A connecting structure of a wind power tower

Abstract

The utility model relates to wind power tower drum technical field discloses a kind of connecting structure of wind power tower drum, comprising: first mounting piece has the first plug-in part being arranged at both ends, and first mounting piece is provided with first plug-in slot;Second mounting piece is provided with multiple, and second mounting piece has the plug-in assembly being arranged at both ends, and plug-in assembly includes: second plug-in part, third plug-in part and second plug-in slot, second plug-in part and third plug-in part are spaced apart along height direction, and second plug-in slot is formed between second plug-in part and third plug-in part, and second plug-in slot is used to simultaneously plug-in any two of first plug-in part, second plug-in part and third plug-in part;Multiple second mounting pieces are staggered along height direction and form tower drum, and the utility model is stacked to form tower drum by first mounting piece and second mounting piece in turn, does not need to use adhesive joint when installing, also does not need to grout it, reduces construction procedure, greatly shortens the installation period of tower drum.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine tower technology, and specifically to a connection structure for a wind turbine tower. Background Technology

[0002] Wind turbine towers are a key component of wind power generation systems. They are mainly used to support the nacelle and blades of wind turbines and to lift the entire wind turbine unit to the appropriate height to capture wind energy more effectively.

[0003] During wind turbine operation, the wind turbine tower is subjected to bending and torsional coupling, which can easily lead to the separation of horizontal joints and misalignment of vertical joints, causing damage to the tower at the joint locations. Vertical and horizontal joints are weak points and critical stress areas in the structural load-bearing capacity, and are easily affected by quality problems such as uneven mixing of structural adhesive and loose joint surfaces, thus becoming the control points of the tower's load-bearing capacity.

[0004] Therefore, during the installation of wind turbine concrete towers, the joints between vertical and horizontal seams require the application of structural adhesive or wet grouting to improve the structural strength of the tower. However, the adhesive application and wet grouting processes, which increase construction time and strength, significantly extend the tower installation period and increase construction costs. Utility Model Content

[0005] In view of this, the present invention provides a connection structure for wind turbine towers to solve the problems of long installation cycle and high cost in the existing tower installation process.

[0006] In a first aspect, this utility model provides a connection structure for a wind turbine tower, comprising: a first mounting member having a first plug-in portion disposed at both ends, the first plug-in portion protruding outward, and a first plug-in groove disposed on the first mounting member near the first plug-in portion; The second mounting component is provided in multiple ways. The second mounting component has plug-in components provided at both ends. The plug-in components include: a second plug-in part, a third plug-in part, and a second plug-in groove. The second plug-in part and the third plug-in part are spaced apart along the height direction, and the second plug-in groove is formed between the second plug-in part and the third plug-in part. The second insertion slot is used to simultaneously insert any two of the first insertion part, the second insertion part, and the third insertion part; Multiple second mounting members are staggered along the height direction to form a tower. A first mounting member is provided at the upper end and the lower end of the tower, so that the upper end face and the lower end face of the tower form a plane. The first mounting member and the second mounting member are detachably connected, and two adjacent second mounting members are detachably connected.

[0007] Beneficial effects: By setting up a first mounting component and a second mounting component, which are stacked sequentially to form a tower, no adhesive or grouting is required during installation, reducing construction steps, greatly shortening the tower installation cycle, and lowering construction costs.

[0008] In one alternative implementation, at least one fastener is provided between two adjacent stacked second mounting components.

[0009] Beneficial effects: By connecting the second mounting parts with fasteners, the second mounting parts can be installed quickly. During installation, multiple second mounting parts only need to be plugged into each other, and then fastened quickly. This eliminates the need to apply glue between the second mounting parts, thus improving construction efficiency.

[0010] In one alternative implementation, the fastener is arranged in a vertical direction.

[0011] Beneficial effects: By setting the fasteners vertically, two adjacent second mounting parts are fixed together by the vertically set fasteners. At this time, the vertical stress of the tower is transferred through the fasteners, which enhances the structural stability of the tower in the vertical direction, effectively resists the vertical force on the wind turbine tower during operation, and further ensures the overall structural strength of the tower.

