Transport and storage rack for wind turbine blades

Abstract

The application discloses a kind of transport storage frame of wind power blade, including lower base, upper base and support rod;Upper base is detachably installed in lower base, and upper base and lower base jointly form containing space for containing wind power blade;Support rod is detachably connected between upper base and lower base, and support rod is located at the two sides of transport storage frame along left and right direction;The front end of lower base is provided with downward recessed limit lower groove, the front end of upper base is provided with upward recessed limit upper groove, and limit lower groove and limit upper groove jointly form containing groove for containing blade root of wind power blade;The top of rear end of lower base is provided with fixing ring, and fixing ring is used to accommodate the tail of wind power blade, and fixing ring is flexibly connected with the rear end of lower base.The transport storage frame provided in the scheme is beneficial to improve the transport stability of wind power blade, avoid displacement of wind power blade during offshore transportation, and prevent damage to wind power blade during transportation.

Description

Technical Field

[0001] This invention relates to the field of offshore wind power installation technology, and in particular to a transport and storage rack for wind turbine blades. Background Technology

[0002] Wind energy, as a clean and harmless renewable energy source, is receiving increasing attention from humankind. Among them, compared with onshore wind energy, offshore wind energy resources not only have higher wind speeds, but are also farther from the coastline, are not affected by noise limits, and allow for the manufacture of larger turbine units.

[0003] Offshore wind turbines (also known as offshore wind generators or offshore wind turbines) are a new type of power generation equipment that utilizes offshore wind resources to generate electricity. They typically include wind turbine blades, a turbine head (i.e., the rotor and nacelle), a tower, and a foundation. The foundation is located on the seabed and is used to support and fix the tower. It plays a crucial role in the overall safety of the offshore wind turbine. The bottom of the tower is fixed to the foundation, and the top of the tower is fixed to the turbine head. The turbine head is used to install several wind turbine blades, which are driven to rotate by wind energy to realize the utilization of wind energy.

[0004] Due to the complex and variable marine environment, offshore wind turbines are far more challenging to construct from foundation to installation than onshore wind turbines. Therefore, the flexibility and adaptability of offshore wind turbines in foundation construction and installation are important indicators for evaluating their performance.

[0005] Currently, the main installation method for offshore wind turbines is the complete offshore installation. This involves first assembling the turbine components (excluding the foundation) at a land-based assembly base, then transporting them to the planned offshore wind farm via a wind turbine installation platform or crane vessel, and finally installing the assembled turbine components onto the offshore foundation. This installation method is divided into land-based and offshore installation phases. While the land-based installation phase can reduce the difficulty of offshore wind turbine installation to some extent, the offshore installation phase places extremely high demands on the lifting capacity of the cranes, resulting in high lifting costs and very limited applicable lifting conditions.

[0006] Therefore, to reduce the lifting weight requirements and costs of installation cranes during the offshore installation phase, some marine engineering companies have begun to explore transporting offshore wind turbine components to the vicinity of designated offshore foundations via offshore installation vessels, and then completing the entire installation process directly at sea. However, because the storage racks used to store wind turbine blades on current offshore installation vessels are still land-based racks, lacking structural design for offshore transportation, the wind turbine blades are prone to displacement during sea transport, increasing the risk of safety accidents for the installation vessels during navigation. Furthermore, the transport process may damage the wind turbine blades, reducing the installation quality of the offshore wind turbines. Summary of the Invention

[0007] The purpose of this invention is to provide a transport and storage rack for wind turbine blades, which is beneficial to improving the transport stability of wind turbine blades, preventing displacement of wind turbine blades during sea transport, and preventing damage to wind turbine blades during transport, thereby overcoming the shortcomings of the prior art.

[0008] To achieve this objective, the present invention adopts the following technical solution:

[0009] A transport and storage rack for wind turbine blades includes a lower base, an upper base, and support rods; the upper base is detachably mounted on the lower base, and the upper base and the lower base together form a receiving space for accommodating wind turbine blades; several support rods are provided, and the support rods are detachably connected between the upper base and the lower base, and the support rods are located on both sides of the transport and storage rack in the left-right direction;

[0010] The lower base has a downwardly recessed lower limiting groove at its front end, and the upper base has an upwardly recessed upper limiting groove at its front end. The lower limiting groove and the upper limiting groove together form a receiving groove for accommodating the blade root of the wind turbine blade.

[0011] A fixing ring is provided at the top of the rear end of the lower base. The fixing ring is used to accommodate the blade tip of the wind turbine blade, and the fixing ring is flexibly connected to the rear end of the lower base.

[0012] Preferably, it further includes a reinforcing block, which is detachably installed at the front end of the lower base and the upper base, and the reinforcing block is used to connect the upper base and the lower base.

