The invention provides a prefabricated box girder turnover telescopic lifting appliance and a using method, the prefabricated box girder turnover telescopic lifting appliance comprises a lifting beam, sliding arms which slide relatively are arranged on the two sides of the lifting beam, a sliding lifting turnover mechanism is arranged at the ends of the sliding arms, bolts which slide left and right are arranged at the two ends of a sliding seat in the lifting turnover mechanism, and the bolt at one end further abuts against the interior of the sliding seat to slide front and back; a rotating arm is arranged on the outer side of the sliding seat, and a stop lever sliding back and forth is arranged at the end part of the rotating arm; the plug pins are inserted into the lifting holes in the two sides of the prefabricated box culvert, and the stop levers abut against the bottom of the prefabricated box culvert. The lifting appliance telescopic adjusting structure can lift prefabricated box culverts of various sizes, and during overturning, a fourth hydraulic cylinder drives a stop lever to abut against the bottom of the prefabricated box culvert, so that the end of the prefabricated box culvert is warped through pushing, and a third hydraulic cylinder conveniently drives a plug pin to exit from a lifting hole; therefore, the prefabricated box culvert can rotate by taking the plug pin fixed in the lifting hole as the center due to self weight, and the overturning stability of the prefabricated box culvert can be guaranteed through slow release of the fourth hydraulic cylinder.

    本发明提供了一种预制箱梁翻转可伸缩式吊具及使用方法,包括吊梁,吊梁两侧设有相对滑动的滑臂,滑臂端部设有滑动的吊装翻转机构,吊装翻转机构中的滑动座两端设有左右滑动的插销,一端的插销还抵靠在滑动座内前后滑动,滑动座外侧设有转动的转动臂,转动臂端部设有前后滑动的挡杆;插销插入在预制箱涵两侧的吊孔内,挡杆抵靠在预制箱涵的底部。吊具伸缩调节结构能够吊装各种尺寸的预制箱涵,在翻转时,通过第四液压缸驱动挡杆抵靠在预制箱涵底部,从而顶推使得预制箱涵端部翘起,便于第三液压缸带动插销退出吊孔,从而可以使得预制箱涵因自重沿固定在吊孔内的插销为中心进行转动,第四液压缸的缓慢释放能够保证预制箱涵翻转的稳定性。


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    Title :

    Retractable lifting appliance for overturning prefabricated box girder and using method of retractable lifting appliance


    Additional title:

    一种预制箱梁翻转可伸缩式吊具及使用方法


    Contributors:
    WANG WEI (author) / TANG JIANGPING (author) / LIU KANG (author) / WAN MENG (author) / HE MENGWEI (author) / XIA CHENG (author) / SHEN JIAWEI (author) / ZHANG SHIWEI (author) / CHEN DAN (author) / JIAO BING (author)

    Publication date :

    2023-01-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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