Storage device for suppressing vortex-induced vibration

Abstract

The invention discloses a storage device capable of restraining vortex-induced vibration. The storage device comprises a posture adjusting structure, a driving assembly, a detector and a controller. The posture adjusting structure comprises a base and a supporting body, the supporting body is rotationally connected with the base and can rotate relative to the base with the axis as the rotating center, the supporting body is provided with a clamping cavity which is formed in the axis direction in a penetrating mode, and the clamping cavity is used for containing the blade; the driving assembly is in transmission fit with the supporting body and drives the supporting body to rotate relative to the base. The detector is arranged on the posture adjusting structure and used for obtaining the included angle delta theta between the blade and the wind direction. The controller is in communication connection with the driving assembly and the detector, and the controller is configured to control the driving assembly to drive the supporting body to rotate until the included angle delta theta is within a first preset threshold value range when the included angle delta theta exceeds the first preset threshold value range. The storage device for suppressing vortex-induced vibration can improve vortex-induced vibration, caused by flowing of wind, of the blade on the basis that the structure of the blade is not damaged.

Description

Technical Field

[0001] The present application belongs to the technical field of blade protection, and in particular 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 of wind turbines to capture wind energy. After production, blades are generally stored in storage yards or wind farms. Due to the complex wind conditions at storage yards or wind farms, wind speed and wind direction are difficult to predict. The stacked blades are prone to vortex-induced vibration under wind conditions within a certain angle range, resulting in damage to the blade structure, thereby affecting the safety of blade operation.

[0003] In the related art, the aerodynamic structure of the blade surface is changed mainly by adding devices or attachments to the blade surface, thereby improving the vortex-induced vibration of the blade caused by wind flow. However, the above method has the risk of damaging the blade structure itself and is not suitable for the storage state of the blade. Summary of the invention

[0004] The present application provides a storage device for suppressing vortex-induced vibration, which improves the vortex-induced vibration problem of blades in a stored state caused by wind flow without destroying the structure of the blades themselves.

[0005] In the first aspect, according to an embodiment of the present application, a storage device for suppressing vortex-induced vibration is proposed, which is used 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 own circumference, the support body has a clamping cavity arranged through along a first direction, and the clamping cavity is used to accommodate the blade; a drive component, the drive component is in transmission cooperation with the support body and drives the support body to rotate relative to the base; a detector is arranged in the attitude adjustment structure, and is used to obtain the angle Δθ between the blade and the wind direction; a controller, which is communicatively connected to the drive component and the detector respectively, and the controller is configured to control the drive component 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.

[0006] According to one aspect of an embodiment of the present application, the detector is configured 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 angle Δθ is the absolute value of the difference between the angle value θ1 and the angle value θ2.

[0007] According to one aspect of the 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] This application has at least the following beneficial effects:

[0018] The storage device for suppressing vortex-induced vibration provided in the present application is used for blades. The storage device for suppressing vortex-induced vibration includes an attitude adjustment structure, a drive component, a detector and a controller, wherein the detector can detect the angle between the real-time wind direction and the blade, and when the angle is large and exceeds a preset numerical range, the drive component and the attitude adjustment structure drive the blade to rotate until the angle is within a preset range, thereby reducing the possibility of the blade entering a vortex-induced vibration state due to the difference between the wind direction and its own placement during storage, thereby reducing the possibility of the blade being damaged during storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

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

[0021] Figure 2 A schematic diagram of the structure of a first adjustment structure provided in one embodiment of the present application;

[0022] Figure 3 A schematic structural diagram of a second adjustment structure provided for one embodiment of the present application.

[0023] The following are the descriptions of the reference numerals:

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

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

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

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

[0028] 1411-installation opening;

[0029] X - first direction. DETAILED DESCRIPTION

[0030] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0031] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structures in the molding mold and molding method of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the meaning of "multiple" 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 directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 on this application. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the 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 ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] With the development of wind power generation technology, the capacity of wind turbines has been increasing, and the size of each component in the unit has also increased. Especially for the ultra-large units used in deserts and deep sea environments, the length of their blades has exceeded 100 meters. Before being installed on the hub, these blades usually need to be stored in a yard or wind farm site and left there for a period of time.

