V2EX ball screw

Ball Screw

定义 Definition

ball screw(滚珠丝杠/滚珠螺杆):一种将旋转运动高效转换为直线运动的机械传动元件。它在丝杠与螺母之间通过滚珠循环滚动来传递力与运动,特点是摩擦小、效率高、定位精度好,常用于数控机床、自动化设备、精密定位平台等。

发音 Pronunciation

/bl sku/

例句 Examples

The CNC machine uses a ball screw to move the table smoothly.
数控机床使用滚珠丝杠来让工作台平稳移动。

Because the ball screw has low friction and high efficiency, it can achieve precise positioning even under heavy loads.
由于滚珠丝杠摩擦小、效率高,即使在重载下也能实现精确定位。

词源 Etymology

ball(滚珠)+ screw(螺杆/丝杠)。该术语属于工程技术复合名词,字面意思是“带滚珠的螺杆机构”,强调其通过滚珠滚动而非滑动摩擦来传动,这是其高效率与高精度的关键来源。

相关词 Related Words

文学/著作示例 Literary & Notable Works

  • Machinery’s Handbook(《机械工程师手册》):在螺纹传动与精密传动章节中常讨论滚珠丝杠的选型、效率与精度指标。
  • Shigley’s Mechanical Engineering Design(《机械工程设计》):在机械传动与螺旋机构相关内容中会涉及类似的高效率螺旋传动概念,并常与传统丝杠对比。
  • CNC Programming Handbook / 机床与数控系统相关教材:在机床进给系统(feed drive)与定位精度部分常出现“ball screw”用于说明直线轴的传动结构。
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