[0012] In one alternative embodiment, any two adjacent second mounting members in the vertical direction are connected by the fastener, which passes through the second insertion portion of the upper second mounting member and is threadedly connected to the third insertion portion of the lower second mounting member.

[0013] Beneficial effects: By setting fasteners to lock and fix any two second mounting parts, the connection between the second mounting parts of the tower is more stable and reliable. This not only facilitates installation and disassembly, but also ensures that the connection can withstand greater tensile and compressive forces, effectively preventing the tower from loosening or separating due to vibration or wind during operation.

[0014] In one alternative embodiment, a threaded element is provided on the third insertion portion of the second mounting member, and the fastener is threadedly connected to the threaded element.

[0015] Beneficial effects: By setting threaded parts on the third plug part, the fasteners can be firmly connected to the second mounting part by threaded connection, effectively dispersing and bearing various stresses generated by the tower during operation, thereby further improving the overall structural stability and safety of the tower.

[0016] In one optional embodiment, the second mounting member is provided with a first through groove, the first through groove passing through the first insertion part and the second insertion part in a vertical direction, and the first mounting member is provided with a second through groove corresponding to the first through groove. The fastener is disposed in the first through groove and / or the second through groove.

[0017] Beneficial effects: By setting a first through groove that runs vertically through the first and second insertion parts on the second mounting part, and a corresponding second through groove on the first mounting part, and setting fasteners in the first and / or second through grooves, the stress generated by the tower during operation can be better dispersed, and stress concentration can be avoided from causing damage to the connection parts.

[0018] In one optional embodiment, threaded portions are provided at both ends of the fastener along its length, and a locking member is provided in the first through groove of the second insertion portion, the locking member being threadedly connected to the upper end of the fastener.

[0019] Beneficial effects: The locking mechanism ensures the tightness between two adjacent second mounting parts, effectively preventing the fasteners from loosening or falling off due to vibration or other reasons during tower operation, and further enhancing the stability and reliability of the tower connection structure.

[0020] In one optional embodiment, the upper end of the first through groove is provided with a snap-fit ​​groove with a diameter larger than that of the first through groove, the locking member is disposed in the snap-fit ​​groove, and the height of the upper end face of the locking member does not exceed the height of the upper end face of the second mounting member.

[0021] Beneficial effects: The snap-fit ​​groove design provides a more stable installation position for the locking component, preventing it from shifting during tower operation and ensuring that the fasteners remain firmly secured. Simultaneously, the setting that the height of the upper surface of the locking component does not exceed the height of the upper surface of the second mounting component avoids the locking component protruding and interfering with the installation of other second mounting components, keeping the upper surface of the second mounting components flat.

[0022] In one alternative embodiment, the second insertion groove is recessed inward at the end of the second mounting member, and the width of the second insertion groove gradually decreases as it recesses inward from the end.

[0023] Beneficial effects: The second insertion groove is recessed inward from the end and gradually decreases in width, which provides better guidance for the mating second insertion part during assembly, enabling more precise and faster insertion and improving installation efficiency. At the same time, the gradually decreasing width of the second insertion groove increases friction and stability after insertion, further enhancing the connection strength of the second mounting component.

[0024] In one optional embodiment, the second and third plug-in portions are provided with a first arc-shaped chamfer on the edge near the second plug-in slot; The first plug portion has a second arc-shaped chamfer on the side near the first plug slot.

[0025] Beneficial effects: The setting of the first and second arc-shaped chamfers reduces stress concentration, improves the fatigue strength and service life of components, and further ensures the stability and reliability of the wind turbine tower connection structure. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a perspective view of the connection structure of a wind turbine tower according to an embodiment of the present utility model; Figure 2 for Figure 1 A perspective view of the first mounting component; Figure 3 for Figure 1 A perspective view of the second mounting component; Figure 4 for Figure 1 A top view of the connection structure of the wind turbine tower. Figure 5 for Figure 4 AA section view in the middle; Figure 6 for Figure 5 Enlarged view of part A in the image; Figure 7 for Figure 1 A perspective view of the second mounting component; Figure 8 This is a front view of the connection structure of a wind turbine tower according to an embodiment of the present utility model; Figure 9 for Figure 8 A 3D view of the wind turbine tower after the first mounting component is stacked and installed.

