Wind resistance structure for offshore wind power and use method of wind resistance structure

By designing a wind resistance structure for offshore wind power, using the bottom cavity assembly to connect the counterweight unit with the seabed anchoring and suspension, and adjusting the center of gravity of the platform, the problem of platform shaking in traditional offshore wind generator sets is solved, and the efficiency, stability and reliability of the wind power system are improved.

CN119664573APending Publication Date: 2025-03-21SHANGHAI OUYANG OFFSHORE WIND POWER TECH CO LTD
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Patent Information

Application Number
CN202411583905.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

The platform center of gravity of traditional offshore wind generator sets is fixed, which causes the sea surface to fluctuate in extreme weather, causing the platform to fluctuate, which in turn causes the platform to shake, affect the stability and wind resistance, and reduce operating efficiency.

Method used

A wind resistance structure is designed, including a bottom cavity assembly, a support seat assembly, a support rod and a blade assembly, and the counterweight unit is connected to the seabed anchoring and suspension through the bottom cavity assembly, and the support bottom area is expanded by using the driving components, adjust the center of gravity of the platform, and reduce the influence of wind resistance.

Benefits of technology

By adjusting the center of gravity of the platform, the influence of wind resistance is reduced, the swaying amplitude of the platform with wind and waves is reduced, and the efficiency, stability and reliability of the wind power system are improved.

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Abstract

The invention discloses a wind resistance structure for offshore wind power and a using method thereof, and relates to the field of offshore wind power generation. The wind resistance structure comprises a bottom cavity assembly, a supporting seat assembly is arranged above the bottom cavity assembly, a supporting rod is arranged at the upper end of the supporting seat assembly, a machine cavity is formed in the top of the supporting rod, and a blade assembly is arranged on one side of the machine cavity; a second motor is fixedly connected into the bottom cavity assembly, a first bevel gear is rotationally connected into the bottom cavity assembly and connected with the output end of the second motor, a second lead screw is fixedly connected to one side of the first bevel gear, and a limiting rod is further fixedly installed in the bottom cavity assembly. The gravity center position of the wind generating set can be changed through the expansion effect of the driving component, so that the generating set is more stable on the sea, the device is kept balanced in the working process, shaking of the device due to overlarge offshore wind power is avoided, the gravity center of the platform can be adjusted through the design, and the wind resistance influence is reduced. Therefore, the efficiency, stability and reliability of the wind power system are improved.
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Description

Technical Field

[0001] The present invention relates to the field of offshore wind power generation, and in particular to a wind resistance structure for offshore wind power generation and a method of using the same. Background Art

[0002] In recent years, with the rapid development of the world economy, new energy sources such as wind energy, tidal energy, and solar energy have gradually become known to the public as renewable energy and clean energy. The development of new energy has become an indispensable part of social development. As one of the new energy sources, wind energy is currently mainly divided into onshore wind energy and offshore wind energy. Compared with land wind, offshore wind is not restricted by environmental factors and obstacles, so its utilization is higher. As an offshore wind energy conversion device, the development of offshore wind turbines has become an inevitable trend. Wind turbines are electrical equipment that converts wind energy into mechanical work, which drives the rotor to rotate and finally outputs alternating current. Wind turbines generally consist of wind rotors, generators, directional controllers, towers, speed limit safety mechanisms, and energy storage devices. As the working basis of offshore wind turbines, the design of their platforms is of utmost importance. The reliability of the platform directly affects the working efficiency of wind turbines.

[0003] Since the wind force and direction in the offshore environment are often uncertain, various extreme weather conditions often occur on the sea surface. Offshore wind turbines are subject to wind resistance when working. People need to reduce the wind resistance of wind turbines during operation to improve the operating efficiency and stability of the device. The usual methods for reducing the wind resistance of wind turbines include: (1) optimizing the supporting structure of the wind turbine to lower the center of gravity of the platform of the device, improve the stability of the platform support of the device, and reduce the swaying amplitude of the platform with wind and waves; (2) using a semi-submersible offshore wind power generation platform; (3) optimizing the transmission system of the offshore wind turbine.