[0013] Preferably, it also includes fasteners; the edge of the reinforcing block is evenly provided with a number of mounting through holes, and the front ends of the lower base and the upper base are provided with a number of mounting countersunk holes respectively. After the fasteners pass through the mounting through holes and the mounting countersunk holes in sequence, the upper base and the lower base are connected.

[0014] Preferably, the end of the leaf root is provided with several connecting screws;

[0015] The interior of the reinforcing block is provided with several uniformly spaced clearance through holes, which are used to avoid the connecting screw.

[0016] Preferably, the upper base has several hinge seats on its bottom sides along the left-right direction and the lower base has several hinge seats on its top sides along the left-right direction, and the support rod is inclinedly hinged between the hinge seats of the upper base and the hinge seats of the lower base.

[0017] Preferably, the lower base is provided with a plurality of placement seats on the top two sides along the left and right direction, and the top of the placement seat is provided with a placement groove for accommodating the support rod;

[0018] The placement slots extend in the front-to-back direction, and all placement slots located on the same side of the lower base are on the same straight line.

[0019] Preferably, the fixing ring is made of a flexible material.

[0020] Preferably, the bottom of the lower base is recessed inward and a positioning groove is provided, and the top of the upper base is provided with a positioning beam, and the positioning groove is used to accommodate the positioning beam;

[0021] The upper base and the lower base constitute a set of transport fixtures. Several sets of transport fixtures are provided, and the several sets of transport fixtures are stacked and installed vertically through the positioning groove and the positioning beam.

[0022] Preferably, it also includes a locking pin;

[0023] The positioning groove has symmetrical locking holes on both sides in the left-right direction, and the positioning beam has locking channels extending in the left-right direction. Both the locking holes and the locking channels are used to accommodate the locking pins. The locking pins install the positioning beam into the positioning groove through the locking holes and the locking channels.

[0024] Preferably, multiple sets of locking holes are provided, and the multiple sets of locking holes are evenly distributed along the front-back direction of the positioning groove;

[0025] The locking channel has multiple openings, and the multiple locking channels are evenly distributed along the front and rear direction of the positioning beam.

[0026] The technical solution provided by this invention may include the following beneficial effects:

[0027] 1. The upper base front end and the lower base front end of this solution are respectively provided with upper and lower limiting grooves for limiting the installation of the blade root, which is conducive to realizing the limiting installation of the blade root in the wind turbine blade; in addition, for the blade tail of the wind turbine blade, a fixing ring is set to realize its limiting installation on the lower base, so as to prevent the wind turbine blade from shifting during transportation.

[0028] 2. Since the fixed ring is flexibly connected to the rear end of the lower base in this solution, the flexible connection method can prevent the blade tail from directly colliding with the transport and storage rack to a certain extent during transportation, thus reducing the risk of wind turbine blade damage. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a wind turbine blade transport and storage rack according to the present invention.

[0030] Figure 2 This is a schematic diagram of the structure of a wind turbine blade transport and storage rack according to another perspective of the present invention.

[0031] Figure 3 This is a diagram showing the usage state of a transport and storage rack for wind turbine blades according to the present invention.

[0032] Figure 4 This is an exploded view of the structure of a transport and storage rack for wind turbine blades according to the present invention.

[0033] Figure 5 This is a schematic diagram of the stacked installation of multiple sets of transport tools in a transport and storage rack for wind turbine blades according to the present invention.

[0034] Among them: lower base 1, lower limiting groove 101, positioning groove 102, locking hole 1021, fixing ring 11, upper base 2, upper limiting groove 201, positioning beam 202, locking channel 2021, support rod 3, wind turbine blade 4, blade root 41, connecting screw 411, blade tail 42, reinforcing block 5, clearance through hole 501, fastener 6, hinge seat 7, placement seat 8. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] This technical solution provides a transport and storage rack for wind turbine blades, including a lower base 1, an upper base 2, and support rods 3; the upper base 2 is detachably installed on the lower base 1, and the upper base 2 and the lower base 1 together form a receiving space for accommodating wind turbine blades 4; several support rods 3 are provided, and the support rods 3 are detachably connected between the upper base 2 and the lower base 1, and the support rods 3 are located on both sides of the transport and storage rack in the left-right direction;

[0037] The lower base 1 has a downwardly recessed lower limiting groove 101 at its front end, and the upper base 2 has an upwardly recessed upper limiting groove 201 at its front end. The lower limiting groove 101 and the upper limiting groove 201 together form a receiving groove for accommodating the blade root 41 of the wind turbine blade 4.

[0038] A fixing ring 11 is provided at the top of the rear end of the lower base 1. The fixing ring 11 is used to accommodate the blade tail 42 of the wind turbine blade 4, and the fixing ring 11 is flexibly connected to the rear end of the lower base 1.

