Senior Lecturer
Hydraulic and pneumatic systems. Part 1: Volumetric hydraulic and pneumatic machines: textbook allowance/ Novosib. state agrarian univ. Engineer. Institute; comp.: S.P. Matyash, S.V. Rechkin. - Novosibirsk: NSAU Publishing House, 2013. - 234 p.
Hydraulic and pneumatic systems. Part 2: Blade machines: textbook allowance/ Novosib. state agrarian univ. Engineer. Institute; comp.: S.P. Matyash, S.V. Rechkin. - Novosibirsk: NSAU Publishing House, 2013. - 161 p.
Pneumatic drive of automotive and tractor equipment: textbook allowance/ Novosib. state agrarian unt-t. Engineer. Institute; comp.: S.P. Matyash, S.V. Rechkin. - Novosibirsk: NSAU Publishing House, 2013. - 234 p.
Hydraulic and pneumatic systems: method. instructions for practice classes/ Novosib. state agrarian univ. Engineer. Institute; comp.: S.P. Matyash, S.P. Salnikov. - Novosibirsk, 2014. - 16 p.
Checking and adjusting pneumatic brake drive devices: method. instructions for performing lab. works/ Novosib. state agrarian univ. Engineer. Institute; comp.: S.P. Matyash, P.I. Fedyunin. - Novosibirsk, 2014. - 24 p.
method. instructions for self work/ Novosib. state agrarian univ. Engineer. Institute; comp. S.V. Rechkin. - Novosibirsk, 2014. - 19 p.
List of questions to prepare for the test
1. How and in what industries is compressed air used.
2. What does the compressor unit consist of, its purpose. Definition of a compressor.
3. Classification of compressors and stations.
4. Piston compressors. Calculation of compressor drive motor power.
5. Rotary compressors, classification, application. Advantages and disadvantages.
6. Pneumatic brake drive car chassis brakes. Are common technical requirements. Advantages and disadvantages. Structural division of the drive.
7. Single-wire and two-wire drive. Advantages and disadvantages. Trends in the development of pneumatic drives for automobile brakes.
8. Basic elements of pneumatic devices. Valves.
9. Basic elements of pneumatic devices. Follower mechanisms and elastic elements.
10. Preparation and accumulation devices compressed air. Filters, regulators, regulators, moisture-oil separators, receivers.
11. Compressed air preparation and storage devices. Frost protectors, dehumidifiers, safety valves.
12. Apparatuses of control bodies.
13. Operation of the trailer air distributor.
14. Elements transmission mechanism brake drive.
15. Actuators of the pneumatic drive for controlling the brakes.
16. Control and alarm elements.
17. Pneumatic brake drive of the KAMAZ-5320 vehicle.
18. Pneumatic brake drive of the MAZ-6420 car.
19. Pneumatic brake drive of the URAL-4310 car.
20. Pneumatic brake drive for semi-trailers.
21. Pneumatic brake drive of the car ZIL-433100.
22. Working brake system (using the example of the KAMAZ-5320 pneumatic drive).
23. Spare and parking braking systems(using the example of the KAMAZ-5320 pneumatic drive).
24. Auxiliary and spare brake systems (using the example of the KAMAZ-5320 pneumatic drive).
25. Compressed air preparation system (using the example of the KAMAZ-5320 pneumatic drive).
26. Operation of the pressure regulator.
27. Operation of a two-section brake valve.
28. Operation of a single safety valve.
29. Operation of the double safety valve.
30. Operation of the triple safety valve.
31. Operation of the accelerating valve.
32. Operation of the brake chamber.
33. Operation of a spring accumulator.
34. Operation of the isolation valve.
35. Operation of a push-button pneumatic valve.
36. Operation of connection heads type A, PALM.
37. Operation of the trailer brake control valve with a single-line actuator.
38. Operation of the trailer brake control valve with a two-wire actuator.
39. Operation of the brake force regulator.
40. Operation of the pressure limitation valve.
41. Working fluids in volumetric hydraulic transmissions (properties, requirements).
42. Requirements for the working gas of pneumatic transmissions.
43. Reciprocating piston pumps (definition, classification, diagrams, hydraulic converters, scope of application).
44. Rotary radial piston hydraulic machines (definition, classification, typical designs, diagrams of contact of the piston with the stator ring).
45. Axial piston hydraulic machines (definition, classification, advantages and disadvantages, principle of operation).
46. Plate hydraulic machines (classification, principle of operation, power loss and uneven supply, methods of unloading plates).
47. Gear hydraulic machines (principle of operation and classification, pulsation of discharge pressure, forces acting on bearings and methods of compensating them).
48. Torque converter, fluid coupling (transformation ratio, torque equation on wheels, efficiency, transparency coefficient).
Glossary of terms
A pump is a hydraulic machine designed to create a flow of working fluid.
The hydraulic motor converts the flow energy working fluid, developed by the hydraulic pump, into the rotational energy of the output shaft for actuation actuator machines and equipment.
A plate hydraulic machine (vane hydraulic machine) is a rotary volumetric hydraulic machine in which the displacers are two or more plates (vanes).
Piston pump ( plunger pump) is one of the types of volumetric hydraulic machines in which the displacers are one or more pistons (plungers) performing reciprocating motion.
A hydraulic displacer is a volumetric hydraulic machine designed to convert the flow energy of one working medium into the flow energy of another medium without changing pressure.
Hydraulic cylinders are volumetric hydraulic machines and are designed to convert the energy of the working fluid flow into mechanical energy of the output link.
Hydraulic distributor (hydraulic distributor) is a device designed to control hydraulic flows in a hydraulic system using external influence (signal).
A hydraulic device is a device designed to change or maintain a given constant pressure or flow of working fluid, or to change the direction of flow of working fluid.
A hydraulic valve is a hydraulic device in which the opening value of the working flow area changes under the influence of the flow of working fluid passing through it.
A pressure-reducing valve is a pressure hydraulic valve designed to maintain more than low pressure than the pressure in the supply flow.
A flow limiter is a valve designed to limit flow in a hydraulic system or in any section of it.
A flow divider is a flow ratio valve designed to divide one flow of working fluid into two or more equal flows, regardless of the amount of back pressure in each of them.
Throttles are designed to regulate the flow of working fluid in the hydraulic system or in its individual sections and the associated regulation of the speed of movement of the output link of the hydraulic motor.
A hydraulic accumulator is a hydraulic reservoir designed to accumulate the energy of a working fluid under pressure for the purpose of subsequently using this energy in a hydraulic drive.
Hydraulic booster is a set of hydraulic devices and volumetric hydraulic motors in which the movement of the control element is converted into the movement of the controlled element more power, coordinated with the movement of the control element in speed, direction and displacement.
Hydraulic coupling (hydraulic coupling, turbo coupling) - type hydrodynamic transmission, in which, unlike mechanical coupling, there is no rigid kinematic connection between the input and output shafts.
A torque converter (turbo converter) or torque converter is a device used to transmit torque from the car engine to the gearbox and allows automatic and stepless changes in the torque and speed transmitted to the gearbox.
