Offshore anti-vibration type power generation mechanism driven by buoy

Abstract

The invention discloses an offshore anti-vibration type power generation mechanism driven by a buoy, which comprises a fan tower body, a vibration buffering device, the buoy, a platform truss and a connecting structure, an annular groove is formed in the fan tower body, and a ball is embedded in the annular groove; the vibration buffering device comprises a shell, a connecting assembly and a vibration buffering cross rod, and a permanent magnet is arranged in the shell; electromagnets are distributed on the inner wall of the shell; the buoy comprises an inner shell, a buckle device, an inner bearing, a supporting structure, an outer buoy wall and an inner buoy wall wound with a coil. An annular magnet is arranged on the supporting structure; a spiral blade, a connecting assembly and a large gear are arranged on the wall of the outer cylinder; a transmission gear is engaged in the bull gear; a bearing is arranged between the bottom of the outer cylinder wall and the bottom of the inner cylinder wall; the bearing is connected with a pinion; the spiral blade drives the outer cylinder wall and the large gear to rotate, the large gear drives the small gear and the inner cylinder wall to rotate through the transmission gear, and the inner cylinder wall cuts the annular magnet to generate magnetic induction lines. Vibration of the tower body caused by wind and waves is reduced, heaving energy of the platform is converted into electric energy, and the power generation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to a power generation mechanism in the field of ocean engineering, and particularly to a power generation mechanism driven by an anti-vibration floating buoy at sea. Background Art

[0002] In the context of the gradual depletion of global fossil energy and the increasingly severe environmental pollution problems, the demand for renewable energy globally shows a rapid growth. Ocean wind energy, as a member of the renewable energy family, is gradually becoming an important choice for energy transformation due to its clean and low-carbon characteristics. Offshore wind farms, due to their higher wind speeds and larger wind energy densities, have higher power generation efficiencies and energy output ratios compared to onshore wind power generation.

[0003] However, the construction and operation of offshore wind turbine generators face challenges brought about by the complex and changeable marine environment. The wind and waves in the ocean not only pose a threat to the structural safety of wind turbine generators but may also cause fatigue damage to the equipment due to the vibrations they induce, thereby affecting the power generation efficiency and the service life of the equipment. In addition, traditional offshore wind turbine generators have a slow adjustment response speed when facing wind direction changes and cannot quickly adapt to environmental changes, which directly affects the stability and efficiency of power generation.

[0004] To overcome these technical problems, there are currently various anti-vibration technologies and structural design solutions. Some studies have attempted to reduce the vibration of the tower by adding devices such as shock absorbers and dampers to wind turbine generators, but these devices often increase the complexity of the system and also raise the maintenance cost. There are also studies dedicated to improving the wind resistance of the tower by optimizing the shape and materials of the tower. Although certain effects have been achieved, there are still limitations in practical applications, especially under extreme weather conditions.

[0005] Meanwhile, as an emerging way of utilizing ocean energy, floating buoy power generation technology drives a power generation device through the movement of a floating buoy in water, converting ocean wave energy into electrical energy, showing great potential. However, there is still much room for improvement in the energy conversion efficiency and system stability of existing floating buoy power generation systems. Especially under strong winds and huge waves, how to effectively control the movement of the floating buoy and reduce its impact on the power generation system has become an urgent problem to be solved in the development of the technology. Summary of the Invention

[0006] Object of the Invention: Aiming at the deficiencies in the above-mentioned existing technologies, the present invention proposes a power generation mechanism driven by an anti-vibration floating buoy at sea. This power generation mechanism reduces the vibrations of the tower and the platform caused by wind and waves through the integration of an anti-vibration tower and a floating buoy power generation structure, improving the power generation efficiency; it also converts the heaving energy of the platform into electrical energy, while improving the power generation efficiency, maintaining the stability of the wind turbine generator in the marine environment.

[0007] Technical solution: The power generation mechanism driven by the anti-vibration floating drum of the present invention includes a fan tower body, a vibration damping device, a floating drum, a platform truss, and a connection structure with through holes. An annular groove is provided on the fan tower body, and balls are embedded in the annular groove. A cross bar is connected to the balls; the cross bar passes through the through hole and is connected to the connection structure.

[0008] The vibration damping device includes a housing, a connection assembly, and a vibration damping cross bar. A vibration damping vertical bar is connected to the vibration damping cross bar. A permanent magnet connected to the vibration damping vertical bar is suspended in the housing; electromagnets that generate magnetic repulsion with the permanent magnet are distributed on the inner wall of the housing; there is a steel wire cable between the connection assembly and the connection structure.

