- Belt, rope, and chain drives are used to transmit power from one shaft to another using pulleys.
- Belts are the cheapest option and allow for shafts that are not parallel but have less strength than gears or chains.
- Chains provide perfect velocity ratio since there is no slippage between the links and sprockets, but require accurate mounting and maintenance.
- Different types of drives include flat belts, V-belts, circular belts, quarter turn drives, compound drives, and chain drives. Selection depends on the application parameters.
The document discusses different types of belt drives used to transmit power between rotating shafts, including flat belt drives, V-belt drives, circular/rope belt drives, and timing belt drives. It describes factors that affect power transmission via belts such as belt material, velocity, and tension. Different belt configurations are examined, including open belt drives, cross belt drives, and drives using idler pulleys. Selection criteria for belts include the speed and distance between shafts as well as the power level.
The document discusses different types of belt drives used to transmit power between rotating shafts, including flat belts, V-belts, circular belts, and rope drives. It covers factors that influence the amount of power transmitted, suitable applications for different belt types, advantages and disadvantages of V-belt drives, and advantages of using fibre ropes for rope drives.
The document discusses belt drives used for power transmission. It describes different types of belts based on shape, material, arrangement, and application. Belt drives can transmit power between parallel or perpendicular shafts using open, crossed, or quarter turn configurations. Selection depends on factors like speed, power, center distance, and space. The document also covers topics like velocity ratio, slip, creep, length calculation, power transmission, tension ratio, and angle of contact for belt drives.
This document discusses mechanisms and power transmission elements used in textile machines. It begins with basic definitions of mechanisms and describes how they transmit motion through rigid links and joints. The main power transmission elements discussed are belt drives, gear drives, and their applications in textile machines. Belt drives are the most commonly used and their operation, advantages, disadvantages, and types - including flat, V-belt, and timing belts - are explained in detail. Gear drives provide exact speed ratios but are more complex and expensive. The document also covers related topics like velocity and torque ratios, slip, and power transmission calculations for belts.
This document discusses belt drives and their components. It covers three key points:
1. Belt drives transmit power between shafts using pulleys. The amount of power transmitted depends on belt velocity, tension, and pulley contact arc.
2. There are different types of belts - flat, V, and circular - used depending on the distance between pulleys and amount of power transmitted.
3. The velocity ratio of a belt drive is the ratio of driver and follower speeds, which depends on pulley diameters and speeds according to the formula given. Compound drives use multiple pulleys calculated in a similar way.
Here are the steps to solve this problem:
(a) Crossed belt:
Velocity ratio for 60 rpm = 160/60 = 2.667
Radius of smaller pulley = 2.667 * 40 = 106.68 mm
Velocity ratio for 80 rpm = 160/80 = 2
Radius of larger pulley = 2 * 40 = 80 mm
(b) Open belt:
Velocity ratio for 60 rpm = 160/60 = 2.667
Radius of smaller pulley = 2.667 * 40 = 106.68 mm
Velocity ratio for 100 rpm = 160/100 = 1.6
Radius of larger pulley = 1.6 * 40 = 64 mm
1. Power transmission systems transmit mechanical power from one rotating element to another. Common types include belt drives, rope drives, chain drives, and gear drives.
2. Belt drives transmit power between parallel shafts using two pulleys connected by an endless belt. The driver pulley rotates and pulls the belt, rotating the driven pulley.
3. Factors like shaft distance, operating speed, and power requirements determine the appropriate transmission system. Belt drives are effective over moderate distances and speeds but experience some power loss due to slip and creep.
Belts are used to transmit power between rotating shafts using pulleys. The amount of power transmitted depends on the belt's velocity, tension, and contact arc with the pulleys. Common belt types include flat, V, and circular belts. Flat belts are used for moderate power transfers over short distances, while V and circular belts can handle greater power transfers or longer distances. Belt material options include leather, fabric, rubber, balata, nylon, and camel's hair. The velocity ratio of a belt drive is the ratio of the driver and follower speeds, which depends on their pulley diameters and rotations. Compound drives use multiple pulleys, with the overall ratio equaling the product of individual ratios. Belts can
The document discusses different types of belt drives used to transmit power between rotating shafts, including flat belt drives, V-belt drives, circular/rope belt drives, and timing belt drives. It describes factors that affect power transmission via belts such as belt material, velocity, and tension. Different belt configurations are examined, including open belt drives, cross belt drives, and drives using idler pulleys. Selection criteria for belts include the speed and distance between shafts as well as the power level.
The document discusses different types of belt drives used to transmit power between rotating shafts, including flat belts, V-belts, circular belts, and rope drives. It covers factors that influence the amount of power transmitted, suitable applications for different belt types, advantages and disadvantages of V-belt drives, and advantages of using fibre ropes for rope drives.
The document discusses belt drives used for power transmission. It describes different types of belts based on shape, material, arrangement, and application. Belt drives can transmit power between parallel or perpendicular shafts using open, crossed, or quarter turn configurations. Selection depends on factors like speed, power, center distance, and space. The document also covers topics like velocity ratio, slip, creep, length calculation, power transmission, tension ratio, and angle of contact for belt drives.
This document discusses mechanisms and power transmission elements used in textile machines. It begins with basic definitions of mechanisms and describes how they transmit motion through rigid links and joints. The main power transmission elements discussed are belt drives, gear drives, and their applications in textile machines. Belt drives are the most commonly used and their operation, advantages, disadvantages, and types - including flat, V-belt, and timing belts - are explained in detail. Gear drives provide exact speed ratios but are more complex and expensive. The document also covers related topics like velocity and torque ratios, slip, and power transmission calculations for belts.
