149results about "Braking drums" patented technology

The invention provides a brake comprising a stator assembly comprising a stator iron core and a coil winding, and the coil winding is arranged on the stator iron core; the hub assembly comprises a hub and magnetic steel, and the magnetic steel and a friction part are arranged on the side, facing the stator core, of the hub; the armature is arranged between the stator assembly and the hub assembly; when the coil winding is electrified, the armature is adsorbed on the stator iron core; and when the coil winding is powered off, the armature is adsorbed on the friction part under the action of the magnetic force of the magnetic steel to brake the hub. During power-off braking, the suction force of the magnetic steel to the armature and the counter-acting force of the hub to the armature are mutually counteracted in the brake and do not act externally, and the axial force of a traditional brake to a motor is eliminated.

The utility model relates to the technical field of automobile manufacturing, and discloses a novel heavy-duty vehicle brake drum which comprises a drum body, a plurality of heat dissipation holes are formed in the top of the drum body, a heat dissipation disc is fixedly connected to the outer wall of the drum body, a plurality of cooling holes are formed in the outer wall of the heat dissipation disc, and cooling pipes are fixedly connected to the inner walls of the cooling holes. The inner wall of the cooling pipe is slidably connected with a heat exchange pipe, the inner wall of the heat exchange pipe is fixedly connected with a cooling pipe, and the inner wall of the cooling pipe is fixedly connected with a flow limiting hole. According to the utility model, the drum body rotates to drive the heat dissipation disc to rotate, and liquid in the heat exchange pipe flows and exchanges heat with liquid in the cooling pipe for cooling under the action of centrifugal force, so that the purpose of actively cooling the brake drum for a long time is achieved, and the reduction of the brake performance of a vehicle caused by high-temperature deformation of the brake drum due to high temperature is avoided; the safety of the vehicle is improved, and the probability of accidents is reduced.

The brake hub comprises a brake hub body, mounting rods are fixedly connected to one side of the brake hub body at equal intervals, first brake pads are arranged on the outer sides of the mounting rods, connecting holes are formed in the first brake pads at equal intervals, and the outer sides of the mounting rods are in sliding connection with the interiors of the connecting holes. A first nut is in threaded connection with the outer side of the mounting rod, a second brake pad is arranged on one side of the first brake pad, a containing groove is formed in one side of the second brake pad, the interior of the containing groove is in sliding connection with the outer side of the first brake pad, and a mounting assembly is arranged between the brake hub body and the second brake pad. According to the brake hub with the impurity preventing and blocking effects, a double-brake-pad structure is adopted, when one brake pad is abraded to a certain degree, the other brake pad can be put into use continuously, and therefore the overall service life is prolonged, the maintenance frequency caused by abrasion is reduced, and a car owner does not need to replace the brake pads frequently.

The invention relates to a method for producing a composite brake drum (1), wherein - a friction ring (2) is produced as a metal cast part, - a brake pot (3) made of a lightweight metal alloy is cast around the friction ring (2) at least with oversized dimensions, as a result of which a composite brake drum blank with a central axis (8) is produced, - the composite brake drum blank is pre-processed at least on its outer circumference (7) with oversized dimensions, - an imbalance of the pre-processed composite brake drum (1), comprising the brake pot (3) and the friction ring (2) of the pre-processed composite brake drum (1), is determined, - the outer circumference (7) and / or the hub (6) of the brake pot (3) is post-processed and the central axis (8) of the composite brake drum (1) is displaced by a radial offset (a) towards a hub axis*** (10) such that the determined imbalance is at least partially compensated for, - the brake pot (3) is then fully circumferentially finished, and - screw openings (9) for wheel screws are introduced. As a result, the composite brake drum (1) can be balanced and produced simply, cost-effectively and in a manner which is suitable for a series production.

