CLUTCHES AND THERE PARTS OF CLUTCHES PLATES PPT.pptx

CLUTCHES AND THERE PARTS OF CLUTCHES PLATES PPT.pptx

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  G. H. RAISONICOLLEGE OF ENGINEERING Department of Mechanical Engineering (session 2021-2022) TAE-I Single and Multiple Plate clutches Guided by A Choudhari Year/Semester :– 3rd year/5th semester Submitted by :– Aman Nagpure Roll No.:- 02
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  Presentation of Clutches WHATIS CLUTCH PURPOSE PRINCIPLE OF CLUTCH MAIN PARTS OF A CLUTCH TYPES OF CLUTCH SINGLE PLATE CLUTCH MULTIPLE PLATE CLUTCH
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  WHAT IS ACLUTCH Clutch • The clutch plate is the driving member of the clutch and is gripped between the flywheel and the pressure plate. It is mounted on the clutch shaft through the splines. When it is gripped, rotates the clutch shaft and the power is transmitted from the engine to the transmission through the clutch.
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  PURPOSE A Clutch isdesigned with the following requirements.  Allow the vehicle to come to stop while a transmission remain in gear.  Allow the driver to smoothly take off from a dead stop.  Allow the driver to smoothly change gears.  Must be able to transmit power and torque without slipping.
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  PRINCIPLE OF CLUTCH The clutch works on the principles of friction:- 1. when two friction surfaces are bought in contact with each other and pressed they are united due to the friction between them. If one is revolved, the other will also revolve. 2. The friction between the two surfaces depends upon the area of the surfaces, the pressure applied upon them and coefficient of friction of the surface materials, The two surfaces can be separated and brought into contact when required. 3. One surface is considered as a driving member and the other as a driven number. The driving member is kept rotating when the driven member is brought in contact with the driving member, it also starts rotating. When the driven member is separated from the driving member it stops revolving. This is how a clutch operates. .
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  Main Parts ofClutch • It consist of o A driving member o A driven member o An operating member • The driving member has a flywheel which is mounted on the engine crankshaft. A disc is bolted to flywheel which is know as pressure plate or driving disc. • A driven member is a disc called clutch plate. This plate can slide freely to and for on clutch plate. • A operating member consist of pedal or lever which can be pressed to disengage the driving and driven plate.
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  CLUTCHES : BASICWORKING
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  CLASSIFICATION OF CLUTCH
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  COMPONENTS OF ACLUTCH (ASSEMBLY) Primary Component  Flywheel  Clutch Disc  Pressure Plate  Release Bearing Secondary Component  Pilot Bearing  Release Bearing  Fork Slave  Cylinder
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  SINGLE PLATE CLUTCH •There are two main parts of the single plate clutch. One is attached to the driving shaft, and the other to the driven shaft. These shafts are parallel and concentric; one shaft is fixed to its housing, while the other is splined for axial movement. • The advantage of using a single clutch is that it is easier to change gears than a cone clutch, as there is less pedal movement. There is no possibility of binding or joining cones in single plate clutches, so they are more reliable than cone clutches. Let’s discuss this in detail.
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  COMPONENT OF SINGLEPLATE CLUTCH  Components of Single Plate Clutch :- 1. Flywheel 2. Pressure plate 3. Friction lining 4. Clutch plate 5. Springs 6. Pilot bearing 7. Clutch cover 8. Release lever 9. Clutch shaft 10. Fulcrum pin
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  WORKING OF SINGLEPLATE CLUTCH  In a single plate clutch, the flywheel is mounted on the driver shaft. The clutch plate with a splined hub is mounted at one end of the splined driven shaft. It is free to slide axially on the driven shaft as well as rotate along the driven shaft.  There is friction lining on both sides of this clutch plate. Two friction linings of special abrasive material are riveted to the flywheel and pressure plate. A pressure plate is made to rotate internally to move freely on the driven shaft. There is also freedom for the pressure plate to slide axially.  Several springs are attached around the clutch to apply force to the pressure plate, which presses the clutch plate firmly against the flywheel when the clutch is engaged. The clutch is engaged, and the power can be transferred from the driver shaft to the driven shaft.  If the driver depresses the pedal, the pressure plate moves to the left. Thus the pressure on the clutch plate does not work. Here the power from the drive shaft is not transmitted to the driven shaft.
