Bogie and track vehicle provided with same

Abstract

The invention provides a bogie and a track vehicle provided with the same. The bogie comprises a load transmission mechanism, a frame body and an elastic positioning mechanism, wherein the frame body is provided with an accommodating gap part for accommodating the load transmission structure; the elastic positioning mechanism is arranged between the load transmission structure and a side wall of the accommodating gap part along a longitudinal direction; the elastic positioning structure comprises a shell, and a first partition part and a second partition part which are arranged in the inner cavity of the shell in sequence along the longitudinal direction; the inner cavity is partitioned into a first chamber, a second chamber and a third chamber by the first partition part and the second partition part; the first chamber and the second chamber are fully filled with damping fluid; the first partition part is provided with a damping hole for communicating the first chamber and the second chamber; the second partitioning part is elastic; an annular deformed part is formed on the shell corresponding to at least a part of the circumferential side wall of the first chamber. According to the technical scheme, the problems of complicated bogie structure and heavy deadweight caused by giving consideration to linear running performance and curve passing performance in the prior art can be solved effectively.

Description

technical field [0001] The invention relates to the technical field of bogies, in particular, to a bogie and a rail vehicle with the bogie. Background technique [0002] Straight line running performance and curve passing performance have always been a contradiction in the running process of railway vehicles. Specifically, when running in a straight line, a larger wheel set positioning stiffness is generally required to suppress the snake vibration of the wheel set; while when a curve passes, a smaller wheel set positioning stiffness is required to make full use of the creep force for guidance. Reduce wheel and rail wear and reduce maintenance costs. [0003] At present, the bogies used by domestic and foreign railway vehicles are mainly three-piece bogies and frame bogies. Among them, among the three major bogies, the ones with better long-term running performance mainly include cross brace, pendulum and radial bogies. Among the bogies of the above types, the frame type,...

AI Technical Summary

Problems solved by technology

[0011] The main purpose of the present invention is to provide a bogie and a rail vehicle with it, so as to solve the problems in the prior art that the bogie has a complex structure and a heavy weight while taking into account both straight-line running performance and curve passing performance

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