[0009] The floating drum includes an inner housing, a snap device, an inner bearing, a support structure, an outer barrel wall, and an inner barrel wall wound with a coil; an annular magnet is fixed on the support structure; the inner bearing is located within the support structure.

[0010] T-shaped grooves for snapping into the snap device are provided on the outer barrel wall and the side of the inner housing, and the outer barrel wall rotates around the inner housing through the snap device.

[0011] There are spiral blades on the outer side of the outer barrel wall. An adapter assembly and a large gear are connected to the inner side of the outer barrel wall. The large gear rotates synchronously with the outer barrel wall through the adapter assembly; a plurality of transmission gears are meshed with the large gear internally.

[0012] There is a groove at the bottom of the outer barrel wall. A bearing is connected between this groove and the bottom of the inner barrel wall; a small gear is connected to this bearing; the spiral blades drive the outer barrel wall and the large gear to rotate synchronously. The large gear drives the small gear and the inner barrel wall wound with a coil to rotate through the transmission gears, and the inner barrel wall cuts the magnetic induction lines generated by the annular magnet.

[0013] The connection assembly includes a first connector and a second connector. A connection hole for passing through the vibration damping cross bar is provided on the first connector, and a fixing hole for fixing the steel wire cable is provided on the second connector.

[0014] The adapter assembly includes an annular snap body, and the cross section of this snap body is rectangular. The large gear is fixed to the inner wall of the outer barrel wall of the floating drum through the adapter assembly.

[0015] Grooves for snapping into the annular snap body are provided on the inner side of the outer barrel wall and the outer side of the large gear.

[0016] The platform truss is located below the inner housing and is fixedly connected to the fan tower body, providing a stable support for the floating drum structure.

[0017] It also includes a gear connection structure for supporting the transmission gears. A circular groove is provided at the bottom of the transmission gears. The gear connection structure includes a support rod, and a protrusion for snapping into the circular groove is provided on this support rod.

[0018] In the direction perpendicular to the through hole of the connection structure, there is an inner wall, and guiding holes for connecting steel strands are provided on the inner wall.

[0019] The vibration damping device is installed on the platform truss to reduce the vibration of the wind turbine tower body, and the vibration of the tower body is reduced by controlling the magnetic repulsion force.

[0020] Fixing grooves are provided on the support structure, and the annular magnet passes through the fixing grooves to be connected with the support structure.

[0021] The buckle device is an annular structure with an I-shaped cross-section. This annular structure not only improves the strength of the buckle device but also optimizes the force distribution of the buckle device.

[0022] Working principle: The floating drum power generation mechanism of the present invention realizes anti-vibration and energy conversion power generation. The wind turbine tower body rotates automatically according to the wind direction, thereby reducing the vibration caused by wind force and waves; the built-in motor controls the rotation of the tower body to capture wind energy. The relative positions of the ball structures in the annular groove remain unchanged. The balls are embedded in the annular groove card slots, and the balls are connected to the crossbar and the small holes of the connection structure coaxially, ensuring that the steel strands will not twist due to the rotation of the tower body. The vibration damping device controls the repulsive force through a non-linear multi-stable device composed of an electromagnet and a permanent magnet, effectively reducing the vibration of the wind turbine. The spiral blades on the floating drum rotate as the platform heaves up and down, driving the rotation of the outer wall of the floating drum, and then driving the large gear and the small gear to increase the rotation speed. The small gear drives the bearing and the inner wall structure wound with coils to rotate, cutting the magnetic induction lines generated by the annular magnet inside the floating drum, and converting mechanical energy into electrical energy. The present invention reduces the vibration of the tower body caused by wind and waves through a non-linear multi-stable device composed of magnetic repulsion force, and at the same time converts the platform heaving energy into electrical energy, improving the power generation efficiency and the stability of the wind turbine.

[0023] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0024] (1) By setting an annular groove track and ball structures in the middle of the tower body, the present invention realizes that the relative positions of the balls remain unchanged when the tower body rotates, reduces the twisting of the steel strands, thereby increasing their service life, and reduces the vibration of the tower body caused by wind and waves, thus improving the stability and durability of the wind turbine generator set.

[0025] (2) The vibration damping device of the present invention reduces the vibration of the tower body caused by wind and waves through a non-linear multi-stable device composed of the magnetic repulsion force between the electromagnet and the permanent magnet, and transfers the force on the tower body to the shock absorption device through the steel strands, reducing the fatigue damage of the equipment caused by vibration, thereby reducing the maintenance cost and extending the service life of the equipment.

