Flow guide structure of wind turbine generator gearbox radiator

Abstract

The utility model discloses a flow guide structure of a wind turbine generator gearbox radiator. The flow guide structure comprises a gearbox radiator and a toothed plate. Flow guide plates are arranged on the surface of the gear box radiator at equal intervals, rotating rods are arranged at the two ends of each group of flow guide plates respectively, one group of rotating rods extend into the gear box radiator, and the other group of rotating rods penetrate through the gear box radiator and then are provided with gears A; the angle of the guide plate can be conveniently adjusted through the driving mechanism, different working conditions and environment conditions have different heat dissipation requirements, the angle of the guide plate can be adjusted according to actual requirements, air can flow through the radiator more effectively, and the heat dissipation efficiency is improved; the positioning mechanism pushes an arc-shaped positioning block to be meshed with a gear B through an air cylinder, so that the angle of the flow guide plate can be reliably fixed, and the angle change of the flow guide plate due to vibration and the like in the equipment operation process is prevented; and movement of the toothed plate is limited through the limiting plate, and the stable meshing relation between the toothed plate and the gear A is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine gearbox radiators, specifically a flow guiding structure for a wind turbine gearbox radiator. Background Technology

[0002] Wind turbines are devices that convert wind energy into electrical energy. The power transmission during wind power generation is inseparable from gearboxes. When the gearbox is working, the meshing and wear between the gears will generate a lot of heat, which needs to be cooled in time. Moreover, after the gearbox has been running for a period of time, the oil quality gradually deteriorates, which seriously affects the lubrication effect of the gearbox and further increases the operating temperature, creating a vicious cycle.

[0003] In existing technologies, the guide plate angles of wind turbine gearbox radiators are usually fixed and not adjustable, or the adjustment methods are complex and inflexible. On the one hand, the guide plate angles are mostly fixed, making it difficult to make adaptive adjustments according to the complex and ever-changing operating conditions and environmental conditions of wind turbines. On the other hand, even if there are some structures with adjustable guide plates, their fixing methods are also flawed. They rely solely on simple mechanical connections or friction to fix the guide plate angle. When the equipment vibrates during operation, the guide plate is prone to angle shift, resulting in unstable heat dissipation and failing to ensure that the gearbox can dissipate heat stably and efficiently under various operating conditions.

[0004] In view of this, we have introduced a flow guiding structure for a wind turbine gearbox radiator. Utility Model Content

[0005] The purpose of this invention is to provide a flow guiding structure for a wind turbine gearbox radiator to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flow guiding structure for a wind turbine gearbox radiator, comprising: a gearbox radiator and a gear plate;

[0007] The surface of the gearbox radiator is provided with guide plates at equal intervals. Each set of guide plates has a rotating rod at both ends. One set of rotating rods extends into the interior of the gearbox radiator, and the other set of rotating rods passes through the gearbox radiator and is provided with gear A. The rotating rods are designed to facilitate the rotation of the guide plates so that they can be rotated to a suitable position to expose the slots for heat dissipation.

[0008] The toothed plate is slidably connected to the side of the gearbox radiator, and a slider is connected to the side of the toothed plate. The slider is slidably connected inside the gearbox radiator for limiting the position. The toothed plate meshes with gear A.

[0009] The surface of the gearbox radiator is provided with a drive mechanism. The threaded rod of the drive mechanism drives the threaded block and the gear plate to move upward, so that the gear plate drives gear A, the rotating rod and the guide plate to rotate.

[0010] Preferably, the drive mechanism includes a motor connected to the side of the gearbox radiator, the motor being bolted to the side of the gearbox radiator, a threaded block connected to the output end of the motor, a side plate connected to the top of the threaded block, and the side plate being fixedly connected to the side of the gearbox radiator. A bearing is fitted at one end of the threaded rod, the bearing being embedded inside the side plate for easy rotation. The threaded block is screwed onto the surface of the threaded rod, the internal thread inside the threaded block matching and engaging with the external thread on the surface of the threaded rod. The threaded block is connected to one side of the gear plate, and a gear B is fixedly connected to the surface of the threaded rod, with gear B being fixedly connected to the threaded rod.

[0011] Preferably, the bottom of the toothed plate is connected to a limiting plate for limiting the position, and the limiting plate and the toothed plate are fixedly connected.

[0012] Preferably, a positioning mechanism is provided on the side of the gearbox radiator. The cylinder of the positioning mechanism drives the arc-shaped positioning block to move toward the surface of gear B to fix gear B.

