Elastic supporting device of wind turbine generator

Abstract

The utility model relates to the related technical field of wind turbine generator supports, in particular to a wind turbine generator elastic supporting device which comprises a base. A fixing box is fixedly connected to the top of the base, a buffer plate is arranged at the top of the fixing box, a sleeve is fixedly connected to the center of the bottom of the buffer plate, a telescopic rod is slidably connected to the center of the bottom of the sleeve, and the bottom end of the telescopic rod is fixedly connected with the base. Under the matching action of the base, the fixed box, the buffer plate, the sleeve, the telescopic rod and the force release mechanism, the buffer force of the supporting device can be adjusted according to the requirements of a user, and the problem that although an existing elastic supporting device for the wind turbine generator set can buffer the wind turbine generator set, the supporting device cannot buffer the wind turbine generator set is solved. The problem that the buffering effect of the device on the wind turbine generator is also reduced due to the fact that the elasticity of the spring is gradually reduced in the long-term use process of the spring in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine support, specifically to an elastic support device for wind turbines. Background Technology

[0002] A wind turbine is a unit consisting of a wind turbine and a generator driven by wind power. It generates electricity by converting the kinetic energy of the wind into electrical energy through wind rotation. A wind turbine includes a wind turbine and a generator; the wind turbine contains blades, a hub, and reinforcing components. During power generation, wind turbines must maintain a constant output frequency, which is essential for both grid-connected and wind-solar hybrid power generation. Types include grid-connected and off-grid wind turbines. However, wind turbines are susceptible to vibration during operation, thus requiring a flexible support device.

[0003] Utility model patent CN221373796U discloses an elastic support device for wind turbines, belonging to the technical field of wind turbine support. It addresses the problem in existing technologies where the support structure is rigidly connected to the wind turbine, easily leading to bending of parts and even collapse of the wind turbine, failing to meet daily usage requirements. However, it does not solve the problem of damage to the connection between the wind turbine and the turbine body when the wind turbine is subjected to vibration, affecting the operation of the wind turbine. The device includes a shell, with a connecting column fixedly connected inside. A connecting block is rotatably connected to the outer wall of the connecting column. A spring damper is fixedly connected to the outer wall of the connecting block. A connecting rod is fixedly connected to the top of the spring damper. Both ends of the connecting rod are fixedly connected to fixing blocks. A limit plate is fixedly connected to the outer wall of the fixing block. The outer wall of the limit plate is slidably connected to the inner wall of the shell, and a limit block is fixedly connected to the outer wall of the limit plate. In this invention, when the equipment is subjected to vibration, the impact force generated by the vibration is transmitted to the spring damper through the fixed block, and then the impact is buffered by the extension and contraction of the spring damper, so as to achieve the effect of buffering vibration and the wind turbine can operate smoothly.

[0004] However, the above patent still has shortcomings: although it can buffer the wind turbine, it does not have the function of adjusting the buffering force. As the spring's elasticity gradually decreases during long-term use, the buffering effect of the device on the wind turbine also decreases. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an elastic support device for wind turbines, which solves the problem mentioned in the background art that although the existing elastic support devices for wind turbines can buffer the wind turbines, they do not have the function of adjusting the buffering force. As the springs gradually lose elasticity during long-term use, the buffering effect of the device on the wind turbines also decreases.

[0006] The technical solution of this utility model is:

[0007] A wind turbine elastic support device includes: a base; a fixed box is fixedly connected to the top of the base, a buffer plate is provided on the top of the fixed box, a sleeve is fixedly connected to the bottom center of the buffer plate, a telescopic rod is slidably connected to the bottom center of the sleeve, and the bottom end of the telescopic rod is fixedly connected to the base; an adjustable buffering force relief mechanism is provided at one end of the telescopic rod located inside the sleeve; and auxiliary mechanisms to improve the buffering performance of the device on the wind turbine are provided at each of the four corners of the fixed box.

