双圆弧齿轮成品齿形常规测量分析与公法线长度计算

当前双圆弧齿轮齿形常规测量中,普遍采用齿根圆直径测量法。以公法线长度变动、分度圆弦齿厚和测量齿高、固定弦齿厚等的测量手段相配合,进行校验测量,不仅可控制工艺过程的切齿深度,同时可控制滚刀齿廓的正确性,保证齿形质量。详述了双圆弧齿轮凸齿成品齿形公法线长度测量计算的实用方法,并列出计算实例,可供从事机械制造的工人和技术人员参考。

Measure and Calculation of the Base Tangent Length on Double Circular-Arc Gears,

By gauging the tooth profile of double circular-arc gears, the root circle diameter method is commonly adopted today. When the measurement is combined with measures for gauging the base tangent length, the reference circle chordal tooth thickness and chordal addendum and.the constant chord, both the radial feeds for tooth cutting and the accuracy of the hob tooth profile can be controlled, so the product quality can be assured. Practical method of.gauging and calculation of the base tangent length is described in detail.