Methods and systems for assembling a wind turbine blade for a wind turbine, can involve performing a vertical displacement of a blade holder elevator during assembly or disassembly of a wind turbine. The vertical displacement can be performed by a hard connection or a flexible connection. The hard connection can be based on a gyroscopic stability and can include a holder operable based on an ability of a wind turbine blade to freely rotate from a hub end on two axes while being elevated or lowered.

A method of replacing at least one tooth of a gear includes providing a tool jig including a mounting block with a plurality of indexing jig features. The tool jig also includes a tool-supporting feature in laterally movable contact with a jig rail feature. With at least one indexing jig feature, relative motion of the tool jig relative to the gear is resisted. A material-removal tool is operated, while attached to the tool-supporting feature in the tooth-removal position, to remove at least a portion of a working circumference of the gear including a native gear tooth to be replaced. Motion of the material-removal tool is guided to generate a circumferential gear cut including a relatively smooth first cut surface formed by removal of at least the native gear tooth to be replaced. The material-removal tool is removed from the tool-supporting feature. The tool jig is removed from the gear.

The present disclosure provides a method of applying a protective film on at least one portion of a wind turbine blade, a wind turbine blade, and an apparatus for forming a groove on a surface of at least one portion of a wind turbine blade. The method of applying a protective film on at least one portion of a wind turbine blade comprises providing the at least one portion of the wind turbine blade; forming a groove on a surface of the at least one portion of the wind turbine blade, thereby delimiting a first region of the surface of the at least one portion of the wind turbine blade from a second region of the surface of the at least one portion of the wind turbine blade, wherein the first region of the surface of the at least one portion of the wind turbine blade includes the groove; covering the first region of the surface of the at least one portion of the wind turbine blade with a protective film; and pressing an edge region of the protective film in the groove, thereby inserting the edge region of the protective film in the groove.

A method is for repairing a wind turbine rotor blade. The rotor blade includes a component made of a fiber reinforced laminate, wherein the component has a defect. The method includes: providing a repair kit for bridging the defect, the repair kit having a first flange piece, a second flange piece, and a connecting bolt, wherein each flange piece has a mounting portion and a connecting portion; bonding the first flange piece with its mounting portion onto a first surface region of the component and the second flange piece with its mounting portion onto a second surface region of the component such that each flange piece is arranged at a predefined distance from the defect and the defect runs between the two flange pieces, and screwing the first flange piece and the second flange piece together at their connecting portions via the connecting bolt to bridge the defect.

A system and method is disclosed for anchoring a computer numerical control (CNC) machine to a wind turbine blade. The method includes disposing one or more fasteners of the CNC machine at a surface of the wind turbine blade and implementing one or more tools of the CNC machine at a portion of the wind turbine blade. This method enables efficient and precise machining operations to be performed directly on the wind turbine blade, facilitating maintenance and repair tasks while minimizing downtime and reducing costs associated with blade removal and transportation. The anchoring of the CNC machine ensures stability and accuracy during the machining process, resulting in improved blade performance and extended operational lifespan of the wind turbine.

A system and method is disclosed for anchoring a computer numerical control (CNC) machine to a wind turbine blade. The method includes disposing one or more fasteners of the CNC machine at a surface of the wind turbine blade and implementing one or more tools of the CNC machine at a portion of the wind turbine blade. This method enables efficient and precise machining operations to be performed directly on the wind turbine blade, facilitating maintenance and repair tasks while minimizing downtime and reducing costs associated with blade removal and transportation. The anchoring of the CNC machine ensures stability and accuracy during the machining process, resulting in improved blade performance and extended operational lifespan of the wind turbine.

Device for forming a temporary support structure for maintenance crew for a blade of a wind turbine, the device comprising a sleeve configured to surround the blade, at least a longitudinal section thereof, wherein the sleeve comprises at least one inflatable part which is changeable between a deflated state and an inflated state when the sleeve surrounds the blade, wherein in the deflated state the sleeve is movable with respect to the blade for positioning the sleeve with respect to the blade, wherein in the inflated state the sleeve is configured to clamp the sleeve with respect to the blade, wherein, at least in the inflated state, the sleeve is configured to form a support structure along the blade for supporting maintenance crew for the blade thereon.

The present invention provides a method of repairing a metal mesh in a wind turbine blade part, damaged for instance by a lightning strike. The method comprises providing a wind turbine blade part; exposing a first metal mesh comprised in the wind turbine blade part; adhesively attaching a second metal mesh to the first metal mesh using an electrically conductive adhesive, such that the second metal mesh at least partially overlaps the first metal mesh; and covering the second metal mesh with cover material to finalise the repair. A corresponding wind turbine blade part is also provided.

A robot includes front and rear traction modules to circulate throughout the inside of a wind turbine blade; two intermediate modules able to be inserted between the front module and the rear module, which include an intermediate machining module to machine fissures and cracks from within the blade; and an intermediate patching module to apply, compact and cure repair patches on the fissures and cracks; and a remote control system to monitor parameters and control the repair actions.

A wind turbine rotor blade has a base plate having an access opening, and having a cover via which the access opening can be closed. A holding arrangement is configured such that a movement of the cover relative to the base plate in a predetermined direction parallel to the plane of the base plate causes the cover to be held in a form-fitting manner on the base plate, and a locking device blocks a movement of the cover in a direction opposite to the predetermined direction.