Pneumatic motor, pneumatic motor - energy power
a machine that converts the energy of compressed air into mechanical work.
Pneumatic drive (pneumatic drive) is a set of devices designed to drive machines and mechanisms using pneumatic energy.
The working brake system is designed to reduce the speed of the vehicle or stop it completely.
The parking brake system provides braking of a stationary vehicle on a horizontal section, as well as on a slope and in the absence of a driver.
The spare brake system is designed to smoothly reduce the speed or stop a moving vehicle in the event of a complete or partial failure of the working system.
Brake system auxiliary vehicle serves to reduce load and temperature brake mechanisms service brake system.
The emergency brake release system is designed to release spring energy accumulators when they are automatically activated and the vehicle stops due to a compressed air leak in the drive.
Linear drives designed to drive parts of machines and mechanisms in linear translational motion. Actuators convert electrical, hydraulic or compressed gas into motion or force. This article provides an analysis of linear actuators, their advantages and disadvantages.
How linear actuators work
Due to the absence of liquids, there is no risk of environmental pollution.
Flaws
The initial cost of electric drives is higher than pneumatic and hydraulic ones.
Unlike pneumatic actuators, electric actuators (without additional means) are not suitable for use in hazardous areas.
During prolonged operation, the electric motor may overheat, increasing wear on the gearbox. The electric motor may also have big sizes, which may lead to installation difficulties.
Electric drive force, permissible axial loads and the speed parameters of the electric drive are determined by the selected electric motor. When it changes given parameters the electric motor needs to be replaced.
Linear electric drive, including a rotating electric motor and a mechanical converter
Pneumatic actuators
Advantages
Simplicity and economy. Most pneumatic aluminum actuators have maximum pressure up to 1 MPa with a working cylinder diameter from 12.5 to 200 mm, which approximately corresponds to a force of 133 - 33000 N. Steel pneumatic actuators usually have a maximum pressure of up to 1.7 MPa with a working cylinder diameter from 12.5 to 350 mm and create force from 220 to 171000 N.
Pneumatic actuators allow precise control of movement, providing accuracy within 2.5 mm and repeatability within 0.25 mm.
Pneumatic actuators can be used in areas with extreme temperatures. Standard temperature range is from -40 to 120 ˚C. From a safety perspective, using air in pneumatic actuators eliminates the need for hazardous materials. These drives meet explosion-proof and safety requirements, since they do not create a magnetic field due to the absence of an electric motor.
IN last years In the field of pneumatics, advances have been made in miniaturization, materials, and integration with electronics. The cost of pneumatic actuators is low compared to other actuators. Pneumatic drives are lightweight and require minimal maintenance and have reliable components.
Flaws
The pressure loss and compressibility of air make pneumatic actuators less efficient than other methods of generating linear motion. Limitations of the compressor and supply system mean that low pressure operation will result in low forces and speeds. The compressor must run all the time even if the drives are not moving anything.
For really efficient work pneumatic actuators must be sized specifically for each application. Because of this, they cannot be used for other tasks. Accurate control and efficiency require properly sized distributors and valves for each application, adding cost and complexity.
Although air is readily available, it can become contaminated with oil or grease, resulting in downtime and maintenance.
Hydraulic drives
Advantages
Hydraulic drives are suitable for tasks requiring large forces. They can produce 25 times more force than pneumatic actuators of the same size. They operate at pressures up to 27 MPa.
Hydraulic motors have high rate power per volume.
Hydraulic drives can keep force and torque constant without the pump supplying additional fluid or pressure, since liquids, unlike gas, are practically not compressed.
Hydraulic drives can be located at a considerable distance from pumps and motors with minimal loss of power.
Flaws
Like pneumatic actuators, fluid loss in hydraulic actuators results in less efficiency. In addition, fluid leakage leads to contamination and potential damage to nearby components.
Hydraulic actuators require many accompanying components, including a fluid reservoir, motors, pumps, bleed valve, heat exchanger, etc. Therefore, such actuators are difficult to locate.
I APPROVED
First Deputy directors
Full name
"__"___________ 20__
Appraisal Fund
basic educational program
secondary vocational education (PPSSZ, PPKRS)
Full-time form of education
Qualification: technologist
Specialty: 02/15/01Installation and technical operation industrial equipment
Course: 2
Gr.251
Ulan-Ude, 2016
CONTENT
WITH.
Passport
assessment fund
by discipline HYDRAULIC AND PNEUMATIC SYSTEMS
1. The fund of assessment tools allows you to evaluate:
Mastering professional competencies (PC) corresponding to the type of professional activity and general competencies:
PC 1.2. Slaughter livestock, poultry and rabbits.Skills to apply different kinds machines and mechanisms and their operating principles,
Practical work No. 5,6
PC 1.3. Conduct the process of primary processing of livestock, poultry and rabbits.
Ability to determine kinematic and dynamic characteristics;
types of kinematic pairs;
types of connections of parts and machines;
Practical work No. 2,5,6
PC 1.4. Provide work technological equipment primary workshop and poultry workshop.
Ability to work with basic assembly units and parts;
Practical work No. 1.6
PC 2.2. News technological process processing of slaughter products (by type).
principle of interchangeability;
types of movements and mechanisms that transform movements;
Practical work No. 5,7
PC 2.3. Ensure the operation of technological equipment in the meat and fat building workshops.
The ability to distinguish between types of gears, their structure, purpose, advantages and disadvantages, symbols on diagrams;
Practical work No. 4.2
PC 3.2. Conduct the technological process of sausage production.
Ability to calculate the nature of the connection of parts and assembly units;
Practical work No. 1,4
PC 3.3. Conduct the technological process of production of smoked products and semi-finished products.
Ability to calculate the nature of the connection of parts and assembly units;
Practical work No. 3.5
PC 3.4. Ensure the operation of technological equipment for the production of sausages, smoked products and semi-finished products.
Ability to calculate the nature of the connection of parts and assembly units;
Practical work No. 2,3
OK 1.
Understand the essence and social significance of your future profession, show sustained interest in it.
Practical work No. 1, 5,6
OK 2.
Organize your own activities, determine methods and means of performing professional tasks, evaluate their effectiveness and quality.
Practical work No. 2,5,6
OK 3.
Make decisions in standard and non-standard situations and bear responsibility for them.
Practical work No. 2,5,6
OK 4.
Search and use information necessary for the effective performance of professional tasks, professional and personal development.
Practical work No. 7,6
OK 5.
Use information and communication technologies in professional activities.
Practical work No. 2,5,6
OK 6
Work in a team and team, communicate effectively with colleagues, management, and consumers.
Practical work No. 1.6
OK 7
Take responsibility for the work of team members (subordinates) and the results of completing tasks.
Practical work No. 2,4,3
OK 8
Independently determine the tasks of professional and personal development, engage in self-education, and consciously plan professional development.
Practical work No. 5,7
OK 9.
To navigate the conditions of frequent changes in technology in professional activities.
