and the crossbeam is fixed to the frame. The middle axle assembly is connected to the bottom of the crossbeam via a first lower thrust rod, and the rear axle assembly is connected to the bottom of the crossbeam via a second lower thrust rod. The tilt sensor is disposed on the middle axle assembly and the rear axle assembly, and is used to measure the tilt angle of the middle axle and the tilt angle of the rear axle. The controller is signal-connected to the tilt sensor. A hydraulic unit is provided in both the first and second lower thrust rods, and the hydraulic unit is signal-connected to the controller. The controller is used to adjust the opening of the hydraulic unit according to changes in the tilt angle of the middle axle and the tilt angle of the rear axle, thereby changing the length of at least one of the first and second lower thrust rods.

The present application relates to the technical field of noise diagnosis, in particular to a method and device for identifying abnormal sound source applied to a vehicle transmission system, the method comprising: acquiring abnormal sound noise data, and confirming an abnormal sound generation period according to the abnormal sound noise data; acquiring transmission system vibration data, and performing time-frequency domain analysis on the transmission system vibration data and the abnormal sound noise data according to the abnormal sound generation period to obtain abnormal sound time domain data; the transmission system vibration data is obtained by vibration detection of the vehicle transmission system at a previous time; performing cross-correlation identification of the abnormal sound source according to the abnormal sound time domain data to obtain an abnormal sound source identification result; the abnormal sound source identification result is used to represent that the abnormal sound source is a gearbox and / or a drive axle. By considering the state of strong coupling connection between the gearbox and the drive axle in the vehicle transmission system, cross-correlation analysis is performed on the abnormal sound time domain data to identify the abnormal sound source, thereby improving the accuracy of identifying the abnormal sound source of the vehicle identification system.

The application relates to the technical field of new energy vehicles and vehicle detection equipment, and discloses a portable device for heavy truck axle housing liquid level measurement, which is suitable for electric drive axle and traditional drive axle. The device comprises a shell support structure, an electronic control assembly, a posture adjusting execution mechanism, a quick locking connection mechanism and a liquid level measurement assembly; the shell support structure is used for supporting the device and stretching and retracting the measurement assembly; the electronic control assembly is used for power supply, control and result display; the posture adjusting execution mechanism is used for adjusting the posture of the measurement assembly to keep it vertical; the quick locking connection mechanism is used for quickly fixing the device and the oil filling hole of the axle housing; and the liquid level measurement assembly realizes liquid level detection by cooperating a magnetic float and a Hall sensor. The application takes into account the application requirements of the electric drive axle and the traditional drive axle, and can especially meet the requirements of the electric drive axle on liquid level detection precision and reliability.

The utility model discloses a variable load road roller, it includes frame and sets up the walking mechanism and load adjusting mechanism in the lower part of frame, wherein walking mechanism includes the front drive axle of hinged connection in the bottom of frame front side and the rear drive axle of hinged connection in the bottom of frame rear side, and load adjusting mechanism includes the multiple groups of loading wheel of setting between front drive wheel and rear drive wheel, and loading wheel hinged connection is established on the support axle, and the end of this support axle is hinged fixed on the rocker and crank, wherein the other end of crank is hinged connection with the crank axle of setting on one side of support axle, and the crank axle is hinged connection with the hinged seat of installing on the frame, and the other end of rocker is hinged connection with the loading cylinder telescopic end of setting on the other side of support axle, and loading cylinder is hinged installed on the frame through hinged seat, and the loading wheel can be through the control loading cylinder action to realize to the pressure intensity of carrying out to the road surface through the road surface rolling pressure belt, and then realizes the quick adjustment of road roller to the ground pressure intensity.

This utility model belongs to the field of lubrication and sealing of drive axles in engineering machinery, and in particular, a semi-sealed lubrication structure for the front-stage reduction gearbox of an engineering machinery drive axle. It includes a connecting housing for the front-stage reduction gearbox, the exterior of which is connected to the main reducer via a bearing housing. Inside the connecting housing and the main reducer, a spiral bevel gear pair is installed for power transmission. A bearing is located between the spiral bevel gear pair and the bearing housing, and an internal gear ring is fitted onto the spiral bevel gear pair. An oil retainer ring is provided within the oil reservoir, comprising an annular portion and a cylindrical portion. The annular portion covers the lubricating oil hole, and the cylindrical portion abuts against the gear ring portion of the internal gear ring. This utility model adopts a semi-closed cavity structure, where the axle oil and the primary transmission oil are not completely isolated, achieving a certain heat dissipation effect. Simultaneously, it retains a semi-isolated oil cavity, preserving the fluidity of the lubricating oil. The structure is simple and the cost is low.

