A universal joint is a mechanical device that allows one or more rotating shafts to be linked together, allowing the transmission of torque or rotary motion. Universal joint also allows for transmission of power between two points that are not in line with each other. As universal joint is the core of the machine, how can we fix or even replace universal joint? Can we do it by ourselves when universal joint goes wrong?
As universal joint is the heart of the machine, it is necessary for us to know the working principal of universal joint. Invention of universal joints dates back many centuries. Even though the universal joint’s mechanism seems simple, the physics behind this mechanism are rather complicated and interesting. We will understand the working of universal joints in a simple yet logical manner.
Universal joint is a mechanism for variable angle power transmission, which is used to change the direction of the transmission system, as the "joint" part of the car drive system. Universal joints will withstand various forces, such as torsion and centrifugal force, during high-speed motion. Universal joint is located in the active area and is subject to harsh working conditions, which is easy to wear and fragile.
Why are universal couplings widely used? Universal couplings are just like the joints of human hands and legs, and the structure of the machine is different from humans. They have different functions and different forms. Therefore, the universal couplings used on the machine are far more than ours.