Truss type tower of wind turbine generator and wind turbine generator

Abstract

The invention relates to the technical field of wind power generation, and discloses a truss type tower of a wind turbine generator and the wind turbine generator, the truss type tower comprises a plurality of longitudinal trusses, and a plurality of supporting rods are fixedly connected to the inner walls of the longitudinal trusses. The second fixing plate presses the belleville spring on the right side to deform, and potential energy is accumulated. When the torsional force stops and the inner ring stops moving, the belleville spring releases potential energy, so that the inner ring restores to the original position, and the situation that when the fan blades rotate, the generator set generates the torsional force around the axis direction of the tower frame is effectively prevented, and the torsional force can act on the truss type tower frame. Due to the fact that wind power changes rapidly and violently, torsional force can repeatedly act on the truss type tower, and the service life of the tower is shortened.

Description

Technical Field

[0001] This invention relates to the field of wind power generation technology, specifically to a truss-type tower and a wind turbine generator set. Background Technology

[0002] Wind power generation is developing towards larger scale and higher efficiency, but remote island areas are constrained by geographical environment and generally face the reality of scarce space resources. Conventional power generation facilities require a large land area. Photovoltaic power generation and offshore wind power generation have become common clean energy solutions. However, the transportation of large wind turbine units is limited by multiple factors and has low practical feasibility. Therefore, small and medium-sized wind power devices with better adaptability have gradually become the preferred solution in this region. Truss towers can be completely disassembled and assembled locally, effectively adapting to the special needs of limited local space and inconvenient transportation. For small and medium-sized wind turbines that are fixed in a truss configuration, when the blades rotate, the generator set will generate a torsional force around the tower axis. This torsional force will act on the truss tower. Due to the rapid and drastic changes in wind force, the torsional force will act on the truss tower repeatedly, thereby reducing the service life of the tower connection. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a truss-type tower for a wind turbine and a wind turbine, comprising a plurality of longitudinal trusses, wherein a plurality of support rods are fixedly connected to the inner wall of the longitudinal trusses, and further comprising: The fixing mechanism is fixedly connected to the inner wall of the longitudinal truss; The inner ring mechanism is fixedly installed inside the fixed mechanism. The telescopic mechanism is fixedly installed inside the fixed mechanism. There are four longitudinal trusses, which form a rectangle. The four longitudinal trusses are fixed together by several support rods. The fixing mechanism divides the four longitudinal trusses into upper and lower parts.

[0004] Preferably, the fixing mechanism includes: The fixing component is fixedly connected to the outer wall of the longitudinal truss; The outer ring component is fixedly connected to the inner wall of the fixed component.

[0005] Preferably, the inner ring mechanism includes: The movable component is fixedly connected to the inner wall of the fixed component; The slotted assembly is fixedly connected to the inner wall of the movable assembly.

[0006] Preferably, the telescopic mechanism includes: A limiting component is fixedly connected to the inner wall of the movable component; The elastic component is slidably connected to the inner wall of the limiting component.

[0007] Preferably, the fixing assembly includes two connecting plates 1 fixedly connected to the inner wall of the longitudinal truss, and connecting plates 2 fixedly connected to the sides of the two connecting plates 1 that are close to each other; a movable plate is fixedly connected to the outer wall of the lower connecting plate 2. The longitudinal truss is divided into upper and lower parts. Two connecting plates are fixedly connected to the upper and lower parts of the longitudinal truss, respectively. Connecting plate one and connecting plate two are fixedly connected by bolts.

[0008] Preferably, the outer ring assembly includes an outer ring fixedly connected to the outer wall of the connecting plate two, and an inclined surface is provided on the inner wall of the outer ring; The outer ring is fixedly connected to the outer wall of the longitudinal truss located below, and the inclined surface contracts inward.

[0009] Preferably, the movable component includes an inner ring fixedly connected to the outer wall of the connecting plate two, and the outer wall of the inner ring is provided with an inclined surface two; The inner ring is fixedly connected to the outer wall of the longitudinal truss located above, and the inclined surface protrudes outward.

[0010] Preferably, the slot assembly includes two movable slots 1 formed in the inner wall of the inner ring, and a fixing plate 1 is fixedly connected to the inner wall of each of the two movable slots 1. Among them, the two movable slots are set in a mirror image, and the two fixed plates are set in a mirror image.

