• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A wind turbine blade transport frame (20) configured to receive and support a wind turbine blade at a portion of a tip region thereof, said transport frame (20) including a leading edge support (31) comprising a compliant support belt portion (70a) extending between a first and a second fulcrum (71, 72) and configured to support a said blade at a leading edge thereof; wherein the blade transport frame (20) comprises a leading edge frame (30) and a trailing edge frame (40) each of which is L-shaped with an upstand part (32, 42) projecting from a laterally extending base part (36, 46), and wherein the respective base parts (36, 46) of said leading edge and trailing edge frames (30, 40) are connected together at a base joint (60) thereby to define said transport frame (20) and a lateral internal dimension (D) thereof, wherein said transport frame (30) is configured for receiving a said blade tip portion with its chordwise dimension oriented laterally (C), said first belt fulcrum (71) of said leading edge support (31) being mounted at a said base part (36, 46), and said second belt fulcrum (72) of said leading edge support (31) being mounted at a said upstand part (32, 42); said transport frame (20) further comprising a trailing edge support (41) including a support pad (44) mounted at a said base part (36, 46), and wherein said internal lateral dimension (D) of said transport frame (20) is selectably variable by adjusting said base joint (60). A road transport vehicle (6) is configured to transport a wind turbine blade (1) and including a tractor (4) and a trailer (5, 9), said trailer (5, 9) having fixed thereon a transport frame (20) according to any preceding claim.
    公开号:DK202000105U1
    申请号:DK202000105U
    申请日:2020-10-16
    公开日:2020-10-27
    发明作者:Jensen Kurt
    申请人:Vestas Wind Sys As；
    IPC主号:
    专利说明:

    DK 2020 00105 U1TRANSPORT FRAME FOR A WIND TURBINE BLADE
    FIELD OF THE INVENTION The present invention relates to transportation of horizontal axis wind turbine blades, and more specifically fo a blade frame configured to hold and support a wind turbine blade tip portion in a horizontal orientation. The frame serves during transport and/or storage of a wind turbine blade.
    BACKGROUND OF THE INVENTION It is common to transport or store blades with their chordwise extent oriented either in a substantially vertical or in a substantially horizontal orientation. A blade tip frame for storage or transport of blades in a vertical chord orientation is described in — EP3486205A1, in which the blade leading edge is supported in crossed over sets of straps, suspended from opposite sides of a rigid frame. Wind turbine blades typically have considerably greater chordwise dimensions than thickness-wise dimensions, whereas so-called flatwise flexibility in their thickness-wise direction is greater than their edgewise flexibility in their chordwise plane. For various reasons, including dimensional and stiffness considerations in different directions, there are different advantages in relation to choosing different blade orientation during storage or transport. The present transport or storage frame is conceived with truck transportation in mind and in which a blade orientation which puts the blade's — chordwise extent in a predominantly horizontal direction is preferred. This allows the blade to use its relativelv higher flatwise flexibility to absorb shocks arising e.g. from bumps or unevenness in the road or to accommodate for undulations in a road surface. Moreover, the deployment of wind power generators to a range of different sites having different wind characteristics increasingly requires a wide range of different blade sizes to be made available for fitting to wind power generators. It is advantageous to design a transport or storage frame such that it can accommodate different blades having different designs or sizes.
    Wind turbine blades offer unique challenges in the context of storage and transportation because of their large size and weight combined with their asymmetric 1
    DK 2020 00105 U1 shape and their susceptibility to damage if handled incorrectly. Moreover, vibrations or shocks during transport can unseat or damage a blade. Moreover, the internal geometric structure of a wind turbine blade can lead to there being local areas of the blade surface which are suitable for having restraining force applied, e.g. during — transport, storage or handling. Conversely, areas of a Dlade's surface which have less local internal support may be poorly suited to having force applied e.g. during transport, storage or handling, If excessive pressure is applied to a relatively unsupported blade surface portion, then this may be associated with an increased probability of local damage to the blade. Moreover, experience shows that a blade's trailing edge can have different susceptibilities than blade's leading edge. In some cases, appliances such as noise- or drag-reducing fittings, e.g. serrations, can be fitted io a blade’s trailing edge. These factors all create challenges for blade frame design, notably for frames which may be used with different blade designs.
