本文選題：鏈?zhǔn)匠橛蜋C(jī) + 換向系統(tǒng)　； 參考：《中國礦業(yè)大學(xué)》2015年碩士論文

【摘要】：作為一種長沖程節(jié)能型抽油機(jī),鏈?zhǔn)匠橛蜋C(jī)在高含水中后期油田石油的開采工作中能發(fā)揮其長沖程、低沖次的優(yōu)勢。然而,就目前鏈?zhǔn)匠橛蜋C(jī)的服役狀況來看,其核心結(jié)構(gòu)——換向系統(tǒng)故障率較高,導(dǎo)致該型號抽油機(jī)沒能夠被大面積推廣。因此,還需要進(jìn)一步的對鏈?zhǔn)匠橛蜋C(jī)進(jìn)行理論研究和結(jié)構(gòu)改進(jìn)。論文研究內(nèi)容主要包括以下幾個方面:(1)通過對傳統(tǒng)鏈?zhǔn)匠橛蜋C(jī)換向系統(tǒng)受力分析,發(fā)現(xiàn)換向系統(tǒng)容易失效的主要原因,并在此基礎(chǔ)上提出使用對稱式雙鏈條同步運(yùn)行機(jī)構(gòu)取代傳統(tǒng)的單側(cè)鏈換向機(jī)構(gòu);建立了考慮鏈傳動的多邊形效應(yīng)的鏈?zhǔn)匠橛蜋C(jī)運(yùn)動學(xué)和懸點(diǎn)載荷方程,為鏈?zhǔn)匠橛蜋C(jī)的制造提供更可靠的理論依據(jù)。(2)分別研究了沖程、沖次、鏈條預(yù)緊力和多邊形效應(yīng)對鏈?zhǔn)匠橛蜋C(jī)運(yùn)動性能的影響;通過建立鏈?zhǔn)匠橛蜋C(jī)的三維簡化模型,對其進(jìn)行了多體動力學(xué)仿真分析。(3)在實(shí)驗(yàn)室條件下,設(shè)計(jì)并制作了一臺鏈?zhǔn)匠橛蜋C(jī)樣機(jī),基于此樣機(jī)進(jìn)行了相關(guān)室內(nèi)測試。由于缺少具體的井下參數(shù)和動載荷模擬設(shè)備,所以僅在靜載荷條件下對懸點(diǎn)沖程、速度、加速度、運(yùn)行噪音、電機(jī)輸出功率等參數(shù)進(jìn)行了測試。實(shí)驗(yàn)結(jié)果表明,所設(shè)計(jì)的新型鏈?zhǔn)匠橛蜋C(jī)能夠?qū)崿F(xiàn)換向功能,懸點(diǎn)運(yùn)行規(guī)律符合本文所建立的運(yùn)動學(xué)方程。同時,當(dāng)運(yùn)行沖次在合理范圍內(nèi)時,工作中不會產(chǎn)生過大的運(yùn)行噪音和機(jī)械振動。作為我國自主研發(fā)的一款無游梁式抽油機(jī),鏈?zhǔn)匠橛蜋C(jī)的研究應(yīng)用技術(shù)還不夠成熟,大面積推廣使用還有一定的困難。本文的研究成果雖然有限,但是研究方法及成果對鏈?zhǔn)匠橛蜋C(jī)的進(jìn)一步更新具有一定的參考價值。
[Abstract]:As a kind of long stroke energy saving pumping unit, chain pumping unit can play its advantage of long stroke and low impact times in the production of oil field in the middle and late period of high water cut. However, from the point of view of the service condition of the chain pumping unit, the breakdown rate of its core structure-commutator system is relatively high, which leads to the failure of this type pumping unit to be popularized in a large area. Therefore, further theoretical research and structural improvement of the chain pumping unit are needed. The main contents of this paper are as follows: (1) through the analysis of the forces on the traditional chain pumping unit reversing system, the main reasons for the easy failure of the commutator system are found. On the basis of this, a symmetrical double chain synchronous operation mechanism is proposed to replace the traditional one side chain reversing mechanism, and the kinematics and suspension load equations of the chain pumping unit considering the polygon effect of the chain drive are established. To provide a more reliable theoretical basis for the manufacture of chain pumping units, the effects of stroke, chain preload and polygon effect on the motion performance of chain pumping unit are studied respectively, and the simplified three-dimensional model of chain pumping unit is established. A prototype of a chain pumping unit is designed and manufactured under the condition of laboratory. Based on this prototype, relevant laboratory tests are carried out. Due to the lack of specific downhole parameters and dynamic load simulation equipment, the parameters of suspension stroke, speed, acceleration, operating noise and motor output power are tested only under static load conditions. The experimental results show that the new type of chain pumping unit can realize commutative function and the running law of suspension points accords with the kinematics equation established in this paper. At the same time, when the running impulse is within a reasonable range, there will be no excessive operating noise and mechanical vibration. As a kind of non-beam pumping unit developed independently in our country, the research and application technology of chain pumping unit is not mature enough, and it is difficult to popularize it in a large area. Although the research results in this paper are limited, the research methods and results have a certain reference value for further updating of chain pumping units.
【學(xué)位授予單位】：中國礦業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TE933.1

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本文編號：1947940