枢轴-宝石轴承摩擦副磨损性能试验研究

摘要

根据枢轴—宝石轴承摩擦副的结构和材料特点，专门设计建立了磨损性能试验装置，利用试验装置分别从滑动速度、表面硬度、载荷和润滑油添加剂4个方面采用单因素影响试验法，从耐磨性能和减磨性能2个方面对枢轴—宝石轴承摩擦副的磨损性能进行了研究，以摩擦系数和磨斑直径作为评判依据。根据试验结果确定了影响枢轴—宝石轴承摩擦副摩擦磨损最为严重的滑动速度，由此研究获得了其耐磨损性能设计参数，延长了使用寿命。%According to the structure and characteristics of the material of the shaft-bearing, a test device for its abrasion perform-ance is especial y designed to carry out the test research on four aspects, that is, guide speed, surface hardness, load and lubrica-tion additives. By using the monofactor testing method, its wearability and ability to reduce the wear are tested taking the friction ratio and the diameter of the friction spot as the basis for judgment. Through the test, the guide speed that causes the worst damage is detected, and the wear ability parameter is obtained for the design work. The service life for the shaft-bearing is prolonged.