Protective cover structure for wind generating set gear box air outlet

Abstract

The invention discloses a wind generating set gear box air outlet protective cover structure in the technical field of air outlet protection, which comprises a protective support frame and a generator fixing frame, the generator fixing frame is fixedly welded at the position of a gear box air outlet, and the protective support frame is connected with the generator fixing frame through a quick release assembly. The flow blocking assembly comprises an inner flow blocking unit and an outer flow blocking unit, the inner flow blocking unit and the outer flow blocking unit are both fixed in the protective supporting frame, and the inner flow blocking unit and the outer flow blocking unit are both provided with a closed state and an open state. The inner flow blocking unit and the outer flow blocking unit are each rotationally connected with a plurality of sets of rotating adhesion plates. The driving assembly can control opening and closing of the inner flow blocking unit and the outer flow blocking unit. According to the protective cover of the quick-release structure, foreign matter is effectively prevented from entering an air outlet, meanwhile, it is ensured that the protective cover is conveniently installed and replaced, and when the air outlet is blocked, the protective cover can be quickly replaced and cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of air outlet protection, and particularly to a wind turbine gearbox air outlet protection cover structure. Background Art

[0002] In the northern region, there are cases of catkins and bird nesting in wind turbines. The original air outlet of the gearbox of the unit was a louvered structure, which was often blocked by foreign objects such as catkins from invading the radiator fins. In addition, the louvered air outlet structure was often damaged during actual operation, and the situation of birds building nests affected the heat dissipation effect, and even led to overheating faults of the gearbox. It is necessary for the operators to clean the radiator fins every summer, and at the same time, the cleaning cannot guarantee that the catkin blockage can be effectively removed. To solve the above problems, a protective cover is often directly installed at the air outlet with screws to block the invasion of foreign objects such as catkins, but it is not convenient to clean and replace the protective cover when it is blocked.

[0003] Based on this, the present invention designs a wind turbine gearbox air outlet protection cover structure to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a wind turbine gearbox air outlet protection cover structure, which is a quick-release structure protection cover to effectively block foreign objects from entering the air outlet, and at the same time ensure the convenient installation and replacement of the protection cover, and can quickly replace and clean the protection cover when the air outlet is blocked.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A wind turbine gearbox air outlet protection cover structure, including a protection support frame and a generator fixing frame. The generator fixing frame is fixedly welded at the position of the gearbox air outlet. The protection support frame is connected to the generator fixing frame through a quick-release component. The protection support frame is provided with:

[0007] A flow-blocking component, which includes an inner flow-blocking unit and an outer flow-blocking unit. Both the inner flow-blocking unit and the outer flow-blocking unit are fixed inside the protection support frame, and both the inner flow-blocking unit and the outer flow-blocking unit have two states: closed and open.

[0008] A driving component, which can control the opening and closing of the inner flow-blocking unit and the outer flow-blocking unit, and can make the opening and closing states of the inner flow-blocking unit and the outer flow-blocking unit alternate.

[0009] Preferably, the flow-blocking component includes an embedded ring, which is fixedly installed between the protection support frames. The inner flow-blocking unit is fixedly arranged on one side of the embedded ring close to the generator fixing frame, and the outer flow-blocking unit is fixedly arranged on the side of the embedded ring far from the generator fixing frame.

[0010] Preferably, the inner baffle unit and the outer baffle unit both include side extension plates and rotating adhesion plates, and the inner baffle unit and the outer baffle unit are both provided with two groups of side extension plates, and the side extension plates are symmetrically distributed on both sides of the embedded ring, and multiple groups of rotating adhesion plates are rotatably connected between the side extension plates, and when the rotating adhesion plates rotate vertically, adjacent rotating adhesion plates interfere with each other to limit the air circulation between the protective support frames.

[0011] Preferably, the driving assembly includes a mounting shaft, the mounting shaft is fixedly mounted on both ends of the rotating adhesion plate, the mounting shaft is rotatably connected to the side extension plate, a driven gear is fixedly mounted on the mounting shaft, a telescopic rod is fixedly mounted on the upper end of the side extension plate, a tooth plate is fixedly mounted on the free end of the telescopic rod, the tooth plate is slidably connected to the side extension plate, and the driven gears are meshed with the tooth plate.

