To tighten the cable or stay ropes of electric distribution poles. Cotter joint is a flat wedge shaped piece of steel. Cotter joints are the joints made with the help of cotter. Knuckle joint pin starting ansys 6 the main utility window can be broken up into three areas. 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. Pdf dimensional calculations of knuckle joint assembly by. Cotter and knuckle joints understanding engineers gallery. Cotter joint is used to connect two rods or components which are subjected to tension or compression. Manufacturers usually have a model number for each type of knuckle joint they manufacture. Contents contents cotter and knuckle joints c h a p t e r n 431 12 cotter and knuckle joints 1. A knuckle joint is a mechanical joint used to connect two rods which are under a tensile load, when there is a requirement of small amount of flexibility, or angular moment is necessary. View notes ch12 from mechanical 403 at anna university chennai regional office, coimbatore. Cotter joint free download as powerpoint presentation. Knuckle joint is yet another to join rods to carry axial force.
Ch12 contents contents cotter and knuckle joints c h a p t. Knuckle joint maximum bending stress calculator fx solver. The enlarged ends of the rods butt against each other with a common sleeve over them. Cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. Mar 27, 2012 cotter and knuckle joints hareesha n g dept. A knuckle joint is used to connect two rods which are under a tensile load. Nov 07, 2009 cotter joint a cotter joint is used to connect rigidly two coaxial rods or bars which are subjected to axial tensile or compressive forces. The grabcad library offers millions of free cad designs, cad files, and 3d models. Modeling and analysis of cotter joint written by pratikraje ashokrao shinde, omkar chandrakant vibhute. 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 joint is a simple and compact connection and is easily assembled and disassembled. Cut section of socket and spigot joint 3272012 2 hareesha n g, dsce, blore78.
A knuckle joint is used to connect the two rods which are under the tensile load when there is requirement of a small amount of flexibility or when angular movement is necessary. Design procedure of knuckle joint design of machine youtube. This permits design of the motion characteristics in accordance with the requirements of the parts to be. Looking for downloadable 3d printing models, designs, and cad files. It has socket end,spigot end and cotter as main parts. Knuckle joint article about knuckle joint by the free. As a common practice for plate thickness greater than. Instructions the parts and assembly of the cotter joint is. A mechanical joint is a section of a machine which is used to connect one or more mechanical. Following are the three commonly used cotter joints to connect two rods by a cotter.
Assume there is no clearance or slack but in actual, knuckle pin is loose in forks to permit angular moment of one with respect to other, so it is. The cotter is locked in position by means of a screw as shown in fig. Cotter joints may be used in areas subject to corrosion during operation, resulting in difficulty in turning rusty bolts and nuts of threaded connections. Knuckle joint can be classified into a large number of types based on its size, shape, specification, application and other criteria. In this article, i am going to publish the detailed design procedure for knuckle joint. A cotter is a flat wedge shaped piece of rectangular crosssection and its width is tapered either on one side. Knuckle joints, check out the variety of configurable, knuckle joints for industrial applications.
Study and analysis of pin of knuckle joint in train 1ravindra s. Join the grabcad community today to gain access and download. Cotter gets locked because of the frictional force of the contacting surfaces. What are the practical application of cotter joint. View notes cotter and knuckle joint from none at lovely professional university. When there is a requirement of a small amount of flexibility or angular moment, knuckle joint is used. The parts and assembly of the knuckle joint and ballandsocket joint are shown below. Nagpur abstract the current paper presents the problem of the failure of the knuckle pin in a railway coupling due to shearing. Cotter joints are used to connect two rods, subjected to tensile or compressive forces along their. 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. A free powerpoint ppt presentation displayed as a flash slide show on id. Final dimension from theoretical calculation of knuckle joint. In order to find out various dimensions of the parts of a knuckle joint, failures in different parts and at different xsections are considered. Cotter joints use a transverse wedge with cylindrical or conical surfaces, and a longitudinal wedge.
Very high tightening force due to wedge action, which prevents loosening of parts in service. Study and analysis of pin of knuckle joint in train. Knuckle joint maximum bending stress calculator fx. The joint allows a small angular moment of one rod relative to another. However, if we assume a triangular pressure distribution over the rod, as shown in. When this occurs, the bending moment cannot be correctly estimated since the pressure distribution is not.
It is a kind of hinged joint between two rods, often like a ball and socket joint. Mechanical forging presses with knuckle joint partspecific motion characteristics. A knuckle joint is used to connect two rods which are under the action of tensile loads. Explore the constraint window in inventor and assemble the ballandsocket joint.
Knuckle joint introduction, parts and applications. During transportation variable stresses act on knuckle joint which causes failure of joint. Design of cotter joint free download as powerpoint presentation. Cotter joint article about cotter joint by the free dictionary. Misumi offers free cad download, short lead times, competitive pricing, and no minimum order quantity. Ppt knuckle joint powerpoint presentation free to view. A knuckle joint may be readily disconnected for adjustments or repairs. May 08, 2017 the cotter is usually made of mild steel or wrought iron. There is always axial or linear line of action of load. Dimensional calculations of knuckle joint assembly by using c programming for academic problem purpose article pdf available january 2018 with 7,834 reads how we measure reads. 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. Video lecture on design procedure of knuckle joint from design of cotter joint, knuckle joint,levers and offset links chapter of design of.
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. A knuckle joint is a mechanical joint used to connect two rods which are under a tensile load, when there is a requirement of small amount of flexibility. Design of cotter joint bending strength of materials. Dimensional calculations of knuckle joint assembly by using c programming for academic problem purpose article pdf available january 2018. In this tutorial the assembly of three important components of a cotter. The knuckle joint assembly consists of the following major components. Sleeve cotter joint pdf the working of the cotter and sleeve and cotter and gib are shown below. 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 knuckle joint is used to connect the two rods which are under the tensile. Knuckle joint is used for connecting two rods whose axes. This increases the bearing area and permits drilling while making the slots. Mar 29, 2014 cotter joint is a temporary fastening device used to connect two shafts subjected to axial tensile or compressive loads. Knuckle and ballandsocket joints indian institute of. The link drive system of the mml2 developed by schuler can be made very flexible during the design of the press.
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