| 摘要 |
<p>The epicyclic gear mechanism has a single fixed shaft. A series of compound gear trains surround the single fixed shaft, the shaft being common to the series of compound gear trains. Each compound gear train includes a rotatable cage with at least two planet gears of compound form on the cage and rotatable relative to the cage. A stationary gear is associated with one gear of the compound planet gear. An output gear is operably associated with the other gear of the compound planet gear. The output gear is rotatable on the fixed shaft relative to the cage and connected to a gear or an input of a successive compound gear train. Each successive gear train in the series provides a stepwise increase in output speed. A final output defines a gear operably associated with one gear of the last compound planet gear of the last compound gear train of the series. The final output gear is rotatable around the fixed shaft and attachable to an output device.</p> |
