“M”= 1 '模数。“Z1”= 40 '齿数。“Z2”= 20 '配对齿数。“Dmax”= “Df” + 2.5 * “M” '最外圆直径。“Alpha”= 20 '压力角。“Z2_”= if '配对齿数默认值。“D”= “M” * “Z1” '分度圆直径。“Db”= “D” * cos '基圆直径。“Hax”= 1 '齿顶高系数。“Cx”= 0.25 '顶隙系数。“Ha”= “Hax” * “M” '齿顶高。“Hf”= * “M” '齿根高。“Df”= “D” + 2 * “Hf” '齿根圆直径。“Da”= “D” - 2 * “Ha”+“Delta_Da” '齿顶圆直径。
