Brake disc with good heat dissipation effect

Abstract

The utility model relates to the technical field of motorcycle braking, in particular to a brake disc with a good heat dissipation effect, which comprises a fixed disc body and a brake disc body, the fixed disc body is detachably connected with the brake disc body through a connecting assembly, and the brake disc body comprises a first end face and a second end face. A plurality of first through holes are evenly distributed in the first end face at intervals in the circumferential direction of the first end face, the first through holes are flared from the first end face to the second end face, a plurality of second through holes are evenly distributed in the positions, located between the first through holes, of the second end face in the circumferential direction of the second end face, and the second through holes are flared from the second end face to the first end face. The brake disc has the advantages that the heat dissipation efficiency and the cooling performance can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle brakes, in particular to a brake disc with good heat dissipation effect. Background Art

[0002] The brake disc, in simple terms, is a round disc that rotates when the car is moving. The brake caliper clamps the brake disc 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 discs are composed of an inner fixed disc body and an outer brake disc body. 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 through holes for heat dissipation provided in the above-mentioned documents and existing brake discs on the market are often vertical through holes at both end surfaces, which leads to poor air circulation, thereby reducing the heat dissipation of the brake disc and causing thermal attenuation of the brake pad. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a brake disc with good heat dissipation effect, which can improve the heat dissipation efficiency and the cooling performance, in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a brake disc with good heat dissipation effect, 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 a first end face and a second end face, a plurality of first through holes are evenly distributed along the circumferential direction of the first end face, the first through holes are flared from the first end face to the second end face, a plurality of second through holes are evenly distributed along the circumferential direction of the second end face between the first through holes, the second through holes are flared from the second end face to the first end face.

[0006] 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.

[0007] A further configuration of the utility model is that the side walls of the first through hole and the second through hole are inclined, and the opening axes of both ends of the first through hole and the second through hole are parallel to each other. The first through hole and the second through hole are located on the brake disc body, and the aperture gradually increases in an arc direction extending from the inside to the outside.

[0008] 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.

[0009] A further configuration of the utility model is that a cleaning groove is provided on the first end surface and the second end surface between the first through hole and the second through hole.

[0010] The above technical solution is adopted: through the setting of the cleaning groove, dirt can be removed during high-speed rotation, the braking friction is increased, and the braking efficiency is further improved; in addition, it also has the wear limit marking function and increases the dynamic and aesthetic effect.

[0011] A further configuration of the utility model is that the brake disc body also includes an inner annular surface, a plurality of first notches are arranged at intervals on the inner annular surface, a second notch corresponding to the first notch is arranged on the edge of the fixed disc body, the first notch and the second notch form a mounting hole, and a rivet is arranged in the mounting hole for connecting the brake disc to the fixed disc body.

[0012] The above technical solution is adopted: through the setting of the first notch and the second notch, when 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. The first and second notches and the rivet form the above-mentioned connecting assembly.

[0013] A further configuration of the utility model is that the rivet comprises a rivet body, a rivet cover and a corrugated gasket, and the rivet body can be arranged through the rivet cover; a lower abutment platform for abutting against the second end face and the end face of the fixed disk body located on the same end face as the second end face is provided at the bottom of the rivet body, an upper abutment platform abutting against the rivet cover is provided at the top of the rivet body, the rivet cover is located between the upper abutment platform and the fixed disk body and the first end face, and a first annular groove for installing the corrugated gasket is provided at the bottom of the rivet cover.

[0014] 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, so that the lower surface of the rivet cover abuts 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. Preferably, 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, it is ensured that the brake disc body has 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.

[0015] 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.

[0016] 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.

[0017] The utility model is further configured as follows: fan-shaped grooves are arranged on the inner annular surface between the first notches, protrusions for processing the first notches are arranged between adjacent fan-shaped grooves, and fan-shaped blocks corresponding to the fan-shaped grooves are arranged on the edge of the fixed disk.

[0018] The above technical solution is adopted: through the arrangement of the fan-shaped grooves and the corresponding fan-shaped blocks, it is convenient to fix the disc body and the brake disc body for installation and positioning, and at the same time, the structure further improves the strength of the connection structure.

[0019] A further configuration of the utility model is that: a plurality of evenly distributed weight-reducing grooves are provided through the fixed disc body.

[0020] By adopting the above technical solution: through the provision of the weight-reducing groove, the overall mass of the brake disc can be reduced, the cost can be reduced, and a lightweight design can be achieved.

[0021] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 It is a cross-sectional view of the utility model and an enlarged view of point A.

[0024] Figure 3 These are cross-sectional views of different degrees and an enlarged view of point B of the present invention.

[0025] Figure 4 This is an exploded view of the utility model.

[0026] Figure 5 For this utility model Figure 4 Enlarged view of point C in the middle.

[0027] Figure 6 It is a schematic diagram of the structure of the rivet cover of the utility model from different viewing angles.

[0028] Figure 7 It is a schematic diagram of the overall structure of the utility model from different viewing angles.

[0029] Figure 8 This is a schematic diagram of the rivet-free structure of the utility model.

[0030] Explanation of reference numerals: fixed disc body 1, second notch 11, sector block 12, weight reduction 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, first notch 231, sector groove 232, protrusion 233, cleaning groove 3, mounting hole 4, rivet 5, rivet body 51, lower abutment platform 511, upper abutment platform 512, second annular groove 513, rivet cover 52, first annular groove 521, first step 522, corrugated gasket 53. DETAILED DESCRIPTION

[0031] 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.

