Main shaft reinforcing device for GE wind turbine generator of wind power plant

Abstract

The utility model provides a wind power plant GE wind turbine generator main shaft reinforcing device, and relates to the technical field of wind power plants, the wind power plant GE wind turbine generator main shaft reinforcing device comprises a wind turbine generator mounting frame, the inner side of the wind turbine generator mounting frame is provided with a mounting rack, the inner side of the mounting rack is rotatably provided with a plurality of bearings, and the inner sides of the bearings are fixedly provided with wind turbine generator main shafts; the connecting box is arranged below the mounting frame, the connecting blocks are fixedly mounted at the four corners of the bottom of the mounting frame, a wind turbine generator spindle is mounted on the inner side of a bearing above the mounting frame through the arranged wind turbine generator spindle mounting assembly, and the wind turbine generator spindle can be supported in an auxiliary mode through the mounting frame; the main shaft of the wind turbine is connected with the connecting shaft and the blades through the connecting flanges, so that the connection is relatively stable; after the second lead screw rotates, the sliding block and the anti-skid pad can be driven to descend through screw-thread fit, and after the anti-skid pad abuts against the wind turbine installation frame, the wind turbine main shaft can be supported and reinforced.

Description

Technical Field

[0001] This utility model relates to the field of wind farm technology, and in particular to a main shaft reinforcement device for GE wind turbine generators in wind farms. Background Technology

[0002] In existing wind turbine main shaft reinforcement devices, the wind turbine blades rotate due to wind power, which in turn drives the main shaft to rotate, and the rotating main shaft drives the gearbox to generate electricity. However, the main shaft of the existing device is only connected to the wind turbine frame through a single bearing, which is subjected to a large force. The existing device is an integrated unit, which is difficult to disassemble and maintain later. Therefore, we propose a wind farm GE wind turbine main shaft reinforcement device. Summary of the Invention

[0003] In view of this, this application provides a main shaft reinforcement device for GE wind turbines in wind farms, which solves the above-mentioned technical problems to a certain extent.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A GE wind turbine main shaft reinforcement device for a wind farm includes a wind turbine mounting frame, an mounting bracket provided on the inner side of the wind turbine mounting frame, multiple bearings rotatably mounted on the inner side of the mounting bracket, a wind turbine main shaft fixedly mounted on the inner side of the bearings, and a wind turbine main shaft mounting assembly provided above the wind turbine mounting frame, the mounting bracket and the wind turbine main shaft.

[0006] The wind turbine main shaft mounting assembly includes a connecting box, a connecting block, a first lead screw, and a knob. The connecting box is located below the mounting frame, the connecting block is fixedly installed at the four bottom corners of the mounting frame, the first lead screw is rotatably installed inside the connecting box, and the knob is fixedly installed on the outer side of one end of the first lead screw.

[0007] Preferably, a gear set is fixedly installed on the inner wall of one side of the wind turbine mounting frame, a connecting shaft is provided on one side of the gear set, a blade is fixedly installed on the outer side of one end of the wind turbine main shaft, a connecting flange is fixedly installed on the outer side of the wind turbine main shaft, the connecting shaft and the blade, and a wind turbine main shaft support and reinforcement assembly is provided above the wind turbine main shaft mounting assembly.

[0008] Preferably, the wind turbine main shaft mounting assembly further includes a sliding plate and insertion blocks. The sliding plate is threaded onto the left and right sides of the outer side of the first lead screw, and a plurality of the insertion blocks are fixedly mounted on one side of the sliding plate.

[0009] By adopting the above technical solution, the wind turbine main shaft is installed on the inner side of the bearing above the mounting frame. The mounting frame can provide auxiliary support for the wind turbine main shaft. The wind turbine main shaft is connected to the connecting shaft and blades through the connecting flange, which can make the connection more stable. After the second lead screw rotates, it can drive the sliding block and anti-slip pad to descend through the threaded engagement. After the anti-slip pad abuts against the wind turbine mounting frame, it can support and reinforce the wind turbine main shaft.

