Flexible tool for testing performance of wind generating set

Abstract

The invention discloses a flexible tool for testing the performance of a wind generating set, and relates to the technical field of flexible tools for wind generating sets, the flexible tool comprises a base, a rotating hole is formed in the upper side of the base, a rotating shaft is rotatably mounted in the rotating hole, and a placement table is fixedly mounted at the top end of the rotating shaft; according to the device, a rubber soft cushion makes contact with and is attached to the surface of a blade, so that each irregular area begins to extrude the rubber soft cushion in a self-adaptive mode, and the rubber soft cushion can rotate conveniently; the rubber soft cushion extrudes the telescopic rod in the connecting area of the rubber soft cushion, the multiple telescopic rods are arranged to conduct telescopic stretching and retracting to different degrees, so that the form formed by the rubber soft cushion is locked, the rubber soft cushion is attached to the blade during fixing, and when fixing is not needed, the sliding rod is inserted again, the telescopic rod is unlocked, and then the next positioning work can be conducted. Therefore, the fixing effect is improved.

Description

Technical Field

[0001] This invention relates to the field of flexible tooling technology for wind turbine generator sets, and in particular to a flexible tooling for testing the performance of wind turbine generator sets. Background Technology

[0002] A wind turbine is a power generation device that converts wind energy into mechanical energy, and then the mechanical energy into electrical energy through a generator. The electrical energy generated by a wind turbine is typically megawatt-level alternating current with a high voltage. The electricity generated by the wind turbine is transmitted over long distances through high-voltage transmission lines in the power grid to meet the power needs of different regions and users. The generator set mainly consists of components such as a wind turbine, generator, deflector, tower, safety mechanism, and energy storage device. Before a wind turbine is put into use, in order to ensure its safety and performance, the blades need to undergo rigidity and strength performance testing. During performance testing, tooling is required to fix the test materials.

[0003] In existing technologies, when testing the rigidity and strength performance of wind turbine blades, torsional tests are required to evaluate the deformation of the blades under different torsional forces, thereby determining whether their torsional stiffness meets the design requirements. During the torsional test, the blades need to be fixed. However, due to the special shape and structure of the blades, traditional tooling cannot completely fit the surface during the fixing process, resulting in a decrease in the fixing effect. Therefore, we disclose a flexible tooling for wind turbine performance testing to meet people's needs. Summary of the Invention

[0004] The purpose of this application is to provide a flexible fixture for testing the rigidity and strength of wind turbine blades, in order to solve the problem mentioned in the background art that when performing torsion tests on the blades, it is necessary to fix them. However, due to the special shape and structure of the blades, traditional fixtures cannot be fully fitted to the surface during the fixing process, resulting in a decrease in the fixing effect.

[0005] To achieve the above objectives, this application provides the following technical solution: a flexible tooling for testing the performance of a wind turbine generator set, comprising a base, a rotating hole on the upper side of the base, a rotating shaft rotatably mounted in the rotating hole, a placement platform fixedly mounted on the top of the rotating shaft, a rotating component for facilitating the rotation of the rotating shaft fixedly mounted on the lower side of the rotating shaft, an adjustment groove on the upper side of the placement platform, two adjustment blocks slidably mounted in the adjustment groove, and a fixing component for flexibly fixing fixedly mounted on the upper side of the adjustment blocks; The fixing assembly includes two adjusting boxes, each of which is fixedly installed on the upper side of two adjusting blocks. Several tube sleeves are fixedly installed on the inner wall of each adjusting box. Limiting plates are slidably installed on the inner wall of each tube sleeve. A telescopic rod is fixedly installed on one side of each limiting plate, and a return spring is fixedly installed on the other side of each limiting plate. The other end of each telescopic rod is fixedly installed with the same rubber pad for fitting the blade. A locking unit is slidably installed on the inner bottom wall of the adjusting box to facilitate locking the telescopic rods.

[0006] Preferably, the locking unit includes several primary positioning plates, all of which are slidably mounted on the inner bottom wall of the regulating box. A single primary connecting rod is fixedly mounted on the upper side of each of the primary positioning plates. Several secondary positioning plates are slidably mounted on the inner bottom wall of the regulating box, and a single secondary connecting rod is fixedly mounted on the upper side of each of the secondary positioning plates. Several positioning grooves for positioning the telescopic rod are provided on the opposite surfaces of the primary and secondary positioning plates. Several compression springs are fixedly mounted on both sides of the inner wall of the regulating box. On one side, one end of several compression springs is fixedly mounted on one side of one of the primary positioning plates, and on the other side, one end of several compression springs is fixedly mounted on one side of one of the secondary positioning plates.

