一、混凝土钻孔取芯机概述：采用本田发动机驱动，特别适用于野外取芯试验，改善了野外工作没有电源的局限，采用高速切割技术，与薄壁金刚石钻头配套，混凝土钻孔取芯机广泛用于工程建筑、市政工程、设备安装工程和建筑质量检查工程等领域的钻孔与取芯。在公路、机场、港口、大坝等混凝土、沥青路面、石灰石基础上取芯进行抗压、抗折试验。
I. Overview of concrete drilling and coring machine: It is driven by Honda engine, which is especially suitable for field coring test. It improves the limitation of field work without power supply. It adopts high-speed cutting technology and is matched with thin-walled diamond bits. It is widely used for drilling and coring in the fields of engineering construction, municipal engineering, equipment installation engineering and building quality inspection engineering. Cores are tested on concrete, asphalt pavement, limestone foundations such as highways, airports, ports, dams, etc. for compression and bending tests.
二、混凝土钻孔取芯机主要特点：
采用双立柱结构、螺栓跟进方式，稳定性好，操作简单省力。配有行走轮，移动方便。采用高速切割技术与薄壁金刚石钻头配套，可钻切高强度钢筋混凝土，钻进效率高、孔位准确、孔壁光滑、成孔质量好、芯样完整光滑、震动小，对建筑无损害。
Second, the main features of concrete core drilling machine:
It adopts double-column structure and bolt follow-up method, which has good stability and simple and labor-saving operation. Equipped with walking wheels, easy to move. The high-speed cutting technology is used in combination with thin-wall diamond drill bits to drill high-strength reinforced concrete with high drilling efficiency, accurate hole locations, smooth hole walls, good hole formation quality, complete and smooth core samples, and low vibration, without damage to the building.
三、混凝土钻孔取芯机技术参数：
★A大钻孔直径：200毫米
★A大钻孔深度：700毫米
★输出转数：800—1200转/分
★功率：5.5马力 9.0马力 13马力（本田汽油机）
★尺寸：1080X780X1300/1400mm
★机重：120千克（5.5马力）190千克（9马力）200千克（13马力）
Third, the technical parameters of concrete core drilling machine:
★ A large drilling diameter: 200 mm
★ A large drilling depth: 700 mm
★ Output speed: 800—1200 rpm
★ Power: 5.5 hp 9.0 hp 13 hp (Honda gasoline engine)
★ Size: 1080X780X1300 / 1400mm
★ Machine weight: 120 kg (5.5 hp), 190 kg (9 hp), 200 kg (13 hp)
四、混凝土钻孔取芯机钻孔取芯机的结构：
★变速器
钻孔取芯机主要由变速器、进给装置、液压提升系统和行走装置、冷却系统和贮液设备、电气控制设备组成。变速器（见图!）是钻芯机设备中的主要结构，用于改变传动比，实现传递不同的转速和扭矩，适应钻机不同的工作环境和工作要求，保证发动机在A有利的工况范围内工作。选用功率为% 67，转速为$ &&& 8 9 5:;的汽油机为动力。汽油机经过变速器中的皮带轮 一对滑移齿轮2 和锥齿轮/ 减速并改变动力传递方向< 实现钻头旋转和变速。通过变速箱上的拨叉 实现两挡变速。
Fourth, the structure of concrete core drilling machine core drilling machine:
★ Transmission
The core drilling machine is mainly composed of a transmission, a feeding device, a hydraulic lifting system and a traveling device, a cooling system and a liquid storage device, and an electrical control device. The transmission (see picture!) Is the main structure in the core drilling machine equipment. It is used to change the transmission ratio, realize the transmission of different speeds and torques, and adapt to the different working conditions and requirements of the drilling rig. jobs. Use a gasoline engine with a power of% 67 and a speed of $ &&& 8 9 5 :; for power. The gasoline engine passes through the pulleys in the transmission a pair of slip gears 2, * and bevel gears / & & Reduces speed and changes the direction of power transmission. Two-speed transmission is achieved by the fork on the gearbox
★进给设置
操作者通过进给装置（见图!）中的手轮(,转动，经过锥齿轮)、0改变动力传递方向并经过螺旋副的升降作用，实现钻头的进给。设计时考虑了两种方案，A种方案为通过齿轮齿条换向和丝杠传动，实现对钻头向和丝杠传动，实现对钻头种方案为通过齿轮齿条换向和丝杠传动，实现对钻头的进给操作。这种方案成本较低，但装配较复杂。二种方案为通过锥齿轮换向和丝杠传动，实现对钻头的进给操作。这种方案结构简单，装配简单。根据公司的实际情况，采用二种方案实现了钻头的进给操作。
★ Feed settings
The operator changes the power transmission direction through the hａnd wheel (, rotation, through the bevel gear), 0 in the feeding device (see Figure!), And the lifting of the screw pair to achieve the feed of the drill. Two schemes were considered in the design. A scheme is to realize the direction of the drill bit and the screw by gear and rack reversal and screw drive. Feed operation to the drill. This solution is less expensive, but the assembly is more complicated. The two solutions are to realize the feed operation of the drill bit through the bevel gear reversing and screw transmission. This solution has a simple structure and simple assembly. According to the actual situation of the company, two kinds of schemes were adopted to realize the feed operation of the drill.
