Radial drilling machine 2a554 electrical diagram


The 2A554 radial drilling machine (hereinafter referred to as RSS) is designed for processing oversized surfaces, drilling through holes in bases made of wood or metal. The product is recommended to be used as an auxiliary equipment for countersinking or thread boring.

Unlike the previous model 2K550, it is known for improved performance, compact layout of controls, now they are installed by default on the driving platform - the spindle.

The unit is capable of drilling a hole in any oversized surface, be it metal, wood or cast iron. The main equipment in RSS 2A554 is a rotating element - a drill and its reciprocating feed.

Passport 2А554 (Ø 50 mm) Radial drilling machine (Odessa)

Name of publication: Album No. 1: Operation manual (2A554.00.00.000 RE) – 95 pages Album No. 2: Electrical equipment – ​​55 pages Album No. 3: Information on spare parts (2A554.00.00.000 RE) – 16 pages Publication issue : Odessa Machine Tool Production Association Year of publication: 1989 Number of books (folders): 3 Number of pages: 166 Cost: Negotiable Description: Complete set of documentation
Contents: Album No. 1: Operation manual (2A554.00.00.000 RE) 1. General information about the machines - General view of the machine 2A554 - General view of the machine 2A554F1 2. Basic technical data and characteristics - Basic data - Main dimensions 3. Complete set 4. Instructions for safety measures 5. Composition of the machines - Location of the component parts of the machine 2A554 - Location of the components parts of the 2A554F1 machine 6. Design, operation of machines and their components - Location of symbol plates - Location of controls - Kinematic diagram - Kinematic diagram for the 2A554F1 machine - Base and column - Cooling - Column clamping mechanism - Gearbox - Sleeve clamp - Lifting clamp - Clamping mechanism of the drilling head - Speed ​​​​box and friction clutch - Feed box - Feed mechanism - Feed switching mechanism - Friction clutch control cylinder - Hydraulic preselector - Hydraulic preselector drive - Command device - Spindle - Counterweight - Measuring device (2A554F1 machine) 7. Electrical equipment of the 2A554 machine Electrical equipment of the machine 2А554Ф1 8. Hydraulic and lubrication systems - Hydraulic circuit diagram - Hydraulic system of the drilling head - Hydraulic panel - Lubrication diagram 9. Installation procedure - Transportation of machines - Transportation of the sleeve - Transportation of the plate - Transportation of the column - Transportation of the drilling head - Machine foundation - Installation of the machines - Anchor 10. Operating procedure 11. Possible malfunctions and methods for their elimination 12. Features of disassembly and assembly during repairs 13. Information on spare parts 14. Information on acceptance 15. Storage 16. Instructions for maintenance, operation and repair 17. Manufacturer's guarantees Appendixes: 1. Maintenance of purchased electrical equipment installed on the machine 2. Scheduled maintenance card 3. Instructional and technological maintenance card 4. Accounting for operating time of equipment 5. Accounting for maintenance and repair of equipment Change registration sheet

Album No. 2: Electrical equipment Electrical equipment of the machine (Section 7) - List of machine parts (2A554F1.00.00.000-01E3) - Schematic diagram (2A554F1.00.00.000-01E3) - Location of devices on the machine (2A554F1.00.00.000-01E3) — Location of devices on the panel (2A554F1.00.00.000-01E3) — List of elements (2A554F1.00.00.000-01PE3) — Electrical connection diagram (2A554F1.00.00.000-03.E4) — Connection table (2A554F1.00.00.000 -0ZTE4)

Album No. 3: Information on spare parts (2A554.00.00.000 RE) 1. Layout of rolling bearings of machine tools 2. List of rolling bearings of machine tools 3. List of drawings of assembly units, parts of which must be replaced during operation 4. List of drawings of spare parts* ************

Description of the machine: Certificates of radial drilling machines are a very, very popular document, because it allows you to implement the operation of these industrial positions with the greatest accuracy and professional approach. From this point of view, here we will look at a very well-known and popular in the industry machine model under the full name: 2A554 radial drilling machine. This type of equipment has truly universal capabilities in the implementation of production activities related to drilling operations. The machine was developed and produced by the Odessa Machine Tool Plant, including modifications, which are also in demand in a wide variety of workshops and areas of production of certain products. And this fact is not surprising, because such radial drilling machines are applicable for a wide range of areas related to industry, and are used in repair shops or departments of enterprises where drilling operations and work with workpieces are very necessary. At the same time, thanks to the truly universal features inherent in the design basis, machine tools are used from small-scale to large-scale production involved in factories.

