研究一种体积小、重量轻、结构简单的微型滚子减速器 .利用摩擦学的基本理论和等效机构理论 ,对提出的微型滚子减速器进行运动设计 ,给出了微型滚子减速器的等效机构及其传动比计算公式 .结果表明 ,传动比的大小与滚子的数目和直径有关 .三排三点接触式有利于传动比的调整和承载能力的提高 ,是一种理想的结构形式 . A kind of miniature roller reducer with small size, light weight and simple structure is studied.Based on the basic theory of tribology and the theory of equivalent mechanism, the proposed micro-roller reducer is designed with motion and the micro-roller reducer Of the equivalent mechanism and its transmission ratio calculation formula.The results show that the size of the transmission ratio and the number of rollers and the diameter of the three rows of three-point contact is conducive to the adjustment of transmission ratio and carrying capacity, is an ideal structure type .