This document provides information on various types of actuators, including solenoids, valves, cylinders, hydraulics, pneumatics, and motors. It describes how solenoids, solenoid valves, cylinders, and motors function. Hydraulic and pneumatic systems are compared, with pneumatics providing smaller forces at higher speeds but being less stiff, while hydraulics provides large forces but at lower speeds. Symbols for components like valves and cylinders are shown. The document also discusses considerations for selecting valves and provides examples of pneumatic and hydraulic circuits.
A shuttle valve is a type of valve which allows fluid to flow through it from one of two sources. Generally a shuttle valve is used in pneumatic systems, although sometimes it will be found in hydraulic systems.
This project report discusses the air brake system used in BOXNHL wagons in the Mechanical Workshop Railway in Samastipur, India. It provides an introduction to the workshop and describes the major components of wagons. The report then explains the basic operation of the air brake system, including the key parts like the brake pipe, auxiliary reservoir, and distributor valve. It outlines the process of how the air brake system charges, applies the brakes, and releases the brakes in trains. Diagrams are included to illustrate the layout and working of the twin pipe air brake system.
This document discusses hydraulic pumps used in industry. It begins by listing learning objectives related to classifying pumps, explaining their workings, and evaluating performance. It then defines the functions of pumps in converting mechanical to hydraulic energy. Pumps are classified as positive displacement or non-positive displacement, based on constant/variable delivery, and rotary/reciprocating motion. Key differences between these types are outlined. Specific pump types like gear, vane and piston are described in more detail regarding their construction, advantages, and uses.
This document discusses the basics of pneumatic control valves. It describes the configurations of common directional control valves including:
- Two-way, two-position valves which provide an on-off function to control airflow.
- Three-way, two-position valves which direct pressurized air to control single-acting cylinders or pilot other valves.
- Four-way, two-position valves which have two flow paths to actuate and reverse cylinders or other pneumatic actuators.
The document provides an overview of basic hydraulic principles and components. It explains that hydraulics involves using pressurized liquids to transmit power and describes the three main sections of a hydraulic system: the drive section which includes cylinders and motors, the energy control section with valves, and the power supply section with pumps, reservoirs and other components. It then discusses key hydraulic concepts like Pascal's principle and displacement transmission. Finally, it outlines different types of hydraulic pumps including gear, vane and screw pumps as well as filters, coolers and other components.
The document discusses objectives related to hydraulic valves. It covers the functions of different types of valves including pressure, directional, and volume/flow control valves. Some key points include that pressure control valves are used to limit, reduce, or set system pressures. Relief valves come in direct acting and pilot operated types. Pressure reducing valves include constant reduced and fixed amount types. Directional control valves include check valves, rotary valves, poppet valves, electro-hydraulic valves, and spool valves. Valves can be actuated mechanically, with pilots, or electrically.
hydraulic devices Important project report 1shubham shelar
The document describes different types of hydraulic pumps used in hydraulic systems, including gear pumps, vane pumps, lobe pumps, screw pumps, and piston pumps. It focuses on describing the external gear pump in detail. An external gear pump uses two meshing gears to pump fluid, with one gear driving the other. As the gears come out of mesh, they create space for fluid to enter, and as they mesh again they push the fluid out under pressure. External gear pumps are suitable for high pressure applications and can accommodate a wide range of fluid types and operating conditions.
Directional control valves (DCVs) direct hydraulic fluid flow and are categorized by the number of ports and positions of the internal spool. Common types include 2-way 2-position and 4-way 3-position valves. DCVs are usually actuated electrically via solenoids or hydraulically. Check valves allow fluid flow in one direction only and are used to hold pressure or for safety. Pilot-operated check valves are remotely controlled by a directional valve via a pilot pressure line.
A shuttle valve is a type of valve which allows fluid to flow through it from one of two sources. Generally a shuttle valve is used in pneumatic systems, although sometimes it will be found in hydraulic systems.
This project report discusses the air brake system used in BOXNHL wagons in the Mechanical Workshop Railway in Samastipur, India. It provides an introduction to the workshop and describes the major components of wagons. The report then explains the basic operation of the air brake system, including the key parts like the brake pipe, auxiliary reservoir, and distributor valve. It outlines the process of how the air brake system charges, applies the brakes, and releases the brakes in trains. Diagrams are included to illustrate the layout and working of the twin pipe air brake system.
This document discusses hydraulic pumps used in industry. It begins by listing learning objectives related to classifying pumps, explaining their workings, and evaluating performance. It then defines the functions of pumps in converting mechanical to hydraulic energy. Pumps are classified as positive displacement or non-positive displacement, based on constant/variable delivery, and rotary/reciprocating motion. Key differences between these types are outlined. Specific pump types like gear, vane and piston are described in more detail regarding their construction, advantages, and uses.
This document discusses the basics of pneumatic control valves. It describes the configurations of common directional control valves including:
- Two-way, two-position valves which provide an on-off function to control airflow.
- Three-way, two-position valves which direct pressurized air to control single-acting cylinders or pilot other valves.
- Four-way, two-position valves which have two flow paths to actuate and reverse cylinders or other pneumatic actuators.
The document provides an overview of basic hydraulic principles and components. It explains that hydraulics involves using pressurized liquids to transmit power and describes the three main sections of a hydraulic system: the drive section which includes cylinders and motors, the energy control section with valves, and the power supply section with pumps, reservoirs and other components. It then discusses key hydraulic concepts like Pascal's principle and displacement transmission. Finally, it outlines different types of hydraulic pumps including gear, vane and screw pumps as well as filters, coolers and other components.
The document discusses objectives related to hydraulic valves. It covers the functions of different types of valves including pressure, directional, and volume/flow control valves. Some key points include that pressure control valves are used to limit, reduce, or set system pressures. Relief valves come in direct acting and pilot operated types. Pressure reducing valves include constant reduced and fixed amount types. Directional control valves include check valves, rotary valves, poppet valves, electro-hydraulic valves, and spool valves. Valves can be actuated mechanically, with pilots, or electrically.
hydraulic devices Important project report 1shubham shelar
The document describes different types of hydraulic pumps used in hydraulic systems, including gear pumps, vane pumps, lobe pumps, screw pumps, and piston pumps. It focuses on describing the external gear pump in detail. An external gear pump uses two meshing gears to pump fluid, with one gear driving the other. As the gears come out of mesh, they create space for fluid to enter, and as they mesh again they push the fluid out under pressure. External gear pumps are suitable for high pressure applications and can accommodate a wide range of fluid types and operating conditions.
Directional control valves (DCVs) direct hydraulic fluid flow and are categorized by the number of ports and positions of the internal spool. Common types include 2-way 2-position and 4-way 3-position valves. DCVs are usually actuated electrically via solenoids or hydraulically. Check valves allow fluid flow in one direction only and are used to hold pressure or for safety. Pilot-operated check valves are remotely controlled by a directional valve via a pilot pressure line.
