Storage device for suppressing vortex-induced vibration

Abstract

The present application discloses a storage device for suppressing vortex-induced vibration, which includes an attitude adjustment structure, a driving component, a detector and a controller. The attitude adjustment structure includes a base and a support body. The support body is rotatably connected to the base and can rotate relative to the base with the axis as the rotation center. The support body has a clamping cavity penetrating along the axis direction, and the clamping cavity is used to accommodate the blade; the driving component is in transmission cooperation with the support body and drives the support body to rotate relative to the base; the detector is arranged on the attitude adjustment structure and is used to obtain the included angle Δθ between the blade and the wind direction; the controller is respectively communicatively connected to the driving component and the detector, and the controller is configured to control the driving component to drive the support body to rotate until the included angle Δθ is within the first preset threshold range when the included angle Δθ exceeds the first preset threshold range. The storage device for suppressing vortex-induced vibration can improve the vortex-induced vibration of the blade caused by the wind flow without damaging the structure of the blade itself.

Description

Technical Field

[0001] This application belongs to the technical field of blade protection, and particularly relates to a storage device for suppressing vortex-induced vibration. Background Art

[0002] With the transformation of the global energy structure, wind power, as a clean energy source, is becoming increasingly important. Blades are the core components for wind turbines to capture wind energy. After production, blades are generally stored in yards or at wind farm sites. Due to the complex wind conditions in yards or at wind farm sites, where wind speed and direction are difficult to predict, stacked blades are prone to vortex-induced vibration under wind conditions within a certain angle range, resulting in damage to the blade structure and thus affecting the safety of blade operation.

[0003] In related technologies, the air dynamic structure of the blade surface is mainly changed by adding devices or attachments to the blade surface, thereby improving the vortex-induced vibration caused by the flow of wind. However, the above methods have the risk of damaging the blade's own structure and are not applicable to the storage state of the blade. Summary of the Invention

[0004] This application provides a storage device for suppressing vortex-induced vibration, which can improve the problem of vortex-induced vibration caused by the flow of wind in the stored blades without damaging the blade's own structure.

[0005] In a first aspect, according to an embodiment of the present application, a storage device for suppressing vortex-induced vibration is proposed for blades. The storage device for suppressing vortex-induced vibration includes: an attitude adjustment structure, including a base and a support body. The support body is rotatably connected to the base and can rotate relative to the base along its circumferential direction. The support body has a clamping cavity that penetrates along a first direction, and the clamping cavity is used to accommodate the blade; a driving component, which is in transmission cooperation with the support body and drives the support body to rotate relative to the base; a detector, which is arranged on the attitude adjustment structure and is used to obtain the included angle Δθ between the blade and the wind direction; a controller, which is respectively communicatively connected to the driving component and the detector. The controller is configured to control the driving component to drive the support body to rotate until the included angle Δθ is within the first threshold range when the included angle Δθ exceeds the first threshold range.

[0006] According to an aspect of an embodiment of the present application, the detector is configured to be able to select a reference plane and obtain the angle value θ1 between the chord direction of the blade and the reference plane and the angle value θ2 between the wind direction and the reference plane, and the included angle Δθ is the absolute value of the difference between the angle value θ1 and the angle value θ2.

[0007] According to an aspect of an embodiment of the present application, the first threshold range is: 0° ≤ Δθ ≤ 10°.

[0008] According to one aspect of an embodiment of the present application, the number of posture adjustment structures is more than two and is distributed along a first direction, and at least one posture adjustment structure is connected to a drive assembly and a detector; or, the storage device includes a posture adjustment structure, the posture adjustment structure includes a base and a plurality of support bodies, and the plurality of support bodies are distributed in sequence along the first direction and are rotatably connected to the base respectively.

[0009] According to one aspect of an embodiment of the present application, the attitude adjustment structure includes a first adjustment structure and one or more second adjustment structures, or the attitude adjustment structure includes multiple second adjustment structures; the support body of the first adjustment structure is annular, and at least one of the two side surfaces opposite to each other in the first direction is provided with a connecting member, and the connecting member is used to connect to the root end face of the blade; the support body of the second adjustment structure includes a rotating part and a clamping part, the rotating part is rotatably connected to the base, the clamping part is connected to the rotating part, and is used to enclose and form a clamping cavity.

[0010] According to one aspect of the embodiments of the present application, the connecting member includes a connecting hole arranged through along a first direction, and / or the connecting member includes a threaded fastener extending along the first direction.

