A wind turbine foundation reinforcing device

CN224833840UActive Publication Date: 2026-10-09THREE GORGES GRP YUNNAN ENERGY INVESTMENT CO LTD
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Patent Information

Application Number
CN202522441946.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-18
Publication Date
2026-10-09
Estimated Expiration
2035-11-18

AI Technical Summary

Technical Problem

[0002]近年来,在我国发电领域中,风力发电项目发展迅速,陆上风力发电机组建设量大大增加,但发电机组建成后,工程质量事故时有发生,其中风机柱墩摇摆现象便是重大隐患之一,若风机的摇摆现象没有及时进行处理,随着时间的推移,表层混凝土不断受到基础的挤压、冲击,产生疲劳效应,风机的摇摆现象将越来越明显,当表层混凝土的损伤向下部延伸到一定深度时,风机基础环将由原整体侧向受力形式转变为局部上下两点杠杆受力形式,从而引起风力发电机的倒塌

Benefits of technology

1、本实用新型的内螺纹筒与螺纹柱的螺旋传动实现长度微调,配合锁定座的弹簧-卡柱-卡槽三级锁定机构,确保调节后位置固定,避免传统卡扣连接易松动的缺陷。该设计在风力发电机组基础因温度变化、地基沉降产生形变时,可动态补偿位移,维持加固系统稳定性。

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Abstract

The utility model discloses a wind generating set foundation reinforcing device, including foundation column pier and set up in its outside reinforcing component, the reinforcing component includes with the fixed connection of reinforcing embrace ring of foundation column pier, the reinforcing embrace ring is connected with fixed pull rod through adjustable connecting component, fixed pull rod lower extreme is connected with the force -bearing bottom column, the force -bearing bottom column bottom is equipped with the load -bearing bottom plate and underground anchoring spare, adjustable connecting component includes: screw drive mechanism, screw drive mechanism monument internal thread cylinder and threaded column, three -level locking mechanism, three -level locking mechanism includes locking seat, spring, card column and card slot, and the mechanical locking is formed through the spring drive card column inserts card slot, the utility model aims at when the wind generating set foundation because of temperature change, the deformation of foundation settlement, can dynamic compensation displacement, maintains the stability of reinforcing system.
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Description

Technical Field

[0001] This utility model belongs to the technical field of wind turbine generator sets, specifically a foundation reinforcement device for wind turbine generator sets. Background Technology

[0002] In recent years, wind power projects have developed rapidly in my country's power generation sector, with a significant increase in the construction of onshore wind turbine units. However, after the units are built, engineering quality accidents occur frequently, among which the swaying of the wind turbine support is a major hidden danger. If the swaying of the wind turbine is not addressed in time, over time, the surface concrete will be continuously squeezed and impacted by the foundation, resulting in fatigue effects. The swaying of the wind turbine will become more and more obvious. When the damage to the surface concrete extends downward to a certain depth, the wind turbine foundation ring will change from the original overall lateral force-bearing form to a local two-point lever force-bearing form, thereby causing the wind turbine to collapse. However, in existing wind turbine foundation reinforcement devices, the connecting rod bracket is directly fixed to the foundation column, making it difficult to flexibly adjust the installation position of the load-bearing column according to the actual terrain around the foundation column. When the site of the foundation column has slope, unevenness, or other terrain differences, the load-bearing column is prone to positional deviation, tilting, or loose contact with the ground. This results in the load-bearing column being unable to evenly transfer the load, significantly weakening the reinforcement device's fixed support effect on the foundation column and reducing the overall stability and load-bearing capacity of the foundation column.