The utility model discloses an integrated drive axle for electric motorcycle relates to electric motorcycle technical field, including bridge body, wobbler, brake, wheel hub flange, the differential, axle shaft, wheel hub flange, brake, bridge body, wobbler constitutes integrated drive axle. The utility model provides integrated drive axle, and bridge body adopts aluminium alloy or other light alloy material, and the weight of traditional steel rear axle can greatly reduce. Electric motorcycle frame is connected with drive axle through wobbler and is used as whole vehicle suspension. The utility model discloses an integrated drive axle, and bridge body adopts aluminium alloy or other light alloy material, and the weight of traditional steel rear axle can greatly reduce. Electric motorcycle frame is connected with drive axle through wobbler and is used as whole vehicle suspension. The utility model discloses an integrated drive axle, and bridge body adopts aluminium alloy or other light alloy material, and the weight of traditional steel rear axle can greatly reduce. Electric motorcycle frame is connected with drive axle through wobbler and is used as whole vehicle suspension. The utility model discloses an integrated drive axle, and bridge body adopts aluminium alloy or other light alloy material, and the weight of traditional steel rear axle can greatly reduce. Electric motorcycle frame is connected with drive axle through wobbler and is used as whole vehicle suspension. The utility model discloses an integrated drive axle, and bridge body adopts aluminium alloy or other light alloy material, and the weight of traditional steel rear axle can greatly reduce. Electric motorcycle frame is connected with drive axle through wobbler and is used as whole vehicle suspension. The utility model discloses an integrated drive axle, and bridge body adopts aluminium alloy or other light alloy material, and the weight of traditional steel rear axle can greatly reduce. Electric motorcycle frame is connected with drive axle through wobbler and is used as whole vehicle suspension.

An embodiment of the present invention provides a drive axle assembly, including: a hub; a hub bearing assembled on the hub, including an outer wheel, an inner wheel, and balls between the outer wheel and the inner wheel; a sealing portion disposed between the outer wheel and the inner wheel for sealing the space where the balls are disposed; and a dustproof ring disposed on the inner wheel, facing the outer end of the sealing portion.

The application discloses a kind of transmission shaft drop-off automatic brake device and system in heavy truck parts technical field, including power assembly, power assembly end rotational speed sensor, transmission shaft, anti-grounding hanger, drive axle end rotational speed sensor, drive axle, central processing unit and solenoid valve;The anti-grounding hanger is installed on vehicle frame and located below transmission shaft;The application is by setting power assembly end rotational speed sensor in power assembly end, setting drive axle end rotational speed sensor in drive axle end, and by central processing unit to the rotational speed signal of two ends is handled, when detecting that transmission shaft operating state is abnormal, by solenoid valve control vehicle braking system brakes, simultaneously setting anti-grounding hanger located below transmission shaft on vehicle frame, to realize the monitoring of vehicle transmission shaft operating state, brake control and to the structure limit of transmission shaft position.

This disclosure relates to a vehicle control method, apparatus, storage medium, and vehicle, specifically in the field of vehicles. The vehicle includes multiple drive axles. The method includes: acquiring operating data of the drive motors of each drive axle; the operating data includes at least one of motor torque, motor speed, and motor temperature; determining the equivalent operating mileage of the drive motor based on the actual operating mileage of the vehicle and the operating data, thus obtaining multiple equivalent operating mileages corresponding to each drive axle; determining the allocated torque for each drive motor based on the vehicle's required torque and the multiple equivalent operating mileages; and controlling the multiple drive motors to output their corresponding allocated torques to drive the vehicle. Distributing torque to the drive motors based on the equivalent operating mileage of each drive axle effectively maintains a balanced lifespan for each drive motor, reducing the vehicle's lifespan costs.

