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. Introduction cotter joint a cotter is a flat wedge. A gib is used along with the cotter to make this joint. A cotter is driven tightly through the slots in the rods which are kept slightly mis aligned. The low chamfer angle of the wedge assures tightness of the joint and provides selfbraking, which prevents the wedge from falling out. Some of the parts are a bit more challenging than others, but none of them are meant to be difficult. 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.
Free download online attendance management system for employees in php project. Socket and spigot joint assembly and sectional views for more machine drawing videos. Mount cotter, a mountain in california, united states. This is the model of a cotter i designed for the first time according to the design considerations from the mechanical engineering data book. Plates joined together by means of a riveted joint cannot be. The cotter is usually made of mild steel or wrought iron. 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, foundation bolt etc. So you can deliberatley make a bear with loose joints, so the arms swing around, or you can joint tight. Mechanical joints may be temporary or permanent, most types are designed to be disassembled.
In a butt joint edges of the plates to be connected butt against each other and the joint between them is covered by butt plates. Rivets are used to fasten permanently two or more plates. Gib is likely a cotter but with two gib heads at its ends. The cotter is locked in position by means of a screw as shown in fig. Ppt cotter joint powerpoint presentation free to view. 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. Cotter joint uses one or two cotters to connect two rods rigidly transmitting forces and motion, with no rotation of the rods 3. A set of 10mm cotter pin joints enable your creation have moving arms, legs and head.
Cotter joint article about cotter joint by the free. What is the difference between cotter joint answer sahil knuckle joint is used to connect two rods whose axes either coincide or intersect and lie in one plane, which are subjected to transmit axial tensile force on other hand cotter joint is used to connect two coaxial rods, which are subjected to either axial force or axial compressive. You can buy five 10mm cotter pin joints that contains 5 cotter pins and 10 fibre board disks enough for 5 joints, eg two arms, two legs and one head. Cotter pin disambiguation, a pin or wedge used to fix parts rigidly together cotter farmer, the scots term for a peasant farmer formerly in the scottish highlands cotter surname, a surname including a list of people with the name cotter, arkansas, united states. Instructions the parts and assembly of the cotter joint is. What is a cotter joints a cotter is a flag wedge shaped piece of steel. Design procedure of cotter joint with 3d visualization of different type of failures in different parts of joint. Sleeve and cotter joint is a type of joint used to typically connect two similar coaxial cylindrical rods. Cottered joint article about cottered joint by the free dictionary. Autocad mechanical practice drawings pdf free download. Cut section of socket and spigot joint 3272012 2 hareesha n g, dsce, blore78. A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another. Someone please correct me if im wrong, ive never used a plastic safety joint. Scribd is the worlds largest social reading and publishing site.
Cotter and knuckle joint part 1 mechanical engineering. Appropriate slots are cut in the sleeve and in the cylindrical rods. Free download ankle joint powerpoint presentation slides. Knuckle joint can be classified into a large number of types based on its size, shape, specification, application and other criteria. This document is highly rated by mechanical engineering students and has been viewed 249 times. Design of socket and spigot cotter joint chinmayacademy. A design procedure of cotter joint cotter joint introduction before going into detailed steps to design and find dimensions of cotter joint, it is necessary to understand clearly the various components, their functions and assembly of cotter joint. A free powerpoint ppt presentation displayed as a flash slide show on id. Displaying powerpoint presentation on introduction cotter joint a is flat wedge shaped piece available to view or download. Cotter and knuckle joints authorstream presentation. Ppt cotter joint powerpoint presentation, free download. Cottered joint article about cottered joint by the free. Cotter joint with a gib gib and cotter joints are used for rods of square or rectangular cross section.
Design of cotter joint to connect piston rod and crosshead. Assembled cottered joint cotter joint modes of failure cotter joint modes of failure cotter joint modes of failure cotter joint. This increases the bearing area and permits drilling while making the slots. Cotter joints are used to connect two rods, subjected to tensile or compressive forces along their.
Cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. 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. What are the practical application of cotter joint. Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. 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. View notes cotter and knuckle joint from none at lovely professional university. In hindi design procedure of socket and spigot cotter joint ab classesdesign of. Cotter jointsnut and bolts are more traditional and they give you more control on how tight or loose a joint is.
Presentations ppt, key, pdf logging in or signing up. 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. Cotter and knuckle joint cotter and knuckle joints 431 1. Cotter joint a detachable joint that is fastened or adjusted by a wedge. Ppt cotter%20joint powerpoint presentation free to. It contains a sleeve and two wedge shaped tapered cotters. 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. Download introduction cotter joint a is flat wedge shaped piece ppt for free. Socket and spigot cotter joint is used to connect circular rods. Knuckle joint introduction, parts and applications. Manufacturers usually have a model number for each type of knuckle joint they manufacture. A socket is formed by expanding the end of one rod in which the spigotend of the other rod is inserted.
A cotter joint is a simple and compact connection and is easily assembled and disassembled. Apr 11, 2020 cotter and knuckle joint part 1 mechanical engineering notes edurev is made by best teachers of mechanical engineering. A joint in which a cotter, usually a flat bar tapered on one side to ensure a tight fit, transmits power by shear on an area at right angles to its length explanation of cottered joint. Spigot is formed on one of the rods and socket is formed on the other. Autocad mechanical practice drawings pdf free download autocad exercise book.
1500 685 320 754 1405 1002 1473 1024 1015 1467 1249 121 683 185 46 650 141 841 1344 1468 540 1343 1210 222 24 182 369 1213 597 1093 983 207 65 856 812 824 929 1384 527 656 103 1174 1116 680 192 249 122 265