PET (Polyethylene Terephthalate) fixing tool for heightening core material at rear edge of wind power blade

Abstract

The invention belongs to the technical field of fixing tools, and discloses a wind power blade rear edge heightening core material PET fixing tool which comprises a first mounting profile, the top of the first mounting profile is fixedly connected with a second mounting profile, and the inner surface of the second mounting profile is movably sleeved with a third mounting profile. The front face of the third installation profile is fixedly connected with a dust cover. By arranging fine thread rods, a C-shaped frame, an L-shaped plate, gears and an inner gear ring, when a handle is rotated, the fine thread rods are driven to start to rotate, then the inner gear ring drives other gears to start to rotate synchronously, at the moment, the four fine thread rods start to rotate synchronously, the L-shaped plate slides horizontally and transversely under the limiting effect of the C-shaped frame, and the clamping effect of the handle is improved. Therefore, synchronous movement of the four pressing plates is guaranteed, continuous and stable attachment between the core material and the mold closing seam is greatly improved, and risks of quality defects such as gaps, rich resin and core material steps are effectively reduced.

Description

Technical Field

[0001] This invention belongs to the field of fixing fixture technology, specifically a fixing fixture for PET core material for raising the trailing edge of wind turbine blades. Background Technology

[0002] Fixtures are specialized auxiliary devices used in product manufacturing or assembly processes to precisely position and reliably clamp workpieces, molds, or components, ensuring they remain in their preset position and orientation throughout the entire processing flow. They achieve rapid clamping and release through mechanical, pneumatic, or hydraulic principles and are key process equipment for ensuring product consistency, improving production efficiency, and enhancing quality stability.

[0003] During the mold-closing process of raising the core material at the trailing edge of wind turbine blades, operators often use manual methods to fix the PET core material to ensure it adheres to the trailing edge of the mold. While the existing manual pushing method has the basic function of pushing the core material, it generally requires multiple operators to work together, resulting in low efficiency, uneven force application, difficulty in controlling precision, and inability to effectively ensure a continuous and stable fit between the core material and the mold seam. This can easily lead to quality defects such as gaps, resin accumulation, and core material steps. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to provide a PET fixing fixture for increasing the trailing edge height of wind turbine blades, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a PET fixing fixture for increasing the trailing edge height of a wind turbine blade, comprising a first mounting profile, a second mounting profile fixedly connected to the top of the first mounting profile, a third mounting profile movably sleeved on the inner surface of the second mounting profile, a dust cover fixedly connected to the front of the third mounting profile, a handle movably sleeved on the inner surface of the front of the dust cover, the other end of the handle penetrating the dust cover and extending into the inner cavity of the dust cover and fixedly connected to a fine-pitch threaded rod, the outer surface of the fine-pitch threaded rod movably sleeved with the inner surface of the third mounting profile, the other end of the fine-pitch threaded rod penetrating the third mounting profile and extending to the outside of a gear and threadedly sleeved with an L-shaped plate, a C-shaped frame fixedly mounted on the inner surface of the third mounting profile, the outer surface of the fine-pitch threaded rod movably sleeved with the inner surface of the C-shaped frame, a gear fixedly sleeved on the outer surface of the fine-pitch threaded rod, and an internal gear ring meshing with the outer surface of the gear.

[0006] Preferably, the inner surface of the second mounting profile is threaded with a locking pin, and the other end of the locking pin passes through the second mounting profile and the third mounting profile in sequence, extends to the outside of the second mounting profile, and is threaded with the inner surface of the third mounting profile.

[0007] Preferably, a fixing frame is fixedly connected to the other end of the L-shaped plate, a rectangular block is fixedly connected to the inner cavity of the fixing frame, a pressure rod is movably sleeved on the inner surface of the left side of the fixing frame, and the other end of the pressure rod passes through the fixing frame and the rectangular block in sequence and extends into the inner cavity of the fixing frame and is fixedly connected to a movable rod.

