434results about "Slack adjusters" patented technology

An apparatus for a brake drum of a vehicle having a drum brake assembly with first and second brake shoes includes a motor with a pinion gear. A ball screw assembly has a nut for receiving torque from the pinion gear and a spindle threaded with the nut. The nut is aligned with the first brake shoe and the spindle is aligned with the second brake shoe. The motor is actuatable for rotating the nut to move the nut and the spindle away from one another for moving the brake shoes to apply braking force to the brake drum during a braking event. A bi-stable locking mechanism selectively locks the motor to prevent torque transfer from a back-driving ball screw assembly to the motor.

A method of controlling an electro-mechanical brake device, includes: switching a central electronic control unit (ECU) to an awake mode based on a wake-up signal; transmitting a signal such that a wheel ECU is switched from a sleep mode to the awake mode; when a braking input is detected, supplying a current to a motor mounted on an electro-mechanical brake (EMB) using current control to generate a braking force; when a parking braking force is less than a required braking force, controlling the wheel ECU to release the parking braking force and generate the required braking force, and when the parking braking force is greater than or equal to the required braking force, releasing the parking braking force and maintaining the braking force generated in a wheel; when the braking force reaches the required braking force or the braking force is maintained, switching the current control to position control.

A brake apparatus may include a rotary member, a friction member configured to apply a frictional force to the rotary member, an electric actuator configured to move the friction member, a clamping force detection member configured to detect a clamping force in accordance with contact between the rotary member and the friction member, and a controller configured to control an operation of the electric actuator, in which the controller determines a reference position on the basis of a position of the friction member at a time point at which the rotary member and the friction member are separated, determines a clearance between the rotary member and the friction member on the basis of the detected clamping force on the basis of the reference position, and control the movement of the friction member on the basis of the clearance.

The invention relates to a device (100) for heat distribution for a motor vehicle (200). The device (100) comprises a fuel cell (1), a braking resistor (2) for converting electrical energy into heat energy, and a temperature control circuit (10) through which a temperature control fluid flows for temperature control of the fuel cell (1) and the braking resistor (2). The temperature control circuit (10) is thermally coupled to the fuel cell (1) and the braking resistor (2) and has a main heat exchanger (14) through which air can flow and a switchable auxiliary heat exchanger (16), preferably also through which air can flow, such that preferably the fuel cell (1) and the braking resistor (2) can be thermally coupled via the temperature control circuit (10) either to the main heat exchanger (14) and auxiliary heat exchanger (16) or only to the main heat exchanger (14), wherein: The temperature control circuit (10) has a piping system (11) and a valve assembly (13) in the piping system (11), wherein the valve assembly (13) is adjustable to several different settings for adjusting the flow of the temperature control fluid within the temperature control circuit (10), including: a high-load setting in which both the main heat exchanger (14) and the auxiliary heat exchanger (16) can be supplied with the temperature control fluid, wherein in the high-load setting the main heat exchanger (14) and the auxiliary heat exchanger (16) can be connected either in parallel or in series to each other, preferably by means of the valve assembly (13).

To provide a brake caliper capable of coping with wear of a brake pad.SOLUTION: By having the sleeve member 65 and the bolt member 68 in threaded engagement with each other and adapted to be actuated by the brake lever means 6 to move the first brake pad 41 towards the brake rotor, wherein the bolt member 68 is adapted to rotate and move relative to the sleeve member 65 when the first brake pad 41 is moved by the piston means actuated by the brake pedal, the travel distance required for the bolt member 68 driven by the brake lever means 6 to perform its braking function remains substantially the same even if the amount of wear on the brake pads increases.SELECTED DRAWING: Figure 4

A brake caliper (1) includes a housing unit (2), a piston unit (3) having a piston (31) disposed in the housing unit (2), a brake unit (4) including first and second lining members (41, 42) disposed at two sides of a brake disc (10), and a hand-brake unit (6) including a driving member (61), a threaded socket (65) driven by the driving member (61), and a threaded shaft (68) threadedly engaged with the threaded socket (65) and connected with the piston (31). In a foot-braking operation, the threaded shaft (68) is rotated relative to the threaded socket (65) to actuate the piston (31) to move away from the threaded socket (65), and the piston (31) presses the first lining member (41) against the brake disc (10). Thus, the travel stroke of operation of the hand-brake unit (6) may be automatically compensated by the foot-braking operation.

