Steel-concrete combined structure of wind power tower

By combining the guide rod and storage hopper of the steel-concrete composite structure, and using a bevel gear system and concrete slurry to fill the gaps, the problem of low transportation and assembly efficiency of wind turbine towers is solved, and a fast and highly stable connection is achieved.

CN117128141BActive Publication Date: 2026-01-27HUANENG RENEWABLES CORP LTD HEBEI BRANCH
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Patent Information

Application Number
CN202311316468.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-10-11
Publication Date
2026-01-27
Estimated Expiration
2043-10-11

AI Technical Summary

Technical Problem

Wind turbine towers need to be processed and assembled separately during transportation, and the existing bolt connection method is cumbersome and has limited stability, resulting in long assembly time.

Method used

It adopts a steel-concrete composite structure, and uses an inlet rod and a storage hopper to achieve rapid fixation through a micro motor-driven bevel gear system. Combined with concrete grout to fill the joint gaps, it improves stability.

Benefits of technology

It enables rapid assembly and highly stable connection of wind turbine towers, reduces the hassle of bolted connections, and improves assembly efficiency and structural stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117128141B_ABST
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Abstract

The application discloses a kind of steel and concrete combined structure of wind power tower in the technical field of wind power tower, including device main body, the upper end edge of device main body is equipped with upper embedded groove, the middle position of upper embedded groove is fixedly installed with upper embedded block, the lower end of device main body is fixedly installed with lower embedded block, and lower embedded block is provided with lower embedded groove, upper installation slot is provided in device main body, lower installation slot is provided in device main body below corresponding upper installation slot, driving bevel gear is rotatably installed in upper installation slot, the upper surface of driving bevel gear is fixedly installed with lead-in rod, the upper end of lead-in rod extends to the upper side of device main body, locking structure is provided in upper installation slot, grouting assembly is provided in lower installation slot, device main body is provided with multiple and is sequentially spliced from top to bottom, lead-in rod is introduced into lower installation slot in upper end after splicing, provide the wind power tower structure that can be quickly assembled and spliced higher stability.
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Description

Technical Field

[0001] This invention relates to the field of wind turbine tower technology, specifically to a steel-concrete composite structure for wind turbine towers. Background Technology

[0002] Wind turbine support structures are tall and large, making them inconvenient to transport. To facilitate the transportation of wind turbine towers, they are usually processed and formed separately, and then assembled after being transported to the wind turbine installation location.

[0003] The assembly of wind turbine towers often requires the use of bolts and other structures to fix and connect the upper and lower components of the tower. Bolt installation is cumbersome, has limited stability, and takes a long time to process.

[0004] Based on this, the present invention designs a steel-concrete composite structure for wind turbine towers to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a steel-concrete composite structure for wind turbine towers, which can be quickly assembled and spliced ​​to provide a wind turbine tower structure with higher stability.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A steel-concrete composite structure for a wind turbine tower includes a main body. An upper embedding groove is formed on the upper edge of the main body. An upper embedding block is fixedly installed in the middle of the upper embedding groove. A lower embedding block is fixedly installed at the lower end of the main body. A lower embedding groove is formed between the lower embedding blocks. An upper mounting groove is provided inside the main body. A lower mounting groove is provided inside the main body below the upper mounting groove. A drive bevel gear is rotatably installed in the upper mounting groove. A guide rod is fixedly installed on the upper surface of the drive bevel gear. The upper end of the guide rod extends above the main body. A locking structure is provided in the upper mounting groove. A grouting assembly is provided in the lower mounting groove. The main body consists of multiple sets of components that are sequentially spliced ​​together. After splicing, the lower guide rod is guided into the upper lower mounting groove.

[0008] Preferably, the locking structure includes a mounting plate, which has multiple sets of mounting plates, all of which are fixedly installed in the upper mounting groove. A threaded component is rotatably mounted on the mounting plate. A driven bevel gear is fixedly mounted on one end of the threaded component near the driving bevel gear. A fixing rod is internally threaded onto the threaded component. One end of the fixing rod is slidably connected to the main body of the device. A through groove is provided on the upper embedded block at the position corresponding to the fixing rod. The through groove matches the fixing rod.