[0003] In prior art document 1, Chinese patent publication number CN218204617U, a wind turbine foundation reinforcement device is mentioned, including a foundation pier. A reinforcement ring is installed on the outer side of the foundation pier near the bottom. The outer circumferential wall of the reinforcement ring is provided with multiple sets of equally spaced connecting rod brackets. The end of the connecting rod bracket away from the reinforcement ring is welded with a stress hook, which solves the problem of inconvenience in fixing the foundation pier. However, the connecting rod bracket in prior art document 1 is welded in a ring shape, and the installation accuracy depends on the welding quality, making subsequent adjustments difficult; it also lacks an expansion interface design, resulting in low maintenance flexibility.

[0004] To address the problems raised in the background art, those skilled in the art have proposed a wind turbine foundation reinforcement device. Utility Model Content

[0005] The purpose of this invention is to provide a wind turbine foundation reinforcement device to address the aforementioned problems. The technical solution of this utility model is as follows: This utility model discloses a foundation reinforcement device for wind turbine generator sets, comprising a foundation column and a reinforcement component disposed on its outer side. The reinforcement component includes a reinforcement clamp fixedly connected to the foundation column. The reinforcement clamp is connected to a fixed tie rod via an adjustable connecting component. The lower end of the fixed tie rod is connected to a load-bearing base column. The bottom of the load-bearing base column is provided with a load-bearing base plate and underground anchors. The foundation column and the reinforcement component constitute the main frame of the device. The reinforcement component is fixed to the column through the clamp, forming the physical support for foundation reinforcement.

[0006] The adjustable connection component includes: A screw drive mechanism, comprising an internal threaded cylinder and a threaded column, achieves stepless length adjustment through threaded engagement to adapt to displacement caused by foundation settlement or temperature changes and dynamically compensate for deformation. The three-level locking mechanism includes a locking seat, a spring, a locking pin, and a locking slot. The spring drives the locking pin to engage with the locking slot to form a mechanical lock, which solves the problem of easy loosening of traditional buckles, ensures that the position is fixed after adjustment, and maintains the stability of the system.

[0007] Furthermore, one end of the threaded column of the screw drive mechanism is connected to the fixed tie rod, transmitting the adjustment function of the screw drive to the tie rod system to achieve overall length adjustment. The internal threaded cylinder is movably connected to the first connecting block and is connected to the stress hook through a snap lock, forming a stress transmission path from the clamping ring to the tie rod. The first connecting block is connected to the stress hook through a snap lock, and the stress hook is fixed to the reinforced clamping ring through a connecting component, converting the fixing force of the clamping ring into the tension of the tie rod system to achieve structural reinforcement.

[0008] Furthermore, the locking seat of the three-stage locking mechanism is fixed to the outer wall of the internal threaded cylinder to ensure that the locking mechanism and the transmission mechanism work together without interfering with the thread adjustment. The spring compression is set in the locking seat to provide continuous thrust to keep the locking pin in the embedded state, preventing vibration or deformation from causing locking failure. The locking pin is embedded in multiple slots on the edge of the mounting block by the spring thrust to form multi-point locking. Through the engagement of multiple locking pins and slots, distributed locking is formed to enhance the anti-loosening ability.

[0009] Furthermore, the connecting assembly also includes a clamping plate and a clamping block. The clamping plate engages with the first groove of the reinforcing ring via the clamping block. A connecting rod bracket is welded to the outer wall of the clamping plate. The connecting rod bracket is fixedly connected to the stress hook, transmitting the fixing force of the ring to the hook, thus forming an intermediate link for stress transmission.

[0010] Furthermore, the lower surface of the connecting rod bracket is provided with an elastic buffer mechanism, which achieves rapid installation and positioning by engaging the first slot of the clamping ring with the locking block. It includes a third mounting slot, a first spring and an abutment block, which are used to absorb the vibration energy of the foundation, form an elastic buffer layer, absorb the vibration energy of the foundation column, reduce the impact damage of rigid connection to the structure, and extend the service life of the device.

[0011] Furthermore, the surface of the reinforced retaining ring is provided with a first mounting groove and a second mounting groove. The inner wall of the first mounting groove is provided with a first slot. The second mounting groove is fixed with an extension mounting plate by bolts, providing installation space for the connecting components. The second mounting groove is fixed with an extension mounting plate by bolts, supporting modular functional expansion.

