A noise reduction brake assembly, a pneumatic disc brake and a mining vehicle applying the same

Abstract

The utility model discloses a kind of noise reduction brake assembly and the air pressure disc brake and mine vehicle applied to it, including brake caliper body, two friction plates and friction plate assembly structure, brake caliper body inside has automatic adjustment gap mechanism, two friction plates are respectively first friction plate and second friction plate, parallelly and intervally set in brake caliper body and respectively located at the both sides of axle, first friction plate and second friction plate outside side have noise reduction device, and friction plate assembly structure is set in the upper portion of first friction plate and second friction plate.The utility model solves the problem of the brake torque of brake of mine vehicle in prior art, brake force stability is insufficient, and the problem of relatively large noise.

Description

Technical Field

[0001] This utility model belongs to the technical field of mining vehicle brakes, specifically relating to a noise reduction braking component and a pneumatic disc brake and mining vehicle using the same. Background Technology

[0002] Mining trucks, as core transportation equipment in open-pit mining operations, are classified as off-highway special vehicles and are mainly used in mining scenarios. After years of technological development, a mature technological system has been formed, and the loading capacity of mainstream products has exceeded 300 tons. In recent years, driven by the rapid economic development of neighboring countries and Africa, the market demand for mining trucks has shown a continuous growth trend.

[0003] Currently, drum brakes are still the dominant technology for braking systems of heavy vehicles. Although my country has begun to use air disc brakes in the field of heavy trucks, the research and development and application of related products in the field of mining trucks, which have higher technical content, are still blank. In addition, traditional mining truck brakes also have problems such as limited braking torque, insufficient braking stability, and high noise. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a noise reduction braking component, a pneumatic disc brake, and a vehicle.

[0005] The purpose of this application is achieved through the following technical solution:

[0006] In a first aspect, a noise-reducing braking component is provided, comprising:

[0007] The brake caliper body has an automatic clearance adjustment mechanism;

[0008] Two friction pads, designated as a first friction pad and a second friction pad, are arranged parallel to each other within the brake caliper body and located on opposite sides of the axle. Both the first and second friction pads have noise reduction devices on their outer outer walls.

[0009] The friction plate assembly structure is disposed on the upper part of the first friction plate and the second friction plate.

[0010] In some embodiments, the friction pad assembly structure includes:

[0011] Two compression springs, including a first compression spring and a second compression spring, are respectively disposed on the top of the first friction plate and the second friction plate to prevent the first friction plate and the second friction plate from falling off; and

[0012] A single pressure plate is disposed on top of the first and second pressure springs and connected to the brake caliper body.

[0013] In some embodiments, the noise reduction device employs a sound-absorbing pad.

[0014] Secondly, a pneumatic disc brake is provided, which, in addition to the aforementioned noise-reducing braking components, also includes:

[0015] Brake bracket, disposed at the bottom of the brake caliper body; and

[0016] A connecting device, disposed between the brake caliper body and the brake bracket, includes a bushing, a sliding pin, a locking bolt, and a seal. The sliding pin connects the brake bracket to the brake caliper body via the locking bolt. The bushing has a self-lubricating function and is disposed on the outer side wall of the sliding pin. The bushing, the sliding pin, and the brake caliper body together constitute a structure in which the brake caliper body is driven to reciprocate along the axial direction of the sliding pin by sliding within the bushing. The seal is disposed between the sliding pin and the brake bracket to ensure the sealing performance of the pneumatic disc brake.

[0017] In some embodiments, the seal employs a double-seal structure.

[0018] Thirdly, a mining vehicle is provided, comprising a plurality of the aforementioned pneumatic disc brakes, all of which can be mounted on a single wheel rim of the mining vehicle.

[0019] The beneficial effects of this utility model are: the air disc brake has a simple structure and adopts a lightweight design, which reduces the weight of the brake to the maximum extent while ensuring product performance; the air disc brake has a noise reduction device, which can effectively reduce noise; multiple air disc brakes can be applied to a single wheel rim of mining vehicles at the same time, which can effectively meet the braking torque of large mining vehicles; in addition, the air disc brake also adopts a double sealing structure, which significantly improves the waterproof performance and service life of the product. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a noise reduction braking component provided in one embodiment of the present invention;

[0022] Figure 2This is a schematic diagram of the connecting device provided in one embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of a pneumatic disc brake provided in one embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the friction plate provided in one embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the first compression spring provided in one embodiment of the present invention. Detailed Implementation

[0026] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0027] This invention provides a noise-reducing braking component that solves the problems of limited braking torque, insufficient braking stability, and high noise levels in traditional mining truck brakes. This invention also provides a pneumatic disc brake using this noise-reducing braking component, and a mining vehicle using this pneumatic disc brake.