[0008] Preferably, the pressure relief mechanism includes: a piston fixedly connected to one end of the telescopic rod located inside the sleeve; a sealing ring fitted on the outer surface of the piston; the sealing ring being adapted to the inner wall of the sleeve; and guide holes being provided at the four corners of the piston's interior; a rotating sleeve threadedly connected to the top outer surface of the sleeve; a first spring provided at the bottom of the rotating sleeve; the first spring being fitted onto the outer surfaces of the sleeve and the rotating sleeve; and hydraulic oil filling the interior of the sleeve.

[0009] Preferably, the auxiliary mechanism includes: buffer rods slidably connected to the four corners of the fixed box; the top ends of the buffer rods are fixedly connected to the buffer plate; the bottom ends of the buffer rods are fixedly connected to the linkage plate; four second springs are provided between the fixed box and the buffer rods, and the second springs are respectively sleeved on the outer surface of the buffer rods; first fixing blocks are fixedly connected to the four bottom corners of the linkage plate; linkage rods are rotatably connected inside the first fixing blocks; second fixing blocks are rotatably connected to the ends of the linkage rods away from the first fixing blocks; sliders are fixedly connected to the bottom of the second fixing blocks; sliding rods are slidably connected inside the sliders; both ends of the sliding rods are fixedly connected to the tracks; the tracks are fixedly connected to the base; and a third spring is provided on one side of the slider, and the third springs are respectively sleeved on the outer surface of the sliding rods.

[0010] Preferably, the outer surface of the rotating sleeve is provided with a rubber pad with a groove on the surface, and the rubber pad is fixedly connected to the rotating sleeve.

[0011] Preferably, each of the four second springs has an elastic sheet on one side opposite to the other, and the two ends of the elastic sheet are fixedly connected to the fixed box and the buffer plate, respectively.

[0012] Preferably, a conical block is provided at the top of each of the two guide holes, the conical blocks are fixedly connected to the piston, a sealing bead is provided inside the conical block, the sealing bead is adapted to the conical block, and a conical spring is provided at the bottom of the sealing bead, the conical spring being respectively provided inside the conical block.

[0013] Preferably, mounting holes are provided at all four corners of the base.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Firstly, this utility model, through the combined action of the base, fixed box, buffer plate, sleeve, telescopic rod, and force relief mechanism, can adjust the buffering force of the support device according to the user's needs. This solves the problem that although the existing wind turbine elastic support device can buffer the wind turbine, it does not have the function of adjusting the buffering force. As the spring's elasticity gradually decreases during long-term use, the buffering effect of the device on the wind turbine also decreases.

[0016] Secondly, this utility model, through the combined action of the base, fixed box, buffer plate, sleeve, telescopic rod and auxiliary mechanism, can buffer the wind turbine by using multiple sets of springs in different directions and hydraulic oil in coordination, thereby improving the buffering effect of the wind turbine and solving the problem that the existing wind turbine elastic support device only uses springs to buffer the wind turbine and the buffering effect is not good. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an elastic support device for a wind turbine according to the present invention;

[0018] Figure 2 This is a side sectional view of the elastic support device for a wind turbine according to the present invention.

[0019] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the force-relieving mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the auxiliary mechanism structure of this utility model.

[0022] In the picture:

[0023] 1. Base; 2. Fixing box; 3. Buffer plate; 4. Sleeve; 5. Telescopic rod; 6. Pressure relief mechanism; 7. Auxiliary mechanism; 8. Piston; 9. Sealing ring; 10. Guide hole; 11. Rotating sleeve; 12. First spring; 13. Buffer rod; 14. Linkage plate; 15. Second spring; 16. First fixing block; 17. Linkage rod; 18. Second fixing block; 19. Slider; 20. Slide rod; 21. Track; 22. Third spring; 23. Rubber pad; 24. Elastic sheet; 25. Conical block; 26. Sealing bead; 27. Conical spring; 28. Mounting hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 5 The present invention will describe the above technical solution in detail through the following embodiments:

