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Manual relieving device of parking brake cylinder

A parking brake and cylinder technology, which is applied to railway braking systems, operating mechanisms, transportation and packaging of railway vehicle brakes, can solve the problems of manual alleviation of parking brakes, and achieves improved operational convenience and reduced maintenance. Cost and effect of ensuring vehicle safety

Active Publication Date: 2017-12-22
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a novel parking brake cylinder manual release device with a labor-saving structure in view of the lack of laborious manual release of the parking brake in the manual release device in the prior art

Method used

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  • Manual relieving device of parking brake cylinder
  • Manual relieving device of parking brake cylinder
  • Manual relieving device of parking brake cylinder

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the embodiments described in the specific implementation are only some of the embodiments of the present invention, rather than all the embodiments. 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.

[0029] The invention provides a hand release device for a parking brake cylinder. The device changes the connection mode of the pull wire and the ratchet mechanism, thereby changing the force bearing mode of the pull, so that labor-saving hand release can be realized.

[0030] The parking brake cylinder hand release device is used to release the parking brake of the parking brake cylinder.

[0031] refer to figure 1 , The parking brake cylinder incl...

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Abstract

The invention relates to a manual relieving device of a parking brake cylinder. The device is used for relieving parking and brake of the parking brake cylinder. The parking brake cylinder comprises a cylinder body, a parking energy storage mechanism which is arranged in the cylinder body and a force transmission sleeve which is inserted into the cylinder body in the axial direction and is matched with the parking energy storage mechanism for motion, and the parking brake cylinder further comprises a ratchet wheel which is arranged on the outer wall of the force transmission sleeve in a sleeving mode, a ratchet wheel locking claw which can achieve brake of the ratchet wheel and the manual relieving device; the manual relieving device comprises a pull cord, the pull cord is connected with the ratchet wheel locking claw through a lever mechanism, the lever mechanism comprises a cam mechanism which is connected with the pull cord and can rotate when being pulled by the pull wire, and the lever mechanism can be in contact with the ratchet wheel locking claw to control leaving of the ratchet wheel locking claw and locking of ratchet wheel teeth in the rotation process of the cam mechanism. According to the manual relieving device of the parking brake cylinder, the connection mode of the manual relieving device of the parking brake cylinder and the ratchet wheel locking claw is changed, a lever cam amplifying mechanism is adopted in the narrow and small space, and the manual relieving tension of parking brake is effectively lowered.

Description

technical field [0001] The invention belongs to the technical field of rail locomotive vehicle braking, and relates to a parking brake cylinder for rail locomotives, in particular to a hand release device for the parking brake cylinder. Background technique [0002] At present, rail transit locomotives are mostly equipped with unit braking devices with parking braking functions (such as tread braking units, brake caliper units), and the functional modules of parking braking are realized by parking brake cylinders, which have Exhaust air braking, air filling relief features, and a manual relief device is set at the same time. The parking brake cylinder hand relief device is an important part of the basic braking device of rail transit rolling stock, etc. When the train is windless or the brake device is faulty, operating the device when necessary can realize the release of the parking brake. [0003] The parking brake cylinder includes a ratchet and an inner cylinder connect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61H13/02
CPCB61H13/02
Inventor 王震王令军张昕张方亮黄建松刁有彬
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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