用公法线测量并近似计算蜗轮齿厚

With common normal line measure and approximately calculate gear thickness of worn wheel

分析了用公法线测量蜗轮齿厚的理论依据,从而推导出跨齿数及公法线长度的近似计算公式,由此来确定蜗轮的模数和齿厚。

The theoretical basis is analyzed of measuring gear thickness by means of common normal line method.And in this way the approximate formula of pitch number and cotillon normal line is deduced to decide gear modulus and thick- ness.