Wind driven generator structure convenient to maintain

Abstract

The invention relates to the technical field of wind power generation, in particular to a convenient-to-maintain wind driven generator structure which comprises a column base, an outer cylinder is fixedly mounted at the upper end of the column base, a disc is fixedly connected to the inner wall of the outer cylinder, and a generator body is fixedly mounted at the upper end of the disc. The three paddles can be quickly and simply stored on the outer cylinder, so that the occupied space is reduced, the paddle can be conveniently transported or carried to a maintenance station, the maintenance operation efficiency is indirectly improved, and convenience is further provided for the maintenance operation. And meanwhile, the connection parts between the three blades and the outer cylinder do not influence the rotation of the three blades to enable the generator main body to generate electric power, so that the use is convenient. And meanwhile, the three paddles can be quickly unfolded for use. The three blades can be conveniently operated and stopped in time under the condition of wind or strong wind, the three blades can slowly stop rotating, corresponding personnel can carry out maintenance operation without hindrance, and convenience is provided for the maintenance operation.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and specifically to a structure of a wind turbine generator facilitating maintenance. Background Art

[0002] Wind power generation converts the kinetic energy of wind into electrical energy. Wind is a renewable energy source, which is converted into electrical energy through a wind turbine generator, thereby providing electricity for life. A small vertical-axis wind turbine generator is a wind power generation device specially designed for small-scale power generation, whose rotating shaft is perpendicular to the ground. Usually, its power is relatively small, generally between a few hundred watts and dozens of kilowatts, and it is mainly used to meet the power needs of some small users or specific scenarios, such as families, outdoor play, etc.

[0003] A small vertical-axis wind turbine generator mainly consists of a main frame, a generator, and multiple blades. The multiple blades will be driven by the wind to rotate, and can drive the output shaft of the generator to rotate, so that the coils inside the generator make a cutting magnetic induction line movement in the magnetic field, thereby generating electrical energy.

[0004] However, when a fault occurs during the use of the above generator in the wild, if the multiple blades are still in the state of being driven by the wind to rotate, especially in windy weather, the rotation speed of the multiple blades will be even faster. When the relevant personnel approach the generator for maintenance, it is inconvenient to quickly stop the multiple blades. The rotating blades will affect the maintenance operation. If tools are used to forcibly stop the blades, the blades are likely to be damaged, thus bringing inconvenience to the maintenance work. At the same time, the multiple blades are fixedly connected to the rotating part of the main frame through brackets, and there is a long distance between each blade and the main frame, making the above generator occupy a large space. If the above generator used in the wild breaks down and there is a lack of professional tools for maintenance on site, it is necessary to carry the above generator to the maintenance station for maintenance. However, the above generator occupies a large space and is inconvenient to carry and transport, which will also indirectly bring inconvenience to the maintenance work. Summary of the Invention

[0005] The purpose of the present invention is to provide a structure of a wind turbine generator facilitating maintenance, so as to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A wind turbine structure facilitating maintenance, including a column base, an outer cylinder is fixedly installed at the upper end of the column base, a disc is fixedly connected to the inner wall of the outer cylinder, a generator main body is fixedly installed at the upper end of the disc, an output shaft end of the generator main body is fixedly connected to a turntable, the lower end of the turntable is rotatably connected to the upper end of the outer cylinder, a third rotating ring is slidably sleeved on the middle part of the outer wall of the outer cylinder, a limiting mechanism and an elastic mechanism are respectively arranged between the third rotating ring and the outer cylinder, a first rotating ring is rotatably sleeved on the outer wall of the outer cylinder near the lower edge, three blades are arranged outside the outer cylinder, a telescopic mechanism is arranged between each of the third rotating ring, the first rotating ring and each blade, a braking mechanism is arranged inside the outer cylinder, and a connecting mechanism is arranged between the third rotating ring and the turntable.

[0007] Preferably, the limiting mechanism includes a groove and two annular grooves. The groove is opened on the inner ring surface of the third rotating ring, and a triangular block is slidably inserted into the groove. One end of the triangular block away from the outer cylinder is fixedly connected to a pull rod. The pull rod movably penetrates through the outer ring surface of the third rotating ring, and a third spring is slidably sleeved on the outer wall of the pull rod. The third spring is fixedly connected between the triangular block and the groove. The two annular grooves are symmetrically opened on the outer wall of the outer cylinder from top to bottom. The tip of the triangular block is inside the lower annular groove, and the lower end of the triangular block is in contact with the bottom of the lower annular groove.