It is a system where liquid under pressure is used to transmit this energy. Hydraulics systems take engine power and converts it to hydraulic power by means of a hydraulic pump. This power can be distributed throughout the airplane by means of tubing that runs through the aircraft. Hydraulic power may be reconverted to mechanical power by means of an actuating cylinder, or turbine.
This lesson discusses hydraulic reservoirs, filters, pumps, accumulators, and motors. Reservoirs store hydraulic fluid and minimize contamination. Filters remove contaminants from the fluid. Pumps convert mechanical energy to hydraulic energy and are either hand-operated or powered. Common powered pumps are constant delivery piston pumps and variable delivery piston or vane pumps. Accumulators store hydraulic energy as compressed gas. Motors convert hydraulic pressure to mechanical rotation.
Pneumatics: Shuttle, Twin pressure, Quick Exhaust, Time Delay, FRLAbhishek Patange
The document discusses various components used in pneumatic systems including logic gates, valves, and FRL units. It begins with explanations of shuttle valves and twin pressure/dual pressure valves that can function as OR and AND logic gates respectively. Various valves are then discussed such as time delay valves, quick exhaust valves, and their applications. Speed control methods and the stick-slip effect in pneumatics are also covered. Finally, the construction and working of the main components of an FRL (filter, regulator, lubricator) unit are explained in detail with diagrams.
This document provides an overview of hydraulic systems used in aircraft. It describes how hydraulic systems use incompressible liquids and pumps to transmit energy and power various aircraft components. It then lists some common uses of hydraulic systems in aircraft, such as for gun turrets, auto pilots, shock absorption, brakes, doors and landing gear. The document proceeds to explain the basic principles and components of hydraulic systems, including reservoirs, accumulators, filters, pumps, valves and actuating cylinders.
Servo valves and proportional valves are types of directional control valves that can precisely control the amount and direction of fluid flow to actuators. Mechanical servo valves use a mechanical linkage to position a valve spool, while electro-hydraulic servo valves use an electric current. Proportional valves can assume intermediate positions between fully open and closed through variation of an electric current controlling a solenoid. Cartridge valves offer design flexibility and performance advantages over conventional sliding spool valves by providing directional flow and pressure control through poppet-style inserts.
A basic hydraulic circuit consists of a power supply, pump, reservoir, relief valve and control valve. Common control valves include mechanically or solenoid operated valves, open or closed center valves. Common pumps include gear, piston, vane, and tandem pumps. Additional components are flow control valves, selector valves, flow dividers, check valves, and relief valves. Proper interaction of these components allows for control of hydraulic cylinders, motors, and remote fluid distribution.
Control of a single-acting and double-acting cylinder, regeneration, motor braking, speed control, synchronisation, fail safe, two handed, application of counterbalance, sequence, unloading, pressure reducing, pilot operated check valve
This document provides an overview of basic hydraulic circuits. It describes how hydraulic systems are divided into a signal control section and a hydraulic power section. The power section includes a pump, valves to control fluid flow and pressure, and hydraulic cylinders or motors. Simple circuits are shown including a pump, directional control valve, cylinder, and pressure relief valve. The interactions of these components in a basic circuit are illustrated through animations. Additional diagrams demonstrate uses of filters, contamination indicators, and pressure relief valves, including how a brake valve is used to prevent pressure spikes when a directional control valve closes suddenly.
The document describes the key components of a hydraulic circuit: 1) a hydraulic pump that pumps oil from the reservoir and has a fixed or variable displacement, 2) a filter that cleans the oil, 3) a pressure relief valve that controls pressure, 4) a check valve that allows one-way flow, 5) a hydraulic reservoir that stores fluid, 6) a directional control valve that controls fluid flow, and 7) a hydraulic cylinder that converts hydraulic power into mechanical force. It also briefly mentions types of hydraulic circuits.
The document discusses instrumentation tools and provides 10 multiple choice questions about hydraulic systems. It introduces instrumentationtools.com which covers topics in industrial instrumentation, PLCs, DCS, SCADA, field instruments, and analyzers. The 10 questions ask about hydraulic power systems, Pascal's principle, types of motion supported by pneumatic systems, single-acting cylinders, check valves, series circuits, 5/2 way valves, how single-acting cylinders convert energy, throttle valves, and the resting position of single-acting cylinder pistons.
The document discusses the operation of a single-action front spring cylinder with a 3/2 button spring normally closed directional control valve. It explains that the cylinder uses compressed air to move the piston in one direction during the forward stroke, and a spring to return it during the backward stroke. It also describes how the 3/2 valve controls the flow of compressed air to the cylinder, opening when the button is pressed and closing when released due to the spring.
This document provides information on industrial hydraulic circuits. It describes the basic components and functions of hydraulic systems including:
- Hydraulic systems have a signal control section that activates valves in the hydraulic power section.
- The power section includes a pump, hydraulic fluid reservoir, and valves to control fluid flow and pressure to hydraulic motors or cylinders.
- Simple circuits are demonstrated including how components like valves and cylinders interact through animation.
- Different filter locations are discussed along with how contamination indicators work.
- Pressure relief valves are explained as protecting circuits from over-pressure by diverting fluid to the reservoir once a set pressure is reached.
- Brake valves are described as preventing pressure spikes when directional valves close suddenly.
Hydraulic Circuit Design and Analysis , dr.samir elshamyDr.Samir el-shamy
The document discusses two hydraulic circuit designs. The first uses an unloading valve to unload a pump when a cylinder reaches the end of its extension or retraction strokes. The unloading valve opens to unload the pump and resets when the cylinder changes direction. The second circuit uses two pumps, a high-pressure, low-flow pump and a low-pressure, high-flow pump, to meet the varying pressure and flow demands of a punch press that requires rapid extension at low pressure but high pressure during short punching movements.
The document outlines objectives for understanding fundamental hydraulic principles, reading hydraulic diagrams, and operating hydraulic systems safely and reliably. It discusses advantages like automatic lubrication and precise motion control. It explains Pascal's law of fluid pressure transmission and fundamental principles like flow determining speed. It provides an overview of key hydraulic components like reservoirs, filters, pumps, valves, actuators and their functions. It also covers important concepts like cleanliness levels, contamination sources, and best practices for fluid handling and storage to prevent system contamination.
Electro hydraulic system Components and their operationSrichandan Subudhi
After this presentation you will be knowing:
1.What are DCVs, its type and their uses
2.About Check Valves and pilot controlled check valves
3.What are solenoid actuated valves and their operation
4.What are proportional solenoid valves and their operation
5.Servo Valve Operation
6.Servo Valve Connector
Hydraulic valves control the direction and flow of hydraulic fluid in a circuit. There are three main types: directional control valves, which control the direction of fluid flow; flow control valves, which regulate fluid flow; and pressure control valves, which control pressure in different parts of the circuit. Directional control valves specifically are used to direct fluid to outlet ports and can be classified by their internal element, number of ports, positions, actuation method, and center position flow pattern. Common types include check valves, pilot-operated check valves, and multi-port directional valves.
