A multi-stage active extension train anti-collision buffer structure

Abstract

The invention relates to a multi-stage active extending type train anti-collision buffer structure. The structure is arranged between a vehicle head and a first carriage; the structure comprises a first-stage anti-collision buffer module and a plurality of second-stage anti-collision buffer modules which are telescopically sleeved in sequence through multiple stages, wherein the first-stage anti-collision buffer module is connected with a vehicle head, the last second-stage anti-collision buffer module is connected with a first carriage, the size of each second-stage anti-collision buffer module is sequentially increased, and a plurality of layers of barb-shaped damping material blocks are arranged on the inner walls of the two sides of each second-stage anti-collision buffer module and used for absorbing collision energy. Compared with the prior art, the structure has the advantages of small occupied space, high impact energy absorption effect, low cost, high reliability and the like.

Description

technical field [0001] The invention relates to the field of traffic safety, in particular to a multi-stage active extension type train anti-collision buffer structure. Background technique [0002] The safety issue during the train operation has always been the focus of people's attention. Every time a train collides, it will cause serious life and property safety problems, and the social impact will also fluctuate accordingly. Because when mechanical equipment collides, basically all the impact energy will be absorbed by the deformation of the material of the equipment itself, so after each train collision, the front compartment of the train will be severely deformed and the safety of the people in the compartment will not be guaranteed. However, with the development and application of technology, the unmanned driving of trains puts forward higher requirements for train safety, so the research on train safety is a top priority now. In the existing technical research, two ...

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Problems solved by technology

[0006] At present, most of the train impact research is to protect the safety of passengers by changing the internal support structure in its inherent space and improving its structural materials, but this method of passive protection is basically close to the limit, because the overall structural size of the vehicle The space is restricted by national laws and regulations, so the internal space is fixed, and there is not much room for improving the passive safety structure. However, with the further increase of train speed, the requirements for operational safety are getting higher and higher, and passive safety is of course important. , but because the limitation of the internal space of the train can no longer meet the needs of today, how to use and expand the external space of the train is the trend of train operation protection

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