[0010] Preferably, the wind turbine main shaft support and reinforcement assembly includes a fixed plate, a worm, a bevel gear, a second lead screw, and a worm wheel. Multiple fixed plates are fixedly installed inside the connecting box. Multiple worms are rotatably installed inside the fixed plates. The bevel gear is fixedly installed outside the worm and the first lead screw, with adjacent bevel gears meshing. Multiple second lead screws are rotatably installed inside the connecting box. The worm wheel is fixedly installed outside the second lead screw, and the worm wheel meshes with the worm.

[0011] Preferably, the wind turbine main shaft support reinforcement assembly further includes a fixed sleeve, a sliding block, and an anti-slip pad. Multiple fixed sleeves are fixedly installed at the bottom of the connecting box, the sliding block is threaded onto the outside of the second lead screw, the sliding block is slidably installed on the inside of the fixed sleeve, and the anti-slip pad is fixedly installed on the bottom of the sliding block.

[0012] By adopting the above technical solution, due to the different heights of the wind turbine mounting frames, a through slot is provided above the connecting block, allowing the insertion block to stop at any position inside the slot. The sliding block and anti-slip pad below support and reinforce the connecting box, allowing the connecting box and mounting frame to provide a supporting force for the wind turbine main shaft. When the blades are subjected to excessive force, the wind turbine main shaft will not be damaged or shifted. Furthermore, the installation of this device facilitates the disassembly and maintenance of the wind turbine main shaft by the staff in the later stages.

[0013] Preferably, the top of the connecting box is provided with a connecting groove, the connecting block fits into the connecting groove, and one side of the connecting block is provided with a through groove, the insertion block fits into the through groove.

[0014] Preferably, the top of the mounting bracket is fitted to the inner top wall of the wind turbine mounting frame, and a maintenance disassembly baffle is provided on one side of the wind turbine mounting frame, with multiple threaded holes on the top of the baffle.

[0015] Preferably, a limiting block is provided on the outer side of the sliding block, and a sliding groove is provided on the inner side of the fixed sleeve, with the limiting block slidably installed on the inner side of the sliding groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] (1) The wind turbine main shaft reinforcement device of the present invention is provided by the wind turbine main shaft mounting assembly, which installs the wind turbine main shaft on the inner side of the bearing above the mounting frame. The mounting frame can provide auxiliary support for the wind turbine main shaft. The wind turbine main shaft is connected to the connecting shaft and blades through the connecting flange, which can make the connection more stable. After the second screw rotates, it can drive the sliding block and anti-slip pad to descend through the thread engagement. After the anti-slip pad abuts against the wind turbine mounting frame, it can support and reinforce the wind turbine main shaft.

[0018] (2) The present invention provides a wind farm GE wind turbine main shaft reinforcement device. Through the wind turbine main shaft support reinforcement component, due to the different heights of the wind turbine mounting frame, a through slot is provided above the connecting block, allowing the insertion block to stop at any position inside the slot, and allowing the sliding block and anti-slip pad below to support and reinforce the connecting box. The connecting box and mounting frame can provide a supporting force for the wind turbine main shaft. When the blade is subjected to excessive force, the wind turbine main shaft will not be damaged or shifted. Moreover, the device facilitates the disassembly and maintenance of the wind turbine main shaft by the staff in the later stage.

[0019] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a GE wind turbine main shaft reinforcement device for wind farms proposed in this utility model;

[0021] Figure 2 This is a schematic diagram showing a three-dimensional view of a partial structure of a GE wind turbine main shaft reinforcement device for a wind farm, according to an embodiment of this application.

[0022] Figure 3 A schematic diagram of the exploded portion structure of a GE wind turbine main shaft reinforcement device for a wind farm, provided according to an embodiment of this application, is shown.

[0023] Figure 4 A schematic diagram of the exploded portion structure of a GE wind turbine main shaft reinforcement device for a wind farm, provided according to an embodiment of this application, is shown.

[0024] Figure 5 This is a schematic diagram showing a three-dimensional view of a partial structure of a GE wind turbine main shaft reinforcement device for a wind farm, provided according to an embodiment of this application.

