| 摘要 |
PURPOSE: A planetary gear module of a motor transmission for an electric bicycle is provided to reduce part manufacturing costs by manufacturing carriers with various manufacturing methods. CONSTITUTION: A planetary gear module of a motor transmission for an electric bicycle comprises a first carrier(110), a second carrier(120), multiple planetary gears(130), and fixing pins(140). A stator shaft insertion boss is protruded at the center of the first carrier to insert a stator shaft. The first carrier has multiple first gear installation parts. The second carrier has second gear installation parts at positions corresponding to the first gear installation parts of the first carrier. The planetary gears are interposed between the first and second gear installation parts of the first and second carriers. The fixing pins rotatably fix the planetary gears on the first and second gear installation parts. |