[0008] Preferably, the elastic mechanism includes a second rotating ring. The second rotating ring is rotatably sleeved on the upper edge of the outer wall of the outer cylinder, and a first spring is fixedly connected to the lower end of the second rotating ring. The lower end of the first spring is fixedly connected to the upper end of the third rotating ring, and the first spring is slidably sleeved on the outer wall of the outer cylinder.

[0009] Preferably, the telescopic mechanism includes a connecting rod, a connecting frame and two support plates. The two support plates are symmetrically and fixedly sleeved on the outer wall of the blade from top to bottom. One end of the connecting rod and the connecting frame are respectively rotatably connected to the outer ring surfaces of the third rotating ring and the first rotating ring. The connecting rod is inside the connecting frame, and the middle parts of the connecting rod and the connecting frame are rotatably connected to each other. The other end of the connecting rod is rotatably connected to the lower support plate. The other end of the connecting frame is rotatably connected to a sliding plate. The sliding plate is slidably sleeved on the outer walls of two connecting columns. The two connecting columns are fixedly connected between the two support plates.

[0010] Preferably, the braking mechanism includes two splicing columns, which are symmetrically and slidably inserted into the inner wall of the edge of the disc. The upper ends of the two splicing columns are fixedly connected together with a rubber ring. The upper end surface of the rubber ring is close to the lower end surface of the turntable. The lower ends of the two splicing columns both movably penetrate through the lower end of the outer cylinder, and the lower ends of the two splicing columns are fixedly connected together with a splicing ring. The lower end of the splicing ring is fixedly connected with a collar. Both the collar and the splicing ring are slidably sleeved on the outer wall of the column base. A locking mechanism is provided between the collar and the column base.

[0011] Preferably, the braking mechanism further includes two connecting rings, which are respectively fixedly sleeved on the outer walls of the two splicing columns. The lower ends of the two connecting rings are respectively in contact with the inner bottom end of the outer cylinder, and a fourth spring is fixedly connected between the upper ends of the two connecting rings and the disc. The two fourth springs are respectively slidably sleeved on the outer walls of the two splicing columns.

[0012] Preferably, the locking mechanism includes an L-shaped plate, which is fixedly connected to the outer wall of the column base. The horizontal wall of the L-shaped plate is in contact with the lower end of the collar. A bolt is slidably inserted through the vertical wall of the L-shaped plate. The bolt movably penetrates through the collar, and one end of the bolt is slidably inserted into the inner wall of the column base. A fixing ring is fixedly sleeved on the outer wall of the bolt. One end of the fixing ring is in contact with the outer ring surface of the collar, and a second spring is fixedly connected between the other end of the fixing ring and the vertical wall of the L-shaped plate. The second spring is slidably sleeved on the outer wall of the bolt.

[0013] Preferably, the connecting mechanism includes three fixing blocks, which are evenly distributed and fixedly connected to the outer wall of the turntable. The lower ends of the three fixing blocks are all fixedly connected with guide posts. Sliders are slidably sleeved on the outer walls of the three guide posts. One ends of the three sliders are fixedly connected to the outer ring surface of the third rotating ring.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the mutual cooperation of the column base, the outer cylinder, the disc, the generator main body, the turntable, the third rotating ring, the limiting mechanism, the elastic mechanism, the first rotating ring, the blades, the telescopic mechanism and the connecting mechanism, when a failure occurs during the use of this small vertical-axis wind turbine in the wild, if it cannot be completely repaired on site, the three blades can be quickly and simply stored on the outer cylinder, reducing the occupied space, facilitating transportation or carrying to the maintenance station, indirectly improving the maintenance operation efficiency, and further providing convenience for the maintenance operation. At the same time, the connecting components between the three blades and the outer cylinder will not affect the rotation of the three blades to generate electricity for the generator main body, which is convenient to use. At the same time, the three blades can also be quickly unfolded for use.

