乏水条件下水润滑橡胶轴承摩擦特性分析

The Friction Behavior Analysis of Starved Waterlubricated Rubber Bearing

以水润滑橡胶轴承为研究对象,建立轴承供水条件分析的润滑模型,讨论乏水和充分供水条件下转速和载荷对水润滑膜膜厚的影响。结果表明:起初随着供水膜厚的增加,中心膜厚随之增加,但当其增加到一定程度后,中心膜厚不再随之变化,存在一个供水临界点;在水润滑条件下,不论是乏水还是充分供水,膜厚及最小膜厚随转速的增大而明显增大,随载荷增大而减小。

Water becomes a good application prospect lubricant for its low cost, energy saving, good safety and environment friendly characteristic. A bearing microscopic surface pitting lubrication model was established, the oil condition of it was introduced and the effects of the speed and the load on the film thickness were discussed.The result show that with the provided oil film thickness increases, the film thickness also increases. However, when it is added to a certain degree, the film thickness will no longer change, there exists a critical point. Under water-lubricated conditions, the film thickness and minimum film thickness are increased greatly with the increase of speed and decreased greatly with the increase of load in both staved and full oil conditions.