[0011] According to one aspect of an embodiment of the present application, the rotating portion extends along a circular trajectory and is provided with an installation opening in its own circumference, and the installation opening is communicated with the clamping cavity; the clamping portion extends radially along the rotating portion, and a side surface of the clamping portion facing away from the rotating portion matches the outer surface shape of the blade.

[0012] According to one aspect of the embodiment of the present application, the support body of the second adjustment structure includes a plurality of clamping portions, the plurality of clamping portions are spaced apart in the circumferential direction of the rotating portion, and the clamping portions are staggered with the mounting openings.

[0013] According to one aspect of the embodiment of the present application, the driving assembly includes a driving motor and a driving gear, and a rotating tooth is provided on the outer peripheral surface of the support body facing away from the clamping cavity, and the driving gear is meshed with the rotating tooth.

[0014] According to one aspect of an embodiment of the present application, the posture adjustment structure is provided with an angle mark, and the angle mark is used to indicate the rotation angle of the support body.

[0015] According to one aspect of an embodiment of the present application, the angle marking includes a scale mark arranged on the support body and a pointer arranged on the base, and at least one of the two side surfaces of the support body opposite to each other in the first direction is provided with scale marks, and the scale marks are distributed along the circumference of the clamping cavity.

[0016] According to one aspect of an embodiment of the present application, the detector includes a gyroscope and a wind direction sensor, the gyroscope is arranged on a support body, and the wind direction sensor is arranged on a base.

[0017] The present application has at least the following beneficial effects:

[0018] The storage device for suppressing vortex-induced vibration provided by the present application is used for blades. The storage device for suppressing vortex-induced vibration includes an attitude adjustment structure, a driving component, a detector, and a controller. The detector can detect the angle between the real-time wind direction and the blade, and when this angle is large and exceeds the preset value range, it drives the blade to rotate through the driving component and the attitude adjustment structure until this angle is within the preset range. Thereby, the possibility that the blade enters the vortex-induced vibration state due to the difference between the wind direction and its own placement pose during storage can be reduced, and further the possibility that the blade is damaged during storage can be reduced. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of a storage device for suppressing vortex-induced vibration provided by an embodiment of the present application;

[0021] Figure 2 It is a schematic structural diagram of a first adjustment structure provided by an embodiment of the present application;

[0022] Figure 3 It is a schematic structural diagram of a second adjustment structure provided by an embodiment of the present application.

[0023] The descriptions of the reference numerals are as follows:

[0024] 100 - storage device; 200 - blade;

[0025] 10 - attitude adjustment structure; 20 - driving component; 30 - detector; 40 - controller;

[0026] 11 - base; 12 - support; 13 - first adjustment structure; 14 - second adjustment structure;

[0027] 121 - clamping cavity; 141 - rotating part; 142 - clamping part;

[0028] 1411 - installation opening;

[0029] X - first direction. Detailed Embodiments

[0030] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, many specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present application by showing examples of the present application. In the drawings and the following description, at least some of the well-known structures and technologies are not shown in order to avoid unnecessarily obscuring the present application; and, for clarity, the dimensions of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0031] The orientation terms appearing in the following description are all the directions shown in the drawings, and do not limit the specific structures in the molding die and molding method of the present application. In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the meaning of "a plurality" is more than two, and the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0032] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] With the development of wind power generation technology, the single-unit capacity of wind turbines has been continuously increasing, and the sizes of various components in the unit have also increased accordingly. Especially for the ultra-large units applied in environments such as deserts, gobi, and deep seas and far seas, the length dimensions of their blades have exceeded the hundred-meter level. Before being installed on the hub, these blades usually need to be stored in a storage yard or at the wind farm site and placed at this location for a period of time.

[0034] On this basis, the applicant found that the wind conditions in the storage yard and the wind turbine installation site are usually relatively complex, and their wind speeds and wind directions are difficult to predict. The stacked blades are usually set outdoors, and these blades are very likely to have the problem of vortex-induced vibration under the wind conditions in certain specific angle ranges, which will then cause structural damage to the blades and reduce the reliability.

[0035] In the prior art, the problem of vortex-induced vibration is usually improved by adding aerodynamic accessories at positions such as the trailing edge of the blade. However, setting aerodynamic accessories usually requires damaging the main body structure of the blade, affecting the structural safety of the blade, and the universality of the solution is poor. The same aerodynamic accessories cannot be adapted to blades with different blade shapes, and most aerodynamic accessories are not suitable for blades in the flat storage state either.

