Rolling Mill Universal Joint Couplings

The universal joint coupling of a rolling mill is a mechanical device that can achieve continuous rotation and reliably transmit torque in the presence of an axis angle between two shafts. Its unique structure endows it with excellent angular compensation capability, compact structure, and extremely high transmission efficiency. According to industry testing data, high-quality universal couplings can reduce power consumption by 5% -15% in rolling mill applications.

The core characteristics of the universal joint of the rolling mill are:

1. Large angle compensation capability: The angle range between the two axes of universal couplings with different structural types is usually between 5 ° -45 °, which is particularly suitable for axis changes during roll adjustment;
   

2. High torque transmission: The torque capacity of the universal joint used in heavy-duty rolling mills can reach over 1000KN. m (such as SWC490 type);
   

3. Impact resistant design: Adopting an integral fork head structure to eliminate the risk of bolt loosening or breakage, the service life is increased by 30% -50% compared to traditional structures;
   

4. Dynamic balance: After precision dynamic balance testing, the noise level during high-speed operation is controlled at 30-40dB (A).

On the steel rolling production line, universal joint couplings are mainly used for:

1. Main transmission system of rolling mill (connecting motor and gearbox);
   

2. Roller transmission connection (torque transmission from gearbox to roller);
   

3. Auxiliary transmission system (such as roller conveyor, coiler, etc.).

As a widely used type of rolling mill, the cross axis universal joint is further divided into:

1. SWC type: integral fork head structure, completely avoiding the risk of bolt connection failure;
   

2. SWP type: Partial bearing seat structure, easy to maintain;
   

3. SWZ type: integral bearing seat structure, suitable for heavy-duty rolling mill applications.