[0015] 2. Through the mutual cooperation of the braking mechanism and the locking mechanism, when a failure occurs during the field use of this small vertical-axis wind turbine, the three blades can be conveniently and timely stopped in the presence of wind or strong wind. The three blades will slowly stop rotating, and the corresponding personnel can perform maintenance operations unhindered, providing convenience for maintenance operations. Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure at the outer cylinder of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of the structure at A in Figure 4 It is a partial cross-sectional view of three places of the swivel ring of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of the structure at B in Figure 6 It is a partial cross-sectional view of the turntable, outer cylinder and column base of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at C in Figure 8 For the present invention Figure 6 Enlarged view of the structure at D in

[0017] In the drawings, the list of components represented by each reference numeral is as follows: 1. Turntable; 2. Outer cylinder; 3. Blade; 4. Support plate; 5. Connecting rod; 6. Connecting frame; 7. Column base; 8. Collar; 9. Swivel ring one; 10. Splicing ring; 11. Swivel ring two; 12. Spring one; 13. Swivel ring three; 14. Slide block; 15. Guide post; 16. Fixed block; 17. Connecting column; 18. Slide plate; 19. Fixed ring; 20. Spring two; 21. L-shaped plate; 22. Plug; 23. Annular groove; 24. Triangular block; 25. Spring three; 26. Groove; 27. Pull rod; 28. Generator main body; 29. Rubber ring; 30. Disc; 31. Splicing column; 32. Spring four; 33. Connecting ring. Detailed Embodiment

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] The present invention provides a technical solution: As Figures 1-8A wind turbine structure facilitating maintenance is shown, including a column base 7. An outer cylinder 2 is fixedly installed at the upper end of the column base 7. An inner wall of the outer cylinder 2 is fixedly connected to a disc 30. A generator main body 28 is fixedly installed at the upper end of the disc 30. An output shaft end of the generator main body 28 is fixedly connected to a turntable 1. A lower end of the turntable 1 is rotatably connected to the upper end of the outer cylinder 2. A third rotating ring 13 is slidably sleeved on a middle part of an outer wall of the outer cylinder 2. A limiting mechanism and an elastic mechanism are respectively arranged between the third rotating ring 13 and the outer cylinder 2. A first rotating ring 9 is rotatably sleeved on the outer wall of the outer cylinder 2 near a lower edge. Three blades 3 are arranged outside the outer cylinder 2. A telescopic mechanism is arranged between the third rotating ring 13 and the first rotating ring 9 and each blade 3. A braking mechanism is arranged inside the outer cylinder 2. A connecting mechanism is arranged between the third rotating ring 13 and the turntable 1.

[0020] The limiting mechanism includes a groove 26 and two annular grooves 23. The groove 26 is opened on an inner ring surface of the third rotating ring 13. A triangular block 24 is slidably inserted into the groove 26. One end of the triangular block 24 far from the outer cylinder 2 is fixedly connected to a pull rod 27. The pull rod 27 movably penetrates through an outer ring surface of the third rotating ring 13. A third spring 25 is slidably sleeved on an outer wall of the pull rod 27. The third spring 25 is fixedly connected between the triangular block 24 and the groove 26. The two annular grooves 23 are symmetrically opened on the outer wall of the outer cylinder 2 from top to bottom. A tip of the triangular block 24 is inside a lower annular groove 23. A lower end of the triangular block 24 is in contact with a bottom of the lower annular groove 23.

[0021] The elastic mechanism includes a second rotating ring 11. The second rotating ring 11 is rotatably sleeved on an upper edge of the outer wall of the outer cylinder 2. A lower end of the second rotating ring 11 is fixedly connected to a first spring 12. A lower end of the first spring 12 is fixedly connected to an upper end of the third rotating ring 13. The first spring 12 is slidably sleeved on the outer wall of the outer cylinder 2.

[0022] The telescopic mechanism includes a connecting rod 5, a connecting frame 6 and two support plates 4. The two support plates 4 are symmetrically and fixedly sleeved on an outer wall of the blade 3 from top to bottom. One ends of the connecting rod 5 and the connecting frame 6 are respectively rotatably connected to outer ring surfaces of the third rotating ring 13 and the first rotating ring 9. The connecting rod 5 is inside the connecting frame 6. A middle part of the connecting rod 5 and a middle part of the connecting frame 6 are rotatably connected to each other. The other end of the connecting rod 5 is rotatably connected to the lower support plate 4. The other end of the connecting frame 6 is rotatably connected to a sliding plate 18. The sliding plate 18 is slidably sleeved on outer walls of two connecting columns 17. The two connecting columns 17 are fixedly connected between the two support plates 4.