[0004] On this basis, after searching the patent network, the Chinese patent announcement number Chinese patent CN113266527A discloses a floating offshore wind power, and its scheme is that the floating offshore wind power includes a wind turbine unit, a tower, a support structure and a mooring structure. The wind turbine unit is connected to the top of the support structure through the tower, and the mooring structure is connected to the bottom of the support structure. The support structure is a cubic frame structure, and the opening is set at the downwind position. The other three sides of the support structure are correspondingly provided with breeding chambers;

[0005] It can be seen that there are shortcomings in this patent application: the center of gravity of the platform in the traditional offshore wind turbine generator set solution is fixed. Various extreme weather conditions often occur on the sea surface, and the wind resistance will increase. At this time, the undulations of the sea surface will cause the buoyancy center of the entire platform to change. If the center of gravity remains unchanged, the platform will cause a large shake as the buoyancy center of the platform changes, which will affect the stability and wind resistance of the offshore generator set on the platform and reduce the operating efficiency of the device.

[0006] In view of the above problems, a wind resistance structure for offshore wind power and a method of using the same are proposed. Summary of the invention

[0007] The purpose of the present invention is to provide a wind resistance structure for offshore wind power and a method of using the same. By adopting the device to work, the problem that the center of gravity of the platform in the traditional offshore wind power generator set scheme in the above background is fixed, various extreme weather conditions often occur on the sea surface, and the wind resistance will increase. At this time, the undulation of the sea surface will cause the buoyancy center of the entire platform to change, while the unchanged center of gravity will cause the platform to shake greatly as the buoyancy center of the platform changes, which will affect the stability and wind resistance of the offshore generator set on the platform and reduce the operating efficiency of the device.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: comprising a bottom cavity component, a support seat component is arranged above the bottom cavity component, a support rod is arranged at the upper end of the support seat component, an organic cavity is arranged on the top of the support rod, and a blade component is arranged on one side of the organic cavity, characterized in that: a second motor is fixedly connected inside the bottom cavity component, a first bevel gear is rotatably connected inside the bottom cavity component, the first bevel gear is connected to the output end of the second motor, a second screw rod is fixedly connected to one side of the first bevel gear, a limiting rod is also fixedly installed inside the bottom cavity component, a rack block is threadedly connected to the outer periphery of the second screw rod, a limiting slide is fixedly connected to the bottom of the rack block, and the limiting slide is slidably connected to the outer periphery of the limiting rod;

[0009] Preferably, the support seat assembly comprises a support main board rotatably connected to the top of the bottom cavity assembly, and a reinforcing rod is fixedly connected between the support main board and the support rod, and the reinforcing rod is provided in multiple groups; a driving component is provided on the top surface of the support main board, and the driving component is provided in four groups;

[0010] Preferably, a first motor is provided inside the support main board, a cavity is fixedly installed in the middle of the support main board, a first screw is rotatably connected inside the cavity, the first screw is connected to the output end of the first motor, and a telescopic main rod is threadedly connected to the outer periphery of the first screw, and the telescopic main rod is slidably connected to one side of the cavity, and a sleeve is fixedly connected to the top of the telescopic main rod, and the sleeve is slidably mounted on the outer periphery of the cavity.

[0011] Preferably, one side of the rack block is meshedly connected with a first gear, the top of the first gear is fixedly connected with a rotating main rod, and the top of the rotating main rod extends to the bottom of the supporting main board.

[0012] Preferably, the supporting main board is fixedly connected to the rotating main rod, one side of the first bevel gear is meshingly connected to the second bevel gear, and the bottom of the second bevel gear is fixedly connected to a connecting rod, and one end of the connecting rod is fixedly connected to a locking disk.

[0013] Preferably, installation cavities are evenly distributed on one side of the locking disk, and the installation cavities are provided in multiple groups, an automatic telescopic rod is provided inside the bottom cavity assembly, a movable disk is provided on one side of the automatic telescopic rod, and a locking rod is fixedly connected to one side of the movable disk.

[0014] Preferably, the engaging rods are provided in multiple groups, the movable plate is connected to the output end of the automatic telescopic rod, and the engaging rods match the installation cavity and are engaged with each other.

[0015] Preferably, the driving component includes a limiting cavity groove plate fixedly connected to the top of the supporting main board.

[0016] Preferably, the inner cavity of the limiting cavity groove plate is slidably connected to a limiting block, and the top of the limiting block is fixedly connected to a sliding cavity block.

