发明名称 |
CUTTER BIT REPLACEMENT TIMING SENSING APPARATUS OF SHIELD MACHINE AND CUTTER BIT CHARGING DEVICE OF SHIELD MACHINE EQUIPPED THE SAME |
摘要 |
PROBLEM TO BE SOLVED: To provide a cutter bit abrasion sensing apparatus of a shield machine for continuously sensing replacement timing of cutter bits without providing a working space for replacement or the like in the case that the cutter bit is replaced on the way of boring as the long distant boring shield machine, and to provide a cutter bit charging device of the shield machine using it. SOLUTION: The cutter bit wear sensing apparatus comprises a first abrasion sensing bit 9 provided on a cutter head 4, arranged at substantially the same position as the cutter bit in boring starting and sensing abrasion of the cutter bit; and a second abrasion sensing bit 11 positioned rearward from the cutter bit in excavation starting, moved forward after replacement of the cutter bit, arranged at substantially the same position as the cutter bit after replacement and sensing abrasion of the cutter bit after replacement. COPYRIGHT: (C)2004,JPO |
申请公布号 |
JP2004003266(A) |
申请公布日期 |
2004.01.08 |
申请号 |
JP20020286042 |
申请日期 |
2002.09.30 |
申请人 |
PENTA OCEAN CONSTR CO LTD;JFE ENGINEERING KK |
发明人 |
HARA SHUICHI;MATSUOKA YOSHIHARU;HAYASHI TOMOYUKI;KOBAYASHI AKIRA |
分类号 |
E21D9/087;E21D9/08;(IPC1-7):E21D9/08 |
主分类号 |
E21D9/087 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|