[0007] Preferably, the locking unit further includes a slide rod, a sliding opening is provided on one side of the adjusting box, the slide rod is slidably installed in the sliding opening, a primary extrusion opening is provided on one side of the primary connecting rod, a primary extrusion block for extruding the primary extrusion opening is fixedly installed on the surface of the slide rod, a secondary extrusion opening is provided on one side of the secondary connecting rod, and a secondary extrusion block for extruding the secondary extrusion opening is fixedly installed on the surface of the slide rod.

[0008] Preferably, a drive hole is provided on one side of the placement plate, and a bidirectional lead screw is rotatably installed in the drive hole. Both adjustment blocks are screwed onto the threaded area of ​​the bidirectional lead screw surface.

[0009] Preferably, an extrusion motor is fixedly installed on one side of the placement platform, and the output shaft of the extrusion motor is coaxially and fixedly connected to one end of a bidirectional lead screw.

[0010] Preferably, the rotating assembly includes a worm gear, which is fixedly mounted on the lower side of the rotating shaft, and a worm is rotatably mounted on the inner wall of the base, the worm meshing with the worm gear.

[0011] Preferably, a steering motor is fixedly installed on the inner wall of the base, and the output shaft of the steering motor is coaxially and fixedly connected to one end of the worm gear.

[0012] Preferably, the upper side of the placement platform is provided with a plurality of stabilizing grooves, and stabilizing blocks are slidably installed in the stabilizing grooves. The stabilizing blocks are all fixedly installed on the upper side of the adjustment box.

[0013] Preferably, a pull block is fixedly installed at one end of the slide rod.

[0014] Preferably, an inspection cover is fixedly installed on the upper side of both adjustment boxes.

[0015] In summary, the technical effects and advantages of this invention are as follows: 1. In this invention, by contacting and adhering the rubber pad to the blade surface, each irregular area begins to adaptively compress the rubber pad. The rubber pad compresses the telescopic rods in its connecting area, causing multiple telescopic rods to contract and expand to varying degrees. This, combined with the rubber pad, gradually forms a fixed shape that conforms to the blade surface. By pulling a block outward from the adjustment box, the block drives a sliding rod, which in turn causes the primary and secondary compression blocks to disengage from their respective compression ports. Once completely disengaged, the spring force of the compression springs on both sides of the adjustment box compresses a primary positioning plate and a secondary positioning plate. With the cooperation of the primary and secondary connecting rods, several primary and secondary positioning plates move in opposite directions towards the telescopic rod. The compression action of the primary and secondary positioning plates fixes the telescopic rod, restricting its expansion and contraction. This locks the shape formed by the rubber pad, ensuring it adheres to the blade during fixation. When fixation is no longer needed, the sliding rod is reinserted, unlocking the telescopic rod for the next positioning operation, thus improving the fixing effect.

[0016] 2. In this invention, the blade to be tested is placed on a placement plate between two rubber pads. The output of the extrusion motor drives a bidirectional lead screw to rotate. The bidirectional lead screw drives two adjusting blocks to move closer to each other. The two adjusting blocks drive two adjusting boxes to move. The two adjusting boxes drive several sleeves to move. The sleeves drive several telescopic rods to move. The telescopic rods drive the same rubber pad to move, bringing the two rubber pads closer to the blade to be fixed, thus achieving the effect of quickly fixing the blade.

[0017] 3. In this invention, the worm gear is driven to rotate by the output end of the steering motor, the worm gear drives the worm wheel to rotate, the worm wheel drives the rotating shaft to rotate, the rotating shaft drives the placement platform to rotate, and the placement platform drives the fixed blades to rotate and adjust, thereby achieving the effect of facilitating the angle adjustment of the blades. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the placement platform of the present invention; Figure 3 This is a schematic diagram of the internal structure of the regulating box in this invention; Figure 4 This is a cross-sectional view of the regulating box in this invention; Figure 5 for Figure 4 A magnified schematic diagram of a portion of region A in the middle; Figure 6 This is a schematic diagram of the cross-sectional structure of the sleeve in this invention; Figure 7 This is a cross-sectional view of the base in this invention.