[0009] Preferably, the grouting assembly includes an inlet rod, the inlet rod having a movable groove, a sluice plate being fixedly installed at the upper end of the movable groove, a protrusion being fixedly installed on the upper surface of the sluice plate, and a plurality of extension grooves being provided in the main body of the device at the position between the upper mounting groove and the lower mounting groove, the upper end of the extension groove being below the movable groove, and the lower end of the extension groove being above the lower embedding groove.

[0010] Preferably, a lower guide groove is provided at the middle position of the lower surface of the main body of the device, and multiple limiting grooves are provided at the edge of the lower guide groove. A limiting block is fixedly installed on the outer surface of the guide rod, and the limiting block matches the limiting groove.

[0011] Preferably, a storage hopper is fixedly installed on the upper surface of the lower mounting groove, a connecting pipe is fixedly installed at the lower end of the storage hopper, a sealing ring is fixedly installed at the lower end of the connecting pipe, and a movable plug is movably installed inside the sealing ring, the movable plug matching the protrusion.

[0012] Preferably, a driven gear is rotatably mounted at the middle position of the lower mounting groove, and a snap-fit ​​groove is formed at the middle position of the driven gear, which matches the guide rod. A driving gear is rotatably mounted on one side of the lower mounting groove, and the driving gear meshes with the driven gear.

[0013] Preferably, the upper embedding groove matches the lower embedding block, the upper embedding block matches the lower embedding groove, and the lower embedding block is also provided with a through groove corresponding to the position of the fixing rod.

[0014] Preferably, a side mounting groove is formed on the upper surface sidewall of the main body of the device corresponding to the position of the through groove, and a magnetic block is fixedly installed in the side mounting groove. The magnetic block is magnetically attracted to the front end of the fixing rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. In this invention, through the cooperation between the guide rod and the storage hopper, the micro motor in the lower device body drives the active gear to rotate, which in turn drives the guide rod to rotate. The rotation of the guide rod drives the active bevel gear to rotate, which in turn drives the driven bevel gear to rotate. The driven bevel gear rotates, which in turn drives the threaded part to rotate. The rotation of the threaded part interacts with the fixed rod, thereby driving the fixed rod to move upward out of the mounting slot, so that the fixed rod is embedded in the through slot, thereby fixing the upper device body and the lower device body together, avoiding the trouble of bolt fixing connection and improving the efficiency of device assembly.

[0017] 2. The protrusion on the guide rod gradually enters the connecting pipe, causing the upper end of the protrusion to abut against the movable plug. This causes the movable plug to detach from the sealing ring, thus eliminating the sealing effect of the movable plug on the storage hopper. As a result, the concrete slurry in the storage hopper falls through the movable groove, then flows into the extension groove, and finally falls into the lower embedding groove and lower embedding block of the lower device body. This allows the concrete slurry to fix the lower device body to the lower end. By filling the connection gaps between the splicing device bodies with the concrete slurry, the connection between the device bodies becomes more stable, thereby increasing the stability of the wind turbine frame structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a top-view structural diagram of the present invention;

[0020] Figure 2 For the present invention Figure 1 A partial structural diagram at point A in the middle;

[0021] Figure 3 This is a schematic diagram of the structure of the present invention from a low-angle view.

