V2EX wrist pin

Wrist Pin

释义 Definition

wrist pin(也叫 piston pin / gudgeon pin):活塞销。发动机中连接活塞(piston)连杆小头(connecting rod)的金属圆柱销,使活塞的往复运动能够带动连杆摆动。

发音 Pronunciation (IPA)

/rst pn/

例句 Examples

The mechanic replaced the worn wrist pin.
技师更换了磨损的活塞销。

If the wrist pin is improperly lubricated, it can seize and cause severe engine damage under high load.
如果活塞销润滑不当,在高负荷下可能会咬死并造成严重的发动机损坏。

词源 Etymology

wrist 原指“手腕”,在机械语境里常用来比喻“铰接/转动的关节部位”;pin 是“销、销钉”。合起来的 wrist pin 字面意思是“关节处的销”,形象地指活塞与连杆之间起“关节”作用的那根销。该部件在英式英语中常见别称 gudgeon pin

相关词 Related Words

文学与著作 Literary Works

  • Internal Combustion Engine Fundamentals(John B. Heywood)在发动机结构与活塞连杆机构章节中讨论活塞销(wrist pin)的功能与受力。
  • Automotive Engines: Diagnosis, Repair, and Rebuilding(Tim Gilles)在发动机检修与装配部分提到活塞销的检查与更换。
  • Machinery’s Handbook(多版)在“销、配合与材料”相关条目中可见与销类零件(含类似用途的销)有关的工程说明。
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