[0026] (3) In the present invention, the design of the spiral blades in the buoy enables the buoy to generate a rotational force when moving up and down in water. This design makes full use of the vertical movement of the waves, improving the conversion efficiency of wave energy into electrical energy. The coaxial design of the bearings, the inner wall structure wound with coils, and the small gears in the buoy power generation structure reduces mechanical wear, enhancing the reliability and long-term stability of the system. By cutting the magnetic induction lines generated by the annular magnet inside the buoy through the inner wall structure wound with coils, the energy of the platform's heaving is converted into electrical energy, not only improving the power generation efficiency but also enhancing the stability of the power generation mechanism.

[0027] (4) The anti-vibration and platform buoy power generation structure of the present invention has better economic benefits by improving the power generation efficiency and reducing the operating cost, making the offshore wind power project more valuable for investment. It reduces the impact on the environment and reduces the dependence on fossil energy by generating electricity using renewable wind energy and wave energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall structural schematic diagram of the anti-vibration offshore buoy power generation mechanism of the present invention;

[0029] Figure 2 is the middle structural schematic diagram of the anti-vibration offshore buoy power generation mechanism of the present invention;

[0030] Figure 3 is the schematic diagram of the ball structure of the present invention;

[0031] Figure 4 is the schematic diagram of the shock absorption device structure of the present invention;

[0032] Figure 5 is the cross-sectional structural schematic diagram of the shock absorption device of the present invention;

[0033] Figure 6 is the schematic diagram of the two connection structures of the present invention;

[0034] Figure 7 is the connection schematic diagram of the connection structure and the ball of the present invention;

[0035] Figure 8 is the connection schematic diagram of the connection structure and the shock absorption device of the present invention;

[0036] Figure 9 is the cross-sectional structural schematic diagram of the buoy of the present invention;

[0037] Figure 10 is the partial enlarged view of the buoy buckle device of the present invention;

[0038] Figure 11 is the partial enlarged view of the bottom gear and buckle of the buoy of the present invention;

[0039] Figure 12It is the top view of the buoy of the present invention;

[0040] Figure 13 It is the schematic diagram of the coil-wound structure on the second layer of the buoy of the present invention;

[0041] Figure 14 It is the schematic diagram of the cross-sectional structure of the innermost layer of the buoy of the present invention. Detailed implementation mode

[0042] Figures 1 to 14 In it: the tower body 1 of the wind turbine; the annular groove 2; the ball structure 3; the connection structure 4; the steel strand 5; the vibration damping device 6; the buoy 7; the buoy 8; the ball 3-1; the cross bar 3-2 of the ball; the inner wall 4-1 of the connection structure 4; the through hole 4-2 of the connection structure 4; the inner wall 6-1 for connecting the vibration damping device; the connection hole 6-2 of the vibration damping device; the vibration damping cross bar 6-3 of the vibration damping device; the vertical bar 6-4 of the vibration damping device; the electromagnet 6-5 on the inner wall of the vibration damping device; the permanent magnet 6-6; the inner shell 7-1 of the buoy; the inner bearing 7-2 of the buoy; the support structure 7-3 inside the buoy; the annular magnet 7-4 inside the buoy; the buckle device 7-5 of the buoy; the spiral blade 8-1; the outer barrel wall 8-2 of the buoy; the inner barrel wall 8-3 wound with coils; the bearing 8-4; the large gear 8-5; the transmission gear 8-6; the small gear 8-7; the connection gear structure 8-8; the connection component 8-9; the groove 8-10 at the bottom of the outer barrel wall.

[0043] As Figures 1 to 14 shown, the power generation mechanism driven by the anti-vibration buoy of the present invention on the sea includes the wind turbine tower body 1, the annular groove 2, the ball structure 3, the connection structure 4, the vibration damping device 6 and the steel strand 5. The ball structure 3 is composed of the ball 3-1 and the cross bar 3-2 connecting the balls. The ball 3-1 is nested in the card slot of the annular groove 2 and slides along the annular groove. One end of the cross bar 3-2 connecting the balls is rigidly connected to the ball 3-1, and the other end is inserted into the through hole 4-2 of the connection structure 4 through a coaxial pin to form a rotatable hinge. In this design, when the tower body 1 rotates, the ball 3-1 slides in the groove, and the cross bar 3-2 connecting the balls offsets the torsion through the rotational freedom of the through hole 4-2, ensuring that the steel strand 5 is always in a non-twisted state.

