Brake shoe brake pad structure of low-noise disc type brake shoe assembly

Abstract

The utility model discloses a brake shoe brake pad structure of a low-noise disc type brake shoe assembly, which relates to the technical field of brake pads, and comprises a brake shoe body, a brake pad main body is arranged on one side of the brake shoe body, and a mounting mechanism is arranged between the brake shoe body and the brake pad main body. The shock absorption assembly comprises a rubber shock absorption pad installed on one side of the brake pad body through the vulcanization technology, through elastic deformation of the rubber shock absorption pad, when the brake pad body rubs against a brake disc to generate vibration, vibration energy can be effectively absorbed, meanwhile, a ceramic fiber pad has high flexibility and excellent damping characteristics, and the service life of the brake pad is prolonged. In addition, the heat dissipation copper net is of a honeycomb structure, part of noise generated by friction can be absorbed while heat dissipation is conducted, vibration and noise in the braking process are greatly reduced through mutual cooperation of the heat dissipation copper net, the rubber shock pad and the heat dissipation copper net, and the comfort and the mute performance of a braking system are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to brake pad technical field, concretely is a kind of low noise disc brake shoe assembly brake shoe brake pad structure. BACKGROUND

[0002] Disc brake shoe assembly is widely applied to various vehicles by virtue of good heat dissipation performance, fast braking response and other advantages, and it mainly includes brake pad and brake shoe, and brake pad is generally composed of friction material layer, heat insulation layer and adhesive layer, and brake shoe is composed of metal matrix and surface treatment layer.

[0003] Reference patent document: patent publication number CN 216306556 U, patent publication date 2022-04-15, relates to a connecting structure for brake pad and brake shoe, comprising brake shoe, brake pad and connecting hole, the brake pad is arranged on the side surface of brake shoe, the brake shoe surface is provided with connecting hole, the brake shoe interior is provided with first transmission bin, its beneficial effects are that, when people need to install brake pad, people only need to twist first knob, drive first rotating shaft to rotate, under the cooperation of first threaded column and first threaded tube, first clamping block can be moved, when first clamping block moves to specified position, people can stop twisting first knob, at the same time, people twist second knob, drive second rotating shaft to rotate, under the cooperation of first bevel gear, second bevel gear, second threaded column and second threaded tube, second clamping block can be moved, when second clamping block is arranged in through hole, people can stop twisting second knob.

[0004] Based on the search of patent number, combined with the deficiencies in prior art, it is found that:

[0005] At present, in the braking process of traditional brake shoe brake pad structure, the vibration and noise generated by the friction between brake pad and brake disc not only reduces the driving comfort, but also may cause component fatigue damage in the long run, affects the stability of braking system, and the heat dissipation efficiency of existing structure is poor, high temperature generated in frequent braking process can easily lead to brake pad performance degradation, reduce braking effect, and even cause safety hazard.

[0006] Therefore, the utility model provides a kind of low noise disc brake shoe assembly brake shoe brake pad structure. UTILITY MODEL CONTENT

[0007] In order to solve the problems of traditional brake shoe brake pad structure, such as large vibration noise and low heat dissipation efficiency, which can easily lead to driving discomfort, component fatigue and braking heat recession, affect safety and system stability; the purpose of the utility model is to provide a kind of low noise disc brake shoe assembly brake shoe brake pad structure.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a brake shoe and brake pad structure for a low-noise disc brake shoe assembly, comprising a brake shoe body, a brake pad body on one side of the brake shoe body, and a mounting mechanism between the brake shoe body and the brake pad body, the mounting mechanism comprising:

[0009] The shock absorption assembly includes a rubber shock-absorbing pad installed on one side of the brake pad body through a vulcanization process. Multiple sets of ceramic fiber pads are bonded to the side of the brake shoe body close to the brake pad body. Multiple heat dissipation copper meshes are provided on one side of the ceramic fiber pads. The heat dissipation copper meshes are in contact with one side of the brake pad body. One side of the brake pad body is bonded to one side of the ceramic fiber pads with phenolic resin modified epoxy adhesive.

[0010] A fixing component is installed between the brake shoe body and the brake pad body to fix the brake shoe body and the brake pad body.

[0011] Preferably, the fixing component includes two sets of locking blocks disposed on one side of the brake shoe body. Two sets of symmetrically distributed fixing grooves are provided on one side of the brake shoe body and one side of the brake pad body, and both ends of the two sets of locking blocks are locked inside the fixing grooves.

[0012] Preferably, each of the multiple sets of ceramic fiber pads has two symmetrically distributed mounting grooves on one side, and multiple heat dissipation copper meshes are bonded to the middle of the mounting grooves.

[0013] Preferably, a slot is formed between the multiple sets of ceramic fiber pads, and the multiple sets of rubber shock-absorbing pads are all bonded to the inside of the slot.

[0014] Preferably, a cavity is provided on one side of the brake shoe body, and multiple heat dissipation fins are fixedly installed in the middle of the cavity.

[0015] Preferably, multiple sets of equally spaced heat dissipation holes are provided on one side of the brake shoe body, and the positions of the multiple heat dissipation holes correspond to the positions of the heat dissipation copper mesh.