[0026] A wind turbine elastic support device includes: a base 1; a fixed box 2 is fixedly connected to the top of the base 1, a buffer plate 3 is provided on the top of the fixed box 2, a sleeve 4 is fixedly connected to the bottom center of the buffer plate 3, a telescopic rod 5 is slidably connected to the bottom center of the sleeve 4, and the bottom end of the telescopic rod 5 is fixedly connected to the base 1; an adjustable buffering force relief mechanism 6 is provided at one end of the telescopic rod 5 located inside the sleeve 4; and auxiliary mechanisms 7 are provided at the four corners of the fixed box 2 to improve the buffering performance of the device for the wind turbine. When the user installs the wind turbine on the buffer plate 3, when the wind turbine vibrates during operation, the buffer plate 3 is compressed by the weight of the wind turbine and the vibration force. The buffer plate 3 drives the sleeve 4 and the auxiliary mechanism 7. While the sleeve 4 slides downward on the outer surface of the telescopic rod 5, it is buffered by the force relief mechanism 6. The wind turbine is effectively buffered by the cooperation of the force relief mechanism 6 and the auxiliary mechanism 7.

[0027] like Figures 2 to 4As shown, the pressure relief mechanism 6 includes: a piston 8 fixedly connected to one end of the telescopic rod 5 inside the sleeve 4; a sealing ring 9 fitted on the outer surface of the piston 8, the sealing ring 9 being adapted to the inner wall of the sleeve 4; and guide holes 10 opened at the four corners of the piston 8; a rotating sleeve 11 threadedly connected to the top outer surface of the sleeve 4; a first spring 12 provided at the bottom of the rotating sleeve 11; the first spring 12 being fitted on the outer surfaces of the sleeve 4 and the rotating sleeve 11; and hydraulic oil filling the inside of the sleeve 4. As the buffer plate 3 moves downward, it drives the sleeve 4, causing the sleeve 4 to... As the piston 8 slides downwards, the sleeve 4 slides downwards on the surface of the piston 8. At the same time, the hydraulic oil at the top of the sleeve 4 slowly flows into the bottom of the sleeve 4 through the guide hole 10 inside the piston 8, thereby achieving the purpose of force relief and buffering. When the buffering force of the device weakens due to long-term use, the user rotates the rotating sleeve 11. As the rotating sleeve 11 rotates, it moves downwards on the surface of the sleeve 4. As the rotating sleeve 11 moves downwards, it compresses the first spring 12. After the first spring 12 is compressed, its own elasticity will also increase, thereby improving the buffering performance of the device.

[0028] like Figure 5 As shown, the auxiliary mechanism 7 includes: buffer rods 13 slidably connected to the four corners of the fixed box 2; the top ends of the buffer rods 13 are fixedly connected to the buffer plate 3; the bottom ends of the buffer rods 13 are fixedly connected to the linkage plate 14; four second springs 15 are provided between the fixed box 2 and the buffer rods 13, and the second springs 15 are respectively sleeved on the outer surface of the buffer rods 13; first fixing blocks 16 are fixedly connected to the four bottom corners of the linkage plate 14; linkage rods 17 are rotatably connected inside the first fixing blocks 16; second fixing blocks 18 are rotatably connected to the ends of the linkage rods 17 away from the first fixing blocks 16; sliders 19 are fixedly connected to the bottom of the second fixing blocks 18; slide rods 20 are slidably connected inside the sliders 19; both ends of the slide rods 20 are fixedly connected to the rails 21; and the rails 21 are fixedly connected to the base 1. Each side of the slider 19 is provided with a third spring 22, which is respectively sleeved on the outer surface of the slide rod 20. When the buffer plate 3 moves downward, it not only drives the buffer rod 13 to slide downward inside the fixed box 2, but also squeezes the second spring 15. When the buffer rod 13 moves downward, it drives the linkage plate 14. When the linkage plate 14 moves downward, it drives the first fixed block 16. The first fixed block 16 squeezes the top of the linkage rod 17, so that the bottom of the linkage rod 17 squeezes and pushes the second fixed block 18. The second fixed block 18 drives the slider 19, so that the slider 19 slides on the surface of the slide rod 20. When the slider 19 slides on the surface of the slide rod 20, it squeezes the third spring 22 through the track 21. The second spring 15 and the third spring 22 buffer and release the wind turbine through their own elasticity.