    SUMMARY OF THE INVENTION There is proposed a wind turbine blade transport frame for carrying a tip portion of a blade with its chordwise dimension oriented laterally. The design is optimised for accommodating blades having different sizes or designs. A wind turbine blade transport frame according to the invention is defined in appended claim 1. Further preferred features therefor are defined in subclaims 2-14 and in the detailed description below, A transport arrangement including a transport frame according fo the invention is defined in appended claim 15. Further preferred features thereof are defined in — subclaim 16 and in the detailed description below. The proposed blade transport frame ensures adequate support for a blade tip portion which is lying flat in the frame. The blade is supported both at #s tralling edge and at its leading edge. The leading edge blade support arrangement is of a conformable belt — type and allows good load distribution as well as blade shape adaptability. The trailing edge support is of a pad type, thereby avoiding interaction between a belt and the blade's very trailing edge. The frame can accommodate blades of different shapes to be supported thanks to the shape adaptability of the compliant belt at the blade leading edge. Larger or smaller blade models can be accommodated by adjusting the frame — dimensions. 2
    DK 2020 00105 U1
    BRIEF DESCRIPTION OF THE DRAWINGS The invention and some additional or optional features will now be described with reference to the accompanying drawings, in which: Figure 1 shows a side view illustrating aspects of the proposed wind turbine blade frame; Figures 2-6 show a similar view Hlustrating additional features; Figwe 7 shows a perspective view of a leading edge frame which may be part of the proposed transport frame; Figure 8 shows a perspective view of a trailing edge frame which may be part of the proposed transport frame; Figure 9 shows a perspective view of including aspects of the proposed transport 13 frame; Figure 10 shows a transport arrangement including a proposed transport frame.
    DETAILED DESCRIPTION OF EMBODIMENTS Figure 10 shows a transport arrangement 6 for a wind turbine blade 1. The illustrated transport arrangement includes a truck with a tractor 4 pulling a trailer 5, 9. Atratier 5, 9 may be of various types including for example a bed-type trailer 5 or a dolly type trailer 9. A bed-type trailer 5 is indicated in dashed lines in Fig. 1, in the form of an articulated bed trailer 5 pivotably connected to the tractor 4. A dolly-type trailer, or dolly 9, is indicated in Fig. 1 and when used, is towed by the tractor 4 via the blade 1. in other words, the dolly 9 is pulled along by the blade 1, which is secured to the tractor
    4. The term “trailer” as used herein refers to both types of trailer 5, 9. For different transport operations, it may be preferred to use one or the other of a dolly 9 or a bed type trailer 5 in combination with the proposed blade transport frame 20. The blade root — 8is shown supported at or near the tractor 4, while the blade tip region 2 is supported at a blade tip portion 3 in a blade transport frame 20 on the trailer 5, 9, For present purposes, a blade tip region may refer to any part of a blade outboard of the blade's root 8, in the direction of ts tip end 7. in embodiments, the blade transport frame 20 may be placed atop a rocker table 10 which is positioned on the trailer 5, 9. A rocker — table 10 may allow the blade transport frame 20, and thereby the blade tip region 2 supported in it, to twist or tilt in a rocking direction 11 about the blade's spanwise axis 3
    DK 2020 00105 U1 and/or in a tilting direction 12 about a lateral axis C, transverse to the spanwise direction L which is also the direction of travel.
    A rocker table 10 may reduce the amount of twisting or bending to which the blade tip region 2 is subject when underway.
    The blade 1 is arranged with its spanwise length defining a longitudinal direction L between the blade root end 8 and its tip 7 end.
    The blade 1 is lying flat, this is to say, with is thickness-wise dimension exiending upward, and iis chordwise dimension extending in a lateral direction C.
    In this context, the lateral direction C may be referred to as a lying flat or a transverse direction or a substantially horizontal direction.
    For the avoidance of doubt, such a lateral direction may be horizontal or approximaiely horizontal, e.g. having an elevation or declension of up to fifteen degrees or up to ten degrees.
    As can be appreciated, the blade 1 exhibits flexibility when oriented in this way, which may be beneficial during transportation where vibrations or occasional shocks may be expected.
