论文总字数：24473字

摘 要

本文结合钻杆输出参数与工作要求，提出了动力箱传动机构的细化方案，并基于载荷分析和强度理论，进行了动力箱传动的主参数设计。进行了动力箱的结构设计，完成了部件图和主要零件图。

最后文中采用有限元法，对动力箱关键零件进行受力分析并对设计不足之处进行改进和优化。

本文根据有限元法，利用ANSYS分析功能对动力箱关键零件进行有限元分析，并根据所分析的结果了解关键零件的受力情况，以此对设计的结果。

关键词：非开挖技术；水平定向钻；动力箱；强度设计；可靠性分析

Design and Reliability Analysis of Power Box Horizontal Directional Driller

02011332 Ma Shaohuan

Supervised by Chen Minhua

Abstract: This paper will presents design process of the drive power box of 60 tons horizontal directional drilling and the finite element analysis process and results of its box. Directional technology is one of lying of underground excavation of a pipeline. In recent years, this technology has been widely used in telecommunications, electricity, gas, water and other underground pipeline construction and the old pipelines transformation tasks. Because this method has many advantage but traditional method not, the most prominent is its minimal environmental damage. And the most popular methods is small directional driller, and as China's economic development, the demand of large Directional drilling is increasing, and in this regard our country's technology with international standards also has a big distance.

Based on the drill pipe output parameters and the job requirement, puts forward power box transmission mechanism of twenty-first-century project, and based on the load analysis and strength theory, the main parameters of transmission of power box design. Finish the dynamic design of the box, and completed a map and the major components parts map.

Finally, this article, based on the finite element method for power box in finite element modeling, body static analysis and reliability analysis, and the performance evaluation.

In this paper, ANSYS finite element method based on the probability analysis of the function of the reliability analysis, and according to the analysis of the reliability design of boxes of the reconstruction. a practice broke traditional according to the design of safety coefficient in a certain extent, according to the required reliability design, compared with the traditional design method, will save material, make the design of boxes of simple, save material, at the same time can satisfy the use requirement.

Key Words: Trenchless technology; horizontal directional drilling; power box; strength design; reliability analysis

目录

第一章 绪论

1.1水平定向钻的技术发展动态和趋势........................................1

1.2水平定向钻的应用前景..................................................1

1.3选题的背景和意义......................................................2

1.4本文的主要工作........................................................2

第二章 水平定向钻机动力头箱体结构的设计.....................................3

2.1动力箱旋转运动的分析与设计............................................4

2.1.1旋转运动的分析..................................................4

2.1.2传动方式的选定 .................................................4

2.2动力箱进给运动的分析与设计............................................4

2.2.1进给运动方式的分类及其特点......................................5

2.2.2进给运动方案的选定..............................................5

2.3旋转运动各传动数据的确定..............................................8

2.4进给运动各传动数据的确定..............................................9

2.5箱体机构数据的确定...................................................12

2.6本章小结.............................................................13

第三章 关键零件的建模与有限元分析..........................................14

3.1关键零件的建模.......................................................15

3.1.1有限元建模的准则...............................................15

3.1.2关键零件的建模.................................................15

3.2边界条件的处理.......................................................16

3.3网格的划分...........................................................17

3.4加载.................................................................18

3.5求解.................................................................19

3.6分析.................................................................20

3.6.1旋转运动机构中的主动齿轮.......................................20

3.6.2旋转运动机构中的从动齿轮.......................................20

3.6.3旋转运动机构中的轴.............................................22

3.6.4进给运动机构中的齿轮...........................................23

3.7本章小结.............................................................25

第四章 设计成果与展望......................................................26

4.1设计成果............................................................27

4.2展望................................................................28

致谢..........................................................................29

参考文献......................................................................30

水平定向钻机动力头箱体设计及关键零件有限元分析

1.绪论

水平定向钻进技术是1980年左右在发达国家的新兴产业，由于地铁工程和当时控制技术和通讯技术的飞速发展，水平定向钻机发展十分迅猛。

1.1 水平定向钻进技术的发展和发展趋势

（１）钻 机 的 大 型 化和微型化：1980年左右，由于社会不断发展，大型管道石油天然气、污水等穿越大江大河的大型工程不断增多，当 前市面上的大型定向钻机的回拖力已经高达100吨，仅仅在美国生产回拖力超过1000kN的大型定向钻机 就有7家，美国的Augers公司还设计出世 界上最大的水平定向钻机，型号：D.D-1300型，其回拖力高达6000KN。D.D-1300水平定向钻机用 两台750马力的柴油机带动，其扭 矩达180KNm；然而，由于国家城市化，为了在 繁华市区的狭窄街 道施工，对小型钻机和微型钻机的需 求也正急剧增加，例如可以在狭小 的地下室进行铺管工 作的微型和小型定向钻机。

　　（２）硬岩施工：用于硬岩钻进的新型定向钻具和碎岩用钻具，配合随钻测量技术，并目前在美国大规模使用的有石油钻进技术中必不可少的螺杆钻具和泥浆马达，如美国奥格公司的定向钻机。在硬岩破碎这一块，也引进了水陆两种钻进方式的干式钻进，主要应用于潜孔锤钻进工艺。如来自英国P.W.M公司的P.M一系列水平定向钻机和Stevevick国际公司的导向钻机。另外，美国Ditchwitch公司的双管钻进系统和德国Double.T公司的在顶部冲击状况下加回转钻进的系统也可适应含硬岩的地层的钻进。

剩余内容已隐藏，请支付后下载全文，论文总字数：24473字