The present application belongs to the technical field of bridge horizontal rotation construction, and particularly relates to a motor-driven bridge horizontal rotation steel wire rope transmission structure, which comprises a lower rotary disc, an upper rotary disc rotatably arranged at the top end of the lower rotary disc, at least one driving mechanism fixedly arranged at the top end of the lower rotary disc, the driving mechanism being arranged on the outer side of the upper rotary disc, and at least one traction rope mechanism fixedly wound around the outer side of the upper rotary disc through an anchoring mechanism, the traction rope mechanism being wound around the driving end of the driving mechanism in the following two ways: one traction rope mechanism is wound around the driving end of a plurality of driving mechanisms in sequence; and one traction rope mechanism is wound around the driving end of one driving mechanism. The power of the driving motor is applied to the rotary disc structure through the traction steel wire rope, so that the bidirectional controllable driving of the rotary disc structure is realized. The structure is compact, the space requirement of the rotary disc is reduced, and the shortcomings of the prior driving system, such as large space occupation, difficulty in reverse adjustment after over-rotation and non-reusable traction rope, are effectively overcome.

The application discloses a differential control method of an electric drive axle, real-time collection of vehicle operation parameters, judgment of whether the vehicle exists steering, if the vehicle is judged to not exist steering, the speed difference of the middle axle motor and the rear axle motor is obtained, when the speed difference is less than a first lower threshold, it is judged that there is no inter-axle differential speed, when the speed difference is greater than a first upper threshold, it is judged that there is inter-axle differential speed, the acceleration of the middle axle motor and the rear axle motor is calculated according to the collected vehicle operation parameters, if the acceleration of the middle axle motor and the rear axle motor is less than a second lower threshold, the torque control mode is maintained, the middle-rear axle torque distribution is adjusted according to the whole vehicle parameters, and the inter-axle differential speed is prevented; if the acceleration is greater than the second upper threshold, the speed control mode is used to prevent the inter-axle differential speed.

This invention discloses a general layout structure for a pure electric tractor in the field of pure electric vehicle structure, comprising: an electronic control system, including a vehicle controller, a battery management system, a three-in-one controller, and a motor controller; a cooling system; a drive system, including a drive motor and the motor controller; an axle system; a power system, including a power battery pack and the battery management system; a steering system; a braking system; and a suspension system. The general layout structure for the pure electric tractor provided by this invention integrates the drive motor directly inside the wheel of the drive axle, reducing the intermediate structures of traditional vehicles and thus effectively improving energy transfer efficiency. By employing a series connection between systems and components, the overall structure achieves lighter weight and simplification compared to traditional vehicle connection methods.

The application discloses a multifunctional field management machine, which comprises a front frame, a front drive axle, an engine, a gearbox, a rear frame, a rear drive axle, a first axle seat, a rotating shaft, a transmission shaft and a steering oil cylinder; the front drive axle is arranged on the front frame; the engine is arranged on the front frame; the gearbox is arranged on the front frame and is in transmission connection with the engine; the rear drive axle is arranged on the rear frame; the first axle seat is arranged on the front frame; the rotating shaft is parallel to the frame plane of the front frame, the rotating shaft is arranged on the rear frame, the rear frame is in transmission connection with the first axle seat through the rotating shaft, the rear frame can rotate around the rotating shaft to adapt to uneven ground; the gearbox is in transmission connection with the front drive axle and the rear drive axle through the transmission shaft, the transmission shaft spans the hinged part of the front frame and the rear frame; one end of the steering oil cylinder is connected with the front frame, the other end is connected with the rear frame, and the steering oil cylinder is used for driving the rear frame to steer relative to the front frame. The application solves the technical problem that the existing field management machine cannot adapt to the terrain when working on uneven ground.

