Light friction plate structure based on parking brake shoe assembly

Abstract

The utility model discloses a light friction plate structure based on a parking brake shoe assembly, which comprises a friction plate body, the friction plate body comprises a friction layer and a back plate, lightening holes are arranged on the surface of the back plate, and a heat dissipation channel is arranged inside the friction layer. According to the light friction plate structure based on the parking brake shoe assembly, the multiple sets of lightening holes are formed in the back plate, and the back plate is made of light aluminum alloy materials, so that the overall weight of the friction plate can be effectively reduced, the requirement for light-weight design of an automobile is met, fuel consumption of the automobile is reduced, and the purposes of energy conservation and emission reduction are achieved; and the heat dissipation channels formed in the friction layer are communicated with the lightening holes in the back plate, so that a good heat dissipation path is formed, the heat dissipation speed of the friction plate is increased, performance reduction of the friction plate caused by high temperature can be effectively avoided, the braking performance of the friction plate is improved, the service life of the friction plate is prolonged, and the parking braking safety of an automobile is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of friction plate, concretely is light friction plate structure based on parking brake shoe assembly. BACKGROUND

[0002] The utility model discloses a friction plate (patent publication number: CN218266938U, patent publication date: 2023.01.10), which comprises a back plate and a friction layer arranged at one end of the back plate, a plurality of first counterbores with depths increasing or decreasing in turn and diameters increasing or decreasing in turn are uniformly arranged at the end of the friction layer away from the back plate in the circumferential direction, a plurality of second counterbores symmetrical with the plurality of first counterbores are further arranged on the friction layer, and the symmetry axes of the first counterbores and the second counterbores coincide with the axis of the friction layer. In the utility model, the wear condition of the friction layer can be obtained by observing the disappearance of the plurality of first counterbores or the plurality of second counterbores. When the first counterbores or the second counterbores with lower depths disappear, it represents that the wear condition of the friction layer is lighter. When the first counterbores or the second counterbores with higher depths disappear, it represents that the wear condition of the wear layer is heavier. By comparing the disappearance of the first counterbores and the second counterbores that are symmetrical with each other, it can be judged whether the friction plate is normally installed, and the wear condition of the friction layer obtained is ensured to be accurate.

[0003] Based on the above-mentioned document: in the parking brake system of the automobile, the friction plate on the parking brake shoe assembly plays a crucial role, and its performance directly affects the effect and safety of the parking brake. With the continuous improvement of the requirements of the automobile industry on energy saving and emission reduction and lightweight design, the traditional parking brake shoe assembly friction plate has the problem of being heavy, which increases the overall weight of the automobile, thereby increasing fuel consumption and being not conducive to the realization of the energy saving and emission reduction target. At the same time, the traditional friction plate has poor heat dissipation performance during long-term use, is easy to produce high temperature, and thus affects the friction coefficient and braking performance of the friction plate, shortens the service life of the friction plate, and has certain safety hazards. Therefore, the utility model provides a light friction plate structure based on a parking brake shoe assembly. Utility model content

[0004] In view of the deficiencies of the prior art, the utility model provides a light friction plate structure based on a parking brake shoe assembly, which solves the problems of large weight and poor heat dissipation performance of the parking brake shoe assembly friction plate in the prior art.

[0005] In order to achieve the above object, the utility model discloses a light friction plate structure based on parking brake shoe assembly, including friction plate body, the friction plate body includes friction layer and backplate, the surface of backplate is opened with lightening hole, the inside of friction layer is opened with heat dissipation channel, the heat dissipation channel penetrates the surface of friction layer, the heat dissipation channel is linked with lightening hole, the back of backplate is provided with reinforcing rib, the reinforcing rib is in reticular distribution, the friction layer adopts light friction material and is made, backplate adopts aluminum alloy material and is made, the surface of backplate is fixedly connected with mounting block, the surface of mounting block is opened with mounting hole.

[0006] Preferably, the shape of the lightening hole is a regular hexagon, the side length of the lightening hole is 5-8mm, the shape of the heat dissipation channel is a circle, and the diameter of the heat dissipation channel is 2-4mm.

[0007] Preferably, the lightening hole is provided with multiple groups, and the heat dissipation channel is provided with multiple groups. The light friction material is a carbon fiber reinforced resin matrix composite material.

[0008] Preferably, the edge of the backplate is provided with a support plate, and the reinforcing rib is arranged inside the support plate.

[0009] Preferably, a heat insulation layer is arranged between the friction layer and the backplate, the heat insulation layer is made of ceramic fiber material, the surface of the heat insulation layer is provided with through holes with the same size as the lightening holes, and the thickness of the heat insulation layer is 0.5-1mm.