[0017] Preferably, one side of the inner cavity of the sliding cavity block is slidably connected with a telescopic block.

[0018] Preferably, the sliding cavity block is slidably connected to the top surface of the limiting cavity groove plate, and one side of the sliding cavity block is rotatably connected to a rotating rod component.

[0019] Preferably, a method for using a wind resistance structure for offshore wind power comprises the following steps:

[0020] Step 1: Connect the bottom cavity assembly of the present invention to the anchor point preset on the seabed through multiple mooring cables, and suspend and connect the counterweight unit through multiple first telescopic rods. The operator firmly fixes the bottom cavity assembly on the seabed, and the support rod is erected in the sea. The blade assembly and the machine cavity are designed above the sea level. The bottom of the support rod is tightly fixed and installed with the support main board through multiple groups of reinforcing rods to improve the stability of the support rod and the components above the support rod;

[0021] Step 2: The operator can turn on the first motor, and the rotation of the first motor drives the first screw to rotate, and the sliding cavity block will move forward along the track of the limit cavity slot plate, and multiple groups of sliding cavity blocks will open outward until the limit block moves to the top of the limit cavity slot plate. In the subsequent assembly process, the operator can pull the telescopic block of the inner cavity of each group of sliding cavity blocks outward until the telescopic block extends to the longest on one side of the sliding cavity block, and firmly assemble the multiple groups of telescopic blocks with the seabed. This operation increases the overall support bottom area of ​​the support assembly under the support rod through the expansion of multiple groups of driving components, making the bottom cavity assembly and the support seat assembly placed in the sea more stable;

[0022] Step 3: The user can adjust the orientation of the blade assembly according to the direction of the sea wind. It is best to make the orientation of the blade assembly follow the actual direction of the sea wind. The operator can turn on the second motor to make the second motor rotate forward or reverse, thereby achieving the purpose of controlling the orientation of the blade assembly. When the device is adjusted to a suitable orientation, the second motor is turned off.

[0023] Step 4: Turn on the automatic telescopic rod, so that the automatic telescopic rod extends to drive the engaging rod to move toward the engaging disk, until the multiple sets of engaging rods match the multiple sets of mounting cavities on the engaging disk, avoiding the first bevel gear from being offset.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. A wind resistance structure for offshore wind power proposed by the present invention connects the bottom cavity assembly of the present invention to a preset anchor point on the seabed through multiple mooring cables, and suspends and connects the counterweight unit through multiple first telescopic rods. The operator firmly fixes the bottom cavity assembly on the seabed, the support rod is erected in the sea, the blade assembly and the machine cavity are designed above the sea level, and the bottom of the support rod is tightly fixed and installed with the support main board through multiple groups of reinforcing rods. In order to improve the stability of the support rod and the components above the support rod, the operator can turn on the first motor, and the multiple groups of sliding cavity blocks will open outward until the limit block moves to the top of the limit cavity slot plate. In the subsequent assembly process, the operator can pull the telescopic fastener of the inner cavity of each group of sliding cavity blocks outward until The telescopic fasteners extend to their longest length on one side of the sliding cavity block, and multiple sets of telescopic fasteners are firmly assembled to the seabed. This operation increases the overall supporting bottom area of ​​the supporting assembly under the support rod through the expansion of multiple sets of driving components, making the bottom cavity assembly and the supporting seat assembly placed in the sea more stable, thereby making the support rod, the machine cavity and the blade assembly more stable. The expansion effect of the driving components can change the center of gravity position of the wind turbine generator set, making the generator set more stable at sea, and the device maintains balance during operation to prevent it from shaking due to excessive wind at sea. This design can reduce the impact of wind resistance and reduce the amplitude of the platform shaking with wind and waves by adjusting the center of gravity of the platform, thereby improving the efficiency, stability and reliability of the wind power system.

