Tower drum of wind generating set

Abstract

The utility model relates to the technical field of wind power generation, in particular to a tower drum of a wind generating set, which comprises a tower drum, a base, an access door, an impeller and a balance component, the bottom of the tower drum is used for being connected with the base, and the impeller is connected to the top of the tower drum; the top of the impeller is connected with a wind speed and direction sensor; a notch is formed in the side wall of the sleeve and connected with an access door through a hinge. The balance assembly is connected to the outer side wall of the sleeve and comprises a steering assembly and a stretching assembly, the steering assembly is connected to the outer side wall of the tower barrel, and the stretching assembly is connected to the steering assembly. According to the utility model, the steering assembly rotates by taking the central axis of the tower drum as the circle center in the use state, the steering assembly and the impeller can be controlled to steer so as to achieve a better use effect, and the extension assembly can drive the balancing weight to move along the horizontal direction in the use state; and the distance between the balancing weight and the tower drum is increased to obtain larger torque, so that the stability of the tower drum is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a tower of a wind power generator set. Background Art

[0002] A wind turbine is a device that converts wind energy into electrical energy. Wind energy is the most technologically mature and largest-scale new renewable energy in the current clean energy field. A wind turbine is mainly composed of three parts: an impeller, a tower and a base. The remaining accessories for power generation are installed inside the impeller, tower and base.

[0003] After searching, Chinese patent announcement No. CN219911032U discloses a wind power tower with good stability, including a base, a tower assembly is movably arranged on the upper end of the base, a driving mechanism is arranged inside the base, and a counterweight mechanism is arranged on the upper end of the tower assembly; the utility model has a simple structure and a reasonable design. Through the counterweight mechanism, the center of gravity of the entire tower is adjusted at different wind speeds, avoiding the situation that the overall center of gravity of the entire device is biased toward the impeller when the wind speed is too low, and the overall center of gravity of the device is biased away from the impeller under the action of the impeller wind resistance when the wind speed is too high, thereby increasing the overall stability of the tower and improving the service life of the tower. At the same time, through the tower assembly, the connection points between the tower body and the bottom mounting platform are increased, and the stabilizing bar is obliquely connected between the inner side wall of the tower body and the bottom mounting platform, which can further balance the center of gravity of the tower and increase the stability of the tower.

[0004] However, in the above technical solution, the stability of the tower is increased only by rotating the counterweight around the tower. However, the counterweight has a certain area. When the counterweight faces the wind at the top of the tower, the wind resistance of the tower is further increased and the load of the tower is increased. Utility Model Content

[0005] The utility model aims to provide a wind turbine generator tower in view of the problems existing in the background technology.

[0006] The technical solution of the utility model is as follows: a tower of a wind turbine generator set comprises a tower, one end of which is connected to a base, and an inlet and outlet door is provided on the tower; an impeller, which is connected to an end of the tower away from the base; a balancing assembly, which is connected to the tower, and the balancing assembly comprises a steering assembly and an extension assembly, the steering assembly is connected to the outside of the tower, when the steering assembly is in use, the steering assembly rotates with the tower as the center to cope with different wind directions, and the extension assembly is connected to the steering assembly, when the extension assembly is in use, the extension assembly drives the counterweight to move in the horizontal direction;

[0007] The steering assembly includes a support plate, which is rotatably connected to the tower; a gear ring, which has the same center as the support plate and is connected to the support plate; a first drive device, whose output end is connected to an output shaft, the first drive device is connected to a mounting plate, and the support plate is connected to the tower; a gear, which is connected to the output shaft, and the gear is meshed and connected to the gear ring;

[0008] The extension assembly includes two support plates, which are symmetrically arranged and connected to the support disk; a fixed seat, which is connected to both ends of the support plate; a threaded rod, whose number corresponds to the support plate, and both ends of the threaded rod are rotatably connected to the fixed seat; a second drive device, whose number corresponds to the threaded rod, the second drive device is connected to the fixed seat in any direction, and the output end of the second drive device is connected to one end of the threaded rod; a sliding seat, which is threadedly connected to the reciprocating threaded rod, a connecting plate is connected between the sliding seats, and a counterweight block is connected to the connecting plate.

