Torque Limiter for wind turbine
Coupling Torque Limiter (also known as Torque Limiter, Safety Coupling)
A coupling torque limiter is a protective device installed between the motor and the load. When overload, jamming, or impact occurs in the transmission system, it automatically cuts off or limits torque transmission, thereby protecting the safety of the motor, reducer, working machine, and operators.
The advantages of the integral spring design
Reduce the compressive stress on the friction plate.
Reduce the total stiffness of the disc spring.
During the calculation, it is necessary to control the MISES stress and the maximum principal stress of the diaphragm spring to avoid cracking; at the same time, the stiffness should be regulated according to the diaphragm spring displacement to ensure that the friction plate does not exceed the specified wear limit within the specified number of wear cycles, and the torque attenuation does not fall below the lower limit value.
Working Principle
The coupling torque limiter is internally set with a preset torque value. When the load torque exceeds this value, it will act in the following ways:
Slipping
Disconnection
Shear pin fracture
Disengagement of balls or rollers
After actuation, torque transmission is cut off or limited, and the equipment stops or idles, thus avoiding damage.