Keys cotters and pin joints pdf files

We also now have two thinner versions of the 15mm and 18mm joints ideal for smaller bears particularly in the arms where there is less room for joint discs. Keys are also employed to secure gears, pulleys, discs, flange and other similar parts to shafts or axles. Design procedure of cotter joint, socket and spigot joint. 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. In the last lecture, we have learnt how to design a pin joint. Inserting cotter pin joints into a teddy bear youtube. Venketa reddy written by three distinguished authors with ample academic and teaching experience, this text book deals with the fundamentals of engineering drawing to begin with, followed by introduction of machine drawing systematically and incorporating the latest draughting standards. Microsoft word cottersleeve joint and unversal coupling. If the hole and key are tapered, the key is referred to as a dutch pin, which is. Following are the three commonly used cotter joints to connect two rods by a cotter. Keys cotter joints mechanical engineering manufactured goods. Threaded fasteners bolted joints including eccentric loading, knuckle joints, cotter joints welded.

In mechanical engineering, a key is a machine element used to connect a rotating machine. The cotterjoint does not permit any axial misalignment as it is the rigidjoint. As with the structure itself, a key skill is to be able to visually separate. A keyed joint may allow relative axial movement between the parts. A number of standard documents are available for the selection. Cotter and pin joint assembly drawing,online education youtube. Cotterjoints and pin joints are used for rods in tensile or compressive load. A short video showing how to insert cotter pin joints into a teddy bear to make the head, arms and legs moveable the same process can be used for other toy animals and dolls. The cotterjoint does not permit any axial misalignment as it is the.

A shoulder bolt can act as a shaft or element of a linkage pin. Knuckle joint is yet another to join rods to carry axial force. A mechanical joint is a part of a machine which is used to connect one. A key is a piece of mild steel inserted between the shaft and hub or boss of the pulley. Keys, cotters and pin joints 111 indian institute of. It is named so because of its freedom to move or rotate around the pin which joins two rods, a motion which naturally exists at finger joints or knee. It is named so because of its freedom to move or rotate around the pin which joins two. The pinjoint permits angular misalignment as it is flexiblejoint. Now this kind of cotter joint is known as a socket and spigot type cotter joint. As a visualization tool for a joint of which are unsure. The material used for the joint may be steel or wrought.