[0022] Figure 4 For the present invention Figure 3 A partial structural diagram at point B in the middle;

[0023] Figure 5 This is a cross-sectional view of the structure of the present invention;

[0024] Figure 6 For the present invention Figure 5 A partial structural diagram at point C;

[0025] Figure 7 For the present invention Figure 5 A partial structural diagram at point D;

[0026] Figure 8 For the present invention Figure 5 A partial structural diagram at point E in the middle;

[0027] Figure 9 For the present invention Figure 5 A partial structural diagram at point F.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Main body of the device; 2. Upper embedding groove; 3. Upper embedding block; 4. Side mounting groove; 5. Through groove; 6. Guide rod; 7. Movable groove; 8. Magnetic block; 9. Lower embedding block; 10. Lower embedding groove; 11. Lower guide groove; 12. Limiting groove; 13. Lower mounting groove; 14. Upper mounting groove; 15. Extension groove; 16. Driving bevel gear; 17. Protrusion; 18. Limiting block; 19. Slotted plate; 20. Mounting plate; 21. Driven bevel gear; 22. Fixing rod; 23. Threaded part; 24. Driving gear; 25. Driven gear; 26. Storage hopper; 27. Connecting pipe; 28. Sealing ring; 29. ​​Movable plug. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-9 The present invention provides a technical solution:

[0032] A steel-concrete composite structure for a wind turbine tower includes a main body 1. An upper embedding groove 2 is formed on the upper edge of the main body 1. An upper embedding block 3 is fixedly installed in the middle of the upper embedding groove 2. A lower embedding block 9 is fixedly installed at the lower end of the main body 1. A lower embedding groove 10 is formed between the lower embedding blocks 9. An upper mounting groove 14 is provided inside the main body 1. A lower mounting groove 13 is provided inside the main body 1 below the upper mounting groove 14. A drive bevel gear 16 is rotatably installed in the upper mounting groove 14. An guide rod 6 is fixedly installed on the upper surface of the drive bevel gear 16. The upper end of the guide rod 6 extends above the main body 1. A locking structure is provided in the upper mounting groove 14. A grouting assembly is provided in the lower mounting groove 13. The main body 1 consists of multiple sets of components that are sequentially spliced ​​together. After splicing, the lower guide rod 6 is guided into the upper lower mounting groove 13.

[0033] The locking structure includes a mounting plate 20, which has multiple sets of mounting plates, all of which are fixedly installed in the upper mounting groove 14. A threaded part 23 is rotatably mounted on the mounting plate 20. A driven bevel gear 21 is fixedly mounted on one end of the threaded part 23 near the driving bevel gear 16. A fixing rod 22 is internally threaded to the threaded part 23. One end of the fixing rod 22 is slidably connected to the main body 1 of the device. A through groove 5 is opened on the upper embedded block 3 at the position corresponding to the fixing rod 22. The through groove 5 matches the fixing rod 22.

[0034] The grouting assembly includes an inlet rod 6, a movable groove 7 is provided inside the inlet rod 6, a sluice plate 19 is fixedly installed at the upper end of the movable groove 7, a protrusion 17 is fixedly installed on the upper surface of the sluice plate 19, and a plurality of extension grooves 15 are provided in the main body 1 of the device at the position between the upper mounting groove 14 and the lower mounting groove 13. The upper end of the extension groove 15 is below the movable groove 7, and the lower end of the extension groove 15 is above the lower embedded groove 10.

[0035] The device body 1 has a lower guide groove 11 in the middle of its lower surface, and multiple limiting grooves 12 are provided on the edge of the lower guide groove 11. A limiting block 18 is fixedly installed on the outer surface of the guide rod 6, and the limiting block 18 matches the limiting groove 12.

[0036] The upper surface of the lower mounting groove 13 is fixedly mounted with a storage hopper 26, the lower end of the storage hopper 26 is fixedly mounted with a connecting pipe 27, the lower end of the connecting pipe 27 is fixedly mounted with a sealing ring 28, and a movable plug 29 is movably mounted inside the sealing ring 28, which matches the protrusion 17.

[0037] Among them, a driven gear 25 is rotatably installed in the middle position of the lower mounting groove 13. A snap-fit ​​groove is opened in the middle position of the driven gear 25, which matches the guide rod 6. A driving gear 24 is rotatably installed on one side of the lower mounting groove 13, and the driving gear 24 meshes with the driven gear 25.

[0038] Among them, the upper embedding groove 2 matches the lower embedding block 9, the upper embedding block 3 matches the lower embedding groove 10, and the lower embedding block 9 is also provided with a through groove 5 at the position corresponding to the fixing rod 22.

