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井下瓦斯抽放钻机设计说明书.doc

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井下瓦斯抽放钻机设计说明书.doc

中国矿业大学2007届本科生毕业设计第1页目录1.1引言.....................................................................................................................41.2概述....................................................................................................................71.2.2钻机整体设计分析...................................................................................101.3钻机主要用途....................................................................................................101.4钻机组成部分.....................................................................................................101.5、钻机工作原理..................................................................................................112总体设计........................................................................................................122.1设计总则.....................................................................................................122.2已知条件....................................................................................................122.3马达的选择与计算...........................................................................................132.4液压缸.............................................................................................................172.4.1液压缸已知参数...........................................................................................182.4.2液压缸几何参数的计算................................................................................182.4.3液压缸性能参数的计算................................................................................193减速器的设计计算...............................................................................................223.1国外减速器现状.................................................................................................223.2国内减速器现状.................................................................................................233.3各级传动比分配及总传动比.............................................................................243.3.1总传动比........................................................................................................243.3.2传动比的分配.................................................................................................243.3.3传动系统的运动和动力参数计算.....................................................................243.4传动零件的计算.................................................................................................253.4.1ab齿轮副设计计算.....................................................................................253.4.2cd齿轮副...................................................................................................323.4.3ef齿轮副....................................................................................................384轴的设计及校核计算............................................................................................484.1花键轴的设计计算................................................................................484.2空心轴的设计计算....................................................................................524.3轴承的选择与校核计算.............................................................................564.4键的选择与校核计算..................................................................................584.4.1轴上键的选择与校核............................................................................584.5轴系部件的结构设计................................................................................594.5.1轴承盖的结构设计...................................................................................594.6轴外伸处的密封设计.........................................................................................614.7套筒的设计.....................................................................................................614.8减速器箱体的设计.............................................................................................624.9油面位置及箱座高度的确定...............................................................................645钻机其他部件的设计.............................................................................................64中国矿业大学2007届本科生毕业设计第2页5.1立柱的设计........................................................................................................645.2夹持架的设计.................................................................................................665.3机架的设计....................................................................................................666钻机的操作和日常维护........................................................................................666.1钻空操作.......................................................................................................666.2常见故障分析与处理方法..................................................................................676.3钻机的维护、保养.............................................................................................696.4井下安装试车....................................................................................................706.5下井运输.........................................................................................................706.6地面试车.........................................................................................................717结论.....................................................................................................................73致谢....................................................................................................................74参考文献.................................................................................................................75摘要1963年,设计民微型Hydrack钻机。这是一种非常轻而短的钻机,其行程为851mm。采用三速齿轮箱,其最大转矩为691Nm,有效钻孔推力为2145公斤。设计钻杆较小,直径为41.3mm,长为762mm,也带锥形螺纹接头,称为ET/A型钻杆。ET/A型和最初的ET/N型钻杆是抽放瓦斯的两种标准钻孔设备,现已包括在英国煤炭部第613/1974号样本中。钻机有一个带滑板的机架,由滑板支撑。钻头安装在滑座上,由液压马达、变速齿轮箱和推力套以及供水旋转接头组成。在机架内滑座下是液压缸。机架上钻孔末端的导向夹持器用来固定和支持钻杆。Hydrack钻机是由由组标准件装置组成动力设备这是一个装有液压油的油箱,下面有滑橇,便于运输。一台电动机和液压泵及其它辅助设备,如回油过滤器、安全阀、加油泵、油箱通气管以及湿度安全开关都安装在油箱上面。控制盘为四个装置中最小的。包含有钻孔功能的控制阀,指示转矩的压力计以及钻头上的钻进压力。装配式机架当准备钻孔时,机架支撑着钻机。机架形式多种以适应不同钻孔地形变化,有H型机架、A型机架和单支柱支座。后两项是根据钻机使用者提出来的要求设计的。液压油通过挠性液压软管从动力装置站输送到控制盘,然后进入钻机。中国矿业大学2007届本科生毕业设计第3页软管一般长4m,能适应各种装置的定位。关键词动力设备控制盘装配式机架ABSTRACTHydrackgasdrillingrigisthefirstfortheelectrohydraulicdrillingrig,therigbeforemostoftheairpowered.Drillpipeandbitbyahydraulicmotorthroughtherotatingsixspeedgearboxtobethrustintopowerandthetripfrom815mmtoachievethehydrauliccylinders,withrackandpinionsystemtoprocesswillbecarriedouttwice.Aboutthemosttorque949Nm,awaytoabout1702mmbitontheeffectivethrustofabout2,794kg.Diameterdrillpipedesignforthe60.3mm,forthe1524mmlongwithaconeshapedmaleconnector,commonlyknownasEF/Ntypedrillpipe.1963,thedesignofthemicroHydrackrig.ThisisaveryshortperiodofQingerdrillingrig,histripto851mm.Athreespeedgearbox,thelargestofitstorqueto691Nm,effectivedrillingthrust2,145kg.Designdrillpipesmallerdiameterof41.3mm,lengthof762mm,alsowithconeshapedmaleconnector,calledET/Atypedrillpipe.ET/AtypeandtheinitialET/Ntypedrillpipeisthedrainageoftwostandardgasdrillingequipment,includingintheUnitedKingdomisnowNo.613/1974oftheMinistryofCoalsamples.中国矿业大学2007届本科生毕业设计第4页HydrackdrillingrigisinstalledbythegroupcomposedofstandardpartsDrillarackwithskateboards,skateboardssupport.Bitinstalledintheslidingseat,bythehydraulicmotors,Biansuchilunmeandthrustaswellassetsofcomponentsupplyrotaryjoint.Ontherack,slideunderthehydrauliccylinder.Boredendoftherackorientedholderusedtosupportthedrillpipeandfixed.Powerequipmentwhichisequippedwithahydraulicoiltank,followingaslipski,makesiteasytotransport.Amotorandhydraulicpumpandotherauxiliaryequipment,suchasthereturntotheoilfilter,safetyvalve,andpumps,tankairwayandhumiditysafetyswitchesareinstalledinthefueltankabove.Controlpanelthesmallestofthefourdevices.Boredfunctionsincludethecontrolvalve,pressuregaugeandtheinstructionsoftorqueonthedrillingbitpressure.Rackassemblywhenthepreparationsfordrilling,racksupportsdrillingrig.Racktoadapttoavarietyofdifferentformsofdrillingterrainchanges,Hrack,Aframeandsinglebearingpillars.Thelattertwoarebaseddrillingriguserstotherequirementsofthedesign.Hydraulicoilthroughhydraulicflexiblehosefromthepowerplantstationtransmittedtothecontrolpanelandthenintotherig.Generallonghose4m,toadapttothepositioningdevices.KeywordPowerequipmentControlpanelRackassembly1绪论1.1引言煤炭是当前我国能源的主要组成部分之一,是国民经济保持高速增长的重要物质基础。但是目前我国的煤炭工业的发展远不能满足整个国民经济的发展需要。因此必须以更快的速度发展煤炭工业。然而,高速发展煤炭工业的出路在于煤炭工业的机械化。煤炭工业的机械化是指采掘、支护、运搬、提升的机械化。其中运搬包括运搬和辅助运搬。绞车就是辅助运搬的其中一种。我国绞车的发展大致分为三个阶段。20世纪50年代主要是仿制设计阶段60年代,自行设计阶段70年代以后,我国进入标准化、系列化设计阶段。

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