1. The name of the design product: the middle wheel drive axle head. 2. The use of the design product: located at both ends of the drive axle housing, used for the overall assembly of the drive axle, supporting the rotation of the wheel and transmitting torque, ensuring that the power is effectively driven from the transmission system to the wheel. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The application belongs to the technical field of drive axle housing processing, in particular to a polishing equipment and method for forklift drive axle housing processing, which comprises a support table group, the upper end of the support table of the support table group is provided with a sliding rail, the surface of the two sliding rails is slidably connected with a rotating mechanism, the upper end of the rotating mechanism is placed with a drive axle housing, the protruding part of the middle position of the drive axle housing is attached with a polishing mechanism, one side of the support table of the support table group is provided with a mechanical arm, and the end of the mechanical arm is clamped and connected with the upper end of the polishing mechanism. The polishing equipment is provided with the polishing mechanism, the circular cover is completely adapted to the protruding part of the drive axle housing, the mechanical arm drives the high-speed rotation of the circular cover, the relatively cheap sandpaper is used for polishing, the sandpaper is easy to be manufactured into a shape suitable for the circular cover, the spherical structure of the sandpaper reduces the polishing time of the protruding position in the middle of the drive axle housing without changing the polishing effect, improves the polishing efficiency, and is convenient for replacing the waste sandpaper.

Wet-running drive axle with integrated parking and driving brake, characterized in that it comprises an electric motor (1), axle housing (2), a differential (3) and hub assemblies (6), wherein two axle housings (2) are arranged on both sides of the electric motor (1) and both ends of a motor shaft (11) of the electric motor (1) project into the two axle housings (2), wherein one end of the motor shaft (11) is connected to the differential (3) rotatably mounted in the axle housing (2) and a parking brake assembly (4) is arranged between the other end of the motor shaft (11) and the axle housing (2), wherein a driving gear shaft (71) is rotatably mounted in each of the two axle housings (2), wherein the two driving gear shafts (71) are each connected to the differential (3), wherein the differential (3) transmits the driving force of the electric motor (1) to the driving gear shafts (71) respectively. transfers;wherein two hub assemblies (6) are each arranged in the two axle housings (2); wherein each hub assembly (6) comprises a sun gear shaft (61), a planet carrier (63), planet gears (62), a driven gear (64) and a ring gear (69), wherein the ring gear (69) is fixedly arranged in the axle housing (2) and surrounds the planet carrier (63), wherein the planet carrier (63) is rotatably connected to the axle housing (2) and one end of the planet carrier (63) projects out of the axle housing (2) and serves as a wheel hub, wherein the several planet gears (62) are arranged about the axis of the planet carrier (63) and are rotatably mounted on the planet carrier (63) and are arranged inside the ring gear (69) and mesh with the ring gear; wherein the sun gear shaft (61) is rotatably connected to the axle housing (2) and one end of the sun gear shaft (61) engages with several planet gears (62) and meshes with these planet gears;wherein the driven gear (64) is fixedly arranged on the sun gear shaft (61) and meshes with the driving gear shaft (71); wherein one end of the sun gear shaft (61) projects into the planet carrier (63) and is rotatably connected to it, and a driving brake assembly (5) for carrying out braking is arranged between the other end of the sun gear shaft (61) and the axle housing (2).

Method for operating an electric drive device (1) for a motor vehicle during towing, in which a drive electric motor (2) is directly coupled to a drive axle (3); with a high-voltage electrical system (4) for operating the drive electric motor (2); with a parking locking device (5) by means of which the drive axle (3) can be locked in the parked position; with a short-circuiting device (7) by which the drive electric motor (2) can be short-circuited; with a cooling device (6) for cooling the drive electric motor (2) and the short-circuiting device (7);- characterized in that- the short-circuiting device (7) comprises a temperature sensor (8) for detecting its operating temperature, wherein- when the parking lock device (5) is actuated for the purpose of unlocking it, it is checked whether the high-voltage electrical system (4) is in proper working order and, in this case, the parking lock device (5) is unlocked and the short-circuiting device (7) is activated, wherein the activated short-circuiting device (7) short-circuits windings of the drive electric motor (2) to create an active short circuit; and- furthermore, the temperature sensor (8) is continuously monitored and the short-circuiting device (7) is deactivated if the temperature sensor (8) detects an impermissibly high temperature, wherein the deactivated short-circuiting device (7) leaves the windings of the drive electric motor (2) open.;

A motor vehicle transmission (3) includes a drive shaft (6), an output shaft (7), and a first planetary gear set (P1), a second planetary gear set (P2) and a third planetary gear set (P3). The drive shaft (6) is provided for coupling to at least one drive engine. Furthermore, exactly one first shifting element (B) and one second shifting element (A) are provided, at least functionally, for the representation of different force flow paths between the drive shaft (6) and the output shaft (7) via the planetary gear sets (P1, P2, P3). The invention also relates to a drive unit (1), an electrically driven motor vehicle drive axle, a hybrid or electric vehicle and a method for operating a motor vehicle transmission.

