Application of electric pneumatic braking rapid air charging device with air pressure supplement function

Abstract

The invention provides application of an electric pneumatic braking rapid air charging device with an air pressure supplement function, and relates to the technical field of application of carriage braking release. The application of the electric pneumatic braking rapid air charging device with the air pressure supplement function is characterized in that a locomotive supplies air to carriages; a control cable transmits a release instruction electric signal to an electric pneumatic distribution valve through a secondary control branch A, the electric pneumatic distribution valve obtains the release instruction electric signal to work, a release air pipe is connected to a braking branch pipe, and a release air cylinder conducts air charging on a braking main pipe through the release air pipe, the electric pneumatic distribution valve and the braking branch pipe; when the electric pneumatic distribution valve has a sense that the pressure of the braking main pipe is increased, and has obtained the release instruction electric signal from the secondary control branch A, a braking cylinder pipe is connected to the atmosphere; a, phase release of train braking is conducted, and b, direct release of train braking is conducted; and air charging is conducted, wherein air charging begins when train braking is released, in the process that an air compressor which conducts stable pressure output conducts air charging on the braking main pipe, when a serial control device enters the pressure maintaining position, air charging temporarily stops, and when the serial control device is located at the release position all the time, air charging is conducted to enable the constant pressure of the braking main pipe to be achieved.

Description

technical field [0001] The application of an electro-pneumatic braking speed filling device for supplementing air pressure relates to the technical field of vehicle braking relief application. Background technique [0002] my country's railway network spreads all over the country, and railway passenger transport is the mainstream means of transportation. [0003] During my country's railway operation, at 4:41 on April 28, 2008, the downlink Beijing-Qingdao passenger train T195 derailed between Wangcun and Zhoucun on the Jiaoji Line and rushed to the outside of the uplink base. At this time, the normal operation of the 5034 passenger train from Yantai to Xuzhou failed to brake enough, and finally collided with the derailed vehicle at a speed of 70 kilometers per hour, and the locomotive and the 1st to 5th carriages derailed. The Jiaoji railway train collision accident has caused 72 deaths and 416 injuries. [0004] Therefore, the train braking response time is short, and th...

AI Technical Summary

Problems solved by technology

[0007] But, the deficiency of this brake machine of prior art is: when the train is running normally, the filling or exhausting of the brake main pipe is controlled by the locomotive, and when the brake main pipe is filled with wind, the compressed air will be distributed through each vehicle. Valves / control valves flow to the pressure and auxiliary cylinders of this vehicle

However, since each vehicle is only controlled by electric signals when the electro-pneumatic brake is charged, the main wind source required in the process of charging the air is still provided by the locomotive, and the role of the air cylinder is only for the purpose of cooperating with the electro-pneumatic brake. To ensure the consistency of the relief of the whole train, even if the relief cylinder is added, under the control of the electric signal, the auxiliary cylinder and the pressure cylinder of each vehicle can start to fill the air almost at the same time, but the capacity of the relief cylinder is small and The maximum pressure will not exceed the constant pressure of the brake main pipe, and it will only provide a small amount of wind for the brake main pipe. Most of the wind still needs to be provided by the locomotive, and the air filling time cannot be effectively shortened.

[0013] It can be seen that no matter whether it is an automatic air brake or an electro-pneumatic brake, after a relief, the pressure in the auxiliary air cylinder fails to return to the standard value in a short period of time, and the brake cannot be applied when braking is required. Cylinders provide enough compressed air that the brakes don't produce enough braking force, or even no braking effect at all

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