This document discusses belt drives and their components. It covers three key points:
1. Belt drives transmit power between shafts using pulleys. The amount of power transmitted depends on belt velocity, tension, and pulley contact arc.
2. There are different types of belts - flat, V, and circular - used depending on the distance between pulleys and amount of power transmitted.
3. The velocity ratio of a belt drive is the ratio of driver and follower speeds, which depends on pulley diameters and speeds according to the formula given. Compound drives use multiple pulleys calculated in a similar way.
Here are the steps to solve this problem:
(a) Crossed belt:
Velocity ratio for 60 rpm = 160/60 = 2.667
Radius of smaller pulley = 2.667 * 40 = 106.68 mm
Velocity ratio for 80 rpm = 160/80 = 2
Radius of larger pulley = 2 * 40 = 80 mm
(b) Open belt:
Velocity ratio for 60 rpm = 160/60 = 2.667
Radius of smaller pulley = 2.667 * 40 = 106.68 mm
Velocity ratio for 100 rpm = 160/100 = 1.6
Radius of larger pulley = 1.6 * 40 = 64 mm
1. Power transmission systems transmit mechanical power from one rotating element to another. Common types include belt drives, rope drives, chain drives, and gear drives.
2. Belt drives transmit power between parallel shafts using two pulleys connected by an endless belt. The driver pulley rotates and pulls the belt, rotating the driven pulley.
3. Factors like shaft distance, operating speed, and power requirements determine the appropriate transmission system. Belt drives are effective over moderate distances and speeds but experience some power loss due to slip and creep.
Belts are used to transmit power between rotating shafts using pulleys. The amount of power transmitted depends on the belt's velocity, tension, and contact arc with the pulleys. Common belt types include flat, V, and circular belts. Flat belts are used for moderate power transfers over short distances, while V and circular belts can handle greater power transfers or longer distances. Belt material options include leather, fabric, rubber, balata, nylon, and camel's hair. The velocity ratio of a belt drive is the ratio of the driver and follower speeds, which depends on their pulley diameters and rotations. Compound drives use multiple pulleys, with the overall ratio equaling the product of individual ratios. Belts can
Power transmission and Different types of gearNaeeim Hasan
This document provides information about power transmission systems. It defines power transmission as the movement of energy from the place of generation to where it performs work. The main types of power transmission systems discussed are belt drives, rope drives, and chain drives. Belt drives can be flat belts, V-belts, or circular belts. Rope drives use either fiber or wire ropes. Chain drives use an endless chain running over gears. Different types of gears are also defined, including spur gears, helical gears, bevel gears, and internal/external gears.
P=250 kW
N1=300 rpm
D1=1.2 m
θ=π rad
β=22.5°
d=50 mm
m=1.3 kg/m
Pmax=2.2 kN
μ=0.3
Overhang=0.5 m
Shear stress=40 MPa
The document discusses various types of belt and rope drives used to transmit power between rotating shafts. It describes different belt materials, types of belts, components of belt drives, factors affecting power transmission, and applications. It also covers rope drives, materials used for ropes, advantages and disadvantages of rope drives, and considerations in selecting wire ropes
It is power point presentation on belt and chain drive. you can find working and mechanism of chain and belt drive and their advantage and disadvantages.....enjoy.
This is presentation I made an assignment assigned to me in the subject of Basic Mechanical Engineering. My this presentation was recognized as best among my class. I'm thankful to my subject teacher Sir Shreesh Dhavle for the guidance.
This document discusses belt drives and pulleys. It defines a belt drive as using one or more continuous belts over pulleys on two shafts to transfer rotary motion between them via friction. The main types of belts are described as flat, round, V-shaped, and timing belts. Examples of belt drive arrangements like open, crossed, and compound are provided along with relevant equations. Various industrial machine applications of different belt types are listed like lathes, drilling machines, and automobiles.
This document provides an introduction to flexible drives, specifically belt drives, used in transmission systems. It discusses the basic components and history of flexible drives. Belt drives transmit power between components over distance in a simple and cost-effective manner. The document outlines different types of belts and materials used. It explains key concepts in belt drives such as tight and slack sides, velocity ratio, belt creep, whipping, centrifugal tension, and slip. Flexible drives like belts are widely used to transfer power in machines and industrial applications.
This document provides an introduction to flexible drives, specifically belt drives, used in transmission systems. It discusses the basic components and history of flexible drives. Belt drives transmit power between components over distance in a simple and cost-effective manner. The document outlines different types of belts and materials used. It explains key concepts in belt drives such as tight and slack sides, velocity ratio, belt creep, whipping, centrifugal tension, and slip. Flexible drives like belt drives are widely used to transfer mechanical power in machines and vehicles.
DESIGN OF TRANSMISSION SYSTEMS FOR FLEXIBLE ELEMENTS.pptDr.G.Saravanan
This document provides information on the design of mechanical power transmission systems using flexible elements such as belts, chains, and ropes. It discusses the various types of belt drives, materials used for belts, design considerations for belts such as slip and creep. It also covers v-belt drives, wire rope drives, and chain drives. The key points covered are the different types of belts, principles of power transmission using belts and factors affecting it, advantages and limitations of v-belt, chain and wire rope drives.
