Acceleration system for high-speed train crash test

Abstract

The invention discloses an accelerating system for a collision experiment of a high speed train, wherein the accelerating system is stable in working state and enables a rolling stock to obtain a longer acceleration running distance. The accelerating system comprises a base, wherein an air storage cylinder is fixedly installed on the base, one end of the air storage cylinder is sealed through an end cover, the other end of the air storage cylinder is connected with a guiding cylinder, the guiding cylinder is provided with an auxiliary sliding block assembly and a foldable cylindrical flexible air bag in a sleeved mode, one end of the foldable cylindrical flexible air bag is connected with the auxiliary sliding block assembly in a sealed mode, the other end of the foldable cylindrical flexible air bag is sealed by a sealing plate, and a limiting assembly used for limiting sliding of the auxiliary sliding block assembly is arranged at one end, away from the air storage cylinder, of the guiding cylinder. When the accelerating system is utilized in the collision experiment of the high speed train, two-stage acceleration can be achieved, action time of driving force can be longer, the acceleration running distance of the rolling stock can be longer, the working state is stable, and the accelerating system is suitable for popularization and application in the field of equipment of the collision experiment of the high speed train.

Description

technical field [0001] The invention relates to the field of high-speed train collision experiment equipment, in particular to an acceleration system for high-speed train collision experiments. Background technique [0002] With the vigorous development of my country's national economy, especially the rapid development of high-speed railway construction, train collision accidents have become one of the most serious accidents affecting train operation safety. Such accidents will directly cause serious consequences of vehicle crashes and fatalities. The passenger cars of my country's railway high-speed trains are designed and manufactured according to the idea of ​​"thin-walled cylindrical structure and overall load bearing". Most of the chassis, side walls and ceiling structures are made of aluminum alloy sandwich structure materials. The weight of the vehicle is reduced and the structure is lightened. However, the body structure of a large number of extruded aluminum alloy pr...

AI Technical Summary

Problems solved by technology

In this patent, after the airbag is fully deployed, the trolley will separate from the airbag, and the driving force acting on the rolling stock will disappear. Therefore, in order to make the rolling stock obtain a longer acceleration distance, the length of the airbag must be increased, but the longer the airbag is, The longer it is, the more unfavorable it is to the stability of the unfolded state after inflation, and it is easy to cause the entire working state to be unstable.

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