Friction plate assembly and brake caliper

Abstract

The utility model provides a friction plate assembly and a brake caliper, and relates to the field of brakes. The friction plate assembly comprises a supporting plate, a piston, a friction piece and a silencing piece. The friction piece and the silencing piece are fixed to the two sides of the supporting plate correspondingly, and the silencing piece is provided with a through hole. One end of the piston is fixedly connected with the side wall, provided with the silencing piece, of the supporting plate, and the other end of the piston penetrates through the through hole. According to the friction plate assembly, the technical problems that in the prior art, noise is generated when a brake caliper works, and the production efficiency of the brake caliper is low are solved.

Description

Technical Field

[0001] This application relates to the field of brakes, and more specifically, to a friction pad assembly and a brake caliper. Background Technology

[0002] Brakes are an important component of automobiles, and their function is to stop a moving vehicle. A caliper disc brake consists of two parts: a brake disc and a brake caliper. The brake disc is connected to the wheel and rotates, while the brake caliper is fixed to the shaft or slides axially on the shaft. Inside the brake caliper is a piston. Under the action of external force, the piston extends and pushes the friction pad in front of the piston to clamp the rotating brake disc, stopping the wheel from rotating. After the external force is removed, the piston retracts, and the brake is released.

[0003] Existing brake calipers have the following problems: they generate noise during braking; the brake caliper has a large number of parts, resulting in long assembly time and low efficiency. Utility Model Content

[0004] The purpose of this application is to provide a friction pad assembly and a brake caliper to alleviate the technical problem of low production efficiency of brake calipers in the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] In the first aspect, the friction plate assembly provided by this utility model includes a support plate, a piston, a friction component, and a noise reduction component;

[0007] The friction element and the noise-reducing element are respectively fixed on both sides of the support plate, and the noise-reducing element is provided with through holes;

[0008] One end of the piston is fixedly connected to the side wall of the support plate where the silencer is installed, and the other end of the piston passes through the through hole.

[0009] Furthermore, the support plate is integrally formed with the piston.

[0010] Furthermore, the support plate is welded to the piston.

[0011] Furthermore, the friction plate assembly also includes at least one guide post, and the silencing component has mounting holes in the middle of its vertical direction, the number of which is equal to the number of guide posts. The axis of the mounting holes is spaced apart from the axis of the through hole, and the plurality of mounting holes are located on both sides of the through hole.

[0012] One end of the guide post is connected to the side wall of the support plate where the sound-absorbing component is installed, and the other end passes through the mounting hole.

[0013] Furthermore, the guide post is integrally formed with the support plate or threadedly connected.

[0014] Furthermore, the plurality of guide posts include a first guide post and a second guide post, wherein the cross-sectional area of ​​the first guide post is greater than the cross-sectional area of ​​the second guide post.

[0015] Furthermore, the top of the support plate is provided with a first clearance groove, the top of the silencing plate is provided with a second clearance groove, and the top of the friction element is provided with a third clearance groove. The first clearance groove, the second clearance groove, and the third clearance groove are connected to each other for avoiding the alarm.

[0016] Furthermore, the friction plate assembly also includes a counterweight;

[0017] The top of the support plate is provided with at least one mounting protrusion, on which the counterweight is mounted.

[0018] Secondly, the brake caliper provided by this utility model includes a caliper body and a friction pad assembly as described in any of the above claims;

[0019] The friction plate assembly is located within the clamp body and slides in engagement with the clamp body.

[0020] Furthermore, the clamp body is provided with an installation cavity, and the friction plate assembly is slidably installed on the two opposite side walls of the installation cavity, and the friction elements of the two friction plate assemblies are opposite to each other.

[0021] Based on the above technical solutions, the technical effects achievable by this utility model can be analyzed as follows:

[0022] The friction plate assembly provided by this utility model includes a support plate, a piston, a friction component, and a noise-reducing component; the friction component and the noise-reducing component are respectively fixed on both sides of the support plate, and the noise-reducing component is provided with a through hole; one end of the piston is fixedly connected to the side wall of the support plate on which the noise-reducing component is installed, and the other end of the piston passes through the through hole.