Practical work No. 1.5
Acquisition during development academic discipline « Technical mechanics» practical experience
Evaluate the efficiency, reliability and simplicity of design of hydraulic and pneumatic drives of various machine tools using established indicators.Assessment of the efficiency, reliability and simplicity of design of hydraulic and pneumatic drives of various machine tools.
Requirements for their implementation
Mastering the skills of managing work related to the use of lifting mechanisms during the installation and repair of industrial equipment;
Mastering the skills of monitoring installation types of work.
Mastering the skills of carrying out commissioning and testing of industrial equipment after installation and participating in them.
Participation in conducting techniques for determining methods for restoring parts and participating in the process of their manufacture;
Mastering skills and acquiring knowledge
Evaluating the efficiency, reliability and simplicity of design of hydraulic and pneumatic drives of various machine tools using established indicators.- abilityensure control of installation and repair of industrial equipment using instrumentation;
Practical work No. 2-4
Learned knowledge
Fundamentals of hydraulics and pneumatics;
Ability to apply the basics of hydraulics and pneumatics in professional activities
The concept of hydraulic drive
Design features of hydraulic and pneumatic systems;
- carrying out controlinstallation and repair of industrial equipment using instrumentation;
Hydraulic and pneumatic systems
Principles of construction and design of hydraulic and pneumatic drives of mechanical engineering equipment;
Carrying out commissioning and testing of industrial equipment after repair and installation;
Structure of volumetric hydraulic transmission
Key indicators of drive efficiency and reliability
- understanding the basicsrestoration of parts and participation in the process of their manufacture;
Efficiency and reliability of a multi-stage compressor.
1.2. System of monitoring and evaluation of mastering the curriculum of an academic discipline
"Hydraulic and pneumatic systems"
Forms of intermediate certification in OPOP when mastering an academic discipline
Current control of mastering the program of an academic discipline is carried out within the educational time allocated for studying the academic discipline using such methods as oral, written, practical, and self-control.The subject of assessment of mastery of an academic discipline is skills and knowledge. Differentiated credit in an academic discipline is carried out taking into account the results of current control. Current control includes performance assessment practical work, performing independent student work and tests in sections of the academic discipline.
Control and assessment of industrial practice is carried out on the basis of the student’s certification sheet from the place of internship, compiled and endorsed by a representative educational institution or the responsible person of the organization (base of practice). The certification sheet reflects the types of work performed by the student during the internship, the quality of performance in accordance with the technology or requirements of the organization in which the internship took place, and characteristics of the student’s educational and professional activities during the internship.
Final control of mastering a type of professional activity. Carrying out work on organizing and carrying out professional tasks is carried out on a differential test.
The condition for admission to the test is passing all practical work.
The differential test is carried out in the form of completing a competency-oriented practical task, which is professional and complex in nature. The tasks are aimed at testing the mastery of the type of professional activity as a whole.
The condition for positive certification (the type of professional activity has been mastered) at the qualification exam is a positive assessment of the mastery of all professional competencies according to all controlled indicators.
If the conclusion is negative according to at least one of the prof. Competencies, the decision is made “the type of professional activity has not been mastered”
- Name
Code of controlled competence (or part thereof)
4.2. Typical tasks for current certification in an academic discipline
Set of lecture materials
HYDRAULIC AND PNEUMATIC SYSTEMS
Attached electronically
Introduction
Physical basis of functioning
The concept of hydraulic drive
Laws of gases
The concept of a pneumatic drive
Hydraulic and pneumatic systems
Fundamentals of gas dynamics
Practical work
1.Calculation of hydraulic system parameters
2. Determination of the main dimensions and parameters of the compressor
3. Construction of indicator charts
4. Calculation of power consumption and selection of electric motor
5. Selecting an electric motor
6. Drive power calculation
7. Power calculation of the drive
8. Calculation of the pneumatic system
9. Calculation of air flow
10. Calculation of drive response time
11. Calculation of cylinder B
12. Drive power calculation
13. Calculation of the pneumatic system
14. Calculation of drive response time
Questions for final control
1. Block diagram of the hydraulic drive
2. Classification and principle of operation of hydraulic drives
3. Advantages and disadvantages of hydraulic drive
4. Characteristics of working fluids
5. Selection and operation of working fluids
6. Hydraulic lines
7. Connections
8. Calculation of hydraulic lines
9. Gear-type hydraulic machines
10. Vane pumps and hydraulic motors
11. Radial piston pumps and hydraulic motors
12. Axial piston pumps and hydraulic motors
13. Mechanisms with flexible separators
14. Classification of hydraulic cylinders
15. Straight-line hydraulic cylinders
16. Calculation of hydraulic cylinders
17. Rotary hydraulic cylinders
18. Spool valves
19. Crane hydraulic valves
20. Valve hydraulic distributors
21. Pressure hydraulic valves
22. Pressure reducing valve
23. Hydraulic check valves
24. Flow limiters
25. Flow dividers (adders)
26. Throttles and flow regulators
27. Hydraulic tanks and heat exchangers
28. Filters
29. Sealing devices
30. Hydraulic accumulators
31. Hydraulic locks
32. Hydraulic pressure and time switches
33. Measuring tools
34. Classification of hydraulic boosters
35. Spool-type hydraulic booster
36. Hydraulic booster with nozzle and damper
37. Power steering with jet tube
38. Two-stage amplifiers
39. Methods for unloading pumps from pressure
40. Throttle control
41. Volume control
42. Combined regulation
43. Comparison of control methods
44. Hydraulic systems with adjustable pump and throttle
45. Hydraulic systems with two-stage boost
46. Hydraulic systems of continuous (oscillatory) motion
47. Electro-hydraulic systems with adjustable pump
48. Hydraulic systems with two twin pumps
49. Powering two or several hydraulic motors with one pump
50. General information on the use of gases in technology
51. Features of pneumatic drive, advantages and disadvantages
52. Air flow
53. Preparation of compressed air
54. Actuating pneumatic devices
55. Installation of volumetric hydraulic drives
56. Operation of volumetric hydraulic drives in conditions low temperatures
57. Basic problems in hydraulic systems and ways to eliminate them
evaluation tool**
Hydraulics
Individual task
OK-1...9,
PC-1.1-1.5, 2.1-2.4, 3.1-3.4
Pneumatic drive
Individual task
OK-1...9,
PC-1.1-1.5, 2.1-2.4, 3.1-3.4
Dynamics
Individual task
OK-1...9,
PC-1.1-1.5, 2.1-2.4, 3.1-3.4
Compressor is a source of compressed air that supplies all units of the pneumatic system. On trucks and buses, single-stage, two-cylinder, single-acting compressors are used.
Compressor performance depends on rotation speed crankshaft n, stroke and piston diameter. It is within the range (40¸ 170) l/min at n=1000 min -1 . The power consumed by the compressor is (0.5¸ 2.2) kW (0.7¸ 3.0 hp).
