An Optimum Design of Planetary Reduction Gear Using Rollers as Gear Teeth

Abstract

It is hard to design high quality reduction gears composed of rollers as gear teeth, because the reduced rotation has irregularities inevitably. In this report, the optimum design of roller tooth gears for power transmission was investigated. According to this design, the K-H-V type planetary reduction gears of the reduction ratio of 1/15 were produced on trial. The following performances were obtained. (1) Irregularities of reduced rotation were less than 0.028 degrees. (2) Efficiency of power transmission was 80-90%. According to these results, it is possible to put this reduction gears to practical use.