一种适用于多自由度球面运动轴承的动力学分析

Dynamic Analysis of a Multi-degree-of-freedom Spherical Moving Bearing

随着社会的发展,在工业生产中对多自由度驱动装置需求的增加使对相应的高性能多自由度轴承的需求也在增多,所以其研究具有重要的现实意义。本文研究的是一种适用于多自由度球面运动装置的润滑轴承,其结构包括一完整的球面内壳和一非完整的球面外壳,在内外壳之间注入润滑油,有效降低多自由度运动方向上的摩擦系数,延长轴承使用寿命。同时,利用多体动力学软件进行轴承动态性能的仿真分析,结果验证了分析设计的正确性和可行性。

With the development of society,the increasing demand for multi-degree-of-freedom drive devices in industrial production also leads to the corresponding increasing demand for high-performance multi-degree-offreedom bearings,so its research has important practical significance.In this paper,a kind of lubrication bearing suitable for multi-degree-of-freedom spherical motion devices is researched,whose structure includes a complete spherical inner shell and an incomplete spherical outer shell.The lubrication oil is injected between the inner shell to effectively reduce the friction coefficient along the directions of multi-degree-of-freedom motion and prolong the service life of the bearing.At the same time,the multi-body dynamics software is used to simulate the dynamic performance of the bearing,and the results verify the correctness and feasibility of the analysis and design.