Common Mechanical Failures in Wind Turbines and Their Solutions

Excessive bearing temperature rise:

Bearings support seat severe vibration.

② Poor quality lubricating oil, deterioration, presence of dust, sand, dirt, and other impurities; excessive or insufficient tension on the bearing housing connecting bolts; bearing operation with insufficient oil.

Axle and bearing installation is skewed, with the front and rear axle bearings not concentric.

④ Bearings are damaged or have reached their lifespan.

⑤ The fan shaft and motor shaft are unbalanced, and the belt groove is misaligned.

2. Turbine Vibration

Impeller imbalance

②Loose impeller screws or deformed wheel disc and blades.

③ Insufficient or unstable basic rigidity;

④Shell and bracket bearing connection bolts are loose.

Suspension misplacement causes center of gravity shift

3. Impeller Polishing

Impeller imbalance or deformation

②Shell or inlet with impeller friction;

③ Blade impeller reversal leads to loosening of blade fasteners.

④ Impeller shaft bore and shaft looseness

⑤ Poor installation of the fan's intake and exhaust air ducts.