A method for electronic air gap control of an electrical motor vehicle brake system comprises electrical wheel brakes, wherein a resting position is adopted and maintained by supplying electric energy. Mechanical elements for adjusting the resting position can thus be dispensed with. Furthermore, an electrical motor vehicle brake system comprising electrical wheel brakes for carrying out such an electronic air gap control method is described.

The utility model relates to the technical field of automobile brake discs, and provides an automobile brake disc assembly which comprises a friction disc, a joint, a plurality of torque transmission pins and a plurality of bolts, a heat insulation gasket is arranged between the friction disc and the joint, and the torque transmission pins are sequentially connected with the joint, the heat insulation gasket and the friction disc in an inserted mode. A pressing cap of the torque transmission pin abuts against the surface of the combining head, the bolt penetrates through the torque transmission pin, a nut of the bolt abuts against the end face of the pressing cap of the torque transmission pin, and a nut of the bolt abuts against the surface of the friction disc. The heat insulation gasket is arranged between the friction disc and the joint, so that heat directly conducted to the joint is effectively reduced, and a certain protection effect on the joint is achieved.

The application relates to the field of brake devices, in particular to a brake device for a vehicle braking system, which comprises a shell installed on a vehicle wheel hub, a support fixedly installed on the shell, a hydraulic oil cavity opened in the shell, an execution part arranged between the hydraulic oil cavity and the support, a self-compensation mechanism arranged between the hydraulic oil cavity and the execution part, the self-compensation mechanism comprising a magnetic attraction assembly, the magnetic attraction assembly comprising a wear piece clamped with the execution part, the magnetic attraction assembly being used for clamping and fixing the execution part before the execution part is worn to the point that the wear piece is completely consumed, and the magnetic attraction assembly being used for releasing the clamping of the execution part after the wear piece is completely consumed; a compensation assembly, the compensation assembly being used for pushing the execution part to move to the side close to a brake disc of the vehicle wheel hub for compensation after the magnetic attraction assembly releases the clamping of the execution part; and a locking assembly, the locking assembly being used for locking and fixing the execution part after the compensation of the execution part is completed.

The invention relates to a rail vehicle brake, in particular for freight wagons, comprising a monitoring device and to a method for monitoring a rail vehicle brake. A rail vehicle brake (1), in particular for freight wagons, has a brake lever (1a) comprising a brake shoe (5), a brake cylinder (3), a lever adjuster (4) and a monitoring device (10). The monitoring device (10) has a detection unit (7, 7a, 7b, 7c, 7d, 8, 9) comprising corresponding sensors (71, 72, 73, 74, 75, 77, 81, 82, 90) which are formed by access to an electrical energy supply network of a rail vehicle to be equipped with the supply of electrical energy. A rail vehicle and a method for monitoring a rail vehicle brake (1) are provided.

A tensioning module for an electromechanical wheel brake and to an electromechanical brake device comprises a stop bearing washer; an axial bearing; and a ball screw drive. The the ball screw drive comprises a spindle and a nut. The stop bearing washer is arranged at an axial end of a radial extension of the spindle, An anti-rotation safeguard arranged between the nut and a housing surrounding the tensioning module. The tensioning module is used to move a brake piston in the electromechanically operable wheel brake of a motor vehicle.

The present invention relates generally to an adjustment mechanism for axially adjusting a pressure element by means of a drive shaft. The pressure element can be a brake piston of an electromechanically operated wheel brake of a motor vehicle. The invention also relates to a method for operating such an adjustment mechanism.

