Single Plate Clutch in Mechanical Engineering, Lecture notes of Mechanical Engineering

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Dynamics of Machinery

UNIT II

II.2 CLUTCHES

Presented By: N V S G SASIKIRAN Assistant Professor Mechancial Engineering Lecture Details: GIET – (A) CLUTCHES Mechanical Engineering, II Year – II Sem.

Syllabus

UNIT–I : Precession

UNIT–II : Friction, Clutches, Brakes And Dynamometers

UNIT–III : Turning Moment Diagrams, Governers

UNIT–IV: Balancing

UNIT–V : Vibrations

Topics in Unit-II

- Friction : Inclined plane, friction of screw and nuts, pivot and collar, uniform pressure, uniform wear, friction circle and friction axis: lubricated surfaces, boundary friction, film lubrication - Clutches : Friction clutches- single disc or plate clutch, multiple disc clutch, cone clutch,centrifugal clutch. - Brakes And Dynamometers : Single block brakes, internal expanding brake, band brake of vehicle. General description and operation of dynamometers: Prony, Rope brake, Epicyclic,Bevis Gibson and belt transmission.

Clutches: Friction clutches

• A friction clutch has its principal application in the transmission of power

of shafts and machines which must be started and stopped frequently.

• Its application is also found in cases in which power is to be delivered to

machines partially or fully loaded.

• The force of friction is used to start the driven shaft from rest and

gradually brings it up to the proper speed without excessive slipping of the friction surfaces.

• In automobiles, friction clutch is used to connect the engine to the driven

shaft.