Brake control valve for fast railway freight cars and method of operation thereof

A technology for brake control and railway wagons, which is applied in the direction of control valves and air release valves, brakes, brake components, etc., and can solve problems such as long boosting time

Active Publication Date: 2015-07-29
LOCOMOTIVE & CAR RES INST OF CHINA ACAD OF RAILWAY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the 120 valve was originally designed for heavy-duty freight trains, it adopts the method of controlling the pressure of the brake cylinder to jump first and then rise slowly to reduce the longitudinal impulse of the train, so the boosting time is longer

Method used

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  • Brake control valve for fast railway freight cars and method of operation thereof
  • Brake control valve for fast railway freight cars and method of operation thereof

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Embodiment Construction

[0026] The present invention is to provide a brake control valve for fast railway wagons that shortens the braking idling time to shorten the braking distance and the working method of the brake control valve. Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] figure 1 Shown in is the schematic diagram of the connecting structure of the air brake of the express railway wagon of the present invention. The fast railway freight car brake shown in the figure includes a control valve main valve 1 , an intermediate body 2 connected with the main valve 1 , and an air charging valve 3 connected with the intermediate body 2 . The average valve 4 and the regulating valve 5 for adjusting the brake cylinder pressure are both communicated with the main valve 1 through the intermediate body 2, and the intermediate body 2 is also communicated with the air cylinder assembly and the train pipe 7, so The aver...

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Abstract

The invention relates to the field of brake control for rail vehicles, in particular to a brake control valve for an express rail wagon. The brake control valve is designed through necessary improvement on a 120 type valve. The brake control valve comprises a main valve, an emergency valve, and an intermediate body and an air cylinder assembly which are connected with the main valve and the emergency valve. To be matched with stepless empty and load brake equipment, the brake control valve further comprises an inflation valve which is indirectly communicated with a train pipe and the air cylinder assembly through the intermediate body and is used for inflation; and the inflation vale is connected with a control valve through the intermediate body. In order to meet the requirement of the express wagon on a brake distance, the pressure rising time of a brake cylinder is adjusted to be 5 to 7s, and remission time is adjusted to be 7 to 9s. By the technical scheme, the invention provides the brake control valve for the express rail wagon. The brake control valve shortens brake idling time to shorten the brake distance in an indirect action mode.

Description

technical field [0001] The invention relates to the field of brake control of rail vehicles, more specifically, the invention relates to a brake control valve of fast railway freight cars. Background technique [0002] At present, the braking system of railway freight cars in my country is basically composed of 120 type control valve or GK type three-way valve, two-level manual or KZW-4 type automatic empty-load vehicle adjustment device, ф356mm brake cylinder, automatic brake shoe clearance adjuster and high phosphorus cast iron Brake shoes and other components; the braking ratio is about 8.3-9.3. The 120-type control valve is the main type of truck control valve in my country. Its control mode adopts the direct pressure action mode, which has the advantage of high wave speed for braking relief. However, because the 120 valve was originally designed for heavy-duty freight trains, it adopts the method of controlling the pressure of the brake cylinder to jump first and then r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T15/02
Inventor 陶强姚小沛吴培元孙德环
Owner LOCOMOTIVE & CAR RES INST OF CHINA ACAD OF RAILWAY SCI
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