    Nevertheless, accommodating a blade which is lying flat can risk putting put strains on it, especially at the trailing edge of its tip region 2 which is — thin and may have aerodynamically active elements such as serrations filed to it.
    The proposed blade transport frame 20 is optimised for this task and exhibits features to that end.
    With reference to Fig. 1, the blade fransport frame 20 is configured to receive and support a wind turbine blade 1 at a portion 3 of a tip region 2 thereof.
    The transport frame 20 includes a leading edge support 31 comprising a compliant support belt portion 70a which exiends between a first and a second fulcrum 71, 72. The support bet portion 70a between the fulcra 71, 72 is configured to engage and support the blade 1 at or around leading edge thereof, and/or at a leading edge side of an aerofoil surface.
    The blade transport frame 20 comprises a leading-edge frame 30 and a trailing edge frame 40 each of which is L-shaped and has an upstand part 32, 42 projecting from a laterally extending base part 36, 46. The respective base parts 36, 44 the leading edge and trailing edge frames 30, 40 are connected together at a base joint 60. Together the leading edge frame 30 and the trailing edge frame 40 define the — transport frame 20 and a lateral internal dimension D thereof.
    The transport frame 30 is configured for receiving a blade tip portion 3 with its chordwise dimension oriented laterally C.
    A first belt fulcrum 71 of the leading edge support 31 is mounted at a base part 36, 46 of the transport frame 20, while a second belt fulcrum 72 of the leading edge support 31 is mounted at a said upstand part 32, 42 of the transport frame 20. — The transport frame 20 further comprises a trailing edge support 41 which includes a support pad 44 mounted at a base part 36, 46 of the transport frame 20. The internal 4
    DK 2020 00105 U1 lateral dimension D of the transport frame 20 is selectably variable by adjusting the base joint 80. As shown in Figure 2 and also in Figs. 3-8, a tip portion 3 of a blade 1 may be placed in the transport frame 20 with its leading edge facing towards the upstand part 32 of the leading edge frame 30. The trailing edge of the blade 1 may thereby point towards the upstand part 42 of the trailing edge frame 40. The frame 20 is configures such that the leading edge part of an underside of the bade tip portion 3 will thus rest on the support belt portion 70a, while the trailing edge part of the underside of the blade tip — portion 3 will rest on the support pad 44. The configuration of the proposed transport frame 20 has many advantages.
    The provision of a leading edge frame 30 and a trailing edge frame 40, connectable at a base joint 60 and each defining a respective leading edge support 31 and trailing edge support 42 allows for great flexibility.
    For example, it allows to adapt the respective leading edge and trafling edge supports 31, 41 to the different properties of the blade tip portion 3 at those locations.
    It also allows to vary the internal dimension D of the transport frame 20 to accommodate different blade sizes or different blade chordwise dimensions.
    The conformability of the leading edge support 31 allows for greater load distribution between the blade 1 and the support 31 in particular between the blade 1 and the belt portion 70a of the support.
    If also allows the same support 31 to be used with different shapes of blade 1, because the belt portion 70a will self-adjust to the shape of the blade’s profile which is placed on it.
    Moreover, the combination of the belt portion 70a as part of the leading edge support 31 and a pad 44 for the trailing edge support 41 leads to a beneficial interaction between the compliant leading edge support 31 and the less compliant trailing edge support 41. This in particular avoids potential disadvantages which could otherwise arise from resting the whole of a blade's surface on a belt, from the leading fo the tralling edge.
    Such an arrangement would fend to concentrate pressure at the very trailing edge, thereby risking damage to it or to any aerodynamic add-ons at the trailing edge. instead, the trailing edge pad 44 supports the trailing edge side of a blade 1 by effectively holding the trailing edge region away from the belt 70. in particular, the support pad 44 holds the trailing edge region of the blade 1 separate from the belt 70. Preferably, the first fulcrum 71 is positioned in the frame 20 at a height below the support pad 44. in the proposed transport frame 20, — the belt portion 70a forming part of the leading edge support 31 may be unsupported between the first fulcrum 71 and the second fulcrum 72. Preferably the support belt 5
    DK 2020 00105 U1 portion 70a may be configured to engage the blade 1 at least at a part thereof immediately adjacent its leading edge. Preferably, the support belt portion 70a may be configured to contact the blade 1 along one aerofoil surface thereof, being in particular the lowermost aerofoil surface, when the blade tiv portion 3 is seen ing flat in the — transport frame 20.