[0011] Preferably, the limiting component includes two fixed plates two that are fixedly connected to the inner walls of two fixed plates one, and the inner walls of the two fixed plates two are respectively provided with movable grooves two; The two fixing plates are set in a mirror image; The elastic component includes two movable rods fixedly connected to the outer wall of the movable plate. A butterfly spring is fitted onto the outer wall of each of the two movable rods, and the side of the butterfly spring furthest from the fixed plate is fixedly connected to the movable plate. The disc spring is fixedly connected to the fixed plate on the side closest to the fixed plate, while the outer wall of the movable rod is slidably connected to the fixed plate.

[0012] Preferably, a wind turbine generator set includes a wind turbine generator set fixedly connected to the top of a longitudinal truss, and a number of fan blades are fixedly connected to the outer wall of the wind turbine generator set.

[0013] The present invention has the following beneficial effects: (1) In this invention, the longitudinal truss is divided into upper and lower parts, and two connecting plates are fixedly connected to the upper and lower parts of the longitudinal truss respectively. Connecting plate one and connecting plate two are fixedly connected by bolts. When the fan blades rotate, the wind turbine will be driven to twist around the longitudinal truss. Since the wind turbine is fixedly connected to the upper part of the longitudinal truss, the torsional force will be transmitted to the upper connecting plate one. The upper connecting plate one will drive the upper connecting plate two to move. Since the four longitudinal trusses are fixed in a rectangle, the longitudinal truss in the upper part will be displaced. The truss undergoes a slight relative rotation at the connection between the upper and lower parts. Since the inner ring is fixedly connected to the upper connecting plate two, it also shifts along with the upper longitudinal truss. The outer ring is fixed to the lower connecting plate two, and the lower longitudinal truss is fixed to the ground, so connecting plate two remains stationary. Because the outer ring is elliptical and the inner ring is circular, the inner ring can slide to a certain extent within the outer ring. When the inner ring slides within the inclined surface one, the moving plate is fixed to the outer wall of the lower connecting plate two, and the fixed plate two is fixed to the inner wall of the inner ring. Figure 8 When the inner ring moves to the left, the fixed plate two compresses the butterfly spring on the right, deforming it and accumulating potential energy. The length of the movable rod extending out of the fixed plate two increases. When the torsional force stops and the inner ring stops moving, the butterfly spring releases its potential energy, thus restoring the inner ring to its original position. Similarly, when the inner ring moves to the right, the butterfly spring on the left accumulates potential energy. When the torsional force generated by the rotation of the fan blades acts on the longitudinal truss connection, the rigid connection is set as a flexible connection. Through the application of the above components, the torsional force generated by the generator set around the tower axis when the fan blades rotate is effectively prevented. The torsional force will act on the truss tower. The wind force changes rapidly and drastically, and the torsional force will repeatedly act on the truss tower, thus reducing the tower's lifespan. (2) This invention utilizes the characteristic of the inner ring sliding within the outer ring. Because the outer ring is elliptical in shape, the top of the two inclined surfaces on the outer ring tends to open inwards, presenting a shape as described above. Figure 7 In the state of G, the inner diameter of the upper part of the outer ring is larger than that of the lower part, the inner ring is circular, and the top of the inclined surface on the inner ring tends to taper inward, presenting a shape like... Figure 7 In the state of H, that is, the inner diameter of the upper part of the inner ring is smaller than that of the lower part. When the inner ring has an upward tendency, it cannot move upward due to the restriction of the inclined surface one on the outer ring. When the external wind blows towards the tower, the four longitudinal trusses will show that the longitudinal truss that comes into contact with the wind first moves upward and the longitudinal truss that comes into contact with the wind later moves downward. That is, the four longitudinal trusses in the upper part are offset in the direction of the wind. Since the inner ring is restricted by the inclined surface one, the upward tendency of the inner ring is suppressed, so that the upper part of the four longitudinal trusses remains perpendicular to the lower part. Through the application of the above components, the problem of the tower joint tilting when a lateral wind blows directly towards the tower, which would lead to the tower collapsing, is effectively prevented. (3) The present invention utilizes the characteristic of the inner ring of the above-mentioned device to compress and deform the disc spring. When the movable rod moves towards the fixed plate, the disc spring is compressed and the spring plate becomes flatter, making compression more and more difficult. When the disc spring is compressed to a certain extent, it will deform and fail. The fixed plate is set so that when the movable rod extends a certain distance, it contacts the fixed plate and is restricted by the fixed plate, making the disc spring unable to continue to compress. Through the application of the above components, the problem of continuous and violent strong winds exceeding the fan blade adjustment speed is effectively prevented. At this time, the tower will be subjected to continuous torsion in one direction, which will exceed the upper limit of the device adjustment and cause the device to be damaged. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a schematic cross-sectional view of a partial structure of the present invention; Figure 4 This is a cross-sectional schematic diagram of the fixing mechanism of the present invention; Figure 5 This is a schematic cross-sectional view of the inner ring mechanism of the present invention; Figure 6 This is a schematic cross-sectional view of the inner ring mechanism of the present invention; Figure 7 For the present invention Figure 6 A magnified structural diagram of A in the middle; Figure 8 This is a cross-sectional schematic diagram of the telescopic mechanism of the present invention.

