Steel rail profile grinding scheme design method based on personalized pattern library

Abstract

The invention discloses a steel rail profile grinding scheme design method based on a personalized pattern library, which comprises the following steps: firstly, calculating a steel rail profile equivalent deviation index before grinding according to a steel rail actual measurement profile, a target profile and a personalized pattern library; and the profile, the equivalent deviation index and the maximum negative deviation of the steel rail polished in each mode are further calculated according to the metal cutting theory. Then, according to the constraint conditions that the equivalent deviation index of the steel rail is gradually reduced and the maximum negative deviation value does not exceed an allowable value after each time of polishing, polishing modes meeting the requirements are preliminarily screened out, the optimal polishing mode is determined according to the principle that the equivalent deviation index is the lowest, and the number of each time of polishing mode is obtained; and finally, determining the profile and the equivalent deviation index of the steel rail after each time of polishing. The polishing mode of each time and the profile of the polished steel rail are calculated through the method; and finally determining a grinding scheme and predicting the profile of the steel rail after each time of grinding. According to the method, the steel rail profile grinding scheme can be conveniently and efficiently designed, and the ground steel rail profile can be predicted.

Description

technical field [0001] The invention belongs to the technical field of rail grinding, and relates to a design method of a rail profile grinding scheme based on a personalized pattern library. Background technique [0002] With the continuous development of economy and society, the scale of my country's railway network has been continuously expanded and improved, and railway operations are also developing rapidly in the direction of "high speed and large volume", which puts forward higher requirements for railway maintenance. As the core and important part of the track structure, the steel rail bears and transmits the complex and variable load imposed by the train, and provides guidance for the train. With the increase of the time on the road, the service state of the rail will gradually deteriorate, which will lead to poor rail profile state, and then induce the occurrence and deterioration of the disease. If the rail profile and disease cannot be treated effectively in a t...

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Problems solved by technology

The grinding plan is an important basis for guiding on-site grinding operations. If the design of the grinding plan is unreasonable, it will directly affect the quality of the grinding, and the grinding effect is difficult to guarantee

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