Collision energy absorption device for railway vehicle

Abstract

The present invention provides a collision energy absorption device for a railway vehicle. The collision energy absorption device for the railway vehicle comprises a connector, a base and an energy absorption tearing pipe arranged on the outer side of the connector in the radial direction, a pair or multiple pairs of kerfs corresponding in the radial position are formed in the inner and outer walls of the energy absorption tearing pipe, each pair of the kerfs comprises an inner kerf and an outer kerf, each kerf is an unclosed linear kerf, the width of each kerf is 0.05-0.8 mm, and the sum of the width of each pair of kerfs is less than the wall thickness of the energy absorption tearing pipe. By applying the collision energy absorption device for the railway vehicle, the peak of the initial collision force of the device can be obviously reduced, and the effective stroke can reach 100% theoretically. The device can be conveniently installed at the end of the railway vehicle, so that in the collision process of the vehicle, an effect of dissipating the collision kinetic energy is achieved.

Description

technical field [0001] The invention belongs to the field of collision energy-absorbing devices, in particular to a collision energy-absorbing device for rail vehicles. Background technique [0002] In recent years, with the rapid development of rail transit, people pay more and more attention to the safety of rail transit vehicles during operation. At the same time, the operation of rail transit is a large system integrating electricity, public works, vehicles, signals, crews, etc., and accidental human errors or mechanical failures are inevitable. Therefore, train collision accidents occur from time to time, causing huge casualties and property losses. Improving the crashworthiness of vehicles is the most effective way to reduce the impact of collision accidents. [0003] At present, when designing the crashworthiness of rail vehicles, the usual practice is to design the unmanned areas at both ends of the vehicle as weak stiffness, and design the manned areas as strong s...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the disadvantages of "high peak value of initial impact force" and "small effective stroke" in existing energy-absorbing devices for rail vehicles, the present invention provides a new collision energy-absorbing device for rail vehicles, which can significantly reduce the initial impact force of the device. The peak impact force, and the effective stroke can theoretically reach 100%

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