[0036] To solve the above problems, an embodiment of the present application proposes a storage device for suppressing vortex-induced vibration, which can reduce the possibility of vortex-induced vibration occurring during the storage of the blade and improve the reliability of the blade.

[0037] It can be understood that the following embodiments of the present application only take the storage device provided by the present application applied to the blade of a wind turbine as an example for illustration. However, the application of the storage device provided by the embodiments of the present application is not limited to the following embodiments, and it can also be used for other starting structural components that need to be stored in a complex wind condition environment and protect them.

[0038] For a better understanding of the present application, the following is combined with Figures 1 to 3 for a detailed description.

[0039] Please refer to Figures 1 to 3 together, Figure 1 which is a schematic structural diagram of a storage device for suppressing vortex-induced vibration provided by an embodiment of the present application, Figure 2 which is a schematic structural diagram of a first adjustment structure provided by an embodiment of the present application, Figure 3 which is a schematic structural diagram of a second adjustment structure provided by an embodiment of the present application.

[0040] In a first aspect, according to an embodiment of the present application, a storage device 100 for suppressing vortex-induced vibration is proposed, which is used for a blade 200. The storage device 100 for suppressing vortex-induced vibration includes: an attitude adjustment structure 10, including a base 11 and a support body 12. The support body 12 is rotatably connected to the base 11 and can rotate relative to the base 11 along its circumferential direction. The support body 12 has a clamping cavity 121 penetrating along a first direction X, and the clamping cavity 121 is used to accommodate the blade 200; a driving assembly 20, the driving assembly 20 is in transmission cooperation with the support body 12 and drives the support body 12 to rotate relative to the base 11; a detector 30, arranged on the attitude adjustment structure 10, for obtaining the included angle Δθ between the blade 200 and the wind direction; a controller 40, respectively communicatively connected to the driving assembly 20 and the detector 30. The controller 40 is configured to control the driving assembly 20 to drive the support body 12 to rotate until the included angle Δθ is within a first threshold range when the included angle Δθ exceeds the first threshold range.

[0041] An embodiment of the present application provides a storage device 100 for a blade 200 of a wind turbine generator, which can suppress the vortex-induced vibration of the blade 200. The storage device 100 includes an attitude adjustment structure 10, a driving component 20, a detector 30, and a controller 40. The attitude adjustment structure 10 is used to clamp and fix the blade 200 and drive the blade 200 to rotate therewith. The driving component 20 is used to drive the attitude adjustment structure 10 and the clamped blade 200 to rotate. The detector 30 is used to obtain the real-time wind direction and the attitude of the blade 200. The controller 40 is used to control the driving component 20 and the detector 30.

[0042] Specifically, the attitude adjustment structure 10 is used to support the blade 200 and adjust the attitude of the blade 200. The attitude adjustment structure 10 includes a base 11 and a support 12. The base 11 is used to provide support and fixation for the support 12. The support 12 is rotatably connected to the base 11 and can rotate relative to the base 11 with the axis of the blade 200 as the rotation axis, so as to adjust the attitude of the blade 200.

[0043] Optionally, the support 12 has a clamping cavity 121 penetrating along the first direction X, and the first direction X can be parallel to the axis of the blade 200. The shape of the support cavity can include a circular cavity, an elliptical cavity, a special-shaped cavity matching the outer peripheral surface of the blade 200, etc. The blade 200 can pass through the clamping cavity 121 and have a stable relative position with the support 12 during rotation.

[0044] The driving component 20 is used to drive the support 12 to rotate relative to the base 11 with the aforementioned axis as the rotation axis. The driving component 20 can be arranged adjacent to / connected to the attitude adjustment structure 10. Alternatively, a cavity can be provided in the base 11 of the attitude adjustment structure 10, and the driving component 20 can be arranged in the cavity to provide protection for the driving component 20, improve reliability and extend the service life. The driving component 20 can be optionally a manually driven structure, such as a crank, etc. Alternatively, the driving component 20 can be optionally a structure that does not require manual driving, such as an electric motor, etc.

[0045] The detector 30 is used to detect the included angle Δθ between the wind direction and the blade 200. This included angle can refer to the included angle between the wind direction and the chord direction of the blade 200. Exemplarily, a plane is provided in the blade 200, and this plane is parallel to both the chord direction and the length direction of the blade 200. Then the included angle Δθ can be the included angle between the wind direction and this plane.

