小型收割机切割传动机构的设计与尺寸综合优化  

Design of New Cutter Transmission Mechanism and Dimensional Synthesis Optimization for Small Harvesters

作　　者：孙书民[1,2] 柯坚[2] 

机构地区：[1]西华大学机械工程与自动化学院,四川成都610039 [2]西南交通大学机械工程学院,四川成都610031

出　　处：《西华大学学报（自然科学版）》2014年第4期29-33,共5页Journal of Xihua University:Natural Science Edition

基　　金：四川省教育厅项目(12ZB321)

摘　　要：针对小型收割机工作条件恶劣、结构紧凑、可靠性高的特点,提出一种采用空间连杆机构代替传统平面连杆机构的新型切割传动机构。采用谐波特征参数法建立该机构的数值图谱,结合半喂入式两行收割机的参数指标,对新型机构进行了尺寸综合和优化。将优化后的新机构与目前小型收割机的标杆产品pro208从尺寸大小和传力性能2个方面进行了分析比较。结果表明,新型机构的尺寸减小了34%,最小传动角γmin=68.45°,2项指标都优于传统机构。For small harvester poor working conditions, requiring compact, high reliability, a new cutter drive mechanism was proposed instead of the traditional space plane Linkage. The author established the mechanismg numerical map by using Harmonic characteristic parameter method. Combined with the parameters of a two-row harvester, new mechanism size synthesis and optimization was completed. The new mechanism was analyzed and compared with the size and force transmission of the standard product pro208 . Results show that the size was reduced by 34% , and γ_min= 68.45°for the new mechanism. The two indicators were superior to that of tra- ditional mechanism.

关 键 词：切割器 空间连杆机构 尺寸综合 优化 

分 类 号：S225.4[农业科学—农业机械化工程]