The invention relates to the technical field of building mechanical equipment, and discloses a hoisting device capable of effectively preventing heavy objects from doing stalling falling and preventing heavy objects from falling to the ground and hurting people. The hoisting device comprises a supporting plate, the front face of the supporting plate is fixedly connected with a limiting block, the top of the limiting block is provided with limiting grooves, the interior of the supporting plate is movably connected with a pay-off shaft, the outer wall of the pay-off shaft is fixedly connected with a rotating disc, and sliding grooves are formed in the rotating disc. According to the hoisting device capable of effectively preventing heavy objects from doing stalling falling and preventing heavy objects from falling to the ground and hurting people, when a crane stalls, sliding blocks are in contact with fixed blocks at the moment, movable contacts are further in contact with fixed contacts, at the moment, electrorheological fluid is changed from liquid to solids, and therefore the effect of changing the state of the electrorheological fluid is achieved. When the crane stalls, limiting rods can be clamped in the limiting groove at the moment, the rotating disc and the pay-off shaft are further clamped, and therefore the stalling self-locking effect in the hoisting process of the crane is achieved.

    本发明涉及建筑机械设备技术领域,且公开了一种有效预防重物失速下落避免重物落地伤人的吊装装置,包括支撑板,所述支撑板的正面固定连接有限位块,所述限位块的顶部开设有限位槽,所述支撑板的内部活动连接有放线轴,所述放线轴的外壁固定连接有转动盘,所述转动盘的内部开设有滑槽。该有效预防重物失速下落避免重物落地伤人的吊装装置当吊车发生失速现象时,此时滑块与固定块接触,进一步使得活动触点与固定触点接触,此时电流变体由液体变为固体,从而达到了改变电流变体状态的效果。当吊车发生失速情况时,此时限位杆会卡在限位槽的内部,进一步使得转动盘和放线轴被卡住,从而达到了吊车吊装的过程中失速自锁的效果。


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    Title :

    Hoisting device capable of effectively preventing heavy objects from doing stalling falling and preventing heavy objects from falling to ground and hurting people


    Additional title:

    一种有效预防重物失速下落避免重物落地伤人的吊装装置


    Contributors:
    YANG HAI (author)

    Publication date :

    2021-06-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES