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1.1 一般介绍 GB11365—89《锥齿轮和准双曲面齿轮精度》中所指的锥齿轮(分度曲面为圆锥面的齿轮)主要用于一般机械行业的相交轴(两轴线相交)的齿轮传动;准双曲面齿轮一般用于汽车行业的相错轴(两轴线不平行,也不相交)的齿轮传动。 锥齿轮按齿线形状分为直齿、斜齿和曲线齿锥齿轮,直齿锥齿轮的齿线为分度圆锥面的直母线,斜齿锥齿轮其产形轮上的齿线是不通过锥顶的直线。曲线齿锥齿轮其产形轮的齿线是某种平面曲线,该齿轮又分为零度齿锥齿轮(中点螺旋角为零度的曲线齿);弧齿锥齿轮(产形轮的齿线为圆弧齿);摆线齿锥齿轮(产形轮的齿线为摆线齿);准渐开线锥齿轮(产形轮的齿线近似于渐开线)。
1.1 General introduction GB11365-89 “bevel gear and hypoid gear precision” refers to the bevel gear (indexing surface of the cone-shaped gear) is mainly used for the general machinery industry intersecting the axis (two axes intersect) gear transmission; Hypoid gears are generally used in the automotive industry, the wrong axis (two axes are not parallel, nor intersect) gear drive. Bevel gear according to the shape of the tooth is divided into straight teeth, helical teeth and curved bevel gear, straight bevel gear teeth for the straight conical straight generatrix, bevel bevel gears on its production wheel is not through Cone straight line. Curvilinear bevel gear its production wheel gear line is a certain kind of plane curve, the gear is divided into zero-degree bevel gear (mid-point spiral angle of zero-degree curve tooth); spiral bevel gear Arc teeth); cycloid bevel gear (production wheel gear for the cycloidal teeth); quasi-involute bevel gear (production wheel gear line similar to the involute).