表面処理・歯形及び潤滑油がねじ歯車の負荷特性に及ぼす影響

概要

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Crossed helical gears are engaged geometrically in a point contact between two tooth surfaces, but this contacting point changes to an elliptic contact due to elastic deformation of tooth surfaces under applied load. Therefore the contacting area of two tooth surfaces is small, so that the Hertzian pressure on the tooth surface is high. Since the sliding speed is also very high, the limiting load for scoring is low and the amount of wear is comparatively high. Although crossed helical gears can transmit only light load, they have many advantageous features : e. g., crossed helical gears are easy to produce and mounting error has no effect on engagement. Therefore, in practice, on of the major problems is finding a way to increase the load-carrying capacity of crossed helical gears. In this study we examined the limiting load for scoring, specific wear and friction loss of crossed helical gears with various kinds of surface treatments. We found that the influences of surface treatment and lubricating oil on the limiting load for scoring are very strong, which is useful in practical applications, particularly from the viewpoint of power transmission.
一般社団法人日本機械学会の論文
1996-08-25