[0044] The vibration damping device 6 is installed on the platform truss and slows down the vibration of the tower body 1 by controlling the repulsive force, including a housing, a connection component and a vibration damping cross bar 6-3. The connection component includes a first connection piece and a second connection piece. The first connection piece is provided with a connection hole 6-2 passing through the vibration damping cross bar 6-3, and the second connection piece has a fixing hole for fixing the steel strand 5. The inner wall of the housing is equipped with electromagnets 6-5 on six sides, and a permanent magnet 6-6 is arranged in the middle to generate an adjustable magnetic repulsive force, and the vibration of the tower body 1 is controlled by the non-linear multi-stable device composed of them.

[0045] The shock-absorbing crossbar 6-3 of the shock-absorbing device is coaxially inserted into the shock-absorbing device connection hole 6-2. The shock-absorbing device vertical rod 6-4 is connected to the shock-absorbing crossbar 6-3 by welding, and the shock-absorbing device vertical rod 6-4 is connected to the middle permanent magnet block 6-6 by welding. The inner wall electromagnet 6-5 of the shock-absorbing device is welded and installed on the six sides of the inner wall, and interacts with the middle permanent magnet block 6-6 to generate magnetic repulsion force.

[0046] The wind turbine tower body 1 is the main support structure of the wind power generation unit, and is a tower body structure used to reduce the vibration caused by wind force and waves. The tower body 1 can automatically rotate according to the wind direction to maximize the capture of wind energy. The rotation of the wind turbine tower body 1 is controlled by a built-in motor. The motor is connected to the bottom of the tower body 1 through a transmission shaft, and the transmission shaft is connected to the rotating mechanism of the tower body 1 through a coupling. The motor automatically adjusts the orientation of the tower body 1 according to the signal provided by the wind direction sensor to maximize the capture of wind energy. This connection method not only ensures that the tower body 1 responds quickly according to the wind direction, but also improves the automation degree and power generation efficiency of the system to maximize the capture of wind energy.

[0047] The annular groove 2 is fixed in the middle of the tower body, and is used to guide and fix the position of the ball 3. The inner part of the annular groove 2 is designed with a card slot, and the ball 3-1 of the ball structure 3 is embedded in these card slots.

[0048] The ball 3-1 is embedded in the card slot of the annular groove track 2. The design of the card slot enables the ball 3-1 to slide freely along the track when the tower body 1 rotates, while keeping its original position in the track unchanged, so as to ensure that the connected steel strand 5 will not twist due to the rotation of the tower body 1. The ball 3-1 is welded to the ball connection crossbar 3-2, and the ball connection crossbar 3-2 is coaxially connected to the through hole 4-2 of the connection structure 4. This connection method ensures that the ball 3-1 will not deviate from its original position due to centrifugal force or friction during the rotation of the tower body 1, thereby reducing the torsion of the steel strand 5 and improving the stability and service life of the structure.

[0049] The steel strand 5 is a high-strength steel strand used to connect the ball 3 and the shock-absorbing device 6, and maintains its own stability while transmitting force.

[0050] The inner wall 4-1 of the connection structure 4 is connected to the steel strand 5. One end of the steel strand 5 is fixed to the guiding hole on the inner wall 4-1 of the connection structure 4 through a fastener nut. This connection method ensures that the steel strand 5 will not loosen or fall off during the process of transmitting force, and at the same time ensures the force transmission efficiency and stability. The connection structure 4 ensures that there is a rotatable adjustment at the connection with the ball 3-1, increasing the degree of freedom, ensuring that no additional force will occur, and improving the firmness and reliability of the connection.

[0051] The inner wall 6-1 of the shock-absorbing device is provided with a connection hole through which the steel strand 5 passes and is fixed by a fastening nut, maintaining its own stability while transmitting force. This connection method not only ensures the firm connection between the steel strand 5 and the shock-absorbing device 6, but also allows the shock-absorbing device 6 to respond flexibly when receiving the vibration force transmitted by the tower body 1. The shock-absorbing crossbar 6-3 of the shock-absorbing device is coaxially connected to the connection hole 6-2 of the shock-absorbing device, and then rotates to adapt to the dynamic changes of the wind turbine at different wind speeds, thus improving the stability and reliability of the system.