[0039] Among them, a side mounting groove 4 is provided on the upper surface side wall of the main body 1 corresponding to the position of the through groove 5. A magnetic block 8 is fixedly installed in the side mounting groove 4, and the magnetic block 8 is magnetically attracted to the front end of the fixing rod 22.

[0040] In this invention, during tower assembly, the lower embedding block 9 and lower embedding groove 10 at the lower end of the device body 1 are embedded into the upper embedding groove 2 and upper embedding block 3 of the lower device body 1. This allows the guide rod 6 of the lower device body 1 to be embedded into the lower guide groove 11. As the guide rod 6 moves upward and is embedded into the upper guide groove, the protrusion 17 on the guide rod 6 gradually enters the connecting pipe 27, causing the upper end of the protrusion 17 to abut against the movable plug 29. This causes the movable plug 29 to detach from the sealing ring 28, thereby allowing the movable plug 29 to disengage. The sealing effect of the movable plug 29 on the storage hopper 26 disappears, allowing the concrete slurry in the storage hopper 26 to fall through the movable groove 7, then flow from the movable groove 7 into the extension groove 15, and then fall from the extension groove 15 into the lower embedding groove 10 and the lower embedding block 9 of the lower device body 1. This allows the concrete slurry to fix the lower device body 1 to the lower end. By filling the connection gap between the splicing device bodies 1 with the concrete slurry, the connection between the device bodies 1 becomes more stable, thereby increasing the stability of the wind turbine frame structure.

[0041] In this invention, after the two main body 1s of the device are spliced ​​together, the micro motor inside the lower main body 1 drives the active gear 24 to rotate. The rotation of the active gear 24 drives the driven gear 25 to rotate. The rotation of the driven gear 25 drives the lower guide rod 6 to rotate. The rotation of the guide rod 6 drives the active bevel gear 16 to rotate. The rotation of the active bevel gear 16 drives the driven bevel gear 21 to rotate. The rotation of the driven bevel gear 21 drives the threaded part 23 to rotate. The rotation of the threaded part 23 interacts with the fixing rod 22, thereby driving the fixing rod 22 to move outward from the upward mounting groove 14, so that the fixing rod 22 is embedded in the through groove 5, thereby fixing the upper main body 1 and the lower main body 1 together, avoiding the trouble of bolt fixing connection and improving the efficiency of device assembly.

[0042] In this invention, through the cooperation between the guide rod 6 and the storage hopper 26, the micro motor inside the lower device body 1 drives the active gear 24 to rotate, which in turn drives the guide rod 6 to rotate. The rotation of the guide rod 6 drives the active bevel gear 16 to rotate, which in turn drives the driven bevel gear 21 to rotate. The driven bevel gear 21 then drives the threaded component 23 to rotate. The rotation of the threaded component 23 interacts with the fixing rod 22, thereby driving the fixing rod 22 to move outward from the upward mounting groove 14, thus embedding the fixing rod 22 into the through groove 5. This fixes the upper device body 1 and the lower device body 1 together, avoiding the hassle of bolted connections and improving the efficiency of device assembly. The protrusions 17 on the guide rod 6 gradually... The concrete slurry gradually enters the connecting pipe 27, causing the upper end of the protrusion 17 to abut against the movable plug 29, thereby causing the movable plug 29 to disengage from the sealing ring 28. This eliminates the sealing effect of the movable plug 29 on the storage hopper 26, allowing the concrete slurry in the storage hopper 26 to fall through the movable groove 7 and then flow from the movable groove 7 into the extension groove 15. From the extension groove 15, it falls into the lower embedding groove 10 and the lower embedding block 9 of the lower device body 1, thus fixing the lower device body 1 to the lower end. By filling the connection gaps between the splicing device bodies 1 with the concrete slurry, the connection between the device bodies 1 becomes more stable, thereby increasing the stability of the wind turbine frame structure.

