Wind power blade core material efficient positioning device

Abstract

The utility model relates to a kind of wind power blade core material high-efficiency positioning device, it includes base, L type truss being horizontally slidably set on base and adjusting frame being horizontally slidably installed on truss, the truss includes vertical beam and crossbeam, vertically arranged lifting rod is slidably arranged on the adjusting frame, the lower end of the lifting rod is horizontally provided with mounting rod, positioning plate is arranged between the mounting rod and vertical beam, multiple ball-joint are fixed on the side of positioning plate close to mounting rod, second adjusting bolt corresponding to ball-joint is horizontally provided on the mounting rod, the head end of second adjusting bolt is connected with the universal ball head of ball-joint.The wind power blade core material high-efficiency positioning device can be quickly disassembled, chord direction positioning efficiency is high, stability is good, and core material misplacement is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine blade technology, specifically to a high-efficiency positioning device for wind turbine blade core material. Background Technology

[0002] Wind turbine blades are components of wind turbines. The blades are designed in an airfoil shape, and their thickness, twist angle and chord length have a certain distribution pattern from the blade root to the blade tip, giving them a good aerodynamic shape.

[0003] PET core material is used in key components of wind turbine blades, such as the leading edge, trailing edge, and web. Its sandwich structure increases structural rigidity, prevents local instability, and improves the blade's load-bearing capacity. PET core material has excellent mechanical properties, possessing high mechanical strength and performance, meeting the requirements of wind turbine blades under complex operating conditions. Its density is between that of balsa wood and PVC, providing sufficient support strength while reducing blade weight, thus contributing to the development of lightweight and larger blades. Furthermore, PET core material has good high-temperature resistance, adapting to the high-temperature environment of wind turbine blades during operation; it also exhibits strong chemical stability, being resistant to corrosion from external chemicals.

[0004] During installation, the PET core material is placed into a mold for placement, and positioning is achieved by utilizing the constraint and guiding effect of the mold cavity. Currently, there is a lack of efficient and portable tools suitable for production conditions for positioning the tangential position of the core material. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a high-efficiency positioning device for wind turbine blade core materials that can be quickly disassembled, has high chordal positioning efficiency, good stability, and avoids core material misalignment.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows: A high-efficiency positioning device for wind turbine blade core material includes a base, an L-shaped truss that can be horizontally slidably mounted on the base, and an adjustment frame that can be horizontally slidably mounted on the truss. The truss includes a vertical beam and a horizontal beam. A lifting rod is vertically mounted on the adjustment frame that can slide up and down. An installation rod is horizontally mounted at the lower end of the lifting rod. A positioning plate is provided between the installation rod and the vertical beam. Multiple ball joints are fixed on the side of the positioning plate near the installation rod. A second adjusting bolt corresponding to each ball joint is horizontally mounted on the installation rod. The head end of the second adjusting bolt is connected to the universal ball joint.

[0007] In one embodiment of this utility model, a mounting seat is slidably provided on the base along its length direction, and a first adjusting bolt is provided on the base via a mounting plate. The head of the first adjusting bolt is rotatably engaged with the mounting seat. The truss includes vertical beams and horizontal beams, wherein the vertical beams are detachably mounted on the mounting seat, and the sliding direction of the mounting seat relative to the base is parallel to the length direction of the horizontal beams.

[0008] In one embodiment of this utility model, the upper end of the mounting base is provided with an opening, the side of the mounting base is provided with a through first positioning hole, the lower end of the vertical beam is provided with a second positioning hole corresponding to the first positioning hole, and the vertical beam and the mounting base are connected together by positioning pins inserted into the first positioning hole and the second positioning hole.

[0009] In one embodiment of this utility model, the mounting base is U-shaped, including a horizontal plate and two vertical plates. The two vertical plates are provided with corresponding first positioning holes, and the lower end of the vertical beam is provided with a second positioning hole corresponding to the first positioning hole. A connecting rod is symmetrically arranged on the outer side of a set of opposite surfaces at the lower end of the vertical beam. The axis of the connecting rod is perpendicular to the axis of the second positioning hole. A limiting plate is fixed to the outer end of the connecting rod, and the distance between the inner walls of the two limiting plates is adapted to the width of the vertical plate in the mounting base.

