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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
