Upload
shanmuga-sunderesan
View
136
Download
2
Tags:
Embed Size (px)
Citation preview
DESIGN AND FABRICATION OF ELECTRO MAGNETIC BRAKING
SYSTEM
GUIDE: Mr.C.SUBRAMANIYAN ,M.E.,
(Assistant professor)MEMBERS:
R.Vijayaraman V.Muruganandam
T.Anandha babu A.Siva
INTRODUCTION: Electromagnetic brakes have been used as
supplementary retardation equipment in addition to the regular friction brakes on heavy vehicles.
We outline the general principles of regular brakes and several alternative retardation techniques in this section.
The working principle and characteristics of electromagnetic brakes are then highlighted.
BASIC PRINCIPLE:
Whenever the current carrying conductor cuts the magnetic field, the “e.m.f” (Electro magnetic force) is induced.
MAIN PARTS OF THE BRAKING SYSTEM:
Battery (7Ah, 12V)
Relay switch.
Brake shoes.
Wheel hub.
Battery Relay switch
WORKING: There are three parts to an electromagnetic
brake: Relay switch, Brake shoes, and hub (which is the input on a brake).
The electric supply from the battery is given to the brake shoes through the relay switch when the brake pedal is pressing.
Then the brake shoes get magnetized. So when the brake shoes is attracted to the
hub, the stopping torque is transferred into the hub housing and into the wheel decelerating the load. This can happen very fast (1-3sec).
The amount of torque produced T = 4136.52 N-m Disengagement is very simple. Once
the relay switch starts to degrade flux falls rapidly and the brake shoes separates.
A spring(s) hold the brake shoes away from its corresponding contact surface at a predetermined air gap.
HUB AND BRAKE SHOE ASSEMLY:
COST ESTIMATION: Battery (12volt) - 700
Wheel and brake shoe - 500
Relay switch - 150
Assembly (brake shoe) - 150
Contd……
Frame assembly (stand) - 300
Paint - 150
Others - 150
Total - 2100
ADVANTAGE:
Easy to construction. Low cost. Efficient braking method. Engagement time is very less. Easy to Engage and Disengage.
APPLICATION:
This method is applicable for both four wheeler and two wheeler.
CONCLUSION:
It is conclusion of our project , Brake applied by using the ‘Electro Magnetic Induction’ principle.
Our project has provided us an excellent opportunity to observe our skills.
Also give us confidence to face any challenge in tech globalize competitive world.
REFERENCE:
Flemming, Frank; Shapiro, Jessica (July 7, 2009).”BASICS OF ELECTROMAGNETIC CLUTCHES” (PDF).
R.B.Gupta (sep 5, 2008). ”AUTOMOBILE ENGINEERING”.
Retrieved from http://en.wikipedia.org/wiki/electromagnetic brake.
BRAKE SHOE CONNECTION:
PROTOTYPE: