The invention discloses a method for quickly replacing a gantry hook lifting appliance of a large crane, which comprises the following steps of: fixedly winding four steel wire ropes of a main hoisting mechanism on winding drum groups on two sides by using steel wire rope pressing plates and compression bolts respectively, and fixing the horizontal direction positions of the steel wire ropes on the outer side of the gantry hook lifting appliance wound into pulley grooves by using manufactured steel wire rope fixing clamps respectively; the positions of the adjacent steel wire ropes are relatively fixed, so that the relative positions of the adjacent steel wire ropes in the vertical direction are prevented from being changed; movable pulley block protective covers and movable pulley block mandrels on the two sides of the gantry hook lifting appliance are removed respectively, and movable pulley blocks on the two sides of the gantry hook lifting appliance are lifted and removed in sequence; the crane moves to the position above the gantry hook lifting appliance to be replaced, then the movable pulley blocks on the two sides of the gantry hook lifting appliance and the steel wire ropes are sequentially hoisted and placed into the pulley grooves according to the winding sequence of the steel wire ropes, movable pulley block mandrels are installed, movable pulley block protective covers on the two vertical sides of the gantry hook lifting appliance are installed respectively, and the replacement operation of the whole gantry hook lifting appliance is completed.
本发明公开了一种大型起重机龙门钩吊具的快速更换方法,主起升机构的4根钢丝绳分别使用钢丝绳压板及压紧螺栓固定缠绕在两侧卷筒组上,用制作的钢丝绳固定卡具分别固定住龙门钩吊具外侧钢丝绳绕入滑轮槽的水平方向位置,将每一根相邻钢丝绳位置相对固定,防止相邻的钢丝绳发生垂直方向的相对位置的变化;再分别拆除龙门钩吊具两侧动滑轮组防护罩、动滑轮组芯轴、依次吊装拆除龙门钩吊具两侧的动滑轮组;行车移位至待更换龙门钩吊具上方,再依次吊装龙门钩吊具两侧的动滑轮组及钢丝绳按钢丝绳缠绕顺序摆放进滑轮槽、安装动滑轮组芯轴、分别安装龙门钩吊具垂直两侧的动滑轮组防护罩,完成整个龙门钩吊具的更换作业。
Rapid replacement method for gantry hook lifting appliance of large crane
一种大型起重机龙门钩吊具的快速更换方法
2023-12-05
Patent
Electronic Resource
Chinese
European Patent Office | 2022
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