Plug-in type quick connection structure of modularized wind power blade

Abstract

The plug-in type quick connecting structure of the modularized wind power blade comprises a first module and a second module, a supporting cylinder is arranged in the first module, and a fixing plate and a fixing cylinder are arranged in the second module. A moving assembly driven by an adjusting screw rod is arranged in the supporting cylinder, and a frustum is connected to the moving assembly. An inserting column assembly capable of sliding in the radial direction is arranged in the fixing cylinder, and an inserting column is matched with the frustum under the reset effect of a spring. During installation, the frustum is pushed to extrude the balls by rotating the adjusting screw rod, so that the insertion columns are inserted into the corresponding insertion holes, rapid insertion and preliminary fixation between the modules are realized, and connection is completed by matching with a small number of bolts. According to the structure, the number of bolts is reduced, the installation process is simplified, and the assembly efficiency and connection stability of the modular wind power blade are improved.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine blade technology, and in particular to a plug-in quick connection structure for modular wind turbine blades. Background Technology

[0002] Wind turbine blades are key components of wind turbine generators, responsible for capturing the kinetic energy of the wind and converting it into mechanical energy to drive the generator and produce electricity. Wind turbine blades are typically made of lightweight but high-strength materials such as fiberglass, carbon fiber, and resin. Their shape and size are carefully designed to improve wind energy utilization efficiency and ensure the efficient operation of the wind turbine generator.

[0003] According to the technical solution disclosed in Chinese utility model patent (CN218407666U), the existing modular wind turbine blade connection structure uses a clamping plate and a second bolt to achieve further lateral fixation, and the contact between the second bolt and the outer side of the fixing plate enhances the fixing force along the blade's length. This method strengthens the tension between the two fixing plates, thereby improving structural strength. However, the inventors discovered that traditional connection methods place high demands on the strength of the bolts and connection points, especially in the axial direction of the bolts. Due to the centrifugal force generated by the blades during operation, bolt connections are prone to failure, affecting the stability of the connection.

[0004] In summary, existing technologies connect two fixing plates together using multiple bolts. While this effectively ensures connection stability, it also introduces several problems. First, to guarantee the connection stability between the first and second modules, multiple bolts are necessary, leading to a cumbersome and inefficient installation process. Furthermore, the use of multiple bolts increases installation time, reducing the actual application efficiency of the device. Therefore, improving installation efficiency while maintaining connection strength is a crucial technical problem that needs to be solved. This application proposes a novel plug-in quick-connect structure for modular wind turbine blades to address the aforementioned technical problems, aiming to improve connection efficiency, simplify the installation process, and ultimately enhance the practicality of the device by improving the connection method. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a plug-in quick-connect structure for modular wind turbine blades. This structure involves aligning module one and module two, inserting the fixed cylinder into the support cylinder, and then the operator can move the cone-shaped joint inwards by rotating the adjusting screw. At this time, the cone-shaped joint applies pressure to multiple ball bearings, causing the ball bearings to move the insertion post relative to the fixed cylinder, ultimately inserting the insertion post into the corresponding insertion hole. This process effectively restricts the relative movement between the support cylinder and the fixed cylinder, thereby stabilizing the relative position between module one and module two. This design achieves the initial assembly of module one and module two through simple operating steps, followed by connecting the first connecting block and the second connecting block using a smaller number of bolts. Compared to traditional multi-bolt connections, this invention improves installation efficiency and greatly enhances the convenience of the device and the efficiency of connecting modules by reducing the number of bolts and employing a simpler operating method.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A plug-in quick-connect structure for modular wind turbine blades is used in the connection of modular wind turbine blades.

