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高效精密大豆播种机设计说明书.doc

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高效精密大豆播种机设计说明书.doc

黑龙江工程学院本科生毕业设计I摘要本文主要介绍了大豆播种机的工作原理及其所能完成的任务。通过普通拖拉机的牵引带动播种轮的转动,进而通过鸭嘴器的开合实现大豆的机械化播种,大大提高播种的效率,提高劳动生产力。通过对设计要求的分析,此系统主要由播种轮,鸭嘴器来完成播种要求。在拖拉机行进过程中,由播种器的轮子带动播种轮的转动,通过安装在播种轮上的鸭嘴器插入离开土壤,完成播种。此设计主要适用于大面积的土地耕种,可以取代人工播种,降低劳动强度,提高效率,有利于在繁忙时节完成播种要求。关键词大豆播种机播种轮鸭嘴器促张杆连接筒黑龙江工程学院本科生毕业设计IIABSTRACTThispaperdescribesthemembranePlanterprincipleandcancompletethetask.ThroughtheordinarytractordrivenbroadcasttractionSpeciesroundoftherotation,andthenthroughvasicineofCDCCachievemembranemechanizedplantingandsowinggreatlyenhancetheefficiency,improvelaborproductivity.Basedontheanalysisofthedesignrequirements,thesystemismainlyseedinground,vasicinetofulfilltherequirementsofsowing.Tractorroadintheprocess,fromplantingofseedingrounddrivenwheelsturning,ThroughtheinstallationoftheseedingroundoftheduckbilledInsertleftsoil,completedsowing.Thisdesignismainlyappliedtoalargeareaoflandfarmed,canreplaceartificialseeding,reducedlaborintensity,increaseefficiency,tobecompletedduringthepeakseasonplantingrequirements.KeywordsMembranePlanterSeedingFerryvasicineconnectiontubepromoteastem黑龙江工程学院本科生毕业设计目录摘要.................................................................................................................................................................................IAbstract............................................................................................................................................................................II第1章绪论................................................................................................................................................................11.1课题研究的背景...........................................................................................................11.2课题的提出和研究的意义...........................................................................................11.3国内外播种机机械研究现状.......................................................................................21.4课题研究的主要内容...................................................................................................3第2章大豆播种机方案确定.....................................................................................................................42.1总体结构及配置...........................................................................................................42.2工作原理简介...............................................................................................................42.3本章小结.......................................................................................................................5第3章总体设计参数的确定.....................................................................................................................63.1排种器的结构及工作过程...........................................................................................63.2播种轮直径和鸭嘴数量的确定...................................................................................73.2.1考虑因素............................................................................................................73.2.2播种轮直径计算................................................................................................73.3本章小结.......................................................................................................................8第4章播种轮和鸭嘴器具体设计........................................................................................................84.1播种轮设计...................................................................................................................94.2鸭嘴器设计..................................................................................................................114.2.1鸭嘴器结构设计.................................................................................................114.2.2鸭嘴器的运动分析............................................................................................124.2.3成穴器基本参数的确定....................................................................................144.3本章小结.....................................................................................................................17第5章主轴设计与校核..............................................................................................................................18黑龙江工程学院本科生毕业设计5.1轴的材料.....................................................................................................................195.2轴的类型选择.............................................................................................................195.3计算轴上转矩和初步确定最小直径.........................................................................205.3.1轴的材料和热处理方式的选择........................................................................215.3.2计算轴上转矩和初步确定最小直径................................................................215.3.3轴的结构设计....................................................................................................215.4键联接选择和校核.....................................................................................................225.4.1平键连接............................................................................................................225.4.2键联接的强度校核............................................................................................235.5轴的计算.....................................................................................................................255.5.1轴的直径的计算................................................................................................255.5.2轴的结构简图....................................................................................................265.5.3轴上载荷的计算................................................................................................265.6本章小结.....................................................................................................................29第6章大豆播种的正确使用....................................................................296.1播种前机具的准备.....................................................................................................296.2使用注意事项.............................................................................................................296.3大豆播种机的特点.....................................................................................................306.4用好大豆播种机.........................................................................................................306.5本章小结.....................................................................................................................31结论...................................................................................................................................................................................32参考文献......................................................................................................................................................................33致谢...................................................................................................................................................................................34附录...................................................................................................................................................................................36

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