WO2023242122A1 - Blade edge clamp - Google Patents

Blade edge clamp Download PDF

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Publication number
WO2023242122A1
WO2023242122A1 PCT/EP2023/065656 EP2023065656W WO2023242122A1 WO 2023242122 A1 WO2023242122 A1 WO 2023242122A1 EP 2023065656 W EP2023065656 W EP 2023065656W WO 2023242122 A1 WO2023242122 A1 WO 2023242122A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
tension
wing
wings
edge
Prior art date
Application number
PCT/EP2023/065656
Other languages
French (fr)
Inventor
Simon Sten ELEFSEN
Jeppe IBSEN
Jesper Ralph VOGELIUS
Original Assignee
Dafa A/S
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 Dafa A/S filed Critical Dafa A/S
Publication of WO2023242122A1 publication Critical patent/WO2023242122A1/en

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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/40—Arrangements or methods specially adapted for transporting wind motor components
    • 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
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • 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
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/304—Details of the trailing edge
    • 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 invention relates to a device for protecting and securing of wind turbine blades during storage and/or transportation.
  • Wind turbine blades are large and heavy and therefore a challenge to store and transport. On top of the difficulties in handling due to size it is also a challenge to avoid damages to the blades as damages may reduce the structural integrity of the blades and even relatively small damages may compromise a blade’s aerodynamic performance.
  • a blade clamp comprising at least two wings and a body connecting said wings, said body and wings arranged together to constitute a U type shape, wherein each wing is arranged with tensioning means each having a tension base and wherein at least one wing comprises a tension indicator.
  • the tension bases are arranged to press against a blade arranged between the wings of the blade clamp.
  • the tension means When the tension means are activated the tension bases are pressed against the blade with an increasing pressure regulated by the tension means.
  • the tension indicator may be arranged in relation to one or both of the wings and is preferably arranged in order for easy reading of the indicator as the tension means are activated to tighten the pressure of the tension bases against the blade.
  • each wing has an edge, an outer surface and an opposing inner surface and a through-going hole extending from the outer surface to the inner surface, and wherein the tensioning means is at least a first and second tensioning means each arranged to pass through one of the through-going holes.
  • the clamp comprises a first tensioning means and a second tensioning means, one arranged through each of the holes through the wings.
  • the first and second tensioning means each may be arranged to have a first end with a grip and an opposing second end hingedly connected to the tension base, wherein the tension bases are arranged inside the U and wherein the tension bases are moved towards or away from each other by activation of at least one of the tensioning means by the grips.
  • the tension bases are hinged to the second end of the tensioning means the positioning and grip of the tensioning bases against a blade may be improved and adjusted/tilted/rotated in order to accommodate angles, curves etc. of the blade.
  • At least one of the tension indicators is a visual displacement tension indicator, i.e. a tension indicator where two parts are displaced with respect to each other in a manner which may be identified visually.
  • said indicator comprises at least one pre-set marker indicating maximum and or ideal tension of the tensioning means.
  • At least one of the wings may comprise a throughgoing recess arranged along the edge of said wing thereby defining an edge section of the wing and a partially separated centre part of the wing, wherein the through-going hole is arranged in the centre part of the wing and wherein the edge section and the centre section are displaceable relatively to each other by the activation of at least one of the tensioning means by activation (such as rotation) of at least one of the grips, thereby providing the tension indicator which may be in the form of a visual displacement indicator.
  • the edge section and the centre section are displaced relatively to each other a side edge of the centre section becomes visible as it is pushed/pulled out of the plane of the edge section.
  • the side edge may be provided with markings indicating the current tension/pressure provided by the tension base.
  • the tensioning means may be threaded at least on a section for interacting with a threaded part of the through-going hole and/or a threaded nut arranged between the inner surface of the wing and the tension base.
  • blade edge clamp is symmetrical mounting may be easier as it may be used from both sides.
  • the tension bases comprise a protective layer such as a rubber and/or foam layer the risk of damage to the blade may be further reduced. Also, the protective layer may be used to ensure improved grip between tension base and blade.
  • the blade clamp comprises at least one fastening arrangement it is possible to provide easy and reliable anchoring of ropes, ribbons, chains etc. used to secure the turbine blade to e.g. a truck or ship via the blade clamp.
