摆线针轮传动偏心距及承载能力的优化分析

The Optimization Analysis of Cycloidal Pinwheel Tranmission of Eccentricity and Bearing Capacity

针对现有摆线针轮传动偏心距选取的缺点与不足,根据RV减速器摆线针轮传动中短幅系数与偏心距的关系,建立了以获取最大承载能力为目标的偏心距优化模型,并探讨了一种优化设计数值求解方法,获得了优化偏心距值。然后又创建了摆线针轮传动多体接触的有限元模型,并对偏心距优化前后的接触性能进行了计算机模拟仿真分析,结果表明偏心距优化后的摆线轮与针齿之间的接触应力降低了12.6%左右,进一步论证了优化后的摆线针轮传动系统具有更大的承载能力。这为摆线针轮的性能优化设计提供了一定的参考价值。

Considering the shortcomings and deficiencies of the eccentricity's selection of the existing cycloidal reducer drive, in oder to obtain the optimum offest value, it based on the relation of short amplitude coefficient and eccentricity in cycloidal pinwheel tranmission of RV reducer, set up an optimization model of the eccentricity with the goal of obtaining the maximum bearing capacity, and discussed a numerical solution method for optimal design. And then established the finite element model of the multi body contact of cycloidal pinwheel tranmission, and carried the computer simulation analysis of the contact performance before and after the optimization of eccentricity.The anslysis result show that compared with the customary, the optimized eccentricity's contact stress between the cycloid and the pinwheel decreases about 12.6%, which further demonstrated that the optimized cycloidal pinwheel tranmission system has a greater load bearing capacity. These have a certain theoretical guidance value for the optimization of the cycloidal pinwheel tranmission system.