双圆盘割草机切割器虚拟样机设计与试验  

Design and Experiment of Virtual Prototype of Double Disc Mower Cutter

作　　者：赵满全[1] 张宁[1] 杨铁军[2] 史艳花[3] 

机构地区：[1]内蒙古农业大学机电工程学院,呼和浩特010018 [2]中国农业机械化科学研究院呼和浩特分院,呼和浩特010010 [3]武汉轻工大学机械工程学院,武汉430023

出　　处：《农业机械学报》2014年第8期101-105,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家农业科技成果转化资金资助项目(2009GB2A400054);内蒙古自治区科技创新引导奖励资金资助项目(20101734)

摘　　要：应用SolidWorks的参数化设计功能建立9YG-130型双圆盘割草机切割器各零部件三维实体模型,通过约束装配完成虚拟样机设计,将模型导入动力学分析软件ADAMS后进行运动仿真,得到了切割机构在前进速度2.78 m/s、刀盘转速2 000 r/min时刀片顶点的运行轨迹,根据运动轨迹可计算其重割面积。对模型进行四因素三水平虚拟正交试验,采用Design-Expect 8.0软件进行方差分析,结果表明,最佳取值为vg=57.01 m/s,vj=2.76 m/s,h=34.06 mm,m=3时割草机的重割率得到有效降低。通过实际样机试验结果验证了该设计满足割草机对草业技术的要求,提高了设计效率和准确性。Using parametric design of SolidWorks, three-dimensional solid models of all parts of 9YG- 130 double disc mower cutter were built, and the design of virtual prototype was completed by constraint assemble. Introducing the models to the dynamic analysis software ADAMS, the motion simulation was performed, and the trajectory of the cutter vertex was obtained when setting the forward speed of the cutter with 2.78 m/s, and rotation speed with 2 000 r/min. The virtual orthogonal experiment with three levels and four factors was conducted, and Design-Expect 8.0 software was used to complete analysis of variance. The results showed that the repeat cut ratio of the cutter was effectively reduced when the four factors were Vg = 57.01 m/s, vj = 2.76 m/s, h = 34.06 mm, and m = 3. The actual prototype experiment results showed that the experiment design met the mower requirements for grass industry technology, and improved efficiency and accuracy of the design.

关 键 词：双圆盘割草机 切割器 虚拟样机 虚拟正交试验 性能试验 

分 类 号：S817.111[农业科学—畜牧学]