  • the blade clamp may also be used for direct or indirect securing of protecting means to the turbine blade. Such protection means may for example be fastened to the turbine blade via the blade clamp to protect at least part of the leading edge of the blade and/or the blade tip.
  • the blade clamp can also be used to fasten visibility aids, such as lights, reflexes etc.
  • the sides of the wings can be extended in order to take serrated blade edges into account.
  • the present invention also relates to a method for fastening a blade edge clamp comprising a body, at least two wings, tensioning means, tensioning bases and a tension indicator to an edge of a wind turbine blade, said method comprising the steps of: arranging the blade edge clamp on the edge of a turbine blade having a wing on each side of the blade, arranging the tension bases to rest against the sides of the blades activating at least one of the grips thereby increasing the pressure of the tension bases against the blade sides and also by the activation of the grip displacing a first part of at least one of the wings relatively to a second part of said wing until a predetermined tension indication is reached by said displacement.
  • the edge clamp used in the method is an edge clamp as described herein.
  • the distance between the wings may be 5cm - 50cm, such as 7 - 20cm such as 7, 10, 15, 20, 25, 30, 35, 40, 45, 50 cm. In some preferred embodiments the distance between the wings is around 10 cm
  • the distance from the body to the tip of the wings may be 5cm - 50cm, such as 7 - 20cm such as 7, 10, 15, 20, 25, 30, 35, 40, 45, 50 cm.
  • the distance from the body to the tip of the wings is around 13 cm.
  • the edge clamp may be made of metal, such as stainless steel, galvanized steel or aluminium, or other materials such as polymers or composites.
  • Fig. 1 shows a blade clamp comprising two different tensioning means
  • Fig. 2 shows a blade clamp comprising two different tensioning means and means for fasting ropes, bands etc.
  • Fig. 3 shows a blade clamp comprising two identical tensioning means
  • Fig. 4 shows a blade clamp used to fasten protective- and visual means at a blade tip
  • Fig. 5 shows a schematic view of a wing where the edge section and center part is displaced relatively to each other.
  • Fig. 6 shows various exemplary shapes defined as U type shapes
  • Fig. 1 shows a blade clamp 1 comprising at least two wings 2 and a body 3 connecting said wings, said body and wings arranged together to constitute a U shape.
  • Each wing is arranged with tensioning means 4 each having a tension base 5 for when in use pressing against a blade (not shown) arranged between the wings.
  • Each wing has an edge 6, an outer surface 7 and an opposing inner surface 8 and a through-going hole extending from the outer surface to the inner surface.
  • the tensioning means in this embodiment are a first 4a and second 4b tensioning means each arranged to pass through one of the through-going holes whereby part of the tensioning means including a grip 9 is on the outer side of the wing and part of the tensioning means including the tension base is on the inner side of the wings.
  • Each of the first and second tensioning mean 4a, 4b is hingedly connected to the respective tension base via a hinge 10.
  • the wings 2 comprise a through-going recess 11 arranged along the edge 6 thereby defining an edge section 12 of the wing and a partially separated center part 13 of the wing, wherein the through-going hole is arranged in the center part 13 of the wing 2 and wherein the edge section 12 and the center section 13 are displaceable relatively to each other by the activation of at least one of the grips, thereby providing the visual displacement tension indicator.
  • the edge section 12 and the center section 13 are displaceable relatively to each other by the activation of at least one of the grips, thereby providing the visual displacement tension indicator.
  • the tensioning means 4a, 4b comprises a threaded section 14 for interacting with a threaded part (not shown) of the through -going hole and/or a threaded nut arranged between the inner surface 8 of the wing and the tension base 5.
  • the blade clamp further comprises a protective layer 15 arranged on the tension base 5.
  • Fig. 2 shows a blade clamp similar to the one presented in fig. 1, but further comprising various fastening arrangements 16, 17, 18, 19 for fastening various means such as straps, chains, ropes, hooks, lights, visibility add-ons, etc. (not shown) to the blade clamp.
  • Fig. 3 shows a blade clamp similar to the one presented in fig. 1, but in this embodiment the first and second tensioning means are identical.
  • Fig. 4 shows a blade clamp according to the present invention used to secure protective means to a blade tip.
  • a strap is used together with the blade clamp.
  • Fig. 5 shows a schematic view of a wing 2 comprising an edge section 12 of the wing and a partially separated center part 13.
  • the center section 13 is here displaced relatively to the edge section 12 by the action of the tensioning means (not shown) and the side edge 20 of the center section is visible and can function as a tension indicator.
  • Fig. 6 shows schematic exemplary representations of various alternative shapes all defined as U type shapes according to the present invention. It is seen that the body and/or transition body to the wing does not have to be rounded or smooth.

