CPC G01N 19/02 (2013.01) [G01B 5/066 (2013.01); G01N 33/30 (2013.01)] | 10 Claims |
1. A device for measuring a frictional force and a film thickness of a lubricating oil film in different surface velocity directions, the device comprising a translation stage and a main shaft, wherein the translation stage is linearly movable under driving of a first driving device, the main shaft extends through the translation stage, a glass disc is fixed to an upper part of the main shaft, a lower part of the main shaft is driven by a second driving device to rotate, an arcuate guide rail is disposed on the translation stage, a rotary base is mounted to the arcuate guide rail and is movable along the arcuate guide rail, a loading system is mounted to the rotary base, a steel ball of the loading system and the glass disc are movable relative to each other, and a rotary bearing in the rotary base is configured to convert a frictional force generated from the relative movement to a pressure allowed to be collected by a pressure sensor on the rotary base.
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