[0009] Preferably, a protective cover is sleeved on the outer side of the second driving device, and the protective cover is connected to the fixing seat.

[0010] Preferably, a plurality of evenly distributed ventilation holes are provided on the tower, and a sealing frame is connected to the ventilation holes.

[0011] Preferably, sound-absorbing cotton is connected to both side walls of the sealing frame.

[0012] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0013] In the utility model, the steering assembly rotates with the central axis of the tower as the center when in use, and both the steering assembly and the impeller can be controlled to steer to achieve a better use effect. The extension assembly can drive the counterweight to move in the horizontal direction when in use, increase the distance between the counterweight and the tower to obtain a larger torque and thus enhance its stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 for Figure 1 A cross-sectional schematic diagram of

[0016] Figure 3 for Figure 2 A-shaped structure enlarged diagram;

[0017] Figure 4 for Figure 2 A magnified view of the structure at B;

[0018] Figure 5 A schematic cross-sectional view of the gear ring.

[0019] Figure numerals: 1. tower; 2. base; 3. access door; 4. impeller; 5. support plate; 6. gear ring; 7. first drive device; 8. output shaft; 9. mounting plate; 10. gear; 11. support plate; 12. fixed seat; 13. threaded rod; 14. second drive device; 15. sliding seat; 16. connecting plate; 17. protective cover; 18. ventilation hole; 19. sealing frame; 20. sound-absorbing cotton. DETAILED DESCRIPTION

[0020] Embodiment 1

[0021] like Figure 1-Figure 5 As shown, the utility model proposes a wind turbine tower, including a tower 1, a base 2, an access door 3, an impeller 4 and a balancing assembly, the bottom of the tower 1 is used to connect with the base 2, and the impeller 4 is connected to the top of the tower 1; the top of the impeller 4 is connected to a wind speed and direction sensor; a notch is provided on the side wall of the sleeve 1, and the access door 3 is connected to the notch through a hinge; the balancing assembly is connected to the outer wall of the sleeve 1, and the balancing assembly includes a steering assembly and an extension assembly, and the steering assembly is connected to the outer wall of the tower 1; the steering assembly rotates with the central axis of the tower 1 as the center of the circle when in use, and the steering assembly and the impeller 4 can be controlled to turn to achieve a better use effect; the extension assembly is connected to the steering assembly, and the extension assembly can drive the counterweight to move in the horizontal direction when in use, increase the distance between the counterweight and the tower 1 to obtain a larger torque and thus enhance its stability.

[0022] In an optional embodiment, a plurality of evenly distributed ventilation holes 18 are provided on the tower 1 , and a sealing frame 19 is connected to the ventilation holes 18 ; the ventilation holes 18 can reduce the wind resistance on the surface of the tower 1 and enhance the stability.

[0023] In an optional embodiment, sound-absorbing cotton 20 is connected to both side walls of the sealing frame 19 ; the sound-absorbing cotton 20 absorbs noise when wind blows through the ventilation holes 18 and generates noise.

[0024] Embodiment 2

[0025] like Figure 2 , Figure 3 , Figure 5As shown, a wind turbine tower proposed by the utility model, compared with the first embodiment, the detailed structure of the steering assembly is recorded in this embodiment, the steering assembly includes a support plate 5, a ring gear 6, a first drive device 7, an output shaft 8, a mounting plate 9, a gear 10 and a support plate 11, the support plate 5 is rotatably connected to the outer wall of the tower 1 through a bearing, the upper end surface of the support plate 5 is used to connect the extension assembly, the lower end surface of the support plate 5 is used to connect the ring gear 6, the mounting plate 9 is connected to the outer wall of the tower 1, and the first drive device 7 is connected to the mounting plate 9; the first drive device 7 is an electric motor; the output end of the first drive device 7 is connected to the output shaft 8, the output shaft 8 is used to connect the gear 10, and the gear 10 is meshed and driven with the ring gear 6.

