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y215玉米收割機(jī)割臺(tái)的設(shè)計(jì)本科畢業(yè)設(shè)計(jì)-展示頁(yè)

2024-09-13 16:25本頁(yè)面
  

【正文】 ................................................ 1 國(guó)內(nèi)外研究現(xiàn)狀 ...................................................................................... 2 國(guó)內(nèi)玉米收獲機(jī)的研制狀況 .........................................................2 國(guó)外玉米收獲機(jī)的研 制趨勢(shì) .........................................................3 課題研究的主要內(nèi)容 ................................................................................ 5 主要內(nèi)容 ..........................................................................................5 擬解決的關(guān)鍵問(wèn)題 ..........................................................................5 第 2 章 總體方案的設(shè)計(jì) ........................................... 6 結(jié)構(gòu)功能要求 ........................................................................................... 6 機(jī)構(gòu)方案設(shè)計(jì) ........................................................................................... 6 摘穗裝置設(shè)計(jì)與分析 .............................................................................. 7 第 3 章 關(guān)鍵部件設(shè)計(jì) ............................................ 10 分禾器分析與設(shè)計(jì) ................................................................................ 10 摘穗裝置的計(jì)算 .....................................................................................11 撥禾鏈線速度與拉莖棍線速度分析 ........................................... 11 鏈輪和鏈條選擇 ............................................................................14 絞龍部分分析與設(shè)計(jì) ............................................................................ 16 第 4 章 主要零部件強(qiáng)度校核 ...................................... 22 軸的校核 ................................................................................................... 22 鍵 的強(qiáng)度校核 ......................................................................................... 27 結(jié) 論 .......................................................... 29 致 謝 .......................................................... 30 參考文獻(xiàn) ........................................................ 31 V Content Abstract ………………………………………………………………… …… Ⅰ Chapter1 Introduction………………………………………………………… ...1 Topics raised and significance………………………………… ..........1 Domestic and foreign research and development status and trends ....2 The development of the domestic corn harvester..……… …… .2 The development trend of foreign corn harvester..…………….. 3 Research content ….. ……………………………………… ………… .5 The main contents…. ………………………………………….. 5 Intends to solve the key issues… ………………………… 5 Chapter 2 Chapter of the overall program design…….. ………………… … .6 The structure and function requires………………… ……………........ 6 Institutional design………………………………………………… .….. 6 Snapping the device design and analysis…………………………… … 7 Chapter 3 Chapter of the key ponents of design… ……… ……………… 10 SubWodevice analysis and design ……………………………… ..10 Abstract ear device puting……………………………………….. 11 Reel chain line speed and pull the stem stick line velocity analysis ...…………………………………………………… 11 Sprockets and chains to choose………………………………14 Auger part of the analysis and design……………… .......………….. 15 Chapter4 The main ponents of strength check…………………… …. .21 Axis design and checking ..……… ……………………………… … ..21 Bearing design checking…………………………………………… ..26 Key strength check………………………………………………….. .27 Conclusions…………………………………………………………………… … 28 Acknowledgements……………………… ………………………… ………… . .29 References… …………………………………………………………………… ..30 VI VII 1 第 1 章 緒論 課題的提出和意義 我國(guó)玉米種植面積和總產(chǎn)量?jī)H次于美國(guó)居世界第二位。對(duì)本研究提供過(guò)幫助和做出過(guò)貢獻(xiàn)的個(gè)人或集體,均已在文中作了明確的說(shuō)明并表示了謝意。 關(guān)鍵詞 : 玉米收獲; 收集裝置; 摘穗裝置; 分禾器 II Abstract Corn is one of the three major grain crops in our country, and has planted throughout here and there. planting corn has an important position in increasing the prehensive productivity of grain, ensuring food safety as well as meeting the demand of feedstuff.. in order to promote agricultural modernization, we must implement the mechanization of grain production, especially should accelerate the realization of mechanized harvesting, however, our corn harvest mechanization level is very slow , it is less than 10 percent , it bee the weak link of the grain planting and production. Header is at the heart of corn harvester parts of the system analysis and design, provides a basis for corn harvester manufacturing. Header includes guide/pulling the stem rod, clamp conveyor chain. Pick roller corn harvester pick key parts of the ear device. therefore the property resrarch of the corn picker is poor and instability. Keywords corn pick, collection devices, pick device, Virtual Design III 畢業(yè)設(shè)計(jì)(論文)原創(chuàng)性聲明和使用授權(quán)說(shuō)明 原創(chuàng)性聲明 本人鄭重承諾:所呈交的畢業(yè)設(shè)計(jì)(論文),是我個(gè)人在指導(dǎo)教師的指導(dǎo)下進(jìn)行的研究工作及取得的成果。割臺(tái)部分包括分禾器、拉莖棍、夾持輸送鏈。為此,各級(jí)政府和越來(lái)越多的農(nóng)機(jī)制造企業(yè)正在加大投入,積極開(kāi)展玉米收獲機(jī)械技術(shù)的研究和新型裝備的設(shè)計(jì)與開(kāi)發(fā)。但我國(guó)目前玉米收獲程度還不到百分之十。 I 摘 要 玉米 是我國(guó)三大糧食作物之一,各地方都有種植,無(wú)論是對(duì)于提高糧食綜合 玉米 生產(chǎn)能力、確保糧食安全,還是對(duì)于滿足日益增長(zhǎng)的飼料需求,都具有舉足輕重的地位。為了促進(jìn)農(nóng)業(yè)的現(xiàn)代化,必須實(shí)行糧食生產(chǎn)的機(jī)械化,尤其應(yīng)加快實(shí)現(xiàn)收獲環(huán)節(jié)的機(jī)械化。已成為玉米機(jī)械化生產(chǎn)的瓶頸。 割臺(tái)是玉米收獲機(jī)的核心部分,本次對(duì)割臺(tái)的主要部件進(jìn)行了系統(tǒng)的理論分析和設(shè)計(jì),為玉米收獲機(jī)的制造 提供了依據(jù)。摘棍是玉米收獲機(jī)摘穗裝置的關(guān)鍵部件,因此,研究玉米莖稈在摘棍間的運(yùn)動(dòng)狀態(tài)與摘穗各結(jié)構(gòu)、運(yùn)動(dòng)參數(shù)之間的關(guān)系十分重要。盡我所知,除文中特別加以標(biāo)注和致謝的地方外,不包含其他人或組織已經(jīng)發(fā)表或公布過(guò)的研究成果,也不包含我為獲得 及其它教育機(jī)構(gòu)的學(xué)位或?qū)W歷而使用過(guò)的材料。 作 者 簽 名: 日 期: 指導(dǎo)教師簽名: 日 期: 使用授權(quán)說(shuō)明 本人完全了解 XX 大學(xué)關(guān)于收集、保存、使用畢業(yè)設(shè)計(jì)(論文)的規(guī)定,即:按照學(xué)校要求提交畢業(yè)設(shè)計(jì)(論文)的印刷
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