【摘要】 本文提出了一种链传动的等效机构模型，可用于精确计算链传动的瞬时速比，从而为改善链传动性能的进一步研究提供了一个较好的基础。更多还原

【Abstract】 In this paper a equivalent mechanism of chain drives was presented,and using it instant transmitting ratio of chain drives may be calculated accurately,so a solid base was supplied for advanccd study about improvement of quality of chain drives.更多还原