Method and device for braking quick railway freight car

A technology for braking devices and freight cars, applied in hydraulic braking transmissions, railway car body parts, brakes, etc., can solve the problems of reducing the air pressure of the brake cylinder of an empty car, and achieve shortened braking distance, high linearity and Excellent sensitivity and anti-vibration performance

Inactive Publication Date: 2011-08-31
LOCOMOTIVE & CAR RES INST OF CHINA ACAD OF RAILWAY SCI
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original braking system cannot greatly reduce the air pressure of the empty brake cylinder

Method used

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  • Method and device for braking quick railway freight car
  • Method and device for braking quick railway freight car
  • Method and device for braking quick railway freight car

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Embodiment Construction

[0067] The present invention aims to provide a railway fast freight car braking method that can increase the braking force, shorten the braking distance, can arrange passenger trains, and can automatically adjust the braking force steplessly as the load of the vehicle changes. The increase and decrease of vehicle load can be automatically and steplessly changed within a certain range, and the braking rate is kept basically constant, with shorter braking idling time and higher braking force, so as to ensure safe driving braking distance. Simultaneously, the present invention also provides a railway fast freight car braking system adopting the above method, which has high reliability, good anti-vibration performance, good dynamic performance, high linearity and sensitivity, and can maintain braking rate It is basically constant and can be mixed with the braking system of passenger trains. The specific embodiments of the braking method and the braking device used in the present i...

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Abstract

The invention relates to a method and system for braking a railway vehicle, which have the advantages of higher brake force, shorter idling braking time and brake cylinder boosting and relieving time and capabilities of shortening the braking distance, arranging passenger trains and adjusting the brake force according to the change of the weight of the vehicle. A high-friction-coefficient composition brake shoe with a higher friction coefficient is adopted, and the pressures of the brake cylinder and the brake shoe are controlled on the basis of measurement of the vehicle load by using a sensing valve, so that stepless control of the brake force of a quick freight car is realized; and the idling braking time and the brake cylinder relieving time are shortened by changing the inflation anddeflation time of the brake cylinder. The invention provides a method and system for braking a quick railway freight car. By adopting the method and system, the stepless change of the brake force canbe realized with the load increase and decrease change of the vehicle at the same time of improving the brake force and shortening the idling breaking time, therefore the safety traveling braking distance is ensured; meanwhile, the device has the advantages of high reliability, high vibration insulation, high dynamic performance, higher linearity and high sensitivity.

Description

technical field [0001] The invention relates to a brake brake with higher braking force, shorter brake idling time and brake cylinder boosting and release time, which can shorten the braking distance, can be used to organize and hang passenger trains, and can adapt to changes in vehicle weight and can be adjusted A braking method for a rail vehicle and a system using the method on the rail vehicle, more specifically a braking method and device suitable for railway fast freight cars. Background technique [0002] The existing truck brake system is designed according to the locomotive power concentrated traction weight 10000t train, and the train formation can reach 120. At present, the braking system of railway wagons in my country is basically composed of 120 type control valve or GK type three-way valve, two-level manual or KZW type (or series) automatic empty-load vehicle adjustment device, a brake cylinder with a diameter of 356mm or 254mm, and an automatic brake shoe cle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T11/10B60T8/22B61H11/10
Inventor 王京波陶强姚小沛
Owner LOCOMOTIVE & CAR RES INST OF CHINA ACAD OF RAILWAY SCI
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