[0013] Preferably, the positioning mechanism includes a toothed groove connected to the surface of the arc-shaped positioning block. The toothed groove and the arc-shaped positioning block are integrally formed, and the toothed groove meshes with gear B. The arc-shaped positioning block is used to limit the excessive rotation of gear B and threaded rod. The cylinder is connected to the side of the gearbox radiator. The cylinder is bolted to the side of the gearbox radiator. The arc-shaped positioning block is connected to the output end of the cylinder.

[0014] Preferably, the top of the gearbox radiator is provided with equally spaced heat dissipation holes, which are integrally formed with the gearbox radiator. The equally spaced heat dissipation holes on the top of the gearbox radiator dissipate heat using the principle of thermal convection. Hot air will rise naturally and be discharged into the external environment through the heat dissipation holes, while cold air from the outside will be replenished from around the radiator, forming a natural air convection circulation, which carries away the heat of the gearbox radiator, reduces the temperature of the gearbox, and ensures the normal operation of the gearbox.

[0015] Preferably, a guide block A is connected to one side of the toothed plate, and a guide groove A for sliding contacting the guide block A is provided on the side of the gearbox radiator.

[0016] Preferably, the threaded block is connected to a guide block B on its side, and the gearbox radiator has a guide groove B on its side for sliding contact with the guide block B.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) The angle of the guide vane can be easily adjusted through the drive mechanism. During the operation of the wind turbine, different working conditions and environmental conditions have different requirements for heat dissipation. The angle of the guide vane can be adjusted according to actual needs so that the air can flow through the radiator more effectively and improve the heat dissipation efficiency. When the wind speed is low, the angle of the guide vane can be adjusted so that the air flows more concentratedly to the radiator and enhances the heat dissipation effect. When the wind speed is high, the angle of the guide vane can be adjusted to avoid excessive wind resistance affecting the operation of the equipment.

[0019] (2) The positioning mechanism pushes the arc-shaped positioning block with the gear B through the cylinder, which can reliably fix the angle of the guide plate and prevent the angle of the guide plate from changing due to vibration and other reasons during the operation of the equipment, thus ensuring the stability of the heat dissipation effect.

[0020] (3) The movement of the tooth plate is limited by the limiting plate, which ensures a stable meshing relationship between the tooth plate and gear A, avoids problems such as tooth dislodgement during transmission, and improves the stability of transmission. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional connection of the toothed plate, gear A, and guide plate of this utility model.

[0023] Figure 3 This is a schematic diagram of the connection between the threaded rod, gear B, and arc-shaped positioning block of this utility model.

[0024] Figure 4 This is a schematic diagram of the structure of the cylinder, arc-shaped positioning block and toothed groove of this utility model.

[0025] In the diagram: 1. Gearbox radiator; 2. Guide plate; 3. Side plate; 4. Cylinder; 5. Motor; 6. Gear plate; 7. Rotating rod; 9. Arc-shaped positioning block; 10. Gear B; 11. Threaded block; 12. Threaded rod; 13. Gear A; 14. Limiting plate; 15. Gear groove; 16. Heat dissipation hole; 17. Guide groove A; 18. Guide block A; 19. Guide groove B; 20. Guide block B. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a flow guiding structure for a wind turbine gearbox radiator, comprising: a gearbox radiator 1, wherein flow guiding plates 2 are provided at equal intervals on the surface of the gearbox radiator 1, and each set of flow guiding plates 2 is provided with a rotating rod 7 at both ends, one set of rotating rods 7 extends into the interior of the gearbox radiator 1, and another set of rotating rods 7 passes through the gearbox radiator 1 and is provided with a gear A13.

[0028] Gear plate 6, which is slidably connected to the side of gearbox radiator 1, and meshes with gear A13;

[0029] The surface of the gearbox radiator 1 is provided with a drive mechanism. The threaded rod 12 of the drive mechanism drives the threaded block 11 and the gear plate 6 to move upward, so that the gear plate 6 drives the gear A13, the rotating rod 7 and the guide plate 2 to rotate.

[0030] The drive mechanism includes a motor 5 connected to the side of the gearbox radiator 1. The motor 5 is bolted to the side of the gearbox radiator 1. A threaded block 11 is connected to the output end of the motor 5. A side plate 3 is connected to the top of the threaded block 11 and is also connected to the side of the gearbox radiator 1. The side plate 3 and the gearbox radiator 1 are fixedly connected. A bearing is fitted at one end of the threaded rod 12 and is embedded in the side plate 3 for easy rotation. The threaded block 11 is screwed onto the surface of the threaded rod 12. The internal thread of the threaded block 11 matches and engages with the external thread on the surface of the threaded rod 12. The threaded block 11 is connected to one side of the gear plate 6. A gear B10 is fixedly connected to the surface of the threaded rod 12. The gear B10 and the threaded rod 12 are fixedly connected.

