21-10-2016, 09:45 AM
1460263112-ELECTROMAGNETICBRAKINGSYSTEM.pptx (Size: 81.51 KB / Downloads: 11)
ABSTRACT
An electromagnetic brakes uses of magnetic force to engage the brake
The disc is connected to a shaft and the electromagnetic is mounted on the frame
When the electricity applied to coil a magnetic field develop across the coil
The current flow across the coil causes armature to get attract towards the coil
As a result it develop the torque eventually the to stop
INTRODUCTION
Let us the see project of electromagnetic braking system
A brake is a device used to inhibits the motion
Its opposite component is a clutch
Most commonly brakes use friction to convert kinetic energy to heat though other method of energy conversion employed
For example : regenerative braking converts much of energy to electrical energy for stored to later use
WORKING OF ELECTROMAGNETIC BRAKING
Working of electromagnetic brakes is very simple to understand
When electricity is applied to the field, it creates an internal magnetic flux.
The created magnetic flux moved to a hysteresis disk is connected to the brake shaft
A magnetic drag on the hysteresis disk allow for a constant drag to create eventually stoppage to output shaft
ADVANTAGES
Electromagnetic brakes can develop a negative power which represents nearly twice the maximum power output of typical engine
Electromagnetic brakes has great braking efficiency and has the potential to regain energy lost in braking
Its component cost is less
The electromagnetic brakes have been used as supplementary retardation equipment in addition to the regular friction brake on heavy vehicles
DISADVANTAGES
The installation of an electromagnetic brake is very difficult
Not enough space between gearbox and rear axle
Need a separate compressor
It cannot use grease or oil
Maintenance of the equipment components such as hoses, valves has to done periodically
APPLICATIONS
Used in crane control system
Used in winch controlling
Used in lift controlling
Used in automatic purpose