What is Small Portable DTH Drilling Rig
The D Miningwell Small Borehole Drilling Rigs have two types of pneumatic and electric，meet the needs of all kinds of construction situation. drilling rig machine is widely used in mines, transportations, defense,water conservancy,rock engineer,especiaaly rugged terrain,which has low center of gravity,easy to fold and to move.
What is Small Portable DTH Drilling Rig ？
The portable down-the-hole drilling rig is a new type of energy-saving and efficient rock drilling equipment. It is widely used in medium and small mines and medium-deep blasthole rock drilling operations in road construction, national defense, water conservancy and stonework projects. It is also indispensable for open-pit mining. The rock drilling equipment is especially suitable for rugged terrain where other drilling rigs cannot operate normally; the machine has a compact structure, easy operation, fast drilling speed, high efficiency, good disassembly, and extremely convenient transportation.
Basic parameters of portable down-the-hole drilling rig:
Drilling diameter (mm) 80-100
Drilling depth (m) ≥20
Rotation speed (rpm) 0-84
Working pressure (MPa) 0.5~0.7
Drill pipe specifications (mm) 60x1000
Air consumption (m^3/min) ≥7
Lifting force (N) 9600
Portable down-the-hole drilling rig features:
·Using motor as the rotating force, it is economical, efficient and energy-saving.
·It adopts straight tooth transmission reducer, which has large rotation torque and high rock drilling efficiency.
·Novel overload protection makes the drilling rig operate stably and reliably.
The rock drilling principle of the down-the-hole drilling rig is the same as that of the heavy-duty rock drill. It impacts the rock (ore) intermittently and rotates continuously. The difference is that the impact mechanism of the down-the-hole drilling rig – the down-the-hole impactor is installed on the front end of the drill pipe, dives into the bottom of the hole, and the piston Directly impact the drill bit, and continue to advance as the drill hole extends. The down-the-hole drilling rig is named after the impactor dives into the bottom of the hole. The drilling rig uses the piston in the impact catcher to complete the impact action of the impact drill bit, and the eye rotation mechanism realizes the rotation action.
