Changchun down-the-hole drilling rig quotation down-the-hole drilling rig quotation price list

& Changchun down-the-hole drilling rig quotation down-the-hole drilling rig quotation price list
3. Working principle, structure and function
Working principle Jining crawler down-the-hole drilling rig crawler down-the-hole drilling rig price list
This drilling rig is a A composite power model, powered by motor and compressed air. The power to rotate the drilling tools of the drilling rig comes from the electric motor, and the impact force of the impactor comes from the compressed air. When the motor works, it converts electrical energy into rotational torque and transmits it to the reducer, causing the drill rod connected to the output shaft of the reducer to rotate. The alloy teeth at the front end of the drill rod continuously impact and break the rock. The broken rock is ground into powder by the continuously rotating drill bit. , blown to the ground by the pressurized air discharged from the exhaust hole of the drill bit. The axial force generated by the propelling cylinder is sent to the drilling tool for drilling.
, structure and function
The Q-type down-the-hole drilling rig is composed of a supporting mechanism, a reducer, an electric motor, a propulsion mechanism, a drilling system, an oil mist device, a pneumatic control valve, and an electronic control switch.
①. Support mechanism
This mechanism includes a slide frame and a support part. The slide frame is welded by channel steel. It is not only the slideway of the skateboard, but also the beam of the drilling rig. The slide frame is equipped with a slide plate, a cylinder and a clamping device, and the reducer slides back and forth on the slide frame with the slide plate. The supporting part is used to support the slide frame. Adjusting the length of the rear legs can change the inclination angle of the slide frame, thereby changing the angle of the rock drilling hole.
②. Reducer and electric motor
The reducer and electric motor form the structure that realizes the rotation of the drilling tool.
The reducer is a four-stage reduction, the transmission ratio is:, lubricated with high-speed butter, the motor is. .
③. Propulsion mechanism
The propulsion mechanism consists of cylinders, connecting rods, brackets, etc. The short frame machine also has cross beams and tie rods. The propulsion cylinder adopts a piston cylinder with a cylinder diameter of 100 mm and one propulsion stroke. Compressed air enters the cylinder through the pipeline and acts on the piston. The piston rod drives the slide plate through the bracket to push the drilling tool forward for rock drilling.
④. Drilling system
The drilling system includes: drill pipe joints, transition joints, rod unloaders, drill pipes, impactors, drill bits, etc.
The impactor consists of joints, valve cabinets, valves, hammer bodies, cylinder bodies and bits. The air-water mixture directly enters the inside of the impactor through the pneumatic control valve, geomantic pipe, and drill pipe, forcing the hammer body to reciprocate to impact the drill bit. The drill bit is the most vulnerable part, and it is available in a variety of specifications and sizes.
⑤. Oil mist device
The oil mist device is a pneumatic accessory that uses compressed air as power to spray lubricating oil into a mist, and then sends it to each oil point with the compressed air for lubrication. By adjusting the oil dripping screw, the oil drips approximately every minute, and the quality of the oil used is mechanical oil.
⑥. Pneumatic control valve, electric control switch
There are two operating handles on the pneumatic control valve. By changing the position of the handle to control the impact and stop of the impactor, control the reciprocating motion of the propulsion cylinder, etc., it can control the drilling rig work conveniently and flexibly. The electronic control switch is a reverse switch, which can flexibly control the forward and reverse operation and stop of the motor.
4. Operating procedures
Drilling rig installation and pre-drilling preparation
① After the drilling rig is transported to the construction site, check all parts and components for defects and confirm that there is no damage before assembling and refueling.
②. First place the two front legs of the carriage in the working position, and adjust the support rod to determine the angle of the carriage.
③ When connecting the motor cable, cut off the power supply. In principle, the motor cable should be connected before the main power supply is turned on. After the motor power cable is connected, a test run should be made to see if the rotation direction of the motor is consistent with the setting on the controller. The direction is consistent, otherwise the machine should be stopped immediately and reversed.
④. Check that each bolt connection is tight and reliable, and whether each pipeline is firmly connected. Air leakage, oil leakage, etc. are not allowed.
⑤. Fill the oil mist device with an appropriate amount of mechanical oil.
⑥. Place all handles of the pneumatic control valve in the stop position.
⑦. After the preparation work is completed, no-load test can be carried out.
