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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播種方式及常見播種類型······················································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