The invention provides a lifting hook over-hoisting detection device for a floating crane. The lifting hook over-hoisting detection device for the floating crane comprises a lifting mechanism, a supporting mechanism, a heavy hammer limit switch and a heavy hammer assembly, wherein the lifting mechanism is used for driving a lifting hook to ascend; the supporting mechanism is used for supporting the heavy hammer limit switch; the heavy hammer limit switch is connected with the heavy hammer assembly through a connecting steel wire rope; in a first state, the lifting hook does not make contact with the heavy hammer assembly, and a rocker arm of the heavy hammer limit switch is located at a first station; and in a second state, the lifting hook ascends to a preset position, the upper end of the lifting hook supports the heavy hammer assembly, the rocker arm of the heavy hammer limit switch is located at a second station, and a signal for limiting continuous lifting of the lifting hook is sent out. According to the lifting hook over-hoisting detection device for the floating crane provided by the invention, the tightening state of the connecting steel wire rope can be always kept, a detection signal is prevented from being sent out by mistake when the heavy hammer assembly is lifted up, and the over-hoisting detection of the lifting of the movable steel wire rope is achieved. Due to the design of multiple counterweight plates, the overall gravity center of the heavy hammer assembly can be adjusted to be on the axis of a heavy hammer, and the jamming of the heavy hammer assembly is reduced.

    本发明提供一种用于浮式起重机的吊钩冲顶检测装置,包括:提升机构、支撑机构、重锤限位开关和重锤装配,所述提升机构用于带动吊钩上升运动,所述支撑机构用于支撑所述重锤限位开关,所述重锤限位开关和重锤装配通过连接钢丝绳相连,第一状态下,所述吊钩不与重锤装配接触,所述重锤限位开关的摇臂处于第一工位,第二状态下,所述吊钩上升到预设位置,吊钩上端托起重锤装配,所述重锤限位开关的摇臂处于第二工位,发出限制吊钩继续上升的信号。本发明能始终保持连接钢丝绳的绷紧状态,防止重锤装配被带起误发检测信号,实现动钢丝绳上升的冲顶检测。多个配重板设计,可以调节重锤装配的整体重心,使其重心在重锤的轴线上,重锤装配减少卡阻。


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    Title :

    Lifting hook over-hoisting detection device for floating crane


    Additional title:

    一种用于浮式起重机的吊钩冲顶检测装置


    Contributors:
    HUANG LIN (author) / HAN LI (author) / GAO FEI (author)

    Publication date :

    2021-12-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / F16F SPRINGS , Federn



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