Wind power generation tower with inner supporting device

The internal support device stabilizes the wind power generation tower by connecting it to the wind turbine foundation and absorbing vibrations, addressing issues of limited bonding strength and poor shock absorption, ensuring stable operation.

CN119122747AInactive Publication Date: 2024-12-13HUNAN ELECTRICAL COLLEGE OF TECH

Patent Information

Application Number
CN202411622283.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2024-12-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing wind power generation systems face issues with limited bonding strength between the tower and wind turbine foundation, leading to gaps that can cause the tower to topple under large horizontal wind loads, and poor shock absorption, affecting normal operation.

Method used

An internal support device is introduced, comprising a bearing block, mounting ring, vibration-damping support, and hydraulic cylinder, which stabilizes the tower by connecting it to the wind turbine foundation, absorbs vibrations, and enhances the connection strength through multi-point support.

Benefits of technology

The internal support device enhances the stability of the tower by limiting the bottom end, absorbing vibrations, and preventing excessive shaking, thereby preventing the tower from tipping over and ensuring stable operation.

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Abstract

The invention discloses a wind power generation tower with an inner supporting device, and relates to the technical field of wind power generation, the wind power generation tower comprises a cabin, the cabin is used for protecting and placing a fan unit, a wheel shaft is fixedly mounted at the output end of the cabin, and blades are rotatably mounted on the outer surface of the wheel shaft; the inner supporting assembly is used for stable protection of the bottom of the wind power generation tower, and the top of the inner supporting assembly is sleeved with a tower barrel; and the fan foundation is used for reinforcing and supporting the bottom of the wind power generation tower. According to the wind power generation tower with the inner supporting device, the mounting ring is positioned through the bearing block and the positioning base, so that the mounting ring is connected with the bottom base, the mounting ring is arranged on the outer side of the bottom of the tower barrel in a sleeving mode, and at the moment, a top supporting rod set arranged at the top of the vibration reduction supporting piece and a side attaching piece are attached to the inner wall of the tower barrel to limit and reinforce the bottom end of the tower barrel; therefore, the supporting stability of the bottom end of the tower drum is enhanced.
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Description

Technical Field

[0001] The invention relates to the technical field of wind power generation, in particular to a wind power generation tower with an internal supporting device. Background Art

[0002] Wind energy is the cleanest and renewable green energy. It is widely distributed and has abundant resources. The utilization of wind energy has developed rapidly, especially the prospects for wind power generation are very broad. As an important part of wind farm construction, the wind turbine foundation is not only related to the safe and reliable operation of the wind farm, but also affects the return on investment of the wind farm. The wind turbine foundation is a reinforced concrete structure used to fix the wind turbine. It not only bears the weight of the wind turbine and the wind turbine tower, but also resists the overturning wind load of the wind turbine to ensure the safe operation of the wind turbine under various loads.

[0003] At present, the existing wind power generation equipment uses two different materials for the tower and the wind turbine foundation, and the bonding strength is limited and the combination is not tight enough. When encountering a large horizontal wind load, the gap will gradually develop from the top to the bottom. As the gap develops, it may cause the tower to topple in serious cases. In addition, as the gap develops, the amplitude of the tower itself increases, and the shock absorbing effect of the tower is poor, which makes the wind turbine unit unable to operate normally. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A wind power generation tower with an internal support device includes a nacelle, the nacelle is used for protecting and placing a wind turbine unit, an output end of the nacelle is fixedly mounted with a wheel shaft, and the outer surface of the wheel shaft is rotatably mounted with blades; An inner support assembly, which is used for stabilizing and protecting the bottom of a wind power tower, and a tower barrel is sleeved on the top of the inner support assembly; Wind turbine foundation, which is used to reinforce the bottom of the wind power tower; The tower is fixedly installed at the bottom of the cabin, the inner support assembly is fixedly installed inside the cylinder cavity of the tower, and the inner support assembly is fixedly installed at the top middle of the wind turbine foundation; the wind turbine unit and blades are both installed at the top of the tower. When the wind turbine is in operation, the wind load drives the blades to rotate the wheel shaft to convert wind energy. Since the tower and the wind turbine foundation are made of two different materials, their bonding strength is limited. When encountering a large horizontal wind load, the gap will gradually develop from top to bottom. As the gap develops, it may cause the tower to topple over in severe cases. Therefore, an inner support assembly is provided between the tower and the wind turbine foundation to support the inside of the tower.

