采用NURBS曲线的钢球减速器的型线设计研究  

Research on Profile Design of Cycloid Steel Ball Reducer using NURBS Curve

作　　者：王娟娟 平雪良 周忠良 蒋路明 WANG Juanjuan;PING Xueliang;ZHOU Zhongliang;JIANG Luming(Jiangsu Province Key Laboratory of Advanced Food Manufacturing Equipment and Technology,School of Mechanical Engineering,Jiangnan University,Wuxi 214122,Jiangsu,China;Senlimao(Wuxi)Intelligent Technology Co.,Ltd.,Wuxi 214176,Jiangsu,China)

机构地区：[1]江南大学机械工程学院江苏省食品先进制造装备技术重点实验室,江苏无锡214122 [2]森力茂(无锡)智能科技有限公司,江苏无锡214176

出　　处：《机械科学与技术》2021年第12期1849-1855,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：江苏省研究生科研与实践创新计划项目(KYCX191879)。

摘　　要：摆线钢球减速器在摆线盘型线设计与优化过程中对型线的自由度与可控性要求越来越高,由此本文提出了将NURBS曲线应用到减速器摆线盘的型线设计过程中,深入研究基于NURBS的摆线型线,通过对已知摆线型线进行采样,获取样本点,反求控制点、权因子、节点矢量,得到符合精度要求的拟合型线,并以此型线完成虚拟样机与试验样机的设计,仿真与实验结果显示NURBS曲线表示方法可以保证摆线钢球减速器的传动精度,为进一步提高摆线盘型线设计的灵活性与局部可调整性奠定了基础,并验证了减速器样机的传动误差和噪音等性能明显优于传统的行星减速器。Higher requirements for the degree of freedom and controllability of the profile in the process of designing and optimizing the profile of the cycloidal disc have been proposed.Therefore,the NURBS curve is proposed to be applied in the profile design process of the reducer cycloid disc in this study.After in-depth study of the cycloid profile using NURBS,by sampling the known cycloid profile,obtaining sample points,inversely finding the control points,weight factors and node vectors to obtain a fitted profile that meets the accuracy requirements,the design of virtual prototype and test prototype are completed with this profile.Simulation and experimental results show that the NURBS curve representation method can ensure the transmission accuracy of the cycloid steel ball reducer,which has laid a foundation for further improving the flexibility and local adjustability of the cycloid plate design.It is verified that the transmission error and noise performance of the reducer prototype is obviously superior to the traditional planetary reducers.

关 键 词：摆线钢球减速器 型线设计 NURBS曲线 性能 

分 类 号：TH132[机械工程—机械制造及自动化]