Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. Get bolted joint engineering fundamentals applications pdf file for free on our ebook library pdf file. Cotter joint article about cotter joint by the free dictionary. A cotter is a flat wedge shaped piece of rectangular cross section and its width is tapered either on one side or on both sides from one end to another.
The locking device may be a taper pin or a set screw used on the lower end of the cotter. Nptel syllabus advanced electric drives video course course outline the first course on electric drives usually introduces the concept of control of electric motors for various types of mechanical loads. A cotter joint is a temporary fastening and is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. Cotter joints may be used in areas subject to corrosion during operation, resulting in difficulty in turning rusty bolts and nuts of threaded connections. Cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. Synthetic soldiers robots are increasingly finding their way into the military. Cotter a cotter is a flat wedge shaped piece of rectangular cross section and its width is tapered either on one side or on.
Computer integrated manufacturing systems nptel links for various lectures uniti group technology and computer aided process planning. Join the grabcad community today to gain access and download. Design of machine elements nptel online videos, courses. Nptel syllabus design of machine elements i video course module1 lecture1 design philosophy designa decisionmaking process machine design design of machine elements design principle lecture2 design procedure types and considerations. Cotter joints can be quickly assembled as well as disassembled. These joints may be subjected to tensile or compressive forces along the axes of the rods. Design of cotter joint free download as powerpoint presentation. Cotter and knuckle joints understanding engineers gallery. It is usually used in connecting a piston rod to the cross head of a reciprocating steam engine, a piston rod and its extension as a tail or pump rod, strap end of connecting rod. Here we are going to use the socket and spigot type joint. Rods may be of different cross sections like circular or square. How to download all of the lectures for a course in nptel quora. The slots in the rods and sleeve are made slightly wider.
In a sleeve and cotter joint, the cut slots are always made a little bit wider than the width of the cotters in order to promote wedging action of the cotters over the slots. There is no relative angular movement between rods. Lecture series on design of machine elements i by prof. Mar 01, 2016 video lecture on design procedure of cotter joint, socket and spigot joint from design of cotter joint, knuckle joint,levers and offset links chapter of design of machine for mechanical. Machine drawing pdf notes md notes pdf smartzworld. Mechanical joints widetolerance couplings and flange adaptors 10.
Cotter joint article about cotter joint by the free. Building materials and construction 140602 engineering geology 140604. Cotter joint a detachable joint that is fastened or adjusted by a wedge. Mechanical joints may be temporary or permanent, most types are designed to be disassembled. Cotter is a flat wedge shaped part which is used to connect two rods which transmit the forcemotion but without rotation. Lesson 2 cotter and knuckle joint lesson 3 threaded fasteners lesson 4. Cut section of socket and spigot joint 3272012 2 hareesha n g, dsce, blore78. The cross, which is the connecting link the arms of the cross are at right angles. Web courses are available in html format, pdf downloads with illustration, animation 2d, 3d, lab demos, video clippings course name. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. This index has been provided to refer the nptel web and video course contents. Universal joint is a positive mechanical joint used for connecting shafts, whose axes are inclined at an angle to each other. Spigot is formed on one of the rods and socket is formed on the other. To evaluate the following expression, which is a better order of operation.
Please wash your hands and practise social distancing. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses. This website provides free medical books download the medical book. A cotter is a flat wedge shaped piece of rectangular crosssection and its width is tapered either on one side or both sides from one end to another for an easy adjustment. Appropriate slots are cut in the sleeve and in the cylindrical rods. Joint structure and function 5th edition pdf for free. A cotter joint is a simple and compact connection and is easily assembled and disassembled. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online. Sleeve cotter joint pdf the working of the cotter andsleeve and cotter and gib are shown below. Open internet explorer and open our institute website. This is the simplest form of cotter joint used for fastening the two circular rods.
Cotter joints use a transverse wedge with cylindrical or conical surfaces, and a longitudinal wedge. Therefore, the joints are one of the very important members in a design. In the first course, mainly the dc motor control both steady state and dynamic, and steady state torque. However, where space is too small for an arrowhead, oblique stroke or a dot may be employed.
