| 摘要 |
PROBLEM TO BE SOLVED: To provide an abrasion sensor measuring the abrasion loss of a roller cutter disk in such a structure that is hardly damaged by collision of muck cutting and can be put at a position without any trouble of the roller cutter disk replacement work.SOLUTION: An abrasion sensor 1 comprises a sensor body 11 integrally provided in the center of a pedestal 13, the sensor body 11 incorporating a magnetic sensor circuit 12 therein. A hard metal plate 15 is integrally bonded to the top face of the sensor body 11 to cover the top face. |