A brake lining (3, 130, 230) for a radially actuatable drum brake (1) of a utility vehicle has a lining support (32, 132, 232), at least one friction lining (31, 131, 231), said friction lining being provided on the lining support (32, 132, 232) and having a friction surface which is convex in the shape of a circular arc segment in the circumferential direction, and a pressure piece (7, 170, 270) which is secured to the lining support (32, 132, 232), said pressure piece (7, 170, 270) being positively and / or frictionally held in the radial direction with the aid of at least one holding element. The invention also relates to a drum brake.

Method for forming a decorative insert (110, 112) on a brake pad wear surface (106, 406) of a brake disc (100, 400), the method comprising: Positioning an insert material in a mold; Casting a brake disc (100, 400) in the mold around the insert material; and Machining the brake disc (100, 400) by cutting, grinding, sandblasting, scraping or polishing so that at least part of the insert material is visible on the brake pad wear surface (106, 406), wherein the thickness of the decorative insert (110, 112) is 0.5 to 3.0 millimeters, and wherein: a coefficient of friction between the decorative insert (110, 112) and a brake pad is the same as a coefficient of friction between the brake pad wear surface (106, 406) and the brake pad; and a wear rate of the decorative insert (110, 112) is equal to or greater than a wear rate of the brake pad wear surface (106, 406).

The invention discloses an anti-deformation thick-wall pig iron brake disc, and relates to the technical field of pig iron brake discs, the anti-deformation thick-wall pig iron brake disc comprises a hub, a disc body is fixedly connected to the circumferential surface of the hub, mounting sleeves are arranged on the circumferential surface of the disc body, a bolt penetrates through the mounting sleeves, and a pushing piston is arranged in each mounting sleeve; a brake block is fixedly connected to the end, away from the mounting sleeve, of the pushing piston, a brake expansion mechanism is arranged in the mounting sleeve and comprises a mounting groove, the mounting groove is formed in the brake block, and a pushing block is slidably connected into the mounting groove. Through mutual cooperation of the expansion brake block, the pushing block and the linkage assembly of the brake expansion mechanism, the effective friction contact area is dynamically increased in the braking process, heat generated by friction is more evenly dispersed on the disc face, the local peak temperature and thermal stress are remarkably reduced, and the braking efficiency is improved. And the buckling deformation of the brake disc caused by heat concentration is inhibited from the source.

To provide a hoisting machine and elevator that can prevent damage to the lining. [Solution] The hoisting machine comprises a drive sheave, a braked body that rotates together with the drive sheave, and an electromagnetic brake device that brakes the rotational movement of the braked body and the drive sheave. The electromagnetic brake device has a brake shoe 15 that approaches and moves away from the braked surface of the braked body, and a plurality of linings 16 provided on one surface of the brake shoe 15 facing the braked surface and in contact with the braked surface. The plurality of linings 16 are arranged so as to avoid the locations of fixing holes 34 provided on the brake shoe 15 that face the braked body.

The invention discloses a cast iron brake disc and a preparation method thereof. The cast iron brake disc is prepared by spraying a functional coating on a cast iron base body, and the use amount of the functional coating accounts for 8-12% of the mass of the cast iron base body. According to the cast iron brake disc prepared through the method, the rare earth oxide is added into traditional cast iron preparation raw materials, the mechanical property of the material is improved, the rare earth oxide is a compound of yttrium oxide and cerium dioxide, and synergistic interaction is achieved through compound use. The surface of the brake disc is coated with the functional coating, the wear resistance and heat resistance of the brake disc are improved, the wear resistance of the brake disc is improved through combined use of the perchloro-ethylene resin and the polyaspartic acid resin, and the heat resistance of the brake disc is improved through combined use of the sodium tungstate and the potassium titanate whiskers.

