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基圆盘与导轨间滑移对双盘式渐开线测量仪测量精度的影响 被引量:3

Analysis of slippage between discs and rail in involute measuring instrument with double-discs
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摘要 由于在双盘式渐开线测量仪中,基圆盘与导轨间的滑移是影响测量精度的重要因素,而有效控制轮轨间的摩擦力可解决基圆盘滑移,本文分别采用传动绳与传动带驱动基圆盘滚动,分析了在不同测量力情况下基圆盘与导轨间的摩擦力及其对滑移的影响。结果显示,当采用传动绳驱动测量力为0.7N及采用传动带驱动测量力为0.2N,基圆盘顺时针转动测量渐开线时,轮轨间的摩擦力分别为0.02N与0.07N,此时基圆盘滑移对渐开线测量影响可以忽略。另外,增加基圆盘组件的配重也能够有效减小基圆盘滑移,此时基圆盘顺时针与逆时针转动测得的渐开线齿形的差异为0.06μm。 The slippage between discs and rail is one of important factors for the measurement accuracy of an involute.However,control of frictions effectively can modify the slippage of discs.In the paper,frictions between discs and rail are analyzed respectively when a cord and a belt are used to drive the discs to roll.According to the analysis and experiment,it shows that if measuring forces are 0.7 N and 0.2 N and the base discs is drived by the cord and belt,frictions are 0.02 N and 0.07 N respectively,for the base disc clockwise rolled;where the effect of the slippages of based discs on the involute measurement can be ignored.Moreover,the slippage can also be reduced by increasing the weight of base disc groups,and measurement difference of involute is 0.06 μm when the rolling directions of the base discs are different.
出处 《光学精密工程》 EI CAS CSCD 北大核心 2011年第10期2450-2456,共7页 Optics and Precision Engineering
基金 国家自然科学基金资助项目(No.50905026) 国家863高技术研究发展计划资助项目(No.2008AA042506)
关键词 双盘式渐开线测量仪 基圆盘 滑移 involute measuring instrument with double-discs base disc slippage
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