円筒歯車の曲げ負荷能力の向上に関する研究 : 第2報,左右非対称歯形歯車の曲げ負荷能力の向上(機械要素,潤滑,工作,生産管理など)

概要

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This study presents a method to enhance the bending load capacity of gear using different standard pressure angles in the front side and backside tooth profile. In this report, the calculations were performed for not only the maximum stress but also the stress amplitude from fillet to tooth root considering the gearing procedure. A larger backside standard pressure angle leads to a small tensile tooth root stress but a large compressive stress at the next or previous tooth root. As the result for the stress amplitude calculation, the increase in the backside standard pressure angle will decrease the stress amplitude at the tooth fillet except at the tooth root. Bending fatigue tests were performed for two types of normalized and induction-hardened gears to evaluate the enhancement in bending load capacity using a larger backside standard pressure angle. The standard pressure angles of thefront side/backside of the tooth of test gears were 20/20 deg. and 20/30 deg. The fatigue test results confirmed the significant increase in bending load capacity by the use of a larger backside pressure angle.
一般社団法人日本機械学会の論文
2003-03-25