    The respective trailing edge frame 40 and leading edge frame 30, both L-shaped may be arranged together form a generally U-shaped transport frame 20, which is upwardly open. Such a U-shape may be considered to have a base section, made up from the joined-together base parts 46, 36 and two upstand parts 32, 42, rising up on either end of the base section. Preferably, the first and second fulcra 71, 72 are both arranged on the leading edge frame 30. Hereby, the leading edge support belt 70 may also be disposed on the leading edge frame 31. The support belt 70 may extend from a first end 77 at a first fulcrum 71 to a second end 78. The second belt end 78 may correspond to the second fulcrum 72. In preferred embodiments, the second end 78 may extend beyond the second fulcrum. In further optional embodiments, the first end 77 may extend beyond the first fulcrum. Accordingly, in preferred embodiments, the length of the support belt portion 70a between the first fulcrum 71 and the second fulcrum 72 is selectably adjustable. Preferably the length of the support belt portion 70a between the first fulcrum 71 and the second fulcrum 72 may be adjusted by adjusting a position of an first end 77 or second end 78 of the bell 70. In the illustrated embodiments, the length of the support belt portion 70a between the first fulcrum 71 and the second fulcrum 72 may be adjusted by adjusting a position of the second end 78 of the belt 70. Preferably, the leading edge frame 30 further includes a leading edge bumper 38 mounted thereto. The bumper 38 may be configured to abut the leading edge of a blade 1 when it is supported by the support belt portion 70a. The bumper 38 can stop the blade 1 from sliding laterally in a direction towards the upstand 32 of the leading edge frame 30. Preferably, the leading edge bumper 38 may be mounted to the leading edge frame 30 via a fixing fitting 39 which allows position-adjustment of the bumper 38 in a lateral direction C in the transport frame 20. With the belt 70 being compliant, the bumper may inhibit any tendency for the blade 1 to move about.
    8
    DK 2020 00105 U1 Advantageously, the {railing edge support pad 44 may be mounied on the {railing edge frame 40. Preferably, the trailing edge support pad 44 may be mounted on the base part 46 of the trailing edge frame 40. Still preferably, the trailing edge support pad 44 may be mounted pivotable about a longitudinal axis L through the transport frame 20. Preferably, as shown for example in Figure 7, the trailing edge support pad 44 may be supported on a mounting 45. The mounting may be on a base part 36, 48. Specifically, the mounting 45 may be on the base part 46 of the {railing edge frame 40, As can be seen in the illustrated embodiments, especially in Figs. 7, 8 and 9, the base joint 60 may include a sliding engagement arrangement between the base parts 36, 46 of the leading edge frame 30 and trailing edge frame 40. The sliding engagement arrangement is preferably lockable in multiple relative engagement positions between the respective leading edge and railing edge frames 30, 40. Each lockable position may define a different respective size of the internal lateral dimension D of the transport frame 20. As can be seen from embodimenis per Fig. 2 or Fig. 8, the transport frame 20 may preferably further include a top clamp 50 having an arm 51 and a blade contact pad
    52. The top clamp 50 may be movable between an open, blade receiving position and a closed, blade retaining position. The open position of the top clamp 50 allows the placement or removal of a blade 1 respectively into or from the transport frame 20. When in a closed position, the top clamp 50 is configured to act on a blade 1 in the transport frame 50 to retain it in the transport frame 20. Preferably, the top clamp arm 51 may be hingedly supported on the transport frame 20 at a hinge point 53. The blade — contact pad 52 may thereby be disposed on the arm 51, spaced from the hinge point
    53. Preferably, the top clamp arm 51 may be hinged io trailing edge frame 40 e.g. supported by an upstand part 42 thereof. Preferably, the top clamp 50 may be configured, when in a closed position thereof, to — rest with its contact pad 52 against an aerofoil surface of a blade 1 when received in the transport frame 20 with the leading edge of the blade 1 being received in the leading edge support 31. This arrangement helps to restrain the blade 1 in the frame 20. To this end and as Hustrated for example in Figs. 4, 5 and 8, preferably, the transport frame 20 may include a preventer 58 associated with the top clamp 50 and acting to — prevent movement of the top clamp 50 in an opening direction when in a closed position of the top clamp 50, Preferably, the preventer 56 applies a force to the top clamp 80, 7
