Wind turbine
AssigneeNordex Energy Spain, S.A.
InventorsJavier Pascual Resano, Jose Luis Aristegui Lantero, Teresa Arlaban Gabeiras, Jose Miguel Garcia Sayes, Miguel Nunez Polo
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Abstract
The present invention describes a wind turbine comprising a hub, at least one blade and at least one pitch bearing to connect the at least one blade to the hub, the at least one pitch bearing comprising at least an inner ring and an outer ring, and at least a rolling race, wherein the wind turbine further comprises at least a tensioning system configured to exert a radial compression force to at least a part of the outer ring of the at least one pitch bearing, thus increasing the resultant stiffness of the at least one pitch bearing.
Claims9
A wind turbine comprising:
- a hub;
- at least one blade;
- and
- at least one pitch bearing to connect the at least one blade to the hub, the at least one pitch bearing comprising at least an inner ring and an outer ring, and at least a rolling race;
- wherein the wind turbine further comprises at least one tensioning system configured to exert a radial compression force to at least a part of the outer ring of the at least one pitch bearing;
- wherein the at least one tensioning system comprises:
- at least one tensioning element with two ends;
- at least one anchoring element configured to receive at least one of the two ends of the at least one tensioning element;
- and
- at least one fixing element configured to fix the at least one of the two ends of the at least one tensioning element to the at least one anchoring element;
- wherein the at least one tensioning element comprises at least one strand;
- wherein the force applied to the at least one strand is at least 100 kN;
- wherein the at least one tensioning system further comprises at least two strands with at least a respective one of the at least one anchoring element per each of the at least two strands, all of the respective anchoring elements disposed in different regions of a perimeter of the outer ring in a circumferential direction of the at least one pitch bearing.
Dependencies are inferred from the claim text.