82results 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.

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 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).

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 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.

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 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.

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 is aimed at solving issues of pad suction and drag torque, which occur during driving in disk brake systems. The invention relates to a brake disk for a disk brake system, having at least one friction surface, which is at least sectionally delimited by at least one protrusion, protruding from the at least one friction surface, at an outer circumferential side and / or at an inner circumferential side of the at least one friction surface. The invention also relates to a brake system having a brake disk of this type.

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 method of refurbishing a steel-shell brake drum that includes superheating a worn-out brake drum until the worn-out brake drum is glowing hot. The worn-out brake drum includes a steel shell and a worn-out, gray-iron layer bonded to an inside surface of the steel shell. The method further includes centrifugal casting additional molten iron to the gray-iron layer to increase the radial thickness of the gray-iron layer.

The utility model belongs to the technical field of mechanical braking equipment, and particularly relates to an elevator safety braking device which comprises a fixing seat. A first brake drum is mounted on the inner side wall of the fixed seat; a second brake drum is mounted on the side wall of the fixed seat; a plurality of fixed shafts are mounted on the side wall of the fixed seat; the multiple fixing shafts can fix a first brake drum and a second brake drum. The side wall of the first brake drum is rotationally connected with a bolt; the bolt penetrates through the first brake drum; the end part of the bolt is fixedly connected with a brake tile; the side wall of the brake tile is in sliding connection with a brake disc; the second brake drum is in sliding connection with the brake disc; the middle part of the brake disc is hollow; a bolt is installed on the first brake drum and penetrates through the first brake drum, the end of the bolt is fixedly connected with a brake tile, the speed reduction of the brake disc is adjusted by adjusting the position of the bolt and adjusting the contact size of the brake tile and the brake disc, and the braking effect on the elevator is achieved.

The utility model provides a high-strength wear-resistant gray cast iron brake drum which comprises a brake bottom plate fixed with an axle, two brake shoes which are oppositely arranged are hinged on the brake bottom plate, a brake drum which is braked through friction of the two brake shoes is rotatably arranged on the brake bottom plate, and a spray assembly is arranged in the brake bottom plate. The spraying assembly comprises an annular water pipe coaxial with the brake bottom plate, the annular water pipe is located between the two brake shoes, a plurality of spray nozzles are arranged on the annular water pipe at equal intervals, a water inlet pipe is installed at the water inlet end of the annular water pipe, the other end of the water inlet pipe penetrates through the back of the brake bottom plate and then is communicated into a water tank on the vehicle, and water outlets are formed in the brake shoes. The spraying assembly is arranged on the brake bottom plate, the spraying assembly is started to spray mist, water mist is dispersed in the brake drum and makes contact with the surface of the brake drum, the brake drum is cooled, air continuously enters the water outlet to accelerate air flowing, the cooling effect is improved, and meanwhile the water mist is heated, evaporated and collected into water drops to be discharged in time through the water outlet.

The application discloses a novel lightweight bimetallic brake drum, which comprises an outer shell, reinforcing ribs are designed on the circumferential part of the outer shell, an annular reinforcing band is designed on the large end face of the outer shell, a plurality of groups of fixing holes are uniformly arranged on the circumferential annular part of the outer shell, a plurality of friction plates are installed on the inner wall of the outer shell, the outer shell is made of steel material, the friction plates are made of high-carbon wear-resistant gray cast iron material or ceramic material, the friction plates are in an arc shape, counterbores are designed on the surfaces of the friction plates, no less than three friction plates are arranged in a single outer shell, a gap is reserved between two adjacent friction plates, the outer shell and the friction plates are connected and fixed through fasteners, and the threads of the fasteners are coated with thread locking agents. The application has the advantages of lightweight design, light weight, reduction of about 20%-30% of a traditional brake drum, consideration of fuel consumption, long service life, prevention of cracking of the brake drum due to heat recession of a brake motor, influence on driving safety and reduction of maintenance cost in the later period.

In some examples, an insert assembly includes an insert, a rivet, and a washer configured to position on a brake disc. The insert is configured to position within a disc slot of the brake disc. The rivet shank is configured extend through a washer hole of the washer and a rivet slot of the insert to secure the insert to the brake disc. The washer is configured to be positioned between the insert and a rivet head of the rivet when the rivet shank extends into the brake disc. The rivet slot is configured to allow for the motion of the insert relative to the rivet in the tangential direction when torque is imparted through the disc slot via the insert. In some examples, the rivet is a solid rivet. In some examples, the rivet head is an orbitally riveted head fabricated using an orbital riveting tool.