[0052] In this embodiment, the shock-absorbing crossbar 6-3 of the shock-absorbing device is firmly connected to the shock-absorbing vertical rod 6-4 by welding. The lower end of the vertical rod 6-4 is provided with a welding point, which is in close contact with the upper end of the permanent magnet 6-6, and the two are connected together by welding technology. This welding connection method not only ensures the structural stability between the vertical rod 6-4 and the permanent magnet 6-6, but also makes the entire shock-absorbing device 6 as a whole, and then responds to the vibration of the fan tower body 1.

[0053] In the shock-absorbing device 6, the electromagnets 6-5 on the inner wall are distributed on the six sides of the inner wall 6-1 where the shock-absorbing device is welded. When the electromagnets 6-5 are energized, they interact with the permanent magnet 6-6. This interaction is manifested as magnetic repulsion, and its magnitude is controlled by adjusting the current magnitude of the electromagnets 6-5. Therefore, the shock-absorbing device 6 generates adjustable magnetic repulsion by adjusting the current of the electromagnets 6-5 according to the vibration situation of the fan tower body 1, so as to achieve the suppression and shock absorption of the vibration of the fan tower body 1.

[0054] This structural design enables the shock-absorbing device 6 to respond to the vibration of the fan tower body 1. The electromagnets 6-5 on the inner wall of the shock-absorbing device 6 are closely attached to the inner wall of the device, and the magnetic force is adjusted according to needs to adapt to different degrees of vibration, thereby reducing the vibration of the fan.

[0055] When the fan rotates according to the wind direction, the ball structure 3 moves relative to the tower body 1 to ensure that the position of the steel strand 5 relative to the platform remains unchanged and prevent the steel strand 5 from twisting. The force generated by the vibration of the fan is transmitted to the shock-absorbing device 6 through the steel strand 5, and the nonlinear multi-stable device composed of magnetic repulsion is used to reduce the vibration of the fan. This design not only improves the stability of the fan, but also enhances its durability and reliability.

[0056] As Figure 1As shown, the three platform trusses are the supporting foundation of the entire buoy structure, located below the internal shell 7-1 of the buoy, and are welded and fixed to the tower body 1 to form a whole, providing stable support for the buoy structure. In this embodiment, the platform trusses are connected to the internal shell 7-1 of the buoy by welding, ensuring the stability and reliability of the buoy structure under the action of waves. This design not only provides a stable support for the buoy structure, but also enhances the adaptability and durability of the entire power generation system. The internal bearing 7-2 of the buoy is located in the center position, which is used to fix the internal support structure 7-3 of the buoy to ensure the stability and reliability of the structure. This central support design helps to disperse the load and enhance the durability of the structure.

[0057] The annular magnet 7-4 inside the buoy is fixed to the upper end of the support structure 7-3 inside the buoy by bolts. The upper end of the support structure 7-3 inside the buoy is provided with a fixing groove, and the annular magnet 7-4 is connected to the support structure 7-3 by bolts passing through the fixing groove. And after fixing, the stability is further strengthened by welding. This fixing method not only ensures the stable position of the annular magnet 7-4 inside the buoy, but also ensures that it generates stable magnetic flux lines during the power generation process, thereby improving the power generation efficiency. This is a key component in the power generation process. The magnetic flux lines it generates will be used to cut to generate electricity. This fixing method ensures the stable position of the magnet inside the buoy, thereby improving the power generation efficiency.

[0058] The spiral blade 8-1 is fixed on the outer cylinder wall 8-2 of the buoy, and its design enables the buoy to generate a rotational force when it moves up and down in the water. This design makes full use of the vertical movement of the waves and improves the efficiency of energy conversion. The outer cylinder wall 8-2 of the buoy is installed on the inner shell 7-1 of the buoy through the buoy buckle device 7-5. This design allows the outer cylinder wall 8-2 of the buoy to rotate around the fixed inner shell 7-1 of the buoy. This rotation mechanism enables the buoy to flexibly respond to wave changes and enhances the adaptability of the system.

[0059] like Figure 10 As shown, the buckle device 7-5 of the buoy is a key component for connecting the outer cylinder wall 8-2 of the buoy and the inner shell 7-1 of the buoy. The buckle body of the buckle device adopts an annular structure, and its cross section is an I-shaped. This structural design not only improves the strength of the buckle, but also optimizes the force distribution of the buckle device.

