本文選題：月表鉆探 + 螺旋鉆桿�。� 參考：《中國地質(zhì)大學(xué)(北京)》2015年碩士論文

【摘要】：本文以中國探月工程第一階段三期任務(wù)月表無人鉆探采樣為背景,為解決由于月球表面的特殊環(huán)境而造成無法運用在地球環(huán)境下傳統(tǒng)的鉆探方法來完成鉆探取樣任務(wù)這一技術(shù)難題。在充分了解綜述了國外月表鉆探取樣成功經(jīng)驗基礎(chǔ)上,結(jié)合我國此領(lǐng)域研究現(xiàn)狀提出了一套適用于月球表面工況的鉆探工藝方案。首先對月表環(huán)境進(jìn)行分析,依據(jù)月壤物理參數(shù)理論計算出鉆探所需相關(guān)技術(shù)參數(shù),然后結(jié)合月球鉆探取心裝置總體設(shè)計要求,提出兩種機械結(jié)構(gòu)的鉆機動力頭方案。分析對比各方案的優(yōu)缺點及可行性,進(jìn)而確定出本課題所設(shè)計研究的鉆機動力頭基本結(jié)構(gòu)。根據(jù)后續(xù)試驗要求詳細(xì)設(shè)計動力頭結(jié)構(gòu)。根據(jù)已定月表鉆探工藝來確定出了配套鉆具的基本結(jié)構(gòu)為空心外螺旋鉆桿,并且根據(jù)實驗要求和參考國外月球鉆探相關(guān)鉆具結(jié)構(gòu),設(shè)計加工出了一系列不同螺距的單、雙螺旋試驗鉆桿。依據(jù)動力頭輸出軸、傳感器軸和鉆桿接頭的結(jié)構(gòu)以及各自的功能,設(shè)計出了連接各部分的快裝接頭。最后按照試驗平臺的功能要求對測試系統(tǒng)以及試驗臺架進(jìn)行了設(shè)計和選型,以便滿足進(jìn)行不同鉆進(jìn)試驗時的功能要求。對月球取樣鉆探平臺進(jìn)行設(shè)計加工,組裝調(diào)試完成后,首先對試驗臺本身進(jìn)行檢測,在滿足其設(shè)計要求后,進(jìn)行對鉆機動力頭機械性能、配套鉆具規(guī)格和鉆探相關(guān)技術(shù)參數(shù)選定的試驗。通過試驗在相同條件下不同螺距的單、雙螺旋鉆桿對鉆探效率的影響,從而選出適合與鉆機配套的螺旋鉆具類型;通過分別控制不同的鉆壓、鉆機回轉(zhuǎn)速度以及沖擊頻率來進(jìn)行模擬鉆探試驗,分析對比實驗數(shù)據(jù),選出適合于所設(shè)計鉆機工作的最佳鉆壓、回轉(zhuǎn)速度和沖擊頻率的范圍。最后,根據(jù)試驗所得結(jié)論與理論計算,重新設(shè)計鉆機動力頭結(jié)構(gòu),并對鉆機材料進(jìn)行選型,達(dá)到結(jié)構(gòu)緊湊、體積輕便、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.
【學(xué)位授予單位】：中國地質(zhì)大學(xué)(北京)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P184.5;P634

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本文編號：1861967