Rear edge structure of wind power blade

Abstract

The utility model discloses a trailing edge structure of a wind power blade, which comprises a main body blade, the inner wall of the main body blade is provided with a mounting groove, the inner wall of the mounting groove is provided with a support assembly, the support assembly comprises a first mounting plate, the first mounting plate is fixedly connected to the inner wall of the mounting groove, and the first mounting plate is fixedly connected to the inner wall of the mounting groove. A second mounting plate is fixedly connected to the inner wall of the mounting groove, a threaded column is rotatably connected to the inner wall of the second mounting plate, and a threaded block, the threaded column, a rotating column, a pushing plate, a movable column, a connecting block, a supporting plate, a limiting plate, a second long-strip-shaped hole and the like are used in cooperation, so that the threaded block can move when the threaded column rotates; when the threaded block moves, the two supporting plates can be supported through the two pushing plates, so that the upper face and the lower face of the inner wall of the main body blade are supported, the cross section area of the main body blade is increased, and then the situation that the weight of the main body blade is affected by a traditional layering or filling mode is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind turbine blades, and in particular relates to a trailing edge structure of a wind turbine blade. Background Art

[0002] The trailing edge structure of wind turbine blades is an important component of wind turbine blades, and its design and manufacturing technology have an important impact on the performance and service life of the blades.

[0003] In the existing technology, the trailing edge of a wind turbine blade is mainly composed of a pressure surface and a suction surface directly spliced together. As the length of the blade increases, in order to enhance the stiffness in the radial direction of the blade, the cross-sectional area of the blade needs to be increased. The traditional method is to increase the thickness of the material layer at the trailing edge of the blade to achieve this. However, this method has many defects, such as the large amount of material required, the need for a large amount of glue coating, increased blade weight, poor vacuum infusion quality, low processability and poor effect. Therefore, increasing the cross-sectional area and stiffness of the blade without increasing the thickness of the material layer has become the main difficulty in the current technological development. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0005] A trailing edge structure of a wind turbine blade comprises a main blade, wherein an inner wall of the main blade is provided with a mounting groove, and an inner wall of the mounting groove is provided with a support assembly;

[0006] The support assembly includes a first mounting plate, the first mounting plate is fixedly connected to the inner wall of the mounting groove, the inner wall of the mounting groove is fixedly connected to the second mounting plate, the inner wall of the second mounting plate is rotatably connected to a threaded column, the surface of the threaded column is rotatably connected to the inner wall of the first mounting plate, the surface of the first mounting plate is threadedly connected to a threaded block, the top and bottom surfaces of the threaded block are rotatably connected to a rotating column, the surface of the rotating column is rotatably connected to a pushing plate, the inner wall of the pushing plate is rotatably connected to a movable column, the surface of the movable column is fixedly connected to a connecting block, the surface of the connecting block is fixedly connected to the support plate, and the side wall of the second mounting plate is provided with a driving mechanism.

[0007] Preferably, the driving mechanism includes a motor, which is fixedly connected to the side wall of the second mounting plate, and the driving shaft of the motor is rotatably connected to the inner wall of the second mounting plate. The surface of the driving shaft of the second mounting plate and the surface of the threaded column are both fixedly connected with synchronous wheels, and the surfaces of the two synchronous wheels are provided with belts.

[0008] Preferably, the side walls of the second mounting plate are fixedly connected to two limiting plates, the side walls of the two limiting plates are fixedly connected to the side walls of the first mounting plate, and the threaded block is slidably connected to the inner wall of the limiting plate.

[0009] Preferably, two first mounting holes are provided on the surface of the second mounting plate, two second mounting holes are provided on both sides of the first mounting plate, and the size of the first mounting holes matches the size of the second mounting holes.

[0010] Preferably, two first elongated holes are provided on the top surface of the support plate, and the sizes of the two first elongated holes match each other, and a second elongated hole is provided on the side wall of the push plate.

