• Transactions of the Korean Society of Mechanical Engineers
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• v.10 no.6
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• pp.870-875
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• 1986

In this study, full-rounded tip curve of rack and its mating fillet curve of pinion in Involute-circular arc composite tooth profile are derived. Mechanical characteristics are calculated analytically, i.e., Specific sliding, Nominal bending stress at working root circle and the Contact factor of the arc of contact in circular arc part to the arc of double contact. These characteristics compared with standard involute tooth profile are improved in circular arc part of composite tooth profile. To obtain more efficient composite tooth profile, we studied these characteristics with regard to the changes of unwound angle and radius of circualr arc. And a design method of composite tooth profile is suggested. Composite tooth profile are compared with standard involute tooth profile.

• Journal of the KSME
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• v.25 no.2
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• pp.153-157
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• 1985

치차의 마찰손실은 일반적으로 낮으나, 치면의 온도상승을 초래하여 마멸을 증대시키거나 치면의 강도를 저하시킨다. 이것은 결과적으로 치차의 강도(부하특성)에 직접적인 관계를 갖고 있기 때문에 마찰손실을 가능한 한 낮게 유지하여야 한다. 치차의 맞물림은 치면의 미끄름속도 미 끄름율, 곡율반경 및 하중이 맞물림중에 순간적으로 변하므로 해석이 간단하지 않다.