摆线钢球行星传动定位精度研究  

Research of Positioning Accuracy of the Cycloid Ball Planetary Transmission

作　　者：苏慧[1] 杨坤[1] 于清焕 侯田博文 

机构地区：[1]保定职业技术学院 [2]燕山大学机械工程学院

出　　处：《机械传动》2017年第7期29-32,共4页Journal of Mechanical Transmission

基　　金：国家重点基础研究发展计划(973计划)课题子课题:2013CB733003

摘　　要：针对摆线钢球行星传动啮合点弹性变形对传动性能的影响,提出利用啮合点变形求解定位精度的方法,并分析了耦合定位精度产生的机理。建立啮合副力学模型,利用啮合点刚度通过转矩平衡方程推导出啮合副的滞后转角,应用啮合副滞后转角推出机构耦合定位精度,分析了结构参数对耦合定位精度的影响。研究结果表明,传动机构滞后转角曲线呈周期性波动,机构耦合滞后转角主要来源于减速啮合副,幅值变化主要受等速啮合副影响,结构参数变化对耦合定位精度影响较明显。研究结果为摆线钢球行星传动的传动性能与定位精度的提高提供理论支持。In view of the influence of elastic deformation of ball reducer gear meshing point on the transmission performance,a method for locating the positioning accuracy by using the stiffness coefficient of the mesh point is proposed. The mechanism of the coupling positioning accuracy is analyzed. The mechanical model of the meshing pair is established,the delay angle of meshing pair is derived by using the torque balance equation. The position precision of the meshing pair is introduced by applying the backward rotation angle of meshing. The influence of structural parameters on the accuracy of positioning is analyzed. The results show that the hysteresis curve of the transmission mechanism is periodic fluctuation. The mechanism behind the angle of the main source of the reduction of the gear mesh. The amplitude variation is mainly influenced by the constant velocity engagement. The change of structure parameters has obvious influence on the accuracy of the positioning. The theoretical support for the transmission performance improvement and structural optimization of the planetary transmission of the steel ball is provided by research results.

关 键 词：摆线钢球行星传动 刚度系数 接触变形 滞后转角 定位精度 

分 类 号：TH132.4[机械工程—机械制造及自动化]