[0008] The modular wind turbine blade's plug-in quick-connect structure specifically includes:

[0009] Module 1 and Module 2, wherein a first connecting block is fixedly connected to the inner wall of Module 1 and a second connecting block is fixedly connected to the inner wall of Module 2, the first connecting block and the second connecting block are detachably connected by multiple bolts, baffles are respectively snapped onto the front and rear sides of Module 1 and Module 2, and the two baffles are detachably connected by connecting screws, and a connecting mechanism is provided inside Module 1;

[0010] The connecting mechanism includes a support cylinder, a fixed plate, a moving component, a plugging component, and a pressing component. The inner wall of module one is fixedly connected to the support cylinder, and the inner wall of module two is fixedly connected to the fixed plate.

[0011] As a preferred embodiment of the plug-in quick connection structure for modular wind turbine blades provided by this utility model, the movable component includes a vertical plate, the inner wall of the support cylinder is fixedly connected to the vertical plate, the inner wall of the vertical plate is threadedly connected to an adjusting screw, one end of the adjusting screw is rotatably connected to a movable plate, and the outer wall of the movable plate is fixedly connected to two limiting rods, both of which are slidably connected to the inner wall of the vertical plate.

[0012] As a preferred embodiment of the plug-in quick connection structure for modular wind turbine blades provided by this utility model, the plug-in assembly includes a fixed cylinder. The fixed cylinder is fixedly connected to the side of the fixed plate near the support cylinder. Multiple plugs are slidably connected to the inner wall of the fixed cylinder. Each of the multiple plugs is fixedly connected to a sliding rod on the side near the central axis of the fixed cylinder. The sliding rod is slidably connected to the inner wall of the fixed cylinder. A fixing ring is fixedly connected to the outside of each of the multiple sliding rods. A spring is sleeved on the outside of the sliding rod. The two ends of the spring are respectively fixedly connected to the outer walls of the fixed cylinder and the fixing ring.

[0013] As a preferred embodiment of the plug-in quick connection structure for modular wind turbine blades provided by this utility model, the extrusion assembly includes a cone, the cone is fixedly connected to the side of the moving plate near the fixed plate, and a ball is rotatably connected to the inner wall of the sliding rod, with the ball rotatably connected to the outer wall of the cone.

[0014] As a preferred embodiment of the plug-in quick connection structure for modular wind turbine blades provided by this utility model, sealing rings are fixedly connected to the sides of the two baffles that are close to each other, and the sealing rings are tightly attached to the outer walls of module one and module two.

[0015] As a preferred embodiment of the plug-in quick connection structure for modular wind turbine blades provided by this utility model, a sealing strip is snapped between module one and module two.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The modular wind turbine blade plug-in quick-connect structure provided by this utility model aligns module one and module two. The fixed cylinder is then inserted into the support cylinder. The operator can rotate the adjusting screw to move the cone into the fixed cylinder, thereby compressing multiple ball bearings. This causes the corresponding inserts of the ball bearings to move relative to the fixed cylinder and eventually insert into their corresponding holes. This restricts the movement between the support cylinder and the fixed cylinder, and consequently, restricts the movement between module one and module two. Module one and module two are initially assembled through this simple operation. Then, the first connecting block and the second connecting block are connected using relatively few bolts. This simpler installation method replaces the use of bolts to connect module one and module two, improving the ease of operation and thus increasing the efficiency of connecting module one and module two.

[0018] The modular wind turbine blade plug-in quick connection structure provided by this utility model can initially stabilize the installation of module one and module two through the connection mechanism, thereby making the position between module one and module two relatively stable. This facilitates the subsequent connection of module one and module two by bolts passing through the first connecting block, support cylinder, fixing plate and second connecting block, thus improving the practicality of the device.

[0019] The modular wind turbine blade connection structure provided by this utility model seals the connection between module one and module two with two sealing strips, and seals the connection between the two baffles and module one and module two with two sealing rings. This reduces the entry of moisture or pollutants into the connection area between module one and module two, helps to reduce corrosion, wear and other problems, and ensures the long-term stability of the structure after installation. Attached Figure Description

[0020] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments 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.

