【正文】 目錄確定新型多功能組合農(nóng)用機(jī)的功能畢業(yè)論文目 錄摘 要 ................................................................................................................................IABSTRACT.....................................................................................................................II1 緒 論 ...........................................................................................................................1 國內(nèi)外農(nóng)業(yè)機(jī)械化的背景 ..........................................................................................1 國內(nèi)外農(nóng)業(yè)機(jī)械化的發(fā)展史 ................................................................................1 國內(nèi)外農(nóng)業(yè)機(jī)械化的發(fā)展現(xiàn)狀 ............................................................................1 國內(nèi)外農(nóng)業(yè)機(jī)械化的發(fā)展趨勢 ............................................................................2 本課題的研究方向和研究意義 ...................................................................................3 研究方向 ............................................................................................................3 研究意義 ............................................................................................................42 組合農(nóng)用機(jī)的總體設(shè)計(jì) .............................................................................................5 確定新型多功能組合農(nóng)用機(jī)的功能 ............................................................................5 玉米脫粒功能 .....................................................................................................5 切片功能 ............................................................................................................6 切絲功能 ............................................................................................................6 切碎功能 ............................................................................................................6 碾米功能 ............................................................................................................6 磨粉功能 ............................................................................................................7 磨漿功能 ............................................................................................................7 磨碎功能 ............................................................................................................7 刃磨刀具功能 .....................................................................................................7 抽水功能 ..........................................................................................................7 將各功能進(jìn)行組合 .....................................................................................................7 確定總體布局及傳動(dòng)方案 ..........................................................................................83 玉米脫粒機(jī)的設(shè)計(jì) ...................................................................................................10 玉米脫粒機(jī)的總體結(jié)構(gòu) ............................................................................................10 入料部分 ..........................................................................................................10攀枝花學(xué)院本科畢業(yè)設(shè)計(jì)（論文） 脫粒部分 ..........................................................................................................10 篩選部分 ..........................................................................................................10 機(jī)架部分 ..........................................................................................................11 關(guān)鍵參數(shù)的確定 ......................................................................................................11 釘齒條的受力 ...................................................................................................11 釘齒的轉(zhuǎn)速 ......................................................................................................11 釘齒滾筒的功率 ...............................................................................................12 釘齒滾筒的設(shè)計(jì) ......................................................................................................12 釘齒滾筒總體結(jié)構(gòu)的設(shè)計(jì) .................................................................................12 釘齒條的設(shè)計(jì) ...................................................................................................12 釘齒的設(shè)計(jì) ......................................................................................................13 圓盤的設(shè)計(jì) ......................................................................................................14 柵格式凹板的設(shè)計(jì) ...................................................................................................14 傳動(dòng)軸的設(shè)計(jì) ..........................................................................................................15 確定軸的最小直徑 ............................................................................................15 確定軸的各段直徑和長度 .................................................................................17 求出軸上載荷 ...................................................................................................17 校核軸的強(qiáng)度 ...................................................................................................20 入料口及脫粒機(jī)上蓋的設(shè)計(jì) .....................................................................................21 機(jī)架的設(shè)計(jì) .............................................................................................................21 軸承座的設(shè)計(jì) ..........................................................................................................22 標(biāo)準(zhǔn)件的選取 ..........................................................................................................224 多功能切碎機(jī)的設(shè)計(jì) ...............................................................................................23 多功能切碎機(jī)的設(shè)計(jì)要求 ........................................................................................23 多功能切碎機(jī)的工作原理 .................................................................................23 多功能切碎機(jī)的特點(diǎn) ........................................................................................23 多功能切碎機(jī)的總體結(jié)構(gòu) ...........