[0034] On this basis, the applicant found that the wind conditions in storage yards and wind turbine installation sites are usually more complicated, and the wind speed and direction are difficult to predict. The stacked blades are usually set in the open air. These blades are prone to vortex-induced vibration problems under wind conditions within a certain specific angle range, which in turn causes structural damage to the blades and reduces reliability.

[0035] In the prior art, the vortex-induced vibration problem is usually improved by adding pneumatic accessories at the trailing edge of the blade and other positions. However, the installation of pneumatic accessories usually requires the destruction of the main structure of the blade, affecting the structural safety of the blade, and the versatility of the solution is poor. The same pneumatic accessories cannot be adapted to blades of different leaf shapes. At the same time, most pneumatic accessories are not suitable for blades in a flat storage state.

[0036] In order to solve the above-mentioned problem, 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 in the blades during storage and improve the reliability of the blades.

[0037] It can be understood that the following embodiments of the present application only illustrate the application of the storage device provided by the present application to the blades of a wind turbine generator set as an example, but the application of the storage device provided by the embodiments of the present application is not limited to the following embodiments, and can also be used for other starting structural parts that need to be stored in complex wind conditions and protect them.

[0038] In order to better understand this application, Figures 1 to 3 Describe in detail.

[0039] Please also read Figures 1 to 3 , Figure 1 A schematic diagram of the structure of a storage device for suppressing vortex-induced vibration provided by an embodiment of the present application, Figure 2 A schematic diagram of a first adjustment structure provided in one embodiment of the present application is shown in FIG. Figure 3 A schematic structural diagram of a second adjustment structure provided for one embodiment of the present application.

[0040] In the 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 blades 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 own circumference, the support body 12 has a clamping cavity 121 arranged through along a first direction X, and the clamping cavity 121 is used to accommodate the blade 200; a drive component 20, the drive component 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, which is arranged in the attitude adjustment structure 10, and is used to obtain the angle Δθ between the blade 200 and the wind direction; a controller 40, which is communicatively connected to the drive component 20 and the detector 30 respectively, and the controller 40 is configured to control the drive component 20 to drive the support body 12 to rotate when the angle Δθ exceeds the first threshold range, until the angle Δθ is within the first threshold range.

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

[0042] Specifically, the posture adjustment structure 10 is used to support the blade 200 and adjust the posture of the blade 200. The posture adjustment structure 10 includes a base 11 and a support body 12, the base 11 is used to provide support and fixation for the support body 12, and the support body 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 posture of the blade 200.

[0043] Optionally, the support body 12 has a clamping cavity 121 extending through the support body 12 along a first direction X, and the first direction X may be parallel to the axis of the blade 200. The shape of the support cavity may include a circular cavity, an elliptical cavity, a special-shaped cavity matching the outer circumference of the blade 200, etc. The blade 200 may be inserted into the clamping cavity 121 and have a stable relative position with the support body 12 during the rotation process.

[0044] The driving assembly 20 is used to drive the support body 12 to rotate relative to the base 11 with the aforementioned axis as the rotation axis. The driving assembly 20 can be arranged adjacent to / in contact with the posture adjustment structure 10, or a cavity can be arranged in the base 11 in the posture adjustment structure 10, and the driving assembly 20 can be arranged in the cavity to provide protection for the driving assembly 20, improve reliability and extend service life. The driving assembly 20 can be selected as a structure driven by human power, such as a crank, or the driving assembly 20 can be selected as a structure that does not require human power, such as an electric motor.

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

[0046] The controller 40 can be connected to the detector 30 and the driving component 20 in communication, respectively, to receive data signals detected by the detector 30 and / or output control signals to the driving component 20 to control its operation. The communication connection here includes direct connection through a signal line, signal transmission, and information exchange through a signal transceiver module.