    DK 2020 00105 U1 urging it into contact with a blade received in the transport frame 20. The preventer 58 may in particular comprise a strap, as illustrated for example in Figure 4, The strap may for example be extended around peripheral parts of the transport frame 20. For example, the fame 20 may include one or more fastener eyes 55 for connecling a preventer strap, The preventer strap may thereby be tensioned to bias the top clamp 50, specifically a contact pad 52 thereof, down towards the blade 1. in an alternative embodiment, the preventer 55 may be provided in the form of a spring, as for example ilustrated in Fig. 5. The preventer spring may be a piston type spring. it may be engaged between the top clamp arm 51 and either the fralling edge frame 40 or the leading edge frame 30. In embodiments, the top clamp 50 may be hingedly connected to either the trailing edge frame 40 or the leading edge frame 30, in particular to an upstand part 32 or 42 thereof. in embodiments, e.g. as illustrated in Fig. 4, the contact pad 52 may be adjustably positioned at variable distances along the top clamp arm 51 away from the hinge point 53. In other words, the distance along the top clamp arm 51 between the hinge point 53 and the contact pad 52 may be selectably varied. in particular, the top clamp arm 81 may include multiple sslectable positions 84 for the contact pad 52. This arrangement may in particular further contribute to the flexibility of use of the transport frame 20. For example, a contact pad 52 can be adjusted to land on a designated part of a blade 1. Hereby, different blade designs, with different designated contact zones in their aerofoil regions, can be accommodated in a single transport frame 20. As can be seen in Figure 8, a preventer 56 may also be provided in the form of a pusher strut.
    The strut may be arranged hinged to an upstand part 32, 42 of a leading edge frame 30 or trailing edge frame 40. It may be arranged to push down on the top claim 50 increasing the restraining force imparted to the blade by the top clamp 50. Preferably, each of the leading edge and trailing edge frames 30, 40 may comprise a forward L-shaped frame element 30a, 40a and a rearward L-shaped frame element 30b, 40b.
    See eg.
    Figs. 7-9. These may be respectively spaced apart and joined together by one or more longitudinally extending struts 37, 47. Thus, a leading edge L-shaped frame 30 may comprise a pair of L-shaped frame elements 30a, 30b, joined together by struts 37. Atralling edge L-shaped frame 40 may comprise a pair of L- shaped frame elements 40a, 40b, joined together by struts 47. The leading edge support belt 70 may extend between the forward and rearward L-shaped frame elements 30a, 30b of the leading edge frame 30, The trailing edge support pad 44 8
    DK 2020 00105 U1 may extend in a longitudinal direction L between the forward and rearward L-shaped frame elements 40a, 40b of the trailing edge frame 40.
    The support bell 70 preferably terminates at first and second ends 77, 78 at a respective first and second fixing pin 75, 76. Each fixing pin 75, 76 may be journaled between forward and rearward L-frames 30a, 305 of the leading edge frame 30. The L-shaped frames elements 30a, 30b of the leading edge frame 30 comprise mulliple journaling positions 79 for at least one of each said fixing pin 75, 76. Al least one said fixing pin 75, 76 is thereby selectively positionable at any one of multiple journaling positions 79 thereby to vary the effective belt length between the said first and second fulcra 71, 72. in embodiments, the first fixing pin 75 may serve as the said first fulerum
    71. In embodiments, the second fixing pin 76 may be journalled at multiple locations 79 between said upstand parts 32 of said forward and rearward L-frames 30a, 30b of said trailing edge frame 30. The second fulcrum 72 may be positioned between the — upstand parts 32 of the forward and rearward L-frames 30a, 30b of the trailing edge frame 30. In particular, the second fulcrum 72 may be positioned at a position above the second fixing pin 76. in embodiments, as illustrated in Fig. 9, the base part 46 of the {railing edge frame 40 — maybe mounted on the base part 36 of the leading edge frame 30 at the base joint 60. Slidable engagement between the trailing edge frame 40 and the leading edge frame 30 may be ensured by any appropriate means such as by engaging a trailing edge frame base joint member 80b with a leading edge frame base joint member 60a. A desired lateral dimension D of the transport frame 20 may be selected