Positioning mechanism for butt joint assembly of wind power main shaft
By designing a positioning mechanism for the assembly of wind turbine main shafts, and utilizing the spacing of support blocks, lifting adjustment, and gear transmission system, the positioning problem of wind turbine main shafts under different connection conditions was solved, thus improving assembly efficiency.
Patent Information
- Application Number
- CN202423223608.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The installation of wind turbine main shafts is difficult due to the difficulty in accurately positioning and aligning them for different connection situations, resulting in low assembly efficiency.
A positioning mechanism for the docking and assembly of wind turbine main shafts was designed. By adjusting the spacing and lifting position of the support blocks, a gear transmission system is used to achieve precise positioning and docking assembly of wind turbine main shafts of different sizes.
It improves the docking and assembly efficiency of wind turbine main shafts, adapts to wind turbine main shafts of different sizes, and achieves efficient positioning and docking operations.
Smart Images

Figure CN223889780U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of wind turbine main shaft accessories, specifically a positioning mechanism for the docking and assembly of wind turbine main shafts. Background Technology
[0002] The wind turbine main shaft is a core component of a wind turbine. Its main function is to transfer the wind energy captured by the wind turbine (the blades and hub of the wind turbine) to the generator system, thereby realizing the conversion of wind energy into electrical energy.
[0003] When installing the wind turbine main shaft, it needs to be assembled and connected with the mounting connectors. Since the wind turbine main shaft is large and has many dimensions, and the connection height with the mounting connectors is different, different connection situations require different assembly positions when assembling the wind turbine main shaft. Generally, it is difficult to position and connect the main shaft for different assembly positions during the assembly of the wind turbine main shaft.
[0004] Therefore, it is necessary to design a positioning mechanism for the docking and assembly of wind turbine main shafts to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a positioning mechanism for the docking and assembly of wind turbine main shafts, so as to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning mechanism for the docking and assembly of a wind turbine main shaft, comprising a worktable, side plates fixedly connected to both sides of the worktable, and a groove formed on the top of the worktable. A bidirectional threaded rod is rotatably connected inside the groove, and threaded sleeve blocks are threadedly fitted to both ends of the bidirectional threaded rod. One end of the bidirectional threaded rod passes through the outside of one of the side plates, and a knob is fixedly connected to the end of the bidirectional threaded rod outside the side plate. Sliding blocks are fixedly connected to the tops of two threaded sleeve blocks. Two symmetrical fourth rotating shafts are rotatably connected inside the sliding blocks, and second gears are fixedly fitted onto the outer surfaces of both fourth rotating shafts. The two second gears mesh with each other. A third rotating shaft is rotatably connected inside the sliding blocks, and a first gear is fixedly fitted onto the outer surface of the third rotating shaft. The first gear meshes with one of the second gears. Rotating blocks are fixedly fitted onto the outer surfaces of the two sliding blocks. A fifth rotating shaft is rotatably connected to the top of each of the two rotating blocks. A limiting piece is fixedly connected to one end of each of the two fifth rotating shafts. A convex sliding groove is formed on the adjacent side of each of the two sliding blocks, and a T-shaped block is slidably engaged inside each of the two convex sliding grooves. A sliding piece is fixedly connected to one side of each of the two T-shaped blocks, and a lifting block is fixedly connected to the top of each of the two sliding pieces. A support block is fixedly connected to the top of each of the two lifting blocks. Two T-shaped sliding grooves are formed on one side of each of the two lifting blocks. Four sliding pieces and four limiting pieces are slidably disposed inside the four T-shaped sliding grooves. A motor is fixedly connected to the outer surface of one side plate, and a second rotating shaft is fixedly connected to the output shaft of the motor. A connecting rod is fixedly inserted into one end of the second rotating shaft. A first rotating shaft is rotatably connected to the inner side of the other side plate, and both ends of the connecting rod are slidably inserted into the interiors of two third rotating shafts.
[0007] Preferably, the two sides of the two threaded sleeves are respectively attached to the two sides of the groove, and one side of the two sliding pieces are respectively attached to one side of the two sliding blocks, and the two lifting blocks are respectively slidably disposed above the adjacent side of the two sliding blocks.
[0008] Preferably, the gear ratio of the first gear and the second gear is 1:5, the sliding block is a U-shaped block, and the two second gears and the third rotating shaft are arranged in two groups, with the two groups of second gears and the third rotating shaft respectively rotatably disposed inside the two U-shaped openings.
[0009] Preferably, the connecting slide rod is a cross block, and both sides of the two slide blocks are provided with circular holes, and the two ends of the connecting slide rod are respectively slidably disposed inside the four circular holes.
[0010] Preferably, the two ends of the connecting slide rod are fixedly inserted into the interior of the first rotating shaft and the second rotating shaft, respectively.
[0011] Preferably, the two support blocks are slidably disposed between two sliding blocks, and the top of each of the two support blocks is provided with an arc-shaped opening.
