Contact integrated buffering and energy absorbing device for rail transit vehicle

Abstract

The invention relates to the technical field of passive safety of rail transit vehicles, and in particular relates to a contact integrated buffering and energy absorbing device for a rail transit vehicle. The device comprises a first energy-absorbing mounting seat, a second energy-absorbing mounting seat, a first-stage guide rod, a second-stage guide rod and an energy-absorbing body. A plurality of airbags are evenly arranged on the side wall of the first-stage guide rod, the second-stage guide rod is sleeved with the energy-absorbing body. The guide rods, the airbags and the energy-absorbing mounting seats are matched to realize first-stage buffering and energy absorption, the energy-absorbing body, the second-stage guide rod, the energy-absorbing mounting seats and a steering connecting structure are matched to realize second-stage crushing energy absorption, and meanwhile, the six-degree-of-freedom characteristic of a joint ball bearing is ingeniously utilized; the function that a middle energy-absorbing module moves along with the vehicle in the horizontal direction and the vertical direction is achieved, the longitudinal bearing capacity of the device is effectively enhanced, the anti-instability capacity of the middle vehicle in the train collision process is improved, and the buffering and energy-absorbing device has the advantages of being high in reliability, high in anti-instability capacity and capable of being repeatedly used.

Description

technical field [0001] The invention relates to the technical field of passive safety of rail transit vehicles, in particular to a contact integrated buffer energy-absorbing device for rail transit vehicles. Background technique [0002] The research on the passive safety of rail transit vehicles is of great significance to protect the safety of passengers and prevent excessive plastic deformation of the vehicle body structure during collisions. As an additional energy-absorbing structure for rail transit vehicles, the energy-absorbing anti-climbing device absorbs the collision kinetic energy of the vehicle through the plastic deformation of its structure, reduces the acceleration caused by the impact of the vehicle, and avoids damage to the occupants caused by excessive acceleration. [0003] And in the existing energy-absorbing device technology, such as a kind of energy-absorbing device disclosed in Chinese Patent Publication No. CN113335331A and a kind of rail vehicle, t...

AI Technical Summary

Problems solved by technology

This device solves the problem of poor energy absorption effect and low energy absorption efficiency of the energy absorption device of the rail vehicle in the prior art; but the energy absorption device is a separate structure, and there is a problem that it cannot be effectively engaged during the collision process

Images