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2016年玉米脫粒機(jī)畢業(yè)論文設(shè)計目錄

目  錄

1、緒論…………………..…………………................................…..............................................1

1.1研究內(nèi)容的現(xiàn)狀………..………………………………........................………………..1

1.2選題意義……………………………………………….....................……...…………....1

1.3研究內(nèi)容…………………...……………...........………………..…................................1

2、玉米脫粒機(jī)總體設(shè)計方案……………………………......…...............................…...........…2

2.1設(shè)計任務(wù)分析………………………………....................................................................2

2.1.1總功能確定……………………….............……………........................................3

2.2功能分析…………………………………………….....……………...............................3

2.2.1功能分析………………………………………………….…................................3

3、電動機(jī)的選擇…………………………….......................………..…...……….………...........4

3.1電動機(jī)的轉(zhuǎn)速………………………………………………...........................….............4

3.2確定電機(jī)工作效率….....................……………………………….....………….…….....5

3.3確定電機(jī)的型號………………….....................……………………...……….….…..…5

4、帶輪與傳動帶的設(shè)計............……………….....................……...........……….....…...........…6

4.1帶輪材料的選擇….....................………………...............……..........………......…..…..6

4.2帶輪的結(jié)構(gòu)設(shè)計………………........................................…............................................6

4.2.1主動輪的結(jié)構(gòu)設(shè)計.................................................................................................6

4.2.2從動帶輪的設(shè)計.………..…..................................................................................7

4.3傳動帶的設(shè)計………...................................................................………..…….….….....8

5、軸的設(shè)計………………………………...................…….……………...……….…...............11

5.1軸材料的選擇…………………….....................….…….........……………...................11

5.2軸結(jié)構(gòu)的基本要求………………….....................……………........…….......….….....11

5.3根據(jù)軸向定位的要求確定軸的各段直徑和長度..............................................…....…12

5.4 初步選擇輸出軸系........................................................................................................12

5.5確定輸出軸上的圓角半徑值.......................................................................................13

5.6按彎扭合成條件校核軸的強(qiáng)度......................................................................................13

5.6.1作軸的簡圖...........................................................................................................13

5.6.2 求輸出軸上的所受作用力的大小.....................................................................13

5.6.3釘齒條上的合力...................................................................................................13

5.6.4軸上水平面內(nèi)所受支反力如圖...........................................................................13

5.6.5軸在垂直面內(nèi)所受的支反力...............................................................................14

5.6.6 作彎矩圖.............................................................................................................14

5.6.7作彎矩圖..............................................................................................................15

5.6.8作當(dāng)量彎矩圖（彎矩、扭矩合成圖）..............................................................15

5.7 校核軸的強(qiáng)度................................................................................................................15

5.8軸承座的設(shè)計..................................................................................................................16

6、釘齒滾筒的設(shè)計………………...................…….....…………………….....……….............17

6.1釘齒條的總體結(jié)構(gòu)設(shè)計……….....................…….........………………….......….…....17

6.2釘齒條及釘齒的設(shè)計…………….....................……..........……………..........….........17

6.2.1釘齒的設(shè)計.....…………….................................................................................17

6.3 圓盤的設(shè)計 ….........………….....................…............................................................18

7、玉米脫粒機(jī)的安全操作..........................................................................................................19

7.1超速運(yùn)轉(zhuǎn),機(jī)械“爆炸”……….....................………....….........……..................……19

7.2禁止過疲勞或酒后操作…………......................................……………........................19

8、玉米脫粒機(jī)的維護(hù)..................................................................................................................21

8.1玉米脫粒機(jī)的技術(shù)保養(yǎng)…………..................................................................................21

8.2玉米脫粒機(jī)的保管…………………….....................................….................................21

總結(jié)：……………………............................................................................................................22

參考文獻(xiàn)…………………….......................................................................................................23

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