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A device and method for on-line dynamic measurement of train wheel geometric parameters

A technology for train wheels and geometric parameters, applied in the direction of wheel rim measurement/measurement, measuring devices, optical devices, etc., which can solve the problems of wheel rim apex circle diameter deviation, distortion, etc.

Active Publication Date: 2020-11-27
马鞍山市雷狮轨道交通装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this method regards the speed as known, in the process of restoring the value of the lowest point of the wheel rim at different times to the coordinate value at the same time, due to the deviation of the speed, the restored coordinate value is distorted, which eventually leads to The diameter of the rim apex circle has a large deviation

Method used

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  • A device and method for on-line dynamic measurement of train wheel geometric parameters
  • A device and method for on-line dynamic measurement of train wheel geometric parameters
  • A device and method for on-line dynamic measurement of train wheel geometric parameters

Examples

Experimental program
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Effect test

Embodiment 1

[0083] Such as figure 1 As shown, a kind of train wheel geometric parameter online dynamic measuring device of the present embodiment comprises the velocity sensor 7, start switch 1, laser displacement sensor I 2, laser displacement sensor II 3, laser displacement sensor II that are arranged on the inner side of the track along the direction of train travel. Displacement sensor III 4 and stop switch 6, wherein the detection beams of laser displacement sensor I 2 and laser displacement sensor III 4 are both perpendicular to the inner rim surface of the wheel, and the detection beam of laser displacement sensor I 2 is vertical to the top surface of the track upwards, the laser displacement The detection beam of sensor III 4 has an angle α with the top surface of the track, and the detection beam of laser displacement sensor II 3 is perpendicular to the top surface of the track and parallel to the inner rim surface of the wheel. In this embodiment, the three laser displacement se...

Embodiment 2

[0108] Such as Figure 2-Figure 4 As shown, a kind of train wheel geometric parameter online dynamic measuring device of the present embodiment, its structure is basically the same as embodiment 1, and its difference mainly is: in the present embodiment, the laser displacement sensor III4 is installed on the outside of the track by the support II 8, and its detection The angle between the light beam and the top surface parallel to the track is α, and the angle between the beam and the inner rim surface of the wheel is β.

[0109] combine Figure 2-Figure 5 , the online dynamic measurement device of the present embodiment is used to measure the geometric parameters of the train wheels. When the train wheels pass the start switch 1, the start switch 1 is triggered. At this time, the three laser displacement sensors simultaneously detect and collect. When the stop switch 6 is activated When triggered, the three laser displacement sensors stop detecting and collecting at the same...

Embodiment 3

[0137] The on-line dynamic measuring device and measuring method of the geometric parameters of the train wheel in this embodiment are the same as those in Embodiment 1 or 2, the main difference being that the distance d between the wheel diameter measurement base point and the inner rim surface of the wheel in this embodiment is 70mm.

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Abstract

The invention discloses an on-line dynamic measurement device and method for geometric parameters of a train wheel and belongs to the technical field of detection of train wheels. The on-line dynamicmeasurement device for the geometric parameters of the train wheel comprises a starting switch, a laser displacement sensor I, a laser displacement sensor II and a stop switch which are sequentially arranged on the inner side of a track in the traveling direction of a train and further comprises a laser displacement sensor III arranged on the inner side or the outer side of the track; a detectionlight beam of the laser displacement sensor I is upwards perpendicular to the top surface of the track and is perpendicular to the inner rim surface of the wheel; a detection light beam of the laser displacement sensor II is upwards perpendicular to the top surface of the track and is parallel with the inner rim surface of the wheel; and an inclined included angle is formed between a detection light beam of the laser displacement sensor III and the top surface of the track. With adoption of the technical scheme, on-line dynamic measurement can be performed on the geometric parameters of the train wheel, and the measurement accuracy and the measurement efficiency are relatively high.

Description

technical field [0001] The invention belongs to the technical field of detection of geometric parameters of train wheels, and more specifically relates to an online dynamic measurement device and method for geometric parameters of train wheels. Background technique [0002] The train wheel is one of the most important running parts of the rail transit train, which carries all the dynamic and static loads of the train. However, during the operation of the train, due to the long-term friction between the wheel and the track, it will cause different degrees of wear to the wheel, such as diameter wear, rim wear and so on. Diameter wear will cause the diameter difference of the same vehicle or the same frame or the same pair of wheels to exceed the limit, and the height of the rim will increase. The eccentric wear of the rim will cause the thickness of the rim to decrease and the comprehensive value of the rim to decrease. Driving safety poses a great threat. Therefore, the dia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61K9/12G01B11/10G01B11/24
CPCB61K9/12G01B11/10G01B11/24
Inventor 贺子铭徐见马开富
Owner 马鞍山市雷狮轨道交通装备有限公司