What are the types of cotter and knuckle joints?

There are three types of cotter joint for connecting two rods by one coater:

  • Socket and spigot cotter joint.
  • Sleeve and cotter joint.
  • Gib and cotter joint.

What is cotter and cotter joint?

A cotter joint, also known as a socket and spigot joint, is a method of temporarily joining two coaxial rods. One rod is fitted with a spigot, which fits inside a socket on one end of the other rod. Slots in the socket and the spigot align so that a cotter can be inserted to lock the two rods together.

Which material is used in cotter joint?

The material selected for cotter joint is plain carbon steel of Grade 30C8 which is having (Syt=400N/mm2), so that cotter joint will fail above (Syt=400N/mm2). By the calculation, we found that maximum force applied is 50KN.

What is the function of knuckle joint?

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. There is always axial or linear line of action of load.

What is function of cotter joint?

FUNCTION- A cotter joint is used to connect one end of a rod is provided with a socket type of end and the other end of the rod is inserted to a socket. The end of the rod which goes into a socket is also called Spigot. . Joints between the piston rod and the cross need of the steam engine.

What is the use of knuckle joint?

Where is knuckle joint used?

Knuckle joints are often used to connect rods subjected to tension in structures such as roof ties, bridges, and cranes. The links of a chain are also considered a series of knuckle joints. Simplicity means that knuckle joints are easily manufactured while being strong and rigid under tension loads.

What are the advantages of knuckle?

Knuckle joint can withstand large tensile loads. It has good mechanical rigidity. It is easy to manufacture and set up. It can be easily dismantled and assembled.

What are the parts of knuckle joint?

Knuckle Joint has mainly three components – eye, fork and pin as shown in Figure 8.1. Eye is formed on one of the rods and fork is formed on the other. Eye fits inside the fork and the pin is passed through both the fork and the eye.

What is knuckle joint made of?

Knuckle joints are made up of cast iron and stainless steel. With the advancements in the field of polymers, Teflon can be used for knuckle joints also.