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A device and method for online measurement of rail vehicle wheel cake parameters

A technology for measuring devices and rail vehicles, which is applied in the direction of measuring devices, railway vehicle testing, and electric devices, etc. It can solve the problems of difficult to meet the measurement requirements, manual readings, and errors in measurement results, and achieve high-precision diameter measurement functions. Convenience and high measurement accuracy

Active Publication Date: 2021-04-16
北京镭格之光测量技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But the detection device of existing wheel pair mainly is the fourth checker and wheel pair ruler, and this detection tool needs manual reading, is easy to make mistakes, has influenced the reliability of detection; The accuracy is difficult to meet the measurement requirements, resulting in large errors in measurement results

Method used

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  • A device and method for online measurement of rail vehicle wheel cake parameters
  • A device and method for online measurement of rail vehicle wheel cake parameters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] according to Figure 1-2 The shown a kind of on-line measurement device of rail vehicle wheel cake parameters includes a 2D laser displacement sensor 1 installed on the outside of the track, an eddy current sensor 2 installed on the inside of the track and a magnetic steel 3 installed on the inside of the track;

[0053] The 2D laser displacement sensor 1 and the eddy current sensor 2 are used to measure the wheel cake tread curve, the diameter of the rolling circle, and the beating of the rolling circle;

[0054] The eddy current sensor 2 is used to measure the inner distance;

[0055] The magnet 3 is used to obtain a starting signal, so that the wheel cake measurement system enters a standby state. If the magnet 3 does not obtain a signal beyond the set time, the system is in standby.

[0056] Further, in the above scheme, the track includes a T-shaped rail and a grooved rail, the eddy current sensor 2 is installed facing and perpendicular to the inner end face of th...

Embodiment 2

[0060] A method for online measurement of rail vehicle wheel cake parameters, the specific measurement method is as follows:

[0061] Step 1: Installation of online measuring device

[0062] Install the 2D laser displacement sensor 1 on the outside of the track through the bracket, install the eddy current sensor 2 on the inside of the track and set it facing and perpendicular to the inner end surface of the wheel cake, install the eddy current sensor 2 on the inside of the track and set it vertically upward to the ground, and in addition , installing the magnetic steel 3 on the inner side of the track;

[0063] Step 2: Establish a coordinate system

[0064] Coordinate system 1: In plane A, it is the original coordinate system of 2D laser displacement sensor 1, the intersection line between the emission window plane of 2D laser displacement sensor 1 and plane A is the x-axis, and the laser emission direction of 2D laser displacement sensor 1 is y axis;

[0065] Coordinate s...

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Abstract

The invention discloses an on-line measurement device and method for rail vehicle wheel cake parameters, comprising a 2D laser displacement sensor installed on the outside of the track, an eddy current sensor installed on the inside of the track, and a magnetic steel installed on the inside of the track; the 2D laser displacement sensor The sensor and the eddy current sensor are used to measure the wheel cake tread curve, rolling circle diameter, and rolling circle runout; the eddy current sensor is used to measure the inner distance; the magnetic steel is used to obtain the start signal, so that the wheel cake measuring system enters a standby state , the magnetic steel does not get a signal beyond the set time, the system is on standby, and automatic online measurement is realized. The eddy current sensor measures the height of the lowest point of the wheel rim, and the measurement accuracy is high. By curve fitting each set of scattered point data at different times, the calculation Out of the round cake diameter.

Description

technical field [0001] The invention relates to the technical field of online measurement of rail vehicle wheel cake parameters, in particular to an online measurement device and method for rail vehicle wheel cake parameters. Background technique [0002] As an extremely important part of the running part of the vehicle, the wheel set not only bears the entire weight of the vehicle body, but also is responsible for transmitting the force between the wheel set and the rail. Wheel sets are of great importance to the safe operation of trains. Accurately measure parameters such as wheel rim thickness, rim height, vertical wear, tread wear, wheel diameter, etc., to ensure that the train wheel tread shape parameters and coaxial left and right wheel diameter differences conform to Relevant regulations and standards are very important to ensure the safe operation of trains and the smooth completion of transportation plans. [0003] But the detection device of existing wheel pair ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/00G01B21/10G01B21/02G01B21/08G01B21/20G01B7/14G01M17/10
CPCG01B7/14G01B21/00G01B21/02G01B21/08G01B21/10G01B21/20G01M17/10
Inventor 赵若群
Owner 北京镭格之光测量技术有限公司
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