[0028] Explanation of reference numerals in the attached figures: 1. First mounting component; 2. First insertion part; 3. First insertion slot; 4. Second mounting component; 5. Second insertion part; 6. Third insertion part; 7. Second insertion slot; 8. Fastener; 9. Threaded component; 10. First through slot; 11. Second through slot; 12. Threaded part; 13. Snap-fit ​​slot; 14. Locking component; 15. First arc chamfer; 16. Second arc chamfer; 17. Base. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] The following is combined Figures 1 to 7 The following describes embodiments of the present invention.

[0031] like Figure 1 , Figure 2 , Figure 3 As shown, according to an embodiment of the present invention, a connection structure for a wind turbine tower is provided, comprising: a first mounting member 1 and a second mounting member 4. The first mounting member 1 has first insertion portions 2 disposed at both ends, the first insertion portions 2 protruding outwards along the extending direction of the first mounting member 1. A first insertion groove 3 is disposed on the first mounting member 1 near the first insertion portion 2; that is, both the first insertion portion 2 and the first insertion groove 3 are disposed at the ends along the extending direction of the first mounting member 1, and there are two of each. Multiple second mounting members 4 are provided, each having insertion assemblies disposed at both ends. Each insertion assembly includes: a second insertion portion 5, a third insertion portion 6, and a second insertion groove 7. The second insertion portions 5 and the third insertion portions 6 are spaced apart along the height direction, and a second insertion groove 7 is formed between the second insertion portions 5 and the third insertion portions 6. The second insertion groove 7 is used to simultaneously insert any two of the first insertion portions 2, the second insertion portions 5, and the third insertion portions 6.

[0032] Multiple second mounting parts 4 are staggered along the height direction to form a tower. A first mounting part 1 is provided at the upper end and the lower end of the tower, so that the upper end face and the lower end face of the tower form a plane. The first mounting part 1 and the second mounting part 4 are detachably connected, and two adjacent second mounting parts 4 are detachably connected to each other.

[0033] Installation steps: Place the first mounting component 1 on the base 17. Insert the third connector 6 of the first second mounting component 4 into the first connector slot 3 of the first mounting component 1. Take the second second mounting component 4 and place it on top of the first mounting component 1. Insert the third connector 6 of the second second mounting component 4 into the second connector slot 7 of the first second mounting component 4. At this time, the first connector 2 of the first mounting component 1 and the third connector 6 of the second mounting component 4 are inserted into the second connector slot 7 of the first second mounting component 4. Take the third second mounting component 4 and place it on top of the second second mounting component 4. Insert the third connector 6 of the third second mounting component 4 into the second connector slot 7 of the second mounting component 4. Continue in this manner to complete the installation of multiple second mounting components 4. Finally, install a first mounting component 1 at the top of the tower to form the tower. The first mounting component 1 and the second mounting component 4 are detachably connected.

[0034] Specifically, a base 17 is provided below the tower. The first mounting component 1 and the second mounting component 4 are both installed on the base 17. The structure of the base 17 is an existing design, and will not be described in detail in this embodiment.

[0035] By setting up a first mounting component 1 and a second mounting component 4, which are arranged in an alternating and stacked manner to form a tower, no adhesive or grouting is required during installation. The first mounting component 1 and the second mounting component 4 are designed to be detachable, which reduces the number of construction steps, greatly shortens the installation cycle of the tower, and reduces the construction cost.

[0036] Specifically, the first mounting component 1 and the second mounting component 4 are arc-shaped and made of concrete. The arc lengths of the first mounting component 1 and the second mounting component 4 are each half the circumference of a circle. They need to be interlocked to form a circle, and then stacked vertically to form a tower. Alternatively, the first mounting component 1 and the second mounting component 4 can be set to one-third the arc length of a circle. Or, the first mounting component 1 and the second mounting component 4 can each be set to half the arc length of an ellipse.

