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本文阐述了一种镶嵌自润滑滑动轴承的性能及特点。考察了载荷和速度等可控因素对这种轴承摩擦系数的影响。试验表明,这种轴承在所用的试验条件下,其摩擦特性基本上不受载荷(P或比压p)和滑动速度(v)的影响。通过实验得到的p-v曲线表明,它符合极限pv值等于常数的规律,並通过统计分析得到了这种轴承在不同可靠度(R)下的极限pv值(当R=50％时,其极限pv值为6.87×10~7Pa·m/min)。还讨论了镶嵌轴承的失稳机理。 为了便于比较,同时介绍了锡青铜轴承的特性试验,结果表明镶嵌轴承在工作速度v<0.32m/s时(本试验条件下)承载能力高于锡青铜轴承的,说明这种轴承适用于低速重载条件下工作。
This article describes the performance and features of a self-lubricating sliding bearing. The effects of controllable factors such as load and velocity on the friction coefficient of the bearing were investigated. Tests have shown that the friction characteristics of such bearings are essentially unaffected by loading (P or specific pressure p) and sliding speed (v) under the test conditions used. The experimental pv curve shows that it meets the rule that the limit pv equals to the constant, and the limit pv value of the bearing under different reliability (R) is obtained through statistical analysis (when R = 50%, the limit pv Value of 6.87 × 10 ~ 7Pa · m / min). Also discussed the instability mechanism of inlaid bearings. For the sake of comparison, the characteristic test of tin bronze bearing is introduced at the same time. The results show that the bearing capacity of the inlay bearing is higher than that of tin bronze bearing when operating speed v <0.32m / s (under the test condition), which indicates that the bearing is suitable for low speed Work under heavy conditions.