[0026] 2. When the device needs to be disassembled for maintenance, the bottom cavity assembly and the support seat assembly need to be disassembled from the sea. In order to facilitate the disassembly of the bottom cavity assembly and the support seat assembly, the pair of driving components can be retracted, and the telescopic fast can be completely retracted into the sliding cavity block, and then the first motor is started to rotate it in the opposite direction. The reverse rotation of the first screw rod will drive the telescopic main rod to extend along the cavity tube, and the telescopic main rod drives the sleeve to move upward. Due to the rise of the sleeve, multiple groups of rotating rod components drive multiple groups of sliding cavity blocks to move toward the sleeve. The sliding cavity block moves toward the center along the track of the limiting cavity groove plate until the pair of sliding cavity blocks are retracted to the most central position of the device, which is convenient for the operator to disassemble the entire device and facilitate maintenance work;

[0027] 3. The present invention proposes a wind resistance structure for offshore wind power, in which the blades are the most important component of the wind turbine and are also the part that is most likely to generate resistance. In order to reduce resistance, the design of the blades should be optimized. The aerodynamic theory can be used to design the support rods into an aerodynamic shape to reduce resistance and improve power generation efficiency. At the same time, when designing the blades, the strength and rigidity of the blades should be considered to ensure that the blades will not break or break when running at high speeds; a new type of drag-reducing coating can be applied to the surface of the wind turbine blades to further effectively reduce resistance. The support rods in the wind turbine generator set of the present invention are made of carbon fiber material to make the blades, which are not only light and strong, but also can effectively reduce wind resistance and improve power generation efficiency;

[0028] 4. The user can adjust the orientation of the blade assembly according to the direction of the offshore wind. It is best to make the orientation of the blade assembly follow the actual direction of the sea breeze, thereby reducing the wind resistance of the device and avoiding the situation where the blade assembly and the actual wind direction are opposite to each other; the operator can turn on the second motor to make the second motor rotate forward or reversely, driving the first bevel gear to rotate, and at this time the second screw rod will rotate forward or reversely, and then the rack block will move horizontally to the left or right along the second screw rod, and the rack block will drive the first gear to rotate forward or reversely, and the first gear will drive the rotating main rod and the supporting main board to rotate. The forward or reverse rotation adjustment of the supporting main board will drive the support rod and the blade assembly above it to rotate and adjust, thereby achieving the effect of controlling and adjusting the orientation of the blade assembly, and the second motor is turned off when the device is adjusted to the appropriate orientation;

[0029] 5. Then, the automatic telescopic rod is opened to extend the automatic telescopic rod to drive the engaging rod to move toward the engaging disk until the multiple sets of engaging rods are matched with the multiple sets of mounting cavities on the engaging disk. The engaging rods are fixed with the mounting cavities, and the movable disk is fixedly connected with the engaging disk, thereby stabilizing the connecting rod, the second bevel gear and the first bevel gear to avoid the first bevel gear from being offset. This arrangement can adjust the orientation of the blade assembly on the control device through the bottom cavity assembly. According to the actual situation, the orientation of the blade assembly is adjusted along the actual direction of the sea breeze, thereby further reducing the wind resistance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is the overall structure diagram of the present invention;

[0031] Figure 2 It is a structural diagram of the support seat assembly, bottom cavity assembly and support rod of the present invention;

[0032] Figure 3 It is a structural diagram of the support base assembly, bottom cavity assembly, support rod, machine cavity and blade assembly of the present invention;

[0033] Figure 4 It is a structural diagram of the support base assembly of the present invention;

[0034] Figure 5 This is a structural diagram of the limiting cavity slot plate of the present invention;

[0035] Figure 6 It is a structural diagram of the sleeve driving component of the present invention;

[0036] Figure 7 This is a structural diagram of the sleeve and cavity split parts of the present invention;

[0037] Figure 8It is a structural diagram of the driving component of the present invention;

[0038] Fig. 9 It is a structural diagram of the driving component in the bottom cavity assembly of the present invention;

[0039] Fig.10 It is a structural diagram of the limiting component in the bottom cavity assembly of the present invention.

