The main shaft is a core transmission component of a wind turbine, with its primary functions including:
1. Transferring Mechanical Energy — Converting the wind energy captured by the rotor (blades + hub) into rotational mechanical energy to drive the generator or gearbox.
2. Connecting the Rotor to the Transmission System — Linking the hub and blades at the front end to the gearbox or generator at the rear end, forming the central pathway for energy transfer.
3. Bearing Dynamic Loads — Withstanding torque, vibrations, bending stresses, and extreme wind loads generated by the blades to ensure structural stability and safety of the system.
