CN110748584A

CN110748584A - Brake bracket and brake

Info

Publication number: CN110748584A
Application number: CN201911266814.9A
Authority: CN
Inventors: 任艳强; 郑健; 肖水波
Original assignee: Longzhong Holdings Group Ltd By Share Ltd
Current assignee: Longzhong Holdings Group Ltd By Share Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-02-04

Abstract

The invention provides a brake bracket and a brake, and belongs to the technical field of brakes. It has solved current bracket structure and has leaded to hub disk assembly to tear open and trade inconvenient scheduling problem. This stopper bracket, including the unilateral support body, the top of unilateral support body has the positioning groove who is used for the pair brake block assembly on the positioning brake, has the fixed part on the unilateral support body both sides respectively, has on the front of fixed part can be relative with the brake disc the fitting surface, has the locating plane on the reverse side of fixed part, and the outside border of fixed part does not bulge the fitting surface, has convex installation base on the reverse side of fixed part, and the locating plane is located the installation base. This stopper bracket and stopper can make the hub disc assembly tear open and trade the convenience.

Description

Brake bracket and brake

Technical Field

The invention belongs to the technical field of brakes, and relates to a brake bracket and a brake.

Background

The braking system is a system that forcibly reduces the movement speed of the sporting goods. On vehicles, braking is usually performed by a brake, which includes a disc brake, also called a disc brake, a drum brake, also called a drum brake, and the like. The floating caliper disc brake is widely applied to automobiles due to the advantages of fast heat dissipation, light weight and the like. The floating caliper disc brake comprises a transmission mechanism, a bracket and a caliper body arranged on the bracket, wherein a sliding pin is arranged on the bracket and penetrates through a sliding pin hole in the caliper body, and the transmission mechanism is connected with a brake block. The combination of the caliper body and the component attached to the caliper body is sometimes referred to as a brake caliper assembly.

The bracket is sometimes called a bracket, and the chinese patent literature discloses a vehicle disc brake bracket [ application number: CN 201510136515.9; publication number: CN 104776134A ]: the support comprises a symmetrical curved beam, support heads are symmetrically arranged at two ends of the curved beam, round holes are formed in the upper portion of each support head, and three bolt holes are formed in the lower portion of each support head. The two oppositely arranged bracket heads are connected through the side edge plates, the bracket forms an enclosing structure, the two curved beams are used for installing the two brake blocks of the brake, and the braking part of the brake disc is positioned between the two curved beams and is enclosed by the bracket.

The brake disc passes through the ring flange structure to be fixed with wheel hub, and wheel hub passes through the bearing to be fixed on the axletree of car, and the brake disc constitutes wheel hub assembly with wheel hub. The brake caliper assembly is fixed on the suspension through the support, the position relation of the suspension and the axle is fixed, and the installation space between the brake caliper assembly and the hub disc assembly is limited. Because the braking portion of the brake disc is surrounded by the bracket, the bracket forms limitations on the inner side, the outer side and two radial sides of the braking portion of the brake disc, and the hub disc assembly can be detached from the axle only after the brake caliper assembly is detached from the suspension frame. The brake caliper assembly is disassembled to be the support, and the support is required to be repositioned when being fixed again after the support is disassembled, so that the hub disc assembly is inconvenient to disassemble and replace.

Disclosure of Invention

The invention aims to provide a brake bracket and a brake aiming at the problems in the prior art, and solves the technical problem of how to conveniently disassemble and replace a hub disk assembly.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a brake bracket, includes the unilateral support body, the top of unilateral support body has the positioning groove who is used for the pair brake pads assembly on the positioning brake, the fixed part has on the unilateral support body both sides respectively, the fitting surface that can be relative with the brake disc has on the front of fixed part, the locating plane has on the reverse side of fixed part, its characterized in that, the outside border of fixed part does not bulge the fitting surface, convex installation boss has on the reverse side of fixed part, the locating plane is located the installation boss.