[0060] Half of the cross section of the clip device is embedded in the inner part of the outer cylinder wall 8-2 of the buoy, and the other half is welded to the inner side of the inner shell 7-1 of the buoy. Both the outer cylinder wall 8-2 of the buoy and the inner shell 7-1 of the buoy are designed with T-shaped grooves, and the I-shaped cross section of the clip fits closely with the corresponding part to ensure that the clip device fixes the outer cylinder wall and the inner shell.

[0061] In addition, the outer cylinder wall 8-2 of the buoy slides on the buckle device 7-5 of the buoy. This sliding design allows the outer cylinder wall 8-2 of the buoy to rotate around the inner shell 7-1 of the buoy. This structure not only ensures a firm connection between the outer cylinder wall of the buoy and the inner shell, but also endows the buoy structure with flexibility, thereby adapting to complex marine environments. Through this unique structural design, the buoy buckle device 7-5 not only achieves an efficient fixing function, but also takes into account the convenience of assembly and the reliability of the structure.

[0062] As Figures 11 to 13 shown, in this embodiment, the large gear 8-5 is fixed to the inner wall of the outer cylinder wall 8-2 of the buoy through the connection assembly 8-9. The buckle body has an annular structure with a rectangular cross-section. There are matching grooves on the inner side of the outer cylinder wall 8-2 of the buoy and the outer side of the large gear 8-5. One half is welded to the large gear 8-5 and the other half is welded to the outer cylinder wall 8-2 of the buoy. In this way, the rectangular cross-section firmly clamps the two structures together to form an integral body. The spiral blade 8-1 is welded to the outer side of the outer cylinder wall 8-2 of the buoy to make it an integral whole. In this way, when the spiral blade 8-1 moves up and down, its rotation drives the rotation of the outer cylinder wall 8-2 of the buoy due to the spiral structure. This fixing method ensures the synchronous movement between the gear and the cylinder wall, improving the efficiency of power transmission.

[0063] The bearing 8-4, the bottom of the inner wall structure 8-3 wound with coils, and the small gear 8-7 are coaxially connected and fixed without relative movement. The inner wall structure 8-3 is cylindrical, and its inner wall is evenly wound with coils. The two ends of the coils are led out through wires and connected to an external circuit. The bottom of the inner wall structure 8-3 wound with coils is connected to the bearing 8-4 by welding. The bearing 8-4 is also coaxially welded and fixed to the small gear 8-7. This design not only ensures that the inner wall structure 8-3 wound with coils stably cuts the magnetic induction lines generated by the annular magnet 7-4 inside the buoy during rotation for power generation, but also reduces mechanical wear, improving the reliability and power generation efficiency of the system. The bottom groove 8-10 is fixed at the center of the bottom of the outer cylinder wall 8-2 of the buoy. The bottom of the bearing 8-4 is embedded in the bottom circular groove 8-10, so that the bearing 8-4 can only rotate and cannot move in the four directions of the plane. This limitation ensures the stability and rotational freedom of the bearing 8-4, while also reducing the risk of damage caused by improper movement.

[0064] As Figure 13As shown, the connecting gear structure 8-8 is used to support and fix the transmission gear 8-6. The connecting gear structure is formed by welding three support structures on the outer side of the bearing 8-4, which are respectively used to support the three transmission gears 8-6. A circular groove is designed in the center of each transmission gear 8-6, which is then precisely engaged with the circular support of the connecting gear structure 8-8. This enables the three transmission gears 8-6 to rotate freely on the connecting gear structure 8-8. At the same time, through the cooperation of the circular groove and the support structure, the movement of the three transmission gears 8-6 in four directions on the plane is restricted. This constraint mechanism improves the stability and transmission efficiency of the gear system, ensuring the continuity and reliability of power transmission.

[0065] When the helical blade 8-1 moves up and down during the heaving of the platform, it rotates to drive the outer wall of the floating cylinder 8-2 to rotate, and then drives the large gear 8-5 to rotate. Through the three transmission gears 8-6, the power is transmitted to the small gear 8-7, accelerating its rotation speed. This speed increasing mechanism significantly improves the power generation efficiency. The high-speed rotation of the small gear 8-7 drives the bearing 8-4 to rotate at the same speed, and the bearing 8-4 then drives the inner wall structure 8-3 wound with coils to rotate at the same speed. The inner wall structure 8-3 wound with coils cuts the magnetic induction lines generated by the fixed annular magnet 7-4 inside the floating cylinder, converting mechanical energy into electrical energy. This energy conversion method utilizes the movement of the floating cylinder, improving the energy utilization efficiency. This process not only reduces the vibration caused by wind and waves, but also converts the heaving energy of the platform into electrical energy, improving the power generation efficiency while enhancing the stability of the system, providing an innovative solution for offshore wind power generation. While improving the energy conversion efficiency, it also protects the wind turbine generator by reducing vibration, extending the service life of the equipment. At the same time, the stability and adaptability of its structure enable the system to operate stably in harsh marine environments.

