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TBM hob abrasion geometric dimension vision measurement method and system

A technology of visual measurement and geometric dimensions, applied in image data processing, instrumentation, calculation, etc., can solve problems such as hob wear

Active Publication Date: 2020-07-24
CHINA RAILWAY 15TH CONSTR BUREAU GRP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of TBM (tunnel boring machine) hob wear geometric dimension visual measurement method and system, which can effectively solve the on-site construction hob wear purely manual measurement problem, construct hob wear geometric dimension vision The measuring system can accurately locate the number of the hob, image and visually measure the wear of the hob, improve the measurement accuracy and reduce labor

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  • TBM hob abrasion geometric dimension vision measurement method and system
  • TBM hob abrasion geometric dimension vision measurement method and system
  • TBM hob abrasion geometric dimension vision measurement method and system

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Embodiment Construction

[0043] The present invention will be described in detail below in conjunction with the examples.

[0044] The present invention provides a kind of TBM hob wear geometric dimension visual measurement method, it comprises the following steps:

[0045] 1) Image shooting of the pre-processed TBM hob to obtain an image of the unworn cutterhead hob;

[0046] Pre-processing includes setting up the visualization system and establishing the Cartesian coordinate system of the cutter head;

[0047] Among them, the setting of the visualization system is: open a hole above the TBM front shield baffle, and the hole does not interfere with other parts of the TBM hob, weld a flange at the opening above the front shield baffle, and install it through the flange There is a visualization system; in this embodiment, the visualization system adopts a fisheye lens camera, which has an observable range of 180 degrees. Full coverage shot.

[0048] The Cartesian coordinate system of the cutter head...

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Abstract

The invention relates to a TBM hob abrasion geometric dimension vision measurement method and system. The method comprises the following steps of: carrying out image photographing of a pre-processed TBM hob to obtain an unworn cutter hob image; carrying out edge recognition on the hob images of a cutterhead through graphic processing to obtain information Cis (dis, ris) of each hob, then recognizing the hob number, and determining the radius of the ith hob; acquiring an image of a worn hob, carrying out image processing, acquiring information of each worn hob, determining the hob number, and subtracting the radius of the worn hob from the radius of a hob of which the hob number is not worn to obtain the wear condition of each hob.

Description

technical field [0001] The invention relates to the field of tool wear measurement, in particular to a method and system for visually measuring the wear geometric dimension of a TBM (tunnel boring machine) hob. Background technique [0002] With the development of tunnel and underground space engineering, TBM (tunnel boring machine) is used more and more. TBM uses disc-shaped hob to break rock. Knives will inevitably wear out, including: normal wear and abnormal wear. Normal wear refers to the process of uniform reduction of the knife ring in the diameter direction, and abnormal wear mainly refers to the breakage, chipping, rolling and partial wear of the knife ring. When the normal wear of the cutter ring reaches a certain level or abnormal wear occurs, the hob needs to be replaced. Otherwise, the load and wear of other hobs on the disk will be increased, and in severe cases, all the hobs of the entire cutter head will be scrapped. According to statistics, among the repla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/60G06T7/13
CPCG06T7/60G06T7/13G06T2207/30164G06T2207/20024Y02P90/30
Inventor 杨云李杰牛得草黄元俊张玉龙康元锋胡涛李春英
Owner CHINA RAILWAY 15TH CONSTR BUREAU GRP
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