An ever-changing car-end wall for rail vehicle car-end relationship test

Abstract

The invention relates to a universal car end wall used for the test of the relationship between the car ends of a rail vehicle, which is mainly composed of a left and right large knuckle unit assembly, a left and right extended unit assembly and a plurality of inner and outer unit assemblies; the left and right The side large knuckle unit assemblies are rotatably connected with two adjacent inner and outer unit assemblies through hinges respectively; the left extended unit assembly is respectively rotatably connected with two adjacent inner and outer unit assemblies through hinges, and The installation position of one inner and outer unit assembly is behind, parallel to the installation position of the other inner and outer unit assembly in the vertical plane; The unit assembly is rotationally connected. The ever-changing car end wall can simulate any form of car end wall outline size. The car end wall has good versatility, low cost, flexible and convenient assembly, and provides a simple and convenient ever-changing simulation device.

Description

technical field [0001] The invention relates to a car end wall used for the test of the car end relationship of a rail vehicle, in particular to an ever-changing car end wall which can simulate the car end walls of all rail vehicles. Background technique [0002] China's railways are in a period of vigorous development. With the sixth national railway speed increase in 2007, the Harmony CRH series EMUs appeared on Chinese railways for the first time, and achieved a high-speed operation of 250km / h on existing lines. It is the prelude to the development of high-speed railways. Since its development, the maximum speed of the EMUs in operation has reached 350km / h. However, with the increase of vehicle speed, the operating conditions of high-speed train vehicle ends and bogies become worse when the vehicle passes through the curve, and the safety and reliability problems of key components during operation become increasingly prominent. However, when the vehicle passes through th...

AI Technical Summary

Problems solved by technology

Since only one type of car end wall can be simulated, there are disadvantages of poor versatility and inconvenient adjustment

[0004] CN102128723A discloses a comprehensive test bench for car-end relationship, but no separate car-end wall is designed, and related tests are only carried out by adjusting the combination of different components installed at the car-end

Therefore, the outer dimension of the car end wall used in the existing car-end relationship test bench does not match the reality, and it is impossible to completely simulate the car end walls of all rail vehicles running on the actual line

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