[0011] Preferably, a mounting end is fixedly connected to the side wall of the main leaf, and a plurality of fixing holes are provided at the right end of the mounting end.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model cooperates with each other through the provided threaded block, threaded column, rotating column, pushing plate, movable column, connecting block, support plate, limiting plate and second long strip hole, so that when the threaded column rotates, the threaded block can move. When the threaded block moves, the two supporting plates can be supported by the two pushing plates, thereby supporting the upper and lower surfaces of the inner wall of the main leaf, thereby increasing the cross-sectional area of the main leaf, and avoiding the influence of traditional laying or filling methods on the weight of the main leaf.

[0014] The utility model cooperates with each other through the support plate, synchronous wheel, second mounting plate, threaded column and belt, so that the driving shaft of the support plate can drive the threaded column to rotate through the synchronous wheel and belt, thereby facilitating the staff to adjust the supporting height of the two support plates at any time according to needs, thereby improving the flexibility and practicality of the overall installation.

[0015] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the attached figure:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the second mounting plate of the present invention;

[0020] Figure 4This is a schematic diagram of the support plate structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the enlarged structure of point A in 4;

[0022] Figure 6 This is a schematic diagram of the enlarged structure at point B in Figure 4.

[0023] In the figure: 1. Main leaf; 2. Mounting groove; 3. First mounting plate; 4. Second mounting plate; 5. Threaded column; 6. Threaded block; 7. Rotating column; 8. Push plate; 9. Movable column; 10. Connecting block; 11. Support plate; 12. Synchronous wheel; 13. Belt; 14. First mounting hole; 15. Second mounting hole; 16. First long hole; 17. Second long hole; 18. Mounting end; 19. Fixing hole; 20. Limit plate; 21. Motor. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0025] like Figures 1 to 6 As shown, a trailing edge structure of a wind turbine blade includes a main blade 1, an inner wall of the main blade 1 is provided with a mounting groove 2, the inner wall of the mounting groove 2 is provided with a support assembly, the support assembly includes a first mounting plate 3, the first mounting plate 3 is fixedly connected to the inner wall of the mounting groove 2, the inner wall of the mounting groove 2 is fixedly connected to the second mounting plate 4, the inner wall of the second mounting plate 4 is rotatably connected to a threaded column 5, the surface of the threaded column 5 is rotatably connected to the inner wall of the first mounting plate 3, the surface of the first mounting plate 3 is threadedly connected to a threaded block 6, the top and bottom surfaces of the threaded block 6 are rotatably connected to a rotating column 7, the surface of the rotating column 7 is rotatably connected to a push plate 8, the inner wall of the push plate 8 is rotatably connected to a movable column 9, the surface of the movable column 9 is fixedly connected to a connecting block 10, the surface of the connecting block 10 is fixedly connected to a support plate 11, and the side wall of the second mounting plate 4 is provided with a driving mechanism.

[0026] Furthermore, the driving mechanism includes a motor 21, which is fixedly connected to the side wall of the second mounting plate 4. The driving shaft of the motor 21 is rotatably connected to the inner wall of the second mounting plate 4. The surface of the driving shaft of the second mounting plate 4 and the surface of the threaded column 5 are fixedly connected with a synchronous wheel 12. The surfaces of the two synchronous wheels 12 are provided with a belt 13. The motor 21, synchronous wheel 12 and belt 13 are used in conjunction with each other to facilitate the control of the rotation of the threaded column 5.

[0027] Furthermore, the side walls of the second mounting plate 4 are fixedly connected to two limit plates 20, and the side walls of the two limit plates 20 are fixedly connected to the side walls of the first mounting plate 3. The threaded block 6 is slidably connected to the inner wall of the limit plate 20. Through the setting of the limit plate 20, the threaded column 5 can be rotated to drive the threaded block 6 to move.

[0028] Furthermore, two first mounting holes 14 are provided on the surface of the second mounting plate 4, and two second mounting holes 15 are provided on both sides of the first mounting plate 3. The size of the first mounting hole 14 matches the size of the second mounting hole 15. By setting the first mounting hole 14 and the second mounting hole 15, it is convenient to fix the second mounting plate 4 to the first mounting plate 3.