[0039] To prevent the wind turbine blade 4 from shifting during sea transport and to avoid damage to the wind turbine blade 4 during transportation, this technical solution proposes a transport and storage rack for the wind turbine blade, such as... Figure 1-4 As shown, it includes an upper base 2 and a lower base 1 that together form a space for accommodating the wind turbine blade 4, and a support rod 3 for connecting the upper base 2 and the lower base 1.

[0040] Specifically, the upper base 2 and the lower base 1 of this design are respectively provided with upper limiting groove 201 and lower limiting groove 101 for limiting the installation of the blade root 41, which is beneficial to realizing the limiting installation of the blade root 41 in the wind turbine blade 4. In addition, for the blade tail 42 of the wind turbine blade 4, a fixing ring 11 is set to limit its installation on the lower base 1 to prevent the wind turbine blade 4 from shifting during transportation. Furthermore, since the fixing ring 11 is flexibly connected to the rear end of the lower base 1 in this design, if the transport storage rack encounters waves or other influences that cause shaking during transportation, the flexible connection can, to a certain extent, prevent the blade tail 42 from directly colliding with the transport storage rack, reducing the risk of damage to the wind turbine blade 4.

[0041] It should be noted that the fixing ring 11 and the rear end of the lower base 1 in this solution can be connected by flexible connectors such as chains and steel ropes, which is not limited here.

[0042] Furthermore, it also includes a reinforcing block 5, which is detachably installed at the front end of the lower base 1 and the upper base 2, and the reinforcing block 5 is used to connect the upper base 2 and the lower base 1.

[0043] In a preferred embodiment of this technical solution, a reinforcing block 5 is added between the upper base 2 and the lower base 1 to enhance the connection strength between the upper base 2 and the lower base 1, and further prevent the transport storage rack from detaching during transportation.

[0044] Furthermore, it also includes fasteners 6; the edge of the reinforcing block 5 is evenly provided with several mounting through holes, and the front ends of the lower base 1 and the upper base 2 are provided with several mounting countersunk holes respectively. After the fasteners 6 pass through the mounting through holes and the mounting countersunk holes in sequence, the upper base 2 and the lower base 1 are connected.

[0045] As a preferred embodiment of the above, this solution connects the upper base 2 and the lower base 1 by having the fastener 6 pass through the mounting through hole and the mounting countersunk hole in sequence, thereby further enhancing the connection strength between the upper base 2 and the lower base 1.

[0046] To further explain, several connecting screws 411 are protruding from the end of the blade root 41;

[0047] The interior of the reinforcing block 5 is provided with a plurality of clearance through holes 501, which are used to avoid the connecting screw 411.

[0048] As another preferred embodiment, this solution also provides a clearance through hole 501 in the reinforcing block 5 that matches the connecting screw 411, so as to further ensure the stable installation of the wind turbine blade 4 in the transport and storage rack.

[0049] It should be noted that the end of the blade root 41 is generally provided with several connecting screws 411 to facilitate connection with the nacelle hub of the wind turbine generator during installation.

[0050] To further explain, the upper base 2 has several hinge seats 7 on its bottom sides along the left and right direction and the lower base 1 has several hinge seats 7 on its top sides along the left and right direction. The support rod 3 is inclinedly hinged between the hinge seats 7 of the upper base 2 and the hinge seats 7 of the lower base 1.

[0051] In another preferred embodiment of this technical solution, the connection method at both ends of the support rod 3 is hinged, so that there is a relative rotational margin between the support rod 3 and the upper base 2, and between the support rod 3 and the lower base 1, which is more conducive to buffering the shaking generated during transportation and avoiding direct damage to the transport storage rack.

[0052] To further explain, the lower base 1 has several placement seats 8 on its top two sides along the left and right direction, and the top of each placement seat 8 has a placement groove for accommodating the support rod 3.

[0053] The placement slots extend in the front-to-back direction, and all placement slots located on the same side of the lower base 1 are on the same straight line.

[0054] In addition, this solution also provides placement seats 8 on the top two sides of the lower base 1 along the left and right directions for placing support rods 3, so as to facilitate the installation, disassembly and storage of various components in the transport storage rack.

[0055] To further clarify, the fixing ring 11 is made of a flexible material.

[0056] In a more preferred embodiment of this technical solution, the fixing ring 11 can be made of flexible materials such as silicone, rubber, or cloth, which is more conducive to avoiding direct collision between the wind turbine blade 4 and the transport and storage rack, and further reducing the damage to the wind turbine blade 4.

[0057] To further explain, the bottom of the lower base 1 is recessed inward and a positioning groove 102 is provided, and the top of the upper base 2 is provided with a positioning beam 202. The positioning groove 102 is used to accommodate the positioning beam 202.

[0058] The upper base 2 and the lower base 1 form a set of transport fixtures. Several sets of transport fixtures are provided, and the several sets of transport fixtures are stacked and installed vertically through the positioning groove 102 and the positioning beam 202.

