The cotter is locked in position by means of a screw as shown in fig. Muttagi, slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 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. The variou s proportions of the joint as per empirical relations are. The end of the rod which goes into a socket is also called spigot. Sleeve and cotter joint, socket and spigot joint and.
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. Cut section of socket and spigot joint 3272012 2 hareesha n g, dsce, blore78. Design of cotter joint cotter joint is also called as socket and spigot joint. Gib and cotter joint design procedure for the spigot and cotter joint to understand the design steps let take a question and solve. Design procedure of cotter joint, socket and spigot joint design. The computeraided design cad files and all associated content posted to this. There are a three types of cotter joint 1 socket and spigot cotter joint 2 sleeve and cotter joint 3 gib and cotter joint. Spigot is formed on one of the rods and socket is formed on the other. 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. 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.
The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. 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. Video lecture on design procedure of cotter joint, socket and spigot joint from design of cotter joint, knuckle joint,levers and offset links. Socket and spigot cotter joint and its design engineers. It includes the various applications of the joints and also the comparison of the joints. 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. Socket and spigot cotter joint is used to connect circular rods. Failure of cotter joint may causes accident, so it is necessary to design cotter joint to. If the allowable stresses in tension, compression and shear for the socket, rod and cotter be t. 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.
Sleeve cotter joint pdf the working of the cotterandsleeve and cotterand gib are shown below. Design of socket and spigot cotter joint linkedin slideshare. Spigot and socket jointcotter joint rods, having axial tensile or compressive forces are connected by cotter joints. Restrained socket joints 9 restrained socket joints 9. Spigot joint article about spigot joint by the free dictionary. A socket is formed by expanding the end of one rod in which the spigot end of the other rod is inserted. 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. Spigot and socket joint definition and meaning collins. A rectangular hole is made in the socket and spigot. A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another.
About 23% of these are steel pipes, % are plastic tubes, and % are pipe fittings. When the cotter is hammered, the rods are drawn together and tightened. Spigot joint article about spigot joint by the free. Design procedure the dimensions for a socket and spigot cotter joint may be obtained by considering the various modes of failure 1 failure of the rod in tension the rod may fail in tension due to the tensile load p. Following are the three commonly used cotter joints to connect two rods by a cotter.
The socket and the spigot are provided with a narrow rectangular slot. 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. Socket and spigot cotter joint the socket and spigot cotter joint is shown in fig. Cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. Sleeve and cotter joint, socket and spigot joint and knuckle joint. Dec 21, 2017 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. Design of various types of riveted joints under different static. May 08, 2017 the cotter is usually made of mild steel or wrought iron. Cotter joints are used to connect two rods, subjected to tensile or compressive forces along their. 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 for knuckle, turn buckle and socket.
Design procedure the dimensions for a socket and spigot cotter joint may be obtained by considering the various modes of failure 1 failure of the rod in tension. Joints between the piston rod and the cross need of the steam engine. The assembly and dismantling of parts of the cotter joint is quick and simple. 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. Forsheda 140 lamell sliding rubber seal permits installation with very little force as there is lubricant enclosed within the seals sliding layer, thus there is no friction between. The cotter is usually made of mild steel or wrought iron. 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.
Spigot and socket joint pipes are joined and sealed using either a rolling rubber or a sliding rubber ring respectively. The assembly consists of inserting the spigot end into the socket end and putting the cotter into their common slot. Sleeve and cotter joint, socket and spigot joint and knuckle joint drawn by r. Socket and spigot cotter joint and its design engineers gallery. The socket and spigot cotter joint is shown in fig 2. Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. Spigot fits inside the socket and the cotter is passed through both the socket and the spigot. Permissible shear stress for the cotter material, and.
The dimensions for a socket and spigot cotter joint may be obtained by. Cotter joints can be quickly assembled as well as disassembled. 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. 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 collar as shown in fig 8. 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 collar the spigot is put inside the socket and the cotter is driven through the slots in socket and spigot ends. Design of socket and spigot joint bending mechanics. Rods may be of different cross sections like circular or square.
Nov 29, 20 the variou s proportions of the joint as per empirical relations are. Design of socket and spigot cotter joint slideshare. Spigot and socket pipe joint, spigot and socket pipe joint. There are 371 suppliers who sells spigot and socket joints on, mainly located in asia. Material of two rods and cotter is steel 30 c8 s yt 400nmm2, s yc 2 s yt and s sy 0. A ball joint consists of a bearing stud and socket enclosed in a casing. Aim design and drawing of cotter joint function a cotter joint is. The socket and spigot cotter joint is shown in fig. Instructions the parts and assembly of the cotter joint is. Design procedure of cotter joint, socket and spigot joint. A cotter is driven tightly through the slots in the rods which are kept slightly mis aligned. The effect of stress concentration due to the slot is neglected.
Figure 315, page 102, bhandari socket cotter spigot front view top view side. Mechanical joints may be temporary or permanent, most types are designed to be disassembled. Presentation mode open print download current view. Sleeve cotter joint pdf the working of the cotter and sleeve and cotter and gib are shown below. Notation used design procedure the dimensions for a socket and spigot cotter joint may be obtained by considering the various modes of failure 1 failure of the rod in tension the rod may fail in tension due to the tensile load p. This increases the bearing area and permits drilling while making the slots.
The bearing stud is tapered and threaded, and fits into a tapered hole in the steering knuckle. Cotter joint the cotter joint offers the following advantages. They are used on virtually every automobile made and work similarly to the ball and socket design of the human hip joint. The top countries of suppliers are india, china, from which the percentage of spigot and. A cotter is a wedge shaped piece made of a steel plate.
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. What are the practical application of cotter joint. Gib and cotter joint design procedure for the spigot and cotter joint to understand the design steps let. 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. 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. A cotter is then driven tightly through a hole in order to make the temporary connection between the two rods. A socket is formed by expanding the end of one rod in which the spigotend of the other rod is inserted.
A wide variety of spigot and socket joints options are available to you, such as plastic. Design a socket and spigot cotter joint to connect two steel rods of equal diameter. Design of socket and spigot cotter joint part number name of part 1 shaft or rod 2. 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 collar. The permissible crushing stress is x times the permissible tensile stress for the material of spigot where x 1.
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