The document provides an overview of hydraulics actuation systems used in heavy machinery. It discusses how fluid power works through Pascal's law and hydraulic leverage to amplify force. Key components of hydraulic systems are described, including reservoirs, filters, pumps, motors, accumulators, cylinders, and control valves. Common applications like earthmoving equipment, presses, and rollercoasters are highlighted. Diagrams illustrate the configuration and flow of components in hydraulic circuits.
The document discusses different types of hydraulic valves, including directional control valves, pressure control valves, and flow control valves. It describes directional control valves in detail, explaining that they control the direction of hydraulic fluid flow and actuator motion. Common types of directional control valves are then outlined, including 2/2 way on/off valves, 3/2 way valves, and 4/3 way valves. The valves' purposes and schematic symbols are explained. Infinite position valves that regulate fluid flow are also introduced.
A solenoid valve is a combination of two basic functional units:
• A solenoid (electromagnet) with its core
• A valve body containing one or more orifices
Flow through an orifice is shut off or allowed by the movement of the core when the solenoid is energized or de-energized. ASCO valves have a solenoid mounted directly on the valve body. The core is enclosed in a sealed tube, providing a compact, leak-tight assembly.
Babic components of hydraulic & pneumatic systemswakurets_21
The document discusses the basic components and applications of hydraulic and pneumatic systems. It describes the main types of hydraulic and pneumatic actuators including linear actuators like cylinders, and rotary actuators like motors. It also explains the different types of valves used in hydraulic and pneumatic circuits including directional control valves, flow control valves, and pressure control valves. The purpose and basic operation of common valve types are provided like poppet valves, spool valves, needle valves, check valves, and relief valves.
Social Media for Magazines - AEJMC 2011Cindy Royal
The document discusses strategies for magazines to use social media effectively. It recommends developing a social media strategy and using key platforms like Facebook, Twitter, and LinkedIn to promote content, interact with readers, and build connections and communities around the brand. Goals include engaging readers online as print circulation declines. Monetization may come from various sources like paid content, sponsorships, and apps.
Social Media in the Classroom - PoliticalCindy Royal
The document discusses using social media in the classroom to engage students. It suggests setting up social media accounts like blogs, Twitter, Facebook, and YouTube for class discussions and assignments. Students could find and share relevant videos on YouTube or write blog posts discussing course topics. A social media course is described where students develop their personal brand through a blog and multimedia projects, and learn how organizations use social media. The goal is for students to gain skills in online networking and self-promotion.
It is a system where liquid under pressure is used to transmit this energy. Hydraulics systems take engine power and converts it to hydraulic power by means of a hydraulic pump. This power can be distributed throughout the airplane by means of tubing that runs through the aircraft. Hydraulic power may be reconverted to mechanical power by means of an actuating cylinder, or turbine.
This lesson discusses hydraulic reservoirs, filters, pumps, accumulators, and motors. Reservoirs store hydraulic fluid and minimize contamination. Filters remove contaminants from the fluid. Pumps convert mechanical energy to hydraulic energy and are either hand-operated or powered. Common powered pumps are constant delivery piston pumps and variable delivery piston or vane pumps. Accumulators store hydraulic energy as compressed gas. Motors convert hydraulic pressure to mechanical rotation.
Pneumatics: Shuttle, Twin pressure, Quick Exhaust, Time Delay, FRLAbhishek Patange
The document discusses various components used in pneumatic systems including logic gates, valves, and FRL units. It begins with explanations of shuttle valves and twin pressure/dual pressure valves that can function as OR and AND logic gates respectively. Various valves are then discussed such as time delay valves, quick exhaust valves, and their applications. Speed control methods and the stick-slip effect in pneumatics are also covered. Finally, the construction and working of the main components of an FRL (filter, regulator, lubricator) unit are explained in detail with diagrams.
This document provides an overview of hydraulic systems used in aircraft. It describes how hydraulic systems use incompressible liquids and pumps to transmit energy and power various aircraft components. It then lists some common uses of hydraulic systems in aircraft, such as for gun turrets, auto pilots, shock absorption, brakes, doors and landing gear. The document proceeds to explain the basic principles and components of hydraulic systems, including reservoirs, accumulators, filters, pumps, valves and actuating cylinders.
Servo valves and proportional valves are types of directional control valves that can precisely control the amount and direction of fluid flow to actuators. Mechanical servo valves use a mechanical linkage to position a valve spool, while electro-hydraulic servo valves use an electric current. Proportional valves can assume intermediate positions between fully open and closed through variation of an electric current controlling a solenoid. Cartridge valves offer design flexibility and performance advantages over conventional sliding spool valves by providing directional flow and pressure control through poppet-style inserts.
A basic hydraulic circuit consists of a power supply, pump, reservoir, relief valve and control valve. Common control valves include mechanically or solenoid operated valves, open or closed center valves. Common pumps include gear, piston, vane, and tandem pumps. Additional components are flow control valves, selector valves, flow dividers, check valves, and relief valves. Proper interaction of these components allows for control of hydraulic cylinders, motors, and remote fluid distribution.
Control of a single-acting and double-acting cylinder, regeneration, motor braking, speed control, synchronisation, fail safe, two handed, application of counterbalance, sequence, unloading, pressure reducing, pilot operated check valve
This document provides an overview of basic hydraulic circuits. It describes how hydraulic systems are divided into a signal control section and a hydraulic power section. The power section includes a pump, valves to control fluid flow and pressure, and hydraulic cylinders or motors. Simple circuits are shown including a pump, directional control valve, cylinder, and pressure relief valve. The interactions of these components in a basic circuit are illustrated through animations. Additional diagrams demonstrate uses of filters, contamination indicators, and pressure relief valves, including how a brake valve is used to prevent pressure spikes when a directional control valve closes suddenly.
The document describes the key components of a hydraulic circuit: 1) a hydraulic pump that pumps oil from the reservoir and has a fixed or variable displacement, 2) a filter that cleans the oil, 3) a pressure relief valve that controls pressure, 4) a check valve that allows one-way flow, 5) a hydraulic reservoir that stores fluid, 6) a directional control valve that controls fluid flow, and 7) a hydraulic cylinder that converts hydraulic power into mechanical force. It also briefly mentions types of hydraulic circuits.
The document discusses instrumentation tools and provides 10 multiple choice questions about hydraulic systems. It introduces instrumentationtools.com which covers topics in industrial instrumentation, PLCs, DCS, SCADA, field instruments, and analyzers. The 10 questions ask about hydraulic power systems, Pascal's principle, types of motion supported by pneumatic systems, single-acting cylinders, check valves, series circuits, 5/2 way valves, how single-acting cylinders convert energy, throttle valves, and the resting position of single-acting cylinder pistons.
The document discusses the operation of a single-action front spring cylinder with a 3/2 button spring normally closed directional control valve. It explains that the cylinder uses compressed air to move the piston in one direction during the forward stroke, and a spring to return it during the backward stroke. It also describes how the 3/2 valve controls the flow of compressed air to the cylinder, opening when the button is pressed and closing when released due to the spring.
This document provides information on industrial hydraulic circuits. It describes the basic components and functions of hydraulic systems including:
- Hydraulic systems have a signal control section that activates valves in the hydraulic power section.