[0005] The inner support assembly includes a bearing block, a mounting ring is fixedly installed on the top of the bearing block, a positioning seat is fixedly installed in the middle of the inner part of the bearing block, a vibration-damping support is fixedly installed in the middle of the top of the positioning seat, a top support rod group is fixedly installed inside the vibration-damping support, and side stickers are fixedly installed on both sides of the outer surface of the vibration-damping support. The bearing block and the positioning seat position the mounting ring so that the mounting ring is connected to the bottom base, and the mounting ring is sleeved on the outer side of the bottom of the tower. At this time, the top support rod group and the side stickers set on the top of the vibration-damping support are both attached to the inner wall of the tower, and the bottom end of the tower is limited and reinforced, thereby enhancing the stability of the bottom end of the tower when supporting.

[0006] Preferably, the bearing block is fixedly mounted on the top of the wind turbine foundation, the mounting ring is sleeved on the outer surface of the tower, and the top support rod group and the side fittings are both adapted to the inner wall of the tower.

[0007] Preferably, the vibration-damping support comprises a positioning plate, the positioning plate is fixedly mounted on the top of the positioning seat, a connecting plate is fixedly mounted on the top of the positioning plate, extension frames are fixedly mounted on both sides of the top of the connection plate, clamping rings and bent blocks are fixedly mounted on the top of the extension frames, and patches are fixedly mounted on the outer surfaces of the clamping rings and bent blocks. The positioning plate is connected to the positioning seat, and the vibration-damping support is arranged in the middle of the interior of the tower, and the clamping rings and bent blocks on the top of the extension frame clamp and fix the top support rod group. When the tower is subjected to horizontal wind load, since the tower is a hollow tubular column structure, the wind load blowing on the tower will cause vibration in its cavity. At this time, the vibration generated inside the tower is transmitted to the clamping block through the top support rod group through the patch. The hollow cover arranged at the bottom of the clamping block is made of curved arc-shaped flexible material, which can absorb the vibration inside the tower, thereby reducing the vibration frequency inside the tower and avoiding the loosening of the connection between the tower and the wind turbine foundation due to vibration.

[0008] Preferably, a clamping block is fixedly installed on the top of the clamping ring bending block, and a hollow cover is fixedly installed on the bottom of the clamping block. The hollow cover is arranged on both sides of the outer surface of the extension frame, and the bottom of the hollow cover is adapted to the side of the outer surface of the positioning plate.

[0009] Preferably, the top support rod group includes a top block, a support rod is fixedly mounted on the outer surface of the top block, four support rods are provided, and the four support rods are symmetrically arranged with the top block as the center, a round seat is fixedly mounted on the bottom of the top block, and a clamping ring is fixedly mounted on the bottom of the round seat. The round seat and the clamping ring are respectively clamped on the inner wall of the clamping block and the patch, and the support rod extends outward through the round seat to abut against the inner wall of the tower, and transmits the vibration generated inside the tower to the round seat through the support rod, so as to facilitate the amplitude conduction in the tower, and the top support rod group is balanced and supported on the inner wall of the tower cavity through the cross-arranged support rods.

[0010] Preferably, the top block is fixedly mounted on the top of the clamping block, the support rod is matched with the inner wall of the tower, and the round seat and the clamping ring are respectively clamped between the opposite surfaces of the clamping block and the patch.

[0011] Preferably, the side fittings include extended side panels, which are fixedly mounted on both sides of the outer surface of the clamping block, and two extended side panels are provided, which are symmetrically arranged with the top block as the center, and connecting pieces are fixedly mounted on both sides of the outer surface of the extended side panels, and curved pieces are fixedly mounted on the outer surface of the connecting pieces, and a coated curved plate is fixedly mounted on the outer surface of the curved pieces, and the coated curved plate abuts against the inner wall of the tower. The extended side panels are connected to both sides of the hollow cover, and when the hollow cover absorbs vibration and generates vibration, the coated curved plates abutting against the inner wall of the tower on both sides are subjected to vibration and are squeezed against the inner wall of the tower, so that the curved pieces and the coated curved plates are deformed between the inner wall of the tower and the extended side panels as the vibration occurs, while the two sides of the vibration-damping support are stably protected, and the contact area with the inside of the tower is increased, thereby sharing the vibration inside the tower, increasing the stability of the tower, and avoiding the overturning of the tower due to excessive shaking frequency.

