Wear-resistant asbestos rubber brake block

Abstract

The utility model provides a wear-resistant asbestos rubber brake block, which comprises a brake block body and a brake block back plate, the brake block body comprises an asbestos rubber base layer, a first functional layer and a second functional layer, the first functional layer comprises a carbon fiber reinforcement layer and a silicon nitride ceramic particle layer, and the second functional layer comprises a carbon fiber reinforcement layer and a silicon nitride ceramic particle layer. The second functional layer comprises a high-purity graphite powder coating and a nitrile rubber wear-resistant layer, and the first functional layer is arranged on the outer surface of the asbestos rubber base layer. The first functional layer comprising the carbon fiber reinforcement layer and the silicon nitride ceramic particle layer is arranged, the carbon fiber reinforcement layer can remarkably improve the tensile strength and rigidity of the brake block body, deformation in the long-term use process is prevented, the abrasion resistance of the brake block body is improved, and the brake block body can better resist friction and abrasion; the silicon nitride ceramic particle layer can effectively improve the hardness and the wear resistance of the surface of the brake block body, reduces the direct contact wear with a brake disc, and prolongs the overall service life.

Description

Technical Field

[0001] The utility model relates to a wear-resistant asbestos rubber brake block, belonging to the technical field of brake blocks. Background Art

[0002] The brake block is a crucial safety part in the vehicle braking system. The brake block is installed on the outer cylindrical surface of the pneumatic tire or in the brake caliper component. When the driver steps on the brake pedal, the brake block will be pressed against the brake disc or brake drum, and braking force is generated through the friction effect, so as to decelerate, stop or keep the moving wheel in a stopped state.

[0003] For example, the application number CN218882863U discloses an automotive brake block, which includes a brake block back plate and a friction plate on the brake block back plate. The friction plate is integrally fixed on the brake block back plate. The left and right ends of the brake block back plate respectively extend out lugs, and the lugs are used to fix the brake block on the brake. The lug includes a lug skeleton and lug rubber. The lug skeleton is integrally arranged with the brake block back plate. The lug rubber includes a rubber wrapping part, and the rubber wrapping part is the rubber wrapped on the outer surface of the lug skeleton. An automotive brake block provided by the utility model includes lugs on both sides, and the lugs are wrapped with rubber wrapping parts. The lugs are connected with the brake, which can effectively solve the problem that the existing disc brake is prone to generate braking noise, and is simple and feasible to manufacture, and is easy to popularize and apply.

[0004] This brake block lacks a wear-resistant structure. Poor wear resistance of the brake block will directly lead to a shortened service life, an increased replacement frequency, thereby increasing the maintenance cost of the vehicle owner. More importantly, a brake block with poor wear resistance is prone to excessive wear during high-frequency or high-intensity braking, resulting in a weakened braking force, an extended braking distance, and even a risk of brake failure, posing a serious threat to driving safety. In addition, a brake block with too fast wear may also generate more brake dust and noise, affecting the cleanliness of the vehicle surrounding environment and the riding comfort.

[0005] Therefore, a wear-resistant asbestos rubber brake block is proposed. Summary of the Utility Model

[0006] In view of this, the utility model provides a wear-resistant asbestos rubber brake block to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

[0007] The technical solution of the utility model is realized as follows: a wear-resistant asbestos rubber brake block includes a brake block body and a brake block back plate. The brake block body includes an asbestos rubber base layer, a first functional layer and a second functional layer. The first functional layer includes a carbon fiber reinforced layer and a silicon nitride ceramic particle layer. The second functional layer includes a high-purity graphite powder coating and a nitrile rubber wear-resistant layer.

[0008] Further preferably, the first functional layer is disposed on the outer surface of the asbestos rubber base layer, and the second functional layer is disposed on the outer surface of the first functional layer.

[0009] Further preferably, the carbon fiber reinforced layer is disposed on the outer surface of the asbestos rubber base layer, and the silicon nitride ceramic particle layer is disposed on the outer surface of the carbon fiber reinforced layer.

[0010] Further preferably, the high-purity graphite powder coating is disposed on the outer surface of the silicon nitride ceramic particle layer, and the nitrile rubber wear-resistant layer is disposed on the outer surface of the high-purity graphite powder coating.

[0011] Further preferably, the brake block body is disposed on the front side of the brake block back plate, and lugs are disposed on both the left and right sides of the brake block back plate.

