Railway vehicle energy absorption structure

Abstract

The invention discloses a railway vehicle energy absorption structure which is structurally characterized in that the railway vehicle energy absorption structure comprises a gradient multi-cell energy absorption pipe, a filling piece, a mounting plate and a guide rod, and one end of the gradient multi-cell energy absorption pipe is fixedly connected with the mounting plate; the gradient multi-cell energy absorption pipe comprises a plurality of cells, each cell is surrounded by a plurality of side walls to be tubular, and the thickness of the side wall of each cell is gradually increased at a preset gradient from the middle of the side wall to the edges of the two ends of the side wall. The guide rod is arranged in the cell in the center in a penetrating mode, at least one side wall in each cell on the periphery is provided with a bevel rib plate structure, and the extending direction of the bevel rib plate structures is parallel to the extending direction of the side walls of the cells. And cavities of the cells at the periphery are filled with the filling pieces.

Description

technical field [0001] The invention relates to the field of vehicle collision safety structure design, in particular to an energy-absorbing structure for rail vehicles. Background technique [0002] Passive safety in the event of a rail vehicle collision is an important part of vehicle operation safety. With the rapid development of my country's rail transit, the requirements for vehicle safety are getting higher and higher, and the design of collision energy-absorbing structures on rail vehicles has attracted much attention. [0003] The passive energy absorbing device of rail vehicles generally consists of a hook buffer device, an anti-climbing energy absorbing device, and a main energy absorbing device. When a collision occurs, the passive energy-absorbing device performs plastic deformation sequentially according to the different collision energies, and dissipates the collision energy in a controllable and gradual manner, so as to better protect the safety of drivers, p...

AI Technical Summary

Problems solved by technology

However, the load of rail transit vehicles is much greater than that of automobiles, and the energy generated in the event of a collision is huge, and the longitudinal impact force and vertical force are quite significant. The energy-absorbing structure used in general automobiles is not suitable for rail transit

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