小型電動(dòng)助力播種機(jī)設(shè)計(jì)【直流雙行播種】【施肥、耙磨、除草】【小麥、玉米】【說(shuō)明書(shū)+CAD】

小型電動(dòng)助力播種機(jī)設(shè)計(jì)【直流雙行播種】【施肥、耙磨、除草】【小麥、玉米】【說(shuō)明書(shū)+CAD】,直流,雙行播種,施肥、耙磨、除草,小麥、玉米,說(shuō)明書(shū)+CAD,小型電動(dòng)助力播種機(jī)設(shè)計(jì)【直流,雙行播種】【施肥、耙磨、除草】【小麥、玉米】【說(shuō)明書(shū)+CAD】,小型,電動(dòng),助力,播種機(jī),設(shè)計(jì),直流,雙行,播種 目錄 第1章 前言··········································································1 1.1播種機(jī)的常識(shí)和技術(shù)現(xiàn)狀······················································1 1.2播種方式及常見(jiàn)播種類(lèi)型······················································3 1.2.1條播········································································3 1.2.2穴播········································································4 1.2.3撒播········································································4 1.2.4精密播種···································································4 1.2.5聯(lián)合作業(yè)機(jī)和免耕播種···················································5 1.3播種工作過(guò)程和機(jī)械構(gòu)造······················································5 1.3.1工作過(guò)程···································································5 1.3.2機(jī)械構(gòu)造···································································6 1.4 播種機(jī)械的發(fā)展趨勢(shì)···························································7 第2章 總體設(shè)計(jì)···································································9 2.1 概述·············································································9 2.2 設(shè)計(jì)任務(wù)·······································································10 2.3 設(shè)計(jì)目的·······································································10 2.4 動(dòng)力方案選擇·································································10 2.5 設(shè)計(jì)題目分析及設(shè)計(jì)思想····················································12 2.6 設(shè)計(jì)主參數(shù)及機(jī)構(gòu)類(lèi)型確定·················································12 2.6.1工作速度·································································12 2.6.2播量的確定·······························································13 2.6.3種、肥箱的容積·························································13 2.6.4機(jī)架設(shè)計(jì)·································································14 2.6.5工作幅度·································································14 2.6.6 排種、排肥機(jī)構(gòu)設(shè)計(jì)···················································14 2.6.7開(kāi)溝器設(shè)計(jì)·······························································18 2.6.8覆土器設(shè)計(jì)·······························································20 2.6.9鎮(zhèn)壓輪設(shè)計(jì)·······························································21 2.6.10 地輪設(shè)計(jì)·······························································22 第3章 傳動(dòng)設(shè)計(jì)及播種技術(shù)措施···········································23 3.1傳動(dòng)原理簡(jiǎn)圖和動(dòng)力傳遞路線圖·································23 3.1.1傳動(dòng)原理簡(jiǎn)圖····························································23 3.1.2動(dòng)力傳動(dòng)路線圖·························································23 3.2傳動(dòng)原理·······································································23 3.3技術(shù)措施·······································································24 3.3.1播種均勻性和各行排量一致性措施····································24 3.3.2降低破種率措施·························································25 3.3.3種肥同播時(shí)，肥料的利用率············································25 第4章 零部件設(shè)計(jì)·······························································26 4.1種箱及肥箱設(shè)計(jì)·······························································26 4.2開(kāi)溝器設(shè)計(jì)及校核····························································27 4.3排種器·········································································28 4.4地輪參數(shù)確定··································································29 4.4.1輪子直徑和輪輞寬度的確定············································29 4.4.2輪子滾動(dòng)阻力計(jì)算·······················································30 4.5電機(jī)和電瓶選擇及鏈輪設(shè)計(jì)··················································30 4.5.1電機(jī)總功率確定·························································30 4.5.2電動(dòng)機(jī)及電瓶的選擇····················································31 4.5.3傳動(dòng)比的確定····························································32 4.5.4鏈輪選擇及設(shè)計(jì)計(jì)算····················································33 4.6地輪軸設(shè)計(jì)·····································································37 4.7鍵的校核·······································································44 4.8銷(xiāo)的校核·······································································45 4.9軸承的校核·····································································45 第5章 電氣控制系統(tǒng)設(shè)計(jì)·····················································47 5.1電氣系統(tǒng)設(shè)計(jì)原則·····························································47 5.2電氣元件的選擇·······························································47 第6章 播種機(jī)使用·······························································49 6.1播種量調(diào)整·····································································49 6.2實(shí)際操作說(shuō)明··································································50 6.2.1播種作業(yè)前準(zhǔn)備·························································50 6.2.2播種機(jī)的試播及作業(yè)····················································52 6.2.3播種機(jī)的保養(yǎng)與保管····················································53 6.2.4播種質(zhì)量檢查····························································53 第7章播種機(jī)的三維建?！ぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁ?5 7.1基本零部件的建模·····························································55 7.2零件的裝配·····································································56 7.3三維軟件學(xué)習(xí)心得·····························································57 第8章 畢業(yè)設(shè)計(jì)小結(jié)····························································58 參考文獻(xiàn)·············································································60