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自升式塔吊是解决高层建筑施工中垂直运输和水平吊装的经济合理的施工机械。它不但具有起重能力大、工作面广、吊装性能好、工作效率高、占施工场地小等优点;而且还具有能随建筑物的增高而升高的特点。因此在建造大高度的工业和民用及造型复杂的建筑物中被广泛使用。一、顶升机构顶升机构是自升式塔机的重要装置,它可分为机械式和液压式两大类。由于液压式
The self-elevating tower crane is an economical and reasonable construction machine for solving vertical transportation and horizontal hoisting in the construction of high-rise buildings. It not only has the advantages of large lifting capacity, wide working area, good lifting performance, high work efficiency, small construction site, etc. It also has the characteristics of being able to rise with the increase of buildings. Therefore, it is widely used in the construction of large-scale industrial and civil and complex buildings. 1. Jacking Mechanism The jacking mechanism is an important device for jack-up tower cranes. It can be divided into two major categories: mechanical and hydraulic. Due to hydraulic