The brake has two brake pads located on two sides of the brake disc, and for convenience of description, the two brake pads are referred to as a brake pad assembly and a counterpart brake pad assembly. When the bracket is installed, the positioning plane is abutted against the suspension for positioning, then the bracket is fixed on the suspension through a bolt on the suspension, one brake block on the brake, namely a paired brake block assembly, is embedded into the positioning groove on the bracket for positioning, the other brake block on the brake, namely a brake block assembly, is fixedly connected to a caliper body of the brake, a brake disc on an axle is positioned between the two brake blocks, and a matching surface on the bracket is arranged opposite to the inner side surface of the brake disc. Because the locating plane is located the installation boss, and the installation boss protrusion sets up, the fixed part can not lead to the fact the interference to leaning on the location to leaning on of locating plane and suspension to make the position installation of bracket accurate, and make the position relation between bracket and the brake disc accurate, guarantee to have after the actual assembly between bracket and the brake disc and design enough tear open and trade the space. Meanwhile, the outer side edge of the fixing part does not protrude out of the matching surface, the bracket is only positioned on the inner side of the brake disc, and the bracket does not limit the outer side and two radial sides of the brake part of the brake disc, so that the interference of the bracket structure on the disassembly and assembly of the hub disc assembly is reduced, the operation of disassembling and replacing the hub disc assembly can be realized without disassembling the bracket, and the hub disc assembly can be conveniently disassembled and replaced.

In the brake bracket, pin holes are respectively formed in two sides, located on the positioning groove, of the single-side frame body, and the pin holes are formed in the positioning plane. And a sliding pin is arranged in the pin hole and is connected with a caliper body of the brake. The pin holes are formed in the positioning plane, so that the caliper body can be accurately positioned, the mounting error of the caliper body can be reduced, the limitation of the caliper body to the brake disc in the dismounting process can be reduced, and the hub disc assembly can be dismounted and replaced conveniently.

In the above brake bracket, at least one of the fixing portions has a protruding stopper on an outer side surface thereof, a fitting surface is not protruded on a front surface of the stopper, and a reverse surface of the stopper is not protruded on a reverse surface of the fixing portion.

At least one part of the clamp body is provided with a bulge corresponding to the limiting block, and the bulge is opposite to the front surface of the limiting block. The limiting block limits the floating position of the caliper body, and the stability of the brake structure is prevented from being influenced by excessive movement of the caliper body. The front surface of the limiting block does not protrude out of the matching surface, so that the limitation on the replacement of the hub plate assembly due to the arrangement of the limiting block can be avoided; the reverse side of the fixed part is not protruded out of the reverse side of the limiting block, the positioning plane protrudes out of the reverse side of the fixed part, and the reverse side of the limiting block can not protrude out of the positioning plane, so that the influence of the limiting block on the positioning accuracy of the bracket is avoided, the bracket is ensured to be accurately installed and positioned, and the hub disc assembly can be conveniently disassembled and replaced.

In the above brake bracket, the outer side surface of the fixing part is provided with a convex side edge block, the front surface of the side edge block does not protrude a matching surface, the back surface of the side edge block does not protrude a positioning plane, and the fixing part provided with the limiting block is integrally connected with the side edge block.

The setting of lateral margin piece and the integrative structural strength that links to each other all can improve the bracket of stopper. The front surface of the side edge block does not protrude out of the matching surface, so that the limitation of the arrangement of the side edge block on the replacement of the hub assembly can be avoided; the reverse side of lateral margin piece does not bulge locating plane to avoid the setting of lateral margin piece to produce the influence to the location accuracy of bracket, guarantee that the bracket installation location is accurate, make the bracket improve structural strength and continue to make the hub disk assembly tear open and trade the convenience simultaneously.

In foretell brake bracket, be provided with the notch between the bottom surface of positioning groove and the lateral wall face of positioning groove, the notch is including setting up the first groove on positioning groove lateral wall face and setting up the second groove on positioning groove bottom surface, the groove wall face of first groove is the arcwall face, the bottom surface of second groove is the plane, the lateral wall face of second groove is the arcwall face, circular arc transition between the groove wall face of first groove and the lateral wall face of second groove.

The matched brake block assembly of the brake is positioned and arranged in the positioning groove and can slide in the positioning groove, and the notch can be arranged to avoid the interference of the matched brake block assembly at the position so that the matched brake block assembly can slide smoothly. When pairing brake block assembly and brake disc contact and braking, pairing brake block assembly can receive tangential force, pair brake block assembly supports and makes positioning groove's lateral wall face receive the shearing force on positioning groove's the lateral wall face, the structural feature of first groove and second groove compares and directly sets up an arc wall between positioning groove's bottom surface and lateral wall face, can make the fixed part that is located positioning groove department have better anti-shear property, thereby reduce the possibility that the bracket produced the crackle in notch department, the life of bracket has been improved.

