Transportation and storage rack for wind power blades

Abstract

The invention discloses a transportation and storage rack for wind power blades. The transportation and storage rack comprises a lower base, an upper base and a supporting rod. The upper base is detachably installed on the lower base, and the upper base and the lower base jointly define a containing space used for containing wind power blades. The supporting rods are detachably connected between the upper base and the lower base, and the supporting rods are located on the two sides, in the left-right direction, of the transportation and storage frame. The front end of the lower base is provided with a downwards-sunken limiting lower groove, the front end of the upper base is provided with an upwards-sunken limiting upper groove, and the limiting lower groove and the limiting upper groove jointly define a containing groove used for containing the blade root of the wind power blade. A fixing ring is arranged at the top of the rear end of the lower base, used for containing the blade tail of the wind power blade and flexibly connected with the rear end of the lower base. According to the transportation and storage frame, the transportation stability of the wind power blades can be improved, displacement of the wind power blades in the marine transportation process is avoided, and damage to the wind power blades in the transportation process is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power installation, and in particular to a transport and storage rack for wind power blades. Background Art

[0002] As a clean and harmless renewable energy, wind energy is increasingly valued by humans. Compared with land-based wind energy, offshore wind energy resources not only have higher wind speeds, but are also farther away from the coastline, are not affected by noise limits, and can allow for larger units.

[0003] An offshore wind turbine (offshore wind turbine or offshore wind turbine for short) is a new type of power generation equipment that uses offshore wind resources to generate electricity. It usually includes wind blades (i.e. wind turbine blades), a wind turbine head (i.e. wind wheel and nacelle), a tower and a foundation. The foundation is set on the seabed to support and fix the tower, which plays a vital role in the safety of the entire offshore wind turbine. The bottom end of the tower is fixed on the foundation, and the wind turbine head is fixed on the top. The wind turbine head is used to install a number of wind blades, and the wind energy drives the rotation of the wind blades to facilitate the utilization of wind energy.

[0004] Due to the complex and changeable offshore environment, offshore wind turbines are much more difficult to build than onshore wind turbines, from foundation construction to installation. Therefore, whether offshore wind turbines have good flexibility and adaptability in foundation construction and installation is an important indicator for evaluating their performance.

[0005] At present, the existing installation method of offshore wind turbine generator sets is mainly offshore installation of the whole machine, that is, first assemble the wind turbine unit components except the foundation at the land assembly base, then transport them to the planned offshore wind farm through the wind power installation platform or crane ship, and finally install the assembled wind turbine unit components on the foundation located at sea. The above installation method is divided into a land installation stage and an offshore installation stage. Among them, although the land installation stage can reduce the installation difficulty of offshore wind turbines to a certain extent, the offshore installation stage has extremely high requirements for the lifting weight of the installation crane, the lifting cost is also very high, and the applicable lifting conditions are very limited.

[0006] Therefore, in order to reduce the lifting requirements and lifting costs of the installation crane during the offshore installation stage, some marine engineering companies have begun to try to transport the components of offshore wind turbines to the vicinity of the designated offshore foundation by offshore installation ships, and then complete the entire process of offshore wind turbine installation directly at sea. However, since the storage racks used to store wind turbine blades in current offshore installation ships are still storage racks used on land, there is a lack of structural design for the offshore transportation process, which makes it easy for wind turbine blades to shift during offshore transportation, making it easy for offshore installation ships to have safety accidents during driving; in addition, the wind turbine blades may be damaged during transportation, reducing the installation quality of offshore wind turbines. Summary of the invention

[0007] The purpose of the present invention is to provide a transport storage rack for wind turbine blades, which is beneficial to improving the transport stability of wind turbine blades, avoiding displacement of wind turbine blades during sea transportation, and preventing damage to wind turbine blades during transportation, so as to overcome the shortcomings of the prior art.

