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中國(guó)礦業(yè)大學(xué)2007屆本科生畢業(yè)設(shè)計(jì) 第 II頁(yè)
摘要
掩護(hù)式支架作為上世紀(jì)70年代初剛出現(xiàn)的產(chǎn)品，其顯著特征是在頂梁末端和底座之間附加有掩護(hù)梁。掩護(hù)梁一般是傾斜的，鉸接在頂梁和底座之間。從運(yùn)動(dòng)學(xué)講，它是穩(wěn)定的，這是掩護(hù)式支架最優(yōu)于框式支架和垛式支架的一點(diǎn)，掩護(hù)梁也完全封閉了采空區(qū)，從而能夠防止破碎頂板巖石掉入支撐工作面。因此，一般來(lái)說(shuō)，掩護(hù)式支架的支撐工作面是較清潔的。
本文主要介紹了：液壓支架的發(fā)展歷程及發(fā)展趨勢(shì)；液壓支架的組成、作用和分類(lèi)；液壓支架的液壓控制系統(tǒng)；液壓支架設(shè)計(jì)的一般步驟；液壓支架的操縱、維護(hù)、故障分析及處理等。在ZY8600型液壓支架的設(shè)計(jì)過(guò)程中，著重對(duì)頂梁、底座和立柱進(jìn)行了分析和設(shè)計(jì)，同時(shí)對(duì)液壓支架的液壓系統(tǒng)進(jìn)行了介紹。根據(jù)其常見(jiàn)失效形式、影響因素及基本設(shè)計(jì)要求，給出了重要結(jié)構(gòu)件的受力分析、強(qiáng)度和剛度的設(shè)計(jì)方法。在該支架的四連桿機(jī)構(gòu)設(shè)計(jì)中，采用了計(jì)算機(jī)求解。對(duì)立柱和平衡千斤頂進(jìn)行了強(qiáng)度和穩(wěn)定性效核。
關(guān)鍵詞：液壓支架、ZY8600、掩護(hù)式、結(jié)構(gòu)設(shè)計(jì)、采煤機(jī)械
ABSTRACT
Stand cover of the last century as the early 1970s emerging products, the notable features of the top beam between the terminal and the base of attaching a shield. Cover is generally inclined beams, the hinged roof beams and between the base. Kinematics from the speakers, it is stable, which is the optimal shield in the box-stent and the stent Crib 1:00, Leung also cover is closed goaf, so as to prevent the rock into the broken roof support Face. Therefore, in general, cover Stand Face the support of the cleaner.
This paper describes : hydraulic supports the development process and development trends; Hydraulic support the composition, role and classification; hydraulic supports the hydraulic control system; hydraulic supports the general design steps; hydraulic supports manipulation, maintenance, Fault analysis and processing. In ZY8600-hydraulic support the design process, focusing on the top beam and column base and the analysis and design Meanwhile hydraulic supports the right hydraulic system was introduced. According to their common failure mode, influencing factors and basic design requirements, is an important structure the force. Strength and stiffness of the design method. The stent in the four-bar linkage design, using a computer to solve. Column right balance between Jack and the strength and stability of nuclear efficiency.
Keywords : hydraulic support, ZY8600, shield, structural design, mechanical mining