Landscapes

  • 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)
  • Clamps And Clips (AREA)

Abstract

A blade clamp (1) for protecting and securing of a wind turbine blade during storage and/or transportation, said blade clamp (1) comprising at least two wings (2) and a body (3) connecting said wings, said body and wings arranged together to constitute a U shape, wherein each wing is arranged with tensioning means (4) each having a tension base (5) for when in use pressing against the blade arranged between the wings, and wherein at least one wing comprises a tension indicator adapted for ensuring that the pressure of the tension bases against the blade does not exceed a predetermined pressure, so as to avoid damaging the blade.

Description

Blade edge clamp
Field of the Invention
The present invention relates to a device for protecting and securing of wind turbine blades during storage and/or transportation.
Background of the Invention
Wind turbine blades are large and heavy and therefore a challenge to store and transport. On top of the difficulties in handling due to size it is also a challenge to avoid damages to the blades as damages may reduce the structural integrity of the blades and even relatively small damages may compromise a blade’s aerodynamic performance.
Therefore the development of new clamps and mounts for fastening and stabilizing wind turbine blades are of interest as there is a constant need for reliable releasable nondamaging fastening devices usable for even very large structures.
Object of the Invention
Thus, it is an object of the present invention to provide a clamp which reliably ensures a solid grip on e.g. a wind turbine blade leading- and/or trailing edge without risks of damages to the blade caused by the clamp.
Description of the Invention
These and other advantages are achieved by a blade clamp comprising at least two wings and a body connecting said wings, said body and wings arranged together to constitute a U type shape, wherein each wing is arranged with tensioning means each having a tension base and wherein at least one wing comprises a tension indicator. In use, the tension bases are arranged to press against a blade arranged between the wings of the blade clamp. When the tension means are activated the tension bases are pressed against the blade with an increasing pressure regulated by the tension means. In order to avoid damage to the blade it is important that the pressure of the tension bases against the blade does not exceed a predetermined pressure which is ensured by the tension indicator. The tension indicator may be arranged in relation to one or both of the wings and is preferably arranged in order for easy reading of the indicator as the tension means are activated to tighten the pressure of the tension bases against the blade.
In some embodiments each wing has an edge, an outer surface and an opposing inner surface and a through-going hole extending from the outer surface to the inner surface, and wherein the tensioning means is at least a first and second tensioning means each arranged to pass through one of the through-going holes. In other words, in some embodiments the clamp comprises a first tensioning means and a second tensioning means, one arranged through each of the holes through the wings.
The first and second tensioning means each may be arranged to have a first end with a grip and an opposing second end hingedly connected to the tension base, wherein the tension bases are arranged inside the U and wherein the tension bases are moved towards or away from each other by activation of at least one of the tensioning means by the grips. When the tension bases are hinged to the second end of the tensioning means the positioning and grip of the tensioning bases against a blade may be improved and adjusted/tilted/rotated in order to accommodate angles, curves etc. of the blade.
In various embodiments at least one of the tension indicators is a visual displacement tension indicator, i.e. a tension indicator where two parts are displaced with respect to each other in a manner which may be identified visually. Preferably, said indicator comprises at least one pre-set marker indicating maximum and or ideal tension of the tensioning means.
For example at least one of the wings may comprise a throughgoing recess arranged along the edge of said wing thereby defining an edge section of the wing and a partially separated centre part of the wing, wherein the through-going hole is arranged in the centre part of the wing and wherein the edge section and the centre section are displaceable relatively to each other by the activation of at least one of the tensioning means by activation (such as rotation) of at least one of the grips, thereby providing the tension indicator which may be in the form of a visual displacement indicator. When the edge section and the centre section are displaced relatively to each other a side edge of the centre section becomes visible as it is pushed/pulled out of the plane of the edge section. The side edge may be provided with markings indicating the current tension/pressure provided by the tension base.
The tensioning means may be threaded at least on a section for interacting with a threaded part of the through-going hole and/or a threaded nut arranged between the inner surface of the wing and the tension base.
If the blade edge clamp is symmetrical mounting may be easier as it may be used from both sides.
If the tension bases comprise a protective layer such as a rubber and/or foam layer the risk of damage to the blade may be further reduced. Also, the protective layer may be used to ensure improved grip between tension base and blade.