[0016] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Fixing mechanism; 11. Fixing component; 12. Outer ring component; 13. Longitudinal truss; 14. Support rod; 15. Wind turbine; 16. Fan blade; 111. Connecting plate one; 112. Connecting plate two; 113. Moving plate; 121. Outer ring; 122. Inclined surface one; 2. Inner ring mechanism; 21. Movable component; 22. Slot assembly; 211. Inner ring; 212. Inclined surface two; 221. Movable slot one; 222. Fixing plate one; 3. Telescopic mechanism; 31. Limiting component; 32. Elastic component; 311. Fixing plate two; 312. Movable slot two; 321. Movable rod; 322. Butterfly spring. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1, please refer to Figures 1-4 The present invention relates to a truss-type tower and a wind turbine generator, comprising a plurality of longitudinal trusses 13, wherein a plurality of support rods 14 are fixedly connected to the inner wall of the longitudinal trusses 13, and further comprising: Fixing mechanism 1 is fixedly connected to the inner wall of the longitudinal truss 13; Inner ring mechanism 2 is fixedly installed inside the fixed mechanism 1; Telescopic mechanism 3 is fixedly installed inside the fixed mechanism 1; There are four longitudinal trusses 13, which form a rectangle. The four longitudinal trusses 13 are fixed together by several support rods 14. The fixing mechanism 1 divides the four longitudinal trusses 13 into upper and lower parts respectively.

[0019] Fixed mechanism 1 includes: Fixing component 11 is fixedly connected to the outer wall of the longitudinal truss 13; Outer ring component 12 is fixedly connected to the inner wall of fixed component 11.

[0020] Inner ring mechanism 2 includes: The movable component 21 is fixedly connected to the inner wall of the fixed component 11; The slotted assembly 22 is fixedly connected to the inner wall of the movable assembly 21.

[0021] The telescopic mechanism 3 includes; Limiting component 31 is fixedly connected to the inner wall of movable component 21; The elastic component 32 is slidably connected to the inner wall of the limiting component 31.

[0022] Example 2, please refer to Figures 3-8 This invention relates to a truss-type tower and a wind turbine generator. Based on Example 1, the fixing component 11 includes two connecting plates 111 fixedly connected to the inner wall of the longitudinal truss 13, and connecting plates 112 fixedly connected to the sides of the two connecting plates 111 that are close to each other; a movable plate 113 is fixedly connected to the outer wall of the lower connecting plate 112. The longitudinal truss 13 is divided into upper and lower parts. Two connecting plates 111 are fixedly connected to the upper and lower parts of the longitudinal truss 13 respectively. Connecting plate 111 and connecting plate 112 are fixedly connected by bolts.

[0023] The outer ring assembly 12 includes an outer ring 121 fixedly connected to the outer wall of the connecting plate 112, and an inclined surface 122 is provided on the inner wall of the outer ring 121. The outer ring 121 is fixedly connected to the outer wall of the longitudinal truss 13 located below, and the inclined surface 122 preferably tapers inward.

