月球取样钻探平台的研制及模拟试验研究

发布时间：2018-05-08 15:33

本文选题：月表钻探 + 螺旋钻杆　；参考：《中国地质大学(北京)》2015年硕士论文

【摘要】：本文以中国探月工程第一阶段三期任务月表无人钻探采样为背景,为解决由于月球表面的特殊环境而造成无法运用在地球环境下传统的钻探方法来完成钻探取样任务这一技术难题。在充分了解综述了国外月表钻探取样成功经验基础上,结合我国此领域研究现状提出了一套适用于月球表面工况的钻探工艺方案。首先对月表环境进行分析,依据月壤物理参数理论计算出钻探所需相关技术参数,然后结合月球钻探取心装置总体设计要求,提出两种机械结构的钻机动力头方案。分析对比各方案的优缺点及可行性,进而确定出本课题所设计研究的钻机动力头基本结构。根据后续试验要求详细设计动力头结构。根据已定月表钻探工艺来确定出了配套钻具的基本结构为空心外螺旋钻杆,并且根据实验要求和参考国外月球钻探相关钻具结构,设计加工出了一系列不同螺距的单、双螺旋试验钻杆。依据动力头输出轴、传感器轴和钻杆接头的结构以及各自的功能,设计出了连接各部分的快装接头。最后按照试验平台的功能要求对测试系统以及试验台架进行了设计和选型,以便满足进行不同钻进试验时的功能要求。对月球取样钻探平台进行设计加工,组装调试完成后,首先对试验台本身进行检测,在满足其设计要求后,进行对钻机动力头机械性能、配套钻具规格和钻探相关技术参数选定的试验。通过试验在相同条件下不同螺距的单、双螺旋钻杆对钻探效率的影响,从而选出适合与钻机配套的螺旋钻具类型;通过分别控制不同的钻压、钻机回转速度以及冲击频率来进行模拟钻探试验,分析对比实验数据,选出适合于所设计钻机工作的最佳钻压、回转速度和冲击频率的范围。最后,根据试验所得结论与理论计算,重新设计钻机动力头结构,并对钻机材料进行选型,达到结构紧凑、体积轻便、效率高功耗低等目的。
[Abstract]:This paper is based on the unmanned drilling sampling of the lunar table in the first phase of the Chinese lunar exploration project. In order to solve the technical problem that the traditional drilling method can not be used in the earth environment to complete the drilling sampling task due to the special environment of the lunar surface. On the basis of fully understanding and summarizing the successful experiences of foreign moon surface drilling, a set of drilling technology scheme suitable for lunar surface working condition is put forward according to the present situation of this field in China. Based on the analysis of the lunar surface environment and the theory of lunar soil physical parameters, the relevant technical parameters for drilling are calculated, and then two schemes of drilling rig power head with mechanical structure are put forward according to the overall design requirements of the coring device for lunar drilling. The advantages, disadvantages and feasibility of each scheme are analyzed and compared, and the basic structure of drilling rig power head designed and studied in this paper is determined. The structure of power head is designed in detail according to the requirement of subsequent test. According to the fixed moon surface drilling technology, the basic structure of the matching drilling tool is determined as hollow outer helical drill pipe. According to the experimental requirements and referring to the relevant drilling tool structure of foreign lunar drilling, a series of single drilling tools with different pitch are designed and processed. Double helix test drill pipe. According to the structure of the output shaft of the power head, the sensor shaft and the drill pipe joint and their respective functions, the fast assembly joint connecting each part is designed. Finally, according to the functional requirements of the test platform, the test system and the test bench are designed and selected to meet the functional requirements of different drilling tests. The lunar sampling drilling platform is designed and processed. After assembling and debugging, the test rig itself is first tested. After meeting the design requirements, the mechanical properties of the power head of the drilling rig are carried out. Test of matching drilling tool specification and drilling related technical parameters. By testing the effect of single and double helical drill pipes on drilling efficiency under the same conditions, the types of helical drilling tools suitable for matching with drilling rig are selected, and the different drilling forces are controlled respectively. The drilling rig rotary speed and impact frequency are used to carry out the simulation drilling test, and the optimum drilling pressure, rotary speed and impact frequency are selected by comparing the experimental data. Finally, according to the experimental results and theoretical calculation, the structure of drilling rig power head is redesigned, and the material of drilling rig is selected to achieve the purpose of compact structure, light volume, high efficiency and low power consumption.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P184.5;P634

【二级参考文献】