2846results about "Axially engaging brakes" patented technology

The invention provides an automobile brake caliper manufacturing method based on a selective laser melting additive manufacturing technology, which comprises the following steps: carrying out structural region division on a three-dimensional digital model, and formulating an SLM process parameter strategy of a structural region, the SLM process parameter strategy comprising adjustment of laser power, scanning speed, scanning spacing and powder layer thickness; according to a three-dimensional digital model of the brake calipers and an SLM process parameter strategy, additive powder is laid in a powder bed of SLM equipment, the surface of the powder bed is scanned layer by layer through high-power-density laser beams, powder particles are selectively melted, laser energy density input is controlled, thermophysical characteristics of powder materials are matched, microstructure evolution is controlled, and the brake calipers are manufactured. And after one layer is melted and solidified, the powder bed descends by the height of one layer thickness, a new powder layer is spread out, the process is circulated till additive manufacturing of the brake calipers is completed, and the effects of being light in weight, high in structural strength and good in heat dissipation effect are achieved.

An axle assembly comprising a differential carrier, a differential assembly, a drive pinion, and a drive pinion brake. The drive pinion brake is mounted to the differential carrier. The differential carrier supports the differential assembly. The drive pinion brake is operable to apply a brake torque to inhibit rotation of the drive pinion.

The present invention discloses a vegetable dehydrator, which includes a barrel body and an upper cover, wherein the upper cover is detachably engaged with a top of the barrel body, a dehydration basket and a separator plate are provided between the barrel body and the upper cover, a top of the dehydration basket is clamped and fixed with the separator plate, and a center of an inner bottom surface of the barrel body is provided with a limiting protrusion which supports and makes the dehydration basket to rotate freely on a tip of the limiting protrusion. According to the present invention, a knob and a driving mechanism are provided, hands are released after the knob is twisted, and a buckle fixed above the dehydration basket is driven by gears due to a tension of a tension spring, so that the dehydration basket can rotate.

Provided is an electromechanical brake system comprising an actuator of an electromechanical brake operated by a motor, the electromechanical brake system including: a motor driving unit configured to drive the motor; and a control unit configured to be electrically connected to the motor driving unit, wherein the control unit is configured to: calculate a first rotation angle of a spindle in a brake apply mode of the electromechanical brake, calculate a second rotation angle of the spindle in a braking release mode of the electromechanical brake, and when a difference between the calculated first rotation angle and the calculated second rotation angle exists, control a notification device to notify a wear state of a brake pad.

An automatic descent control device includes a line configured to be attached to a load. A line system retracts slack from the line when the line is not loaded and extends the line when the line is loaded. At least one braking system provides a braking force when the line is loaded so as to control extension of the line and a descent rate of the load. The at least one braking system is operable in at least two configurations, a first configuration that the at least one braking system lowers the load at a first descent rate, and a second configuration that the at least one braking system lowers or locks the load at a second descent rate. The load being a constant and the first descent rate is greater than the second descent rate.

In a disc brake (2) with a brake disc (1) having a virtual main disc plane (11), a disc hub (3), and two friction rings (5, 6) mounted on the disc hub (3) so as to be non-rotatable about an axis of rotation (4), arranged at an axial distance (8) from each other forming a cooling gap (7), and provided with holes (9, 10), the holes (9, 10) through the friction rings (5, 6) each extend at an angle (19) between 20° and 70° to the main disc plane (11). Viewed from the cooling gap (7), either all holes (9, 10) through both friction rings (5, 6) extend away from the axis of rotation (4) or all holes (9, 10) through both friction rings (5, 6) extend towards the axis of rotation (4).

An electro-mechanical brake includes: a brake disc; a friction pad; a pressing unit configured to press the friction pad toward the brake disc; a motor supplying power to the pressing unit; a current sensor; a position sensor configured to measure a position of the pressing unit; and an initial position calculating unit calculating at least one of a home position or a contact point of the pressing unit, wherein the pressing unit is configured to pass through a first check point at which a first current is measured, and a second check point at which a second current greater than the first current is measured, and wherein the initial position calculating unit calculates at least one of the home position or the contact point based on the first current, the first check point, the second current, and the second check point.

A vehicle wheel drive device includes: a rotary electric machine that is received on a radially inner side of a vehicle wheel shaped in a cylindrical tubular form and is configured to rotate the vehicle wheel; and a brake device that includes a brake disc and a brake caliper. The brake device is configured to generate a braking force relative to the vehicle wheel. The rotary electric machine includes a rotor and a stator which are opposed to each other in a radial direction. A hollow space is formed on a radially inner side of a magnetic circuit unit that is formed by the rotor and the stator. The brake device is placed in the hollow space in a state where the brake caliper is fixed to an axial end surface of the stator which faces in an axial direction, and the brake disc is rotatable integrally with the rotor.

