8寸正反循环钻机，图片，介绍，配置

 采用变频器加无极变速电机可以实现钻速在0-50转／分之间任意调节

 一、正、反循环钻机的用途及技术性能

   1.ZFJ-2000型正反循环钻机，是综合了多个功能为一体的回旋钻机，它体现了一机多用途的新技术。是理想的成孔机械，行走方式有液压步履式，车载式，履带式，拖车式多种机型，使该机的使用性更强，操作更灵活，方便可靠。该机在地层的多变性上，可随时根据地层快速改变钻孔工法（正反循环）。钻速在0-45转/分，很好的解决了钻速要求。因此该机更适合流沙，淤泥，粘土，石卵石，砂砾层，风化岩等多种复杂地层的施工。被广泛应用在建筑，桥梁，水利，水井，电力，电讯，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.
钻机参数

 
二、钻机的构造
     ZFJ-2000型钻机是正反循环钻机，由YD多级变速电机，减速机，正、反循环泥浆泵、阀门、液压油泵、油缸、主卷扬、副卷扬、配电箱、钻架、钻杆、钻头组成。
1.电动机.主动力电机为YD多级变速电机，其余为Y系列普通电机。
2.减速机为四轴三级正齿轮减速，可用齿轮变换变速，分四种转速。
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.钻机的油压系统均由油泵将压力油泵通过管道经多路阀控制，根据需要在送达各执行机构，使它完成各项动作。
 2.减速机将动力经变速传至输出轴，带动钻杆和钻头进行回旋运动，完成正转（顺时针方向）进行切削工作，（反转做卸钻杆时用）正常钻孔中禁止反转。（反转会引起掉钻杆，钻头事故）
3.正、反循环的操作：
 3.1在施工中如遇到地层或洗井原因需要更换钻孔工法时，其操作步骤是，以正循环为例，操作液压手柄，关闭大泥浆泵上的压阀，启动3PNL小泥浆泵，水经管道经大泵、钻杆、进入钻尖底部，使孔中的切削泥渣被水流托起顺井管流到沉淀池。经沉淀水又进入3PNL泥浆泵，形成循环。
反循环工法，主机旋转，关闭大泵阀门，启动3PNL浆泵，给大浆泵灌泵，使空气排空，启动大浆泵同时开启阀门，关闭3PNL浆泵，大泵出水正常就可正常工作。（如果钻杆中的空气未排空，或有地方漏气，将影响大泵出水）。正反循环可随时互换。同时反循环可做正循环钻孔完成清孔（清除沉淀）工作。
3.2钻机的下笼及灌灰
桩孔完成后，提出钻杆，钻头，钻机同时向后移动合适的位置，视机架上副额头吊钩对准桩孔中心为准，同时卷扬就可下笼和灌注商品灰。
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、钻机的安全操作规程
1.本机操作人员，必须经过培训，应熟练掌握操作机构和熟悉安全操作规程方能上机操作。严禁酒后上机操作。
2.开机前，应对钻机及配套设备进行检查，特别应注意检查各卷扬机的刹车是否灵活可靠，钢丝绳是否有断丝断股现象，待确认完好后，方可开机工作。
3.现场工作人员，必须穿绝缘鞋和配戴安全帽。
4.拆装钻杆时应集中精力，及时清除钻杆螺纹上面的异物，并加少许机油，可减少钻杆的损坏和漏气的发生。
5.操作人员应坚持交接制度，交班时应向接班者交代清楚钻机的工作情况和隐患，如有异常应处理后方可工作。
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、钻机的使用与保养
1.经常检查主机的卷扬油位，发现缺油应及时添加，定期更换主机机油，向卷扬机，泵内注油。
2.接场地电源时要注意相差，大泵不可反转。
3.工作中，应随时监视电器仪表，倾听各各运转部件响声，如突发异常声音，应停机检查，不可让设备带病作业，紧固件不可松动。
4.液压手柄操作时，应先慢后快（视场地情况定）如操作过快会损坏设备和发生危险
5.钻进速度根据地层变化而变化，视反循环泵的出水状况（出水流量大，可快进，水量小要慢进或停进）。同时要控制泥浆比重，在额定电流范围内，慢慢