[0037] like Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, in this embodiment, at least one fastener 8 is provided between two adjacent stacked second mounting members 4, and multiple second mounting members 4 are detachably connected by fasteners 8. The fasteners 8 are arranged vertically. Any two adjacent second mounting members 4 in the vertical direction are connected by fasteners 8, with the fastener 8 passing through the second insertion portion 5 of the upper second mounting member 4 and threadedly connected to the third insertion portion 6 of the lower second mounting member 4. During installation, the lower end of the first mounting member 1 is connected to the base 17 via fasteners 8, thereby fixing the first mounting member 1 to the base 17. Then, another second mounting member 4 is inserted into the first mounting member 1, with the fastener 8 passing vertically from top to bottom and connecting to the second mounting member 4; another second mounting member 4 is stacked on top of the first mounting member 1, with the fastener 8 passing through the stacked second mounting members 4 and connecting to the first mounting member 1, and so on, to complete the tower installation. The second mounting components 4 are connected by fasteners 8, enabling rapid installation. During installation, multiple second mounting components 4 are simply plugged into each other and quickly secured using fasteners 8, eliminating the need for adhesive and improving construction efficiency. By vertically positioning the fasteners 8, adjacent second mounting components 4 are fixed together, transferring vertical stress to the tower and enhancing its structural stability in the vertical direction, effectively resisting vertical forces acting on the wind turbine tower during operation. It should be noted that, as an alternative implementation, a single fastener 8 can be used between the second mounting components 4, positioned at half the arc length of the second mounting component 4, allowing it to pass through the stacked components for secure installation after insertion. Alternatively, multiple fasteners 8 can be used to increase the connection strength of the second mounting components 4. Alternatively, the fastener 8 can be configured to be horizontally oriented, with radially outwardly extending lugs at both ends of the second mounting member 4. When the two second mounting members 4 are inserted, the lugs of the two second mounting members 4 abut against each other, and the fastener 8 passes through the two lugs and is then secured by a nut. Additionally, an annular connecting plate is provided on the upper and lower end faces of the second mounting member 4, extending radially inward. The connecting plate of the upper second mounting member 4 and the connecting plate of the lower second mounting member 4 abut against each other when the two second mounting members 4 are stacked. The fastener 8 passes through the connecting plate and is then locked by a nut.

[0038] Specifically, the first mounting component 1 and the second mounting component 4 are also connected by a fastener 8. After the first mounting component 1 and the second mounting component 4 are inserted, the fastener 8 passes vertically through the first insertion part 2 of the first mounting component 1 and then connects to the third insertion part 6 of the second mounting component 4.

[0039] like Figure 6 As shown, in this embodiment, each second mounting member 4 has a threaded part 9 on its third insertion portion 6, and the fastener 8 is threadedly connected to the threaded part 9. Specifically, the threaded part 9 is cylindrical and fixedly mounted on the third insertion portion 6, and the threaded part 9 has an internal thread. The lower end of the fastener 8 has an external thread, and the lower end of the fastener 8 is threadedly connected to the threaded part 9. During installation, the fastener 8 passes through the second insertion portion 5 of the upper second mounting member 4 and connects to the third insertion portion 6 of the lower second mounting member 4. By providing the threaded part 9 on the third insertion portion 6, the fastener 8 can be securely connected to the second mounting member 4 by a threaded connection, effectively distributing and bearing various stresses generated by the tower during operation, thereby further improving the overall structural stability and safety of the tower. It should be noted that, as an alternative implementation, the threaded part 9 can also be directly set as the internal threaded hole of the third insertion portion 6. In addition, the threaded part 9 can also be set as other shapes, such as a hexagon with an internal threaded hole.

