AT series patio drilling rig is mainly used for underground mines and other various projects of ventilation shafts, filling wells, pipeline wells, etc., can also be used as a large section of the underground mining patio and shaft. This series of patio drilling rigs are all driven by full liquid, and various drilling parameters can be adjusted steplessly, with good impact resistance and stable work; compact structure, simple and convenient installation and operation; high production efficiency, good well quality, safe operation, and workers The characteristics of low labor intensity and small drilling deflection rate.

AT series patio drilling rig is mainly used for underground mines and other various projects of ventilation shafts, filling wells, pipeline wells, etc., can also be used as a large section of the underground mining patio and shaft. This series of patio drilling rigs are all driven by full liquid, and various drilling parameters can be adjusted steplessly, with good impact resistance and stable work; compact structure, simple and convenient installation and operation; high production efficiency, good well quality, safe operation, and workers The characteristics of low labor intensity and small drilling deflection rate.

Main structural features and technical superiority

1. The drilling rig adopts the drilling methods of downward drilling of pilot hole, upward reaming, full section cutting and direct well formation. The patio can be directly drilled through, and the reaming cutter head is taken out from the upper level;

2. The whole set of equipment adopts full hydraulic drive control series, and each drilling parameter (shaft pressure, revolution and torque, etc.) can be adjusted steplessly according to the rock condition and drilling depth, with good impact resistance and balanced work;

3. Adopt double cylinder propulsion system, large propulsion force and good balance;

The slewing system adopts low-speed high-torque hydraulic motor, ordinary spur gear transmission and machine head with axial floating and universal swing angle mechanism;

5. The main engine, pump station and drill pipe car all adopt rail wheel movement mode, which is convenient to transport and move;

6. The hydraulic system adopts the dual-circuit system of the main pump and the auxiliary pump, so that the rotary system and the propulsion system do not interfere with each other, and is equipped with a decompression drilling system for deep well drilling, which can realize the special function of drilling with the drill pipe;

7. Equipped with an unloading rod manipulator, the drill pipe can be directly extracted from the ground and sent to the drilling rig axis, reducing labor intensity;

8. Equipped with anti-card rod control mechanism, can effectively prevent the occurrence of holding drill failure.