高炉开铁口机大臂旋转设备液压系统设计

辽宁科技大学本科毕业设计（论文）第I页高炉开铁口机大臂旋转设备液压系统设计摘要开铁口机是完成打开高炉铁口的关键设备，随着在现代冶炼技术的发展进步,老式简易开铁口机的不足逐渐暴露出来，已不能满足现代化高炉的要求，开铁口机的改制势在必行。本课题研究的是全液压开铁口机的液压系统设计，该控制系统利用液压控制灵活、迅速的优势，一改以往人工操纵换向为液压系统识别自动控制换向。开铁口机从回转开始工作到工作结束回到停放位置，均采用液压全自动控制，不需人工干预，提高了开孔能力和开孔速度，适应了现代化大型高炉的要求。该系统主要由冲击、转钎、推进及回转四部分的液压控制系统组成，本课题主要设计了这四部分中推进与回转部分的液压控制系统，及对这两部分液压系统的组合和系统性能验算，同时论述了各部分的计算设计过程和必要的强度校核。关键词开铁口机；液压系统设计；液压全自动控制辽宁科技大学本科毕业设计（论文）第II页ABSTRACTTapholedrillisakeyequipmenttoopenthetapholeblastfurnace,Withmodernsmeltingtechnologyinthedevelopmentandprogress,Easyopenoldirondeficienciesmachinegraduallyexposed,Hasbeenunabletosatisfytherequirementsofmodernblastfurnace,Tapholedrillrestructuringinevitable.Thistopicresearchisentirehydraulicpressureopenstheirongatemachinehydraulicsystemdesign,Thecontrolsystemuseshydrauliccontrolflexibility,rapidadvantages,assoonaschangedformerlythemanualcontrolcommutationforthehydraulicsystemrecognitionautomaticcontrolcommutation.TheTapholedrillerfromthebeginningoftheendoftheworktoreturntotheworkspaceforparking,adoptedhydraulicautomaticcontrol,doesnotneedthemanualintervention,enhancedhasopenedtheholeabilityandopenstheholespeed,adaptedthemodernizedlarge-scaleblastfurnacerequest.Thissystemmainlyoftheimpact,theextensionrockdrill,advancesandrotatesfourpartofhydrauliccontrolsystemcomposition,Thedesignofthetopicsissuesofthispartofthefourhydraulicsystems,Andthetotalhydraulicsystem,thecompositionandpropertiesofcheckingsystem,Italsoexplainsthepartsofthedesignprocessandcalculatingthenecessarystrengthcheck.Keywordstapholetrill；hydraulichystemdesign；hydraulicsystemrecognitionautomaticcontrolcommutation辽宁科技大学本科毕业设计（论文）第III页目录摘要.......................................................IABSTRACT......................................................II目录.....................................................III1绪论.........................................................11.1开铁口机国内发展现状..............................................11.1.1开铁口机国内引入状况........................................11.1.2开铁口机国内开发状况........................................11.1.3开铁口机国外的应用与发展状况................................21.2国内外开铁口机存在的问题..........................................21.3开铁口机的发展前景................................................31.3.1国内各结构开铁口机应用情况..................................31.3.2国际开铁口机的发展趋势......................................31.4全液压开铁口机....................................................31.4.1全液压开口机简介............................................31.4.2全液压开口机的发展前景......................................32.本课题的总体设计方案........................................52.1设计要求..........................................................52.2设计方案..........................................................52.3推进部分液压系统的设计............................................53.液压马达各参数的确定.........................................73.1确定参数..........................................................73.1.1工作载荷力矩的计算..........................................73.1.2小车在轨道上静摩擦力的计算..................................83.1.3开铁口时所需驱动力矩的计算..................................83.2液压马达的选择....................................................83.2.1工进时液压马达转速的计算....................................83.2.2快退时液压马达转速的计算....................................93.2.3液压马达的选择..............................................93.3液压马达工作压力的计算............................................93.4液压马达实际流量的计算...........................................103.5液压系统图的拟定.................................................104.回转部分液压系统的设计......................................124.1回转部分各参数计算...............................................12辽宁科技大学本科毕业设计（论文）第IV页4.1.1参数的计算.................................................124.1.2各阶段的负载计算...........................................134.2执行元件工作压力的确定...........................................184.3液压缸尺寸的计算.................................................184.3.1液压缸工作面积的计算.......................................184.3.2液压缸尺寸的计算...........................................194.4液压缸强度校核...................................................204.4.1液压缸联接方式及材料选择...................................204.4.2缸筒壁厚和外径计算.........................................224.4.3活塞杆强度验算.............................................234.4.4液压缸固定螺栓的校核计算...................................234.5液压缸工作压力、流量和功率的计算.................................244.5.1液压缸工作压力的计算.......................................244.5.2液压缸输入流量的计算.......................................254.5.3液压缸输入功率的计算.......................................254.6液压系统图的拟定.................................................255总液压系统图的确定.........................................285.1总液压系统的分析.................................................285.1.1液压回路的选择.............................................285.1.2总液压系统原理图的确定.....................................285.2总液压控制系统组成及控制原理.....................................315.3总液压系统控制下的自动作业过程...................................325.3.1总液压系统钻孔前的控制过程.................................325.3.2总液压系统在铁口钻穿后的控制过程...........................326液压元件的选择及辅助装置的确定.............................346.1液压泵的选择...................