[0008] Preferably, the top and bottom of the movable rod are both hinged with diagonal rods, and the other end of the diagonal rod is hinged with a pin block.

[0009] Preferably, the outer surface of the pin block is movably connected to the inner surface of the fixing frame, and the outer surface of the pressure plate is movably connected to the outer surface of the fixing frame.

[0010] Preferably, a stainless steel spring is movably sleeved on the outer surface of the pressure rod, with the left end of the stainless steel spring fixedly connected to the right side of the movable rod and the right end of the stainless steel spring fixedly connected to the left side of the rectangular block.

[0011] Preferably, reinforcing ribs are fixedly connected to both the left and right sides of the outer surface of the first mounting profile, and the outer surface of the reinforcing ribs is fixedly connected to the bottom of the second mounting profile.

[0012] Preferably, a mounting bracket is fixedly connected to the top of the second mounting profile, a fixing block is fixedly connected to the top of the mounting bracket, a motor is fixedly connected to the outer surface of the fixing block, a rotating shaft is fixedly sleeved at the other end of the motor output shaft, and a winding roller is fixedly sleeved at the other end of the rotating shaft through the fixing block and extending into the interior of the fixing block.

[0013] Preferably, the outer surface of the winding roller is wound with a pull rope, the other end of the pull rope passes through the mounting frame and is fixedly connected to a connecting plate, the outer surface of the connecting plate is movably connected to the inner surface of the second mounting profile, and the top of the connecting plate is fixedly connected to the bottom of the third mounting profile.

[0014] The beneficial effects of this invention are as follows: 1. This invention, by setting up fine-threaded rods, C-shaped frames, L-shaped plates, gears, and internal gear rings, drives the fine-threaded rods to start rotating when the handle is rotated. This, in turn, drives the other gears to start rotating synchronously through the internal gear ring. At this time, the four fine-threaded rods will start rotating synchronously, causing the L-shaped plate to slide horizontally under the limiting action of the C-shaped frame. This ensures the synchronous movement of the four pressure plates, greatly improving the continuous and stable fit between the core material and the mold seam, and effectively reducing the risk of quality defects such as gaps, resin excess, and core material steps.

[0015] 2. This invention, by setting up a pressure rod, a movable rod, a diagonal rod, a pin block, and a pressure plate, causes the movable rod to slide horizontally to the left under the limiting action of the rectangular block when the pressure rod is pressed. This causes the diagonal rod to move around the hinge point, which in turn causes the pin block to move towards the rectangular block. Once the pin block is completely detached from the inner surface of the pressure plate, the fixing effect on the pressure plate is released, realizing the function of quickly disassembling and replacing the pressure plate. This significantly reduces production line downtime and allows for rapid adaptation to different production needs and wear replacement.

[0016] 3. This invention, by setting up a motor, rotating shaft, winding roller, pull rope, and connecting plate, starts the motor, drives the rotating shaft to rotate the winding roller, and the rotation of the winding roller causes the pull rope to begin winding. At this time, the connecting plate will drive the No. 3 mounting profile to move vertically upward under the limiting action of the No. 2 mounting profile. Then, the No. 3 mounting profile drives the dust cover to move upward synchronously, achieving the purpose of synchronously adjusting the pressing height of the four pressure plates. The mechanical forcing means ensures the uniformity and consistency of the applied force, which directly solves the problems of uneven force, local deformation of core material, or poor adhesion that are difficult to avoid with manual adjustment. This significantly improves the injection quality of the blade trailing edge, structural reliability, and reduces the rework rate. At the same time, it simplifies the complex multi-person collaborative operation into a single-person controllable process, improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure on the back of the present invention; Figure 3 This is a cross-sectional view of the fine-thread rod of the present invention; Figure 4 This is a cross-sectional view of the L-shaped plate of the present invention; Figure 5 This is a cross-sectional view of the gear of the present invention; Figure 6 This is a cross-sectional view of the fixing frame of the present invention; Figure 7 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Mounting profile #1; 2. Mounting profile #2; 3. Mounting profile #3; 4. Dust cover; 5. Handle; 6. Fine thread rod; 7. C-frame; 8. L-shaped plate; 9. Gear; 10. Internal gear ring; 11. Locking pin; 12. Fixing bracket; 13. Pressure rod; 14. Rectangular block; 15. Movable rod; 16. Diagonal rod; 17. Pin block; 18. Pressure plate; 19. Stainless steel spring; 20. Reinforcing rib; 21. Mounting bracket; 22. Fixing block; 23. Motor; 24. Shaft; 25. Winding roller; 26. Pull rope; 27. Connecting plate. Detailed Implementation

