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What is sleeve and cotter joint?
SLEEVE AND COTTER JOINT IS A TYPE OF JOINT USED TO TYPICALLY CONNECT TWO SIMILAR COAXIAL CYLINDRICAL RODS. IT CONTAINS A SLEEVE AND TWO WEDGE SHAPED TAPERED COTTERS. APPROPRIATE SLOTS ARE CUT IN THE SLEEVE AND IN THE CYLINDRICAL RODS. THE COTTERS ARE ASSEMBLED INTO THESE SLOTS.
Where is cotter joint used?
It is used to connect two rods of equal diameters subjected to axial forces. The cotter joint is used to connect the piston rod’s extension with the connecting rod in the crosshead in an automobile engine. Cotter joint historically used to connect connecting rods in steam engines and pumps for draining mines.
What are the steps involved in sleeve and cotter joint design procedure?
In this type of joint, a sleeve or muff is used over the two rods and then two cotters (one on each rod end) are inserted in the holes provided for them in the sleeve and rods. The taper of cotter is usually 1 in 24.
What are the types of cotter joint?
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.
How many parts are there in sleeve and cotter joint?
This joint is applicable for tensile loads as well as compressive loads. It is a detachable joints. It consists of mainly three parts – i) Spigot ii) Socket iii) Cotter.
What is the length of cotter in a sleeve and cotter joint?
The various proportions for the sleeve and cotter joint in terms of the diameter of rod (d) are as follows : Outside diameter of sleeve, d1 = 2.5 d Diameter of enlarged end of rod, d2 = Inside diameter of sleeve = 1.25 d Length of sleeve, L = 8 d Thickness of cotter, t = d2 4 or 0.31 d Width of cotter, b = 1.25 d …
Are cotter joint is used to transmit?
Cotter joints are used to support axial loads between the two rods, tensile or compressive. Although a cotter joint will resist rotation of one rod relative to the other, it should not be used to join rotating shafts.
Why gibs are used in cotter joint?
Moreover, gibs provide a larger bearing surface for the cotter to slide on, due to the increased holding power. Thus, the tendency of cotter to slacken back owing to friction is considerably decreased. The jib, also, enables parallel holes to be used.
Which one is not part of cotter joint?
Which of the following is not a part of cotter joint? Explanation: There is no point of mentioning collar alone in a cotter joint. It has to be a spigot collar or socket collar. 5.
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 does cotter joint transmit?
A cotter is a flat wedge-shaped piece of steel as shown in figure-4.2. 1.1. This is used to connect rigidly two rods which transmit motion in the axial direction, without rotation. These joints may be subjected to tensile or compressive forces along the axes of the rods.
What is knuckle joint and its application?
A knuckle joint is a form of pin joint that’s used to transmit tension loads while allowing rotation in one plane. 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.