RV减速器传动特性分析

发布时间：2018-03-29 10:18

本文选题：RV减速器　切入点：误差分析模型　出处：《天津大学》2012年硕士论文

【摘要】：本文以一类含摆线轮的封闭式行星传动减速器（简称RV减速器）为对象，，针对其一、二级行星传动共用系杆的结构特点，开展了该机构的误差分析建模与虚拟样机仿真研究。全文主要研究成果如下： (1)针对RV传动机构的结构特点，基于作用线增量原理，分析了机构中各构件的几何原始误差对输出轴回转传动精度的影响规律，建立了计及构件原始误差与输出轴反馈误差的精度分析模型，揭示出反馈误差与构件原始误差的耦合关系，为该机构的精度分析与设计提供一种有效的方法。 (2)借助ABAQUS有限元软件，通过确定分析类型、设置接触条件、施加约束关系，构建了RV减速器刚柔耦合模型，该模型计及了齿轮、摆线轮等主要构件弹性变形，以及齿廓接触等非线性因素，为精确揭示该机构的力学性能提供技术支撑。 (3)以工程样机为例，构建虚拟样机模型，进行了机构的模态分析与动态仿真，获得主要传动部件的动态响应，其结果与理论计算值吻合较好；摆线轮与针齿的接触分析揭示这些构件之间接触位置、接触力、应力应变等分布规律，从而为摆线轮几何设计与修形研究提供参考。本文采用虚拟样机技术，围绕RV减速器开展的动力学建模、仿真及针齿与摆线轮接触特性分析，为深入开展该机构动力学特性的理论与实验研究奠定基础。
[Abstract]:In this paper, a kind of closed planetary transmission reducer (RV reducer) with cycloid wheel is taken as the object, aiming at the structural characteristics of the common tie bar of the first and second stage planetary transmission. The error analysis modeling and virtual prototype simulation of the mechanism are carried out. The main research results are as follows:. 1) according to the structural characteristics of RV transmission mechanism, based on the principle of action line increment, the influence of the original geometric error of each component of the mechanism on the accuracy of the output shaft rotary transmission is analyzed. A precision analysis model considering the original error of the component and the feedback error of the output shaft is established, and the coupling relationship between the feedback error and the original error of the component is revealed, which provides an effective method for the accuracy analysis and design of the mechanism. With the help of ABAQUS finite element software, the rigid flexible coupling model of RV reducer is constructed by determining the type of analysis, setting up contact conditions and imposing constraint relation. The model takes into account the elastic deformation of the main components such as gears and cycloid wheels. The nonlinear factors, such as tooth profile contact, provide technical support for revealing the mechanical properties of the mechanism accurately. Taking the engineering prototype as an example, the virtual prototype model is constructed, the modal analysis and dynamic simulation of the mechanism are carried out, and the dynamic response of the main transmission parts is obtained. The results are in good agreement with the theoretical calculation. The contact analysis of cycloid wheel and needle tooth reveals the distribution of contact position, contact force, stress and strain between these components, thus providing a reference for the geometric design and modification of cycloid wheel. In this paper, the dynamic modeling and simulation of RV reducer and the analysis of contact characteristics between needle teeth and cycloid wheel are carried out by using virtual prototyping technology, which lays a foundation for further theoretical and experimental research on the dynamic characteristics of the mechanism.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.46

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