Effects of Shaft Offset on Vibration and Tooth Contact Area Based on High-Speed Thermography Monitoring under Hypoid Gear Meshing Conditions

Abstract

In this paper, the temperature distribution of the meshing tooth surface of hypoid gears was obtained using infrared thermography. In addition, to investigate the effect of the offset amount on the vibration characteristics, the vibration during gear driving was measured using an acceleration pickup, and the change in vibration owing to the offset amount and the driving conditions were quantitatively evaluated from the correlation with the thermal image. Furthermore, we attempted to extract the tooth contact area using thermography by quantifying the actual tooth contact area through a tooth contact test using paint and comparing it with the tooth-surface temperature distribution.