[0012] The technical solution provided by this utility model has the following advantages compared with the prior art:
[0013] This invention allows for the adjustment of the distance between two support blocks, facilitating the support and placement of wind turbine main shafts of different sizes. Furthermore, by adjusting the distance between the two support blocks, the rotation of the connecting slide rod can simultaneously drive the two support blocks to adjust their lifting and lowering positions, thereby facilitating the docking and assembly of wind turbine main shafts of different sizes and improving the docking and assembly efficiency of wind turbine main shafts. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is an exploded view of the sliding block structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the threaded sleeve structure of this utility model;
[0017] In the diagram: 1. Workbench; 2. Knob; 3. Side plate; 4. First rotating shaft; 5. Connecting slide rod; 6. Sliding block; 7. Lifting block; 8. Sliding piece; 9. Support block; 10. Motor; 11. Second rotating shaft; 12. Third rotating shaft; 13. First gear; 14. Second gear; 16. Fourth rotating shaft; 17. Rotating block; 18. Fifth rotating shaft; 19. Limiting piece; 21. T-shaped slide groove; 22. Convex slide groove; 23. Threaded sleeve block; 24. Bidirectional threaded rod; 25. Groove. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0019] Obviously, many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0020] Please see Figure 1-3This utility model provides a positioning mechanism for the docking and assembly of wind turbine main shafts, including a worktable 1. Side plates 3 are fixedly connected to both sides of the worktable 1, and a groove 25 is formed on the top of the worktable 1. A bidirectional threaded rod 24 is rotatably connected inside the groove 25. Threaded sleeve blocks 23 are threadedly fitted to both ends of the bidirectional threaded rod 24. One end of the bidirectional threaded rod 24 passes through the outside of one of the side plates 3, and a knob 2 is fixedly connected to the end of the bidirectional threaded rod 24 outside the side plate 3. Sliding blocks 6 are fixedly connected to the tops of the two threaded sleeve blocks 23. Two symmetrical fourth rotating shafts 16 are rotatably connected inside the sliding blocks 6, and second gears 14 are fixedly fitted onto the outer surfaces of the two fourth rotating shafts 16. Two gears 14 mesh, and a third rotating shaft 12 is rotatably connected inside the sliding block 6. A first gear 13 is fixedly sleeved on the outer surface of the third rotating shaft 12. The first gear 13 meshes with a second gear 14. Rotating blocks 17 are fixedly sleeved on the outer surfaces of two fourth rotating shafts 16. A fifth rotating shaft 18 is rotatably connected to the top of each of the two rotating blocks 17. A limiting piece 19 is fixedly attached to one end of each of the two fifth rotating shafts 18. A convex groove 22 is provided on an adjacent side of each of the two sliding blocks 6. A T-shaped block is slidably engaged inside each of the two convex grooves 22. A sliding piece 8 is fixedly attached to one side of each of the two T-shaped blocks. A lifting block 7 is fixedly attached to the top of each of the two sliding pieces 8. Each of the two lifting blocks 7 has a support block 9 fixedly attached to its top. Two T-shaped grooves 21 are formed on one side of each lifting block 7. Sliding pieces 8 and four limiting pieces 19 are slidably disposed within the four T-shaped grooves 21. A motor 10 is fixedly attached to the outer surface of one side plate 3, and the output shaft of the motor 10 is fixedly connected to a second rotating shaft 11. One end of the second rotating shaft 11 is fixedly inserted with a connecting rod 5. A first rotating shaft 4 is rotatably connected to the inner side of the other side plate 3, and both ends of the connecting rod 5 are slidably inserted into the interiors of two third rotating shafts 12. By rotating the knob 2, the distance between the two sliding blocks 6 can be adjusted, thereby adjusting the distance between the two support blocks 9. At this time, the two third rotating shafts 12... The two sliding blocks 6 slide on both ends of the connecting slide rod 5, while the two support blocks 9 facilitate the placement of wind turbine main shafts of different sizes. Then, when the motor 10 is turned on, the slow rotation of the second rotating shaft 11 drives the two third rotating shafts 12 to rotate using the connecting slide rod 5. The deceleration meshing between the two third rotating shafts 12 and the two second gears 14 is used to rotate the four rotating blocks 17, thereby slowly raising the two lifting blocks 7 and adjusting the height of the two support blocks 9. This allows the wind turbine main shaft supported by the top of the two support blocks 9 to be docked and positioned with the connector, thereby improving the docking and assembly efficiency of the wind turbine main shaft.
[0021] Preferably, the two sides of the two threaded sleeves 23 are respectively attached to the two sides of the groove 25, and one side of the two sliding pieces 8 are respectively attached to one side of the two sliding blocks 6, and the two lifting blocks 7 are respectively slidably disposed above the adjacent side of the two sliding blocks 6.
[0022] In order to enable the wind turbine main shaft to perform fine-tuning in the vertical direction, the gear ratio of the first gear 13 and the second gear 14 is 1:5, the sliding block 6 is a U-shaped block, and the two second gears 14 and the third rotating shaft 12 are set as a group, with the two groups of second gears 14 and the third rotating shaft 12 respectively rotatably set inside the two U-shaped openings.
