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WO2024236097A1 - Positionnement de systèmes de guide de montage sur des parties racine de pale - Google Patents

Positionnement de systèmes de guide de montage sur des parties racine de pale Download PDF

Info

Publication number
WO2024236097A1
WO2024236097A1 PCT/EP2024/063487 EP2024063487W WO2024236097A1 WO 2024236097 A1 WO2024236097 A1 WO 2024236097A1 EP 2024063487 W EP2024063487 W EP 2024063487W WO 2024236097 A1 WO2024236097 A1 WO 2024236097A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade root
positioning
mounting guide
blade
positioning member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/EP2024/063487
Other languages
English (en)
Inventor
Jonathan Johnson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LM Wind Power AS
Original Assignee
LM Wind Power AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LM Wind Power AS filed Critical LM Wind Power AS
Priority to CN202480020881.5A priority Critical patent/CN120898070A/zh
Publication of WO2024236097A1 publication Critical patent/WO2024236097A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/60—Assembly methods
    • F05B2230/604—Assembly methods using positioning or alignment devices for aligning or centering, e.g. pins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/30—Retaining components in desired mutual position
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present disclosure relates to methods for positioning mounting guide systems on blade root portions of wind turbine blades, positioning members for positioning mounting guide members on blade root portions of wind turbine blades, and positioning assemblies for positioning mounting guide assemblies on blade root portions of wind turbine blades.
  • Wind turbines are commonly used to supply electricity to the electrical grid.
  • Wind turbines of this kind generally comprise a rotor with a rotor hub and a plurality of wind turbine blades.
  • the rotor is set into rotation under the influence of the wind on the blades.
  • the rotation of the rotor shaft drives the generator rotor either directly (“directly driven”) or through the use of a gearbox.
  • the gearbox (if present), the generator, and other systems are usually mounted in a nacelle on top of a wind turbine tower.
  • wind turbine blades are assembled with the rotor hub.
  • the rotor hub and the wind turbine blades may be assembled together before being lifted and mounted at the nacelle of the wind turbine.
  • the rotor hub may be first mounted to the nacelle and wind turbine blades may be subseguently lifted and mounted on the rotor hub.
  • a further option is to lift the rotor hub with two wind turbine blades attached to the rotor hub in a commonly called ear rabbit configuration and, then, lift the remaining wind turbine blade.
  • Lifting and connecting wind turbine blades to the rotor hub may be a complex task.
  • a plurality of fasteners is commonly inserted through a plurality of holes of a pitch bearing and secured to a blade root portion.
  • a mounting flange may be provided on the blade root portion to enhance the connection of the wind turbine blade to the pitch bearing and increase the stiffness of the root portion.
  • a mounting guide assembly may be mounted at the root portion of the wind turbine blade to fit a complementary bearing guide assembly mounted at the pitch bearing.
  • the mounting guide assembly may engage the complementary bearing guide assembly to ensure the precise angular position of the blade.
  • the mounting guide assembly may comprise a pair of mounting guide members attached to the blade root portion.
  • the rotor hub may comprise a pair of complementary bearing guide members to fit the mounting guide members of the blade.
  • the present disclosure provides examples of systems and methods that at least partially resolve some of the aforementioned disadvantages.
  • a method for positioning a mounting guide assembly on a blade root portion of a wind turbine blade comprises a first mounting guide member and a second mounting guide member.
  • the mounting guide assembly is to guide the blade root portion during mounting the wind turbine blade at a rotor hub.
  • the method comprises removably joining a first positioning member to a blade root flange of the blade root portion at a first positioning location.
  • the method further comprises engaging an engaging portion of the first mounting guide member with an engaging portion of the first positioning member to place the first mounting guide member at a first mounting guide location, and joining the first mounting guide member to the blade root portion at the first mounting guide location.
  • the method comprises removably joining a second positioning member to the blade root flange at a second positioning location. Furthermore, the method comprises engaging an engaging portion of the second mounting guide member with an engaging portion of the second positioning member to place the second mounting guide member at a second mounting guide location; and joining the second mounting guide member to the blade root portion at the second mounting guide location.
  • the first positioning member and the second positioning member are employed for placing the first mounting guide member and the second mounting guide member in the right position.
  • the first and the second mounting guide members may be used for guiding the blade root portion towards the blade pitch bearing by fitting complementary bearing guide members during the wind turbine blade installation.
  • Using the positioning members allows for greater accuracy and flexibility since the shape of the positioning members is independent of the shape of the complementary bearing guide. Manipulating the positioning members may thus be easier than manipulating the mounting guide members.