[0047] Thus, the storage device 100 can detect the angle between the real-time wind direction and the blade 200 through the detector 30, record the angle as Δθ, and set the 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 realized by a logic circuit such as a comparator, and judge whether Δθ is within the range. If Δθ exceeds the range, it is determined that the angle between the wind direction and the blade 200 is too large, and vortex-induced vibration is prone to occur. At this time, the control drive assembly 20 drives the support body 12 to move, so that the blade 200 is rotated to a state facing the wind, that is, rotated to Δθ within the first threshold range, preferably rotated to Δθ close to 0°, thereby reducing the possibility of the blade 200 entering the vortex-induced vibration state, and effectively reducing the possibility of the blade 200 being damaged during the storage process. In addition, the cooperation of the detector 30, the controller 40, and the drive assembly 20 can realize automatic adjustment, improve the sensitivity and applicability of the storage device 100, and reduce labor costs.

[0048] In some optional embodiments, the detector 30 is configured to select a reference plane and obtain 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, and the angle Δθ is the absolute value of the difference between the angle value θ1 and the angle value θ2.

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

[0050] On this basis, the controller 40 can obtain the above two angles and calculate, and the absolute value of the difference between the two is Δθ. For example, when the blade 200 is placed in the storage device 100, the chord direction of the blade 200 can be placed horizontally first, and the horizontal plane is selected as the reference plane. At this time, θ1 is 0°, and then the blade 200 can be rotated according to the measured angle value θ2 so that the angle value θ1 is close to the angle value θ2.

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

[0052] Optionally, the first threshold range for comparison with Δθ may be between 0° and 10°, and may be 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 due to the flow of wind, 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 be correspondingly made between 0° and 10°, and the relative size between θ1 and θ2 is determined by the specific posture of the blade 200 and the real-time wind direction.

[0054] In some optional embodiments, the number of posture adjustment structures 10 is more than two and they are distributed along the first direction X, and at least one posture adjustment structure 10 is connected to a driving assembly 20 and a detector 30; or, the storage device 100 includes a posture adjustment structure 10, and the posture adjustment structure 10 includes a base 11 and a plurality of support bodies 12, and the plurality of support bodies 12 are distributed in sequence along the first direction X and are respectively rotatably connected to the base 11.

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

[0056] In an embodiment in which a plurality of posture adjustment structures 10 are provided, at least one posture adjustment structure 10 is connected to a drive assembly 20 and a detector 30, and the number and arrangement positions of the drive assemblies 20 and the detectors 30 can be selected to be the same or different.

[0057] Exemplarily, a drive assembly 20 may be provided at each attitude adjustment structure 10, and each drive assembly 20 may drive the support body 12 to rotate synchronously to prevent the blade 200 from receiving torsional damage; alternatively, a drive assembly 20 may be provided at some of the attitude adjustment structures 10, and the drive assembly 20 may be optionally provided on the attitude adjustment structure 10 corresponding to a position with a larger cross-sectional area of ​​the blade 200, and the other attitude adjustment structures 10 not provided with the drive assembly 20 are used to provide rotational freedom for the blade 200.

[0058] Similarly, detectors 30 may be provided in some of the posture adjustment structures 10, or, in order to improve the accuracy of detection, detectors 30 may be provided in multiple posture adjustment structures 10, and the required angle data may be obtained by comprehensive calculation based on the data collected by each detector 30.

[0059] In an embodiment in which a posture adjustment structure 10 is provided, it may include a base 11 extending along a first direction X with a longer dimension, and a plurality of supports 12 rotatably connected to the base 11. In this embodiment, the same base 11 is provided corresponding to a plurality of supports 12, and these supports 12 may be driven by the same driving assembly 20, or the base 11 may be provided with a plurality of driving assemblies 20 at the same time. Similarly, the base 11 and each support 12 may be provided with a detector 30, or the base 11 and a portion of the support 12 may be provided with a detector 30.

[0060] By setting the number of the posture adjustment structures 10 to be more than two, and distributing the number of the more than two posture adjustment structures 10 along the first direction X, so that the more than two posture adjustment structures 10 cooperate to adjust the posture of the blade 200, the overall size and weight of the posture adjustment structure 10 can be reduced, so that the storage device 100 is easy to transport and move, and the stability of the blade 200 during rotation can be improved. In addition, the size of the driving component 20 can be reduced, so that the driving component 20 can drive the support body 12 to rotate relative to the base 11 with the axis of the blade 200 as the rotation axis.