[0008] To achieve this object, the present invention adopts the following technical solutions:

[0009] A transport and storage rack for wind turbine blades, comprising 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 storage space for accommodating wind turbine blades; a plurality of support rods are provided, 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 along the left and right directions;

[0010] The front end of the lower base is provided with a downwardly concave limiting lower groove, and the front end of the upper base is provided with an upwardly concave limiting upper groove, and the limiting lower groove and the limiting upper groove together form a receiving groove for receiving the blade root of the wind turbine blade;

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

[0012] Preferably, a reinforcement block is further included, wherein the reinforcement block is detachably mounted on the front ends of the lower base and the upper base, and the reinforcement block is used to connect the upper base and the lower base.

[0013] Preferably, it also includes fasteners; a plurality of mounting through holes are evenly opened on the edge of the reinforcement block, and a plurality of mounting countersunk holes are correspondingly opened on the front end surfaces of the lower base and the upper base, and the fasteners pass through the mounting through holes and the mounting countersunk holes in sequence to connect the upper base and the lower base.

[0014] Preferably, a plurality of connecting screws are protrudingly provided at the end of the blade root;

[0015] A plurality of avoidance through holes are evenly arranged inside the reinforcement block, and the avoidance through holes are used to avoid the connecting screws.

[0016] Preferably, a plurality of hinge seats are provided on both sides of the bottom of the upper base along the left-right direction and on both sides of the top of the lower base along the left-right direction, and the support rod is hinged obliquely 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 both sides of the top along the left-right direction, and the top of the placement seat is provided with a placement groove for accommodating the support rod;

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

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

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

[0021] The upper base and the lower base form a set of transport tools, and the transport tools are provided in a plurality of groups, and the plurality of groups of transport tools are stacked and installed in a vertical direction through the positioning grooves and the positioning beams.

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

[0023] The positioning groove is symmetrically provided with locking holes on both sides along the left and right directions, and the positioning beam is provided with a locking channel extending along the left and right directions, and both the locking hole and the locking channel are used to accommodate the locking pin; the locking pin installs the positioning beam in the positioning groove through the locking hole and the locking channel.

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

[0025] There are multiple locking channels, and the multiple locking channels are evenly distributed along the front-to-back direction of the positioning beam.

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

[0027] 1. The front ends of the upper base and the lower base of the present invention are respectively provided with an upper limiting groove and a lower limiting groove for limiting the installation of the blade root, which is conducive to the limited 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 provided to achieve its limited installation on the lower base to avoid displacement of the wind turbine blade during transportation.

[0028] 2. Since the fixing ring in this solution is flexibly connected to the rear end of the lower base, during transportation, the flexible connection method can prevent the direct collision between the blade tail and the transportation storage rack to a certain extent, reducing the risk of damage to the wind turbine blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a wind turbine blade transport and storage rack from one perspective of the present invention.

[0030] Figure 2 It is a structural schematic diagram of a wind turbine blade transport and storage rack of the present invention from another perspective.

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

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

[0033] Figure 5 It is a schematic diagram of the stacking and installation of multiple groups of transport tooling in a transport and storage rack for wind turbine blades of the present invention.

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

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] The technical solution provides a transport and storage rack for wind turbine blades, comprising a lower base 1, an upper base 2 and a support rod 3; the upper base 2 is detachably mounted on the lower base 1, and the upper base 2 and the lower base 1 together form a storage space for accommodating wind turbine blades 4; the support rod 3 is provided with a plurality of bars, the support rod 3 is detachably connected between the upper base 2 and the lower base 1, and the support rod 3 is located on both sides of the transport and storage rack along the left and right directions;

[0037] The front end of the lower base 1 is provided with a downwardly concave lower limiting groove 101, and the front end of the upper base 2 is provided with an upwardly concave upper limiting groove 201, and the lower limiting groove 101 and the upper limiting groove 201 together form a receiving groove for receiving the blade root 41 of the wind turbine blade 4;

[0038] A fixing ring 11 is disposed 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] In order to prevent the wind turbine blades 4 from being displaced during the sea transportation and to prevent the wind turbine blades 4 from being damaged during the transportation, the present technical solution proposes a transport storage rack for wind turbine blades, such as Figure 1-4 As shown, it includes an upper base 2 and a lower base 1 for jointly enclosing a space for accommodating a wind turbine blade 4 , and a support rod 3 for connecting the upper base 2 and the lower base 1 .

