Railway vehicle and parking brake relieving system thereof

A technology for parking brakes and rail vehicles, applied in the field of rail vehicles, can solve the problems of high labor intensity, inability to operate, and ease the difficulty of parking brakes, etc., to achieve easy maintenance, reduce labor intensity, and solve problems that are difficult or even impossible The effect of the operation

Active Publication Date: 2014-11-19
ZHUZHOU ELECTRIC LOCOMOTIVE CO
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Problems solved by technology

[0008] Therefore, when the vehicle has no electricity, the parking brake can only be released manually through mechanical operation outside the vehicle, which requires a lot of labor intensity for the staff. At the same time, there may be problems such as the small space of the vehicle parking area to release the parking brake on the outside of the vehicle. Difficult or impossible braking problems

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  • Railway vehicle and parking brake relieving system thereof
  • Railway vehicle and parking brake relieving system thereof

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Embodiment Construction

[0029] The invention discloses a rail vehicle and its parking relief brake system. Through the transformation of the control air circuit, the pressure air stored in the air suspension air cylinder on the vehicle can be used to relieve the parking of the vehicle when the vehicle has no electricity. Braking is convenient for vehicle operation and maintenance.

[0030] 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.

[0031] see figure 2 , figure 2 The schematic diagram of the air circuit of the rail vehicle parkin...

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Abstract

The invention discloses a parking brake relieving system of a railway vehicle. A parking braking check valve is arranged between a brake air cylinder and a parking brake control pulse valve; a normally open first cutout cock is arranged in the middle of an air path of an air suspension air cylinder towards a height valve and an air spring, and a pipeline leads out of the position between the air suspension air cylinder and the first cutout cock and is connected to the position between the parking brake check valve and the parking brake control pulse valve through a normally closed second cutout cock; after air pressure in the vehicle decreases to a certain value and parking brake is carried out automatically, a worker can introduce compressed air in the air suspension air cylinder into a brake by operating an on position and an off position of each cutout cock, and therefore parking brake of the brake is relieved. The parking brake relieving system of the railway vehicle can relieve parking brake of the vehicle by using the compressed air stored in the air suspension air cylinder on the vehicle when the vehicle has no power, relieve labor intensity of workers and bring convenience to operation and maintenance of the vehicle.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a rail vehicle and its parking relief braking system. Background technique [0002] At present, most domestic rail transit vehicles use air brake systems, and for safety reasons, they all have parking brake functions. Generally, a brake with parking braking function is installed on each axle. The brakes with parking braking function on the two axles of the same bogie are arranged diagonally. The parking braking relief method is as follows: [0003] 1. When the rail transit vehicle is powered on, all the parking brakes of the entire train can be relieved by pressing the parking brake release button in the cab to send a release command electric signal to the parking brake pulse valve B19 of each vehicle. [0004] 2. When the rail vehicle is without electricity, the air compressor stops working, and the air pressure of the vehicle air pipeline is continuously reduced due to a...

Claims

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Application Information

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IPC IPC(8): B61H11/10B60T13/70
Inventor 马喜成汪波毛如香张彦华刘亚宁王鑫孙瑶齐晓明
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO
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