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1, Brief Introduction:
KDQ series pneumatic DTH drilling rig is widely applied to road, national defence, water conservancy, big stone project and slope protection projects, etc forsmall blasthole drilling.It is specially useful for rugged and accidented areas where other DTH drilling rig can not work normally.With compact structure, easy operating, fast drilling, high efficiency, easy to disassemble and very convenience for carrying.
2. Features:
(1) Applicable type of down-the-hole impact with high rock drilling efficiency.
(2) With compressed air as the power source, the power is single, safe and reliable.
(3)Simple structure, easy to use, short auxiliary time and light weight
- Working principle
The rig is a machine that uses compressed air as the power to convert compressed air.
power into mechanical force to break the rock. The rig is equipped with an hammer and a bit. During the working process, the piston of the hammer continuouslyimpacts the tail. The alloy teeth on the bit continually impact the rock, and therotating torque generated by the reducer causes the drilling tool to rotate and propelthe axial force generated by the cylinder. Drill holes into the drill.
- 4. Structural characteristics
- This down-the-hole drilling rig is composed of a powerhead assembly(which indlude a speed reducer and a pneumatic motor) ,a propulsion cylinder assembly, a control console with an oil lubricator and pressure gauge, a hammer ,a bit.
5. The operating procedures
(1) Transportation preparation work
(1) After the drilling rig is transported to the construction site, inspect the components
and whether the parts are defective or not, and then assemble and refuel.
(2) First, the two front legs of the carriage are located at the working position, and the
support rod is adjusted to determine the angle of the carriage.
(3) Before connecting the motor and the hose, the hose should be carefully cleaned.
The pipeline valve can be opened for a few seconds, and the foreign matter in thehose is blown off with compressed air.
(4) Check whether the bolts are tightly connected, whether the pipelines are firmlyconnected, and there is no leakage or oil leakage.
(5) Install an appropriate amount of 30# oil in the oil mister.
(6) The handles of the pneumatic control valve are all placed in the "stop" position.After the preparation is completed, the no-load test can be carried out.
| Model |
KQD70 |
KQD100 |
KQD120 |
| Drilling diameter |
φ60-80mm |
φ83-100mm |
φ85~130mm |
·
Suitable for rock (platts hardness) |
≥20 |
≥20 |
≥20 |
| Drilling depth |
≥15m |
≥30 |
30-40m |
| Rotary speed(r/min) |
110r/min |
90r/min |
90r/min |
| Air pressure |
0.5-0.7Mpa |
0.5-0.7Mpa |
0.5~1.0Mpa |
| Air Consumption |
≥3.5m3/min |
6M3/min |
10m3/min |
| Cylinder diameter |
90mm |
90mm |
90mm |
| stroke |
1070mm |
1070mm |
1200mm |
| propelling force |
3600N |
6000N |
9600N |
| Power |
3kW |
3kW |
3kW |
| Voltage |
380V |
380V |
380V |
| Rated speed |
1410r/min |
1410r/min |
1410r/min |
| Drill pipe diameter |
φ42mm |
φ42mm |
φ42mm |
| Drill pipe length |
1025mm |
1025mm |
1025mm |
| Dimension |
1740×260×420mm |
1800*650*400mm |
1800*700*450mm |
| Weight |
220kg |
250kg |
300kg |
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