  • coupling the positioning members to the blade root flange and engaging the mounting guide members with the corresponding positioning members may allow for retaining the mounting guide members at the right position while the mounting guide members are joined to the blade root portion.
  • the mounting guide members are thus retained by the corresponding positioning member during the attachment. Attaching the mounting guide members to the blade root portion is thus simplified. Position accuracy of the mounting guide members may thus be enhanced.
  • a positioning member for positioning a mounting guide member on a blade root portion of a wind turbine blade.
  • the mounting guide member is to guide the blade root portion during the mounting of the wind turbine blade at a rotor hub.
  • the positioning member comprises a base to rest on a blade root flange of the blade root portion, wherein the base comprises a lower surface to face the blade root flange and an upper surface, the upper surface being opposite to the lower surface.
  • the positioning member further comprises a pin protruding from the lower surface to be inserted into a mounting hole of the blade root flange so as to removably join the positioning member to the blade root flange.
  • the positioning member comprises an engaging portion to engage an engaging portion of the mounting guide member.
  • a positioning assembly for positioning a mounting guide mounting guide assembly on a blade root portion of a wind turbine blade.
  • the positioning assembly comprises a first positioning member and a second positioning member according to any of the examples herein.
  • Figure 1 illustrates a perspective view of a wind turbine according to one example
  • Figure 2 shows a perspective view of a wind turbine blade according to one example
  • Figure 3 shows a perspective view of a blade root portion of a wind turbine blade according to one example of the present disclosure
  • Figure 4 is a block diagram of a method for positioning a mounting guide assembly on a blade root portion according to an example of the present disclosure
  • Figures 5A - 5C schematically represent placing the first positioning member at the first positioning location according to an example of the present disclosure
  • Figure 6 schematically represents placing the first mounting guide member at a first mounting guide location according to an example of the present disclosure
  • Figures 7A - 70 schematically represent placing the second positioning member at the second positioning location according to an example of the present disclosure.
  • Figure 8 schematically represents placing the second mounting guide member at a second mounting guide location according to an example of the present disclosure.
  • Figure 1 illustrates a perspective view of one example of a wind turbine 1.
  • the wind turbine 1 includes a tower 2 extending from a support surface 3, a nacelle 4 mounted on the tower 2, and a rotor 5 coupled to the nacelle 4.
  • the rotor 5 includes a rotatable hub 6 and at least one wind turbine blade 7 coupled to and extending outwardly from the rotor hub 6.
  • the rotor 5 includes three wind turbine blades 7.
  • the rotor 5 may include more or less than three blades 7.
  • Each wind turbine blade 7 may be spaced from the rotor hub 6 to facilitate rotating the rotor 5 to enable kinetic energy to be transferred from the wind into usable mechanical energy, and subsequently, electrical energy.
  • the rotor hub 6 may be rotatably coupled to an electric generator positioned within the nacelle 4 or forming part of the nacelle to permit electrical energy to be produced.
  • FIG. 2 illustrates an example of a wind turbine blade 7.
  • the wind turbine blade 7 extends in a longitudinal direction or lengthwise direction 37 from a blade root end 71 to a blade tip end 72.
  • the blade 7 comprises a blade root region or portion 50 closest to the rotor hub, a profiled or an airfoil portion 52 furthest away from the rotor hub and a transition portion 51 between the blade root portion 50 and the airfoil portion 52.
  • the blade 7 comprises a leading edge 53 facing the direction of rotation of the blade 7 when mounted on the rotor hub, and a trailing edge 54 facing the opposite direction of the leading edge 53.
  • the airfoil portion 52 has a shape designed to generate lift, whereas the blade root portion 50 has a circular or elliptical cross-section for structural considerations and easy mounting of the blade to the rotor hub.
  • the diameter or the chord of the blade root portion 50 may be constant along the entire blade root portion 50.
  • the profile gradually changes from the circular or elliptical crosssection of the blade root portion 50 to the airfoil profile of the airfoil portion 52.
  • the wind turbine blade 7 may be connected to the rotor hub, e.g. to the pitch bearing, through a blade root attachment portion 55.
  • the wind turbine blade 7 comprises a blade shell 73.
  • the blade shell 73 comprises an outer side or surface that defines the external shape of the blade, e.g.
  • the blade shell 73 also comprises an inner side or surface that defines the internal volume of the blade and faces a load-carrying structure (not shown).
  • the blade shell 73 may be made of fiber- re info reed polymer or plastics, e.g. glass fiber and/or carbon fiber.
  • the blade shell may be formed by a plurality of blade shell parts.
  • the plurality of blade shell parts may be joined together to form the blade shell.
  • the blade shell parts may be formed and then joined according to any of the examples herein disclosed. Resin infusion technology, e.g. RTM or VARTM, or prepreg technology may be used for manufacturing the blade shell parts.