[0010] Preferably, the height of the support plate is 2-4mm, the height of the reinforcing rib is 1-2mm, and the width of the reinforcing rib is 0.5-1mm.

[0011] Beneficial effects

[0012] The utility model provides a light friction plate structure based on parking brake shoe assembly. Compared with the prior art, the following beneficial effects are achieved:

[0013] 1、The light friction plate structure based on parking brake shoe assembly, through the multiple lightening holes arranged on the backplate and the backplate made of light aluminum alloy material, the overall weight of the friction plate can be effectively reduced, the requirements of automobile lightweight design are met, the fuel consumption of the automobile is reduced, the purpose of energy saving and emission reduction is achieved, the heat dissipation channel arranged in the friction layer is communicated with the lightening holes on the backplate, a good heat dissipation path is formed, the heat dissipation speed of the friction plate is accelerated, the performance of the friction plate due to high temperature can be effectively avoided, the braking performance and service life of the friction plate are improved, and the safety of the automobile parking brake is enhanced.

[0014] 2. The lightweight friction plate structure based on the parking brake shoe assembly, through the mesh reinforcing ribs arranged on the back surface of the back plate, the structural strength of the back plate is enhanced while the weight is reduced, the stability and reliability of the friction plate in use are ensured, and the friction plate can better cooperate with the parking brake shoe assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an external structure perspective view of the friction plate body of the utility model;

[0016] Figure 2 It is an explosion structure schematic view of the friction plate body of the utility model;

[0017] Figure 3 It is a three-dimensional structure schematic view of the back plate of the utility model;

[0018] Figure 4 It is a three-dimensional structure schematic view of the friction layer of the utility model.

[0019] In the drawing: 1-friction layer, 2-back plate, 3-weight reduction hole, 4-heat dissipation channel, 5-reinforcing rib, 6-supporting plate, 7-heat insulation layer, 8-mounting block, 9-mounting hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0022] The lightweight friction plate structure based on the parking brake shoe assembly, comprising a friction plate body, the friction plate body comprising a friction layer 1 and a back plate 2, the surface of the back plate 2 is provided with a weight reduction hole 3, the inside of the friction layer 1 is provided with a heat dissipation channel 4, the heat dissipation channel 4 penetrates the surface of the friction layer 1, the heat dissipation channel 4 is communicated with the weight reduction hole 3, the back surface of the back plate 2 is provided with a reinforcing rib 5, the reinforcing rib 5 is distributed in a mesh shape, the friction layer 1 is made of lightweight friction material, the back plate 2 is made of aluminum alloy material, the surface of the back plate 2 is fixedly connected with a mounting block 8, the surface of the mounting block 8 is provided with a mounting hole 9.

[0023] By opening a plurality of weight-reducing holes 3 on the back plate 2 and using a lightweight aluminum alloy material to manufacture the back plate 2, the overall weight of the friction plate can be effectively reduced, the requirements of the automobile lightweight design are met, the fuel consumption of the automobile is reduced, the purpose of energy saving and emission reduction is achieved, and the heat dissipation path is formed by the heat dissipation channels 4 arranged in the friction layer 1 and communicated with the weight-reducing holes 3 on the back plate, the heat dissipation speed of the friction plate is accelerated, the performance of the friction plate caused by high temperature can be effectively avoided, the braking performance and service life of the friction plate are improved, and the safety of the automobile parking brake is enhanced.

[0024] The heat dissipation channels 4 are communicated with the weight-reducing holes 3 through circular through grooves.

[0025] In the embodiment, the shape of the weight-reducing holes 3 is a regular hexagon, the length of the side of the weight-reducing holes 3 is 5-8 mm, the shape of the heat dissipation channels 4 is a circle, and the diameter of the heat dissipation channels is 2-4 mm.

[0026] In the embodiment, a plurality of groups of the weight-reducing holes 3 and a plurality of groups of the heat dissipation channels 4 are arranged, and the lightweight friction material is a carbon fiber reinforced resin matrix composite material.

[0027] In the embodiment, a support plate 6 is arranged at the edge of the back plate 2, and the reinforcing ribs 5 are arranged in the inside of the support plate 6.

[0028] The structure strength and stability of the back plate 6 can be improved by the support plate 6.

[0029] In the embodiment, a heat insulation layer 7 is arranged between the friction layer 1 and the back plate 2, the heat insulation layer 7 is made of a ceramic fiber material, a through hole with the same size as the weight-reducing hole 3 is arranged on the surface of the heat insulation layer 7, and the thickness of the heat insulation layer 7 is 0.5-1 mm.

[0030] The arrangement of the heat insulation layer 7 can effectively reduce the heat generated by the friction layer 1 from being transmitted to the back plate 2, protect the back plate 2, and prolong the overall service life of the friction plate.

