| 摘要 |
PROBLEM TO BE SOLVED: To realize a high speed reduction compound planetary gear mechanism having a high degree of design freedom, reduced imbalance force, and reduced noise and vibration. SOLUTION: The high speed reduction compound planetary gear mechanism comprises an input shaft 2, an output shaft 3, a first planetary gear mechanism 4, and a second planetary gear mechanism 5. The first planetary gear mechanism 4 includes a first sun gear 6 with its center connected to the input shaft 2, a first internal gear 7, and a first planetary gear 8. A first spindle 9 for rotatably supporting the first planetary gear 8 is fixed to a first carrier 10, and the output shaft 3 is fixed to the center of the first carrier 10. The second planetary gear mechanism 5 includes a second sun gear 11 with its center connected to the input shaft 2, a second internal gear 12, and a second planetary gear 13. A second spindle 14 for rotatably supporting the secondary planetary gear 13 is fixed to a stationary frame, the first internal gear 7 and the second internal gear 12 are formed on an inner peripheral face of a common rotatable annular frame 16, and the annular frame 16 is rotatably attached to the input shaft 2. COPYRIGHT: (C)2009,JPO&INPIT |
