DYNAMIC LIFT-OFF CONTROL DEVICE, AND CRANE

摘要

This dynamic lift-off control device is mounted in a crane having a boom and a winch that winds a wire rope, the dynamic lift-off control device controlling dynamic lift-off of a suspended load, wherein the dynamic lift-off device comprises a rotation detection unit that detects the rotation speed of the winch, a pressure detection unit that detects a pressure value of a raising/lowering lever that raises/lowers the boom, an estimation unit that estimates the raising/lowering angular velocity of the boom on the basis of the respective detection values from the rotation detection unit and the pressure detection unit, and a control unit that controls the raising/lowering operation of the boom on the basis of the estimated value estimated by the estimation unit and a target raising/lowering angular velocity of the boom that is calculated on the basis of the detection value from the pressure detection unit.