基于ANSYS的玉米青贮机动刀片力学分析  

Mechanics Analysis for Blades of Silage Maize Harvester Based on ANSYS

作　　者：刘洋[1] 吕新民[1] 张明涛[1] 马迎春 

机构地区：[1]西北农林科技大学机械与电子工程学院,陕西杨凌712100 [2]呼图壁县环境保护局,新疆呼图壁831200

出　　处：《农机化研究》2008年第6期34-36,共3页Journal of Agricultural Mechanization Research

基　　金：陕西省科技攻关项目(2003K03-G9-01)

摘　　要：动刀片刃口变形崩刃是玉米青贮机切碎装置存在的主要问题之一。为此,应用有限元ANSYS软件,对滚筒式切割器直板式动刀片进行了应力分布和变形计算分析,求解出刃口的切割和剪切应力变化曲线,并结合动刀片磨损曲线,得出刃口变钝和崩刃是动刀片主要失效和破坏形式的结论;同时,提出了防止动刀片失效的措施。Deformation and breakage of blade＇ s cutting edge are serious problems existing in shredding mechanism of si- lage maize harvester. The paper obtained changing curves of cutting and shearing stress by analyzing stress distribution and calculating deformation for blades of drum cutter means with the help of ANSYS software. Combined with the abrasion curve at the same time, the study shows that dulls and breakage of blade are common manifestations to the failure of blades, and puts forward some measures to avoid such problem.

关 键 词：玉米青贮机 动刀片 应力 有限元分析 

分 类 号：S225.8[农业科学—农业机械化工程] S126[农业科学—农业工程]