[0012] Preferably, the telescopic rod is a cylinder, a controller is fixedly installed in the protective support frame, the telescopic rod is controlled by the controller, and when the telescopic rod on the inner baffle unit is extended, the telescopic rod on the outer baffle unit is in a retracted state.

[0013] Preferably, an inner filter is fixedly mounted on a side of the generator fixing frame away from the protective support frame, and a buffer layer is provided at the connection between the generator fixing frame and the protective support frame.

[0014] Preferably, the quick-release assembly includes an inner fixing page and an outer installation page, the inner fixing page is fixedly installed on the outer side of the generator fixing frame by bolts, the inner fixing page is distributed at the four corners of the generator fixing frame and the upper and lower inner fixing pages are symmetrically arranged with the center line of the generator fixing frame as the symmetry axis, the outer installation page is fixedly installed on the inner wall of the protective support frame by bolts, the upper outer installation page is above the upper inner fixing page, and the lower outer installation page is below the lower inner fixing page.

[0015] Preferably, a main connecting rod is rotatably mounted on a side of the outer mounting page close to the generator fixing frame, and an end of the main connecting rod close to the inner fixing page can be threadedly connected to the inner fixing page, and a connecting plate is fixedly mounted on an end of the main connecting rod away from the inner fixing page, a secondary connecting rod is rotatably mounted on the connecting plate, and the secondary connecting rod can be threadedly connected to the generator fixing frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, through the staggered opening and closing of the outer baffle unit and the inner baffle unit, when the external air flow enters the generator fixing frame, it will contact the outer baffle unit or the rotating adhesion plate on the surface of the outer baffle unit. The rotating adhesion plate adsorbs impurities such as cotton wool in the air onto the rotating adhesion plate, thereby preventing foreign objects from entering the interior of the generator fixing frame through the air outlet, and further preventing foreign objects from entering the gearbox. When cleaning is required, the protective support frame can be disassembled, and the surface of the rotatable rotating adhesion plate can be cleaned. The rotation of the rotating adhesion plate enables users to fully access the outer surface of the rotating adhesion plate, reducing the cleaning difficulty.

[0018] 2. The protective support frame of the present invention rotates through the main connecting rod inside the outer mounting page, so that the bottom of the main connecting rod is threadedly connected inside the inner fixing page. The protective support frame and the generator fixing frame are quickly connected and fixed through the thread, and it is convenient to disassemble. The main connecting rod is screwed into the inner fixing page, and the upper and lower main connecting rods are respectively inserted into the inner fixing page from the upper and lower sides, making the connection between the protective support frame and the generator fixing frame more stable, reducing the possibility of the protective support frame falling off due to vibration, and the lower end of the secondary connecting rod on the main connecting rod is threadedly connected to the generator fixing frame, further increasing the connection stability between the outer mounting page and the generator fixing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic view of the structure from the rear side perspective of the present invention;

[0021] Figure 2 For the present invention Figure 1 Partial schematic view of the structure at A in it;

[0022] Figure 3 For the present invention Figure 1 Partial schematic view of the structure at B in it;

[0023] Figure 4 It is a schematic view of the structure from the front side perspective of the present invention;

[0024] Figure 5 For the present invention Figure 4 Partial schematic view of the structure at C in it;

[0025] Figure 6 It is a cross-sectional view of the structure of the present invention;

[0026] Figure 7 For the present inventionFigure 6 Partial structural schematic diagram at position D in the middle.

