| 摘要 |
PURPOSE: A structure without the carrier of a low rate planetary gear having a self-locking function is provided to have an immediate self-locking function at a low rate by dividing planetary gears having different teeth numbers into two stages and rotatably installing the planetary gears at the center of each planetary gear. CONSTITUTION: A first sun gear(40) rotates with an input shaft(30). A fixed ring gear(70) arranges multiple first planetary gears(100) around the first sun gear to be engaged at a regular interval. The fixed ring gear is fixed to a housing(20). The fixed ring gear engages with the multiple first planetary gears. A second sun gear(50) is installed at the same input shaft with the first sun gear. A rotation ring gear(80) arranges multiple second planetary gears(110) around the second sun gear to be engaged at a regular interval. The rotation ring gear engages with the multiple second planetary gears. |
