螺旋齿轮、圆柱斜齿轮 Helical gear
分析齿轮主要参数，提出用测量跨棒（）和公法线长度计算斜齿圆柱齿轮螺旋角的测绘方法，并推导出螺旋角的计算公式。
In this paper calculating method of lead angle of helical gear by measuring span length of length bar and base tangent length is put forward and lead angle calculating formula is deducel.
利用直齿齿轮泵的困油容积变化公式，求出了斜齿齿轮泵的困油容积变化公式，得到了斜齿齿轮泵不发生困油的螺旋角。
According to the volume oil formula of the straight gear pump, the volume oil formula of the helical gear pump is got and the helix Angle no trapping is found.
本文主要对这种新型传动齿轮——斜航式法向圆弧螺旋锥齿轮的误差与变异的关系和精度检测进行了较为深入的理论研究。
In this dissertation, the relationship between the errors and variations for the loxodrome normal circular-arc spiral bevel gear (LNCSBG) is deeply studied.
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