[0016] Beneficial effects

[0017] This utility model provides a brake shoe structure for a low-noise disc brake shoe assembly.

[0018] Compared with existing technologies, it has the following advantages:

[0019] 1. This application utilizes the elastic deformation of the rubber damping pad to effectively absorb vibration energy when the brake pad body vibrates due to friction with the brake disc. At the same time, the ceramic fiber pad has high flexibility and excellent damping characteristics, which work synergistically with the rubber damping pad to further attenuate vibration waves. In addition, the heat dissipation copper mesh has a honeycomb structure, which can absorb some of the noise generated by friction while dissipating heat. With the cooperation of these three, the vibration and noise during the braking process are greatly reduced, and the comfort and quietness of the braking system are significantly improved.

[0020] 2. This application achieves mechanical engagement between the brake shoe body and the brake pad body through the interference fit design of the locking block and the fixing groove, so that the two can maintain a stable connection under high-frequency vibration conditions and effectively prevent relative displacement. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the disassembled structure of this utility model.

[0023] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 This is a schematic diagram of the heat dissipation hole structure of this utility model.

[0025] In the diagram: 1. Brake shoe body; 11. Brake pad body; 2. Mounting mechanism; 21. Shock absorption assembly; 211. Ceramic fiber pad; 212. Heat dissipation copper mesh; 2121. Mounting groove; 213. Rubber shock absorption pad; 2131. Slot; 214. Cavity; 2141. Heat dissipation fins; 215. Heat dissipation holes; 22. Fixing assembly; 221. Locking block; 222. Fixing groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-4This utility model provides a technical solution: a brake shoe and brake pad structure for a low-noise disc brake shoe assembly, comprising a brake shoe body 1, a brake pad body 11 on one side of the brake shoe body 1, and a mounting mechanism 2 between the brake shoe body 1 and the brake pad body 11, the mounting mechanism 2 comprising:

[0028] The shock absorption assembly 21 includes a rubber shock-absorbing pad 213 installed on one side of the brake pad body 11 through a vulcanization process. Multiple sets of ceramic fiber pads 211 are bonded to the side of the brake shoe body 1 closest to the brake pad body 11. These ceramic fiber pads 211, as high-performance heat insulation materials, have low thermal conductivity, high flexibility, and excellent damping characteristics, effectively buffering mechanical vibrations. Multiple equally spaced heat-dissipating copper meshes 212 are provided on one side of the ceramic fiber pads 211. The heat-dissipating copper meshes 212 are made of high-purity oxygen-free copper, utilizing the excellent thermal conductivity of copper. The heat dissipation copper mesh 212 has a honeycomb structure that can absorb noise generated during friction. The heat dissipation copper mesh 212 is in contact with one side of the brake pad body 11. One side of the brake pad body 11 is bonded to one side of the ceramic fiber pad 211 by phenolic resin modified epoxy adhesive. The phenolic resin modified epoxy adhesive has both the high temperature resistance of phenolic resin and the high strength bonding characteristics of epoxy resin. It can still maintain stable bonding strength in a high temperature environment of 200℃, ensuring a reliable connection between the brake pad body 11 and the ceramic fiber pad 211.

[0029] The fixing component 22 is disposed between the brake shoe body 1 and the brake pad body 11 and is used to fix the brake shoe body 1 and the brake pad body 11.

[0030] The fixing component 22 includes two sets of locking blocks 221 disposed on one side of the brake shoe body 1. Two sets of symmetrically distributed fixing grooves 222 are provided on one side of the brake shoe body 1 and one side of the brake pad body 11. Both ends of the two sets of locking blocks 221 are locked inside the fixing grooves 222. The locking blocks 221 and the fixing grooves 222 adopt an interference fit design, and the fit tolerance is controlled within ±0.05mm. The mechanical fitting method further enhances the connection stability between the brake shoe body 1 and the brake pad body 11 and prevents relative displacement under high-frequency vibration conditions.

[0031] Each of the multiple sets of ceramic fiber pads 211 has two symmetrically distributed mounting grooves 2121 on one side. Multiple heat dissipation copper meshes 212 are bonded to the middle of the mounting grooves 2121. After the heat dissipation copper meshes 212 are embedded in the mounting grooves 2121, their surfaces are flush with the ceramic fiber pads 211, thus avoiding the problem of local stress concentration caused by protrusions.

[0032] A slot 2131 is provided between multiple sets of ceramic fiber pads 211, and multiple sets of rubber shock-absorbing pads 213 are all bonded inside the slot 2131. The rubber shock-absorbing pads 213 are made of nitrile rubber with a Shore hardness of A60. Its unique structure gives the material good elastic memory function. After being subjected to cyclic compression, it can still maintain its initial elastic performance and effectively extend the shock absorption life.

[0033] A cavity 214 is provided on one side of the brake shoe body 1. Multiple heat dissipation fins 2141 are fixedly installed in the middle of the cavity 214. The heat dissipation fins 2141 are made of aluminum alloy and the surface of the fins is anodized to form a dense oxide film, which not only enhances the corrosion resistance of the heat dissipation fins 2141, but also significantly improves its surface radiation heat dissipation capacity. At the same time, the opening of the cavity 214 can reduce the overall weight of the brake shoe body 1.

