| 摘要 |
The present invention provides a series of simple planetary gear reducer. Size maximization of the reducers which form the series is not required while the components such as an internal gear are not required, and the output torque is increased. The series of the simple planetary gear reducer (100) with different reduction ratios is provided with the following components: an inner gear (122) which is internally engaged with a planetary gear (116), a planetary pin (120) which rotatably supports the planetary gear, and a gear carrier (124) which supports the planetary pin and is synchronous with an orbital component of the planetary gear, wherein a first auxiliary series is provided. The first auxiliary series is provided with bearings (134,138) which support the gear carrier outside the planetary gear in a radius direction of the gear carrier. The inner rings of the bearings (134,138) are formed integrally with the gear carrier. A housing (142) which is provided with the inner gear is shared. Furthermore the supporting positions of a sun gear (114), the planetary gear and the planetary pin in the wheel carrier are varied according to the reduction ratio. |