  • the blade shell comprises a pressure side blade shell part (or upwind blade shell part) and a suction side blade shell part (or downwind blade shell part).
  • the pressure side blade shell part may be joined to the suction side blade shell part along joining lines along the leading edge 53 and the trailing edge 54.
  • Each of these blade shell parts may be manufactured in a mold and then joined together to define the entire blade shell of the wind turbine blade 7.
  • a reinforcing structure is arranged between the suction side blade shell part and the pressure side blade shell part.
  • FIG. 3 schematically illustrates a blade root portion according to an example.
  • the blade root portion 50 comprises a pressure side 91 and a suction side 92. These sides 91, 92 extend from the leading edge 53 to the trailing edge 54.
  • the chord line 38 extends in an edgewise direction or chordwise direction.
  • a flapwise direction 39 is substantially perpendicular to the chord line 38.
  • the pressure side 91 and the suction side 92 are joined, e.g. bonded, together along the leading edge 53 and the trailing edge 54, through the leading edge bonding line 93 and the trailing edge bonding line 94.
  • the blade shell 73 further comprises an inner side 74 that defines the internal volume of the blade and an outer side that defines the outer shape of the blade.
  • the blade root portion 50 of this example comprises a blade root flange 100 connected to the blade shell 73 to face the pitch bearing.
  • the blade root flange 100 of this example comprises an annular shape and is manufactured from metal, e.g. from steel.
  • the blade root flange 100 of this figure comprises a mounting surface 101 to face the pitch bearing and an inner surface 102 that faces the blade shell 73.
  • the blade root flange 100 may increase the structural resistance of the blade root portion 50.
  • a stiffener ring may be arranged between the blade root flange 100 and the laminate.
  • the blade root flange 100 comprises a plurality of mounting holes 110 distributed along the circumference of the blade root flange 100. Fastener members may be inserted through the mounting holes 110 and secured on receivers arranged on the blade shell 73 to connect the pitch bearing to the wind turbine blade.
  • the receiver may be for example an insert with an inner thread or a T-bolt connector.
  • the blade root flange 100 of this figure further comprises a plurality of auxiliary holes 120.
  • the auxiliary holes 120 are different from the mounting holes 110.
  • the auxiliary holes 120 are smaller than the mounting holes 110.
  • the auxiliary holes 120 may be employed for lifting and mounting the blade root flange 100 to the blade shell 73.
  • the blade root flange 100 may be made from a single piece. In some examples, the blade root flange 100 may comprise a plurality of segments that form the entire circumference.
  • Figure 4 is a block diagram of a method for positioning a mounting guide assembly on a blade root portion according to an example of the present disclosure.
  • the mounting guide assembly comprises a first mounting guide member and a second mounting guide member.
  • the mounting guide assembly is to guide the blade root portion during mounting the wind turbine blade at a rotor hub.
  • the method 500 comprises removably joining a first positioning member to a blade root flange 100 of the blade root portion 50 at a first positioning location, as represented at block 510.
  • the first positioning location is a location of the blade root flange 100 where the first positioning member is joined to the blade root flange 100.
  • a reference may be used for identifying this first positioning location.
  • the first positioning member may be placed to rest on the mounting surface 101 at the first position location.
  • the first position location may be located at the suction side 92.
  • the first positioning member may fit one or more mounting holes 110 to engage the blade root flange 100. This fitting arrangement may allow for removably coupling the first positioning member to the blade root flange 100.
  • the first position location comprises a reference, e.g. a reference mark, to place the first positioning member.
  • the method may comprise placing the first positioning member at the first positioning location by aligning the first positioning member with the reference mark.
  • engaging an engaging portion of the first mounting guide member and an engaging portion of the first positioning member to place the first mounting guide member at a first mounting guide location While the first positioning member is joined at the blade root flange 100 at the first positioning location, the first mounting guide member may be placed at the blade root portion 50 to fit the first positioning member. The first mounting guide member may thus be retained by the first positioning member.
  • the method further includes joining the first mounting guide member to the blade root portion 50 at the first mounting guide location, as represented at block 530. While the first mounting guide member is retained at the first mounting guide location, the first mounting guide member is joined to the blade root portion 50, e.g. to the inner side 74 of the blade shell 73.
  • the first mounting guide member attached at the first mounting guide location e.g. at the suction side 92, may be employed for correctly positioning the wind turbine blade during the attachment to the wind turbine hub.
  • the first mounting guide location is the location of the blade root portion 50, e.g. the location of the inner side 74 of the blade shell 73, of the first mounting guide member when attached to the blade root portion 50.
