摘要
在摆线针轮传动的轮齿接触分析(ToothContactAnalysis,TCA)模型中,通常将误差值设为一个定值,易造成计算结果不合理,且计算过程中常出现计算不收敛等问题。对此,建立了包含修形、加工误差等多因素综合作用下的摆线针轮传动误差分析模型;在对啮合点矢量方程分析后,提出了一种解决数值不收敛等问题的方法,即在求得的摆线轮和针齿上纵横坐标相等的点中,找到法向量相等的啮合点。对回转体误差形式分析后,提出了一种解决计算结果不合理的方法,即令摆线轮周节误差、摆线轮齿廓径向跳动误差和针齿中心圆半径误差在公差带内呈周期性变化。以RV-80E减速器为试验对象,对比试验结果,验证了理论模型的正确性;研究各误差对传动误差的影响,开展了各误差灵敏度分析。结果表明,针齿半径误差和针齿与针齿壳间隙综合作用下的法向间隙是影响传动误差的主要因素。
In response to the problem that the error value is usually set as a constant value in the tooth contact analysis(TCA)model of cycloidal needle tooth transmission,which makes the calculation results unrea-sonable,and the calculation does not converge in the calculation process,an analysis model of cycloidal pin-wheel transmission error including multi-factors such as shaping modification and processing error is estab-lished.After analyzing the vector equation of the meshing point,a method to solve the problem of numerical non-convergence is proposed,that is,to find the meshing point with equal normal vector in the obtained point with equal ordinate and abscissa on the cycloid wheel and the needle tooth.After analyzing the form of the rotary body error,a method to solve the unreasonable calculation results is proposed,that is,the cycloid circumferen-tial joint error,the cycloid tooth profile radial runout error and the needle tooth center circle radius error change periodically in the tolerance band.RV-80E reducer is taken as the test object,and the correctness of the theoret-ical model is verified by comparing the test results.The influence of each error on the transmission error is stud-ied,and the sensitivity analysis of each error is carried out.The results show that the needle tooth radius error and the normal clearance under the comprehensive action of the needle tooth and the needle tooth shell gap are the important factors affecting the transmission error.
作者
黄岳磊
张迎辉
何卫东
Huang Yuelei;Zhang Yinghui;He Weidong(School of Mechanical Engineering,Dalian Jiaotong University,Dalian 116028,China)
出处
《机械传动》
北大核心
2024年第3期10-17,共8页
Journal of Mechanical Transmission
基金
国家重点研发计划项目(2017YFB1300700)。
关键词
轮齿接触分析
几何接触
法向间隙
灵敏度
Tooth contact analysis
Geometric contact
Normal gap
Sensitivity