[0023] Friction components and noise-reducing components are installed on both sides of the support plate. The friction components are used for braking, and the noise-reducing components are used to reduce noise. The piston is fixedly connected to the support plate. Before the friction pad assembly is assembled, the support plate and the piston are already fixedly connected as a whole part. When assembling the brake caliper, the friction pad assembly can be assembled as a whole part. Compared with the existing technology where the friction pad, friction pad guide pin and piston are installed separately, the number of assembly parts is reduced and the assembly efficiency is improved. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the friction pad assembly provided in the embodiments of this application;

[0026] Figure 2 This is an exploded view of the friction pad assembly provided in an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the brake caliper provided in an embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the caliper body in the brake caliper provided in the embodiments of this application;

[0029] Figure 5 This is a schematic diagram of the internal structure of the caliper body in the brake caliper provided in the embodiment of this application.

[0030] icon:

[0031] 100 - Support plate; 110 - First clearance groove; 120 - Mounting protrusion;

[0032] 200-piston;

[0033] 300 - Friction component; 310 - Third clearance groove;

[0034] 400 - Silencing component; 410 - Through hole; 420 - Mounting hole; 430 - Second clearance groove;

[0035] 510 - First guide post; 520 - Second guide post;

[0036] 600-counterweight;

[0037] 700 - Clamp body; 710 - Mounting cavity; 720 - Guide hole;

[0038] a - Horizontal direction; b - Vertical direction. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] Example 1

[0043] See Figure 1 and Figure 2 The friction plate assembly provided in this embodiment of the utility model includes a support plate 100, a piston 200, a friction element 300, and a noise-reducing element 400; the friction element 300 and the noise-reducing element 400 are respectively fixed on both sides of the support plate 100, and the noise-reducing element 400 is provided with a through hole 410; one end of the piston 200 is fixedly connected to the side wall of the support plate 100 where the noise-reducing element 400 is installed, and the other end of the piston 200 passes through the through hole 410.

[0044] Friction components 300 and noise-reducing components 400 are installed on both sides of the support plate 100. The friction components 300 are used for braking, and the noise-reducing components 400 are used to reduce noise. The piston 200 is fixedly connected to the support plate 100. Before the friction plate assembly is assembled, the support plate 100 and the piston 200 are already fixedly connected as a whole part. When assembling the brake caliper, the friction plate assembly can be assembled as a whole part. Compared with the prior art, which installs the friction plate, friction plate guide pin and piston 200 separately, the number of assembly parts is reduced and the assembly efficiency is improved.

[0045] The structure and shape of the friction pad assembly are described in detail below:

[0046] In the optional embodiment of this utility model, the support plate 100 and the piston 200 are integrally formed.

[0047] Specifically, in the production process, the support plate 100 and piston 200 are first cold-forged into a whole, and then the outer diameter of piston 200 is precision machined to realize the integral forming of support plate 100 and piston 200, which enhances the connection strength between the two and improves the positional accuracy between them.

[0048] In another implementation, the support plate 100 is welded to the piston 200.

[0049] Specifically, in the production process, the support plate 100 is first stamped, the piston 200 is cold-forged, and then the piston 200 and the support plate 100 are welded together as a whole; then the outer diameter of the piston 200 is precision machined; thus, the support plate 100 and the piston 200 are fixedly connected, which enhances the connection strength between the two and facilitates manufacturing.

[0050] In the optional embodiment of this utility model, the friction plate assembly further includes at least two guide posts. The middle of the vertical direction b of the muffler 400 is provided with mounting holes 420 equal to the number of guide posts. The axis of the mounting holes 420 is spaced apart from the axis of the through hole 410, and the multiple mounting holes 420 are located on both sides of the through hole 410. One end of the guide post is connected to the side wall of the support plate 100 on which the muffler 400 is installed, and the other end passes through the mounting hole 420.

[0051] Specifically, see Figure 2 The middle part of the vertical direction b of the muffler 400 refers to the middle region of the muffler 400 along the vertical direction b. In this embodiment, the through hole 410 is located at the exact center of the muffler 400; that is, the through hole 410 is located at the middle part of the vertical direction b and the middle part of the horizontal direction a of the muffler 400; the axis of the through hole 410 and the axis of the mounting hole 420 are parallel and spaced apart along the horizontal direction a, so that the axis of the guide post and the axis of the piston 200 are parallel and spaced apart along the horizontal direction a; along the horizontal direction a, mounting holes 420 are provided on both sides of the through hole 410. Of course, there are multiple pistons 200, and the middle part of the vertical direction b of the muffler 400 is provided with multiple through holes 410 and multiple mounting holes 420. The axes of the multiple through holes 410 are spaced apart along the horizontal direction a of the muffler 400, and the multiple pistons 200 are correspondingly inserted through the multiple through holes 410. The scheme in which the axes of the mounting holes 420 and the axes of the through holes 410 are spaced apart along the horizontal direction a of the muffler 400 should also be within the protection scope of this utility model embodiment. Among them, there may be two mounting holes 420, along the horizontal direction a, and the two mounting holes 420 are respectively located on both sides of the multiple through holes 410.

