关键词: 参数分析, 滚动活齿传动, 几何设计, 凸轮激波

Abstract: The problems of parameter selection and geometrical design of the movable rolling tooth transmission with cam actuating are studied. The comprehensive influence of tooth profile parameters, such as transmission ratio, theoretic cam half-axis length, and radius of movable rolling tooth, on tooth profile property of the inner gear is analyzed, and the value selection relationship among tooth profile parameters is established under the condition of no interference appearance on inner gear’ profile. According to the transmission principle and structural characteristics analysis of the movable-tooth-frame, the calculation formulae and selection conditions of the geometrical parameters of movable-tooth-frame for avoiding parts movement interference and meeting the assembly requirement and transmission continuity are proposed. On the basis of the above analysis, the steps for geometrical parameter design of the movable rolling tooth transmission with cam actuating are presented, and the geometrical design process of this kind of transmission equipment is illustrated by means of an example. It’s shown that the design course of the movable rolling tooth transmission with cam actuating can be simplified, and satisfied parameter combination can be obtained on the basis of the value selection relationship of tooth profile parameters, the selection conditions of movable-tooth-frame parameters as well as the parameter design steps presented.

Key words: Cam actuating, Geometrical design, Movable rolling tooth transmission, Parameter analysis