- The power section includes a pump, hydraulic fluid reservoir, and valves to control fluid flow and pressure to hydraulic motors or cylinders.
- Simple circuits are demonstrated including how components like valves and cylinders interact through animation.
- Different filter locations are discussed along with how contamination indicators work.
- Pressure relief valves are explained as protecting circuits from over-pressure by diverting fluid to the reservoir once a set pressure is reached.
- Brake valves are described as preventing pressure spikes when directional valves close suddenly.
Hydraulic Circuit Design and Analysis , dr.samir elshamyDr.Samir el-shamy
The document discusses two hydraulic circuit designs. The first uses an unloading valve to unload a pump when a cylinder reaches the end of its extension or retraction strokes. The unloading valve opens to unload the pump and resets when the cylinder changes direction. The second circuit uses two pumps, a high-pressure, low-flow pump and a low-pressure, high-flow pump, to meet the varying pressure and flow demands of a punch press that requires rapid extension at low pressure but high pressure during short punching movements.
The document outlines objectives for understanding fundamental hydraulic principles, reading hydraulic diagrams, and operating hydraulic systems safely and reliably. It discusses advantages like automatic lubrication and precise motion control. It explains Pascal's law of fluid pressure transmission and fundamental principles like flow determining speed. It provides an overview of key hydraulic components like reservoirs, filters, pumps, valves, actuators and their functions. It also covers important concepts like cleanliness levels, contamination sources, and best practices for fluid handling and storage to prevent system contamination.
Electro hydraulic system Components and their operationSrichandan Subudhi
After this presentation you will be knowing:
1.What are DCVs, its type and their uses
2.About Check Valves and pilot controlled check valves
3.What are solenoid actuated valves and their operation
4.What are proportional solenoid valves and their operation
5.Servo Valve Operation
6.Servo Valve Connector
Hydraulic valves control the direction and flow of hydraulic fluid in a circuit. There are three main types: directional control valves, which control the direction of fluid flow; flow control valves, which regulate fluid flow; and pressure control valves, which control pressure in different parts of the circuit. Directional control valves specifically are used to direct fluid to outlet ports and can be classified by their internal element, number of ports, positions, actuation method, and center position flow pattern. Common types include check valves, pilot-operated check valves, and multi-port directional valves.
The document provides an overview of hydraulics actuation systems used in heavy machinery. It discusses how fluid power works through Pascal's law and hydraulic leverage to amplify force. Key components of hydraulic systems are described, including reservoirs, filters, pumps, motors, accumulators, cylinders, and control valves. Common applications like earthmoving equipment, presses, and rollercoasters are highlighted. Diagrams illustrate the configuration and flow of components in hydraulic circuits.
The document discusses different types of hydraulic valves, including directional control valves, pressure control valves, and flow control valves. It describes directional control valves in detail, explaining that they control the direction of hydraulic fluid flow and actuator motion. Common types of directional control valves are then outlined, including 2/2 way on/off valves, 3/2 way valves, and 4/3 way valves. The valves' purposes and schematic symbols are explained. Infinite position valves that regulate fluid flow are also introduced.
A solenoid valve is a combination of two basic functional units:
• A solenoid (electromagnet) with its core
• A valve body containing one or more orifices
Flow through an orifice is shut off or allowed by the movement of the core when the solenoid is energized or de-energized. ASCO valves have a solenoid mounted directly on the valve body. The core is enclosed in a sealed tube, providing a compact, leak-tight assembly.
Babic components of hydraulic & pneumatic systemswakurets_21
The document discusses the basic components and applications of hydraulic and pneumatic systems. It describes the main types of hydraulic and pneumatic actuators including linear actuators like cylinders, and rotary actuators like motors. It also explains the different types of valves used in hydraulic and pneumatic circuits including directional control valves, flow control valves, and pressure control valves. The purpose and basic operation of common valve types are provided like poppet valves, spool valves, needle valves, check valves, and relief valves.
Social Media for Magazines - AEJMC 2011Cindy Royal
The document discusses strategies for magazines to use social media effectively. It recommends developing a social media strategy and using key platforms like Facebook, Twitter, and LinkedIn to promote content, interact with readers, and build connections and communities around the brand. Goals include engaging readers online as print circulation declines. Monetization may come from various sources like paid content, sponsorships, and apps.
Social Media in the Classroom - PoliticalCindy Royal
The document discusses using social media in the classroom to engage students. It suggests setting up social media accounts like blogs, Twitter, Facebook, and YouTube for class discussions and assignments. Students could find and share relevant videos on YouTube or write blog posts discussing course topics. A social media course is described where students develop their personal brand through a blog and multimedia projects, and learn how organizations use social media. The goal is for students to gain skills in online networking and self-promotion.
This document discusses using social media in the classroom and provides ideas and resources for doing so. It outlines how social media has evolved and can now be integrated into courses without advanced technical skills. A variety of free and low-cost online tools are presented that can be used to engage students, such as blogs, YouTube, RSS feeds, and social bookmarking. Equipment needs are modest, using tools students already have. Resources for staying current and honing skills are also provided.
Using Social Media in the Classroom - IU PresentationCindy Royal
This document discusses using social media in the classroom and provides an overview of various social media tools that can be used for educational purposes. It outlines how blogs, YouTube, Twitter, and other platforms can be leveraged to share content, stay up to date on news and trends, participate in discussions, and experiment with multimedia. A number of specific blogs and accounts are recommended as resources.
Social Media: Taking It to the Next LevelCindy Royal
This document discusses best practices for using social media in higher education. It recommends that universities maintain a strong website and blog while being authentic and transparent on social media. It encourages engagement with students and alumni through platforms like Facebook, Twitter and LinkedIn. The document also provides tips on developing social media strategies, guidelines, measuring effectiveness and integrating different social media platforms.
- The exam for the Fundamentals of Digital/Online Media course will take place on August 6th in class from 2-3pm. It will cover material from chapters 7-11 and presentations since the midterm.
- The exam consists of 50 multiple choice and true/false questions, with one short answer extra credit question. It will focus 75% on material covered since the midterm.
- To prepare, students should review all chapters and presentations, as well as videos, additional links, and news items discussed throughout the course. Familiarity with key concepts, people, events, and companies is important.
- Any outstanding questions about blog posts, which are due by midnight on August 7th,
- Workforce experiences throughout the employee journey, from hiring to departure, impact employee engagement levels which directly affect productivity and business performance.
- Traditional annual engagement surveys are ineffective at driving real change, whereas focusing on continuous workforce experiences can improve engagement.
- Fairsail is a cloud-based platform that helps companies design and manage great workforce experiences through features like mobile access, internal communications, recognition tools, and people analytics. This connects employees and improves engagement, productivity, and the overall employment brand.
This document provides information about common control valve components and types. It discusses how positioners have advanced to take input from sensors, alter control functions, modify valve movements, and interface with communication systems. It then focuses on the most widely used control valve types for industrial fluids: globe valves, rotary valves like ball valves and butterfly valves, and their characteristics. Key factors in valve sizing like system definition, allowable pressure drop, valve characteristic, preliminary selection, and minimum flow are also covered.