In the brake bracket, the fixing portion includes a top area, an inner area and an outer area, the inner side surface of the top area is a side wall surface of the positioning groove, the pin hole is formed in the top area, the inner area is connected with the bottom surface of the positioning groove, the outer area is located on the outer side of the inner area, the inner area and the outer area are both provided with mounting holes, a separation groove is formed between the inner area and the outer area, and a reinforcing plate is arranged between the inner area and the outer area in the separation groove.

The weight of the bracket can be properly reduced by the arrangement of the separation groove, and the structural strength of the fixing part can be ensured by the arrangement of the reinforcing plate. The mounting holes are dispersedly provided with the inner area and the outer area, so that stress concentration is avoided, and the bracket is firmly mounted and fixed.

A brake comprises a bracket, a brake block assembly, a pair of brake block assemblies and a clamp body capable of crossing a brake disc, the bracket comprises a single-side frame body, the top of the single-side frame body is provided with a positioning groove for positioning a matched brake block assembly, the two sides of the single-side frame body are respectively provided with a fixing part, the front surface of the fixing part is provided with a matching surface which can be opposite to the brake disc, the back surface of the fixing part is provided with a positioning plane, it is characterized in that the outer side edge of the fixing part does not protrude out of the matching surface, the reverse side of the fixing part is provided with a protruding mounting boss, the positioning plane is located on the mounting boss, the brake block assembly is fixedly connected to the caliper body, the brake block assembly can be inserted into and taken out of the caliper body through the top of the caliper body, and the matched brake block assembly can be inserted into and taken out of the positioning groove through the top of the caliper body.

During the bracket installation, the location plane pastes and leans on and fixes a position on the suspension, then fixes the bracket on the suspension through the bolt on the suspension, and the top embedding of vice body is followed to the pair brake block and is fixed in the positioning groove on the bracket, and the brake block assembly is inserted in the vice body and is fixed with the installation department from the top of vice body, and the brake disc on the axletree is located brake block assembly and is paired between the brake block assembly, and the fitting surface on the bracket sets up with the medial surface of brake disc is relative.

When the hub disc assembly or the brake disc needs to be detached and replaced, the brake pad assembly is taken out of the caliper body mounting portion through the top of the caliper body, and the paired brake pad assembly is taken out of the positioning groove from the top of the caliper body. Because the outer side edge of the fixing part does not protrude out of the matching surface, the brake block assembly positioned on the outer side of the brake disc is fixed on the caliper body, the bracket is only positioned on the inner side of the brake disc, and the bracket does not limit the outer side and two radial sides of the braking part of the brake disc, so that the interference generated by the assembly and disassembly of the wheel hub assembly by the bracket structure is reduced. After the brake block assembly is taken out, an axial dismounting and replacing space is formed between the brake disc and the mounting part, and the bottom space of the mounting part is also free of a bracket structure, so that the dismounting and replacing space occupied by the original bracket structure is increased between the brake disc and the caliper body; after the matched brake block assembly is taken out of the positioning groove, the positioning groove also provides a certain dismounting and replacing space for dismounting and replacing the hub plate assembly; meanwhile, the bracket is not limited on the radial side of the brake disc, and the positioning plane is located on the mounting boss which is arranged in a protruding mode, the fixing portion cannot be attached to the positioning plane and the suspension to cause interference, so that the bracket is accurately installed in the position, the position relation between the bracket and the brake disc is accurate, and a designed enough replacing space is formed after actual assembly between the bracket and the brake disc. Therefore, the hub disc assembly can be detached from the axle under the condition that the brake is not detached, and the hub disc assembly or the brake disc is convenient to detach and replace.

In addition, the brake block assembly in the brake is fixed on the caliper body, the outer side edge of the bracket fixing part does not protrude out of the matching surface, and the bracket only has a single-side bracket body positioned on the inner side of the brake disc, so that the weight of the brake can be reduced, and the light design is realized.

In the brake, the caliper body includes the installation department with brake block assembly fixed connection, the installation department is last to have the stationary plane towards the bracket, brake block assembly includes the backplate that leans on with the stationary plane, be provided with the fixed orifices on the backplate, insert on the stationary plane and establish and be fixed with the locating pin, the one end protrusion stationary plane of locating pin inserts in the fixed orifices, locating pin and fixed orifices clearance fit.

