【摘要】：坑道鉆探可以利用舊礦區(qū)已有的井、巷對深部資源進行勘探,能夠滿足深部資源勘探的需求。坑道鉆機是坑道鉆探的核心設備,我國目前生產的坑道鉆機的鉆深、轉速、扭矩等參數(shù)已經不能滿足深孔金剛石繩索取芯鉆進工藝參數(shù)的要求。在參閱坑道鉆機技術參數(shù)及工作原理相關文獻的基礎上,對繩索取芯坑道鉆機的發(fā)展現(xiàn)狀進行了總結,并結合具體的取芯工藝要求,設計出一種全液壓坑道巖心鉆機,按照鉆機的一般設計流程和方法對鉆機的機械機構及液壓回路進行了設計。主要開展了以下研究工作:(1)通過文獻及市場調研,總結了坑道鉆機的發(fā)展現(xiàn)狀及市場需求,確定了鉆機的基本參數(shù),并根據基本參數(shù)計算了執(zhí)行機構的主要技術參數(shù)。(2)確定了鉆機的布局方式,整機包括鉆進單元、動力單元以及操作臺。采用滑橇式底盤裝載。(3)對各執(zhí)行機構的負載特性進行分析,根據其性能要求確定了各個回路的調速調壓方式:回轉回路、升降回路、取芯絞車回路以及泥漿泵驅動回路采用負載敏感回路;鉆進回路采用恒壓鉆進回路。確定了雙泵雙系統(tǒng)的動力分配方式,進而擬定了整機液壓原理圖。(4)計算了液壓元件的技術參數(shù),選定了液壓馬達、液壓泵、電動機的類型、規(guī)格。設計了雙活塞桿兩級伸縮油缸,并采用活塞桿固定方式安裝以增加動力頭行程。
[Abstract]:Tunnel drilling can make use of the existing wells and roadways in old mining areas to explore deep resources, which can meet the needs of deep resources exploration. Tunnel drilling rig is the core equipment of tunnel drilling. The drilling depth, rotation speed, torque and other parameters of tunnel drilling rig produced at present in China can no longer meet the requirements of drilling technology parameters of deep-hole diamond rope core-drilling. On the basis of consulting the technical parameters and working principle of the tunnel drilling rig, this paper summarizes the development status of the rope coring drill, and designs a kind of fully hydraulic tunnel core drill combined with the concrete requirements of the coring technology. The mechanical mechanism and hydraulic circuit of drilling rig are designed according to the general design flow and method of drilling rig. The main research work is as follows: (1) through literature and market research, the development status and market demand of tunnel drilling rig are summarized, and the basic parameters of drilling rig are determined. According to the basic parameters, the main technical parameters of the actuator are calculated. (2) the layout of the drilling rig is determined, which includes drilling unit, power unit and operating table. Using skid chassis loading. (3) the load characteristics of each actuator are analyzed. According to its performance requirements, the speed regulation and voltage regulation methods of each loop are determined: the rotary circuit, the lifting circuit, The load sensitive loop is used in the cored winch circuit and the mud pump driving circuit. The drilling circuit adopts constant pressure drilling circuit. The power distribution mode of double pump and double system is determined, and the hydraulic principle diagram of the whole machine is worked out. (4) the technical parameters of hydraulic components are calculated, and the types and specifications of hydraulic motor, hydraulic pump and motor are selected. The double piston rod two-stage expansion cylinder is designed, and the piston rod is fixed to increase the stroke of the power head.
【學位授予單位】：中國地質大學(北京)
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TD421

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