Type 20 engineering drilling rig manufactured by Longsong

Model:
Type
Concrete drilling coring machine Application:
Type engineering drilling rig uses high-speed cutting technology and is matched with thin-walled diamond drill bits and is widely used in engineering construction, municipal engineering, equipment installation engineering and construction Drilling and coring in areas such as quality inspection engineering.
Take cores from concrete, asphalt pavement, limestone foundations such as highways, airports, ports, dams, etc. to conduct compression and flexural tests.
Install large mechanical equipment to drill anchor bolt holes.
Install bridge handrails and drill holes for traffic safety guardrails.
Features of the concrete drilling and coring machine:
It adopts double column structure and bolt follow-up method, which has good stability and is simple and labor-saving to operate. Equipped with running wheels for easy movement.
Using high-speed cutting technology and thin-walled diamond drill bits, it can drill high-strength reinforced concrete with high drilling efficiency, accurate hole position, smooth hole wall, good hole forming quality, complete and smooth core sample, small vibration and no damage to the building. .
Main technical parameters of concrete drilling and coring machine:
Maximum drilling diameter:
Maximum drilling depth: (reachable when using extension standard or extended core tube)
Output speed :-rev/min
Power: .horsepower weight:
Power: .horsepower weight:
Supported power: Honda engine
Drill size: &;&;, &;&; ,&;&;,&;&;,&;&;
(Other specifications of drill bits can also be customized)
rInstructions for use
One installation
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After unpacking and taking out the drilling rig, the screws connecting the square tube and the base should be firmly assembled into the correct position of the drilling rig. Before construction, the base must be fixed on the workpiece firmly, reliably and steadily.
2. Fix the drilling rig
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Fixing firmly and smoothly is an important condition to ensure that the drilling rig can drill normally
There is usually a method
Push rod fixing method:
Generally, a hollow round pipe is used. First, pre-select the length of the round pipe according to the height of the indoor drilling location, then lock one end to hold against the building object and the other end to hold up the adjusting bolt at the upper end of the square column of the drilling rig. Then tighten the screw in the opposite direction to make the drilling rig work. It is generally not necessary to drill expansion bolt holes if they are firmly tightened.
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Expansion bolt fixing method
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Use an electric hammer to make a hole in the wall or the ground and put it in. Use an iron rod to expand the expansion bolt, install the screw rod and put it in. The bracket fastening nut completes the fixation.
Three Installation of the Drill Bit
Carefully install the diamond thin-walled drill bit. The drill tail thread must match the tool output shaft thread. Before installing the drill bit, apply some grease on the drill tail thread to facilitate disassembly. After the drill bit is installed, the machine should be idle and tested.
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Note: When disassembling and assembling the drill bit, make sure the tool switch is turned off. <>
Connect the water source<>
The cooling water must be turned on before operating this tool. Please use clean cooling water!
There are usually several ways to add water to a drilling rig
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The most common method is to use the pressure of tap water to add water to the machine
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One end of the water-adding hose is connected to a tap water faucet Disadvantages of connecting one end to the water faucet of the machine: you often have to carry around 10 to 20 meters of hose, which is quite bulky. Some tap water faucets are far away and require additional hoses. For example, a thousand dozen will affect the service life of the drill bit
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When there is no water source at the construction site, hang a bucket of water above the drilling rig to use the horizontal pipe drop pressure
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Disadvantages: The operation is more troublesome. You need to hang up the bucket first, and it may require two people to work at the same time. When I hit a high place in the room, there was no place to hang the bucket.
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Use a micro water pump to add water to the drill
Four openings and drilling
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Do not start the drilling rig in the no-load state. Allowed to start with load. After starting, open the water supply faucet and start drilling only when water flows out of the drill bit. At the beginning, the drill should be drilled slowly, and the force should be light and even. When the drill bit cuts into the left and right depths of the object, the thrust can be increased to carry out normal drilling operations.
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When it is found that the gasoline engine speed drops significantly during the drilling process, it indicates that it is overloaded and the feed pressure should be appropriately reduced immediately to prevent the drill from getting stuck. If you find smoke or odor, lift the drill immediately and then drill slowly to prevent overloading and burning.
Five drilling materials
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When the drill drills holes in reinforced concrete materials, the drill bit will cut the steel. The machine will vibrate and should be appropriately reduced without thrust. But it should not be too small and should be moderate. Not only will drilling be slow, but it will also increase drill bit wear. When the concrete material grade is not high, such as sand and pebbles falling off the steel bar head, it will cause the drill drill to be instantaneously overloaded. At this time, the drill should be shut down immediately, the drill bit should be withdrawn, and the drill gap should be cleaned before drilling. When drilling into the oil, wool and other inclusions on the surface of a thick wood block, the thrust should be reduced and the drill should be drilled slowly and evenly.
Six Take the Drill Core
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When the drill bit is about to drill through objects such as floors and walls, pay attention to slow down the drilling speed to prevent drilling too hard, causing the drill core burrs to be too large and stuck in the thin Cannot be removed from the wall drill bit. Once the drill core is stuck in the drill bit and cannot be taken out, the machine should be shut down immediately, the drill bit should be removed, and the inner walls of the drill bit should be rinsed with water. After the debris is washed away, tap the steel body lightly with a wooden stick, carefully remove the drill core, and then reinstall the drill bit to continue the operation.
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Note: Be careful not to damage the drill bit when taking it out.
Seven Drill Rig Vibrations
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Drill rig vibrations sometimes occur when drilling. This is usually caused by the enlarged gap between the lifting body and the square tube rack. At this time, the machine should be stopped and the rail lining on the lifting body should be adjusted to pass through. Tighten the relevant screws to adjust the appropriate clearance. At the same time, please also pay attention to the firm and reliable connection between the base and the square tube.
Note: All Longsong machines are
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