The present invention provides a brake drum (100). The brake drum comprises a hollow cylindrical body (102) having a first end (102a) and a second end (102b). A flat circumferential portion (102c) is provided between the first end (102a) and the second end (102b). The flat circumferential portion (102c) is aligned parallelly to a 5 central axis (A-A') of the hollow cylindrical body (102). The flat circumferential portion (102c) is adapted to maintain perpendicularity with a rim portion (112) of the hollow cylindrical body (102). Such a construction ensures uniform contact of the brake pad (120), thereby ensuring effective braking of the vehicle.

The invention relates to a vehicle drum brake comprising a drum assembly surrounding an interior space (30) and formed by a drum body (11) and a covering panel (20), which is securely connected to the vehicle axle. The drum body (11) is pot shaped and formed from a drum casing (12) and a flange (13) arranged on the end side thereof. This is screwed together with a hub flange (8) of a wheel hub (6). The covering panel (20) covers the other second end side of the drum casing (12). The two brake shoes (22) are moveably mounted on the brake carrier (4) and can be spread apart against the braking surface of the drum casing (12). According to the invention, in order to reduce the environmental impact of the braking-related wear process, the interior space (30) is a chamber that is entirely surrounded by walls and sealed relative to the outside, and at least one wall section (33, 33A, 33B, 33C, 33D) of the walls consists of a filter material that is permeable for air and blocks dust particles and / or consists of a pressure compensation element (48).

A cladding composite brake drum comprises a drum portion and a flange portion which are fixed together, a plurality of mounting holes are formed in the flange portion, a transition area between a shell of the drum portion and the flange portion is a bottom, the shell of the drum portion and the flange portion are integrally formed through spinning of a steel pipe, an inner layer of the drum portion is a friction layer, and the friction layer and the shell of the drum portion are fixed in a cladding mode. A plurality of heat dissipation holes are formed in the bottom, the number of the heat dissipation holes is consistent with that of the mounting holes, and the heat dissipation holes and the mounting holes are staggered. The heat dissipation holes are axial arc-shaped holes, and the arc-shaped holes extend in the circumferential direction of the bottom. Compared with the prior art, the cladding composite brake drum has the technical effects that the drum part and the flange part of the cladding composite brake drum are integrally formed by spinning, and the inner layer is the friction layer.

The utility model relates to the technical field of brake drums, in particular to a light truck brake drum which comprises a brake drum body and a mounting hole, the mounting hole is formed in the inner side of the left end of the brake drum body, a heat conduction pipe is fixedly connected to the outer side of the right portion of the brake drum body, and an annular cooling fin is fixedly connected to the outer side of the heat conduction pipe. By arranging the heat conduction pipe, the annular cooling fins, the ventilation holes, the annular uniform flow plate, the air cooler, the ventilation pipe and the air outlet, the heat conduction pipe can rapidly conduct heat generated when the brake drum body brakes, the annular cooling fins increase the heat dissipation area, the air cooler is started, the air cooler blows out cold air through the ventilation pipe and the air outlet, air flowing is accelerated, and the heat dissipation efficiency is improved. The annular flow uniformizing plate evenly diffuses cold air rightwards, heat on the annular cooling fins is exchanged, the heat is discharged in time, the ventilation holes can accelerate the cold air to flow rightwards, and therefore the overall cooling speed of the brake drum body can be increased, heat accumulation is reduced, and the service life is prolonged.

The utility model belongs to the technical field of brake drums, and particularly discloses a brake drum core adopting sealing protection, which comprises a brake drum, mounting bolts are fixed on one side of the brake drum, a first sealing ring is arranged on the brake drum between the mounting bolts, and an oil storage box is fixed on the inner side wall of the brake drum. A plurality of oil conveying pipes are connected to the periphery of the oil storage box, sealing felts are arranged at the ends of the oil conveying pipes and located on the brake drum, sealing bearings are arranged on the inner sides of the sealing felts, the sealing bearings are clamped on clamping rings, the clamping rings are fixed to an installation plate, and third sealing rings are arranged on the two sides of the installation plate. A plurality of second sealing rings are arranged beside each third sealing ring, the sealing felt is attached to the mounting plate, a large amount of water and dust are prevented from entering the brake drum, meanwhile, the water and dust are further prevented from entering the brake drum through the arranged sealing bearing, and the oil storage box is matched with the oil conveying pipe to supplement lost lubricating oil for the sealing felt.

