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一、前言回转支承装置(以下简称回转装置)是广泛应用于大型机械中水平旋转部分的一种通用装置,在挖掘机、起重机等建筑机械及其他机械中经常用来连接可旋转的上车部分和相对固定的下车部分,以达到使用目的。该装置除完成上车绕回转中心轴作水平回转运动的作用之外,还可以承受由上车传来的全部垂直载荷、水平载荷及由重心偏移或外力矩作用产生的倾覆力矩。过去大家对这种装置的内部结构已作过大量的研究,我国已将其中应用最广泛的交叉滚
I. Introduction Rotary support device (hereinafter referred to as rotary device) is widely used in large-scale machinery in the horizontal part of a rotating device commonly used in excavators, cranes and other construction machinery and other machinery used to connect the rotating part of the car And a relatively fixed off the part, in order to achieve the purpose. In addition to the completion of the car on the revolving around the central axis for horizontal rotation of the role, but also can withstand all the vertical load from the car, the horizontal load and by the center of gravity offset or external torque generated overturning moment. In the past, great efforts have been made on the internal structure of such devices. China has put in place the most widely used cross-roll