[0027] In the attached drawings: 1. Protective support frame; 2. Generator fixing frame; 3. Inner filter screen; 4. Inner fixing page; 5. Outer mounting page; 6. Main connecting rod; 7. Secondary connecting rod; 8. Connecting plate; 9. Embedded ring; 10. Side extension plate; 11. Rotating adhesion plate; 12. Tooth plate; 13. Driven gear; 14. Mounting shaft; 15. Telescopic rod; 16. Buffer layer. Specific implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0029] Please refer to Figures 1-7 , the present invention provides a technical solution:

[0030] A wind turbine gearbox exhaust port protection cover structure includes a protective support frame 1 and a generator fixing frame 2. The generator fixing frame 2 is fixedly welded at the position of the gearbox exhaust port. The protective support frame 1 is connected to the generator fixing frame 2 through a quick-release component. The protective support frame 1 is provided with:

[0031] A flow-blocking component, which includes an inner flow-blocking unit and an outer flow-blocking unit. Both the inner flow-blocking unit and the outer flow-blocking unit are fixed inside the protective support frame 1. Both the inner flow-blocking unit and the outer flow-blocking unit have two states: closed and open. A plurality of groups of rotating adhesion plates 11 are rotatably connected to both the inner flow-blocking unit and the outer flow-blocking unit;

[0032] A driving component, which can control the opening and closing of the inner flow-blocking unit and the outer flow-blocking unit, and can make the opening and closing states of the inner flow-blocking unit and the outer flow-blocking unit alternate.

[0033] In the present invention, the protective support frame 1 is fixed on the generator fixing frame 2 by a quick-release assembly, and the exhaust port of the gear box is located at the generator fixing frame 2, and the exhaust gas flows out through the protective support frame 1. During the outflow process, the gas first enters the protective support frame 1 through the inner baffle unit, and then is discharged to the outside air through the outer baffle unit. At the same time, the external air flowing into the equipment also needs to pass through the outer baffle unit and the inner baffle unit in sequence. Through the staggered opening and closing of the outer baffle unit and the inner baffle unit, the external airflow will contact the outer baffle unit or the rotating adhesion plate 11 on the surface of the outer baffle unit before entering the generator fixing frame 2. Impurities such as cotton wool in the air are adsorbed onto the rotating adhesion plate 11 by the rotating adhesion plate 11, thereby preventing foreign matter from entering the inside of the generator fixing frame 2 through the exhaust port, and thus foreign matter from entering the inside of the gear box. When cleaning is needed, the protective support frame 1 can be disassembled to clean the surface of the rotatable rotating adhesion plate 11. Through the rotation of the rotating adhesion plate 11, the user can fully contact the outer surface of the rotating adhesion plate 11, thereby reducing the difficulty of cleaning.

[0034] The baffle assembly includes an inner ring 9, which is fixedly installed between the protective support frame 1, an inner baffle unit is fixedly arranged on a side of the inner ring 9 close to the generator fixing frame 2, and an outer baffle unit is fixedly arranged on a side of the inner ring 9 away from the generator fixing frame 2. The interior of the inner ring 9 serves as an air flow channel, and the inner baffle unit and the outer baffle unit can shield both ends of the inner ring 9.

[0035] Among them, the inner baffle unit and the outer baffle unit both include side extension plates 10 and rotating adhesion plates 11. Both the inner baffle unit and the outer baffle unit are provided with two groups of side extension plates 10, and the side extension plates 10 are symmetrically distributed on both sides of the embedded ring 9. Multiple groups of rotating adhesion plates 11 are rotatably connected between the side extension plates 10. When the rotating adhesion plates 11 rotate vertically, adjacent rotating adhesion plates 11 interfere with each other to limit the air circulation between the protective support frames 1.

[0036] When the rotating adhesion plate 11 in the present invention is rotated to a vertical state, the ends of adjacent rotating adhesion plates 11 contact each other, which can block the air circulation. The rotating adhesion plates 11 in the outer baffle unit and the inner baffle unit rotate alternately, ensuring that the air flowing into the protective support frame 1 is in advance in contact with the surface of the rotating adhesion plate 11, thereby ensuring that foreign matter in the air can adhere to the rotating adhesion plate 11, preventing foreign matter from entering the generator fixing frame 2.

[0037] Among them, the driving assembly includes a mounting shaft 14, which is fixedly installed at both ends of the rotating adhesion plate 11, and the mounting shaft 14 is rotatably connected to the side extension plate 10. A driven gear 13 is fixedly installed on the mounting shaft 14, and a telescopic rod 15 is fixedly installed on the upper end of the side extension plate 10. A tooth plate 12 is fixedly installed on the free end of the telescopic rod 15. The tooth plate 12 is slidably connected to the side extension plate 10, and the driven gears 13 are meshed with the tooth plate 12.

