This presentation provides an overview of worm gears, including their two types (cylindrical and cone), three types of worm gears, common materials used, key terms, how they work to reduce speed and increase torque via a high velocity ratio, common applications, advantages of being self-locking and occupying less space, disadvantages of higher costs and lower efficiency, and areas for further research such as improved lubrication. Worm gears are widely used gear systems for transmitting power between non-intersecting shafts, especially at high velocity ratios.
This presentation briefly tells about the classification of Gears. It includes information about spur, helical, bevel, herringbone, rack and pinion, internal and external gears.
Unit 7-gear trains, Kinematics of machines of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
This presentation briefly tells about the classification of Gears. It includes information about spur, helical, bevel, herringbone, rack and pinion, internal and external gears.
Unit 7-gear trains, Kinematics of machines of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
This presentation contains basic idea regarding spur gear and provides the best equations for designing of spur gear. One can Easily understand all the parameters required to design a Spur Gear
A helical gear has teeth in form of helix around the gear. Two such gears may be used to connect two parallel shafts in place of spur gears. The helixes may be right handed on one gear and left handed on the other. The pitch surfaces are cylindrical as in spur gearing, but the teeth instead of being parallel to the axis, wind around the cylinders helically like screw threads.
Unit 6- spur gears, Kinematics of machines of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
A gear bearing is a type of rolling-element bearing similar to an epicyclic gear. Gear bearings consist of a number of smaller 'satellite' gears which revolve around the center of the bearing along a track on the outsides of the internal and satellite gears, and on the inside of the external gear.
The worm gears are widely used for transmitting power at high velocity ratios between non-intersecting shafts that are generally, but not necessarily, at right angles.
It can give velocity ratios as high as 300 : 1 or more in a single step in a minimum of space, but it has a lower efficiency.
Rolling contact bearings and design procedureJashavant singh
this slide will give you idea about the rolling contact bearing , its types application areas and also you will learn how to design rolling contact bearing ,
comparison between the rolling contact and sliding contact bearing , advantage and disadvantages.
Rolling Contact Bearing, Selection of Rolling Contact Bearings, Machine Element Design, Bantalan Gelinding, Pemilihan Bantalan Gelinding, Perancangan Elemen Mesin
This presentation contains basic idea regarding spur gear and provides the best equations for designing of spur gear. One can Easily understand all the parameters required to design a Spur Gear
A helical gear has teeth in form of helix around the gear. Two such gears may be used to connect two parallel shafts in place of spur gears. The helixes may be right handed on one gear and left handed on the other. The pitch surfaces are cylindrical as in spur gearing, but the teeth instead of being parallel to the axis, wind around the cylinders helically like screw threads.
Unit 6- spur gears, Kinematics of machines of VTU Syllabus prepared by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
A gear bearing is a type of rolling-element bearing similar to an epicyclic gear. Gear bearings consist of a number of smaller 'satellite' gears which revolve around the center of the bearing along a track on the outsides of the internal and satellite gears, and on the inside of the external gear.
The worm gears are widely used for transmitting power at high velocity ratios between non-intersecting shafts that are generally, but not necessarily, at right angles.
It can give velocity ratios as high as 300 : 1 or more in a single step in a minimum of space, but it has a lower efficiency.
Rolling contact bearings and design procedureJashavant singh
this slide will give you idea about the rolling contact bearing , its types application areas and also you will learn how to design rolling contact bearing ,
comparison between the rolling contact and sliding contact bearing , advantage and disadvantages.
Rolling Contact Bearing, Selection of Rolling Contact Bearings, Machine Element Design, Bantalan Gelinding, Pemilihan Bantalan Gelinding, Perancangan Elemen Mesin
Describes the Static and Dynamic Equation of Gears.
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For graduate students in engineering. Please send comments to solo.hermelin@gmail.com.
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Clearance. It is the radial distance from the top of the tooth to the bottom of the tooth, in a meshing gear. A circle passing through the top of the meshing gear is known as clearance circle.
2. Total depth. It is the radial distance between the addendum and the dedendum circle of a gear. It is equal to the sum of the addendum and dedendum.
