FRICTION IN MACHINE ELEMENTS
Friction in Screw threads – Friction clutch – Single Plate, Multi plate and Cone clutch – Torque and Efficiency Calculations. Brakes – types and applications – Conditions for self-locking and Self Energizing brakes.
6. INTRODUCTION -clutch
• A clutch is a mechanical device that engages
and disengages the power transmission,
especially from driving shaft to driven shaft.
11. • Power can be transmitted from one shaft to
another shaft either by flexible or non
flexible type of machine elements.
• Flexible : belts, ropes and chains
• Non flexible: cam, gears, clutches, coupling
• When the distance between the shaft is
large, then belt, ropes or chain are used.
• For smaller distance gear are used
23. BRAKES
• It’s a mechanical device by means of which
motion of a body is retarded for slowing down
(or) to bring it to rest by applying artificial
frictional resistance