A brake disc with high connection strength

Abstract

The utility model relates to the technical field of motorcycle brake technology, and in particular to a brake disc with high connection strength, comprising a fixed disc body and a brake disc body, the fixed disc body and the brake disc body are detachably connected through a connecting component, the brake disc body comprises an inner ring surface, a plurality of protrusions are arranged at intervals on the inner ring surface, a first inclined surface is arranged on the end surface of the protrusion close to the center of the inner ring surface, a first notch is arranged on the first inclined surface, a second inclined surface is arranged at the outer edge of the fixed disc body corresponding to the first inclined surface, and a second notch corresponding to the first notch is arranged on the second inclined surface, the first notch and the second notch can form a mounting hole for installing the connecting component, and the beneficial effects of the utility model are: providing a brake disc with high connection strength that can improve service life.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle brakes, in particular to a brake disc with high connection strength. Background Art

[0002] The brake disc, in simple terms, is a round plate that rotates when the car is moving. The brake caliper clamps the brake disc body to generate braking force. When the brake is applied, it clamps the brake disc to slow down or stop the car. The brake disc has a good braking effect and is easier to maintain than drum brakes. Most of the existing motorcycle brake disc bodies are composed of an inner fixed disc body and an outer brake disc. A motorcycle brake disc with publication number "CN218152098 U" includes a fixed disc and a brake disc. A plurality of semicircular first connecting ring grooves are provided on the inner surface of the brake disc, and second connecting ring grooves corresponding to each of the first connecting ring grooves are provided on the outer surface of the fixed disc. A connecting assembly for fixedly connecting the fixed disc and the brake disc is provided between each first connecting ring groove and the corresponding second connecting ring groove. The lower end of the connecting assembly abuts against the lower surfaces of the fixed disc and the brake disc, and the upper end of the connecting assembly is locked and connected to the fixed disc and the brake disc.

[0003] The connection surfaces of the above-mentioned documents and the existing brake discs on the market that are installed with the fixed discs through the connection components are all flat, so that the brake discs may experience stress concentration during use, which may cause fatigue cracks and reduce the service life of the brake discs.

[0004] In addition, the above document lacks positioning during the assembly process of the fixed disc and the brake disc, making it inconvenient for the staff to assemble quickly during the assembly. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a brake disc with high connection strength which can prolong the service life in view of the deficiencies of the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a brake disc with high connection strength, comprising a fixed disc body and a brake disc body, wherein the fixed disc body and the brake disc body are detachably connected via a connecting assembly, and characterized in that: the brake disc body comprises an inner annular surface, a plurality of raised portions are arranged at intervals on the inner annular surface, a first inclined surface is arranged on the end surface of the raised portion close to the center of the inner annular surface, a first notch is arranged on the first inclined surface, a second inclined surface is arranged at the outer edge of the fixed disc body corresponding to the first inclined surface, and a second notch corresponding to the first notch is arranged on the second inclined surface, and the first notch and the second notch can form a mounting hole for installing the connecting assembly.

[0007] Adopting the above-mentioned technical scheme: Compared with the prior art in which the connecting surface between the fixed disc body and the brake disc body is set with a plane, the utility model provides a raised portion for processing the first notch on the inner annular surface, and the end face of the raised portion is provided with a first inclined surface, and at the same time, the outer edge of the fixed disc body is provided with a second inclined surface corresponding to the first inclined surface. During the assembly process, it is only necessary to align the first notch with the second notch to form a mounting hole for installing the connecting component, and the installation can be completed through the connecting component. The setting of the first and second inclined surfaces reduces the possibility of stress concentration during use, greatly improves the connection strength, and improves reliability.

[0008] A further configuration of the utility model is that positioning grooves are provided between the adjacent protrusions, and the fixed disc body is provided with positioning blocks extending between the second notches toward the brake disc body, and the positioning blocks can be located in the positioning grooves.

[0009] With the above technical solution, during use, positioning can be completed by simply placing the positioning blocks one by one in the positioning grooves, so that the first notch and the second notch are combined to form a mounting hole, which is convenient for workers to assemble and improves assembly efficiency.