[0026] Embodiment 3

[0027] like Figure 5 As shown, a wind turbine tower proposed by the utility model, compared with the second embodiment, the detailed structure of the extension component is recorded in this embodiment, the extension component includes a support plate 11, a fixed seat 12, a threaded rod 13, a second drive device 14, a sliding seat 15 and a connecting plate 16, two symmetrically arranged support plates 11 are connected to the upper end surface of the support disk 5, both ends of the support plate 11 are connected to the fixed seat 12, both ends of the threaded rod 13 are rotatably connected to the fixed seat 12 through bearings, and two second drive devices 14 are connected to any one of the fixed seats 12; the second drive device 14 is selected from but not limited to a servo motor; the second drive device 14 is connected to one end of the threaded rod 13; two sliding seats 15 are threadedly connected to the threaded rod 13, and the connecting plate 16 is connected to the upper end surface of the sliding seat 15; the connecting plate 16 is provided with a groove for accommodating a counterweight.

[0028] In an optional embodiment, a protective cover 17 is provided on the outer side of the second driving device 14, and the protective cover 17 is connected to the fixing base 12; the protective cover 17 prevents rainwater and debris from contacting the second driving device 14 and affecting its heat dissipation capacity.

[0029] In summary, when the utility model is used, wind speed and direction sensors for detecting direction and wind speed are installed on the impeller 4, and both can send detected signals to the control device. When the wind force is strong, the first drive device 7 and the second drive device 14 are controlled by the control device to operate. After the first drive device 7 is started, its output shaft 8 drives the gear 10 to rotate, and the gear 10 engages with the ring gear 6 to drive the support plate 5 to rotate, so that the counterweight block and the impeller 4 are in the same direction. At the same time, the output ends of the two second drive devices 14 drive the two threaded rods 13 to rotate, and the sliding seat 15 on the threaded rod 13 moves linearly along the central axis of the threaded rod 13, and the connecting plate 16 and the counterweight block between the sliding seats 15 move away from the tower 1, so that the center of gravity of the tower 1 remains balanced and its stability is enhanced. At the same time, the wind resistance can be further reduced through the ventilation holes 18 opened on the sleeve 1.

[0030] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A wind turbine tower (1), characterized in that: include A tower (1) has one end connected to a base (2), and an entrance door (3) is provided on the tower (1); An impeller (4) connected to an end of the tower (1) away from the base (2); A balancing assembly is connected to the tower (1), the balancing assembly comprising a steering assembly and an extension assembly, the steering assembly is connected to the outside of the tower (1), when the steering assembly is in use, the steering assembly rotates with the tower (1) as the center to cope with different wind directions, and the extension assembly is connected to the steering assembly, when the extension assembly is in use, the extension assembly drives the counterweight to move in a horizontal direction; Steering components include A support plate (5) rotatably connected to the tower (1); A gear ring (6) having the same center as the support plate (5), and the gear ring (6) is connected to the support plate (5); A first drive device (7), the output end of which is connected to an output shaft (8), the first drive device (7) is connected to a mounting plate (9), and a support plate (11) is connected to the tower (1); A gear (10) is connected to the output shaft (8), and the gear (10) is meshed and transmission-connected with the ring gear (6); Extension kit includes Two support plates (11) are symmetrically arranged, and the support plates (11) are connected to the support plate (5); A fixing seat (12) connected to both ends of the supporting plate (11); The number of threaded rods (13) corresponds to the number of support plates (11), and both ends of the threaded rods (13) are rotatably connected to the fixing seat (12); The second driving devices (14) have a number corresponding to the number of the threaded rods (13), the second driving devices (14) are connected to the fixing seat (12) in any direction, and the output end of the second driving device (14) is connected to one end of the threaded rod (13); The sliding seat (15) is threadedly connected to the reciprocating threaded rod (13), a connecting plate (16) is connected between the sliding seats (15), and a counterweight block is connected to the connecting plate (16).

2. A wind turbine generator tower (1) according to claim 1, characterized in that: A protective cover (17) is sleeved on the outer side of the second driving device (14), and the protective cover (17) is connected to the fixing seat (12).

3. A wind turbine generator tower (1) according to claim 1, characterized in that: A plurality of evenly distributed ventilation holes (18) are provided on the tower (1), and a sealing frame (19) is connected inside the ventilation holes (18).

4. A wind turbine generator tower (1) according to claim 3, characterized in that: Both side walls of the sealing frame (19) are connected with sound-absorbing cotton (20).

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