[0024] The active component 21 includes an inner ring 211 fixedly connected to the outer wall of the connecting plate 212, and the outer wall of the inner ring 211 is provided with an inclined surface 212. Among them, the inner ring 211 is fixedly connected to the outer wall of the longitudinal truss 13 located above, and the inclined surface 212 protrudes outward; Because the outer ring 121 is elliptical in shape, the top of the inclined surface 212 on the outer ring 121 tends to open inward, presenting a shape like... Figure 7 In the state of G, the upper inner diameter of the outer ring 121 is larger than the lower diameter, the inner ring 211 is circular, and the top of the inclined surface 212 on the inner ring 211 tends to taper inward, presenting a shape like... Figure 7 In the state of H, that is, the upper inner diameter of the inner ring 211 is smaller than that of the lower part. When the inner ring 211 is inclined to move upward, it cannot move upward due to the restriction of the inclined surface 122 on the outer ring 121. When the external wind blows towards the tower, the four longitudinal trusses 13 will show that the longitudinal truss 13 that first comes into contact with the wind moves upward and the longitudinal truss 13 that comes into contact with the wind moves downward. That is, the four longitudinal trusses 13 in the upper part are offset in the direction of the wind. Since the inner ring 211 is restricted by the inclined surface 122, the upward trend of the inner ring 211 is suppressed, so that the upper part of the four longitudinal trusses 13 remains perpendicular to the lower part.

[0025] The slot assembly 22 includes two movable slots 221 formed on the inner wall of the inner ring 211, and a fixing plate 222 is fixedly connected to the inner wall of each of the two movable slots 221. Among them, the two movable slots 221 are set in a mirror image, and the two fixed plates 222 are set in a mirror image.

[0026] The limiting component 31 includes two fixing plates 311 that are fixedly connected to the inner walls of the two fixing plates 222 respectively, and the inner walls of the two fixing plates 311 are respectively provided with movable grooves 312. Among them, the two fixing plates 2311 are set in a mirror image; The elastic component 32 includes two movable rods 321 fixedly connected to the outer wall of the movable plate 113. A butterfly spring 322 is fitted onto the outer wall of each of the two movable rods 321. The side of the butterfly spring 322 furthest from the fixed plate 311 is fixedly connected to the movable plate 113. Among them, the side of the butterfly spring 322 near the fixed plate 311 is fixedly connected to the fixed plate 311, and the outer wall of the movable rod 321 is slidably connected to the fixed plate 311. The longitudinal truss 13 is divided into upper and lower parts. Two connecting plates 111 are fixedly connected to the upper and lower parts of the longitudinal truss 13, respectively. Connecting plate 111 and connecting plate 112 are fixedly connected by bolts. When the fan blade 16 rotates, it will cause the wind turbine 15 to twist around the longitudinal truss 13. Because the wind turbine 15 is fixedly connected to the upper part of the longitudinal truss 13, the torsional force will be transmitted to the upper connecting plate 111. The upper connecting plate 111 will cause the upper connecting plate 112 to shift. Since the four longitudinal trusses 13 are fixed in a rectangle, the upper part of the longitudinal truss 13 will shift at the connection between the upper and lower parts. With slight relative rotation, since the inner ring 211 is fixedly connected to the upper connecting plate 112, the inner ring 211 will also shift along with the upper longitudinal truss 13. The outer ring 121 is fixed to the lower connecting plate 112, and the lower longitudinal truss 13 is fixed to the ground, so the connecting plate 112 is stationary. Because the outer ring 121 is elliptical and the inner ring 211 is circular, the inner ring 211 can slide to a certain extent within the outer ring 121. When the inner ring 211 slides within the inclined surface 122, since the moving plate 113 is fixed to the outer wall of the lower connecting plate 112 and the fixing plate 311 is fixed to the inner wall of the inner ring 211, as shown... Figure 8When the inner ring 211 moves to the left, the fixed plate 2 311 compresses the butterfly spring 322 located on the right side, deforms, and accumulates potential energy. The length of the movable rod 321 extending out of the fixed plate 2 311 increases. When the torsional force stops and the inner ring 211 stops moving, the butterfly spring 322 releases its potential energy, thereby allowing the inner ring 211 to return to its original position. Similarly, when the inner ring 211 moves to the right, the butterfly spring 322 located on the left side accumulates potential energy. When the torsional force generated by the rotation of the fan blade 16 acts on the connection of the longitudinal truss 13, the rigid connection is set as a flexible connection.

[0027] A wind turbine generator set includes a wind turbine generator set 15 fixedly connected to the top of a longitudinal truss 13, and a plurality of fan blades 16 fixedly connected to the outer wall of the wind turbine generator set 15.