[0023] The braking mechanism includes two splicing columns 31. The two splicing columns 31 are symmetrically and slidably inserted into the inner wall at the edge of the disc 30. The upper ends of the two splicing columns 31 are fixedly connected together with a rubber ring 29. The upper end surface of the rubber ring 29 is close to the lower end surface of the turntable 1. The lower ends of the two splicing columns 31 both movably penetrate through the lower end of the outer cylinder 2, and the lower ends of the two splicing columns 31 are fixedly connected together with a splicing ring 10. A sleeve ring 8 is fixedly connected to the lower end of the splicing ring 10. Both the sleeve ring 8 and the splicing ring 10 are slidably sleeved on the outer wall of the column base 7. A locking mechanism is provided between the sleeve ring 8 and the column base 7.

[0024] The braking mechanism further includes two connecting rings 33. The two connecting rings 33 are respectively fixedly sleeved on the outer walls of the two splicing columns 31. The lower ends of the two connecting rings 33 are both in contact with the inner bottom end of the outer cylinder 2. A fourth spring 32 is fixedly connected between the upper end of each of the two connecting rings 33 and the disc 30. The two fourth springs 32 are respectively slidably sleeved on the outer walls of the two splicing columns 31.

[0025] The locking mechanism includes an L-shaped plate 21. The L-shaped plate 21 is fixedly connected to the outer wall of the column base 7. The horizontal wall of the L-shaped plate 21 is in contact with the lower end of the sleeve ring 8. A bolt 22 is slidably inserted through the vertical wall of the L-shaped plate 21. The bolt 22 movably penetrates through the sleeve ring 8, and one end of the bolt 22 is slidably inserted into the inner wall of the column base 7. A fixing ring 19 is fixedly sleeved on the outer wall of the bolt 22. One end of the fixing ring 19 is in contact with the outer ring surface of the sleeve ring 8, and a second spring 20 is fixedly connected between the other end of the fixing ring 19 and the vertical wall of the L-shaped plate 21. The second spring 20 is slidably sleeved on the outer wall of the bolt 22.

[0026] The connecting mechanism includes three fixing blocks 16. The three fixing blocks 16 are evenly distributed and fixedly connected to the outer wall of the turntable 1. The lower ends of the three fixing blocks 16 are all fixedly connected with guide posts 15. Slide blocks 14 are slidably sleeved on the outer walls of the three guide posts 15. One ends of the three slide blocks 14 are all fixedly connected to the outer ring surface of the third rotating ring 13.

[0027] Working principle: When using this device in the wild, first place the column base 7 stably on the ground. In the case of wind, it can drive the three blades 3 to rotate. Each blade 3 can drive the third rotating ring 13 and the first rotating ring 9 to rotate outside the outer cylinder 2 through the two connected support plates 4, two connecting columns 17, a slide plate 18, a connecting rod 5, and a connecting frame 6. The third rotating ring 13 will drive the three slide blocks 14 to rotate, and the third rotating ring 13 will also drive the second rotating ring 11 and the first spring 12 to rotate outside the outer cylinder 2 together. Each slide block 14 will drive its corresponding guide post 15 and fixing block 16 to rotate together. The three fixing blocks 16 can drive the turntable 1 to rotate on the upper end of the outer cylinder 2. The turntable 1 will also drive the output shaft of the generator main body 28 to rotate, so as to generate electricity (this method of generating electricity is a well-known prior art and will not be elaborated).

[0028] When a malfunction occurs in this device, if the three blades 3 are still rotating continuously or at a high speed, hold the column base 7 at this time and pull out the pin 22 outward. The pin 22 will drive the fixed ring 19 to squeeze the second spring 20, and the pin 22 will slide outward within the L-shaped plate 21 and the collar 8 until the end of the pin 22 leaves the column base 7. At this time, because the two fourth springs 32 were originally in a stretched state, under the action of the two fourth springs 32, the two connecting rings 33 will automatically move upward, drive the two splicing columns 31 to slide upward within the outer cylinder 2 and the disc 30, drive the splicing ring 10 and the collar 8 to slide upward outside the column base 7, and the two splicing columns 31 will also drive the rubber ring 29 to move upward until it is in close contact with the lower end of the turntable 1. At this time, under the action of friction, the rotation of the turntable 1 will be greatly hindered, and thus the rotation of the turntable 1 will slowly stop. Then, the three blades 3 will also slowly stop rotating in the presence of wind. At this time, the corresponding personnel can perform maintenance operations without obstruction, providing convenience for the maintenance operations.

