2.3 Hydraulic system
Rotation adopts the open hydraulic system. The movements of push or pull adopt load sensitivity
technology. World first-class brand's components can provide good performance and good reliability.
1
)
Rotation system
|
Pump
|
5
×
Rexroth A11L 260
|
|
Rate of flow
|
2470L/min
|
|
Pressure
|
350bar
|
|
Motor
|
6
×
Rexroth A6VM200
|
2
)
Push and pull system
|
Pump
|
6
×
Rexroth A11L260
|
|
Rate of flow
|
2964L/min
|
|
Pressure
|
350bar
|
|
Motor
|
16
×
Rexroth A6V M200
|
|
Main valve
|
AMCA PR-3211-B05
|
3
)
Clamp system
|
Pump
|
Rexroth A11L260
|
|
Rate of flow
|
320L/min
|
|
Pressure
|
350bar
|
|
Clamp
clyinder
|
8
×
220
|
|
Clamp valve
|
AMCA PR-3211-B05
|
4
)
Push and pull system
|
Pump
|
Rexroth A11L190
|
|
Rate of flow
|
399L/min
|
|
Pressure
|
350bar
|
|
Motor
|
2
×
Rexroth A2FE125
|
|
Manual reset relay
|
AMCA APV22
|
|
5)Assistant system
|
|
Pump
|
1
×
Rexroth A11L190
|
|
Rate of flow
|
60L/min
|
|
Pressure
|
350bar
|
|
|
6)
Cooling system
|
|
Cooling power
|
4
×
150kW
|
|
Rate of flow
|
4
×
458L/min
|
|
2.4 Electronic system
The HDD adopts intelligent and CAN bus control technology. The meter shows clearly and easy to see.
The HDD shows the actual torque and push or pull force immediacy in the large and high showing size monitor automatic.
PLC control technology can detect the engine speed, the temperature of cooling water, the pressure of lubrication, the temperature of hydraulic oil, the pressure or stoppage of filter element, the position of carriage etc. It can also alarm to the operator in wrong condition.
The HDD travel safety at stepless speed regulation and controlled by wire cable.
|
The multi-speed control of rotation and push or pull make HDD be suitable to the complex
|
|
geology.
|
|
|
Voltage of electronic
|
DC24V
|
|
Battery
|
VARTA 6-QW-120B
|
|
Controller
|
Rexroth
|
|
Monitor
|
MURPHY
|
|
Handle of rotation
|
P+G
|
|
Sensor of speed
|
Rexroth
|
|
Switch of sensor
|
Honeywel
|
|
Switch of route
|
Honeywel
|
|
Sensor of temperature
|
Danfoss
|
|
Sensor of pressure
|
Danfoss
|
2.5 The entry angel is changed by adopting the link weldment and cylinder. It has the advantage of simple and safety.
The drill frame is made by high tension steel. The pipe support is used in adding or take off the pipe. It is easy to operation and clip. It is convenient for the reason of the drill frame slide by the cylinder.
|
The distance of the drill frame slid
|
3000 mm
|
|
The length of
the drill frame
|
18600 mm
|
|
Entry angle adjust by drill frame
|
8
~
16°
|
2.6 Carriage
Push or pull is executed by rack and pinion. The HDD also use the floating axis to protect the
pipe's thread. The rapid speed is carried out by the variable motor. The speed of carriage and the force of push or pull can be executed steplessly.