Volume air cylinder external suspension type electric pneumatic braking device

Abstract

Disclosed is a volume air cylinder external suspension type electric pneumatic braking device. The volume air cylinder external suspension type electric pneumatic braking device is characterized in that the portions, located on the connected portions of carriages, of a main braking pipe are connected through braking hoses; an air compressor body is connected with an air compressor pipe, and the air compressor pipe is connected with a volume air cylinder; the volume air cylinder is connected with a volume pipe, and the volume pipe is connected with the main braking pipe; the air compressor body and an air compressor motor are connected with the bottom of a carriage body through a hanging bracket, and the air compressor body is connected with the air compressor motor; a braking cylinder is connected with a basic braking device; a release air cylinder is connected with an electric pneumatic distribution valve through a release air pipe, a control cable is connected with the electric pneumatic distribution valve through a secondary control branch A, and the electric pneumatic distribution valve is connected with an auxiliary air cylinder through an auxiliary air pipe; a jumper wire A is connected with a power connector A which is used by a locomotive and the adjacent carriage, and both the jumper wire A and the power connector A are connected with a power connector A for every two adjacent carriages; and a jumper wire B is connected with a power connector B which is used by the locomotive and the adjacent carriage, and both the jumper wire B and the power connector B are connected with a power connector B for every two adjacent carriages. The auxiliary air cylinder can be rapidly filled with air, and the time period ranging from 3m to 5m in the prior art is reduced to the time period ranging from 10s to 15s.

Description

technical field [0001] The utility model relates to an external electro-pneumatic braking device of a volume air cylinder, which relates to the technical field of vehicle braking relief. 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 the resp...

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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