Integrated real-time measurement device for longitudinal crawling and close-fitting clearance of point rail

Abstract

The invention discloses an integrated real-time measurement device for longitudinal crawling and tight fit clearance of a switch rail, and belongs to the filed of rail traffic safety. The device comprises a displacement conversion transmission mechanism, a displacement sensor, an angle sensor and a data acquisition and processing unit, the device converts the orthogonal displacement of the crawling displacement and the tight fit clearance into linear displacement and angular displacement through displacement, the sensor and the data acquisition processing unit are used for collecting and processing the converted displacement signals, and switch rail state parameters are sent to a monitoring end through a ZigBee wireless module for monitoring and judging. According to the device, the interference problem of simultaneously measuring and installing the orthogonal displacement of the crawling displacement and the tight fit clearance of the switch rail is overcome, the simultaneous monitoring of the crawling and the dense adhesion is realized, the displacement measurement range is reduced, and the maintenance is convenient.

Description

technical field [0001] The invention belongs to the field of rail transit safety, and relates to an integrated real-time measuring device for longitudinal crawling and close-fitting gaps of point rails. Background technique [0002] In the operation of high-speed railways, turnouts are the key equipment that constitutes the railway track, and turnouts have the characteristics of large number, complex structure, limited train speed, low driving safety, and large maintenance and repair investment. They are a major weak link of the track. The point rail of the switch directly affects the running speed and safety of the train. Switch rail crawling and non-tight fit are the main problems of turnouts. The switch rail crawling amount refers to the longitudinal displacement of the switch point rail relative to the basic rail. To reduce the outage of turnouts without open signal due to excessive crawling and non-tightness, it plays an important role in the safe operation of turnouts...

AI Technical Summary

Problems solved by technology

[0004] To sum up, it can be seen that the existing measurement devices mainly measure the parameters of the crawling of the switch rail and the close-fitting gap alone, and cannot comprehensively analyze the variation, law, and trend of the data of the crawling of the switch rail and the close-fitting gap. The sticking displacement belongs to the orthogonal displacement. When the two displacements are measured at the same time, the measurement device has installation interference problems and is difficult to maintain.

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