by sliding the leading edge frame 30 and the trailing edge frame 40 in relation to each other and then locking them in the selscted position e.g. using a locking pin. in embodiments, a leading edge frame base joint member 60a may be slidably received within a trailing edge frame base joint member 60D, or vice-versa, The base joint 60 may optionally include adjustment elements 60c allowing selectable adjustment of the lateral dimension D. preferably, as illustrated e.g. in Fig. 8 the adjustment elements 80c may be in the form of selectable positioning elements each corresponding to a respective lateral dimension D. Selectable positioning elements may be lockable using a locking element, for example, with a paw! or a pin, as shown. Optionally, the transport frame 20 may include handling features such as fork lift pockets 23. Optionally, the transport frame 20 may include handling features such as one more lifting eyes 24. 9
    DK 2020 00105 U1 The transport frame 20 is configured to receive a blade 1 into its internal space having & lateral dimension D, defined by the leading edge frame 30 and the trailing edge frame
    40. For example, a blade may be placed into an open frame 20, as shown in Figs. 1 or 2. Ablade 1 may in particular be placed with a tip portion 3 thereof resting such that aleading edge support 31 of said frame 20 supports the blade tip portion 3 at a leading edge region 3a thereof and such that a tralling edge support 41 of said frame 20 supports the blade tip portion 3 at a trailing edge region 3b thereof. in particular, a helt portion 70a is configured to receive and support the leading edge region Ja at an underside of the blade 1, while a support pad 44 is configured to receive and support the trailing edge region 3b at the underside of the blade 1. A leading edge buffer 38 may ensured that a predefined position of the blade tip portion 3 within the frame 20 is adopted, namely by abutting the blade leading edge with the buffer 38. in this position, the blade trailing edge region 3b will rest on the support pad 44 at a predefined location on the blade’s surface, thereby ensuring that support forces are only applied to the blade 1 at designated locations, e.g. where the blade structure may be reinforced from within such as by a web or other internal structural element. With the blade 1 adopting a predefined position in a frame 20, a top clamp 50 may be moved into a closed position as shown for example in Fig. 3. A contact pad 52 of the top clamp 50 may contact and apply a downward force on a top aerofoil surface of the blade, thereby ensure the blade 1 does not move about in the frame 20. Friction forces between the contact pad 52 and the blade top surface will help to ensure the blade does nol move laterally in the frame. The frame 20 may be adjusted to ensure its lateral dimension D can accommodate the relevant blade 1 or a relevant tip portion 3 thereof. Moreover, when a blade 1 is in the transport frame 20, the frame 20 is configured to allow adjustment of the distance between the blade's leading edge and the support pad 44. This may be achieved for example by changing the spacing between the leading edge frame 30 and the trailing edge frame, namely by adjusting the base joint 60. This alters the lateral dimension D of the frame 20. in this way, it may be ensured that the {railing edge support pad 44 is always optimally positioned beneath a designated blade 1 at a — support location, e.g. an internally reinforced location of the blade 1, and thereby a location where its supporting function will not risk blade damage. The transport frame 20 allows further adjustment io accommodate different blade shapes or sizes by e.g. allowing adjustment of the support belt 70. in particular, the support bell portion 70a on which the blade 1 rests may be adjusted in length. This may be used for example — for changing the blade position in the frame 20. Alternatively, it may allow to change the space available in the frame 20 for receiving a different sized blade 1 or a different 10
    DK 2020 00105 U1 sized blade portion 3. Preferably, an end 77, 78 of the belt 70 may be moved from an initial position 79 fixed to a rigid part of the transport frame 20 to another position 79 which creates more or less length of belt in the belt portion 70a between the fulcra 71,
    72. in the examples shown in Figs. 1-6 or Fig. 9, a second belt end 78 may be moved from an initial jounaling position79 on an upstand part 32 of the trailing edge frame 30 to a position closer to or further way from the second fulcrum 72, leading fo a corresponding change of the effective length of the support belt portion 70a between the fulcra 71, 72.