[0040] In the figure: 1, bottom cavity assembly; 11, rotating main rod; 12, first gear; 13, rack block; 14, limiting slide plate; 15, limiting rod; 16, second screw rod; 17, first bevel gear; 18, second bevel gear; 19, second motor; 191, connecting rod; 192, engaging plate; 193, moving plate; 194, engaging rod; 195, automatic telescopic rod; 2, support seat assembly; 21, supporting main board; 211, first motor; 22, reinforcing rod; 23, driving component; 231, limiting cavity groove plate; 232, limiting block; 233, sliding cavity block; 234, telescopic fast; 235, rotating rod component; 25, sleeve; 26, cavity tube; 27, telescopic main rod; 28, first screw rod; 3, support rod; 4, machine cavity; 5, blade assembly. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0043] Combination Figure 1-10A wind resistance structure for offshore wind power comprises a bottom cavity assembly 1, a support seat assembly 2 is arranged above the bottom cavity assembly 1, a support rod 3 is arranged at the upper end of the support seat assembly 2, an organic cavity 4 is arranged on the top of the support rod 3, a blade assembly 5 is arranged on one side of the organic cavity 4, a second motor 19 is fixedly connected inside the bottom cavity assembly 1, a first bevel gear 17 is rotatably connected inside the bottom cavity assembly 1, the first bevel gear 17 is connected to the output end of the second motor 19, a second screw rod 16 is fixedly connected to one side of the first bevel gear 17, a limit rod 15 is also fixedly installed inside the bottom cavity assembly 1, a rack block 13 is threadedly connected to the outer periphery of the second screw rod 16, a limit slide plate 14 is fixedly connected to the bottom of the rack block 13, and the limit slide plate 14 is slidably connected to the outer periphery of the limit rod 15; support The seat assembly 2 includes a supporting main board 21 rotatably connected to the top of the bottom cavity assembly 1, and a reinforcing rod 22 is fixedly connected between the supporting main board 21 and the supporting rod 3, and the reinforcing rod 22 is provided in multiple groups; a driving component 23 is provided on the top surface of the supporting main board 21, and the driving component 23 is provided in four groups; a first motor 211 is provided inside the supporting main board 21, a cavity tube 26 is fixedly installed in the middle of the supporting main board 21, a first screw rod 28 is rotatably connected inside the cavity tube 26, the first screw rod 28 is connected to the output end of the first motor 211, and a telescopic main rod 27 is threadedly connected to the outer periphery of the first screw rod 28, and the telescopic main rod 27 is slidably connected to one side of the cavity tube 26, and a sleeve 25 is fixedly connected to the top of the telescopic main rod 27, and the sleeve 25 is slidably sleeved on the outer periphery of the cavity tube 26.

[0044] The present invention will be further described below in conjunction with the embodiments.

[0045] Embodiment 1:

[0046] See also Figure 1-8 The driving component 23 includes a limiting cavity plate 231 fixedly connected to the top of the supporting main board 21, the limiting cavity plate 231 is slidably connected to the limiting block 232 in the inner cavity, and a sliding cavity block 233 is fixedly connected to the top of the limiting block 232, a telescopic fastener 234 is slidably connected to one side of the inner cavity of the sliding cavity block 233, the sliding cavity block 233 is slidably connected to the top surface of the limiting cavity plate 231, and a rotating rod component 235 is rotatably connected to one side of the sliding cavity block 233.

[0047] Embodiment 2:

[0048] See also Figure 1-3 and Figure 9-10, one side of the rack block 13 is meshedly connected with the first gear 12, the top of the first gear 12 is fixedly connected with the rotating main rod 11, and the top of the rotating main rod 11 extends to the bottom of the supporting main board 21, the supporting main board 21 is fixedly connected to the rotating main rod 11, one side of the first bevel gear 17 is meshedly connected with the second bevel gear 18, and the bottom of the second bevel gear 18 is fixedly connected with a connecting rod 191, one end of the connecting rod 191 is fixedly connected with a clamping disk 192, one side of the clamping disk 192 is evenly distributed with mounting cavities, and the mounting cavities are provided with multiple groups, an automatic telescopic rod 195 is provided inside the bottom cavity assembly 1, and a moving disk 193 is provided on one side of the automatic telescopic rod 195, and a clamping rod 194 is fixedly connected on one side of the moving disk 193, and multiple groups of clamping rods 194 are provided, the moving disk 193 is connected to the output end of the automatic telescopic rod 195, the clamping rod 194 matches the mounting cavity and is clamped and connected.