[0012] Furthermore, the underground anchor consists of multiple underground steel bar inserts arranged in an array below the load-bearing base plate. The bottom end of the inserts has a folded structure to enhance pull-out resistance. The overall pull-out resistance is improved through optimization of the number and distribution. The folded bottom end design enhances the frictional resistance with the foundation and prevents pull-out.

[0013] Furthermore, the fixed tie rod is connected to the second connecting block via a second snap lock, and the second connecting block is fixedly connected to the end of the threaded column of the screw transmission mechanism, forming a stress transmission path from the tie rod to the screw transmission mechanism. The second connecting block is fixed to the threaded column, realizing closed-loop control of adjustment and locking.

[0014] Furthermore, the load-bearing base column and the load-bearing base plate are connected by welding. The load-bearing base plate is a ring-shaped steel structure. The underground steel reinforcement rods penetrate the load-bearing base plate and are fixed by locking nuts to ensure the integrity of the structure. The ring-shaped steel structure base plate disperses the pressure, and the underground steel reinforcement rods penetrate the base plate and are fixed by locking nuts to form a double anchoring guarantee.

[0015] Furthermore, the ports of the first and second card slots are provided with rounded corner structures to facilitate quick alignment and installation of the connecting components, provide guidance during the installation of the connecting components, reduce alignment errors, and improve construction speed and accuracy.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. The internal threaded cylinder and threaded column of this utility model achieve fine-tuning of length through helical transmission. Combined with the three-stage locking mechanism of spring-clamp-slot of the locking seat, it ensures a fixed position after adjustment, avoiding the loosening defects of traditional snap-fit ​​connections. This design can dynamically compensate for displacement and maintain the stability of the reinforcement system when the wind turbine foundation deforms due to temperature changes and foundation settlement.

[0017] 2. The first spring and the abutment block in the third mounting groove of this utility model form an elastic buffer layer, which absorbs the vibration energy of the foundation column and reduces the impact damage to the structure caused by the rigid connection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a wind turbine generator foundation reinforcement device according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the stress hook structure of a wind turbine generator foundation reinforcement device according to an embodiment of the present invention; Figure 3 This is an exploded structural diagram of the adjusting component of a wind turbine generator foundation reinforcement device according to the present invention; Figure 4 This is an exploded structural diagram of the connecting component of a wind turbine generator foundation reinforcement device according to the present invention.

[0019] Reference numerals: 1. Foundation column pier; 11. Reinforcing ring; 111. First mounting groove; 112. First slot; 113. Second mounting groove; 114. Mounting plate; 12. Connecting assembly; 121. Clip plate; 122. Clip block; 123. Connecting rod bracket; 124. Third mounting groove; 125. First spring; 126. Abutment block; 13. Stress hook; 14. First latch lock; 141. Second latch lock; 15. First connecting block; 16. Adjusting assembly; 161. Mounting block; 162. Internal threaded cylinder; 163. Threaded column; 164. Locking seat; 165. Second spring; 166. Third connecting block; 167. Locking plate; 168. Clip column; 169. Second slot; 17. Second connecting block; 18. Fixed tie rod; 2. Bearing base column; 21. Load-bearing base plate; 22. Underground steel reinforcement rod. Detailed Implementation

