Crane Drilling Machine: description, specifications and reviews

No construction can not do without the use of special equipment. The drill-crane machine also belongs to this. A distinctive feature of this technique is its universality. Scope - and drilling, and high-altitude, and crane. Therefore, the economy of this machine is undeniable. There are two main types of such devices. It's turning and not turning. Both options should be considered in detail.

Non-rotary drilling machine

This device has the following set of equipment:

• Transport base. It can be a truck or a tractor.
• Platform. Specialized frame for placing equipment attached to the transport base.
• Drilling rig. It is equipped with a hydraulic mechanism for drilling.
• Crane device. There are options where a drill and a crane are combined on the same mast.
• Outrigger supports equipped with hydraulic jacks.
• Support stand.
• Electrical equipment.
• Mechanical transmission.
• Hydrosystem.

A more complex mechanism is the second version of the device. It should be considered for comparison.

Rotary Drilling Crane Machine

This device has many mechanisms:

• Transport base. Typically, a truck is used.
• The turntable is fixed to the chassis of the transport base and has a roller-and-swing mechanism.
• Pumping station.
• Support stand for the mast.
• Remote hydraulic operated supports.

It should be noted that such a drilling machine has two bases: a transport and a swivel platform. The second base includes the following type of components:

• Boring and crane mechanism.
• Winch for lifting operations.
• Hydraulic device for lifting and lowering the mast.
• Mechanics for turning the platform.
• The cabin in which the operator of the drilling machine will operate.
• Index of the center of the well.

Rotary machinery differs from the first option with increased productivity. This is achieved due to the fact that several wells are drilled from one position. It is also possible to quickly guide the drill.

Classification of equipment

As we have already established, self-propelled drilling machines can be rotary and non-rotating. In addition, there are a number of other classifications:

• By the type of transport base: machine and tractor. For the first is characterized by a high speed of the installation, for the second - off-road.
• According to the principle of operation: cyclic and continuous drilling.
• By the type of drive of the crane-crane mechanism: mechanical, hydraulic, mixed.
• According to the type of execution of the mechanism for drilling and crane works: combined (on the same mast), separate (separate mast and boom).
• The method of location: for non-revolving - side and rear, for rotary - on the turntable.

The types of classifications are significant. The basic technical requirements for such devices should be considered.

Main characteristics

The drilling machine has a number of basic technical characteristics. Based on their selection of equipment for a particular activity:

• Depth of drilling. For non-revolving machines, this value ranges from two to three meters. For rotary - from 10 m to 15 m.
• Drilling angle. As a rule, it is in the range from 62 ⁰ to 105 ⁰ .
• Diameter of wells. For non-rotating, the standard value lies in the range from 360 mm to 600 mm. For rotary - up to 630 mm.
• The carrying capacity is in the range of 1.25 to 3 tons.
• The maximum length of the lifting load is up to 12 meters.

Depending on the technical specification, the most suitable drilling machine is selected. The transport base is of no small importance. In conditions with a relief soil, a variant based on a tractor is often chosen. For urban conditions - based on the car.

Principle of operation of the crane-crane device

Typically, this installation consists of the following parts: mast, rotary mechanism, rod for the replacement drilling tool, hydraulics for feeding and retrieving the drill, hydraulic cylinders for lifting to the vertical position and lowering to the horizontal.

During transportation, the drilling and crane mechanism is in a horizontal position with an emphasis on a special support post installed on the chassis of the car. In operation, the mechanism remains stable due to outboard hydraulic supports.

Rotation of the drill is due to the conversion through the supply of translational-rotational energy from the engine of the transport base to the rotational mechanism of the drill.

The process of drilling wells occurs simultaneously with the rotational and descending motion of the drill. Typically, the process consists of several identical production cycles of lowering and lifting the mechanism. This is due to the need to unload the soil.

The crane mechanism is driven by a winch. For high-altitude work, there is also a cradle for personnel lifting.

Types of Boers and Methods of Work

There are several types of replacement parts:

• Lobate. Represent a device with two dual-blade blades, equipped with interchangeable cutters. Also included in the kit is a drift and dampers. Zaburnik sets the direction of drilling and keeps it in relation to the axis of the process. The function of the dampers is not to allow the ground to wake up when cutting the bore out of the borehole.
• Screw. The spiral feed belt is fixed to the frame. By the end of it is attached a drill head with cutters and drifters. When drilling wells, the soil is fed in a spiral.
• The ring ones. In this device the body is made in the form of a pipe, along the length of which there are screw blades. On the lower part are fixed cams with incisors and deflecting bars. The drilling process is due to the destruction of the ground and the formation of a radius slit. Further, the soil through the divergent bars is thrown to the outer slit of the wall and fed by blades upward.

Drilling attachments are selected and installed depending on the soil and the required technology for performing the work.

The main advantages of the device

The boring and crane machine (BKM) is widely used due to its undeniable advantages:

• Mobility. She quickly moves around the construction site. If a rotary model is purchased, it is also possible to drill several wells from one stop by means of a turntable.
• Three types of equipment on the same platform. The drill, the crane for lifting the load and, if equipped with a cradle, the ability to perform high-altitude work. Reduces the time to install and install a separate piece of equipment.
• The economy is due to the reduction in the cost of the purchase of three separate units of special equipment. To this, savings are added by minimizing the number of staff. The driver is responsible for the management of the car and the work. Yes, such personnel must be trained and have appropriate approvals.

As can be seen, for many fields of application these advantages will be decisive in the acquisition of such types of special equipment. Moreover, the equipment can be installed both on domestic trucks and on imported ones.

Applications

Most often this special equipment is used in the construction industry.

With its help you can build bridges, fences, wells. Often used for foundation construction.

In addition to civil engineering, the crane-crane self-propelled machine is very popular in the construction of individual housing. Why? Again, thanks to the versatility of the equipment, and accordingly, the economy. Rent such a special equipment will cost less than hiring two or three types of cars separately.

Also this type of special equipment is popular in the arrangement of transmission lines and power supply. Due to its versatility and mobility, such equipment increases the speed of installation of poles several times.

Another direction is the arrangement and gardening of the city. These are painting works at altitude, planting bushes and trees, as well as cutting them. For gardening, such types of devices have found application in forestry. Only there models with a transport base in the form of a tractor are used. It is less mobile, but cross-country.

Reviews

Drilling machine for wells, according to reviews, takes a leading position in comparison with similar types of equipment. As many consumers say, the use of such special equipment increases the rate of erection of the piling and drilling base several times. Also, this version of the technology has proven itself in the arrangement of fences, where without wells and the installation of pillars is indispensable. A number of reviews indicate significant savings due to the fact that it is possible to perform two types of work: drilling and installing poles.

Professional organizations also note the convenience, economy and relevance of this type of equipment.

So, we found out what the drilling machine (BKM) is. As can be seen from the description and from the reviews, such elements will always be in demand. Those organizations that know how to take their money, of course, will give preference to this type of special equipment.