The invention discloses a large crane propeller strut pin shaft mounting method which comprises the following steps: respectively arranging pin shaft hanging brackets above upper hinge points on the outer side walls of two sides of a pull rod of a propeller strut, and mounting shaft clamping plates at the upper hinge points on the outer side walls of the pull rod so as to partially or completely shield shaft holes; the propeller strut is lifted and turned over, the upper hinge point pin shaft is connected through the pin shaft lifting frame in a lifting mode, the upper hinge point pin shaft is aligned with the shaft hole, the upper hinge point pin shaft is prevented from penetrating through the shaft hole of the pull rod through the shaft clamping plate, and meanwhile the purpose of fixing the pin shaft is achieved. A propeller strut is hoisted to the position of an upper hinge point of a rotary assembly, then a shaft clamping plate is dismantled, a plurality of tool screws are distributed around a shaft hole on the outer side wall of a pull rod and are parallel to the shaft hole, a jackscrew clamping plate and a tool blind plate are installed through the tool screws, the jackscrew clamping plate is sleeved with an upper hinge point pin shaft in a matched mode, and the upper hinge point pin shaft is connected with the tool blind plate in a matched mode. The tool blind plate is located near the end, opposite to the pull rod, of the upper hinge point pin shaft, then the pushing oil cylinder is installed on the tool blind plate, the upper hinge point pin shaft and the pin shaft hanging bracket are separated, and the pushing oil cylinder is used for pushing the upper hinge point pin shaft.
本发明公开了一种大型起重机人字架销轴安装方法,包括在人字架的拉杆两侧的外侧壁于上铰点上方分别设置销轴吊架,并在拉杆外侧壁于上铰点处安装卡轴板以局部或全部遮挡轴孔;将人字架吊起翻身,通过销轴吊架吊接上铰点销轴,上铰点销轴与轴孔对齐并通过卡轴板防止上铰点销轴穿过拉杆的轴孔,同时达到销轴固定目的;将人字架吊装到回转总成的上铰点位置,然后拆除卡轴板,在拉杆的外侧壁于轴孔周围分布地安装数根工装螺杆与轴孔平行,并通过工装螺杆安装顶丝卡板和工装盲板,顶丝卡板匹配地套合上铰点销轴,工装盲板位于上铰点销轴背向拉杆的一端附近,再于工装盲板上安装推顶油缸,将上铰点销轴与销轴吊架分拆,通过推顶油缸顶压上铰点销轴。
Large crane propeller strut pin shaft mounting method
一种大型起重机人字架销轴安装方法
2023-03-21
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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