If the blade clamp comprises at least one fastening arrangement it is possible to provide easy and reliable anchoring of ropes, ribbons, chains etc. used to secure the turbine blade to e.g. a truck or ship via the blade clamp. The blade clamp may also be used for direct or indirect securing of protecting means to the turbine blade. Such protection means may for example be fastened to the turbine blade via the blade clamp to protect at least part of the leading edge of the blade and/or the blade tip. The blade clamp can also be used to fasten visibility aids, such as lights, reflexes etc.
The sides of the wings can be extended in order to take serrated blade edges into account.
The present invention also relates to a method for fastening a blade edge clamp comprising a body, at least two wings, tensioning means, tensioning bases and a tension indicator to an edge of a wind turbine blade, said method comprising the steps of: arranging the blade edge clamp on the edge of a turbine blade having a wing on each side of the blade, arranging the tension bases to rest against the sides of the blades activating at least one of the grips thereby increasing the pressure of the tension bases against the blade sides and also by the activation of the grip displacing a first part of at least one of the wings relatively to a second part of said wing until a predetermined tension indication is reached by said displacement.
Preferably the edge clamp used in the method is an edge clamp as described herein.
The distance between the wings may be 5cm - 50cm, such as 7 - 20cm such as 7, 10, 15, 20, 25, 30, 35, 40, 45, 50 cm. In some preferred embodiments the distance between the wings is around 10 cm
The distance from the body to the tip of the wings may be 5cm - 50cm, such as 7 - 20cm such as 7, 10, 15, 20, 25, 30, 35, 40, 45, 50 cm.
In some preferred embodiments the distance from the body to the tip of the wings is around 13 cm.
The edge clamp may be made of metal, such as stainless steel, galvanized steel or aluminium, or other materials such as polymers or composites.
Description of the Drawing
Fig. 1 shows a blade clamp comprising two different tensioning means
Fig. 2 shows a blade clamp comprising two different tensioning means and means for fasting ropes, bands etc.
Fig. 3 shows a blade clamp comprising two identical tensioning means
Fig. 4 shows a blade clamp used to fasten protective- and visual means at a blade tip
Fig. 5 shows a schematic view of a wing where the edge section and center part is displaced relatively to each other.
Fig. 6 shows various exemplary shapes defined as U type shapes
Detailed Description of the Invention
Fig. 1 shows a blade clamp 1 comprising at least two wings 2 and a body 3 connecting said wings, said body and wings arranged together to constitute a U shape. Each wing is arranged with tensioning means 4 each having a tension base 5 for when in use pressing against a blade (not shown) arranged between the wings.
Each wing has an edge 6, an outer surface 7 and an opposing inner surface 8 and a through-going hole extending from the outer surface to the inner surface. The tensioning means in this embodiment are a first 4a and second 4b tensioning means each arranged to pass through one of the through-going holes whereby part of the tensioning means including a grip 9 is on the outer side of the wing and part of the tensioning means including the tension base is on the inner side of the wings.
Each of the first and second tensioning mean 4a, 4b is hingedly connected to the respective tension base via a hinge 10.
The wings 2 comprise a through-going recess 11 arranged along the edge 6 thereby defining an edge section 12 of the wing and a partially separated center part 13 of the wing, wherein the through-going hole is arranged in the center part 13 of the wing 2 and wherein the edge section 12 and the center section 13 are displaceable relatively to each other by the activation of at least one of the grips, thereby providing the visual displacement tension indicator. I.e. as the center section is displaced relatively to the edge section 12 by the action of the tensioning means via the grip, the edge of the center section will become visible. In the present figure the center section is not displaced and the side edge of the center section is therefore not visible.
The tensioning means 4a, 4b comprises a threaded section 14 for interacting with a threaded part (not shown) of the through -going hole and/or a threaded nut arranged between the inner surface 8 of the wing and the tension base 5.
The blade clamp further comprises a protective layer 15 arranged on the tension base 5.
Fig. 2 shows a blade clamp similar to the one presented in fig. 1, but further comprising various fastening arrangements 16, 17, 18, 19 for fastening various means such as straps, chains, ropes, hooks, lights, visibility add-ons, etc. (not shown) to the blade clamp. Fig. 3 shows a blade clamp similar to the one presented in fig. 1, but in this embodiment the first and second tensioning means are identical.
Fig. 4 shows a blade clamp according to the present invention used to secure protective means to a blade tip. In this embodiment a strap is used together with the blade clamp.
Fig. 5 shows a schematic view of a wing 2 comprising an edge section 12 of the wing and a partially separated center part 13. The center section 13 is here displaced relatively to the edge section 12 by the action of the tensioning means (not shown) and the side edge 20 of the center section is visible and can function as a tension indicator.
Fig. 6 shows schematic exemplary representations of various alternative shapes all defined as U type shapes according to the present invention. It is seen that the body and/or transition body to the wing does not have to be rounded or smooth.