This document discusses control valves and their components. It provides details on common valve types including globe valves, ball valves, butterfly valves, and plug valves. It describes the basic components of each valve type as well as their typical applications, advantages, and disadvantages. It also discusses factors to consider when selecting and sizing a control valve for a given application.
This document discusses various hydraulic actuators and control components. It begins by describing different types of hydraulic cylinders including single acting, double acting, double rod, tandem, and telescopic cylinders. It then discusses cylinder cushioning and mounting. The document next covers various directional control valves including check valves, pilot operated check valves, 3/2 valves, 4/2 valves, and 4/3 valves. It provides details on the construction and operation of each. Finally, the document discusses flow control valves including pressure relief valves and compound pressure relief valves.
1. The document describes the design and testing of a test rig to evaluate the performance of vane pumps. It discusses the design of the test rig including components like the pump, motor, tanks, flow measurement devices, and piping.
2. An experimental procedure is described where the pump is operated at different pressures and flowrate, power, efficiency are calculated. Graphs are presented showing the relationships between discharge pressure and flowrate, efficiency, input power and output power.
3. The results show that flowrate decreases with increasing pressure while efficiency initially increases with pressure up to a point and then decreases. Input power increases linearly with pressure while output power also increases with pressure but not linearly.
This document discusses techniques for analyzing energy losses in pipeline systems that contain components like valves, fittings, and changes in pipe size. It begins by introducing the concept of minor losses, which are energy losses caused by components other than pipe friction. Methods are provided for calculating the energy loss associated with specific minor loss elements like sudden pipe enlargements using resistance coefficients. The document lists learning objectives and provides examples of calculating minor losses for water flowing through a pipe enlargement.
Hydraulics is a branch of science which deals with hydraulic fluid. It is used in places where cleanliness is not a priority but requires huge power to perform tasks.
application:
1. Industrial: Plastic processing machineries, steel making and primary metal extraction applications, automated production lines, machine tool industries, paper industries, loaders, crushes, textile machineries, R & D equipment and robotic systems etc.
2 Mobile hydraulics: Tractors, irrigation system, earthmoving equipment, material handling equipment, commercial vehicles, tunnel boring equipment, rail equipment, building and construction machineries and drilling rigs etc.
3 Automobiles: It is used in the systems like breaks, shock absorbers, steering system, wind shield, lift and cleaning etc.
4 Marine applications: It mostly covers ocean going vessels, fishing boats and navel equipment.
5 Aerospace equipment: There are equipment and systems used for rudder control, landing gear, breaks, flight control and transmission etc. which are used in airplanes, rockets and spaceships.
This document describes the workings of a three-axis pneumatic trailer used for unloading materials. It uses compressed air and pneumatic cylinders to unload the material. A compressor supplies compressed air to the pneumatic cylinders which use the air pressure to move downwards and unload the material. A controller then directs solenoid valves and pneumatic components like cylinders to control the air flow and automatic movement of unloading. Key equipment includes the compressor, pneumatic cylinders, solenoid valves, hoses, and a battery powering the controller.
A Review Paper on Pneumatic Operated Collapsable Steering SystemIRJET Journal
This document reviews a pneumatic operated collapsible steering system that aims to reduce injuries to drivers during frontal collisions. The system uses a limit switch that detects frontal impacts and activates a pneumatic cylinder via a directional control valve. This causes the steering column to collapse away from the driver within fractions of a second. The review describes the components of the system such as the limit switch, directional control valve, double acting cylinder, solenoid valve, and rack and pinion gear. It concludes that the pneumatic collapsible steering system provides a unique, easy to implement, and low-cost solution for preventing injuries during accidents.
This document provides information on centrifugal and reciprocating pumps. It discusses the working principles, components, usages, and efficiencies of each pump type. For centrifugal pumps, the document explains how the impeller uses centrifugal force to move fluid outward from the center. It also covers volumetric, manometric, and mechanical efficiencies. For reciprocating pumps, it describes the single-acting and double-acting designs and how the reciprocating piston moves fluid in and out of the cylinder in each case. Common applications of each pump type are also listed.
The document provides an overview of hydraulic cylinders, including their types, construction, operation, ratings, formulas for application, features, and installation/troubleshooting. It describes the main types of cylinders like ram, single acting, telescopic, spring return, and double acting cylinders. It covers cylinder construction details, actuation, mounting, ratings based on size and pressure, formulas to calculate speed, flow and force. It also discusses features such as seals, cushions, stop tubes, ports, and limit switches. The document concludes with guidelines for cylinder installation and troubleshooting.
This document discusses hydraulic circuits used in hydro power plants. It describes how changing the flow through movable guide vanes can increase or decrease the megawatts generated by adjusting the vane angle. This is achieved using a hydraulic circuit called a speed governor. The document then summarizes the main components of hydraulic circuits including valves, pumps, filters, accumulators, actuators, accessories and connecting pipes. It provides examples of different hydraulic valve types including directional control valves, pressure control valves and flow control valves.
The document discusses pneumatic systems and components. It describes how pneumatic systems use compressed air to transmit power and operate cylinders, valves, and other components. Some key advantages of pneumatic systems mentioned include being fast, easily transportable, variable speed and pressure, and clean operating. Common applications described are industrial robots, machine tools, brakes on vehicles, and dental/medical tools. The document also provides details on various pneumatic components like cylinders, valves, connectors, and their functions.
The document discusses different types of control valves used in steam and industrial fluid control systems. It describes two-port valves like globe valves and slide valves which restrict fluid flow, as well as three-port valves which can mix or divert fluid. Globe valves are commonly used for control due to their throttling ability and characteristic relating opening to flow. Balanced globe valves use upstream pressure to assist closing. The document also covers rotary valves like ball, plug and butterfly valves suited for remote actuation and isolation. Key factors in valve selection include required shut-off tightness, differential pressure rating, temperature and fluid compatibility.
3 valve shafts pneumatics and hydraulicsaman520305
Control valves determine the direction and flow of fluid in hydraulic circuits. There are three main types: directional control valves, pressure control valves, and flow control valves. Directional control valves include check valves, shuttle valves, and multi-way valves which control fluid flow paths. Pressure control valves such as relief valves, sequence valves, and pressure reducing valves maintain safe pressure levels. Flow control valves regulate fluid flow rates and actuator speeds. Proper use of control valves is important for safe and efficient operation of hydraulic systems.
The document discusses the fundamentals of hydraulic systems. It describes the advantages of hydraulic systems over other methods of power transmission as being simpler design, flexibility, smoothness, easy control, low cost, overload protection. It then discusses basic hydraulic systems including hydraulic jacks, motor-reversing systems, and open-center and closed-center systems. It also covers reservoirs, including their construction, shape, size, location, ventilation/pressurization, and line connections. Maintenance of hydraulic systems is also mentioned.
