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机械设计课程设计说明书 设计带式运输机传动装置
l 设计任务.................................. ..................3
2 电动机的选择计算............................................3
2.1选择电动机的转速.............................................3
2.1.l计算传动滚筒的转速.........................................3
2.1.2选择电动机的转速...........................................3
2.2 所需电动机的输出功率.........................................3
2.2.1工作机的功率...............................................4
2.2.2 传动装置的总效率...........................................4
2.2.3 所需电动机的输出功率.......................................4
2.3选择电动机的型号..............................................4
3 传动装置的运动和动力参数计算...............................4
3.1 分配传动比....................................................4
3.l.1 总传动比..................................... ..............4
3.1.2 各级传动比的分配 ...........................................5
3.2 各轮功率、转速和转矩的计算....................................5
4 传动零件的设计计算...........................................6
4.l V带传动的设计算...............................................6
4.1.1小带轮结构图 ...............................................9
4.1.2大带轮结构图 ...............................................10
4.2 斜齿圆柱齿轮传动的设计计算...................................20
5 轴的设计计算.................................................20
5.l 减速器高速轴的设计.................................. ........20
5.1.l 选择轴的材料.......................... ....................20
5.1.2 按转矩初步估算轴外伸端的直径....................... ...... 20
5.1.3计算带的轮毂宽度，设计轴的结构，初选滚动轴承.. .............20
5.1.4选择联轴器，设计轴的结构，初选滚动轴承.......... ...........21
6 减速器高速轴的校核............................. ............21
6.1求小齿轮上的作用力.............................. .............21
6.2绘制高速轴的计算简图及轴的空间受力简图.......... .............21
6.2.1求垂直面内的支承反力，作垂直面内的弯矩图..... ..............22
6.2.2求垂直面内的弯矩............................................22
6.2.3作垂直面内的弯矩图............................... ..........22
6.3.1求水平面内的支承反力，作水平面内的弯矩图.......... .........22
6.3.2求水平面内的弯矩.......................... .................23
6.3.3作水平面内的弯矩图.........................................23
6.4.1求合成弯矩，作合成弯矩图..................... ...............23
6.4.2作转矩图....................................................24
6.4.3求当量弯矩，作当量弯矩图........................ ......... ..24
6.5选择2至3个危险截面，校核轴的强度.............................25
7 减速器高速轴滚动轴承的选择及其寿命计算....... ............26
7.1选择轴承类型及初定型号......................... ...............26
7.2计算轴承的受力............................. ...................26
7.3计算当量动载荷................................. ...............26
7.4计算轴承寿命................................... ...............26
8.高速键联接的选择和验算....................... ................27
8.l减速器小齿轮与高速轴的键联接.................. ................27
8.2带轮与减速器高速轴的键联..................... .................28
9 联轴器的选择................................ ..................28
10 润滑与密封................................. ..................28
10.1减速器齿轮传动润滑方式和润滑油的选择........ ..................28
10.2减速器轴承润滑方式和润滑剂的选............. ..................28
10.3减速器密封装置的选择、通气器类型的选择..... ...................28
11 总结（设计体会）........................ ....................28
12 参考文献....................... ............. ................29