A brake apparatus for a vehicle may include: a torque member having a pair of brake pads installed therein and spaced apart from each other, and configured to surround a brake disk; a caliper configured to cover the torque member, and having a gravitational center adjuster configured to adjust the position of a gravitational center toward the brake disk; a pair of guide rods configured to connect the torque member and the caliper, such that the caliper is slidably coupled to the torque member; and an actuator mounted on the caliper.

A parking brake control apparatus controls an electric motor based on an "estimated thrust force (stroke)" acquired from a "stroke" corresponding to an electric motor rotational amount acquired based on a current value and a voltage value supplied to the electric motor and a "pad stiffness learned value (more specifically, pad stiffness after a temperature characteristic is taken into consideration)", which is an element regarding stiffness including stiffness of brake pads, when the current value changes according to a change in the voltage value applied to the electric motor.

An electromechanical braking system with wear compensation and a vehicle. The electromechanical braking system includes a caliper body, two friction plates, a gain bridge, a stud, and a drive apparatus, the gain bridge, one friction plate, the other friction plate, and the stud are arranged sequentially, the gain bridge is configured to movably connect the caliper body and the one friction plate, and the stud is configured to drivingly connect the caliper body and the other friction plate; the drive apparatus is configured to: drive the gain bridge and the one friction plate, and drive the stud and the other friction plate; and the drive apparatus is further configured to drive, through a unidirectional torque limiting apparatus, the stud to rotate relative to the caliper body along an axis of the stud. The embodiments improve reliability of the electromechanical braking system.

Disclosed herein an in-wheel motor with a brake module. The in-wheel motor comprises an upper cover 1 of a circular shape, having a shaft 10 coupled in the center, a brake module 2 positioned in a lower part of the upper cover 1 and installed on an upper part of a stator 3 fixedly installed on the shaft 10, and a rotor 4 coupled to the upper cover 1 and installed on an outer circumferential surface of the stator 3 to rotate, wherein the brake module 2 comprises: a brake ring 20 having a ring shape and having a plurality of braking protrusions 20A protruding upward, and a brake driving part 21 installed on an outer side of the brake ring 20 to move the brake ring 20 downward, and the plurality of braking protrusions 20A are inserted into braking grooves 11 formed on the upper cover 1, respectively.

The invention relates to the technical field of automobile brake control, in particular to a double-caliper automobile brake, symmetrical assembling equipment and an assembling method.The double-caliper automobile brake comprises a brake disc, two sets of hydraulic calipers are arranged on the brake disc, and each set of hydraulic calipers is connected with an oil pumping structure; the control box is connected with the oil pumping structure; the deflection plate is arranged in the control box, and the deflection plate can be matched with the oil pumping structure to drive the hydraulic calipers to act; the driving assembly is installed in the control box and connected with the deflection plate, and when a brake pedal is stepped down, the driving assembly can drive the deflection plate to act towards the oil pumping structure; and the switching assembly is connected with the driving assembly and the deflection plate, and the switching assembly can drive the deflection plate to deflect when one set of hydraulic calipers keeps the braking action for preset time, so that the two sets of hydraulic calipers alternately execute the braking action, and the high temperature of the braking system is avoided.

A braking system for a vehicle is disclosed. The braking system includes friction members operable to provoke braking of the vehicle, a cooling duct extending between an air inlet for the intake of outside air and an outlet opening for discharging the air, wherein at least one of the friction members is arranged in the cooling duct, a filter duct extending between an inlet communicating with the outlet opening and an outlet to the external environment with a first and a second branch arranged in parallel, a valve comprising an element and controllable according to a first configuration in which the element at least partially obstructs the first branch and clears the second branch, and a second configuration in which the element at least partially obstructs the second branch and clears the first branch, and an actuator configured to drive the valve in response to the braking of the vehicle.

A disc brake for a utility vehicle includes a brake caliper that is in the form of a sliding caliper and overlaps a brake disc; two brake pads which are located in the brake caliper, can be moved in opposite directions in the direction of the brake disc, each have a pad backing plate and a friction lining fastened thereto, and are each located in a pad shaft of a vehicle-side brake carrier, which pad shaft is delimited in the direction of rotation of the brake disc by brake carrier horns; and at least one restoring device by which the brake pads can be restored after a braking-related movement and release of the brake. The restoring device has at least one restoring element which is attached to a brake pad, is located between the brake pad and a stationary component, and exerts a restoring force on the brake pad, the at least one restoring element being in the form of a leaf spring which is fastened on the rear side of the pad backing plate facing away from the friction lining and has a spring arm which extends in the peripheral direction of the brake disc and is supported against the brake carrier as a stationary component.

