基于Hertz接触理论的齿轮接触分析  

Research of gear contact based on Hertz contact theory

作　　者：胡夏夏[1] 宋斌斌[1] 戴小霞[1] 刘晓曼[1] 

机构地区：[1]浙江工业大学特种装备制造与先进加工技术教育部重点实验室,浙江杭州310014

出　　处：《浙江工业大学学报》2016年第1期19-22,共4页Journal of Zhejiang University of Technology

摘　　要：由于齿轮啮合过程中齿廓接触点曲率半径变化以及单双啮合交替的存在,而引起齿面载荷分布不均匀和冲击的问题,根据Hertz接触原理对接触模型和接触应力进行了研究.分析提取啮合线上不同啮合点的综合曲率半径,利用包络线绘制一条连续的曲率曲线,并根据该曲线生成特征曲面;利用有限元方法分别对齿轮接触、特征曲面与平板之间接触进行了接触应力分析;分析结果显示两种接触模型的接触应力分布相似度比较高,简化后的齿轮接触理论模型可为齿轮接触应力实验分析提供参考依据.The problems of uneven load distribution and impact are caused by a curvature radius variation and a single-double meshing area in the process of gear meshing.Contact models and contact stresses are studied based on the Hertz contact theory.Synthetical curvature radii in different meshing positions are obtained after analysis,and by using an envelope line a continuous curve is drawn,and a characteristic surface based on the curve is generated.A gear contact model and a curved surface-plane contact model are analyzed through Finite Element method.The results indicate that the stress distributions of the two contact models are similar,the simplified gear contact model may provide a reference basis for gear contact stress experiment analysis.

关 键 词：Hertz接触原理 综合曲率半径 有限元 接触应力 

分 类 号：TH132.413[机械工程—机械制造及自动化]