Wind power generation tower drum connecting structure

Abstract

The application provides a wind power tower connecting structure and relates to the technical field of wind power generation. The connecting mechanism comprises an upper connecting mechanism and a lower connecting mechanism. The upper connecting mechanism comprises an upper connecting inner cylinder, and the lower connecting mechanism comprises a lower connecting inner cylinder. The upper connecting inner cylinder is sleeved at the inner upper end position of the lower connecting inner cylinder. A lower top ring is fixedly arranged at the upper end of the lower connecting inner cylinder. A plurality of lifting mechanisms are hingedly arranged on the surface of the lower top ring at equal intervals. Each of the plurality of lifting mechanisms comprises a lever. A supporting plate and a triangular pressing plate are fixedly arranged at the upper end and the lower end of the lever, respectively. A plurality of movable holes are formed in the surface of the lower top ring at equal intervals. The relative soft connection greatly reduces the influence of tower shaking on the connecting position and avoids metal fatigue damage of the tower connecting position caused by repeated shearing force and tension.

Description

Technical Field

[0001] This invention relates to the field of wind power generation technology, specifically to a wind power generation tower connection structure. Background Technology

[0002] A wind turbine tower is a tower-like structure used to support wind turbine generators. Wind turbine towers are typically made of concrete or steel and have a certain height to allow the wind turbine generators to be installed at a higher position above the ground to obtain stronger wind energy.

[0003] Wind turbine towers are typically divided into multiple sections, each relatively short in height to facilitate transportation and installation. These sections can be connected together by bolts or welding to form a single, integrated tower structure.

[0004] The design of wind turbine towers needs to consider various factors, including ground conditions, wind energy resources, and the weight and size of the wind turbine generator. The height of the tower determines the higher wind layers the wind turbine generator can reach, thereby improving power generation efficiency. Furthermore, the tower needs to have sufficient strength and stability to withstand the effects of wind and other external forces.

[0005] The wind turbine tower plays a crucial role in a wind power generation system. It not only supports the wind turbine generator but also bears its weight and the impact of wind. Therefore, the design and manufacture of the tower require rigorous engineering calculations and testing to ensure its safety and reliability.

[0006] Common wind turbine towers are often connected by bolts, which bear shear and tensile forces. As the wind pushes the wind, the wind turbine tower will continuously sway slightly, which will repeatedly apply shear stress to the bolts at the connection points of the rigid connection. Due to the swaying of the tower, the connecting bolts will be subjected to repeated changes in tensile force. The repeated tightening and loosening can easily cause metal fatigue in the bolts and reduce the service life of the tower connection structure. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this invention provides a wind power tower connection structure that solves the problem of metal fatigue that easily occurs when using traditional rigid connection methods between towers.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the present invention provides the following technical solution: a wind power tower connection structure, comprising an upper connection mechanism and a lower connection mechanism. The upper connection mechanism includes an upper connecting inner cylinder, and the lower connection mechanism includes a lower connecting inner cylinder. The upper connecting inner cylinder is sleeved inside the upper part of the lower connecting inner cylinder. A lower top ring is fixedly provided at the upper end of the lower connecting inner cylinder. Multiple lifting mechanisms are hinged at equal intervals on the surface of the lower top ring. Each of the multiple lifting mechanisms includes a lever. A support plate and a triangular pressure plate are fixedly provided at the upper and lower ends of the lever, respectively. Multiple movable holes are equally spaced through the surface of the lower top ring. Multiple hinge seats are fixedly provided on the upper end face of the lower top ring near the edge of the movable holes. Multiple levers are hinged to the hinge seats. The middle of the multiple levers is through the movable holes. An upper pressure ring is fixedly sleeved at the middle position of the outer side of the upper connecting inner cylinder.

[0011] Preferably, an upper wedge ring is fixedly sleeved on the outer side of the upper connecting inner cylinder near the lower side of the upper pressure ring, and a lower wedge ring is fixedly sleeved on the middle position of the inner side of the lower connecting inner cylinder, with the upper wedge ring movably disposed on the upper end face of the lower wedge ring.

[0012] Preferably, a lower connecting outer cylinder is fixedly sleeved on the outer side of the lower connecting inner cylinder, and an upper connecting outer cylinder is fixedly sleeved on the upper part of the outer side of the upper connecting inner cylinder, with the upper connecting outer cylinder movably disposed on the upper end face of the lower connecting inner cylinder.

