CRANE AND METHOD FOR CONTROLLING CRANE

摘要

PROBLEM TO BE SOLVED: To provide a crane that can inhibit a crane structure from being deformed and vibrated at traveling and stopping of the crane.SOLUTION: In the crane, inverters 11 are provided respectively in travel devices 2 that are disposed oppositely while having an interval in a traverse direction x. The inverters 11 measure torque generated in a motor 8 connected thereto independently from each other to reduce revolution speed commanded from a controller 12 to the motor 8 at a ratio proportional to this torque value, thereby reducing a deviation in a travelling direction y of the travel devices 2 disposed oppositely.SELECTED DRAWING: Figure 5