[0010] In one embodiment of this utility model, the mounting base is a square shell with an open top, and the lower end of the vertical beam is square, which is adapted to the inner diameter of the square shell.

[0011] In one embodiment of this utility model, the top of the base is provided with a plurality of sliding grooves along the length direction, and the bottom of the mounting base is provided with a slider that matches the sliding grooves, the slider being engaged in the sliding grooves.

[0012] In one embodiment of this utility model, the adjusting frame has a first adjusting hole corresponding to the crossbeam along the horizontal direction, and a second adjusting hole corresponding to the lifting rod along the vertical direction. The first adjusting hole and the second adjusting hole are staggered, and fastening bolts are provided on the side walls of the first adjusting hole and the second adjusting hole on the adjusting frame.

[0013] In one embodiment of this utility model, the positioning plate and the mounting rod are arranged parallel to each other, and the positioning plate is provided with two ball joints located at both ends of the positioning plate; the lower end of the lifting rod is connected to the middle of the mounting rod, and the second adjusting bolt is arranged perpendicular to the mounting rod.

[0014] In one embodiment of this utility model, foam is fixedly provided on the outer side of the positioning plate; the thickness of the positioning plate is 2mm-4mm, and the thickness of the foam is 8mm-12mm.

[0015] In one embodiment of this utility model, the base is mounted on a fixed support arm, which is fixed to the outside of the wind turbine blade mold.

[0016] The beneficial effects of adopting the above technical solution are as follows: In the high-efficiency positioning device for wind turbine blade core material provided by this utility model, the truss is detachably mounted on the mounting base via positioning pins, enabling quick disassembly. A first adjusting bolt drives the mounting base to move the positioning plate on the truss chordally, and the chordal position of the positioning plate can also be adjusted via an adjusting bracket and a second adjusting bolt. When the operator is inside the mold cavity, the chordal position of the positioning plate can be adjusted by adjusting the position of the adjusting bracket on the crossbeam in conjunction with the second adjusting bolt, achieving a tight conformal fit between the positioning plate and the PET core material surface, thus realizing the chordal positioning of the PET core material on the main mold. When the mold cavity angle is too large, preventing operation from inside the mold cavity, the operator can achieve a tight conformal fit between the positioning plate and the PET core material surface from outside the mold cavity via the first adjusting bolt, thus realizing the chordal positioning of the PET core material on the main mold. This device realizes the function of adjusting the positioning plate for chordal positioning both inside and outside the mold cavity. The lifting rod can move the positioning plate up and down, enabling switching between various blade types.

[0017] Since the inner wall of the wind turbine blade mold is an arc-shaped surface, the positioning plate is connected to the second adjusting bolt through a ball joint. When positioning the core material through the positioning plate, it can adapt to the positioning of the core material at various positions and angles within the mold cavity. After positioning the core material through the positioning plate, the chordal positioning efficiency is high and the stability is good. This can avoid the slippage problem during the laying of PET core material and the displacement during vacuum, thus preventing misalignment of the PET core material. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.

[0020] Figure 3 This is a structural schematic diagram of the base, mounting seat, and first adjusting bolt in this utility model.

[0021] Figure 4 This is a schematic diagram of the base, mounting seat, and first adjusting bolt from another angle in this utility model.

[0022] Figure 5 This is a structural schematic diagram of the truss, positioning plate, and second adjusting bolt in this utility model.

[0023] Figure 6This is a schematic diagram of the truss, positioning plate, and second adjusting bolt from another angle in this utility model.

