After modeling on catia v5r19, we will analyze cotter joint on software named as ansys v15. Design of socket and spigot joint bending mechanics. 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. Socket and spigot joint part design, assembly and drawing of all parts with solidworks. Cotter the taper of usually 1 in 24 is provided for following two taper side reasons. The factor of safety for rods, spigot end and socket. 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. Sep 18, 2017 socket and spigot joint assembly and sectional views for more machine drawing videos. 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. 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. For the rod as well as cotter material, shear stress is equal to 80 % of tensile stress. 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. Explain the design procedures of various shaft couplings.
A mechanical joint is a part of a machine which is used to connect one. Design of gib and cotter joint for strap end of a connecting rod. Gib and cotter joint design procedure for the spigot and cotter joint to understand the design steps let take a question and solve. Rods may be of different cross sections like circular or square. 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. Knuckle joint only sectional front view is in our syllabus. Cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. There are 371 suppliers who sells spigot and socket joints on, mainly located in asia. Design of socket and spigot joint free download as powerpoint presentation.
Design of cotter joint cotter joint is also called as socket and spigot joint. State the different applications of the knuckle joint. Instructions the parts and assembly of the cotter joint is. It includes the various applications of the joints and also the comparison of the joints.
Design of gib and cotter joint for strap end of a connecting. Spigot and socket joint, joints in water supply pipes. A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another. A cotter joint is a temporary fastening and is used to connect. Socket and spigot cotter joint and its design engineers.
The effect of stress concentration due to the slot is neglected. State the different applications of the cotter joint. Because of the wedging design utilized, the force between the spigot and the socket of the joint is essentially constant at any given pressure thrust regardless of the tightness or looseness of the joint fit or the joint deflection. A cotter is driven tightly through the slots in the rods which are kept slightly mis aligned. Spigot and socket jointcotter joint rods, having axial tensile or compressive forces are connected by cotter joints. 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. After the design of cotter joint, the modeling of cotter joint is done by using catia v5r20. Muff couplings, flanged couplings, flexible coupling, oldhams coupling and universal coupling parallel and tapered sunk keys hollow and flat saddle keys feather key and pin key. Cotter joint in solidworks, sketch, 3d model and its assembly, only for education purpose here is an animation video for cotter joint assembly explod. The top countries of suppliers are india, china, from which the percentage of spigot and socket joints supply is 1%, 99% respectively. Following are the three commonly used cotter joints to connect two rods by a cotter. 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. 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. 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. Each rod is subjected to an axial tensile force of 50 kn. Design a socket and spigot joint to resist a tensile load of 28 kn.
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. Maharashtra state board of technical education autonomous. To understand the design steps let take a question and solve it step by step. The assembly consists of inserting the spigot end into the socket end and putting the cotter into their common slot. This increases the bearing area and permits drilling while making the slots. There are a three types of cotter joint 1 socket and spigot cotter joint 2 sleeve and cotter joint 3 gib and cotter joint. Chapter 4e design of rivets for eccentrically loaded joints. Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. Most mechanical joints are designed to allow relative movement of these. Socket and spigot cotter joint solid works part design.
The socket and the spigot are provided with a narrow rectangular slot. View notes cotter and knuckle joint from none at lovely professional university. Keys, cotter and unit 5 key, cotter and knuckle knuckle. Tensile stress and crushing stress are 50 nmm2 2and 100 nmm respectively. 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. 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. Design a cotter joint subjected to a tensile load of 35 kn and a compressive load of 40 kn. Designing and building furniture you have to consider a lot. Failure of cotter joint may causes accident, so it is necessary to design cotter joint to. Socket and spigot cotter joint solid works part design and assembly socket and spigot cotter joint solid works part design and assembly. A cotter joint is a temporary fastening and is used to connect rigidly two. The molten lead solidifies quickly and makes the joint water tight. Cotter and pin joints socket and spigot joint gib and cotter joint sleeve and cotter joint and knuckle joint. Cotter joint the cotter joint offers the following advantages.