In addition to operations related to drilling, machines of this type can confidently perform a number of other popular operations that are used in an equally wide range. This is metal drilling, countersinking, reaming, trimming ends, including threading with taps, which allows you to perform other operations, especially using all kinds of devices, and this really expands the implementation of the machine. In turn, we can offer a passport for the drilling machine that is most in demand in your production. Moreover, in our archive there is a fairly large amount of various documentation for one or another model of drilling equipment. If we consider the 2A554 machine, then we can offer a complete set of operational documentation, which includes the following sections, which contribute to the most rational operation of the equipment. And the documentation consists of three books, or you can also call it folders. The first part is a manual that, according to the classics, contains the most important and relevant theoretical, but at the same time practical component associated with working on the machine, which is certainly important when approaching its correct operation.

At the same time, the manual certainly has quite a large number of drawings related to the mechanical part of the machine. Using them, you can very successfully study and become familiar with the design features of the presented industrial piece of equipment. Also, the section contains diagrams that are no less important for operation and maintenance. The second section is directly related to the study and operation of a drill for electrical equipment. Here, as in the first part, there is a theoretical instruction on working on the machine and, of course, detailed electrical diagrams of which there are several in the folder, but all of them will be in great demand. Well, the list ends with a section called information on spare parts and is of value in the repair area associated with the restoration of machine parts. In general, machine passports can be downloaded directly from us immediately after payment and receipt of payment from you to our bank account. And this is a very convenient and practical way to acquire a wide variety of documentation for equipment, because the need for a high-quality passport is certainly high. And in our case, all documentation is scanned from the original document and is ready to be sent to your email address.

Table of contents

The 2A554 radial drilling machine is designed for drilling holes in solid material, drilling, countersinking, and also tapping threads.

Increasing the productivity and functionality of the machine is possible with the use of devices and special tools that allow you to perform turning of internal grooves, cutting round plates, as well as work typical for boring machines.

Kronas fittings at affordable prices here!

Workspace dimensions

Design of a radial drilling machine 2A554

  1. Plate;
  2. Cooling system;
  3. Grounding;
  4. Electrical equipment;
  5. Base, column;
  6. Sleeve clip;
  7. Sleeve;
  8. Hydraulic clamp;
  9. Current collector;
  10. Hydro station;
  11. Gearbox;
  12. Lifting mechanism;
  13. Electrical equipment;
  14. Manual movement mechanism;
  15. Steering device;
  16. Spindle;
  17. Feed mechanism;
  18. Friction clutch control;
  19. Electrical equipment;
  20. Accelerated spindle retraction;
  21. Counterweight;
  22. Head clamp;
  23. Pumping station;
  24. Lubrication system;
  25. Hydrocommunications;
  26. Main cylinder;
  27. Gyro selector drive;
  28. Hydropremelector;
  29. Friction clutch;
  30. Gearbox;
  31. Feedbox 24 speeds;
  32. 12 speed feed box;
  33. Drill head;
  34. Hydropanel

Kinematic diagram of the radial drilling machine 2A554

Spindle of radial drilling machine

The spindle of the machine 1 is located in a retractable quill 5. In the front support, in addition to two radial ball bearings, there is also a thrust bearing 3, which takes up the axial load when drilling.

The rear support contains radial and thrust bearings 7 and 6, respectively. The thrust bearings are tightened through the support washer 8 with a nut 9.

Technical characteristics and passport of the radial drilling machine 2A554

The 2A554 radial drilling machine, produced by the Odessa Radial Drilling Machines Plant, was created for processing parts of significant size and weight. Such workpieces are quite difficult to process using a conventional drilling machine, since the operator has to expend serious effort to move them along the surface of the work table. The design features of the machine model 2A554 allow, by manipulating only the working part of the equipment, to drill almost any part of the part, as well as to effectively perform a number of other technological operations.

Machine appearance

According to the technical data sheet, the equipment of this model is used for:

  • drilling holes of various diameters;
  • opening holes;
  • countersinking;
  • cutting in internal thread holes;
  • end processing (trimming).