The document discusses different types of belt drives used to transfer rotational motion between two shafts. It describes four common types of belts - flat belts, round belts, V-belts, and timing belts. It also discusses different belt drive arrangements including open, crossed, compound drives. Key points covered include the characteristics and applications of each belt type as well as formulas for calculating belt drive power and tension.
This document discusses belt drives and friction in bearings. It describes the components and functioning of belt drives, including types of belts, pulleys, velocity ratio calculations considering slippage, power transmission, and centrifugal effects. It also covers flat and conical pivot bearings, describing methods to calculate friction forces and wear for uniform pressure and wear distributions. Key points covered include belt material properties, V-belt wedging action, open and crossed belt drive configurations, and friction force calculations for flat and conical bearings.
This document discusses the design of transmission systems. It covers various types of belt drives used to transmit power between shafts including flat belts, V-belts, circular belts, and discusses factors to consider when selecting a belt drive such as the power needs, shaft speeds and layout. It also describes types of flat belt drives, materials used for belts, and defines concepts like velocity ratio, slip and creep in belt drives.
B.tech i eme u 5 transmission of motion and powerRai University
This document provides information on various power transmission elements and methods of drive, including belts, chains, gears, shafts, and other components. It discusses the components and functioning of belt drives, including different types of belts. Chain drives are described as using sprockets and links to transmit power without slip. The different types of gears are outlined, including spur gears, helical gears, bevel gears, worm gears, and rack and pinion systems. Terminology related to gears such as pitch circle, pressure angle, and modules are also defined. The document aims to explain the basic components and principles of different power transmission methods.
This document discusses belt drives and pulleys. It defines a belt drive as using one or more continuous belts over two pulleys to transfer rotary motion between two shafts via friction. The main types of belts are flat, round, V, and timing belts. Belt drives can be open, crossed, use idler pulleys, or be compound. Applications include machinery like drilling machines, lathes, and automobiles.
Power can be transmitted between shafts using belts, chains, gears, or ropes. The main types of drives are belt drives, chain drives, and gear drives. Belt drives can be flat, V-belt, or circular belts depending on the distance and angle between pulleys. V-belts are commonly used in short distances with grooved pulleys. Chain and gear drives are used when slip cannot occur between connecting parts. Chains are made of linked metal parts while gears mesh teeth to transmit power between shafts without slippage.
B.tech i eme u 5 transmission of motion and powerRai University
The document discusses various methods of power transmission including belt drives, chain drives, and gear drives. It describes the components, types, and applications of different power transmission elements like belts, pulleys, chains, and gears. Key power transmission methods covered include belt drives, which transmit power over distance using belts running over pulleys, and gear drives, which use meshing gears to reduce speed or change the direction of rotation between connected shafts.
The document discusses different types of power transmission systems including gear trains, chain drives, belt drives, and rope drives. It then focuses on belt drives, describing how the amount of power transmitted depends on factors like belt velocity, tension, and arc of contact. Belt drives are classified according to material as leather, cotton/fabric, or rubber belts. Open belt drives use parallel shafts rotating in the same direction, while crossed belt drives use parallel shafts rotating in opposite directions. Belt drives with idler pulleys are used when the angle of contact is small. Stepped or cone pulley drives change the speed of the driven shaft. Fast and loose pulley drives allow stopping the driven shaft without stopping the driver shaft. The length
Like Comment and download
Belt is a Flexible Mechanical element that transmit power from one shaft to another
Belt is a Flexible Mechanical element that transmit power from one shaft to another
Gear Train
Ex: Automobile, engines etc.
Chain Drive
Ex : Bi-cycle , Motor cycle etc.
Belt Drive
Ex: Rice mills, sewing machine etc.
Rope Drive
Ex: lift, crane etc
Design of rope, belt and chain by Aliyi UmerAliyi Umer
The document provides information on different types of belt, rope, and chain drives used for power transmission. It discusses flat belt drives, V-belt drives, rope drives, and chain drives. For each type of drive, it describes the components, operation, advantages and disadvantages. It also provides formulas for calculating important parameters like velocity ratio, power transmitted, stresses, and length of drives. Design procedures and considerations for selecting proper dimensions are discussed. Tables with standard dimensions and specifications for various drives are also included.
BELT DRIVE.pptx, machine element two chapter 3haymanot16
Belt drives transmit power between rotating shafts using belts and pulleys. Belts are loops of flexible material that link shafts mechanically. Power is transmitted from the driver pulley to the belt and then to the driven pulley through friction.
There are several types of belt drives depending on the shaft configuration and direction of rotation, including open belt drives, crossed belt drives, quarter turn drives, and drives using idler pulleys. Selection of a belt drive depends on factors like shaft speeds, power needs, and space constraints. Common belt materials include leather, rubber, and plastic. Belt drives are inexpensive and efficient but have limits on power and speed transmission.
The document discusses the design of transmission systems and describes rigid and flexible drives. Flexible drives use an intermediate link like a belt, rope, or chain to transmit power between a driving and driven shaft, providing advantages like transmitting power over long distances, absorbing shocks, and greater flexibility in shaft placement. Belt drives specifically use an endless belt around two pulleys to transmit power between shafts by friction and are commonly used in electric motors, automobiles, machine tools, and conveyors.
Power transmission and Different types of gearNaeeim Hasan
This document provides information about power transmission systems. It defines power transmission as the movement of energy from the place of generation to where it performs work. The main types of power transmission systems discussed are belt drives, rope drives, and chain drives. Belt drives can be flat belts, V-belts, or circular belts. Rope drives use either fiber or wire ropes. Chain drives use an endless chain running over gears. Different types of gears are also defined, including spur gears, helical gears, bevel gears, and internal/external gears.