, Drilling operation method
①, Opening the hole
Raise the reducer to the upper limit position, tighten the drill pipe, turn on the motor, wait until the no-load is normal, and then slowly turn on the propulsion cylinder , place the drill bit on the working surface, close the propulsion cylinder, and then open the impactor to drill slowly. When the drill bit drills into the left and right sides, impact with the full air valve. During the drilling process, depending on the speed of the footage, slowly open or close the propulsion cylinder so that the drilling tool always maintains a certain propulsion force. At the same time, pay attention to whether the lubricator is supplying oil and adjust the amount of oil supply.
②. Rod connection
After drilling the first drill pipe, stop the motor, turn off the impactor to stop feeding, put the reducer at the lower limit position, and use a fork to fix the drill pipe in the holder Inside the reducer, reverse the reducer to disengage the drill pipe from the joint on the reducer. Then raise the reducer to the upper limit position and install the second drill rod. Only after the connection is firm can the drilling operation be carried out.
③. Unloading the rod
When the drill pipe is drilled until the rod unloader is in contact with the clamping drill, stop rotating, use a professional round rod to insert into the hole on the outside of the rod unloader, and rotate the rod unloader so that Align the second flat groove at the end of the drill pipe with the rectangular groove of the drill pipe, insert the fork, reverse the motor to disengage the joint on the reducer from the drill pipe, and then adjust it to the first flat groove at the end of the drill pipe. Align the flat groove with the rectangular groove of the rod unloader, insert another fork, then take out the fork in the drill, and let the rod unloader and the other fork drive the drill pipe back. (You can use a round rod to rotate slowly, and do not reverse the rotation.) When the second flat groove at the end of the next drill pipe is aligned with the rectangular groove of the drill, insert a fork and reverse the motor to make the upper and lower drill pipes After the connecting thread is disengaged, take the upper drill rod, slowly lower the reducer, and align the rectangular groove of the rod unloader with the first flat groove at the end of the next drill rod, and then repeat the above actions, in sequence. Remove all drill pipes.
, Operation Precautions
①. The operator must be trained and familiar with the operation methods before he can operate independently.
②. Before turning on the compressed air (i.e. air supply), the control valve must be placed in the stop position.
③. The drilling rig must be firmly supported before starting work to prevent the drilling rig from tipping over.
④. During the feeding process, it is strictly forbidden to open the propulsion cylinder suddenly and quickly to avoid jacking up the drilling rig and causing accidents.
⑤. Always check the safety protection of the motor and circuit to avoid electric leakage and injury to people.
⑥. Always check the connections of pipes, nuts, joints, etc. to ensure reliability.
⑦. Reverse rotation is not allowed when drilling to prevent the drill pipe from tripping.
⑧. When the drilling rig is working, pay attention to the sound of the impactor and whether the machine is running normally. If any abnormality is found, stop the machine immediately for inspection.
⑨ When adding drill pipe, special attention should be paid to cleaning the hole to prevent sand from mixing into the interior of the impactor and damaging the body.
5. Maintenance and maintenance
Lubrication
① Before the drilling rig is operated, the oil mist must be filled with mechanical oil. In winter, lower viscosity mechanical oil can be used.
②. Add lubricant (mixed with butter and engine oil) to the reduction box once a week.
③. The drilling rig guide surface, piston rod, exposed parts, drill pipe threads, etc. should be lubricated at any time.
When abnormal noise or overheating is found during the drilling rig operation, it must be stopped immediately for inspection and treatment before continuing the operation.
For new drilling rigs or drilling rigs that have been shut down for a long time, sufficient oil mist lubrication must be carried out before starting work, and oil-free work is not allowed.
Drilling rigs need to be inspected once to drill holes, maintain the motor, clean the reduction gearbox, cylinder, etc., and replace worn and damaged parts. Zaozhuang pneumatic down-the-hole drilling rig pneumatic down-the-hole drilling rig quotation
6. Troubleshooting of common faults
Drill pipe fracture
① Drill pipe fracture is mainly due to the gap between the drill pipe and the hole wall The friction makes the drill pipe wall thickness thinner and the strength is too weakened.
② When encountering complex rock formations, the machine suddenly gets stuck during normal operation.
