Abstract
Numerical analysis of grease elastohydrodynamic Lubrication for Cycloid Drive, calculate the minimum film thickness value of meshing process and Compared with the experience formula, verify the mathematical model correctness. The average radius of cycloid gear lubrication state as the judgment basis, the effects of rotational speeds，load and rheological parameter on EHL of grease were analyzed. Results show that as speed goes up, the greater the film thickness and pressure spike, and the pressure spike moves toward inlet; As load goes up ,the contact width increase and the pressure spike moves toward outlet, the film thickness decrease less evident; As rheological parameter goes up , the greater the film thickness and pressure spike, and the pressure spike moves toward outlet. Discusses the effect of short amplitude coefficient for lubrication, as short amplitude coefficient decrease, the lubrication performance are improvement.
Key words
Cycloid Drive Grease Lubrication Numerical Analysis Ostwald
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SUN Zhang-dong ZHU Cai-chao LIU Huai-ju LIU Ming-yong GU Zong-lin.
Numerical Analysis of Elastohydrodynamic Lubrication for Cycloid Drive[J]. Journal of Vibration and Shock, 2014, 33(23): 195-199
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