<研究論文>ねじ歯車歯面の接触状態

概要

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Although the meshing of teeth of crossed helical gears theoretically takes place at a point, the contact point extends over a small ellipse due to elastic deformation under loading. Hence the contact stress between the tooth surfaces is comparatively high. Furthermore, the sliding velocity on the tooth surfaces is higher than for other kinds of gears. For these reasons, crossed helical gears are able to carry only very small loads. To guard against the danger of surface failures, it is necessary to have a means of calculating the contact stress states. In this study, details of the variations of the contact ellipse on an imaginary rack of crossed helical gears were observed.
東京都立航空工業高等専門学校の論文