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A full-disc multi-plate dry adjustable parking brake

A kind of parking brake, adjustable technology, applied in the direction of brake type, brake components, axial brake, etc., can solve the problem that the parking brake force cannot be adjusted, the parking brake cannot Uniformity and other problems, to achieve the effect of improving parking stability, simple structure, stable and uniform parking braking force

Active Publication Date: 2022-02-08
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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  • A full-disc multi-plate dry adjustable parking brake
  • A full-disc multi-plate dry adjustable parking brake
  • A full-disc multi-plate dry adjustable parking brake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0042] Such as Figure 1 to Figure 8 The 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 convert...

Embodiment 2）

[0056] 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）

[0058] 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-disk multi-plate dry-type adjustable parking brake, which comprises a brake housing, a piston housing and a disc spring support cover which are sequentially fixed and installed on the rear end of the brake housing through fasteners, the brake housing, The piston housing and the disc spring support cover form a closed cavity, and the friction plate group, the piston and the disc spring assembly are installed in the cavity in sequence from front to back, and the disc spring assembly is suitable for pushing the piston to press the friction plate group to achieve Braking; a disc spring adjustment pad is provided between the front end of the disc spring assembly and the piston, and a housing adjustment pad is provided between the brake housing and the piston housing. By adjusting the disc spring adjustment pad and the piston housing The thickness is suitable for compensating the wear of the friction disc pack. The invention has good integrity and high braking efficiency. In actual use, the parking braking force can be adjusted in various ways according to the needs without redesigning. The structure design is simple and the manufacturing cost is low, and it can be adapted to different vehicle types. , with broad application prospects.

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 Patents(China)
IPC IPC(8): F16D55/22F16D65/095F16D65/14F16D65/847F16D66/02F16D69/04F16D121/04F16D127/06
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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