基于参数化有限元模型的斜齿行星传动内啮合特性分析  

Parametric Finite Element Model Based Meshing Analysis of Internal Pairs in Helical Planetary Gear Transmission

作　　者：汪建[1] 卞世元 焦阳[1] 张俊[1] 

机构地区：[1]安徽工业大学机械工程学院,安徽马鞍山243032

出　　处：《安徽工业大学学报（自然科学版）》2015年第1期22-26,共5页Journal of Anhui University of Technology（Natural Science）

基　　金：国家自然科学基金项目(51375013;50905122);安徽省自然科学基金项目(1208085ME64)

摘　　要：为揭示斜齿行星传动内啮合齿轮副的啮合特性,采用参数化建模方法和自底向上的建模策略,相继构建斜齿行星轮系的完整啮合和简化啮合三维有限元模型。通过设置内啮合接触对并施加恰当约束条件,分析传动中内啮合齿轮副的应力/应变,进而分析内齿圈轮缘厚度对啮合特性的影响。结果表明,各均布行星轮的应力状况不尽相同,且呈现出边缘接触现象,可通过修形予以改善;增大内齿圈轮缘厚度可降低内齿圈及各行星轮的最大应力/应变,提高齿轮强度。A parametric three dimensional finite element model for helical planetary gear transmission（HPGT）was proposed to reveal meshing characteristics of the system. By adopting the‘bottom to top＇modeling strategy,a complete three dimensional finite element model as well as a simplified model was established with proper contact pair and boundary condition settings. The stress/strain distributions of the internal mesh pairs were obtained to show an uneven stress distribution property among different meshing pairs. The occurrence of‘edge contact＇was observed, which can be eliminated by micro-geometry tooth modifications. The effect of rim thickness of ring gear was then investigated. The results show that with the increment of rim thickness, the maximum stresses/strains of the ring gear and planets decrease accordingly, leading to the improvement of gear strength.

关 键 词：斜齿行星传动 内啮合 啮合特性 轮缘厚度 有限元 

分 类 号：TH132.4[机械工程—机械制造及自动化]