  • the first mounting guide location is defined by the first positioning member arranged at the first positioning location.
  • removably joining a second positioning member to the blade root flange 100 at a second positioning location is represented.
  • the second positioning member may be removably joined to the blade root flange 100 at a distance from the first positioning member.
  • the method 500 further comprises engaging an engaging portion of the second mounting guide member and an engaging portion of the second positioning member to place the second mounting guide member at a second mounting guide location, as represented at block 550.
  • the second mounting guide member may thus be positioned spaced apart from the first mounting guide member and suitable position for being attached to the blade root portion.
  • joining the second mounting guide member to the blade root portion at the second mounting guide location is represented.
  • the second guide mounting member may be attached to the blade root portion while the second positioning member is retaining the second guide mounting member.
  • the second guide mounting member may be retained by the second positioning member and attached to the blade root portion 50 according to any of the examples regarding the first guide mounting member.
  • the second guide mounting member may be positioned at the pressure side of the blade root portion 50.
  • the first and the second mounting guide member may thus be spaced apart to enhance the guiding of the wind turbine blade towards the rotor hub.
  • the method may additionally comprise removing the first and the second positioning members from the blade root flange 100.
  • the positioning members may then be used for positioning the mounting guide members in other blades.
  • Figures 5A - 5C schematically represent placing the first positioning member at the first positioning location according to an example of the present disclosure.
  • Figure 5A is a frontal view of the blade root portion 50 and
  • Figures 5B and 5C are two perspective views of the first positioning member joined to the blade root flange 100.
  • the blade shell has not been illustrated in these examples, but it should be noted that the blade root flange 100 is connected to the blade shell 73.
  • the first positioning member 210 is removably joined to the blade root flange 100 at the first positioning location.
  • the first positioning member 210 is arranged at the suction side 92 of the blade root portion.
  • the first positioning member 210 rests on the mounting surface 101 of the blade root flange.
  • the first positioning member 210 is aligned with a reference mark 201.
  • the first positioning member 210 of this example comprises a groove 212. Placing the first positioning member 210 may thus comprise aligning the groove 212 with the reference mark 201.
  • the reference mark 201 may be a predetermined point formed during the manufacturing of the blade root flange 100.
  • placing the first positioning member 210 at the first positioning location comprises marking the reference mark 201 at a predetermined distance from a fixed point of the blade root flange 100.
  • the fixed point is the leading edge bonding line 93.
  • the pressure side 91 and the suction side 92 of the blade root portion are bonded together through the leading edge bonding line 93 and the trailing edge bonding line 94.
  • the leading edge bonding line 93 may thus be used as a fixed point.
  • the predetermined distance for marking the reference mark 201 may thus depart from the leading edge bonding line 93.
  • an arc-shaped component may be used for marking the reference mark 201.
  • the arc-shaped component may have the same radius as the blade root flange 100.
  • the arc-shaped component may be placed on the mounting surface 101 of the blade root flange by aligning one end of the arc-shaped component with the fixed point, e.g. the leading edge bonding line 93. Then, the opposite end of the arcshaped component may be used for marking the reference mark 201.
  • the arcshaped component may thus extend the predetermined distance between opposite ends.
  • the first positioning member 210 may thus be positioned in the first positioning location in a simple and repeatable manner.
  • An existing and fixed point, such as the leading edge bonding line 93, may thus be used for referencing the first positioning location.
  • the first positioning member 210 of this example comprises a base 230 to rest on the blade root flange.
  • the base 230 of this example comprises a lower surface 231 to face the blade root flange and an upper surface 232.
  • the upper surface 232 is opposite to the lower surface 231.
  • the upper surface 232 of this example is substantially parallel to the lower surface 231.
  • a handle may be arranged at the upper surface 232 for removing the first positioning member 210 from the blade root flange 100.
  • the groove 212 extends from the upper surface 232 to the lower surface 231 so as to see the reference mark 201 through the groove 212.
  • the base 230 comprises an L-shaped cross-section.
  • the base 230 may substantially engage an edge defined between the inner side 74 of the blade shell 73 and the blade root flange 100.
  • the base of this example comprises an inner surface 234 and an outer surface 235.
  • the inner surface 234 of the base 230 faces the longitudinal direction 37 of the wind turbine blade and the outer surface 235 of the base 230 faces the inner side 74 of the blade shell 73.
  • the inner surface 234 extends substantially perpendicular to the upper surface 232
  • the outer surface 235 extends substantially perpendicular to the lower surface 231.
  • the first positioning member 210 may comprise a pin 240 protruding from the lower surface 231 of the base 230 to be inserted into one mounting hole 110 of the blade root flange 100 so as to removably join the first positioning member 210 to the blade root flange 100.