P=250 kW
N1=300 rpm
D1=1.2 m
θ=π rad
β=22.5°
d=50 mm
m=1.3 kg/m
Pmax=2.2 kN
μ=0.3
Overhang=0.5 m
Shear stress=40 MPa
The document discusses various types of belt and rope drives used to transmit power between rotating shafts. It describes different belt materials, types of belts, components of belt drives, factors affecting power transmission, and applications. It also covers rope drives, materials used for ropes, advantages and disadvantages of rope drives, and considerations in selecting wire ropes
It is power point presentation on belt and chain drive. you can find working and mechanism of chain and belt drive and their advantage and disadvantages.....enjoy.
This is presentation I made an assignment assigned to me in the subject of Basic Mechanical Engineering. My this presentation was recognized as best among my class. I'm thankful to my subject teacher Sir Shreesh Dhavle for the guidance.
This document discusses belt drives and pulleys. It defines a belt drive as using one or more continuous belts over pulleys on two shafts to transfer rotary motion between them via friction. The main types of belts are described as flat, round, V-shaped, and timing belts. Examples of belt drive arrangements like open, crossed, and compound are provided along with relevant equations. Various industrial machine applications of different belt types are listed like lathes, drilling machines, and automobiles.
This document provides an introduction to flexible drives, specifically belt drives, used in transmission systems. It discusses the basic components and history of flexible drives. Belt drives transmit power between components over distance in a simple and cost-effective manner. The document outlines different types of belts and materials used. It explains key concepts in belt drives such as tight and slack sides, velocity ratio, belt creep, whipping, centrifugal tension, and slip. Flexible drives like belts are widely used to transfer power in machines and industrial applications.
This document provides an introduction to flexible drives, specifically belt drives, used in transmission systems. It discusses the basic components and history of flexible drives. Belt drives transmit power between components over distance in a simple and cost-effective manner. The document outlines different types of belts and materials used. It explains key concepts in belt drives such as tight and slack sides, velocity ratio, belt creep, whipping, centrifugal tension, and slip. Flexible drives like belt drives are widely used to transfer mechanical power in machines and vehicles.
DESIGN OF TRANSMISSION SYSTEMS FOR FLEXIBLE ELEMENTS.pptDr.G.Saravanan
This document provides information on the design of mechanical power transmission systems using flexible elements such as belts, chains, and ropes. It discusses the various types of belt drives, materials used for belts, design considerations for belts such as slip and creep. It also covers v-belt drives, wire rope drives, and chain drives. The key points covered are the different types of belts, principles of power transmission using belts and factors affecting it, advantages and limitations of v-belt, chain and wire rope drives.
The document discusses different types of belt drives used to transfer rotational motion between two shafts. It describes four common types of belts - flat belts, round belts, V-belts, and timing belts. It also discusses different belt drive arrangements including open, crossed, compound drives. Key points covered include the characteristics and applications of each belt type as well as formulas for calculating belt drive power and tension.
This document discusses belt drives and friction in bearings. It describes the components and functioning of belt drives, including types of belts, pulleys, velocity ratio calculations considering slippage, power transmission, and centrifugal effects. It also covers flat and conical pivot bearings, describing methods to calculate friction forces and wear for uniform pressure and wear distributions. Key points covered include belt material properties, V-belt wedging action, open and crossed belt drive configurations, and friction force calculations for flat and conical bearings.
This document discusses the design of transmission systems. It covers various types of belt drives used to transmit power between shafts including flat belts, V-belts, circular belts, and discusses factors to consider when selecting a belt drive such as the power needs, shaft speeds and layout. It also describes types of flat belt drives, materials used for belts, and defines concepts like velocity ratio, slip and creep in belt drives.
B.tech i eme u 5 transmission of motion and powerRai University
This document provides information on various power transmission elements and methods of drive, including belts, chains, gears, shafts, and other components. It discusses the components and functioning of belt drives, including different types of belts. Chain drives are described as using sprockets and links to transmit power without slip. The different types of gears are outlined, including spur gears, helical gears, bevel gears, worm gears, and rack and pinion systems. Terminology related to gears such as pitch circle, pressure angle, and modules are also defined. The document aims to explain the basic components and principles of different power transmission methods.
This document discusses belt drives and pulleys. It defines a belt drive as using one or more continuous belts over two pulleys to transfer rotary motion between two shafts via friction. The main types of belts are flat, round, V, and timing belts. Belt drives can be open, crossed, use idler pulleys, or be compound. Applications include machinery like drilling machines, lathes, and automobiles.
Power can be transmitted between shafts using belts, chains, gears, or ropes. The main types of drives are belt drives, chain drives, and gear drives. Belt drives can be flat, V-belt, or circular belts depending on the distance and angle between pulleys. V-belts are commonly used in short distances with grooved pulleys. Chain and gear drives are used when slip cannot occur between connecting parts. Chains are made of linked metal parts while gears mesh teeth to transmit power between shafts without slippage.
B.tech i eme u 5 transmission of motion and powerRai University
The document discusses various methods of power transmission including belt drives, chain drives, and gear drives. It describes the components, types, and applications of different power transmission elements like belts, pulleys, chains, and gears. Key power transmission methods covered include belt drives, which transmit power over distance using belts running over pulleys, and gear drives, which use meshing gears to reduce speed or change the direction of rotation between connected shafts.
