一、前言传动链的动态精度是指它的起始件至终端件在运动过程中的实际传动比和理想传动比之偏差,一般都折算到终端传动件上以角度秒、微弧度,或者在一定直径(节径)上的长度偏差微米来表示。在生产实践中有多种传动链,但综合起来是两种,即简单传动链,它只有两个传动件组成;复杂传动链,它有多个不同类型的传动件组成。由于制造每个传动件时需要 I. INTRODUCTION The dynamic accuracy of the transmission chain refers to the deviation of the actual transmission ratio and the ideal transmission ratio from the starting part to the terminal part during the movement, and is usually converted to the terminal transmission part at the angle of second, micro-radian, or at A certain diameter (pitch diameter) on the length of deviation micron to represent. There are a variety of drive chains in production practice, but in summary there are two types, a simple drive chain consisting of only two drive components and a complex drive chain consisting of several different types of drive components. As needed to make each drive