[0010] A further configuration of the utility model is that: a first weight-reducing groove is provided through the positioning block, and a plurality of second weight-reducing grooves are provided through the fixed disc body and are spaced apart along the circumferential direction.

[0011] By adopting the above technical solution, the first weight-reducing groove and the second weight-reducing groove are provided, so that the weight of the brake disc body can be greatly reduced, the cost can be reduced, and a lightweight design can be achieved, which is lighter than the brake disc in the prior art.

[0012] A further configuration of the utility model is that the connecting assembly includes a rivet, and the rivet can connect the fixed disc body and the brake disc body through the mounting hole. The rivet includes a rivet body, a rivet cover and a corrugated gasket arranged in the rivet cover, and the rivet body can be arranged through the rivet cover.

[0013] The above technical solution is adopted: after the fixed disc body and the brake disc are assembled, the rivet is installed into the mounting hole formed by the first and second notches to complete the installation between the fixed disc body and the brake disc body. At the same time, the corrugated gasket causes an elastic movable gap to be left in the axial position between the fixed disc body and the brake disc body. During the braking process, the brake disc body is guaranteed to have a certain adjustment position space in the axial direction, so that the effective area in contact with the brake pad will be larger, further improving the braking efficiency.

[0014] A further configuration of the utility model is: a lower abutment platform abutting against a fixed disc body and one end surface of a brake disc body is provided at the bottom of the rivet body, an upper abutment platform abutting against a rivet cover is provided at the top of the rivet body, the rivet cover is located between the upper abutment platform and the other end surface of the fixed disc body and the brake disc body, and a first annular groove for installing a corrugated gasket is provided at the bottom of the rivet cover.

[0015] The above technical solution is adopted: the rivet fixes the fixed disc body and the second end face of the brake disc body through the lower abutment platform, and then the upper abutment platform at the upper end of the rivet presses the rivet cover downward to make the lower surface of the rivet cover abut against the fixed disc body and the first end face to avoid looseness between the fixed disc body and the brake disc body. At the same time, the setting of the first annular groove facilitates the installation of the corrugated gasket.

[0016] The utility model is further configured as follows: a second annular groove is provided on the outer wall of the rivet body near the upper abutment platform, a first step is provided on the top of the rivet cover, the first step is located in the second annular groove, and an upper end surface of the first step abuts against the upper abutment platform.

[0017] By adopting the above technical solution, the second annular groove and the first step are arranged to facilitate the installation of the rivet cover and the rivet body, thereby avoiding looseness between the fixed disc body and the brake disc body.

[0018] A further configuration of the utility model is that the brake disc body also includes a first end face and a second end face, the first end face is provided with a plurality of first through holes spaced evenly apart along its circumferential direction, the first through holes are flared from the first end face to the second end face, the second end face is provided with a plurality of second through holes spaced evenly apart along its circumferential direction between the first through holes, the second through holes are flared from the second end face to the first end face.

[0019] The above technical solution is adopted: compared with the prior art in which the through holes on the brake disc body are vertical through holes on both end faces, the utility model arranges the first and second through holes in a flared shape to make the air circulation smoother, and air enters from the opening ends with larger diameters of the first and second through holes, and air exits from the opening ends with smaller diameters, which can quickly take away the heat generated by the brake disc body during the braking process, achieve better heat dissipation effect, improve cooling performance, and delay thermal attenuation of the brake pad.

[0020] A further configuration of the present invention is that the side walls of the first through hole and the second through hole are arranged in an inclined surface, and the opening axes of both ends of the first through hole and the second through hole are arranged parallel to each other.

[0021] The above technical solution is adopted: the first and second through holes are designed as oblique tapered holes, which increase friction and improve braking efficiency. At the same time, due to the inclined wall of the oblique tapered hole, it is difficult for particles to stay in the hole, thereby enhancing the self-cleaning ability. In addition, due to the enhanced self-cleaning ability, the braking noise is further reduced.

[0022] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 This is a schematic diagram of the rivet-free structure of the utility model.

[0025] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0026] Figure 4 This is an exploded view of the utility model.