[0024] The components are as follows: 1. Fixed support arm, 2. Base, 3. Slide groove, 4. Mounting seat, 5. Chamfer, 6. First positioning hole, 7. Slider, 8. Rotary seat, 9. Mounting plate, 10. First nut, 11. First adjusting bolt, 12. Positioning pin, 13. Vertical beam, 14. Second positioning hole, 15. Connecting rod, 16. Limiting plate, 17. Crossbeam, 18. Adjusting frame, 19. First adjusting hole, 20. Second adjusting hole, 21. Second nut, 22. Fastening bolt, 23. Lifting rod, 24. Mounting rod, 25. Third nut, 26. Second adjusting bolt, 27. Handle, 28. Ball joint, 29. Positioning plate, 30. Foam. Detailed Implementation

[0025] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be clearly and completely described below in conjunction with specific embodiments.

[0026] like Figure 1 and Figure 2 The device shown is a high-efficiency positioning device for wind turbine blade core material, which includes a base 2, an L-shaped truss that can be horizontally slidably mounted on the base 2, and an adjustment frame 18 that can be horizontally slidably mounted on the truss. The truss includes a vertical beam 13 and a horizontal beam 17. A lifting rod 23 is vertically mounted on the adjustment frame 18 that can slide up and down. An installation rod 24 is horizontally mounted at the lower end of the lifting rod 23. A positioning plate 29 is provided between the installation rod 24 and the vertical beam 13. A plurality of ball joints 28 are fixedly mounted on the side of the positioning plate 29 near the installation rod 24. The universal ball seat in the ball joint 28 is fixedly connected to the positioning plate 29. A second adjusting bolt 26 corresponding to the ball joint 28 is horizontally mounted on the installation rod 24. The head end of the second adjusting bolt 26 is connected to the universal ball head of the ball joint 28.

[0027] like Figure 3 and Figure 4 As shown, a mounting seat 4 is slidably mounted on the base 2 along its length. A first adjusting bolt 11 is mounted on the base 2 via a mounting plate 9. The head of the first adjusting bolt 11 is rotatably engaged with the mounting seat 4, meaning that the mounting seat 4 can slide back and forth along the base 2 by adjusting the position of the first adjusting bolt 11. Specifically, a cylindrical locking block is provided at the head of the first adjusting bolt 11, and a rotating seat 8 is provided on the side wall of the mounting seat 4. The rotating seat 8 has a cylindrical locking groove corresponding to the locking block, and the locking block is rotatably engaged in the locking groove. The truss includes a vertical beam 13 and a horizontal beam 17, wherein the vertical beam 13 is detachably mounted on the mounting seat 4, and the sliding direction of the mounting seat 4 relative to the base 2 is parallel to the length direction of the horizontal beam 17.

[0028] In this embodiment, the upper end of the mounting base 4 is provided with an opening, the side of the mounting base 4 is provided with a through first positioning hole 6, the lower end of the vertical beam 13 is provided with a second positioning hole 14 corresponding to the first positioning hole 6, and the vertical beam 13 and the mounting base 4 are connected together by positioning pins 12 inserted in the first positioning hole 6 and the second positioning hole 14.

[0029] Depending on the different forms of the mounting base 4, the connection relationship between the vertical beam 13 and the mounting base 4 varies: In one embodiment, the mounting base 4 is U-shaped, including a horizontal plate and two vertical plates. The two vertical plates are provided with corresponding first positioning holes 6. The lower end of the vertical beam 13 is provided with a second positioning hole 14 corresponding to the first positioning hole 6. A connecting rod 15 is symmetrically arranged on the outer side of a set of opposite surfaces at the lower end of the vertical beam 13. The axis of the connecting rod 15 is perpendicular to the axis of the second positioning hole 14. A limiting plate 16 is fixed at the outer end of the connecting rod 15. The distance between the inner walls of the two limiting plates 16 is adapted to the width of the vertical plate in the mounting base 4. After the vertical beam 13 is inserted into the mounting base 4 and positioned by the positioning pin 12, the limiting plate 16 is perpendicular to the vertical plate of the mounting base 4. The two limiting plates 16 are just in contact with the two ends of the vertical plate of the mounting base 4, preventing the vertical beam 13 from swinging around the positioning pin 12. As a further optimization, a chamfer 5 is provided on the inner side of the upper end of the vertical plate to guide the vertical beam 13 to be smoothly inserted into the mounting base 4.

