歯数差零の転位インボリュート内歯車の隅肉干渉限界および無頂隙限界について

概要

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The trochoidal fillet at the bottom of the tooth space of the internal gear generated by a pinion cutter should not interfere with the tooth tip of the mating pinion, and the trochoidal fillet at the bottom of the tooth space of the spur pinion generated by the pinion cutter or a rack cutter should not interfere with the tooth tip of the mating internal gear, and the minimum radial distance between the crest of a tooth and the bottom of the tooth space of mating teeth should not be less than zero. In this paper, the analytical study on the fillet interference limit and the non-top clearance limit in the profile shifted involute internal gears having no difference in number of teeth between the internal gear and the pinion and intermeshing with an appropriate center distance and with a contact ratio of greater than 1 is treated, and a pack of the limit diagrams to avoid the fillet interference and the non-top clearance caused by the engagement of abovementioned profile shifted involute internal gears is constructed with respect to the cutter pressure angle ac = 20. In conclusion, the author shows a numerical example with a view to facilitate the practical utilization of these limit diagrams.
信州大学工学部の論文