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Parking brake device for brake cylinder of railway vehicle

A technology for parking brakes and rail vehicles, applied in the direction of hydraulic brake transmissions, etc., can solve problems such as difficult maintenance, and achieve the effects of low processing cost, light weight and compact structure

Active Publication Date: 2012-10-31
LOCOMOTIVE & CAR RES INST OF CHINA ACAD OF RAILWAY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Difficult to maintain

Method used

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  • Parking brake device for brake cylinder of railway vehicle
  • Parking brake device for brake cylinder of railway vehicle
  • Parking brake device for brake cylinder of railway vehicle

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] Secondly, the present invention is described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the schematic diagrams are only examples, which should not limit the protection scope of the present invention.

[0020] As described in the background, in the prior art, the manual release mechanism of the parking brake device for the brake cylinder...

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Abstract

The invention provides a parking brake device for a brake cylinder of a railway vehicle. According to the parking brake device, in the case of needing operations of braking, resetting and manual brake releasing, a movable component parking brake ejection rod, a manual-released wedge pin, a rotary shaft, a guide block, a tension spring and a slide block in the parking brake device slide or rotate relative to one other, and other components such as a ratchet wheel, a ratchet tongue, a clutch and a screw nut are not needed, therefore, the parking brake device is compact in structure, small in size and light in mass. Additionally, a brake spring group serves as energy storage springs, the requirements on a machining process of the springs are low, and the machining cost is low. During the operation of the parking brake device, the rotation motions among the components are few, the structure is simple and convenient for extension, and the maintenance cost and the overhaul time are reduced.

Description

technical field [0001] The device relates to the field of rail vehicle control, in particular to a parking brake device for a brake cylinder of a rail vehicle. Background technique [0002] The parking brake device is mainly used to stop the train or vehicle on the track for a long time. Parking brakes mostly use springs to store energy. When the parking brake function is not needed, the compressed air overcomes the spring force and compresses the spring to store energy for the spring; after the compressed air is discharged, the spring releases energy to realize the parking brake function. [0003] The spring energy storage type parking brake device generally requires the functions of parking brake, parking brake release and manual release. The application and release of the parking brake is based on the discharge and charging of compressed air. When the compressed air is charged, the air will do work on the piston, and the spring connected to the piston will compress and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T11/10
Inventor 韩晓辉赵春光李业明张思远张庆爽
Owner LOCOMOTIVE & CAR RES INST OF CHINA ACAD OF RAILWAY SCI