[0052] A guide post is installed on the support plate 100. The guide post is used to slide with the clamp body 700 (hereinafter referred to as clamp body 700) to realize the sliding engagement between the friction pad assembly and the clamp body 700. The friction pad assembly as a whole can move relative to the clamp body 700. Multiple guide posts are provided to realize multi-position guidance and prevent the friction pad assembly from tilting in the horizontal direction a when it moves as a whole. In the prior art, the friction pad positioning pin is connected to the clamp body 700, and the top of the back plate slides with the friction pad positioning pin. The back plate can move relative to the friction pad positioning pin along the axial direction of the friction pad positioning pin. In addition, the clamp body 700 has two protruding structures. Along the horizontal direction a of the back plate, the two protruding structures are located on both sides of the back plate. The gap between the back plate and the protruding structures needs to meet the braking requirements to limit the tilting range of the back plate. Under certain braking conditions, the friction pad hits the protruding structure of the clamp body 700 and generates noise. In this embodiment, the mounting hole 420 is located at the center of the vertical direction b of the silencing component 400, enabling the guide post to be installed at the center of the vertical direction b of the support plate 100, and utilizing the guide post to slide with the clamp body 700; because the assembly method of the friction plate assembly and the clamp body 700 has been changed, the protruding structure has been eliminated, thus solving the aforementioned noise problem; because in this embodiment the guide post slides with the clamp body 700, and the contact point between the friction plate assembly and the clamp body 700 is the guide post, the tilt range of the support plate 100 can be controlled by controlling the fitting accuracy between the guide post and the clamp body 700, thereby allowing for... The precise control of the profile of the wide support plate 100 reduces costs; it also increases the gap between the friction plate assembly and the clamp 700 in the horizontal direction a, preventing noise generation; furthermore, by eliminating the friction plate positioning pin on the top of the back plate, the number of counterweights 600 that can be installed on the top of the support plate 100 can be increased, and a variety of flexible combinations of the counterweights 600 can be provided; wherein, the counterweights 600 are used to solve certain other fixed-frequency resonant noises, and an additional consequence of this friction plate assembly is that there are multiple combinations of counterweights 600, providing convenience for noise solutions.

[0053] In the optional solutions provided by this utility model embodiment, the guide post and the support plate 100 are integrally formed or threadedly connected.

[0054] Specifically, the guide post and the support plate 100 are integrally formed, achieving a fixed connection between the guide post and the support plate 100. Alternatively, the guide post has external threads, and the support plate 100 has internal threaded holes, with the external threads of the guide post threadedly connected to the internal threaded holes. Of course, welding of the guide post and the support plate 100, etc., should also be within the protection scope of this utility model embodiment.

[0055] The guide post can be fixedly connected to the support plate 100 or threadedly connected, thus achieving the guiding function of the guide post.

[0056] In the optional solution provided by the embodiment of this utility model, the multiple guide posts include a first guide post 510 and a second guide post 520, and the cross-sectional area of ​​the first guide post 510 is greater than the cross-sectional area of ​​the second guide post 520.

[0057] Specifically, see Figure 1 and Figure 2 The cross-sections of the first guide post 510 and the second guide post 520 are both circular, and the diameter of the first guide post 510 is larger than the diameter of the second guide post 520. When installing the friction pad assembly, the first guide post 510 and the second guide post 520 are installed in the direction of brake disc rotation during normal forward braking, with the first guide post 510 installed on the screw-in side.

[0058] The first guide post 510 has a slightly larger diameter and is mainly used to withstand the shear force during braking.

[0059] In the optional solution provided by this utility model embodiment, the top of the support plate 100 is provided with a first clearance groove 110, the top of the silencing component 400 is provided with a second clearance groove 430, and the top of the friction component 300 is provided with a third clearance groove 310. The first clearance groove 110, the second clearance groove 430 and the third clearance groove 310 are connected to avoid the alarm.

[0060] Specifically, there are two of each of the first clearance groove 110, the second clearance groove 430, and the third clearance groove 310.

[0061] The first clearance slot 110, the second clearance slot 430, and the third clearance slot 310 are used to avoid the alarm device and prevent interference with its installation.

[0062] In the optional embodiment of this utility model, the friction plate assembly further includes a counterweight 600; the top of the support plate 100 is provided with at least one mounting protrusion 120, and the counterweight 600 is mounted on the mounting protrusion 120.