[0020] In the diagram: 1. Base; 2. Placement platform; 3. Adjusting block; 4. Adjusting box; 5. Tube sleeve; 6. Rubber pad; 7. Primary positioning plate; 8. Primary connecting rod; 9. Secondary positioning plate; 10. Secondary connecting rod; 11. Compression spring; 12. Slide rod; 13. Primary compression block; 14. Secondary compression block; 15. Limiting plate; 16. Telescopic rod; 17. Return spring; 18. Two-way lead screw; 19. Compression motor; 20. Stabilizing block; 21. Stabilizing groove; 22. Pulling block; 23. Inspection cover; 24. Rotating shaft; 25. Worm gear; 26. Worm; 27. Steering motor. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-7 The embodiments provided by the present invention are as follows: A flexible fixture for testing the performance of a wind turbine generator set includes a base 1. A rotating hole is provided on the upper side of the base 1, and a rotating shaft 24 is rotatably installed in the rotating hole. A placement platform 2 is fixedly installed on the top of the rotating shaft 24. A rotating component that facilitates the rotation of the rotating shaft 24 is fixedly installed on the lower side of the rotating shaft. An adjustment groove is provided on the upper side of the placement platform 2, and two adjustment blocks 3 are slidably installed in the adjustment groove. A fixing component that facilitates flexible fixing is fixedly installed on the upper side of the adjustment blocks 3. The fixing assembly includes two adjusting boxes 4, which are fixedly installed on the upper side of two adjusting blocks 3. Several tube sleeves 5 are fixedly installed on the inner wall of the adjusting box 4. Limiting plates 15 are slidably installed on the inner wall of the tube sleeves 5. A telescopic rod 16 is fixedly installed on one side of the limiting plate 15, and a return spring 17 is fixedly installed on the other side of the limiting plate 15. The other end of the telescopic rods 16 is fixedly installed with the same rubber pad 6 for fitting the blade. A locking unit for locking the telescopic rods 16 is slidably installed on the inner bottom wall of the adjusting box 4. Inspection covers 23 are fixedly installed on the upper side of the two adjusting boxes 4. The two adjusting boxes 4 are symmetrically installed, and multiple telescopic rods 16 with equal spacing are arranged on their opposite sides. Each telescopic rod 16 can extend and retract independently under the action of the tube sleeve 5 and the return spring 17 connected to it. Through the adaptive extension and retraction of each telescopic rod 16 in conjunction with the rubber pad 6, the soft rubber pad 6 can be formed to fit the blade surface, thereby better fixing.

[0023] like Figure 3 and Figure 4 As shown, the locking unit includes several primary positioning plates 7, which are slidably installed on the inner bottom wall of the regulating box 4. The same primary connecting rod 8 is fixedly installed on the upper side of the primary positioning plates 7. Several secondary positioning plates 9 are slidably installed on the inner bottom wall of the regulating box 4. The same secondary connecting rod 10 is fixedly installed on the upper side of the secondary positioning plates 9. Several positioning grooves for positioning the telescopic rod 16 are opened on the opposite surfaces of the primary positioning plates 7 and the secondary positioning plates 9. Several compression springs 11 are fixedly installed on both sides of the inner wall of the regulating box 4. One end of several compression springs 11 on one side is fixedly installed on one side of one of the primary positioning plates 7, and one end of several compression springs 11 on the other side is fixedly installed on one side of one of the secondary positioning plates 9. The number of primary positioning plates 7 and secondary positioning plates 9 is the same. One primary positioning plate 7 and one secondary positioning plate 9 form a group. The two are installed symmetrically, and the number of positioning grooves opened on their surfaces is the same. The telescopic rod 16 can be fixed longitudinally through the positioning grooves.

[0024] like Figure 5As shown, the locking unit also includes a slide rod 12. A sliding opening is provided on one side of the adjusting box 4, and the slide rod 12 is slidably installed within the sliding opening. A primary compression port is provided on one side of the primary connecting rod 8. A primary compression block 13 for compressing the primary compression port is fixedly installed on the surface of the slide rod 12. A secondary compression port is provided on one side of the secondary connecting rod 10, and a secondary compression block 14 for compressing the secondary compression port is fixedly installed on the surface of the slide rod 12. A pull block 22 is fixedly installed at one end of the slide rod 12. The primary compression block 13 and the secondary compression block 14 installed on the slide rod 12 are in opposite directions. 13 is installed on the right side of slide rod 12, and secondary extrusion block 14 is installed on the right side of slide rod 12. When slide rod 12 moves and causes primary extrusion block 13 to extrude primary extrusion port, it will drive primary connecting rod 8 to extrude extrusion spring 11 connected to primary positioning plate 7, causing primary positioning plate 7 to gradually move away from telescopic rod 16, thereby unlocking telescopic rod 16. When secondary extrusion block 14 extrudes secondary extrusion port, it will extrude extrusion spring 11 connected to secondary positioning plate 9, causing secondary positioning plate 9 to gradually move away from telescopic rod 16, thereby unlocking telescopic rod 16.