[0027] Figure 5 For this utility model Figure 5 Enlarged view of point B in the middle.

[0028] Figure 6 It is a schematic diagram of the structure of the rivet cover of the utility model from different viewing angles.

[0029] Figure 7 This is a cross-sectional view of the rivet of the utility model.

[0030] Figure 8 It is a cross-sectional view of the utility model and an enlarged view of point C.

[0031] Fig. 9 It is a schematic diagram of the overall structure of the utility model from different viewing angles.

[0032] Explanation of reference numerals: fixed disc body 1, second inclined surface 11, second notch 111, positioning block 12, first weight reducing groove 121, second weight reducing groove 13, brake disc body 2, first end face 21, first through hole 211, second end face 22, second through hole 221, inner annular surface 23, protrusion 231, first inclined surface 231a, first notch 231b, positioning groove 232, mounting hole 3, rivet 4, rivet body 41, lower abutment platform 411, upper abutment platform 412, second annular groove 413, rivet cover 42, first annular groove 421, first step 422, corrugated gasket 43. DETAILED DESCRIPTION

[0033] This specific embodiment and the drawings of the disclosed embodiments only involve structures related to the disclosed embodiments, and other structures may refer to the general design. After reading this specification, those skilled in the art may make modifications to this embodiment without creative contribution as needed, but as long as they are within the scope of the claims of the utility model, they are protected by the patent law.

[0034] like Figure 1-9A brake disc with high connection strength shown in the figure includes a fixed disc body 1 and a brake disc body 2, which are detachably connected to each other through a connecting assembly. The brake disc body 2 includes an inner annular surface 23, and a plurality of protrusions 231 are arranged at intervals on the inner annular surface 23. The end surface of the protrusion 231 close to the center of the inner annular surface 23 is provided with a first inclined surface 231a, and the first inclined surface 231a is provided with a first notch 231b. A second inclined surface 11 is provided at the outer edge of the fixed disc body 1 corresponding to the first inclined surface 231a, and a second notch 111 corresponding to the first notch 231b is provided on the second inclined surface 11. The first notch 231b and the second notch 111 can form a mounting hole 3 for installing the connecting assembly.

[0035] like Figure 1-4 As shown, positioning grooves 232 are provided between adjacent protrusions 231, and a positioning block 12 is extended toward the brake disc body 2 between the second notches 111 of the fixed disc. The positioning block 12 can be located in the positioning groove 232, and a first weight-reducing groove 121 is provided through the positioning block 12. A plurality of second weight-reducing grooves 13 are provided through the fixed disc body 1 and are spaced apart in a circumferential direction.

[0036] like Figure 4-7 The connecting assembly shown includes a rivet 4, which can connect the fixed disc body 1 and the brake disc body 2 through the mounting hole 3. The rivet 4 includes a rivet body 41, a rivet cover 42 and a corrugated gasket 43 arranged in the rivet cover 42. The rivet body 41 can be arranged through the rivet cover 42; Figure 6-7 The rivet body 41 shown has a lower abutment platform 411 at the bottom that abuts against the fixed disc body 1 and one end surface of the brake disc body 2, and an upper abutment platform 412 abutting against the rivet cover 42 is provided at the top of the rivet body 41. The rivet cover 42 is located between the upper abutment platform 412 and the other end surface of the fixed disc body 1 and the brake disc body 2. A first annular groove 421 for installing the corrugated gasket 43 is provided at the bottom of the rivet cover 42, and a second annular groove 413 is provided on the outer wall of the rivet body 41 near the upper abutment platform 412. A first step 422 is provided at the top of the rivet cover 42, and the first step 422 is located in the second annular groove 413, and the upper end surface of the first step 422 abuts against the upper abutment platform 412.

[0037] like Figure 1 , 2The brake disc body 2 shown in 9 also includes a first end face 21 and a second end face 22. The first end face 21 has a plurality of first through holes 211 evenly distributed along its circumferential direction. The first through holes 211 are expanded from the first end face 21 to the second end face 22. The second end face 22 has a plurality of second through holes 221 evenly distributed between the first through holes 211 along its circumferential direction. The second through holes 221 are expanded from the second end face 22 to the first end face 21. The side walls of the first through holes 211 and the second through holes 221 are inclined, and the opening axes of the first through holes 211 and the second through holes 221 at both ends are parallel to each other.

