轮式联合收获机转向桥壳优化设计  

Optimized Design of Steering Axle Housing for Wheeled Combine Harvester

作　　者：马丽娜[1] 毛恩荣[1] 朱忠祥[1] 宋正河[1] 

机构地区：[1]中国农业大学现代农业装备优化设计北京市重点实验室,北京100083

出　　处：《农业机械学报》2013年第S2期283-287,272,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金："十二五"国家科技支撑计划资助项目(2011BAD20B01)

摘　　要：对联合收获机3种典型工况下的转向桥壳进行受力分析。研究了转向桥壳常用的几种截面形式对其强度和刚度的影响,提出了一种转向桥壳优化设计方法。利用ANSYS对某型号联合收获机转向桥壳进行了强度和刚度分析,并对其截面形式和尺寸进行了优化设计,优化设计后的转向桥壳不仅满足许用强度和刚度的要求,而且最大程度地减小了转向桥质量,比原设计下降了17.8%,并提高了加工制造性。同时,对转向桥壳应力集中出现的原因进行了分析并提出了工艺优化方案。Three typical work conditions were chosen to analyze the forces of steering axle housing of wheeled combine harvester.The effect of different section forms of wheeled combine harvester on strength and rigidity of steering axle housing were studied.Then,the optimized design method of steering axle housing was put forward.The strength and rigidity of steering axle housing for a certain type wheeled combine harvester were analyzed in ANSYS.Meanwhile,its section forms and dimensions were optimized.The improved steer axle housing not only satisfied the demand of strength and rigidity,but also reduced its weight by 17.8%,and enhanced its manufacturability at the same time.The reasons for stress concentration were studied and the optimization processes were proposed.

关 键 词：轮式联合收获机 转向桥壳 优化设计 应力集中 

分 类 号：S225[农业科学—农业机械化工程]