[0025] Figure label:

[0026] 1. Wind turbine main shaft mounting assembly; 2. Wind turbine main shaft support and reinforcement assembly; 3. Wind turbine mounting frame; 4. Gear set; 5. Connecting shaft; 6. Mounting bracket; 7. Bearing; 8. Wind turbine main shaft; 9. Blade; 10. Connecting flange;

[0027] 11. Connecting box; 12. Connecting block; 13. First lead screw; 14. Knob; 15. Sliding plate; 16. Insertion block;

[0028] 21. Fixed plate; 22. Worm gear; 23. Bevel gear; 24. Second lead screw; 25. Worm wheel; 26. Fixed sleeve; 27. Sliding block; 28. Anti-slip pad. Detailed Implementation

[0029] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings;

[0030] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] refer to Figure 1-5 A GE wind turbine main shaft reinforcement device for a wind farm includes a wind turbine mounting frame 3, an mounting bracket 6 is provided on the inner side of the wind turbine mounting frame 3, a plurality of bearings 7 are rotatably mounted on the inner side of the mounting bracket 6, a wind turbine main shaft 8 is fixedly mounted on the inner side of the bearings 7, and a wind turbine main shaft mounting assembly 1 is provided above the wind turbine mounting frame 3, the mounting bracket 6 and the wind turbine main shaft 8.

[0032] The wind turbine main shaft mounting assembly 1 includes a connecting box 11, a connecting block 12, a first lead screw 13, and a knob 14. The connecting box 11 is located below the mounting frame 6. The connecting block 12 is fixedly installed at the four bottom corners of the mounting frame 6. The first lead screw 13 is rotatably installed inside the connecting box 11. The knob 14 is fixedly installed on the outer side of one end of the first lead screw 13.

[0033] In this embodiment, a gear set 4 is fixedly installed on one inner wall of the wind turbine mounting frame 3, a connecting shaft 5 is provided on one side of the gear set 4, a blade 9 is fixedly installed on the outer side of one end of the wind turbine main shaft 8, a connecting flange 10 is fixedly installed on the outer side of the wind turbine main shaft 8, the connecting shaft 5 and the blade 9, and a wind turbine main shaft support and reinforcement assembly 2 is provided above the wind turbine main shaft mounting assembly 1.

[0034] In this embodiment, the wind turbine main shaft mounting assembly 1 also includes a sliding plate 15 and an insertion block 16. The sliding plate 15 is threaded onto the left and right sides of the outer side of the first lead screw 13, and multiple insertion blocks 16 are fixedly mounted on one side of the sliding plate 15. The mounting bracket 6 is mounted on the top of the connecting box 11 via the connecting block 12 below, allowing bearings 7 of different sizes and the wind turbine main shaft 8 to be connected and fixed with the corresponding gear set 4 and connecting shaft 5. At this time, the control knob 14 drives the first lead screw 13 to rotate. After the first lead screw 13 rotates, it can move the sliding plate 15 and the insertion block 16 through the threaded engagement. The insertion block 16 can slide into the inner side of the connecting block 12, which facilitates quick connection and locking of the mounting bracket 6.

[0035] In this embodiment, the wind turbine main shaft support reinforcement assembly 2 includes a fixed plate 21, a worm gear 22, a bevel gear 23, a second lead screw 24, and a worm wheel 25. Multiple fixed plates 21 are fixedly installed inside the connecting box 11. Multiple worm gears 22 are rotatably installed inside the fixed plate 21. The bevel gear 23 is fixedly installed outside the worm gear 22 and the first lead screw 13, with adjacent bevel gears 23 meshing with each other. Multiple second lead screws 24 are rotatably installed inside the connecting box 11. The worm wheel 25 is fixedly installed outside the second lead screw 24, with the worm wheel 25 meshing with the worm gear 22.

