I. Matters needing attention
1. When drilling with concrete drilling and coring machine, the feed speed should be uniform, about 3 ~ 5 cm/min. If the drill bit is stuck, the feed speed can be reduced appropriately. If necessary, raise the drill bit for a period of time, and then drill slowly to avoid hard drilling, so as not to damage the drill bit and the machine.
2. During the whole drilling process, enough water must be kept to cool.
3, in the process of drilling, shall not be overloaded, when the motor temperature exceeds 70℃, (feel hot), should reduce the loading force, and replace the new drill.
4, at the end of the drilling, only when the drill bit from the workpiece, to stop.
Second, the maintenance and inspection
1, check the joints of various parts of the concrete drilling and coring machine regularly, and adjust them in time if they are loose.
2. When the drill bit is loaded, lithium-based grease should be added to the two threads.
3. After drilling, scrub all parts of the drilling rig and add lubricating oil to the column and frame.
4. When the concrete drilling and coring machine is used, replace the lithium-based grease in the gear box once every six months.
Third, the operating procedures
( 1)? Install a hollow drill with proper diameter.
(2)? Move the drilling hole to the required working position, fix the drilling hole with expansion screws, and adjust the anchor screws to stabilize the drilling rig. Or fix the drilling and coring machine with a heavy enough bottom plate to prevent the machine from moving when drilling and coring.
(3)? Connect the water source and check whether there is water flowing out.
(4)? Start the generator and turn on the circuit switch.
(5)? Turn the handle and gently touch the drill bit to be cut. When the drill bit is cut to about l0mm, press the handle to speed up the precession.
(6)? After the cutting is completed, the drill bit can be rotated and lifted. When it is about 5mm away from the specimen surface, the power supply can be turned off, the drill bit leaves the specimen surface and the water source can be turned off.
(7)? Remove the fixing bolt, drag it away from the coring machine, and take out the sample with a fixture.
(8)? When in use, the drill bit should be prevented from hitting hard objects to avoid damaging the drill bit.
Do you know what matters needing attention in the use of concrete drilling and coring machine now? When using this large instrument, we must control the temperature. The motor temperature of this machine and equipment shall not exceed 70℃. If it exceeds 70℃, it is easy to burn yourself. The high temperature of concrete drilling and coring machine will reduce its bearing strength and easily lead to bit damage. When using this kind of mechanical equipment, we must standardize the operation, otherwise it will be very dangerous.
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