Maintenance tower for wind driven generator

Abstract

The utility model relates to the technical field of wind power generation, in particular to a wind driven generator maintenance control tower which comprises a control tower body and a protection assembly, the control tower body is composed of a first supporting ring, a second supporting ring, a supporting column and a supporting platform, and the first supporting ring and the second supporting ring are arranged in parallel up and down. The two ends of the multiple supporting columns are connected with the first supporting ring and the second supporting ring correspondingly, the supporting platform is connected to the second supporting ring, an inlet and outlet is formed in the supporting platform and rotationally connected with a cover plate, and the protection assembly is connected to the first supporting ring. According to the utility model, the fan-shaped first protective frame and the fan-shaped second protective frame with the same structure are staggered up and down to form a protective frame with a top view angle at the center of a circle, so that when the protective frame is stored, the first protective frame and the second protective frame are changed from a staggered state to an up-down parallel state when a worker climbs up; and bending and unfolding of the protective net are reduced, and the situation that the protective effect is reduced due to damage to the protective net is prevented.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, specifically to a wind turbine maintenance tower. Background Technology

[0002] Since the wind turbine tower is about 50 meters high, in order to avoid safety issues for workers climbing inside the tower, multiple maintenance platforms are set up inside the tower. These maintenance platforms are used to place equipment or provide temporary rest for workers. There is still a certain height difference between the longitudinally adjacent maintenance platforms.

[0003] Chinese Patent No. CN222513565U discloses a wind turbine maintenance tower, relating to the field of wind power technology. Specifically, it is a wind turbine maintenance tower fixedly installed inside the wind turbine tower body, comprising a first ring frame and a second ring frame. Multiple steel bolts are installed on the outer wall of the first ring frame, which is fixedly installed to the inner wall of the wind turbine tower body via these bolts. Multiple support columns of a certain length are fixedly connected to the first ring frame, with the upper end of each support column fixedly connected to the second ring frame. Through the protective features, this wind turbine maintenance tower protects workers and prevents tools or equipment from falling. By placing a protective net above the maintenance platform, it prevents workers from falling from above and posing a life-threatening danger. It also prevents tools or equipment from falling and damaging equipment at lower levels, thus achieving the goal of ensuring worker safety and preventing equipment damage.

[0004] However, the above technical solution only aims to protect the lives of workers and prevent equipment damage by placing the protective net above the maintenance platform to prevent workers from falling from above and endangering their lives, and to prevent tools or equipment from falling and damaging equipment at lower levels. However, when using this device, the filter needs to be unfolded and retracted, which requires certain materials for the filter. In some major wind power bases, the temperature is low. In winter, unfolding and retracting the filter will cause the protective net to be damaged more quickly. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a wind turbine maintenance tower.

[0006] The technical solution of this utility model is as follows: A wind turbine maintenance tower includes a tower body, which is composed of a first support ring, a second support ring, support columns, and a support platform. The first and second support rings are arranged parallel to each other vertically. Multiple support columns are connected at both ends to the first and second support rings respectively. The support platform is connected to the second support ring and has an inlet / outlet, with a cover plate rotatably connected to the inlet / outlet. A protective assembly is connected to the first support ring and includes a first protective frame, a second protective frame, a support shaft, and a self-locking assembly. The first and second protective frames are arranged parallel to each other vertically. The first protective frame is connected to the support platform. On the first support ring, the support shaft is rotatably connected to the first protective frame, the second protective frame is connected to the support shaft, and the second protective frame is slidably connected to the first support ring. The self-locking assembly consists of a fixed part and a movable part. The symmetrically arranged fixed parts are connected to the first protective frame, and the symmetrically arranged movable parts are connected to the second protective frame. The movable parts and the fixed parts are self-locked. When the protective assembly is in use, the second protective frame rotates with the support shaft, and the second protective frame and the first protective frame change from a parallel state to an interlaced state, forming a circular protective frame from a top-down perspective. The movable parts rotate with the second protective frame and contact the fixed parts to self-lock and restrict the position of the second protective frame.

[0007] Preferably, the first protective frame and the second protective frame have the same structure. The first protective frame consists of a sector frame, a protective net and a connecting seat. The protective net is connected to the sector frame, and the connecting seat is connected to the planar section of the sector frame. The connecting seat has a through hole for connecting to the support shaft.

[0008] Preferably, the protective assembly further includes a drive device connected to a support frame, the support frame being connected to the first protective frame, the output end of the drive device being connected to an output shaft; a drive gear connected to the output shaft; and a driven gear connected to the support shaft, the driven gear meshing with the drive gear for transmission.

[0009] Preferably, an annular plate is connected to the first support ring, and a sliding groove is formed on the annular plate.

[0010] Preferably, each sliding groove is connected to a roller, and the roller is in rolling connection with the second protective frame.

[0011] Preferably, the fixing element is a fixing block, and the fixing block has a receiving groove.

[0012] Preferably, the movable component consists of an elastic element, a locking block, a multi-stage telescopic rod, and a magnetic element. The two ends of the multi-stage telescopic rod are connected to the first protective frame and the locking block, respectively. The elastic element is sleeved on the outside of the multi-stage telescopic rod, the magnetic element is sleeved on the outside of the elastic element, and the magnetic element is magnetically connected to the locking block.

