Motor:-

Motor convert electrical energy to mechanical energy

Engine

Engine convert the chemical energy to the mechanical energy

Advantages of motor

1-Low cost

2-Small size

3-Long life

4-Very low noise

5-Automatic and Remote Start

Disadvantages of motor

1-No speed control

2-Protability

Use of Magnetic induction in motor:-

1-Like poles repel

2-Opposite Poles Attract

Parts of motor

1-Enclosure

2-Stator

3-Rotor

4-Bearings

5-Conduit Box

6-Eye bolt

1-Enclosure:-

Motor protects

Holds are the parts together

Motor save to the internal Enviroment

2-Stator Of the motor

Stator are made by cores cores are thin section iron insuleted with copper wires form one or more pairs of magnetic poles

3-Rotor of motor

Rotating part of the motor this part rotating of motor are stator.stator are the induecd the magnatic filed on to the rotor to push away form the stator field

Wound Rotor of the Motor

the older motor are desigend to the the motor operate is the variable speed

Advantages of wound rotor of the motor

Speed control of motor

High starting torque the motor

motor starting current are very low

Disadvantages of wound rotor motor

very Expensive to install the motor

High Maintenance

Low Efficiency

Bearings

There are types of bearings used in the motor

Sleeve Bearings

Ball ( Roller ) Bearings

Sleeve Bearings

On most motor standard

very Quiet

Only Oil Lubricated

Ball ( Roller ) Bearings

This bearing are the Support the shaft in any postion

This bearing are the Grease Lubricated

This Bearing are sealed no required any mantenance

Other Parts

Condyit Box

In this part the point of connection of electrical power to the motor

Eye Bolt

Eye bolt are used to very motors to loade the crane

Motor Power

Output power

horse Power

Amount of Power