顶部驱动钻井装置中旋转头设计

摘要

现有的顶部驱动装置中的旋转头主要有单负荷通道和双负荷通道2种传递形式。分析了2种结构形式的优缺点，采用回转支承和芯轴结构，设计了新的旋转头，具有单负荷通道的简单结构，又延续了双负荷通道的传递形式，能有效延长了主轴的使用寿命。%The existing rotating heads of top drive drilling system are divided into single load path type and dual load path type.After analyzing the advantages and disadvantages of the two types of rotating head,a new type of rotating head is reasonable designed by adopting slewing bearing and mandrel.The new rotating head used dual load path but possessed simple structure,which can prolong the service life of the main shaft of the top drive drilling system.