動力伝達用歯車の設計理論 : 第2報,設計条件と軸受荷重変動が零となる接触点の軌跡(機械要素,潤滑,工作,生産管理など)

概要

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A path of contact of gears for power transmission in this series of papers is assumed to be designed under the following design conditions that it has (1) A constant gear ratio under a given disposition of two axes, (2) No variation of bearing loads which means that it is a straight line coinciding with the contact normal, (3) A pair of smooth tooth surfaces around the design point, (4) A pair of teeth with contact ratio required and (5) Equal strengths of bearing and tooth on both drive and coast sides. This second paper clarifies that a path of contact under the design conditions (1) and (2) is expressed by 5 unknown variables which are determined by giving the design point and the inclination angle of the path of contact in this designing method and as the result, they include 3 independent variables for bevel and hypoid gears and 2 for crossed helical, worm and cylindrical gears, which will be chosen to satisfy other conditions (3), (4) and (5).
2004-02-25