[0030] In another embodiment, the mounting base 4 is a square shell with an open top, and the lower end of the vertical beam 13 is square, matching the inner diameter of the square shell. As a further optimization, a chamfer 5 is provided on the inner side of the upper end of the shell to guide the vertical beam 13 to be smoothly inserted into the mounting base 4.

[0031] In this embodiment, the top of the base 2 is provided with a plurality of sliding grooves 3 along the length direction, and the bottom of the mounting base 4 is provided with a slider 7 that is adapted to the sliding grooves 3, and the slider 7 is locked in the sliding grooves 3.

[0032] like Figure 5 and Figure 6 As shown, in this embodiment, the adjusting frame 18 has a first adjusting hole 19 corresponding to the crossbeam 17 along the horizontal direction, and a second adjusting hole 20 corresponding to the lifting rod 23 along the vertical direction. The first adjusting hole 19 and the second adjusting hole 20 are staggered. Fastening bolts 22 are provided on the side walls of both the first adjusting hole 19 and the second adjusting hole 20 on the adjusting frame 18. The crossbeam 17, the first adjusting hole 19, the second adjusting hole 20, and the lifting rod 23 are all square to prevent the crossbeam 17 and the lifting rod 23 from rotating relative to the adjusting frame 18.

[0033] The positioning plate 29 is arranged parallel to the mounting rod 24, and the width direction of the positioning plate 29 is arranged along the vertical direction. Two ball joints 28 are provided on the positioning plate 29, and the two ball joints 28 are located at both ends of the positioning plate 29 respectively. The lower end of the lifting rod 23 is connected to the middle of the mounting rod 24, and the second adjusting bolt 26 is arranged perpendicular to the mounting rod 24.

[0034] In this embodiment, first nuts 10 are fixed on both sides of the mounting plate 9, and the mounting plate 9 has through holes or threaded holes corresponding to the first nuts 10. The first adjusting bolt 11 is threadedly connected to the first nuts 10. Third nuts 25 are fixed on both sides of the mounting rod 24, and the mounting rod 24 has through holes or threaded holes corresponding to the third nuts 25. The second adjusting bolt 26 is threadedly connected to the third nuts 25. Second nuts 21 are fixed on the sides of the first adjusting hole 19 and the second adjusting hole 20 on the adjusting frame 18, and the adjusting frame 18 has through holes corresponding to the second nuts 21. The fastening bolt 22 is threadedly connected to the second nuts 21. The fastening bolt 22 is used to fix the crossbeam 17 and the sliding frame 18, as well as the sliding frame 18 and the lifting rod 23. As a further optimization, the tail ends of the first adjusting bolt 11, the second adjusting bolt 26, and the fastening bolt 22 are provided with handles 27 for rotation.

[0035] As a further optimization, foam 30 is fixed to the outer side of the positioning plate 29; the thickness of the positioning plate 29 is 2mm-4mm, and the thickness of the foam 30 is 8mm-12mm. Preferably, the thickness of the positioning plate 29 is 3mm, and the thickness of the foam 30 is 10mm. After the vacuum film is laid on the core material, the foam 30 can protect the vacuum film from damage during positioning.

[0036] Specifically, the base 2 is detachably mounted on the fixed support arm 1, which is fixed to the outside of the wind turbine blade mold. During operation, the positioning plate 29 is located inside the wind turbine blade mold cavity, and the base 2 is located outside the wind turbine blade mold cavity. Operators can adjust and position the positioning plate 29 from both inside and outside the mold cavity.

[0037] In addition, in order to achieve a lightweight positioning device, the fixed support arm 1, base 2, vertical beam 13, horizontal beam 17, lifting rod 23 and mounting rod 24 are all hollow square tubes.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-efficiency positioning device for wind turbine blade core material, characterized in that: It includes a base (2), an L-shaped truss that can be horizontally slidably mounted on the base (2), and an adjustment frame (18) that can be horizontally slidably mounted on the truss. The truss includes a vertical beam (13) and a horizontal beam (17). A lifting rod (23) is vertically mounted on the adjustment frame (18) that can slide up and down. An installation rod (24) is horizontally mounted at the lower end of the lifting rod (23). A positioning plate (29) is provided between the installation rod (24) and the vertical beam (13). Multiple ball joints (28) are fixed on the side of the positioning plate (29) near the installation rod (24). A second adjusting bolt (26) corresponding to the ball joint (28) is horizontally mounted on the installation rod (24). The head end of the second adjusting bolt (26) is connected to the ball joint (28).