Ability to design shafts for various types of loading. Spigot is formed on one of the rods and socket is formed on the other. Cotter joints are used to connect two rods, subjected to tensile or compressive forces along their. 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. Spigot and socket joint definition and meaning collins. Drafting front, side and top view of socket, spigot and cotter. Cotter joint assembly 3d cad model library grabcad. Permissible shear stress for the cotter material, and. 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. If the allowable stresses in tension, compression and shear for the socket, rod and cotter be t. A socket is formed by expanding the end of one rod in which the spigot end of the other rod is inserted. Understand jib and cotter joint and design procedure. Sleeve and cotter joint, socket and spigot joint and. Scribd is the worlds largest social reading and publishing site.
Design of socket and spigot cotter joint part number name of part 1 shaft or rod 2. The cotter is usually made of mild steel or wrought iron. Sleeve and cotter joint, socket and spigot joint and knuckle joint drawn by r. 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 socket and spigot cotter joint is shown in fig.
Muttagi, slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Socket and spigot cotter joint the socket and spigot cotter joint is shown in fig. 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. 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. Joint between piston rod and crosshead of steam engine 2. A ball joint consists of a bearing stud and socket enclosed in a casing. A wide variety of spigot and socket joints options are available to you, such as plastic. What are the practical application of cotter joint. Cut section of socket and spigot joint 3272012 2 hareesha n g, dsce, blore78. Knuckle joint is yet another to join rods to carry axial force. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Design of socket and spigot cotter joint slideshare. Spigot and socket joint pipes are joined and sealed using either a rolling rubber or a sliding rubber ring respectively.
Socket and spigot cotter joint is used to connect circular rods. Autocad mechanical practice drawings pdf free download autocad exercise book. They are used on virtually every automobile made and work similarly to the ball and socket design of the human hip joint. Autocad mechanical practice drawings pdf free download. Material of two rods and cotter is steel 30 c8 s yt 400nmm2, s yc 2 s yt and s sy 0. Socket and spigot repair collars for the repair of leaking socket joints on cast and ductile iron pipe. The permissible crushing stress is x times the permissible tensile stress for the material of spigot where x 1. Design procedure for knuckle, turn buckle and socket. Gib and cotter joint design procedure for the spigot and cotter joint to understand the design steps let take a.
Design a socket and spigot cotter joint to connect two steel rods of equal diameter. Sleeve cotter joint pdf the working of the cotter andsleeve and cotter and gib are shown below. Some of the parts are a bit more challenging than others, but none of them are meant to be difficult. Sleeve and cotter joint and its design engineers gallery. Sometimes, a sleeve and cotter joint as shown in fig. 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. Presentation mode open print download current view. 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. Also in our syllabus there is only one cotter joint for joining square or rectangular rods and it is called. Spigot and socket joint cotter joint rods, having axial tensile or compressive forces are connected by cotter joints. Mechanical joints may be temporary or permanent, most types are designed to be disassembled. I am uploaded cotter joint assembly part files and assembly files. Restrained socket joints 9 restrained socket joints 9.
Cotter and knuckle joint cotter and knuckle joints 431 1. Cotter joints can be quickly assembled as well as disassembled. The bearing stud is tapered and threaded, and fits into a tapered hole in the steering knuckle. 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. Design of socket and spigot joint bending mechanics scribd. Let p load carried by the rods, d diameter of the rods, d1 outside diameter of sleeve, d2 diameter of the enlarged end of rod, t thickness of cotter, l length of cotter, b width of cotter, a distance of the rod end from the beginning to the cotter hole.
Now, let us learn more about the sleeve and cotter joint rzqordghgiurpzzz vwxglhvwrgd\ frp. 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. The assembly and dismantling of parts of the cotter joint is quick and simple. Sleeve cotter joint pdf the working of the cotter and sleeve and cotter and gib are shown below. The cotter is locked in position by means of a screw as shown in fig. If you do not find the answer to your questions in the manual, feel free to contact us or your local distributor. 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. Design a cotter joint of socket and spigot type, which may be subjected to a pill or push of 30 kn. Explain the design process for knuckle joint with neat sketch. When the cotter is hammered, the rods are drawn together and tightened. Keys, cotters and pin joints 111 engineering design, iit.
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