[0036] In this embodiment, the wind turbine main shaft support and reinforcement assembly 2 also includes a fixed sleeve 26, a sliding block 27, and an anti-slip pad 28. Multiple fixed sleeves 26 are fixedly installed at the bottom of the connecting box 11. The sliding block 27 is threadedly installed on the outside of the second lead screw 24 and slidably installed on the inside of the fixed sleeve 26. The anti-slip pad 28 is fixedly installed at the bottom of the sliding block 27. When the first lead screw 13 rotates, it can drive the worm gear 22 to rotate through the bevel gear 23. The worm gear 22 can drive the second lead screw 24 to rotate through the worm wheel 25. After the second lead screw 24 rotates, it can drive the sliding block 27 and the anti-slip pad 28 to descend through the threaded engagement. After the anti-slip pad 28 abuts against the wind turbine mounting frame 3, it can support and reinforce the wind turbine main shaft 8.

[0037] In this embodiment, a connecting groove is provided on the top of the connecting box 11, the connecting block 12 fits into the connecting groove, a through groove is provided on one side of the connecting block 12, and the insertion block 16 fits into the through groove; due to the different heights of the wind turbine mounting frame 3, a through groove is provided above the connecting block 12, allowing the insertion block 16 to stop at any position inside the through groove, and allowing the sliding block 27 and anti-slip pad 28 below to support and reinforce the connecting box 11, so that the connecting box 11 and the mounting frame 6 can provide a supporting force for the wind turbine main shaft 8.

[0038] In this embodiment, the top of the mounting bracket 6 is in contact with the top inner wall of the wind turbine mounting frame 3. A maintenance disassembly baffle is provided on one side of the wind turbine mounting frame 3, and multiple threaded holes are provided on the top of the baffle. After the maintenance disassembly baffle is removed, it is convenient for the staff to disassemble and maintain the mounting bracket 6. The mounting bracket 6 abuts against the top inner wall of the wind turbine mounting frame 3, and after the sliding block 27 moves, it can allow the anti-slip pad 28 to abut against the bottom inner wall of the wind turbine mounting frame 3. When the blades 9 are subjected to a large wind force, the wind turbine main shaft 8 will not be damaged.

[0039] In this embodiment, a limiting block is provided on the outer side of the sliding block 27, and a sliding groove is provided on the inner side of the fixed sleeve 26. The limiting block is slidably installed on the inner side of the sliding groove. The sliding groove can limit the sliding block 27, so that the second lead screw 24 will not drive the sliding block 27 to rotate after rotation, and the sliding block 27 can only slide.

[0040] The specific operation is as follows: the wind turbine main shaft 8 is installed inside the bearing 7 above the mounting bracket 6. The mounting bracket 6 provides auxiliary support for the wind turbine main shaft 8. The wind turbine main shaft 8 is connected to the connecting shaft 5 and blade 9 through the connecting flange 10, which makes the connection relatively stable. The mounting bracket 6 is installed above the connecting box 11 through the connecting block 12 below, which allows bearings 7 of different sizes and the wind turbine main shaft 8 to be connected and fixed with the corresponding gear set 4 and connecting shaft 5. At this time, the control knob 14 drives the first lead screw 13 to rotate. After the first lead screw 13 rotates, it can move the sliding plate 15 and the insertion block 16 through the threaded engagement. The insertion block 16 can slide into the inside of the connecting block 12, which facilitates quick connection and locking of the mounting bracket 6. At the same time as the first lead screw 13 rotates, it can drive the worm gear 23 to move the worm. The rod 22 rotates, and the worm gear 22 drives the second lead screw 24 to rotate through the worm wheel 25. After the second lead screw 24 rotates, it drives the sliding block 27 and the anti-slip pad 28 to descend through the threaded engagement. After the anti-slip pad 28 abuts against the wind turbine mounting frame 3, it can support and reinforce the wind turbine main shaft 8. Due to the different heights of the wind turbine mounting frame 3, a through slot is provided above the connecting block 12, which allows the insertion block 16 to stop at any position inside the slot, and allows the sliding block 27 and the anti-slip pad 28 below to support and reinforce the connecting box 11. The connecting box 11 and the mounting frame 6 can provide a supporting force for the wind turbine main shaft 8. When the blade 9 is subjected to excessive force, the wind turbine main shaft 8 will not be damaged or shifted. Moreover, the setting of this device makes it easy for the staff to disassemble and maintain the wind turbine main shaft 8 later.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] 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 device for reinforcing the main shaft of a GE wind turbine in a wind farm, characterized in that, include: A wind turbine mounting frame (3) is provided with a mounting bracket (6) on the inner side of the wind turbine mounting frame (3). Multiple bearings (7) are rotatably mounted on the inner side of the mounting bracket (6). A wind turbine main shaft (8) is fixedly mounted on the inner side of the bearings (7). A wind turbine main shaft mounting assembly (1) is provided above the wind turbine mounting frame (3), the mounting bracket (6) and the wind turbine main shaft (8). The wind turbine main shaft mounting assembly (1) includes a connecting box (11), a connecting block (12), a first lead screw (13), and a knob (14). The connecting box (11) is located below the mounting frame (6). The connecting block (12) is fixedly installed at the four bottom corners of the mounting frame (6). The first lead screw (13) is rotatably installed inside the connecting box (11). The knob (14) is fixedly installed on the outside of one end of the first lead screw (13). The wind turbine main shaft mounting assembly (1) also includes a sliding plate (15) and an insertion block (16). The sliding plate (15) is threaded onto the left and right sides of the outer side of the first lead screw (13), and a plurality of the insertion blocks (16) are fixedly installed on one side of the sliding plate (15). The top of the connecting box (11) is provided with a connecting groove, the connecting block (12) is fitted with the connecting groove, and a through groove is provided on one side of the connecting block (12), and the insert block (16) is fitted with the through groove.

