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On-line dynamic measurement device and measurement method for geometrical parameters of train wheels

A technology of dynamic measurement and geometric parameters, applied in the direction of rim measurement/measurement, measuring device, mechanical measuring device, etc., can solve the problems of low detection accuracy and detection efficiency, and achieve the effect of simple structure and installation, high precision and easy realization

Active Publication Date: 2020-12-25
马鞍山市雷狮轨道交通装备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of relatively low detection accuracy and detection efficiency existing in the detection of geometric parameters of train wheels, and provide an online dynamic measurement device and method for geometric parameters of train wheels

Method used

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  • On-line dynamic measurement device and measurement method for geometrical parameters of train wheels
  • On-line dynamic measurement device and measurement method for geometrical parameters of train wheels
  • On-line dynamic measurement device and measurement method for geometrical parameters of train wheels

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Experimental program
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Effect test

Embodiment 1

[0053] combine Figure 1-Figure 3 As shown, the device for online dynamic measurement of a kind of train wheel geometric parameter of the present embodiment comprises a speed sensor 2, a wheel alignment sensor 3, a laser displacement sensor 11-1 and a stop switch which are successively arranged on the inside of the track 6 along the direction of train travel 4 and the laser displacement sensor II 1-2 arranged on the outside of the track 6, the speed sensor 2, the wheel alignment sensor 3, the laser displacement sensor I 1-1, the stop switch 4 and the laser displacement sensor II 1-2 are all connected to the control system, And the laser displacement sensor I 1-1 and the laser displacement sensor II 1-2 are both connected to the data processing system. The above-mentioned wheel alignment sensor 3 and laser displacement sensor I 1-1 are installed on the inner side of the track through the laser displacement sensor bracket I 5-1, and its detection beam is perpendicular to the inn...

Embodiment 2

[0079] 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

[0081] 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 embodiment h =D T +20.

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Abstract

The invention discloses an online dynamic measuring device and method for train wheel geometric parameters and belongs to the technical field of train wheel parameter detection. The measuring device comprises a speed measuring sensor, a wheel positioning sensor, a laser displacement sensor I and a stop switch which are sequentially disposed inside a track in the traveling direction of a train, anda laser displacement sensor II arranged outside the track, when the wheel positioning sensor is triggered by a wheel, the two laser displacement sensors realize collection simultaneously, when the stop switch is triggered by the wheel, the two laser displacement sensors stop collection simultaneously, collected data are transmitted to a data processing system for processing, and the geometric parameters of the train wheel are obtained. The measuring device is advantaged in that online dynamic measurement of the geometric parameters of the train wheel can be achieved, measurement accuracy is relatively high, the speed is fast, and the measurement scope is large.

Description

technical field [0001] The invention belongs to the technical field of train wheel parameter detection, and more specifically relates to an online dynamic measurement device and a measurement method for train wheel geometric parameters. 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 diameter (D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01B11/06G01B11/10B61K9/12
CPCB61K9/12G01B5/0025G01B11/00G01B11/0608G01B11/0691G01B11/10
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