And the brake block assembly is fixed on the mounting part through the fixing hole and the positioning pin. During installation, the positioning pin is fixed on the installation part, then the brake block assembly is inserted into the caliper body from the top of the caliper body, the back plate is opposite to the fixing surface of the installation part, and then the back plate is close to the installation part, so that the positioning pin is inserted into the fixing hole. When the brake block assembly is disassembled, the brake block assembly moves towards the brake disc to enable the positioning pin to be separated from the fixing hole, and then the back plate is taken out from the top of the caliper body.

In the above brake, the caliper body further includes a transmission portion connected to the bracket and a bridge portion located between the mounting portion and the transmission portion, an opening is provided on a top surface of the bridge portion, the brake pad assembly and the counterpart brake pad assembly can be inserted into and taken out of the caliper body through the opening, a protruding stopper is provided on an outer side surface of at least one of the fixing portions, a protrusion corresponding to the stopper is provided on at least one of the bridge portion, and the protrusion is disposed opposite to a front surface of the stopper.

The floating position of the caliper body is limited by the limiting block, so that the stability of the brake structure is prevented from being influenced by the excessive sliding of the caliper body, and the brake works stably.

Compared with the prior art, the invention has the following advantages:

the outside border of bracket fixed part does not bulge the fitting surface, and locating plane sets up on convex installation boss, has reduced the restriction of bracket to the brake disc, has guaranteed the actual space of trading of tearing open, makes the operation of tearing open and trading the wheel hub assembly can realize not tearing open the bracket and also can go on to can make the wheel hub assembly tear open and trade the convenience. The pin holes are formed in the positioning plane, so that the clamp body and the bracket are accurately positioned, the interference of the clamp body to the hub disc assembly in the dismounting and replacing process caused by installation errors is reduced, and the hub disc assembly can be conveniently dismounted and replaced. The notch is composed of the first groove and the second groove, so that the shearing resistance of the bracket is improved, and the service life of the bracket is prolonged. The fixed part is provided with a limiting block, so that the brake is stable in structure.

Drawings

FIG. 1 is a first perspective view of the brake carrier;

FIG. 2 is a second perspective view of the brake bracket;

FIG. 3 is a diagram showing the positional relationship between the present brake and a brake disc;

FIG. 4 is a schematic view of the hub disk assembly being disassembled on the present brake;

FIG. 5 is an enlarged fragmentary view of the brake bracket recess;

fig. 6 is an exploded perspective view of the present brake.

In the figure, 1, a clamp body; 1a, an installation part; 1a1, fixed surface; 1a2, locating pins; 1b, a transmission part; 1c, a bridge; 1c1, bumps; 1d, opening; 2. a mating brake pad assembly; 3. a single-sided frame body; 4. a positioning groove; 4a, a notch; 4a1, first slot; 4a2, second slot; 5. a fixed part; 5a, a top zone; 5b, an inner zone; 5c, an outer zone; 5d, separating the groove; 5e, a reinforcing plate; 6. a mating surface; 7. positioning a plane; 8. mounting holes; 10. mounting a boss; 11. a pin hole; 12. a side edge piece; 12a, an extension; 13. a brake disc; 14. a hub; 15. an axle; 16. a limiting block; 17. a brake pad assembly; 17 a; a back plate; 17a 1; a fixing hole; 17b, a friction block; 17c, elastic pressing strips; 18. and (7) pressing a plate.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 to 6, a brake includes a transmission mechanism, a caliper 1 capable of straddling a brake disc 13, a brake pad assembly 17 for braking in cooperation with an outer side surface of the brake disc 13, a counterpart brake pad assembly 2 for braking in cooperation with an inner side surface of the brake disc 13, and a bracket, wherein the caliper 1 includes a mounting portion 1a fixedly connected to the brake pad assembly 17, a transmission portion 1b connected to the bracket, and a bridge portion 1c located between the mounting portion 1a and the transmission portion 1 b. The mounting portion 1a and the transmission portion 1b are located outside and inside the brake disc 13, respectively, and the bridge portion 1c is located on the outer peripheral side of the brake disc 13. The side of the mounting part 1a facing the transmission part 1b is provided with a protruding positioning boss, the two sides of the positioning boss and the inner side surface of the bridge part 1c are provided with gaps, the positioning boss is provided with a fixing surface 1a1 facing the transmission part 1b, the fixing surface 1a1 is a plane, and the brake block assembly 17 is fixedly connected to the fixing surface 1a 1. The setting of location boss can not receive the interference of other structures when making brake block assembly 17 and installation department 1a location installation, and the location is accurate, is favorable to the stability that the stopper used, the dismouting of the brake block assembly 17 of also being convenient for simultaneously. The transmission mechanism is arranged in the transmission part 1b, the matched brake block assembly 2 is connected with the transmission mechanism, and the bracket is connected with the transmission part 1b in a sliding way. A sliding pin is fixedly connected in the pin hole 11 of the bracket, the transmission part 1b is provided with a sliding pin hole 11, and the sliding pin is arranged in the sliding pin hole 11 in a penetrating way. An opening 1d is formed in the top surface of the bridge portion 1c, the circumferential width of the opening 1d is larger than the circumferential width of the brake pad assembly 17, the circumferential width of the opening 1d is larger than the circumferential width of the brake pad assembly 2, and the opening 1d extends in the axial direction to the mounting portion 1a and the transmission portion 1b, so that the brake pad assembly 17 and the brake pad assembly 17 can be inserted into and taken out from the opening 1 d.