[0025] like Figure 2 As shown, a drive hole is provided on one side of the placement plate, and a bidirectional lead screw 18 is rotatably installed in the drive hole. Two adjusting blocks 3 are screwed onto the threaded area of ​​the surface of the bidirectional lead screw 18. An extrusion motor 19 is fixedly installed on one side of the placement platform 2. The output shaft of the extrusion motor 19 is coaxially fixedly connected to one end of the bidirectional lead screw 18. There are two opposite threaded areas on the surface of the bidirectional lead screw 18. Two adjusting blocks 3 are screwed onto the surfaces of the two opposite threaded areas respectively.

[0026] like Figure 7 As shown, the rotating assembly includes a worm gear 25, which is fixedly installed on the lower side of the rotating shaft 24. A worm 26 is rotatably installed on the inner wall of the base 1, and the worm 26 meshes with the worm gear 25. A steering motor 27 is fixedly installed on the inner wall of the base 1, and the output shaft of the steering motor 27 is coaxially and fixedly connected to one end of the worm 26.

[0027] like Figure 2 As shown, the upper side of the placement platform 2 is provided with several stabilizing grooves 21, and stabilizing blocks 20 are slidably installed in the stabilizing grooves 21. The stabilizing blocks 20 are all fixedly installed on the upper side of the adjustment box 4. Two stabilizing blocks 20 are installed on the lower side of one adjustment box 4. When the adjustment block 3 moves, the stabilizing blocks 20 can cooperate with the stabilizing grooves 21 to improve the movement stability of the adjustment box 4.

[0028] Working principle of this invention: When using the device, first fix the base 1 in the area to be tested, then place the blade to be tested on the placement plate and between two rubber pads 6. Next, start the extrusion motor 19. The output end of the extrusion motor 19 drives the bidirectional lead screw 18 to rotate. The bidirectional lead screw 18 drives the two adjusting blocks 3 to move closer to each other. The two adjusting blocks 3 drive the two adjusting boxes 4 to move. The two adjusting boxes 4 drive several tube sleeves 5 to move. The tube sleeves 5 drive several telescopic rods 16 to move. The several telescopic rods 16 drive the same rubber pad 6 to move, so that the two rubber pads 6 move closer to each other and the blade to be fixed. When the rubber pad 6 contacts and adheres to the blade surface, each irregular area begins to adaptively compress the rubber pad 6. The rubber pad 6 compresses the telescopic rod 16 in its connecting area, causing multiple telescopic rods 16 to contract and expand to different degrees. This, in conjunction with the rubber pad 6, gradually forms a fixed shape that conforms to the blade surface. When the rubber pad 6 is completely adhered to the blade surface, the compression motor 19 is paused. At this time, the pull block 22 is pulled outward from the adjusting box 4. The pull block 22 drives the slide rod 12 to move. The slide rod 12 causes the primary compression block 13 and the secondary compression block 14 to disengage from the primary and secondary compression ports, respectively. Once completely disengaged, at this point... Under the elastic force of the compression springs 11 on both sides of the regulating box 4, a primary positioning plate 7 and a secondary positioning plate 9 are respectively compressed. With the cooperation of the primary connecting rod 8 and the secondary connecting rod 10, several primary positioning plates 7 and several secondary positioning plates 9 are driven to approach the telescopic rod 16 in the opposite direction. Under the compression action of the primary positioning plates 7 and the secondary positioning plates 9, the telescopic rod 16 is fixed, restricting its telescopic movement, thereby fixing the shape formed by the rubber pad 6. At this time, the compression motor 19 is started again, driving the two rubber pads 6 to gradually approach and compress the blade. The compression motor 19 is then turned off, thus completing the fixing of the blade. After fixing, start the steering motor 27. The output end of the steering motor 27 drives the worm 26 to rotate, the worm 26 drives the worm wheel 25 to rotate, the worm wheel 25 drives the rotating shaft 24 to rotate, the rotating shaft 24 drives the placement platform 2 to rotate, and the placement platform 2 drives its fixed blades to rotate and adjust to the optimal test position. Finally, use the test equipment to test its performance. After the final test, start the extrusion motor 19 to rotate in the opposite direction, remove the blade, and reinsert the slide bar 12 to unlock the telescopic rod 16 and complete the test.