[0020] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0022] Example 1: Please see Figure 1 - Figure 4As shown, a wind turbine foundation reinforcement device includes a foundation column pier 1: A reinforcing ring 11 is bolted to the side wall of the foundation column pier 1. The outer side wall of the reinforcing ring 11 has a first mounting groove 111, and the inner wall of the first mounting groove 111 has a first locking groove 112. Multiple connecting components 12 are provided on the side wall of the reinforcing ring 11. A stress hook 13 is connected to the outside of the reinforcing ring 11 via the connecting components 12. One end of the stress hook 13 is provided with a first latch lock 14, and one end of the stress hook 13 is connected to a first connecting block 15 via the first latch lock 14. One end of the first connecting block 15 is provided with an adjustment mechanism. Component 16, one end of the first connecting block 15 is connected to the second connecting block 17 via the adjusting component 16, one end of the second connecting block 17 is provided with the second latch lock 141, one end of the second connecting block 17 is connected to the fixed tie rod 18 via the second latch lock 141, one end of the fixed tie rod 18 is provided with the load-bearing base column 2, the lower end of the load-bearing base column 2 is fixedly connected to the load-bearing base plate 21, and the lower end of the load-bearing base plate 21 is fixedly connected to multiple underground steel bar inserts 22. In this embodiment, the fixed tie rod 18 can be fixedly connected to the load-bearing base column 2 via clamp fasteners; The connecting assembly 12 includes a clamping plate 121. The side walls at both ends of the clamping plate 121 are fixedly connected to clamping blocks 122. The side wall in the middle of the clamping plate 121 is fixedly connected to a connecting rod bracket 123. The end of the connecting rod bracket 123 away from the clamping plate 121 is fixedly connected to a stress hook 13.

[0023] As can be seen from the above, the bolt fixing of the reinforcing ring 11 to the foundation column 1 must be completed first to provide a stable reference for subsequent connection components. Then, the staff needs to preliminarily plan the optimal placement of the load-bearing column 2 based on the actual terrain conditions around the foundation column 1, such as slope, uneven ground, etc. After determining the position of the load-bearing column 2, the clamping plate 121 in the connecting component 12 is aligned with the first mounting groove 111 preset on the outer wall of the reinforcing ring 11, so that the clamping plate 121 is initially embedded in the groove, and the connecting rod bracket 1 is slowly rotated. 23. Continue until the extension direction of the connecting rod bracket 123 is aligned with the line connecting the load-bearing column 2 and the foundation column pier 1, ensuring that subsequent stress can be efficiently transmitted along the preset direction. After the connecting rod bracket 123 rotates to the target angle, smoothly pull the connecting rod bracket 123 outward in a horizontal direction away from the reinforcing ring 11. During this process, the locking blocks 122 fixed at the upper and lower ends of the locking plate 121 will move synchronously with the locking plate 121, and finally form a tight locking connection with the first locking groove 112 opened in the inner wall of the first mounting groove 111, completing the connection. During the initial positioning of the connecting assembly 12 and the reinforcing ring 11, simultaneously, in the third mounting groove 124 on the lower surface of the connecting rod bracket 123 near the end of the clamping plate 121, the compressed first spring 125 releases its elastic potential energy, pushing the abutment block 126 outward along the third mounting groove 124 until the side wall of the abutment block 126 away from its own inclined surface is tightly fitted with the outer side wall of the reinforcing ring 11. The elastic clamping force further restricts the displacement of the connecting assembly 12, thus achieving the connection between the connecting assembly 12 and the reinforcing ring 11. The double fixing lays a solid foundation for the subsequent connection of the stress hook 13, the fixing rod 18 and the load-bearing base column 2, and reduces the fatigue damage of the wind turbine foundation column pier 1. At the bottom of the load-bearing base plate 21, a total of 16 sets of downward-extending underground steel bar inserts 22 are set at the four corners to improve the grip and stability. At the same time, a set of reinforcement devices can be arranged at intervals from bottom to top on the outer wall of the foundation column pier 1, and the positions of the load-bearing base column 2 and the load-bearing base plate 21 can be moved further away in sequence, which can greatly improve the service life of the wind turbine foundation after reinforcement.

[0024] Example 2: This embodiment is basically the same as the previous embodiment, except that the adjusting component 16 includes a mounting block 161 fixedly connected to the end of the first connecting block 15 away from the first latch lock 14, and an internal threaded cylinder 162 movably connected to the middle of the end of the mounting block 161 away from the first connecting block 15. A threaded post 163 is threadedly connected to the inner wall of the internal threaded cylinder 162, and one end of the threaded post 163 is fixedly connected to the second connecting block 17.