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  PURPOSES OF SINGLEPLATE CLUTCH  They are installed to engage and disengage the driver and driven shaft.  Their purpose is to connect or disconnect the engine to the rest of the transmission system without stopping the engine.  This disconnects the engine from the rest of the transmission system to put the vehicle in first gear to start the car comfortably.  The clutch disconnects the engine from the transmission system to change gear ratios while driving.  This helps to drive without jerks when starting the vehicle from a resting position or changing gear ratios.  In addition, it also facilitates gear shifting smoothly without noise and damage.  The primary function of the single plate clutch is to allow the engine to load slowly without jerking
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  MULTI-PLATE CLUTCH  Themulti-plate clutch is a special type of clutch that can produce high torque. It mainly transmits the power from one shaft to another shaft. One of them is the engine shaft and another one is the transmission shaft. Friction takes place in the engine by the clutch plates. This friction makes high torque.  Moreover, it can be said that in the automobiles or in pieces of machinery, where high torque is needed like in the gearbox of motorcycles, this multi-plate clutch can be used to assure the precision level of that machine.  The high amount of torque can be generated by the multi-plate clutch due to the number of plates.  Therefore, it can be asserted that if the numbers of plates are increased by the manufacturer then it can be possible to increase the amount of torque generation.
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  COMPONENTS MULTI-PLATE CLUTCH Component of Multi-plate clutch • Flywheel • Pressure Plate • Friction Disc • Clutch Paddle • Friction Lining • Thrust Spring • Inner Splined Sleeves • Diaphragm Spring
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  WORKING of Multi-plateClutch working principle of the multi-plate clutch :  Engage:  Engagement takes place in the engine when the driver pressed the clutch paddle.  Apart from that, it enhances the movements of the thrust springs.  The pressure can be given to give pressure to the pressure plates with the help of thrust springs.  Hence, the pressure plate tends to move forward  Along with that, the friction linings that are attached on the inner side of the pressure plate to make contact with the flywheel, start its action.  Disengage:  For disengaging the clutch and the engine of the vehicle, the driver has to press the clutch pedals as well as the fins of inner splined sleeves at first.  It enhances the thrust spring to move backward.  This thrust spring releases pressure from the pressure plates.  Hence, the pressure plate tends to move backward  As a result of removing the pressure from the flywheel, pressure plate and springs the clutch becomes disengaged.
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  PURPOSES OF MULTI-PLATECLUTCH It can be used in the pieces of machinery and automobiles where high power is required. It can be used in the motorcycle or high-speed racing cars due to the compact gearbox and high torque production. It can be used in ships, trucks, locomotive engines due to compact gearbox design. It is appropriate for heavyweight types of machinery like bulldozers, excavators, tanks and crawlers and others as the multi-plate clutch is heavy and produces high power. Due to that, the heavy pieces of machinery easily lift heavyweights.
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  DIFFERENCE BETWEEN SINGLEAND MULTI-PLATE CLUTCH Single Plate Clutch: A single plate clutch only has one clutch plate. This type of clutch is used in most cars. A single plate clutch is lighter and simpler than a multi-plate clutch. A single plate clutch will wear down more quickly. Single Plate Clutch Low-Cost and Efficient Multi-Plate Clutch: A multi-plate clutch has more than one clutch plate. This type of clutch is used in racing cars and other sports cars. A multi-plate clutch transmits more power. It also allows for quicker gear changes. Multi-plate clutches are expensive.
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  THANK YOU!