单粒精播播种机的覆土镇压装置设计 5.doc

PAGE\*MERGEFORMAT28毕业论文（设计）题目：单粒精播播种机的覆土镇压装置设计学号：姓名：年级：学院：系别：专业：指导教师：完成日期：年月日摘要本设计按照现有的单粒精播播种机加以改进设计，主要用于小田作业，目的是在玉米、大豆等作物精量播种施肥的同时，进行覆土和镇压土壤。单粒精播播种机覆土镇压装置的设计主要包括机架、仿形机构、覆土机构、镇压机构、以及整体的安装。本文主要包括覆土镇压机构的覆土盘、仿形机构、镇压轮和整机装配的设计。整机主要保证对种种子进行覆土，再压实土壤，同时加以仿形机构，改善镇压效果。整机的装配保证各机构位置之间合理，结构紧凑，行距可调且机构间不会发生干涉，从而提高播种机的工作性能。关键词：单粒精播；播种机；镇压装置AbstractThedesignisimprovedaccordingtotheexistingsingle-grainprecisionseeder.Itismainlyusedforfieldoperation.Thepurposeistocoverandsuppressthesoilwhileprecisionsowingandfertilizingcorn,soybeanandothercrops.Thedesignofthepressure-increasingdeviceforcoveringsoilofsingle-grainprecisionseedermainlyincludesframe,copyingmechanism,coveringmechanism,pressingmechanismandoverallinstallation.Thispapermainlyincludesthedesignofcoveringplate,copyingmechanism,pressingwheelandassemblyofthewholemachine.Thewholemachinemainlyguaranteestocoverseeds,compactthesoil,andimitatethemechanismtoimprovethecompressioneffect.Theassemblyofthewholemachineensuresthatthepositionsofeachmechanismarereasonable,thestructureiscompact,therowspacingisadjustableandthereisnointerferencebetweenthemechanisms,thusimprovingtheworkingperformanceoftheseeder.Keywords：singleseedprecisionseeding;seeder;suppressiondevice目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc6276284"1绪论PAGEREF_Toc6276284\h1HYPERLINK\l"_Toc6276285"1.1研究背景和意义PAGEREF_Toc6276285\h1HYPERLINK\l"_Toc6276286"1.2研究现状PAGEREF_Toc6276286\h1HYPERLINK\l"_Toc6276287"1.3研究内容PAGEREF_Toc627