647results about "Slack adjusters" patented technology

The invention discloses an electromagnetic disc brake with a gap automatic compensation function, and relates to the technical field of electromagnetic disc brakes, the electromagnetic disc brake comprises a mounting base and a connecting shell, one side of the mounting base is provided with a shell, an electromagnet is mounted in the mounting base, one side of the electromagnet is provided with an armature, and the armature is connected with the shell. One side of the armature is connected with multiple sets of reset springs, and one end of each reset spring is fixed to the inner side of the shell. According to the electromagnetic disc brake with the gap automatic compensation function, the gap between the armature and the electromagnet can be detected through the microswitch, and when the gap exceeds the range, the thin hydraulic cylinder can be started to drive the hydraulic plunger head to push the armature to move, so that the gap between the armature and the electromagnet returns to normal, and compensation is completed; the sealing mechanism can prevent external dust from making contact with the armature and other components, so that the braking effect is kept, and the heat dissipation mechanism can dissipate heat of the braked components.

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 provides a running-in method of an adjuster in a gap self-adjusting mechanism, and belongs to the technical field of machinery. The problem that due to the fact that the coaxiality of a main shaft, a neck bush and a transmission gear is poor, slipping torque has large fluctuation is solved. The method comprises the steps that A, a main shaft, a neck bush and a transmission gear are installed on a tool by simulating the actual assembly condition, the tool is vertically installed on a supporting base in a sliding mode, a supporting spring is arranged on the supporting base, and the upper end of the supporting spring abuts against or indirectly abuts against the lower end of the transmission gear; and B, the tool is jacked downwards through a jacking mechanism, a torque output mechanism is used for driving the main shaft to rotate, and a torque sensor is used for monitoring the slipping torque between the neck bush and the transmission gear till the fluctuation value of the slipping torque between the neck bush and the transmission gear in the set number of turns is smaller than a set value. The device has the advantages that the coaxiality of the main shaft, the neck bush and the transmission gear can be well guaranteed, and the fluctuation of the slipping torque between the neck bush and the transmission gear is small.

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.

The invention concerns a brake pad (10) for a disc brake caliper, the pad (10) comprising a support plate (11). According to the invention, the support plate (11) has cooling fins (17), thus creating a convection zone (16).

The invention relates to a brake disc (1) for a motor vehicle, the brake disc (1) comprising an inner hub (11) intended to be coupled to a wheel hub, an outer flange (12) extending radially around the inner hub (11), the outer flange (12) forming a friction surface intended to collaborate with a complementary clamping member of the brake disc (1), a ventilation device configured to facilitate the cooling of the outer flange (12), the ventilation device comprising a plurality of grooves (13) extending along the outer flange (12), each groove (13) opening on either side of the outer flange (12) relative to an axis of rotation (O1) of the disc brake. According to the invention, each groove (13) has an air flow direction inclined relative to the axis of rotation (O1), so that the ventilation direction (DV) forms a non-zero angle with the axis of rotation (O1).Figure to be published with the abstract: Fig. 1.

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 utility model provides a spiral mandrel of an adjusting arm, and belongs to the technical field of automobile accessories. The adjusting arm spiral mandrel solves the problem that an existing adjusting arm spiral mandrel is high in use cost. The adjusting arm spiral mandrel comprises a mandrel body, the bottom of the outer portion of the mandrel body is sleeved with spiral teeth, the top of the mandrel body is connected with a positioning disc, the two sides of the top of the positioning disc are connected with a cooling liquid inlet pipe and a cooling liquid outlet pipe respectively, and the tops of the outer portions of the cooling liquid inlet pipe and the cooling liquid outlet pipe are movably sleeved with connecting pipes through bearings. A plurality of connecting inserting grooves are formed in the top of the exterior of the shaft body, the top of the exterior of the shaft body is sleeved with a transmission part, the transmission part comprises a plurality of connecting inserting strips, the exteriors of the connecting inserting strips are jointly connected with a gear sleeve, and a plurality of positioning bolts are arranged at the top and the bottom of the exterior of the gear sleeve. The sides, close to each other, of the multiple positioning bolts penetrate through the gear sleeve and the connecting insertion strip, and a cooling liquid flowing cavity is formed in the shaft body. The adjusting arm spiral mandrel has the advantages of low use cost and the like.