[0029] When the device cannot be thoroughly repaired on-site and needs to be sent to a dedicated maintenance station for repair, the corresponding personnel step on the bottom of the column base 7 with both feet at this time. Then, place both hands on the lower support plates 4 outside the two blades 3 respectively and press these two support plates 4 forcefully towards the outer cylinder 2 at the same time, which will drive the two blades 3 to move towards the outer cylinder 2 at the same time. During the process, the two support plates 4 outside each blade 3 will move together and drive the connecting rod 5 and the connecting frame 6 that are rotatably connected to each other to rotate. The end of the connecting rod 5 far from the blade 3 will push the third rotating ring 13 to move upward, and the end of the connecting frame 6 far from the blade 3 will push the sliding plate 18 to slide upward on the two connecting columns 17. During the upward movement of the third rotating ring 13, it will squeeze the first spring 12 connected to the second rotating ring 11, and will also drive the groove 26, the triangular block 24, the pull rod 27 and the third spring 25 to move upward together. The inclined surface of the triangular block 24 will squeeze the lower annular groove 23. Under the action of the squeezing force, the triangular block 24 will slide into the groove 26 and squeeze the third spring 25, and drive the pull rod 27 to slide outward within the third rotating ring 13 until the triangular block 24 moves upward to correspond to the upper annular groove 23. At this time, under the action of the third spring 25, the triangular block 24 will automatically insert into this annular groove 23, and the bottom plane of the triangular block 24 will fit with this annular groove 23, so that the triangular block 24 will not move downward due to the action of the first spring 12, thereby keeping the height of the third rotating ring 13 fixed. And at this time, the two blades 3 are also very close to the outer cylinder 2, and the other blade 3 is also close to the outer cylinder 2 in the same way as above, so as to quickly and simply store this device, reduce the occupied space, and thus facilitate transportation or carrying to the maintenance station, indirectly improving the maintenance operation efficiency of this device, and further providing convenience for the maintenance operations.

[0030] It should be noted that when the pull rod 27 is pulled outwards to drive the triangular block 24 away from the upper annular groove 23, the swivel ring three 13 will quickly move downwards under the action of the first spring 12. Then, according to the opposite principle, the three blades 3 will quickly move away from the outer cylinder 2 and unfold, and the connecting components between the three blades 3 and the outer cylinder 2 will not affect the rotation of the three blades 3.

[0031] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind turbine structure facilitating maintenance, comprising a column base (7), characterized in that: The upper end of the column base (7) is fixedly installed with an outer cylinder (2). The inner wall of the outer cylinder (2) is fixedly connected with a disc (30). The upper end of the disc (30) is fixedly installed with a generator main body (28). The output shaft end of the generator main body (28) is fixedly connected with a turntable (1). The lower end of the turntable (1) is rotationally connected with the upper end of the outer cylinder (2). The middle part of the outer wall of the outer cylinder (2) is slidably sleeved with a third rotating ring (13). A limiting mechanism and an elastic mechanism are respectively arranged between the third rotating ring (13) and the outer cylinder (2). The outer wall of the outer cylinder (2) near the lower edge is rotationally sleeved with a first rotating ring (9). Three blades (3) are arranged on the outside of the outer cylinder (2). A telescopic mechanism is arranged between the third rotating ring (13), the first rotating ring (9) and each blade (3). A braking mechanism is arranged inside the outer cylinder (2). A connecting mechanism is arranged between the third rotating ring (13) and the turntable (1).

2. The structure of a wind turbine facilitating maintenance according to claim 1, wherein: The limiting mechanism includes a groove (26) and two annular grooves (23). The groove (26) is opened on the inner ring surface of the third rotating ring (13), and a triangular block (24) is slidably inserted into the groove (26). One end of the triangular block (24) far from the outer cylinder (2) is fixedly connected with a pull rod (27). The pull rod (27) movably penetrates through the outer ring surface of the third rotating ring (13), and a third spring (25) is slidably sleeved on the outer wall of the pull rod (27). The third spring (25) is fixedly connected between the triangular block (24) and the groove (26). The two annular grooves (23) are symmetrically opened on the outer wall of the outer cylinder (2) up and down. The tip of the triangular block (24) is inside the lower annular groove (23), and the lower end of the triangular block (24) is in contact with the bottom of the lower annular groove (23).

