| 摘要 |
PROBLEM TO BE SOLVED: To absorb the rotational reaction of a rotational driving part without using a leader mast during the hitting operation of a lift type rotation excavating apparatus employing an auger. SOLUTION: The lift type rotation excavation apparatus 100 is featured that a rotational reaction force removing stay 15 is projectingly set at the side surface of a rotation driving part 10 being lifted at a boom, and rotational reaction force removing wire 18 attached to the tip end of the boom is pierced through a hole at the distal end part of the stay 15, and further, the other end of which is secured to the side of a vehicle 110 via a support means 19 near an excavation hole. As such, the wire 18 prevents the corotation caused by the rotational reaction force of the rotation driving part 10.
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