[0066] The working method of the power generation mechanism driven by the offshore anti-vibration floating cylinder of the present invention is as follows:

[0067] (1) An annular groove track 2 and a ball structure 3 are arranged in the middle of the tower body 1, realizing that the relative position of the balls 3-1 remains unchanged when the tower body 1 rotates, reducing the torsion of the steel strand 5 and thus increasing its service life, and reducing the vibration of the tower body 1 caused by wind and waves, thereby improving the stability and durability of the wind turbine generator.

[0068] (2) The steel strand 5 transfers the force on the tower body 1 to the shock absorption device 6. The shock absorption device 6 is a non-linear multi-stable device composed of an electromagnet 6-5 and a permanent magnet block 6-6. The electromagnet 6-5 is welded on the six sides of the inner wall of the shock absorption device, while the permanent magnet block 6-6 is located at the center of the device and is suspended. By adjusting the current intensity of the electromagnet 6-5, the magnetic field intensity generated by it can be dynamically changed, so as to generate an adjustable magnetic repulsion force with the permanent magnet block 6-6. The reason why this magnetic repulsion device exhibits non-linear characteristics is that the relationship between the magnetic force and the magnetic field intensity is not a linear relationship. According to the principle of electromagnetism, the magnitude of the magnetic force is proportional to the square of the magnetic field intensity. Therefore, when the current of the electromagnet 6-5 changes, the change of the magnetic force is non-linear. This non-linear characteristic enables the device to dynamically adjust the magnitude of the magnetic repulsion force according to different vibration amplitudes and frequencies, and the device has multi-stable characteristics. Under different external forces, the device remains stable in multiple equilibrium states. This is because the magnitude and direction of the magnetic repulsion force are precisely controlled by adjusting the current direction and intensity of the electromagnet 6-5. Thus, under different vibration conditions, the system selects the optimal equilibrium state to minimize vibration, thereby reducing the vibration of the fan, reducing the equipment fatigue damage caused by vibration, and thus reducing the maintenance cost and extending the service life of the equipment.

[0069] (3) The spiral blades 8-1 outside the floating barrel move up and down under the action of waves, capture wave energy and convert wave energy into mechanical energy, driving the outer barrel wall 8-2 of the floating barrel to rotate. The large gear 8-5 fixed on the inner wall of the outer barrel wall 8-2 rotates accordingly, and the connecting component 8-9 ensures the synchronous rotation of the gears. The rotation of the large gear 8-5 is transmitted to the small gear 8-7 through three transmission gears 8-6, realizing an increase in rotational speed. This speed increase mechanism improves the energy conversion efficiency. The high-speed rotation of the small gear 8-7 drives the coaxial bearing 8-4 and the inner wall structure 8-3 wrapped with coils to rotate. The inner wall structure 8-3 wrapped with coils cuts the magnetic induction lines generated by the annular magnet 7-4 inside the floating barrel, converting mechanical energy into electrical energy.

[0070] The inner shell 7-1 and the inner support structure 7-3 inside the floating barrel provide stable support. The bearings 7-2 and the buckle device 7-5 ensure the stability and adaptability of the floating barrel structure in waves, reducing vibrations caused by wind and waves. The bearing 8-4, the inner wall structure 8-3 wrapped with coils, and the small gear 8-7 are connected coaxially, ensuring the accuracy and efficiency of power transmission, reducing mechanical wear, and extending the service life of the equipment. The bottom of the bearing 8-4 is embedded in the bottom groove 8-10, enabling the bearing 8-4 to only rotate, enhancing the structural stability. The connecting gear structure 8-8 fixes the three transmission gears 8-6 and the small gear 8-7, improving the stability and transmission efficiency of the gear system, and ensuring the continuity and reliability of power transmission.

