The invention relates to the technical field of engineering machinery, and discloses a control method, a controller and a control device for a crane and the crane. The control method comprises the following steps: receiving an instruction for indicating to change the amplitude of the superlift device to a first target angle; the angle of the suspension arm is limited below a first preset angle; the first ratchet wheel and the second ratchet wheel are arranged in an unlocking state, so that the first steel wire rope and the second steel wire rope are in a rope loosening state; acquiring a first tension value of the first steel wire rope and a second tension value of the second steel wire rope; under the condition that the first tension value and the second tension value are zero, the first mast and the second mast are folded until the super-lift field angle formed by the first mast and the second mast is lower than a second preset angle; and changing the amplitude of the first mast and the second mast to a first target angle. According to the invention, the damage to the balance of the whole machine due to misoperation of a machinist in the hoisting process can be avoided, the loss of structural parts can be reduced, the failure rate of the crane is reduced, and the safety and controllability of the operation process under the superlift working condition are ensured.

    本发明涉及工程机械技术领域,公开了一种用于起重机的控制方法、控制器、控制装置及起重机。控制方法包括:接收指示将超起装置变幅至第一目标角度的指令;将吊臂的角度限制在第一预设角度之下;将第一棘轮和第二棘轮设置为脱锁状态,以使得第一钢丝绳和第二钢丝绳为松绳状态;获取第一钢丝绳的第一拉力值和第二钢丝绳的第二拉力值;在第一拉力值和第二拉力值均为零的情况下,收拢第一桅杆和第二桅杆,直至第一桅杆和第二桅杆形成的超起张角低于第二预设角度;将第一桅杆和第二桅杆均变幅至第一目标角度。本发明可以避免机手在吊载过程中因为误操作而破坏整机平衡,可以降低结构件损耗,降低起重机的故障率,保证超起工况的作业过程安全可控。


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    Titel :

    Control method, controller and control device for crane and crane


    Weitere Titelangaben:

    用于起重机的控制方法、控制器、控制装置及起重机


    Beteiligte:
    YOO YOUNG-CHAN (Autor:in) / LI YAOYI (Autor:in) / CAO YU (Autor:in) / PENG MUYUAN (Autor:in)

    Erscheinungsdatum :

    2022-11-01


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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