Stable support for wind power generation

Abstract

The utility model discloses a stable support for wind power generation, and relates to the technical field of wind power generation, the stable support comprises a bottom plate, a mounting hole is formed in the center of the bottom plate, a plurality of vibration reduction assemblies are circumferentially arranged on the bottom plate with the mounting hole as the circle center, and each vibration reduction assembly comprises a first sleeve fixed to the bottom plate and a first rod piece slidably inserted into the first sleeve; a first elastic piece is arranged in the first sleeve, the two ends of the first elastic piece are connected with the first sleeve and the first rod piece correspondingly, and a push plate abutting against the outer side wall of the tower is arranged at the end, away from the first sleeve, of the first rod piece; the multiple vibration reduction assemblies are beneficial to coping with vibration impact of the tower from different directions; when the tower vibrates, the first rod piece moves relative to the first sleeve, the first elastic piece stretches out and draws back to absorb energy, vibration transmitted to the bottom plate by the tower is relieved, the support structure is protected, fatigue damage caused by vibration is reduced, and the service life of the support is prolonged. A push plate is arranged at the end, away from the first sleeve, of the first rod piece and abuts against the outer side wall of the tower, and vibration energy can be effectively transmitted to the vibration reduction assembly to be treated.

Description

Technical Field

[0001] This application relates to the field of wind power generation technology, and in particular to a stable support for wind power generation. Background Technology

[0002] Wind turbines convert wind energy into electrical energy, continuously supplying power to cities, remote areas, and other scenarios. However, wind power equipment is usually installed in open outdoor areas with complex and variable wind conditions, such as mountains, coastal areas, and vast plains. It must withstand the impact of continuous strong winds and cope with the torsional forces caused by frequent changes in wind direction. This makes stable supports for wind turbines a key element in ensuring the safe and stable operation of wind turbines.

[0003] Currently, the most common wind power generation stabilization supports on the market mainly consist of towers, foundation connectors, and supporting fixing devices. Common connection methods include anchor bolts; the supporting fixing devices include various clamps and slots.

[0004] Regarding the aforementioned technologies, the inventors believe that the structural design of traditional supports focuses on strength and load-bearing capacity. When strong winds occur, the tower vibration is prone to problems such as fatigue cracks and accelerated wear. Utility Model Content

[0005] The purpose of this application is to provide a stable support for wind power generation to improve the problems of fatigue cracks and accelerated wear caused by tower vibration.

[0006] This application provides a stable support frame for wind power generation, which adopts the following technical solution:

[0007] A stable support for wind power generation includes a base plate with a mounting hole at the center for a tower to pass through. Several vibration damping components are arranged circumferentially around the mounting hole on the base plate. Each vibration damping component includes a sleeve fixed to the base plate and a rod slidably inserted into the sleeve. An elastic element is provided inside the sleeve, with its two ends connected to the sleeve and the rod, respectively. A push plate is provided at the end of the rod away from the sleeve that abuts against the outer wall of the tower.

[0008] By adopting the above technical solution, the mounting holes facilitate precise positioning and installation of the support and tower, ensuring a tight connection of the overall structure; several vibration damping components help to cope with vibration impacts from different directions on the tower; when the tower vibrates, member one moves relative to sleeve one, and elastic member one extends and retracts to absorb energy, reducing the vibration transmitted from the tower to the base plate, protecting the support structure, reducing fatigue damage caused by vibration, and extending the service life of the support; the end of member one away from sleeve one is equipped with a push plate that abuts against the outer wall of the tower, which helps to effectively transfer vibration energy to the vibration damping components for treatment.

[0009] Optionally, the sleeve is provided with a slider, and the base plate is provided with a plurality of sliding grooves arranged around the circumference of the slider with the mounting hole as the center. The slider is provided with a fixing plate that fits against the bottom surface of the base plate, and the fixing plate is provided with fixing bolts.

[0010] By adopting the above technical solution, the sleeve can move relative to the base plate and then be tightened by fixing bolts, which helps to put the vibration damping component in the optimal stress state and further improve the vibration damping effect.

[0011] Optionally, the push plate is provided with a vertical plate along the vertical direction that can abut against the tower.

