轴流式脱扬机毕业设计VIP专享VIP免费

JIANGXIAGRICULTURALUNIVERSITY本科毕业设计题目：轴流式脱扬机的总体及脱粒装置毕业设计学院：江西农业大学姓名：王晨学号：20080981专业：机械设计制造及其自动化年级：2008级指导教师：严霖元职称：教授二○一二年五月摘要本设计是关于轴流式脱扬机的总体设计，主要对轴流式脱扬机的脱粒装置总体进行计算和分析设计。轴流式脱扬机脱粒部分主要由滚筒、主轴、钉齿、机架等组成，通过对进入脱粒室的谷物进行冲击和揉搓作用，分离茎秆和谷粒，并直接将谷粒抛出。它能有效提高脱粒效率，有利于脱粒干净，减低对稻穗的破碎率，并能很好的分离茎秆和谷粒，从而有效提高农业生产率，大大减轻农民劳动强度。关键字：脱扬机；分离；滚筒AbstractThisproject,whichfocusedonthetotalcalculationandanalysisofAxialde-Yangmachine'sThreshingdevices,isaboutthetotaldesignofAxialde-Yangmachine.TheAxialde-Yangmachine'sthreshingpartisconstituteofroller,spindle,frameandnailtooth.Whengraingetintothethreshingroom,throughtotheimpactofthegrainandkneadrole,thestemandthegrainwillseparate,andthegrainwillbeenthrowaway.thismachinecaneffectivelyimprovetheefficiencyofthreshing,makethreshingmoreclearer,andreducethegrain'sbrokenrate,what'smore,itcanbewelltoseparatestemandgrain,theneffectivelyimproveagriculturalproductivity,reducefarmer'slaborintensity.Keywords:Axialde-Yangmachine;separate;roller目录1.绪论....................................................................................................................................11.1设计的目的与意义.....................................................................................................11.2国内外发展现状.........................................................................................................12.轴流式脱扬机的总体方案设计及工作原理..................................................................22.1总体方案的选择.........................................................................................................22.2工作原理.....................................................................................................................23.电动机的选择..................................................................................................................33.1电动机的类型和结构.................................................................................................33.2电动机容量的选择.....................................................................................................33.3.电动机型号的选择.....................................................................................................44.滚筒的设计........................................................................................................................44.1.滚筒的型式.................................................................................................................44.2.滚筒的直径和转速.....................................................................................................44.3滚筒齿的形状和排列.................................................................................................54.4滚筒长度.....................................................................................................................55.滚筒钉齿的设计..............................................................................................................55.1滚筒钉齿的形状................................................................................................