[0025] A locking seat 164 is fixedly connected to the outer wall of the internally threaded cylinder 162. A second spring 165 is fixedly connected to the inner wall of the locking seat 164. A third connecting block 166 is fixedly connected to one end of the second spring 165. A locking plate 167 is fixedly connected to one end of the third connecting block 166. Multiple locking pins 168 are evenly fixedly connected to one end of the locking plate 167. Multiple second locking grooves 169 are evenly opened on the edge of the mounting block 161 near one end of the internally threaded cylinder 162.

[0026] A third mounting groove 124 is provided on the lower surface of the connecting rod bracket 123 near the end of the card plate 121. A first spring 125 is fixedly connected to the inner wall of the third mounting groove 124, and an abutment block 126 is fixedly connected to one end of the first spring 125.

[0027] The outer wall of the reinforcing ring 11 is provided with a second mounting groove 113, and the inner wall of the second mounting groove 113 is fixedly connected with a mounting plate 114 by bolts.

[0028] When installing the connecting component 12, the operator must first align the clamping plate 121 with the opening of the second mounting groove 113, and push the clamping plate 121 into the groove along the direction of the groove until it fits against the groove wall of the first mounting groove 111. Then, adjust the specific position of the clamping plate 121 in the first mounting groove 111 according to the preset position of the load-bearing base column 2 to ensure that the connecting rod bracket 123 can accurately point in the direction of the load-bearing base column 2. After the position of the clamping plate 121 is determined and the clamping block 122 is engaged with the first clamping groove 112, cover the opening of the second mounting groove 113 with the mounting plate 114, align the bolt holes of the mounting plate 114 with the reserved holes in the groove wall of the second mounting groove 113, and then use bolts to pass through the bolt holes of the mounting plate 114 and the groove wall in sequence and tighten them to achieve rigid fixation of the mounting plate 114 and the reinforcing ring 11.

[0029] The first slot 112 has a rounded corner at the port to facilitate pushing the abutment block 126.

[0030] As can be seen from the above, after the initial assembly of the wind turbine foundation reinforcement device is completed, the tension of the connecting parts between the foundation column 1 and the load-bearing column 2 needs to be precisely adjusted according to the actual stress requirements between them. During adjustment, the staff needs to concentrate the force on the outer wall of the inner threaded cylinder 162 and rotate the inner threaded cylinder 162 clockwise or counterclockwise. Since the inner threaded cylinder 162 and the mounting block 161 are movably connected, and its inner wall is engaged with the threaded column 163 through the threaded structure, when the inner threaded cylinder 162 rotates, the threaded column 163 will move linearly along the axial direction of the inner threaded cylinder 162, thereby changing the length of the threaded column 163 extending out of the inner threaded cylinder 162.

[0031] The end of the threaded column 163 away from the internal threaded cylinder 162 is fixedly connected to the second connecting block 17. The second connecting block 17 is connected to the fixed tie rod 18 through the second snap lock 141. The other end of the fixed tie rod 18 is connected to the load-bearing base column 2. At the same time, the mounting block 161 connected to the internal threaded cylinder 162 is connected to the stress hook 13 through the first connecting block 15 and the first snap lock 14. The stress hook 13 is fixed on the reinforcing ring 11 on the outside of the foundation column pier 1, forming a complete force link of "foundation column pier 1 - stress hook 13 - adjustment component 16 - fixed tie rod 18 - load-bearing base column 2". Therefore, the change in the extension length of the threaded column 163 will directly drive the expansion and contraction of the entire force link, and finally realize the flexible adjustment of the tension of the connecting parts between the foundation column pier 1 and the load-bearing base column 2, ensuring that the connecting parts can be in the best stress state, avoiding the failure of reinforcement due to excessive looseness or the damage to the components due to excessive tightness.