[0012] By adopting the above technical solution, the vertical plate increases the contact area and support points with the tower, making the support of the push plate on the tower more stable, dispersing the pressure applied to the push plate when the tower vibrates, avoiding excessive local stress, reducing the risk of push plate deformation, and at the same time, it can better transmit vibration energy to the relevant vibration damping components, thereby improving vibration damping efficiency.

[0013] Optionally, the vertical plate and the push plate have arc surfaces.

[0014] By adopting the above technical solution, the arc surface fits tightly with the tower, increasing the friction and effectively preventing relative sliding displacement between the tower and the support.

[0015] Optionally, the arc surface is provided with an elastic pad.

[0016] By adopting the above technical solution, the elastic pad further buffers the impact force between the tower and the support, protecting the surface of the tower and the support from wear; on the other hand, the flexible material of the elastic pad can fill the small gaps that may exist between the tower and the support, further enhancing the fit stability, optimizing the vibration reduction effect, and reducing the noise caused by hard contact.

[0017] Optionally, the sleeve is provided with a support rod, and the end of the support rod away from the sleeve abuts against the vertical plate.

[0018] By adopting the above technical solution, the sleeve is equipped with a support rod and one end of which abuts against the vertical plate, providing additional support for the push plate and the vertical plate. When dealing with strong winds and vibrations, it can better limit the excessive swaying of the tower and improve the overall stability support and vibration reduction capabilities of the support for the tower.

[0019] Optionally, the support rod includes a sleeve two rotatably connected to the sleeve one and a rod two slidably inserted into the sleeve two. An elastic element two is provided inside the sleeve two, and the two ends of the elastic element two are respectively connected to the sleeve two and the rod two. The vertical plate is provided with teeth along the up and down direction, and the end of the rod two away from the sleeve two abuts against the teeth.

[0020] By adopting the above technical solution, when the tower vibration causes the vertical plate to shift, the second rod can flexibly extend and retract within the second sleeve, and the second elastic element absorbs energy and buffers simultaneously, working in conjunction with the vibration damping components to cope with the vibration. The vertical plate is equipped with teeth, and the second rod abuts against them. The tooth structure ensures that the second rod is tightly connected to the vertical plate and will not easily slip off, ensuring the reliability of the support. Moreover, the relative position of the two can be finely adjusted according to the vibration situation to optimize the support effect.

[0021] Optionally, the second rod is provided with a baffle plate that can abut against the second sleeve to prevent excessive compression of the second elastic element.

[0022] By adopting the above technical solution, the second rod is equipped with a baffle plate. When the second elastic element is subjected to greater pressure and is over-compressed, the baffle plate can promptly press against the second sleeve to prevent the second elastic element from losing its elasticity or even being damaged due to over-compression. This protects the integrity of the support rod's buffer function and helps maintain stable vibration reduction and support performance under extreme wind conditions.

[0023] Optionally, the base plate is provided with a support platform that abuts against the bottom surface of the push plate.

[0024] By adopting the above technical solution, the support platform shares part of the pressure from the tower on the push plate, strengthens the load-bearing capacity of the push plate, and reduces the possibility of fatigue cracks or deformation of the push plate due to long-term stress.

[0025] In summary, this application includes at least one of the following beneficial technical effects for wind power generation stabilization supports:

[0026] 1. The mounting holes facilitate precise positioning and installation of the support frame and tower, ensuring a tight connection of the overall structure; several vibration damping components help to cope with vibration impacts from different directions on the tower; when the tower vibrates, member one moves relative to sleeve one, and elastic element one extends and retracts to absorb energy, reducing the vibration transmitted from the tower to the base plate, protecting the support structure, reducing fatigue damage caused by vibration, and extending the service life of the support; the end of member one away from sleeve one is equipped with a push plate that abuts against the outer wall of the tower, which helps to effectively transfer vibration energy to the vibration damping components for treatment;

[0027] 2. The vertical plate increases the contact area and support points with the tower, making the support of the push plate on the tower more stable, dispersing the pressure applied to the push plate when the tower vibrates, avoiding excessive local stress, reducing the risk of push plate deformation, and at the same time, it can better transfer vibration energy to related vibration damping components, improving vibration damping efficiency.