The document discusses different types of power transmission systems including gear trains, chain drives, belt drives, and rope drives. It then focuses on belt drives, describing how the amount of power transmitted depends on factors like belt velocity, tension, and arc of contact. Belt drives are classified according to material as leather, cotton/fabric, or rubber belts. Open belt drives use parallel shafts rotating in the same direction, while crossed belt drives use parallel shafts rotating in opposite directions. Belt drives with idler pulleys are used when the angle of contact is small. Stepped or cone pulley drives change the speed of the driven shaft. Fast and loose pulley drives allow stopping the driven shaft without stopping the driver shaft. The length
Like Comment and download
Belt is a Flexible Mechanical element that transmit power from one shaft to another
Belt is a Flexible Mechanical element that transmit power from one shaft to another
Gear Train
Ex: Automobile, engines etc.
Chain Drive
Ex : Bi-cycle , Motor cycle etc.
Belt Drive
Ex: Rice mills, sewing machine etc.
Rope Drive
Ex: lift, crane etc
Design of rope, belt and chain by Aliyi UmerAliyi Umer
The document provides information on different types of belt, rope, and chain drives used for power transmission. It discusses flat belt drives, V-belt drives, rope drives, and chain drives. For each type of drive, it describes the components, operation, advantages and disadvantages. It also provides formulas for calculating important parameters like velocity ratio, power transmitted, stresses, and length of drives. Design procedures and considerations for selecting proper dimensions are discussed. Tables with standard dimensions and specifications for various drives are also included.
BELT DRIVE.pptx, machine element two chapter 3haymanot16
Belt drives transmit power between rotating shafts using belts and pulleys. Belts are loops of flexible material that link shafts mechanically. Power is transmitted from the driver pulley to the belt and then to the driven pulley through friction.
There are several types of belt drives depending on the shaft configuration and direction of rotation, including open belt drives, crossed belt drives, quarter turn drives, and drives using idler pulleys. Selection of a belt drive depends on factors like shaft speeds, power needs, and space constraints. Common belt materials include leather, rubber, and plastic. Belt drives are inexpensive and efficient but have limits on power and speed transmission.
The document discusses the design of transmission systems and describes rigid and flexible drives. Flexible drives use an intermediate link like a belt, rope, or chain to transmit power between a driving and driven shaft, providing advantages like transmitting power over long distances, absorbing shocks, and greater flexibility in shaft placement. Belt drives specifically use an endless belt around two pulleys to transmit power between shafts by friction and are commonly used in electric motors, automobiles, machine tools, and conveyors.
Similar to 314766841-Belt-Rope-and-Chain-Drive.pdf (20)
Expanding Access to Affordable At-Home EV Charging by Vanessa WarheitForth
Vanessa Warheit, Co-Founder of EV Charging for All, gave this presentation at the Forth Addressing The Challenges of Charging at Multi-Family Housing webinar on June 11, 2024.
Ever been troubled by the blinking sign and didn’t know what to do?
Here’s a handy guide to dashboard symbols so that you’ll never be confused again!
Save them for later and save the trouble!
EV Charging at MFH Properties by Whitaker JamiesonForth
Whitaker Jamieson, Senior Specialist at Forth, gave this presentation at the Forth Addressing The Challenges of Charging at Multi-Family Housing webinar on June 11, 2024.
Understanding Catalytic Converter Theft:
What is a Catalytic Converter?: Learn about the function of catalytic converters in vehicles and why they are targeted by thieves.
Why are They Stolen?: Discover the valuable metals inside catalytic converters (such as platinum, palladium, and rhodium) that make them attractive to criminals.
Steps to Prevent Catalytic Converter Theft:
Parking Strategies: Tips on where and how to park your vehicle to reduce the risk of theft, such as parking in well-lit areas or secure garages.
Protective Devices: Overview of various anti-theft devices available, including catalytic converter locks, shields, and alarms.
Etching and Marking: The benefits of etching your vehicle’s VIN on the catalytic converter or using a catalytic converter marking kit to make it traceable and less appealing to thieves.
Surveillance and Monitoring: Recommendations for using security cameras and motion-sensor lights to deter thieves.
Statistics and Insights:
Theft Rates by Borough: Analysis of data to determine which borough in NYC experiences the highest rate of catalytic converter thefts.
Recent Trends: Current trends and patterns in catalytic converter thefts to help you stay aware of emerging hotspots and tactics used by thieves.
Benefits of This Presentation:
Awareness: Increase your awareness about catalytic converter theft and its impact on vehicle owners.
Practical Tips: Gain actionable insights and tips to effectively prevent catalytic converter theft.
Local Insights: Understand the specific risks in different NYC boroughs, helping you take targeted preventive measures.
This presentation aims to equip you with the knowledge and tools needed to protect your vehicle from catalytic converter theft, ensuring you are prepared and proactive in safeguarding your property.
What Could Be Behind Your Mercedes Sprinter's Power Loss on Uphill RoadsSprinter Gurus
Unlock the secrets behind your Mercedes Sprinter's uphill power loss with our comprehensive presentation. From fuel filter blockages to turbocharger troubles, we uncover the culprits and empower you to reclaim your vehicle's peak performance. Conquer every ascent with confidence and ensure a thrilling journey every time.