[0012] Preferably, the wind turbine foundation includes a base, a hydraulic cylinder is fixedly installed at the bottom of the inner cavity of the base, a stabilizing support sticker is movably installed at the top of the hydraulic cylinder, a positioning ring plate is fixedly installed at the top of the stabilizing support sticker, and the positioning ring plate is fixedly installed at the bottom of the bearing block. The hydraulic cylinder is arranged inside the wind turbine foundation, and when the wind power tower is in operation, the hydraulic cylinder is lifted upward, so that the stabilizing support sticker is lifted upward with the hydraulic cylinder and fits inside the base to reinforce the wind turbine foundation, and the lifted stabilizing support sticker is adapted to the internal support assembly, so that the internal support assembly and the tower are more tightly combined to avoid the gap at the connection of the tower becoming larger and causing the tower to loosen.

[0013] Preferably, the stabilizing component includes a hydraulic rod, which is fixedly connected to the axis of the hydraulic cylinder, and a slip ring is sleeved on the outer surface of the hydraulic rod, a hinge plate is rotatably mounted on the outer surface of the slip ring, and a bonding plate is fixedly mounted on the outer surface of the hinge plate, and the bonding plate is adapted to the inner wall of the base. The hydraulic cylinder drives the hydraulic rod to lift upward, so that the slip ring slides on the surface of the hydraulic rod and drives the hinge plate and the bonding plate to extend on the surface of the slip ring until they are in contact with the inner wall of the base. At this time, the three groups of bonding plates are stably supported inside the base in a three-point shape, so that the base is supported at multiple points for reinforcement.

[0014] Preferably, the surface of the hydraulic rod away from the end of the hydraulic cylinder is movably mounted with a center axis, the center axis is fixedly mounted in the middle of the inner part of the positioning ring plate, and the center axis passes through the bearing block and extends to the bottom of the positioning seat, and the outer surface of the center axis is fixedly mounted with a connecting plate, and the connecting plate is rotatably connected with the fitting plate. The center axis is arranged at the bottom of the positioning seat to support the positioning seat so that the positioning seat is abutted against the bottom of the tower, so as to improve the tightness of the connection between the mounting ring and the tower.

[0015] The present invention provides a wind power generation tower with an internal support device. It has the following beneficial effects: 1. The wind power generation tower with an internal support device positions the mounting ring through the bearing block and the positioning seat, so that the mounting ring is connected to the bottom base, and the mounting ring is sleeved on the bottom outer side of the tower. At this time, the top support rod group and the side parts arranged on the top of the vibration-damping support are both attached to the inner wall of the tower, and the bottom end of the tower is limited and reinforced, thereby enhancing the stability of the bottom end of the tower when supported.

[0016] 2. The wind power generation tower with an internal support device is connected to the positioning seat through a positioning plate, and the vibration-damping support is arranged in the middle of the interior of the tower. The clamping ring bent block on the top of the extension frame clamps and fixes the top support rod group. When the tower is subjected to the effect of horizontal wind load, since the tower is a hollow tubular column structure, the wind load blowing on the tower will cause vibration in its cavity. At this time, the vibration generated inside the tower is transmitted to the clamping block through the top support rod group through the patch. The hollow cover arranged at the bottom of the clamping block is made of curved arc-shaped flexible material, which can absorb the vibration in the tower, thereby reducing the vibration frequency in the tower and avoiding the loosening of the connection between the tower and the wind turbine foundation due to vibration.

[0017] 3. The wind power generation tower with an internal support device is respectively clamped on the inner walls of the clamping block and the patch through a round seat and a clamping ring. The support rod extends outward through the round seat to abut against the inner wall of the tower, and transmits the vibration generated inside the tower to the round seat through the support rod to facilitate the amplitude conduction in the tower, and the top support rod group is balanced and supported on the inner wall of the tower cavity through the cross-arranged support rods.

[0018] Fourth, the wind power generation tower with an internal support device is connected to the two sides of the hollow cover by extending the side plates. When the hollow cover absorbs vibration and generates shaking, the coated curved plates on both sides that are against the inner wall of the tower are shaken and squeezed against the inner wall of the tower, so that the curved plates and the coated curved plates are deformed between the inner wall of the tower and the extended side plates as the shaking occurs. While the two sides of the vibration-damping support are stably protected, the contact area with the inside of the tower is increased, thereby sharing the vibration in the tower, increasing the stability of the tower, and avoiding the tower from tipping over due to excessive shaking frequency.

