The invention discloses a lifting device with a variable lifting diameter. The lifting device comprises a lifting rod, a mounting base arranged on the lifting rod and a plurality of lifting appliancesarranged around the circumferential direction of the mounting base at intervals; an annular opening is defined by the plurality of lifting appliances, the plurality of lifting appliances can move inthe direction close to or away from the mounting base respectively, and when the plurality of lifting appliances move in the direction close to the mounting base respectively, the caliber of the annular opening is gradually reduced; and when the plurality of lifting appliances move in the direction away from the mounting base respectively, the caliber of the annular opening is gradually increased.According to the lifting device, the plurality of lifting appliances capable of moving in the direction close to or away from the lifting rod are arranged, therefore, when annular parts with different diameters need to be lifted, only the caliber of the annular opening formed among the plurality of lifting appliances needs to be changed, and the variable caliber can be flexibly suitable for the annular parts with the different diameters; the application universality of the lifting device is improved, and the lifting cost is greatly saved.

    本发明公开了一种吊运直径可变的起吊装置,其包括吊杆、设于吊杆上的安装座、绕着安装座的周向间隔设置的多个吊具,多个吊具之间围合成一环口,多个吊具分别能够沿着靠近或远离安装座的方向运动,当该多个吊具分别沿着靠近安装座的方向运动时,环口的口径逐渐减小;当该多个吊具分别沿着远离安装座的方向运动时,环口的口径逐渐增大。本发明的起吊装置,通过设置多个能够沿着靠近或远离吊杆的方向运动的吊具,使得在需要起吊不同直径的环形零件时,只需改变多个吊具之间所形成环口的口径即可,可变的口径能够灵活适用于多种不同直径的环形零件,增加了该起吊装置适用的广泛性,且极大的节约了起吊成本。


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    Title :

    Lifting device with variable lifting diameter


    Additional title:

    一种吊运直径可变的起吊装置


    Contributors:

    Publication date :

    2020-08-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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