[0049] To summarize, the working principle of the present invention is as follows: the present invention proposes a wind resistance structure for offshore wind power. The wind resistance structure of offshore wind power mainly involves reducing the wind resistance of the wind turbine during operation to improve its operating efficiency and stability. In order to reduce wind resistance, one method is to optimize the supporting structure of the wind turbine and enhance the stability of the support rod 3 and the supporting components below it. The present invention can adopt a semi-submersible offshore wind power generation platform, which can adapt to the development needs of offshore wind power in medium and shallow water conditions. The semi-submersible platform adopts a three-column layout. The lower end of each column is connected to the vertical swing plate and connected by a cross brace. This design not only improves the movement performance of the platform, but also facilitates on-site assembly. The support is designed by designing a platform body with a cavity structure, and the cavity structure is used to provide buoyancy for the platform; the bottom cavity assembly 1 of the present invention is connected to a preset anchor point on the seabed through multiple mooring cables, and through multiple The first telescopic rod is suspended and connected to the counterweight unit, and the operator fixes the bottom cavity component 1 firmly in the seabed, the support rod 3 is erected in the sea, the blade component 5 and the machine cavity 4 are designed above the sea level, and the bottom of the support rod 3 is tightly fixed and installed with the support main board 21 through multiple groups of reinforcing rods 22. In order to improve the stability of the support rod 3 and the components above the support rod 3, the operator can turn on the first motor 211, and the rotation of the first motor 211 drives the first screw rod 28 to rotate, and the telescopic main rod 27 is slidably connected to one side of the cavity tube 26. At this time, the telescopic main rod 27 retracts into the cavity tube 26, and the telescopic main rod 27 drives the sleeve 25 to descend. The vertical descent of the sleeve 25 will drive one end of the multiple sets of rotating rod components 235 on its periphery to descend and rotate, and the other end of the multiple sets of rotating rod components 235 will drive and move the sliding cavity block 233 at the corresponding position, and the sliding cavity block 233 will move forward along the track of the limiting cavity groove plate 231, and the multiple sets of sliding cavity blocks 233 will open outward until the limiting block 232 moves to the top of the limiting cavity groove plate 231. In the subsequent assembly process, the operator can pull the telescopic fast 234 in the inner cavity of each set of sliding cavity blocks 233 outward until the telescopic fast 234 extends to the longest on one side of the sliding cavity block 233, and firmly assemble the multiple sets of telescopic fast 234 to the seabed. This operation The support bottom area of ​​the whole support assembly under the support rod 3 is increased by expanding multiple sets of driving components 23, so that the bottom cavity assembly 1 and the support seat assembly 2 placed in the sea are more stable, and thus the support rod 3, the machine cavity 4 and the blade assembly 5 are more stable. The expansion effect of the driving component 23 can change the center of gravity position of the wind turbine generator set, so that the generator set is more stable at sea, and the device maintains balance during operation to avoid shaking due to excessive wind at sea. This design can reduce the influence of wind resistance by adjusting the center of gravity of the platform, reduce the shaking amplitude of the platform with wind and waves, and thus improve the efficiency, stability and reliability of the wind power system;

[0050] When the device needs to be disassembled for maintenance, the bottom cavity assembly 1 and the support seat assembly 2 need to be disassembled from the sea. In order to facilitate the disassembly of the bottom cavity assembly 1 and the support seat assembly 2, the pair of driving components 23 can be retracted, and the telescopic fast 234 can be completely retracted into the sliding cavity block 233, and then the first motor 211 is started to rotate it in the opposite direction. The reverse rotation of the first screw rod 28 will drive the telescopic main rod 27 to extend along the cavity tube 26, and the telescopic main rod 27 drives the sleeve 25 to move upward. Due to the rise of the sleeve 25, the multiple groups of rotating rod components 235 drive the multiple groups of sliding cavity blocks 233 to move toward the sleeve 25, and the sliding cavity block 233 moves toward the center along the trajectory of the limiting cavity groove plate 231 until the pair of sliding cavity blocks 233 are retracted to the most central position of the device, which is convenient for the operator to disassemble the entire device and facilitate maintenance work;