Claims

1. An offshore vibration-resistant buoy-driven power generation mechanism, characterized in that: The wind turbine tower (1) comprises a wind turbine tower body (1), a vibration damping device (6), a buoy (7), a platform truss, and a connecting structure (4) with a through hole (4-2); the wind turbine tower body (1) is provided with an annular groove (2), a ball (3-1) is embedded in the annular groove (2), and a cross bar (3-2) is connected to the ball (3-1); the cross bar (3-2) passes through the through hole (4-2) and is connected to the connecting structure (4); The vibration damping device (6) comprises a shell, a connecting assembly and a vibration damping cross bar (6-3); the vibration damping cross bar (6-3) is connected to a vibration damping vertical bar (6-4); a permanent magnet (6-6) connected to the vibration damping vertical bar (6-4) is suspended in the shell; an electromagnet (6-5) generating magnetic repulsion with the permanent magnet (6-6) is distributed on the inner wall of the shell; and a steel strand (5) is provided between the connecting assembly and the connecting structure (4); The buoy (7) comprises an internal shell (7-1), a snap-fit ​​device (7-5), an internal bearing (7-2), a support structure (7-3), an outer cylinder wall (8-2), and an inner cylinder wall (8-3) wound with a coil; an annular magnet (7-4) is fixed on the support structure (7-3); the internal bearing (7-2) is located inside the support structure (7-3); The outer cylinder wall (8-2) and the side surface of the inner shell (7-1) are provided with a T-shaped groove which is inserted into the buckle device (7-5); the outer cylinder wall (8-2) rotates around the inner shell (7-1) through the buckle device (7-5); The outer side of the outer cylinder wall (8-2) is provided with a spiral blade (8-1); the inner side of the outer cylinder wall (8-2) is connected with a connection assembly (8-9) and a large gear (8-5); the large gear (8-5) rotates synchronously with the outer cylinder wall (8-2) through the connection assembly (8-9); the large gear (8-5) is meshingly connected with a plurality of transmission gears (8-6); The bottom of the outer cylinder wall (8-2) is provided with a groove (8-10), and a bearing (8-4) is connected between the groove (8-10) and the bottom of the inner cylinder wall (8-3); a small gear (8-7) is connected to the bearing (8-4); the spiral blade (8-1) drives the outer cylinder wall (8-2) and the large gear (8-5) to rotate synchronously, and the large gear (8-5) drives the small gear (8-7) and the inner cylinder wall (8-3) wound with a coil to rotate through a transmission gear (8-6), and the inner cylinder wall (8-3) cuts the annular magnet (7-4) to generate magnetic flux lines.

2. The offshore vibration-resistant buoy-driven power generation mechanism according to claim 1, characterized in that: The connection assembly comprises a first connection member and a second connection member, the first connection member is provided with a connection hole (6-2) for passing through the vibration-absorbing cross bar (6-3), and the second connection member is provided with a fixing hole for fixing the steel strand (5).

3. The offshore vibration-resistant buoy-driven power generation mechanism according to claim 1, characterized in that: The connection assembly comprises an annular buckle body, and the cross section of the buckle body is rectangular.

4. The offshore vibration-resistant buoy-driven power generation mechanism according to claim 2, characterized in that: The inner side of the outer cylinder wall (8-2) and the outer side of the large gear (8-5) are provided with grooves for snapping into the annular buckle body.

5. The offshore vibration-resistant buoy-driven power generation mechanism according to claim 1, characterized in that: The platform truss is located below the internal shell (7-1) and is fixedly connected to the wind turbine tower (1).

6. The offshore vibration-resistant buoy-driven power generation mechanism according to claim 1, characterized in that: It also includes a gear connection structure (8-8) that supports the transmission gear (8-6), wherein a circular groove is formed at the bottom of the transmission gear (8-6), and the gear connection structure (8-8) includes a support rod, wherein a protrusion that is inserted into the circular groove is formed on the support rod.

7. The offshore vibration-resistant buoy-driven power generation mechanism according to claim 1, characterized in that: The through hole (4-2) of the connection structure (4) has an inner wall (4-1) in a vertical direction, and a guide hole for connecting the steel strand (5) is provided on the inner wall (4-1).

8. The offshore vibration-resistant buoy-driven power generation mechanism according to claim 1, characterized in that: The vibration damping device (6) is installed on the platform truss to reduce vibration of the wind turbine tower (1).

9. The offshore vibration-resistant buoy-driven power generation mechanism according to claim 1, characterized in that: The support structure (7-3) is provided with a fixing groove, and the annular magnet (7-4) passes through the fixing groove and is connected to the support structure (7-3).

10. The offshore vibration-resistant buoy-driven power generation mechanism according to claim 1, characterized in that: The buckle device (7-5) is a ring-shaped structure with an I-shaped cross section.

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