摘要
本文以磨粉机中面粉料流为研究对象,根据能量守恒原则建立磨粉机磨辊受力数学模型。以MDDK1000/250型磨粉机为例,计算出磨辊工作时所受载荷。由于磨辊工作时与物料局部接触,将几何模型简化为5°的辊体。通过Creo建立几何模型导入Workbench,通过分析得到磨辊α=5°方向磨辊轴向、径向的等效应力及应变曲线,可知磨辊工作过程中在α=5°方向磨辊径向的应力先增大后减小,应变一直增大。在α=5°方向磨辊轴向表面等效应力在30 mm处出现峰值,峰值为142.12 MPa,等效应变在104 mm处出现峰值,峰值为16.95mm。
Based on the principle of energy conservation,the mathematical model of grinding roller stress in grinding mill was established in this paper.Taking the MDDK 1000/250 grinding mill as an example,the load on the grinding roller is calculated.Due to the roller work local contact with material,the geometry model simplified as 5°of the roller body.Through importing the workbench Creo establish geometric model,through analysis of roller grinding roller to alpha=5°direction,radial equivalent stress and strain curve of the roller in the process of the work in alpha=5°direction roller radial stress increases after the first decreases,and the strain has been increased.Grinding roller in the alpha=5°direction to the surface of the equivalent stress at 30 mm peak,peak of 142.12 MPa,the equivalent strain peak appears at 104 mm,the peak of 16.95mm.
作者
黄奇鹏
武文斌
李聪
孟乐
林冬华
Huang Qipeng;Wu Wenbin;Li Cong;Meng Le;Lin Donghua(Grain and Oil Machinery Research Institute,Henan University of Technology(Zhengzhou 450001);Guangxi Liugong Machinery Co.,Ltd.(Liuzhou 545000))
出处
《粮食与食品工业》
2019年第1期51-54,共4页
Cereal & Food Industry
基金
河南省重点研发与推广项目(小麦磨粉机智能磨辊的研究开发:2018304)
关键词
有限元分析
磨辊
辊间压力
仿真分析
finite element analysis
roller
pressure between rolls
simulation analysis
作者简介
黄奇鹏,男,1992年出生,硕士研究生,研究方向为粮食机械设计及制粉工艺研究;通讯作者:武文斌,男,1959年出生,教授,博士生导师,研究方向为粮食机械现代设计技术。