This application relates to a drive axle for a beam transport vehicle, comprising: an electric drive axle housing, the axle housing having a central section for accommodating and mounting a differential, and the electric drive axle housing having equalizing cylinder mounting seats, lateral stop seats, and longitudinal stop seats located on the left and right sides of the axle housing; and an electric drive assembly, comprising an integrated housing connected to the axle housing, within which a reducer and a drive motor are mutually connected, the output end of the reducer being connected to the differential. This application's electric drive assembly features an integrated housing connected to the axle housing, with a reducer and drive motor mutually connected within the integrated housing. After integration of the electric drive assembly and the electric drive axle housing, the beam transport vehicle can be configured with the number of drive axles according to transportation needs. The modular design of the beam transport vehicle provides strong equipment adaptability, avoids the impact of centralized transmission system failures on the overall vehicle operation, and improves the reliability of the beam transport vehicle.

This utility model belongs to the field of vehicle drive technology, and in particular relates to a multi-input / output coupling mechanism for a fuel cell hybrid tractor. The structure includes a fuel cell (24), a DC / DC unidirectional converter (25), a second motor (26), a planetary gear system, a hydraulic system, a drive axle (30), a brake (18), a clutch (5), a first motor (22), and a power battery (23). This utility model combines a continuously variable transmission (CVT) device and a power coupling device. The CVT device and the power coupling device share a planetary gear system. The planetary gear system can both change speed and achieve power coupling, reducing transmission links, saving manufacturing costs, saving vehicle space, and improving energy utilization.

The utility model discloses a kind of hydraulic differential lock executor arrangement structures for drive axle, its characteristics are, by differential lock cylinder, hydraulic oil pipe joint, small piston, small piston O-ring, big piston, big piston O-ring, return spring, yoke, differential lock signal switch, reducer shell composition;Differential lock cylinder is connected with reducer shell;Hydraulic oil pipe joint and differential lock signal switch are equipped on differential lock cylinder, and small piston is equipped in the piston hole of differential lock cylinder;Big piston is equipped in the piston hole of reducer shell;Big piston is sleeved with yoke and return spring, return spring one end and yoke end surface contact, the other end and reducer shell end surface contact;With simple structure, hydraulic oil and gear oil independent sealing, high reliability, oil leakage identifiable and the like characteristics;It is suitable for using hydraulic control differential lock work's drive axle assembly.

The utility model discloses a full floating rear axle suitable for light passenger vehicle, including drive mechanism, drive axle housing, half axle and wheel hub connecting unit, drive axle housing is located at drive mechanism both sides, and half axle rotates and is located in drive axle housing, and half axle is away from drive mechanism one end and is equipped with wheel hub connecting unit, and wheel hub connecting unit is connected with outside wheel rim, and the inboard of wheel hub connecting unit is equipped with brake disc, and the central position of brake disc is equipped with bearing seat, and bearing seat is equipped with bearing in, and bearing sleeve is connected in the outer periphery of half axle, and the right side of bearing seat is equipped with first flange, and first flange is connected with inboard wheel rim. The utility model has the beneficial effects that: solve the problem that traditional light passenger vehicle half floating rear axle half axle is easy to fatigue, and the problem of fracture is solved, and the durability and reliability are improved, and the brake efficiency and stability, the adaptability of complex working condition are improved, and the integration design of drive mechanism improves the power transmission efficiency, and the demand of light passenger vehicle to load, safety, maintenance and performance is considered as a whole.

A brake device for an electrically operatable axle drivetrain of a motor vehicle includes a hydraulic disengaging system comprising a central disengaging element which actuates a friction device such that the friction device operates in a braking or non-braking state. The central disengaging element has a central disengaging element housing comprising a central disengaging element piston chamber in which a central disengaging element piston is received in an axially movable manner by means of a hydraulic liquid. The central disengaging element has at least one central disengaging element piston seal which seals off the central disengaging element piston from the central disengaging element piston chamber, and the central disengaging element and the friction device are received in a brake housing, the brake housing including a first pot-shaped housing part and a second lid-shaped housing part which at least partly covers the first pot-shaped housing part.