考虑曲柄轴承及输出轴销轴的摆线针轮减速器传动误差分析  

Transmission error analysis of cycloidal reducers considering crank bearings and output shaft pins

作　　者：夏啸天 韩炬 XIA Xiaotian;HAN Ju(College of Mechanical Engineering,North China University of Science and Technology,Tangshan 063210,China)

机构地区：[1]华北理工大学机械工程学院,唐山063210

出　　处：《机械传动》2025年第1期11-19,共9页Journal of Mechanical Transmission

基　　金：河北省自然科学基金面上项目(E2019209153)。

摘　　要：【目的】传动误差是摆线针轮减速器设计中的关键性能指标。现有研究通常忽略曲柄轴承和输出轴销轴设计参数对传动误差的影响。为此,提出了一种基于运动学和力学分析的传动误差计算方法,为摆线针轮减速器的设计优化与性能提升提供依据。【方法】首先,结合摆线针轮机构的瞬心运动轨迹和摆线轮齿与针齿的啮合区间,确定了摆线轮齿与针齿的啮合点运动轨迹,进而明确了曲柄轴承和输出轴销轴分布圆半径的设计范围;其次,建立了曲柄轴承和输出轴销轴的接触力分析模型,计算了曲柄轴承和输出轴销轴分布圆半径对曲柄轴承和输出轴销轴受力的影响;最后,使用仿真软件Masta分析了曲柄轴承和输出轴销轴分布圆半径对摆线针轮减速器传动误差的影响。【结果】结果表明,在曲柄轴承和输出轴销轴分布圆半径的设计范围内,曲柄轴承和输出轴销轴分布圆半径越大,摆线针轮减速器传动误差越小,曲柄轴承和输出轴销轴的受力越大。研究可为国产摆线针轮减速器的设计和性能优化提供参考。[Objective]The transmission error is a critical performance indicator in the design of cycloidal pin wheel reducers.The influence of design parameters for crank bearings and output shaft pins on this error is frequently neglected in existing research.To address the issue,a method for calculating transmission error based on the kinematic and mechanical analysis was introduced,thereby offering theoretical foundation for the optimization of design and the enhancement of performance in cycloidal pinwheel reducers.[Methods]Firstly,the motion locus of the meshing point between cycloidal gear teeth and pin teeth was obtained based on the instantaneous motion locus of the cycloidal pin gear mechanism and the meshing interval between them.Subsequently,the design range for the distribution circle radius of crank bearing and output shaft pin was defined.A contact force analysis model for the crank bearing and the output pin was established,and their respective force influences were calculated.Finally,by Masta software,the influence of distribution circle radius on transmission error of cycloidal pinion reducers was analyzed.[Results]The results show that within the design range for distribution circle radius of the crank bearing and the output shaft pin,the larger values result in smaller transmission errors but greater forces exerted on these components.This study provides valuable insights for designing and optimizing domestic cycloidal reducers.

关 键 词：传动误差 曲柄轴承 输出轴销轴 摆线针轮减速器 

分 类 号：TH132[机械工程—机械制造及自动化]