In order to save energy costs for the compressor drive, the air supply to the system is switched off when the pressure in it reaches a predetermined level (7.0 - 7.3 kg/cm 2). At this pressure, the pressure regulator is activated and allows compressed air to enter the unloading device.
In the ZIL-130 car, the pressure regulator supplies compressed air through a horizontal channel to the compressor cylinder block under the plungers 1 of the unloading device shown in Fig. 8.2. The plungers, through pushers 2, open the intake valves 3 of both cylinders, communicating the cylinder cavities with each other. Thus, the air is not compressed, but is pumped from cylinder to cylinder without entering the system. (The theoretical specific work expended in the compressor is determined by the formula, from which it is clear that, with equal air pressures at the beginning R 1 and at the end R 2 compression processes, it is equal to zero). When the air pressure in the car system decreases to a certain level (5.6¸ 6 kg/cm 2), the pressure regulator stops the air supply and connects the sub-plunger space to the atmosphere. The plungers 1 lower, releasing the inlet valves 3, and the compressor begins to pump air into the pneumatic system.
Pressure regulator- serves to automatically maintain the required air pressure in the pneumatic system. It limits the minimum and maximum limits pressure in the substation by supplying compressed air to the compressor unloading device or removing it from it, while ensuring that the compressor air supply to the system is turned on or off.
In domestic cars, two types of pressure regulators are used: with ball valves and diaphragm ones. The pressure regulator with ball valve AR-10 is shown in Fig. 8.3.
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Housing 6 contains two ball valves 4 and 5, which act on rod 3, connected to the adjusting spring 9 through ball 2. When the pressure in the pneumatic system is below the maximum, spring 9 holds inlet valve 5 is pressed against the socket in housing 6 and the cavity of the compressor unloading device communicates with the atmosphere. If the pressure in the system exceeds the maximum, then under the influence of pressure the inlet valve 5 will open the hole and at the same time the outlet valve 4 will close the outlet hole of the socket 8. In this position, the connection of the cavity of the compressor unloading device with the atmosphere is interrupted. The compressed air passes through the inlet valve 5 and enters the compressor unloader.
The upper pressure limit is adjusted by cap 1 (the tension of spring 9 is changed). The pressure difference at which the unloading device is turned on or off is set by changing the number of gaskets 7 under the exhaust valve body 6. When gaskets are removed, the pressure difference increases, and when gaskets are added, it decreases.
The AP-11 pressure regulator is attached to the compressor cylinder block and differs from the AP-10 by the presence of two filters at the inlet and outlet, which increases reliability.
Oil and moisture separator(Fig. 8.4) - installed in front of the cylinders and is designed to clean the compressed air coming from the compressor from oil and moisture. Oil has a harmful effect on the rubber parts of the pneumatic system, and water vapor, condensing in the system components at subzero temperatures, freezes, which leads to disruption of the operation of the main elements of the car's pneumatic system.
Installed in building 1 check valve 2, pressed to the socket by a spring 3. The top of the body is closed with a plug 4. To seal the body and the glass 7, a rubber ring 8 is installed (sealing occurs when the conical tip of the tie rod 6 is tightened). Air from the compressor enters hole A, passes through the brass mesh of element 5, separated from oil and moisture, enters the hole in the rod, and, pressing the check valve, exits into the pipeline connected to the cylinder.
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The oil and moisture remaining on the mesh drain into glass 7. To release condensate, a drain tap is installed at the bottom of the glass.
To increase the reliability of the pneumatic system and prevent condensate from freezing, an antifreeze pump is used, which is installed between the oil and water separator and the pressure regulator. It serves to supply the pneumatic system with a portion of frost-resistant liquid, which is located in a special tank.
The antifreeze pump should only operate in the cold season. In warm weather it is removed. It is filled with a mixture of ethyl (300 cm 3) and isoamyl (2 cm 3) alcohols.
Air cylinders- serve to accumulate air compressed in the compressor. Thanks to them, the compressor operates under load for a short time, and when a certain pressure in the cylinders is reached, it is unloaded for a while until a certain amount of air is consumed from them.
Depending on the consumption of compressed air by consumers, it is necessary to have a certain reserve, which should be enough for a certain period of operation of the pneumatic system in the event of a sudden stop of the compressor.
The total volume of the cylinders affects the operation of the compressor. When installing large-volume cylinders, the compressor turns on less often, but runs longer, which can lead to overheating and reduced performance. At small volumes, the time of continuous operation of the compressor is reduced, but the frequency of its switching on increases.
Most common air tank consists of a cylindrical shell and two stamped curved bottoms welded to it. On the cylinders, bosses are welded to the bottoms and to the shell at the top and bottom, having threaded holes for connecting air ducts and drain taps. After welding, the cylinders are coated with corrosion-resistant paint on the outside and inside and tested for leaks under pressure (12¸ 20) kg/cm 2 .
Safety valve - designed to protect the pneumatic system from excessive increase in air pressure in the event of a malfunction of the automatic pressure regulator. It is installed on one of the air cylinders.
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There are 2 valves in the body (Fig. 8.5), a fitting 1 with a socket for valve 3 is screwed in at one end, and a control screw 6 at the other. The steel ball is pressed to the socket through the composite rod 7 by the force of spring 4. The spring is adjusted to the maximum pressure (9¸ 9.5) kg/cm 2, at which the air squeezes the ball from the socket and escapes into the atmosphere. The valve is adjusted with screw 6 and locked with locknut 5.
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Check valves- serve to prevent air leakage into the atmosphere from cylinders in the event of damage to a part of the system connected to other cylinders, or in the event of a sharp drop in pressure in the system connecting the compressor to the cylinders. They are installed at the inlet of air cylinders.
The check valve shown in Fig. 8.6, consists of a body 1, a tube with holes 2, a plate valve 3 and a spring 4. This valve is installed inside the cylinder. The possibility of condensate accumulating in it and freezing of the valve is excluded, because The condensate drains into the air tank.
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Drain taps- designed for periodic draining of condensate from all cylinders and the oil and water separator. Condensate is released by tilting valve 3 using ring 5. Spring 2 presses the valve to seat 4 in normal condition. Using fitting 1, the valve is screwed into the cylinder.
State educational institution
secondary vocational education
"Kazan Aviation Technical College named after P.V. Dementiev"
WORKING PROGRAMM
disciplines __OP.06 “Hydraulic and pneumatic systems”
For specialty02.24.01 “Production aircraft»
Put into effect
Kazan
2014
APPROVED Subject (cycle) commission of special disciplines (name of commission) _____________________________ _____________________________ Protocol No. Chairman A.T.Garipova (personal signature) (initials, Surname) ______________ (date of) | Compiled in accordance with the requirements of the main professional educational program of the Federal State Educational Standard for Secondary Professional Education in the specialty 02/24/01. Aircraft production (code) (name of specialty) |
AGREED | I APPROVED |
Deputy Director for Research methodological work E.R. Sokolova __________ Developer(s): KATC teacher (job title) | Deputy Director for educational work R.R. Shamsutdinov _________ (personal signature) (initials, surname) (date) V.P. Danilova _________ ______________ ____________ _________________ ____________ (personal signature) (initials, (date) Surname) |
Reviewers: KATC teacher (position, name Organizations) _________________________________ (position, name Organizations) | __________________________ _________ (initials, (phone) Surname) ___________________________________ (initials, (phone) Surname) |
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- PASSPORT OF THE WORKING PROGRAM OF THE EDUCATIONAL DISCIPLINE
Hydraulic and pneumatic systems
- Scope of application
Work program of the academic discipline“Hydraulic and pneumatic systems” is part of the approximate basic professional educational program in accordance with the Federal State Educational Standard in the specialty 24.02.01 “Aircraft Production” of basic training.
