Full-disc multi-plate dry type adjustable parking brake

A parking brake, adjustable technology, applied in the direction of brake type, axial brake, brake components, etc., can solve the problem that the parking brake force cannot be adjusted, the parking brake force can no longer be adjusted, and the parking brake force is not enough Uniformity and other issues, to achieve the effect of improving parking stability, simple structure, stable and uniform parking braking force

Active Publication Date: 2021-11-19
CRRC QISHUYAN INSTITUTE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the full-disc multi-plate dry parking brake generally uses multiple sets of cylindrical coil springs to provide the parking braking force, which requires high spring consistency, and after use, the parking braking force cannot be adjusted.
For example, the Chinese patent "a multi-plate dry brake" with the publication number CN204900607U provides parking braking force through multiple sets of cylindrical coil springs. Although the parking braking force is increased, the cost is increased, and it is necessary to ensure that all spring sizes and Stiffness should be consistent, otherwise it will easily lead to unstable parking brake, uneven parking brake force, etc. After the spring parameter design is completed, the parking brake force can no longer be adjusted

Method used

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  • Full-disc multi-plate dry type adjustable parking brake
  • Full-disc multi-plate dry type adjustable parking brake
  • Full-disc multi-plate dry type adjustable parking brake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0043] Such as Figure 1 to Figure 8The full-disc multi-disc dry adjustable parking brake shown includes a brake housing 1, a fastener 2, a piston housing 3 and a disc spring support cover 4, and the piston housing 3 and the disc spring are supported by the fastener 2 The cover 4 is sequentially fixedly installed on the rear end of the brake housing 1, thereby forming a closed cavity. A friction plate set 5, a piston 6 and a disc spring assembly 7 are sequentially installed in the cavity from front to back. During parking braking, the disc spring assembly 7 pushes the piston 6 to press the friction plate set 5 to achieve braking. The integral piston is adopted, and the parking braking force is provided by setting the disc spring assembly 7 instead of the traditional multiple sets of cylindrical coil springs. The axial dimension of the disc spring assembly 7 is small, the stiffness is stable, and the integrity is good, and the pressing force of the disc spring is fully converte...

Embodiment 2）

[0057] The structure of this embodiment is similar to that of Embodiment 1, the difference is that the outer diameter of the first steel plate 5-1 is smaller than the outer diameter of the friction plate 5-3, and the guide pin shaft 10 runs through the friction plate 5-3 and is aligned with the brake housing 1. Axially movable connection, the inner ring of the first steel plate 5-1 is provided with a spline, which is convenient to be fixedly connected with the output shaft of the automobile drive wheel motor, so that the first steel plate 5-1 follows the rotation of the motor and provides another friction plate The structure of group 5 is for the designer to choose.

Embodiment 3）

[0059] The structure of this embodiment is similar to that of Embodiment 1, the difference is that the structure of the friction plate 5-3 is different, such as Figure 9 As shown, it includes the second steel sheet 5-3-1, the friction block 5-3-2, the friction block back plate 5-3-3 and the rivet 5-3-4, the friction block 5-3-2 and the friction block back The plate 5-3-3 is fixedly connected by sintering or bonding, and then symmetrically riveted to both sides of the second steel plate 5-3-1 by rivets 5-3-4 to form an integral friction plate structure. Although the cost is high, However, it is especially suitable for the use of limited equipment and the need for a larger-sized integral friction plate, and has a wider application range.

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Abstract

The invention discloses a full-disc multi-plate dry type adjustable parking brake which comprises a brake shell, a piston shell and a disc spring supporting cover, wherein the piston shell and the disc spring supporting cover are sequentially and fixedly installed at the rear end of the brake shell through fasteners, and the brake shell, the piston shell and the disc spring supporting cover form a closed cavity. A friction plate set, a piston and a disc spring assembly are sequentially installed in the cavity from front to back, and the disc spring assembly is suitable for pushing the piston to press the friction plate set to achieve braking. A disc spring adjusting pad is arranged between the front end of the disc spring assembly and the piston, a shell adjusting pad is arranged between the brake shell and the piston shell, and abrasion of the friction plate set is compensated by adjusting the thickness of the disc spring adjusting pad and the thickness of the piston shell. According to the full-disc multi-plate dry type adjustable parking brake, the integrality is good, the braking efficiency is high, during actual use, the parking braking force can be adjusted in various modes according to needs, redesign is not needed, the structural design is simple, the manufacturing cost is low, the full-disc multi-plate dry type adjustable parking brake can adapt to different vehicle types, and the application prospect is wide.

Description

technical field [0001] The invention relates to the technical field of vehicle braking, in particular to an all-disk multi-plate dry adjustable parking brake. Background technique [0002] The parking brake usually refers to the manual brake installed on the motor vehicle, referred to as the hand brake, which is used to stabilize the vehicle after the vehicle has stopped, so as to avoid accidents caused by the vehicle slipping when the vehicle is parked on a slope. The vehicle brake can be used temporarily or combined with the service brake for emergency braking. [0003] At present, most of them are floating parking clamps on the market, and the general structure is relatively complicated, with many transmission parts and long axial dimensions. The power and compensation mechanism comes from one side, and the other side is passively pressed and compensated. However, the full-disk multi-plate dry parking brake generally uses multiple sets of cylindrical coil springs to pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D55/22F16D65/095F16D65/14F16D65/847F16D66/02F16D69/04F16D121/04F16D127/06
CPCF16D55/22F16D65/095F16D65/14F16D65/847F16D66/027F16D69/04F16D2121/04F16D2127/06
Inventor 孙龙跃陈学伟王阳王能刘宇於君
Owner CRRC QISHUYAN INSTITUTE CO LTD
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