[0028] One specific application of this embodiment is as follows: In use, the longitudinal truss 13 and support rod 14 are assembled, and then the wind turbine 15 and fan blade 16 are installed on the top of the longitudinal truss 13, and the columns are fixed with bolts. The longitudinal truss 13 is divided into upper and lower parts. Two connecting plates 111 are fixedly connected to the upper and lower parts of the longitudinal truss 13, respectively. Connecting plate 111 and connecting plate 112 are fixedly connected by bolts. When the fan blade 16 rotates, it will cause the wind turbine 15 to twist around the longitudinal truss 13. Because the wind turbine 15 is fixedly connected to the upper part of the longitudinal truss 13, the torsional force will be transmitted to the upper connecting plate 111. The upper connecting plate 111 will cause the upper connecting plate 112 to shift. Since the four longitudinal trusses 13 are fixed in a rectangle, the upper part of the longitudinal truss 13 will shift at the connection between the upper and lower parts. With slight relative rotation, since the inner ring 211 is fixedly connected to the upper connecting plate 112, the inner ring 211 will also shift along with the upper longitudinal truss 13. The outer ring 121 is fixed to the lower connecting plate 112, and the lower longitudinal truss 13 is fixed to the ground, so the connecting plate 112 is stationary. Because the outer ring 121 is elliptical and the inner ring 211 is circular, the inner ring 211 can slide to a certain extent within the outer ring 121. When the inner ring 211 slides within the inclined surface 122, since the moving plate 113 is fixed to the outer wall of the lower connecting plate 112 and the fixing plate 311 is fixed to the inner wall of the inner ring 211, as shown... Figure 8When the inner ring 211 moves to the left, the fixed plate 2 311 compresses the butterfly spring 322 located on the right side, deforming and accumulating potential energy. The length of the movable rod 321 extending out of the fixed plate 2 311 increases. When the torsional force stops and the inner ring 211 stops moving, the butterfly spring 322 releases its potential energy, thereby allowing the inner ring 211 to return to its original position. Similarly, when the inner ring 211 moves to the right, the butterfly spring 322 located on the left side accumulates potential energy. When the torsional force generated by the rotation of the fan blade 16 acts on the connection of the longitudinal truss 13, the rigid connection is set as a flexible connection, which effectively prevents the generator set from generating a torsional force around the tower axis when the fan blade rotates. The torsional force will act on the truss tower. The wind force changes rapidly and drastically, and the torsional force will repeatedly act on the truss tower, thus reducing the tower's lifespan. Utilizing the characteristic that the inner ring 211 slides within the outer ring 121, and because the outer ring 121 is elliptical in shape, the top of the inclined surface 212 on the outer ring 121 tends to open inward, presenting a shape as described above. Figure 7 In the state of G, the upper inner diameter of the outer ring 121 is larger than the lower diameter, the inner ring 211 is circular, and the top of the inclined surface 212 on the inner ring 211 tends to taper inward, presenting a shape like... Figure 7 In the state of H, that is, the upper inner diameter of the inner ring 211 is smaller than that of the lower part. When the inner ring 211 has an upward tendency, it cannot move upward due to the restriction of the inclined surface 122 on the outer ring 121. When the external wind blows towards the tower, the four longitudinal trusses 13 will show that the longitudinal truss 13 that first comes into contact with the wind is upward, and the longitudinal truss 13 that comes into contact with the wind later is downward. That is, the four longitudinal trusses 13 in the upper part are offset towards the direction of the wind. Since the inner ring 211 is restricted by the inclined surface 122, the upward tendency of the inner ring 211 is suppressed. This keeps the upper part of the four longitudinal trusses 13 perpendicular to the lower part, effectively preventing the tower from tilting at the connection when a lateral wind blows directly towards the tower, which could lead to the tower collapsing. Utilizing the characteristic of the inner ring 211 moving and compressing the disc spring 322 to deform, as the movable rod 321 moves closer to the fixed plate 222, the disc spring 322 becomes increasingly difficult to compress as the spring plates flatten. When compressed to a certain extent, the disc spring 322 deforms and fails. The fixed plate 222 prevents the disc spring 322 from continuing to compress when the movable rod 321 extends a certain distance and contacts it. This effectively prevents damage to the device caused by continuous, strong winds exceeding the fan blade adjustment speed, which could lead to continuous unidirectional torsion of the tower and exceed the device's adjustment limit.

