Method for repairing steel rail with laser

A technology of laser repair and rail, which is applied in the direction of track, track laying, track maintenance, etc., can solve the problems of difficult replacement, achieve the effect of simple repair equipment, simple repair method, and reduce post-processing

Active Publication Date: 2011-01-19
吉光半导体科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the above weight and rail length, it can be seen that, regardless of the impact on traffic order, it is very difficult to replace a rail on a main line in terms of transportation alone.

Method used

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  • Method for repairing steel rail with laser
  • Method for repairing steel rail with laser
  • Method for repairing steel rail with laser

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the drawings.

[0022] The method of the present invention for repairing steel rails by laser is completed by the following steps:

[0023] Step 1. Set the height direction of the rail as the Y axis, the width direction of the rail as the X axis, and the length direction of the rail as the Z axis;

[0024] Step 2: Scan the track with the CCD camera, and collect the values ​​in the X and Y directions;

[0025] Step 3: Compare the Y-direction value collected by the CCD camera in Step 2 with the height of the standard rail surface in the computer. If the difference is ≥1mm, then the point (X, Y) is judged to be the damage to be repaired. Perform step 4, if the difference is less than 1mm, then it is determined that the point (X, Y) does not need to be repaired, and return to step 2;

[0026] Step 4. Record the height of the standard rail surface as Y=0, the height difference in the Y direction is th...

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Abstract

The invention provides a method for repairing a steel rail with laser, belonging to the semiconductor laser application field. The method is characterized in that the old steel rail with surface defects is rapidly and reliably repaired for reuse without impact on traffic order on the premise of not disassembling the steel rail. The method mainly comprises the following steps: pre-cleaning the steel rail, acquiring and analyzing as well as sorting steel rail information, repairing the steel rail by filling iron powder, performing metallurgical fusion with the laser, and polishing the repair of the rail. The device employed in the method has small volume and light weight, thus being capable of being integrated on a rail running locomotive or a car for daily maintenance or rescue and repair of the rail.

Description

Technical field [0001] The invention relates to the application of laser technology in modern rail transit systems. The rails include rails in railroads, subways, light rails and other transportation systems. Background technique [0002] With the progress of human society, the population movement and the increasing volume of cargo transportation have caused increasing pressure on transportation. Rail transit has become the main force in transportation because of its large shipments and fast delivery speed. Rail transit mainly includes rail vehicles such as railways, subways, and light rails. It has a great development in China and the world. [0003] At present, there are about 1.37 million kilometers of railways in the world, more than 60% of which are standard gauges (Wiki): 86,000 kilometers in China (data at the end of 2009 by the Ministry of Railways), 226,000 kilometers in the United States (CIA 2007), 27,000 kilometers in Japan (Japanese railways), and India 63,000 kilome...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B31/18
Inventor 张俊王立军王琪郝明明汪丽杰
Owner 吉光半导体科技有限公司
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