It is possible to process large-sized workpieces on such equipment efficiently and without significant labor costs on the part of the operator due to the fact that its spindle head has several degrees of freedom.

The main part of the controls of the radial drilling machine model 2A554, in contrast to drilling devices of a standard design, is concentrated in the working head. The latter is located on a special traverse (sleeve), rotating together with the column on which it is mounted. The traverse, in addition to rotation, can move along the column along a vertical axis, and the drilling head can move along the sleeve in a horizontal plane.

Machine controls

Such technical capabilities significantly expand the functionality of the radial drilling machine model 2A554. The control system with which it is equipped makes it quite easy to automate the technological operations performed on it.

Machine 2A554 radial drilling type: functions and device

The Odessa ZRSS 2A554 model is a classic representative of radial drilling equipment, effective when it is necessary to metalwork large and medium-sized metal parts. These machines are large-sized and professional and have an appropriate price; they can be purchased at a price of 1,500,000 rubles and above; in used condition they are also expensive. The need for their installation must be justified; all design features and characteristics should be familiarized with in advance.

Device functions and tasks

A distinctive feature of the 2A554 radial drilling machine is the presence of a rotating column with a multifunctional working head, rotated 360° and processing stationary workpieces fixed on a heavy and stable base with dimensions up to 1600 mm, that is, medium and large. The high number of degrees of freedom of the spindle, coupled with good overload protection, reduces the time of drilling operations and increases their productivity significantly; in terms of saving energy costs, the 2A554 compares favorably with models that move massive parts on the work table.

The technical capabilities of the machine allow you to perform a variety of operations with fairly high accuracy (class H according to GOST 8-82): drilling through and blind holes, countersinking to improve roughness parameters, drilling and boring previously created, including those obtained by casting, rolling threads using taps . Provided that additional devices are attached and a special cutting tool is used, the functions of the model expand to preparing grooves, cutting round plates from thin sheets of metal, forming holes with a square cross-section, grinding in cylinders and valves, and performing other actions inherent in boring-type models.

Design of radial drilling machine model 2A554

The elements that make up the design of the 2A554 radial drilling machine are:

  • a foundation plate that serves both as the base of the machine and as a base for placing the workpiece being processed (to ensure fixation of the latter, there are several T-shaped grooves on the upper surface of such a plate);
  • a column that ensures rotation of the traverse and its movement along a vertical axis (for easy, smooth and accurate rotation, a bearing unit is mounted at the base of the column);
  • traverse mounted on a column;
  • a working head that moves in a horizontal plane along the traverse guides;
  • a mechanism that ensures rotation of the traverse and its fixation in a certain position;
  • main electric motor, drive mechanism, feed control box.

Main components of the machine (click to enlarge)

The controls are located on the side of the drilling head of the 2A554 radial drilling machine, which makes working on it convenient and efficient. The operator sets the modes before starting processing, which makes it possible to increase not only its productivity, but also the accuracy of execution.

Purpose of controls (click to enlarge)

Purpose and design of a metal drilling machine 2A554

The 2A554 radial drilling machine is one of the most popular models of domestic machines in this class, replacing the no less popular, but outdated model 2M55, produced by the Odessa Radial Drilling Machines Plant (OZRSS). The 2A554 machine has high rigidity and is designed to perform a wide range of technological operations related to the processing of blind and through holes with a diameter of up to 50 mm in medium and large-sized parts. It can be used for drilling in solid material, reaming, countersinking, reaming, trimming ends, tapping and other similar operations. Workpieces on radial drilling machines can be secured either on a base, which is made in the form of a table with five T-shaped slots, or on a special side table.

Features of radial drilling machines model 2A554

  • A massive cast foundation plate with grooves for fastening the workpiece or fixtures; it contains a reservoir for coolant and a pump that supplies coolant to the drilling zone;
  • The presence of a column, which, if necessary, can be rotated around a vertical axis on bearings built into the base along with the sleeve 360 ​​degrees;
  • A sleeve with the possibility of vertical movement along the column and a drilling head mounted on it moving in the longitudinal direction;
  • Hydraulic clamping mechanisms that rigidly fix the sleeve on the column and the drilling head on the sleeve in the desired position;
  • Availability of a powerful spindle rotation motor 5.5 kW;
  • Function of automatically switching off the feed when the specified processing depth is reached;
  • All controls of the 2A554 machine are located on the drilling head and are conveniently located for the operator.

