Cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. Socket and spigot cotter joint and its design engineers. Cotter joints can be quickly assembled as well as disassembled. Socket is the female part of the joint, it also has a rectangular slot for passing the cotter through it.
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. Pvc schedule 40 spigot x socket bushings complete plumbing source offers pvc schedule 40 pressure spigot x socket reducing bushings made by nibco, spears and charlotte in. The 3d models of socket and spigot joint parts socket, spigot, cotter are created using autocadcatia. Design a socket and spigot cotter joint to connect two steel rods of equal diameter. The factor of safety for rods, spigot end and socket end is assumed as 6 while for cotter. Assemble all the parts correctly and draw the following. Design of cotter joint free download as powerpoint presentation. Modeling and analysis of cotter joint ijert journal.
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. Keys, cotter and unit 5 key, cotter and knuckle knuckle. The molten lead solidifies quickly and makes the joint water tight. Cotter joint in solidworks, sketch, 3d model and its assembly, only for education purpose here is an animation video for cotter joint assembly explod. Maharashtra state board of technical education autonomous. Cotter joint article about cotter joint by the free dictionary. Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. Chapter 4jwelded joints under shear or direct loads. Design of socket and spigot cotter joint linkedin slideshare. Socket and spigot joint assembly and sectional views for more machine drawing videos. Socket and spigot joint part design, assembly and drawing of all parts with solidworks. Sleeve and cotter joint and its design engineers gallery. 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.
Sep 18, 2017 socket and spigot joint assembly and sectional views for more machine drawing videos. A socket is formed by expanding the end of one rod in which the spigot end of the other rod is inserted. Autocad mechanical practice drawings pdf free download. Spigot and socket joint definition and meaning collins. This cavity or slot is kept slightly out socket and spigot joint front view 32 3 r 50 o 24 3 o24 o30 o66 8 28 40 90 4 40 28 10 r a front view full in section left side view roda socket cotter collara collarb spigot rodb socket and spigot joint fig 4.
Inspection manual for precast concrete pipe and structures. Proper engineering design of a system will take into consideration the type and effectiveness of the techniques used to join the piping components and. 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. Click the likes count to see who has liked a model and meet engineers with similar interests. Diameter of spigotinside diameter of socket d diameter of spigot collar d 1 outer diameter of socket d 2 diameter of socket collar cthickness of socket collar t 1 thickness of spigot collar t thickness of cotter b mean width of cotter a distance of end of slot to the end of spigot p axial tensilecompressive force. Shearing away of socket if dw spigot end cotter joint modes of failure. Socket and spigot cotter joint is used to connect circular rods.
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. The assembly consists of inserting the spigot end into the socket end and putting the cotter into their common slot. Design procedure of cotter joint, socket and spigot joint design of machine duration. Spigot is formed on one of the rods and socket is formed on the other. 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. Cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Each rod is subjected to an axial tensile force of 50 kn. Spigot fits inside the socket and the cotter is passed through.
Figure 315, page 102, bhandari socket cotter spigot front view top. 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. Socket and spigot cotter joint, sleeve and cotter joint, and gib and cotter joint. Cotter joints may be used in areas subject to corrosion during operation, resulting in difficulty in turning rusty bolts and nuts of threaded connections. Sleeve cotter joint pdf the working of the cotter andsleeve and cotter and gib are shown below. A cotter is driven tightly through the slots in the rods which are kept slightly mis aligned.
Click the arrows to browse the renderings and cad files, or click the image to open it. Cut section of socket and spigot joint 3272012 2 hareesha n g, dsce, blore78. Spigot and socket joint pipes are joined and sealed using either a rolling rubber or a sliding rubber ring respectively. A wide variety of spigot and socket joints options are available to you, there are 394 suppliers who sells spigot and socket joints on, mainly located in asia. The cotter has uniform thickness and the width dimension is given a slight taper. Download merged pdf 2nd mst all in one file click here. Keys, cotter and unit 5 key, cotter and knuckle knuckle joints joints structure 5. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Cotter the taper of usually 1 in 24 is provided for following two taper side reasons. Cotter joints use a transverse wedge with cylindrical or conical surfaces, and a longitudinal wedge.