The bracket comprises a single-side bracket body 3, a positioning groove 4 for positioning the matched brake block assembly 2 is formed in the top of the single-side bracket body 3, fixing parts 5 are respectively arranged on two sides of the single-side bracket body 3, an arched beam is arranged between the two fixing parts 5, and the arched beam is located at the bottom of the positioning groove 4. A notch 4a is provided between the bottom surface of the positioning groove 4 and both side wall surfaces of the positioning groove 4, and the notch 4a includes a first groove 4a1 provided on the side wall surface of the positioning groove 4 and a second groove 4a2 provided on the bottom surface of the positioning groove 4. The wall surface of the first groove 4a1 is an arc surface, the bottom surface of the second groove 4a2 is a plane, the side wall surface of the second groove 4a2 is an arc surface, and the wall surface of the first groove 4a1 and the side wall surface of the second groove 4a2 are in arc transition.

The reverse side of the fixed part 5 is provided with a convex mounting boss 10, and the mounting boss 10 is provided with a positioning plane 7. The front face of the fixing portion 5 has a mating face 6 that can be opposed to the brake disk 13, and the mating face 6 includes a mating plane that is disposed parallel to the positioning plane 7. A convex reinforcing boss is arranged at the position of the notch 4a of the positioning groove 4 on the matching plane, the top of the reinforcing boss extends to the side face of the top of the single-side frame body 3, and the inner side part of the reinforcing boss extends to the arched beam. After the reinforcing boss is arranged, the matching surface 6 further comprises a front surface of the reinforcing boss, and the front surface of the reinforcing boss is a plane and is parallel to the matching plane.

The two sides of the positioning groove 4 on the single-side frame body 3 are respectively provided with a pin hole 11, and the pin holes 11 are arranged on the positioning plane 7. Still be provided with mounting hole 8 on locating plane 7, mounting hole 8 is the screw hole, all is provided with three mounting hole 8 on every fixed part 5, and three mounting hole 8 is triangular distribution. The outer side edge of the fixing part 5 does not project beyond the mating surface 6, preferably the front face of the outer side edge of the fixing part 5 is flush with the mating plane in the mating surface 6. The outer side surface of the fixing part 5 is provided with a convex side edge block 12, the front surface of the side edge block 12 does not protrude out of the matching surface 6, and the back surface of the side edge block 12 does not protrude out of the positioning plane 7, preferably, the front surface of the side edge block 12 and the matching plane in the matching surface 6 are processed to be flush with each other into a plane, and the back surface of the side edge block 12 and the back surface of the fixing part 5 are flush with each other or the positioning plane 7. The lateral edge pieces 12 have projecting extensions 12a on their outer side, which extensions 12a further increase the structural strength of the fastening part 5. The outer side surface of at least one fixing part 5 is also provided with a convex limiting block 16, the front surface of the limiting block 16 does not protrude out of the matching surface 6, the back surface of the limiting block 16 does not protrude out of the back surface of the fixing part 5, preferably, the matching surface 6 protrudes out of the front surface of the limiting block 16, and the back surface of the fixing part 5 protrudes out of the back surface of the limiting block 16. On the fixing portion 5 having the stopper 16, the side edge piece 12 is integrally connected to the stopper 16, and the stopper 16 is located at the top of the side edge piece 12. The outer side of the stopper 16 is integrally connected to the extension 12a of the side edge block 12, and the outer side of the stopper 16 is flush with the outer side of the extension 12 a. At least one position of the bridge part 1c of the forceps body 1 is provided with a protrusion 1c1 corresponding to the limiting block 16, and one or two protrusions 1c1 can be provided. When the protrusion 1c1 is one, the protrusion 1c1 is disposed opposite to the front surface of the stopper 16. When the number of the protrusions 1c1 is two, the limit block 16 is located between the two protrusions 1c1, the protrusion 1c1 close to the mounting portion 1a is arranged opposite to the front surface of the limit block 16, and the protrusion 1c1 close to the transmission portion 1b is arranged opposite to the back surface of the limit block 16. The limiting block 16 limits the moving range of the caliper body 1, and prevents the caliper body 1 and the bracket from being separated in the use process of the brake, so that the brake is stable to use.