[0040] like Figure 2 , Figure 3 As shown, in this embodiment, the second mounting member 4 is provided with a first through groove 10, which extends vertically through the first insertion part 2 and the second insertion part 5. The first mounting member 1 is provided with a second through groove 11 corresponding to the first through groove 10. When the first mounting member 1 and the second mounting member 4 are inserted, the first through groove 10 and the second through groove 11 correspond to each other in the vertical direction, and the fastener 8 can pass through the first through groove 10 and enter the second through groove 11 to be threadedly connected to the first mounting member 1. Similarly, when two second mounting members 4 are inserted, the first through grooves 10 of the two second mounting members 4 also correspond to each other in the vertical direction. At this time, the fastener 8 can pass through the first through groove 10 of the upper second mounting member 4 and enter the first through groove 10 of the lower second mounting member 4 to be threadedly connected to the threaded part 9 in the first through groove 10 of the lower second mounting member 4. At this time, the fastener 8 is located in the first through groove 10 and the second through groove 11. Specifically, the diameter of the first through groove 10 and the second through groove 11 is larger than the diameter of the fastener 8. By providing a first through groove 10 that extends vertically through the first insertion portion 2 and the second insertion portion 5 on the second mounting component 4, and a corresponding second through groove 11 on the first mounting component 1, and by placing the fastener 8 within the first through groove 10 and the second through groove 11, the stress generated by the tower during operation can be better dispersed, preventing stress concentration from damaging the connection parts. It should be noted that, as an alternative implementation, the first through groove 10 and the second through groove 11 can be configured as square grooves.

[0041] like Figure 6 , Figure 7As shown, in this embodiment, threaded portions 12 are provided at both ends of the fastener 8 along its length, and the threaded portions 12 are external threads. A locking member 14 is provided in the first through groove 10 of the second insertion portion 5, and the locking member 14 is threadedly connected to the upper end of the fastener 8. During installation, after the fastener 8 passes through the upper second mounting member 4, it connects to the threaded part 9 of the lower second mounting member 4. At this time, the locking member 14 is connected to the upper threaded portion 12 of the fastener 8, thereby restricting the movement of the two second mounting members 4 and further enhancing the stability and reliability of the tower connection structure. Specifically, the locking member 14 is a hexagonal nut. It should be noted that, as an alternative implementation, the threaded portion 12 can also be set as an internal thread.

[0042] Specifically, after the fastener 8 is installed in place, a protective sleeve is fitted on top of the fastener 8. The protective sleeve is made of corrosion-resistant and rust-proof material, such as stainless steel. The protective sleeve is cylindrical and fits over the fastener 8 and the locking element 14 to prevent them from corroding or rusting.

[0043] Specifically, such as Figure 7 As shown, an external thread is provided at the middle position along the length of the fastener 8. The threads at both ends of the fastener 8 and the external thread at the middle position protrude, and the diameter of all three thread segments is larger than the diameter of the fastener 8. When the first second mounting piece 4 and the first mounting piece 1 are installed, the fastener 8 is inserted into the first through slot 10 above the first second mounting piece 4. The thread at the lower end of the fastener 8 first connects with the locking piece 14. Continue to screw the fastener 8 downwards. When the fastener 8 is halfway in, due to the protruding external thread in the middle, the middle thread of the fastener 8 connects with the locking piece 14 again, thus temporarily fixing the fastener 8. After that, after the second second mounting piece 4 is snapped into place, continue to screw the fastener 8, causing the locking piece 14 to disengage from the fastener 8. The fastener 8 continues to move downwards, so that the lower end of the fastener 8 connects with the threaded piece 9, and the upper end connects with the locking piece 14. When screwing, a wrench can be used to screw the fastener 8. After the fastener 8 is installed in place, the upper end of the fastener 8 is higher than the locking member 14, but still lower than the upper surface of the second mounting member 4.

[0044] like Figure 6As shown, in this embodiment, the upper end of the first through groove 10 is provided with a snap-fit ​​groove 13 with a diameter larger than that of the first through groove 10. The locking member 14 is disposed in the snap-fit ​​groove 13, and the height of the upper end face of the locking member 14 does not exceed the height of the upper end face of the second mounting member 4. Specifically, the snap-fit ​​groove 13 is a cylindrical groove that extends along the upper end face of the second mounting member 4 toward the threaded member 9. The diameter of the snap-fit ​​groove 13 is larger than the diameter of the locking member 14, thereby facilitating the tightening of the locking member 14. The design of the snap-fit ​​groove 13 provides a more stable installation position for the locking member 14, preventing the locking member 14 from shifting during tower operation, thereby ensuring that the fastener 8 always maintains a good tightness. At the same time, the setting that the height of the upper end face of the locking member 14 does not exceed the height of the upper end face of the second mounting member 4 means that the length of the fastener 8 is less than the height of the second mounting member 4. This avoids the locking member 14 and the fastener 8 protruding and interfering with the installation of other second mounting members 4, keeping the upper end face of the second mounting member 4 flat. When tightening the locking member 14, a hexagonal socket is placed on the locking member 14 to tighten it. It should be noted that, as an alternative implementation, the snap-fit ​​groove 13 can also be square.

