本文選題：液壓鑿巖系統(tǒng)　切入點(diǎn)：配置　出處：《長沙礦冶研究院》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：液壓鑿巖鉆車是地下金屬礦山鑿巖鉆孔的主要設(shè)備之一,其鑿巖鉆進(jìn)系統(tǒng)配置合理與否直接決定了鉆進(jìn)效率和釬具的壽命。本文基于地下采礦鉆車,采用波動(dòng)力學(xué)、沖擊動(dòng)力學(xué)理論、多目標(biāo)優(yōu)化算法和試驗(yàn)驗(yàn)證相結(jié)合的方法,對(duì)其液壓鑿巖系統(tǒng)配置進(jìn)行研究。首先,利用波動(dòng)力學(xué)理論對(duì)常見的幾種鑿巖機(jī)入射應(yīng)力波進(jìn)行了分析和比較,研究表明液壓鑿巖機(jī)產(chǎn)生的入射應(yīng)力波形是一種平緩理想的應(yīng)力波形,選擇用直徑較大的釬桿可以降低最大應(yīng)力峰值。根據(jù)沖擊鉆進(jìn)動(dòng)力學(xué)得出的鑿巖系統(tǒng)的鑿入特性,對(duì)液壓鑿巖機(jī)鑿入效率進(jìn)行了分析。比較分析了當(dāng)前常見的液壓鑿巖機(jī)在配置不同直徑釬桿時(shí)的最大鑿入效率值,并得出活塞和釬桿等直徑時(shí),能有最大鑿入效率。其次,從液壓鑿巖系統(tǒng)的鑿速和釬具壽命兩性能指標(biāo)入手,建立了鑿速和釬桿壽命數(shù)學(xué)計(jì)算模型,對(duì)相關(guān)影響因素進(jìn)行了分析,得出影響鑿速和釬桿壽命的相關(guān)因素之間存在相互影響、相互制約的關(guān)系。為了提高液壓鑿巖系統(tǒng)的整體性能,利用多目標(biāo)優(yōu)化算法對(duì)液壓鑿巖系統(tǒng)配置進(jìn)行優(yōu)化。以鑿速和釬桿壽命為目標(biāo)函數(shù),將最優(yōu)推進(jìn)力和最優(yōu)轉(zhuǎn)速作為約束條件,建立多目標(biāo)優(yōu)化模型,并利用遺傳算法求解計(jì)算。最后,利用臥式鑿巖試驗(yàn)臺(tái)分別對(duì)HYD300液壓鑿巖機(jī)配置不同直徑釬桿和調(diào)節(jié)不同液壓鑿巖機(jī)參數(shù)情況下的鑿速進(jìn)行測(cè)試,將測(cè)試結(jié)果與理論分析的結(jié)果進(jìn)行對(duì)比分析。本論文提出液壓鑿巖系統(tǒng)應(yīng)根據(jù)不同的鑿巖鉆孔條件選擇合適的工作性能參數(shù)和釬具,以使得液壓鑿巖系統(tǒng)能達(dá)到較優(yōu)的整體性能。本論文的研究對(duì)于提升液壓鑿巖系統(tǒng)的整體性能和經(jīng)濟(jì)性能具有一定的理論價(jià)值和工程指導(dǎo)意義。
[Abstract]:Hydraulic drilling rig is one of the main equipment for drilling in underground metal mines. Whether the drilling system is reasonable or not directly determines the drilling efficiency and the life of drill tools. Based on the underground mining rig, wave mechanics is used in this paper. The impact dynamics theory, multi-objective optimization algorithm and test verification are combined to study the configuration of hydraulic drilling system. Firstly, the incident stress waves of several kinds of rock drillers are analyzed and compared by means of wave mechanics theory. The research shows that the incident stress waveform produced by hydraulic rock drill is a kind of gentle ideal stress waveform, and the maximum stress peak value can be reduced by selecting the drill rod with large diameter. According to the drilling dynamics, the drilling characteristics of rock drilling system are obtained. This paper analyzes the drilling efficiency of hydraulic rock drill, compares and analyzes the maximum penetration efficiency of hydraulic rock drill with different diameters, and obtains the maximum penetration efficiency when piston and drill rod are equal in diameter. Starting with the two performance indexes of drilling speed and drill tool life of hydraulic drilling system, the mathematical calculation model of chisel speed and drill rod life is established, and the related influencing factors are analyzed. In order to improve the overall performance of hydraulic drilling system, it is concluded that there is a mutual influence and restriction relationship between the relevant factors affecting the chisel speed and the life of drill rod. The multi-objective optimization algorithm is used to optimize the configuration of hydraulic drilling system. Taking chiseling speed and drill rod life as objective functions, the optimal propulsion force and optimal rotational speed are taken as constraint conditions, and the multi-objective optimization model is established. Finally, the drilling speed of HYD300 hydraulic drilling machine with different diameter and adjusting the parameters of hydraulic drilling machine is tested by using horizontal rock drilling test rig, and genetic algorithm is used to solve the calculation. This paper puts forward that the hydraulic drilling system should select suitable working performance parameters and drilling tools according to different drilling conditions. In order to make the hydraulic drilling system achieve better overall performance, the research of this paper has certain theoretical value and engineering guidance significance for lifting the whole performance and economic performance of the hydraulic drilling system.
【學(xué)位授予單位】：長沙礦冶研究院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TD421.22

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本文編號(hào)：1598242