[0013] Preferably, an upper connecting flange and a lower connecting flange are fixedly fitted at the upper edge of the upper connecting inner cylinder and the lower edge of the lower connecting inner cylinder, respectively. An upper gasket and a lower gasket are fixedly embedded on the upper end face of the upper connecting flange and the lower end face of the lower connecting flange, respectively. An upper threaded connection hole and a lower threaded connection hole are equally spaced through the surfaces of the upper connecting flange and the lower connecting flange.

[0014] Preferably, a reinforcing ridge is fixedly provided on the rear end face of the lever, a triangular wing plate is fixedly provided on the rear end face of the support plate, and a pad is fixedly provided on the front end face of the support plate.

[0015] Preferably, the upper connecting inner cylinder is fixedly provided with an internal transverse reinforcing ring and an internal longitudinal reinforcing ring.

[0016] Preferably, a pressure groove is provided at the upper end of the upper connecting inner cylinder, and a pressure ring is fixedly provided in the pressure groove.

[0017] Preferably, an upper climbing rod and a lower climbing rod are fixedly installed at the middle position of the outer side of the upper connecting outer cylinder and the lower connecting outer cylinder, respectively.

[0018] Working Principle: The upper and lower connecting mechanisms serve as the connection structure between the wind turbine towers. Through a relatively flexible connection, the impact of tower swaying on the connection position is greatly reduced, avoiding repeated shear and tensile forces that could damage the tower connection. The upper connecting inner cylinder is fitted inside the lower connecting inner cylinder, which supports the upper connecting inner cylinder. When the upper connecting inner cylinder sways, the upper pressure ring, located at the center of its circumference, presses against the triangular pressure plate of the lifting mechanism. Through the lever action hinged to the hinge seat... The support plate fixed to the upper end of the lever lifts and supports the upper connecting inner cylinder. The upper wedge rings connected to the upper and lower connecting inner cylinders press against the upper wedge rings, thus supporting the upper connecting inner cylinder. The upper and lower connecting outer cylinders, which are sleeved on the outside of the upper and lower connecting inner cylinders, play a reinforcing role and enhance the load-bearing capacity of the connecting mechanism. At the same time, the inclined contact surfaces of the upper and lower wedge rings, which have a slope, can move slightly relative to each other while providing support.

[0019] (III) Beneficial Effects

[0020] This invention provides a connection structure for wind power generation towers. It has the following advantages:

[0021] 1. This invention provides a wind power generation tower connection structure. The upper and lower connection mechanisms of this structure serve as the connection structure between the wind power generation towers. Through a relatively soft connection, the impact of tower swaying on the connection position is greatly reduced, avoiding repeated shear and tensile forces that cause metal fatigue damage to the tower connection position. At the same time, the inclined contact surfaces of the upper and lower wedge rings, which have a slope, can move slightly relative to each other while providing support. This allows for a flexible connection between the upper and lower connection mechanisms, preventing the bending moment and axial stress generated by tower swaying from acting directly on the tower, avoiding metal fatigue, and extending the service life of the tower.

[0022] 2. This invention provides a wind power tower connection structure in which an upper connecting inner cylinder is fitted inside a lower connecting inner cylinder, and the lower connecting inner cylinder supports the upper connecting inner cylinder. When the upper connecting inner cylinder sways, the upper pressure ring located at the middle position of the circumference of the upper connecting inner cylinder presses the triangular pressure plate of the lifting mechanism. Through the lever action of the hinge seat, the support plate fixed at the upper end of the lever lifts the upper connecting inner cylinder and supports it, thus playing an auxiliary support role. Attached Figure Description

[0023] Figure 1 This is an overall isometric view of the invention;

[0024] Figure 2This is a schematic diagram of the upper connecting mechanism of the present invention from the axial side.

[0025] Figure 3 This is a schematic diagram of the lower connecting mechanism of the present invention from the axial side.

[0026] Figure 4 This is a half-sectional schematic diagram of the upper connecting mechanism of the present invention;

[0027] Figure 5 This is a half-sectional schematic diagram of the lower connecting mechanism of the present invention;

[0028] Figure 6 This is a front axonometric view of the lifting mechanism of the present invention;

[0029] Figure 7 This is a schematic diagram of the rear axonal side of the lifting mechanism of the present invention.