    — For increasing the restraining effect of a transport frame 20 on a blade 1 supported in it, the frame 20 may additionally be provided with a preventer 56. This serves to increase the clamping effect of the top clamp 50 on the blade 1. In particular, a preventer 56 may be arranged between the leading edge frame 30 or the trailing edge frame 40 and the top clamp 50. See for example the embodiments illustrated in Figs.
    4-8. Optionally, a preventer 56 may be arranged between the leading edge frame 30 or the trailing edge frame 40 and the contact pad 52 of the top clamp 50. As shown in Fig. 4, a preventer 56 in the form of a strap, such as a ratchet strap, may be attached to rigid parts of the transport frame 20 and run over the top of the blade and or over parts of the top clamp 50. When fixed at two ends in position on the frame 20, these maybe drawn taut to increase downward pressure on the blade 1 preventing it from moving within the frame 20. More preferably, a preventer 58 may be arranged between the leading edge frame 30 or the {railing edge frame 40 and the top clamp arm 51, as shown for example in Fig. 5 or 8.
    The term "transport frame” used herein refers equally to a transport and/or storage frame. The term “height” or "upstand” used herein may be understood as generally orthogonal with reference to a lateral direction C and longitudinal direction L. The term “leading edge” used herein may denote a leading edge region 3a of a blade 1 which may include a veriest leading edge and paris immediately adjacent thereto. The term — "leading edge” may also refer to that half of a blade which, when seen in cross section, lies forward of a median line thickness-wise through the blade 1 aerofoil shape. Similarly, the term “trailing edge” used herein may denote a trailing edge region 3b of a blade 1 which may include a veriest trailing edge and paris immediately adjacent thereto. The term “trailing edge” may also refer to that half of a blade which, when seen in cross section, lies rearward of a median line thickness-wise through the blade 1 aerofoll shape. Forward and rearward, in the context of an aerofoil, refer to air flow 11
    DK 2020 00105 U1 direction which would create lift when passing from a leading to a trailing edge. The term “fulcrum” as used herein denotes a fixed support element between the transport frame parts 30, 40 and the belt 70.
    Although the invention has been described above with reference to one or more preferred embodiments, it will be appreciated that various changes or modifications may be made without departing from the scope of the invention as defined in the appended claims.
    12
    权利要求:
    Claims (16)
    [1] 1. A wind turbine blade transport frame (20) configured to receive and support a wind turbine blade at a portion of a tip region thereof, said transport frame (20) including a leading edge support (31) comprising a compliant support bell portion (70a) extending between a first and a second fulcrum (71, 72) and configured to support a said blade at a leading edge thereof, characterised in that said blade transport frame (20) comprises a leading-edge frame (30) and a trailing edge frame (40) each of which is L-shaped with an upstand part (32, 42) projecting from a laterally extending base part (36, 46), and wherein the respective base parts (36, 46) of said leading edge and trailing edge frames (30, 40) are connected together at a base joint (60) thereby to define said transport frame (20) and a lateral internal dimension (D) thereof, 18 wherein said transport frame (30) is configured for receiving a said blade tip portion with its chordwise dimension oriented laterally (0), said first belt fulcrum (71) of said leading edge support (31) being mounted at a said base part (36, 46), and said second belt fulcrum (72) of said leading edge support (31) being mounted at a said upstand part (32, 42); said transport frame (20) further comprising a trailing edge support (41) including a support pad (44) mounted at a said base part (36, 49), and wherein said internal lateral dimension (D) of said transport frame (20) is selectably variable by adjusting said base joint (60).
    [2] 2 The transport frame (20) according to claim 1, wherein said first and second fulcra (71, 72) are both arranged on said leading edge frame (30).
    [3] 3. The transport frame (20) according to claim 1, wherein the length of said support belt portion (70a) between said first fulcrum (71) and said second fulcrum (72) — is adjustable.
    [4] 4, The transport frame (20) according to claim 1, wherein said leading edge frame (30) further includes a leading edge bumper (38) mounted thereto.
    [5] 5. The transport frame (20) according to claim 4, wherein said leading edge bumper (38) is mounted to said leading edge frame (30) via a fixing fitling (39) which 13
    DK 2020 00105 U1 14 allows position-adjustment of said bumper (38) in a lateral direction (C) relative to said transport frame (20).
    [6] 6. The transport frame (20) according to claim 1, wherein said trailing edge support pad (44) is mounted on said trailing edge frame (40).
