High speed train set axle box device used for accurate-wide track gauge transformation

Abstract

Disclosed is a high speed train set axle box device used for accurate-wide track gauge transformation. The high speed train set axle box device includes an axle box rotating arm beam and a rotating arm hoop and is characterized in that a cavity formed by the axle box rotating arm beam and the rotating arm hoop is internally provided with an axle box body in a gap fit mode; the sections of the axlebox body, the axle box rotating arm beam and the rotating arm hoop are corresponding polygonal sections, and the side surfaces of the axle box body, the axle box rotating arm beam and the rotating arm hoop are provided with mounting interfaces of a locking mechanism; and the bottom of the rotating arm hoop is used as a mounting seat of a bearing mechanism, and the axle box rotating arm beam and the rotating arm hoop are provided with mounting interfaces composed of axle ends. According to the high speed train set axle box device, through three body axle boxes of the axle box body, the axle box rotating arm beam and the rotating arm hoop all with the polygonal sections, the axle box body can slide in the inner cavity formed by the axle box rotating arm beam and the rotating arm hoop in theaxial direction, circumferential positioning is achieved, because the side surfaces of the three-body axle boxes are provided with the mounting interfaces of the locking mechanism, the bottom of therotating arm hoop is provided with a mounting interface of the bearing mechanism, the axle box rotating arm beam and the rotating arm hoop are provided with the mounting interfaces composed of the axle ends, a track transformation process is achieved smoothly, increase of human and material cost due to replacing of bogies during cross-border intermodal transportation is reduced, and the operationefficiency is improved.

Description

technical field [0001] The invention relates to a rail vehicle axle box device, in particular to an axle box device applied to a variable-gauge power bogie of a high-speed EMU converted from quasi-wide gauge. Background technique [0002] In the traditional bogie wheel-to-axle box device, the wheels are installed on the axle through interference fit, and the two are relatively fixed, so the inner distance of the wheel set remains unchanged, which can only meet the operation requirements of one gauge. Countries around the world adopt different railway gauge systems. China's railways are standard gauge with a gauge of 1435mm, while the railways in Russia and most countries in Eastern Europe and Central Asia are wide gauge with a gauge of 1520mm. Therefore, in the process of cross-border intermodal transport, when domestic passenger and freight railway vehicles run from standard gauge lines to wide gauge lines, they cannot pass directly. There are many problems such as increas...

AI Technical Summary

Problems solved by technology

Therefore, in the process of cross-border intermodal transport, domestic passenger and freight railway vehicles cannot pass directly when they run from standard gauge lines to wide gauge lines. Increased material costs, long time-consuming, low operational efficiency and many other problems

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