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On-line detection method and device for vehicle wheel set diameter

A detection method and detection device technology, which are applied to measurement devices, optical devices, wheel rim measurement/measurement, etc., can solve the problems of lack of and difficult to track and record the diameter parameters of train wheels for a long time, and achieve the effect of easy maintenance.

Inactive Publication Date: 2007-07-18
HANGZHOU DIANZI UNIV
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  • Claims
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Problems solved by technology

Due to the lack of more accurate, fast and economical automatic detection means of wheel set diameter, it is difficult to track and record the parameters of train wheel set diameter for a long time

Method used

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  • On-line detection method and device for vehicle wheel set diameter
  • On-line detection method and device for vehicle wheel set diameter
  • On-line detection method and device for vehicle wheel set diameter

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Embodiment Construction

[0022] A railway vehicle wheel set is a whole consisting of two identical wheels and an axle. The contact part where the wheel rolls on the rail is called the tread, and the inner side of the wheel tread has a flange protruding along the circumference called the rim, and the point on the tread at a distance of 70mm from the inner side of the rim is called the base point, and the rolling circle is formed by the tread. For the circle formed by the upper base point, the average wheel diameter parameter is the average diameter of the rolling circle, and the left and right wheel diameter difference parameter is the difference between the average diameter parameters of the left and right wheels in the wheel set.

[0023]Fig. 1 is a schematic diagram of the overall configuration of the detection device, which is illustrated by taking the first set of unit detection device 6 on the left in the figure as an example. Two speed measuring position sensors 1 and 2 are arranged in sequence ...

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Abstract

The present invention relates to a method for on-line detecting railway car wheel set diameter and its detection equipment. It is characterized by that it utilizes the projection information of light source of structure light on the wheel set tread and base point information detected by displacement sensor to detect wheel average diameter parameter and left-right wheels wheel-diameter difference parameter. Said method includes the following steps: speed detection, starting light source, starting inside surface detection and image collection, image treatment, fitting rolling circle and diameter parameter calculation.

Description

technical field [0001] The invention relates to a detection method and a detection device, in particular to an on-line detection method and a detection device for the diameter of a vehicle wheel set in rail transit, in particular to using a structured light source to irradiate the tread surface of a vehicle wheel set running at a low speed, to obtain image data, and to real-time The image data is analyzed to obtain a detection method and a detection device for a diameter parameter of a vehicle wheel set. Background technique [0002] As an important running part, the wheel set of a vehicle is very common in the process of driving. Therefore, it is of great significance to grasp the wear condition of the wheel in time to ensure the safety of the vehicle operation. The wear parameters of the vehicle wheel set include geometric parameters and surface defect parameters, among which the diameter parameter of the wheel set is an important parameter in the geometric parameters. At...

Claims

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Application Information

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IPC IPC(8): B61K9/12G01B11/08G01B11/10G06T7/60
Inventor 吴开华庄霏朱峰
Owner HANGZHOU DIANZI UNIV
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