Pdf design and analysis of an automotive single plate clutch. Multi plate wet clutch is a friction clutch with multiple friction plates. The friction clutches work on the fact that friction is. At the end of the article you can easily download whole articles in pdf. Clutch plate of cast iron is ideally used as a result of its high compressive strength and low ductility 5. Study the design aspects and function of wet type multiplate. Multipledisc clutch all industrial manufacturers videos. Spring type multi plate clutch in this type of clutch a cover attached with the flywheel of the engine is used inside which the multiple clutch plates, pressure plate,thrust bearing etc. Friction takes place in the engine by the clutch plates. Construction and working of a multi plate clutch various. Allows automatic transmission with smooth engagement allows light and compact clutch design. Modelling and analysis of multiplate clutch international journal.
Fem analysis of wet multi plate clutch by varying friction. A clamp load of 33 kn is normal for a single plate 430. Then, for a plate clutch, the maximum torque transmitted is t nwrm problems 1. Friction discs multiple friction discs having high coefficient of friction are bolted to pressure plates as well as mounted on the output shaft. What is multiplate clutch main parts, types and working. The major types of friction clutches are plate clutch, cone clutch, centrifugal clutch. Flat clutch plates the diagram shows a basic flat clutch. Structural analysis of the clutch was performed by using.
For comparative studies, the same clutch en g agement as in 5. Clutch plate friction apparatuslabmechet16ay01 weights the apparatus is illustrated consists of flat disc of leather against which a clutch plate is loaded. The multiple plate clutch is used in some types of epicycle gearboxes. Modeling, and fea of multiplate clutches by varying materials for. The clutch plate is a thin disctype metallic plate that has both side friction linings. There are commonly four type cone clutch, single plate clutch, multi plate clutch. Single plate clutch this is the torque transmitted by single plate due to friction considering uniform wear theory. In the clutch, a cover attaches with a flywheel of engine use inside which the multiple clutch plates, pressure plate, thrust bearing, etc. Clutches friction clutches, design considerations, multiple disc clutches, cone clutch, centrifugal clutch. Pdf on jan 1, 2018, seyoum kebede and others published modeling, and fea of multi plate clutches by varying materials for optimum torque transfer. Finite element analysis on friction plate of a wet multiple. The friction plate or the clutch plate is disengaged with the movement of the pressure plate. Here in the single plate clutch, only one friction plate or clutch plate is used to transmit the power when there is an engagement.
Single plate clutch parts, diagram, working, advantages. The following type of arrangement is used in synchromesh type gear box. Introduction clutch is a mechanism for transmitting rotation, which can. Solid mechanics tutorial friction clutches this work. The facing must survive occasional severe events, while affecting friction properties, struc.
Apr 15, 2018 here we study about single plate clutch. Mechanical multiple disc maxitorq clutch, brake manufacturer. Single plate clutch torque transmitted by single plate clutch can be obtain by integrating the equation 4 within the limit r2 to r1 we get, r1 r2 r1 r2 28. In multi disk clutch, due to oil cooling, coefficient of friction. The engagement and disengagement of the clutch can be. Single plate and multiple plates are working in the same principle although the difference is that a single plate clutch is used in lightweight cars whereas multiple plate clutch is used in heavyduty cars. A single plate clutch b cone clutch c dog clutch d centrifugal clutch 9. Thousands of hours of research and dynamometer testing are applied to ensure that our friction product solutions perform to their utmost in every application. The housing is keyed to the driven shaft by a sunk key. A multiple plate clutch provides a very compact, yet a high friction coupling between the engine and the gearbox.
During the engaged state of the clutch, the fingers like fins of the diaphragm clutch will be in floating type mode due to which the multiple clutch plates which have friction lining on the other end attached will make continuous frictional contact with the flywheel results in power between the engine flywheel and the driving shaft. Single plate clutches are one of the most commonly used types of clutches. The oil flow rate for the internal lubrication of friction type clutches and brakes should be approximately 0. Wet clutches in general have multiple clutch plates in cars and have a supply of oil to lubricate and cool the components.
Pdf on jan 1, 2018, seyoum kebede and others published modeling, and fea of multiplate clutches by varying materials for optimum torque transfer. Multiplate clutch, friction material, sfmc2, ansys, catia v5. Dfeqfe dualquad plate clutch elements 43 both dfe and qfe models have four sizes and two friction coefficients. On this multiple plate friction clutch, there is a hub which has a plurality of fingers which extend radially and are distributed over the periphery, and in which a corresponding clutch plate with a matching contour is engaged to transmit torque. Chapter 10 automotive clutches, transmissions, and transaxles. They are used for wet multiple disc clutches in automatic transmissions. Finite element analysis on friction plate of a wet.