The work program of the academic discipline can be used in additional vocational education(in advanced training and retraining programs) and vocational training in blue-collar professions: 18466 “Mechanical assembly mechanic.”
- The place of the discipline in the structure of the main professional educational program.
Discipline OP.06 “Hydraulic and pneumatic systems” is included in the professional cycle as a general professional discipline.
1.3.Goals and objectives of the discipline - requirements for the results of mastering the discipline:
As a result of studying the discipline, the student should be able to:
Draw up schematic diagrams of hydraulic and pneumatic systems;
Perform calculations to determine the parameters of hydraulic and pneumatic systems;
As a result of studying the discipline, the student should know:
Physical basis of the functioning of hydraulic and pneumatic systems;
Devices and principles of operation of various types of hydraulic and pneumatic system drives;
Methodology for calculating the main parameters different types drives of hydraulic and pneumatic systems;
As a result of studying the discipline, the following competencies are formed:
OK 1.Understand the essence and social significance of your future profession, show sustained interest in it.
OK 2. Organize your own activities, determine methods and means of performing professional tasks, evaluate their effectiveness and quality.
OK 3. Make decisions in standard and non-standard situations and take responsibility for them.
OK4. Search and use information necessary for the effective performance of professional tasks, professional and personal development.
OK 5. Use information and communication technologies to improve professional activities.
OK 6.Work in a team and team, communicate effectively with colleagues, management, and consumers.
OK8.Independently determine the tasks of professional and personal development, engage in self-education, consciously plan professional development;
PC 1.1. Analyze the production facility: the design of the aircraft, assemblies, components, parts, systems, design documentation for their manufacture and installation.
PC 2.1. Analyze technical task to develop the design of simple parts and components of products and equipment. Link and base elements of products and equipment along the technological chain of their production and assembly.
PC 2.2. Choose constructive solution node.
PC 2.3. Perform the necessary standard calculations during design.
PC 2.4. Develop a detailed design of parts and assemblies in accordance with the requirements Unified system design documentation (ESKD).
PC 3.2. Check the quality of products and/or work performed.
The maximum academic load for a student is 69 hours, including:
the student's mandatory classroom teaching load is 46 hours;
independent work of the student 23 hours.
2. STRUCTURE AND CONTENT OF THE SCHOOL DISCIPLINE
2.1. Scope of academic discipline and types of academic work
Type of educational work | Number of hours |
Mandatory classroom teaching load (total) | |
including: | |
Laboratory exercises | |
Practical lessons | not provided |
Test papers | |
Independent work student (total) | |
including: | |
Working with technical literature and making notes. | |
Problem solving. | |
Studying additional literature and preparing a report | |
final examinationin the form of differentiated credit |
|
2.3. Thematic plan and content of the academic discipline
"Hydraulic and pneumatic systems"
Name of sections and Them | independent work of the student | Volume hours | Level development |
Section 1. Physical basis of systems functioning | |||
Introduction | A brief history of the development of hydraulics, hydraulic machines and hydraulic pneumatic devices. The importance of hydraulic and pneumatic systems in aviation production. Objectives of the discipline in professional activity. Advantages and disadvantages of hydraulic and pneumatic drives, areas of their application, structure, classification. | ||
Topic 1.1. Working fluids and oils | Functional purpose of working fluids. Definition of liquid. The concept of real and ideal fluid. Basic mechanical and physical properties of liquids. Instruments for measuring liquid viscosity. Dependence of physical properties of liquid on temperature and pressure. Characteristics of working fluids and their substitutes, requirements for them. Selection of working fluids. | ||
Laboratory work No. 1 | |||
Fluid viscosity measurement |
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Independent work: Working with technical literature on self-study and drawing up brief notes on the basic physical properties and special conditions of working fluids (obliteration and cavitation) used in hydraulic systems of aircraft and aircraft production. | |||
Topic 1.2. Basics of hydrostatics | The main tasks of hydrostatics. Forces acting in a fluid at equilibrium. The concept of hydrostatic pressure. SI units of hydrostatic pressure. Basic properties of hydrostatic pressure. Pascal's law. Basic equation of hydrostatics. The concept of absolute, excess and vacuum pressure. Instruments for measuring pressure. Hydrostatic machines (hydraulic press and accumulator). Purpose, scope, device and principle of operation. | ||
Independent work: Work with literature for self-study and compilation of notes on instruments for measuring pressure of media and hydrostatic machines(hydraulic press and accumulator). Purpose, scope, device and principle of operation. | |||
Topic 1.3. Fundamentals of hydrodynamics | Problems of hydrodynamics. Types of fluid movement. Fluid flow. Hydraulic elements flow: live cross-sectional area of the flow, wetted perimeter, hydraulic radius, volumetric and weight flow of liquid, average speed flow movements. Continuity equation for fluid flow. Energy of an elementary stream. Bernoulli's equation. Geometric and physical meaning Bernoulli equations for an ideal fluid. Full pressure and its components. Construction of piezometric and pressure lines. Examples of application of the Bernoulli equation in technology. Measurement of flow rate and liquid consumption. Modes of fluid movement: laminar and turbulent. Pressure loss due to friction during laminar and turbulent motion. Darcy–Weisbach formula. Roughness. Channel zones. Darcy coefficient. Local resistance. Local resistance coefficient. Concepts of simple and complex pipeline. Hydraulic calculation of a simple pipeline. Three main tasks when calculating a simple pipeline, determining pressure, flow and diameter | ||
Topic 1.4. Laws of ideal gases, laws of thermodynamics | Laboratory works No. 2, 3. | ||
Pressure and flow measurement. Determination of the fluid movement mode. |
|||
Determination of head loss along length. |
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Independent work: Work with literature for self-study and compilation of notes on examples and applications of the hydrodynamic equation in technology. Problem solving: calculation of the Reynolds number, fluid speed and flow rate, pressure loss in the hydraulic system, calculation of a simple pipeline. Working media of pneumatic drives, their properties. Air composition. Perfect and real gases. Gas state parameters: pressure, specific gravity, thermodynamic temperature. The concept of enthalpy and entropy of gas. Equation of state ideal gas(Clapeyron-Mendeleev). Avogadro's law. Ideal gas laws (Gay-Lussac, Charles and Boyle-Mariotte law). Definition and problems of thermodynamics. The first and second laws of thermodynamics. | |||
Independent work: Working with literature. Problem solving. | |||
Section 2. Hydraulic and pneumatic actuators. | |||
Topic 2.1. Structure and constituent elements hydraulic drive. Topic 2.2. General information about hydraulic machines | Principle of operation hydraulic drive. The main elements of volumetric hydraulic drives, their purpose. Requirements for hydraulic drives, their classification, advantages and disadvantages. Scope of application of hydraulic drive. Conventional graphic designations of elements of hydraulic and pneumatic circuits of product drives in accordance with GOST. | ||