The application relates to the field of brakes, and discloses a whole fixed caliper and a sand mold, which adopts a casted and integrally formed caliper body (200), the caliper body (200) is at least formed with a caliper opening (201) for extending a brake disc into the inside of the caliper body (200), the opening side of the caliper opening (201) is a caliper opening (201) side (114), and the side corresponding to the caliper opening (201) side (114) of the caliper opening (201) is a caliper back side (113); the caliper body (200) comprises an inner caliper body (204) at the inside of the caliper opening (201), an outer caliper body (200) at the outside of the caliper opening (201), and a connecting body connecting the inner caliper body (204) and the outer caliper body (200) at the two sides of the caliper opening (201). The brake has the advantages of convenient installation, reliable return of a return mechanism and the like.

The utility model relates to the technical field of automobile brake pumps, in particular to an efficient heat dissipation automobile brake pump which comprises a brake pump body, a plurality of first cooling fins are arranged on the surface of the brake pump body in the front-back direction, and the surface of the brake pump body is connected with a ventilation hood through a plurality of second installation blocks. A semiconductor chilling plate is arranged on the inner wall of the rear portion of the ventilation hood, a second fan is rotationally connected to the inner wall of the ventilation hood through two second fan supports, a shielding block is arranged at the front end of the first mounting block, and a cold air control device is arranged outside the shielding block. After the semiconductor chilling plate is powered on, refrigeration can be conducted on the cold end face of the semiconductor chilling plate, when the brake pump body works, the second fan is started, and cold air can be blown out through the second fan. By means of the heat dissipation mode, corrosion of a shell of the brake pump body cannot be caused, and the service life of the brake pump cannot be affected.

A method of adjusting a brake, the method including the steps of: providing a mechanically operated brake including friction material, providing a rotor, providing an adjuster for adjusting a running clearance between the friction material and the rotor, providing a sensor system for determining a likelihood of a braking event, and upon a determination of a change in the likelihood of a braking event operating the adjuster to adjust the running clearance of the brake.

According to the multi-medium circulating system based on the hydraulic retarder, a large circulating oil way, a small circulating oil way and an exhaust passage are highly integrated on a retarder shell and a heat exchanger bottom plate, and the large circulating oil way and the small circulating oil way share a large circulating oil outlet channel, a small circulating oil outlet channel and a heat exchanger; an oil outlet exhaust passage, a large-small circulation oil outlet passage and a heat exchanger bottom plate covered channel form an independent exhaust passage, so that gas and oil media achieve efficient cooperation in large-small circulation and exhaust circulation, and meanwhile all-working-condition performance optimization of high torque precision and high continuous braking capacity under the braking working condition and low air loss and low temperature under the idling working condition is achieved. Meanwhile, the oil way is integrally formed on the inner side of the retarder shell, so that the sealing reliability and the structural strength of the system are remarkably improved; the oil leakage and oil pumping faults of the oil duct are completely eradicated from the source, the idling loss and the working temperature are remarkably reduced, the torque control precision is improved, the system integration degree and the operation reliability are improved, and cost reduction and efficiency improvement are achieved.

The invention discloses an adjustable equally-divided brake clearance electromagnetic brake motor, which comprises a rotor assembly and a brake assembly, and is characterized in that the rotor assembly is provided with a motor shaft rotatably mounted in a motor shell in a limiting manner; the brake assembly comprises a cover plate, a friction assembly, an armature, a brake coil, a magnet yoke, a reset spring and a brake spring, a reset spring is embedded between the friction assembly and the motor shaft, and the friction assembly can move towards the side close to the armature through resilience force of the reset spring. The magnet yoke and the cover plate are installed at a fixed distance, the armature is arranged between the magnet yoke and the friction assembly in an axially movable mode, the brake coil is arranged in an annular groove of the magnet yoke and located between the magnet yoke and the armature, and the armature and the friction assembly are close to or away from the magnet yoke by switching on and off the brake coil. And the friction assembly is limited through a first limiting part and a second limiting part at the tail part of the motor shaft, so that the friction assembly is located at a proper position. The problem of friction ring plate burning in the prior art can be effectively solved, and the replacement efficiency is improved.