[0051] The present invention proposes a wind resistance structure for offshore wind power, wherein the blade is the most important component of the wind turbine and is also the part that is most likely to generate resistance. In order to reduce resistance, the design of the blade should be optimized. The aerodynamic theory can be used to design the support rod 3 into an aerodynamic shape to reduce resistance and improve power generation efficiency. At the same time, when designing the blade, the strength and rigidity of the blade should be considered to ensure that the blade will not break or break when running at high speed; a new type of drag-reducing coating can be applied to the surface of the blade of the wind turbine to further effectively reduce resistance. The support rod 3 in the wind turbine generator set of the present invention is made of carbon fiber material to make the blade, which is not only light and strong, but also can effectively reduce wind resistance and improve power generation efficiency;

[0052] The user can adjust the orientation of the blade assembly 5 according to the direction of the sea wind. It is best to make the orientation of the blade assembly 5 follow the actual direction of the sea breeze, thereby reducing the wind resistance of the device and avoiding the situation where the blade assembly 5 is opposite to the actual wind direction; the operator can turn on the second motor 19 to make the second motor 19 rotate forward or reverse, driving the first bevel gear 17 to rotate, and at this time the second screw rod 16 will rotate forward or reverse, and then the rack block 13 will move horizontally to the left or right along the second screw rod 16, and the rack block 13 will drive the first gear 12 to rotate forward or reverse, and the first gear 12 will drive the rotating main rod 11 and the supporting main board 21 to rotate, and the forward or reverse rotation adjustment of the supporting main board 21 will drive the support rod 3 and the blade assembly 5 above it to rotate. The second motor 19 is turned off when the device is adjusted to a suitable position, and the automatic telescopic rod 195 is turned on, so that the automatic telescopic rod 195 is extended to drive the engaging rod 194 to move toward the engaging disk 192, until the multiple groups of engaging rods 194 are matched with the multiple groups of mounting cavities on the engaging disk 192, and the engaging rods 194 are fixedly connected to the engaging disk 192 by the engagement of the mounting cavities, thereby stabilizing the connecting rod 191, the second bevel gear 18 and the first bevel gear 17, and avoiding the first bevel gear 17 from being offset. This arrangement can adjust the orientation of the blade assembly 5 on the control device through the bottom cavity assembly 1, and according to the actual situation, the orientation of the blade assembly 5 is along the actual direction of the sea breeze, thereby further reducing the wind resistance of the device.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind resistance structure for offshore wind power, comprising a bottom cavity assembly (1), a support seat assembly (2) being arranged above the bottom cavity assembly (1), a support rod (3) being arranged at the upper end of the support seat assembly (2), an organic cavity (4) being arranged at the top of the support rod (3), a blade assembly (5) being arranged at one side of the organic cavity (4), characterized in that: A second motor (19) is fixedly connected inside the bottom cavity component (1), a first bevel gear (17) is rotatably connected inside the bottom cavity component (1), the first bevel gear (17) is connected to the output end of the second motor (19), a second screw rod (16) is fixedly connected to one side of the first bevel gear (17), a limit rod (15) is also fixedly installed inside the bottom cavity component (1), the outer periphery of the second screw rod (16) is threadedly connected to a rack block (13), the bottom of the rack block (13) is fixedly connected to a limit slide plate (14), and the limit slide plate (14) is slidably connected to the outer periphery of the limit rod (15); The support seat assembly (2) comprises a support main board (21) rotatably connected to the top of the bottom cavity assembly (1), and a reinforcing rod (22) is fixedly connected between the support main board (21) and the support rod (3), and the reinforcing rod (22) is provided in multiple groups; a driving component (23) is provided on the top surface of the support main board (21), and the driving component (23) is provided in four groups; A first motor (211) is arranged inside the supporting main board (21), a cavity tube (26) is fixedly installed in the middle of the supporting main board (21), a first screw rod (28) is rotatably connected inside the cavity tube (26), the first screw rod (28) is connected to the output end of the first motor (211), and a telescopic main rod (27) is threadedly connected to the outer periphery of the first screw rod (28), and the telescopic main rod (27) is slidably connected to one side of the cavity tube (26), and a sleeve (25) is fixedly connected to the top of the telescopic main rod (27), and the sleeve (25) is slidably sleeved on the outer periphery of the cavity tube (26).

2. A wind resistance structure for offshore wind power according to claim 1, characterized in that: One side of the rack block (13) is meshedly connected with a first gear (12), the top of the first gear (12) is fixedly connected with a rotating main rod (11), and the top of the rotating main rod (11) extends to the bottom of the supporting main board (21).

