Drilling rig URB 2A-2 based on ZIL 131 when drilling water wells

URB drilling rig based on ZIL-131

An exploration drilling unit (EDU) is the main unit in a drilling rig fleet. The URB is installed on the chassis of a reliable all-wheel drive ZIL-131 off-road truck, so the self-propelled unit can reach any corner of the Moscow region and at any time of the year. This is the best choice for working in hard-to-reach places.

The self-propelled rig is powerful and reliable; it combines the characteristics of an all-terrain vehicle with the unique drilling capabilities of the device itself. This technique is widely used not only throughout Russia, but also in foreign countries.

URB 2A-2 is a bestseller in drilling art and a guarantor of stable operation.
The installation has been tested for decades and has proven that it is capable of performing work of any complexity in different situations and in all weather conditions.
With a URB drilling rig, you can be sure that the work will be done quickly and accurately. The ZIL-131 vehicle, which is used as a chassis, was created in the late 60s for army purposes, but due to its unique characteristics it was noticed by drillers almost immediately. High ground clearance and a 6x6 wheelbase make this truck a true all-terrain vehicle.

In army service, the chassis of this large-capacity vehicle confirmed its uninterrupted operation and the highest reliability. The truck works flawlessly both in the hot steppes of Central Asia and in the snows of the Russian North. In 1974, the ZIL-131 car was awarded the State Quality Mark.

It is no coincidence that such a high award went to a drilling rig based on the ZIL 131, because it is recognized in professional circles as a standard of reliability. The installation is equipped with everything necessary to perform most tasks related to water drilling, as well as when conducting geological and geophysical research in the search for oil and gas fields.

Overall dimensions of the well drilling rig:

• Length - 8 meters;
• Width - 2.8 meters;
• Height - 3.3 meters.

The URB drilling rig is designed for drilling water intake wells using a rotary method with flushing. The maximum depth of water drilling reaches 300 meters, so the equipment is suitable for work throughout the Moscow region. The power of the installation allows for highly efficient drilling in rocks of any strength, so URB copes perfectly with drilling artesian wells on limestone.

The drilling rig is capable of operating in any climatic and weather conditions.

The installation for drilling water wells URB is powered by the engine of a ZIL 131 car. The engine energy is supplied through the power take-off system to the main mechanisms of the installation - motor pumps that convert mechanical force into hydraulic force. The energy of the motor pumps drives the components of the installation - rotation mechanisms and manipulators.

The main advantages of the URB drilling rig based on ZIL 131:

• Reliability
• Versatility
• Patency
• Performance

Interesting fact:

The installation for drilling wells for water URB has a fully hydraulic control; it is assembled from components and assemblies exclusively of domestic production. At the same time, the Russian drilling rig easily competes with any imported equipment of its class.

From the description of ZIL-130S and ZIL-130V1S vehicles for work in the Far North

Yuri Petrov

When creating the design, the main attention was paid to increasing reliability, ensuring reliable engine starting and creating normal working conditions for the driver at low outside temperatures reaching -60° C.

The vehicle is equipped with a high-efficiency engine pre-heater. A contact-thyristor ignition system is used. To ensure an active balance of electricity, a high-power generator is installed. To improve the stability of the engine's thermal regime, an electromagnetic clutch has been introduced that automatically turns off and turns on the cooling system fan. Maintaining the normal temperature of the battery electrolyte is achieved through insulation and introducing heating of the battery with engine exhaust gases.

A powerful heater with increased efficiency is installed in the driver's cabin, and effective thermal insulation is introduced. To prevent fogging and freezing, all cabin windows are made of double glass. Upholstery material and rubber products have increased frost resistance.

Special oils are used for the engine and transmission units to ensure normal vehicle operation at low air temperatures.

The vehicle is equipped with a mechanically driven winch for self-extraction, a winch unit with a fastening cable, a portable independent heater, hood insulation, fog lights, identification lights on the cab roof, additional side direction indicators, a rotating spotlight, an additional air horn, a fire extinguisher and an entrenching tool ( one-handed saw, axe, shovel and crowbar).

The ZIL-130V1S truck tractor was equipped with a roof rack on the cab roof and two spare wheels in a special holder with a device to facilitate their raising and lowering.

What kind of site is needed to drill a well?

To drill a full-fledged artesian well on limestone, access roads with a width of at least 3 meters are required. In this case, the quality of the road surface does not matter.

To place the drilling rig itself and working equipment at the site, it is necessary to prepare a site measuring at least 4 x 9 meters. After drilling, it is recommended to keep the access to the well clear for ease of maintenance of the water intake column. The well is a repairable structure, so you should not erect any buildings next to it so that equipment can easily travel to the site.

Location of the water carrier and kung during drilling

It is ideal if it is possible to place the kung and water carrier next to the drilling rig. In practice, this possibility is not always available. But there is always a way out of the situation, good or not.

The kung can be placed anywhere outside the site, but preferably close. It should not block the road or disturb the neighbors. On-site drillers will always find the best solution for the placement of the kung.

The water carrier can be placed at the other end of the site, or outside it. It is important that the distance from it to the drilling rig does not exceed the length of fire hydrants, usually 30 meters.

A call to our engineers will help you make the right decision: (495) 649-8593

Features of machine operation

Thanks to the equipment with a hydraulic system with pressure gauges, the URB 2A2 drilling rig operates as smoothly and efficiently as possible. The oil is purified through special filters, thanks to which the operating life of the unit is significantly increased. If a vehicle breakdown occurs, the installation can be deactivated manually using a mechanical emergency pump.

For successful operation of drilling equipment, it is necessary that the master carefully study the operating instructions and monitor the serviceability of the mechanisms. It is important to use the grades of oil and lubricant specified in the instructions, comply with the appropriate maintenance requirements, and troubleshoot problems in a timely manner.

Modification PBU-50M

This drilling rig was equipped with equipment for the construction of bored and injection piles. Now PBU-50M is mainly used for these tasks.

This drilling rig differs in appearance in that it was equipped with a different trailer, instead of the standard one on the base model. In addition, it has an hour meter on the gearbox to track the “mileage” of the drill with the power tool. The engine remained the same, but the kinematic diagram of the power extraction and transmission mechanism underwent a number of modifications, thanks to which the installation could drill wells significantly faster.

The hydraulic system was also modified - fuses were installed that prevented spontaneous operation when the vehicle was moving, since the fluid inside the system also moved. The driller's console acquired an emergency light that warned of dangerous oil pressure in the engine.

Comparison of characteristics that have changed:

Rotating installation element

Rotator diagram URB 2A2

This mechanism of the URB 2A2 drilling rig consists of a box with three shafts and three speeds, as well as gear and cylindrical elements. The rotating mechanism is housed in a cast steel housing, making the unit strong and reliable. The spindle speed is regulated using the control panel.

The hydraulic jack of the URB 2A2 feed drilling rig includes a rod and a cylinder. The last element takes on some load. In addition to the jack, there are two pipes in the inner part, which also bear the load. This helps optimize the performance of the drilling rig in difficult conditions.

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