[0028] like Figure 1 As shown, in one embodiment, a noise reduction braking assembly 30 is provided, including a brake caliper 301, two friction pads 302 and a friction pad assembly structure 303.

[0029] The brake caliper body 301 has an automatic gap adjustment mechanism 3011. In one embodiment, the automatic gap adjustment mechanism 3011 is installed inside the brake caliper body 301. When the two friction pads 302 wear, the automatic gap adjustment mechanism 3011 will automatically adjust the brake gap according to the wear condition of the two friction pads 302, so that the entire noise reduction braking assembly 30 is always in a stable and effective state. The inner cavity of the brake caliper body 301 is equipped with an air chamber sealing ring 3012 to ensure the sealing effect of the brake caliper body 301.

[0030] Two friction plates 302, namely a first friction plate 3021 and a second friction plate 3022, are arranged parallel to each other within the brake caliper body 301 and located on both sides of the axle. Noise reduction devices are provided on the outer walls of both the first friction plate 3021 and the second friction plate 3022. In one embodiment, such as... Figure 1 and Figure 4As shown, two friction pads 302 are arranged parallel and spaced apart within the brake caliper body 301 and located on opposite sides of the axle, respectively, as the first friction pad 3021 and the second friction pad 3022. Noise reduction devices 3023 are installed on the sides and bottom of both the first friction pad 3021 and the second friction pad 3022, which can effectively reduce the noise generated during braking. In one embodiment, the noise reduction device 3023 is a sound-absorbing pad, but other structures with noise reduction and silencing functions can also be used instead.

[0031] In one embodiment, when the vehicle brakes, the first friction pad 3021 and the second friction pad 3022 clamp the brake disc on the axle to generate torque and decelerate the vehicle; when the vehicle releases the brake, the first friction pad 3021 moves away from the brake disc quickly due to inertia; the second friction pad 3022, although having inertia, moves away from the brake disc slowly due to the weight of the brake caliper 301.

[0032] The friction plate assembly structure 303 is disposed on the upper part of the first friction plate 3021 and the second friction plate 3022. The friction plate assembly structure 303 includes two compression springs 3031 and a single pressure plate 3032. The two compression springs 3031 include a first compression spring 3031a and a second compression spring 3031b. The first compression spring 3031a and the second compression spring 3031b are respectively disposed on the top of the first friction plate 3021 and the second friction plate 3022 to prevent the first friction plate 3021 and the second friction plate 3022 from falling off. The single pressure plate 3032 is disposed on the top of the first compression spring 3031a and the second compression spring 3031b and is connected to the brake caliper body 301. In one embodiment, as shown... Figure 1 and Figure 4-5 As shown, the first compression spring 3031a and the second compression spring 3031b are respectively installed on the first lug 3024 and the second lug 3025 of the corresponding friction plate through their respective slots, which can effectively prevent the compression spring from falling off during the assembly process; a single pressure plate 3032 is set on the upper part of the first compression spring 3031a and the second compression spring 3031b, and is connected to the brake caliper body 301 by fasteners.

[0033] like Figure 1-3 As shown, in one embodiment, a pneumatic disc brake 20 is provided, which, in addition to the noise reduction braking assembly 30 described above, also includes a brake bracket 201 and a connecting device 202.

[0034] The brake bracket 201 is disposed at the bottom of the brake caliper body 301; in one embodiment, as shown... Figure 2-3 As shown, the brake bracket 201 is located at the bottom of the brake caliper 301 and is connected to the brake caliper 301 through the connecting device 202. The bottom of the brake bracket 201 is fixed on the axle frame.