[0038] The telescopic rod 15 drives the toothed plate 12 to slide up and down. Through the interaction between the toothed plate 12 and the driven gear 13, the driven gear 13 is driven to rotate. The rotation of the driven gear 13 drives the rotating adhesion plate 11 to rotate. As a result, after the rotating adhesion plate 11 rotates from the vertical state to the horizontal state and then rotates back to the vertical state in the reverse direction.

[0039] Among them, the telescopic rod 15 is a cylinder. Controllers are fixedly installed inside the protective support frame 1. The telescopic rods 15 are all controlled by the controllers. When the telescopic rods 15 on the inner baffle unit extend, the telescopic rods 15 on the outer baffle unit are in a contracted state. The cylinder serves as the telescopic rod 15 to drive the toothed plate 12 to slide up and down, and the cylinders on the inner baffle unit and the outer baffle unit work in opposite directions.

[0040] Among them, an inner filter screen 3 is fixedly installed on one side of the generator fixing frame 2 away from the protective support frame 1. A buffer layer 16 is provided at the connection between the generator fixing frame 2 and the protective support frame 1. The vibration between the protective support frame 1 and the generator fixing frame 2 is reduced through the buffer layer 16.

[0041] Among them, the quick-release assembly includes an inner fixing page 4 and an outer mounting page 5. The inner fixing page 4 is fixedly installed on the outside of the generator fixing frame 2 by bolts. The inner fixing pages 4 are distributed at the four corners of the generator fixing frame 2, and the upper and lower inner fixing pages 4 are symmetrically arranged with the midline of the generator fixing frame 2 as the axis of symmetry. The outer mounting page 5 is fixedly installed on the inner wall of the protective support frame 1 by bolts. The upper outer mounting page 5 is above the upper inner fixing page 4, and the lower outer mounting page 5 is below the lower inner fixing page 4. The protective support frame 1 and the generator fixing frame 2 are connected through the outer mounting page 5 and the inner fixing page, avoiding the problem of cumbersome disassembly and assembly in the previous method of fixing by bolts.

[0042] Among them, a main connecting rod 6 is rotatably installed on one side of the outer mounting page 5 close to the generator fixing frame 2. One end of the main connecting rod 6 close to the inner fixing page 4 can be threadedly connected to the inner fixing page 4. A connecting plate 8 is fixedly installed at the end of the main connecting rod 6 away from the inner fixing page 4. A secondary connecting rod 7 is rotatably installed on the connecting plate 8, and the secondary connecting rod 7 can be threadedly connected to the generator fixing frame 2. In the protective support frame 1 of the present invention, the main connecting rod 6 in the outer mounting page 5 rotates, so that the bottom of the main connecting rod 6 is threadedly connected inside the inner fixing page 4. The protective support frame 1 and the generator fixing frame 2 are quickly connected and fixed by threads and are convenient to disassemble. The main connecting rod 6 is screwed into the inner fixing page 4, and the upper and lower main connecting rods 6 are respectively inserted into the inner fixing page 4 from the upper and lower sides, making the connection between the protective support frame 1 and the generator fixing frame 2 more stable and reducing the possibility of the protective support frame 1 falling off due to vibration. Moreover, the lower end of the secondary connecting rod 7 on the main connecting rod 6 is threadedly connected to the generator fixing frame 2, further increasing the connection stability between the outer mounting page 5 and the generator fixing frame 2.

Claims

1. A wind turbine gearbox exhaust port protection cover structure, comprising a protection support frame (1) and a generator fixing frame (2), characterized in that: The generator fixing frame (2) is fixedly welded at the gear box exhaust port position, the protection support frame (1) is connected to the generator fixing frame (2) via a quick-release assembly, and the protection support frame (1) is provided with: A baffle assembly, the baffle assembly comprising an inner baffle unit and an outer baffle unit, the inner baffle unit and the outer baffle unit are both fixed in the protection support frame (1), the inner baffle unit and the outer baffle unit are both provided with two states, closed and open, and the inner baffle unit and the outer baffle unit are both rotatably connected to a plurality of groups of rotating adhesive plates (11); A driving component, wherein the driving component can control the opening and closing of the inner flow blocking unit and the outer flow blocking unit, and the driving component can make the opening and closing states of the inner flow blocking unit and the outer flow blocking unit be staggered.

