Blade connection for a rotor blade of a wind turbine

Abstract

A blade connection for a rotor blade of a wind turbine having a plurality of receptacles which extend in the longitudinal direction of the rotor blade and can each receive a longitudinal bolt and are in contact with a component having an inner thread for the longitudinal bolt. The rotor blade is manufactured from two materials, at least in the region of the blade connection, wherein a first material is a composite material, and a second material is a composite material provided with at least one reinforcement layer made of metal and/or ceramic. The receptacles are composed of the first material and the second material is bonded to the first material.

1 - 9 . (canceled) 
     
     
         10 . A blade connection for a rotor blade of a wind turbine, said rotor blade defining a longitudinal direction and having a blade connection region, said blade connection comprising:
 a plurality of longitudinal bolts;   a plurality of threaded components each having an inner thread configured for one said longitudinal bolts,   each one of said threaded components being configured as a transverse pin having an opening to the inner thread thereof;   a plurality of receptacles extending in said longitudinal direction of said rotor blade and each one of said receptacles being configured to receive one of said threaded components and one of said longitudinal bolts,   each one of said receptacles including a first receptacle portion extending in the longitudinal direction for accommodating a corresponding one of said longitudinal bolts therein and a second receptacle portion running transversely to said first receptacle portion for accommodating a corresponding one of said transverse pins therein;   said rotor blade being, at least in said connection region, made of a first material and a second material;   said first material being a composite material and having a first rigidity;   said second material being a hybrid laminate material having at least one reinforcement layer of said at least one of metal and ceramic and said second material having a second rigidity greater than said first rigidity of said first material;   said first material defining said first receptacle portion;   said second material being bonded to said first material; and,   said second material defining a wall formed therein at least partially delimiting said second receptacle portion.   
     
     
         11 . The blade connection according to  claim 10 , wherein said first material is a fiber-reinforced composite material. 
     
     
         12 . The blade connection of  claim 10 , wherein said first material runs in a circular cylinder shape in said blade connection and has an inner surface and an outer surface: and said second material also runs in a circular cylinder shape and is bonded to at least one of said inner surface and said outer surface of said first material. 
     
     
         13 . The blade connection of  claim 12 , wherein said wall of said second receptacle portion has respective end sections formed by said second material. 
     
     
         14 . The blade connection of  claim 10 , wherein said threaded components are each configured as a sleeve defining said inner thread and are each arranged in a corresponding one of said receptacles. 
     
     
         15 . The blade connection of  claim 10 , wherein said first material defines a wall formed therein delimiting the remainder of said second receptacle portion.