BRAKES:-
Brake is a device which are used for slowdown or completely stop the motion of any moving element by applying artificial frictional resistance.
Types of brakes:
1. Block brake.
2. Band brake.
3. Internal expanding brake(drum brake).
4. Disc brake.
Internal Expanding Brake(Drum brake):-
Figure shows the schymetial diagram of internal expanding brake.
1. It consisting of 2 shoes called brake.The outer surface of brake shoe are provided with brake pads in order to retard the motion of brake drum.
2. The lower end of the shoes are pioted by using hinge pin and upper end of the brake shoes are connected to the piston of the hinge cylinder.
3. The wheel cylinder is consisting of 2 piston and cylinder mechanism.
WORKING:
1. During operation, when brake pedal is press downward for applying the brake. The piston in master cylinder moves the piston in forward direction.
2. Due to which the brake oil at high pressure enters in the wheel cylinder. Hence , the piston in wheel cylinder forces outward direction.
3. Due to which the brake shoes are comes in the contact with the rotating brake drum.
4. And the brake pads provided on the outer surface of brake shoes retards the motion of rotating brake drum.
When force on brake pedal is remove , because of the retracting spring the brake shoes return to it's original position. brake
Brake is a device which are used for slowdown or completely stop the motion of any moving element by applying artificial frictional resistance.
Types of brakes:
1. Block brake.
2. Band brake.
3. Internal expanding brake(drum brake).
4. Disc brake.
Internal Expanding Brake(Drum brake):-
1. It consisting of 2 shoes called brake.The outer surface of brake shoe are provided with brake pads in order to retard the motion of brake drum.
2. The lower end of the shoes are pioted by using hinge pin and upper end of the brake shoes are connected to the piston of the hinge cylinder.
3. The wheel cylinder is consisting of 2 piston and cylinder mechanism.
WORKING:
1. During operation, when brake pedal is press downward for applying the brake. The piston in master cylinder moves the piston in forward direction.
2. Due to which the brake oil at high pressure enters in the wheel cylinder. Hence , the piston in wheel cylinder forces outward direction.
3. Due to which the brake shoes are comes in the contact with the rotating brake drum.
4. And the brake pads provided on the outer surface of brake shoes retards the motion of rotating brake drum.