The fixing portion 5 includes a top portion 5a, an inner portion 5b and an outer portion 5c, the inner side surface of the top portion 5a is a side wall surface of the positioning groove 4, the inner portion 5b is connected to the bottom surface of the positioning groove 4, and the outer portion 5c is located outside the inner portion 5 b. The pin hole 11 is provided in the top area 5a, one mounting hole 8 is provided in the inner area 5b, and two mounting holes 8 are provided in the outer area 5 c. A separation groove 5d is provided between the inner region 5b and the outer region 5c, and a reinforcing plate 5e is provided in the separation groove 5d between the inner region 5b and the outer region 5 c.

The brake block assembly 17 comprises a back plate 17a attached to the fixing surface 1a1 and a friction block 17b fixed on the back plate 17a, wherein the back plate 17a is provided with a fixing hole 17a1, the fixing hole 17a1 is a blind hole, and the axial depth of the fixing hole 17a1 is not less than half of the thickness of the back plate 17a and not more than the thickness of the back plate 17 a. A positioning pin 1a2 is inserted and fixed on the fixing surface 1a1, one end of the positioning pin 1a2 protrudes out of the fixing surface 1a1 and is inserted into the fixing hole 17a1, and the positioning pin 1a2 is in clearance fit with the fixing hole 17a 1. At least two positioning pins 1a2 are provided, and the fixing holes 17a1 are provided in one-to-one correspondence with the positioning pins 1a 2. A pressing plate 18 is detachably fixed on the top of the clamp body 1, one end of the pressing plate 18 is inserted into the transmission part 1b, and the other end of the pressing plate 18 is fixedly connected to the top surface of the installation part 1a through a bolt. Or the two ends of the pressure plate 18 are fixedly connected to the transmission part 1b and the mounting part 1a through bolts respectively. The pressure plate 18 acts on the brake shoe subassembly 2 to keep the brake shoe subassembly 2 abutting against the bottom surface of the positioning groove 4, and the pressure plate 18 acts on the brake shoe subassembly 17 to make the top side surface of the fixing hole 17a1 abut against the positioning pin 1a2, so that the brake shoe subassembly 17 cannot fall out of the positioning pin 1a 2. Two lugs are arranged on the top of the back plate 17a, an elastic pressing strip 17c which is arched in the direction deviating from the top surface of the back plate 17a is fixed between the two lugs, and the pressing plate 18 is abutted against the top of the elastic pressing strip 17 c. Or a protruded pressing block is arranged on a back plate 17a of the braking block assembly 17, a supporting plane corresponding to the pressing block is arranged on the mounting part 1a, and the pressing block is abutted against the supporting plane under the action of the pressing plate 18 and the elastic pressing strip 17 c. The fixing surface 1a1 of the mounting portion 1a has positioning blocks on both sides of the back plate 17a, respectively, which are in contact with the back plate 17a, and the brake pad assembly 17 can be inserted into and removed from between the two positioning blocks.