[0023] To facilitate the sliding of the two third rotating shafts 12 on the connecting slide rod 5, and to enable the rotation of the connecting slide rod 5 to drive the two third rotating shafts 12 to rotate, the connecting slide rod 5 is a cross block, and both sides of the two sliding blocks 6 are provided with circular holes, and the two ends of the connecting slide rod 5 are respectively slidably set inside the four circular holes.
[0024] Furthermore, to facilitate the rotational support of the connecting slide rod 5, both ends of the connecting slide rod 5 are respectively fixedly inserted into the interior of the first rotating shaft 4 and the second rotating shaft 11.
[0025] Furthermore, to facilitate the placement of the wind turbine main shaft, two support blocks 9 are slidably positioned between two sliding blocks 6, and both support blocks 9 have arc-shaped openings at their tops.
[0026] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.
[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.
[0028] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.
Claims
1. A positioning mechanism for docking and assembling wind turbine main shafts, comprising a worktable (1), characterized in that: Both sides of the workbench (1) are fixedly connected to side plates (3), and the top of the workbench (1) is provided with a groove (25). A bidirectional threaded rod (24) is rotatably connected inside the groove (25). Both ends of the bidirectional threaded rod (24) are threadedly sleeved with threaded sleeve blocks (23). One end of the bidirectional threaded rod (24) passes through the outside of one side plate (3), and a knob (2) is fixedly connected to the end of the bidirectional threaded rod (24) outside the side plate (3). A sliding block (6) is fixedly connected to the top of each of the two threaded sleeve blocks (23). 6) has two symmetrical fourth rotating shafts (16) internally rotatably connected, and the outer surfaces of the two fourth rotating shafts (16) are fixedly fitted with second gears (14), which mesh with each other. The sliding block (6) also has a third rotating shaft (12) internally rotatably connected, and the outer surface of the third rotating shaft (12) is fixedly fitted with a first gear (13), which meshes with a second gear (14). Furthermore, the outer surfaces of the two fourth rotating shafts (16) are fixedly fitted with rotating blocks (17), which... The top of each block (17) is rotatably connected to a fifth rotating shaft (18). One end of each of the two fifth rotating shafts (18) is fixedly connected to a limiting piece (19). A convex sliding groove (22) is opened on the adjacent side of each of the two sliding blocks (6). A T-shaped block is slidably engaged inside each of the two convex sliding grooves (22). A sliding piece (8) is fixedly connected to one side of each of the two T-shaped blocks. A lifting block (7) is fixedly connected to the top of each of the two sliding pieces (8). A support block (9) is fixedly connected to the top of each of the two lifting blocks (7). One side of each of the two lifting blocks (7) is opened Two T-shaped grooves (21) are provided, and four sliding pieces (8) and four limiting pieces (19) are respectively slidably disposed inside the four T-shaped grooves (21). A motor (10) is fixedly connected to the outer surface of one side plate (3), and the output shaft of the motor (10) is fixedly connected to a second rotating shaft (11). A connecting rod (5) is fixedly inserted into one end of the second rotating shaft (11). A first rotating shaft (4) is rotatably connected to the inner side of the other side plate (3), and the two ends of the connecting rod (5) are respectively slidably inserted into the interior of two third rotating shafts (12).
2. The positioning mechanism for docking and assembling wind turbine main shafts according to claim 1, characterized in that: The two threaded sleeves (23) are respectively attached to the two sides of the groove (25), and one side of the two sliding pieces (8) is respectively attached to one side of the two sliding blocks (6). The two lifting blocks (7) are respectively slidably disposed above the adjacent side of the two sliding blocks (6).
3. The positioning mechanism for docking and assembling wind turbine main shafts according to claim 1, characterized in that: The gear ratio of the first gear (13) and the second gear (14) is 1:
5. The sliding block (6) is a U-shaped block. The two second gears (14) and the third rotating shaft (12) are in two groups. The two groups of second gears (14) and the third rotating shaft (12) are respectively rotatably arranged inside the two U-shaped openings.
4. The positioning mechanism for docking and assembling wind turbine main shafts according to claim 1, characterized in that: The connecting slide rod (5) is a cross block, and both sides of the two sliding blocks (6) are provided with circular holes, and the two ends of the connecting slide rod (5) are respectively slidably disposed inside the four circular holes.
5. A positioning mechanism for docking and assembling wind turbine main shafts according to claim 1, characterized in that: The two ends of the connecting slide rod (5) are respectively fixedly inserted into the interior of the first rotating shaft (4) and the second rotating shaft (11).
6. The positioning mechanism for docking and assembling wind turbine main shafts according to claim 1, characterized in that: The two support blocks (9) are slidably disposed between the two sliding blocks (6), and the top of the two support blocks (9) is provided with an arc-shaped opening.