Influence Research of Velocity on Lubricating Properties of Sector Cavity Multi-pad Hydrostatic Thrust Bearing

摘要：

Lubricating characteristics of sector cavity multi-pad hydrostatic thrust bearing are affected significantly by velocity, poor design can cause lubricant film rupture and dry friction, even leading to failure of hydrostatic bearing tribology. For this problem, the Computational Fluid Dynamics and the lubrication theory have been used to analyze velocity characteristics of the parameters such as cavity pressure of oil, oil cavity flow and film thickness, to gain relationship between velocity and lubricating properties of sector cavity multi-pad hydrostatic thrust bearing, avoiding the occurrence of hydrostatic bearing tribological failure. It is shown that along with the speed of the worktable increasing, the flow of lubricant oil caused by inertia and centrifugal force become larger, the flow of efflux from the oil cavity also become larger, causing the pressure drop of the oil cavity, the thinning of the film thickness, the occurrence of film rupture and dry friction and failure of hydrostatic bearing tribology. The study provides the basic data for the hydrostatic: thrust bearing design, the lubrication and the experiment, implements of the prediction of the hydrostatic thrust bearing lubrication velocity characteristics, and reaches the purpose of reducing economic loss.

关键词： velocity characteristic sector cavity multi-pad hydrostatic thrust bearing lubricating properties

作者: Yu Xiaodong Xiang Hongjun Lou Xiaozhong Meng Xiuli Jiang Hui Ji Weidong Yang Changqing Sun Xianzhu

作者单位: Harbin University of Science and Technology Harbin Heilongjiang,China Qiqihar Heavy CNC Equipment Corp.Ltd,Qiqihar Heilongjiang,China Heilongjiang College of Indusry and Commerce Technology,Harbin Heilongjiang,China

会议类型: 国际会议

会议名称: 2010 International Conference on Material and Manufacturing Technology(2010材料与制造技术国际会议 ICMMT2010)

会议地点: 重庆

会议语种:英文

页码: 1104-1108

在线出版日期: 2010-09-17（万方平台首次上网日期，不代表论文的发表时间）