[0029] like Figure 4As shown, the outer surface of the rotating sleeve 11 is provided with a rubber pad 23 with a groove on the surface. The rubber pad 23 is fixedly connected to the rotating sleeve 11, which makes it convenient for the user to rotate the rotating sleeve 11 and avoids slippage.

[0030] like Figure 1 and Figure 2 As shown, each of the four second springs 15 has an elastic sheet 24 on one side opposite to the other. The two ends of the elastic sheet 24 are fixedly connected to the fixed box 2 and the buffer plate 3 respectively. When the buffer plate 3 moves downward, it squeezes the elastic sheet 24 with the cooperation of the fixed box 2. The elastic sheet 24 buffers the buffer plate 3 with its own elasticity.

[0031] like Figure 2 and Figure 3 As shown, the top of each of the two guide holes 10 is provided with a conical block 25, which is fixedly connected to the piston 8. The inside of each conical block 25 is provided with a sealing bead 26, which is adapted to the conical block 25. The bottom of each sealing bead 26 is provided with a conical spring 27, which is respectively located inside the conical block 25. When the buffer plate 3 rises and resets, the buffer plate 3 pulls the sleeve 4, causing the sleeve 4 to slide upward on the surface of the piston 8. This squeezes the hydraulic oil at the bottom of the sleeve 4 and flows through the guide hole 10 inside the piston 8 to the top of the sleeve 4. When the hydraulic oil flows through the guide hole 10, the conical spring 27 pushes the sealing bead 26, causing the sealing bead 26 to close with the conical block 25. This causes the two guide holes 10 inside the buffer plate 3 to automatically close when it resets, allowing the sleeve 4 to slowly reset and rise. This achieves a damping effect on the first spring 12, the second spring 15, the third spring 22, and the elastic sheet 24 inside the device.

[0032] like Figure 1 As shown, mounting holes 28 are provided at all four corners of the base 1 to facilitate the user in installing and fixing the device.

[0033] Working principle: The user installs the wind turbine on the buffer plate 3. When the wind turbine vibrates during operation, the buffer plate 3 is compressed by the weight of the wind turbine and the vibration. The buffer plate 3 drives the sleeve 4 and the buffer rod 13. The sleeve 4 slides downward on the piston 8 at the top of the telescopic rod 5. While the sleeve 4 slides downward on the piston 8, the hydraulic oil at the top of the sleeve 4 slowly flows into the bottom of the sleeve 4 through the guide hole 10 inside the piston 8, thereby achieving the purpose of force relief and buffering. When the buffering force of the device weakens due to long-term use, the user rotates the rotating sleeve 11. While rotating, the rotating sleeve 11 moves downward on the surface of the sleeve 4. As the rotating sleeve 11 moves downward, it simultaneously releases the first... When spring 12 is compressed, its elasticity increases, thus improving the buffering performance of the device. The buffering force of the support device can be adjusted according to the user's needs. This solves the problem that existing wind turbine elastic support devices, while capable of buffering wind turbines, lack the function of adjusting the buffering force. Furthermore, the elasticity of the spring gradually decreases over time, leading to a reduction in the device's buffering effect on the wind turbine. While the buffer rod 13 slides downwards inside the fixed box 2, it also compresses the second spring 15. The downward movement of the buffer rod 13 simultaneously drives the linkage plate 14, causing the linkage plate 14 to move downwards. Simultaneously, the first fixed block 16 is driven, which presses against the top of the linkage rod 17, causing the bottom of the linkage rod 17 to press against and push the second fixed block 18. The second fixed block 18 drives the slider 19, causing the slider 19 to slide on the surface of the slide rod 20. While sliding on the surface of the slide rod 20, the slider 19 presses against the third spring 22 through the track 21. The second spring 15 and the third spring 22 use their own elasticity to buffer and release the wind turbine. When the buffer plate 3 rises and resets, the buffer plate 3 pulls the sleeve 4, causing the sleeve 4 to slide upward on the surface of the piston 8, thereby squeezing the hydraulic oil at the bottom of the sleeve 4 and allowing it to flow through the guide hole 10 inside the piston 8 to the top of the sleeve 4. When hydraulic oil flows through the guide hole 10, the conical spring 27 pushes the sealing bead 26, causing the sealing bead 26 to close with the conical block 25. This causes two of the guide holes 10 inside the buffer plate 3 to automatically close when it resets, allowing the sleeve 4 to slowly reset and rise. This achieves a damping effect on the first spring 12, the second spring 15, the third spring 22, and the elastic sheet 24 inside the device. The wind turbine can be buffered by multiple sets of springs in different directions and hydraulic oil working together, which improves the buffering effect of the wind turbine and solves the problem that the existing wind turbine elastic support device only uses springs to buffer the wind turbine and the buffering effect is not good.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wind turbine elastic support device, comprising: Base (1); The base (1) is characterized in that: a fixed box (2) is fixedly connected to the top of the base (1), a buffer plate (3) is provided on the top of the fixed box (2), a sleeve (4) is fixedly connected to the bottom center of the buffer plate (3), a telescopic rod (5) is slidably connected to the bottom center of the sleeve (4), and the bottom end of the telescopic rod (5) is fixedly connected to the base (1). The telescopic rod (5) is provided with an adjustable buffering mechanism (6) at one end inside the sleeve (4); The four corners of the fixed box (2) are equipped with auxiliary mechanisms (7) to improve the buffering performance of the device on the wind turbine.

