MULTIPLATE CLUTCH

-ThaRRuN [ 14m658 ]

What is clutch?

• A Clutch is a machine member used to connect the driving shaft to a driven shaft, so that the driven shaft may be started or stopped at will, without stopping the driving shaft.

Function Of Clutch Clutch is used to transmit power from driven shaft to

driving shaft. In automobiles, where vehicle can be stopped for a

while or to change the gear, the requirement is that the driven shaft should stop but the engine should run naturally under the no load condition.

This is achieved by using clutch mounted between engine shaft and gearbox shaft and which is operated by a lever.

Multiplate Clutch

• Multiplate clutch is used when large torque is to be transmitted e.g. motor cars and machine tools

• Multiplate clutch is used when compact construction is required e.g. scooters and motor cycles.

Multiplate clutch

• To overcome this problem the plates are fitted with small springs to push the plates apart.

• Generally wet type clutch is used in automatic gearboxes, and is operated by a piston governed by hydraulic pressure.

• Wet type clutches are usually used in lates motorcycles.

•For the clutch disengagement, the end plate is withdrawn to compress the springs and release the other plates. •In this arrangement it is difficult to ensure the disengagement of all plates.

• The several advantages of the single-plate clutch, specifically its ability to completely disengage the drive.

• However, a multi-plate type of clutch finds a use in automatic gearboxes.

Multiplate Clutch

Notes:• In case of new clutch ,the intensity of

pressure is uniform along the surface of clutch. [ Uniform Pressure theory is used ]

• But in case of old clutch - Uniform wear theory is more correct.

• In actual practice, usually the theory of uniform wear is used in analysis of clutch.

In mutilate disc clutch no of disc on driving shaft no of disc on driven shaft

So no. of pairs in contact,

2n1n

1nnn 21

Thank you!- ThaRRuN [ 14M658 ]