[0045] like Figure 3 As shown, in this embodiment, the second insertion groove 7 is located at the inwardly recessed end of the second mounting member 4. The width of the second insertion groove 7 gradually decreases as it recesses inward from the end, forming a trapezoidal groove. "Inwardly recessed" refers to the groove recessing circumferentially from one end of the second mounting member 4 towards the other. "Width" refers to the dimension of the second insertion groove 7 along the vertical direction of the tower. The inwardly recessed and gradually narrowing width of the second insertion groove 7 provides better guidance for the mating second insertion part 5 during assembly, enabling more precise and rapid insertion and improving installation efficiency. Simultaneously, the gradually narrowing width of the second insertion groove 7 increases the friction after insertion, further enhancing the connection strength of the second mounting member 4. Specifically, the first insertion part 2, the second insertion part 5, and the third insertion part 6 have the same shape and size. Taking the first insertion part 2 as an example: First insertion part 2. It should be noted that, as an alternative implementation, the second insertion groove 7 can also be set to other shapes, such as a rectangle.

[0046] like Figure 2 , Figure 3As shown, in this embodiment, the second insertion part 5 and the third insertion part 6 are provided with a first arc-shaped chamfer 15 near the second insertion groove 7, and the first insertion part 2 is provided with a second arc-shaped chamfer 16 near the first insertion groove 3. Specifically, the second insertion part 5 and the third insertion part 6 are respectively provided with chamfers on two sides at the opening of the groove, and also with chamfers on two sides inside the second insertion groove 7. The provision of the first arc-shaped chamfer 15 and the second arc-shaped chamfer 16 reduces stress concentration, improves the fatigue strength and service life of the components, and further ensures the stability and reliability of the wind turbine tower connection structure. It should be noted that, as an alternative implementation, the arc-shaped chamfer can also be set as a beveled angle.

[0047] Working principle: such as Figure 8 , Figure 9 As shown, during installation, the first mounting part 1 should first be placed stably on the base 17. The base 17 has two internal threaded holes. Align the second through slot 11 of the first mounting part 1 with the two internal threaded holes. Pass the fastener 8 through the second through slot 11 of the first mounting part 1 and thread it into the internal threaded hole of the base 17, thus fixing the first mounting part 1 to the base 17. At this time, the first insertion part 2 of the first mounting part 1 is positioned above the base 17, away from the base 17. Next, take the first second mounting part 4, align its third insertion part 6 with the first insertion slot 3 of the first mounting part 1, and slowly and steadily insert it horizontally, ensuring a complete fit. Tighten the fastener 8 downwards from the first through slot 10 of the first second mounting part 4 to fix the second mounting part 4 and the first mounting part 1. Then, take the second second mounting part 4, position it directly above the first mounting part 1, and accurately insert its third insertion part 6 into the second insertion slot 7 of the first second mounting part 4. At this point, the connection method within the second insertion slot 7 of the first second mounting piece 4 is as follows: the lower part of the second insertion slot 7 connects to the first insertion part 2 of the first mounting piece 1, and the upper part of the second insertion slot 7 connects to the third insertion part 6 of the second mounting piece 4. Each time a new second mounting piece 4 is installed, the two second mounting pieces 4 are secured with fasteners 8. The third second mounting piece 4 is placed above the first second mounting piece 4, and its third insertion part 6 is precisely inserted into the second insertion slot 7 of the second mounting piece 4 following the same procedure. The fasteners 8 pass through the third second mounting piece 4 and are then secured to the threaded part 9 of the first second mounting piece 4. This progressive method is used to complete the stacking installation of all the second mounting pieces 4. After all the second mounting pieces 4 are installed, a first mounting piece 1 is installed at the top of the tower structure, thus completing the process. Figure 7 The tower shown can be assembled as a whole, and a wind turbine can be installed on the top of the tower.

