基于差分进化法的摆线轮修形技术研究

Research on Modification Technology of Cycloid Wheel Based on Differential Evolution Method

为了提高摆线针轮的传动性能,以短幅外摆线内侧等距曲线为齿廓曲线的摆线轮为研究对象,以提高整机承载能力为目的,对摆线轮的齿廓进行优化修形。在不确定修正方式和修正量的情况下,制定优化目标,选择约束条件,运用MATLAB软件编程,在所选取的优化区间内,利用移距加等距组合修形曲线拟合逼近转角修形曲线的方法,得出最接近的共轭曲线的优化方式;利用差分进化法进行迭代,计算出最佳修形量;对优化后摆线轮的初始啮合间隙、变形量进行分析。研究表明,该优化方法可以较好地满足摆线针轮的修形要求。

To improve the transmission performance of the cycloid pin wheel, the cycloid wheel with the profile curve of the outer side of the short outer wobble is taken as research object, and the tooth profile of the cycloid wheel is optimized for the purpose of improving the bearing capacity of the whole machine. In the case of uncertain correction method and correction amount, the optimization target is set and the constraint condition is selected. The optimization method of the closest conjugate curve is obtained by using shifting and equidistant combination approximate to the corner modification optimization method in the selected optimization interval on based MATLAB. The iterated differential evolution method is used to calculate the optimal shape modified value. The initial meshing gap and deformation of the optimized cycloid wheel are analyzed. The research result shows that the optimization method can better meet the modification requirements of the cycloid pinwheel.