[0029] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flexible fixture for testing the performance of a wind turbine generator set, comprising a base (1), characterized in that: The base (1) has a rotating hole on its upper side, and a rotating shaft (24) is rotatably installed in the rotating hole. A placement platform (2) is fixedly installed on the top of the rotating shaft (24). A rotating component that facilitates the rotation of the rotating shaft (24) is fixedly installed on the lower side of the rotating shaft. An adjustment groove is provided on the upper side of the placement platform (2). Two adjustment blocks (3) are slidably installed in the adjustment groove. A fixing component that facilitates flexible fixing is fixedly installed on the upper side of the adjustment blocks (3). The fixing assembly includes two adjusting boxes (4), both of which are fixedly installed on the upper side of two adjusting blocks (3). Several tube sleeves (5) are fixedly installed on the inner wall of the adjusting box (4). Limiting plates (15) are slidably installed on the inner wall of the tube sleeves (5). A telescopic rod (16) is fixedly installed on one side of the limiting plate (15). A return spring (17) is fixedly installed on the other side of the limiting plate (15). The same rubber pad (6) for fitting the blade is fixedly installed at the other end of the telescopic rods (16). A locking unit for locking the telescopic rods (16) is slidably installed on the inner bottom wall of the adjusting box (4).

2. The flexible fixture for testing the performance of a wind turbine generator set according to claim 1, characterized in that: The locking unit includes several primary positioning plates (7), which are slidably installed on the inner bottom wall of the regulating box (4). The same primary connecting rod (8) is fixedly installed on the upper side of the primary positioning plates (7). Several secondary positioning plates (9) are slidably installed on the inner bottom wall of the regulating box (4). The same secondary connecting rod (10) is fixedly installed on the upper side of the secondary positioning plates (9). Several positioning grooves for positioning the telescopic rod (16) are opened on the opposite surfaces of the primary positioning plates (7) and the secondary positioning plates (9). Several compression springs (11) are fixedly installed on both sides of the inner wall of the regulating box (4). One end of several compression springs (11) on one side is fixedly installed on one side of one of the primary positioning plates (7), and one end of several compression springs (11) on the other side is fixedly installed on one side of one of the secondary positioning plates (9).

3. The flexible fixture for testing the performance of a wind turbine generator set according to claim 2, characterized in that: The locking unit also includes a slide rod (12). A sliding opening is provided on one side of the adjusting box (4). The slide rod (12) is slidably installed in the sliding opening. A primary extrusion port is provided on one side of the primary connecting rod (8). A primary extrusion block (13) for extruding the primary extrusion port is fixedly installed on the surface of the slide rod (12). A secondary extrusion port is provided on one side of the secondary connecting rod (10). A secondary extrusion block (14) for extruding the secondary extrusion port is fixedly installed on the surface of the slide rod (12).

4. The flexible fixture for testing the performance of a wind turbine generator set according to claim 1, characterized in that: A drive hole is provided on one side of the placement plate, and a bidirectional lead screw (18) is rotatably installed in the drive hole. Both adjustment blocks (3) are screwed onto the threaded area of ​​the surface of the bidirectional lead screw (18).

5. The flexible fixture for testing the performance of a wind turbine generator set according to claim 4, characterized in that: An extrusion motor (19) is fixedly installed on one side of the placement platform (2), and the output shaft of the extrusion motor (19) is coaxially and fixedly connected to one end of the bidirectional lead screw (18).

6. The flexible fixture for testing the performance of a wind turbine generator set according to claim 1, characterized in that: The rotating assembly includes a worm gear (25), which is fixedly installed on the lower side of the rotating shaft (24). A worm (26) is rotatably installed on the inner wall of the base (1), and the worm (26) meshes with the worm gear (25).

7. The flexible fixture for testing the performance of a wind turbine generator set according to claim 6, characterized in that: A steering motor (27) is fixedly installed on the inner wall of the base (1), and the output shaft of the steering motor (27) is coaxially and fixedly connected to one end of the worm (26).

8. The flexible fixture for testing the performance of a wind turbine generator set according to claim 4, characterized in that: The upper side of the placement platform (2) is provided with several stabilizing grooves (21), and stabilizing blocks (20) are slidably installed in the stabilizing grooves (21). The stabilizing blocks (20) are all fixedly installed on the upper side of the adjustment box (4).

9. The flexible fixture for testing the performance of a wind turbine generator set according to claim 3, characterized in that: A pull block (22) is fixedly installed at one end of the slide rod (12).

10. The flexible fixture for testing the performance of a wind turbine generator set according to claim 1, characterized in that: Both of the aforementioned regulating boxes (4) have inspection covers (23) fixedly installed on their upper sides.

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