Method for repairing the root of a blade

A method of repairing the root of a blade, which is attached to the rotor hub of a wind turbine by means of bolts inserted in threaded cups integrated into the root, characterized in that once the blade has been separated from the rotor hub and descended to the ground, comprising:

• removing all the bolts,
• cutting transversely a section of the blade that includes the threaded cups,
• cleaning up the area adjacent to the cut,
• laminating the cleaned area by joining prefabricated sectors with their corresponding holes and infusing the laminate,
• machining the laminate with a long bore in the longitudinal axis and a short and through bore in the radial axis,
• adding an adapter formed by a ring with through holes on its entire surface, which has connection points at its ends, one at the root of the blade with T-bolts and another for the bushing part with the bolts in the threaded cups,
• installing the adapter, first adding the bolts at the end of the root of the blade, threading the barrel and then the nut with its corresponding washer, then the bolts are threaded and assembled to the bushing with their corresponding nuts.