[0012] Further preferably, the high-purity graphite powder coating and the nitrile rubber wear-resistant layer have the same thickness, and the thickness is 1.3 mm - 1.6 mm.

[0013] The embodiment of the present utility model has the following advantages due to the adoption of the above technical solutions:

[0014] 1. The present utility model is provided with a first functional layer including a carbon fiber reinforced layer and a silicon nitride ceramic particle layer. Among them, the carbon fiber reinforced layer can significantly improve the tensile strength and stiffness of the brake block body, prevent deformation during long-term use, and also enhance the wear resistance of the brake block body, making it more resistant to friction and wear. The silicon nitride ceramic particle layer can effectively improve the surface hardness and wear resistance of the brake block body, reduce the direct contact wear with the brake disc, and extend the overall service life.

[0015] 2. The present utility model is provided with a second functional layer including a high-purity graphite powder coating and a nitrile rubber wear-resistant layer. Among them, the high-purity graphite powder coating can significantly reduce the friction coefficient and wear rate between the brake block body and the brake disc, and can also improve the smoothness and quietness of the braking process, reduce noise and vibration. The nitrile rubber wear-resistant layer improves the overall service life and performance stability of the brake block body, and it also has oil resistance and chemical corrosion resistance to ensure the reliability of the brake block body in various working environments.

[0016] 3. The present utility model is provided with an asbestos rubber base layer, which can provide good heat resistance and corrosion resistance for the brake block body, ensure that the brake block body can still maintain stable performance in high-temperature and corrosive environments, and also improve the mechanical strength and tear resistance of the brake block body, further increasing the overall service life.

[0017] The above summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0020] Figure 2 is a schematic cross-sectional structure diagram of the brake block body of the present utility model;

[0021] Figure 3 is a schematic structure diagram of the first functional layer of the present utility model;

[0022] Figure 4 is a schematic structure diagram of the second functional layer of the present utility model.

[0023] Reference numerals: 1, brake block body; 11, asbestos rubber base layer; 12, first functional layer; 1201, carbon fiber reinforced layer; 1202, silicon nitride ceramic particle layer; 13, second functional layer; 1301, high-purity graphite powder coating; 1302, nitrile rubber wear-resistant layer; 2, brake block back plate; 3, lug. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0025] The following will describe the embodiments of the present utility model in detail with reference to the accompanying drawings.

[0026] Embodiment 1

[0027] As Figures 1-4As shown in the figure, an embodiment of the present utility model provides a wear-resistant asbestos rubber brake block, which includes a brake block body 1 and a brake block back plate 2. The brake block body 1 includes an asbestos rubber base layer 11, a first functional layer 12 and a second functional layer 13. The first functional layer 12 includes a carbon fiber reinforced layer 1201 and a silicon nitride ceramic particle layer 1202. The second functional layer 13 includes a high-purity graphite powder coating 1301 and a nitrile rubber wear-resistant layer 1302. The first functional layer 12 is disposed on the outer surface of the asbestos rubber base layer 11, and the second functional layer 13 is disposed on the outer surface of the first functional layer 12. The carbon fiber reinforced layer 1201 is disposed on the outer surface of the asbestos rubber base layer 11, and the silicon nitride ceramic particle layer 1202 is disposed on the outer surface of the carbon fiber reinforced layer 1201.

[0028] By providing the first functional layer 12 including the carbon fiber reinforced layer 1201 and the silicon nitride ceramic particle layer 1202, wherein the carbon fiber reinforced layer 1201 can significantly improve the tensile strength and stiffness of the brake block body 1, prevent deformation during long-term use, and also enhance the wear resistance of the brake block body 1, making it more resistant to friction and wear. The silicon nitride ceramic particle layer 1202 can effectively improve the surface hardness and wear resistance of the brake block body 1, reduce the direct contact wear with the brake disc, and extend the overall service life. By providing the asbestos rubber base layer 11, it can provide good heat resistance and corrosion resistance for the brake block body 1, ensure that the brake block body 1 can still maintain stable performance in high-temperature and corrosive environments, and also improve the mechanical strength and tear resistance of the brake block body 1, further increasing the overall service life.