[0032] Secondly, using the second spring 165 pre-installed on the inner wall of the locking seat 164, a pushing force is applied to the third connecting block 166 toward the mounting block 161, causing the locking plate 167 fixed to the third connecting block 166 to move synchronously. This causes multiple locking pins 168 evenly distributed at one end of the locking plate 167 to embed into the second locking groove 169 near the edge of the inner threaded cylinder 162 on the mounting block 161. The tight engagement between the locking pins 168 and the second locking groove 169 forms a mechanical limiting structure, effectively restricting the circumferential rotation of the inner threaded cylinder 162. This ensures that the tension of the adjusted connector remains stable, preventing the inner threaded cylinder 162 from rotating due to vibrations during wind turbine operation or external environmental influences. This, in turn, ensures the long-term stable reinforcement effect of the reinforcement device on the foundation column pier 1.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] The workers first used bolts to firmly fix the reinforcing ring 11 to the side wall of the foundation column 1. At the same time, based on the actual terrain around the foundation column 1, they planned the optimal placement of the load-bearing column 2 to ensure that the load-bearing column 2 can be vertically attached to the ground and evenly transmit the load, laying the foundation for subsequent force transmission.

[0035] Next, align the locking plate 121 in the connecting assembly 12 with the second mounting groove 113 on the outer wall of the reinforcing ring 11, and push it in along the groove direction so that the locking plate 121 fits against the groove wall of the first mounting groove 111. Then, according to the preset position of the load-bearing column 2, slowly rotate the connecting rod bracket 123 to adjust the position of the locking plate 121 in the first mounting groove 111 until its extension direction is precisely aligned with the line connecting the load-bearing column 2 and the foundation column pier 1, ensuring that the subsequent stress is efficiently transmitted along the preset direction. After the angle of the connecting rod bracket 123 is determined, pull the connecting rod bracket 123 in a horizontal direction away from the reinforcing ring 11, causing the locking plate 121 to move synchronously, so that the locking blocks 122 at the upper and lower ends of the locking plate 121 fit against the first mounting groove 111. The first slot 112 on the inner wall of the mounting groove 111 engages tightly, completing the initial positioning of the connecting component 12 and the reinforcing ring 11. At the same time, in the third mounting groove 124 on the lower surface of the connecting rod bracket 123 near the end of the clamping plate 121, the compressed first spring 125 releases its elastic potential energy, pushing the abutment block 126 to slide outward along the groove, so that the side wall of the abutment block 126 away from the inclined surface fits against the outer side wall of the reinforcing ring 11. The elastic clamping force forms a double fixation, further restricting the displacement of the connecting component 12. Then, the mounting plate 114 is covered over the opening of the second mounting groove 113, the bolt holes of the mounting plate 114 and the groove wall are aligned and the bolts are tightened to achieve rigid fixation of the mounting plate 114 and the reinforcing ring 11.

[0036] Subsequently, the stress hook 13 is connected to the first connecting block 15 via the first snap lock 14, and the first connecting block 15 is connected to the second connecting block 17 via the adjustment component 16. Then, the second connecting block 17 is connected to the fixed tie rod 18 via the second snap lock 141. Finally, the fixed tie rod 18 is fixed to the load-bearing column 2 with the clamp fastener. At the four corners of the load-bearing base plate 21 at the bottom of the load-bearing column 2, there are 16 sets of underground steel bar inserts 22. After being inserted into the ground, they can greatly improve the grip and stability of the load-bearing column 2. Thus, a complete force link is formed: "foundation column pier 1 - reinforcement clamp 11 - connecting component 12 - stress hook 13 - adjustment component 16 - fixed tie rod 18 - load-bearing column 2".