Main components and parts of the radial drilling machine 2A554

List of main components and parts of the drilling machine 2A554

  1. Slab – 2M55.00.I0.000
  2. Cooling unit – 2M55.00.12.000
  3. Machine grounding – 2М55.00.86.000
  4. Column electrical equipment – ​​2M55.00.81.000
  5. Base, column – 2М55.00.11.000
  6. Sleeve clamp – 2М55.00.23.000
  7. Sleeve – 2M55.00.2I.000
  8. Hydraulic clamp – 2М55.00.33.000
  9. Current collector – 2M55.00.I4.000
  10. Hydroelectric station – 2M55.00.32.000
  11. Gearbox – 2M55.00.3I.000
  12. Lifting mechanism – 2М55.00.22.000
  13. Hose electrical equipment – ​​2А554.00.94.000
  14. Mechanism for manual movement of the head – 2А554.50.28.000
  15. Steering device – 2А554.50.26.000
  16. Spindle – 2A554.50.55.000
  17. Feed mechanism – 2A554.50.25.000
  18. Friction clutch control handle – 2М55.50.48.000
  19. Electrical equipment of the head – 2А554.50.95.000
  20. Drive for accelerated spindle retraction – 2А554.50.95.000
  21. Counterweight – 2A554.50.37.000
  22. Head clamp – 2М55.50.36.000
  23. Pumping unit – 2А554.50.65.000
  24. Lubricant – 2М55.50.68.000
  25. Hydrocommunications – 2A554.50.67.000
  26. Main cylinder – 2М55.50.66.000
  27. Hydraulic preselector drive – 2М55.50.46.000
  28. Hydraulic preselector – 2A554.50.45.000
  29. Friction clutch – 2M55.50.I5.000
  30. Gearbox – 2A554.50.I6.000
  31. Feedbox (24 steps) – 2A554.50.I7.000
  32. Feedbox (12 steps) – 2A554.50.18.000
  33. Drilling head – 2А554.50.00.000
  34. Hydropanel – 2A554.50.47.000

Diagram of controls for radial drilling machine 2A554

Controls of the drilling machine 2A554 and their purpose

  1. The machine is turned on; the machine is turned off
  2. Grounding
  3. Input switch
  4. Cooling pump switch
  5. Coolant valve
  6. Drill head movement flywheel
  7. Handle for manual rapid approach of the spindle and inclusion of mechanical feed
  8. Drill head release button
  9. Column and drill head release button
  10. Column and drill head clamp button
  11. Dial clamp button for adjusting drilling depth
  12. Feed range switch handle
  13. Counterweight spring tension handle
  14. Automatic cycle switch
  15. Spindle fine manual feed handwheel
  16. Button to disconnect the spindle from the gearbox
  17. Pre-speed knob
  18. Main motor start button
  19. Hydraulic filter warning lamp
  20. Sleeve lowering control button
  21. Pre-feed handle
  22. "General stop" button
  23. Handle for controlling the starting reverse clutch and switching speeds and feeds
  24. Light switch
  25. Sleeve lift control button
  26. Signal lamp for preliminary set of speeds, feeds

In our company you can buy a new radial drilling machine 2A554 at the price of the manufacturer.

How to ensure high-quality and uninterrupted operation of the machine

In order for the technical capabilities of the 2A554 radial drilling machine to be fully realized, it is necessary to properly prepare it for work. Such preparation consists of arranging a level platform for installing the machine, which should be able to support its weight. All structural elements of the device must be checked for visible defects. Only after this can you begin installing the equipment. The electrical network must be designed for the power consumption of the radial drilling machine, which is indicated in the technical data sheet.

Installation dimensions of the machine and foundation diagram

There are several simple rules, following which will allow you to work effectively and safely on such a device, maintaining all its original characteristics for a long time.

  • Any emergency situation that arises when working on a radial drilling machine must be accompanied by its complete disconnection from the power supply. Only after this can you begin to diagnose and repair equipment.
  • Cleaning the machine, changing the position of the workpiece, tightening threaded connections and other auxiliary operations can only be performed after it is turned off.
  • During operation of the machine, it is necessary to regularly monitor the condition of the counterweight, which is responsible for the performance and precise functioning of the spindle assembly.