Directional control valves (DCVs) determine the path of fluid flow in hydraulic systems. There are several types of DCVs classified by fluid path, design characteristics, control method, and construction of internal moving parts. DCVs include check valves, shuttle valves, two-way valves, three-way valves, and four-way valves. DCVs can be actuated manually, mechanically, with a solenoid, or with a pilot signal. The simplest DCV is a check valve, which allows uni-directional flow. A poppet check valve uses a spring-loaded poppet to control flow direction, while a pilot-operated check valve uses a pilot signal to control flow in the
This document summarizes a control system lab experiment conducted by a student. The experiment involved developing multiple actuator circuits to control coordinated motion. The student's name, class, department, and academic year are provided. The document then discusses various methods for designing multi-cylinder pneumatic circuits and sequencing cylinder movement using sensors and limit switches. Common valve types like AND, OR, and solenoid valves are also described along with their functions.
This document describes an automatic pneumatically operated lemon cutting machine. The machine uses pneumatic cylinders powered by an air compressor to cut lemons. Lemon pieces are fed into the machine on an inclined plate and pressed by an upper cylinder. When the upper cylinder retracts, a lower cylinder extends to cut the lemon into pieces, which fall into a collection plate. The cylinders are controlled by a programmable timer circuit and solenoid valves to operate the cylinders sequentially. The machine is designed to continuously cut lemons in a safe, uniform manner without manual labor, reducing costs and improving efficiency over manual cutting.
How to Implement a Strategy: Transform Your Strategy with BSC Designer's Comp...Aleksey Savkin
The Strategy Implementation System offers a structured approach to translating stakeholder needs into actionable strategies using high-level and low-level scorecards. It involves stakeholder analysis, strategy decomposition, adoption of strategic frameworks like Balanced Scorecard or OKR, and alignment of goals, initiatives, and KPIs.
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Building Your Employer Brand with Social MediaLuanWise
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1. ACTUATORS
1.1 INTRODUCTION
Actuators Drive motions in mechanical systems. Most often this is by converting electrical
energy into some form of mechanical motion.
1.2 SOLENOIDS
Solenoids are the most common actuator components. The basic principle of operation is there is
a moving ferrous core (a piston) that will move inside wire coil as shown in Figure 1. Normally
the piston is held outside the coil by a spring. When a voltage is applied to the coil and current
flows, the coil builds up a magnetic field that attracts the piston and pulls it into the center of the
coil. The piston can be used to supply a linear force. Well known applications of these include
pneumatic values and car door openers.
Topics:
Objectives:
• Be aware of various actuators available.
• Solenoids, valves and cylinders
• Hydraulics and pneumatics
FIGURE 1: A SOLENOID
As mentioned before, inductive devices can create voltage spikes and may need snubbers,
although most industrial applications have low enough voltage and current ratings they can be
connected directly to the PLC outputs. Most industrial solenoids will be powered by 24Vdc and
draw a few hundred mA.
1.3 VALVES
The flow of fluids and air can be controlled with solenoid controlled valves. An example of a
solenoid controlled valve is shown in Figure 2. The solenoid is mounted on the side. When
actuated it will drive the central spool left. The top of the valve body has two ports that will be
connected to a device such as a hydraulic cylinder. The bottom of the valve body has a single
pressure line in the center with two exhausts to the side. In the top drawing the power flows in
Current Off
Current On
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through the center to the right hand cylinder port. The left hand cylinder port is allowed to exit
through an exhaust port. In the bottom drawing the solenoid is in a new position and the pressure
is now applied to the left hand port on the top, and the right hand port can exhaust. The symbols
to the left of the figure show the schematic equivalent of the actual valve positions. Valves are
also available that allow the valves to be blocked when unused.
Figure 2: A Solenoid Controlled 5 Ported, 4 Way 2 Position Valve
Valve types are listed below. In the standard terminology, the ’n-way’ designates the number of
connections for inlets and outlets. In some cases there are redundant ports for exhausts. The
normally open/closed designation indicates the valve condition when power is off. All of the
valves listed are two position valve, but three position valves are also available.
2-way normally closed - these have one inlet, and one outlet. When unenergized, the valve is
closed. When energized, the valve will open, allowing flow. These are used to permit flows.
2-way normally open - these have one inlet, and one outlet. When unenergized, the valve is
open, allowing flow. When energized, the valve will close. These are used to stop flows. When
system power is off, flow will be allowed.
3-way normally closed - these have inlet, outlet, and exhaust ports. When unenergized, the
outlet port is connected to the exhaust port. When energized, the inlet is connected to the outlet
port. These are used for single acting cylinders.
3-way normally open - these have inlet, outlet and exhaust ports. When unenergized, the inlet is
connected to the outlet. Energizing the valve connects the outlet to the exhaust. These are used
for single acting cylinders
3-way universal - these have three ports. One of the ports acts as an inlet or outlet, and is
connected to one of the other two, when energized/unenergized. These can be used to divert
flows, or select alternating sources.
The solenoid has two positions and
when actuated will change the
direction that fluid flows to the device.
The symbols shown here are
commonly used to represent this type
of valve.
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4-way - These valves have four ports, two inlets and two outlets. Energizing the valve causes
connection between the inlets and outlets to be reversed. These are used for double acting
cylinders.
Some of the ISO symbols for valves are shown in Figure 3. When using the symbols in drawings
the connections are shown for the un-energized state. The arrows show the flow paths in
different positions. The small triangles indicate an exhaust port.
Figure 3: ISO Valve Symbols
When selecting valves there are a number of details that should be considered, as listed below.
pipe size - inlets and outlets are typically threaded to accept NPT (national pipe thread).
flow rate - the maximum flow rate is often provided to hydraulic valves.
operating pressure - a maximum operating pressure will be indicated. Some valves will also
require a minimum pressure to operate.
electrical - the solenoid coil will have a fixed supply voltage (AC or DC) and current.
response time - this is the time for the valve to fully open/close. Typical times for valves range
from 5ms to 150ms.
enclosure - the housing for the valve will be rated as,
type 1 or 2 - for indoor use, requires protection against splashes
type 3 - for outdoor use, will resists some dirt and weathering
type 3R or 3S or 4 - water and dirt tight
type 4X - water and dirt tight, corrosion resistant
Two Way Two Position
Three Way Two Position
Four Way Two Position
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1.4 CYLINDERS
A cylinder uses pressurized fluid or air to create a linear force/motion as shown in Figure 4. In
the figure a fluid is pumped into one side of the cylinder under pressure, causing that side of the
cylinder to expand, and advancing the piston. The fluid on the other side of the piston must be
allowed to escape freely - if the incompressible fluid was trapped the cylinder could not advance.
The force the cylinder can exert is proportional to the cross sectional area of the cylinder.
For Force:
where,
P = the pressure of the hydraulic fluid
A = the area of the piston
F = the force available from the piston rod
Figure 4: A Cross Section of a Hydraulic Cylinder
Single acting cylinders apply force when extending and typically use a spring to retract the
cylinder. Double acting cylinders apply force in both direction.
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Figure 5: Schematic Symbols for Cylinders
Magnetic cylinders are often used that have a magnet on the piston head. When it moves to the
limits of motion, reed switches will detect it.