[0031] In the embodiment, the height of the support plate 6 is 2-4 mm, the height of the reinforcing rib 5 is 1-2 mm, and the width of the reinforcing rib is 0.5-1 mm.

[0032] The structure strength of the back plate 2 is enhanced while the weight is reduced by the mesh reinforcing rib 5 arranged on the back of the back plate 2, the stability and reliability of the friction plate in the use process are ensured, the friction plate can work better with the parking brake shoe assembly, and the safety of the automobile parking brake is enhanced.

[0033] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

[0034] First, the back plate 2 is prepared, an aluminum alloy material is selected, a punch process is used to punch a regular hexagonal lightening hole 3 on the back plate, the side length is set to 6mm, at the same time, a net-distributed reinforcing rib 5 and a circle of support plates 6 are integrally formed on the back of the back plate 2, the height of the reinforcing rib is 1.5mm, the width is 0.8mm, and the support plate 6 with a height of 4mm is punched on the edge of the back plate;

[0035] Then, the friction layer 1 is prepared, a carbon fiber reinforced resin matrix composite material is selected, a uniform distribution of circular heat dissipation channels is formed in the friction layer 1 by a mold forming process, the diameter of the heat dissipation channel is 3mm, and the number of heat dissipation channels 4 is reasonably set according to the size of the brake pad body;

[0036] Next, the heat insulation layer 7 is prepared, a ceramic fiber material is selected, the heat insulation layer 7 with a thickness of 0.8mm is obtained by cutting, and a through hole with the same size as the lightening hole 3 is punched on the surface of the heat insulation layer 7;

[0037] Finally, the heat insulation layer 7 is placed between the back plate 2 and the friction layer 1, the back plate 2, the heat insulation layer 7 and the friction layer 1 are bonded in sequence by an adhesive, the heat dissipation channel 4 is connected with the lightening hole 3, and thus the light-weight brake pad structure based on the parking brake shoe assembly is prepared, in actual application, the light-weight brake pad structure is installed on the parking brake shoe assembly, the friction layer 1 of the brake pad is in contact with the brake disc or brake drum, the parking brake function is realized, in the braking process, the heat generated by friction can be quickly dissipated through the heat dissipation channel 4 and the lightening hole 3, the heat insulation layer 7 reduces the heat transfer to the back plate, ensures that the brake pad works in a suitable temperature range, and improves the braking performance and safety; at the same time, the light-weight structure design effectively reduces the weight of the automobile and reduces fuel consumption.

[0038] It should be noted that in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. Lightweight friction plate structure based on a parking brake shoe assembly, comprising a friction plate body, characterized in that: The friction plate body comprises a friction layer (1) and a back plate (2), the surface of the back plate (2) is provided with a weight-reducing hole (3), the inside of the friction layer (1) is provided with a heat dissipation channel (4), the heat dissipation channel (4) penetrates the surface of the friction layer (1), the heat dissipation channel (4) is communicated with the weight-reducing hole (3), the back surface of the back plate (2) is provided with a reinforcing rib (5), the reinforcing rib (5) is distributed in a net shape, the friction layer (1) is made of light friction material, the back plate (2) is made of aluminum alloy material, the surface of the back plate (2) is fixedly connected with a mounting block (8), the surface of the mounting block (8) is provided with a mounting hole (9).

2. The light weight friction plate structure based on a parking brake shoe assembly as claimed in claim 1, wherein: The shape of the weight-reducing hole (3) is a regular hexagon, the side length of the weight-reducing hole (3) is 5-8mm, the shape of the heat dissipation channel (4) is a circle, and the diameter of the heat dissipation channel is 2-4mm.

3. The light weight friction plate structure based on a parking brake shoe assembly as claimed in claim 1, wherein: The weight-reducing hole (3) is provided with multiple groups, the heat dissipation channel (4) is provided with multiple groups, and the light friction material is a carbon fiber reinforced resin matrix composite material.

4. The light weight friction plate structure based on a parking brake shoe assembly as claimed in claim 1, wherein: The edge of the back plate (2) is provided with a supporting plate (6), and the reinforcing rib (5) is arranged in the inside of the supporting plate (6).

5. The light weight friction plate structure based on a parking brake shoe assembly as claimed in claim 1, wherein: A heat insulation layer (7) is arranged between the friction layer (1) and the back plate (2), the heat insulation layer (7) is made of ceramic fiber material, the surface of the heat insulation layer (7) is provided with a through hole with the same size as the weight-reducing hole (3), and the thickness of the heat insulation layer (7) is 0.5-1mm.

6. The light weight friction plate structure based on a parking brake shoe assembly as claimed in claim 4 wherein: The height of the supporting plate (6) is 2-4mm, the height of the reinforcing rib (5) is 1-2mm, and the width of the reinforcing rib is 0.5-1mm.

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