漿果采摘機的設計說明書.doc

I摘要現(xiàn)在農(nóng)業(yè)采摘已采用專業(yè)化、集約化和規(guī)?；烧?，農(nóng)業(yè)采摘機成為當今世界最具活力的新興農(nóng)業(yè)機械之一和現(xiàn)代農(nóng)業(yè)機械的亮點。結(jié)合我國農(nóng)業(yè)生產(chǎn)的實際需要，針對漿果采摘機農(nóng)業(yè)機械市場的特點，對漿果采摘機進行了研究、開發(fā)，設計研制出一種可自動完成對漿果的采摘及收獲的機械。課題從漿果采摘機原動部分及傳動部分的設計、工作部分的設計、液壓系統(tǒng)的設計等多方面詳細介紹了研究過程與方法，并給出了安裝及維護的注意事項。本設計以拖拉機作為原動機，通過拖拉機的拖拽，實現(xiàn)了漿果采摘機的行駛功能，液壓馬達為動力源，采用四連桿機構(gòu)實現(xiàn)了采摘機的采摘功能。針對不同的農(nóng)業(yè)地況，車體設計成可升降的結(jié)構(gòu)。關(guān)鍵詞：漿果采摘機；結(jié)構(gòu)設計；理論計算IIAbstractNowagriculturalpickinghasadoptedspecialized,intensiveandlarge-scaleagriculturepicking,pickingmachinebecomestheworldsmostdynamicemergingagriculturalmachineryandmodernagriculturalmachinerywindow.WithChinasagriculturalproductionactualneed,accordingtoberrypickingmachineagriculturalmachinerymarketcharacteristics,theberrypickingmachineundertookresearch,development,designanddevelopaautomaticcompletionoftheberrypickingandharvestingmachinery.Theberrypickingmachinedrivingpartandatransmissionpartofthedesign,partofthedesignwork,thedesignofhydraulicsystemandotheraspectsdetailedintroducesthestudyprocessandmethod,andgivestheinstallationandmaintenanceofthemattersneedingattention.Thedesignoftractorasmotive,thetractordrag,realizesthedrivingfunctionofberrypickingmachine,hydraulicmotorasapowersource,fourconnectingrodmechanismisadoptedtorealizepickingmachinepickingfunction.Inviewofthedifferentagriculturalcondition,bodyisdesignedintoaliftingstructure.Keywords：Berrypickingmachine；Structuredesign；TheoreticalcalculationIII目錄摘要.IAbstract.II第1章緒論.11.1選題的意義.11.2采摘機概述.11.2.1國內(nèi)外發(fā)展情況.11.2.2采摘機的簡介.21.2.3采摘機的主要用途和應用領(lǐng)域.2第2章總體方案設計.42.1總體方案確定.42.1.1旋轉(zhuǎn)式結(jié)構(gòu).42.1.2擺動式結(jié)構(gòu).42.2方案介紹及選擇.52.2.1旋轉(zhuǎn)式采摘介紹.52.2.2擺動式采摘介紹.52.2.3采摘方案選擇.6第3章采摘機的結(jié)構(gòu)設計及計算.73.1參數(shù)初定.73.1.1車體框架尺寸初定.73.1.2接果板總長初定.73.1.3擺架機構(gòu)尺寸初定.73.2框架的材料選擇及重量計算.73.3傳輸帶鏈輪的設計.83.3.1初選鏈輪齒數(shù).83.3.2確定計算功率.83.3.4計算單排鏈所能傳遞的功率及鏈節(jié)距.8IV3.3.5確定鏈實際長度及中心距.83.3.6計算鏈速.93.3.7計算作用在軸上的壓軸力.93.3.8按靜強度校核鏈條.93.3.9潤滑方式的選擇.103.3.10鏈輪的結(jié)構(gòu)設計.103.4擺架的設計.103.5軸的設計及計算.103.5.1選定車輪軸徑.123.5.2車輪軸的校核.143.5.3液壓支柱支撐軸校核.163.6軸承壽命計算.16第4章液壓系統(tǒng)設計.184.1液壓系統(tǒng)的設計要求.184.2液壓系統(tǒng)的基本回路.184.3確定液壓系統(tǒng)的主要參數(shù).204.3.1初選工作壓力.204.3.2計算液壓缸的主要結(jié)構(gòu)尺寸.214.3.3液壓缸工作流量的確定.224.3.4確定液壓缸的安裝方式.224.3.5繪制液壓系統(tǒng)的工作原理圖.22第5章漿果采摘機的安裝與維護.255.1安裝注意事項.255.2維護中的注意事項.25結(jié)論.26致謝.27參考文獻.28VCONTENTSAbstract.IChapter1Introduction11.1Significanceoftopics11.2Pickingmachineoverview11.2.1Thedevelopmentstatusathomeandabroad11.2.2Pickingmachineintroduction21.2.3PickingmachinemainlyusesandApplications3Chapter2Schemedesign52.1Scheme52.2Comparisonofthetrin72.3Thedesignfeaturest8Chapter3Calculationoftwo-wayconveyorbeltdesign93.1Theprimaryparameters93.2drivenform93.3Calculationoftransmissioncapacity103.4Thechoiceofconveyorbelt103.4.1Checkingwiththeintensity113.4.2withtheresistancecalculation123.4.3Belttensioncalculation133.5Calculatio