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1、本科机械毕业设计论文CAD图纸QQ401339828摘要在玉米分段收获时，玉米手工剥皮工序劳动强度大，费工时和误农时，且影响玉米的产量和质量，针对我国玉米收获后剥皮这个重要环节，设计出场上玉米剥皮机，它替代了传统人工剥皮的紧张劳动，减轻了人们的劳动强度，提高了劳动效率，有效地防止了因剥皮不及时而造成的玉米霉烂的损失，从而给农民带来了一定的经济效益。本设计采用3对辊机型，在满足剥净率大于95%，工作效率达到1500kg/h以上的设计要求的前提下进行设计，可满足不同用户的需求，同时该机结构简单，调整方便可靠，采用电动机作为动力。为满足设计
2、要求，主剥皮装置中的剥皮辊采用螺旋铁辊和橡胶辊组合的玉米剥皮辊，并且两辊高低配置，且可以根据玉米棒的大小不同，通过弹簧调节两辊间的距离。这避免了传统设计方法中铸铁辊对玉米籽粒的损伤，而且在结构上比传统设计的更加合理。经过设计、计算、校核，该机符合设计要求，并且剥皮装置较传统的传动系统有所改进，更适合在广大农村推广使用。关键词：玉米；剥皮机；螺旋铁辊；橡胶辊；农业机械32本科机械毕业设计论文CAD图纸QQ401339828ABSTRACTAtthetimethecornisharvested,thelaborforceofcorn’sc
3、lothestaked-offbyhandisverystrong,wastingtimeanddecreasingthequantityofthecorn.Tosolvetheproblemofcorn’sclothestaked-offthatisofgreatimportanceinourcountry,wedesignedthecorn’sclothestake-offmachineincludingthestructureandthetechnicalparameterdesign.Itisamachinethattakes
4、offthecorn’sclothes,whichhasfourtypes,respectivelymeetsthedemandofsingle,unionofseveralandbigharvest.Themachinetakestheplaceofthetraditionalhanded-labor,reducingpeople’slaborstrength,increasingtheefficiencyandpreventingthecorn’sdamage.Thestructureofthemachineissimpleand
5、themachineiseasilyadopted,reliableandofhighefficient.Thepowerofthemachinecanuseelectricmotor、deselengineandtheengineofthree-wheeledagriculturalcar.Thismachineadoptthealternatecurrentasthemotives.Thecylinderofthetaked-offlistisconsistedofspiralironcylinderandrubbercylind
6、er.Thespiralironhassomehurttotheseedofthecorn.Sothismachineadoptthewholerubbercylinder.Thismachineisdesignedunderthepremisethatmustbegetto95%oftaked-offrateandefficiencyrequirednolessthan1500kh/h,powernomorethan3kw.Togettotheserequirements,maintaked-offpartmakesuseofrub
7、bercylinder,andtheyareinstalledup-down.Themachinecanadjustthedistancebetweenthetwocylinderaccordingtothesizeofthecornandismorereasonablethanthewayoftraditionaldesigninstructure.Aftercalculationandcheck,themachinemeetsthedemandofdesign,andmakessomeimprovementsinthecorn’s
8、taked-offlistandthewayoftransmissionsystem,comparingwiththetraditionaldesign.Worthwhile,itiswidelyappliedinrur
