The invention belongs to the field of cranes, and particularly relates to an anti-falling protection mechanism for a large shipbuilding portal crane, which comprises outer plates, a lifting hook fixedly connected between the bottoms of the two outer plates, a pulley rotationally connected between the two outer plates and above the lifting hook, a steel wire rope wound on the outer side of the pulley, and the two outer plates are fixedly connected through a bracket. Two fixed lantern rings are fixedly connected to the positions, located on the two sides of the pulley, between the two outer plates, the inner side of each outer plate is fixedly connected with a set of sliding rod bases and sliding rods, each set of sliding rods is slidably connected with movable lantern rings corresponding to the fixed lantern rings in position, and a set of brake winding ropes are fixedly connected between each fixed lantern ring and the corresponding movable lantern ring. And the steel wire rope passes through the centers of each fixed lantern ring and each movable lantern ring. By arranging the brake winding rope, the brake winding rope is rapidly tightened and wound on the outer side of the steel wire rope, the contact area of the brake winding rope and the steel wire rope is larger, friction force applied to the steel wire rope is more uniform, and the device is rapidly fixed to improve the anti-falling effect.

    本发明属于起重机领域,具体为一种大型造船门式起重机防坠落保护机构,外板,两个外板底部之间固定连接有吊钩,两个外板之间位于吊钩上方处转动连接有滑轮,滑轮外侧缠绕设置有钢丝绳,两个外板之间通过支架固定连接,两个外板之间位于滑轮两侧处固定连接有两个定套环,每个外板内侧固定连接有一组滑杆座和滑杆,每组滑杆上滑动连接有与定套环位置对应的动套环,每个定套环与对应的动套环之间固定连接有一组制动绕索,钢丝绳从每个定套环以及动套环中心穿过。通过设置制动绕索,制动绕索快速收紧缠绕在钢丝绳外侧,制动绕索与钢丝绳的接触面积更大,对于钢丝绳施加的摩擦力更加均匀,实现快速固定装置提高防坠落的效果。


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    Title :

    Anti-falling protection mechanism of large shipbuilding portal crane


    Additional title:

    一种大型造船门式起重机防坠落保护机构


    Contributors:
    YANG SHAOYONG (author) / LIU YONGGANG (author) / HUANG JINQIAN (author) / ZHANG ZONGSHAN (author) / SONG ZITAO (author) / ZHANG ZHENQIANG (author) / WU FAN (author)

    Publication date :

    2025-05-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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