Fixing method, fixing frame and train wheel outline measuring system
A technology of fixing a frame and a measuring system, applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problems of inconsistent height of settlement, affecting the accuracy of wheel shape, etc., and achieve the effect of ensuring accuracy
Inactive Publication Date: 2017-02-22
CHENGDU TIEAN SCI & TECH
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Problems solved by technology
In the specific implementation, each camera and line light source are respectively installed on the track bed of the train track. When the train passes by, the track bed will subside. The camera cannot be consistent in the height of the settlement, which will affect the accuracy of the wheel shape measurement
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[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0035] The train wheel profile measurement system usually adopts the light cut image method to realize the measurement of the train wheel profile. The measurement principle is: the line light source is projected on the wheel tread part along the wheel center direction to form a light intercept curve from the wheel rim to the tread. The curve contains the information of the tread shape. A camera device at a certain angle to the incident di...
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Abstract
The invention discloses a fixing method, a fixing frame and a train wheel outline measuring system. The measuring system includes a fixing frame, at least one camera device and at least one light source device; the fixing frame includes at least one camera device fixing point and at least one linear light source device fixing point; the method includes steps of installing the camera device on the camera device fixing point; installing the linear light source device on the linear light source device fixing point; installing the fixing frame on a track bed of a train track. According to the fixing method, the fixing frame and the train wheel outline measuring system, the relative positions of the linear light source device and the camera device cannot be changed even through the track bed is settled when the train passes through, and thereby guaranteeing the accuracy of the wheel outline measurement.
Description
Technical field [0001] The invention relates to the technical field of train operation safety guarantee systems, and more specifically, to a fixing method, a fixing frame and a train wheel profile measurement system. Background technique [0002] As the key load-bearing component of the train unit, the quality of the train wheel is crucial to driving safety. As one of the most important content of the wheel quality state inspection link, the wheel shape and geometry size, whether it can be detected timely and accurately, is particularly important. [0003] At present, the “light cut image method” is usually used in the prior art to measure the geometric dimensions of the wheel. The line light source projects the wheel tread along the direction of the wheel center to form a light cut curve from the rim to the tread. The light cut curve contains For the tread profile size information, use a camera at a certain angle to the light incident direction to capture the wheel profile light-...
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Login to View More IPC IPC(8): G01B11/24
CPCG01B11/24
Inventor 杨凯高晓蓉王黎赵全轲王泽勇彭建平张渝彭朝勇戴立新张成杰谢利明
Owner CHENGDU TIEAN SCI & TECH