A deflectable rail grinding method

Abstract

The invention discloses a deflectable steel rail polishing method. The deflectable steel rail polishing method comprises the following steps: (1) fixing a steel rail to a work table under a sanding belt polishing mechanism in a clamping mode; (2) setting a detection parameter, transmitting the detection parameter to a control center, and starting the sanding belt polishing mechanism and the work table so that the work table can move back and forth in the steel rail length direction while a sanding belt is working; (3) conducting analytical calculation to a deflection angle in the steel rail length direction through the control center according to the detection parameter during the polishing process, and controlling a vertical pillar to drive a contact wheel of the sanding belt polishing mechanism to rotate according to a corresponding angle so that the deflection angle of the sanding belt is consistent with the deflection angle of the steel rail in the length direction. The deflectable steel rail polishing method uses a way of adjusting the polishing angle in real time to overcome drawbacks of the prior art that the polishing workload is heavy and the working time is long, the sanding belt polishing mechanism can ensure that the sanding belt and the steel rail adopt flexible polishing, interface edge angle does not exist, and the polishing accuracy of the steel rail is ensured; and the deflectable steel rail polishing method is widely applied to the ancillary use of subway and railway steel rail maintenance.

Description

technical field [0001] The invention relates to the technical field of grinding, in particular to a deflectable rail grinding method. Background technique [0002] During the "13th Five-Year Plan" period, my country's railway fixed asset investment will reach 3.5 trillion yuan, of which capital construction investment will be about 3 trillion yuan, and 30,000 kilometers of new lines will be built; by 2020, the national railway operating mileage will reach 150,000 kilometers , of which the high-speed railway is 30,000 kilometers; and the trains generally run at a speed of more than 120km / h, and the maximum speed even exceeds 350km / h. However, under high-speed operation, the rails are subjected to repeated rolling for a long time, which inevitably causes various damages. These damages not only increase the cost of railway operation, but also endanger the safety of railway operation. [0003] After a long period of rolling, rails will have different degrees of damage types such ...

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Problems solved by technology

[0005] In view of the above situation, the object of the present invention is to provide a deflectable rail grinding method, which overcomes the defects of large grinding workload and long construction period in the prior art by adopting a method that can adjust the grinding angle in real time, and adopts the abrasive belt grinding mechanism to ensure The abrasive belt and the rail adopt flexible grinding, there is no water chestnut at the interface, which can ensure the grinding accuracy of the rail, the market prospect is broad, and it is easy to promote and use

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