[0032] like Figure 1-8 A brake disc with good heat dissipation effect is shown, comprising a fixed disc body 1 and a brake disc body 2, the fixed disc body 1 and the brake disc body 2 are detachably connected through a connecting assembly, the brake disc body 2 comprises a first end face 21 and a second end face 22, a plurality of first through holes 211 are evenly distributed along the circumferential direction of the first end face 21, the first through holes 211 are flared from the first end face 21 to the second end face 22, a plurality of second through holes 221 are evenly distributed along the circumferential direction of the second end face 22 between the first through holes 211, the second through holes 221 are flared from the second end face 22 to the first end face 21.

[0033] like Figure 2 The side walls of the first through hole 211 and the second through hole 221 are inclined, and the opening axes of the first through hole 211 and the second through hole 221 are parallel to each other. The apertures of the first through hole 211 and the second through hole 221 located on the brake disc body 2 gradually increase in the arc direction extending from the inside to the outside; Figure 1 The first end surface 21 and the second end surface 22 shown are provided with a cleaning groove 3 between the first through hole 211 and the second through hole 221 .

[0034] like Figure 4 , 8 The brake disc body 2 shown also includes an inner annular surface 23, on which a plurality of first notches 231 are spaced apart. The edge of the fixed disc body 1 is provided with a second notch 11 corresponding to the first notch 231. The first notch 231 and the second notch 11 form a mounting hole 4, in which a rivet 5 is provided for connecting the brake disc to the fixed disc body 1.

[0035] like Figure 3 The rivet 5 shown includes a rivet body 51, a rivet cover 52 and a corrugated gasket 53. The rivet body 51 can be set through the rivet cover 52. A lower abutment platform 511 is provided at the bottom of the rivet body 51 for abutting the second end face 22 and the end face of the fixed disk body 1 located on the same end face 22. An upper abutment platform 512 abutting the rivet cover 52 is provided at the top of the rivet body 51. The rivet cover 52 is located between the upper abutment platform 512 and the fixed disk body 1 and the first end face 21. A first annular groove 521 for installing the corrugated gasket 53 is provided at the bottom of the rivet cover 52. A second annular groove 513 is provided on the outer wall of the rivet body 51 near the upper abutment platform 512. A first step 522 is provided at the top of the rivet cover 52. The first step 522 is located in the second annular groove 513, and the upper end face of the first step 522 abuts against the upper abutment platform 512.

[0036] like Figure 1 , 4 On the inner annular surface 23 shown in FIG. 7 , fan-shaped grooves 232 are provided between the first notches 231 , and protrusions 233 for processing the first notches 231 are provided between adjacent fan-shaped grooves 232 , and fan-shaped blocks 12 corresponding to the fan-shaped grooves 232 are provided on the edge of the fixed disk body 1 , and a plurality of evenly distributed weight-reducing grooves 13 are penetrated on the fixed disk body 1 .

[0037] During use, compared with the prior art in which the through holes on the brake disc body 2 are vertical through holes at both end faces, the utility model provides the first and second through holes 221 in a flared shape, so that air circulation is smoother, and air is taken in from the opening ends with larger diameters of the first and second through holes 221, and air is exhausted from the opening ends with smaller diameters. In addition, the first and second through holes 221 are oblique tapered holes, which can quickly take away the heat generated by the brake disc body 2 during the braking process, thereby achieving better heat dissipation effect, improving cooling performance, delaying thermal attenuation of the brake pad, and having better self-cleaning function of the oblique tapered holes, so that dust, sand and other dirt can be automatically and quickly removed during the braking process. At the same time, the brake disc body 2 is connected and fixed to the fixed disc body 1 with rivets 5, and a corrugated gasket 53 is built in. During braking, it is ensured that the brake disc body 2 has a certain adjustment position space in the axial direction, so that the effective area in contact with the brake pad is larger, further improving the braking efficiency.

Claims

1. A brake disc with good heat dissipation effect, 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 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.

2. A brake disc with good heat dissipation effect according to claim 1, characterized in that: The side walls of the first through hole and the second through hole are inclined, and the opening axes of the first through hole and the second through hole at both ends are parallel to each other. The first through hole and the second through hole are located on the brake disc body and the aperture gradually increases in the arc direction extending from the inside to the outside.

3. A brake disc with good heat dissipation effect according to claim 2, characterized in that: The first end surface and the second end surface are provided with a cleaning groove between the first through hole and the second through hole.

4. A brake disc with good heat dissipation effect according to any one of claims 1 to 3, characterized in that: The brake disc body also includes an inner annular surface, on which a plurality of first notches are arranged at intervals, and an edge of the fixed disc body is provided with second notches corresponding to the first notches, and the first notches and the second notches form a mounting hole, in which a rivet is arranged for connecting the brake disc to the fixed disc body.

5. A brake disc with good heat dissipation effect according to claim 4, characterized in that: The rivet includes a rivet body, a rivet cover and a corrugated gasket, and the rivet body can be set through the rivet cover; the bottom of the rivet body is provided with a lower abutment platform for abutting with the second end face and the end face of the fixed disk body located on the same end face as the second end face, and the top of the rivet body is provided with an upper abutment platform abutting with the rivet cover, and the rivet cover is located between the upper abutment platform and the fixed disk body and the first end face, and the bottom of the rivet cover is provided with a first annular groove for installing the corrugated gasket.

6. A brake disc with good heat dissipation effect 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 good heat dissipation effect according to claim 4, characterized in that: The inner annular surface is provided with fan-shaped grooves between the first notches, and protrusions for processing the first notches are provided between adjacent fan-shaped grooves. The edge of the fixed disk body is provided with fan-shaped blocks corresponding to the fan-shaped grooves.

8. A brake disc with good heat dissipation effect according to claim 7, characterized in that: The fixed disc body is provided with a plurality of evenly distributed weight-reducing grooves.

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