[0040] Specifically, the front end of the upper base 2 and the front end of the lower base 1 of this solution are respectively provided with a limiting upper groove 201 and a limiting lower groove 101 for limiting the installation of the blade root 41, which is conducive to the limited 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, the limiting installation on the lower base 1 is achieved by setting a fixing ring 11 to prevent the wind turbine blade 4 from being displaced during transportation; further, since the fixing ring 11 is flexibly connected to the rear end of the lower base 1 in this solution, during transportation, if the transport storage rack encounters waves and other effects and causes shaking, the flexible connection method can prevent the blade tail 42 from directly colliding with the transport storage rack to a certain extent, reducing the risk of damage to the wind turbine blade 4.

[0041] It should be noted that the fixing ring 11 in this solution can be connected to the rear end of the lower base 1 by a flexible connector such as a chain or a steel rope, which is not limited here.

[0042] Further explanation is provided, and a reinforcing block 5 is included. The reinforcing block 5 is detachably mounted on the front ends 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 the present technical solution, a reinforcement block 5 is further provided 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] Further explanation, it also includes a fastener 6; a plurality of mounting through holes are evenly opened on the edge of the reinforcement block 5, and a plurality of mounting countersunk holes are correspondingly opened on the front end surfaces of the lower base 1 and the upper base 2. After the fastener 6 passes through the mounting through holes and the mounting countersunk holes in turn, the upper base 2 and the lower base 1 are connected.

[0045] As a preferred embodiment of the above-mentioned embodiment, the present solution realizes the connection between the upper base 2 and the lower base 1 by passing the fastener 6 through the mounting through hole and the mounting countersunk hole in sequence, so as to further enhance the connection strength between the upper base 2 and the lower base 1.

[0046] To further illustrate, a plurality of connecting screws 411 are protrudingly provided at the end of the blade root 41;

[0047] A plurality of escape holes 501 are evenly formed inside the reinforcement block 5 , and the escape holes 501 are used to escape the connecting screws 411 .

[0048] As another preferred embodiment of the above embodiment, in this solution, an avoidance through hole 501 matching with the connecting screw 411 is provided in the reinforcement block 5 to further ensure the stable installation of the wind turbine blade 4 in the transport storage rack.

[0049] It should be noted that a plurality of connecting screws 411 are generally protruding from the end of the blade root 41 to facilitate connection with the nacelle hub of the wind turbine generator set during installation.

[0050] Further explained, a plurality of hinge seats 7 are provided on both sides of the bottom of the upper base 2 along the left-right direction and on both sides of the top of the lower base 1 along the left-right direction, and the support rod 3 is hingedly connected 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 the present technical solution, the connection methods at both ends of the support rod 3 are hinged, so that there is a margin for relative rotation 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 transportation storage rack.

[0052] Further, the lower base 1 is provided with a plurality of placement seats 8 on both sides of the top along the left-right direction, and the top of the placement seat 8 is provided with a placement groove for accommodating the support rod 3;

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

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

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

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

[0057] Further, the bottom of the lower base 1 is inwardly recessed to form a positioning groove 102, and the top of the upper base 2 is protrudingly provided with a positioning beam 202, and 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. The transport fixtures are provided in a plurality of groups, and the plurality of groups of the transport fixtures are stacked and installed in a vertical direction through the positioning grooves 102 and the positioning beams 202 .

[0059] In order to facilitate the unified transportation of multiple wind turbine blades 4, the present solution also adds a structure for stacking and installing transport tools in the transport storage rack, such as Figure 5 As shown, the transport storage rack can be used to reduce the space occupied during transportation.

[0060] Further explanation, it also includes a locking pin (not shown);

[0061] The positioning groove 102 is symmetrically provided with locking holes 1021 on both sides along the left and right directions, and the positioning beam 202 is provided with a locking channel 2021 extending along the left and right directions, and the locking hole 1021 and the locking channel 2021 are both used to accommodate the locking pin; the locking pin installs the positioning beam 202 in the positioning groove 102 through the locking hole 1021 and the locking channel 2021.

[0062] Furthermore, in order to enhance the connection strength between two adjacent stacked transport toolings, the present solution further provides a locking pin to achieve locking between the two transport toolings.