[0046] The controller 40 can be respectively communicatively connected to the detector 30 and the driving component 20, and is used to receive the data signal detected by the detector 30 and / or output a control signal for controlling its operation to the driving component 20. Here, the communication connection includes directly connecting and transmitting signals through a signal line, and information interaction through a signal transceiver module.

[0047] Thus, the storage device 100 can detect the included angle between the real-time wind direction and the blade 200 through the detector 30, denote this included angle as Δθ, and set a first threshold range according to the structural strength of the blade 200, etc. The controller 40 can compare Δθ with the first threshold range, which can be implemented by a logic circuit such as a comparator, and determine whether Δθ is within this range. If Δθ exceeds this range, it is determined that the included angle between the wind direction and the blade 200 is too large and vortex-induced vibration is likely to occur. At this time, the control driving assembly 20 drives the support body 12 to act, so as to rotate the blade 200 to the state facing the wind, that is, rotate until Δθ is within the first threshold range, preferably rotate until Δθ approaches 0°. Thus, the possibility of the blade 200 entering the vortex-induced vibration state can be reduced, and the possibility of the blade 200 being damaged during storage can be effectively reduced. Moreover, through the cooperation of the detector 30, the controller 40, and the driving assembly 20, automatic adjustment can be realized, the sensitivity and applicability of the storage device 100 can be improved, and the labor cost can be reduced.

[0048] In some alternative embodiments, the detector 30 is configured to be able to select a reference plane, and obtain the angular value θ1 between the chord direction of the blade 200 and the reference plane and the angular value θ2 between the wind direction and the reference plane, and the included angle Δθ is the absolute value of the difference between the angular value θ1 and the angular value θ2.

[0049] The detector 30 in the embodiment of the present application is used to obtain the included angle between the wind direction and the blade 200. Specifically, a reference plane can be selected first. For the convenience of calculation, this reference plane can be selected as the horizontal plane. At the same time, the detector 30 can include a first detection unit and a second detection unit, where the first detection unit is used to obtain the included angle θ1 between the chord direction of the blade 200 and the reference plane, and the second detection unit is used to obtain the included angle θ2 between the wind direction and the reference plane.

[0050] On this basis, the controller 40 can obtain the above two included angles and calculate, and the absolute value of the difference between the two is Δθ. Exemplarily, when the blade 200 is placed on the storage device 100, the chord direction of the blade 200 can be placed along the horizontal direction first, and the horizontal plane is selected as the reference plane. At this time, θ1 is 0°. Subsequently, the blade 200 can be rotated according to the measured angular value θ2 to make the angular value θ1 close to the angular value θ2.

[0051] In some alternative embodiments, the first threshold range is: 0°≤Δθ≤10°.

[0052] Optionally, the first threshold range for comparison with Δθ can be between 0° and 10°, and can be optionally any value between 0° and 10°, including the two end values of 0° and 10°. When Δθ is within this range, the angle of attack of the airflow on the blade 200 is small enough to reduce the probability of vortex-induced vibration of the blade 200 caused by the wind flow, and effectively reduce the possibility of damage to the blade 200 due to vibration during storage.

[0053] In an embodiment where the detector 30 can be used to detect the angle value θ1 between the chord direction of the blade 200 and the reference plane and the angle value θ2 between the wind direction and the reference plane, the absolute value of the difference between the angle value θ1 and the angle value θ2 should correspondingly be between 0° and 10°, and the relative magnitudes of θ1 and θ2 are determined by the specific pose of the blade 200 and the real-time wind direction.

[0054] In some alternative embodiments, the number of the attitude adjustment structures 10 is more than two and is distributed along the first direction X, and at least one attitude adjustment structure 10 is connected with a driving component 20 and a detector 30; alternatively, the storage device 100 includes one attitude adjustment structure 10, and the attitude adjustment structure 10 includes a base 11 and a plurality of support bodies 12, and the plurality of support bodies 12 are sequentially distributed along the first direction X and are respectively rotatably connected to the base 11.

[0055] In the embodiments of the present application, the number of the attitude adjustment structures 10 can be set to two, three or more, and the plurality of attitude adjustment structures 10 are sequentially and spaced apart along the first direction X. Optionally, the number of the attitude adjustment structures 10 can be set to two to reduce the cost of the storage device 100 on the basis of stable support and rotation.

[0056] In the embodiments provided with a plurality of attitude adjustment structures 10, at least one attitude adjustment structure 10 is connected with a driving component 20 and a detector 30, and the number and installation positions of the driving component 20 and the detector 30 can be the same or different.