Implementing ELDs or Electronic Logging Devices is slowly but surely becoming the norm in fleet management. Why? Well, integrating ELDs and associated connected vehicle solutions like fleet tracking devices lets businesses and their in-house fleet managers reap several benefits. Check out the post below to learn more.
Welcome to ASP Cranes, your trusted partner for crane solutions in Raipur, Chhattisgarh! With years of experience and a commitment to excellence, we offer a comprehensive range of crane services tailored to meet your lifting and material handling needs.
At ASP Cranes, we understand the importance of reliable and efficient crane operations in various industries, from construction and manufacturing to logistics and infrastructure development. That's why we strive to deliver top-notch solutions that enhance productivity, safety, and cost-effectiveness for our clients.
Our services include:
Crane Rental: Whether you need a crawler crane for heavy lifting or a hydraulic crane for versatile operations, we have a diverse fleet of well-maintained cranes available for rent. Our rental options are flexible and can be customized to suit your project requirements.
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At ASP Cranes, customer satisfaction is our top priority. We are dedicated to delivering reliable, cost-effective, and innovative crane solutions that exceed expectations. Contact us today to learn more about our services and how we can support your project in Raipur, Chhattisgarh, and beyond. Let ASP Cranes be your trusted partner for all your crane needs!
2. Introduction
The belt or ropes are used to Transmit power
from one shaft to another by means of pulley
which rotate at the same speed or at different
Speeds.
Belt
Belt
A Belt is a looped strip of flexible material, used
to mechanically link two or more rotating shafts.
Belts are looped over pulleys.
Prof Divyesh B. Morabiya
3. Belt Drive
When a belt is used for power transmission it is
called a belt drive
Belts are the cheapest utility for power
transmission between shafts that may not be
parallel.
Power transmission is achieved by specially
Power transmission is achieved by specially
designed belts and pulleys.
Belts run smoothly and with little noise, and
cushion motor and bearings against load
changes, but has less strength than gears or
chains.
Prof Divyesh B. Morabiya
4. Power Transmitted depend upon
The velocity of the belt.
The tension under which the belt is placed on the
pulley.
The arc of contact between the belt and the
smaller pulley.
smaller pulley.
The condition under which the Belt is used.
Prof Divyesh B. Morabiya
5. Selection of Belt Drive
Speed of the Driving and Driven shaft.
Speed reduction ratio.
Power to be Transmitted.
Center Distance between the shaft.
Positive Drive requirement.
Shaft layout.
Space available.
Service Condition.
Prof Divyesh B. Morabiya
6. Types of Belt Drive
Light Drive:- Used to Transmit small power at
the speeds upto about 10 m/s.
Agricultural machines & small machine tool.
Medium Drive:- Used to Transmit at the
speeds Over 10 m/s but upto 22m/s.
speeds Over 10 m/s but upto 22m/s.
Machine Tools.
Heavy Drive:-Used to Transmit Large power
at the speeds upto Above 22 m/s.
Compressor and generators
Prof Divyesh B. Morabiya
7. Types of Belts
Flat Belt
V- Belt
V- Belt
Circular Belt.
Prof Divyesh B. Morabiya
8. Flat belt
The flat belt mostly used in the factories and
workshop.
where a moderate amount of power to be
transmitted, from one pulley to another when the
transmitted, from one pulley to another when the
two pulley are not more than 8 meters apart.
Prof Divyesh B. Morabiya
9. V-Belt
The V- Belt mostly used in the factories and
workshop,
where a moderate amount of power to be
transmitted, from one pulley to another when the
two pulley are Very near to Each other.
two pulley are Very near to Each other.
Prof Divyesh B. Morabiya
10. Circular Belt or Rope
The Circular belt mostly used in the factories and
workshop.
where a great moderate amount of power to be
transmitted, from one pulley to another when the
two pulley are more than 8 meters apart.
two pulley are more than 8 meters apart.
Prof Divyesh B. Morabiya
11. Material used for belts must be strong, durable and flexible. It must have high
coefficient of friction, µ. The material used are;
1. Leather belt
2. Rubber belt
3. Cotton / fabric belts
The coefficient of friction of belts depends upon factors such as belt material,
pulley material, slip of belt and speed of belt. Table shows some of µ value for
belt and pulley material;
Prof Divyesh B. Morabiya
12. Types of Belt Drives.
Open belt drive.
Crossed or Twisted belt drive.
Quarter turn belt drive.
Belt Drive with Idler pulley.
Compound Belt Drive.
Compound Belt Drive.
Stepped or cone Pulley Drive.
Fast and loose pulley Drive.
Prof Divyesh B. Morabiya
13. Open belt drive.
Open belt drive is used with shafts
arranged parallel and rotating in the
same direction.
In this case, the driver A pulls the belt
from one side (i.e. lower side RQ) and
delivers it to the other side (i.e. upper
side LM).
side LM).
Thus the tension in the lower side belt
will be more than that in the upper side
belt.
The lower side belt (because of more
tension) is known as tight side whereas
the upper side belt (because of less
tension) is known as slack side.
Prof Divyesh B. Morabiya
14. Crossed or twist belt drive.
Cross belt drive is used with shafts
arranged parallel and rotating in the
opposite direction.
In this case, the driver pulls the belt
from one side (i.e. RQ) and delivers
it to the other side (i.e. LM).
it to the other side (i.e. LM).
Thus the tension in the belt RQ will
be more than that in the belt LM.
The belt RQ (because of more
tension) is known as tight side,
whereas the belt LM (because of less
tension) is known as slack side.