[0031] The bottom of the toothed plate 6 is connected to a limiting plate 14 for limiting the position, and the limiting plate 14 and the toothed plate 6 are fixedly connected.

[0032] A positioning mechanism is provided on the side of the gearbox radiator 1. The cylinder 4 of the positioning mechanism drives the arc-shaped positioning block 9 to move toward the surface of the gear B10 to fix the gear B10.

[0033] The positioning mechanism includes a toothed groove 15 connected to the surface of the arc-shaped positioning block 9. The toothed groove 15 and the arc-shaped positioning block 9 are integrally formed and mesh with the gear B10. The arc-shaped positioning block 9 is used to limit the excessive rotation of the gear B10 and the threaded rod 12. The cylinder 4 is connected to the side of the gearbox radiator 1. The cylinder 4 is bolted to the side of the gearbox radiator 1. The arc-shaped positioning block 9 is connected to the output end of the cylinder 4.

[0034] The top of the gearbox radiator 1 is provided with equally spaced heat dissipation holes 16. The heat dissipation holes 16 and the gearbox radiator 1 are integrally formed. The equally spaced heat dissipation holes 16 on the top of the gearbox radiator 1 dissipate heat using the principle of thermal convection. Hot air will rise naturally and be discharged into the external environment through the heat dissipation holes 16, while cold air from the outside will be replenished from around the radiator, forming a natural air convection circulation, which carries away the heat of the gearbox radiator 1, reduces the temperature of the gearbox, and ensures the normal operation of the gearbox.

[0035] A guide block A18 is connected to one side of the toothed plate 6, and a guide groove A17 for sliding contacting the guide block A18 is provided on the side of the gearbox radiator 1.

[0036] The guide block A18 connected to one side of the gear plate 6 slides into the guide groove A17 opened on the side of the gearbox radiator 1, which can accurately guide the movement of the gear plate 6.

[0037] The threaded block 11 is connected to a guide block B20 on its side, and the gearbox radiator 1 is provided with a guide groove B19 for sliding the guide block B20 on its side.

[0038] The guide block B20 on the side of the threaded block 11 slides into the guide groove B19 on the side of the gearbox radiator 1, which can accurately guide the movement of the threaded block, making it move stably in a specific direction and avoiding shaking and deviation.

[0039] In this embodiment, the start-stop and operation of cylinder 4 and motor 5 can be electrically controlled using existing PLC systems (or 51 microcontrollers). This type of control is a mature technology, as seen in "Design and Implementation of Material Sorting Control System Based on PLC and HMI" by Wang Xiaoyu and Li Haoyu, which will not be elaborated here.

[0040] Specifically, when it is necessary to adjust the angle of the guide plate 2, the motor 5 connected to the side of the gearbox radiator 1 is started. The output end of the motor 5 drives the threaded block 11 to rotate. Since the threaded block 11 is screwed onto the surface of the threaded rod 12, and the side plate 3 connected to the top of the threaded block 11 is fixed to the side of the gearbox radiator 1, the rotation of the threaded block 11 is restricted. Therefore, the threaded block 11 can only move along the axial direction of the threaded rod 12. As the motor 5 continues to work, the threaded block 11 moves upward. The guide block B20 on the side of the threaded block 11 slides into the guide groove B19 on the side of the gearbox radiator 1 to limit the position of the threaded block 11.

[0041] As the threaded block 11 moves upward, it pushes the toothed plate 6 connected to it to move upward together. When the toothed plate 6 moves upward, the guide block A18 on one side of the toothed plate 6 slides into the guide groove A17 on the side of the gearbox radiator 1 to limit the movement. The toothed plate 6 and the gear A13 mesh with each other. The upward movement of the toothed plate 6 will drive the gear A13 to rotate. The gear A13 is installed on the rotating rod 7 that passes through the gearbox radiator 1, so the rotating rod 7 will rotate together with the gear A13. Since the two ends of each set of guide plates 2 are respectively connected to the rotating rod 7, the rotation of the rotating rod 7 will drive the guide plate 2 to rotate around the rotating rod 7, thereby adjusting the angle of the guide plate 2. This facilitates the heat generated during the operation of the gearbox, and the heat is discharged through the angled slot created by the rotation of the guide plate 2.

[0042] The limiting plate 14 connected to the bottom of the toothed plate 6 serves to limit the range of movement of the toothed plate 6. When the toothed plate 6 moves upward to a certain position, the limiting plate 14 will contact the toothed plate 6 to prevent the toothed plate 6 from moving upward too much, thus avoiding disengagement of the toothed plate 6 from the gear A13 or damage to other components, and ensuring the stability and reliability of the entire transmission structure.

