[答]一般有如下三种简便方法:一、滚印法此法见机械工人学习材料《工厂常用三角计算法》(机械工业出版社)第31页。这里不详细介绍。二、两模数法根据cosβ=m_n/m_s,只要测得m_n及m_s两个模数值,即可求算出β。m_n的求法可先测得齿高h,则m_n=h/2.25。计算结果按标准模数值圆整后,再用滚刀、插齿刀或标准齿轮啮合对比而后确定m_n值。m_s [A] There are generally three simple methods as follows: First, the method of roll printing law see mechanic learning materials “commonly used trigonometric calculation method” (Machinery Industry Press) 第 31 页. Not detailed here. Second, the two modulus method According to cosβ = m_n / m_s, as long as the measured m_n and m_s two modulus values, you can calculate the β. m_n can be measured first tooth height h, then m_n = h / 2.25. Calculated results based on the standard module value after rounding, and then hob, gear shaper or standard gear meshing comparison and then determine the value of m_n. m_s