论文部分内容阅读
自升式塔机标准节的安装与拆卸，通常是将吊臂转到引入塔身标准节的方向，借助于液压顶升机构、利用自身的卷扬机和吊钩进行顶升加节或拆节。然而在实际顶升作业中，吊臂转到引入塔身标准节的方向有时会碰到障碍物，如果旋转180°，将平衡臂转到引入塔身标准节的方向，则没有障
The installation and disassembly of the standard section of a jack-up tower crane usually takes the boom to the direction of introducing the standard section of the tower body and uses its own hoist and hook to lift or dismantle with the aid of the hydraulic jacking mechanism. However, during the actual jacking operation, the boom may sometimes encounter an obstacle when it is turned to introduce the standard section of the tower body. If it is rotated by 180 ° and the balance arm is moved to the direction of introducing the standard section of the tower body, there is no obstacle