多边形效应在机械原理中是指:链轮每转过一个齿,链速就从大到小,再从小到大变化一次,同时伴随着链条忽上忽下颤抖且由于接触部分是多边形的部分,由于多边形的存在而引起的链传动的运动不均匀性称为链传动的多边形效应。 如何减小多边形效应:增加齿数Z,减小轮齿的节距P,降低齿轮速度v。
分析了多边形效应对同步带直线传动移动误差的影响,得出误差计算的表达式。
The influence of polygon effect on the displacement error of timing belt linear transmission was analyzed, and an error expression was obtained.
而在自动人行道的链传动系统中多边形效应引起的纵向振动是振动和噪声的主要来源。
Furthermore the vibration and noise mainly comes from the polygonal action which generates the longitudinal vibration of chains.
计算及试验研究表明,新型内-外复合啮合齿形链的多边形效应明显小于外啮合齿形链。
The calculation and test show that the polygon effect of the new silent chain with inner-outer meshing is less than that of the silent chain with outer meshing.
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