水润滑橡胶轴承摩擦性能及润滑状态的实验研究

Experimental Study on Friction Property and Lubrication State of Water Lubricated Rubber-alloy Bearing

为了研究载荷、转速及其交互作用对水润滑轴承摩擦性能的影响,在MPV-20D屏显式摩擦磨损实验机上进行实验,测定轴承在清水、含沙量为0.5%和3%三种工况下,不同转速和载荷时的摩擦因数,并对实验结果进行等重复双因素方差分析。结果显示,转速和载荷均对轴承摩擦性能有着显著影响,其中以转速最为明显;含沙量为0.5%和3%的工况中交互作用对轴承摩擦性能的影响也较为显著,在相关轴承的设计和研究中应当充分考虑这几个因素的影响;此外,还根据实验数据绘制了Streibeck曲线,以研究水润滑橡胶轴承润滑状态的变化情况。

In order to study the influence of load, speed and its interaction on the water--lubri- cated bearing friction performance, a series of experiments on the MPV--20D screen type friction wear testing machine are carried out, the friction coefficient at different speeds and loads in the conditions of water, sediment concentration of 0. 5% and 3% are measured and the experimental results in repeated two--factor analysis of variance is carried out. The results show that, both the speed and the load have a significant influence on the performance of the bearing friction, while the speed of which the most ob- vious. Sediment concentration for the impact on the performance of the bearing friction of 0. 5% and 3% of the working conditions are more significant in the interaction, it should be fully consider the im- pact of these factors in the design and research related to the bearing. In addition, the Streibeck curve is drawn based on experimental data to study changes of lubrication state in water lubricated rubber bearing.