Locking mechanism for gauge-variable bogie of high-speed electric multiple unit

Abstract

A locking mechanism for a gauge-variable bogie of a high-speed electric multiple unit (EMU) comprises a locking rod, a working arm, a joint, a driving arm, a connecting rod, a spring, a lower stop block and an upper stop block, wherein the middle of the working arm is connected to the driving arm by the connecting rod; one end of the working arm is connected to a rotating arm hoop and the other end of the working arm is fixedly connected to the locking rod; the spring is mounted around the locking rod; and the upper end of the locking rod is inserted into an axle box body, an axle box rotatingarm beam and a locking keyway of the rotating arm hoop to realize locking. The locking mechanism for the gauge-variable bogie of the high-speed EMU locks a sliding device which is fixedly connected to the axle box body through the locking rod, so as to realize the function of unlocking and locking wheels by the gauge-variable bogie during the process of adjusting the inner distance of wheelsets.After unlocking the wheels, the locking mechanism ensures that the inner distance of the wheelsets can be freely and flexibly adjusted, and after locking the wheels, the locking mechanism ensures thata train can safely run on fixed-gauge tracks.

Description

technical field [0001] The invention relates to a locking mechanism, in particular to a locking mechanism applied to a track-changing bogie of a rail vehicle, which is used for locking the sliding mechanism before and after track change and the axle box device of the bogie. Background technique [0002] Since countries in the world adopt different railway gauge systems, for example, China's railways are standard gauges with a gauge of 1435mm, and the railways of Russia and most countries in Eastern Europe and Central Asia are wide gauges with a gauge of 1520mm. There are also some countries whose railway gauge standard is narrow gauge 1000mm. In the process of cross-border intermodal transport, when domestic passenger and freight railway vehicles run from standard gauge lines to wide and narrow gauge lines, they cannot pass directly, and need to stop to replace bogies that meet the requirements of different gauges. [0003] The variable gauge bogie is an unconventional bogi...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the inner distance of the traditional bogie wheel set is fixed and the function of variable gauge conversion cannot be realized, reduce the increase in manpower and material costs caused by bogie replacement during cross-border transport, and improve operational efficiency, the present invention provides a locking device that realizes The variable gauge bogie has the function of unlocking and locking the wheels during the adjustment of the inner distance of the wheel set. After unlocking, the inner distance of the wheel set can be adjusted freely and flexibly. After locking, the train can run safely on the fixed gauge track.

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