A device for automatically and accurately repairing the wavy wear of subway curved rails

Abstract

The invention relates to equipment for automatically and accurately repairing wavy abrasions to a subway corner rail. The equipment comprises a trolley, a driving assembly and a control assembly, wherein the trolley travels on the subway corner rail; a positioning assembly for fixing the trolley on the rail, a laser distance measuring sensor (10) for detecting the wavy abrasions to the subway corner rail and a grinding assembly (8) for repairing the wavy abrasions to the subway corner rail are arranged on the trolley; the driving assembly drives the grinding assembly (8) to move in an X-axis direction, a Y-axis direction and a Z-axis direction respectively. Compared with the prior art, the equipment takes a storage battery as power, can accurately repair the wavy abrasions to the subway corner rail for a designated position and can perform reshaping simply and repeatedly; the grinding assembly can move in the rail direction and in the radial direction of the rail and can rise and fall accurately, and an included angle formed by a grinding wheel and the rail can be adjusted. The equipment has the advantages of simplicity in operation, high working efficiency, convenience in mounting and transportation, low operation cost, high grinding accuracy and the like.

Description

technical field [0001] The invention relates to the technical field of rail grinding, in particular to a technology for repairing the wavy wear of subway rail curves with a small radius of curvature. Background technique [0002] The emergence of corrugation makes rolling stock and track vibrate violently, which is very harmful to the track. The service life of corrugated rails on most lines is shortened by 50%-75%, or even more. Corrugation has caused serious damage to the roadbed, such as ballast slag pulverization, ballast bed hardening, fastener loosening, etc., which has increased the damage rate of various components of the line, and greatly increased the maintenance workload and costs of the public works department. At the same time, the noise and vibration generated by corrugated wheel rails will cause discomfort to passengers, affecting the riding environment and the lives of residents along the line. In addition, corrugation also increases the running resistance ...

AI Technical Summary

Problems solved by technology

However, the rail grinding axle is heavy, the cost is high, and the operation is complicated. It is difficult to solve the rail corrugation at the designated position in time and prevent it from happening

For the grinding of curved rails, due to the particularity of the grinding process of curved rails, the existing small or light grinding equipment is difficult to meet the needs of curved rail grinding or the grinding effect is poor, and there is no curved grinding device with a high degree of automation. Formed equipment, the existing urban subway rails are severely worn, and there is a large demand for grinding and maintenance. On the other hand, if the wear and tear of corrugated grinding can be controlled in a small range in time, the service life of the rail can be effectively increased and the reduction operation hazards, which requires targeted early active grinding and repair of the corrugated parts of the rail. This active repair requires an effective grinding device

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