[0061] In some optional embodiments, the attitude adjustment structure 10 includes a first adjustment structure 13 and one or more second adjustment structures 14, or the attitude adjustment structure 10 includes multiple second adjustment structures 14; the support body 12 of the first adjustment structure 13 is annular, and at least one of the two side surfaces opposite to each other in the first direction X is provided with a connecting member, and the connecting member is used to connect to the root end face of the blade 200; the support body 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 to enclose and form a clamping cavity 121.

[0062] In the embodiment where a plurality of attitude adjustment structures 10 are provided, the attitude adjustment structures 10 may include two types, namely a first adjustment structure 13 and a second adjustment structure 14, and the two adjustment structures may be respectively used to be connected to different positions of the blade 200. The plurality of attitude adjustment structures 10 may all be provided as the second adjustment structure 14, or the plurality of attitude adjustment structures 10 may include one first adjustment structure 13 and more than one second adjustment structure 14.

[0063] Specifically, the first adjustment structure 13 can be used to connect with the end face of the blade root side of the blade 200. The support body 12 of the first adjustment structure 13 can be arranged in an annular shape, and can be optionally arranged in a circular ring shape for the convenience of rotation. The annular structure has two surfaces arranged opposite to each other in the first direction X, and the two surfaces can be optionally parallel to each other, and a connecting piece can be arranged on at least one of the two surfaces. When the blade 200 is connected to the first adjustment structure 13, its support body 12 can be arranged on one side of the end face of the blade root side of the blade 200 in the first direction X, and the side with the connecting piece is facing the blade 200, and the blade 200 is detachably connected through the connecting piece.

[0064] The second adjustment structure 14 can be used to connect with other areas of the blade 200 except the end surface, and can be optionally connected by surrounding the blade 200 and clamping. The support body 12 of the second adjustment structure 14 includes a rotating portion 141 and a clamping portion 142 connected to the rotating portion 141, wherein the rotating portion 141 can extend along a circular track similar to the support body 12 of the first adjustment structure 13, and can be optionally in the form of a closed loop or an opening with a certain width. The rotating portion 141 is rotatably connected to the base 11 of the second adjustment structure 14. The clamping portion 142 is arranged on the inner side of the rotating portion 141, and is used to form a clamping cavity 121 to clamp and fix the blade 200.

[0065] In the embodiment where the plurality of posture adjustment structures 10 are all second adjustment structures 14, the plurality of 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 having the same cross-sectional shape as the blade 200 to be clamped. In the embodiment where the plurality of posture adjustment structures 10 include the first adjustment structure 13 and the second adjustment structure 14, the first adjustment structure 13 is disposed 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 optional embodiments, the connecting member includes a connecting hole that is arranged through the first direction X, and / or the connecting member includes a threaded fastener that extends along the first direction X.

[0067] In an embodiment in which a first adjustment structure 13 is provided, a connector for connecting to the blade 200 is provided on the support body 12 thereof, and the first adjustment structure 13 can be provided at the root position of the blade 200 and can be optionally used to connect to an end face on one side of the root of the blade 200 .

[0068] Specifically, the end surface of the blade root side of the blade 200 is usually an annular surface, and is provided with a plurality of threaded fixing holes arranged at intervals along its own circumference, for connecting the blade 200 to the hub. When the blade 200 is installed on the storage device 100, it can be optionally connected through these fixing holes. Thus, the first adjustment structure 13 can be arranged close to the end surface of the blade root side of the blade 200 and connected to the aforementioned fixing holes.

[0069] Specifically, the connecting member may be a connecting hole and / or a fastener. In the embodiment in which the connecting hole is provided, the support body 12 of the first adjustment structure 13 may be provided in a circular ring shape, and a plurality of connecting holes may be provided thereon along its own circumference. The connecting holes may be provided in a one-to-one correspondence with the fixing holes on the blade root, so as to facilitate connection through fixing bolts or fixing pins. In the embodiment in which the connecting member is provided in a fastener, a threaded fastener may be connected to the aforementioned fixing hole so that it can be threadedly connected to the blade 200. The fastener may also be provided in a one-to-one correspondence with the fixing hole. In the embodiment in which both the connecting hole and the fastener are provided, the fastener may be provided through the connecting hole and the fixing hole on the blade 200 at the same time.