[0057] Exemplarily, a driving component 20 can be provided at each attitude adjustment structure 10, and each driving component 20 can be used to drive the support body 12 to rotate synchronously to avoid torsional damage to the blade 200; or, a driving component 20 can be provided at some attitude adjustment structures 10, optionally at the attitude adjustment structure 10 corresponding to the position where the cross-sectional area of the blade 200 is larger, and the other attitude adjustment structures 10 without the driving component 20 are used to provide the blade 200 with rotational freedom.

[0058] Similarly, the detector 30 can be provided in some of the attitude adjustment structures 10. Alternatively, in order to improve the detection accuracy, the detector 30 can be provided in multiple attitude adjustment structures 10, and the required angle data can be comprehensively calculated based on the data collected by each detector 30.

[0059] In an embodiment with one attitude adjustment structure 10, it can include a base 11 extending along the first direction X with a longer dimension, and at the same time include a plurality of supports 12 rotatably connected to the base 11. In this embodiment, the same base 11 corresponds to a plurality of supports 12, and these supports 12 can be driven by the same drive assembly 20. Alternatively, the base 11 can be correspondingly provided with a plurality of drive assemblies 20 at the same time. Similarly, the detector 30 can be provided on the base 11 and each support 12 respectively, or the detector 30 can be provided on the base 11 and some of the supports 12.

[0060] By setting the number of attitude adjustment structures 10 to more than two and distributing the number of more than two attitude adjustment structures 10 along the first direction X, and enabling the more than two attitude adjustment structures 10 to cooperate together to adjust the attitude of the blade 200, the overall size and weight of the attitude adjustment structure 10 can be reduced, making the storage device 100 easy to transport and move. At the same time, the stability during the rotation of the blade 200 can be improved. In addition, the size of the drive assembly 20 can also be reduced, facilitating the drive assembly 20 to drive the support 12 to rotate relative to the base 11 with the axis of the blade 200 as the rotation axis.

[0061] In some alternative embodiments, the attitude adjustment structure 10 includes a first adjustment structure 13 and more than one second adjustment structure 14, or the attitude adjustment structure 10 includes a plurality of second adjustment structures 14; the support 12 of the first adjustment structure 13 is annular, and at least one of the opposite two side surfaces in the first direction X is provided with a connecting member for connecting to the root end face of the blade 200; the support 12 of the second adjustment structure 14 includes a rotating part 141 and a clamping part 142, the rotating part 141 is rotatably connected to the base 11, and the clamping part 142 is connected to the rotating part 141 and is used for enclosing to form a clamping cavity 121.

[0062] In an embodiment with a plurality of attitude adjustment structures 10, these attitude adjustment structures 10 can include two types, namely the first adjustment structure 13 and the second adjustment structure 14, and the two adjustment structures can be respectively used to connect to different positions of the blade 200. A plurality of attitude adjustment structures 10 can all be set as the second adjustment structure 14, or a plurality of attitude adjustment structures 10 can include a first adjustment structure 13 and more than one second adjustment structure 14.

[0063] Specifically, the first adjustment structure 13 can be used to connect to the end face on the root side of the blade 200. The support body 12 of the first adjustment structure 13 can be annularly arranged, and is preferably circularly arranged for easy rotation. This annular structure has two surfaces oppositely arranged in the first direction X, and these two surfaces are preferably parallel to each other, and at least one of these two surfaces is provided with a connecting member. When connecting the blade 200 to the first adjustment structure 13, its support body 12 can be arranged on one side of the end face of the blade root of the blade 200 in the first direction X, and the side with the connecting member is oriented towards the blade 200, and is detachably connected to the blade 200 through the connecting member.

[0064] The second adjustment structure 14 can be used to connect to other areas of the blade 200 except the end face, and is preferably arranged around the blade 200 and clamped. The support body 12 of the second adjustment structure 14 includes a rotating part 141 and a clamping part 142 connected to the rotating part 141. The rotating part 141 can extend along a circular trajectory similar to the support body 12 of the first adjustment structure 13, and is preferably a closed ring or an opening with a certain width. The rotating part 141 is rotatably connected to the base 11 of the second adjustment structure 14. The clamping part 142 is arranged inside the rotating part 141 and is used to form a clamping cavity 121 to clamp and fix the blade 200.