[0013] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0014] In this utility model, a protective frame with the center of a circle at a top view is formed by the staggered vertical arrangement of the first and second protective frames with the same fan shape. When it is stored to facilitate the climbing of workers, the first and second protective frames change from an staggered state to a parallel state. During protection, the second protective frame rotates at a certain angle and self-locks with the first protective frame, reducing the bending and unfolding of the protective net and preventing damage to the protective net itself, which would reduce its protective effect. Attached Figure Description

[0015] Figure 1 A schematic diagram of the unfolded structure of the protective components;

[0016] Figure 2 This is a diagram illustrating the storage status of the protective components.

[0017] Figure 3 for Figure 1 A cross-sectional view;

[0018] Figure 4 for Figure 3 Enlarged view of the structure at point A;

[0019] Figure 5 This is a cross-sectional view of the self-locking component.

[0020] Reference numerals in the attached drawings: 1. Tower body; 2. First support ring; 3. Second support ring; 4. Support column; 5. Support platform; 6. Cover plate; 7. First protective frame; 8. Second protective frame; 9. Support shaft; 10. Fixing component; 11. Moving component; 12. Sector frame; 13. Protective net; 14. Connecting seat; 15. Drive device; 16. Output shaft; 17. Driving gear; 18. Driven gear; 19. Annular plate; 20. Sliding groove; 22. Roller; 23. Fixing block; 24. Receiving groove; 25. Elastic component; 26. Locking block; 27. Multi-stage telescopic rod; 28. Magnetic suction component. Detailed Implementation

[0021] Example 1

[0022] like Figures 1-5As shown, this utility model proposes a wind turbine maintenance tower, including a tower body 1 and a protective assembly. The tower body 1 consists of a first support ring 2, a second support ring 3, support columns 4, and a support platform 5. The first support ring 2 and the second support ring 3 are arranged parallel to each other vertically. Multiple support columns 4 are connected at both ends to the first support ring 2 and the second support ring 3, respectively. The support platform 5 is connected to the second support ring 3 and has an inlet / outlet. An infrared detection device is installed on the support platform 5 to monitor whether there are personnel on the platform. A cover plate 6 is rotatably connected to the inlet / outlet. The protective assembly is connected to the first support ring 2 and includes a first protective frame 7, a second protective frame 8, a support shaft 9, and a self-locking assembly. The first protective frame 7 and the second protective frame 8 are arranged vertically. The first protective frame 7 is connected to the first support ring 2 in parallel configuration. The support shaft 9 is rotatably connected to the first protective frame 7. The second protective frame 8 is connected to the support shaft 9 and slidably connected to the first support ring 2. The self-locking assembly consists of a fixed part 10 and a movable part 11. The fixed part 10 is symmetrically connected to the first protective frame 7, and the movable part 11 is symmetrically connected to the second protective frame 8. The movable part 11 is self-locked with the fixed part 10. When the protective assembly is in use, the second protective frame 8 rotates with the support shaft 9. The second protective frame 8 and the first protective frame 7 change from a parallel state to an interlaced state, forming a circular protective frame from a top-down perspective. The movable part 11 rotates with the second protective frame 8 and contacts the fixed part 10 to self-lock and restrict the position of the second protective frame 8.

[0023] In an optional embodiment, the first protective frame 7 and the second protective frame 8 have the same structure. The first protective frame 7 consists of a sector frame 12, a protective net 13 and a connecting seat 14. The protective net 13 is connected to the sector frame 12, and the connecting seat 14 is connected to the planar section of the sector frame 12. The connecting seat 14 has a through hole for connecting to the support shaft 9.

[0024] Example 2

[0025] like Figures 3-5 As shown, the wind turbine maintenance tower proposed in this utility model, compared with Embodiment 1, describes the detailed structure of the protective components. The protective components also include a drive device 15, an output shaft 16, a drive gear 17, and a driven gear 18. The drive device 15 is connected to a support frame, which is connected to the first protective frame 7. The output end of the drive device 15 is connected to the output shaft 16. The drive device 15 is a geared motor, which can provide a large torque to drive the output shaft 16 to rotate. The drive gear 17 is connected to the output shaft 16, and the driven gear 18 is connected to the support shaft 9. The driven gear 18 and the drive gear 17 are meshed and connected. Protective covers are fitted on the outer sides of the driven gear 18 and the drive gear 17.

[0026] In an optional embodiment, an annular plate 19 is connected to the first support ring 2, and a sliding groove 20 is provided on the annular plate 19.

[0027] In an optional embodiment, each of the sliding grooves 20 is connected to a roller 22, which is in rolling connection with the sliding plate 21; the roller 22 reduces friction and facilitates the movement of the second protective frame 8.

[0028] In an optional embodiment, the fixing member 10 is a fixing block 23, and the fixing block 23 has a receiving groove 24.

