planetary gears

同根派生

Planetary gear systems are also used in many automatic transmissions.
行星齿轮组也同样用于许多汽车变速器中。
The bike chain drives a sun gear on the rear axle, which transmits power to planetary gears situated around it.
自行车的链条会驱动后轮轮轴上的太阳齿轮，将动力传送到四周的行星齿轮。
When the device detects acceleration, it sends a signal to a small electric servomotor that rotates a sleeve on the axle to shift the planetary gears.
当仪器侦测到轮子加速，就会将讯号传送到一个小型的电子伺服马达，马达会带动轮轴上的套筒，然后变换行星齿轮的位置。
The optimal objective of planetary gears can be achieved and the efficiency of design can also be raised by using this method.
实践结果表明，用本方法设计的行星齿轮机构不但达到了最优化目标，还可以大大提高设计效率。
This paper discusses the optimization design of the planetary gears taking the high efficiency light weight、compact size of planetary gears as target.
摘要以行星齿轮机构传动效率高、重量轻体积小等为目标，探讨行星齿轮机构的优化设计。