[0019] 5. The wind power tower with an internal support device drives the hydraulic rod to lift upward through the hydraulic cylinder, so that the slip ring slides on the surface of the hydraulic rod and drives the hinge plate and the bonding plate to extend on the surface of the slip ring until they are in contact with the inner wall of the base. At this time, the three groups of bonding plates are stably supported in the shape of three points inside the base, achieving multi-point support for the base for reinforced support. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the external structure of a wind power generation tower with an internal support device according to the present invention; Figure 2 This is a schematic diagram of the connection structure between the wind turbine foundation and the tower of the present invention; Figure 3 This is a schematic diagram of the connection structure between the fan foundation and the inner support assembly of the present invention; Figure 4 This is a schematic diagram of the structure of the inner support assembly of the present invention; Figure 5 It is a schematic diagram of the connection structure between the vibration-damping support member and the top support rod group of the present invention; Figure 6 It is a schematic diagram of the structure of the top support rod group of the present invention; Figure 7 It is a schematic diagram of the structure of the vibration-damping support member of the present invention; Figure 8 It is a schematic diagram of the structure of the side sticker of the present invention; Fig. 9 It is a schematic diagram of the internal cross-sectional structure of the fan foundation of the present invention; Fig.10 It is a schematic diagram of the structure of the stabilizing patch of the present invention.

[0021] In the figure: 1, axle; 2, blades; 3, fan foundation; 31, base; 32, stabilizing support; 321, hinge plate; 322, bonding plate; 323, slip ring; 324, hydraulic rod; 325, connecting plate; 326, center axis; 33, hydraulic cylinder; 34, positioning ring plate; 4, inner support assembly; 41, top support rod group; 411, top block; 412, support rod; 413, round seat; 414, clamp Ring; 42, bearing block; 43, mounting ring; 44, positioning seat; 45, vibration-damping support; 451, hollow cover; 452, connecting plate; 453, positioning plate; 454, extension frame; 455, patch; 456, clamping ring bent block; 457, clamping block; 46, side patch; 461, extended side plate; 462, covered bent plate; 463, connecting piece; 464, curved piece; 5, tower; 6, cabin. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0023] The first embodiment, as Figure 1 to Figure 2 As shown, the present invention provides a technical solution: a wind power generation tower with an internal support device, comprising a nacelle 6, the nacelle 6 is used for protecting and placing a wind turbine unit, an output end of the nacelle 6 is fixedly mounted with a wheel shaft 1, and the outer surface of the wheel shaft 1 is rotatably mounted with blades 2; An inner support assembly 4, which is used for stabilizing and protecting the bottom of the wind power tower, and a tower barrel 5 is sleeved on the top of the inner support assembly 4; A wind turbine foundation 3, which is used to reinforce the bottom of the wind power tower; The tower 5 is fixedly installed at the bottom of the nacelle 6, the internal support assembly 4 is fixedly installed inside the cylinder cavity of the tower 5, and the internal support assembly 4 is fixedly installed in the middle of the top of the wind turbine foundation 3; the wind turbine unit and the blades 2 are both installed at the top of the tower 5. When the wind turbine is in operation, the wind load blows the blades 2 to drive the wheel shaft 1 to rotate, thereby converting wind energy. Since the tower 5 and the wind turbine foundation 3 are made of two different materials, their bonding strength is limited. When encountering a large horizontal wind load, the gap between them will gradually develop from the top to the bottom. As the gap develops, it may cause the tower to topple over in severe cases. Therefore, an internal support assembly 4 is arranged between the tower 5 and the wind turbine foundation 3 to support the inside of the tower 5.

[0024] The second embodiment is based on the first embodiment. Figures 3 to 8 As shown, the inner support assembly 4 includes a bearing block 42, a mounting ring 43 is fixedly installed on the top of the bearing block 42, a positioning seat 44 is fixedly installed in the middle of the inner part of the bearing block 42, a vibration-damping support 45 is fixedly installed in the middle of the top of the positioning seat 44, a top support rod group 41 is fixedly installed inside the vibration-damping support 45, and side stickers 46 are fixedly installed on both sides of the outer surface of the vibration-damping support 45. The bearing block 42 and the positioning seat 44 position the mounting ring 43 so that the mounting ring 43 is connected to the bottom base 31, and the mounting ring 43 is sleeved on the outer side of the bottom of the tower 5. At this time, the top support rod group 41 and the side stickers 46 set on the top of the vibration-damping support 45 are both attached to the inner wall of the tower 5, and the bottom end of the tower is limited and reinforced, thereby enhancing the stability of the tower bottom when supporting.