Independent work: Work with literature for independent study and compilation of notes “Scope of application of hydraulic and pneumatic drives.” Extract from GOST the conventional graphic symbols of hydraulic and pneumatic elements on product wiring diagrams. Classification of hydraulic machines. Definitions of pumps and hydraulic motors. Classification of pumps. Purpose and scope of application of the main types of pumps and hydraulic motors. Feed, pressure, speed at which the pump operates, shaft torque, power consumption, coefficient useful action. Gear pumps. Vane pumps. Device, principle of operation. Advantages and disadvantages. Vane pumps. Device, principle of operation. Advantages and disadvantages. Requirements for pumps. Scheme and principle of operation piston pump. Design, principle of operation of radial piston and axial piston pumps. Application area. Hydraulic cylinders. |
Laboratory work: No. 4, 5, 6. | |||
Determination of the operating characteristics of a gear pump. | |||
Determination of hydraulic motor characteristics. |
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Research on the characteristics of a volumetric hydraulic drive with forward movement output link. Independent work: Working with literature. Compilation of notes on the operation of hydraulic machines. Problem solving. |
|||
Topic 2.3. Hydraulic drive equipment | Purpose of hydraulic devices. Designs of shut-off and control elements. Equipment for regulation and control of pressure. Crane and spool valves, their types, principle of operation, connection to the hydraulic system. Equipment for regulating the flow of working fluid. | ||
Laboratory work: No. 7, 8. | |||
Study of the characteristics of a pressure hydraulic valve. | |||
Study of the characteristics of the pressure reducing valve. | |||
Independent work: | |||
Work with literature for self-study and compilation of brief notes on the operation of throttling valves, their purpose and principle of operation. | |||
Topic 2.4. Adjusting the speed of movement of working bodies | Methods of hydraulic control of the speed of working bodies. Essence, advantages and disadvantages of volumetric control schemes. The essence, circuits, advantages and disadvantages of throttle control. Independent work: Working with literature. Write down the disadvantages of regulatory schemes. | ||
Topic 2.5. Auxiliary elements of hydraulic drives | Pipelines, their connections and installation. Oil purification devices. Types of filters, their design, principle of operation. Methods for connecting filters to a hydraulic system. Hydraulic tanks. Heat exchangers. | ||
Independent work: | |||
Working with literature. Sealing devices. Calculation and justification for the choice of hydraulic tanks and heat exchangers. | |||
Topic 2.6. Structure and components of the pneumatic drive. | Design and principle of operation of a piston compressor. Theoretical and actual compression process in a compressor. Advantages and disadvantages of a piston compressor Scheme for obtaining compressed air. Main and auxiliary equipment of a piston compressor station. | ||
Independent work: | |||
Study of the operation of a piston compressor using an indicator diagram. | |||
Topic 2.7. Schematic diagrams of pneumatic drives. | Purpose and scope of pneumatic actuators. Basic elements of pneumatic drives and their functional purpose. Advantages and disadvantages of pneumatic drives. | ||
Independent work: | |||
Examples of the use of pneumatic drives in aircraft design and in aircraft production. | |||
Topic 2.8. Tracking drives | Purpose and application of the servo drive. Schemes of the servo drive of technological equipment. | ||
Independent work: | |||
Study of the operation of the hydraulic drive of the aircraft stabilizer. | |||
Topic 2.9. Fundamentals of calculation of hydraulic and pneumatic systems. | Basics of hydraulic drive calculation: determination of pump parameters, pipeline diameters, pressure losses in the hydraulic system. The concept of thermal calculation of a pneumatic system. | ||
Assessment of the quality of training in the discipline “Hydraulic and Pneumatic Systems” is carried out in accordance with the State Educational Standard, which sets the following qualitative levels of mastering the content of training in academic disciplines in the following concepts:
- level - “to have an idea, to understand” as the ability to identify an object of study, give its qualitative description, and formulate its characteristic properties; (competence not developed)
- level - “know”, as the ability to reproduce the studied material with the required degree of scientific knowledge; (competence not developed enough)
3. level - “be able” as the ability to use acquired knowledge in the field of professional activity with possible use reference literature; (competence is sufficiently developed)
3. CONDITIONS FOR IMPLEMENTATION OF THE DISCIPLINE WORK PROGRAM
3.1. Requirements for minimum logistics
The implementation of the discipline requires the presence of a classroom “Hydraulic and Pneumatic Systems”, equipped with equipment, using multimedia and interactive teaching aids.
To consolidate theoretical knowledge, acquire practical skills and abilities, the work program of the discipline “Hydraulic and Pneumatic Systems” provides for laboratory work oriented towards basic enterprises. Students consolidate their acquired knowledge in the discipline during field trips on the subject of the discipline to assembly, testing shops, departments, and laboratories. Field trips are conducted during parallel organized practical training.
In addition, during this period, students directly work at specific workplaces, production sites, technological bureaus and departments and participate in the production of real products.
Thus, the discipline “Hydraulic and Pneumatic Systems” is implemented through calendar-thematic and lesson planning of the content of the material, the forms and methods of organizing classes used.
Classroom equipment:
Seating according to the number of students;
Teacher's workplace;
Laboratory equipment:
- stands: STC-17 “Hydraulics”, STC-36 “Hydraulic machines and hydraulic drives”, STC-37 “Hydraulic devices”, installations of the “Kapelka” laboratory, hydraulic fluids, viscometers, hydrometer.
Technical training aids:
Computer with licensed software and multimedia projector;
Electronic resources;
Overhead projector (folios in the discipline “Hydraulic and Pneumatic Systems”).
3.2. Information Support training
Educational and methodological literature on the discipline “Hydraulic and pneumatic systems” includes: textbooks, teaching aids, electronic textbooks, reference books, problem books, encyclopedias that are used in the educational process, methodological manuals on conducting business games, teaching aids for developing lectures, lesson notes, reference notes for students, workbook, guidelines for carrying out laboratory work, methodological developments lessons, journal reports on laboratory work.
In addition, in the educational process important acquires a targeted selection, systematization and use of various types of production documentation, so when studying the special discipline “Hydraulic and Pneumatic Systems”, technical, technological, and regulatory literature is used.
I Basic literature
1. Bryukhanov O.N. Fundamentals of hydraulics and heat engineering: a textbook for students. avg. prof. education / O.N.Bryukhanov, A.T.Melik-Arakelyan, V.I.Korobko - 3rd ed., erased. - M.: Publishing center "Academy", 2008-240с
2. Bryukhanov O.N. Fundamentals of hydraulics, heat engineering and aerodynamics.: Textbook for SPO. - M.: INFRA - M, 2008-254s.