Claims

1. A steel-concrete composite structure for a wind turbine tower, comprising a main body (1), characterized in that: The upper edge of the device body (1) is provided with an upper embedding groove (2), and an upper embedding block (3) is fixedly installed in the middle of the upper embedding groove (2). A lower embedding block (9) is fixedly installed at the lower end of the device body (1). A lower embedding groove (10) is provided between the lower embedding blocks (9). An upper mounting groove (14) is provided inside the device body (1). A lower mounting groove (13) is provided inside the device body (1) below the upper mounting groove (14). An active bevel gear (16) is rotatably installed in the upper mounting groove (14). An inlet rod (6) is fixedly installed on the upper surface of the active bevel gear (16). The upper end of the inlet rod (6) extends to the top of the device body (1). A locking structure is provided in the upper mounting groove (14). A grouting component is provided in the lower mounting groove (13). The device body (1) is provided with multiple sets of components that are spliced ​​together in sequence. After splicing, the lower inlet rod (6) is inserted into the upper lower mounting groove (13). The locking structure includes a mounting plate (20), which has multiple sets of fixed installations in the upper mounting groove (14). A threaded component (23) is rotatably installed on the mounting plate (20). A driven bevel gear (21) is fixedly installed at one end of the threaded component (23) near the driving bevel gear (16). A fixing rod (22) is threadedly connected to the threaded component (23). One end of the fixing rod (22) is slidably connected to the main body (1) of the device. A through groove (5) is opened on the upper embedded block (3) corresponding to the position of the fixing rod (22). The through groove (5) matches the fixing rod (22). The grouting assembly includes an inlet rod (6), an movable groove (7) is provided in the inlet rod (6), a drain plate (19) is fixedly installed at the upper end of the movable groove (7), a protrusion (17) is fixedly installed on the upper surface of the drain plate (19), and a plurality of extension grooves (15) are provided in the main body (1) of the device corresponding to the position between the upper mounting groove (14) and the lower mounting groove (13). The upper end of the extension groove (15) is below the movable groove (7), and the lower end of the extension groove (15) is above the lower embedded groove (10). A storage hopper (26) is fixedly installed on the upper surface of the lower mounting groove (13). A connecting pipe (27) is fixedly installed at the lower end of the storage hopper (26). A sealing ring (28) is fixedly installed at the lower end of the connecting pipe (27). A movable plug (29) is movably installed inside the sealing ring (28). The movable plug (29) matches the protrusion (17).

2. The steel-concrete composite structure for a wind turbine tower according to claim 1, characterized in that: The lower surface of the main body (1) of the device has a lower guide groove (11) in the middle position, and multiple limiting grooves (12) are provided on the edge of the lower guide groove (11). A limiting block (18) is fixedly installed on the outer surface of the guide rod (6), and the limiting block (18) matches the limiting groove (12).

3. The steel-concrete composite structure for a wind turbine tower according to claim 2, characterized in that: A driven gear (25) is rotatably mounted in the middle of the lower mounting groove (13). A snap-fit ​​groove is provided in the middle of the driven gear (25), and the snap-fit ​​groove matches the guide rod (6). A driving gear (24) is rotatably mounted on one side of the lower mounting groove (13), and the driving gear (24) meshes with the driven gear (25).

4. The steel-concrete composite structure for a wind turbine tower according to claim 3, characterized in that: The upper embedding groove (2) matches the lower embedding block (9), the upper embedding block (3) matches the lower embedding groove (10), and the lower embedding block (9) is also provided with a through groove (5) corresponding to the position of the fixing rod (22).

5. The steel-concrete composite structure for a wind turbine tower according to claim 4, characterized in that: The upper surface sidewall of the main body (1) of the device is provided with a side mounting groove (4) corresponding to the position of the through groove (5). A magnetic block (8) is fixedly installed in the side mounting groove (4). The magnetic block (8) is magnetically attracted to the front end of the fixing rod (22).

Citation Information

Patent Citations

  • Splicing structure and method for hybrid tower for wind power

    CN110863955A

  • Splicing device for tower drum body of wind driven generator

    CN219654818U