[0025] The bearing block 42 is fixedly mounted on the top of the wind turbine foundation 3 , the mounting ring 43 is sleeved on the outer surface of the tower 5 , and the top support rod group 41 and the side fittings 46 are both matched with the inner wall of the tower 5 .

[0026] The vibration-damping support 45 includes a positioning plate 453, which is fixedly mounted on the top of the positioning seat 44. A connecting plate 452 is fixedly mounted on the top of the positioning plate 453. Extension frames 454 are fixedly mounted on both sides of the top of the connecting plate 452. A clamping ring bent block 456 is fixedly mounted on the top of the extension frame 454. A patch 455 is fixedly mounted on the outer surface of the clamping ring bent block 456. The positioning plate 453 is connected to the positioning seat 44, and the vibration-damping support 45 is set in the middle of the tower 5. The clamping ring bend block 456 on the top of the extension frame 454 clamps and fixes the top support rod group 41. When the tower 5 is subjected to the effect of horizontal wind load, since the tower 5 is a hollow tubular column structure, the wind load blowing on the tower 5 will cause vibration in its cavity. At this time, the vibration generated inside the tower 5 is transmitted to the clamping block 457 through the top support rod group 41 through the patch 455. The hollow cover 451 set at the bottom of the clamping block 457 is a curved arc-shaped flexible material, which can absorb the vibration inside the tower 5, thereby reducing the vibration frequency inside the tower 5 and avoiding the loosening of the connection between the tower 5 and the wind turbine foundation 3 due to vibration.

[0027] A clamping block 457 is fixedly installed on the top of the clamping ring bending block 456, and a hollow cover 451 is fixedly installed on the bottom of the clamping block 457. The hollow cover 451 is arranged on both sides of the outer surface of the extension frame 454, and the bottom of the hollow cover 451 is adapted to the side of the outer surface of the positioning plate 453.

[0028] The top support rod group 41 includes a top block 411, and a support rod 412 is fixedly installed on the outer surface of the top block 411. There are four support rods 412, and the four support rods 412 are symmetrically arranged with the top block 411 as the center. A round seat 413 is fixedly installed at the bottom of the top block 411, and a clamping ring 414 is fixedly installed at the bottom of the round seat 413. The round seat 413 and the clamping ring 414 are respectively clamped on the inner wall of the clamping block 457 and the patch 455. The support rod 412 extends outward through the round seat 413 to abut against the inner wall of the tower 5, and transmits the vibration generated inside the tower 5 to the round seat 413 through the support rod 412, so as to facilitate the amplitude transmission in the tower 5, and the top support rod group 41 is balanced and supported on the inner wall of the cavity of the tower 5 through the cross-arranged support rods 412.

[0029] The top block 411 is fixedly mounted on the top of the clamping block 457 , the support rod 412 is matched with the inner wall of the tower 5 , and the round seat 413 and the clamping ring 414 are respectively clamped between the opposite surfaces of the clamping block 457 and the patch 455 .

[0030] The side fitting 46 includes an extended side panel 461, which is fixedly mounted on both sides of the outer surface of the clamping block 457. Two extended side panels 461 are provided, and the two extended side panels 461 are symmetrically arranged with the top block 411 as the center. Connecting pieces 463 are fixedly mounted on both sides of the outer surface of the extended side panel 461, and a curved piece 464 is fixedly mounted on the outer surface of the connecting piece 463. A coated curved plate 462 is fixedly mounted on the outer surface of the curved piece 464, and the coated curved plate 462 is abutted against the inner wall of the tower 5. The extended side panel 461 is connected to both sides of the hollow cover 451. When the hollow cover 451 absorbs vibration and generates shaking, the covered bent plates 462 on both sides that are against the inner wall of the tower 5 are shaken and squeezed against the inner wall of the tower 5, so that the curved pieces 464 and the covered bent plates 462 are deformed between the inner wall of the tower 5 and the extended side panels 461 as the shaking occurs. While providing stable protection for both sides of the vibration-damping support 45, the contact area with the inside of the tower 5 is increased, thereby sharing the vibration inside the tower 5, increasing the stability of the tower 5, and preventing the tower 5 from tipping over due to excessive shaking frequency.

