Wheel-rail force wireless monitoring device, system and method

Abstract

The invention relates to a wheel-rail force wireless monitoring device, system and method. The device comprises a data acquisition mechanism and a wireless monitoring mechanism matched with the data acquisition mechanism. The data acquisition mechanism comprises a line concentration box matched with the steel rail, an integrated circuit board matched with the line concentration box, a data acquisition card arranged on the integrated circuit board and a biaxial strain gauge, a strain gauge positioning hole is formed in the integrated circuit board, and the biaxial strain gauge is arranged in the strain gauge positioning hole. The monitoring method comprises the following steps: respectively installing the plurality of data acquisition mechanisms at different monitoring positions of the steel rail so as to acquire wheel-rail force data at each position of the steel rail, and realizing wireless monitoring of the wheel-rail force through the wireless monitoring mechanism. Compared with the prior art, the accuracy of the strain gauge pasting position is improved, the measurement precision is improved, remote monitoring is achieved, the efficiency is high, the maintenance cost is low, and the influence of a leading-out line on the train running safety is avoided.

Description

technical field [0001] The invention belongs to the technical field of wheel-rail force testing, and relates to a wheel-rail force wireless monitoring device, system and method. Background technique [0002] In the field of wheel-rail force testing, the determination of wheel-rail force is the basis for studying the vehicle-rail coupling model, and it is also the key to ensure the safe operation of the vehicle. The interaction between the wheel and the track also directly affects the driving safety, wheel-rail wear and so on. Therefore, the research on the wheel-rail force test device is of great engineering significance. [0003] At present, there has been some research on the ground test method of wheel-rail force during vehicle inspection in China. With the continuous improvement of test methods, most of the current ground test methods of wheel-rail force are to grind and paste the strain gauge on the track on site and pass the test method. In the method of wire group b...

AI Technical Summary

Problems solved by technology

However, there are still deficiencies in this test method. First, there is a problem of inaccurate positioning when pasting the strain gauge, which makes the measured strain value deviate and cannot achieve the expected effect; secondly, the lines drawn by the strain gauge are many and complicated. affect the safety of trains

In addition, the wheel-rail force in the vehicle-rail-road coupling model can only be obtained through on-site measurement, and real-time data cannot be obtained by means of remote monitoring, so it cannot meet the requirements of wagon detection

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