[0043] After the guide plate 2 is adjusted to a suitable angle, its position needs to be fixed. At this time, the cylinder 4 in the positioning mechanism is activated. The output end of the cylinder 4 pushes the arc-shaped positioning block 9 towards the surface of the gear B10. The surface of the arc-shaped positioning block 9 is connected to the tooth groove 15, which meshes with the gear B10. When the arc-shaped positioning block 9 moves to a suitable position (e.g., when the teeth on the surface of the arc-shaped positioning block 9 do not mesh with the tooth groove 15), the drive motor 5 drives the gear B10 and the threaded rod 12 to rotate, so that the teeth on the surface of the arc-shaped positioning block 9 mesh with the tooth groove 15. The motor 5 is a stepper motor, which facilitates precise rotation control by the PLC without causing excessive displacement of the gear plate 6. The position can be moved within ±0.1°, while the opening and closing angle of the guide plate 2 is controlled within ±1°. The tooth groove 15 is tightly meshed with the gear B10, thereby restricting the rotation of the gear B10. Since the gear B10 is fixedly connected to the threaded rod 12, the inability of the gear B10 to rotate means that the threaded rod 12 cannot rotate, which in turn prevents the threaded block 11 and the toothed plate 6 from moving. This ultimately fixes the angle of the guide plate 2 (that is, when the limiting plate 14 at the bottom of the toothed plate 6 just contacts the surface of the gear B10, the guide plate 2 can be opened to 60°, and at this time the teeth on the surface of the gear B10 mesh with the tooth groove 15 on the surface of the arc-shaped positioning block 9, which facilitates the restriction of the gear B10), ensuring that the guide plate 2 remains stable during operation.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flow guiding structure for a wind turbine generator set gearbox radiator, characterized in that, Include: Gearbox radiator (1), the surface of the gearbox radiator (1) is equidistantly provided with guide plate (2), both ends of each set of guide plate (2) are provided with rotating rod (7), one set of rotating rod (7) extends to the inside of gearbox radiator (1), the other set of rotating rod (7) is provided with gear A (13) after penetrating gearbox radiator (1); The tooth plate (6) is slidably connected to the side edge of the gearbox radiator (1), and the tooth plate (6) is engaged with the gear A (13); The surface of the gearbox radiator (1) is provided with a driving mechanism, the threaded rod (12) of the driving mechanism drives the threaded block (11) and the tooth plate (6) to move upwards, so that the tooth plate (6) drives the gear A (13), the rotating rod (7) and the guide plate (2) to rotate.

2. The flow guide structure of a wind turbine gearbox radiator according to claim 1, wherein, The driving mechanism includes a motor (5) connected to the side edge of the gearbox radiator (1), the threaded block (11) is connected to the output end of the motor (5), the top of the threaded block (11) is connected with a side plate (3), and the side plate (3) is connected to the side edge of the gearbox radiator (1), the threaded block (11) is screwed on the surface of the threaded rod (12), the threaded block (11) is connected to one side of the tooth plate (6), and the surface of the threaded rod (12) is fixedly connected with a gear B (10).

3. The flow guide structure of a wind turbine gearbox radiator according to claim 1, wherein, The bottom of the tooth plate (6) is connected with a limiting plate (14) for limiting.

4. The flow guide structure of a wind turbine gearbox radiator according to claim 1, wherein, The side edge of the gearbox radiator (1) is provided with a positioning mechanism, the arc-shaped positioning block (9) of the positioning mechanism is driven by the cylinder (4) to move towards the surface of the gear B (10), so as to fix the gear B (10).

5. A wind turbine generator set gear box radiator flow guiding structure according to claim 4, wherein, The positioning mechanism includes a gear slot (15) connected to the surface of the arc-shaped positioning block (9), and the gear slot (15) is engaged with the gear B (10), the cylinder (4) is connected to the side edge of the gearbox radiator (1), and the arc-shaped positioning block (9) is connected to the output end of the cylinder (4).

6. The wind turbine generator set gear box radiator flow guide structure of claim 1, wherein, The top of the gearbox radiator (1) is equidistantly provided with a heat dissipation hole (16).

7. The flow guiding structure of a wind turbine gearbox radiator according to claim 1, wherein, One side of the tooth plate (6) is connected with a guide block A (18), and the side edge of the gearbox radiator (1) is provided with a guide groove A (17) for sliding the guide block A (18).

8. The wind turbine generator set gear box radiator flow guide structure according to claim 2, wherein, The side edge of the threaded block (11) is connected with a guide block B (20), and the side edge of the gearbox radiator (1) is provided with a guide groove B (19) for sliding the guide block B (20).

Images