Naturally, only operators who have the appropriate qualifications and are familiar with safety requirements can be allowed to work on a radial drilling machine.

Technical characteristics and capabilities of 2A554

The performance indicators of this equipment are shown in the table below:

The given characteristics of the radial drilling machine model 2A554 confirm its versatility; the large value of auxiliary processing time inherent in such equipment is reduced due to the presence of a multi-disc friction clutch and hydraulic control of the rotation clamps of the column and the working head itself; the design is well-thought-out and has no disadvantages taken into account. For this reason, it is recommended to purchase it, bypassing any foreign analogues.

Advantages of the model, operating features

Due to its high weight (4700 kg), the 2A554 radial drilling machine needs to prepare its own reliable foundation; the requirements for the power supply network are also quite high (the power of the network is confirmed by calculations, the possibility of quickly turning it off in the event of abnormal and emergency situations is provided). In order to extend the service life of both used and new equipment, measures are taken to reduce the risk of failure of working units: before each start, a visual inspection of the radial drilling machine is carried out, and during metalworking, the condition of the counterweight, which is responsible for the accuracy of the positioning of the working tool, is monitored.

Radial drilling machine 2A554

To carry out operations related to the production of holes or their processing, a 2A554 radial drilling machine is often installed. The model is produced by the Odessa plant, which specializes in the production of such equipment. The model is widely used in cases where it is necessary to process workpieces of large diameter and weight. The large weight causes problems with its movement.

When considering the technical characteristics of the 2A554 radial drilling machine, attention should be paid to the fact that during operation only the working body on which the tool is attached is movable. That is why the design is very practical in use and is suitable for processing a wide variety of workpieces.

Technical characteristics of the machine 2A554

All main technical characteristics of the 2A554 machine are presented in the table below.

Machine characteristics

Below you can download for free the complete technical documentation for the 2A554 machine, namely the machine passport and the operating manual for its electrical equipment.

Passport for radial drilling machine 2A554 (+ manual for electrical equipment)

Application area

The radial drilling machine 2A554, depending on the equipment, can be used for a wide variety of work. Examples include the following operations:

  1. Reaming holes.
  2. Drilling holes of various diameters.
  3. Countersinking.
  4. End processing.
  5. Cutting in the inner surface of a thread.

The radial drilling machine under consideration differs from the standard design in that most of the controls are concentrated on the body of the working head.

Main technical characteristics

Decoding the name of the machine can indicate a fairly large amount of information, but most of it is entered in the passport.

The manufacturer included the following information in the passport:

  1. The accuracy class of the 2A554 radial drilling machine is N. This point determines that this model can be used to obtain very precise parts.
  2. The operation of this equipment determines that the largest diameter of the resulting hole is 50 mm. When drilling cast iron, the figure increases to 63 mm.
  3. All components of the 2A554 radial drilling machine are designed to withstand the load that occurs when producing such holes.
  4. The distance from the spindle axis to the workpiece is adjustable in the range from 375 to 1600 mm. Along the sleeve, the drilling head moves a distance of about 1225 mm.
  5. The design of the 2A554 radial drilling machine also provides for rapid movement of the hose along the column at a speed of 1.4 m/min.
  6. To ensure high functionality, the sleeve can be rotated around the axis of the column by 360 degrees. This feature of the 2A554 radial drilling machine allows you to process workpieces without reinstalling it.
  7. Technical characteristics determine that the size of the surface plate is 1020 by 2555 mm. These parameters determine what dimensions the workpiece can be installed.
  8. The spindle sleeve has a size of 90 m.
  9. The maximum spindle speed varies from 18 to 2,000 rpm. The design allows you to set the desired speed by selecting one of 24 gears. There are special handles for changing speeds.
  10. A hole can be created when a force of 20 kN is reached.
  11. The 2A554 radial drilling machine has a very complex kinematic diagram; several electric motors are installed to transmit movement. The main movement is transmitted from a motor with a power of 5.5 kW, the hose drive has a power of 2.2 kW. In addition, the 2A554 machine has a cooling system, the pressure in which is created by a motor with a power of 0.125 kW.

RSS passport information

Technical characteristics: total weight is 4.7 tons, dimensions 2.66 × 1.02 × 3.30 meters. The accuracy of the classifier corresponds to parameter H. The maximum permitted diameter of drilling a hole for steel marking 45 is 5.0 cm.

