The invention relates to the technical field of hoisting machinery, in particular to a portal crane mounting method. The mounting method of the portal crane comprises the following steps that a connecting section is arranged at the mounting position of a rigid leg below a main beam, the height of the inner side of the connecting section is made to be lower than the height of the outer side of the connecting section by a first set value, and the outer side of the rigid leg is rotationally connected with the outer side of the connecting section; the main beam is lifted, and after the rigid legs are adjusted to be approximately perpendicular to the main beam, the rigid legs and the connecting sections are temporarily fixed; mounting a rigid leg cart, a flexible leg and a flexible leg cart; and the main beam is pulled, and after the rigid leg reaches the first set offset, the connecting section is welded to the rigid leg. The problem that in the prior art, when a large-tonnage crane is installed, installation of rigid supporting legs of the large-tonnage crane is difficult to meet the requirement, and consequently construction efficiency is affected by reinstallation is solved.

    本发明涉及起重机械技术领域,具体涉及一种门式起重机安装方法。该门式起重机安装方法,包括以下步骤:在主梁下刚性腿的安装位置设置连接段,并且使所述连接段内侧高度低于外侧高度第一设定值,将刚性腿外侧与所述连接段外侧转动接;提升主梁,并调整刚性腿与主梁大致垂直后,将所述刚性腿与连接段临时固定;安装刚性腿大车、柔性腿和柔性腿大车;拉拽主梁,使刚性腿达到第一设定偏移量后,将连接段与刚性腿焊接。能够解决现有技术中大吨位的起重机在安装时,其刚性支腿的安装很难达到要求,导致重装而影响施工效率低下的问题。


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    Title :

    Portal crane mounting method


    Additional title:

    一种门式起重机安装方法


    Contributors:
    CHEN SHIZHEN (author) / CHENG XIAOLONG (author) / ZHANG XIAOJIA (author) / RONG ZIJIAN (author) / SHEN DENGBING (author) / FENG HUOLIN (author)

    Publication date :

    2022-04-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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