[0019] 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.

[0020] like Figures 1 to 7 As shown, the present invention provides a PET fixing fixture for raising the trailing edge of a wind turbine blade, including a first mounting profile 1, a second mounting profile 2 fixedly connected to the top of the first mounting profile 1, a third mounting profile 3 movably sleeved on the inner surface of the second mounting profile 2, a dust cover 4 fixedly connected to the front of the third mounting profile 3, a handle 5 movably sleeved on the inner surface of the front of the dust cover 4, the other end of the handle 5 penetrating through the dust cover 4 and extending into the inner cavity of the dust cover 4 and fixedly connected to a fine thread rod 6, the outer surface of the fine thread rod 6 movably sleeved with the inner surface of the third mounting profile 3, the other end of the fine thread rod 6 penetrating through the third mounting profile 3 and extending to the outside of a gear 9 and threadedly sleeved with an L-shaped plate 8, a C-shaped frame 7 fixedly mounted on the inner surface of the third mounting profile 3, the outer surface of the fine thread rod 6 movably sleeved with the inner surface of the C-shaped frame 7, a gear 9 fixedly sleeved on the outer surface of the fine thread rod 6, and an internal gear ring 10 meshing with the outer surface of the gear 9.

[0021] When the handle 5 is rotated, the fine thread rod 6 will start to rotate, which in turn drives the other gears 9 to start rotating synchronously through the internal gear ring 10. At this time, the four fine thread rods 6 will start to rotate synchronously, so that the L-shaped plate 8 will slide horizontally under the limiting action of the C-shaped frame 7.

[0022] Among them, the inner surface of the second mounting profile 2 is threaded with a locking pin 11, and the other end of the locking pin 11 passes through the second mounting profile 2 and the third mounting profile 3 in sequence and extends to the outside of the second mounting profile 2 and is threaded with the inner surface of the third mounting profile 3.

[0023] Rotating the locking pin 11 will release the fixing of the mounting profile 3 after the locking pin 11 is disengaged from the inner surface of the mounting profile 3.

[0024] The other end of the L-shaped plate 8 is fixedly connected to a fixing frame 12. The inner cavity of the fixing frame 12 is fixedly connected to a rectangular block 14. The inner surface of the left side of the fixing frame 12 is movably sleeved with a pressure rod 13. The other end of the pressure rod 13 passes through the fixing frame 12 and the rectangular block 14 in sequence and extends into the inner cavity of the fixing frame 12 and is fixedly connected to a movable rod 15.

[0025] Pressing the lever 13 will cause the movable lever 15 to slide synchronously under the limiting action of the rectangular block 14.

[0026] The top and bottom of the movable rod 15 are both hinged with diagonal rods 16, and the other end of the diagonal rod 16 is hinged with a pin block 17.

[0027] When the movable rod 15 begins to slide to the left, it will cause the diagonal rod 16 to move around the hinge point.

[0028] The outer surface of the pin block 17 is movably connected to the inner surface of the fixing frame 12, and the outer surface of the pressure plate 18 is movably connected to the outer surface of the fixing frame 12.

[0029] When the pin block 17 disengages from the inner surface of the pressure plate 18, the fixing effect on the pressure plate 18 will be released.

[0030] Among them, a stainless steel spring 19 is movably sleeved on the outer surface of the pressure rod 13. The left end of the stainless steel spring 19 is fixedly connected to the right side of the movable rod 15, and the right end of the stainless steel spring 19 is fixedly connected to the left side of the rectangular block 14.

