关键词: 变速比传动, 活齿机构, 齿廓模型, 构型

Abstract:

A concept of motion integration was presented to improve the efficiency and  to  reduce the space of series mechanisms Combining with  movable tooth gear and noncircular gear theory, the motion integration   mechanism  with  roller movable tooth was proposed. Firstly, a eccentric circle was selected as the wave generator.A tooth profile model of the inner ring was built under any transmission ratio, with continuous transmission conditions discussed. Then a mathematical relationship in the maximal number of movable teeth, the number of period of transmission ratio and the number of inner ring teeth were  studied. When the number of movable teeth was less than two, a parallel movable tooth gear was constructed to realize any speed ratio. Finally, the design process of a motion integration mechanism with roller movable tooth was given to achieve the transmission ratio of series noncircular gear system, which laid  the foundation for applying the new gear,and  guided the research of other movable tooth gears.

Key words: variable speed transmission；movable tooth mechanism, tooth profile model；configuration