[0030] The components are as follows: 1. Upper connecting mechanism; 2. Lower connecting mechanism; 3. Upper connecting outer cylinder; 4. Lower connecting outer cylinder; 5. Upper washer; 6. Lower washer; 7. Upper climbing rod; 8. Lower climbing rod; 9. Upper connecting inner cylinder; 10. Upper wedge ring; 11. Upper pressure ring; 12. Upper threaded connection hole; 13. Upper connecting flange; 14. Lower wedge ring; 15. Lifting mechanism; 16. Lower top ring; 17. Lower connecting inner cylinder; 18. Lower connecting flange; 19. Lower threaded connection hole; 20. Internal transverse reinforcing ring; 21. Pressure groove; 22. Internal longitudinal reinforcing ring; 23. Pressure ring; 24. Movable hole; 25. Support plate; 26. Pad plate; 27. Lever; 28. Triangular pressure plate; 29. ​​Triangular wing plate; 30. Hinge seat; 31. Reinforcing ridge. Detailed Implementation

[0031] 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.

[0032] Example:

[0033] like Figure 1-7As shown, this embodiment of the invention provides a wind power tower connection structure, including an upper connection mechanism 1 and a lower connection mechanism 2. The upper connection mechanism 1 includes an upper connecting inner cylinder 9, and the lower connection mechanism 2 includes a lower connecting inner cylinder 17. The upper connecting inner cylinder 9 is sleeved inside the upper end of the lower connecting inner cylinder 17. A lower top ring 16 is fixedly provided at the upper end of the lower connecting inner cylinder 17. Multiple lifting mechanisms 15 are hinged at equal intervals on the surface of the lower top ring 16. Each of the multiple lifting mechanisms 15 includes a lever 27. A support plate 25 and a triangular pressure plate 28 are fixedly provided at the upper and lower ends of the lever 27, respectively. Multiple movable holes 24 are opened through the surface of the lower top ring 16 at equal intervals. Multiple hinge seats 30 are fixedly provided on the upper end face of the lower top ring 16 near the edge of the movable holes 24. Multiple levers 27 are hinged to the hinge seats 30. The middle of the multiple levers 27 is inserted through the movable holes 24. An upper pressure ring 11 is fixedly sleeved at the middle position of the outer side of the upper connecting inner cylinder 9.

[0034] The upper connecting mechanism 1 and the lower connecting mechanism 2 serve as the connecting structures between the wind power generation towers. Through a relatively soft connection, the influence of tower swaying on the connection position is greatly reduced, and repeated shear and tension forces are avoided from damaging the tower connection position. The upper connecting inner cylinder 9 is fitted inside the lower connecting inner cylinder 17, and the lower connecting inner cylinder 17 supports the upper connecting inner cylinder 9. When the upper connecting inner cylinder 9 sways, the upper pressure ring 11, located in the middle of the periphery of the upper connecting inner cylinder 9, presses the triangular pressure plate 28 of the lifting mechanism 15. Through the action of the lever 27 hinged to the hinge seat 30, the support plate 25 fixed at the upper end of the lever 27 lifts and supports the upper connecting inner cylinder 9.

[0035] An upper wedge ring 10 is fixedly sleeved on the outer side of the upper connecting inner cylinder 9 near the lower side of the upper pressure ring 11. A lower wedge ring 14 is fixedly sleeved on the middle of the inner side of the lower connecting inner cylinder 17. The upper wedge ring 10 is movably disposed on the upper end face of the lower wedge ring 14. A lower connecting outer cylinder 4 is fixedly sleeved on the outer side of the lower connecting inner cylinder 17. An upper connecting outer cylinder 3 is fixedly sleeved on the upper end of the outer side of the upper connecting inner cylinder 9. The upper connecting outer cylinder 3 is movably disposed on the upper end face of the lower connecting inner cylinder 17.

[0036] The upper wedge ring 10 presses on the upper part of the lower wedge ring 14, and the lower connecting inner cylinder 17 supports the upper connecting inner cylinder 9. The upper connecting outer cylinder 3 and the lower connecting outer cylinder 4, which are sleeved on the outside of the upper connecting inner cylinder 9 and the lower connecting inner cylinder 17, play a reinforcing role and enhance the load-bearing capacity of the connecting mechanism. At the same time, the inclined contact surfaces of the upper wedge ring 10 and the lower wedge ring 14 with slopes can move slightly relative to each other while providing support.

[0037] An upper connecting flange 13 and a lower connecting flange 18 are fixedly fitted at the upper edge of the upper connecting inner cylinder 9 and the lower edge of the lower connecting inner cylinder 17, respectively. An upper gasket 5 and a lower gasket 6 are fixedly embedded on the upper end face of the upper connecting flange 13 and the lower end face of the lower connecting flange 18, respectively. Upper threaded connection holes 12 and lower threaded connection holes 19 are equally spaced through the surfaces of the upper connecting flange 13 and the lower connecting flange 18. A reinforcing ridge 31 is fixedly provided on the rear end face of the lever 27. A triangular wing plate 29 is fixedly provided on the rear end face of the support plate 25. The reinforcing components are used for structural strength. A pad 26 is fixedly provided on the front end face of the support plate 25. The upper connecting flange 13 and the lower connecting flange 18 are used to connect the connecting parts to the tower cylinder.