  • the first positioning member 210 comprises a pair of pins 240 protruding from the lower surface 231. These pair of pins 240 are inserted into a pair of mounting holes 110 of the blade root flange 100. The distance between the pins 240 is thus suitable for being inserted into a corresponding pair of mounting holes 110 of the blade root flange 100.
  • the first positioning member 210 may thus be removably joined to the blade root flange 100 by inserting one or more pins 240 into one or more mounting holes of the plurality of mounting holes of the blade root flange 100.
  • the first positioning member 210 of this example further comprises an engaging portion 220 to engage an engaging portion of a mounting guide member.
  • the engaging portion 220 protrudes from the inner surface 234 of the base 230.
  • the engaging portion 220 may be substantially perpendicular to the inner surface 234.
  • the engaging portion 220 of this example comprises a first bent portion 221, a second bent portion 222, and a flat portion 223 arranged between the first bent portion 221 and the second bent portion 222. These portions fit the shape of the engaging portion of the mounting guide member. These portions comprise an engaging portion lower surface to face the engaging portion of the mounting guide member.
  • first bent portion 221 and the second bent portion 222 form an obtuse angle with the flat portion 223, e.g. between 140° - 170°, so that a distal end of the bent portions 221 and 222 faces an inside of the wind turbine blade 7 when the positioning member is joined to blade root flange 100.
  • Figure 6 schematically represents placing the first mounting guide member at a first mounting guide location according to an example of the present disclosure.
  • the first positioning member 210 is joined to the blade root flange 100 at the first positioning location.
  • the first mounting guide member 310 comprises an engaging portion 320 that engages the engaging portion 220 of the first positioning member 210.
  • the engaging portion 320 of the first mounting guide member 310 fits the engaging portion 220 of the first positioning member 210.
  • the first mounting guide member 310 may thus be placed at the first mounting guide location by engaging the first positioning member 210.
  • the shape of the engaging portion 320 of the first mounting guide member 310 substantially corresponds to the shape of the engaging portion 220 of the first positioning member 210.
  • an upper surface of a flat portion 323 of the engaging portion 320 fits the lower surface of the flat portion 223 of the engaging portion 220.
  • the upper surface of the bent portions 321, 322 of the engaging portion 320 substantially fits the lower surface of the bent portions 221,222.
  • the first mounting guide member 310 may thus be positioned at the first mounting guide location by moving the first mounting guide member 310 towards the first positioning member 210 and to match the engaging portions to each other.
  • the first mounting guide member 310 may thus be retained at the first mounting guide location by the first positioning member 210.
  • the engaging portion 320 of the first mounting guide member 310 protrudes from the wall 330 in a substantially perpendicular direction.
  • the wall 330 may substantially fit the inner side 74 of the blade shell 73.
  • an outer side of the wall 330 faces the inner side 74 of the blade shell 73 and an inner side of the wall 330 faces a lengthwise direction of the wind turbine blade.
  • the first mounting guide member 310 at the first mounting guide member may be joined to the blade root portion 50.
  • the first mounting guide member 310 may be connected to the inner side 74 of the blade shell 73.
  • Fasteners may be used for connecting the first mounting guide member 310 to the blade shell 73.
  • the wall 330 of the first mounting guide member 310 of this example a plurality of openings 331. Fasteners may be inserted through the openings 331 to connect the wall 330 to the blade shell 73.
  • first mounting guide member 310 is retained by the first positioning member 210, joining the first mounting guide member 310 to the blade shell 73 is simplified. Furthermore, the accuracy of the position of the first mounting guide member 310 may be improved.
  • Figures 7A - 7C schematically represent placing the second positioning member at the second positioning location according to an example of the present disclosure.
  • Figure 7A is a frontal view of the blade root portion 50 and
  • Figures 7B and 7C are two perspective views of the second positioning member joined to the blade root flange 100.
  • the blade shell has not been illustrated in these examples, but it should be noted that the blade root flange 100 is connected to the blade shell 73 according to any of the examples herein.
  • the second positioning member 250 is removably joined to the blade root flange 100 at the second positioning location.
  • the second positioning member 250 is arranged at the pressure side 91 of the blade root portion.
  • the second positioning member 250 rests on the mounting surface 101 of the blade root flange.
  • the second positioning member 250 may be according to any of the examples of first positioning members 210.
  • the second positioning member 250 of this example comprises a base 270 having a lower surface 271 and an upper surface 272.
  • the base 270 comprises an L-shaped cross-section and may substantially engage an edge defined between the inner side 74 of the blade shell 73 and the blade root flange 100.
  • the base 270 of this example comprises an inner surface 274 and an outer surface 275.
