平歯車の遠心潤滑に関する研究 : 第2報, 歯元応力に及ぼす冷却穴の影響

概要

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We have recently proposed a new centrifugal lubrication method in which oil is injected through a hole drilled on the tooth crest of a spur gear. To adapt the method for wide face width spur gears, we set up a cooling hole parallel to the tooth trace on the center line of the tooth profile. The results of numerical analyses have been demonstrated that the recommended setting position of the hole is that where the hole inscribes to the root circle on the center line of the tooth profile; the addendum modification coefficient and rim thickness of the gear should be not less than zero and be not less than five times the module respectively. In such a spur gear, an increase in maximum tensile root fillet stress on the active flank side due to the hole of one module in diameter is less than 10% of the stress of the gear with no hole.
一般社団法人日本機械学会の論文
1999-04-25