[0038] The upper connecting inner cylinder 9 is fixedly provided with an internal transverse reinforcing ring 20 and an internal longitudinal reinforcing ring 22. The upper end of the upper connecting inner cylinder 9 is provided with a pressure groove 21, and a pressure ring 23 is fixedly provided in the pressure groove 21. The upper connecting outer cylinder 3 and the lower connecting outer cylinder 4 are respectively fixedly provided with an upper climbing rod 7 and a lower climbing rod 8 at the middle position of one side of the outer side, which facilitates climbing.

[0039] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wind power generation tower connection structure, comprising an upper connection mechanism (1) and a lower connection mechanism (2), characterized in that: The upper connecting mechanism (1) includes an upper connecting inner cylinder (9), and the lower connecting mechanism (2) includes a lower connecting inner cylinder (17). The upper connecting inner cylinder (9) is sleeved inside the upper part of the lower connecting inner cylinder (17). A lower top ring (16) is fixedly provided at the upper end of the lower connecting inner cylinder (17). Multiple lifting mechanisms (15) are hinged at equal intervals on the surface of the lower top ring (16). Each of the multiple lifting mechanisms (15) includes a lever (27). The upper and lower ends of the lever (27) are respectively A support plate (25) and a triangular pressure plate (28) are fixedly installed. Multiple movable holes (24) are evenly spaced through the surface of the lower top ring (16). Multiple hinge seats (30) are fixedly installed on the upper end face of the lower top ring (16) near the edge of the movable holes (24). Multiple levers (27) are hinged to the hinge seats (30). The middle of the multiple levers (27) is inserted through the movable holes (24). An upper pressure ring (11) is fixedly sleeved on the middle of the outer side of the upper connecting inner cylinder (9).

2. The wind power generation tower connection structure according to claim 1, characterized in that: An upper wedge ring (10) is fixedly fitted on the outer side of the upper connecting inner cylinder (9) near the lower side of the upper pressure ring (11), and a lower wedge ring (14) is fixedly fitted on the middle side of the inner side of the lower connecting inner cylinder (17). The upper wedge ring (10) is movably set on the upper end face of the lower wedge ring (14).

3. The wind power generation tower connection structure according to claim 1, characterized in that: The lower connecting inner cylinder (17) is fixedly sleeved with a lower connecting outer cylinder (4), and the upper connecting outer cylinder (3) is fixedly sleeved with an upper connecting outer cylinder (3) on the upper side of the upper connecting inner cylinder (9). The upper connecting outer cylinder (3) is movably disposed on the upper end face of the lower connecting inner cylinder (17).

4. The wind power generation tower connection structure according to claim 1, characterized in that: The upper edge of the upper connecting inner cylinder (9) and the lower edge of the lower connecting inner cylinder (17) are respectively fixedly fitted with an upper connecting flange (13) and a lower connecting flange (18). An upper gasket (5) and a lower gasket (6) are respectively fixedly embedded on the upper end face of the upper connecting flange (13) and the lower end face of the lower connecting flange (18). An upper threaded connection hole (12) and a lower threaded connection hole (19) are respectively opened through the surfaces of the upper connecting flange (13) and the lower connecting flange (18) at equal intervals.

5. The wind power generation tower connection structure according to claim 1, characterized in that: The lever (27) is fixedly provided with a reinforcing ridge (31) at its rear end, the support plate (25) is fixedly provided with a triangular wing plate (29) at its rear end, and the support plate (25) is fixedly provided with a pad plate (26) at its front end.

6. The wind power generation tower connection structure according to claim 1, characterized in that: The upper connecting inner cylinder (9) is fixedly provided with an internal transverse reinforcing ring (20) and an internal longitudinal reinforcing ring (22).

7. The wind power generation tower connection structure according to claim 1, characterized in that: A pressure groove (21) is provided at the upper end of the upper connecting inner cylinder (9), and a pressure ring (23) is fixedly provided in the pressure groove (21).

8. A wind power generation tower connection structure according to claim 3, characterized in that: The upper connecting outer cylinder (3) and the lower connecting outer cylinder (4) are respectively fixedly installed at the middle position of the outer side of the upper climbing rod (7) and the lower climbing rod (8).

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