A KNUCKLE JOINT-
Knuckle joint is used to connect the two rods which are under the tensile load, when there is requirement of small amount of flexibility or angular moment is necessary. There is always axial or linear line of action of load. The knuckle joint assembly consist of following major components :
1.Single eye.
2.Double eye or fork.
3.Knuckle pin.
At one end of the rod the single eye is formed and double eye is formed at the other end of the rod. Both, single and double eye are connected by a pin inserted through eye.The pin has a head at one end and at other end there is a taper pin or split pin. For gripping purpose the ends of the rod are of octagonal forms.Now, when the two eyes are pulled apart, the pin holds them together .The solid rod portion of the joint in this case is much stronger than the portion through which the pin passes.
Application of knuckle joint in tractor.
The modes of failure are :
1.Shear failure of pin (single shear).
2.Crushing of pin against rod.
3.Tensile failure of flat end bar.
Application :
1.Tie rod joint of roof truss.
2.Tension link in bridge structure.
3.Link of roller chain.
4.Tie rod joint of jib crane.
5.The knuckle joint is also used in tractor.
Knuckle joint is used to connect the two rods which are under the tensile load, when there is requirement of small amount of flexibility or angular moment is necessary. There is always axial or linear line of action of load. The knuckle joint assembly consist of following major components :
1.Single eye.
2.Double eye or fork.
3.Knuckle pin.
At one end of the rod the single eye is formed and double eye is formed at the other end of the rod. Both, single and double eye are connected by a pin inserted through eye.The pin has a head at one end and at other end there is a taper pin or split pin. For gripping purpose the ends of the rod are of octagonal forms.Now, when the two eyes are pulled apart, the pin holds them together .The solid rod portion of the joint in this case is much stronger than the portion through which the pin passes.
Application of knuckle joint in tractor.
The modes of failure are :
1.Shear failure of pin (single shear).
2.Crushing of pin against rod.
3.Tensile failure of flat end bar.
Application :
1.Tie rod joint of roof truss.
2.Tension link in bridge structure.
3.Link of roller chain.
4.Tie rod joint of jib crane.
5.The knuckle joint is also used in tractor.
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