[0021] Figure 1 A schematic diagram of the overall structure of the plug-in quick-connect structure for modular wind turbine blades provided by this utility model;

[0022] Figure 2 A schematic diagram of the internal structure of some modules one and two of the modular wind turbine blade plug-in quick connection structure provided by this utility model.

[0023] Figure 3 An exploded view of part of the plug-in quick-connect structure for modular wind turbine blades provided by this utility model.

[0024] Figure 4 A schematic diagram of the internal structure of the support cylinder for the plug-in quick-connect structure of the modular wind turbine blade provided by this utility model;

[0025] Figure 5 A schematic diagram of the internal structure of the support cylinder and the fixing cylinder of the plug-in quick connection structure for the modular wind turbine blade provided by this utility model.

[0026] Figure 6 The modular wind turbine blade plug-in quick-connect structure provided by this utility model Figure 5 A magnified view of A in the middle.

[0027] The markings in the diagram are explained as follows:

[0028] 1. Module 1; 2. Module 2; 3. First connecting block; 4. Second connecting block; 5. Bolt; 6. Baffle; 7. Connecting screw; 8. Sealing ring; 9. Sealing strip; 10. Connecting mechanism; 11. Support cylinder; 12. Fixing plate; 13. Vertical plate; 14. Adjusting screw; 15. Moving plate; 16. Limiting rod; 17. Conical frustum; 18. Fixing cylinder; 19. Insert post; 20. Sliding rod; 21. Fixing ring; 22. Spring; 23. Ball bearing; 24. Insertion hole. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 should fall within the protection scope of the present invention.

[0030] As described in the background art, the above-mentioned device requires multiple bolts to connect the two fixing plates in order to ensure the stability of the connection between the first module and the second module. The multiple bolts result in low efficiency for the operator in installing the first module and the second module, reducing the practicality of the device.

[0031] To solve this technical problem, this utility model provides a plug-in quick connection structure for modular wind turbine blades, which is applied to the connection of wind turbine blades.

[0032] For details, please refer to Figures 1-3 The modular wind turbine blade plug-in quick-connect structure specifically includes:

[0033] Module 1 and Module 2 are provided. The inner wall of Module 1 is fixedly connected to a first connecting block 3, and the inner wall of Module 2 is fixedly connected to a second connecting block 4. The first connecting block 3 and the second connecting block 4 are detachably connected by multiple bolts 5. The front and rear sides of Module 1 and Module 2 are respectively snapped with baffles 6. The two baffles 6 are detachably connected by connecting screws 7. A connecting mechanism 10 is provided inside Module 1.

[0034] The connecting mechanism 10 includes a support cylinder 11, a fixing plate 12, a moving component, a plugging component, and a pressing component. The support cylinder 11 is fixedly connected to the inner wall of module 1, and the fixing plate 12 is fixedly connected to the inner wall of module 2.

[0035] The modular wind turbine blade plug-in quick connection structure provided by this utility model aligns module 1 and module 2. The fixing cylinder 18 is then inserted into the support cylinder 11. The operator can rotate the adjusting screw 14 to move the cone 17 into the fixing cylinder 18, thereby pressing multiple balls 23. This causes the corresponding insertion pins 19 of the balls 23 to move relative to the fixing cylinder 18 and eventually insert into the corresponding insertion holes 24. This restricts the mutual movement between the support cylinder 11 and the fixing cylinder 18, and consequently restricts the mutual movement between module 1 and module 2. Through simple operation, module 1 and module 2 are initially spliced. Then, a relatively small number of bolts 5 are used to connect the first connecting block 3 and the second connecting block 4. In other words, a small number of bolts 5 are used to connect module 1 and module 2. This simpler installation method replaces some screws for connecting module 1 and module 2, improving the ease of operation and thus increasing the efficiency of connecting module 1 and module 2.

