The invention discloses a synchronous propelling self-locking lifting appliance. The synchronous propelling self-locking lifting appliance comprises a fixed supporting seat, a stud, a movable supporting seat, a limiting ring, a lifting nut and a plurality of grippers. The bottom end of the stud is fixedly connected with the fixed supporting seat, the movable supporting seat, the limiting ring andthe lifting nut sleeve the stud from bottom to top, and a lifting ring is arranged at the top end of the stud. The limiting ring is fixed to the top face of the movable supporting seat through screws,the lifting nut is in threaded connection with the stud through internal threads, the top of the limiting ring protrudes inwards to form an annular inner edge, the bottom of the lifting nut protrudesoutwards to form an annular outer edge, and the annular outer edge is clamped in the annular inner edge to achieve axial connection of the limiting ring and the lifting nut. The grippers are hinged to the edge of the fixed supporting seat, the tops of the grippers are rotationally connected with one ends of corresponding connecting rods, the other ends of the connecting rods are rotationally connected with the movable supporting seat, and the bottom ends of the grippers are bent inwards. According to the synchronous propelling self-locking lifting appliance, the movable supporting seat is driven to move up and down by screwing the lifting nut, so that the grippers are driven to do opening and closing motion by driving the connecting rods, and a workpiece is gripped or loosened.

    本发明的一种同步推进自锁性吊具,包括:固定支座、螺柱、移动支座、限位环、升降螺母和多个抓手;螺柱底端与固定支座固定连接,移动支座、限位环和升降螺母从下至上套装在螺柱上,螺柱顶端设有吊环;限位环通过螺钉固定在移动支座顶面上,升降螺母通过内螺纹与螺柱螺接,限位环顶部向内凸出形成环形内缘,升降螺母底部向外凸出形成环形外缘,环形外缘卡设于环形内缘中实现限位环和升降螺母的轴向连接;多个抓手铰接在固定支座的边缘处,抓手的顶部与对应的连杆一端转动连接,连杆的另一端与移动支座转动连接,抓手的底端向内弯折。该吊具通过拧动升降螺母带动移动支座上下移动,从而通过驱动连杆,带动抓手做张合运动,实现抓紧或松开工件。


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    Title :

    Synchronous propulsion self-locking lifting appliance


    Additional title:

    一种同步推进自锁性吊具


    Contributors:
    WANG HUAN (author) / LI GUOMING (author) / HOU BO (author) / ZHANG CHENGWU (author) / PAN LEI (author)

    Publication date :

    2021-03-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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