[0048] Additionally, when disassembly is required, remove the wind turbine, rotor, and nacelle from the tower. Remove the steel strands, release the tension, and slowly lower them to the ground. Remove the first mounting component 1 at the top of the tower, unscrew the nut to remove the fastener 8, and then remove the corresponding second mounting component 4. Continue removing the second mounting component 4 gradually. During removal, use a crane to lower the second mounting component 4 to the ground. In other words, disassembly of the tower is performed in reverse order.

[0049] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A connection structure for a wind turbine tower, characterized in that, include: The first mounting component (1) has a first plug-in portion (2) disposed at both ends, the first plug-in portion (2) protruding outward, and a first plug-in groove (3) is provided on the first mounting component (1) near the first plug-in portion (2). The second mounting component (4) is provided in multiple ways. The second mounting component (4) has a plug-in assembly provided at both ends. The plug-in assembly includes: a second plug-in part (5), a third plug-in part (6), and a second plug-in groove (7). The second plug-in part (5) and the third plug-in part (6) are spaced apart along the height direction. The second plug-in groove (7) is formed between the second plug-in part (5) and the third plug-in part (6). The second insertion slot (7) is used to simultaneously insert any two of the first insertion part (2), the second insertion part (5) and the third insertion part (6); Multiple second mounting parts (4) are staggered along the height direction to form a tower. A first mounting part (1) is provided at the upper end and the lower end of the tower, so that the upper end face and the lower end face of the tower form a plane. The first mounting part (1) and the second mounting part (4) are detachably connected, and two adjacent second mounting parts (4) are detachably connected.

2. The connection structure of the wind turbine tower according to claim 1, characterized in that, At least one fastener (8) is provided between two adjacent stacked second mounting pieces (4).

3. The connection structure of the wind turbine tower according to claim 2, characterized in that, The fastener (8) is set in the vertical direction.

4. The connection structure of the wind turbine tower according to claim 2, characterized in that, Any two adjacent second mounting parts (4) in the vertical direction are connected by fasteners (8), which pass through the second insertion part (5) of the upper second mounting part (4) and are threadedly connected to the third insertion part (6) of the lower second mounting part (4).

5. The connection structure of the wind turbine tower according to claim 4, characterized in that, The third insertion part (6) of the second mounting part (4) is provided with a threaded part (9), and the fastener (8) is threadedly connected to the threaded part (9).

6. The connection structure of the wind turbine tower according to claim 4, characterized in that, The second mounting component (4) is provided with a first through groove (10), which passes through the first plug-in part (2) and the second plug-in part (5) in a vertical direction. The first mounting component (1) is provided with a second through groove (11) corresponding to the first through groove (10). The fastener (8) is disposed in the first through groove (10) and / or the second through groove (11).

7. The connection structure of the wind turbine tower according to claim 6, characterized in that, The fastener (8) has threaded portions (12) at both ends along its length. A locking member (14) is provided in the first through groove (10) of the second insertion portion (5). The locking member (14) is threadedly connected to the upper end of the fastener (8).

8. The connection structure of the wind turbine tower according to claim 7, characterized in that, The upper end of the first through groove (10) is provided with a snap-fit ​​groove (13) with a diameter larger than that of the first through groove (10). The locking member (14) is disposed in the snap-fit ​​groove (13). The height of the upper end face of the locking member (14) does not exceed the height of the upper end face of the second mounting member (4).

9. The connection structure of the wind turbine tower according to any one of claims 1 to 6, characterized in that, The second insertion groove (7) is recessed inward at the end of the second mounting member (4), and the width of the second insertion groove (7) gradually decreases as it recesses inward from the end.

10. The connection structure of the wind turbine tower according to claim 9, characterized in that, The second plug-in portion (5) and the third plug-in portion (6) are provided with a first arc-shaped chamfer (15) on the side near the second plug-in groove (7); The first plug part (2) has a second arc-shaped chamfer (16) on the side near the first plug groove (3).

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