[0038] During use, compared with the prior art in which the connecting surface between the fixed disc body 1 and the brake disc body 2 is set with a plane, the utility model provides a raised portion 231 for processing the first notch 231b on the inner annular surface 23, and the end face of the raised portion 231 is provided with a first inclined surface 231a, and at the same time, the outer edge of the fixed disc body 1 is provided with a second inclined surface 11 corresponding to the first inclined surface 231a. During the assembly process, it is only necessary to align the first notch 231b with the second notch 111 to form a mounting hole 3 for installing the rivet 4, and the installation can be completed by the rivet 4. The setting of the first and second inclined surfaces 11 reduces the possibility of stress concentration during use, greatly improves the connection strength, and improves reliability. At the same time, through the setting of the positioning block 12 and the positioning groove 232, during use, it is only necessary to correspond the positioning block 12 one by one to the positioning groove 232 to complete the positioning, so that the first notch 231b and the second notch 111 are combined to form the mounting hole 3, which is convenient for the staff to assemble and improves the assembly efficiency.

Claims

1. A brake disc with high connection strength, comprising a fixed disc body and a brake disc body, wherein the fixed disc body and the brake disc body are detachably connected via a connecting assembly, characterized in that: The brake disc body includes an inner annular surface, on which a plurality of raised portions are arranged at intervals, a first inclined surface is arranged on the end surface of the raised portion close to the center of the inner annular surface, a first notch is arranged on the first inclined surface, a second inclined surface is arranged at the outer edge of the fixed disc body corresponding to the first inclined surface, and a second notch is arranged on the second inclined surface corresponding to the first notch, and the first notch and the second notch can form an installation hole for installing the connecting component.

2. A brake disc with high connection strength according to claim 1, characterized in that: Positioning grooves are arranged between adjacent protrusions, and the fixed disc body is provided with positioning blocks extending between the second notches toward the brake disc body, and the positioning blocks can be located in the positioning grooves.

3. A brake disc with high connection strength according to claim 2, characterized in that: The positioning block is provided with a first weight-reducing groove through it, and the fixed disc body is provided with a plurality of second weight-reducing grooves that are arranged through the fixed disc body and are spaced apart along the circumferential direction.

4. A brake disc with high connection strength according to any one of claims 1 to 3, characterized in that: The connecting assembly includes a rivet, and the rivet can connect the fixed disc body and the brake disc body through the mounting hole. The rivet includes a rivet body, a rivet cover and a corrugated gasket arranged in the rivet cover. The rivet body can be arranged through the rivet cover.

5. A brake disc with high connection strength according to claim 4, characterized in that: The bottom of the rivet body is provided with a lower abutment platform abutting against the fixed disc body and one end surface of the brake disc body, and the top of the rivet body is provided with an upper abutment platform abutting against the rivet cover. The rivet cover is located between the upper abutment platform and the other end surface of the fixed disc body and the brake disc body. The bottom of the rivet cover is provided with a first annular groove for installing a corrugated gasket.

6. A brake disc with high connection strength according to claim 5, characterized in that: A second annular groove is formed on the outer wall of the rivet body near the upper abutment platform, and a first step is formed on the top of the rivet cover. The first step is located in the second annular groove, and the upper end surface of the first step abuts against the upper abutment platform.

7. A brake disc with high connection strength according to claim 1 or 2 or 3 or 5 or 6, characterized in that: The brake disc body also includes a first end face and a second end face, the first end face has a plurality of first through holes evenly distributed along its circumferential direction, the first through holes are flared from the first end face to the second end face, the second end face has a plurality of second through holes evenly distributed along its circumferential direction between the first through holes, the second through holes are flared from the second end face to the first end face.

8. A brake disc with high connection strength according to claim 7, characterized in that: The side walls of the first through hole and the second through hole are arranged in an inclined surface, and the opening axes of both ends of the first through hole and the second through hole are arranged parallel to each other.

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