For cast iron products, the limit is 6.3 cm. The maximum spindle overhang is 1.6 meters, the minimum is 0.3 meters. The highest height of the sleeve shot is 0.75 meters, the head rotation speed is 1.4 m/min.

The size of the PCC working platform is 1.0×2.5 meters. In this case, it is allowed to install additional equipment to increase accuracy and functionality, but its weight should not exceed 15 kg. The diameter of the sleeve is 90 mm, the maximum number of revolutions is 2 thousand rpm, the total number of speeds is 24. The limit feed per revolution is up to 5.0 mm.

The main drive of the PCC machine is driven by an electric motor with a power of 5.5 kW. The movement of the spindle along the sleeve is carried out by an electrical installation with a power of 2.2 kW. The warranty period is 12 months, as the passport says.

Design features

This 2A554 radial drilling machine has a classic layout, which is represented by the following components:

  1. Foundation slab. This element is the base of the 2A554 machine, which distributes the load and receives the pressure coming from all components, the workpiece and the pressure created at the time of processing the workpiece.
  2. Column. On the machine in question, a column is installed, which is needed to ensure rotation of the traverse and movement of the head in the vertical axis. In the manufacture of the column, cast iron is used, which copes well with vibration and other loads. In addition, cast iron does not react to moisture, which significantly extends its service life.
  3. Traverse. It is located on the column and is designed to move the cutting tool with control elements.
  4. The working head is designed directly to feed the cutting tool. For this purpose, vertical guides are located on the traverse.
  5. The operating instructions provide the ability to rotate the head around an axis, which can significantly speed up work.
  6. This model's electrical circuit provides for the transmission of forces from various motors. The spindle gearbox receives force from the main motor through the drive mechanism. Drilling can take place at a wide variety of speeds, for which it is enough to switch on the required gear. The spindle drive, if the device is in good condition, does not produce much noise, but there is a possibility that if the drive is heavily worn, there will be problems with operation. The model can have quite a lot of malfunctions; it is important to carry out maintenance in a timely manner.
  7. The box table allows you to fasten a wide variety of workpieces, which may differ in shape and size.
  8. The main electric motor is installed on the traverse, another on the column.
  9. Control elements are represented by handles and buttons.
  10. Electrical wiring is hidden in special flexible pipes that can protect them from mechanical and other impacts.

Electrical circuit of the machine 2A554

When considering the information that the manufacturer included in the passport, attention should be paid to the fact that the controls are located on the side of the drilling head. The operation of switching spindle speeds in the 2A554 machine, as well as other functions, is based on setting all parameters immediately before starting drilling. During drilling or other operation, you cannot set other parameters.

Drilling machine gearbox 2A554

Technical capabilities of the model

When considering the purpose of this machine, you should pay attention to the fact that it has a well-thought-out design and decent technical characteristics. The location of individual components determines the high efficiency of the machine and its indispensability during numerous operations. The 2A554 drilling machine, the filling volumes of which can vary significantly, can be used when processing cast iron, ordinary or alloy steel.

Download the passport (operating instructions) of the radial drilling machine 2A554

The 2A554 radial drilling machine has an electrical circuit that determines the supply of coolant under pressure to the cutting zone. Due to this, the cutting speed and feed rate can be significantly increased. The volume of the workpiece to be installed is determined by the size of the table and the height of the head on it.

While reviewing this model, we will also pay attention to the fact that the functionality of the machine can be significantly increased due to additional equipment. There are quite a few different devices on sale, the main limitation concerns weight. So the weight of the tool and equipment should not exceed 15 kilograms. Otherwise, a significant load will be placed on the fastening.

Appearance of machine 2A554

Due to the fact that the 2A554 radial drilling machine, the passport of which should be included in the delivery set, has several moving elements, the structure requires clamps. This machine has two types of clamps:

  1. Hydraulic. The operation of this design is based on the supply of liquid under high pressure to the clamp. A separate pump is responsible for the pressure. In this model, a hydraulic clamp fixes the rotation of the column and the movement of the drilling head along the vertical guides.
  2. Electric. This structural element allows you to slow down the movement of the traverse.

