设计描述：

文档包括:

设计word版本说明书一份，共41页，约14000字

CAD版本图纸，共23张

 
目录
0引言 1
1.主传动设计 3
1.1主传动方案 3
1．1．1传动布局 3
1．1．2变速方式 3
1．1．3传动系统 3
1．1．4设计原则 3
1．2主传动运动设计 4
1．2．1制定工艺方案 4
1．2．2确定切削用量 5
1．2．3传动计算 6
2．主轴设计 9
2．1 结构设计 9
2．1．1确定切削力、切削扭矩、切削功率及刀具耐用度 9
2．1．2初步估算轴的直径 10
2．1．3 轴的结构分析及轴上零件的固定 11
2．2 轴的强度校核 12
2．3 轴的刚度校核 18
3．齿轮的设计 21
3．1齿轮的结构分析 21
3．2 齿轮传动主要参数的选择 21
3．2．1 压力角a的选择 21
3．2．2 齿数和模数的选择 22
3．2．3 传动比和齿数比 22
3．2．4齿宽系数￠d 22
3．3 齿轮的精度设计 23
3.4齿轮传动的强度计算 27
4． 分配箱及其附件 30
4．1 箱体的结构型式 30
4．1．1 铸造箱体 30
4．1．2 铸造箱体的结构分析 30
4．1．3 箱体的结构尺寸 30
4．2分配箱附件的选择及结构 31
4．2．1 油标 31
4．2．2排油孔螺塞 31
4．2．3 起吊装置 33
4．2．4 定位销 33
5．分配箱的润滑和密封 34
5．1分配箱的润滑 34
5．1．1齿轮的润滑 34
5．1．2轴承的润滑 34
5．2分配箱的密封 35
6.结论 36
致谢 37
参考文献 38
附件清单 39

摘 要
本设计是在搜集大量台式车床车头箱孔系加工工艺资料的基础上，根据被加工箱体孔系的结构特点、尺寸精度、表面粗糙度和技术要求、定位夹紧方式、工艺方法和加工过程中所采用的刀具和辅具、切削用量情况以及生产率要求等，按照工序集中的原则而设计出来的一种高效率的台式车床车头箱孔系加工分配箱机构。设计传动系统时，尽可能地减少了主轴、传动轴和传动齿轮的数量；设计各分主轴转速时，只考虑能与工件被加工孔径相匹配，而由车床车头箱变速来使个分主轴得到比较合理的切削速度；设计分配箱轴承支墙跨度时，由于采用浮动联接镗杆，加工精度由镗模保证，跨度只需满足变速齿轮安装的必要空间。经实例计算证明，该机构具有“体积小、重量轻、结构简单、使用方便、效率高、质量好”的特点。

关键词：分配箱 台式车床车头箱 工序集中

Abstract
Designing and collectting a large number of desk-top lathe locomotive case hole department processing technology foundation of materials originally, according to processing the structure characteristic of the hole department of body of case, size precision, the roughness of surface and specification requirement, make a reservation and clamp way, craft method and cutter and complement and have, cut quantity situation and productivity not to require etc. that adopt in the course of processing, Design according to principle that process concentrate on one that come out desk-top lathe locomotive case hole department of high efficiency processes and assigns the organization of the case. While designing the transmission, have reduced the quantity of main shaft, drive shaft and transmission gear wheel to the best of one's ability; Design every main shaft on the rotational speed, consider and can process with work piece aperture match only, and is changed speed to make main shafts get the more rational speed of cutting by the locomotive case of the lathe; Design and assign case bearing prop up wall when the span, because adopt and float to link and bore the pole, machining accuracy bore mould guarantee span need and satisfy and change speed essential space that the gear wheel is installed only. Calculate and prove by instance organization this have characteristic on" small, light, the structure is simple, easy to use, efficiency is high, high in quality".

Keyword: The distributed case Desk-top lathe locomotive case The centralized process