利用齿面接触分析的两级摆线针轮减速器传动误差分析方法  

Transmission Error Analysis of Two Stage Cycloidal Pinwheel Mechanism Using Tooth Contact Analysis Method

作　　者：韩斌斌 宿月文 郭彩霞 HAN Binbin;SU Yuewen;GUO Caixia(Beijing Institute of Radio Metrology and Measurement,Beijing 100039,China;Shaanxi Key Laboratory of Advanced Manufacturing and Evaluation of Robot Key Components,Baoji University of Arts and Sciences,Baoji 721016,Shaanxi,China)

机构地区：[1]北京无线电计量测试研究所,北京100039 [2]宝鸡文理学院陕西省机器人关键零部件先进制造与评估省市共建重点实验室,陕西宝鸡721016

出　　处：《机械科学与技术》2024年第12期2032-2038,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：陕西省自然科学基础研究计划(2024JC-YBMS-262);陕西省2021年重点研发计划(2021GY-326)。

摘　　要：两级摆线针轮机构可在结构紧凑的前提下获得高减速比。为评估该型机构的传动性能,提出了一种新型两级摆线针轮减速器的摆线齿形设计参数式,经坐标转换以及摆线针轮啮合方程式,并通过齿面接触分析原理构建了空载时齿面接触方程组,进而求解得到传动误差。根据不同齿廓修形方法以及不同修形量的组合进行传动误差对比分析,结果表明复合修形比单一修形情况下,传动误差相对较小,而且正等距加正移距复合修形情况下传动误差最小。该理论可为新型两级摆线针轮机构的传动性能评估提供理论基础。High reduction ratio can be realized by the two-stage cycloidal pinwheel mechanism with compact structure.In order to evaluate the transmission performance,a special tooth profile design formula for cycloidal tooth profile is built for new two-stage cycloidal drive in this study.Tooth profile equations of two cycloidal gear are transformed into identical coordinate system and used to form expression describing mesh process between cycloidal gear and pins.Thus,the whole tooth contact equations are innovatively proposed based on unloaded tooth contact analysis method,and solved to obtain transmission error.Using different modification values and several profile modification methods,transmission errors of two-stage cycloidal pinwheel mechanism are calculated for comparative analysis.Results indicate that transmission error is relatively smaller in the case of compound modification than single modification,and the smallest in the case of compound modification,i.e.positive equidistance plus positive displacement.The proposed method can provide a theoretical basis for evaluating transmission performance of the new two-stage cycloidal pinwheel mechanism.

关 键 词：摆线针轮传动 齿面接触分析 传动误差 齿廓修形 

分 类 号：TH132.4[机械工程—机械制造及自动化]