Provided is a dynamic-lift-off determination device capable of quickly performing a dynamic-lift-off determination by a simple method, while suppressing swinging of a load. A dynamic-lift-off determination device C includes: a boom 14 that is configured so as to be freely raised and lowered; a winch 13 that lifts/lowers a suspended load via a wire rope 16; a load-weight measuring means 22 that measures a load weight acting on the boom 14; a rope-length and lifting-speed measuring means 24 that measures the rope length of the wire rope 16; and a control unit 40 that controls the boom 14 and the winch 13 and that determines, when the winch 13 winds up the rope to dynamically lift off the suspended load, the dynamic lift off on the basis of a temporal change in the measured load weight and a temporal change in the measured rope length.
DYNAMIC-LIFT-OFF DETERMINATION DEVICE, DYNAMIC-LIFT-OFF CONTROL DEVICE, MOBILE CRANE, AND DYNAMIC-LIFT-OFF DETERMINATION METHOD
2022-03-17
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |
European Patent Office | 2020
|European Patent Office | 2022
|DYNAMIC LIFT OFF DETERMINATION DEVICE, DYNAMIC LIFT OFF CONTROL DEVICE, AND MOBILE CRANE
European Patent Office | 2022
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