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Wheel-rail force wireless monitoring device, system and method

A wireless monitoring device and monitoring system technology, applied in measuring devices, signal transmission systems, force/torque/power measuring instruments, etc., can solve the impact of train driving safety, inaccurate positioning of pasted strain gauges, and inability to obtain real-time data, etc. problems, to achieve the effect of saving manpower and material resources, improving measurement accuracy, and realizing wireless transmission

Pending Publication Date: 2022-06-24
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Wheel-rail force wireless monitoring device, system and method
  • Wheel-rail force wireless monitoring device, system and method
  • Wheel-rail force wireless monitoring device, system and method

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Experimental program
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Effect test

Embodiment 1

[0034] like figure 1 , figure 2 The shown wireless monitoring device for wheel-rail force includes a data acquisition mechanism and a wireless monitoring mechanism adapted to the data acquisition mechanism. The adapted integrated circuit board 3, the data acquisition card 5 and the biaxial strain gauge 2 arranged on the integrated circuit board 3, the integrated circuit board 3 is provided with a strain gauge positioning hole, and the biaxial strain gauge 2 is arranged on the strain gauge positioning hole. in the hole.

[0035] like image 3 As shown, the junction box 4 is a combined junction box, and a buckle 9 is provided on the combined junction box. The junction box 4 is adapted to the lower half of the steel rail 1, and the material of the junction box 4 is hard plastic.

[0036] like Figure 4 As shown, there are four integrated circuit boards 3 in total, two of which are matched with the inner side of the steel rail 1 , and the other two IC boards 3 are matched wi...

Embodiment 2

[0040] A wheel-rail force wireless monitoring system, based on the wheel-rail force wireless monitoring device in Embodiment 1, the system includes a plurality of data collection mechanisms for collecting wheel-rail force data at different positions of the rail 1, and a plurality of data collection mechanisms. A wireless monitoring mechanism that is compatible with the mechanism.

Embodiment 3

[0042]A method for wireless monitoring of wheel-rail force, based on the wheel-rail force wireless monitoring system in Embodiment 2, such as Figure 7 As shown, the method is as follows: install multiple data acquisition mechanisms at different monitoring positions of the rail 1 to collect the wheel-rail force data at each position of the rail 1, and realize the wireless monitoring of the wheel-rail force through the wireless monitoring mechanism.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00G08C17/02
CPCG01L5/00G08C17/02
Inventor 陕耀王冠凯林炜帆肖蔚雄马文杰
Owner TONGJI UNIV
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