| 摘要 |
PURPOSE:To obtain large reduction gear ratio with a simple structure by putting a planet gear, interlocked with two gears rotating in directions opposite to each other, in a revolution at slow speed and applying this to output. CONSTITUTION:A rotor 2 fixed to an input axis 1 is provided with an outer peripheral side gear 3 and an inner peripheral side gear 4. On the other hand, a rotor 5 provided with an outer peripheral side gear 6 and an inner peripheral side gear 7, is supported by means of a case 12 through a bearing 13. The rotors 2 and 5 are rotated in directions opposite to each other by means of a gear 11. A planet gear 10 is interlocked with inner peripheral gears 4 and 7 and further inserted with play in an output axis 8, therefore, the output axis 8 is rotated at a large reduction gear ratio by appropriately selecting the number of tooth for each gear. |
