在外三角花键的测试中,有时图纸上给出的是任意圆上的弧齿厚,需要换算成便于测量的跨棒距 M 值,或需将量棒直径为 d_(p1)时的跨棒距 M_1换算成量棒直径为 d_(p2)时的跨棒距 M_2等,下面介绍这类换算方法。一、已知量棒直径 d_(p1)求跨棒距 M_1此项计算以三角花键理论内径 d_2为基准,由图中的几何关系得到: Outside the outer spline test, sometimes given on the drawings is arc radius on an arbitrary circle, need to be converted to facilitate the measurement of cross-bar M value, or the rod diameter d_ (p1) when the cross-bar From M_1 converted into rod diameter d_ (p2) when the spans M_2 and so on, the following describes the conversion method. First, the known rod diameter d_ (p1) find the cross-rod M_1 This calculation is based on the triangular spline diameter d_2 basis, the geometry of the figure obtained: