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1、摘要木論文題口來(lái)源于煤礦綜合機(jī)械化采煤成套設(shè)備的液壓支架研究設(shè)計(jì)，主要任務(wù)是論述液壓支架的主要設(shè)計(jì)過(guò)程。本文在詳述液壓支架發(fā)展丿刃史及國(guó)內(nèi)發(fā)展現(xiàn)狀的基礎(chǔ)上，分析了液壓支架的組成和工作原理，并對(duì)一下內(nèi)容做了設(shè)計(jì)計(jì)算：液壓支架的選型設(shè)計(jì)、主要參數(shù)的確定、主耍零部件的設(shè)計(jì)及強(qiáng)度校核。根據(jù)所要求的支撐條件，采用掩護(hù)式液壓支架形式。木支架針對(duì)較薄煤層賦存特點(diǎn)，結(jié)構(gòu)緊湊，支撐效率高。支架采用四連桿機(jī)構(gòu)，改善支架的受力狀況，縮小支架升降過(guò)程屮的頂梁前端前后移動(dòng)的距離。立柱采用雙伸縮液壓缸，以滿足支架最低及最高位置時(shí)的高度要求。平衡千斤頂采用2個(gè)①125mm缸徑千斤頂
2、，增加了平衡千斤頂作用可靠性以及連接裝置的可靠性。底座采用屮封式整體剛性底座，既可保證推移機(jī)構(gòu)能順利排出浮煤,乂可提高支架整體剛度。關(guān)鍵詞：液壓支架；四連桿；立柱；頂梁；底座AbstractThetaskofthegraduationdesigncomesfromcoalmechanizedcoalminingequipmentresearchanddesignofhydraulicsupport,themaintaskistodiscussthemainhydraulicdesignprocess.Thispaperdetailsthehistory
3、anddevelopmentofhydraulicsupportdomesticdevelopmentstatus,basedonanalysisofthecompositionandhydraulicworks,andwhatcontenttodothedesigncalculations:selectionofhydraulicdesigntodetenninethemainparametersofthemaincomponentsThedesignandstrengthcheck?Accordingtothesupportrequiredbyth
4、econditions,usingthecoverofhydraulicsupportform.Thesupportforthethincoalseamcharacteristics,compactstructure,supportandhighefficiency.Supportafour-linkmechanism,toimprovethesupportoftheloadingforce,theprocessofnarrowingdownthetopsupportbeambeforeandafterthemoveawayfromthefront.C
5、olumnbydoubletelescopichydrauliccylinder,tomeettheminimumandmaximumpositionbracketheightrequirements.Balancedbytwo①125mmborejackjack,jacktheroleofincreasedreliabilityandbalancetheconnectingdevicereliability.Baseusedinsealingtheoverallrigidbase,organizationscanensureasmoothdischa
6、rgefloatingovercoal,butalsoimprovetheoverallstiffnessofscaffold.Keywords:hydraulicpressuresupport;uprightfour-linkmechanism;prop;Top-beam;foundation摘要IAbstractII1緒論11?1國(guó)外液壓支架的發(fā)展丿力史11?2我國(guó)液壓支架的發(fā)展21.3液壓支架的組成31.4液壓支架的支護(hù)方式41?5液壓支架的工作原理51.5.1支架升降和推移51.5.2支架的承載過(guò)程61.6采煤工作面液壓支架設(shè)計(jì)要求和設(shè)計(jì)必要的
7、基本參數(shù)71.6.1采煤工作面對(duì)液壓支架的設(shè)計(jì)要求71.6.2液壓支架設(shè)計(jì)的基本參數(shù)72液壓支架整體結(jié)構(gòu)設(shè)計(jì)92.1支架主要尺寸的確定92.1.1支架的高度和支架的伸縮比92.1.2支架間距和寬度的確定102?2支架四連桿機(jī)構(gòu)的確定112.2.1四連桿機(jī)構(gòu)的作用112.2.2四連桿機(jī)構(gòu)設(shè)計(jì)的要求112.3四連桿機(jī)構(gòu)的幾何作圖法142.4頂梁長(zhǎng)度的確定172.4.1支架工作方式對(duì)頂梁長(zhǎng)度的影響172.4.2頂梁長(zhǎng)度計(jì)算183立柱結(jié)構(gòu)設(shè)計(jì)和強(qiáng)度計(jì)算202.1雙伸縮立柱缸徑和工作阻力的確定202.1.1雙伸縮雙作用立柱缸徑的確定202.1.2泵站壓力的確定2
8、11.1?3立柱初撐力的計(jì)算211.1.4安全閥壓力與立柱工作阻力的計(jì)算223.1.5立柱缸體