[0031] Due to the elastic force of the stainless steel spring 19, the movable rod 15 has a good reset function.

[0032] Among them, the left and right sides of the outer surface of the No. 1 mounting profile 1 are fixedly connected with reinforcing ribs 20, and the outer surface of the reinforcing ribs 20 is fixedly connected to the bottom of the No. 2 mounting profile 2.

[0033] The design of the reinforcing rib 20 enhances the connection strength and stability between mounting profile 1 and mounting profile 2.

[0034] Among them, the top of the second mounting profile 2 is fixedly connected to the mounting bracket 21, the top of the mounting bracket 21 is fixedly connected to the fixing block 22, the outer surface of the fixing block 22 is fixedly connected to the motor 23, the other end of the output shaft of the motor 23 is fixedly sleeved with the rotating shaft 24, the other end of the rotating shaft 24 passes through the fixing block 22 and extends into the interior of the fixing block 22 and is fixedly sleeved with the winding roller 25.

[0035] When the motor 23 starts running, it will drive the shaft 24 to rotate the winding roller 25.

[0036] The outer surface of the winding roller 25 is wound with a pull rope 26. The other end of the pull rope 26 passes through the mounting frame 21 and is fixedly connected to a connecting plate 27. The outer surface of the connecting plate 27 is movably connected to the inner surface of the second mounting profile 2, and the top of the connecting plate 27 is fixedly connected to the bottom of the third mounting profile 3.

[0037] When the winding roller 25 rotates, it will wind up the pull rope 26, causing the pull rope 26 to drive the connecting plate 27 and the No. 3 mounting profile 3 to begin to rise under the limiting action of the No. 2 mounting profile 2.

[0038] Working principle and usage process of this invention: First, after positioning and installing the device, the rear edge of the raised core material PET is positioned between the blade and the pressure plate 18. Rotate the handle 5 to drive the fine thread rod 6 to rotate, which in turn drives the remaining gears 9 to rotate synchronously through the internal gear ring 10. This causes the four fine thread rods 6 to operate synchronously, pushing the L-shaped plate 8 to slide horizontally under the limit of the C-shaped frame 7, ensuring that the four pressure plates 18 move synchronously. This significantly improves the bonding stability between the core material and the mold seam, effectively reducing quality risks such as gaps, resin content, and core material steps.

[0039] When the pressure plate 18 is worn or deformed, affecting the pressing effect, pressing the pressure rod 13 will cause the movable rod 15 to slide horizontally to the left under the limit of the rectangular block 14, driving the inclined rod 16 to rotate around the hinge point, causing the pin block 17 to retract towards the rectangular block 14 until it is completely separated from the inner surface of the pressure plate 18, thereby releasing the fixation of the pressure plate 18, realizing quick disassembly and replacement, greatly reducing downtime and adapting to different production and maintenance needs.

[0040] When the height of the pressure plate 18 needs to be adjusted, the motor 23 is started to drive the rotating shaft 24 and the winding roller 25 to rotate. The connecting plate 27 is pulled by the winding rope 26, which drives the No. 3 mounting profile 3 to rise vertically along the limit of the No. 2 mounting profile 2, thereby raising the dust cover 4 synchronously. This achieves synchronous adjustment of the pressing height of the four pressure plates 18, improves the injection quality and structural reliability of the blade trailing edge, and simplifies the complex multi-person operation into a single-person process, thus improving production efficiency.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] 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 fixing fixture for PET core material for raising the trailing edge of a wind turbine blade, comprising a first mounting profile (1), characterized in that: The top of the first mounting profile (1) is fixedly connected to the second mounting profile (2). The inner surface of the second mounting profile (2) is movably fitted with the third mounting profile (3). The front of the third mounting profile (3) is fixedly connected to the dust cover (4). The inner surface of the front of the dust cover (4) is movably fitted with the handle (5). The other end of the handle (5) passes through the dust cover (4) and extends into the inner cavity of the dust cover (4) and is fixedly connected to a fine thread rod (6). The outer surface of the fine thread rod (6) is connected to the third mounting profile (3). The inner surface of the No. 3 mounting profile (3) is movably sleeved, and the other end of the fine thread rod (6) passes through the No. 3 mounting profile (3) and extends to the outside of the gear (9) and is threaded with an L-shaped plate (8). A C-shaped frame (7) is fixedly installed on the inner surface of the No. 3 mounting profile (3). The outer surface of the fine thread rod (6) is movably sleeved with the inner surface of the C-shaped frame (7). A gear (9) is fixedly sleeved on the outer surface of the fine thread rod (6). An internal gear ring (10) is meshed with the outer surface of the gear (9).