2. The wind turbine elastic support device as described in claim 1, characterized in that: The pressure relief mechanism (6) includes: The telescopic rod (5) is fixedly connected to a piston (8) at one end inside the sleeve (4). A sealing ring (9) is fitted on the outer surface of the piston (8). The sealing ring (9) is adapted to the inner wall of the sleeve (4). A guide hole (10) is opened at each of the four corners inside the piston (8). The top outer surface of the sleeve (4) is threaded with a rotating sleeve (11), and the bottom of the rotating sleeve (11) is provided with a first spring (12). The first spring (12) is sleeved on the outer surface of the sleeve (4) and the rotating sleeve (11), and the inside of the sleeve (4) is filled with hydraulic oil.

3. The wind turbine elastic support device as described in claim 1, characterized in that: The auxiliary mechanism (7) includes: The four corners of the fixed box (2) are slidably connected with buffer rods (13). The top of each buffer rod (13) is fixedly connected to the buffer plate (3), and the bottom of each buffer rod (13) is fixedly connected to the linkage plate (14). Four second springs (15) are provided between the fixed box (2) and the buffer rods (13). The second springs (15) are respectively sleeved on the outer surface of the buffer rods (13). The bottom four corners of the linkage plate (14) are fixedly connected to a first fixing block (16). The inside of the first fixing block (16) is rotatably connected to a linkage rod (17). The end of the linkage rod (17) away from the first fixing block (16) is rotatably connected to a second fixing block (18). The bottom of the second fixing block (18) is fixedly connected to a slider (19). The inside of the slider (19) is slidably connected to a slide rod (20). Both ends of the slide rod (20) are fixedly connected to a track (21). The track (21) is fixedly connected to the base (1). A third spring (22) is provided on one side of the slider (19). The third spring (22) is respectively sleeved on the outer surface of the slide rod (20).

4. The wind turbine elastic support device as described in claim 2, characterized in that: The outer surface of the rotating sleeve (11) is provided with a rubber pad (23) with a groove on the surface, and the rubber pad (23) is fixedly connected to the rotating sleeve (11).

5. The wind turbine elastic support device as described in claim 3, characterized in that: Each of the four second springs (15) has an elastic sheet (24) on one side opposite to the other. The two ends of the elastic sheet (24) are fixedly connected to the fixed box (2) and the buffer plate (3) respectively.

6. The wind turbine elastic support device as described in claim 2, characterized in that: Two of the flow guide holes (10) are provided with conical blocks (25) at their top ends. The conical blocks (25) are fixedly connected to the piston (8). The interior of each conical block (25) is provided with a sealing bead (26). The sealing bead (26) is adapted to the conical block (25). The bottom of each sealing bead (26) is provided with a conical spring (27). The conical spring (27) is respectively provided inside the conical block (25).

7. The wind turbine elastic support device as described in claim 1, characterized in that: Mounting holes (28) are provided at all four corners of the base (1).

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