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1、摘要潜孔钻机的冲击器装于钻杆的前端,潜入孔底,随钻孔的延而不断推进,即因冲击器潜入孔底而得名。潜孔钻机不像凿岩机接杆钻进那样,能量损失随钎杆的加长而增加,因而能打深孔、大孔。应用于井下钻孔时,同凿岩机相比,由于冲击器深入孔内作业,工作面噪音大大降低。应用于露天钻孔时,同钢绳冲击式钻机相比,钻孔速度提高2-3倍,机械化程度较高,辅助作业时间少,提高了钻机作业率。潜孔钻机的液压系统按其功能可分为四大部分,即推进回转液压控制回路,接卸钻杆液压控制回路,钻机的定位液压回路和行走调平液压控制回路。本次设计着重在于推进回转和接卸钻杆液压系统,兼顾定位和行走调平回路。查阅相关资料,读懂并改进钻机液压系统,此
2、系统设计环境要求占用空间越小越好,流量不能过大,因此可以采用开式油路。虽是野外作业但可接入电源,采用异步电动机驱动。根据系统参数,计算后查阅样本选择合适元件,设计油箱、集成阀块和泵站,通过计算验算系统性能是否满足要求。关键词 潜孔钻机液压系统多路阀集成阀块泵站35AbstractTheimpactorofsubmersibledrillingriginstalledinthetheensofthedrill,sneakingintothebottomofthehole.Thatistheoriginofitsname.Submersibledrillingrigisdifferenttodri
3、llingmachine,whichusestheunloadingpipe,soenergylossincreaseswiththelengthenedofdrill.Thusthesubmersibledrillingrigcandigdeepandlargehole.Usedinwelldrilling,noisereducesgreatlycomparedtodrillingmachine,becausseitsimpactordeepholeoperations.Usedinopen-airdrilling,itsdiggingspeedimprovestwoorthreetimes
4、comparedtothesameropeimpactdrill.thedegreeofMechanizeincreases,Auxiliaryoperationtimedecreases,improvetheefficiency.Accordingtotheirfunction,Submersibledrillingrighydraulicsystemcanbedividedintofourparts,wecantellthempromotingandrotaryhydrauliccontrolcircuit,theloadingandunloadingdrilhydrauliccontro
5、lcircuit,submersibledrillingpositionhydrauliccircuitandwalkinghydrauliccircuit.Mydesignemphasisonpromotingandrotaryhydrauliccontrolcircuitanditsloadingandunloadingdrilhydrauliccontrolcircuit,takingintoaccountthelocationandwalkinghydrauliccircuit.Referringtorelativeinformation,readingandimprovingthes
6、ubmersibledrillingrighydraulicsystem.Thissystemenvironmentrequiresfootprintassmallaspossible,theflowisnottoolarge,soIchoosetousetheopencircuit.AlthoughitworksoutsidebutwecangetAC,soIuseasynchronousmotor.Dependingonthesystemparameters,selecttheappropriatecomponentsaftercalculationandinspectionofsampl
7、e,designfueltank,integratedvalveblocksandpumpingstations,atlastImustcheckthesystemperformancecanfittherequirementsorwhetherthroughcalculation.Keywords submersibledrillingrighydraulicsystemintegratedva