[0059] To facilitate the unified transportation of multiple wind turbine blades 4, this solution also adds a structure to the transport storage rack for stacking and installing transport tooling, such as... Figure 5 As shown, this is to reduce the space occupied by the transport storage rack during transportation.

[0060] To elaborate further, it also includes locking pins (not shown in the diagram);

[0061] The positioning groove 102 has symmetrical locking holes 1021 on both sides in the left-right direction, and the positioning beam 202 has a locking channel 2021 extending in the left-right direction. Both the locking holes 1021 and the locking channel 2021 are used to accommodate the locking pin. The locking pin installs the positioning beam 202 into the positioning groove 102 through the locking holes 1021 and the locking channel 2021.

[0062] Furthermore, in order to strengthen the connection between two adjacent transport fixtures in a stacked arrangement, this solution also adds a locking pin to achieve locking between the two transport fixtures.

[0063] To further explain, multiple sets of locking holes 1021 are provided, and the multiple sets of locking holes 1021 are evenly distributed along the front-back direction of the positioning groove 102.

[0064] Multiple locking channels 2021 are provided, and the multiple locking channels 2021 are evenly distributed along the front and rear direction of the positioning beam 202.

[0065] Furthermore, multiple sets of locking structures are designed to achieve the locking between the two transport fixtures, so as to further enhance the connection strength between the two adjacent transport fixtures.

[0066] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0067] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0068] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0069] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0070] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0071] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0072] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A transport and storage rack for wind turbine blades, characterized in that: It includes a lower base, an upper base, and support rods; the upper base is detachably installed on the lower base, and the upper base and the lower base together form a receiving space for accommodating wind turbine blades; several support rods are provided, and the support rods are detachably connected between the upper base and the lower base, and the support rods are located on both sides of the transport and storage rack in the left-right direction; The lower base has a downwardly recessed lower limiting groove at its front end, and the upper base has an upwardly recessed upper limiting groove at its front end. The lower limiting groove and the upper limiting groove together form a receiving groove for accommodating the blade root of the wind turbine blade. A fixing ring is provided at the top of the rear end of the lower base. The fixing ring is used to accommodate the blade tip of the wind turbine blade, and the fixing ring is flexibly connected to the rear end of the lower base. The upper base has several hinge seats on its bottom sides along the left and right direction and the lower base has several hinge seats on its top sides along the left and right direction. The support rod is inclinedly hinged between the hinge seats of the upper base and the hinge seats of the lower base. The fixing ring is made of a flexible material.

2. The wind turbine blade transport and storage rack according to claim 1, characterized in that: It also includes a reinforcing block, which is detachably installed at the front end of the lower base and the upper base, and the reinforcing block is used to connect the upper base and the lower base.

3. The wind turbine blade transport and storage rack according to claim 2, characterized in that: It also includes fasteners; the edge of the reinforcing block is evenly provided with a number of mounting through holes, and the front ends of the lower base and the upper base are provided with a number of mounting countersunk holes. After the fasteners pass through the mounting through holes and the mounting countersunk holes in sequence, the upper base and the lower base are connected.

4. The wind turbine blade transport and storage rack according to claim 2, characterized in that: Several connecting screws protrude from the end of the leaf root; The interior of the reinforcing block is provided with several uniformly spaced clearance through holes, which are used to avoid the connecting screw.

5. The transport and storage rack for wind turbine blades according to claim 1, characterized in that: The lower base has several placement seats on its top two sides along the left and right directions, and the top of each placement seat has a placement groove for accommodating the support rod. The placement slots extend in the front-to-back direction, and all placement slots located on the same side of the lower base are on the same straight line.

6. The transport and storage rack for wind turbine blades according to claim 1, characterized in that: The bottom of the lower base is recessed inward and has a positioning groove, while the top of the upper base has a protruding positioning beam. The positioning groove is used to accommodate the positioning beam. The upper base and the lower base constitute a set of transport fixtures. Several sets of transport fixtures are provided, and the several sets of transport fixtures are stacked and installed vertically through the positioning groove and the positioning beam.

7. A transport and storage rack for wind turbine blades according to claim 6, characterized in that: It also includes locking pins; The positioning groove has symmetrical locking holes on both sides in the left-right direction, and the positioning beam has locking channels extending in the left-right direction. Both the locking holes and the locking channels are used to accommodate the locking pins. The locking pins install the positioning beam into the positioning groove through the locking holes and the locking channels.

8. The transport and storage rack for wind turbine blades according to claim 7, characterized in that: The locking holes are provided in multiple sets, and the multiple sets of locking holes are evenly distributed along the front and back direction of the positioning groove. The locking channel has multiple openings, and the multiple locking channels are evenly distributed along the front and rear direction of the positioning beam.

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