2. The structure of the air outlet protective cover of the gearbox of a wind turbine generator set according to claim 1, wherein: The baffle assembly comprises an inner ring (9), the inner ring (9) being fixedly mounted between the protective support frames (1), the inner baffle unit being fixedly arranged on a side of the inner ring (9) close to the generator fixing frame (2), and the outer baffle unit being fixedly arranged on a side of the inner ring (9) away from the generator fixing frame (2).

3. The structure of the wind turbine gearbox exhaust port protective cover according to claim 2, characterized in that: The inner baffle unit and the outer baffle unit both comprise side extension plates (10) and rotating adhesion plates (11). The inner baffle unit and the outer baffle unit are both provided with two groups of side extension plates (10). The side extension plates (10) are symmetrically distributed on both sides of the embedded ring (9). A plurality of groups of rotating adhesion plates (11) are rotatably connected between the side extension plates (10). When the rotating adhesion plates (11) rotate vertically, adjacent rotating adhesion plates (11) contact each other to limit the flow of air between the protective support frames (1).

4. A wind turbine gearbox exhaust port protection cover structure according to claim 3, characterized in that: The driving assembly comprises a mounting shaft (14), wherein the mounting shaft (14) is fixedly mounted at both ends of the rotating adhesive plate (11), the mounting shaft (14) is rotatably connected to the side extension plate (10), a driven gear (13) is fixedly mounted on the mounting shaft (14), a telescopic rod (15) is fixedly mounted on the upper end of each side extension plate (10), a toothed plate (12) is fixedly mounted on the free end of each telescopic rod (15), the toothed plate (12) is slidably connected to the side extension plate (10), and the driven gears (13) are meshed with the toothed plate (12).

5. The structure of the air outlet protection cover of a wind turbine gearbox according to claim 4, characterized in that: The telescopic rod (15) is a cylinder, a controller is fixedly installed in the protection support frame (1), and the telescopic rod (15) is controlled by the controller. When the telescopic rod (15) on the inner baffle unit is extended, the telescopic rod (15) on the outer baffle unit is in a retracted state.

6. The structure of the air outlet protection cover of the gearbox of a wind turbine generator according to claim 5, characterized in that: An inner filter (3) is fixedly mounted on a side of the generator fixing frame (2) away from the protective support frame (1), and a buffer layer (16) is provided at the connection between the generator fixing frame (2) and the protective support frame (1).

7. A wind turbine gearbox exhaust port protective cover structure according to claim 6, characterized in that: The quick-release component includes an inner fixing page (4) and an outer mounting page (5). The inner fixing page (4) is fixedly installed on the outer side of the generator fixing frame (2) by bolts. The inner fixing pages (4) are distributed at the four corners of the generator fixing frame (2), and the upper and lower inner fixing pages (4) are symmetrically arranged with the midline of the generator fixing frame (2) as the axis of symmetry. The outer mounting page (5) is fixedly installed on the inner wall of the protective support frame (1) by bolts. The upper outer mounting page (5) is above the upper inner fixing page (4), and the lower outer mounting page (5) is below the lower inner fixing page (4).

8. A wind turbine gearbox exhaust port protective cover structure according to claim 7, characterized in that: A main connecting rod (6) is rotatably installed on one side of the outer mounting page (5) close to the generator fixing frame (2). One end of the main connecting rod (6) close to the inner fixing page (4) can be threadedly connected to the inner fixing page (4). A connecting plate (8) is fixedly installed at the end of the main connecting rod (6) far from the inner fixing page (4). A secondary connecting rod (7) is rotatably installed on the connecting plate (8), and the secondary connecting rod (7) can be threadedly connected to the generator fixing frame (2).

Images