3. Verigin I.S. Compressor and pumping units: textbook for beginners. prof. education / I.V.Verigin - M.: Publishing Center "Academy", 2007-288p.
4. Hydraulics, hydraulic machines and hydraulic pneumatic drive: textbook. manual for students of higher educational institutions / [T.V. Artemyeva, T.M. Lysenko, A.N. Rumyantseva, S.P. Stesin] ; edited by S.P. Stesina. – 4th ed., erased. - M.: Publishing center "Academy", 2008-336p.
5. Isaev Yu.M. Hydraulics and hydraulic-pneumatic drive: a textbook for students. institutions vocational education / Yu.M.Isaev, V.P.Korenev. – M.: Publishing Center “Academy”, 2009-176p.
6. Lepeshkin A.V. Hydraulic and Pneumatic Systems: A Primer for Media. vocational education / A.V. Lepeshkin, A.A. Mikhailin; Ed. Yu.A. Belenkova. – M.: Publishing Center “Academy”, 2004. - 336 p.
7. Nikitin O.F., Kholin K.M. Volumetric hydraulic and pneumatic drives. Textbook for technical schools. – M.: Mechanical Engineering, 1981-269p.
8. Stolbov L.S. and others. Fundamentals of hydraulics and hydraulic drive of machine tools: Textbook for technical schools on specialization. "Metalworking machines and automated lines", "Production of control and measuring instruments and instruments", "Metal cutting", "Tool production" / L.S. Stolbov, A.D. Perova, O.V. Lozhkin. - M.: Mechanical Engineering, 1988.- 256s.
9. Kholin K.M., Nikitin O.F. Fundamentals of hydraulics and volumetric hydraulic drives: A textbook for students of secondary specialized educational institutions. - 2nd ed., revised and supplemented. - M.: Mechanical Engineering, 1989. - 264 p.
10. Sheypak A.A. Hydraulics and hydraulic pneumatic drive: Textbook. Part 1: Fundamentals of fluid and gas mechanics; 6th ed., stereotype. – M.: MGIU, 2007.- 264 p.
II EBS IPR books
III further reading
- Kuznetsov V.G. Machine drives with program controlled: Textbook. manual.- M.: Mechanical Engineering, 1983 – 302 p.
- Hydraulic and pneumatic systems: Guidelines. – Kazan, 2014.
Electronic editions:
- Remote access resources (Internet resources):
Single window of access to educational resources: portal [Electronic resource]. - Access mode:http://window/ edu.ru. Access date: 12/26/2012.
Control and evaluation
Learning outcomes (mastered skills, acquired knowledge) | Basic indicators Result ratings | Forms and methods control and evaluation learning outcomes |
SKILLS | ||
Compose simple fundamental hydraulic and pneumatic systems | - demonstration of recognition accuracy symbols hydraulic and pneumatic elements on circuit diagrams, according to GOST 2.781-96; Demonstration of the accuracy of drawing up a hydraulic and pneumatic circuit using elements of hydraulic and pneumatic systems; Clear and concise explanation functional purpose elements of hydraulic and pneumatic systems A clear and concise explanation of the movement pattern of the working fluid in hydraulic and pneumatic systems; Successful explanation block diagram energy conversion in hydraulic and pneumatic systems; Demonstration of techniques for setting up, adjusting and characterizing elements of hydraulic and pneumatic systems. | Laboratory works No. 2, 5, 6, 7, 8 Differential credit. |
Perform calculations by definition main parameters of hydraulic and pneumatic drives | Successful determination of the main parameters of hydraulic and pneumatic systems; Justification for the choice of formulas for calculating the main parameters; Calculation and measurement of basic parameters. | Laboratory work No. 2, 3, 4, 5, 6 Differential credit. |
KNOWLEDGE | ||
Physical basis of the functioning of hydraulic and pneumatic systems | Clear and summary about the purpose and basic mechanical and physical properties working fluids and oils; Accurate assessment of the characteristics of working fluids and oils for compliance with the requirements of technical documentation; A clear and concise presentation of the basic concepts and laws of hydrostatics and hydrodynamics; Successful justification of the sequence of actions when determining energy losses in hydraulic and pneumatic systems. A clear and precise presentation of the structural diagram of energy conversion in hydraulic and pneumatic systems; Reasoned presentation of the functional purpose of elements of hydraulic and pneumatic systems. | Test tasks, oral questioning, problem solving, test work, independent work. Differential credit |
Devices and principles of operation of various types of hydraulic and pneumatic system drives. | A clear and precise explanation of the purpose and scope of application of hydraulic and pneumatic system devices; Successful understanding of the basic parameters of hydraulic and pneumatic devices; Clear and short description devices and operating principles of hydraulic and pneumatic devices; A clear and concise description of the advantages and disadvantages of hydraulic and pneumatic devices | Test tasks, oral questioning, independent work Differential credit |
Methodology for calculating the main parameters of different types of wires for hydraulic and pneumatic systems | Successful understanding of the purpose of the calculation; Successful understanding of the sequence of actions when calculating the main parameters of various types of drives of hydraulic and pneumatic systems; Search skills necessary information for selecting and calculating the main types of hydraulic and pneumatic equipment; | Test tasks, oral questioning, independent work. Differential credit |
COMPETENCIES | ||
OK1. Understand the essence and social significance of your future profession, show sustained interest in it. OK2 Organize your own activities, determine methods and means of performing professional tasks, evaluate their effectiveness and quality. OK 3. Make decisions in standard and non-standard situations and take responsibility for them. OK4. Search and use information necessary for the effective performance of professional tasks, professional and personal development. OK 5. Use information and communication technologies to improve professional activities. OK 6. Work in a team and team, communicate effectively with colleagues, management, and consumers. OK8. Independently determine the tasks of professional and personal development, engage in self-education, consciously plan advanced training; PC 1.1. Analyze the production facility: the design of the aircraft, assemblies, components, parts, systems, design documentation for their manufacture and installation. PC 2.1. Analyze the technical specifications to develop the design of simple parts and assemblies of the product and equipment. Link and base elements of products and equipment along the technological chain of their production and assembly. PC 2.2. Choose a design solution for the unit. PC 2.3. Perform the necessary standard calculations during design. PC 2.4. Develop a detailed design of parts and assemblies in accordance with the requirements of the Unified System of Design Documentation (ESKD). PC 3.2. Check the quality of products and/or work performed. | Understanding of subject knowledge in the future profession; participation in competitions in the discipline, scientific and practical conferences; High-quality completion of educational tasks. Timely completion of all stages of the educational process in lessons and laboratory work; in the process of updating, forming new knowledge and consolidating it. Assessing the correctness of the task formulation and its implementation in laboratory conditions. Effective search for necessary information; use of various sources, including electronic textbooks. Selection of the necessary information, including Internet resources, for solving problems in the classroom and preparing for the test. Demonstration of knowledge personal qualities colleagues for effective team work; use of professional vocabulary when interacting with colleagues, teachers, and management during training. Demonstration of knowledge of additional technical literature and journals in the specialty profile. Demonstration of knowledge of reading working drawings for the manufacture of aircraft parts, assemblies and systems; on reading drawings for equipment and assembly devices for the manufacture and installation of aircraft parts and assemblies. Demonstration of knowledge on the design of simple parts and assemblies of the product and its correlation with the