The brake disc 13 and the hub 14 are fixedly connected through a flange structure, the hub 14 is mounted on the axle 15 through an inner bearing and an outer bearing, and the whole formed by the brake disc 13 and the hub 14 is called a hub assembly. After the assembly of the brake is completed, the brake is mounted to the suspension by the bracket. When the bracket is installed, the positioning plane 7 is abutted against the suspension, and then the bolt on the suspension is matched with the mounting hole 8 to fix the bracket on the suspension. After the brake is installed, the brake disc 13 on the axle 15 is located between the brake block assembly 17 and the paired brake block assembly 2, the paired brake block assembly 2 is located in the positioning groove 4 of the bracket and is connected with the transmission mechanism, the brake block assembly 17 is fixed on the installation part 1a of the caliper body 1, the matching surface 6 on the bracket is arranged opposite to the inner side surface of the brake disc 13, and a certain gap is formed between the matching surface 6 and the matching surface 6 to prevent the brake disc 13 from rubbing against the matching surface 6. Because the positioning plane 7 is positioned on the mounting boss 10, and the mounting boss 10 protrudes out of the reverse side of the fixing part 5, the fixing part 5 cannot interfere with the positioning plane 7 and the suspension in positioning, so that the bracket is accurately mounted in position, the position relation between the bracket and the brake disc 13 is accurate, and a designed enough replacing space is ensured after the bracket and the brake disc 13 are actually assembled. Meanwhile, the matching surface 6 is not protruded at the outer side edge of the fixing part 5, the bracket is only positioned at the inner side of the brake disc 13, and the bracket does not limit the outer side and two radial sides of the braking part of the brake disc 13, so that the interference of the bracket structure on the assembly and disassembly of the hub disc assembly is reduced, the operation of disassembling and replacing the hub disc assembly can be realized without disassembling the bracket, and the hub disc assembly can be conveniently disassembled and replaced. In addition, the pin holes 11 are formed in the positioning plane 7, so that the position relation between the caliper body 1 and the bracket is accurate, the installation error of the caliper body 1 is reduced, the limitation generated in the process of assembling and disassembling the hub disc assembly by the caliper body 1 is reduced, and the hub disc assembly is convenient to disassemble and replace. Because the brake block assembly 17 in the brake is fixed on the mounting part 1a of the caliper body 1, and the outer side edge of the bracket fixing part 5 does not protrude out of the matching surface 6, the bracket only has the single-side frame body 3 positioned on the inner side of the brake disc 13, the weight of the brake can be reduced, and the light-weight design is realized.

As shown in fig. 3, 4, and 6, the hub disc assembly can be removed without removing the bracket. When the hub disc assembly is disassembled, the pressure plate 18 is firstly disassembled from the caliper body 1, then the brake block assembly 17 and the matched brake block assembly 2 are taken out from the top opening 1d of the caliper body 1, then the inner ring of the outer bearing between the hub 14 and the axle 15 is taken out, then the hub disc assembly is moved outwards and downwards for a certain distance, the inner ring and the outer ring of the inner bearing between the hub 14 and the axle 15 are separated, and then the hub disc assembly is taken out along the axle 15 while continuously inclining. The reverse operation is sufficient when mounting the hub plate assembly. In the dismounting process, in order to ensure that the clearance between the mounting part 1a and the brake disc 13 is enough, the hydraulic pressure on the transmission mechanism can be firstly removed, so that the caliper body 1 is returned to the initial position, the brake block assembly 17 can be guaranteed to be dismounted from the positioning pin 1a2, after the dismounting is finished, the transmission mechanism is returned to the hydraulic pressure state, and the brake block assembly 17 and the brake disc 13 are in the minimum clearance position after the caliper body 1 is moved, so that the brake block assembly 17 is prevented from falling out of the positioning pin 1a 2.

In the above description, the hub disk assembly is entirely removed from the axle 15, but it is needless to say that in the actual removal process, the hub 14 and the brake disk 13 may be removed from the axle 15 after the hub 14 is removed from the axle 15, and then the brake disk 13 may be removed from the axle 15 according to the hub disk assembly removal method. The reverse operation is sufficient when mounting the hub plate assembly. In addition, positioning side surfaces are arranged on two sides of a back plate 17a of the brake block assembly 17, and a positioning bottom surface is arranged on the bottom surface of the back plate 17a, so that the brake block assembly 17 can be mounted in the positioning groove 4 of the bracket by means of the positioning side surfaces, the positioning side surfaces are abutted against the side wall surfaces of the positioning groove 4, and the positioning bottom surface is abutted against the bottom surface of the positioning groove 4.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a brake bracket, includes unilateral support body (3), the top of unilateral support body (3) has positioning groove (4) that are used for the pairing brake block assembly (2) on the space brake, fixed part (5) have respectively on unilateral support body (3) both sides, fitting surface (6) that can be relative with brake disc (13) have on the front of fixed part (5), locating plane (7) have on the reverse side of fixed part (5), its characterized in that, the outside border of fixed part (5) does not bulge fitting surface (6), convex installation base (10) have on the reverse side of fixed part (5), locating plane (7) are located installation base (10).

