Quick adjust root plate attachment for wind turbine blade molds
The present disclosure provides for a root plate assembly system, an axially adjustable, rigid connection between a metallic (e.g. steel) root plate and a composite root flange of a wind turbine blade mold. The system includes a root plate including a flange portion with at least one aperture disposed therein. The system includes a sealing collar disposed within the aperture in the root plate. The system includes at least one washer having a larger diameter than the aperture in the root plate. The system includes a threaded collar having a longitudinally extending channel and threads on an outer surfaces thereof. The system includes a fastener disposed at least partially within the longitudinally extending channel of the threaded collar. The system includes a locknut disposed above the fastener abutting the fastener and a bolt cover disposed over the locknut, the bolt cover abutting the collar.
1. A root plate assembly system for a wind turbine blade comprising:
a root plate, the root plate comprising a flange portion with at least one aperture disposed therein;
a sealing collar, the sealing collar disposed within the aperture in the root plate;
at least one washer, the washer comprising a larger diameter than the aperture in the root plate;
a threaded collar, the threaded collar comprising a longitudinally extending channel and threads on an outer surface thereof;
a fastener disposed at least partially within the longitudinally extending channel of the threaded collar;
a locknut disposed above the fastener, the locknut abutting the fastener; and
a bolt cover disposed over the locknut to enclose the threaded collar.
2. The root plate assembly system of claim 1 , wherein the threaded collar comprises a first portion comprising a first diameter and a second portion comprising a second diameter, defining an interior shelf therebetween.
3. The root plate assembly system of claim 2 , wherein the fastener comprises a head portion and a stem portion, the head portion abutting a shelf of the threaded collar.
4. The root plate assembly system of claim 1 , further comprising a root flange, the root flange disposed adjacent the root plate.
5. The root plate assembly system of claim 4 , further comprising an infused root plate, the infused root plate disposed adjacent the root flange.
6. The root plate assembly system of claim 5 , wherein the distal end of the fastener comprises threads, the fastener threads configured to engage interior threads of the infused root plate.
7. The root plate assembly system of claim 1 , wherein the locknut inhibits relative movement between the threaded collar and the root plate.
8. The root plate assembly system of claim 1 , wherein the locknut comprises a diameter larger than the head of the fastener.
9. The root plate assembly system of claim 1 , wherein the locknut comprises a diameter equivalent to a diameter of the threaded collar.
10. The root plate assembly system of claim 1 , wherein the sealing collar comprises an internal diameter larger than the outer diameter of the threaded collar.
11. The root plate assembly system of claim 1 , wherein each of the fastener, the threaded collar, the sealing collar and the at least one washer are axially aligned in a concentric configuration.
12. The root plate assembly system of claim 1 , wherein a distal end of the threaded collar comprises a non-threaded skirt portion.
13. The root plate assembly system of claim 1 , wherein a distal end of the threaded collar comprises a non-threaded conical portion.
14. The root plate assembly system of claim 1 , further including a spherical washer disposed between the threaded collar and the root flange.
15. The root plate assembly system of claim 14 , wherein the spherical washer comprises an outer diameter less than the outer diameter of the threaded collar.
16. The root plate assembly system of claim 1 , the threaded collar is fixed to the infused root plate.