[0031] The third embodiment is based on the first and second embodiments. Figures 9 and 10 As shown, the wind turbine foundation 3 includes a base 31, a hydraulic cylinder 33 is fixedly installed at the bottom of the inner cavity of the base 31, a stabilizing support sticker 32 is movably installed on the top of the hydraulic cylinder 33, a positioning ring plate 34 is fixedly installed on the top of the stabilizing support sticker 32, and the positioning ring plate 34 is fixedly installed on the bottom of the bearing block 42. The hydraulic cylinder 33 is arranged inside the wind turbine foundation 3, and when the wind power tower is running, the hydraulic cylinder 33 is lifted upward, so that the stabilizing support sticker 32 is pushed upward with the hydraulic cylinder 33 and fits inside the base 31, so as to reinforce the wind turbine foundation 3, and the lifted stabilizing support sticker 32 is adapted to the inner support assembly 4, so that the inner support assembly 4 and the tower 5 are more tightly combined, so as to avoid the gap at the connection of the tower 5 becoming larger and causing the tower 5 to loosen.

[0032] The stabilizing member 32 includes a hydraulic rod 324, which is fixedly connected to the axis of the hydraulic cylinder 33. A slip ring 323 is sleeved on the outer surface of the hydraulic rod 324, and a hinge plate 321 is rotatably mounted on the outer surface of the slip ring 323. A bonding plate 322 is fixedly mounted on the outer surface of the hinge plate 321, and the bonding plate 322 is adapted to the inner wall of the base 31. The hydraulic cylinder 33 drives the hydraulic rod 324 to lift upward, so that the slip ring 323 slides on the surface of the hydraulic rod 324 and drives the hinge plate 321 and the bonding plate 322 to extend on the surface of the slip ring 323 until they are in contact with the inner wall of the base 31. At this time, the three groups of bonding plates 322 are stably supported in the interior of the base 31 in a three-point shape, so that the base 31 is supported at multiple points for reinforcement.

[0033] A median shaft 326 is movably mounted on the surface of the hydraulic rod 324 away from the end of the hydraulic cylinder 33. The median shaft 326 is fixedly mounted in the middle of the inner part of the positioning ring plate 34, and the median shaft 326 penetrates the bearing block 42 and extends to the bottom of the positioning seat 44. A connecting plate 325 is fixedly mounted on the outer surface of the median shaft 326, and the connecting plate 325 is rotatably connected to the fitting plate 322. The median shaft 326 is arranged at the bottom of the positioning seat 44 to support the positioning seat 44 so that the positioning seat 44 is abutted against the bottom of the tower 5, so as to improve the tightness of the connection between the mounting ring 43 and the tower 5.

[0034] When in use, the fan unit and blades 2 are installed on the top of the tower 5. When the wind turbine is in operation, the wind load drives the blades 2 to drive the wheel shaft 1 to rotate, thereby converting wind energy. Since the tower 5 and the fan foundation 3 are made of two different materials, their bonding strength is limited. Under the action of a large horizontal wind load, the gap between them will gradually develop from top to bottom. As the gap develops, it may cause the tower to topple over in severe cases. Therefore, an internal support assembly 4 is provided between the tower 5 and the fan foundation 3 to support the interior of the tower 5.

[0035] The bearing block 42 and the positioning seat 44 position the mounting ring 43 so that the mounting ring 43 is connected to the bottom base 31. The mounting ring 43 is sleeved on the bottom outer side of the tower 5. At this time, the top support rod group 41 and the side sticking member 46 arranged on the top of the vibration-damping support 45 are both attached to the inner wall of the tower 5, and the bottom end of the tower is limited and reinforced, thereby enhancing the stability of the bottom end of the tower when supporting.