[0035] A connecting device 202 is disposed between the brake caliper body 301 and the brake bracket 201, and includes a bushing 2021, a sliding pin 2022, a locking bolt 2023, and a seal 2024. The sliding pin 2022 connects the brake bracket to the brake caliper body 301 via the locking bolt 2023. The bushing 2021 has a self-lubricating function and is disposed on the outer side wall of the sliding pin 2022. The bushing 2021, the sliding pin 2022, and the brake caliper body 301 together constitute a structure in which the brake caliper body 301 is driven to reciprocate along the axial direction of the sliding pin 2022 by sliding the sliding pin 2022 within the bushing 2021. The seal 2024 is disposed between the sliding pin 2022 and the brake bracket 201 to ensure the sealing performance of the pneumatic disc brake 20. In one embodiment, as shown... Figure 2-3 As shown, the connecting device 202 includes a bushing 2021, a sliding pin 2022, a locking bolt 2023, a seal 2024, and a sealing cover 2025. The sliding pin 2022 connects the brake bracket to the brake caliper body 301 via the locking bolt 2023. The bushing 2021 is pressed into the brake caliper body 301 and is disposed on the outer wall of the sliding pin 2022. The bushing 2021 has a self-lubricating function, allowing the sliding pin 2022 to slide within the bushing 2021 with less friction. 021, the sliding pin 2022, and the brake caliper body 301 together constitute a structure in which the brake caliper body 301 is driven to reciprocate along the axial direction of the sliding pin 2022 by sliding the sliding pin 2022 within the bushing 2021; the seal 2024 is disposed between the sliding pin 2022 and the brake bracket 201, employing a double sealing structure to ensure the sealing performance of the pneumatic disc brake 20; the sealing cover 2025 is disposed at the pin hole at the right end of the brake caliper body 301. In one embodiment, as... Figure 2-3 As shown, the left side of the seal 2024 is tightly fitted with the guide pin groove inside the brake caliper body 301. A retaining ring 2026 is provided at the left end of the seal 2024, which can effectively prevent the seal 2024 from coming out. The right side of the seal 2024 has a skeleton and is interference-fitted with the guide pin sealing hole of the brake caliper body 301, which can effectively improve the sealing performance, thereby improving the waterproof performance and service life of the entire structure.

[0036] In one embodiment, a mining vehicle 10 is provided, including a plurality of the above-described pneumatic disc brakes 20, all of which can be mounted on a single wheel rim of the mining vehicle 10 to meet the braking torque requirements of large mining vehicles.

[0037] The noise reduction braking component 30 provided by this utility model has a simple structure and adopts a noise reduction device 3023, which can effectively reduce noise. The air disc brake 20 made with the noise reduction braking component 30 provided by this utility model adopts a lightweight design, which reduces the weight of the brake to the maximum extent while ensuring product performance. In addition, the air disc brake 20 also has the characteristics of strong waterproof performance and long service life. Multiple air disc brakes 20 can be used on a single wheel rim of mining vehicles to meet the requirements of mining vehicles for large braking torque.

[0038] The above description is merely a preferred embodiment of one or more embodiments of this specification and is not intended to limit the scope of one or more embodiments of this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the protection scope of one or more embodiments of this specification.

Claims

1. A noise-reducing braking component, characterized in that, include: The brake caliper body has an automatic clearance adjustment mechanism; Two friction pads, namely the first friction pad and the second friction pad, are arranged in parallel at intervals in the brake caliper body and are located on both sides of the axle. The outer walls of the first friction pad and the second friction pad are equipped with noise reduction devices. as well as The friction plate assembly structure is disposed on the upper part of the first friction plate and the second friction plate; The friction plate assembly structure includes: Two compression springs, including a first compression spring and a second compression spring, are respectively disposed on the top of the first friction plate and the second friction plate to prevent the first friction plate and the second friction plate from falling off; as well as A single pressure plate is disposed on top of the first and second pressure springs and connected to the brake caliper body.

2. The noise reduction braking assembly according to claim 1, characterized in that, The noise reduction device uses a sound-absorbing pad.

3. A pneumatic disc brake, characterized in that, In addition to the noise reduction braking component as described in any one of claims 1-2, it also includes: Brake bracket, disposed at the bottom of the brake caliper body; and A connecting device, disposed between the brake caliper body and the brake bracket, includes a bushing, a sliding pin, a locking bolt, and a seal. The sliding pin connects the brake bracket to the brake caliper body via the locking bolt. The bushing has a self-lubricating function and is disposed on the outer side wall of the sliding pin. The bushing, the sliding pin, and the brake caliper body together constitute a structure in which the brake caliper body is driven to reciprocate along the axial direction of the sliding pin by sliding within the bushing. The seal is disposed between the sliding pin and the brake bracket to ensure the sealing performance of the pneumatic disc brake.

4. The pneumatic disc brake according to claim 3, characterized in that, The seal adopts a double sealing structure.

5. A mining vehicle, characterized in that, The invention includes a pneumatic disc brake as described in any one of claims 3-4, and all of the pneumatic disc brakes may be mounted on a single wheel rim of the mining vehicle.

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