由于钻芯机工作环境复杂，对称设计了另一个手 轮()和锥齿轮(-传动，手轮( ()对称安装，便于操作者在复杂的工作环境下操作钻机。液压提升系统和行走装置
液压提升系统和行走装置钻孔取芯机在进行钻孔取芯时，振动较大，工作时，必须固定设备；若在工作时产生振动，产生微小位移， 有可能使所取的芯发生倾斜，若严重位移， 可能使钻筒与钻孔壁之间摩擦阻力加大，增大钻芯机的负荷。因此，工作时必须固定钻芯机，确保钻芯机的正常工作。另外，由于钻芯机的工作环境复杂，设计时还必须考虑钻芯机的搬运。应用液压系统，并在机架上安装一对汽车轮子，来实现上述两个要求。当钻芯机工作时，利用液压系统把整台设备（包括汽车轮子）提离地面，然后由支脚支撑，确保机器稳定工作。当机器工作结束，利用液压系统放下设备，汽车轮子接触地面，支脚收起。由于机器自身不具有行走能力，在设备上设置拖挂装置，由机动车牵引行走。冷却系统和贮液设备 钻芯机工作时，钻头在高速回转过程中与混凝土研磨产生高温，必须有冷却液冷却。同时研磨产生的混凝土粉末必须及时被冲洗掉，否则粉末堵在钻头切削面上，影响钻进，加快钻头磨损。设计具有一定压力的冷却液对钻头进行冷却和排除混凝土料屑，以保证钻头的正常工作和使用寿命。机架上安装冷却水箱，通过水管与钻套连接，用于冷却钻头，保证机器工作时不会因缺少冷却液而停止工作，并能在供水不便的场合下也能够正常工作。电气控制设备 钻孔取芯机设置了手动和自动操作功能，便于在不同工况下选择使用。为保障设备使用安全，设置过载保护功能
五，混凝土钻孔取芯机安装步骤：
钻头对准孔位后，把三个行走轮搬起，让底座落入地面。打小孔且混凝土强度不高时，则依靠钻机的自身重量 可以竟钻机固定，若打的孔径较大，钻机自身重量不能稳住钻机时，可在底盘上放置重物（如砂袋、铁块、混凝土块等）固定或打两个膨胀螺栓加上压杆（如槽钢等）来固定钻机 ，钻机固定要牢靠，不得摇晃，否则钻空作业无法正常进行。
1/开孔
以上工作做好后，即可开孔作业，装上钻头，启动汽油机（详情见汽油机用户手册）把进水管放入水桶内，水桶要提高到出水泵位置，然后手捏气囊把水吸入水泵，水泵上水后把水桶放到地面即可。油门调至A大，开始轻摇给进手柄，使钻头缓慢接触地面。开孔要决：先给水后钻进，给进速度要慢，钻压要小。严禁无水作业，以免烧毁钻头和水封。
2/正常钻入
当开孔钻进2—3毫米深后，即可转入正常钻进，此时给进压力适当加大，正常钻进的要决是：给进压力要适中，要保持均匀，碰到粗钢筋给进压力要减小。做到一听二看，听机器的声音是否正常，看孔口是否返（冒）水3/终孔
到达所需深度后，即可停钻。停钻的要求是：先关机器后关水，若是深孔时，还不能立即提钻和停水，而要用水冲孔一段时间，目的在于将孔内的岩粉冲洗干净，以防岩粉沉淀导致埋钻，造成取芯困难。
Due to the complicated working environment of the core drilling machine, another hａnd wheel () and bevel gear (-transmission, hａnd wheel ( ()) are symmetrically installed to facilitate the operator to operate the drilling machine in a complex working environment. The hydraulic lifting system and Walking device
Hydraulic lifting system and walking device drilling and coring machine When drilling and coring, the vibration is large, and the equipment must be fixed during work; if vibration occurs during work and slight displacement occurs, it may make the core removed Occurrence of tilt, if it is severely displaced, the frictional resistance between the drill pipe and the drilling wall may increase, which will increase the load on the core drilling machine. Therefore, the core drilling machine must be fixed during work to ensure the normal operation of the core drilling machine. In addition, due to the complicated working environment of the core drilling machine, the handling of the core drilling machine must also be considered during the design. A hydraulic system is applied and a pair of automotive wheels are mounted on the frame to fulfill the above two requirements. When the core drilling machine is working, the entire equipment (including car wheels) is lifted off the ground by the hydraulic system, and then supported by the feet to ensure the stable operation of the machine. When the machine is finished, the equipment is lowered by the hydraulic system, the wheels of the car touch the ground, and the feet are retracted. Since the machine itself does not have the ability to walk, a tow device is provided on the equipment to be driven by a motor vehicle for walking. Cooling system and liquid storage equipment When the core drilling machine is working, the drill bit and the concrete grind during the high-speed rotation process to generate high temperature, which must be cooled by the coolant. At the same time, the concrete powder produced by grinding must be washed away in time, otherwise the powder will be blocked on the cutting surface of the bit, which will affect the drilling and accelerate the wear of the bit. The coolant with a certain pressure is designed to cool the drill bit and remove concrete debris to ensure the normal operation and service life of the drill bit. A cooling water tank is installed on the rack, and is connected to the drill sleeve through a water pipe for cooling the drill bit, ensuring that the machine does not stop working due to lack of cooling liquid, and can work normally in the case of inconvenient water supply. Electrical control equipment The drilling and coring machine is equipped with manual and automatic operation functions, which is convenient for selection and use under different working conditions. To ensure the safety of equipment use, set overload protection function
