牧草切根机往复切根机构设计与仿真  

Design and Simulation on Reciprocating Cutting Mechanism of Forage Grass Root-Cutting Machine

作　　者：李辉[1] 薛淑萍[1] 闫金顺 赵志云[1] 马骉[1] 

机构地区：[1]吕梁学院矿业工程系,吕梁033001

出　　处：《农业工程》2015年第5期86-91,共6页AGRICULTURAL ENGINEERING

基　　金：吕梁学院校内基金项目(项目编号:ZRXN201311)

摘　　要：现有牧草切根机切根机构多采用从动式机构直接带动切根刀工作,存在草地切缝大、疏松范围广和扰动较高等缺点。对牧草切根机切根机构进行了创新设计,采用液压缸驱动平行四杆机构实现切根刀的锯切,利用机构往复幅度实现切根刀锯切时的稳定性。通过采用机液综合解析法设计计算,分析了平行四连杆机构的运动,建立了机构模型。通过对机构的仿真,实现了机构预期的运动要求。Cutting mechanism of existing forage grass rootcutting machine mostly use slave mode mechanism driving root-cutting knife working. It＇s shortcomings are large grassland cutting seam, large-scale loose range and higher disturbance. Innovative design was made for cutting mechanism of forage grass root-cutting machine. Hydraulic cylinder driven parallel four bar mecha- nism was used to realize sawing of root cutter knife. Stability of root cutter knife was achieved by reciprocating amplitude of cut- ting mechanism. Motion of parallel four bar mechanism was analyzed according to design and calculation of comprehensive ana- lytical method for mechanical and hydraulic. Mechanism model was built. Expected movement requirements of root-cutting mechanism were realized by emulating.

关 键 词：切根机 往复四杆机构 切根部件 仿真 

分 类 号：S817.11[农业科学—畜牧学]