The torque is transmitted from the driving shaft to the driven shaft through the cross. A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another. Jul 17, 2016 a cotter is a flat wedgeshaped piece of steel which is used to connect rigidly two rods which transmit motion in the axial direction tensile or compressive forces without rotation. The ends of the two rods are inserted from opposite sides in a cylindrical sleeve or steel box. Video lecture on design procedure of cotter joint, socket and spigot joint from design of cotter joint, knuckle joint,levers and offset links. Scribd is the worlds largest social reading and publishing site. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. The low chamfer angle of the wedge assures tightness of the joint and provides selfbraking, which prevents the wedge from falling out. Most mechanical joints are designed to allow relative movement of these mechanical parts of the machine in one degree of freedom, and restrict movement in one or more others. Video lecture on design procedure of cotter joint, socket and spigot joint from design of cotter joint, knuckle joint,levers and offset links chapter of design of machine for mechanical. It is also known as universal coupling, ujoint, cardan joint and hookes joint. Nov 11, 2009 cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. The taper varies from 1 in 48 to 1 in 24 and it may be increased up to 1 in 8, if a locking device is provided.
Chakraborty, department of mechanical engineering, iit kharagpur. Aug 31, 2017 automobile engineering83 about us types of gear pdf, gib and cotter joint, socket and spigot joint, classification of brakes, types of fire in hindi, application of cotter joint, different types of brakes and their applications, type of fire in hindi, arduino projects ideas, mechanical drill, knuckle joint application, application of knuckle. Aug 27, 2018 so, you want to download all of the video lectures for a course in nptel. Joshi, department of mechanical engineering, indian institute of technology, bombay, powai, mumbai 400 076 india.
The grabcad library offers millions of free cad designs, cad files, and 3d models. Cotter joint is widely used to connect the piston rod and crosshead of a steam engine, as a. How to download all of the lectures for a course in nptel. Machine drawing notes pdf md pdf notes book starts with the topics. Stochastic design principles lecture3 engineering materials classification and properties lecture4. Sleeve cotter joint pdf the working of the cotterandsleeve and cotterand gib are shown below. This website provides free medical books stay safe and healthy. A design procedure of cotter joint cotter joint introduction before going into detailed steps to design and find dimensions of cotter joint, it is necessary to understand clearly the various components, their functions and assembly of cotter joint. Cotter joint is widely used to connect the piston rod and crosshead of a steam engine, as a joint between the piston rod and the tailor pump rod, foundation bolt etc. Dimensional measurements at the required level of accuracy are the essential link between the designers intent and a delivered product.
Here you can download the free lecture notes of machine drawing pdf notes md notes pdf materials with multiple file links to download. Depending on the type of application, the shapes of the parts of universal joint may vary. Two cotters are inserted through the slots on each rod end. Sleeve and cotter joint is a type of joint used to typically connect two similar coaxial cylindrical rods. A cotter is driven tightly through the slots in the rods which are kept slightly mis aligned. What is the difference between cotter joint answer sahil knuckle joint is used to connect two rods whose axes either coincide or intersect and lie in one plane, which are subjected to transmit axial tensile force on other hand cotter joint is used to connect two coaxial rods, which are subjected to either axial force or axial compressive. Engineering design, cotter joint, key joint and its analysis. It contains a sleeve and two wedge shaped tapered cotters. Spigot and socket jointcotter joint rods, having axial tensile or compressive forces are connected by cotter joints. Study material from nptel civil engineering department. Design procedure of cotter joint, socket and spigot joint design.
Nptel, an elearning initiative by the 7 indian institutes of technology and the indian institute of science with the support of the mhrd, govt. Civil engineering department civil engineering department. Mar 27, 2012 cotter and knuckle joints hareesha n g dept. The socket and the spigot are provided with a narrow rectangular slot. Following are the three commonly used cotter joints to connect two rods by a cotter. A cotter is a flat wedgeshaped piece of steel which is used to connect rigidly two rods which transmit motion in the axial direction tensile or compressive forces without rotation. So, you want to download all of the video lectures for a course in nptel. Metrology metrology is the science of measurement dimensional metrology is that branch of metrology which deals with measurement of dimensions of a part or workpiece lengths, angles, etc. What are the practical application of cotter joint. A socket is formed by expanding the end of one rod in which the spigotend of the other rod is inserted. Design of cotter joint bending strength of materials.
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