The invention discloses a double-cross-beam type crown block lifting appliance. The double-cross-beam type crown block lifting appliance comprises cross beams and a lifting appliance body, wherein the cross beams comprise an upper cross beam and a lower cross beam capable of horizontally rotating around the center of the upper cross beam, the lifting appliance body comprises clamping arms which are located on the left side and the right side of the lower cross beam and can move towards the center of the lower cross beam at the same time or move towards the left end and the right end of the lower cross beam at the same time in the axis direction of the lower cross beam, and a clamping arm driving device for driving the two clamping arms to move is arranged on the lower cross beam. According to the double-cross-beam type crown block lifting appliance, the horizontal stability of the lifting appliance body is ensured through the design that the double cross beams match with double lifting points, the design of the double cross beams and a rotating shaft meets the requirement for different falling directions of a cab, the requirement for stable positioning after the lower cross beam rotates is met through a collision bead structure and a collision bead support structure, the lifting appliance body is automatically positioned through space, opening and closing actions of a lifting hook is electrically controlled, rotary positioning is mechanically assisted and two-gear closing stroke automatic control design is adopted, and lifting requirement of lifting of different vehicles models is met.

    本发明公开了一种双横梁式天车吊具,包括横梁和吊具,横梁包括上横梁和可绕上横梁中心水平转动的下横梁,吊具包括位于下横梁的左右两侧、可沿下横梁的轴线方向同时向下横梁中心移动或同时分别向下横梁的左右两端移动的夹臂,下横梁上设置有驱动两个夹臂运动的夹臂驱动装置。本发明通过双横梁配合双吊点的设计确保了吊具的水平稳定性。双横梁与转轴的设计满足了驾驶室落放朝向不同的要求,并通过碰珠结构和碰珠支架的结构满足了下横梁旋转后的定位稳定的要求。吊具通过空间自动定位,吊钩开、闭动作电控化、机械辅助旋转定位,采用两档闭合行程自动控制设计,满足不等宽车型吊取需要。


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    Title :

    Double-cross-beam type crown block lifting appliance


    Additional title:

    一种双横梁式天车吊具


    Contributors:
    HAO JIANFENG (author) / CHENG LONG (author)

    Publication date :

    2021-08-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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