8寸正反循環鉆機，圖片，介紹，配置

 采用變頻器加無極變速電機可以實現鉆速在0-50轉／分之間任意調節

 一、正、反循環鉆機的用途及技術性能

   1.ZFJ-2000型正反循環鉆機，是綜合了多個功能為一體的回旋鉆機，它體現了一機多用途的新技術。是理想的成孔機械，行走方式有液壓步履式，車載式，履帶式，拖車式多種機型，使該機的使用性更強，操作更靈活，方便可靠。該機在地層的多變性上，可隨時根據地層快速改變鉆孔工法（正反循環）。鉆速在0-45轉/分，很好的解決了鉆速要求。因此該機更適合流沙，淤泥，粘土，石卵石，砂礫層，風化巖等多種復雜地層的施工。被廣泛應用在建筑，橋梁，水利，水井，電力，電訊，工程降水等工程施工中。
One、The use and technical performance of a positive and reverse circulation drilling rig
1.ZFJ-2000 type reverse circulation drilling machine，Is integrated with multiple functions as one of the rotary drilling rig，It embodies the new technology of a machine.Is an ideal pore forming machine，Walking method has hydraulic walking type，Vehicle mounted, crawler type, Trailer type,Make the machine more use,The operation is more flexible, convenient and reliable.This machine is in the variable of formation.May at any time according to the formation change fast drilling method 。In addition, The machine has four speeds。Therefore, this machine is more suitable for sand, silt, clay, stone pebbles, gravel, and other weathered rock complex stratum construction.Is widely used in construction, bridges, water conservancy, water wells, electricity,telecommunications, engineering and other construction projects.
鉆機參數

 
二、鉆機的構造
     ZFJ-2000型鉆機是正反循環鉆機，由YD多級變速電機，減速機，正、反循環泥漿泵、閥門、液壓油泵、油缸、主卷揚、副卷揚、配電箱、鉆架、鉆桿、鉆頭組成。
1.電動機.主動力電機為YD多級變速電機，其余為Y系列普通電機。
2.減速機為四軸三級正齒輪減速，可用齒輪變換變速，分四種轉速。
Two, the structure of drilling rig
 
ZFJ-2000 type drilling machine is a positive and negative circulation drilling machine，By YD multi speed motor, reducer, positive, reverse circulation mud pumps, valves, hydraulic pump, cylinder, main hoist, vice winch, distribution box, drill frame, drill pipe, drill bit.
     1 、Drive motor is YD series of multi speed variable speed motor
     2、 reducer for the four shaft three gear reduction, can be used to transform the gear speed, divided into four kinds of speed.
三、工作原理
 1.鉆機的油壓系統均由油泵將壓力油泵通過管道經多路閥控制，根據需要在送達各執行機構，使它完成各項動作。
 2.減速機將動力經變速傳至輸出軸，帶動鉆桿和鉆頭進行回旋運動，完成正轉（順時針方向）進行切削工作，（反轉做卸鉆桿時用）正常鉆孔中禁止反轉。（反轉會引起掉鉆桿，鉆頭事故）
3.正、反循環的操作：
 3.1在施工中如遇到地層或洗井原因需要更換鉆孔工法時，其操作步驟是，以正循環為例，操作液壓手柄，關閉大泥漿泵上的壓閥，啟動3PNL小泥漿泵，水經管道經大泵、鉆桿、進入鉆尖底部，使孔中的切削泥渣被水流托起順井管流到沉淀池。經沉淀水又進入3PNL泥漿泵，形成循環。
反循環工法，主機旋轉，關閉大泵閥門，啟動3PNL漿泵，給大漿泵灌泵，使空氣排空，啟動大漿泵同時開啟閥門，關閉3PNL漿泵，大泵出水正常就可正常工作。（如果鉆桿中的空氣未排空，或有地方漏氣，將影響大泵出水）。正反循環可隨時互換。同時反循環可做正循環鉆孔完成清孔（清除沉淀）工作。
3.2鉆機的下籠及灌灰
樁孔完成后，提出鉆桿，鉆頭，鉆機同時向后移動合適的位置，視機架上副額頭吊鉤對準樁孔中心為準，同時卷揚就可下籠和灌注商品灰。
Three, working principle
1 the hydraulic system of the drilling machine is controlled by the multi way valve of the pressure pump through the pipeline, and it is required to be served on the executive body, so that it can complete the action.
2.The reducer will power transmission is transmitted to the output shaft, drive drill and cyclotron motion, complete forward (clockwise) carry on the work of cutting and (reversal unloading the drill pipe) in normal drilling ban reversal (reversal will cause the drop of drill pipe, drill bit accident)
3.positive and reverse circulation operation:
3.1 in construction such as encountered strata or clear hole and need replacing the positive and reverse circulation, take the positive cycle, for example, hydraulic operation handle large mud pump pressure valve closed, start small 3pnl mud pump, mud through a pipeline, after pump, drill pipe, into the bottom of the bit, mud by water hold up along the pipeline flow into the mud pool. After precipitation of water into the 3PNL mud pump, the formation of circulation.
四、鉆機的安全操作規程
1.本機操作人員，必須經過培訓，應熟練掌握操作機構和熟悉安全操作規程方能上機操作。嚴禁酒后上機操作。
2.開機前，應對鉆機及配套設備進行檢查，特別應注意檢查各卷揚機的剎車是否靈活可靠，鋼絲繩是否有斷絲斷股現象，待確認完好后，方可開機工作。
3.現場工作人員，必須穿絕緣鞋和配戴安全帽。
4.拆裝鉆桿時應集中精力，及時清除鉆桿螺紋上面的異物，并加少許機油，可減少鉆桿的損壞和漏氣的發生。
5.操作人員應堅持交接制度，交班時應向接班者交代清楚鉆機的工作情況和隱患，如有異常應處理后方可工作。
Four, drilling rig safety operating procedures
1 this machine operator must be trained, should be familiar with the operating mechanism and familiar with the safe operating procedures to operate on the machine.
2、 before starting the machine, should drilling rig and ancillary equipment were examined in particular should pay attention to check the windlass brake is flexible and reliable, whether the rope is broken wire breaking phenomenon, to be confirmed that the intact, start working.
3、field staff must wear insulated shoes, wear safety helmet.
4、When removing the drill pipe energy should be concentrated, pay attention to remove the foreign matter on the drill pipe thread, drill pipe joints a little oil, can reduce the occurrence of drill pipe damage and leakage.

五、鉆機的使用與保養
1.經常檢查主機的卷揚油位，發現缺油應及時添加，定期更換主機機油，向卷揚機，泵內注油。
2.接場地電源時要注意相差，大泵不可反轉。
3.工作中，應隨時監視電器儀表，傾聽各各運轉部件響聲，如突發異常聲音，應停機檢查，不可讓設備帶病作業，緊固件不可松動。
4.液壓手柄操作時，應先慢后快（視場地情況定）如操作過快會損壞設備和發生危險
5.鉆進速度根據地層變化而變化，視反循環泵的出水狀況（出水流量大，可快進，水量小要慢進或停進）。同時要控制泥漿比重，在額定電流范圍內，慢慢