  • the inner surface 274 extends substantially perpendicular to the upper surface 272, and the outer surface 275 extends substantially perpendicular to the lower surface 271.
  • a pair of pins 280 protrudes from the lower surface 271.
  • each of the pins 280 is inserted into a mounting hole 110 of the plurality of mounting holes 110 of the blade root flange 100.
  • the pins 280 of the second positioning member 250 may be as the pins 240 of the first positioning member 210. The distance between the pins 280 is suitable for being inserted into two mounting holes 110 of the blade root flange 100.
  • the second positioning member also comprises an auxiliary pin 281.
  • the auxiliary pin 281 protrudes from the lower surface 271 of the base 270.
  • the auxiliary pin 281 is inserted into an auxiliary hole 120 of a plurality of auxiliary holes 120 of the blade root flange 100.
  • the auxiliary holes 120 are arranged on the inner side of the blade root flange 100.
  • the auxiliary holes 120 are different from the mounting holes 110.
  • the diameter of the auxiliary holes 120 is smaller than the diameter of the mounting holes 110.
  • the auxiliary holes are not adapted for receiving fasteners to connect the blade 7 to the rotor hub.
  • the auxiliary holes may be used for handling and moving the blade root flange or a segment of the blade root flange.
  • the blade root flange 100 of this example comprises four auxiliary holes 120 arranged along the circumference of the blade root flange 100.
  • the blade root flange 100 may comprise a different number of auxiliary holes 120, e.g. between 2 - 20.
  • two pins 280 are inserted into two mounting holes 110 and the auxiliary pin 281 is inserted into one auxiliary hole 120.
  • the second positioning member may thus only be removably joined when the two pins 280 and the auxiliary pin 281 are correctly inserted.
  • the pins 280 and the auxiliary pin may thus define a poka-yoke connection. This may ensure and simplify the correct positioning of the second positioning member 250 at the second positioning location.
  • the second positioning location may be identified before removably joining the second positioning member 250 to the blade root flange 100. For example, an operator may identify an auxiliary hole 120 on the opposite side of the blade root portion 50. For example, if the first positioning location is on the suction side 92, an operator may seek an auxiliary hole 120 on the pressure side 91.
  • the blade root flange of this example comprises an annular shape having a horizontal axis 106 and a vertical axis 105.
  • the vertical axis 105 is perpendicular to the horizontal axis 106. These axes refer to the axes of the blade root flange when the positioning members are joined to the blade root flange.
  • identifying the second positioning location comprises selecting an auxiliary hole 120 of the plurality of auxiliary holes 120 arranged at a chord line from the first position location. This cord line is perpendicular to the vertical axis 105.
  • the selected auxiliary hole 120 is arranged at the other side of the vertical axis 105.
  • the first position location and the second position location may be substantially symmetric relative to the vertical axis 105.
  • the second positioning member 250 further comprises a channel 252.
  • the channel 252 may be formed at the upper surface 272.
  • This channel 252 may be aligned with a reference mark 202.
  • the reference mark 202 may be arranged at a predetermined location.
  • the reference mark 202 is arranged at a predetermined distance from the trailing edge bonding line 94.
  • the second positioning member 250 comprises an engaging portion 260 to engage a second mounting guide member.
  • the engaging portion 260 may be according to any of the examples of engaging portions 220 of the first positioning member 210.
  • the engaging portion 260 comprises a first bent portion 261, a second bent portion 262, and a flat portion 263 arranged between the first inclined part 261 and the second bent portion 262.
  • the positioning members 210 and 250 may be manufactured from a polymer material.
  • the positioning members may thus be light and easy to manipulate.
  • the positioning members 210 and 250 may comprise nylon.
  • the positioning members 210 and 250 may be manufactured using an additive manufacturing method, e.g. a three-dimensional printing technique. Using an additive manufacturing technique may allow for a quick adaptation of the shape of the positioning members to the shape of the mounting guide members and the required position of these mounting guide members.
  • the first positioning member 210 and the second positioning member 250 may form a positioning assembly for positioning a mounting guide assembly on a blade root portion 50 of a wind turbine blade.
  • the positioning assembly may comprise two positioning members 210 according to the example of figures 5A - 5C.
  • the positioning assembly may comprise two positioning members 250 according to the example of figures 7A - 7C.
  • the positioning assembly may comprise a first positioning member 210 according to the example of figures 5A - 5C and a second positioning member 250 according to the example of figures 7A - 7C.
  • Figure 8 schematically represents placing the second mounting guide member at a second mounting guide location according to an example of the present disclosure.
  • a second mounting guide member 350 may be retained by the second positioning member 250.