[0028] 3. When the tower vibrates and causes displacement of the vertical plate, the second member can flexibly extend and retract within the second sleeve, and the second elastic member absorbs energy and buffers simultaneously, working in conjunction with the vibration damping components to cope with the vibration. The vertical plate is equipped with teeth, and the second member abuts against them. The tooth structure ensures that the second member and the vertical plate are tightly connected and will not easily slip off, ensuring the reliability of the support. Moreover, the relative position of the two can be finely adjusted according to the vibration situation to optimize the support effect. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a stable support frame for wind power generation;

[0030] Figure 2 This is a cross-sectional schematic diagram used to illustrate the structure of the vibration damping component in the embodiment.

[0031] In the diagram, 1 is the base plate; 11 is the mounting hole; 12 is the slide groove; 2 is the vibration damping assembly; 21 is the sleeve one; 211 is the slider; 212 is the fixing plate; 2121 is the fixing bolt; 22 is the rod one; 23 is the elastic element one; 3 is the push plate; 4 is the vertical plate; 41 is the arc surface; 411 is the elastic pad; 42 is the toothed rack; 5 is the support rod; 51 is the sleeve two; 52 is the rod two; 521 is the baffle plate; 53 is the elastic element two; 6 is the support platform; and 7 is the tower. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 -Appendix Figure 2 This application will be described in further detail below.

[0033] A stable support for wind power generation, as shown in the reference. Figure 1 , Figure 2 The system includes a base plate 1, which can be fixed to the installation position by precast steel bars or column nails. A mounting hole 11 for the tower 7 to pass through is provided in the center of the base plate 1. Several vibration damping components 2 are arranged circumferentially around the mounting hole 11 on the base plate 1; in this embodiment, three are preferred. Each vibration damping component 2 includes a sleeve 21 and a rod 22. The rod 22 is slidably inserted into the sleeve 21, with a clearance fit, allowing for relatively smooth sliding. An elastic element 23 is provided inside the sleeve 21. In this embodiment, the elastic element 23 is a spring, with its two ends welded to the bottom of the inner wall of the sleeve 21 and the bottom end of the rod 22, respectively, to achieve elastic buffering and reduce vibration transmission.

[0034] Reference Figure 1 , Figure 2The outer wall of the sleeve 21 is integrally formed with a slider 211. The base plate 1 is provided with a number of grooves 12 arranged around the circumference of the slider 211 with the mounting hole 11 as the center. In this embodiment, three grooves are preferred. The slider 211 and the grooves 12 are also clearance fit. The grooves 12 restrict the slider 211 to make linear movements. The slider 211 is provided with a fixing plate 212 that fits against the base plate 1. The fixing plate 212 and the slider 211 can be an integral structure. The fixing plate 212 is provided with fixing bolts 2121. By tightening the fixing bolts 2121, the fixing plate 212 can be fixed to the top surface of the base plate 1, thereby fixing the position of the sleeve 21.

[0035] Reference Figure 1 , Figure 2 A push plate 3 is welded to the end of the rod 22 away from the sleeve 21, which abuts against the outer wall of the tower 7. A support platform 6 is welded to the bottom plate 1, which abuts against the bottom surface of the push plate 3. The support platform 6 is used to assist in supporting the push plate 3 and enhance stability. A vertical plate 4 that can abut against the tower 7 is welded to the push plate 3 in the vertical direction. The vertical plate 4 and the push plate 3 have arc surfaces 41. The curvature of the arc surface 41 is designed according to the curvature of the outer wall of the tower 7 to better fit the tower 7. An elastic pad 411 is attached to the arc surface 41. The elastic pad 411 can be made of rubber, which can both buffer and increase friction to prevent displacement between the tower 7 and the support.

[0036] Reference Figure 1 , Figure 2 The support rod 5 of the sleeve 21 is connected to the vertical plate 4. The support rod 5 includes the sleeve 2 51 and the rod 2 52. One end of the sleeve 2 51 is rotatably connected to the sleeve 21 through a pin, which can realize a certain angle of swing. The rod 2 52 is slidably inserted into the sleeve 2 51. The two are also clearance fit, which facilitates the extension and retraction of the rod 2 52 relative to the sleeve 2 51. The sleeve 2 51 is provided with an elastic element 2 53. Here, the elastic element 2 53 is also a spring. Its two ends are welded to the inner wall of the sleeve 2 51 and one end of the rod 2 52, respectively, to provide elastic support force. The rod 2 52 is welded with a baffle plate 521 that can resist the sleeve 2 51 to prevent the elastic element 2 53 from being over-compressed. The baffle plate 521 is welded perpendicularly to the rod 2 52. When the elastic element 2 53 is compressed to a certain extent, the baffle plate 521 will resist the sleeve 2 51 to prevent the elastic element 2 53 from being damaged.

