歯面温度を考慮して計算したEHL油膜厚さに基づくトランスミッション歯車の歯面強度評価に関する研究 : 潤滑油の供給温度,供給量,粘度等級および合成油の影響(機械要素,潤滑,工作,生産管理など)

概要

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The purpose of this study is to clarify the influence of lubricating conditions, such as temperature and amount of oil supplied, viscosity grade, and chemical composition of base stock, on the tooth surface strength of carburized gears. Experiments were carried out to measure the tooth surface strength and the tooth surface temperature during operation by changing the lubricating conditions. The results obtained were discussed on the basis of EHL film thickness calculated with consideration for measured tooth surface temperature. It was found that tooth surface strength under various lubricating conditions was describable using a new parameter Pnmean λ^<-0.3>, which is composed of the Hertzian pressure P_<Hmean> and the specific film thickness λ. An empirical formula that quantitatively expressed changes in the tooth surface strength under the various conditions was obtained.
2005-06-25