三角形尖齿花键在分度圆上的中径,一般采用量棒法间接测量M值,然后用实际的M值去和理论计算出的M值相比较,从而判断实际花键中径的合格与否,此法简便可靠。但是,在生产实践中各工厂所采用的M值计算公式不尽统一,形式多样,且其计算结果相差甚大,为了达到确保产品质量,提高工效的目的,有必要认真研究这些公式,从中优选出最准确、最实用、形式最简单的最佳公式。 The diameter of the triangular spline spline on the indexing circle is generally measured indirectly by measuring the value of M using the rod method and then compared with the value of M calculated by the actual value of M to determine the actual diameter of the spline Whether this method is simple and reliable. However, in the production practice, the M values ​​used by various factories are not uniform, in various forms, and the calculated results vary greatly. Therefore, in order to ensure product quality and improve work efficiency, it is necessary to carefully study these formulas and select from them The most accurate, most practical, the most simple form of the best formula.