自适应微摩擦综合测试仪的研制与纳米润滑实验研究

Design of self adaptive micro tribology multiple measuring test rig and experimental studies on nano lubrication

描述了作者研制的自适应微摩擦综合测试仪的基本原理。采用多用途自适应浮动结构、精密刀口杠杆加载结构和摩擦力精密测量系统，可精确地加载和测量ｍＮ量级的摩擦力。研究纳米膜在各种润滑方式下的摩擦学性能，同时采用相对光强光干涉法，检测纳米级的润滑膜厚以及润滑状态的变化。以１０＃标准粘度液作润滑剂，分别用面接触浮动润滑副和点接触浮动润滑副作实验，研究了其摩擦因数和润滑膜厚度随载荷、速度和运动方式（点接触纯滑动和纯滚动）的变化规律，并验证了仪器的实验性能。

The basic principle and design of the self adaptive micro tribology multiple measuring test rig have been described. In the rig, by adopting widely used self adaptive floating contact system, precise loading by lever and precise friction force measuring system, the friction force in milli Newton scale can be obtained and the tribology characteristics of nano films in the different contact statues are studied. Using relative optical intensity technology, the film thickness in nanometer scale is measured simultaneously. The lubrication characteristics of 10 # standard liquid of viscosity have been investigated with the test rig. The variant trends of friction coefficient and film thickness with load, sliding velocity and lubrication ways (pure sliding in surface contact, pure rolling and pure sliding in point contact) have been studied. The experiments show that the test rig meets the design requirements.