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 provides a thrust conversion structure for a brake-by-wire system. The thrust bearing assembly is sequentially provided with a supporting disc, a rolling body and a driving disc from front to back, and the supporting disc and the driving disc are provided with roller paths which are matched with the rolling body and have variable depths. The driving disc is provided with an internal thread; the screw rod is provided with an inner cavity and external threads, the inner cavity is provided with a spline hole, the spline hole is matched with a shaft with an external spline, and the external threads and the internal threads of the screw rod form thread pair matching; the piston can axially move, the front side of the piston is the rear end of the screw rod, and the rear end of the piston is used for abutting against the brake disc for braking. A sectional type propelling structure is adopted, when the first section is used for eliminating idle stroke, rotation is converted into linear motion through thread transmission, and when the second section is used for clamping, the rotation motion is converted into linear motion through the reinforcement bearing assembly; the transmission mode of the reinforcement bearing, the screw rod, the screw sleeve and the spline is adopted, so that the structural size of a product is greatly reduced.

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 floating-caliper brake (10) for a motor vehicle. The floating-caliper brake (10) comprises a brake caliper (14) which engages around a brake disc (18) and in which a brake actuator (22) is positioned in order to apply a braking force to a brake pad (26), the brake caliper (14) being mounted on at least one pin (30) so as to be movable in a pin axis direction (34). At least one pin (30) is positioned in a blind hole (38) of the brake caliper (14), and a chamber (58) is formed between a pin end (42) and a blind hole end (54), in which chamber a spring element (62) acting on the pin (30) in the pin axis direction (34) is arranged in such a way that a restoring force can be applied to the pin (30).

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.

An electromechanical brake device has a rotation-translation converter of short construction for moving a brake piston in an electromechanically operable wheel brake of a motor vehicle, and to a motor vehicle having an electromechanical brake device of this type. The electromechanical brake device comprises a caliper housing defining an actuator receptacle, an actuator unit having a piston movable in a linear manner relative to the caliper housing, wherein at least a portion of the actuator unit is arranged within the actuator receptacle, a drive unit to generate a drive torque which can be transmitted to the actuator unit, a rotation-translation converter of the actuator to axially shift the piston based on the drive torque; and at least one first rotation prevention device for securing against relative rotation between the piston and the actuator receptacle.

The utility model discloses a clearance self-adjusting drum-type forklift brake which comprises a brake drum, a brake shoe is installed at the front end of the brake drum, a brake wheel cylinder is installed at the upper position of the front end of the brake shoe, a sleeve is connected to the outer wall of a return spring in a sleeved mode, and the outer wall of the return spring is sleeved with a brake wheel cylinder. According to the device, a sleeve is connected to the outer wall of a return spring in a sleeving mode, when the return spring is stretched, the sleeve can rotate with a gear shaft rod as a circle center shaft, the gear shaft rod rotates in a gear groove, the gear shaft rod can rotate in the gear groove, and therefore the brake shoe can rotate in the gear groove; and meanwhile, the stretching of the return spring enables the upper supporting seat to generate displacement, the upper supporting seat moves along the connecting column, and the movement of the connecting column enables the pushing plate to extrude the stainless steel spring, so that the displacement amplitude of the return spring can be limited when the brake shoe is subjected to applied force, and the phenomenon that the return spring falls off is prevented.

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 present invention discloses an automatic adjustment drum brake for electric vehicles, which includes a brake chamber housing part, a friction shoe part, a camshaft, a rocker arm, a toggle mechanism, and an automatic adjustment mechanism. A friction shoe part is provided inside the brake chamber housing part, a tooth structure is provided outside the cam body, the toggle mechanism rotates the camshaft, the automatic adjustment mechanism stays in its original position, and slides and rotates at the same angle relative to the toggle mechanism. A reset spring is provided between the toggle mechanism and the brake chamber housing part, the toggle mechanism returns under the action of the reset spring, and the camshaft maintains its angle by adjusting the automatic adjustment mechanism. The toggle mechanism and the automatic adjustment mechanism are adjusted to fit the tooth structure provided outside the cam body by a ratchet wheel. This solves the problem that the gap between the shoe part and the wheel hub of the existing brake becomes large due to long-term wear, and the brake gap adjustment is not timely and accurate, and the hand feels heavy.

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.

The present invention provides an electromechanical brake caliper and brake system in the field of brake calipers. The electromechanical brake caliper includes an actuator, a motion conversion mechanism (4), and a brake caliper body (5). The actuator includes a casing body (1) and a motor (2) and a reduction gear mechanism (3) therein. The output shaft of the motor (2) is connected to the brake caliper body (5) via the reduction gear mechanism (3) and the motion conversion mechanism (4). The electromechanical brake caliper further includes an elastic return mechanism that stores energy during the brake clamping process and returns components connected to the brake caliper body (5) during the brake release process. The elastic return mechanism is installed in the transmission path of the brake caliper body (5). The electromechanical brake caliper replaces the rectangular seal ring of a hydraulic brake caliper and has a mechanical active return function, allowing the gap between the brake pad and the brake disc (17) to be maintained within a reasonable gap range.