2. The PET fixing fixture for increasing the trailing edge height of a wind turbine blade according to claim 1, characterized in that: The inner surface of the second mounting profile (2) is threaded with a locking pin (11). The other end of the locking pin (11) passes through the second mounting profile (2) and the third mounting profile (3) in sequence and extends to the outside of the second mounting profile (2) and is threaded with the inner surface of the third mounting profile (3).

3. The PET fixing fixture for increasing the trailing edge height of a wind turbine blade according to claim 1, characterized in that: The other end of the L-shaped plate (8) is fixedly connected to a fixed frame (12), and a rectangular block (14) is fixedly connected to the inner cavity of the fixed frame (12). A pressure rod (13) is movably sleeved on the inner surface of the left side of the fixed frame (12). The other end of the pressure rod (13) passes through the fixed frame (12) and the rectangular block (14) in sequence and extends to the inner cavity of the fixed frame (12) and is fixedly connected to a movable rod (15).

4. The PET fixing fixture for raising the trailing edge of a wind turbine blade according to claim 3, characterized in that: The top and bottom of the movable rod (15) are both hinged with diagonal rods (16), and the other end of the diagonal rods (16) is hinged with a pin block (17).

5. The PET fixing fixture for raising the trailing edge of a wind turbine blade according to claim 4, characterized in that: The outer surface of the pin block (17) is movably connected to the inner surface of the fixing frame (12), and the outer surface of the pressure plate (18) is movably connected to the outer surface of the fixing frame (12).

6. The PET fixing fixture for raising the trailing edge of a wind turbine blade according to claim 3, characterized in that: A stainless steel spring (19) is movably sleeved on the outer surface of the pressure rod (13). The left end of the stainless steel spring (19) is fixedly connected to the right side of the movable rod (15), and the right end of the stainless steel spring (19) is fixedly connected to the left side of the rectangular block (14).

7. The PET fixing fixture for raising the trailing edge of a wind turbine blade according to claim 1, characterized in that: The first mounting profile (1) has reinforcing ribs (20) fixedly connected to both the left and right sides of its outer surface, and the outer surface of the reinforcing ribs (20) is fixedly connected to the bottom of the second mounting profile (2).

8. The PET fixing fixture for increasing the trailing edge height of a wind turbine blade according to claim 1, characterized in that: The top of the second mounting profile (2) is fixedly connected to a mounting bracket (21), the top of the mounting bracket (21) is fixedly connected to a fixing block (22), the outer surface of the fixing block (22) is fixedly connected to a motor (23), the other end of the output shaft of the motor (23) is fixedly sleeved with a rotating shaft (24), the other end of the rotating shaft (24) passes through the fixing block (22) and extends into the interior of the fixing block (22) and is fixedly sleeved with a winding roller (25).

9. A PET fixing fixture for increasing the trailing edge height of a wind turbine blade according to claim 8, characterized in that: The outer surface of the winding roller (25) is wound with a pull rope (26), the other end of the pull rope (26) passes through the mounting frame (21) and is fixedly connected to a connecting plate (27). The outer surface of the connecting plate (27) is movably connected to the inner surface of the second mounting profile (2), and the top of the connecting plate (27) is fixedly connected to the bottom of the third mounting profile (3).

Images