The URB 2A2 drilling rig is one of the most versatile in its class. The machine is designed to create explosive and water intake wells, exploration of various fields. In addition, it is used in the field of oil refining, geophysics, mining, engineering geology. Consider its characteristics and features.
How is the car arranged?
The URB 2A2 drilling rig as standard is based on a reinforced carrier frame. It is mounted on the basis of the modernized ZIL-131 car. The truck has a high cross-country ability, which allows for drilling and exploration in almost any environment.
A moving hydraulic rotating mechanism is provided, with which you can perform the following manipulations:
- Raise and lower the drilling tool.
- Perform length extension without breaking away from the face.
- Improve the quality of drilling operations.
The hydraulic drive greatly facilitates the whole process. The element is controlled using the remote control from the driller's place. This interaction ensures sensitive and prompt drilling. The kinematic design aggregates with the truck motor using:
- Drill type pumps (NB-50, MN-250/100, NSh-10-EL).
- Rotating mechanism, compressor, hydraulic motor.
- Transfer and transmission boxes, power take-off unit of the installation itself.
Description of the drilling rig URB 2A2
The equipment in question can also be installed on a tracked base or a sled type base. These options are optional. It is made to order, since the URB 2A2 operates from the power unit of its own wheelbase, the machine is not able to work autonomously without providing additional power.
The main advantage of the technology in question is the design, which is completely made according to domestic technology using exclusively Russian parts. This factor allows you to reduce the cost of operation without loss of quality. In addition, the special equipment has high maintainability with the ability to order the required spare parts for the fastest possible delivery. Since all consumables are manufactured at specialized factories in Russia, there is no need to wait a few months when ordering parts, as is the case with foreign suppliers. The URB 2A2 drilling rig can be operated in the most difficult conditions. The car showed excellent performance in Yamal and in Yakutia.
Features
This equipment is used for geological exploration, with the possibility of exploration at any level up to 300 meters. It is also used to create water intake wells constructed to equip a water supply system for various purposes (industrial and domestic use). A feature of the machine is the ability to simultaneously flush or purge processed drifts. It is worth noting that the overall process does not stop at the same time, which ensures uninterrupted work.
The connection and disassembly of the pipes are carried out by screws using a rotator, which eliminates the use of additional devices. Due to the presence of a hydraulic cylinder providing lifting and lowering manipulations, the required constant pressure on the face is controlled even when drilling with pneumatic hammers.
Technical characteristics of the drilling rig URB 2A2
The following are the parameters of the technical plan of the equipment in question:
- Starting diameter of work - 19 cm.
- The depth of well drilling (geophysical / structural / screw /) - 100/300/30 m.
- The same indicator for purging is 30 m.
- The maximum total drilling diameter is 11.8 cm.
- Speed ââ(1/2/3 speed) - 140/225/325 rotations per minute.
- Torque (1/2/3 speed) - 2010/1210/830 Nm.
- The pressure in the system is 100 kg / cm 2 .
- Mast / tool carrying capacity - 6000/4600 kgf.
- Dimensions - 8.08 / 2.5 / 3.5 m. In the working position, the height reaches 8.38 m.
- Weight - up to 13.8 tons.
- Type of compressor - KSBU-4VU1-5 / 9.
Exploitation
The drilling rig URB 2A2 is equipped with a hydraulic system with pressure gauges, which guarantee an optimal mode of operation of the mechanism. Using special filters, oil is cleaned, which allows several times to extend the operating life of the nodes. The installed mechanical type emergency pump allows you to manually deactivate the installation in the event of a vehicle breakdown.
Lifting the working tool is provided in four modes: normal, emergency, fast and slow. It can be suspended in any of the raised positions thanks to the support retractable jacks. The tool can also come down in several modes. A simple but reliable hydraulic system allows full control of the unit without any problems.
The power take-off is equipped with a single gear and a clutch. The part is fixed in the upper compartment of the housing of the ZIL transfer case. Activation of the distributor of the installation itself is carried out by means of the driveshaft and power take-off unit. With this unit, rotation is transmitted to the mud and oil pumps.
Rotator
The rotation mechanism of the URB 2A2 drilling rig, the photo of which is available above, includes a box with three shafts and the same number of speeds, as well as cylindrical and gear elements. The rotator is housed in a cast steel housing, which ensures the strength and reliability of the node. The control panel adjusts the spindle speed, from zero mode to the maximum value.
The hydraulic feed jack includes a rod and a cylinder that receives part of the reactive load. The unit is equipped with a single stage pair action. The mast has a U-shaped configuration, made of channels with additional crossbars. In the inner part there is not only a jack, but also two pipes on which the load acts. This solution allows you to optimize the operation of the drill in difficult conditions. A centering table facilitates the operation of the tool.
Other mechanisms
The drilling rig URB 2A2 includes a tackle system, which allows to double the stroke of a rotating device, it has a reinforced structure with two tensioning devices.
The elevator is responsible for screwing or unscrewing the working pipes and tools. It has a high-quality mount and device, easy to manage. Cartridges for screws give the opportunity to build up and raise units safely with drilling quality control. The structural features of the rotary device allow for double the speed of movement. The mast is automatically transferred to the transport position in the event of a failure of the drive motor or transmission. Using the support jacks, the base vehicle is unloaded.
Scheme
Below is a schematic representation of the URB 2A2 drilling rig, the characteristics of which were discussed above, as well as the interpretation of digital signs.
- Mud pump assembly.
- Power take-off.
- Pump drive
- Hydraulic jack
- Compressors
- Handout.
- Lifting cylinder.
- Rotational mechanism.
- Carriage.
- Elevator.
- Screw Chuck
- Sealing unit.
- Working mast.
- Support jack.
- Felling equipment.
- Control system.
- Base vehicle.
- Frame.
- Distributor.
- Tying the hydraulic unit.