Sleeve and cotter joint, socket and spigot joint and. Sleeve cotter joint pdf the working of the cotter and sleeve and cotter and gib are shown below. Socket and spigot repair collars for the repair of leaking socket joints on cast and ductile iron pipe. Gib and cotter joint socket and spigot cotter joint p load carried by the rods, d diameter of the rods, d 1 outside diameter of socket, d 2 diameter of spigot or inside diameter of socket, d 3 outside diameter of spigot collar, t 1 thickness of spigot collar, d 4 diameter of socket collar, c. Gib and cotter joint design procedure for the spigot and cotter joint. The top countries of suppliers are india, china, from which the percentage of spigot and socket joints supply is 1%, 99% respectively. Sleeve and cotter joint, socket and spigot joint and knuckle joint drawn by r. This video explains design procedure of socket and spigot type of the cotter joint. When the cotter is hammered, the rods are drawn together and tightened. Double shearing of cotter pin cotter joint modes of failure.
Design and analysis of knuckle joint by using fea the most commonly used types of cotter joints are. 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. This is normally a factory applied buildup welding under a shielding gas. Cotter joint a cotter joint is used to connect rigidly two coaxial rods or. The assembly of socket and spigot joint was created as per the drawing specification. The sliding rubber ring is installed using a soft soap lubricant. A cotter is driven tightly through the slots in the rods which are kept. It is not difficult to see that to make the joint spigot is inserted into the socket. Instructions the parts and assembly of the cotter joint is.
Design of socket and spigot cotter joint slideshare. Socket and spigot cotter joint the socket and spigot cotter joint is shown in fig 2. Cotter is a wedge shaped piece of metal which actually connects two parts which are non rotating. Pe pipe joining procedures 327 chapter 9 pe pipe joining procedures introduction an integral part of any pipe system is the method used to join the system components. Pvc schedule 40 spigot x socket bushings pvc schedule 40. These joints are not suitable where the members are under rotation. November 7th, 2012 assem of socket and spigot cotter joint. 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. A cotter joint is a simple and compact connection and is easily assembled and disassembled. Design of socket and spigot joint bending mechanics. Drafting front, side and top view of socket, spigot and cotter. Cotter joints are used to connect two rods, subjected to tensile or compressive forces along their axes. The drawings of socket, spigot, and cotter are studied. Muttagi, slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
Spigot and socket joint, joints in water supply pipes. Unit 5 key, cotter and knuckle knuckle joints joints structure 5. Material of two rods and cotter is steel 30 c8 s yt 400nmm2, s yc 2 s yt and s sy 0. Mar 30, 2017 socket and spigot cotter joint is connecting two rods in such a way that it can transfer axial compression or tensile load. 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. At a fixed distance from the end of the pipe, a surrounding welded bead is applied to the spigot end. 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.
To highlight your renderings and models, we made the viewer even bigger. The socket and the spigot are provided with a narrow rectangular slot. Project file to be submitted on the simple solids prism, pyramids and frustums of equilateral. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party. Socket and spigot cotter joint solid works part design. Cotter joint with drawing sheet 3d cad model library grabcad. Cotter joint is also called as socket and spigot joint. Rods may be of different cross sections like circular or square. Following are the three commonly used cotter joints to connect two rods by a cotter. The standard fittings include flanges, couplings, elbows, tees, wyes, reducers, saddles, crosses and end caps. Cotter joint the cotter joint offers the following advantages. Join 7,260,000 engineers with over 4,160,000 free cad files join the community join 7,260,000 engineers with over 4,160,000 free cad files join the community load in 3d viewer uploaded by anonymous. The following are some of the commonly used cotter joints.
Spigot and socket jointcotter joint rods, having axial tensile or compressive forces are connected by cotter joints. What are the practical application of cotter joint. Spigot joint article about spigot joint by the free dictionary. In this case one end of the first rod is enlarged in diameter to some. Couplings i unprotected flange coupling having socket and spigot arrangement. The assembly and dismantling of parts of the cotter joint is quick and simple. 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.
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