针对氟醚橡胶材质的唇形油封，基于多用途传动摩擦实验台，在考虑唇形油封不同过盈量及不同耐介质老化时间的情况下，对其进行变转速干摩擦试验，研究了耐介质老化时间、过盈量对油封安装主轴转矩、振动和摩擦磨损的影响。试验结果表明：在本试验选用的参数范围内，随着老化时间延长，主轴转矩随之降低，振动呈先减小后增大的趋势；随着过盈量的增大，主轴转矩、振动随之增大；老化时间越长，过盈量越低，油封磨损量越小。此外，随着耐介质老化时间增长，试件摩擦区域表面越光滑，溶胀现象越明显。

Based on a multi-purpose transmission friction test bench, a variable speed dry friction test was conducted on a lip shaped oil seal made of fluoroether rubber material, taking into account different interference amounts and different media aging times. The effects of media aging time and interference amounts on the torque, vibration, and friction wear of the oil seal installation spindle were studied. The test results show that within the range of parameters selected, with the extension of aging time, the spindle torque decreases, and the vibration decreases first and then increases; With the increase of interference, the torque and vibration of the spindle increase. Moreover, the longer the aging time, the lower the interference, and the smaller the wear amount of the oil seal. In addition, with the increase of aging time, the smoother the friction surface of the specimen, and the more obvious the swelling phenomenon.

TH 136

国家自然科学基金项目（面上项目，重点项目，重大项目）