A knuckle joint is a mechanical joint used to connect two rods that are under a tensile load, when a small amount of flexibility is required, or angular momentum is required. There is always an axial or linear load line.
The rapid growth of technology in recent decades has led to a reduction in the cost and weight of materials. The modified system has become popular in industry as well as in research. As a result, this is a reduction in accident and safety has increased. Many systems used in industries use joint articulation which is the combination of two materials: cast iron and stainless steel. Here we propose the modification of one of the materials that is changing the cast iron in a composite polymer material. The proposed system has many advantages over another system like making the device, simpler and have the maximum safety and is respectful of the environment. The analysis of the system demonstrates all the characteristics mentioned above. The reason for considering the polymer is that the property of the polymer is largely similar to the property of the metal. The composite polymers are characterized by a high flexibility material. The revolutionary evolution of technologies in the past year has reduced stress and tension.
A knuckle joint is used to connect two rods which are under the action of tensile loads whereas, if the joint is guided, the compression load can be supported by rods. A knuckle joint can be easily disconnected when necessary. Its applications are the coupling of a cycle chain, joint road junction for roof reinforcement, valve bar joint with eccentric bar, pump bar joint, coupling Of the tension in the structure of the bridge and of the lever and the connection of the bar of several types. At the joints of the knuckles, one end of one of the rods is made in one eye and the end of the other rod is formed in a fork with one eye on each of the legs of the fork. The knuckle pin passes through the eye hole and the fork holes and can be secured by a collar and a conical pin or spade pin. The knuckle pin can be prevented from turning in the fork by means of a small stop, bolt, peg or adjustment. In order to get a better quality of the joint, the sides of the fork and eye are machined, the hole is accurately drilled and rotated pin. The material used for the joint can be made of steel or wrought iron