The present disclosure relates to a brake drum, comprising a brake drum wall extending in a circumferential direction and in an axial direction, the brake drum wall extending in the axial direction from a first axial end of a first axial end portion to a second axial end of a second axial end portion of the brake drum, the brake drum wall comprising an inner surface and an outer surface, wherein the brake drum wall has a wall thickness in a radial direction between the inner and outer surfaces, wherein the brake drum comprises a plurality of cooling channels arranged internally between the inner and outer surfaces, each one of the cooling channels extends in the axial and circumferential directions between an inlet at the first axial end portion and an outlet at the second axial end portion.

A drum brake assembly that includes a brake drum, first and second brake shoes, a cam shaft, a first tappet, a second tappet, and a wear adjuster mechanism. The wear adjuster mechanism has a cross shaft and a sensor. The sensor is configured to detect rotation of the cross shaft about a longitudinal axis to monitor wear of the first and second brake shoes and a braking surface of the brake drum.

The utility model discloses a brake drum for a lorry, which belongs to the technical field of brake drums and comprises an outer shell, an annular brake part is arranged on the inner side of the outer shell, four rectangular fixing blocks are circumferentially and fixedly connected to the outer side of the annular brake part at equal intervals, and a cylindrical through groove is formed in the front end of each rectangular fixing block; and the limiting mechanism comprises an annular limiting groove formed in the inner wall of the rear side of the outer shell, four rectangular limiting grooves are circumferentially formed in the inner wall of the rear side of the outer shell at equal intervals, and a plurality of bolts are arranged on the rear side of the outer shell. Aiming at the use problem, the equipment is provided with the limiting mechanism, maintenance and replacement of the annular brake part can be conveniently achieved, compared with replacement of the whole brake drum, the maintenance cost is reduced, meanwhile, the multiple cooling fins are further arranged and matched with the multiple ventilation openings, the cooling effect of the annular brake part can be improved, and the service life of the brake drum is prolonged. And the performance of the braking system is prevented from being influenced by over-high heat.

A brake drum, comprising a brake drum wall extending in a circumferential direction and in an axial direction, the brake drum wall extending in the axial direction from a first axial end of a first axial end portion to a second axial end of a second axial end portion of the brake drum, the brake drum wall comprising an inner surface and an outer surface, wherein the brake drum wall has a wall thickness in a radial direction between the inner and outer surfaces, wherein the brake drum comprises a plurality of cooling channels arranged internally between the inner and outer surfaces, each one of the cooling channels extends in the axial and circumferential directions between an inlet at the first axial end portion and an outlet at the second axial end portion.

A triboelectric generation apparatus based on a friction brake and a friction brake provide a simple structure with high reliability, a stable circuit, and high energy recovery efficiency. The triboelectric generation apparatus includes two sensing electrodes arranged in a first friction component of the friction brake. When the first friction component is in frictional contact with a second friction component, induced electric charges are generated on the two sensing electrodes. The induced electric charges are different. An electric charge collection circuit is connected to the sensing electrodes and is configured to store the induced electric charges. Storing the induced electric charges allows for the recovery of energy using a simple structure with high reliability.

