| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high-speed-reduction reduction gear wherein flexibility on a design when determining a reduction ratio of the reduction gear utilizing a double planetary gear mechanism. <P>SOLUTION: In this reduction gear including two planetary gear mechanisms, a module of a sun gear 2, a planetary gear 3, and an internal gear 4 constituting a first planetary gear mechanism of the two planetary gear mechanisms, and a module of a sun gear 5, a planetary gear 6, and an internal gear 7 constituting a second planetary gear mechanism of the two planetary gear mechanisms are different modules, and reference circle diameters of the internal gear 4 of the first planetary gear mechanism of the tow planetary gear mechanisms and the internal gear 7 of the second planetary gear mechanism of the two planetary gear mechanisms are made to be equal. <P>COPYRIGHT: (C)2012,JPO&INPIT |
