One Main features:<More pictures>

1. The power head is a through type top drive, driven by two high-speed hydraulic motors in combination. Large output torque and wide speed range. Can meet the requirements of different drilling methods.

2. The lifting system adopts a hydraulic cylinder chain doubling mechanism to increase the stroke length. Change to construction work.

3. The main tower guide rail adopts a V-shaped structure, and the connection between the power head and the main tower has high rigidity, ensuring smooth high-speed rotation.

4. Equipped with grippers and disconnectors, with high automation and easy operation.

5. The winch is driven by hydraulic pressure, ensuring smooth lifting and reliable braking.

6. The main transmission is driven by a variable displacement pump, which has a high power utilization rate.

7. The drilling rig adopts hydraulic track drive, which has strong maneuverability and is easy to move.

8. The main tower of the drilling rig has a water depth of 360 degrees, a vertical angle of 90-20 degrees, and an adjustable height of 2500mm for all-round drilling.

9. The hydraulic transmission of the drilling rig adopts pilot proportional valve control and electrical control with high degree of automation.

II Applicable construction methods:

When drilling in thick fractured layers and accumulations, the rear power head is connected to an internal drilling tool, and the end is connected to a down the hole hammer to achieve impact rotary drilling. The front power head drives the casing to rotate for wall protection. In complex formations (fractured layers and accumulations), rapid drilling and grouting can be achieved.

When constructing in loose cover layers, quicksand layers, and silt layers, the internal drilling tool is a regular rotary drilling tool or a long spiral drilling tool, and the front power head drives the casing to rotate for wall protection.

When drilling in relatively complete formations, a separate power head can be used for conventional rotary drilling and impact rotary drilling.

3、 Technical specifications:

Basic parameters

3.1 Drilling diameter

φ110-219 mm

Drill pipe diameter

60，89 mm

Drilling angle

comprehensive

Overall dimensions of drilling rig

4800X2000X2500 mm

Drilling rig weight

7500 Kg

3.2 Power Head

Rear power head: (drill pipe)

rotational speed

torque

Single motor

Low speed 0-120 r/Min

1600 Nm

High speed 0-310 r/min

700 Nm

Dual motor

Low speed 0-60 r/Min

3200 Nm

High speed 0-155 r/min

1400 Nm

Front power head: (casing)

rotational speed

torque

Single motor

Low speed 0-60 r/Min

2500 Nm

Dual motor

Low speed 0-30 r/Min

5000 Nm

Power head stroke: 2200 Nm

3.3 Feeding device: Single cylinder chain doubling

Power head lifting capability

50 KN

Power head provides input capability

35 KN

Power head lifting speed

16 M/min

Power head gives in speed

24 M/min

3.4 Gripper

Clamping range

50-200 mm

Clamping force

6000 Nm

3.5 Windmill

Increase speed

0.2—0.7 m/s

Enhance ability

15 KN

Diameter of steel wire rope

12 mm

Rope capacity

50 M

3.6 Walking device hydraulic steel track

Theoretical speed: 2.1 Km/h

Rated traction force 10KNm

Climbing slope:

Upslope:

Less than 25 degrees

Downhill:

20 degrees

Flip angle:

35 degrees

Track width:

400mm

Track center distance:

2260mm

Grounding pressure:

≤35KPa

3.7 Equipped with a 46KW DEUTZ air-cooled diesel engine