摘要
针对传统算法未考虑摆线轮实际运动形式导致结果与实际不符的问题,以RV减速器中摆线针轮副为研究对象,提出一种考虑周向间隙的摆线针轮承载接触分析方法。基于公转与自转坐标系,确定最先接触齿对相对位置,建立周向间隙几何分析模型;根据转化机构法与坐标变换原理,将周向间隙作为啮合间隙,计算待啮合点位置;应用变形协调条件、赫兹接触理论、扭矩平衡方程,建立周向间隙下的摆线针轮承载接触分析模型;分析不同输入转角下的啮合齿数、啮合力、接触应力和传动误差。结果表明,啮合齿数、传动误差呈现周期性变化,啮合力和接触应力在摆线轮齿廓曲线凹凸过渡点处产生突变,全周期下的最大啮合力和最大接触应力大于初始位置,因此该方法为摆线针轮副的承载传动特性分析提供理论基础。
Aiming at the problem that the traditional algorithm does not consider the actual motion form of the cycloidal wheel,the results are inconsistent with the reality,taking cycloid drive in RV reducer as the experimental research object,the load tooth contact analysis method for cycloid drive considering circumferential clearance was proposed.Based on the revolution and rotation coordinates,confirm the relative position of the first contact tooth pair,the geometric analysis model of circumferential clearance is established.According to the transformation mechanism method and coordinate transformation principle,the circumferential clearance is taken as the meshing clearance,calculate the position of contact point.The load tooth contact analysis model of cycloid drive is established by using deformation coordination condition,nonlinear contact stiffness and torque balance equation.The number of meshing teeth,meshing force,contact stress and transmission error under different input angles are solved.The results show that:The number of meshing teeth and transmission error change periodically,and the meshing force and contact stress change abruptly at the convex and convex transition point of cycloidal gear profile curve.The maximum meshing force and contact stress in the whole cycle are greater than the initial position.Therefore,this method provides a theoretical basis for the analysis of the bearing transmission characteristics of cycloidal pin wheel.
作者
周士冬
韩振华
石万凯
单文桃
刘昶
ZHOU Shidong;HAN Zhenhua;SHI Wankai;SHAN Wentao;LIU Chang(School of Mechanical Engineering,Jiangsu University of Technology,Changzhou 213001,China;State Key Laboratory of Mechanical Transmissions,Chongqing University,Chongqing 400044,China;不详)
出处
《组合机床与自动化加工技术》
北大核心
2023年第11期163-168,173,共7页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金项目(52005229)
江苏省基础研究计划项目(BK20201055)
江苏省青蓝工程中青年学术带头人项目(KYQ20004)
常州市领军型创新人才引进培育项目(CQ20210119)
江苏理工学院研究生实践创新计划项目(XSJCX21_59)。
关键词
RV减速器
摆线针轮
变形协调
承载接触分析
周向间隙
RV reducer
cycloid pin gear transmission
deformation coordination
load tooth contact analysis
circumferential clearance