[0037] Reference Figure 1 , Figure 2 The vertical plate 4 is integrally formed with teeth 42 along the vertical direction. The end of the second rod 52 away from the sleeve 51 abuts against the teeth 42. The teeth 42 can be a triangular tooth structure. The end of the second rod 52 is a pointed shape that matches the teeth 42, which can better fit into the teeth and ensure the stability of the connection between the second rod 52 and the vertical plate 4. The relative position of the two can be finely adjusted as needed.

[0038] The implementation principle of this application embodiment is as follows:

[0039] In actual use, when the tower 7 is subjected to wind vibration, the push plate 3, which abuts against the outer wall of the tower 7, moves up and down with the swaying. The push plate 3, through the first rod 22, drives the elastic element 23 inside the sleeve 21 to extend and retract, absorbing and converting vibration energy and buffering part of the vibration. At the same time, the movement of the vertical plate 4 causes the second rod 52 of the support rod 5 to extend and retract inside the sleeve 51. The elastic element 53 buffers the energy, and the end of the second rod 52 is tightly abutted against the teeth 42 of the vertical plate 4 to ensure reliable support and prevent slippage. This provides reliable support and vibration reduction protection for the tower 7.

[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stable support for wind power generation, characterized in that: The base plate (1) has a mounting hole (11) at its center for the tower (7) to pass through. Several vibration damping components (2) are arranged in a circle around the mounting hole (11). Each vibration damping component (2) includes a sleeve (21) fixed to the base plate (1) and a rod (22) slidably inserted into the sleeve (21). An elastic element (23) is provided inside the sleeve (21). The two ends of the elastic element (23) are connected to the sleeve (21) and the rod (22) respectively. A push plate (3) is provided at the end of the rod (22) away from the sleeve (21) to abut against the outer wall of the tower (7).

2. The stable support for wind power generation according to claim 1, characterized in that: The sleeve (21) is provided with a slider (211). The base plate (1) is provided with a plurality of sliding grooves (12) arranged around the circumference of the slider (211) with the mounting hole (11) as the center. The slider (211) is provided with a fixing plate (212) that fits against the bottom surface of the base plate (1). The fixing plate (212) is provided with fixing bolts (2121).

3. The stable support for wind power generation according to claim 1, characterized in that: The push plate (3) is provided with a vertical plate (4) that can abut against the tower (7) in the up-down direction.

4. A stable support for wind power generation according to claim 3, characterized in that: The vertical plate (4) and the push plate (3) are provided with arc surfaces (41).

5. A stable support for wind power generation according to claim 4, characterized in that: The arc surface (41) is provided with an elastic pad (411).

6. A stable support for wind power generation according to claim 3, characterized in that: The sleeve (21) is provided with a support rod (5), and the end of the support rod (5) away from the sleeve (21) abuts against the vertical plate (4).

7. A stable support for wind power generation according to claim 6, characterized in that: The support rod (5) includes a sleeve two (51) rotatably connected to the sleeve one (21) and a rod two (52) slidably inserted into the sleeve two (51). An elastic element two (53) is provided inside the sleeve two (51), and the two ends of the elastic element two (53) are respectively connected to the sleeve two (51) and the rod two (52). The vertical plate (4) is provided with teeth (42) in the up-down direction, and the end of the rod two (52) away from the sleeve two (51) abuts against the teeth (42).

8. A stable support for wind power generation according to claim 7, characterized in that: The second rod (52) is provided with a baffle plate (521) that can abut against the second sleeve (51) to prevent the second elastic member (53) from being over-compressed.

9. A stable support for wind power generation according to claim 3, characterized in that: The base plate (1) is provided with a support platform (6) that abuts against the bottom surface of the push plate (3).

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