玉米秸秆切碎滚筒螺旋刀片的有限元分析  

Finite element analysis for helical blade of cornstalk shredding cylinder

作　　者：周春燕[1] 吕新民[1,2] 

机构地区：[1]西北农林科技大学机械与电子工程学院,杨凌712100 [2]陕西省农业装备工程技术研究中心,杨凌712100

出　　处：《机械设计与制造》2012年第5期21-23,共3页Machinery Design & Manufacture

基　　金：陕西省科技攻关项目(2003K03-G9-01)

摘　　要：玉米青贮机的运用日益广泛,其中动刀片是玉米秸秆切碎滚筒的主要工作零件,其质量和寿命直接影响玉米青贮机的切碎性能和生产率,其中螺旋形动刀片目前理论研究尚少。对切碎滚筒的各项参数进行了确定,对螺旋刀片进行了设计,并应用三维造型软件Pro/E对其进行了三维模型建立。应用有限元分析软件ANSYS,对螺旋刀片进行了应力分布和变形计算分析,分析了应力集中的原因,提出了提高螺旋刀片寿命的措施,为螺旋刀片的进一步研究提供了理论依据。Silage maize harvester is used more and more widely,in which the blade is the most important part of cornstalk shredding cylinder,which quality and longevity have direct effect on the shredding performance and productivity of the harvester,however,the study of helical blade is still laggard.Then the helical blade is designed after determining parameters of shredding drum.Meanwhile a three-dimensional model of the helical blade is created by Pro/E software,and the stress distribution and calculating deformation for the helical blades is analyzed with the help of ANSYS software which is used for finite element analysis.Finally the causes of stress concentration are analyzed and the measures to extend the life of helical blades are put forward,which provides a theoretical basis for the further study of helical blade.

关 键 词：玉米青贮机 螺旋刀片 ANSYS 有限元分析 

分 类 号：TH16[机械工程—机械制造及自动化] S224.29[农业科学—农业机械化工程]