I want this job to utilize the skills which I've gotten from my Boss, colleague and others. I will utilize this knowledge for the success of you and for my personal success. I will prove myself by my job.
Law of toothed gearing – Involutes and cycloidal tooth profiles –Spur Gear terminology and
definitions –Gear tooth action – contact ratio – Interference and undercutting. Helical, Bevel, Worm, Rack and Pinion gears
The gears are a type of mechanical element whose teeth are cut around a cylindrical or conical surface with the same space. It is used for the rotation and transmission of force from the drive shaft to the driven shaft when coupling a pair of elements. The gears can be classified into spiral, cycloid and trochoidal gears according to their shape. It can also be classified as parallel shaft gear, transverse shaft gear and non-parallel and non-transverse shaft gear depending on the position of the shaft.
Law of toothed gearing – Involutes and cycloidal tooth profiles –Spur Gear terminology and
definitions –Gear tooth action – contact ratio – Interference and undercutting. Helical, Bevel, Worm, Rack and Pinion gears
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
2. INTRODUCTION
• Worm gears are gears which are widely used for transmitting power
at high velocity ratios between non-intersecting shafts that are
generally, but not necessarily, at right angles.
• It can give velocity ratios as high as 300:1 or more.
• It is mostly used as a speed reducer, which consists of worm and
worm wheel or gear.
• The worm wheel or gear is similar to a helical gear with a face curved
to conform to the shape of the worm.
3. TYPES OF WORMS
• There are two types of worms. They are as follows:
1. Cylindrical or straight worm.
2. Cone or double enveloping worm.
4. TYPES OF WORM GEARS
• The important three types of worm gears are given below.
1.Straight face worm gear.
2.Hobbed straight face worm gear.
3.Concave face worm gear.
5. MATERIALS USED:
FOR WORM:
• CAST IRON
• ALLOY STEEL
• CAST STEELS
• CARBON STEELS
FOR WORM WHEEL:
• ALUMINIUM
• BRASS
• COPPER
• PLASTIC
6. Terms Used
• Axial pitch: It is also known as linear pitch of a worm. It is the
distance measured axially from a point on one thread to the
corresponding point on the adjacent point on the worm.
• Lead: It is the linear distance through which a point on a thread
moves ahead in one revolution of the worm.
• Lead angle: It is the angle between the tangent to the thread helix
on the pitch cylinder and the plane normal to the axis of the worm. It
is denoted by λ.
7.
8. • Tooth pressure angle: It is measured in a plane containing the axis of the
worm and is equal to one- half the thread profile angle.
• Normal pitch: It is a distance measured along the normal to the threads
between two corresponding points on two adjacent threads of the worm.
• Helix angle: It is the angle between the tangent to the thread helix on
the pitch cylinder and the axis of the worm.
• Velocity ratio: It is the ratio of speed of worm in r.p.m to the speed of
worm gear in r.p.m.
9. How worm gear works
• The worm (screw) continuously rotates and drives the worm wheel
(meshed with it). Worm and worm gear form a lower pair as they
have sliding contact with each other.
• In a worm gear drive, power is always transmitted from worm to
worm wheel. Power cannot be transmitted from worm wheel to
worm. This phenomenon is called self-locking. It is highly useful in
many applications.
• Velocity ratio is determined by the number of teeth on worm gear
and the number starts on worm. Power transmission decreases with
increase in velocity ratio.
15. Advantages of Worm Drives:
1. Worm gear drives operate silently and smoothly.
2. They are self-locking.
3. They occupy less space.
4. They have good meshing effectiveness.
5. They can be used for reducing speed and increasing torque.
6. High velocity ratio of the order of 100 can be obtained in a single step
16. Disadvantages of Worm Drives:
1. Worm gear materials are expensive.
2. Worm drives have high power losses and low transmission
efficiency.
3. They produce a lot of heat.
17. Applications of Worm Gear
Drives:
Gate control mechanisms
Hoisting machines
Automobile steering mechanisms
Lifts
Conveyors
Presses
Speed reducer
18. Areas of further Research and Development
specific lubricants
Special design for effective lubrication and cooling
New material to accommodate less losses of material in worm wheel
Development of specific pair of material for higher transmission
capacity and efficiency