The utility model provides a wheel hub motor parking mechanism which comprises a base, a locking disc, a clamping jaw and a linear push-pull mechanism, and the base is fixed to the side, not rotating along with wheels, of a wheel hub motor; the locking disc is rotationally arranged in the base and fixed to a rotating shaft of the hub motor, the locking disc comprises a protruding block, and the protruding block deviates from the axis of the rotating shaft of the hub motor; the number of the clamping jaws is two, the opposite ends of the clamping jaws are hinged into the base, and the protruding block selectively abuts against one of the two clamping jaws. According to the hub motor parking mechanism, the locking disc and the clamping jaw are arranged, parking torque generated by traditional friction force is changed into a parking top block limiting mode to provide the parking torque, the parking torque is formed more easily, and after the forming mode of the parking torque is changed, the parking torque is not limited to the friction force between the brake disc and the parking mechanism any more; instead, depending on the yield limit of the material, larger parking torque is provided by fully utilizing structural characteristics and material characteristics, and the number of parts of the parking device is reduced.

The present disclosure relates to a brake calliper for a disc brake. The brake calliper comprises a supporting structure, a cover with a pin, and a fixing disc. The supporting structure has a bridge and at least one bridge finger which has a brake lining side, an outer side and a bore which is incorporated into the outer side and which runs from the outer side in the direction of the brake lining side. The cover has a pin protruding into the bore. The fixing disc has a disc edge which has an outer diameter D and which is positively held in the bore and with a disc center which has a through-opening, through which the pin protrudes. The disc center has a clamping region which is bulged relative to the disc edge in the direction of the brake lining side and which fixedly clamps the pin in the through-opening by a clamping edge. The disclosure also relates to such a fixing disc itself.

A motor vehicle disk brake has a sleeve which is manufactured from elastomer for the purpose of sealing a gap between the bolt and the brake holder. The sleeve has ribs lying against the bolt. The ribs are arranged parallel to the axis of the bolt and are odd in number. A release operation of the motor vehicle disk brake is assisted by the sleeve.

To obtain a brake device 8 and a buffer member 100 that allow a buffer part 110 to be easily replaced, and allow the generation of a contact sound to be restrained when a field 10 and an armature 20 come into contact with each other.SOLUTION: A brake device 8 comprises a field 10, an electromagnetic coil 80, an armature 20, a biasing part 70, and a buffer member 100. The field 10 comprises a first surface 11 and a second surface 12. A hole 16 penetrating to the second surface 12 from the first surface 11 is formed. The buffer member 100 is formed so as to be insertable into the hole 16 toward the first surface 11 from the second surface 12. A buffer part 110 is arranged at one end. The buffer member is arranged in the hole 16 so that when the armature 20 approaches the first surface 11, the armature 20 comes into contact with the buffer part 110.SELECTED DRAWING: Figure 3

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 utility model discloses a belt drive compact shelving manual driving device with a novel braking mechanism, a belt wheel braking mechanism is arranged above a transition belt wheel, the belt wheel braking mechanism comprises a support and a sliding unit, the support is fixedly connected with an integrated board, the sliding unit is connected with the support in a sliding mode, and the sliding unit is connected with the transition belt wheel in a sliding mode. The sliding unit spans the two ends of the transition belt wheel, one end of the sliding unit is fixedly connected with an electric push rod, the electric push rod is slidably connected with the support, the driving end of the electric push rod is fixedly connected with a first friction plate, and the other end of the sliding unit is fixedly connected with a second friction plate. The brake device is ingenious in structure, the first friction plate and the second friction plate clamp or loosen the transition belt wheel through the telescopic action of the electric push rod, and therefore the brake function or the brake release function of the transition belt wheel is effectively achieved. The braking force of the braking mechanism is not radially acted on the wheel groove of the transition belt wheel, but acts on the end faces of the two sides of the transition belt wheel, and the belt wheel groove and the belt wheel shaft cannot be damaged.

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.

In order to determine a rotation angle signal of a DC machine precisely, reliably and in a simplified manner, a method is proposed, wherein combining of a current signal of the DC machine and a voltage signal of the DC machine is used to determine a combined signal; wherein conditioning of the combined signal is used to determine a conditioned signal; and wherein a rotation angle signal is determined by analysing signal oscillations of the conditioned signal.

