Socket and spigot cotter joints in a socket and spigot cotter joint, one end of the rods is provided with a socket type of end as. A cotter is a metallic strip of uniform thickness but tapers in width. Rods may be of different cross sections like circular or square. Design of socket and spigot cotter joint part number name of part 1 shaft or rod 2 socket 3 spigot 4 cotter 5 socket collar 6 spigot collar mr. The distribution of this bearing pressure will not be uniform, but it will be in. It includes the various applications of the joints and also the comparison of the joints. Permissible shear stress for the cotter material, and. Why the cotter in the cotter joint is kept as weakest part. Socket and spigot cotter joint is used to connect circular rods. Modeling and analysis of cotter joint ijert journal. Bolted joints design of bolts with prestresses design of joints under eccentric loading locking devices both of uniform strength, different seals. 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. Types of key and design, design of socket spigot cotter joint, sleeve and cotter joint, gib and cotter joint, design of.
Design of cotter joint socket and spigot joint it is used to connect two coaxial rods under the action of axial tensile or compressive loads. The woodru cylindrical disc having segment key is capable of tilting in a r curvature as the disc from which. The sliding rubber ring is installed using a soft soap lubricant. Knuckle joint, cotter joint and turn buckle the article contains the questions and answers related to the design of joints including knuckle joint, turn buckle and cotter joint. Unit v keys, cotters and knuckle joints design of keys stresses in keys cotter joints spigot and socket, sleeve and cotter, jib and cotter joints knuckle joints. A cotter is a rectangular cross section of uniform thickness and varying width with one of its longer sides. The end of one rod is forged in the shape of a socket and the other in the shape of a spigot refer fig 21. Cotter joint has mainly three components spigot, socket and cotter. The socket and spigot cotter joint is shown in fig. The construction of a cotter joint, used to connect two rods a and b is shown in fig.
The load is uniformly distributed over each part of the joint. Sleeve and cotter joint, socket and spigot joint and. Failure of cotter joint may causes accident, so it is necessary to design cotter joint to. Socket and spigot cotter joint and its design engineers. Short notes on machine design gradeupquestionimages. Design of machine membersi f the usual proportions of the gib width, w d 4.
The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. 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. Design procedure of cotter joint, socket and spigot joint. The end of the bar has a hole in it and it is called a lug. What are the practical application of cotter joint. Design of various types of riveted joints under different static. A socket is formed by expanding the end of one rod in which the spigot end of the other rod is inserted. Muttagi, slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Socket and spigot joint part design, assembly and drawing of all parts with solidworks.
Spigot is formed on one of the rods and socket is formed on the other. Muttagi, slideshare uses cookies to improve functionality and performance, and to provide. Types of cotter joints following are the three commonly used cotter joints to connect two rods by a cotter. Socket and spigot cotter joint and its design engineers gallery. A cotter joint is a temporary fastening and is used to connect rigidly two co. Joint between piston rod and crosshead of steam engine 2. Following are the three commonly used cotter joints to connect two rods by a cotter. 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 for an easy adjustment socket cotter spigot. The slots in the spigot rod and in socket are made slightly larger then the cotter with one side straight and the other side tapered. Cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces.
Designing and building furniture you have to consider a lot. See all design to learn to design and assemble the parts in diff ways and methods. Geometry of thread forms, terminology of screw threads and thread standards, specifications of steel bolts, initial. Sleeve and cotter joint, socket and spigot joint and knuckle joint drawn by r. Design of cotter joint cotter joint is also called as socket and spigot joint. In this type of joint, a sleeve or muff is used over the two rods and then two cotters one on each rod end are inserted in the holes provided for them in the sleeve and rods. In a socket and spigot cotter joint, one end of the rods say a is provided with a socket. The cotter passes through slots made in two coaxial parts and thus prevent the relative motion between them. Design of cotter joint bending strength of materials scribd. Spigot and socket joint cotter joint rods, having axial tensile or compressive forces are connected by cotter joints.
