Laser long chord track smoothness detection device

Abstract

The invention discloses a laser long chord track smoothness detection device, and belongs to the technical field of track measuring instruments. The laser long chord track smoothness detection device comprises a cross beam, an auxiliary wheel and a walking wheel, wherein the auxiliary wheel and the walking wheel are located at the two ends of the cross beam; the auxiliary wheel is rotationally connected with an auxiliary longitudinal beam; the auxiliary longitudinal beam is movably inserted into one end of the cross beam; an adjusting wheel is in threaded connection with the auxiliary longitudinal beam; the bottom of the adjusting wheel is rotationally connected with the cross beam; a mounting longitudinal beam is fixed to the other end of the cross beam; the walking wheel is rotationally connected with the mounting longitudinal beam; a horizontal detection wheel is arranged at the bottom of the mounting longitudinal beam; a mobile platform driven by a stepping motor is arranged on the cross beam; and a digital receiving target and a detection target are arranged on the mobile platform. The laser long chord track smoothness detection device has the beneficial effects that the automatic collection of the laser center position and the analysis and optimization of the collected data are realized, the problems of human eye interpretation and insufficient measurement precision are solved; and the measurement of the elevation difference between the head point and the tail point in the track measurement is realized.

Description

technical field [0001] The invention relates to a track smoothness laser detection device, which belongs to the technical field of track measuring instruments. Background technique [0002] At present, the main technical solution for detecting the straightness of the railway track is: it consists of a laser transmitter, a positioning receiving target, a measuring target and an image wireless receiving device, and a camera device and an image transmitting device are installed in the positioning receiving light target. The above detection scheme has the following problems: [0003] 1. After the image is transmitted to the handheld terminal, it still depends on the interpretation of the human eye, which is greatly affected by human factors, the measurement data is highly subjective, and the accuracy is low; 2. The measurement target does not have a pulley device, and it is necessary to pick up the instrument during the measurement process. 3. Cannot measure the curve segment; ...

AI Technical Summary

Problems solved by technology

[0003] 1. After the image is transmitted to the handheld terminal, it still depends on the interpretation of the human eye, which is greatly affected by human factors, the measurement data is highly subjective, and the accuracy is low; 2. The measurement target does not have a pulley device, and it is necessary to pick up the instrument during the measurement process. Measuring points, reducing work efficiency and high work intensity; 3. Curve segment measurement cannot be performed; 4. There is no superelevation correction; 5. There is no measurement of the elevation difference between the first and last points

As the speed of the train continues to increase, the requirements for the straightness and chord height of the rail are greatly increased, and the original traditional detection method can no longer meet the requirements.

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