滚动轴承部件缺陷对轴承可靠性的影响试验

Effect of Rolling Bearing Component Defects on Bearing Reliability

滚动轴承运行的可靠性决定着旋转机械的健康状况及安全性,因此对滚动轴承进行可靠性分析和寿命预测十分关键。就滚动轴承可靠性分析和寿命预测试验方法展开研究,利用轴承寿命强化试验机对轴承进行失效测试,以此为基础分析影响轴承可靠性的影响因素,得出导致轴承快速失效的主要因素是润滑状况与内圈磨损。并且,提出这类短时失效轴承故障主要特征表现在温度及振动参数的变化,据此提出了相应的监测参数和方法,避免旋转机械因此类轴承故障引发安全事故。

The reliability of rolling bearings determines the health and safety of rotating machinery. Therefore,reliability analysis and life prediction of rolling bearings are the most critical links. The reliability analysis and life prediction test methods of rolling bearings were studied. The bearing failure test was carried out by using the bearing life strengthening test machine. Based on this,the influencing factors of bearing reliability were analyzed. It was concluded that the main factors leading to the rapid failure of bearings were lubrication condition and inner ring wear. Moreover, the main characteristics of this kind of short-term failure bearing fault were the changes of temperature and vibration parameters. Accordingly, the corresponding monitoring parameters and methods were put forward to avoid the safety accidents caused by such bearing fault of rotating machinery.