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

A technology of geometric parameters and train wheels, applied in the direction of rim measurement/measurement, measurement device, optical device, etc., can solve the problems of circle diameter deviation and distortion at the rim vertex, and achieve improved measurement accuracy, low cost, and measurement accuracy. high effect

Active Publication Date: 2020-10-09
马鞍山市雷狮轨道交通装备有限公司
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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

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Embodiment 1

[0047] Such as figure 1 As shown, a kind of train wheel geometric parameter online dynamic measuring device of the present embodiment comprises start switch 1, laser displacement sensor I 2, laser displacement sensor II 3, laser displacement sensor III 4 arranged on the inner side of the track along the direction of train travel And stop switch 6, wherein the detection beams of laser displacement sensor I 2 and laser displacement sensor III 4 are all perpendicular to the top surface of the track and vertical to the inner rim surface of the wheel, and the detection beams of laser displacement sensor II 3 are vertical to the top surface of the track and upward parallel to the inner rim of the wheel. In this embodiment, the three laser displacement sensors all adopt two-dimensional laser displacement sensors, and are installed on the same support 5 , and their detection frequencies are the same. The start switch 1, laser displacement sensor I 2, laser displacement sensor II 3, l...

Embodiment 2

[0069] 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, 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 70 mm.

Embodiment 3

[0071] The on-line dynamic measuring device and measuring method of the train wheel geometric parameters of the present embodiment are the same as those of the embodiment 1, the difference mainly lies in: the diameter D corresponding to the base point of measuring the wheel rim thickness in the present embodimenth =D T +20.

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Abstract

The invention discloses a train wheel geometric parameter on-line dynamic measuring device and measuring method, belonging to the technical field of train wheel detection. The train wheel geometric parameter on-line dynamic measuring device comprises a starting switch, a first laser displacement sensor, a second laser displacement sensor, a third laser displacement sensor and a stop switch arranged on the inner side of a track in sequence in the train traveling direction, wherein detection beams of the first laser displacement sensor and the third laser displacement sensor are perpendicular tothe top face of the track to be upward and perpendicular to the inner rim face of a wheel, and the detection beam of the second laser displacement sensor is perpendicular to the top face of the trackto be upward and parallel to the inner rim face of the wheel. By adopting the train wheel geometric parameter on-line dynamic measuring device and measuring method, the geometric parameters of the train wheel can be dynamically measured on-line, and the measurement accuracy and the measurement efficiency are 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): B61K9/12G01B11/24
CPCB61K9/12G01B11/24
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
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