A spigot or tap or faucet is a valve for controlling the release of a gas or liquid. Design a cotter joint of socket and spigot type, which may be subjected to a pill or push of 30 kn. Cotter joints can be quickly assembled as well as disassembled. Rods may be of different cross sections like circular or square. Research article process design of a ball joint, considering. Design of cotter joint cotter joint is also called as socket and spigot joint. Knuckle joint design procedure problems and questions assembly drawing of knuckle joint knuckle joint assembly drawing sectional front top view mechanical drafting md machine drawing sleeve and cotter joint socket spigot knuckle joint drawing you solved 2 shear loading of bolt given the knuckle joint machine drawing btau305 sunil. Rastrasant tukdoji maharaj nagpur university, nagpur faculty.
Dear student, let us begin lectures on machine design part i. 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. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. They are used on virtually every automobile made and work similarly to the ball and socket design of the human hip joint.
The molten lead solidifies quickly and makes the joint water tight. Design a spigot and socket type cotter joint to transmit reversible load of 50 kn. Cutting steel water pipe pe coated, cement mortar lined steel water pipe a. Sleeve and cotter joint, socket and spigot joint and.
A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another. Ppt cotter joint powerpoint presentation free to view. Sleeve cotter joint pdf the working of the cotter andsleeve and cotter and gib are shown below. Spigot and socket jointcotter joint rods, having axial tensile or compressive forces are connected by cotter joints. Failure of cotter joint may causes accident, so it is necessary to design cotter joint to. The variou s proportions of the joint as per empirical relations are. 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. V semester mechanical engineering machine design i syllabus. How to design login and register form in java netbeans. 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.
Permissible shear stress for the cotter material, and. All the parts of the joint are made from same material with following allowable stresses. Socket and spigot repair collars for the repair of leaking socket joints on cast and ductile iron pipe. 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. Socket and spigot cotter joint is used to connect circular rods. Spigot and socket joint pipes are joined and sealed using either a rolling rubber or a sliding rubber ring respectively. 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 joint for connecting two rods along which tension or compression act is made with ends of the rod especially made. The drawings of socket, spigot, and cotter are studied. Design of socket and spigot joint free download as powerpoint presentation.
The top countries of suppliers are india, china, from which the percentage of spigot and socket joints supply is 1%, 99% respectively. 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 cotter joint socket and spigot joint it is used to connect two coaxial rods under the action of axial tensile or compressive loads. There are a three types of cotter joint 1 socket and spigot cotter joint 2 sleeve and cotter joint 3 gib and cotter joint. What are the practical application of cotter joint. Spigot, the male end of a pipe designed to be connected with a spigot and socket joint. Consideration in design, material properties and their uses in design, basic principles of machine design, modes of failures, i.
The sk hand tools 34inch drive 178inch ball joint impact socket uses a suregrip hex design to drive the side of the hex instead of the corner, providing more strength while preventing fastener rounding. Us types of gear pdf, gib and cotter joint, socket and spigot joint, classification of brakes, types of fire in hindi, application of. 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. Gib and cotter joint design procedure for the spigot and cotter joint to understand the design steps let take a. This video explains design procedure of socket and spigot type of the cotter joint. 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. Design of cotter joint bending strength of materials.
Design of various types of riveted joints under different static loading. The dimensions for a socket and spigot cotter joint may be obtained by. Symbols for single line piping arrangement drawings. The socket and spigot cotter joint is shown in fig 2. Types of cotter joints, design of socket and spigot joint, design of sleeve and cotter joint, design of jib and cotter joint, design procedure of knuckle joint.
Lower fos because a no stress concentration factor in the shear b cost of cotter is compared with socket and spigot end c if at all failure is going to occur in the cotter, cotter should be failed rather than socket and spigot 12516 design procedure of cotter joint. Joint between piston rod and crosshead of steam engine 2. In general, details should minimize constraint against ductile behavior, avoid undue concentration of welding, and afford ample access for depositing the weld metal. A cotter joint is used to connect one end of a rod is provided with a socket type of end and the other end of the rod is inserted to a socket. Cotter joint 1 cotter joint fig 01 assembled cottered joint 2 cotter joint modes of failure tension failure fig 02 steel spigot breaking in tension outside the joint 3 tension failure cotter joint modes of failure 4 tension failure cotter joint modes of failure fig 07 socket breaking in tension across slot 5 cotter joint modes of failure. Design of socket and spigot joint bending mechanics. The computeraided design cad files and all associated content posted to this. The sliding rubber ring is installed using a soft soap lubricant. In our syllabus the assembly and disassembly of cotter joints for circular and square rod are there. Design of solid and hollow shafts based on strength, rigidity and critical. The design of the cotter joint is based on the basic direct stress. Design of gib and cotter joint for strap end of a connecting rod. The factor of safety for rods, spigot end and socket. The two rings are pulled together by tightening the nuts at the end of each stud, this in turn pulls the joint together, the gasket then forms a tight seal around the socket stopping the leak.