2. The high-efficiency positioning device for wind turbine blade core material according to claim 1, characterized in that: The base (2) is provided with a mounting seat (4) that can slide along its length direction. The base (2) is provided with a first adjusting bolt (11) through a mounting plate (9). The head of the first adjusting bolt (11) is rotatably connected to the mounting seat (4). The truss includes a vertical beam (13) and a horizontal beam (17). The vertical beam (13) is detachably mounted on the mounting seat (4). The sliding direction of the mounting seat (4) relative to the base (2) is parallel to the length direction of the horizontal beam (17).

3. The high-efficiency positioning device for wind turbine blade core material according to claim 2, characterized in that: The mounting base (4) has an opening at its upper end, and a through first positioning hole (6) is provided on the side of the mounting base (4). The lower end of the vertical beam (13) is provided with a second positioning hole (14) corresponding to the first positioning hole (6). The vertical beam (13) and the mounting base (4) are connected together by positioning pins (12) inserted in the first positioning hole (6) and the second positioning hole (14).

4. The high-efficiency positioning device for wind turbine blade core material according to claim 3, characterized in that: The mounting base (4) is U-shaped and includes a horizontal plate and two vertical plates. The two vertical plates are provided with corresponding first positioning holes (6). The lower end of the vertical beam (13) is provided with a second positioning hole (14) corresponding to the first positioning hole (6). A connecting rod (15) is symmetrically arranged on the outer side of a set of opposite surfaces at the lower end of the vertical beam (13). The axis of the connecting rod (15) is perpendicular to the axis of the second positioning hole (14). The outer end of the connecting rod (15) is fixed with a limiting plate (16). The distance between the inner walls of the two limiting plates (16) is adapted to the width of the vertical plate in the mounting base (4).

5. The high-efficiency positioning device for wind turbine blade core material according to claim 3, characterized in that: The mounting base (4) is a square shell with an open top, and the lower end of the vertical beam (13) is square, which is adapted to the inner diameter of the square shell.

6. A high-efficiency positioning device for wind turbine blade core material according to any one of claims 2-5, characterized in that: The base (2) has several grooves (3) along its length on the top, and the mounting base (4) has a slider (7) that matches the grooves (3) on the bottom, and the slider (7) is engaged in the grooves (3).

7. The high-efficiency positioning device for wind turbine blade core material according to claim 1, characterized in that: The adjusting frame (18) has a first adjusting hole (19) corresponding to the crossbeam (17) along the horizontal direction, and a second adjusting hole (20) corresponding to the lifting rod (23) along the vertical direction. The first adjusting hole (19) and the second adjusting hole (20) are arranged alternately. The adjusting frame (18) is provided with fastening bolts (22) on the side walls of the first adjusting hole (19) and the second adjusting hole (20).

8. The high-efficiency positioning device for wind turbine blade core material according to claim 1, characterized in that: The positioning plate (29) and the mounting rod (24) are arranged parallel to each other. The positioning plate (29) is provided with two ball joints (28) and the two ball joints (28) are located at both ends of the positioning plate (29). The lower end of the lifting rod (23) is connected to the middle of the mounting rod (24), and the second adjusting bolt (26) is arranged perpendicular to the mounting rod (24).

9. The high-efficiency positioning device for wind turbine blade core material according to claim 1, characterized in that: Foam (30) is fixed on the outside of the positioning plate (29); the thickness of the positioning plate (29) is 2mm-4mm, and the thickness of the foam (30) is 8mm-12mm.

10. The high-efficiency positioning device for wind turbine blade core material according to claim 1, characterized in that: The base (2) is mounted on the fixed support arm (1), which is fixed to the outside of the wind turbine blade mold.

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