S113013 超音波振動による歯車歯面の摩擦力減少と潤滑性向上に関する研究(第3報)([S11301]機械システムの要素技術と設計(1))

概要

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This study has proposed a method of friction reduction and lubricity improvement for meshed gears, which is based on ultrasonic oscillation. In recent years, the gear is used in ultimate environments as in a vacuum chamber. Thus, a new method of the friction reduction and the lubricity improvement is required instead of the lubricating oil. This paper reports experiments with meshed gears oscillated by ultrasonic actuator fixed on an end surface of the gear shaft. Strain gauges put on the fillet between the dedendum flank and the bottomland measured stress conditions in forward and reverse rotations when a deadweight gives a constant load to the tooth flank and the friction on the tooth flank was estimated from the difference of stress values between the forward and reverse rotations. The ultrasonic oscillation reduced the friction between tooth flanks by approximately 40% compared to no oscillation in the unlubricated condition.
一般社団法人日本機械学会の論文
2011-09-11