V2EX non-backdrivable

Non-backdrivable

Definition / 释义

不可反驱动的;不可回驱的(机械/传动):指一种传动机构在输出端受力时,不能(或很难)把力“倒传”回输入端并使输入端反向转动。常用于描述蜗杆蜗轮、丝杠、减速器、某些齿轮箱等具有“自锁/防回转”特性的结构。(在特定条件下仍可能因润滑、磨损或振动而被回驱。)

Pronunciation / 发音

/nn bkdravbl/

Examples / 例句

The gearbox is non-backdrivable, so the load won’t spin the motor.
这个减速箱是不可反驱动的,所以负载不会带着电机倒转。

A non-backdrivable lead screw can hold position under load, which improves safety in vertical lifting systems.
不可反驱动的丝杠能在载荷作用下保持位置,从而提高垂直升降系统的安全性。

Etymology / 词源

由前缀 non-(“不、非”)+ backdrive(“反向驱动/回驱”,back“向后”+ drive“驱动”)+ 形容词后缀 -able(“能够……的”)构成,字面意思就是“不能被回驱的”。该词多见于机械工程与自动化领域,用来强调传动的防回转/自锁属性。

Related ords / 相关词

Literary Works / 文学与典籍用例

  • Machinery’s Handbook(《机械师手册》)
  • Shigley’s Mechanical Engineering Design(《希格利机械工程设计》)
  • Marks’ Standard Handbook for Mechanical Engineers(《马克斯机械工程师标准手册》)
  • Design of Machinery(《机械设计原理》)
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