Prof Divyesh B. Morabiya
15. Crossed or twist belt drive.
A little consideration will show
that at a point where the belt
crosses, it rubs against each
other and there will be excessive
wear and tear.
wear and tear.
In order to avoid this, the shafts
should be placed at a maximum
distance of 20 b, where b is the
width of belt and the speed of
the belt should be less than 15
m/s.
Prof Divyesh B. Morabiya
18. Quarter turn belt drive.
The quarter turn belt drive also
known as right angle belt drive.
It is used with shafts arranged at
right angles and rotating in one
definite direction.
definite direction.
In order to prevent the belt from
leaving the pulley, the width of
the face of the pulley should be
greater or equal to 1.4 b, where
b is the width of belt.
Prof Divyesh B. Morabiya
20. Belt drive with idler pulleys.
Idler pulley is used with shafts arranged parallel and
when an open belt drive cannot be used due to small
angle of contact on the smaller pulley.
This type of drive is provided to obtain high velocity
ratio and when the required belt tension cannot be
ratio and when the required belt tension cannot be
obtained by other means.
When it is desired to transmit motion from one shaft
to several shafts, all arranged in parallel and they are
called belt drive with many idler pulleys
Prof Divyesh B. Morabiya
22. Compound belt drive.
A compound belt drive is used when power is
transmitted from one shaft to another through a
number of pulleys.
Prof Divyesh B. Morabiya
23. Stepped or cone pulley drive.
A stepped or cone pulley
drive is used for
changing the speed of
the driven shaft while
the main or driving shaft
the main or driving shaft
runs at constant speed.
This is accomplished by
shifting the belt from
one part of the steps to
the other.
Prof Divyesh B. Morabiya
24. Fast and loose pulley drive.
A fast and loose pulley drive is used
when the driven or machine shaft is
to be started or stopped when ever
desired without interfering with the
driving shaft.
A pulley which is keyed to the
A pulley which is keyed to the
machine shaft is called fast pulley
and runs at the same speed as that
of machine shaft.
Prof Divyesh B. Morabiya
25. Fast and loose pulley drive.
A loose pulley runs freely over the
machine shaft and is incapable of
transmitting any power.
When the driven shaft is required to
When the driven shaft is required to
be stopped, the belt is pushed on to
the loose pulley by means of sliding
bar having belt forks.
Prof Divyesh B. Morabiya
26. It is the ratio between the velocities of the driver and the
follower or driven. It may be
d1 = Diameter of the driver
d2 = Diameter of the follower
N1 = Speed of the driver in r.p.m., and
N2 = Speed of the follower in r.p.m.
Length of the belt that passes over the driver, in one
Length of the belt that passes over the driver, in one
minute= π d1.N1
length of the belt that passes over the follower, in one
minute = π d2 . N2
Prof Divyesh B. Morabiya
27. Since the length of belt that passes over the driver in one
minute is equal to the length of belt that passes over the
follower in one minute, therefore
π d1.N1 = π d2 . N2
Prof Divyesh B. Morabiya
28. Power Transmitted by a Belt
T1 and T2 = Tensions in the tight and
slack side of the belt respectively in
newtons
r1 and r2 = Radii of the driver and
follower respectively, and
v = Velocity of the belt in m/s.
v = Velocity of the belt in m/s.
The effective turning (driving) force at
the circumference of the follower is
the difference between the two
tensions (i.e. T1 – T2).
Work done per second = (T1 – T2). v
and power transmitted, P = (T1 – T2)v
Prof Divyesh B. Morabiya
29. Ratio of Driving Tensions For Flat Belt Drive
Prof Divyesh B. Morabiya
30. Ratio of Driving Tensions For Flat Belt Drive
Prof Divyesh B. Morabiya
31. Ratio of Driving Tensions For Flat Belt Drive
Prof Divyesh B. Morabiya
38. Ratio of Driving Tensions for Rope Drive
Prof Divyesh B. Morabiya
39. Centrifugal Tension
Belt continuously runs over the pulleys, therefore,
some centrifugal force is caused, whose effect is to
increase the tension on both, tight as well as the slack
sides.
The tension caused by centrifugal force is called
The tension caused by centrifugal force is called
centrifugal tension.
At lower belt speeds (less than 10 m/s), the centrifugal
tension is very small, but at higher belt speeds (more
than 10 m/s), its effect is considerable and thus should
be taken into account.
Prof Divyesh B. Morabiya
41. Centrifugal Tension
When the centrifugal tension is taken into account,
Then total tension in the tight side,
Total tension in the slack side,
Prof Divyesh B. Morabiya
42. Maximum Tension in the Belt
Maximum tension in the belt (T) is equal to the total tension
in the tight side of the belt (Tt1).
Prof Divyesh B. Morabiya
43. Condition For the Transmission of Maximum Power
Ratio of driving tensions is
Ratio of driving tensions is
Substituting the value of T2 in equation
Where value of C is consider by
Prof Divyesh B. Morabiya
44. Substituting the value of T1 in equation
Differentiate the above expression with respect to v and equate to zero
Velocity of the belt for the maximum power from eq.
Prof Divyesh B. Morabiya
45. Initial Tension in the Belt
Increase of tension in the tight side
Increase in the length of the belt on the tight side
Decrease in tension in the slack side
Decrease in the length of the belt on the slack side
Prof Divyesh B. Morabiya
46. Initial Tension in the Belt
Assuming that the belt material is perfectly elastic such that the
length of the belt remains constant, when it is at rest or in motion,
Therefore increase in length on the tight side is equal to decrease
in the length on the slack side.