General view of a radial drilling machine

The manufacturer of the radial drilling machine 2A554 installed a friction clutch, which is required to turn on the spindle and change the direction of rotation. However, it is worth considering that the design does not have a safety element. Therefore, overloads should be avoided. The box table for the 2A554 machine is produced using high-strength steel. This is due to the fact that the weight of the workpieces can reach several hundred kilograms, as a result of which strong pressure leads to deformation of the surface.

Technical capabilities of the device

Thanks to a well-thought-out design and the use of high-quality components in its creation, the machine model 2A554 is distinguished by decent technical characteristics, ease of operation and high efficiency. Weighing 4700 kg and dimensions 266.5x103x343 cm, the radial drilling machine of this model corresponds to the “H” accuracy category, which is a good indicator.

Kinematic diagram of the machine

Using this device, you can drill holes with a diameter of up to 50 mm in steel and up to 63 mm in cast iron workpieces. As stated above, using the 2A554 machine you can cut internal threads with a diameter of M52x5 for steel and M54x4 for cast iron.

The passport for the machine also indicates such parameters as the distance from the column to the spindle axis (375–1600 mm), as well as the distance from the end of the spindle to the work table (450–1600 mm). It is these characteristics that mean that it is permissible to process fairly large parts on this machine.

A notable characteristic of this device is the lifting speed of the traverse along the equipment column, which is 1.4 m/min. The machine crossbar together with the column can be rotated through an angle of up to 3600.

The dimensions of workpieces that can be processed on a 2A554 radial drilling machine are determined by the dimensions of the work table (102x255.5 mm). To expand the functionality of the machine, you can install an additional tool on the drilling head, the weight of which should not exceed 15 kg.

Workspace dimensions

The performance and functionality of this radial drilling machine is determined by the characteristics of the spindle head.

  • The spindle rotation speed is in the range of 18–2000 rpm.
  • Number of speeds – 24.
  • Maximum torque – 710 Nm.
  • Feed can be carried out in the range of 0.045–5.0 mm/rev.
  • When performing a feed, a force of up to 20 kN can be created.
  • The mounting hole in the spindle (Morse taper) is KM5.

Radial drilling machine 2A554 as part of a production line

To fix the moving elements of the machine in a certain position, two types of clamps are used:

  • hydraulic (to stop the rotation of the column and move the drilling head along the traverse);
  • electric (for braking the traverse as it moves along the column in the vertical direction).

The design of the radial drilling machine of this model is equipped with several electric motors responsible for the various movements of its elements: 5.5 kW – rotation of the spindle with the cutting tool; 2.2 kW – movement of the drilling head along the traverse. Five additional motors, which operate the coolant pump, are necessary to accurately fix the structural elements of the machine relative to each other and the workpiece.

Electrical diagram of the power part of the machine (click to enlarge)

A friction clutch is installed between the gearbox and the main engine of the machine, which is responsible for turning on, off and changing the direction of rotation of the spindle.

How to extend the life of the device?

If you follow some recommendations, you can significantly extend the life of the device. Let's take the following recommendations as an example:

  1. A level area should be constructed that must withstand the pressure created by equipment, tools and workpieces. Taking into account the fact that the weight of the machine is several tons, it is necessary to prepare the base.
  2. Before installation and operation, the structure should be checked for visible defects.
  3. When installing, take into account the high load placed on the electrical network. Thus, the total power of installed electric motors reaches 9 kW.

In addition, there are several recommendations that should be taken into account when operating this device:

  1. If any emergency occurs, the device should be completely disconnected from the power supply. Repairs and maintenance should only be carried out under conditions of complete blackout. This is due to the fact that during operation the device may move.
  2. Maintenance, repair, and adjustment work can only be performed when the machine is completely turned off.
  3. The design has a counterweight, which is responsible for the performance and precise positioning of the cutting tool. During operation, you should constantly monitor the condition of the counterweight, otherwise problems may arise.

You should also pay special attention to the selected cutting modes. So the cutting speed and feed rate determine the load experienced by the main components. As previously noted, all units are designed to withstand a load of no more than 20 kN. Otherwise, dimensional accuracy and surface roughness will deteriorate. The 2A554 radial drilling machine may have malfunctions related to the drives, coolant supply system, and the integrity of the electric motor device. Also, the fact that the workpieces are heavy determines the possibility of deformation of the body. In such cases, the positioning accuracy of moving structural elements significantly deteriorates.

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