CA6140型车床主轴箱的设计.doc

目录 摘要.. ...................................................................I 1引言............... ....................................................1 1.1 CA6140型普通车床在机械加工行业的作用...............................1 1.2 CA6140型普通车床的组成.............................................1 1.3 研究此题题的意义.. .................................................1 2 传动方案设计......................................................... ..3 2.1 结构式分析............................................ .............3 2.2 绘制转速图和系统图............................................... ..4 3 主要零件的设计和验算 . .................................................7 3.1 主轴箱的箱体... ....................................................7 3.2 普通V带传动的计算..................................................7 3.3 确定各轴和齿轮转速... ..............................................9 3.4各传动组齿轮模数和直径的确定........................................9 3.5 齿轮强度校核 ......... ............................................11 3.6 确定各轴最小直径 .................... ............................14 3.7 传动轴的校核............................................... .......15 3.8 主轴最佳跨距的确定和主轴挠度................................... ...16 3.9 滚动轴承验算.................................................. ....18 4 结构设计和材料选择... .................................................21 4.1 带轮设计 ......... ................................................21 4.2 齿轮设计......... .................................................21 4.3 材料选择.................................................... ......21 4.4 轴承的选择.............................................. ..........21 4.5 主轴组件................................................ .. .......21 4.6 润滑系统.......................................... ................21 4.7 密封装置..................................................... .....22 5 结论... ...............................................................23 致谢语... ...............................................................24 参考文献. ...............................................................25