A heat shield assembly comprising a plurality of heat shield components (300) each comprising a substantially C-shaped structure of heat shield material defining a substantially rectangular body having a top (310) and two opposing elongate side walls (320, 330) extending from respective opposite sides of the top to a bottom edge (340), the top and the side walls defining a substantially rectangular inner cavity to receive, in use, a rotor lug (110') on the periphery of a rotor disk (100') of a brake stack, each heat shield component further comprising flanges (360a, 360b, 360c, 360d) extending outwards from the bottom of the side walls at both sides and both ends of the heat shield component, and wherein the flanges are configured to allow overlap with a flange of an adjacent heat shield component, in use.

A disc brake, comprising a brake caliper (1) in which two brake pads (2) are arranged which can be pressed against a brake disc in operation, one of which, on the action side, can be actuated by means of a clamping device (3) via at least one axially adjustable adjusting spindle (4) carrying a pressure piece (5), and the adjusting spindle (4) is guided through an opening in a cover (7) that closes a receiving chamber of the brake caliper (1), forming an annular gap, wherein a sealing arrangement (12) is provided in the area of ​​the opening to seal the receiving chamber, which bears against the pressure piece (5) on one side and is held on the other side on the inside of an axially oriented collar (8) that circumferentially delimits the opening, wherein the sealing arrangement (12) has a bellows (10) and a concentrically arranged secondary seal (11), and the secondary seal (11) and the bellows (10) are formed in one piece, is designed such thatthat the secondary seal (11), which has a central opening and is more dimensionally stable than the bellows, has a circumferential shell which is attached to the inside of the collar (8) by friction or material interlock, wherein the bottom of the secondary seal (11), which is angled towards the shell, bears against the adjusting spindle (4) with its edge, which is formed as a bead (15) and defines the central opening, and the bellows (10) is connected to the pressure piece (5) by form-fitting, material interlock, or friction interlock with its end, which is formed as a thickening and is radially opposite to the shell.

An electric-powered road vehicle comprises two front wheels and two rear wheels; at least one battery; at least one electric machine configured to convert electrical energy to kinetic energy and vice versa. The electric machine is connected, on one side, to at least one battery and, on another side, to at least one of said wheels in such a way that during the running or acceleration of the vehicle, the electric machine converts incoming electrical energy arriving from the battery into kinetic energy to be transmitted to at least one of said wheels. At least one dissipative braking device converts the kinetic braking energy of at least one of said wheels into heat. A resistor device is connected to the electric machine and is configured to convert incoming electrical energy arriving from the electric machine into heat.

The utility model relates to the technical field of automobile brakes, in particular to a helical gear and worm self-adjusting type automobile brake clearance automatic adjusting arm which comprises a shell, a helical gear body and a worm body meshed with the helical gear body are installed in the shell, the shell comprises a connecting arm, a worm shell is installed on the connecting arm, and the worm shell is connected with the helical gear body. The worm shell is used for installing a worm body, one side of the worm shell is provided with a bevel gear shell in a communicating mode, and the bevel gear shell is used for installing a bevel gear body. A clockwork spring elastically installed with the worm body is installed in the worm shell, and the clockwork spring is used for limiting the worm body. The utility model has the advantage of automatically resetting the brake clearance, and solves the problem that the brake clearance is difficult to reset when the brake is frequent.

The present invention provides a braking resistor system (10) for a vehicle, comprising at least one electronic unit (13) including an inverter (12), power electronics and / or a control unit, and a high-load resistor unit (11) electrically coupled to the electronic unit (13) and having a housing (16), wherein the electronic unit (13) and the high-load resistor unit (11) are arranged adjacent to each other and are electrically coupled via a phase-carrying busbar (23), and wherein a cooling device (14) is provided for the joint cooling of the high-load resistor unit (11) and the electronic unit (13), as well as a vehicle with such a braking resistor system (10).

