Abstract
The transmission ratio of a cycloidal drive with one internal-external gear pair increases as the difference in numbers of theeth of these gears decrease. For an internal external gear pair with involute tooth profile, the difference between their theeth numbers cannot be lower than a certain limit because of tooth tip interference. In this paper, a study has been made to examine the possibility of lowering this difference as much as possible, by choosing appropriate value for the distance between the axes of the two gears, along with adjusting the addendum modification coefficients. First, some theoretical aspects and some results on numerical simulation are presented. Then, two case studies concerning the use of these kind of gears for building cycloidal gear mechanisms will be discussed.
Published Version
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