On-line top wheel device

Abstract

The invention discloses an online rotating wheel jacking device, which comprises a swing arm group, rotating wheels, and a first expansion device, wherein the swing arm group comprises two swing arms hinged to a frame; the rotating wheels are arranged on the tops of the swing arms, and are connected with a servo motor; two ends of the first expansion device are hinged with bottoms of the two swing arms. The first expansion device drives the swing arms to rotate, and the rotating wheels on the swing arms jack an online wheel pair off a rail surface. The servo motor drives the rotating wheels to rotate, and the rotating wheels drive the online wheel pair to rotate through contact friction force, so that the wheel pair to be detected is rotated at the required speed. The online rotating wheel jacking device is not interfered with objects at the bottoms of various motor train units and rolling stocks, and can adapt to any contour dimensions of the various motor train units and rolling stocks in an application limit. The online rotating wheel jacking device has a concise structure, high bearing capacity, high stability, safety and reliability, and effectively solves the problem of an online wheel pair jacking and rotating integrated design.

Description

technical field [0001] The invention relates to the technical field of wheel set rotation inspection of EMUs and locomotives, and more particularly to an online wheel set rotation device. Background technique [0002] In recent years, with the rapid development of my country's national economy, the running speed of EMUs and rolling stock has increased year by year. The speed-up operation of the train puts forward higher requirements for the quality of the train. As an important part of the train, the running state and quality of the wheelset are directly related to the driving safety. Therefore, it is necessary to regularly inspect the online wheelset, especially for tread defects and rim spoke defects, which need to be fully inspected online. [0003] The traditional wheel set detection method mainly relies on manual inspection, and the detection results are highly subjective, low in accuracy, and prone to missed inspections. Especially in the case of not dropping the wh...

AI Technical Summary

Problems solved by technology

[0003] The traditional wheel set detection method mainly relies on manual inspection, the detection results are highly subjective, the accuracy is low, and it is easy to miss detection

Especially in the case of non-falling wheels, since most of the wheels are blocked by the underbody parts, if a comprehensive inspection of the wheelset is required, a second towing is required, or the wheelset is manually lifted from the two end faces of the wheel axle, which is inefficient. The positioning is not accurate enough, nor can it provide continuous and stable wheel set rotation, which hinders the development of wheel set inspection to the direction of automation

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