[0036] The positioning plate 453 is connected to the positioning seat 44, and the vibration-damping support 45 is set in the middle of the tower 5. The clamping ring bend block 456 on the top of the extension frame 454 clamps and fixes the top support rod group 41. When the tower 5 is subjected to the effect of horizontal wind load, since the tower 5 is a hollow tubular column structure, the wind load blowing on the tower 5 will cause vibration in its cavity. At this time, the vibration generated inside the tower 5 is transmitted to the clamping block 457 through the top support rod group 41 through the patch 455. The hollow cover 451 set at the bottom of the clamping block 457 is a curved arc-shaped flexible material, which can absorb the vibration inside the tower 5, thereby reducing the vibration frequency inside the tower 5 and avoiding the loosening of the connection between the tower 5 and the wind turbine foundation 3 due to vibration.

[0037] The round seat 413 and the clamping ring 414 are respectively clamped on the inner walls of the clamping block 457 and the patch 455, and the support rod 412 extends outward through the round seat 413 to abut against the inner wall of the tower 5, and transmits the vibration generated inside the tower 5 to the round seat 413 through the support rod 412, so as to facilitate the amplitude conduction in the tower 5, and the top support rod group 41 is balanced and supported on the inner wall of the cavity of the tower 5 through the cross-arranged support rods 412.

[0038] The extended side panel 461 is connected to both sides of the hollow cover 451. When the hollow cover 451 absorbs vibration and generates shaking, the covered bent plates 462 on both sides that are against the inner wall of the tower 5 are shaken and squeezed against the inner wall of the tower 5, so that the curved pieces 464 and the covered bent plates 462 are deformed between the inner wall of the tower 5 and the extended side panels 461 as the shaking occurs. While providing stable protection for both sides of the vibration-damping support 45, the contact area with the inside of the tower 5 is increased, thereby sharing the vibration inside the tower 5, increasing the stability of the tower 5, and preventing the tower 5 from tipping over due to excessive shaking frequency.

[0039] The hydraulic cylinder 33 is arranged inside the wind turbine foundation 3. When the wind power tower is running, the hydraulic cylinder 33 is lifted upward, so that the stabilizing sticker 32 is pushed upward with the hydraulic cylinder 33 and fits inside the base 31 to reinforce the wind turbine foundation 3, and the lifted stabilizing sticker 32 is adapted to the inner support component 4, so that the inner support component 4 and the tower 5 are more tightly combined, avoiding the gap at the connection of the tower 5 from becoming larger and causing the tower 5 to loosen.

[0040] The hydraulic cylinder 33 drives the hydraulic rod 324 to lift upward, so that the slip ring 323 slides on the surface of the hydraulic rod 324 and drives the hinge plate 321 and the bonding plate 322 to extend on the surface of the slip ring 323 until they are in contact with the inner wall of the base 31. At this time, the three groups of bonding plates 322 are stably supported in the shape of three points inside the base 31, achieving multi-point support for the base 31 for reinforced support.

[0041] The median axis 326 is disposed at the bottom of the positioning seat 44 to support the positioning seat 44 so that the positioning seat 44 abuts against the bottom of the tower 5 to improve the tightness of the connection between the mounting ring 43 and the tower 5 .

[0042] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A wind power tower with an internal support device, It is characterized in that include: A nacelle (6), the nacelle (6) being used for protecting and placing a fan unit, a wheel shaft (1) being fixedly mounted on an output end of the nacelle (6), and blades (2) being rotatably mounted on an outer surface of the wheel shaft (1); An inner support assembly (4), the inner support assembly (4) being used for stabilizing and protecting the bottom of a wind power generation tower, the top of the inner support assembly (4) being sleeved with a tower cylinder (5); A wind turbine foundation (3), the wind turbine foundation (3) is used to reinforce the bottom of a wind power tower; The tower (5) is fixedly mounted on the bottom of the nacelle (6), the inner support assembly (4) is fixedly mounted inside the cylinder cavity of the tower (5), and the inner support assembly (4) is fixedly mounted at the middle of the top of the wind turbine foundation (3); The inner support assembly (4) comprises a bearing block (42), a mounting ring (43) is fixedly mounted on the top of the bearing block (42), a positioning seat (44) is fixedly mounted in the middle of the inner part of the bearing block (42), a vibration-damping support member (45) is fixedly mounted in the middle of the top of the positioning seat (44), a top support rod group (41) is fixedly mounted in the inner part of the vibration-damping support member (45), and side stickers (46) are fixedly mounted on both sides of the outer surface of the vibration-damping support member (45).

2. A wind power generation tower with an internal support device according to claim 1, Features: The bearing block (42) is fixedly mounted on the top of the wind turbine foundation (3), the mounting ring (43) is sleeved on the outer surface of the tower (5), and the top support rod group (41) and the side fitting (46) are both adapted to the inner wall of the tower (5).

