目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc170619562"1引言PAGEREF_Toc170619562\h1HYPERLINK\l"_Toc170619563"2玉米脱粒机总体结构PAGEREF_Toc170619563\h1HYPERLINK\l"_Toc170619564"2.1入料部分PAGEREF_Toc170619564\h1HYPERLINK\l"_Toc170619565"2.2脱粒部分PAGEREF_Toc170619565\h1HYPERLINK\l"_Toc170619566"2.3筛选部分PAGEREF_Toc170619566\h1HYPERLINK\l"_Toc170619567"2.4机架部分PAGEREF_Toc170619567\h2HYPERLINK\l"_Toc170619568"2.5玉米脱粒机的总体设计PAGEREF_Toc170619568\h2HYPERLINK\l"_Toc170619569"3玉米脱粒机的设计PAGEREF_Toc170619569\h2HYPERLINK\l"_Toc170619570"3.1电动机的选择PAGEREF_Toc170619570\h2HYPERLINK\l"_Toc170619571"3.2钉齿条上的钉齿转速PAGEREF_Toc170619571\h3HYPERLINK\l"_Toc170619572"3.3钉齿滚筒的转速PAGEREF_Toc170619572\h3HYPERLINK\l"_Toc170619573"3.4电动机的功率PAGEREF_Toc170619573\h3HYPERLINK\l"_Toc170619574"3.5电动机的转速PAGEREF_Toc170619574\h3HYPERLINK\l"_Toc170619575"4带及带轮的设计PAGEREF_Toc170619575\h4HYPERLINK\l"_Toc170619576"4.1传动带的设计PAGEREF_Toc170619576\h4HYPERLINK\l"_Toc170619577"4.1.1确定计算功率PAGEREF_Toc170619577\h4HYPERLINK\l"_Toc170619578"4.1.2选择V带的型号PAGEREF_Toc170619578\h5HYPERLINK\l"_Toc170619579"4.1.3确定带轮的基准直径PAGEREF_Toc170619579\h5HYPERLINK\l"_Toc170619580"4.1.4确定传动中心距和带长PAGEREF_Toc170619580\h5HYPERLINK\l"_Toc170619581"4.1.5验算主动轮上的包角PAGEREF_Toc170619581\h6HYPERLINK\l"_Toc170619582"4.1.6确定V带的根数PAGEREF_Toc170619582\h6HYPERLINK\l"_Toc170619583"4.1.7确定带的初拉力PAGEREF_Toc170619583\h7HYPERLINK\l"_Toc170619584"4.1.8求V带传动作用在轴上的压力PAGEREF_Toc170619584\h7HYPERLINK\l"_Toc170619585"5V带带轮的设计PAGEREF_Toc170619585\h7HYPERLINK\l"_Toc170619586"5.1带轮的材料选择PAGEREF_Toc170619586\h7HYPERLINK\l"_Toc170619587"5.2结构设计PAGEREF_Toc170619587\h7HYPERLINK\l"_Toc170619588"5.3从动带轮的设计PAGEREF_Toc170619588\h8HYPERLINK\l"_Toc170619589"6传动轴的设计PAGEREF_Toc170619589\h9HYPERLINK\l"_Toc170619590"6.1根据轴向定位的要求确定轴的各段直径和长度PAGEREF_Toc170619590\h10HYPERLINK\l"_Toc1706