A set of different clutch plates will be used and the results compared with two different methods of calculation. Both sides of each plate are faced with friction material, so that a single plate clutch has two pairs of driving faces in contact. Components, working principle, advantages, disadvantages, applications pdf electromagnetic clutch works with the help of electrical winding embedded in the flywheel. Definition of functions a brake is defined as a machine element used to control the motion. It has only one clutch plate, mounted on the splines of the clutch shaft.
The friction material used for the clutch plate embrace asbestos, in. An excessive flow rate will increase the engagement time and, when the energy dissipation is low, can lead to a reduction of the s tatic torque. A torque is applied to the effort pulley by dead weight using a spreader beam and two load cords. Design of wet multiple plate clutch is carried out by using catia design. Moreover, when the clutch plate is released by the driver then the pressure plate again comes into its origin and clutch becomes engaged. Multiple plate friction clutch with axial stop fichtel. The plates are forced together by a set of coil springs or a diaphragm spring plate when the clutch is engaged. Friction clutch can be engaged and disengaged when the machine is running since they have no jaw or teeth. The clutch plates place over each other and mount over a splined shaft. In a multi plate clutch, the number of frictional linings and the metal plates is. The driving discs are splined to the driving shaft so that they are free to slip along the shaft but must rotate with it.
The doubledisc clutch is substantially the same as the singledisc, except that another driven disc and an intermediate driving plate are added. Pdf flatplate friction clutches and thrust bearings. Torque transmitted by multiplate wet clutches in relation to. Jun 11, 2017 single plate clutch torque transmitted by single plate clutch can be obtain by integrating the equation 4 within the limit r2 to r1 we get, r1 r2 r1 r2 28. A dry clutch, as the name implies, is not bathed in liquid and uses friction to. On this multiple plate friction clutch, there is a hub which has a plurality of fingers which extend radially and are distributed over the periphery, and in which a corresponding clutch plate with a.
The amount of frictional force that generates within the clutch plate due to the contact that takes place between the friction lining which is mounted on the clutch plate. Current complex clutch des igns allow for a clutch to last for the entire service life of a vehicle. Working animation necessity layout principlenamaskar dosto aj hum is video me bat karenge single plate clutch ke bare maiaj i. Clutch plate clutch plates are made of cast iron or high carbon steels with a splined hub and a round metal plate lined with friction lining material. Raybestos powertrain premium quality friction clutch plates are designed, manufactured and tested with attention to every detail, from the production of raw materials to final assembly. The object of the experiments is to investigate the behavior of flat clutch plates. Design and structural analysis of single plate friction clutch. Single plate, dry clutch is among the popular type of clutches in use. Design of wet multiple plate clutch is carried out by using catia design software and finite element analysis is carried out by using ansys v11 software. Friction materials used are cork and copper powder metal.
The clutch plate is mounted on a hub which is splined from inside and is thus free to slide over the gearbox shaft. Bonded plate in for reline structural integrity intact riveted plate in for reline weakened structural integrity damaged riveted plate. Multiple drilled holes in metal surface structurally weaken the integrity of the clutch plate of brake band. Single plate friction clutch the parts of a single plate clutch can be seen below. The pressure plate is fixed on the flywheel through the pressure plate is fixed on the. The apparatus includes a housing, a friction pack including at least one pair of interacting surfaces operable to transfer torque, a first belleville spring contacting a first region of the plate and contacting a first region of the housing, and a second belleville spring contacting a second region of the plate and contacting a second region of the. Investigate frictional behavior of flat clutch plates using clutch plate friction apparatus. The flywheel is mounted on the crankshaft, and rotates with it. The clutch plate is secured by screws to the effort pulley. The largesized support of the drive shaft in the clutch casing permits the power to be output via flexible couplings, universal joints or belt drives. A multi plate clutch is to transmit 12kw at 1500revmin.
The frictional surface will provide the necessary torque to transmit. Us20070261932a1 friction clutch with multiple belleville. The main parts of the spring type multi plate clutch are clutch plates, pressure plates, clutch pedals, friction lines, thrust spring, inner splined sleeves, flywheel, and friction discs. The number of pairs of friction surfaces in contact are more than two. The primary object of the invention is to provide an improved adjusting nut and pressure plate assembly for use in connection with a friction clutch of the multiple disc type and comprising two cooperating annular plates or flanges, separated by a sereies.