[0070] By configuring the connecting member as a connecting hole and / or a fastener, the connection between the blade 200 and the storage device 100 can be firmly established, and the blade 200 can be easily assembled and disassembled.

[0071] In some optional embodiments, the rotating portion 141 extends along a circular trajectory and is provided with an installation opening 1411 on its circumference, and the installation opening 1411 is communicated with the clamping cavity 121; the clamping portion 142 extends radially along the rotating portion 141, and a side surface of the clamping portion 142 facing away from the rotating portion 141 matches the outer surface shape of the blade 200.

[0072] In the second adjustment structure 14, the support body 12 includes a rotating portion 141 and a clamping portion 142, wherein the rotating portion 141 can extend along an arc-shaped trajectory, but does not form a closed loop, but is provided with a mounting opening 1411 on its circumference for easy access of the blade 200, and the width of the mounting opening 1411 can be selected to be greater than the thickness of the corresponding position of the blade 200. By providing the mounting opening 1411, the process of inserting the support body 12 from the tip side of the blade 200 can be omitted, and the base 11 and the support body 12 do not need to be moved, thereby improving the convenience of use of the storage device 100.

[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 drive assembly 20 may include a drive motor and a drive gear, wherein the drive motor is used to output torque, and the drive gear is connected to the output end of the drive motor. Correspondingly, the outer peripheral surface of the support member may be provided with rotating teeth, and the rotating teeth may be meshed with the drive gear, so that the drive motor can drive the support body 12 to rotate.

[0080] Optionally, the driving motor may be a stepping motor, and through the combination of the stepping motor and the gear transmission, the rotation angle of the support 12 can be accurately controlled. Meanwhile, in the embodiment where the storage device 100 includes a plurality of supports 12, the plurality of supports 12 may be driven by a plurality of driving motors respectively, or the plurality of supports 12 may be driven by the same driving motor, for example, through a transmission shaft, a transmission belt, etc., so that the driving motor can drive the plurality of supports 12 at the same time.

[0081] In some optional embodiments, the posture adjustment structure 10 is provided with an angle mark, and the angle mark is used to indicate the rotation angle of the support body 12 .

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

[0083] Optionally, the angle mark may show multiple data, such as one or more parameters such as the real-time angle between the blade 200 and the wind direction, the angular position of the blade 200, the wind direction, and the angle between the chord direction of the blade 200 and the horizontal plane.

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

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

[0086] Specifically, to facilitate rotation, the support body 12 may at least partially extend along a circular track, and a scale mark may be provided in the region where the portion extends along the circular track, and the scale mark corresponds to the rotation angle of the support body 12, and a numerical scale from 0° to 360° is provided. The scale mark may be provided on at least one of the two side surfaces of the support body 12 opposite to each other in the first direction X, so as to facilitate viewing by personnel.

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

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

[0089] The detector 30 is used to obtain the angle between the wind direction and the blade 200. On this basis, the detector 30 may include at least two sensors, one of which is a gyroscope arranged on the blade 200 and / or the support body 12, which is used to detect the angle of the support body 12 and the blade 200, and can be optionally used to detect the 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 one or more of the following sensor types: a weathervane 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 other positions other than the blade 200 and the support 12, and can be arranged close to the blade 200 to more accurately detect the wind direction at the blade 200 and avoid the rotation from interfering with it.

[0091] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this 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; The controller is communicatively connected with the driving component and the detector respectively, and the controller is configured to control the driving component 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.

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 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; Alternatively, the storage device includes a posture adjustment structure, and 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.

5. The storage device for suppressing vortex-induced vibration according to claim 4, characterized in that: 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 surface 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, and the clamping part is connected to the rotating part and is used to enclose and form the clamping cavity.

6. The storage device for suppressing vortex-induced vibration according to claim 5, 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.

7. The storage device for suppressing vortex-induced vibration according to claim 5, 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 communicated 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.

8. The storage device for suppressing vortex-induced vibration according to claim 7, 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.

9. 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.

10. 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.

11. The storage device for suppressing vortex-induced vibration according to claim 10, 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.

12. 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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