The application discloses a novel brake shoe device and relates to the technical field of brake shoes, which comprises a brake cover, a brake groove is formed in the inner side of the brake cover, a first arc-shaped brake shoe and a second arc-shaped brake shoe are arranged in the brake groove, an adjusting structure is connected to the left ends of the first arc-shaped brake shoe and the second arc-shaped brake shoe, an elastic structure is arranged between the first arc-shaped brake shoe and the second arc-shaped brake shoe, and a pushing structure is connected to the right ends of the first arc-shaped brake shoe and the second arc-shaped brake shoe. The application has the advantages of good braking effect, safety and stability, and strong practicability.

Typically, work machines, such as tractors and heavy-duty machinery, require brake cooling systems for maintaining the performance of work machines, especially during high-stress conditions like heavy braking. Common brake cooling systems can waste high amounts of energy. Accordingly, a brake cooling system, the system comprises: a brake set; a sensor configured to detect parameter values of a work machine; a machine controller that includes a processor configured to receive one or more parameter values from the sensor, convert the parameter values into a flow request, determine a pump desired speed required to supply the flow request, and generate a speed command; and a fluid flow circuit system including a power source and a pump coupled to the power source, the fluid flow circuit system in communication with the machine controller to receive the speed command and to actuate a fluid flow into the brake set in response thereto is disclosed.

In the prior art, an adjusting device is usually arranged in the middle of a pressing device, namely the central axis position of a single-push type disc brake, and due to the structure, a thrust arm, a threaded pipe and other components of the pressing device cannot bear large braking friction torque. The braking effect of the single-push disc brake and / or the clearance adjusting effect of the adjusting device are / is influenced. According to the single-push type disc brake, the adjusting device is arranged on one side of the pressing device and inserted into the adjusting shaft, and the multiple sets of components with the transmission function are arranged between the adjusting device and the pressing device and between the adjusting shaft and the pressing device. According to the single-push type disc brake, the thrust arm, the threaded pipe and other components of the pressing device can bear large braking friction torque, large torque can be transmitted to the friction lining, and the braking effect of the single-push type disc brake and / or the gap adjusting effect of the adjusting device are / is improved.

A brake caliper includes a caliper housing having a first cavity. A sleeve is disposed in the first cavity. The sleeve is reciprocally slidable relative to the caliper housing along an axial direction. The sleeve includes a second cavity. A piston is disposed in the second cavity. The piston is reciprocally slidable relative to the sleeve along the axial direction. A first seal is disposed between the sleeve and the caliper housing. A second seal is disposed between the piston and the sleeve.

Aspects of the present disclosure relate to a skewed roller impeller cage including a metallic ring with radially arranged slots in which rollers are positioned. Impeller shaped channels are defined around a top side of the cage to force fluid to circulate from an outer diameter of the cage to an inner diameter of the cage and vice versa. Cutouts defined at the inner diameter of the cage allow fluid to circulate from the top side of the cage to the bottom side due to centrifugal forces moving the fluid from the inner diameter back to the outer diameter of the cage to allow for continuous circulation of the fluid about the cage.

The present application relates to the technical field of hydraulic retarder, and particularly relates to an explosion-proof hydraulic retarder and a control method, which comprises a box, a rotor and a stator, the box is provided with an oil storage cavity for storing working oil, the rotor and the stator are provided with a working cavity in communication with the oil storage cavity, the box is provided with an air inlet and a plurality of air outlets, the air inlet is connected with an external air source to input compressed gas into the oil storage cavity, so that the working oil enters the working cavity, and the plurality of air outlets are used for combined exhaust to reduce the input amount of the working oil in the working cavity; the compressed gas input into the air inlet makes the working oil enter the working cavity to produce a retarding effect, then the exhaust of different air outlets is controlled to reduce the input amount of the working oil; since each air outlet is directly communicated with the oil storage cavity, when the exhaust valve acts, the air pressure in the oil storage cavity changes rapidly, and then the braking force of the retarder changes rapidly, so that the response speed is improved, and the use safety of the retarder is improved.