The invention relates to a self-locking lifting appliance for grabbing mushroom-head-shaped lifting pieces, and belongs to the technical field of lifting facilities. The lower end of the lifting appliance extends out of a top cover of the central guide column and is fixedly connected with the outer sleeve, the central guide column is sleeved with a clamping cylinder which forms a lower limiting moving pair with the central guide column, and the clamping cylinder is provided with a rotating cylinder which forms a rotating pair with the clamping cylinder and is positioned in the outer sleeve; the outer circumferential surface of the rotating cylinder is provided with a concave driving curve profile, and the inner circumferential surface of the rotating cylinder is provided with a concave reducing curve profile which is matched with the driving curve profile; the outer sleeve is provided with a fastening pin of which the inner end and the driving curve form a first cam pair; and the clamping cylinder is provided with a clamping pin of which the outer end and the reducing curve form a second cam pair. After the lifting appliance is adopted, grabbing, lifting and unloading of the mushroom-head-shaped lifting piece are automatically completed completely by means of rising and falling of the lifting appliance, manual intervention is not needed, and therefore labor intensity is remarkably relieved, work efficiency is improved, safety is ensured, and the requirement for long-distance remote control operation can be met.

    本发明涉及一种抓取蘑菇头状吊件的自锁吊具,属于吊装设施技术领域。该吊具下端延伸出中心导柱的顶盖与外套筒固连,中心导柱套装有与之构成下限位移动副的夹紧筒,夹紧筒装有与之构成转动副且位于外套筒内的旋转筒;旋转筒的外圆周面具有凹陷驱转曲廓,旋转筒的内圆周面具有与驱转曲廓配合作用的凹陷变径曲廓;外套筒装有内端与驱转曲廓构成第一凸轮副的紧定销钉,夹紧筒装有外端与变径曲廓构成第二凸轮副的夹持销钉。采用本发明后,蘑菇头状吊件的抓取、起吊、以卸载完全借助吊具的起落自动完成,无需人工干预,因此显著减轻劳动强度、提高工效,并确保安全,可以满足远距离遥控操作的需求。


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    Title :

    Self-locking lifting appliance for grabbing mushroom-head-shaped lifting piece


    Additional title:

    一种抓取蘑菇头状吊件的自锁吊具


    Contributors:
    LI WEIDONG (author) / LU DINGQI (author) / WU GAOQIANG (author) / WU LING (author) / LI YUZHOU (author) / WANG XINGHAI (author) / WANG XIANG (author) / ZHAO HANTIAN (author) / ZHANG YICHI (author)

    Publication date :

    2023-11-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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