Material of two rods and cotter is steel 30 c8 s yt 400nmm2, s yc 2 s yt and s sy 0. Sometimes, a sleeve and cotter joint as shown in fig. This document is highly rated by mechanical engineering students and has been viewed 1592 times. The assembly of socket and spigot joint was created as per the drawing specification. Drafting front, side and top view of socket, spigot and cotter. It is usually used in connecting a piston rod to the crosshead of a reciprocating steam engine, a piston rod and its extension. Spigot and socket joint pipes are joined and sealed using either a rolling rubber or a sliding rubber ring respectively. Design a socket and spigot cotter joint to connect two steel rods of equal diameter. Introduction friction clutches torque transmitting capacity uniform pressure theory uniform wear theory multidisk clutches cone clutches centrifugal clutches friction materials for clutches. Chapter 7 cotter and knuckle joints machine design. Socket and spigot cotter joint for 20mm dia shaft socket and spigot cotter joint for 20mm dia. The socket and spigot cotter joint is shown in fig 2. Failure of spigot in tension across the weakest section or slot.
The effect of stress concentration due to the slot is neglected. The cotter is usually made of mild steel or wrought iron. Socket and spigot cotter joint for 20mm dia shaft 3d cad. Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. Design a helical compression spring for a maximum load of n for a deflection of 25.
Let p load carried by the rods, d diameter of the rods, d1 outside diameter of socket, d2 diameter of spigot or inside diameter of socket, d3 outside diameter of spigot collar, t1 thickness of spigot. Failure of the rods in tension design of socket and spigot cotter joint p p. Sleeve cotter joint pdf the working of the cotter andsleeve and cotter and gib are shown below. It has uniform thickness and the width dimension is given a slight taper. The 3d models of socket and spigot joint parts socket, spigot, cotter are created using autocadcatia. A cotter is driven tightly through the slots in the rods which are kept slightly mis aligned. Dear friends, here with i upload videos regarding subjects like machine design and industrial drafting, machine design i, machine design ii 1 introduction.
Cotter joint these types of joints are used to connect the end of a rod or bar to a shaft. Design a cotter joint subjected to a tensile load of 35 kn and a. Each rod is subjected to an axial tensile force of 50 kn. Cotter joints can be quickly assembled as well as disassembled. One of the rods is formed into a socket by enlarging its end while the other rod, called spigot end is formed with enlarged diameter and an integral. In a socket and spigot cotter joint, one end of the. The drawings of socket, spigot, and cotter are studied.
The spigot of a cotter joint has a diameter d and carries a slot for cotter. Design of socket and spigot cotter joint the socket and spigot cotter joint is shown. Design a cotter joint of socket and spigot type, which may be subjected to a pill or push of 30 kn. P load on the joint or pull acting on rods, d diameter of the rod, d1 outer diameter of socket,d2 diameter of spigot or inside diameter of socket, d3 outside diameter of spigot collar,d4 diameter of socket collar, t1 thickness of spigot collar, a distance from the end of the slot to end of spigot, c thickness. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Design of cotter joint bending strength of materials. Design of cotter joint free download as powerpoint presentation. Cotter joint is used to connect two rods or components which are subjected to tension or compression.
The dimensions for a socket and spigot cotter joint may be obtained by considering the. Socket and spigot cotter joint sleeve and cotter joint gib and cotter joint applications. It is not used for connecting shafts that rotate and transmit torque. Socket and spigot cotter joint the socket and spigot cotter joint is shown in fig. The cotter has uniform thicknesss and the width dimension b is given a slight taper. Design of socket and spigot cotter joint linkedin slideshare. Keys, cotter and unit 5 key, cotter and knuckle knuckle. Sleeve and cotter joint and its design engineers gallery. The socket and the spigot are provided with a narrow rectangular slot. Spigot and socket cotter joint this type of joint is used for round rods. All the parts of the joint are made of the same material with the permissible stresses, 55 mpa in tension, 70 mpa compression and 40 mpa in shear. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. A cotter joint is a temporary fastening and is used to connect rigidly two co axial rods or bars which are subjected to axial tensile or compressive force.
Roda is provided with a socket end, while rodb is provided with a spigot end. Anuj gupta introduction 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. The cotter has uniform thickness and the width dimension b is given a slight taper. A key attached movement is known as feather turning moment and also permits key being a sliding fit in the key 6. Slots are provided in the spigot and socket ends to accommodate the cotter. Chapter 4e design of rivets for eccentrically loaded joints. Winner of the standing ovation award for best powerpoint templates from presentations magazine. Ppt cotter joint powerpoint presentation free to view. May 11, 2020 chapter 7 cotter and knuckle joints machine design, mechanical engineering mechanical engineering notes edurev is made by best teachers of mechanical engineering.
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