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Example 1

[0037] Please refer to Figures 1-6 A modular wind turbine blade plug-in quick-connect structure, comprising:

[0038] Module 1 and Module 2 are provided. The inner wall of Module 1 is fixedly connected to a first connecting block 3, and the inner wall of Module 2 is fixedly connected to a second connecting block 4. The first connecting block 3 and the second connecting block 4 are detachably connected by multiple bolts 5. The front and rear sides of Module 1 and Module 2 are respectively snapped with baffles 6. The two baffles 6 are detachably connected by connecting screws 7. A connecting mechanism 10 is provided inside Module 1.

[0039] The connecting mechanism 10 includes a support cylinder 11, a fixing plate 12, a moving component, a plugging component, and a pressing component. The support cylinder 11 is fixedly connected to the inner wall of module 1, and the fixing plate 12 is fixedly connected to the inner wall of module 2. The connecting mechanism 10 is used to perform preliminary splicing of module 1 and module 2.

[0040] The movable component includes a vertical plate 13, which is fixedly connected to the inner wall of the support cylinder 11. An adjusting screw 14 is threadedly connected to the inner wall of the vertical plate 13. A movable plate 15 is rotatably connected to one end of the adjusting screw 14. Two limiting rods 16 are fixedly connected to the outer wall of the movable plate 15. Both limiting rods 16 are slidably connected to the inner wall of the vertical plate 13. The movable mechanism can control the position of the movable plate 15 inside the support cylinder 11. When module 1 and module 2 are spliced ​​together, the support cylinder 11 is inserted into the fixed plate 12. At this time, the central axes of the support cylinder 11, the fixed plate 12, the adjusting screw 14 and the movable plate 15 are collinear.

[0041] The plug-in assembly includes a fixed cylinder 18. The fixed cylinder 18 is fixedly connected to the side of the fixed plate 12 near the support cylinder 11. Multiple insertion posts 19 are slidably connected to the inner wall of the fixed cylinder 18. Each insertion post 19 is fixedly connected to a sliding rod 20 near the central axis of the fixed cylinder 18. The sliding rod 20 is slidably connected to the inner wall of the fixed cylinder 18. Each sliding rod 20 is fixedly connected to a fixing ring 21. A spring 22 is sleeved on the outside of the sliding rod 20. The two ends of the spring 22 are fixedly connected to the outer walls of the fixed cylinder 18 and the fixing ring 21, respectively. The plug-in assembly can restrict the mutual movement between the support cylinder 11 and the fixed plate 12, and thus restrict the relative movement between module 1 and module 2, providing positioning and support for the subsequent installation of bolts 5.

[0042] The extrusion assembly includes a cone 17. The cone 17 is fixedly connected to the side of the moving plate 15 near the fixed plate 12. The inner wall of the sliding rod 20 is rolled with a ball 23. The ball 23 is rolled on the outer wall of the cone 17. The extrusion assembly allows the insertion post 19 to be inserted into or out of the insertion hole 24. The center lines of the cone 17 and the moving plate 15 are collinear.

[0043] Through the above structural design, when splicing Module 1 and Module 2, Module 1 is inserted into Module 2. At this time, the two sealing strips 9 are respectively located between the upper and lower parts of the two Modules 1. The fixed cylinder 18 is inserted into the support cylinder 11. The operator can rotate the adjusting screw 14, which causes the moving plate 15 to move under the restriction of the limiting rod 16 and the upright plate 13. This causes the cone 17 to move into the fixed cylinder 18, and the cone 17 to squeeze the multiple balls 23, so that the multiple sliding rods 20 corresponding to the balls 23 slide relative to the fixed cylinder 18, causing the insertion post 19 to slide relative to the fixed cylinder 18 and finally insert into the corresponding insertion hole 24. This restricts the mutual movement between the support cylinder 11 and the fixed cylinder 18, thereby enabling... The movement between Module 1 and Module 2 is restricted. Module 1 and Module 2 are initially assembled through simple operation. Then, the first connecting block 3 and the second connecting block 4 are connected by a relatively small number of bolts 5. The bolts 5 are passed through the first connecting block 3, the support cylinder 11, the fixing plate 12, and the second connecting block 4 in sequence, and finally fixed by the nut. If it is necessary to separate Module 1 and Module 2, simply remove the bolts 5 first, and then rotate the adjusting screw 14 in the opposite direction to make the cone 17 slide outward from the support cylinder 11, which will gradually release the pressure on the ball 23. Then, under the action of the spring force of the spring 22, the insertion post 19 will leave the corresponding insertion hole 24, thus releasing the restriction between Module 1 and Module 2. Example 2