Fifth, the installation steps of concrete core drilling machine:
After the drill is aligned with the hole, lift the three walking wheels to let the base fall to the ground. When drilling small holes and the strength of the concrete is not high, you can rely on the rig's own weight to fix the rig. If the hole diameter is large and the weight of the rig cannot hold the rig, you can place heavy objects (such as sａnd bags) , Iron blocks, concrete blocks, etc.) Fix or hit two expansion bolts and press rods (such as channel steel) to fix the drilling rig The drilling rig must be firmly fixed and must not be shaken, otherwise the drilling operation cannot be performed normally.
1 / opening
After the above work is done, you can open the hole, install the drill, start the gasoline engine (see the gasoline engine user manual for details), put the water inlet pipe into the bucket, and raise the bucket to the outlet pump position. Put the bucket on the ground after the pump is filled with water. Set the throttle to A, and start to shake the feed handle slightly to make the drill bit slowly touch the ground. Hole opening depends on: first feed water and then drill, feed speed is slow, and drilling pressure is small. It is strictly forbidden to operate without water, so as not to burn the drill bit and water seal.
2 / Normal drilling
When the hole is drilled to a depth of 2-3 mm, it can be switched to normal drilling. At this time, the feed pressure is appropriately increased. The key to normal drilling is: the feed pressure should be moderate, uniform, and rough. Reinforcing bar feed pressure should be reduced. Do a second look and listen to whether the sound of the machine is normal and see if the orifice returns (sucks) water 3 / final hole
Once you reach the required depth, you can stop drilling. The requirements for stopping drilling are: shut down the machine first and then turn off the water. If it is a deep hole, you cannot immediately lift the drill and stop the water. Instead, use water to punch the hole for a period of time. Sedimentation leads to buried drills, making core removal difficult.
六、混凝土钻孔取芯机注意事项：
1、当出现卡钻时，不允许采用强行起动机器的办法来排除卡钻，而应采用人工方法（如用加长搬手转动钻头）排除后，方可重新启动机器。
2、当岩芯卡在钻头内时，应立即停止钻进，及时清除。清除时，只允许用橡胶锤或软木棍轻轻敲击钻头钢体，反复敲击即可将岩芯清除出来。严禁用铁锤敲击钻头或岩芯，严禁用铁棍从钻头后部插入敲击岩芯，以免损坏薄壁钻头。
3、使用前应仔细阅读（汽油机用户手册）
4、严禁无水作业。
Six, matters needing attention in concrete drilling and coring machine:
1. When stuck stuck, the method of forcibly starting the machine is not allowed to be removed. Instead, manual methods (such as rotating the drill bit with an extended handle) can be used to restart the machine.
2. When the core is stuck in the drill, stop drilling immediately and remove it in time. When clearing, only allow the hammer steel body to be tapped lightly with a rubber hammer or cork stick, and the core can be removed by repeated tapping. It is strictly forbidden to strike the drill bit or core with a hammer, and it is strictly forbidden to insert the core from the back of the drill with an iron rod to avoid damaging the thin-walled drill.
3. Read carefully before use (gasoline user manual)
4. Waterless operation is strictly prohibited.