…Neglecting centrifugal tension
…Considering centrifugal tension
Prof Divyesh B. Morabiya
47. Chain Drives
In belt and rope drives that slipping may occur.
In order to avoid slipping, steel chains are used.
The chains are made up of rigid links which are hinged together
in order to provide the necessary flexibility for warping around
the driving and driven wheels.
the driving and driven wheels.
The wheels have projecting teeth and fit into the corresponding
recesses, in the links of the chain.
The wheels and the chain are thus constrained to move together
without slipping and ensures perfect velocity ratio. The
toothed wheels are known as sprocket wheels or simply
sprockets.
Prof Divyesh B. Morabiya
48. Advantages and Disadvantages of Chain Drive
Over Belt or Rope Drive
Advantages
As no slip takes place during chain drive, hence perfect velocity
ratio is obtained.
Since the chains are made of metal, therefore they occupy less
space in width than a belt or rope drive.
The chain drives may be used when the distance between the
The chain drives may be used when the distance between the
shafts is less.
The chain drive gives a high transmission efficiency (upto 98 %).
The chain drive gives less load on the shafts.
The chain drive has the ability of transmitting motion to several
shafts by one chain only.
Prof Divyesh B. Morabiya
49. Advantages and Disadvantages of Chain Drive
over Belt or Rope Drive
Disadvantages
The production cost of chains is relatively high.
The chain drive needs accurate mounting and careful
maintenance.
The chain drive has velocity fluctuations especially when
unduly stretched.
unduly stretched.
Prof Divyesh B. Morabiya
50. Classification of Chains
The chains, on the basis of their use, are classified into the
following three groups :
Hoisting and hauling (or crane) chains,
Hoisting and hauling (or crane) chains,
Conveyor (or tractive) chains, and
Power transmitting (or driving) chains.
Prof Divyesh B. Morabiya
51. Hoisting and Hauling Chains
1.Chain with oval links.
The links of this type of chain are of
oval shape, as shown in Fig.
The joint of each link is welded.
The sprockets which are used for
The sprockets which are used for
this type of chain have receptacles to
receive the links.
Such type of chains are used only at
low speeds such as in chain hoists
and in anchors for marine works.
Prof Divyesh B. Morabiya
52. Hoisting and Hauling Chains
2. Chain with square links.
The links of this type of chain are
of square shape, as shown in Fig.
Such type of chains are used in
hoists, cranes, dredges.
hoists, cranes, dredges.
The manufacturing cost of this
type of chain is less than that of
chain with oval links.
Prof Divyesh B. Morabiya
53. Conveyor Chains
These chains are used for elevating and conveying the
materials continuously.
The conveyor chains are of the following two types :
1. Detachable or hook joint type chain.
2. Closed joint type chain.
The conveyor chains are usually made of malleable cast iron.
The conveyor chains are usually made of malleable cast iron.
These chains do not have smooth running qualities. The
conveyor chains run at slow speeds of about 3 to 12 km.p.h.
Prof Divyesh B. Morabiya
54. Power Transmitting Chains
These chains are used for transmission of power, when the
distance between the centres of shafts is short. These chains
have provision for efficient lubrication.
The power transmitting chains are of the following three
types.
types.
1. Block chain
2. Bush roller chain
3. Inverted tooth or silent chain.
Prof Divyesh B. Morabiya
55. Power Transmitting Chains
1. Block chain
it is also known as bush chain
Produce noise because of rubbing between teeth
and links
Prof Divyesh B. Morabiya
56. Power Transmitting Chains
2. Bush Roller chain (It consist of )
1. Outer plate or pin link plate
2. Inner plate or roller link plate
3. Pins
4. Bushes
5. Rollers
5. Rollers
Prof Divyesh B. Morabiya
57. Power Transmitting Chains
Advantages of bush chain
1. Extremely strong
2. Simple in construction
3. It gives good service under sever condition
4. Can be used with little lubrication
4. Can be used with little lubrication
5. Produce little noise
6. Rollers resist wear
Prof Divyesh B. Morabiya
58. Power Transmitting Chains
3. Inverted tooth or silent
chain
Purpose
•Noiseless running
•Noiseless running
•Eliminates the effects on
chain and sprocket caused by
stretching
Prof Divyesh B. Morabiya
59. Terms Used in Chain Drive
Pitch of chain
It is the distance between the hinge centre of a link and the corresponding
hinge centre of the adjacent link, as shown in Fig. It is usually denoted by p.
60. Pitch circle diameter of chain sprocket.
It is the diameter of the circle on which the hinge centres of the
chain lie, when the chain is wrapped round a sprocket as shown in
above Fig. The points A, B, C, and D are the hinge centres of the chain
and the circle drawn through these centres is called pitch circle and
its diameter (D) is known as pitch circle diameter.
its diameter (D) is known as pitch circle diameter.
62. Relation Between “Pitch” and
“Pitch Circle Diameter (p and d)
A chain wrapped round the
sprocket is shown in Fig.. Since
the links of the chain are rigid,
therefore pitch of the chain does
not lie on the arc of the pitch
circle.
circle.
The pitch length becomes a
chord.
Consider one pitch length AB of
the chain subtending an angle Ө
at the centre of sprocket (or
pitch circle),
63. Let
D = Diameter of the pitch circle, and
T = Number of teeth on the sprocket.
From Fig. we find that pitch of the chain