[0044] The plug-in quick-connect structure of the modular wind turbine blades provided in Example 1 is further optimized, specifically, as follows: Figures 1-3 As shown, sealing rings 8 are fixedly connected to the sides of the two baffles 6 that are close to each other. The sealing rings 8 are tightly attached to the outer walls of module 1 and module 2. After the baffles 6 are installed on module 1 and module 2, the corresponding sealing rings 8 will undergo a certain deformation.

[0045] A sealing strip 9 is snapped between Module 1 and Module 2.

[0046] With the above structural design, the two baffles 6 are respectively locked in the groove formed by the combination of module 1 and module 2. Then, the connecting screws 7 are screwed into the two baffles 6 one by one to limit the distance between the two baffles 6. Then, the two baffles 6 are installed on module 1 and module 2.

Claims

1. A plug-in quick-connect structure for modular wind turbine blades, comprising module one (1) and module two (2), characterized in that: The inner wall of module one (1) is fixedly connected to a first connecting block (3), and the inner wall of module two (2) is fixedly connected to a second connecting block (4). The first connecting block (3) and the second connecting block (4) are detachably connected by multiple bolts (5). The front and rear sides of module one (1) and module two (2) are respectively snapped with baffles (6). The two baffles (6) are detachably connected by connecting screws (7). A connecting mechanism (10) is provided inside module one (1). The connecting mechanism (10) includes a support cylinder (11), a fixing plate (12), a moving component, a plugging component, and a pressing component. The inner wall of module one (1) is fixedly connected to the support cylinder (11), and the inner wall of module two (2) is fixedly connected to the fixing plate (12). The movable component includes a vertical plate (13), the inner wall of the support cylinder (11) is fixedly connected to the vertical plate (13), the inner wall of the vertical plate (13) is threadedly connected to an adjusting screw (14), one end of the adjusting screw (14) is rotatably connected to a movable plate (15), the outer wall of the movable plate (15) is fixedly connected to two limiting rods (16), and both limiting rods (16) are slidably connected to the inner wall of the vertical plate (13); The plug-in assembly includes a fixed cylinder (18), and the fixed plate (12) is fixedly connected to the fixed cylinder (18) on the side near the support cylinder (11). A plurality of plugs (19) are slidably connected to the inner wall of the fixed cylinder (18). A sliding rod (20) is fixedly connected to the side of the plurality of plugs (19) near the central axis of the fixed cylinder (18). The sliding rod (20) is slidably connected to the inner wall of the fixed cylinder (18). A fixing ring (21) is fixedly connected to the outside of the plurality of sliding rods (20). A spring (22) is sleeved on the outside of the sliding rod (20). The two ends of the spring (22) are fixedly connected to the outer walls of the fixed cylinder (18) and the fixing ring (21) respectively. The extrusion assembly includes a cone (17), and the cone (17) is fixedly connected to the side of the moving plate (15) near the fixed plate (12). A ball (23) is tumbledly connected to the inner wall of the sliding rod (20), and the ball (23) is tumbledly connected to the outer wall of the cone (17).

2. The plug-in quick-connect structure for modular wind turbine blades according to claim 1, characterized in that, The two baffles (6) are respectively fixedly connected to the side of each other with a sealing ring (8), and the sealing ring (8) is tightly attached to the outer wall of module one (1) and module two (2).

3. The plug-in quick-connect structure for modular wind turbine blades according to claim 1, characterized in that, A sealing strip (9) is snapped between module one (1) and module two (2).

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