1.5 HYDRAULICS
Hydraulics use incompressible fluids to supply very large forces at slower speeds and limited
ranges of motion. If the fluid flow rate is kept low enough, many of the effects predicted by
Bernoulli’s equation can be avoided. The system uses hydraulic fluid (normally an oil)
pressurized by a pump and passed through hoses and valves to drive cylinders. At the heart of the
system is a pump that will give pressures up to hundreds or thousands of psi. These are delivered
to a cylinder that converts it to a linear force and displacement.
Hydraulic systems normally contain the following components;
1. Hydraulic Fluid
2. An Oil Reservoir
3. A Pump to Move Oil, and Apply Pressure
4. Pressure Lines
5. Control Valves - to regulate fluid flow
6. Piston and Cylinder - to actuate external mechanisms
The hydraulic fluid is often a non corrosive oil chosen so that it lubricates the components. This s
normally stored in a reservoir as shown in Figure 6. Fluid is drawn from the reservoir to a pump
where it is pressurized. This is normally a geared pump so that it may deliver fluid at a high
pressure at a constant flow rate. A flow regulator is normally placed at the high pressure outlet
from the pump. If fluid is not flowing in other parts of the system this will allow fluid to
recirculate back to the reservoir to reduce wear on the pump. The high pressure fluid is delivered
single acting spring return
cylinder
double acting cylinder
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to solenoid controlled vales that can switch fluid flow on or off. From the vales fluid will be
delivered to the hydraulics at high pressure, or exhausted back to the reservoir.
Figure 6: A Hydraulic Fluid Reservoir
Hydraulic systems can be very effective for high power applications, but the use of fluids, and
high pressures can make this method awkward, messy, and noisy for other applications.
1.6 PNEUMATICS
Pneumatic systems are very common, and have much in common with hydraulic systems with a
few key differences. The reservoir is eliminated as there is no need to collect and store the air
between uses in the system. Also because air is a gas it is compressible and regulators are not
needed to recirculate flow. But, the compressibility also means that the systems are not as stiff or
strong. Pneumatic systems respond very quickly, and are commonly used for low force
applications in many locations on the factory floor.
Some basic characteristics of pneumatic systems are,
- stroke from a few millimeters to meters in length (longer strokes have more springiness
- the actuators will give a bit - they are springy
- pressures are typically up to 85psi above normal atmosphere
- the weight of cylinders can be quite low
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- additional equipment is required for a pressurized air supply- linear and rotatory
actuators are available.
- dampers can be used to cushion impact at ends of cylinder travel.
When designing pneumatic systems care must be taken to verify the operating location. In
particular the elevation above sea level will result in a dramatically different air pressure. For
example, at sea level the air pressure is about 14.7 psi, but at a height of 7,800 ft (Mexico City)
the air pressure is 11.1 psi. Other operating environments, such as in submersibles, the air
pressure might be higher than at sea level.
Some symbols for pneumatic systems are shown in Figure 7. The flow control valve is used to
restrict the flow, typically to slow motions. The shuttle valve allows flow in one direction, but
blocks it in the other. The receiver tank allows pressurized air to be accumulated. The dryer and
filter help remove dust and moisture from the air, prolonging the life of the valves and cylinders.
Figure 7: Pneumatics Components
Flow control valve
Shuttle Valve
Receiver Tank
Pump
Filter
Dryer
Pressure Regulator
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1.7 MOTORS
Motors are common actuators, but for logical control applications their properties are not that
important. Typically logical control of motors consists of switching low current motors directly
with a PLC, or for more powerful motors using a relay or motor starter.
1.8 COMPUTERS
- More complex devices contain computers and digital logic.
- to interface to these we use TTL logic, 0V=false, 5V=true
- TTL outputs cards supply power and don’t need a separate power supply
- Sensitive to electrical noise.
1.9 OTHERS
There are many other types of actuators including those on the brief list below.
Heaters - The are often controlled with a relay and turned on and off to maintain a temperature
within a range.
Lights - Lights are used on almost all machines to indicate the machine state and provide
feedback to the operator. most lights are low current and are connected directly to the PLC.
Sirens/Horns - Sirens or horns can be useful for unattended or dangerous machines to make
conditions well known. These can often be connected directly to the PLC.
1.10 SUMMARY
• Solenoids can be used to convert an electric current to a limited linear motion.
• Hydraulics and pneumatics use cylinders to convert fluid and gas flows to limited
linear motions.
• Solenoid valves can be used to redirect fluid and gas flows.
• Pneumatics provides smaller forces at higher speeds, but is not stiff. Hydraulics
provides large forces and is rigid, but at lower speeds.
• Many other types of actuators can be used.
1.11 PRACTICE PROBLEMS
1. A piston is to be designed to exert an actuation force of 120 lbs on its extension stroke. The
inside diameter of the cylinder is 2.0” and the ram diameter is 0.375”. What shop air pressure
will be required to provide this actuation force? Use a safety factor of 1.3.
2. Draw a simple hydraulic system that will advance and retract a cylinder using PLC outputs.
Sketches should include details from the PLC output card to the hydraulic cylinder.
3. Develop an electrical ladder diagram and pneumatic diagram for a PLC controlled system. The
system includes the components listed below. The system should include all required safety and
wiring considerations.
a 3 phase 50 HP motor
1 NPN sensor
1 NO push button
1 NC limit switch
1 indicator light
a doubly acting pneumatic cylinder
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1.12 PRACTICE PROBLEM SOLUTIONS
1. A = pi*r^2 = 3.14159in^2, P=FS*(F/A)=1.3(120/3.14159)=49.7psi. Note, if the cylinder were
retracting we would need to subtract the rod area from the piston area. Note: this air pressure is
much higher than normally found in a shop, so it would not be practical, and a redesign would be
needed.
2.
1.13 ASSIGNMENT PROBLEMS
1. Draw a schematic symbol for a solenoid controlled pneumatic valve and explain how the valve
operates.
2. A PLC based system has 3 proximity sensors, a start button, and an E-stop as inputs. The
system controls a pneumatic system with a solenoid controlled valve. It also controls a robot with
a TTL output. Develop a complete wiring diagram including all safety elements.
3. A system contains a pneumatic cylinder with two inductive proximity sensors that will detect
when the cylinder is fully advanced or retracted. The cylinder is controlled by a solenoid
controlled valve. Draw electrical and pneumatic schematics for a system.
4. Draw an electrical ladder wiring diagram for a PLC controlled system that contains 2 PNP
sensors, a NO pushbutton, a NC limit switch, a contactor controlled AC motor and an indicator
light. Include all safety circuitry.
5. We are to connect a PLC to detect boxes moving down an assembly line and divert larger
boxes. The line is 12 inches wide and slanted so the boxes fall to one side as they travel by.
One sensor will be mounted on the lower side of the conveyor to detect when a box is present. A
second sensor will be mounted on the upper side of the conveyor to determine when a larger box
is present. If the box is present, an output to a pneumatic solenoid will be actuated to divert the
box. Your job is to select a specific PLC, sensors, and solenoid valve. Details (the absolute
minimum being model numbers) are expected with a ladder wiring diagram. (Note: take
advantage of manufacturers web sites.)