They are used in high torque situations where friction levels would be. Assuming uniform wear theory, calculate the power transmitting capacity of the clutch at 750 rpm. Planox multi plate friction clutch desch antriebstechnik. In multi disk clutch, due to oil cooling, coefficient of friction decrease. Structural and thermal analysis is done on the wet friction plates to verify the strength. Multi plate clutches as the name suggests, consists of multiple plates or friction discs and work similarly in the above fashion. The number of pairs of friction surfaces in contact are two. Pdf on apr 19, 2017, christoph gradwohl and others published. Provides smoother shifting and multiple spring pressure options. Pressure plates are plates mounted on a splined shaft so that they can slide back and forth. The clutch plates feature a bronze or steel friction. The diaphragm multi plate clutch is made of the same parts as of the spring type multi plate clutch, excluding the thrust spring. As name suggest a this clutch consists of only one clutch plate with both side friction lining frictional surface.
A single plate clutch is defined as a type of friction clutch, which is made of a single clutch plate. Optimization of multi plate friction clutch for maximum torque. Material used for inner disc is steel and outer disc is bronze. The coefficient of friction is high in multi disk plate clutch. Multi disk plate clutches which are compact are used. Carefully read through this installation manual before installing the multi plate friction clutch pd. It consists of two or more number of clutch plates. The multi plate clutch is a special type of clutch that can produce high torque. More focus on design of the friction plates and the selection of material. Under the discclutches there are the multiple disc. The clutch is a mechanical device, which is used to connect or. The complete clutch, including the bearing, is installed in the clutch bell housing, which forms one unit with the engine after it is attached.
More the number of plates more the torque transmitting capacity. A multi plate clutch consists of several friction plates arranged concentrically and is sometimes used in order to reduce the diameter of the clutch or to provide different stages of slippage for example in a drag racing car to control the rate at which the engines torque is transferred to the wheels during acceleration from a standing start. Clutch plate friction apparatuslabmechet16ay01 weights the. Pdf dynamic simulation of multiplate clutches for automotive. Friction material exposes rivet head and leads to exposed rivets which can core or gouge. Investigating behaviour of multiclutch plate frictional materials. Friction plate, clutch, composite material, structural analysis, and thermal analysis. The driven discs drive the housing by means of bolts along which they are free to slide. The entire maxitorq line of carlyle johnson clutches and brakes incorporate long wearing multiple disc clutch plates. A plate clutch consists of one pair of contacting surfaces. Multiple disc offer more area to be in contact with each other.
Multi plate clutch, axial force loss, friction models, static calculation. The clutch plates feature a bronze or steel friction surface for added life, superior. Includes steel hub, billet pressure plate, clutch plates, and 3 different sets of springs. As compared to single plate clutches, these are smooth and easy to operate due to their assembly of friction surfaces contact. Technical information clutch plates, clutches and brakes. Mounting and operating instructions multiplate friction clutches pd. Study the design aspects and function of wet type multi. It is a type of friction clutch in which power is transmitted by means of friction between the contact surface usually called clutch plates. A wettype multiple disc clutch in which a clutch plate set having a plurality of friction plates and a plurality of separator plates alternately provided therein is interposed between a clutch case and a clutch hub, an oil pressure piston serving to fasten said clutch plate set is slidably retained in a cylinder chamber formed between an outer cylindrical member and an inner cylindrical. In other words, for a given torque capacity, the radial size of the multi plate clutch is smaller than that of a single plate clutch, resulting in compact construction. Multi plate clutch applications as there are more number of connecting surfaces in a multi plate clutch, the torque transmitting capacity of the multi plate clutch is higher. Otherwise when clutch plate is released for gear changing, clutch plate will keep on. Innovative clutch facing materials schaeffler group.
A fluid clutch b centrifugal clutch c cone clutch d disc clutch 8. One type of plate has lugs on its inner diameter that key it to the engine crankshaft, while the other type of plate has lugs on its outer diameter that key it to a basket that turns the transmission input shaft. Smooth engagement and minimum shock during the engagement. The pressure plate creates pressure on clutch plates to maintain proper contact between the surfaces of flywheel and clutch plate by means of spring which are attached to it. Friction plates use highperformance friction paper and are packed alternately with separator plates. Naga karna and tippa bhimasankara rao 3 has performed the static analysis on friction clutch plate by using finite element. The clutch that you will encounter the most is the singledisc type figure 101. The parts of a single plate clutch can be seen below. Static structural analysis of multiplate clutch with.
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