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Integrated parking brake device for vehicles

A technology for parking and car use, applied in the field of braking devices, can solve the problems of increasing the hydraulic system and cost, and achieve the effects of increasing braking torque, eliminating the need for return devices, and having a simple structure

Active Publication Date: 2020-02-04
CRRC QISHUYAN INSTITUTE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the friction pair of the wet brake adopts forced oil cooling, an additional supporting hydraulic system and cost are added

Method used

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  • Integrated parking brake device for vehicles
  • Integrated parking brake device for vehicles
  • Integrated parking brake device for vehicles

Examples

Experimental program
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Effect test

Embodiment 1

[0028] See Figure 1 to Figure 9 , Embodiment 1 includes a driving end cover 1, a driving cylinder body 2, a driving piston 3, a cylindrical intermediate body 5, a brake friction pair assembly 6, a parking cylinder body 7, a parking piston 8, a parking end cover 9 and a main Parking spring 10. The brake friction pair assembly 6 is composed of a friction plate 6-1 and a brake disc 6-2 arranged at intervals, and the friction plate and the intermediate body 5 constitute an axial movement pair. The driving end cover 1 and the parking end cover 9 are respectively connected to both ends of the intermediate body 5, and the driving cylinder 2 and the parking cylinder 7 are respectively located on both sides of the friction pair assembly 6 and are connected to the driving end cover 1 respectively. Connect with the parking end cover 9. The driving cylinder 2 and the parking piston 8 have a through cavity, and the friction plate 6-1 and the brake disc 6-2 of the brake friction pair ass...

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PUM

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Abstract

A traveling and parking integrated braking device for an automobile comprises a traveling end cover, a traveling cylinder, a traveling piston, a cylindrical intermediate body, a braking friction pair assembly, a parking cylinder, a parking piston, a parking end cover and a main parking spring. The traveling end cover and the parking end cover are connected to the two ends of the intermediate body correspondingly. The traveling cylinder and the parking cylinder are located on the two sides of the friction pair assembly correspondingly, the traveling cylinder is connected with the traveling end cover, and the parking cylinder is connected with the parking end cover. The traveling piston is arranged on the traveling cylinder in a matched and sleeving manner and can abut against the friction pair assembly. A traveling braking oil cylinder is formed by an annular gap between the traveling piston and the traveling cylinder. The parking piston is arranged in a cavity of the parking cylinder in a matched manner and can abut against the friction pair assembly, and a parking braking oil cavity is formed by an annular gap between the parking cylinder and the parking piston. Each spring hole is internally provided with a parking spring abutting against the parking end cover. According to the traveling and parking integrated braking device, the space can be sufficiently utilized, the structure is simple and compact, and the traveling and parking integrated braking device is suitable for being flexibly matched with various automobiles with the narrow designed space.

Description

technical field [0001] The invention relates to braking devices. Background technique [0002] The invention patent application with Chinese application number 201210109980.X discloses a driving and parking linkage multi-disc wet hydraulic brake, including a brake seat, a floating seal seat, a front flange, a parking piston, a parking cylinder, an inner ring gear, Brake friction plate group, driving cylinder, driving piston and rear flange, the parking piston is supported on the parking cylinder; a group of brake springs is also installed between the parking piston and the front flange, by The spring force presses the brake friction plate group through the parking piston to generate braking torque; the driving piston is supported on the driving cylinder, and a set of return bolts are installed on the driving piston. There is a return spring set on the position bolt, which is installed on the rear flange through the light hole on the driving piston, and the spring force gene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D55/22F16D65/14F16D65/40F16D121/04
CPCF16D55/22F16D65/14F16D65/40F16D2121/04
Inventor 陈学伟顾华锋刘宇王能孙龙跃王阳朱成元
Owner CRRC QISHUYAN INSTITUTE CO LTD
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