代渐开线磨齿法的代用基圆位置参数决定及近似齿形误差的性质

本文中提出了一种新的代用基圆位置参数决定方法,并证明在代渐开线磨齿法中,代用基圆渐开线仅具有二个独立位置参数。此方法不仅计算简便,便于生产现场采用,并能予先保证所得近似齿形误差的特性。

利用图解方法求解复杂滑移线场

介绍两种求解复杂滑移线场的图解法——四点共圆法和渐开线法，论述了求解基本原理及作图方法．

人字门底枢承座的设计方法研究

底枢承座是人字门运转的关键零部件,不仅起到载荷传递作用,还承接作为底止水与侧向刚止水过渡连接。因具有加工困难、安装复杂等特点,而被广泛关注。本文从理论上对承座止水设计时常用的三种方法:对渐开线法、多段圆弧法以及单一圆弧法进行一一推导。并结合制造工艺,通过工程实例验证,对三种设计方法的优缺点进行比较分析,找出承座的最优设计方法。为船闸底枢承座止水设计提供参考和理论依据。

Analysis of a load application point in spline coupling teeth

The objective of this paper is to investigate the position of the resultant force in involute spline coupling teeth due to the contact pressure distribution for both ideal and misaligned conditions. In general, spline coupling teeth are in contact all along the involute profile and the load is far from uniform along the contact line. Theoretical models available in publications consider the resultant contact force as it is applied at the pitch diameter, and this study aims to evaluate the error introduced within the confines of a common approximation environment. This analysis is carried out through using finite element method （FEM） models, considering spline couplings in both ideal and misaligned conditions. Results show that the differences between the load application diameter and pitch diameter are not very obvious in both ideal and misaligned conditions; however, this ap- proximation becomes more important for the calculation of the tooth stiffness.