V2EX planet gear

Planet Gear

Definition|释义

行星齿轮:行星齿轮传动(行星齿轮组)中的一种齿轮,绕着中心的太阳齿轮转动,同时自身也旋转;常与内齿圈(环形齿轮)一起工作,用于实现紧凑结构下的减速、增速或变速。也常被称为 planetary gear(行星齿轮)(同类用法)。

Pronunciation|发音(IPA)

/plnt r/

Examples|例句

The technician replaced a worn planet gear in the transmission.
技术员更换了变速器里一枚磨损的行星齿轮。

Because the planet gears share the load, the gearbox can be smaller yet still handle high torque.
由于行星齿轮能分担载荷,这种齿轮箱可以做得更小,却仍能承受很高的扭矩。

Etymology|词源

planet 原意是“行星”,来自希腊语 planētēs,有“游走者、漫游者”之意;在机械里借用为“绕中心运转的部件”。gear 指“齿轮/传动装置”。合起来 planet gear 字面就是“像行星那样绕着中心转的齿轮”,形象描述其运动方式。

Related Words|相关词汇

In Literature|文学/著作中的出现

  • Machinery’s Handbook(《机械工程师手册》):在齿轮与传动章节中常讨论行星齿轮/行星齿轮组的结构与应用。
  • Shigley’s Mechanical Engineering Design(《希格利机械工程设计》):在机械传动设计内容中涉及行星齿轮系统与载荷分配。
  • Fundamentals of Machine Component Design(《机器零部件设计基础》):在齿轮传动与变速机构相关章节中出现行星齿轮(planet gear)的术语与示意。
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