2. The brake carrier according to claim 1, characterized in that the single-sided frame body (3) is provided with pin holes (11) on both sides of the positioning groove (4), respectively, and the pin holes (11) are opened on the positioning plane (7).

3. The brake carrier according to claim 1, characterized in that at least one of the fastening portions (5) has a protruding stopper (16) on its outer side, the front side of the stopper (16) does not protrude beyond the mating surface (6), and the back side of the stopper (16) does not protrude beyond the back side of the fastening portion (5).

4. The brake carrier according to claim 3, characterized in that the fixing part (5) has on its outer side a projecting side edge piece (12), the front side of the side edge piece (12) does not project beyond the mating surface (6), the back side of the side edge piece (12) does not project beyond the positioning plane (7), the fixing part (5) provided with a stop piece (16) being integrally connected to the side edge piece (12) by the stop piece (16).

5. The brake carrier according to any of claims 1 to 4, characterized in that a notch (4a) is provided between the bottom surface of the positioning groove (4) and the side wall surface of the positioning groove (4), the notch (4a) comprises a first groove (4a1) provided on the side wall surface of the positioning groove (4) and a second groove (4a2) provided on the bottom surface of the positioning groove (4), the groove wall surface of the first groove (4a1) is an arc surface, the bottom surface of the second groove (4a2) is a plane, the side wall surface of the second groove (4a2) is an arc surface, and the groove wall surface of the first groove (4a1) and the side wall surface of the second groove (4a2) are in arc transition.

6. The brake carrier according to claim 2, characterized in that the fixing portion (5) comprises a top section (5a), an inner section (5b) and an outer section (5c), the inner side of the top section (5a) being the side wall surface of the positioning recess (4), the pin hole (11) being provided on the top section (5a), the inner section (5b) being connected to the bottom surface of the positioning recess (4), the outer section (5c) being located outside the inner section (5b), the inner section (5b) and the outer section (5c) each being provided with a mounting hole (8), a separation groove (5d) being provided between the inner section (5b) and the outer section (5c), and a reinforcement plate (5e) being provided in the separation groove (5d) between the inner section (5b) and the outer section (5 c).

7. A brake, including bracket, brake block assembly (17), mate brake block assembly (2) and can span in the pincers body (1) of brake disc (13), the bracket includes unilateral support body (3), the top of unilateral support body (3) has the positioning groove (4) that is used for positioning and mates brake block assembly (2), unilateral support body (3) have fixed part (5) on both sides respectively, have fitting surface (6) that can be relative with brake disc (13) on the front of fixed part (5), have locating plane (7) on the reverse side of fixed part (5), characterized by, the outside border of fixed part (5) does not bulge fitting surface (6), have convex installation boss (10) on the reverse side of fixed part (5), locating plane (7) are located installation boss (10), brake block assembly (17) fixed connection is on pincers body (1), the brake block assembly (17) can be inserted into and taken out of the caliper body (1) through the top of the caliper body (1), and the matched brake block assembly (2) can be inserted into and taken out of the positioning groove (4) through the top of the caliper body (1).

8. The brake of claim 7, characterized in that the caliper body (1) comprises a mounting portion (1a) fixedly connected with the brake block assembly (17), the mounting portion (1a) is provided with a fixing surface (1a1) facing the bracket, the brake block assembly (17) comprises a back plate (17a) abutted against the fixing surface (1a1), the back plate (17a) is provided with a fixing hole (17a1), the fixing surface (1a1) is inserted and fixed with a positioning pin (1a2), one end of the positioning pin (1a2) protrudes out of the fixing surface (1a1) and is inserted into the fixing hole (17a1), and the positioning pin (1a2) is in clearance fit with the fixing hole (17a 1).

9. The brake of claim 8, wherein the caliper body (1) further comprises a transmission part (1b) connected with the bracket and a bridge part (1c) positioned between the mounting part (1a) and the transmission part (1b), an opening (1d) is arranged on the top surface of the bridge part (1c), the brake block assembly (17) and the counterpart brake block assembly (2) can be inserted into and taken out of the caliper body (1) through the opening (1d), a protruding limiting block (16) is arranged on the outer side surface of at least one fixing part (5), a protrusion (1c1) corresponding to the limiting block (16) is arranged on at least one position of the bridge part (1c), and the protrusion (1c1) is arranged opposite to the front surface of the limiting block (16).