The brake drum with the noise reduction and heat dissipation functions comprises a brake drum body, a connecting hole is formed in the center of the front face of the brake drum body, heat dissipation holes distributed at equal intervals are formed in the circumferential outer wall of the brake drum body, and reinforcing ribs are welded to the positions, close to the positions between every two sets of heat dissipation holes, of the brake drum body. Each heat dissipation hole is composed of a small-hole-diameter bottom end, a wave structure face and a large-hole-diameter top end, the large-hole-diameter top ends are arranged at the tops of the heat dissipation holes, the small-hole-diameter bottom ends are arranged at the bottoms of the heat dissipation holes, the wave structure faces are arranged in the heat dissipation holes, and heat conduction pieces distributed at equal intervals are welded to the middle section of the brake drum body. Due to the arrangement of the wave structural surfaces in the heat dissipation holes, when wind passes through the heat dissipation holes, linear propagation of airflow is effectively hindered, generation of wind noise is reduced, meanwhile, the airflow consumes energy after being reflected and rubbed for multiple times, vibration can be effectively reduced, and generation of noise can be reduced.

The embodiment of the utility model provides a brake cooling system and a vehicle, and relates to the technical field of vehicles. The brake heat dissipation system comprises a brake cavity and at least one heat dissipation channel, the brake cavity is used for containing a brake, the first end of the heat dissipation channel communicates with the brake cavity, and the second end of the heat dissipation channel communicates with the exterior of a vehicle; a heat dissipation fan is arranged in at least one heat dissipation channel and can dissipate heat of the brake cavity through the heat dissipation channel. By arranging the heat dissipation channel and the heat dissipation fan, active heat dissipation is conducted on the brake in the brake cavity through forced convection, and a traditional water spraying cooling mode is replaced. A large water tank or a water spraying device does not need to be installed, the problem that dust and impurities adhere to a brake hub due to water spraying is solved, pollution of a brake system is reduced, stable performance of the brake system is maintained, and the heat dissipation efficiency of the brake is remarkably improved.

The invention relates to a method for manufacturing a brake drum for a vehicle. In the method, at least two connecting elements (1), each having a mounting section (7) and formed at least partially from a first material, are provided (B). An intermediate brake drum component (30) with a shell element (26) is produced by centrifugal casting of a second material within a die device (20, 40) rotatable about an axis of rotation (25) (E). During centrifugal casting, the connecting elements (1) are arranged at a predetermined distance (d) from one another and extend at least partially in a radial direction (R) relative to the axis of rotation (25) into the formed shell element (26).

The utility model discloses a brake and a vehicle, and the brake comprises a brake drum which is provided with a first positioning part; the connecting flange is provided with a second positioning part, and the first positioning part and the second positioning part are matched in a positioning mode and fixed in a welding mode. Therefore, the first positioning part on the brake drum and the second positioning part on the connecting flange are fixed in a welding manner, so that a bolt connection scheme can be replaced, the connection reliability of the brake drum and the connecting flange can be ensured, the process can be simplified, the weight of the brake can be reduced, and the service life of the brake is prolonged. Therefore, the brake is low in cost, high in reliability and light in weight.

Composite brake drum, comprising a connecting section (2) oriented perpendicular to the axis of rotation (X) of the composite brake drum (1) and designed to connect the composite brake drum (1) to a wheel to be braked, comprising an annular shell section (5) supported by the connecting section (2) and rotating around the axis of rotation (X) of the composite brake drum (1), and comprising a friction ring (6) supported by the shell section (5), which also rotates around the axis of rotation (X) of the composite brake drum (1) and has a friction surface (16) on its free inner circumferential side, which is rotationally symmetrical to the axis of rotation (X) of the composite brake drum (1), wherein the connecting section (2) is made of a light metal material and the friction ring (6) is made of a cast iron material, wherein the friction ring (6) has a structure on its outer circumferential surface,the structure is formed by protrusions (17) and depressions (18) which are at least partially bounded by the protrusions (17), and wherein the material of the shell section (5) has penetrated into the depressions (18) of the structure, characterized in that the friction ring (6) has a thickness (D1) in a first edge region (12), which is bounded by its end face (7) facing the connection section (2), which is smaller than the thickness (D2) that the friction ring (6) has in its second edge region (14), which is bounded by the end face (10) facing away from the connection section (2), and that the thickness (D1) of the first edge region (12) increases continuously from its edge associated with the connection section (2) towards the second edge region (14) and the thickness (D2) of the second edge region (14) increases continuously up to the end face (10) facing away from the connection section (2).that the increase in thickness (D2) over the second edge region (14) is greater than the increase in thickness (D1) over the first edge region (12) and the proportion of the width of the second edge region (14) to the width (BR) of the friction ring (6) is greater than the proportion that the width of the first edge region (12) occupies to the width (BR) of the friction ring (6) and that at least some of the protrusions (17) extend parallel to the axis of rotation (X) of the composite brake drum (1)..