Plate clutch pdf

When it is properly operated it will prevent jerky motion or jerks on the vehicle. It is disengaged When we want to start the engine. Clutches are useful in devices with two rotating shafts one will act as a driver and the other is a driven shaft.

For example, In drill one shaft is driven by a motor, and the other driving a drill chuck. It connects the two shafts so that they can either be locked together and rotate at the same speed and also at different speeds according to our needs. If we want to stop the car without affecting the engine the wheel needs to be disconnected from the engine for that the clutch allows us to smoothly engage a rotating engine to a nonspinning of the engine by controlling the slipping between them.

Friction plays an important role in the principle of the clutch. The flywheel is used to store energy when there is excess energy and give it back to the system when we required it. The Flywheel mounted on the crankshaft keeps on running as long as the engine keeps running. The Flywheel contains a friction surface also known as a friction disc which is bolted to the outer side of the Flywheel.

Single or multiple discs lined with friction material having a high coefficient of friction are Mounted on the driven shaft. Friction provides the necessary ability to change the direction of the driving and driven shaft. The purposes that it will act as a link between engine and gearbox mainly it will transmit the torque obtained from the engine to the gearbox. Another friction disc is bolted to pressure plates.

The spring used are diaphragm springs. The operation of spring is obtained with the help of levers. The release lever will light the force which is held on the spring when the clutch is disengaged. Transmits the movement of the clutch linkage to the pressure plate is usually a ball or roller type bearing and Self—centering to compensate for variations alignment.

A clutch linkage mechanism uses levers and rods to transfer motion from the pedal to the fork when the pedal is pressed, the pushrod will push the bell crank and it reverses the forward movement of the pedal. The bell crank is connected to the release rod. The release rod transfers the bell crank movement to the fork. It also provides how the adjustment of the clutch takes place. Clutch is used to attach two moving shafts that are moving at different speeds. This enables us to disengage the power of the engine and drive off smoothly with the engine.

A multi-plate clutch used in automobiles and machinery where high torque output is required. It is a type of clutch that transmits more power from the engine to the transmission shaft of an automobile vehicle and also, makes up for the torque loss due to slippage.

Multiple clutches consist of more than three discs or plates so that they can provide more torque output. Multi-plate clutches are used in heavy vehicles with racing cars and motorcycles for transmitting high torque. It may be used where the space is very limited. These clutches have high heat resistance and are hard to break and those are durable enough.

The plates are reliable but not that good for high-speed operation. Organic Materials: These are the most common type of materials that we used the most. These materials clutches are capable of all kinds of usage in a variety of vehicles such as size.

This material contains high copper content because that it can transfer heat effectively. Ceramic Materials: These types of clutches contain organic and inorganic materials at the same time which include glass, rubber, Kevlar, and carbon materials.

In this clutch, the coefficient of the friction is relatively high which lies between 0. In most the intense applications, this type of clutch is used, like in trucks and racing cars. The components of all the clutches used in automobile vehicles are almost the same. Spring Type Multi-Plates Clutching the clutch, a cover attaches with a flywheel of engine use inside which the multiple clutch plates, pressure plates, thrust bearing, etc.

The clutch plates place over each other and mount over a splined shaft. It is the modified version of the spring-type multi-plates clutch. In which the thrust springs places circularly from the spring type clutch replace with a special crown-shape finger type spring called diaphragm spring. A plate clutch consists of a flat driven plate gripped between a driving plate and presser plate so that there are two active driving surfaces, each having an inner diameter mm and an outer diameter mm.

An electric motor drives a co-axial rotor through a single-plate clutch, which has two pairs of driving surfaces, each of mm external and mm internal diameter, the total spring load pressing the plates together is N. The mass of the motor armature and shaft is kg and its radius of gyration is mm; the rotor has a mass of kg and its radius of gyration is mm.

Determine the final speed of the motor and rotor, and find the time taken to reach that speed and the kinetic energy lost during the period of slipping. How long would slipping continue if a constant torque of 50Nm were maintained on the armature shaft? The countershaft has a total moment of inertia of 8. If the time taken for the countershaft to attain full speed from rest is 6s, determine the axial spring force in the clutch, and also the energy dissipated due to clutch slip.

Assume uniform wear. Answer: N; 1. The axial spring force operating a single-plate clutch is N. To each side of the plate is attached a ring of friction material having an inner diameter of mm and an outer diameter of mm.

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