液压支架的设计 毕业论文 (2)

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1、液压支架摘要本论文主要任务是论述液压支架的主要设计过程。分析了液压支架的组成和工作原理，并对以下内容做了设计计算：液压支架的选型设计、主要参数的确定、主要零部件的设计及强度校核。根据所要求的支撑条件，采用掩护式液压支架形式。本支架针对较薄煤层赋存特点，结构紧凑，支撑效率高。支架采用四连杆机构，改善支架的受力状况，缩小支架升降过程中的顶梁前端前后移动的距离。立柱采用双伸缩液压缸，以满足支架最低及最高位置时的高度要求。平衡千斤顶采用2个Φ125mm缸径千斤顶，增加了平衡千斤顶作用可靠性以及连接装置的可靠性。底座采用中封式整体刚性底座，既可保证推移机构能顺利排出浮煤，又可提高支架整体刚

2、度。【关键词】：液压支架四连杆立柱顶梁底座XLV液压支架AbstractInthispaper,themaintaskistothemaindesignprocessofhydraulicsupport.Analysisofthecompositionandworkingprincipleofhydraulicsupport,andthecontentofthedesigncalculation:Designandstrengthcheckofthemainparameterselectionanddesign,hydraulicsupport,todeterminethemai

3、ncomponentsofthe.Accordingtothesupportcondition,usingthecoverofhydraulicsupportform.Thesupportofthethincoalseamcharacteristics,compactstructureforhighefficiency,support.Thesupportusesfourrodmechanism,improvesthesupportthestresscondition,narrowthedistancebetweenthemobileandthefrontendofthetopb

4、eamoftheliftingbracket.Thecolumnusesthedoubletelescopichydrauliccylinder,tomeettheminimumandmaximumpositionbracketheightrequirements.Theequilibriumjackwith2125mmcylinderdiameterincreasestheequilibriumjackjack,functionandreliabilityconnectiondevice.Thebaseusedinsealingtheoverallrigidbase,noton

5、lycanensurethepushmechanismcanbeexhaustedfloatcoal,butalsocanimprovetheoverallstiffnessofscaffold.XLV液压支架[keywords]:fourbarlinkageofhydraulicsupportuprightbeam.目录摘要..........................................................2Abstract.......................................................3第1章引言.

6、.............................................71.1液压支架的组成............................................71.2液压支架的支护方式......................................81.3液压支架的工作原理......................................91.3.1支架升降和推.........................................91.3.2支架的承载过程.........................

7、..............101.4.1采煤工作面对液压支架的设计要求.......................101.4.2液压支架设计的基本参数..............................11第2章液压支架整体结构设计................................122.1支架的高度和支架的伸缩比.............................122.1.2支架间距和宽度的确定.........................