[0065] In an embodiment where multiple attitude adjustment structures 10 are all the second adjustment structures 14, multiple second adjustment structures 14 can be respectively fixed at different positions in the length direction of the blade 200, and each second adjustment structure 14 can respectively form a clamping cavity 121 with the same cross-sectional shape as the blade 200 at the clamping position. In an embodiment where multiple attitude adjustment structures 10 include the first adjustment structure 13 and the second adjustment structure 14, the first adjustment structure 13 is arranged at the root of the blade 200, and the other second adjustment structures 14 can be arranged in sequence along the length direction of the blade 200.

[0066] In some alternative embodiments, the connecting member includes a connection hole penetrating along the first direction X, and / or the connecting member includes a threaded fastener extending along the first direction X.

[0067] In an embodiment provided with the first adjustment structure 13, a connecting member for connecting to the blade 200 is provided on its support body 12, and the first adjustment structure 13 can be arranged at the root position of the blade 200 and is preferably used to connect to the end face on one side of the root of the blade 200.

[0068] Specifically, one end face of the blade root side of the blade 200 is usually an annular face, and a plurality of threaded fixing holes are arranged at intervals along its circumferential direction for connecting the blade 200 to the hub. When installing the blade 200 onto the storage device 100, it is also possible to connect through these fixing holes. Thus, the first adjusting structure 13 can be arranged close to the end face of the blade root side of the blade 200 and connected to the aforementioned fixing holes.

[0069] Specifically, the connecting member can be selected as a connecting hole and / or a fastener. In the embodiment where it is set as a connecting hole, the support body 12 of the first adjusting structure 13 can be set as a circular ring, and a plurality of connecting holes are arranged along its circumferential direction. Optionally, the connecting holes can correspond one-to-one with the fixing holes on the blade root to facilitate connection through fixing bolts or fixing pins, etc. In the embodiment where the connecting member is set as a fastener, a threaded fastener can be connected to the aforementioned fixing hole so that it can be threadedly connected to the blade 200. The fastener can also be selected to be arranged corresponding one-to-one with the fixing hole. In the embodiment where both a connecting hole and a fastener are provided, the fastener can pass through the connecting hole and the fixing hole on the blade 200 simultaneously.

[0070] By setting the connecting member as a connecting hole and / or a fastener, the connection between the blade 200 and the storage device 100 can be made firm, and at the same time, the blade 200 is convenient for installation and disassembly.

[0071] In some alternative embodiments, the rotating part 141 extends along a circular arc track, and an installation opening 1411 is arranged on its circumferential direction. The installation opening 1411 communicates with the clamping cavity 121; the clamping part 142 extends along the radial direction of the rotating part 141, and the surface of the clamping part 142 facing away from the rotating part 141 matches the outer surface shape of the blade 200.

[0072] In the second adjusting structure 14, the support body 12 includes a rotating part 141 and a clamping part 142. The rotating part 141 among them can extend along a circular arc track, but does not form a closed ring. Instead, an installation opening 1411 for the blade 200 to enter and exit is arranged on its circumferential direction. The width of the installation opening 1411 can be selected to be greater than the thickness of the blade 200 at the corresponding position. By setting the installation opening 1411, the process of inserting the support body 12 from the blade tip side of the blade 200 can be omitted, and it is not necessary to move the base 11 and the support body 12. Thus, the convenience of use of the storage device 100 can be improved.

[0073] The clamping portion 142 is arranged on the inner side of the rotating portion 141, that is, on the side facing the clamping cavity 121, and is used to form the clamping cavity 121. The clamping portion 142 can extend along the radial direction of the rotating portion 141 to abut against the blade 200, and is used to fix the relative position between the blade 200 and the support body 12. The clamping portion 142 is used to form a side surface of the accommodating cavity, that is, the side surface away from the rotating portion 141, and can have a structural shape that matches the shape of the blade 200, so as to clamp the blade 200, thereby further stabilizing the relative position between the blade 200 and the posture adjustment structure 10.

[0074] In some optional embodiments, the support body 12 of the second adjustment structure 14 includes a plurality of clamping portions 142 , which are spaced apart in the circumferential direction of the rotating portion 141 , and the clamping portions 142 are staggered with the mounting openings 1411 .

[0075] On the basis of the radial extension of the clamping portion 142 along the rotating portion 141, the clamping portion 142 can be a columnar structure, and a plurality of clamping portions 142 can be arranged in the same second adjustment structure 14. The connection points between these clamping portions 142 and the rotating portion 141 are distributed in sequence along the circumference of the rotating portion 141, so as to clamp and fix the blade 200 from a plurality of different directions, thereby improving the stability of the support.

