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Locomotive and backup braking device thereof

A backup braking and locomotive technology, applied in the field of rail vehicles, can solve the problems of particularly obvious lag, easy to cause accidents, inconvenient operation of the braking effect driver, etc., to achieve the effect of shortening the lag time and reducing the risk of accidents

Active Publication Date: 2018-04-17
QINGDAO SRI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

When the locomotive needs to start the backup brake, the operator needs to put the handle of the backup brake valve in the braking position first, and the braking effect will be produced after a period of time. In the case of long train formation, the lag of the backup brake is particularly Obviously, the hysteresis of the braking effect will make it inconvenient for the driver to operate, and it is easy to cause accidents during the hysteresis

Method used

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  • Locomotive and backup braking device thereof
  • Locomotive and backup braking device thereof
  • Locomotive and backup braking device thereof

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0022] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Please refer to figure 1 , figure 2 , Figure 3(a) and Figure 3(b), figure 1 It is a schematic diagram of a specific embodiment of the present invention; figure 2 It is a schematic diagram of the connecti...

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Abstract

The invention discloses a locomotive backup braking device which comprises a backup braking relay valve and a backup braking valve. The backup braking relay valve is connected with a train pipe and can reduce the pressure of the train pipe so that train backup braking can be realized. The backup braking valve is connected with the backup braking relay valve through a backup main pipe and can reduce the pre-control pressure of the backup braking relay valve so that the pressure of the train pipe can be reduced by the backup braking relay valve. The backup braking valve is connected with a pressure relief air cylinder in parallel, and the pressure relief air cylinder is used for sharing pressure with a backup main pipe when a locomotive conducts backup braking so as to reduce the pre-controlpressure of the backup braking relay valve. A control device for controlling the connection and disconnection of the pressure relief air cylinder and the backup main pipe is arranged between the pressure relief air cylinder and the backup main pipe. By means of the backup braking device, after the backup braking valve is switched on, the backup main pipe can be communicated with the pressure relief air cylinder, the backup main pipe relieves pressure to the atmosphere and the pressure relief air cylinder at the same time, and therefore the lag time of braking is shortened, and event risks arereduced.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a backup braking device for a locomotive. The invention also relates to a locomotive comprising the above-mentioned backup braking device. Background technique [0002] At present, in order to enable the rail vehicle to effectively brake when a breakdown occurs and prevent accidents, a backup brake device is generally provided in the locomotive, and the backup brake releases the pressure of the train pipe to realize the brake of the locomotive. When the locomotive needs to start the backup brake, the operator needs to put the handle of the backup brake valve in the braking position first, and the braking effect will be produced after a period of time. In the case of long train formation, the lag of the backup brake is particularly Obviously, the hysteresis of the braking effect will make the driver's operation inconvenient, and it is easy to cause accidents during the hyst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61H11/10
CPCB61H11/10
Inventor 黎丹方长征毛金虎曾萍邓李平黄金虎李振民易艳武
Owner QINGDAO SRI TECH CO LTD
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