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A new approach to overcome and eliminate the polygon effect in chain drives is discussed in this paper. Tooth shape of chain drive in parallel motion is determined by the envelope theory. Sprocket and chain turn together on the last point of their line of action to realize chain transmission with constant pitch or with non-constant pitch, The article puts forward a new method, "envelope-path" method, to correct the tooth shape mentioned. During the chain transmission the former joint moves along circular... A new approach to overcome and eliminate the polygon effect in chain drives is discussed in this paper. Tooth shape of chain drive in parallel motion is determined by the envelope theory. Sprocket and chain turn together on the last point of their line of action to realize chain transmission with constant pitch or with non-constant pitch, The article puts forward a new method, "envelope-path" method, to correct the tooth shape mentioned. During the chain transmission the former joint moves along circular are, the latter has a parallel motion in order to eliminate fully the polygon effect of chain drives. Finally the article introduces several circumstances which affect the design of chain drives. 本文讨论了链传动中克服和消除多边形效应的新途径。利用包络原理,求出平动时链传动的齿形。传动中链轮齿和链节齿在最后啮合点一道旋转,实现变节距或定节距传动。並提出了用“包络—轨迹”对平动齿形进行修正,传动中链节体的前铰链沿圆弧运动,后铰链作平动,完全消除链传动中的多边形效应。最后提出了对结构设计产生影响的几种啮合情况。 This paper discusses transmission characteristic of corrected tooth chain designed by "envelope-path" method, and this article also puts forward the improvement of the method according to correction tooth design in order to basically eliminate the polygon effect in chain drives. 本文讨论用“包络一轨迹”法设计的修正齿形链的传动特性,并提出了完善齿形修正设计的方法,基本上实现消除链传动申的“多边形效应”。 In this paper,for a ballast cleaning machine,the polygon effect of drived chain is developed to expound the settling mechanism of the straight section of centrifugal sieves,and the formulas of the actual relative sliding velocity and the theoretical relative sliding velocity and the theoretical relative sliding velocity and their mating relation are obtained,Moreover,a theoretical formula of settling probability density is extracted,and with the help of integrating by computer, the settling probability... In this paper,for a ballast cleaning machine,the polygon effect of drived chain is developed to expound the settling mechanism of the straight section of centrifugal sieves,and the formulas of the actual relative sliding velocity and the theoretical relative sliding velocity and the theoretical relative sliding velocity and their mating relation are obtained,Moreover,a theoretical formula of settling probability density is extracted,and with the help of integrating by computer, the settling probability is obtained.Finally,the main factors which effect the settling probability are analysed.By means of the method expounded in this paper,centrifugal cleaning machines with high settling quality and efficiency can be designed. 本文应用链传动的多边形效应阐明道碴清筛机上离心筛直线段的筛分机理,得出了实际和理论相对滑动速度的公式及其匹配关系,导出了透筛概率密度的理论公式,并通过计算机积分得到透筛概率,最后对影响透筛概率的主要因素进行了分析。利用本文的方法可能动地设计出筛分质量优良和筛分效率很高的离心筛。
polygon effects
多边形效应
To sum up,the research results of the paper dies down "polygon effects" of roller chain drive ,increase super-speed steady of roller chain,lowers its noise,improves its drive quantity,obtains the expected research results and completes the research mission of the paper. 综上所述,本课题所作研究减弱了滚子链传动的“多边形效应”、提高了滚子链的高速平稳性、降低了噪声、改善了其传动质量,达到了预期研究效果,较好的完成了课题的研究任务。 短句来源 相似匹配句对
The effects of G. 而G. 短句来源 The effects of N and P were strong. 不同营养障碍使铃重有不同程度的降低 ,其中以 N、P营养影响最大 ; 短句来源 Reentrant Polygon Olipping 凹多边形裁剪 短句来源 
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