The application relates to an engineering machinery drum brake, which comprises a mounting shell, a cross roller bearing, a cam roller flange, cam rollers, cam brake shoes, cam limiting grooves, a sector worm block, a worm and a roller connecting ring, the mounting shell comprises a worm mounting cavity, a brake component mounting cavity and brake shoe supporting columns, the inner ring of the cross roller bearing is mounted on the central bearing seat of the brake component mounting cavity, the outer ring of the cross roller bearing is provided with the sector worm block and the cam roller flange, the cam rollers are multiple, are uniformly mounted in roller holes of the cam roller flange and are in abutment with brake shoe cam surfaces of the cam brake shoes through return springs, the worm is axially fixed on the worm mounting cavity through double worm bearings, the cam brake shoes are multiple, are rotationally connected with multiple uniformly distributed brake shoe supporting columns through rotating pin shafts and the roller connecting ring connects the cam rollers in axial locking. Compared with the prior art, the engineering machinery drum brake has the advantages of good heat dissipation, good drainage and uniform wear.

A brake drum for a drum brake of a motor vehicle, the brake drum having:a ring section extending concentrically about a rotation axis; anda circular wall section extending at an angle to the rotation axis;wherein in the brake drum has at least one portion that deviates from at least one of:a) a rotation symmetric configuration of the brake drum with respect to the rotation axis;b) a material comprised by at least one other portion of the brake drum.

The utility model relates to the technical fields of brake drum especially is concerned with a brake drum with prevent silt from invading structure, when using, the brake bottom plate is fixedly installed on the car beam frame through multiple groups of second through -hole, then brake drum body is fixedly connected with the wheel hub through multiple groups of first through -hole, the clearance of sealing washer subassembly round hole and the wheel hub is sealed, the clearance between brake drum body and brake bottom plate is sealed through dustproof subassembly, when using, brake bottom plate and brake structure fixedly stationary, improve the life, including brake drum body, brake bottom plate, first through -hole, second through -hole and round hole, brake drum body front end is provided with round hole, brake drum body front end periphery is provided with multiple groups of first through -hole, brake bottom plate periphery is provided with multiple groups of second through -hole, still include dustproof subassembly and sealing washer subassembly, brake drum body and brake bottom plate between are provided with dustproof subassembly, round hole inboard is provided with sealing washer subassembly, brake bottom plate front end is provided with brake structure.

The utility model relates to the technical field of brake devices, in particular to a brake drum convenient to install, which comprises a brake drum body, a second through hole is arranged on the outer side of the upper half portion of the brake drum body, and a baffle is fixedly connected with the brake drum body through a connecting nut. And then an anti-skid bolt is sleeved with a first screw hole to fix a connecting nut in a semi-groove formed in the brake drum body, a buckle fixedly connected with a baffle is clamped in a clamping groove, so that parts in the semi-groove are protected, and the problem that an existing device is not provided with a device for protecting the bolt and the threaded hole is solved. The problems that in actual use, chippings generated by friction of a brake disc may cause metal chippings to enter a bolt or a threaded hole, so that the brake disc is not easy to disassemble, the device may fall off due to serious abrasion, and no chipping discharging structure is arranged, so that abrasion of the brake disc is accelerated, and an internal bolt connecting structure is damaged are solved.

The utility model belongs to the technical field of drum brake pad roller devices, and particularly relates to a novel drum brake pad roller device which comprises a first roller plate. One side of the first roller plate is connected with a second roller plate; the interior of the first roller plate is fixedly connected with a brake wheel cylinder; the interior of the first roller plate is connected with a limiting column. The surface of the limiting column is connected with a connecting plate; mounting holes are formed in the surface of the first roller plate; the surface of the first roller plate is fixedly connected with a reinforcing plate; the reinforcing plate is in an N shape; the surface of the reinforcing plate is rotationally connected with a rotating disc; one side of the rotating disc is fixedly connected with a screw rod; the surface of the screw rod is in threaded connection with a moving block; the drum-type brake pad roller device solves the problems that in the using process of an existing drum-type brake pad roller device, connection between drum-type brake pad roller devices can be loosened, so that the drum-type brake pad roller devices are opened, and using of the drum-type brake pad roller device is affected.

