设计描述：

文档包括:
word版设计说明书一份，共79页，约23000字
外文翻译一份
任务书一份
开题报告一份

CAD版本图纸，共8张

摘 要
本次毕业设计的主要任务是设计一台300米履带式液压水井钻机，钻孔口径为152-305mm。整个钻机的设计主要由动力头、钻架、底盘，履带行走机构和液压系统等部件的设计组成。与以往常见钻机相比，本次设计的300米潜水井钻机采用履带式液压驱动行走系统，行动更加灵活，更能适应潮湿等恶劣环境。动力头的主体结构也做了较大改动，延长了主轴使用寿命，动力头采用整体浮动结构形式，在接卸钻杆时有效的保护了接头螺纹，减少了钻杆的损坏。
本文所研究的主要是动力头部分设计。动力头部分也是整个钻机最重要的部分，而齿轮和主轴的设计又关系整个动力头的使用情况，故文中对齿轮和主轴进行了详细的校核计算，主轴末端的密封也是本设计的一个重点，主要体现在自紧密封圈的设计上。箱体采用钢板焊接方式制成，在满足使用要求的前提之下，还降低了制造成本。

关键词：齿轮设计；自紧密封；强度校核

Abstract
This graduation project primary mission is designs a 300 meter marching hydraulic pressure water well drilling machine, the drill hole caliber is 152-305mm.The entire drilling machine design mainly by the power head, the drill tower, the chassis, the caterpillar band walks part and so on organization and hydraulic system designs is composed. With formerly was common the drilling machine to compare, this design 300 meters dived the water well drilling machine to use the marching hydraulic pressure actuation undercarriage system, the motion are more flexible, could adapt and so on moistly the adverse circumstance. The power head main body structure also did modified greatly, lengthens the main axle service life, the power head has used the whole fluctuation structural style, when picked up and unload the drill rod the effective protection attachment thread, reduced the drill rod damage.
This article studies mainly is the power head part design. The power head part also is the entire drilling machine most important part, but the gear and the main axle design relates the entire power head the service condition, therefore in the article the counter gear and the main axle have carried on the detailed examination computation, the main axle terminal seal also are a this design key point, mainly manifests in from in the tight seal packing collar design. The box body uses the steel plate welding manner to make, in satisfies the operation requirements under the premise, but also reduced the production cost.

Keyword：Gear design; From tight seal; Intensity examination

目    录
摘 要 I
Abstract II
1绪  论 1
1.1水井钻探概述 1
1.2冲击回转转进简介 4
1.3动力头式钻机简介 5
2设计技术要求 11
2.1设计原始数据 11
2.2设备的工作环境 11
2.3设计要求 11
3钻机的总体方案设计 12
3.1动力装置的选择 12
3.2传动系统的选择 13
3.3钻机的总体布置 13
4动力头整体分析 16
4.1主要参数的确定 16
4.2结构方案设计 16
5动力头部件设计 20
5.1液压马达选型 20
5.2计算传动比 22
5.3计算传动装置的运动和动力参数 22
5.4齿轮的设计 23
5.5主轴的设计 32
5.6键的设计与校核 39
5.7轴承端盖的设计 40
5.8轴承的选择及强度校核 41
5.9动力头箱体的设计 46
5.10密封设计 47
5.11其他附件的选型设计 49
6液压系统设计 50
7钻机经济性分析 53
7.1钻机的技术评价 53
7.2钻机的经济性分析 53
参考文献 54
致 谢 55
附 录 56