[Introduction]
ZDY25000LDK high power automatic crawler directional drilling rig is a kind of self-walking full hydraulic power head crawler tunnel drilling rig suitable for large diameter near horizontal deep hole drilling. The drilling rig adopts electro-hydraulic integrated control and remote control, with large torque output. The drilling rig has advanced technical performance, large output capacity, strong process adaptability, and convenient movement and relocation. It can be drilled by full remote-control operation and can also be operated by a hydraulic control console. The mechanical loading and unloading of the drill rod can be realized by the mechanical hand or the rolling rod system behind the gyrator. It is mainly used in the construction of large diameter gas drainage holes and other engineering holes in the underground coal mine with rotary steering and geosteering drilling technology and instruments.
[Technical specification]
| Type |
ZDY25000LDK |
| Drilling rig |
Borehole depth/m |
2000 |
| Drilling diameter/mm |
200 |
| Brake torque/N·m |
4000 |
| Rated torque/N·m |
22000/4000 |
| Max torque/N·m |
25000 |
| Rated speed/(r/min) |
40/180 |
| Feed/pull force/kN |
300/350 |
| Motor power/kW |
160 |
| Dip of the main axis/° |
0~20 |
| Directional drill rod/(m/pcs) |
2 |
| Rotary drill rod/(m/pcs) |
2 |
| Rod diameter/mm |
Φ114 |
| Drill rod handling method |
Manipulator automatic rod |
| Rig control mode |
Remote control/Manual control |
| Remote control distance/m |
≥30 |
| Traveling speed/(km/h) |
2.2 |
| Gradeability/° |
15 |
| Weight/kg |
15000 |
| Dimension(L×W×H)/mm |
5300×1600×2150 |
| Mud pump |
Rated flow/(L/min) |
800 |
| Rated pressure/MPa |
12 |
| Inlet diameter/mm |
100 |
| Outlet diameter/mm |
50 |
| Traveling speed/(km/h) |
2.2 |
| Gradeability/° |
15 |
| Rated current/A |
400 |
| Rated voltage/V |
1140/660 |
| Weight/kg |
11000 |
| Dimension(L×W×H)/mm |
5100×1600×1950 |
[Main technical features]
1. The drilling rig adopts a crawler-type layout structure and needs to be used with a crawler-type mud pump truck. The rig has independent walking ability, convenient relocation, flexible site layout, and strong climbing ability (climbing less than or equal to 15 degrees).
2. The hydraulic system of the drilling rig adopts a single operation mode, and the operation mode of the drilling rig is remote control operation by a wireless remote controller. Except for some auxiliary actions, other actions can be controlled by a wireless remote controller.
3. The drilling rig is equipped with a manipulator and drill rod box. The combination of the top double gripper and active drill rod is used to unscrew the drill rod. At the same time, the automatic loading and unloading control of the drill rod can be realized by the manipulator through the control system program of the drilling rig.
4. The main shaft of the gripper adopts a 135mm large hole structure, which meets the requirement of large capacity rotary torque output. The rated output torque is 22000Nm, and the maximum output torque is 25000Nm. It can carry out large angle drilling construction and has strong technological adaptability.
5. The guide rail of the drilling machine is made of wear-resistant material, which has the characteristics of a long service cycle and convenient replacement.
6. The drilling rig has an active cylinder floating function when unscrewing the drill rod, which can effectively protect the drill rod and prevent thread damage compared to the passive cylinder floating mode.
7. The drilling rig adopts an electro-hydraulic control system with load sensing and constant power control technology. The key hydraulic oil pump and hydraulic valve set adopt imported components, which have the characteristics of significant energy saving, high reliability, and good operability.
8. The pump truck adopts a closed hydraulic control system with load sensing and constant power control technology. The key hydraulic oil pump and hydraulic valve set adopt imported components, which have the characteristics of high transmission efficiency, simple and reliable control and remarkable energy-saving effect.
9. All kinds of hydraulic components of the drilling rig and the pump truck adopt the Rexroth brand, including hydraulic pump, hydraulic motor, multi-way valve, pilot control handle, manual directional valve and other hydraulic auxiliary parts, so that the reliability, handling and transmission efficiency of the drilling rig has been greatly improved.
[Technical advantages]
ZDY25000LDK high-power automatic crawler directional drilling machine is a high-tech product that combines the current advanced electrohydraulic control technology, signal detection and data sensing technology. It has the advantages of a high degree of automation, strong fault-tolerant mechanism, simple operation, low labor intensity and high safety factor.
1. The drilling rig has equipped with a wireless remote control which can remote control various movements of the drilling rig. The remote control has a wireless communication mode with the host, which can display the relevant drilling parameters such as rotary speed, feed pressure and other main parameters of the drilling rig in real-time. Operators can stay away from the orifice when operating the rig, thus effectively ensuring their personal safety.
2. The drilling rig has the function of an automatic up and down drill rod. The automatic up and down drill rod system composed of a manipulator and drill rod box is driven by the control software to complete the automatic up and down the function of drill rod with different drilling inclination angles, which can replace the manual automatic adding and disassembly of drill rod.
3. The drilling rig comes with data automatic detection and display function. During the drilling process, it can automatically detect and display drilling routine parameters, such as drilling weight, rotational speed, feed speed and other dynamic parameters.
4. The drilling rig has the function of preventing stuck drilling in the drilling process. The drilling machine adopts multi-sensing technology and realizes real-time monitoring and diagnosis of abnormal changes in drilling parameters by extracting the sensor parameters of displacement, pressure and speed in the drilling process. At the same time, the diagnosis result will be displayed on the screen of the control system to provide the necessary reference for the drilling personnel on site. The control system evaluates the risk of sticking in the drilling process by detecting and judging the status of a pressure sensor, speed sensor and displacement sensor and combining it with an anti-sticking control algorithm to prevent sticking in the drilling process.
5. The drilling rig is equipped with a gas over-limit detection device. When the gas exceeds the limit, the device will send out an acousto-optic alarm to remind the driller on-site to stop drilling.
[Patent certificates]
[Field test]
Xi'an Research Institute conducted field tests of intelligent drilling rig and rotary guided drilling technology in Tangjiahui coal mine using ZDY25000LDK high-powered intelligent directional drilling technology equipment, together with guided drilling technology.The test completed a total of 2 capacity holes over 800m, with a maximum hole depth of 810m and a total feed of 1632m.
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