The invention relates to the technical field of wind power generation, and provides a braking device, a position adjusting system and a wind generating set, and the braking device comprises a gear braking part, a braking pressing block and an adjusting assembly. The gear brake part is in meshed connection with a to-be-braked structure; the brake pressing block is provided with a first pressure-bearing face and a second pressure-bearing face which are oppositely arranged, and the first pressure-bearing face abuts against or is separated from the gear brake part. The adjusting assembly is connected with the second pressure bearing face and used for adjusting the distance between the adjusting assembly and the gear braking piece. In this way, braking force can be provided for the to-be-braked structure through the gear braking part, then the to-be-braked structure can be prevented from moving relative to the braking device, and therefore the braking force provided for the to-be-braked structure can be increased. Therefore, the braking effect of the braking device on the to-be-braked structure can be improved, and the reliability of the braking device can be improved.

The present invention relates to the field of vehicle engineering technology, and provides a drive axle brake and a vehicle. An annular boss is formed in the axial center of the brake drum, and the boss is provided with a heat dissipation hole. The axis of the heat dissipation hole is arranged at an angle to the axis of the brake drum. A first groove is formed in the inner peripheral wall of the brake drum, and the heat dissipation hole extends through the brake drum and is connected to the first groove at one end. The brake drum is sleeved onto the outside of a brake assembly, and a second groove is formed in the outer peripheral wall of the brake assembly. The first groove and the second groove are aligned to form a heat dissipation channel, and the widthwise side walls of the second groove are located between the widthwise side walls of the first groove. This ensures relatively good heat dissipation between the brake drum and the brake assembly, preventing local overheating. Furthermore, as the friction plate becomes thinner, the widthwise side walls of the second groove can be inserted into the first groove, preventing blockage of the heat dissipation channel and reducing heat dissipation efficiency.

A brake device includes a caliper body, a brake pad mounted on one side of the caliper body, a mounting portion formed inside the caliper body, and a pad propulsion unit located in the mounting portion and configured for pressing one surface of the brake pad. The pad propulsion unit includes a rotation medium rotating, a conversion assembly engaged to the rotation medium and converting rotational motion into linear motion in conjunction with the rotation medium, and a piston formed to surround one side of the conversion assembly. The brake device may secure brake performance while reducing manufacturing costs by reducing the overall length of the caliper body.

The invention relates to a method for producing a braking element and to a braking element. The aim of the invention consists in providing an inexpensive, material-saving, and simple method for producing a braking element. The invention additionally relates to a braking element which is weight-optimized and has an improved protection against wear and corrosion. This is achieved by a method for producing a baking element which consists of a metal main part made of a cast material, having at least one disc-shaped or annular friction surface, wherein the cast metal main part has a microstructure, a defective bainitic structure, and a cast surface layer which forms the cast surface; for the metal part, the cast surface layer is at least partly removed at least in the region of the provided friction surface using a first machining process, a wear- and / or corrosion-protection layer is then arranged at least on the defective bainitic structure, and at least the surface of the wear- and / or corrosion-protection layer can subsequently be modified by means of a second mechanical machining process.

The invention relates to a drum brake assembly for braking a wheel a motor vehicle that rotates about a rotation axis,with:a brake drum having a back wall section extending at an angle to the rotation axis and a circumferential wall section,at least one brake shoe assembly,wherein each of the brake shoe assembly and brake drum has a contact portion for contacting the respective other of the brake shoe assembly and brake drum to generate a braking force; andwherein the brake shoe assembly is configured to be coupled to a rotatable axle component of the motor vehicle to rotate relative to the brake drum about the rotation axis.

The invention relates to a friction-type wheel brake (9) suitable and intended for wheel hub drive integration in a motor vehicle, in particular for a fluid-cooled electric wheel hub drive system (5), comprising a wheel brake rotor (11) and a wheel brake stator (10). For system decoupling and improved, simplified brake cooling, the invention defines that a wheel brake rotor (11) is designed to be passively cooled without fluid channels.