The invention provides a split compound brake device, a disassembly and assembly method thereof and a railway vehicle, the split compound brake device comprises a shell main body, a mandrel, a split static disc, a split movable disc and an actuator, and a plurality of guide parts are respectively constructed in the axial direction of the shell main body; the mandrel is configured in the shell main body, and a disc hub with an axial spline is arranged on the mandrel; the split static disc is matched with the guide part and is suitable for sliding along the guide part; the split type movable disc and the split type static disc are matched to form a friction pair and are configured to slide in the axial direction of the disc hub. The actuators are arranged at the two ends of the shell body and are configured to drive the split type static disc and the split type movable disc to extrude and brake each other. The split type movable discs and the split type static discs are matched to form friction pairs, so that the number of the friction pairs can be increased by increasing the number during connection, then the braking force can be adjusted, the braking force does not need to be adjusted by configuring a plurality of brake discs and clamps, and structure simplification and light weight of the bogie are facilitated.

The invention relates to the technical field of rail transit, in particular to a brake disc connecting structure, a full-disc type brake device and a rail vehicle. In the brake disc connecting structure, a brake disc comprises a plurality of brake movable discs and a plurality of brake movable discs which are arranged at intervals, a core shaft is suitable for being connected with a braked power shaft, the core shaft is arranged at the axis of the brake disc in a penetrating mode, the core shaft is fixedly connected with all the brake movable discs and can synchronously rotate, and all the brake discs can enable the core shaft to brake the power shaft through mutual extrusion. Wherein a center plate is arranged in the mandrel, one end of the center plate is connected with the inner wall of the mandrel, and the other end of the center plate is connected with a braked power shaft. The brake disc connecting structure is simple in overall structure and easy to disassemble and assemble, so that the later maintenance cost is reduced; moreover, the brake disc connecting structure utilizes the center plate in the mandrel to realize internal heat dissipation of the mandrel, so that the internal heat transfer path of the mandrel is prolonged, the influence of dynamic heat energy on the motor bearing is effectively reduced, the service life of the motor bearing is prolonged, and the use safety of the motor bearing is improved.

A brake pad set (22) for disc brakes is shown, comprising an inner brake pad (24) and an outer brake pad (26). Each of the brake pads (22, 24) has a backing plate (28) and a brake lining (30, 32) attached to the backing plate (28), which comes into contact with a brake rotor during operation. The inner brake lining (30) and the outer brake lining (32) differ in size and preferably also in geometric shape in top view, wherein the wear volume of the inner brake pad (24) and the wear volume of the outer brake pad (26) differ by less than 10%. Furthermore, a vehicle brake (10) with such a brake pad set (22) is shown.

Disclosed herein are an electro-mechanical brake system and a controlling method thereof. The electro-mechanical brake system according to the present embodiment includes a driving part including a motor configured to generate a driving force and a brake pad configured to brake a vehicle or release braking by moving forward and backward with respect to a disc by the motor, a sensor part including a first sensor configured to output a signal corresponding to a stroke of the motor, a second sensor configured to output a signal corresponding to a force applied from the disc to the brake pad, and a third sensor configured to output a signal corresponding to an active brake condition of the vehicle, a controller configured to estimate and update a contact point between the disc and the brake pad, whenever a braking input of the brake pad or release thereof occurs.

An air disc brake system includes a carrier having a mounting feature and a guide pin having a longitudinally extending relief passage. A caliper includes a longitudinally extending bore having spaced apart first and second ends, wherein the guide pin is received in the bore, and wherein the caliper is slidably mounted on the guide pin with the relief passage in fluid communication with the first and second ends of the bore. A fastener couples the guide pin to the carrier. A cap is coupled to the caliper and closes a second end of the bore. Methods of using and assembling the air disc brake system are also provided.

According to one aspect of the disclosure, a brake piston is provided which is provided in a braking system of a vehicle and presses a brake pad against a disc by means of hydraulic brake pressure, wherein the brake piston comprises: a body section which is installed in a cylinder provided in a brake caliper housing, has the form of a column and is arranged to be able to move forwards and backwards, wherein the body section comprises: a first body section which is provided on an outside of the body section in a radial direction of the disc; and a second body section which is provided on an inside of the body section in the radial direction of the disc and has a coefficient of elasticity which differs from a coefficient of elasticity of the first body section.

An actuator assembly may comprise: a motor having a motor shaft; and a motor housing comprising a housing body accommodating at least a part of the motor and a housing cover coupled to the housing body, wherein an idler configured to tension a drive belt rotatably coupled to the motor shaft. The actuator assembly further comprises one or more couplers configured to allow the housing cover to be movable or rotatable relative to the housing body such that the idler fixed to the housing cover is movable or rotatable according to movement or rotation of the housing cover to adjust tension of the drive belt.