船用交错轴变厚齿轮啮合性能的研究  

Mesh Characteristics for Marine Beveloid Gears with Crossed Axes

作　　者：宋朝省[1] 朱才朝[1] 刘立斌[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《西安交通大学学报》2012年第11期64-68,105,共6页Journal of Xi'an Jiaotong University

基　　金：国家自然科学基金资助项目(51175523);中央高校基本科研业务费资助项目(CDJXS11111138);国家"十二五科技支撑计划"资助项目(2011BAF09B07)

摘　　要：基于空间齿轮啮合原理和有限单元法,分别建立了船用交错轴变厚齿轮齿面模型及啮合模型.在承载和安装误差的作用下,对船用交错轴变厚齿轮传动啮合特性进行了分析,研究了中心距误差、轴交角误差和大齿轮轴向位置误差对啮合印痕、最大接触压力、传动误差及啮合刚度的影响规律.结果表明,中心距和轴交角误差使得啮合印痕发生明显的偏移,造成最大接触压力及传动误差的峰峰值增加,且中心距及轴交角的正负误差对啮合刚度的影响呈相反的趋势,但大齿轮轴向位置的误差对啮合特性影响较小.通过加载啮合特性试验,验证了理论啮合分析结果的正确性,这对船用交错轴变厚齿轮传动匹配设计具有重要的指导意义.Following spatial gearing theory and finite element theory,the mathematical gear tooth model and the mesh model of marine crossed beveloid gears are constructed.Considering load and misalignments,the mesh characteristics of beveloid gears are analyzed.The effects of offset error,shaft angle error and gear axial position error on mesh characteristics,which consists of contact pattern,the maximum contact pressure,transmission error and mesh stiffness are discussed.The results show that the existing offset error and shaft angle error make the contact pattern move to the toe or heel obviously,the maximum contact pressure and the peak-peak value of the transmission error increase.The relations between misalignments and mesh stiffness tend to be opposite for positive and negative errors,and the gear axial position error slightly affects mesh characteristics.A practical tooth bearing test verifies the significance of the proposed mesh model for the matching design.

关 键 词：变厚齿轮 交错轴 安装误差 啮合特性 

分 类 号：TH132.413[机械工程—机械制造及自动化]