[0029] Furthermore, two first long holes 16 are provided on the top surface of the support plate 11, and the sizes of the two first long holes 16 match each other. A second long hole 17 is provided on the side wall of the push plate 8. The provision of the first long holes 16 and the second long holes 17 makes it easier to reduce the weight of the support plate 11 and the push plate 8.

[0030] Furthermore, a mounting end 18 is fixedly connected to the side wall of the main leaf 1 , and a plurality of fixing holes 19 are provided at the right end of the mounting end 18 . The fixing holes 19 facilitate fixing the mounting end 18 .

[0031] Working principle: Through the second mounting plate 4, the driving shaft of the support plate 11 rotates through the synchronous wheel 12 and the belt 13 to drive the threaded column 5 to rotate. The threaded column 5 rotates through the limit of the limit plate 20 to make the threaded block 6 move. When the threaded block 6 moves, the support plate 11 can be pushed to open or retract through the mutual cooperation of the rotating column 7, the pushing plate 8, the movable column 9 and the connecting block 10, so as to facilitate the support of the upper and lower surfaces of the inner wall of the main leaf 1, thereby increasing the cross-sectional area of the main leaf 1, and thus avoiding the use of traditional laying or filling methods to affect the weight of the main leaf 1.

Claims

1. A trailing edge structure of a wind turbine blade, comprising a main blade (1), characterized in that: The inner wall of the main leaf (1) is provided with a mounting groove (2), and the inner wall of the mounting groove (2) is provided with a support assembly; The support assembly comprises a first mounting plate (3), the first mounting plate (3) being fixedly connected to the inner wall of the mounting groove (2), the inner wall of the mounting groove (2) being fixedly connected to a second mounting plate (4), the inner wall of the second mounting plate (4) being rotatably connected to a threaded column (5), the surface of the threaded column (5) being rotatably connected to the inner wall of the first mounting plate (3), the surface of the first mounting plate (3) being threadedly connected to a threaded block (6), the top and bottom surfaces of the threaded block (6) being rotatably connected to a rotating column (7), the surface of the rotating column (7) being rotatably connected to a push plate (8), the inner wall of the push plate (8) being rotatably connected to a movable column (9), the surface of the movable column (9) being fixedly connected to a connecting block (10), the surface of the connecting block (10) being fixedly connected to a support plate (11), and the side wall of the second mounting plate (4) being provided with a driving mechanism.

2. The trailing edge structure of a wind turbine blade according to claim 1, characterized in that: The driving mechanism comprises a motor (21), the motor (21) being fixedly connected to the side wall of the second mounting plate (4), the driving shaft of the motor (21) being rotatably connected to the inner wall of the second mounting plate (4), the surface of the driving shaft of the second mounting plate (4) and the surface of the threaded column (5) being fixedly connected with synchronous wheels (12), and the surfaces of the two synchronous wheels (12) being sleeved with belts (13).

3. The trailing edge structure of a wind turbine blade according to claim 1, characterized in that: The side walls of the second mounting plate (4) are fixedly connected to two limiting plates (20), the side walls of the two limiting plates (20) are fixedly connected to the side walls of the first mounting plate (3), and the threaded block (6) is slidably connected to the inner walls of the limiting plates (20).

4. The trailing edge structure of a wind turbine blade according to claim 1, characterized in that: Two first mounting holes (14) are provided on the surface of the second mounting plate (4), and two second mounting holes (15) are provided on both sides of the first mounting plate (3), and the size of the first mounting holes (14) matches the size of the second mounting holes (15).

5. The trailing edge structure of a wind turbine blade according to claim 1, characterized in that: The top surface of the support plate (11) is provided with two first elongated holes (16), the sizes of the two first elongated holes (16) are matched, and the side wall of the push plate (8) is provided with a second elongated hole (17).

6. The trailing edge structure of a wind turbine blade according to claim 1, characterized in that: The side wall of the main leaf (1) is fixedly connected with a mounting end (18), and a plurality of fixing holes (19) are provided at the right end of the mounting end (18).

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