[0034] Multiple sets of equally spaced heat dissipation holes 215 are opened on one side of the brake shoe body 1, and the opening positions of the multiple heat dissipation holes 215 correspond to the positions of the heat dissipation copper mesh 212. The heat dissipation holes 215 are located at the rear end of the heat dissipation copper mesh 212, so that the generated heat can be quickly dissipated.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] During operation, firstly, the ceramic fiber pad 211 is bonded to one side of the brake shoe body 1. Then, the heat dissipation copper mesh 212 is aligned with the mounting groove 2121 of the ceramic fiber pad 211 and fixed with a high-temperature resistant adhesive to ensure that the heat dissipation copper mesh 212 and the mounting groove 2121 are tightly fitted. Next, the rubber damping pad 213 is embedded into the slot 2131 of the ceramic fiber pad 211 and reinforced with a vulcanization process to ensure that the rubber damping pad 213 is not loose in the slot 2131. Phenolic resin modified epoxy adhesive is evenly applied to the surface of the ceramic fiber pad 211. The brake pad body 11 is slowly attached to the ceramic fiber pad 211 and the position is adjusted to make the two fully attached. The adhesive is evenly distributed to avoid air bubbles or gaps affecting the bonding strength, thus completing the installation and fixing work between the brake shoe body 1 and the brake pad body 11.

[0037] When the braking system is working, the brake pad body 11 vibrates due to friction with the brake disc. The vibration energy is absorbed by the rubber damping pad 213 through the elastic deformation of the rubber. At the same time, the ceramic fiber pad 211 has both flexibility and damping characteristics, which, together with the rubber damping pad 213, further attenuates the vibration wave. After the braking friction generates heat, the heat is conducted through the brake pad body 11 to the heat dissipation copper mesh 212 (the high thermal conductivity of copper accelerates heat transfer). The ceramic fiber pad 211 helps to diffuse the heat, so that the heat enters the cavity 214 through the heat dissipation hole 215 on one side of the brake shoe body 1. With the setting of the heat dissipation fins 2141, the heat dissipation area is increased, thereby accelerating the heat dissipation efficiency. At the same time, with the setting of the heat dissipation copper mesh 212 and the heat dissipation fins 2141, its honeycomb structure can absorb the generated noise.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A brake shoe structure for a low-noise disc brake shoe assembly, comprising a brake shoe body (1), characterized in that: A brake pad body (11) is provided on one side of the brake shoe body (1), and a mounting mechanism (2) is provided between the brake shoe body (1) and the brake pad body (11). The mounting mechanism (2) includes: The shock absorption assembly (21) includes a rubber shock absorption pad (213) installed on one side of the brake pad body (11) by a vulcanization process. Multiple sets of ceramic fiber pads (211) are bonded to the side of the brake shoe body (1) near the brake pad body (11). Multiple heat dissipation copper meshes (212) are provided on one side of the ceramic fiber pads (211). The heat dissipation copper meshes (212) are in contact with one side of the brake pad body (11). One side of the brake pad body (11) is bonded to one side of the ceramic fiber pads (211) by phenolic resin modified epoxy adhesive. The fixing component (22) is disposed between the brake shoe body (1) and the brake pad body (11) for fixing the brake shoe body (1) and the brake pad body (11).

2. The brake shoe and brake pad structure of a low-noise disc brake shoe assembly according to claim 1, characterized in that: The fixing component (22) includes two sets of locking blocks (221) disposed on one side of the brake shoe body (1). Two sets of symmetrically distributed fixing grooves (222) are provided on one side of the brake shoe body (1) and one side of the brake pad body (11). Both ends of the two sets of locking blocks (221) are locked inside the fixing grooves (222).

3. The brake shoe and brake pad structure of a low-noise disc brake shoe assembly according to claim 1, characterized in that: Each of the multiple sets of ceramic fiber pads (211) has two symmetrically distributed mounting grooves (2121) on one side, and multiple heat dissipation copper meshes (212) are bonded to the middle of the mounting grooves (2121).

4. The brake shoe and brake pad structure of a low-noise disc brake shoe assembly according to claim 1, characterized in that: A slot (2131) is provided between the multiple sets of ceramic fiber pads (211), and the multiple sets of rubber shock-absorbing pads (213) are all bonded to the inside of the slot (2131).

5. The brake shoe and brake pad structure of a low-noise disc brake shoe assembly according to claim 1, characterized in that: A cavity (214) is provided on one side of the brake shoe body (1), and a plurality of equally spaced heat dissipation fins (2141) are fixedly installed in the middle of the cavity (214).

6. The brake shoe and brake pad structure of a low-noise disc brake shoe assembly according to claim 1, characterized in that: The brake shoe body (1) has multiple sets of equally spaced heat dissipation holes (215) on one side, and the positions of the multiple heat dissipation holes (215) correspond to the positions of the heat dissipation copper mesh (212).

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