Method and device for testing railway by laser and device thereof

Abstract

The invention relates to the design and manufacture of measuring instruments, in particular to a device used for detecting a rail by laser. The invention is characterized in that the device consists of a laser emitter (1), a locating receiving laser target (2), a measuring target (3) and a videography radio receiving device (6). The locating receiving laser target is provided with a camera head (4) and a videography electroplate (5). The invention has the advantages of simple and reasonable structure, low intensity, easy operation and high precision, etc.

Description

Technical field: [0001] The invention relates to the design and manufacture of measuring instruments, in particular to a device for detecting railway rails using laser light. Background technique: [0002] At present, the straightness of the railway track is detected mainly by human eyes observation and judgment, and then corrections are made by tools such as crowbars. Human error is inevitable due to the human eye interpretation, and there are many intermediate links in the detection, which are affected by human factors. Too large and less accurate. When measuring the string height, the traditional method is to draw the steel wire, and then use a ruler to measure the maximum string height. Due to manual alignment and human eye interpretation during measurement, and the downward deflection caused by the self-weight of the steel wire, this method must be considered. The correction value is more troublesome. In addition, there are many intermediate links between environmental...

AI Technical Summary

Problems solved by technology

[0002] At present, the straightness of the railway track is detected mainly by observation and judgment by human eyes, and then corrections are made by tools such as crowbars. Human error is inevitable due to the interpretation by human eyes, and there are many intermediate links in the detection, which are affected by human factors. too large, less accurate

When measuring the string height, the traditional method is to draw the steel wire, and then use a ruler to measure the maximum string height. Due to manual alignment and human eye interpretation during measurement, and the downward deflection caused by the self-weight of the steel wire, this method must be considered. The correction value is more troublesome. In addition, there are many environmental impacts and intermediate links in the measurement. It is greatly affected by human factors, and the measurement data is highly subjective and the accuracy is low.

As the speed of the train continues to increase, the requirements for the straightness and chord height of the rails have been greatly increased, and the requirements for detection accuracy have also been greatly increased. The original traditional detection methods can no longer meet the needs.

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