[0063] Specifically, multiple mounting protrusions 120 can be provided, and the multiple mounting protrusions 120 are spaced apart along the horizontal direction a; each mounting protrusion 120 can be used to install a configuration block, and the counterweight block 600 can be installed according to the actual needs; in addition, the type of counterweight block 600 can be configured according to actual needs.

[0064] The counterweight 600 was used to solve the noise problem that occurred during the development of the brake caliper.

[0065] Example 2

[0066] The brake caliper provided in this embodiment includes the friction pad assembly described in Embodiment 1, and therefore also possesses all the beneficial effects of Embodiment 1, which will not be repeated here.

[0067] In the optional embodiment of this utility model, the brake caliper includes a caliper body 700; the friction pad assembly is located inside the caliper body 700 and slides with the caliper body 700.

[0068] Specifically, see Figures 3 to 5 The inner wall of the clamp body 700 is provided with a guide hole 720. The friction plate assembly is located inside the clamp body 700, and the guide post of the friction plate assembly extends into the guide hole 720 and slides in cooperation with the guide hole 720.

[0069] The friction plate assembly slides with the clamp body 700, allowing the friction plate assembly to move relative to the clamp body 700 to achieve a braking effect.

[0070] In the optional solution provided by the embodiment of this utility model, the clamp body 700 is provided with an installation cavity 710, and friction plate assemblies are slidably installed on the two opposite side walls of the installation cavity 710, and the friction elements 300 of the two friction plate assemblies are opposite to each other.

[0071] Specifically, the two opposite sidewalls of the mounting cavity 710 are provided with guide holes 720, the two friction pad assemblies are arranged opposite each other, and the guide post of the friction pad assembly is inserted into the corresponding guide hole 720 and slides in cooperation with the guide hole 720.

[0072] The friction elements 300 of the two friction pad assemblies are opposite each other, which achieves a braking effect.

[0073] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0074] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A friction plate assembly, characterized by include: Support plate (100), piston (200), friction element (300) and silencer (400); The friction element (300) and the noise reduction element (400) are respectively fixed on both sides of the support plate (100), and the noise reduction element (400) is provided with a through hole (410); One end of the piston (200) is fixedly connected to the side wall of the support plate (100) where the muffler (400) is installed, and the other end of the piston (200) passes through the through hole (410).

2. The friction plate assembly of claim 1, wherein, The support plate (100) and the piston (200) are integrally formed.

3. The friction plate assembly of claim 1, wherein, The support plate (100) is welded to the piston (200).

4. The friction plate assembly according to claim 2 or 3, characterized in that The friction plate assembly also includes at least two guide posts. The silencing component (400) has mounting holes (420) in the middle of its vertical direction (b) equal to the number of guide posts. The axis of the mounting holes (420) is spaced apart from the axis of the through hole (410), and the plurality of mounting holes (420) are located on both sides of the through hole (410). One end of the guide post is connected to the side wall of the support plate (100) where the sound-absorbing component (400) is installed, and the other end passes through the mounting hole (420).

5. The friction plate assembly of claim 4, wherein, The guide post is integrally formed with the support plate (100) or threadedly connected.

6. The friction plate assembly of claim 4, wherein, The plurality of guide posts include a first guide post (510) and a second guide post (520), wherein the cross-sectional area of ​​the first guide post (510) is greater than the cross-sectional area of ​​the second guide post (520).

7. The friction plate assembly of claim 1, wherein, The top of the support plate (100) is provided with a first clearance groove (110), the top of the silencing component (400) is provided with a second clearance groove (430), and the top of the friction component (300) is provided with a third clearance groove (310). The first clearance groove (110), the second clearance groove (430) and the third clearance groove (310) are connected to avoid the alarm.

8. The friction plate assembly of claim 1, wherein, The friction plate assembly also includes a counterweight (600); The top of the support plate (100) is provided with at least one mounting protrusion (120), and the counterweight (600) is mounted on the mounting protrusion (120).

9. A brake caliper, characterized in that, Includes a clamp body (700) and a friction pad assembly as described in any one of claims 1-8; The friction plate assembly is located within the clamp body (700) and slides in cooperation with the clamp body (700).

10. The brake caliper according to claim 9, characterized in that, The clamp body (700) is provided with a mounting cavity (710), and the friction plate assembly is slidably mounted on the two opposite side walls of the mounting cavity (710), and the friction elements (300) of the two friction plate assemblies are opposite to each other.

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