Cotter joints can be quickly assembled as well as disassembled. The ball and socket joint or spheroid joint is a type of synovial joint in which the ballshaped surface of one rounded bone fits into the cuplike depression of another bone. Cotter joint is used to connect two rods subjected to compressive or axial tensile loads. Design of various types of riveted joints under different static. Procedure for the spigot and cotter joint to understand the design steps let take a question and solve it step by step. Before going into detailed steps to design the dimensions of the knuckle joint, it is essential to get oriented with all its components and their functions. One of the rods is formed into a socket by enlarging its end while the other rod, called spigot end is formed with enlarged. A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another. Gib and cotter joint design procedure for the spigot and cotter joint to understand the design steps let take a question and solve. Sleeve cotter joint pdf the working of the cotterandsleeve and cotterand gib are shown below. To understand the design steps let take a question and solve it step by step. Design of socket and spigot joint bending mechanics. Following are the three commonly used cotter joints to connect two rods by a cotter.
Restrained socket joints 9 restrained socket joints 9. 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. Socket spigot socket and spigot joint manufacturer from. Video lecture on design procedure of cotter joint, socket and spigot joint from design of cotter joint, knuckle joint,levers and offset links. It is not at all suitable to connect rotating shafts which transmit torque. The socket and spigot cotter joint is shown in fig.
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 without rotation. A wide variety of spigot and socket joints options are available to you, such as plastic. 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. Socket and spigot cotter joint the socket and spigot cotter joint is shown in fig. The dimensions for a socket and spigot cotter joint may be obtained by. 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. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. 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.
Muttagi, slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The load is usually acting axially, but it changes its direction and hence the cotter joint must be designed to carry both the tensile and compressive loads. Design procedure of cotter joint, socket and spigot joint design. A spigot joint is a type of pipe fitting connection that is inserted into another pipe fitting. 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 free download as powerpoint presentation. Aim design and drawing of cotter joint function a cotter joint is. Mechanical joints may be temporary or permanent, most types are designed to be disassembled. 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 concrete pipe and rubber seal. The sliding rubber ring is installed using a soft soap lubricant. A large number of different socket and seals exist. Sometimes, a sleeve and cotter joint as shown in fig.
Rods may be of different cross sections like circular or square. The top countries of suppliers are india, china, from which the percentage of spigot and socket joints supply is 1%, 99% respectively. The distal bone is capable of motion around an indefinite number of axes, which have one common center. Socket and spigot cotter joint sleeve and cotter joint. The spigot end typically has the same outer diameter as the pipe and is usually fitted into another joint called a bell or socket. Also in our syllabus there is only one cotter joint for joining square or rectangular rods and it is called. What are the practical application of cotter joint. With autodesk gallery, you can view and present 3d model and file easily online. Socket and spigot cotter joint solid works part design. 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. Design a socket and spigot joint to resist a tensile load of 28 kn. Socket and spigot cotter joint and its design engineers gallery. Spigotandsocket joint article about spigotandsocket. Design of cotter joint free download as powerpoint presentation.
Sachin solanki is author and founder of this blog, part time professional tech blogger, web developer and founder of mechanical information, a guide to all fresh mechanical information thanks. Sleeve and cotter joint and its design engineers gallery. There are 371 suppliers who sells spigot and socket joints on, mainly located in asia. Chapter 7 cotter and knuckle joints machine design, mechanical engineering mechanical engineering notes edurev notes for mechanical engineering is made by best teachers who have written some of the best books of mechanical engineering. Now, let us learn more about the sleeve and cotter joint rzqordghgiurpzzz vwxglhvwrgd\ frp. If the allowable stresses in tension, compression and shear for the socket, rod and cotter be t. Spigot fits inside the socket and the cotter is passed through. The cotter is usually made of mild steel or wrought iron. All the parts of the joint are made from same material with following allowable stresses. Spigot is formed on one of the rods and socket is formed on the other. 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 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. 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. As seen in the assembly the knuckle joint has main four parts. The official platform from autodesk for designers and engineers to share and download 3d models, rendering pictures, cad files, cad model and other related materials. 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. Function a cotter joint is used to connect one end of a rod is provided with a socket type of end and the other end. What are the applications of socket and spigot cotter. Design a cotter joint subjected to a tensile load of 35 kn and a compressive load of 40 kn. The most modern is the pushjoint or slipjoint, whereby the socket and rubber seal is designed to allow the pipe spigot to be, after lubrication, simply pushed into the socket.
Socket and spigot cotter joint is used to connect circular rods. The examples of tapered keys are a taper sunk key b. Chapter 7 cotter and knuckle joints machine design. Spigot and socket joint definition and meaning collins. The socket and the spigot are provided with a narrow rectangular slot. This video explains design procedure of socket and spigot type of the cotter joint. The disclosed spigotandsocket joint is characterized in that at least four recesses 26 to 29 are provided which are equidistantly disposed in the circumferential direction while the two locking elements are each fitted with two ring segmentshaped locking parts 52, 54 which are interconnected via one respective web 56.
Socket and spigot cotter joint sleeve and cotter joint gib and cotter joint applications. Manufacturer of socket spigot socket and spigot joint, pipe socket, rcc cement pipe socket spigot np3 offered by jay ambe enterprise, ahmedabad, gujarat. 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. Spigot and socket joint pipes are joined and sealed using either a rolling rubber or a sliding rubber ring respectively. Knuckle joint only sectional front view is in our syllabus. Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. Spigot and socket joint, joints in water supply pipes.
Here is the diagram showing the exploded view of knuckle joint. 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 procedure of cotter joint, socket and spigot joint. A socket is formed by expanding the end of one rod in which the spigotend of the other rod is inserted. Socket and spigot cotter joint and its design engineers. 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.
Design and draw a neat sketch of spigot rod for the cotter joint using the following data. The molten lead solidifies quickly and makes the joint water tight. Sleeve and cotter joint, socket and spigot joint and. Sleeve and cotter joint, socket and spigot joint and knuckle joint drawn by r. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Spigot and socket jointcotter joint rods, having axial tensile or compressive forces are connected by cotter joints.
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