③ In order to avoid the occurrence of the above faults, please pay attention to inspection when adding drill pipes. If you find excessively worn drill pipes or drill pipes with cracks, you should stop using them. The drill pipes that have been broken in the hole can be replaced by a female drill pipe. For cone fishing, the drill pipe size should comply with the drawing requirements.
, The impactor does not impact or the impact is weak
, The check valve is stuck
, The drill head extends out and is stuck with the front joint, and cannot be reset.
, poor lubrication, piston and cylinder seized.
, The valve stroke is too large or too small.
. The valve plate has poor contact with the valve cover and valve seat gas ring.
, the movement of the valve plate is blocked.
, incorrectly installed or missing parts.
, The outer tube is installed upside down.
The cylinder is severely worn.
The valve piece is seriously too small.
The exhaust hole is blocked by rock powder.
, too much water accumulates in the hole, and the exhaust resistance is large.
, The air supply pressure is insufficient.
If you encounter the above problems, please follow the following methods to eliminate them
Remove the check valve and check.
, remove the check valve, add a small amount of diesel or gasoline to flush it, and then replace it with thinner lubricating oil.
, remove the bit for inspection.
Disassemble and inspect, replace parts if necessary, and improve lubrication conditions.
, replace or grind the valve disc to make the stroke .+.
. Check the plane of the valve plate and the plane of the valve cover, valve seat and gas ring for bumps and scratches, and then repair or replace them with new ones.
, Remove debris due to the influence of debris.
, Reinstall according to the assembly drawing.
, turn around the outer tube and reinstall it.
, Replace the cylinder.
, Remove rock powder from the drill bit hole.
, Improve the impactor and reduce exhaust resistance.
, ensure the air supply pressure.
, stuck drill
Reasons for stuck drill: 1. Complex formation. ②. The drill bit breaks off the wing. ③. The new drill bit has a larger diameter than the original one. ④. When rock drilling, the machine is displaced or the drilling tool is deflected in the hole. Stones may fall off the wall and mouth of the hole or encounter large fissures or caves during rock drilling. ⑤. When encountering a broken zone with yellow mud and gravel, the rock powder cannot be discharged. ⑥. Operation was negligent. When drilling was stopped for a long time, the rock powder was not blown away and the drilling tool was not lifted up, causing the impactor to be buried by the rock powder.
Treatment method: To remove the broken wing of the drill bit, you can use a section of seamless pipe with a diameter similar to the hole diameter, fill it with yellow mud and asphalt, connect it to the drill pipe and send it to the bottom of the hole. Dip out the broken wing at the bottom of the hole and salvage it. Blow off the rock powder at the bottom of the hole before drilling.
When encountering the last five stuck drill situations, the more serious ones are that the drill tool cannot be lifted or put down, the motor cannot rotate, and the impact does not sound. At this time, only external torque or auxiliary tools can be used to help lift. Rotate the drilling tool, and then lift the drilling tool while supplying air until the fault is eliminated. When drilling rock again, apply a little pressure first, and then gradually increase it to normal working pressure.
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Drill bit fragments, dropped corners and dropped alloy pieces
When the drill pipe jumps high, stones may fall and wear out Pass through the exchange point where the rock formation changes or drop the alloy piece. Judging from the appearance, if the alloy pieces are dropped, there will be almost no footage, and the drill pipe will beat more rhythmically.
When lifting the drill bit to remove the alloy piece, you can use a powerful blowing method to blow it out. When the alloy piece is too big to blow, you can also use the method of handling the broken wing of the drill bit to pick it up. When there is a fault or broken zone in the hole, squeeze the alloy out. There is no need to remove the hole walls that enter these places, replace the drill bit and continue drilling.
. Precautions for use of motors and electricity consumption
①. Motor bearings should be well lubricated. When the bearing is found to be overheated, it should be maintained immediately, and the motor should be protected from moisture.
②. Pay attention to check whether the voltage used is consistent with the voltage used by the motor. When the motor is found to be burned out, the cause of the burned motor must be found and eliminated (some users have experienced problems with the voltage drop due to the line being too thin or too far and the voltage drop being too large. Too low may cause the motor to burn out multiple times)
*Note to users: Any motor burnout caused by improper operation will not be compensated or repaired. Shangluo fully pneumatic down-the-hole drilling rig price of fully pneumatic down-the-hole drilling rig