[0037] Based on the actual stress requirements of the foundation column 1 and the load-bearing base column 2, the engagement between the locking column 168 and the second locking groove 169 is first released. Then, the workers rotate the outer wall of the inner threaded cylinder 162. Because the inner threaded cylinder 162 is movably connected to the mounting block 161 and threadedly engaged with the threaded column 163, the threaded column 163 will move linearly along the axis of the inner threaded cylinder 162 during rotation, changing the extension length, thereby driving the entire stress link to expand and contract, realizing flexible adjustment of the tension of the connector, and ensuring that the connector is in the best stress state. When the tension is adjusted to the target value, the engagement between the locking column 168 and the second locking groove 169 is reset. The engagement forms a mechanical limit, restricting the circumferential rotation of the inner threaded cylinder 162, and ensuring long-term stability of the tension.

[0038] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. Electrofusion connections also employ conventional connection methods in the prior art, and will not be detailed here. All content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0039] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A wind turbine foundation reinforcement device, comprising a foundation pier and reinforcement components disposed on its outer side, characterized in that: The reinforcement component includes a reinforcement clamp fixedly connected to the foundation column pier. The reinforcement clamp is connected to a fixed tie rod via an adjustable connection component. The lower end of the fixed tie rod is connected to the load-bearing base column. The load-bearing base column is provided with a load-bearing base plate and underground anchors at its bottom. The adjustable connection component includes: A screw drive mechanism, the screw drive mechanism comprising an internally threaded cylinder and a threaded column; The three-level locking mechanism includes a locking seat, a spring, a locking pin, and a locking slot. The spring drives the locking pin to engage with the locking slot to form a mechanical lock.

2. The reinforcement device according to claim 1, characterized in that: One end of the threaded column of the helical transmission mechanism is connected to the fixed tie rod, and the internal threaded cylinder is movably connected to the first connecting block. The first connecting block is connected to the stress hook through a snap lock, and the stress hook is fixed to the reinforcing ring through a connecting assembly.

3. The reinforcement device according to claim 1, characterized in that: The locking seat of the three-level locking mechanism is fixed to the outer wall of the internal threaded cylinder, and the spring is compressed and set inside the locking seat. The locking pin is pushed by the spring and embedded in multiple slots on the edge of the mounting block to form multi-point locking.

4. The reinforcement device according to claim 2, characterized in that: The connecting assembly also includes a card plate and a card block. The card plate is engaged with the first slot of the reinforcing ring through the card block. A connecting rod bracket is welded to the outer wall of the card plate, and the connecting rod bracket is fixedly connected to the stress hook.

5. The reinforcement device according to claim 4, characterized in that: The lower surface of the connecting rod bracket is provided with an elastic buffer mechanism, which includes a third mounting groove, a first spring and an abutment block, for absorbing the vibration energy of the foundation.

6. The reinforcement device according to claim 1, characterized in that: The surface of the reinforcing ring is provided with a first mounting groove and a second mounting groove. The inner wall of the first mounting groove is provided with a first slot, and the second mounting groove is fixed with an extension mounting plate by bolts.

7. The reinforcement device according to claim 1, characterized in that: The underground anchor consists of multiple underground steel bar inserts arranged in an array below the load-bearing base plate. The bottom end of the inserts has a folded structure to enhance pull-out resistance.

8. The reinforcement device according to claim 1, characterized in that: The fixed tie rod is connected to the second connecting block via a second snap lock, and the second connecting block is fixedly connected to the end of the threaded column of the screw transmission mechanism.

9. The reinforcement device according to claim 1, characterized in that: The load-bearing base column and the load-bearing base plate are connected by welding. The load-bearing base plate is a ring-shaped steel structure. The underground steel reinforcement rods penetrate the load-bearing base plate and are fixed by locking nuts.

10. The reinforcement device according to claim 6, characterized in that: The first and second card slots have rounded corners at their ports to facilitate quick alignment and installation of the connecting components.

Citation Information

Patent Citations

  • Foundation reinforcing device of wind generating set

    CN218204617U