Abstract

In this paper a computer-aided design package is developed for analyzing cycloid drives with machining tolerance. It is found that both the backlash and the torque ripple are periodic functions of the input crank angle. The frequency is equal to the number of teeth on the ring gear times the input shaft frequency. Also, simple and practical formulas for design synthesis of these types of transmissions are developed with the consideration of tolerance, drive parameters (gear ratio, normalized tooth height and pitch diameter) and performance indices (backlash and torque ripple).

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