117 コンケーブコニカルギヤのかみ合い率

概要

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The contact between tooth surfaces of a pair of conical involute gears is point contact, so the load carrying capacity is generally small. The point of contact between tooth surfaces locates in the plane of contact. The contact ratio is obtained as a pair of gear mating in the plane of contact, and this is called the normal contact ratio. Concave conical gear is developed in order to overcome the weak point of the conical involute gear. The contact between tooth surface of Concave conical gears is point contact theoretically, but it becomes a line contact under the load. For this reason, in order to define an equivalent axial contact ratio, which is equivalent to the axial contact ratio of the helical gears, a curved plane of action was newly introduced. In this paper, the contact ratio of Concave conical gears is presented as the sum of the normal contact ratio and the equivalent axial contact ratio.
社団法人日本機械学会の論文
2003-04-18