[0076] It is understandable that when multiple posture adjustment structures 10 are set to support the blade 200, the height, shape and size of the clamping cavity 121 in each posture adjustment structure 10 can be adjusted accordingly according to the relative position of the corresponding cross-section of the blade 200 itself, so that the clamping of the blade 200 is stable and reliable.

[0077] Furthermore, in an embodiment in which the rotating portion 141 is provided with a mounting opening 1411, the plurality of clamping portions 142 may be staggered with respect to the mounting opening 1411. The staggered arrangement herein refers to the staggered arrangement of the clamping portions 142 and the mounting opening 1411 itself, and at the same time, the staggered arrangement of the connecting passage between the mounting opening 1411 and the clamping cavity 121, so that the blade 200 can enter the clamping cavity 121 with the mounting opening 1411, and reduce the possibility of interference with the clamping portions 142 during the installation entry process.

[0078] In some optional embodiments, the driving assembly 20 includes a driving motor and a driving gear, and a rotating tooth is provided on the outer peripheral surface of the support body 12 facing away from the clamping cavity 121, and the driving gear is meshed with the rotating tooth.

[0079] Exemplarily, the driving assembly 20 may include a driving motor and a driving gear. The driving motor is used to output torque, and the driving gear is connected to the output end of the driving motor. Correspondingly, a rotating tooth may be provided on the outer peripheral surface of the support member, and a part of the rotating teeth may be engaged with the driving gear so that the driving motor can drive the support body 12 to rotate.

[0080] Optionally, the driving motor may be a stepper motor. Through the combination of the stepper motor and gear transmission, the rotation angle of the support body 12 can be accurately controlled. At the same time, in an embodiment where the storage device 100 includes a plurality of support bodies 12, the plurality of support bodies 12 may be respectively driven by a plurality of driving motors, or the plurality of support bodies 12 may be driven by the same driving motor. For example, it may be selected to be in the form of a transmission shaft, a transmission belt, etc., so that the driving motor can drive a plurality of support bodies 12 at the same time.

[0081] In some alternative embodiments, the attitude adjustment structure 10 is provided with an angle identifier for indicating the rotation angle of the support body 12.

[0082] Optionally, the attitude adjustment structure 10 may also be provided with an angle identifier for intuitively indicating the angle at which the support body 12 is located. The angle identifier may be, for example, an angle scale provided on the surface of the support body 12, a display screen provided on the support body 12 / base 11, or a mechanical indicator, etc. By providing an angle identifier on the attitude adjustment structure 10, the rotation angle and the current pose of the blade 200 can be shown more intuitively and conveniently, so as to facilitate manual further adjustment or other operations on the blade 200.

[0083] Optionally, the angle identifier may show a plurality of data, such as: one or more of the real-time included angle between the blade 200 and the wind direction, the angular position where the blade 200 is located, the wind direction, the included angle between the chord direction of the blade 200 and the horizontal plane, and other parameters.

[0084] In some alternative embodiments, the angle identifier includes scale marks provided on the support body 12 and a pointer provided on the base 11. At least one of the opposite two side surfaces of the support body 12 in the first direction X is provided with scale marks, and the scale marks are distributed along the circumference of the clamping cavity 121.

[0085] Optionally, the angle identifier may adopt a mechanical structure, including scale marks and a pointer for indicating on the scale marks. This structure is simple, easy to set, requires little space and has low cost, and can intuitively show the position to which the support body 12 and the blade 200 rotate.

[0086] Specifically, for the convenience of rotation, the support body 12 can extend at least partially along an annular trajectory. Scale marks can be provided in the area where this part extends along the annular trajectory. The scale marks correspond to the rotation angle of the support body 12, and numerical scales from 0° to 360° are set. The scale marks can be provided on at least one of the two opposite side surfaces of the support body 12 in the first direction X to facilitate viewing by personnel.

[0087] Correspondingly, the base 11 can be provided with a pointer. The pointer can be a needle-like structure connected to the base 11, or the pointer can be a pointer mark provided on the surface of the base 11. The pointer is arranged close to the scale marks and can correspond to them, and is used to indicate the current position angle of the support body 12 on the scale marks.

[0088] In some alternative embodiments, the detector 30 includes a gyroscope and a wind direction sensor. The gyroscope is arranged on the support body 12, and the wind direction sensor is arranged on the base 11.

[0089] The detector 30 is used to obtain the included angle between the wind direction and the blade 200. On this basis, the detector 30 can include at least two sensors. One of them is a gyroscope arranged on the blade 200 and / or the support body 12, which is used to detect the angles of the support body 12 and the blade 200, and can optionally detect the included angle θ1 between the chord direction of the blade 200 and the horizontal plane.

