【正文】 秸稈還田機(jī)畢業(yè)設(shè)計(jì)I 目 錄目 錄 .................................................................................................................................................Ⅰ摘 要 .................................................................................................................................................Ⅱ關(guān)鍵詞 .................................................................................................................................................ⅡKeywords ............................................................................................................................................Ⅱ第 1 章 緒 論 ....................................................................................................................................1 科學(xué)依據(jù) ........................................................................................................................................1 國內(nèi)外研究現(xiàn)狀 ...........................................................................................................................2 研究?jī)?nèi)容和方法 ...........................................................................................................................3第 2 章 秸稈還田機(jī)總體方案設(shè)計(jì) ............................................................................................5 拖拉機(jī)功率的選擇 .......................................................................................................................5 計(jì)算傳動(dòng)裝置的運(yùn)動(dòng)參數(shù) ..........................................................................................................6 傳動(dòng)部件設(shè)計(jì) ...............................................................................................................................7 錐齒輪計(jì)算 ..............................................................................................................................7 直齒輪的計(jì)算 ..........................................................................................................................11 軸的設(shè)計(jì)計(jì)算 ..........................................................................................................................13第 3 章 碎茬工作部件的設(shè)計(jì) ...................................................................................................18 刀軸機(jī)構(gòu)設(shè)計(jì) .............................................................................................................................18 刀軸強(qiáng)度校核 .............................................................................................................................18 刀片結(jié)構(gòu)設(shè)計(jì) .............................................................................................................................22 刀片主要結(jié)構(gòu)參數(shù)確定 ............................................................................................................22 刀片的排列 .................................................................................................................................23第 4 章 機(jī)組功率消耗及影響因素 ..........................................................................................25第 5 章 結(jié)論與討論 ......................................................................................................................26 結(jié)論 ..............................................................................................................................................26 討論 ...............................................................................................................................................26參考文獻(xiàn) ..............................................................................................................................................27致 謝 ...................................................................................................................................................29附 錄 ...................................................................................................................................................30Comment [微微微微1]: 這個(gè)沒做吧，不能隨便寫華中農(nóng)業(yè)大學(xué) 2022屆本科畢業(yè)論文 II 摘 要 保護(hù)性耕作技術(shù)是全球農(nóng)業(yè)技術(shù)發(fā)展的必然趨勢(shì)，秸稈還田技術(shù)是機(jī)械化保護(hù)性耕作中的一項(xiàng)關(guān)鍵技術(shù)， 在農(nóng)忙期間，使用機(jī)械化的秸稈還田技術(shù)可以使耕作的更為高效化，同時(shí)有力推動(dòng)機(jī)械化還田技術(shù)可以避免由于秸稈焚燒而帶來的一系列環(huán)境污染，本文所研制的秸稈還田機(jī)功率消耗小，粉碎率高，適合小規(guī)模的秸稈粉碎還田。在對(duì)秸稈粉碎及滅茬的基本理論分析的基礎(chǔ)上，我們提出了秸稈還田機(jī)得具體結(jié)構(gòu)方案設(shè)計(jì)。采用臥式結(jié)構(gòu)，主要由懸掛裝置，變速箱和秸稈粉碎機(jī)構(gòu)組成，拖拉機(jī)輸出動(dòng)力經(jīng)萬向節(jié)傳遞給變速箱，變速箱經(jīng)錐齒輪和直齒輪兩級(jí)。 減速后帶動(dòng)刀軸進(jìn)行秸稈粉碎達(dá)到秸稈粉碎還田的目的。通過相關(guān)軟件的模擬試驗(yàn)分析，我們所設(shè)計(jì)的機(jī)器滅茬率達(dá)到 98%，碎茬拋灑均勻，覆蓋率高，作業(yè)性能穩(wěn)定，可以很好的滿足農(nóng)藝要求，秸稈粉碎還田后可直接進(jìn)行后續(xù)播種作業(yè)。關(guān)鍵詞：保護(hù)性耕作，滅茬，秸稈還田機(jī)，變速箱碎茬刀，秸稈還田機(jī)， 滅茬 ABSTRACTConservation tillage technology is the global development trend of agricultural technologies, The smashed straw technology is one essential technology of the mechanized protection cultivation, the use of strawmechanization of farming can be more efficient while strong impetus to the mechanization to fields to avoid burning the straw brought about a series of environmental pollution, this paper developed the power consumption of a small straw machine, crushing rate, suitable