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. The applications of the sleeve and cotter joint is the joint between the piston rod and crosshead of the engine. 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. Instructions the parts and assembly of the cotter joint is. Craig cotter, commanding officer of the joint manufacturing technology center. Steels and cast irons are both primarily iron with carbon as the main alloying element. A cotter joint is a simple and compact connection and is easily assembled and disassembled. B 03 design of shafts, keys and couplings,spur gears and pulley. The ends of the two rods are inserted from opposite sides in a. It has socket end,spigot end and cotter as main parts. When there is a requirement of a small amount of flexibility or angular moment, knuckle joint is used. The choice of the correct fastener will decide the success of your project. Manufacturing method of cotter joint1 forging piston.
Design an d draw a cotter joint to support a load varying from 30 n in compression to 30 kn in tension. Design of knuckle joint a knuckle joint is used to connect two rods which are under the action of tensile load, when small amount of flexibility or angular moment is necessary. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. This is the simplest form of cotter joint used for fastening the two circular rods. The cotter joint to connect piston rod and cross head is shown in fig. The cotter is usually made of mild steel or wrought iron.
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. 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. Mechanical joints may be temporary or permanent, most types are designed to be disassembled. Design of cotter joint to connect piston rod and crosshead.
Some of the parts are a bit more challenging than others, but none of them are meant to be difficult. 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. Redraw the two views of above drawing by cutting along broken lines producing plates 15 mm wide. Jadhav akshaytm114 jadhav amit tm115 jadhav ajay tm1 cotter joint a cotter joints is a flat wedge link piece of steel of. Manufacturing method of cotter joint1 free download as powerpoint presentation. Home tags manufacturing processes for design professionals by rob thompson pdf. With autodesk gallery, you can view and present 3d model and file easily online. Clearances are absolutely required for proper functioning of the joint. It is uniform in thickness but tapering in width, generally on one side only. Screw is a piece consisting of a cylindrical body and a screw head, which can take many forms.
Failure of cotter joint may causes accident, so it is necessary to design cotter joint to. 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. Design of various types of riveted joints under different static loading conditions. Mohair bear making supplies limited cotter t pin joints. Joint replacement guidebook via christi joint replacement center via christi hospital st.
Knuckle joint is a type of mechanical joint used in structures, to connect two intersecting cylindrical rods, whose axes lie on the same plane. 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. Autocad mechanical practice drawings pdf free download autocad exercise book. Which material is used for manufacturing of knuckle joint.
Dec 30, 2017 these joints may be subjected to tensile or compressive forces along the axes of the rods. Manufacturing method of cotter joint1 forging piston scribd. Autocad mechanical practice drawings pdf free download. 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. The low chamfer angle of the wedge assures tightness of the joint and provides selfbraking, which prevents the wedge from falling out.
Cotter joints are used to connect two rods, subjected to tensile or compressive forces along their. The official platform from autodesk for designers and engineers to share and download 3d models, rendering pictures, cad files, cad model and other related materials. 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. The fasteners are a critical machine element in any mechanical project. Design procedure of cotter joint, socket and spigot joint design of machine duration. Manufacturing method of cotter joint copy free download as powerpoint presentation. Most mechanical joints are designed to allow relative movement of these mechanical parts of the machine in one degree of freedom, and restrict. In this article, i will discuss on the design procedure for knuckle joint and cotter joint, and at the end of the article, you can download the pdf. Some standard proportions for dimensions of the knuckle joint are taken as. There are no specific manufacturing companies who make only cotter pins, nor are there any dimensional standards by which they are designed. Each year, more than 700,000 people make the decision to undergo joint replacement surgery.
Manufacturing method of cotter joint copy forging building. Browne, deputy chief engineer of naval sea systems command, tours the rock island arsenal with col. Cotter joint has mainly three components spigot, socket and cotter as shown in figure 9. Cotter joint article about cotter joint by the free. Dimensions can be determined using these empirical relations and the strength equations can be then used as a check. Welcome to the mechanical engineering trending blog. The nut is shaped like a prism or cylinder and presents a threaded hole. The material used is carbo n steel fo r which the fo llow ing a llowable s tresses. Apr 08, 2017 design procedure of cotter joint, socket and spigot joint design of machine duration. Ijsrd international journal for scientific research. In such a type of joint, the piston rod is tapered in order to resist the thrust instead of being. Manufacturing method of knuckle joint manufacturing method of. Steels contain less than 2 and usually less than 1% carbon. 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.
Design procedure of cotter joint, socket and spigot joint. A thermal oxidizer blends several manufacturing processes such as molding, forming, machining, etc. Cotter joint free download as powerpoint presentation. It is specially designed to withstand tensile loads. 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. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Cotter joints may be used in areas subject to corrosion during operation, resulting in difficulty in turning rusty bolts and nuts of threaded connections. Cotter joint article about cotter joint by the free dictionary. Productivity enhancement of knuckle joint using flexible manufacturing system a case study 255 present layout of workspace the arena of the workspace was irregular as everything placed in the shopfloor was zigzag and meshy. Nov 15, 2002 steels and cast irons are both primarily iron with carbon as the main alloying element. Read pdf 1989 audi 100 cotter pins manual stuck cotter pin easy how to remove a stubborn stuck frozen cotter pin from your steering or suspension tie rod ball joint inner and outter upper and. Feb 04, 2017 knuckle joint is a type of mechanical joint used in structures, to connect two intersecting cylindrical rods, whose axes lie on the same plane. The subject of this project is the modeling and analysis of cotter joint.
How to change moving dolly wheel dolly repair dolly fix diy moving dolly wheel change. Cotter and knuckle joint part 1 mechanical engineering. The surgery aims to relieve your pain, restore your independence and return. The products that result from the same production process are termed as joint products or byproducts. In the knuckle joint illustrated, the rods are integral with the eye and fork.
Cotter joint is used to connect two rods subjected to axial tensile or compressive loads. 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. Exploded view of cotter jointmainly cotter joint is manufacture by using. This increases the bearing area and permits drilling while making the slots. The cotter comes in contact with the two rods on opposite sides and leaves clearances on both sides. What are the applications of sleeve and cotter joint answers. I,mohammed shafi, admin,blogger and an assistant professor from the department of mechanical engineering, having 3 years of experience in teaching, in one of the reputed engineering colleges in hyderabad,india want to teach you all the aspects of mechanical engineering. The cotter is locked in position by means of a screw as shown in fig. A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another. It was too difficult to move the job in a simple way. Cotter joints use a transverse wedge with cylindrical or conical surfaces, and a longitudinal wedge. Following are the three commonly used cotter joints to connect two rods by a cotter.
Cotter joint a detachable joint that is fastened or adjusted by a wedge. Cotter joint part designing and assembly in creo parametric 2. Socket and spigot cotter joint is used to connect circular rods. 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. These joints may be subjected to tensile or compressive forces along the axes of the rods.
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