玉米脫粒機的論文定稿
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- 緒論........................................................................1
1.玉米脫粒機總體設計方案...................................................1
1.1設計任務分析.............................................................2
1.1.1總功能確定.............................................................2
1.2功能分析.................................................................2
1.2.1功能分析...............................................................2
2.電動機的選擇..............................................................2
2.1電動機的轉速.............................................................2
2.2確定電機工作效率….......................................................4
2.3確定電機的型號...........................................................4
3.帶輪與傳動帶的設計........................................................5
3.1帶輪材料的選擇...........................................................5
3.2帶輪的結構設計...........................................................5
3.2.1主動輪的結構設計......................................................5
3.2.2從動帶輪的設計........................................................6
3.3傳動帶的設計............................................................7
4.軸的設計................................................................10
4.1軸材料的選擇............................................................10
4.2軸結構的基本要求........................................................10
4.3根據軸向定位的要求確定軸的各段直徑和長度................................12
4.4 初步選擇輸出軸系.......................................................12
4.5確定輸出軸上的圓角半徑 值...............................................12
4.6按彎扭合成條件校核軸的強度..............................................12
4.6.1作軸的簡圖............................................................12
4.6.2 求輸出軸上的所受作用力的大小.........................................12
4.6.3釘齒條上的合力........................................................12
4.6.4軸上水平面內所受支反力如圖............................................13
4.6.5軸在垂直面內所受的支反力..............................................13
4.6.6 作彎矩圖.............................................................13
4.6.7作彎矩圖.............................................................14
4.6.8作當量彎矩圖（彎矩、扭矩合成圖）.....................................14
4.7 校核軸的強度..........................................................15
4.8軸承座的設計..........................................................16
5.釘齒滾筒的設計.........................................................16
5.1釘齒條的總體結構設計...................................................16
5.2釘齒條及釘齒的設計......................................................17
5.2.1釘齒的設計............................................................17
5.3 圓盤的設計 ............................................................17
6.玉米脫粒機的安全操作.....................................................18
6.1超速運轉,機械“爆炸”...................................................18
6.2禁止過疲勞或酒后操作....................................................18
7.玉米脫粒機的維護.......................................................29
7.1玉米脫粒機的技術保養...................................................20
7.2玉米脫粒機的保管........................................................20
結論......................................................................20
致謝......................................................................21
參考文獻...................................................................21
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