3. A wind power generation tower with an internal support device according to claim 2, Features: The vibration-damping support member (45) comprises a positioning plate (453), the positioning plate (453) being fixedly mounted on the top of the positioning seat (44), a connecting plate (452) being fixedly mounted on the top of the positioning plate (453), extension frames (454) being fixedly mounted on both sides of the top of the connecting plate (452), a clamping ring bent block (456) being fixedly mounted on the top of each of the extension frames (454), and a patch (455) being fixedly mounted on the outer surface of the clamping ring bent block (456).

4. A wind power generation tower with an internal support device according to claim 3, Features: A clamping block (457) is fixedly mounted on the top of the clamping ring bending block (456), and a hollow cover (451) is fixedly mounted on the bottom of the clamping block (457). The hollow cover (451) is arranged on both sides of the outer surface of the extension frame (454), and the bottom of the hollow cover (451) is adapted to the side of the outer surface of the positioning plate (453).

5. A wind power generation tower with an internal support device according to claim 1, Features: The top support rod group (41) comprises a top block (411), a support rod (412) being fixedly mounted on the outer surface of the top block (411), four support rods (412) being provided, and the four support rods (412) being symmetrically arranged with the top block (411) as the center, a round seat (413) being fixedly mounted on the bottom of the top block (411), and a clamping ring (414) being fixedly mounted on the bottom of the round seat (413).

6. A wind power generation tower with an inner support device according to claim 5, Features: The top block (411) is fixedly mounted on the top of the clamping block (457), the support rod (412) is adapted to the inner wall of the tower (5), and the round seat (413) and the clamping ring (414) are respectively clamped between the opposite surfaces of the clamping block (457) and the patch (455).

7. A wind power generation tower with an internal support device according to claim 1, Features: The side fitting (46) comprises an extended side plate (461), the extended side plate (461) being fixedly mounted on both sides of the outer surface of the clamping block (457), two extended side plates (461) being provided, the two extended side plates (461) being symmetrically arranged with the top block (411) as the center, connecting plates (463) being fixedly mounted on both sides of the outer surface of the extended side plate (461), a curved plate (464) being fixedly mounted on the outer surface of the connecting plate (463), a coated curved plate (462) being fixedly mounted on the outer surface of the curved plate (464), and the coated curved plate (462) being abutted against the inner wall of the tower (5).

8. A wind power generation tower with an internal support device according to claim 1, Features: The fan foundation (3) comprises a base (31), a hydraulic cylinder (33) is fixedly mounted on the bottom of the inner cavity of the base (31), a stabilizing support component (32) is movably mounted on the top of the hydraulic cylinder (33), a positioning ring plate (34) is fixedly mounted on the top of the stabilizing support component (32), and the positioning ring plate (34) is fixedly mounted on the bottom of the bearing block (42).

9. A wind power generation tower with an inner support device according to claim 8, Features: The stabilizing component (32) comprises a hydraulic rod (324), the hydraulic rod (324) being fixedly connected to the axis of the hydraulic cylinder (33), a slip ring (323) being sleeved on the outer surface of the hydraulic rod (324), a hinge plate (321) being rotatably mounted on the outer surface of the slip ring (323), a fitting plate (322) being fixedly mounted on the outer surface of the hinge plate (321), and the fitting plate (322) being adapted to the inner wall of the base (31).

10. A wind power generation tower with an inner support device according to claim 9, Features: A median axis (326) is movably mounted on the surface of one end of the hydraulic rod (324) away from the hydraulic cylinder (33); the median axis (326) is fixedly mounted in the middle of the interior of the positioning ring plate (34); the median axis (326) penetrates the bearing block (42) and extends to the bottom of the positioning seat (44); a connecting plate (325) is fixedly mounted on the outer surface of the median axis (326); the connecting plate (325) is rotatably connected to the bonding plate (322).

Citation Information

Patent Citations

  • Fan and tower drum thereof

    CN102434404A

  • Active anti-resonance device for a wind driven generator sleeve supporting frame

    CN114017260A

  • Tension bracing tool mechanism for preventing wind power tower drum from deforming

    CN117090735A

  • Tower structure of wind driven generator

    CN117231429A

  • Offshore wind turbine supporting structure

    CN117967516A

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