[0090] The other of the two sensors is a wind direction sensor, which can be optionally one or more of sensor types such as a vane-type wind direction sensor, a photoelectric wind direction sensor, a magnetoresistive wind direction sensor, etc. The wind direction sensor can be arranged on the base 11 or at other positions except the blade 200 and the support body 12, and can be optionally arranged close to the blade 200 to more accurately detect the wind direction at the blade 200 and avoid interference caused by rotation.

[0091] As described above, this is only the specific implementation manner of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein. It should be understood that the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present application.

Claims

1. A storage device for suppressing vortex-induced vibration, used for blades, characterized in that: The storage device for suppressing vortex-induced vibration comprises: The posture adjustment structure comprises a base and a support body, wherein the support body is rotatably connected to the base and can rotate relative to the base along its own circumferential direction, and the support body has a clamping cavity which is arranged through along a first direction, and the clamping cavity is used to accommodate the blade; A driving assembly, the driving assembly is in transmission cooperation with the supporting body and drives the supporting body to rotate relative to the base; A detector, arranged on the attitude adjustment structure, for obtaining an angle Δθ between the blade and the wind direction; a controller, which is in communication with the driving assembly and the detector, respectively, and is configured to control the driving assembly to drive the support body to rotate when the angle Δθ exceeds a first threshold range, until the angle Δθ is within the first threshold range; The number of the posture adjustment structures is more than two and they are distributed along the first direction, and at least one of the posture adjustment structures is connected to the driving component and the detector; The posture adjustment structure includes a first adjustment structure and more than one second adjustment structure, or the posture adjustment structure includes a plurality of the second adjustment structures. The support body of the first adjustment structure is annular, and at least one of the two side surfaces opposite to each other in the first direction is provided with a connecting piece, and the connecting piece is used to be connected to the root end face of the blade. The support body of the second adjustment structure includes a rotating part and a clamping part, and the rotating part is rotatably connected to the base. The clamping part is connected to the rotating part and is used to enclose and form the clamping cavity.

2. The storage device for suppressing vortex-induced vibration according to claim 1, characterized in that: The detector is configured to select a reference surface and obtain an angle value θ1 between the chord direction of the blade and the reference surface and an angle value θ2 between the wind direction and the reference surface, wherein the angle Δθ is the absolute value of the difference between the angle value θ1 and the angle value θ2.

3. The storage device for suppressing vortex-induced vibration according to claim 1, characterized in that: The first threshold range is: 0° ≤ Δθ ≤ 10°.

4. The storage device for suppressing vortex-induced vibration according to claim 1, characterized in that: The connecting member includes a connecting hole extending through the first direction, and / or the connecting member includes a threaded fastener extending along the first direction.

5. The storage device for suppressing vortex-induced vibration according to claim 1, characterized in that: The rotating part extends along a circular track and is provided with a mounting opening in its circumference, wherein the mounting opening is in communication with the clamping cavity; The clamping portion extends in a radial direction of the rotating portion, and a surface of a side of the clamping portion facing away from the rotating portion matches a shape of an outer surface of the blade.

6. The storage device for suppressing vortex-induced vibration according to claim 5, characterized in that: The support body of the second adjustment structure includes a plurality of the clamping parts, the plurality of the clamping parts are arranged at intervals in the circumferential direction of the rotating part, and the clamping parts are staggered with the mounting openings.

7. The storage device for suppressing vortex-induced vibration according to claim 1, characterized in that: The driving assembly comprises a driving motor and a driving gear. The outer peripheral surface of the support body on one side away from the clamping cavity is provided with rotating teeth, and the driving gear is meshed with the rotating teeth.

8. The storage device for suppressing vortex-induced vibration according to claim 1, characterized in that: The posture adjustment structure is provided with an angle mark, and the angle mark is used to show the rotation angle of the support body.

9. The storage device for suppressing vortex-induced vibration according to claim 8, characterized in that: The angle marking includes a scale mark arranged on the support body and a pointer arranged on the base, and the scale mark is arranged on at least one of the two opposite surfaces of the support body in the first direction, and the scale mark is distributed along the circumference of the clamping cavity.

10. The storage device for suppressing vortex-induced vibration according to claim 1, characterized in that: The detector includes a gyroscope and a wind direction sensor. The gyroscope is arranged on the support body, and the wind direction sensor is arranged on the base.

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