[0029] Embodiment 2

[0030] In one embodiment, the high-purity graphite powder coating 1301 is disposed on the outer surface of the silicon nitride ceramic particle layer 1202, and the nitrile rubber wear-resistant layer 1302 is disposed on the outer surface of the high-purity graphite powder coating 1301. The brake block body 1 is disposed on the front side of the brake block back plate 2. Support ears 3 are provided on both the left and right sides of the brake block back plate 2. The high-purity graphite powder coating 1301 and the nitrile rubber wear-resistant layer 1302 have the same thickness, and the thickness is 1.3 mm - 1.6 mm.

[0031] By providing the second functional layer 13 including the high-purity graphite powder coating 1301 and the nitrile rubber wear-resistant layer 1302, wherein the high-purity graphite powder coating 1301 can significantly reduce the friction coefficient and wear rate between the brake block body 1 and the brake disc, and can also improve the smoothness and quietness of the braking process, reduce noise and vibration. The nitrile rubber wear-resistant layer 1302 improves the overall service life and performance stability of the brake block body 1, and it also has oil resistance and chemical corrosion resistance to ensure the reliability of the brake block body 1 in various working environments.

[0032] When the utility model is in operation: By providing the first functional layer 12 including a carbon fiber reinforced layer 1201 and a silicon nitride ceramic particle layer 1202, wherein the carbon fiber reinforced layer 1201 can significantly improve the tensile strength and stiffness of the brake block body 1, prevent deformation during long-term use, and also enhance the wear resistance of the brake block body 1, making it more resistant to friction and wear. The silicon nitride ceramic particle layer 1202 can effectively improve the surface hardness and wear resistance of the brake block body 1, reduce the direct contact wear with the brake disc, and extend the overall service life. By providing the second functional layer 13 including a high-purity graphite powder coating 1301 and a nitrile rubber wear-resistant layer 1302, wherein the high-purity graphite powder coating 1301 can significantly reduce the friction coefficient and wear rate between the brake block body 1 and the brake disc, and can also improve the smoothness and quietness of the braking process, reduce noise and vibration. The nitrile rubber wear-resistant layer 1302 improves the overall service life and performance stability of the brake block body 1, and it also has oil resistance and chemical corrosion resistance to ensure the reliability of the brake block body 1 in various working environments. By providing the asbestos rubber base layer 11, it can provide good heat resistance and corrosion resistance for the brake block body 1, ensure that the brake block body 1 can still maintain stable performance in high-temperature and corrosive environments, and also improve the mechanical strength and tear resistance of the brake block body 1, further increasing the overall service life.

[0033] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A wear-resistant asbestos rubber brake pad, comprising a brake pad body (1) and a brake pad back plate (2), characterized in that: The brake pad body (1) comprises an asbestos rubber base layer (11), a first functional layer (12) and a second functional layer (13), wherein the first functional layer (12) comprises a carbon fiber reinforced layer (1201) and a silicon nitride ceramic particle layer (1202), and the second functional layer (13) comprises a high-purity graphite powder coating (1301) and a nitrile rubber wear-resistant layer (1302).

2. The wear-resistant asbestos rubber brake pad according to claim 1, characterized in that: The first functional layer (12) is arranged on the outer surface of the asbestos rubber base layer (11), and the second functional layer (13) is arranged on the outer surface of the first functional layer (12).

3. The wear-resistant asbestos rubber brake pad according to claim 1, characterized in that: The carbon fiber reinforced layer (1201) is arranged on the outer surface of the asbestos rubber base layer (11), and the silicon nitride ceramic particle layer (1202) is arranged on the outer surface of the carbon fiber reinforced layer (1201).

4. The wear-resistant asbestos rubber brake pad according to claim 1, characterized in that: The high-purity graphite powder coating (1301) is arranged on the outer surface of the silicon nitride ceramic particle layer (1202), and the nitrile rubber wear-resistant layer (1302) is arranged on the outer surface of the high-purity graphite powder coating (1301).

5. The wear-resistant asbestos rubber brake pad according to claim 1, characterized in that: The brake block body (1) is arranged on the front side of the brake block back plate (2), and the left and right sides of the brake block back plate (2) are both provided with support ears (3).

6. The wear-resistant asbestos rubber brake pad according to claim 1, characterized in that: The thickness of the high-purity graphite powder coating (1301) and the nitrile rubber wear-resistant layer (1302) are consistent, and the thickness is 1.3mm-1.6mm.

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