Claims

1. A blade clamp (1) for protecting and securing of a wind turbine blade during storage and/or transportation, said blade clamp (1) comprising at least two wings (2) and a body (3) connecting said wings, said body and wings arranged together to constitute a U shape, wherein each wing is arranged with tensioning means (4) each having a tension base (5) for when in use pressing against the blade arranged between the wings, and wherein at least one wing comprises a tension indicator adapted for ensuring that the pressure of the tension bases against the blade does not exceed a predetermined pressure, so as to avoid damaging the blade.
2. The blade clamp according to claim 1, wherein each wing has an edge (6), an outer surface (7) and an opposing inner surface (8) and a through-going hole extending from the outer surface to the inner surface, and wherein the tensioning means is at least a first and second tensioning means each arranged to pass through one of the through-going holes.
3. The blade clamp according to any of the preceding claims, wherein the first and second tensioning means each are arranged to have a first end with a grip (9) and an opposing second end hingedly connected to the tension base via a hinge (10), wherein the tension bases (5) are arranged inside the U and wherein the tension bases are moved towards or away from each other by activation of at least one of the tensioning means by the grips (9).
4. The blade edge clamp according to any of the preceding claims, wherein the tension indicator is a visual displacement tension indicator.
5. The blade edge clamp according to any of the preceding claims, wherein at least one of the wings (2) comprises a throughgoing recess (11) arranged along the edge thereby defining an edge section (12) of the wing and a partially separated center part (13) of the wing, wherein the through going hole is arranged in the center part of the wing and wherein the edge section and the center section is displaceable relatively to each other by the activation of at least one of the grips (9), thereby providing the tension indicator, such as a visual displacement tension indicator . The blade edge clamp according to any of the preceding claims, wherein the tensioning means comprises a threaded section (14) for interacting with a threaded part of the through-going hole and/or a threaded nut arranged between the inner surface of the wing and the tension base. The blade edge clamp according to any of the preceding claims, wherein the blade edge clamp is symmetrical. The blade edge clamp according to any of the preceding claims, wherein the tension bases comprise a protective layer (15). The blade edge clamp according to any of the preceding claims, comprising at least one fastening arrangement (16). Use of a blade edge clamp according to any of the preceding claims for fastening turbine blades during storage and/or transportation. Method for fastening a blade edge clamp comprising a body, at least two wings, tensioning means, tensioning bases and a tension indicator to an edge of a wind turbine blade, said method comprising the steps of:
Arranging the blade edge clamp on the edge of a turbine blade having a wing on each side of the blade,
Arranging the tension bases to rest against the sides of the blades
Activating at least one of the grips thereby increasing the pressure of the tension bases against the blade sides and also by the activation of the grip displacing a first part of at least one of the wings relatively to a second part of said wing until a predetermined tension indication is reached by said displacement. The method according to claim 11 wherein the blade edge clamp is a blade edge clamp according to claim 1.
PCT/EP2023/065656 2022-06-13 2023-06-12 Blade edge clamp WO2023242122A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA202270315 2022-06-13
DKPA202270315 2022-06-13

Publications (1)

Publication Number Publication Date
WO2023242122A1 true WO2023242122A1 (en) 2023-12-21

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ID=86895997

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/065656 WO2023242122A1 (en) 2022-06-13 2023-06-12 Blade edge clamp

Country Status (1)

Country Link
WO (1) WO2023242122A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150037112A1 (en) * 2013-07-30 2015-02-05 General Electric Company Protective cap for a rotor blade
WO2019129329A1 (en) * 2017-12-28 2019-07-04 Vestas Wind Systems A/S Support frame and method for determining movements of a wind turbine blade during transport to an installation site
CN210029725U (en) * 2019-04-15 2020-02-07 上海艾郎风电科技发展（集团）有限公司 Rear edge hoisting protection tool for wind power blade
CN213738219U (en) * 2021-03-30 2021-07-20 新疆海为新能电力工程有限公司 Rear edge hoisting protection tool for wind power blade

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150037112A1 (en) * 2013-07-30 2015-02-05 General Electric Company Protective cap for a rotor blade
WO2019129329A1 (en) * 2017-12-28 2019-07-04 Vestas Wind Systems A/S Support frame and method for determining movements of a wind turbine blade during transport to an installation site
CN210029725U (en) * 2019-04-15 2020-02-07 上海艾郎风电科技发展（集团）有限公司 Rear edge hoisting protection tool for wind power blade
CN213738219U (en) * 2021-03-30 2021-07-20 新疆海为新能电力工程有限公司 Rear edge hoisting protection tool for wind power blade

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