  • the second mounting guide member 350 may be like the first mounting guide member 310.
  • the engaging portion 360 of the second mounting guide member 350 may thus fit the engaging portion 260 of the second positioning member 250.
  • the second mounting guide member 350 may be attached to the inner side 74 of the blade shell 73 according to any of the examples herein.
  • a wall 370 of the second mounting guide member 350 is arranged at the inner shell and fasteners may pass through openings 371 to attach the second mounting guide member 350.
  • the pins 280 of the second positioning member 250 are inserted into the mounting holes 110 of the blade root flange 100.
  • the pins 280 are thus between the inner side 74 and the outer side of the blade shell 73.
  • the auxiliary hole 120 of this example is offset from the inner side 74.
  • the auxiliary hole 120 of this example protrudes from the inner side 74 towards the longitudinal direction 37 of the wind turbine blade 7.
  • the auxiliary pin 281 is arranged outside the blade shell 73.
  • the auxiliary pin 281 may also be used as a stopper for placing the second mounting guide member 350 at an engaging configuration relative to the second positioning member 250.
  • the positioning members 210, 250 may be removed from the blade root flange 100. These positioning members may subsequently be used in other wind turbine blades.
  • the positioning members may comprise a handle for removing the positioning members from the blade root flange 100. The handle may protrude from the upper surfaces 232, 272 of the base 230, 270.
  • Clause 1 A method for positioning a mounting guide assembly on a blade root portion of a wind turbine blade, wherein the mounting guide assembly comprises a first mounting guide member and a second mounting guide member, and wherein the mounting guide assembly is to guide the blade root portion during mounting the wind turbine blade at a rotor hub, the method comprising: removably joining a first positioning member to a blade root flange of the blade root portion at a first positioning location; engaging an engaging portion of the first mounting guide member and an engaging portion of the first positioning member to place the first mounting guide member at a first mounting guide location; joining the first mounting guide member to the blade root portion at the first mounting guide location; removably joining a second positioning member to the blade root flange at a second positioning location; engaging an engaging portion of the second mounting guide member and an engaging portion of the second positioning member to place the second mounting guide member at a second mounting guide location; and joining the second mounting guide member to the blade root
  • Clause 2 The method according to clause 1, comprising placing the first positioning member on the blade root flange at the first positioning location of by aligning the first positioning member with a reference mark.
  • Clause 3 The method according to clause 2, comprising marking the reference mark at a predetermined distance from a fixed point of the blade root flange.
  • Clause 4 The method according to clause 3, wherein the fixed point comprises a joining point between a pressure side blade shell part and a suction side blade shell part of the blade root portion.
  • Clause 5 The method according to any of clauses 3 - 4, comprising: placing an arc-shaped component on a mounting surface of the blade root flange by aligning one end of an arc-shaped component with the fixed point; and using the opposite end of the arc-shaped component for marking the reference mark.
  • Clause 6 The method according to any of clauses 2 - 5, wherein the first positioning member comprises a groove, and wherein aligning the first positioning member with a reference mark comprises placing the groove over the reference mark.
  • Clause 7 The method according to any of clauses 1 - 6, comprising identifying the second position location of the blade root flange.
  • the blade root flange comprises: an annular shape having a horizontal axis and a vertical axis, the horizontal axis being perpendicular to the vertical axis; and a plurality of mounting holes to insert fasteners for joining the wind turbine blade to a rotor hub of a wind turbine; a plurality of auxiliary holes different from the plurality of mounting holes; and wherein identifying the second position location comprises: selecting an auxiliary hole of the plurality of auxiliary holes arranged at a chord line from the first position location, wherein the chord line is substantially perpendicular to the vertical axis.
  • Clause 9 The method according to any of claims 1 - 8, wherein the blade root flange comprises a plurality of mounting holes to insert fasteners for joining the wind turbine blade to a rotor hub of a wind turbine; and wherein removably joining the first positioning member and/or the second positioning member to the blade root flange, comprises inserting a pin of the corresponding positioning member into a mounting hole of the plurality of mounting holes of the blade root flange.
  • Clause 10 The method according to clause 9, wherein the blade root flange comprises a plurality of auxiliary holes, different from the mounting holes; and wherein removably joining the second positioning member to the blade root flange comprises inserting an auxiliary pin to an auxiliary hole of the plurality of auxiliary holes.
  • Clause 11 The method according to any of clauses 1 - 10, comprising removing the first positioning member and the second positioning member.
  • Clause 12 The method according to any of clauses 1 - 11 , wherein the first positioning location is located at a suction side of the blade root portion and the second positioning location at a pressure side of the blade root portion.