3. A wind resistance structure for offshore wind power according to claim 2, characterized in that: The supporting main board (21) is fixedly connected to the rotating main rod (11); one side of the first bevel gear (17) is meshingly connected to the second bevel gear (18); the bottom of the second bevel gear (18) is fixedly connected to a connecting rod (191); one end of the connecting rod (191) is fixedly connected to a locking disc (192).

4. A wind resistance structure for offshore wind power according to claim 3, characterized in that: One side of the locking plate (192) is evenly distributed with installation cavities, and the installation cavities are provided in multiple groups. An automatic telescopic rod (195) is provided inside the bottom cavity component (1), and a movable plate (193) is provided on one side of the automatic telescopic rod (195), and a locking rod (194) is fixedly connected to one side of the movable plate (193).

5. A wind resistance structure for offshore wind power according to claim 4, characterized in that: The locking rods (194) are provided in multiple groups, the movable plate (193) is connected to the output end of the automatic telescopic rod (195), and the locking rods (194) match the installation cavity and are locked and connected.

6. A wind resistance structure for offshore wind power according to claim 5, characterized in that: The driving component (23) comprises a limiting cavity plate (231) fixedly connected to the top of the supporting main board (21).

7. A wind resistance structure for offshore wind power according to claim 6, characterized in that: The inner cavity of the limiting cavity groove plate (231) is slidably connected to the limiting block (232), and the top of the limiting block (232) is fixedly connected to the sliding cavity block (233).

8. A wind resistance structure for offshore wind power according to claim 7, characterized in that: A telescopic block (234) is slidably connected to one side of the inner cavity of the sliding cavity block (233).

9. A wind resistance structure for offshore wind power according to claim 8, characterized in that: The sliding cavity block (233) is slidably connected to the top surface of the limiting cavity groove plate (231), and one side of the sliding cavity block (233) is rotatably connected to a rotating rod component (235).

10. A method for using a wind resistance structure for offshore wind power according to claims 1-9, characterized in that: The steps include: Step 1: Connect the bottom cavity assembly (1) of the present invention to a preset anchor point on the seabed through multiple mooring cables, and suspend and connect the counterweight unit through multiple first telescopic rods. The operator firmly fixes the bottom cavity assembly (1) on the seabed, and the support rod (3) is erected in the sea. The blade assembly (5) and the machine cavity (4) are designed above the sea level. The bottom of the support rod (3) is tightly fixed and installed with the support main board (21) through multiple groups of reinforcing rods (22) to improve the stability of the support rod (3) and the components above the support rod (3); Step 2: The operator can turn on the first motor (211), and the rotation of the first motor (211) drives the first screw rod (28) to rotate, and the sliding cavity block (233) will move forward along the track of the limiting cavity groove plate (231), and the multiple groups of sliding cavity blocks (233) will open outward until the limiting block (232) moves to the top of the limiting cavity groove plate (231). In the subsequent assembly process, the operator can pull the telescopic block (234) of the inner cavity of each group of sliding cavity blocks (233) outward until the telescopic block (234) extends to the longest on one side of the sliding cavity block (233), and the multiple groups of telescopic blocks (234) are firmly assembled with the seabed. This operation increases the overall support bottom area of ​​the support assembly under the support rod (3) through the expansion of the multiple groups of driving components (23), so that the bottom cavity assembly (1) and the support seat assembly (2) placed in the sea are more stable; Step 3: The user can adjust the orientation of the blade assembly (5) according to the direction of the sea wind, preferably making the orientation of the blade assembly (5) follow the actual direction of the sea wind. The operator can turn on the second motor (19) to make the second motor (19) rotate forward or reverse, thereby achieving the purpose of controlling the orientation of the blade assembly (5). When the device is adjusted to a suitable orientation, the second motor (19) is turned off. Step 4: Open the automatic telescopic rod (195), so that the automatic telescopic rod (195) extends to drive the locking rod (194) to move towards the locking plate (192), until the multiple groups of locking rods (194) match the multiple groups of mounting cavities on the locking plate (192), thereby preventing the first bevel gear (17) from being offset.

Citation Information

Patent Citations

  • Floating type offshore wind power

    CN113266527A