Abrasion detecting apparatus detecting abrasion of component of cutter head and tunnel boring machine including abrasion detecting apparatus
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United States of America Patent
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Jul 29, 2014
Grant Date -
Feb 10, 2011
app pub date -
Jul 27, 2010
filing date -
Aug 4, 2009
priority date (Note) -
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Abstract
An abrasion detecting apparatus is configured to detect the abrasion of a component of a cutter head of a tunnel boring machine, which is configured to excavate ground using a cutter to bore a tunnel. The abrasion detecting apparatus includes an abrasion detection probe located rearward of a front end of the cutter by a predetermined distance and located forward or rearward of a front end of the component, whose abrasion is to be detected, of the cutter head by a predetermined distance, where the abrasion detection probe includes an abrasion detecting portion at a front end portion thereof. The abrasion detecting portion abrades away by contact with the ground to be excavated. The abrasion detecting apparatus also includes a detecting device configured to detect an abrasion of the abrasion detecting portion.
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