3. A wind turbine structure that is convenient for maintenance according to claim 1, characterized in that: The elastic mechanism includes a second rotating ring (11). The second rotating ring (11) is rotationally sleeved on the upper edge of the outer wall of the outer cylinder (2), and the lower end of the second rotating ring (11) is fixedly connected with a first spring (12). The lower end of the first spring (12) is fixedly connected with the upper end of the third rotating ring (13), and the first spring (12) is slidably sleeved on the outer wall of the outer cylinder (2).

4. The structure of a wind turbine facilitating maintenance according to claim 1, wherein: The telescopic mechanism includes a connecting rod (5), a connecting frame (6) and two support plates (4). The two support plates (4) are symmetrically and fixedly sleeved on the outer wall of the blade (3) from top to bottom. One end of the connecting rod (5) and the connecting frame (6) are respectively rotationally connected to the outer ring surfaces of the third rotating ring (13) and the first rotating ring (9). The connecting rod (5) is inside the connecting frame (6), and the middle parts of the connecting rod (5) and the connecting frame (6) are rotationally connected to each other. The other end of the connecting rod (5) is rotationally connected to the lower support plate (4). The other end of the connecting frame (6) is rotationally connected with a sliding plate (18). The sliding plate (18) is slidably sleeved on the outer walls of two connecting columns (17). The two connecting columns (17) are fixedly connected between the two support plates (4).

5. A wind turbine structure facilitating maintenance according to claim 1, wherein: The braking mechanism includes two splicing columns (31), the two splicing columns (31) are symmetrically and slidably inserted into the inner wall of the edge of the disc (30), and a rubber ring (29) is fixedly connected to the upper ends of the two splicing columns (31). The upper end surface of the rubber ring (29) is close to the lower end surface of the turntable (1). The lower ends of the two splicing columns (31) both movably penetrate through the lower end of the outer cylinder (2), and a splicing ring (10) is fixedly connected to the lower ends of the two splicing columns (31). A collar (8) is fixedly connected to the lower end of the splicing ring (10). The collar (8) and the splicing ring (10) are both slidably sleeved on the outer wall of the column base (7). A locking mechanism is provided between the collar (8) and the column base (7).

6. The structure of a wind turbine facilitating maintenance according to claim 5, wherein: The braking mechanism further includes two connecting rings (33). The two connecting rings (33) are respectively fixedly sleeved on the outer walls of the two splicing columns (31). The lower ends of the two connecting rings (33) are both in contact with the inner bottom end of the outer cylinder (2). Spring four (32) is fixedly connected between the upper ends of the two connecting rings (33) and the disc (30). The two springs four (32) are respectively slidably sleeved on the outer walls of the two splicing columns (31).

7. A wind turbine structure facilitating maintenance according to claim 5, characterized in that: The locking mechanism includes an L-shaped plate (21). The L-shaped plate (21) is fixedly connected to the outer wall of the column base (7). The horizontal wall of the L-shaped plate (21) is in contact with the lower end of the collar (8). A bolt (22) is slidably inserted through the vertical wall of the L-shaped plate (21). The bolt (22) movably penetrates through the collar (8), and one end of the bolt (22) is slidably inserted into the inner wall of the column base (7). A fixing ring (19) is fixedly sleeved on the outer wall of the bolt (22). One end of the fixing ring (19) is in contact with the outer ring surface of the collar (8), and a spring two (20) is fixedly connected between the other end of the fixing ring (19) and the vertical wall of the L-shaped plate (21). The spring two (20) is slidably sleeved on the outer wall of the bolt (22).

8. A wind turbine structure facilitating maintenance according to claim 1, characterized in that: The connecting mechanism includes three fixing blocks (16). The three fixing blocks (16) are evenly distributed and fixedly connected to the outer wall of the turntable (1). Guide columns (15) are fixedly connected to the lower ends of the three fixing blocks (16). Sliders (14) are slidably sleeved on the outer walls of the three guide columns (15). One ends of the three sliders (14) are fixedly connected to the outer ring surface of the third rotating ring (13).

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