Rotary Drilling Rig is a project suitable for the construction based on pore-operation of construction machinery, is widely used in municipal construction, roads and bridges, high-rise buildings and other infrastructure construction projects, with different hole, adapted to dry-type (short screw), wet ( Rotary bucket) and rock (drill core) hole into the operation. Rotary Drilling Rig with installed capacity of power, and output torque, and axial pressure, flexibility, high efficiency and multi-function construction and so on.

With the rapid development of the global economy, continued to broaden the scope of the capital, people-centered and the idea of protecting the environment and when the relevant laws and regulations continued to strengthen, so that in particular the scene pile foundation pile foundation concrete has been widely used in space. Rotary Drilling Rig for its high efficiency, less pollution, more functional characteristics, to adapt to the needs of the above development, at home and abroad, the construction of cast-in-place concrete piles have been occupying the position of the main models.

At present, the main rotary drilling rig manufacturers as follows: 31, Xugong, Sunward Intelligent, Dongming machinery, Zoomlion, Jingwei Juli, Tianjin Bao Mindanao, Shijiazhuang Coal, Harbin Sihai, such as YUTONG. Rotary Drilling Rig with imports as compared to similar devices are still inadequate, in which the reliability of electronic control system the gap significantly.

Electro-hydraulic Rotary Drilling Rig is the integration of equipment, of which the structure of electrical control system more complicated, more types of electronic components, in the event of failure, will directly affect the operation of rotary drilling rig efficiency. The reliability of electronic control system is the basis of reliability engineering, reliability engineering is the most complex task.

1, electronic control system

Drilling Drilling electronic control system (in addition to reducing the proportion of foreign), including encoders, angle sensors, monitors, pressure relief valve, such as the ratio of the hydraulic system.

Figure 3 factory electronically controlled part of the overall structure of the hardware detection system

2, rotary drilling rig control flow

1. Hold down the right main landing winch handle to operate the lower left front of the button (At this point, the left operating handle to the main winch switch condition), at the same time pull the left after the operating handle, then increase the main winch.
   Positive press and hold the right to operate the handle of the button lower left (At this point, the left operating handle to the main winch switch condition), left foreleg operating handle at the same time, the decline in the main winch.
2. Des lifting winch handle positive press and hold the right to operate the upper left button (At this point, the left operating handle to switch to the auxiliary hoist condition), at the same time pull the left after the operating handle, the winch Des increased.
   Positive press and hold the right to operate the handle of the upper left button (At this point, the left operating handle to switch to the auxiliary hoist condition), left foreleg operating handle at the same time, the decline in secondary winch.
3. Hold down the left-turning cars around a positive operating handle at the top right of the button (At this point, the left switch to turn the operation condition), at the same time pushing the left operating handle left, then turn left on the train.
   Hold down the left front operating handle at the top right of the button (At this point, the left switch to turn the operation condition), at the same time pushing the left operating handle right, then turn right on the train.
4. Positive impetus to the first left onto the right operating handle, the head is transferred (ie, cutting into the formation).
   Right onto the right operating handle, the driving force for the first reversal (ie, type-kai unlock or sand drill pipe to close Doumen).
5. Pressurized fuel tank of the right forward telescopic operating handle, the piston rod out of pressurized tanks pressurized pipe.
   Pull the handle right after the operation, the pressurized fuel tank of the first piston rod driving force to bring back.
6. Change the fuel tank telescopic handle press and hold the right to operate the back button (At this point, the right to switch to the operating handle Luffing condition), while right operating handle forward, then the fuel tank of contraction amplitude, parallel to the mast forward.
   Hold down the right to operate the handle back button (At this point, the right to switch to the operating handle Luffing condition), at the same time right after the operation of pulling the handle, then the fuel tank Luffing elongation, parallel to the mast after the shift.
7. Li was transferred mast mast protection by holding down the button, push the tune before the mast at the same time the handle, so the mast forward movement.
   Hold down the button to transfer the protection of mast while mast tune after pulling the handle, so the mast back movement.
8. Mast mast about correcting the protection of the button press and hold the tune, tune mast at the same time pushing the left handle, left correction mast.
   Hold down the mast to protect tune button, push the right tune at the same time handle masts, mast right corrective.
9. Before walking track around the left foot pedal pressure, then left before crawler.
   After the pressure in his left foot pedal, then tracked back left.
10. The right to walk around the track before the right foot pedal pressure, then the right track before.
    After the right foot pedal pressure, then back the right track.
11. Hold down the left operating handle other positive lower left button, the horn sounded.
    Hold down the left operating handle back button, then the depth of zero.
    Hold down the left button to operate the lower right corner handle, then turn cleared.
    Hold down the button on the bottom right of the right to operate the handle, the engine idling.