    [7] 7. The transport frame (20) according to claim 6, wherein said trailing edge support pad (44) is mounted pivotable about a longitudinal axis (L) through said transport frame (20).
    [8] 3. The transport frame (20) of claim 1, wherein said base joint (80) includes a sliding engagement arrangement between said base parts (36, 46) of said leading edge frame (30) and said trailing edge frame (40); said sliding engagement arrangement being lockable in multiple relative engagement positions between said leading edge and trailing edge frames (30, 40), each lockable position defining a different respective size of said internal lateral dimension (D) of said transport frame (20).
    [9] 9. The transport frame (20) according to claim 1, further comprising a top clamp (80) having an arm (31) and a blade contact pad (52), said top clamp (50) being movable between an open, blade receiving position and a closed, blade retaining — position; said open position of said top clamp (50) allowing placement or removal of a said blade respectively into or from said transport frame (20), and said top clamp (50), in a closed position thereof, being configured to act on a blade in said transport frame (50) to retain it in the transport frame (20).
    [10] — 10. The transport frame (20) according to claim 9, said top clamp arm (51) being hingedly supported on said transport frame (20) at a hinge point (53) and said blade contact pad (52) being disposed on said arm (51) spaced from said hinge point (53).
    [11] 11. The transport frame (20) according to claim 9 or 10, said top clamp (50) being configured, when in a closed position thereof, to rest with is contact pad (52) against an aerofoil surface of a blade when received in said transport frame (20) with the leading edge of a said blade being received in said leading edge support 31).
    [12] 12. The transport frame (20) according to any claim 8 to 11, further comprising a 38 preventer (58) associated with said top clamp (50) and acting to prevent movement of 14
    DK 2020 00105 U1 15 said top clamp (30) in an opening direction when in a closed position thereof, preferably wherein said preventer (56) applies a force to said top clamp (50), urging said top clamp (50) into contact with a blade received in said transport frame (20); said preventer (56) comprising in particular a strut or a strap or a spring.
    [13] 13. The transport frame (20) according to claim 1, wherein each of said leading edge and trailing edge frames (30, 40) comprises a forward L-shaped frame element (30a, 403) and a rearward L-shaped frame element (30b, 40b} respectively spaced apart and joined together by one or more longitudinally extending struts (37, 47); wherein said leading edge support belt (70) extends between said forward and rearward L-shaped frame elements (30a, 30D) of said leading edge frame (30), and wherein said trailing edge support pad (44) extends in a longitudinal direction (L) between said forward and rearward L-shaped frame elements (40a, 40b) of said trailing edge frame (40).
    [14] 14. The transport frame (20) according to claim 1, wherein said base part (46) of said trailing edge frame (40) is mounted on said base part (36) of said leading edge frame (30) at said base joint (60).
    [15] 15. Road transport vehicle (6) configured to transport a wind turbine blade (1) and including & tractor (4) and a trailer (5, 9), said trailer (5, 9) having fixed thereon a transport frame (20) according to any preceding claim.
    [16] 16. Road transport vehicle (6) according to claim 15, wherein said transport frame (20) is supported on a rocker table (10) on said trailer (5, 9).
    15
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    同族专利:
    公开号 | 公开日
    DK202000105Y3|2020-11-27|
    DE202021105524U1|2021-11-18|
    CN215908002U|2022-02-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP3486205B1|2017-11-21|2020-09-09|Siemens Gamesa Renewable Energy A/S|Support structure for a wind turbine blade|
    法律状态:
    2020-10-27| UAT| Utility model published|Effective date: 20201016 |
    2020-11-27| UME| Utility model registered|Effective date: 20201127 |
    优先权:
    申请号 | 申请日 | 专利标题
    DKBA202000105U|DK202000105Y3|2020-10-16|2020-10-16|Transportramme til et vindturbineblad|DKBA202000105U| DK202000105Y3|2020-10-16|2020-10-16|Transportramme til et vindturbineblad|
    DE202021105524.3U| DE202021105524U1|2020-10-16|2021-10-12|Transport frame for a wind turbine blade|
    CN202122493063.3U| CN215908002U|2020-10-16|2021-10-14|Wind turbine blade transport frame and road transport vehicle|
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