桅杆式起重机及其回转关键技术研究

Research on Derrick Crane and its Key Technology of Slewing

桅杆式起重机结构紧凑、回转空间小、起重能力大,其起吊货物产生的倾覆力矩通过桅杆传递,使得回转轴承不再是主要受力构件。介绍了桅杆式起重机工作原理及回转关键技术,给出了回转分绳器的设计计算方法。

Derrick crane with compact structure,small slewing space and large lifting capacity.The overturning moment generated by the lifting of the cargo is transmitted through the derrick,so that the slewing bearing is no longer the main force component.The working principle and key slewing technology of derrick crane are introduced,and the design and calculation method of slewing rope splitter are given.