一、前言在纺织、造纸、橡胶和制药等机械的传动系统中,常常要对某一转速实行无级变速,以满足其特定的工作需要。目前,常用的机械式无级变速器有三种:齿链式、多盘式和锥轮摩擦式。前两种其结构已经成熟, I. INTRODUCTION In the transmission system of machinery such as textile, paper making, rubber and pharmacy, it is often necessary to implement a continuously variable speed change to a certain speed to meet its specific work needs. Currently, there are three commonly used mechanical continuously variable transmission: tooth chain, multi disc and cone wheel friction. The first two of its structure has matured,