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MOTORS
DC GEARED MOTORS
SPECIFICATIONS
• DC SUPPLY 4 to 12V
• RPM: 10 TO 600 OR MORE
• TOTAL LENGTH : 46 mm
• Motor Diameter : 36 mm
• Motor Length: 25 mm
• Brush Type : Plastic / Metal
• Gear Head Diameter : 37 mm
• Gear Head Length : 21mm
• Output Shaft : Centred
• Shaft diameter: 6mm
• Shaft Length : 22mm
• Gear Assembly : Spur
DC ENCODER MOTORS
1. These DC motors uses 2 phase (quadrature) incremental encoders to detect the speed of
the motor and the distance it has travelled.
2. These motors are designed to run at 6 to 24 volts DC and they draw less than 3 amps
w/locked rotor. (This is normally referred to as the stall current and is usually the
maximum current draw for the motor). Motors are rated at 12 VDC but can be kicked up
to 24 VDC for short periods to get a higher power level if the amplifier used to run the
motor can provide the needed power.
3. Controller and Amplifiers for these motors should be able to provide a continuous current
of 3 amps and extremely short bursts of 6 amps. Popular, amplifiers and controllers
based on the National Semiconductor LMD18200 series chips will do this.
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HIGH TORQUE DC GEARED MOTOR
Features:
100RPM 12V DC motors with Metal Gearbox
25000 RPM base motor
6mm shaft diameter
Gearbox diameter 37 mm.
Motor Diameter 28.5 mm
Length 63 mm without shaft
Shaft length 15mm
300gm weight
35kgcm torque
No-load current = 800 mA(Max), Load current = upto 9.5 A(Max)
12V DC geared motors for robotics applications. It gives a massive torque of 35Kgcm.
The motor comes with metal gearbox and off-centered shaft. Shaft has a metal bushing
for wear resisinance.
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GEAR MOTOR – 90 DEGREE SHAFT
Features:
Working voltage : 3V to 9V
Compatible wheel available as optional item
40gm weight
Same size motor available in various rpm
3 Kgf.cm torque
No-load current = 60 mA, Stall current = 700 mA
DC geared motor which gives good torque and rpm at lower voltages. This motor can run
at approximately 150 rpm when driven by a single Li-Ion cell.
DUAL SHAFT GEAR MOTOR
This is a low cost low voltage durable dual
shaft DC geared motor. It is most suitable
for light weight robot running on small
voltage. Out of its two shafts one shaft can
be connected to wheel, other can be
connected to the position encoder. Drive
shaft has clutch for non continuous
protection from overload. Motor runs
smoothly from 2V to 9V and gives wide
range of RPM, and torque.
Specifications
· Voltage: 2V to 9V
· Current: No load and stall currents are
function of voltage. Fore more data refer
below tables
· RPM: 20 to 200. RPM is a function of
voltage. For more data refer below tables
· Clutch for non continuous protection from
overload conditions
· Motor weight: 30gms
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SERVO MOTORS
• A "servo" is a generic term used for an automatic control system. It comes from
the Latin word "servus" - slave. In practical terms, that means a mechanism that
you can set and forget, and which adjusts itself during continued operation through
feedback. Disk drives, for example, contain a servo system insuring that they spin
at a desired constant speed by measuring their current rotation, and speeding up or
slowing down as necessary to keep that speed.
• The position-sensing mechanism tells the servo what position the shaft currently
has. The control circuitry notes the difference between the desired position and the
current position, and uses the motor to "make it so". If the difference in position is
large, the motor moves rapidly to the correct position; if the difference is small,
the adjustment is more subtle. As for the operator, all he knows is that he moved a
slider half-way up, and the rudder on his model plane moved to the center
position, and will stay there until he moves the slider again.
• The most commonly available servo motors on the market are the range from
Futaba. These include high tech digital servo motors. The regular servo motors
used in radio controlled cars is small and inexpensive. These servo motors are
usually made from plastic and have plastic gears.
• Usually rc servo motors come in standard sizes and have similar control schemes.
Unlike other servo motors rc servo motors are constrained from full rotation. RC
servo motors are restricted to a limited rotation of 180 degrees or less. Standard
servo motors such as the Futaba S148 can undergo mods which are designed to
make it rotate a full 360 degrees.
15. INDIAN INSTITUTE OF ROBOTICS
www.indianinstituteofrobotics.com , info@iir.co.in
CONNECTIONS OF A SERVO MOTOR
• a high torque plastic gear servo motor measuring with dual ball bearings. It gives
6.4Kg/cm cm torque. This servo motor is ideal for making your own light weight
hexapod, walking insects, sensor / camera pod etc. Servo motors are used in radio control
models. They are very useful in robotics applications because of there small size and low
cost. Servomotor has built in motor, gearbox, position feedback mechanism and motor
controller. The servo motor can be controlled to move any position just by using simple
pulse controlling. This motor has three wire interfaces for control and power supply
• Specifications
• Dimension: 40.7mm x 20.5mm x39.5mm
• Torque: 6.4kg/cm
• Motor weight: 41gms
• Operating speed: 0.17sec/60 degree
• Operating voltage: 4.8V to 6V
• Temperature range: 0-55C .
HIGH TORQUE RC SERVO MOTOR WITH METAL
GEARS
Specifications :
· Dimension: 40.7mm x 20.5mm x39.5mm
· Torque: 15.5kg/cm at 4.8V, 17kg/cm at 6V
· Dual bearing with metal gear
· Motor weight: 60gms
· Operating speed: 0.15sec/60 degree
· Operating voltage: 4.8V to 6V
· Temperature range: 0-55C
16. INDIAN INSTITUTE OF ROBOTICS
www.indianinstituteofrobotics.com , info@iir.co.in
It gives whooping 15.5Kg to 17kg cm torque. This servo motor is ideal for making your own
hexapod, walking insects, heavy duty sensor / camera pod. Servo motors are used in radio
control models. They are very useful in robotics applications because of there small size and low
cost.
Servomotor has built in motor, gearbox, position feedback mechanism and motor controller. The
servo motor can be controlled to move any position just by using simple pulse controlling.
HS 485B DELUX HEAVY DUTY SERVO WITH
KARBONITE GEARS
Specifications :
• Dimension: 39.8mm x 19.8mm x37.8mm
• Torque: 5.2kg/cm at 4.8V, 6.4kg/cm at 6V
• Motor weight: 45gms
• Operating speed: 0.20sec/60 degree
• Operating voltage: 4.8V to 6V
• Temperature range: 0-55C
This is high torque Karbonite gear servo motor measuring 39.8mm x 19.8mm x37.8mm. It gives
5.2Kg to 6.4kg cm torque. This servo motor is suitable for making your own light weight
hexapod, walking insects, heavy duty sensor / camera pod etc. Servo motors are used in radio
control models.
They are very useful in robotics applications because of there small size and low cost.
Servomotor has built in motor, gearbox, position feedback mechanism and motor controller.