[0029] In an optional embodiment, the movable component 11 consists of an elastic element 25, a locking block 26, a multi-stage telescopic rod 27, and a magnetic attractor 28. The two ends of the multi-stage telescopic rod 27 are respectively connected to the first protective frame 7 and the locking block 26. The elastic element 25 is sleeved on the outside of the multi-stage telescopic rod 27. The elastic element 25 is selected from, but is not limited to, a spring. The magnetic attractor 28 is sleeved on the outside of the elastic element 25 and is magnetically connected to the locking block 26. The magnetic attractor 28 is selected from, an electromagnet.

[0030] In summary, when using this utility model, workers climb the ladder inside the wind turbine generator, enter the support platform 5 through the entrance / exit on the main tower 1, and then close the cover plate 6. At this time, the infrared detection equipment on the main tower 1 can detect the presence of personnel and control the deployment of the protective components on top, thus facilitating their continued climbing or work on the current support platform 5. The drive device 15 drives the output shaft 16 and the drive gear 17 to rotate. The drive gear 17 meshes with the driven gear 18, driving the support shaft 9 to rotate and moving the second protective frame 8 along... The first protective frame 7 and the second protective frame 8 slide along the sliding groove 20, changing from an alternating vertical state to a parallel vertical state. At the same time, the magnetic suction component 28 will simultaneously activate the adsorption block 26 to compress the elastic component 25 and the multi-stage telescopic rod 27. The block 26 moves away from the receiving groove 24, and the self-locking component unlocks. After the staff climbs up, the infrared detection equipment drive device 15 and the magnetic suction component 28 are activated, changing the first protective frame 7 and the second protective frame 8 from a parallel vertical state to an alternating vertical state. After the magnetic suction component 28 is de-energized, the elastic component 25 rebounds and pushes the block 26 into the receiving groove 24 for self-locking.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A wind turbine maintenance tower, characterized in that, include The main body of the tower (1) is composed of a first support ring (2), a second support ring (3), a support column (4) and a support platform (5). The first support ring (2) and the second support ring (3) are arranged parallel to each other. The two ends of the multiple support columns (4) are respectively connected to the first support ring (2) and the second support ring (3). The support platform (5) is connected to the second support ring (3). The support platform (5) is provided with an inlet and outlet, and the inlet and outlet are rotatably connected to a cover plate (6). The protective assembly is connected to the first support ring (2). The protective assembly includes a first protective frame (7), a second protective frame (8), a support shaft (9), and a self-locking component. The first protective frame (7) and the second protective frame (8) are arranged parallel to each other vertically. The first protective frame (7) is connected to the first support ring (2). The support shaft (9) is rotatably connected to the first protective frame (7). The second protective frame (8) is connected to the support shaft (9) and is slidably connected to the first support ring (2). The self-locking component consists of a fixed part (10) and a movable part (11), which are symmetrical. The fixed part (10) is connected to the first protective frame (7), and the symmetrically arranged movable part (11) is connected to the second protective frame (8). The movable part (11) and the fixed part (10) are self-locked. When the protective component is in use, the second protective frame (8) rotates with the support shaft (9). The second protective frame (8) and the first protective frame (7) change from a parallel state to an interlaced state, forming a circular protective frame from a top view. The movable part (11) rotates with the second protective frame (8) and contacts the fixed part (10) to self-lock and restrict the position of the second protective frame (8).

2. A wind turbine maintenance tower according to claim 1, characterized in that, The first protective frame (7) has the same structure as the second protective frame (8). The first protective frame (7) consists of a fan-shaped frame (12), a protective net (13) and a connecting seat (14). The protective net (13) is connected to the fan-shaped frame (12), and the connecting seat (14) is connected to the planar section of the fan-shaped frame (12). The connecting seat (14) has a through hole for connecting to the support shaft (9).

3. A wind turbine maintenance tower according to claim 1, characterized in that, The protective components also include The drive unit (15) is connected to a support frame, which is connected to the first protective frame (7). The output end of the drive unit (15) is connected to an output shaft (16). The drive gear (17) is connected to the output shaft (16); Driven gear (18) is connected to support shaft (9) and meshes with driving gear (17) for transmission.

4. A wind turbine maintenance tower according to claim 1, characterized in that, The first support ring (2) is connected to an annular plate (19), and a sliding groove (20) is provided on the annular plate (19).

5. A wind turbine maintenance tower according to claim 4, characterized in that, Rollers (22) are connected to each sliding groove (20), and the rollers (22) are in rolling connection with the second protective frame (8).

6. A wind turbine maintenance tower according to claim 1, characterized in that, The fastener (10) is a fixing block (23), and the fixing block (23) has a receiving groove (24).

7. A wind turbine maintenance tower according to claim 1, characterized in that, The movable part (11) is composed of an elastic element (25), a locking block (26), a multi-stage telescopic rod (27) and a magnetic element (28). The two ends of the multi-stage telescopic rod (27) are connected to the first protective frame (7) and the locking block (26) respectively. The elastic element (25) is sleeved on the outside of the multi-stage telescopic rod (27), the magnetic element is sleeved on the outside of the elastic element (25), and the magnetic element (28) is magnetically connected to the locking block (26).

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