  • Clause 13 A positioning member for positioning a mounting guide member on a blade root portion of a wind turbine blade, wherein the mounting guide member is to guide the blade root portion during mounting the wind turbine blade at a rotor hub, the positioning member comprising: a base to rest on a blade root flange of the blade root portion, wherein the base comprises a lower surface to face the blade root flange and an upper surface, the upper surface being opposite to the lower surface; a pin protruding from the lower surface to be inserted into a mounting hole of the blade root flange so as to removably join the positioning member to the blade root flange; and an engaging portion to engage an engaging portion of the mounting guide member.
  • Clause 14 The positioning member according to clause 13, wherein the engaging portion comprises: a first bent portion; a second bent portion; and a flat portion arranged between the first and the second bent portions.
  • Clause 15 The positioning member according to clause 14, wherein the first bent portion and the second bent portion form an obtuse angle with the flat portion so that a distal end of the bent portions faces an inside of the wind turbine blade when the positioning member is joined to the blade root flange.
  • Clause 16 The positioning member according to any of clauses 13 - 15, wherein the positioning member is manufactured from a polymer material.
  • Clause 17 The positioning member according to any of clauses 13 - 16, wherein the base comprises a groove extending from the upper surface to the lower surface.
  • Clause 19 A positioning assembly for positioning a mounting guide assembly on a blade root portion of a wind turbine blade, the positioning assembly comprising a first positioning member and a second positioning member according to any of clauses 13
  • Clause 20 The positioning assembly according to clause 19, wherein the first positioning member is according to clause 17 and the second positioning member is according to clause 18.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

Selon un premier aspect, l'invention concerne un procédé de positionnement d'un ensemble guide de montage sur une partie racine de pale d'une pale d'éolienne. Le procédé comprend l'assemblage amovible d'un premier élément de positionnement à une bride de racine de pale, la mise en prise du premier élément de guide et du premier élément de positionnement, et l'assemblage du premier élément de guide de montage à la partie racine de pale. Le procédé comprend en outre en outre l'assemblage amovible d'un second élément de positionnement à une bride de racine de pale, la mise en prise du second élément de guide et du second élément de positionnement, et l'assemblage du second élément de guide de montage à la partie racine de pale. Selon un autre aspect, l'invention concerne un élément de positionnement permettant de positionner un élément de guide de montage sur une partie racine de pale d'une pale d'éolienne. Selon encore un autre aspect, l'invention concerne un ensemble de positionnement permettant de positionner un ensemble guide de montage sur une partie racine de pale.
PCT/EP2024/063487 2023-05-17 2024-05-16 Positionnement de systèmes de guide de montage sur des parties racine de pale Pending WO2024236097A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202480020881.5A CN120898070A (zh) 2023-05-17 2024-05-16 在叶片根部部分上定位安装引导系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23174023 2023-05-17
EP23174023.4 2023-05-17

Publications (1)

Publication Number Publication Date
WO2024236097A1 true WO2024236097A1 (fr) 2024-11-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/063487 Pending WO2024236097A1 (fr) 2023-05-17 2024-05-16 Positionnement de systèmes de guide de montage sur des parties racine de pale

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CN (1) CN120898070A (fr)
WO (1) WO2024236097A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2708733A1 (fr) * 2012-09-17 2014-03-19 Areva Wind GmbH Système de guidage pour guider une racine d'une pale de rotor pendant l'installation et procédé de montage d'une pale de rotor sur un moyeu de rotor d'une éolienne
EP2775137A2 (fr) * 2013-03-07 2014-09-10 General Electric Company Système et méthode pour ré-indexer un palier de pale d'éolienne
US20160040649A1 (en) * 2009-11-30 2016-02-11 Clipper Windpower, Llc Wind Turbine Blade Lowering Apparatus
EP3545192A1 (fr) * 2016-11-23 2019-10-02 MHI Vestas Offshore Wind A/S Procédé et ensemble pour aligner des parties structurales d'éolienne

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160040649A1 (en) * 2009-11-30 2016-02-11 Clipper Windpower, Llc Wind Turbine Blade Lowering Apparatus
EP2708733A1 (fr) * 2012-09-17 2014-03-19 Areva Wind GmbH Système de guidage pour guider une racine d'une pale de rotor pendant l'installation et procédé de montage d'une pale de rotor sur un moyeu de rotor d'une éolienne
EP2775137A2 (fr) * 2013-03-07 2014-09-10 General Electric Company Système et méthode pour ré-indexer un palier de pale d'éolienne
EP3545192A1 (fr) * 2016-11-23 2019-10-02 MHI Vestas Offshore Wind A/S Procédé et ensemble pour aligner des parties structurales d'éolienne

Also Published As

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