2. The wind farm GE wind turbine main shaft reinforcement device according to claim 1, characterized in that, A gear set (4) is fixedly installed on one side of the inner wall of the wind turbine mounting frame (3). A connecting shaft (5) is provided on one side of the gear set (4). A blade (9) is fixedly installed on the outer side of one end of the wind turbine main shaft (8). A connecting flange (10) is fixedly installed on the outer side of the wind turbine main shaft (8), the connecting shaft (5) and the blade (9). A wind turbine main shaft support and reinforcement assembly (2) is provided above the wind turbine main shaft mounting assembly (1).

3. The wind farm GE wind turbine main shaft reinforcement device according to claim 2, characterized in that, The wind turbine main shaft support reinforcement assembly (2) includes a fixed plate (21), a worm (22), a bevel gear (23), a second lead screw (24), and a worm wheel (25). Multiple fixed plates (21) are fixedly installed inside the connecting box (11). Multiple worms (22) are rotatably installed inside the fixed plate (21). The bevel gear (23) is fixedly installed outside the worm (22) and the first lead screw (13), and adjacent bevel gears (23) mesh with each other. Multiple second lead screws (24) are rotatably installed inside the connecting box (11). The worm wheel (25) is fixedly installed outside the second lead screw (24), and the worm wheel (25) meshes with the worm (22).

4. The wind farm GE wind turbine main shaft reinforcement device according to claim 3, characterized in that, The wind turbine main shaft support reinforcement assembly (2) also includes a fixed sleeve (26), a sliding block (27) and an anti-slip pad (28). Multiple fixed sleeves (26) are fixedly installed at the bottom of the connecting box (11). The sliding block (27) is threadedly installed on the outside of the second lead screw (24). The sliding block (27) is slidably installed on the inside of the fixed sleeve (26). The anti-slip pad (28) is fixedly installed on the bottom of the sliding block (27).

5. The wind farm GE wind turbine main shaft reinforcement device according to claim 1, characterized in that, The top of the mounting bracket (6) is attached to the inner top wall of the wind turbine mounting frame (3). A maintenance disassembly baffle is provided on one side of the wind turbine mounting frame (3), and multiple threaded holes are provided above the baffle.

6. The wind farm GE wind turbine main shaft reinforcement device according to claim 4, characterized in that, The sliding block (27) has a limiting block on its outer side, and the fixed sleeve (26) has a sliding groove on its inner side. The limiting block is slidably installed on the inner side of the sliding groove.

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