A gib is used along with the cotter to make this joint. Cotter joint is widely used to connect the piston rod and cross head of the steam engine, so as a joint between the piston rod and the tailor pump rod, foundation bolt etc. It is also used to connect a rod on one side with some machine part like a crosshead or base plate on the. Following are the three commonly used cotter joints to connect two rods by a cotter. 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. 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. Dec 30, 2017 may 01, 2020 cotter and knuckle joint part 1 mechanical engineering notes edurev is made by best teachers of mechanical engineering. Cotter joints a cotter is a flat wedgeshaped piece of steel this is used to connect rigidly two rods which transmit motion in the axial direction, without rotation. Mar 06, 2017 hello dosto, mera name h ankit ras aur le k aaya hu mechanical guru ka ek aur latest episode aur ajj hum baat karenge.
A hinged joint in which a pin fastens the ends of two rods, one of which has an eye that fits between the two perforated projections of the. Gib and cotter joint for rectangular rodsgib and cotter joint for rectangular rods one bar end is made in the form of a strap a gib is used along with the cotter. Sleeve cotter joint pdf the working of the cotter and sleeve and cotter and gib are shown below. Cut section of socket and spigot joint 3272012 2 hareesha n g, dsce, blore78. The low chamfer angle of the wedge assures tightness of the joint and provides selfbraking, which prevents the wedge from falling out. Here is the diagram showing the exploded view of knuckle joint. View notes cotter and knuckle joint from none at lovely professional university. Most mechanical joints are designed to allow relative movement of these mechanical parts of the machine in one degree of freedom, and restrict. A cotter joint is used to connect two coaxial rods, which are subjected to either axial tensile force or axial compressive force. Gib is likely a cotter but with two gib heads at its ends. Keys, cotter and unit 5 key, cotter and knuckle knuckle. In knuckle joint the two views of which are shown in fig. The subject of this project is the modeling and analysis of cotter joint. It has socket end,spigot end and cotter as main parts.
The function of rivets in a joint is to make a connection. Sir, what do you mean by fs in the knuckle joint assembly drawing. Please wash your hands and practise social distancing. Sleeve and cotter joint is a type of joint used to typically connect two similar coaxial cylindrical rods. Jan, 2017 in this article,design procedure for knuckle joint and cotter joint were explained in a detailed manner with the help of videos stay safe and healthy. Jul, 2017 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. As seen in the assembly the knuckle joint has main four parts. Basically, cotter joint is used in which there is no angular displacement between two rod o the other hand the knuckle joint is used in which there is necessity of angular displacement for e. Cotter joint article about cotter joint by the free dictionary. Cotter joint a detachable joint that is fastened or adjusted by a wedge. Gib is like a cotter but with two gibgib is like a cotter but with two gib heads at its ends.
Cotter joint is a flat wedge shaped piece of steel. 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. Images are taken from version 2 me, iit kharagpur research paper. Sleeve and cotter joint, socket and spigot joint and knuckle joint drawn by r. If the lower ball stud nut cotter pin is present on both sides, proceed to step 8.
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. A cotter joint is a simple and compact connection and is easily assembled and disassembled. Cotter joints use a transverse wedge with cylindrical or conical surfaces, and a longitudinal wedge. What are the practical application of cotter joint. Sleeve cotter joint pdf the working of the cotterandsleeve and cotterand gib are shown below. Design of various types of riveted joints under different static loading conditions, eccentrically loaded riveted joints. These joints may be subjected to tensile or compressive forces along the axes of the rods. Chapter 7 cotter and knuckle joints machine design. Cotter joint is used to connect two rods or components which are subjected to tension or compression.
Cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. 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. Remove the tire ball joint located under the axle, attached to the lower control arm use pliers or grips, rip out cotter bin unbolt the nut use a ball. Mar 27, 2012 cotter and knuckle joints hareesha n g dept. A colour monitor with highest 32 bit colour display and with screen resolution 1024 by 768 pixels. In the whole assembly the cotter is the part with least material and easy to replace, hence for this economical and practical reason cotter is kept weakest, so that it can be replaced on failure. 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. Mechanical joints may be temporary or permanent, most types are designed to be disassembled. Service update 16167 missing cotter pin on front lower. Cotter joint is widely used to connect the piston rod and cross head of. Knuckle and cotter joint free download as word doc. Design procedure of cotter joint, socket and spigot joint.
Cotter and knuckle joint cotter and knuckle joints 431 1. Cotter joint piston tension physics free 30day trial. Failure of cotter joint may causes accident, so it is necessary to design cotter joint to withstand under tension without failure the effective design of mechanical device. 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. To create the knuckle joint assembly as a 3d solid model using catia v5 software. It contains a sleeve and two wedge shaped tapered cotters. Cotter joint article about cotter joint by the free. Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. Verify the lower ball stud nut cotter pin 3 is present on both front lower control arm ball studs 1.
When there is a requirement of a small amount of flexibility or angular moment, knuckle joint is used. The knuckle joint is a type of joint which is used in steering system in between the steering rod and pinion of the steering gear, as the line of the action axis of both the mechanical parts are intersecting and lies in different planes, so it is. 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. Gib and cotter joints are used for rods of square or rectangular cross section. Jul 03, 2015 sleeve and cotter joint, socket and spigot joint and knuckle joint drawn by r. Cotter joints may be used in areas subject to corrosion during operation, resulting in difficulty in turning rusty bolts and nuts of threaded connections. Some standard proportions for dimensions of the knuckle joint are taken as. Cotter and knuckle joints understanding engineers gallery. May 01, 2020 cotter and knuckle joint part 1 mechanical engineering notes edurev is made by best teachers of mechanical engineering. Like the concept on the cotter pin nice job 22 jul 2011 11.
Appropriate slots are cut in the sleeve and in the cylindrical rods. Knuckle joint is a type of joint which is used in steering system in. The cotter is usually made of mild steel or wrought iron. For making the joint, the eye end of the rod is aligned into the fork end of the other and then the pin is inserted through the holes. Cotter joints are the joints made with the help of cotter. Dimensions can be determined using these empirical relations and the strength equations can be then used as a check. May 11, 2020 chapter 7 cotter and knuckle joints machine design, mechanical engineering mechanical engineering notes edurev is made by best teachers of mechanical engineering. A cotter is a flat wedge shaped piece of rectangular crosssection and its width is tapered either on one side. Hello dosto, mera name h ankit ras aur le k aaya hu mechanical guru ka ek aur latest episode aur ajj hum baat karenge. Cotter and knuckle joint part 1 mechanical engineering.
View ats5 types of keys, cotter and knuckle joints1. In this joint, one end of the rod is formed into an eye and the other into a fork double eye. This document is highly rated by mechanical engineering students and has been viewed 250 times. A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another. Ppt knuckle joint powerpoint presentation free to view. Knuckle joint cotter joint 1 it takes only tensile load it takes tensile as well as compressive load. 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. Cotter joint is used to connect two rods subjected to axial tensile or compressive loads. Joints types of joints temporary joint semi permanent joint. Cotter joint cotter and knuckle joints are fasteners used to connect two roads transmitting axial force.
1524 713 110 761 198 389 223 115 750 87 1394 588 698 1181 630 239 788 1301 1068 1020 1260 549 1205 432 547 1561 1554 1484 662 580 1312 761 1377 1211 94 381 367 320 1268