mathematical model of the aircraft; on methods and methods of assembly in accordance with the requirements of the manufacturing drawings; to justify the linking and basing of product elements in the assembly fixture; on the selection of high-performance and economical equipment and tools. Demonstration of knowledge and analysis on the design of the unit, its purpose in the aircraft, manufacturing and installation methods, about advanced technology x and control. Demonstration of knowledge: on searching for source data and selecting formulas for calculations; selection information technologies and programs. Demonstration of knowledge of graphic representation of parts and assemblies to reveal the shape and sequence of connections of structural elements of parts and assemblies. Demonstration of knowledge of the requirements of technological and design documentation for the manufacture of manufactured products and methods of controlling their quality. | Assessing the content of the student’s portfolio; monitoring of work performance in educational practice. Conversation, observation, evaluation of laboratory work results; practices at the base enterprise. Analysis and observation of laboratory work with modeling of non-standard situations. Assessment and analysis of the operation of equipment used in laboratory work. Assessment of the content of theoretical knowledge during the defense of laboratory work, and during the educational program Assessing team defense of laboratory work. Assessing the content of reading and comprehension additional information on hydraulic and pneumatic systems. Evaluation of the results of laboratory work and their correlation to aviation production. Assessment of knowledge on the design and assembly of hydraulic and pneumatic systems. Assess knowledge of advanced assembly technologies. Evaluation of calculation results based on initial data. Assess on reading graphics and understanding of hydraulic and pneumatic systems. Assessment of the assembly quality of hydraulic and pneumatic systems. |
REVIEW
for the work program of the OP discipline. 07 “Hydraulics” for specialty 160706 “Production of aircraft engines” of secondary vocational education
(basic preparation of secondary vocational education)
Reviewer: I.B. Pototskaya, teacher of the highest category, Kazan Aviation Technical College named after. P.V. Dementieva."
The work program of the discipline “Hydraulics” is compiled in accordance with the requirements of the Federal State Educational Standard (FSES) for the level of training of graduates of specialty 160706 “Production of Aircraft Engines”.
The work program contains all the necessary sections: the passport of the academic discipline, the structure of the content of the discipline. Conditions for the implementation of the work program, monitoring and evaluation of the results of mastering the academic discipline.
The content of the program according to the curriculum of this discipline is designed for 72 hours, of which 48 theoretical lessons, 8 hours laboratory classes. Independent work is 24 hours. The topics of laboratory work were developed taking into account the requirements of the Federal State Educational Standard for the training of specialists in specialty 160706 and the laboratory equipment available at the college.
The final form of control in the discipline is a differentiated test.
The work program of the discipline “Hydraulics” was developed methodologically competently and can be applied in the educational process of the Kazan Aviation Technical College named after. P.V. Dementieva."
Reviewer I.B.Pototskaya
teacher of the highest category
GBOU SPO skating rink
REVIEW
for the work program of the OP discipline. 06 “Hydraulic and pneumatic systems” for specialty 160108 “Production of aircraft” of secondary vocational education
(basic training of secondary vocational education)
Reviewer: D.R. Volkov, head of the quality control department of JSC KAPO im. S.P.Gorbunova.
The work program of the discipline was compiled for specialty 160108 “Production of aircraft” based on the requirements of the Federal State Educational Standard (FSES) for the content of the discipline and the work plan of the Kazan Aviation Technical College.
The work program reflects the requirements of the third generation Federal State Educational Standard for Secondary Professional Education to the minimum content in the discipline and the level of knowledge and skills of students in this discipline, which is a necessary condition for the educational process.
The work program of the discipline “Hydraulic and Pneumatic Systems” includes a list of knowledge, skills, general and professional competencies on topics that allow the teacher to purposefully give material; each topic is accompanied by a description educational activities students in the form of independent and laboratory work. The final form of control in the discipline is a test.
Proposed working programm discipline "Hydraulic and pneumatic systems" Danilova V.P. It is compiled methodologically correctly and can be used in the educational process of KATC.
Reviewer D.R. Volkov
Department head
quality control
JSC KAPO im. S.P.Gorbunova
4. CONTROL AND EVALUATION OF THE RESULTS OF MASTERING THE DISCIPLINE
Controland evaluationthe results of mastering the discipline are carried out by the teacher in the process of conducting practical classes and laboratory work, testing, as well as students performing flexible practice-oriented current homework assignments linked to a specific workplace during practice;
Learning outcomes (mastered skills, acquired knowledge) | Forms and methods of monitoring and assessing learning outcomes |
1 | 2 |
Skills: | |
laboratory work No. 2, 3, 4 |
|
-calculate the main parameters of hydraulic and pneumatic actuators | laboratory work No. 2, 3 |
-use regulatory documents, reference literature and other information sources when selecting and calculating the main types of hydraulic and pneumatic equipment | laboratory work No. 3.4 |
Knowledge: | |
-physical basis of the functioning of hydraulic and pneumatic systems | test, homework |
- systems structure automatic control on hydraulic and pneumatic element base |
|
- design and principle of operation of hydraulic and pneumatic devices and apparatus | test tasks, oral questioning, homework |
Traditionally, the following types of control over the progress and quality of theoretical training in the discipline “Hydraulic and Pneumatic Systems” are used:
-input control - carried out one-time at the beginning of reading the discipline in order to check basic knowledge in the previous disciplines “Aircraft Design”, “Materials Science”, “Engineering Graphics”, “Aerodynamics”;
- current control - carried out systematically, at each lesson, in order to establish the correct understanding of the educational material by students and the levels of mastery of it;
- midterm control – is carried out to check the level of mastery of educational material after studying each section, and to confirm the results of current assessments received by students previously;
- final control – is carried out at the end of studying the discipline “Hydraulic and Pneumatic Systems” and determines the achieved level of students’ assimilation of the basic educational material in the discipline as a whole, the quality of the basic knowledge, abilities, skills, and professional competencies they have formed.
Control tools for the discipline “Hydraulic and Pneumatic Systems” are presented in the following forms: on paper and electronic media ( Control questions, tests, tests, crosswords, exam papers etc.) and technical means control (computer control programs).
Control questions are used for all types of control: input, current, milestone, final. Of particular value are questions of a productive nature, including explanations, justifications and solutions to practical problems on hydraulic and pneumatic systems that require active thinking of students.
Tests are also used for all of the above types of control in the discipline “Hydraulic and Pneumatic Systems”; they are divided into: first level tests (selective): identification tests, discrimination tests, correlation tests; second level tests: scaffold tests, constructive tests, process tests; third level tests: task tests, process tests (application).
