农机中静液压传动系统的设计与割台部分动态优化  

New Hydraulic Static Transmission Design and Cutting Gear System Dynamic Optimization in Agricultural Machinery

作　　者：孙书民[1,2] 王进戈[1] 柯坚[2] 陈华[1] 梁剑[1] 

机构地区：[1]西华大学机械工程与自动化学院,成都610039 [2]西南交通大学机械工程学院,成都610031

出　　处：《机械设计与研究》2013年第6期69-73,共5页Machine Design And Research

基　　金：四川省教育厅资助项目(12ZB321);西华大学校级重点基金资助项目(Z1220219)

摘　　要：针对西南丘陵地区对农业收获机械要求小巧灵活,而传统的分离式无级变速结构较大的特点,改进设计了集成式HST,利用PRO/E完成了具体零件的设计和复杂的三维结构总装。基于齿轮传动的动力学方程,以该改进机构中割台高低档齿轮系统的振动加速度和质量为优化目标,建立了齿轮传动的多目标动态优化模型,通过求解得到优化设计的齿轮较优参数。试验结果表明该结构高效紧凑,节省安装空间,且能有效地降低总体振动水平和质量,提高可靠性,对后续的样机开发具有很大的指导意义。According to the requirements of agricuhural mechanical harvester is small and flexible in southwest hilly, and the traditional separated-HST structure characteristics is large. So, the improved integrated-HST has been designed. Using PRO/E established 3D parts and assembly model based on virtual prototyping technology. Based on the kinetic equation of gear transmission, for improving the vibration acceleration and quality of the high and low cutting gear system as optimization objective, a muhi-objective optimization model of gear transmission is established. Solved the gear parameters of the dynamic optimization design. The experimental results show that the structure is compact, saving installation space, and can effectively reduce the overall vibration level and quality, improving reliability. This has great significance for follow-up prototype development.

关 键 词：收获机械HST 动态优化 割台 

分 类 号：S225[农业科学—农业机械化工程]