A Ground Track Changing Structure for Gauge Changing Bogies

Abstract

The invention relates to the field of rail vehicle gauge change, and discloses a ground track change structure for a track change bogie. The ground track change structure includes a pair of support rails arranged in parallel and a A pair of first guide rails, a pair of variable gauge guide rails and a pair of second guide rails arranged in sequence; an unlocking section is provided between the first guide rails and the variable gauge guide rails, and the variable gauge guide rails and the second There is a locking section between the two guide rails; the inner / outer side of the unlocking section and the inner / outer side of the locking section are respectively provided with a push positioning device, which is used to change the track through the unlocking section and the locking section The wheel pair exerts lateral thrust. The present invention applies a lateral thrust to the variable-gauge wheel set by using the pushing and positioning device, so that both sides of the variable-gauge wheel set have a slight displacement relative to the running guide rails, so as to readjust the matched parts on the variable-gauge wheel set. The positional relationship of the parts is convenient to improve the positioning accuracy, so as to ensure the smooth unlocking and locking of the variable gauge wheel set.

Description

technical field [0001] The invention relates to the technical field of track gauge change of rail vehicles, in particular to a ground track change structure used for a track gauge bogie. Background technique [0002] In order to meet the transportation requirements between tracks with different gauges in neighboring countries, the bogies with different wheelset inner gauges are often replaced at the junction, but this solution is costly and time-consuming. Spain and Japan have successively invented wheelsets with variable gauge, which can run continuously between tracks with different gauges. [0003] At present, the lateral positioning of the wheel is directly realized by the guide rails, but due to the existence of the guide rail gap, the positioning is prone to inaccurate situations, resulting in the locking pin being subjected to a large lateral pressure exerted by the axle box body and the outer sleeve, which in turn leads to It is subject to a large vertical friction ...

AI Technical Summary

Problems solved by technology

[0003] At present, the lateral positioning of the wheel is directly realized by the guide rail, but due to the existence of guide rail gaps, the positioning is prone to inaccurate situations, resulting in a large lateral pressure exerted by the axle box and the outer sleeve on the locking pin, resulting in When it moves, it is subject to a large vertical friction force, which makes the unlocking and locking actions of the locking pin prone to jamming, and cannot be successfully unlocked or locked. If the gauge is changed forcibly at this time, the gauge wheel set will be damaged. , causing heavy losses

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