Design a socket and spigot cotter joint to connect two steel rods of equal diameter. The bearing stud is tapered and threaded, and fits into a tapered hole in the steering knuckle. If the allowable stresses in tension, compression and shear for the socket, rod and cotter. 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.
Spigot is formed on one of the rods and socket is formed on the other. 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. Design procedure of cotter joint, socket and spigot joint. A ball joint consists of a bearing stud and socket enclosed in a casing. Therefore, the data in this handbook should be used only for general guidance in conjunction with the specific design criteria and with the application of proper engineering principles. The end of the rod which goes into a socket is also called spigot. Design a socket and spigot joint to resist a tensile load of 28 kn. Knuckle joint only sectional front view is in our syllabus. Sleeve and cotter joint, socket and spigot joint and knuckle joint drawn by r. There are 371 suppliers who sells spigot and socket joints on, mainly located in asia. Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. Material of two rods and cotter is steel 30 c8 s yt 400nmm2, s yc 2 s yt and s sy 0. 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 joint is made by caulking in spun yarn jute and then filling the remainder of the joint space by molten lead and then thoroughly caulking the lead.
Spigot and socket joint definition and meaning collins. Design of socket and spigot cotter joint the socket and spigot cotter joint is. A steel plate subjected to a force of 10 kn and fixed to another plate by means of 8 three identical bolts is shown in figure. Spigot and socket joint cotter joint rods, having axial tensile or compressive forces are connected by cotter joints. Me 308 s6 mechanical engineering, ktu presented by, vineeth. Practicing all machine design mechanical engineering questions and answers in online helps you to improve your ability to attend the real time gate, ies and bsnl jto exams. Socket and spigot cotter joint and its design engineers. The effect of stress concentration due to the slot is neglected. Use a propane burner with a large burner head to heat the cement mortar inside the spigot end. Sk 84688 34inch drive 178inch ball joint impact socket. Machine design mechanical engineering questions and.
Restrained socket joints 9 restrained socket joints 9. Riveted and welded joint types of riveted joint, lap joint, butt joint, caulking and fullering, failure of riveted joint, strength of riveted joint, efficiency of riveted. Spigot inc, an international digital marketing company. Socket and spigot cotter joint the socket and spigot cotter joint is shown in fig. Hey, i author of the blog thank you for reading my blog and making it popular, its your contribution that this blog is being visited by a number of people from all around the world. At4 spigot, nato reporting name for 9k111 fagot, a russian antitank missile. P 50 kn 100 or 8m p 50 kn design and draw a socket and spigot cotter joint to support a load varying from 30 kn in compression to 30 kn in tension. Their performance can be predicted more accurately.
Stressstrain diagram in designing various parts of a machine, it is necessary to know. Spigot and socket joint, joints in water supply pipes. 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. Rcp gasket joint details 12 to 36 c wall and b wall 3. It is required to design a 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 socket 3 spigot 4 cotter 5 socket collar 6 spigot collar mr. In a socket and spigot cotter joints, one end of the rods is provided with a. Chapter 4e design of rivets for eccentrically loaded joints. Determine the plate thickness t for infinite life, if the notch sensitivity factor is 0. Introduction to mechanical engineering design, design methods, aesthetic and ergonomics consideration in design, material properties and their uses in design, basic principles of machine design, modes of failures, i. Now this kind of cotter joint is known as a socket and spigot type cotter joint. Design a helical compression spring for a maximum load of n for a deflection of 25. The 3d models of socket and spigot joint parts socket, spigot, cotter are created using autocadcatia. The assembly of socket and spigot joint was created as per the drawing specification.
Slot weld size design shall be based on shear in the plane of the faying surfaces. One rod end carries a spigot the end to be inserted while the other rod end is finished in form of a socket. In a socket and spigot cotter joint, one end of the rods say a is provided with a socket. Crushing failure crushing failure mode of eye through pin the projected area is considered. The ends are normally made by forging and rectangular hole is also created. We shall learn that there are three cotter joints for connecting the circular rods. 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. Tv station business plan b ed solved assignments aiou. The expected reliability is 90% and the factor of safety is 2. 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. A cotter joint for connecting two rods along which tension.
The improved black coating has more rust preventative compound than black oxide coatings. Muttagi, slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Each rod is subjected to an axial tensile force of 50 kn. A wide variety of spigot and socket joints options are available to you, such as plastic. The socket and spigot cotter joint is shown in fig. Piping coordination system butt welded, socket welded and. Sep 18, 2017 socket and spigot joint assembly and sectional views for more machine drawing videos. Mechanical joints may be temporary or permanent, most types are designed to be disassembled. It includes the various applications of the joints and also the comparison of the joints. Cut through the pipe using an angle grinder or pipe cutter with a disc suitable for steel and cement mortar. Types of key and design, design of socket spigot cotter joint, sleeve and cotter joint, gib and cotter joint, design of. Annexure b rashtrasant tukdoji maharaj nagpur university. 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. Piping coordination system butt welded, socket welded and threaded symbols for a single line piping arrangement drawings.
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