[0029] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A truss-type tower for a wind turbine, comprising a plurality of longitudinal trusses (13), wherein a plurality of support rods (14) are fixedly connected to the inner wall of the longitudinal trusses (13), characterized in that, Also includes: A fixing mechanism (1) is fixedly connected to the inner wall of the longitudinal truss (13); Inner ring mechanism (2), which is fixedly installed inside the fixed mechanism (1); Telescopic mechanism (3), which is fixedly installed inside the fixed mechanism (1); There are four longitudinal trusses (13), which form a rectangle. The four longitudinal trusses (13) are fixed together by several support rods (14). The fixing mechanism (1) divides the four longitudinal trusses (13) into upper and lower parts respectively.

2. The truss-type tower of a wind turbine according to claim 1, characterized in that: The fixing mechanism (1) includes: A fixing component (11) is fixedly connected to the outer wall of the longitudinal truss (13); Outer ring assembly (12), which is fixedly connected to the inner wall of the fixed assembly (11).

3. The truss-type tower of a wind turbine according to claim 2, characterized in that: The inner ring mechanism (2) includes: The active component (21) is fixedly connected to the inner wall of the fixed component (11); Slot assembly (22), which is fixedly connected to the inner wall of movable assembly (21).

4. The truss-type tower of a wind turbine according to claim 3, characterized in that: The telescopic mechanism (3) includes: A limiting component (31) is fixedly connected to the inner wall of the movable component (21); An elastic component (32) is slidably connected to the inner wall of the limiting component (31).

5. The truss-type tower of a wind turbine according to claim 4, characterized in that: The fixing component (11) includes two connecting plates (111) fixedly connected to the inner wall of the longitudinal truss (13), and connecting plates (112) are fixedly connected to each other on the side of the two connecting plates (111) that are close to each other; a movable plate (113) is fixedly connected to the outer wall of the lower connecting plate (112). The longitudinal truss (13) is divided into upper and lower parts. Two connecting plates (111) are fixedly connected to the upper and lower parts of the longitudinal truss (13) respectively. The connecting plate (111) and the connecting plate (112) are fixedly connected by bolts.

6. The truss-type tower of a wind turbine according to claim 5, characterized in that: The outer ring assembly (12) includes an outer ring (121) fixedly connected to the outer wall of the connecting plate two (112), and an inclined surface (122) is provided on the inner wall of the outer ring (121). The outer ring (121) is fixedly connected to the outer wall of the longitudinal truss (13) located below, and the inclined surface (122) contracts inward.

7. A truss-type tower for a wind turbine according to claim 5, characterized in that: The active component (21) includes an inner ring (211) fixedly connected to the outer wall of the connecting plate two (112), and the outer wall of the inner ring (211) is provided with an inclined surface two (212). The inner ring (211) is fixedly connected to the outer wall of the longitudinal truss (13) located above, and the inclined surface (212) protrudes outward.

8. The truss-type tower of a wind turbine according to claim 7, characterized in that: The slot assembly (22) includes two movable slots (221) formed on the inner wall of the inner ring (211), and a fixing plate (222) is fixedly connected to the inner wall of each of the two movable slots (221). Among them, the two active slots (221) are set in a mirror image, and the two fixed plates (222) are set in a mirror image.

9. A truss-type tower for a wind turbine according to claim 8, characterized in that: The limiting component (31) includes two fixing plates (311) that are fixedly connected to the inner walls of two fixing plates (222) respectively, and the inner walls of the two fixing plates (311) are respectively provided with movable grooves (312). Among them, the two fixing plates (311) are set in a mirror image; The elastic component (32) includes two movable rods (321) fixedly connected to the outer wall of the movable plate (113). The outer walls of the two movable rods (321) are respectively fitted with butterfly springs (322). The butterfly springs (322) are fixedly connected to the movable plate (113) on the side away from the fixed plate (311). Among them, the butterfly spring (322) is fixedly connected to the fixed plate two (311) on the side close to the fixed plate two (311), and the outer wall of the movable rod (321) is slidably connected to the fixed plate two (311).

10. A wind turbine generator set, comprising a wind turbine generator set (15) fixedly connected to the top of a longitudinal truss (13), wherein a plurality of fan blades (16) are fixedly connected to the outer wall of the wind turbine generator set (15).

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