| 摘要 |
PROBLEM TO BE SOLVED: To replace a bent impact rod in the early stage by knowing occurrence of bend of an impact rod at a place remote from a rod unit. SOLUTION: In a mine processor 2 comprising a rod unit 4 having a plurality of impact rods 14 arrange in parallel on an impact rod supporting plate 13, and a mechanism 3 for impacting the rod unit 4 and supported by the boom of the mine processor through a slide mechanism, the impact rod 14 has hollow structure and a conductive rod 35 is placed removably in the hollow section 17 of the impact rod 14 through an insulating material 34. The mine processor 2 is provided with a bend detecting part 30 where the conductive rod 35 is supported conductively by a conductive rod fixing plate 33 insulated from the chassis earth, and a unit 37 for determining bend of the impact rod 14 from variation in the electrical resistance at the bend detecting part 30.
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