A jacking tool (70, 162, 174) for a wind turbine component (60) having an outer housing (62) and an internal rotatable member (64) disposed in the outer housing (62) and rotatable about a rotational axis (66) is disclosed. The jacking tool (70, 162, 174) includes a support pin (74, 164, 176) having a proximal end and a distal end that includes a bearing (112). The support pin (74, 164, 176) is configured to be selectively movable relative to the outer housing (62). The bearing (112) is configured to contact the internal rotatable member (64) to support the internal rotatable member (64) relative to the outer housing (62), and to allow the internal rotatable member (64) to rotate within the outer housing (62) while being supported by the jacking tool (70, 162, 174).

A method to design the kits and layup the reinforcement layers and core using projection system, comprising a mold having a contoured surface; a layup projection generator which: defines a plurality of mold sections; identifies the dimensions and location for a plurality of layup segments. A model-based calibration method for alignment of laser projection system is provided in which mold features are drawn digitally, incorporated into the plug(s) which form the wind turbine blade mold, and transferred into the mold. The mold also includes reflective targets which are keyed to the molded geometry wherein their position is calculated from the 3D model. This method ensures the precision level required from projection system to effectively assist with fabrication of wind turbine blades. In this method, digital location of reflectors is utilized to compensate for the mold deformations.

A tool (600; 600′) for aligning tubular structures of a wind turbine comprises: a support part for attaching the tool (600; 600′) to an end region of a first tubular structure (200) so as to extend axially outward therefrom; and a guide part connected to the support part by a bias part and adapted to engage an interior wall (301a) of a second tubular structure (301), wherein the bias part is arranged to urge the guide part to exert a radial force on said interior wall (301a) when the second tubular structure (301) is moved axially toward the first tubular structure 200), thereby to guide the second tubular structure (301) into axial alignment with the first tubular structure (200).

A method (100) of mounting a blade (22) to or unmounting a blade (22) from a rotor hub (20) of a wind turbine (10), the wind turbine (10) comprising a tower (12) and a nacelle (16) mounted on the tower (12), the rotor hub (20) being coupled to the nacelle (16), the method (100) comprising gripping the blade (22) using a gripper (50), the gripper (50) comprising gripping members (58) configured for gripping the blade (22) and teeth (60) protruding from the gripping members (58), wherein gripping comprises inserting the teeth (60) of the gripper (50) into receptacles (78) of the blade (22); and rotating the blade (22) about a rotation axis (54) perpendicular to a longitudinal blade axis (53) using a blade rotation device (52) of the gripper (50), wherein the teeth (60) are configured for transmitting an axial load (57) of the blade (22) between the blade (22) and the gripping members (58).

A system and method are provided for coupling a hub to a main shaft of a wind turbine. Accordingly, a plurality of fasteners are arranged within corresponding through holes of the hub of a wind turbine. At least one circumferential ridge segment is arranged radially adjacent to the head sections of the plurality of fasteners so as to resist a torque applied to each of the plurality of fasteners. A connection mechanism is utilized to secure the plurality of fasteners within the plurality of through holes so as to limit an axial translation of the plurality of fasteners prior to the coupling of the hub to the main shaft.

A self-aligning interface for assembling a powertrain housing 210 of a wind turbine onto a support base 220 is provided. The support base 220 comprises a support surface 230 and the powertrain housing 210 comprises a housing surface 240. The support surface 230 and the housing surface 240 are configured to be in contact after assembly. The self-aligning interface comprises: one or more protrusions 250 on the support surface 230, wherein the one or more protrusions 250 comprises one or more walls 260 which are inclined with respect to the support surface 230; and one or more recesses 270 on the housing surface 240. In addition or alternatively, the self-aligning interface comprises one or more protrusions on the housing surface, wherein the one or more protrusions comprises one or more walls which are inclined with respect to the housing surface, and one or more recesses on the support surface. The one or more protrusions 250 are complementary in size and shape to respective ones of the one or more recesses 270, such that, during assembly of the powertrain housing 210 onto the support base 220, the one or more protrusions 250 act as a guide for the one or more recesses 270, and the one or more protrusions 250 fit directly into the respective one or more recesses 270, to enable direct contact between the support surface 230 and the housing surface 240.

A rotor blade for a wind turbine includes first and second blade segments extending in opposite directions from a chord-wise joint. Each of the first and second blade segments includes at least one shell member defining an airfoil surface and an internal support structure. The internal support structure of the first blade segment includes a beam structure extending lengthwise, whereas the internal support structure of the second blade segment includes a receiving section that receives the beam structure of the first blade segment. Further, the rotor blade includes at least one chord-wise extending pin positioned through the beam structure and the receiving section at the chord-wise joint so as to secure the first and second blade segments together. The rotor blade includes at least one additional support member that receives a portion of the chord-wise extending pin so as to reduce a chord-wise bending deflection of the chord-wise extending pin at the chord-wise joint.

The invention relates to a fastening means (101) for a transmission part, comprising a main body (103), the main body (103) having at least one external screw thread (105) and at least one through-hole (109). The fastening means has a first pin (117), which can be slid in a first region (115) of the through-hole (109), and a second pin (121) having an external screw thread, a second region (119) of the through-hole (109) having at least one internal screw thread, which can be screwed to the external screw thread of the second pin (121), and the second pin (121) having a through-hole and the first pin (117) having an internal screw thread (125) aligned with the through-hole.

Provided herein is a spar cap having a profile for guiding and receiving a shear web for wind turbine blade. Particularly, the present disclosure provides a pultruded spar cap having a bond gap feature to maintain a uniform space for distribution of bonding paste between the spar cap and shear web. Also, the spar cap is formed with locating features which guide and receive placement of the shear web.

A fastener for a transmission part includes a main body. The main body has at least one external screw thread and at least one through-hole. The fastener further includes a first pin displaceable in a first region of the through-hole and a second pin having an external screw thread. A second region of the through-hole has at least one internal screw thread configured to be screwed to the external screw thread of the second pin. The second pin has a through-hole. The first pin has an internal screw thread aligned with the through-hole of the second pin.