[0063] To further illustrate, the locking holes 1021 are provided in multiple groups, and the multiple groups of locking holes 1021 are evenly distributed along the front-to-back direction of the positioning slot 102;

[0064] There are multiple locking channels 2021 , and the multiple locking channels 2021 are evenly distributed along the front-to-back direction of the positioning beam 202 .

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

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0067] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0068] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

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

[0070] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

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

[0072] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A wind turbine blade transport and storage rack, characterized in that: The transport storage rack comprises a lower base, an upper base and a support rod; the upper base is detachably mounted on the lower base, and the upper base and the lower base together form a storage space for accommodating wind turbine blades; the support rod is provided with a plurality of bars, the support rod is detachably connected between the upper base and the lower base, and the support rod is located on both sides of the transport storage rack along the left and right directions; The front end of the lower base is provided with a downwardly concave limiting lower groove, and the front end of the upper base is provided with an upwardly concave limiting upper groove, and the limiting lower groove and the limiting upper groove together form a receiving groove for receiving the blade root of the wind turbine blade; A fixing ring is arranged at the top of the rear end of the lower base, the fixing ring is used to accommodate the blade tail of the wind turbine blade, and the fixing ring is flexibly connected to the rear end of the lower base.

2. A wind turbine blade transport and storage rack according to claim 1, characterized in that: It also includes a reinforcement block, which is detachably mounted on the front ends of the lower base and the upper base, and is used to connect the upper base and the lower base.

3. A wind turbine blade transport and storage rack according to claim 2, characterized in that: It also includes fasteners; a plurality of mounting through holes are evenly opened on the edge of the reinforcement block, and a plurality of mounting countersunk holes are correspondingly opened on the front end surfaces of the lower base and the upper base. After the fasteners pass through the mounting through holes and the mounting countersunk holes in turn, the upper base and the lower base are connected.

4. A wind turbine blade transport and storage rack according to claim 2, characterized in that: A plurality of connecting screws are protrudingly provided at the end of the blade root; A plurality of avoidance through holes are evenly arranged inside the reinforcement block, and the avoidance through holes are used to avoid the connecting screws.

5. The wind turbine blade transport and storage rack according to claim 1, characterized in that: A plurality of hinge seats are arranged on both sides of the bottom of the upper base along the left-right direction and on both sides of the top of the lower base along the left-right direction, and the support rod is hinged obliquely between the hinge seats of the upper base and the hinge seats of the lower base.

6. A wind turbine blade transport and storage rack according to claim 1, characterized in that: The lower base is provided with a plurality of placement seats on both sides of the top along the left and right directions, and the top of the placement seat is provided with a placement groove for accommodating the support rod; The placement grooves extend along the front-to-back direction, and all the placement grooves located on the same side of the lower base are located on the same straight line.

7. A wind turbine blade transport and storage rack according to claim 1, characterized in that: The fixing ring is made of flexible material.

8. The wind turbine blade transport and storage rack according to claim 1, characterized in that: The bottom of the lower base is inwardly recessed to form a positioning groove, and the top of the upper base is protrudingly provided with a positioning beam, and the positioning groove is used to accommodate the positioning beam; The upper base and the lower base form a set of transport tools, and the transport tools are provided in a plurality of groups, and the plurality of groups of transport tools are stacked and installed in a vertical direction through the positioning grooves and the positioning beams.

9. A wind turbine blade transport and storage rack according to claim 8, characterized in that: Also included is a locking pin; The positioning groove is symmetrically provided with locking holes on both sides along the left and right directions, and the positioning beam is provided with a locking channel extending along the left and right directions, and both the locking hole and the locking channel are used to accommodate the locking pin; the locking pin installs the positioning beam in the positioning groove through the locking hole and the locking channel.

10. A wind turbine blade transport and storage rack according to claim 9, characterized in that: The locking holes are provided in multiple groups, and the multiple groups of locking holes are evenly distributed along the front-to-back direction of the positioning groove; There are multiple locking channels, and the multiple locking channels are evenly distributed along the front-to-back direction of the positioning beam.

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