Wind power blade nondestructive testing technology

Abstract

The invention relates to the technical field of wind power blade detection, in particular to a wind power blade nondestructive testing technology which comprises a detection device base, one side of the detection device base is fixedly connected with a vertical plate, one side of the vertical plate is provided with a detection assembly, the detection assembly comprises a groove, the groove is formed in one side of the vertical plate, and the vertical plate is fixedly connected with the vertical plate. One side of the vertical plate is fixedly connected with a first motor. According to the wind power blade nondestructive testing technology, a first motor is started to drive a first lead screw to rotate, the first lead screw rotates to drive a first moving block to move, a first moving block on the other side moves on an auxiliary rod, then a second motor is started to drive a second lead screw to rotate to drive a second moving block to move left and right, and a first electric push rod pushes a first connecting plate to move downwards; and then the second connecting plate is pushed to move downwards, so that the ultrasonic probe on the other side is attached to the wind power blade, the surface of the blade is effectively prevented from being damaged when the wind power blade is detected, and comprehensive detection of the blade can be flexibly adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blade detection, and particularly to a non-destructive detection technology for wind turbine blades. Background Art

[0002] Wind turbine blades are key components for effectively capturing wind energy in wind turbines. Their function is to convert wind energy into mechanical energy, and then drive the generator to rotate to generate electric energy. They are mainly made of glass-reinforced thermosetting plastics, wood and wooden boards, carbon fiber-reinforced plastics, steel, aluminum, etc. Nowadays, large wind turbine blades mostly use composite materials, such as carbon fiber, glass fiber and other resin matrix composites reinforced with them, which have the advantages of light weight, high strength, corrosion resistance, fatigue resistance, etc. They can reduce the weight of the blades while ensuring the blade performance, improve the power generation efficiency. The development of wind turbine blades is of great significance for promoting the development of the wind power industry. With the progress of technology, the length and single-unit capacity of the blades are continuously increasing, making the proportion of wind power generation in the energy structure gradually increase, providing strong support for the large-scale application of clean energy.

[0003] Wind turbine blade detection is an important link to ensure the safe and reliable operation of wind turbine blades. It mainly checks whether there are defects such as cracks, abrasions, corrosion, bubbles, scratches, etc. on the blade surface, as well as whether the edges of the blades are neat and the coatings are intact. These appearance problems may affect the aerodynamic performance and structural strength of the blades, and then affect the power generation efficiency and the service life of the blades. During operation, routine inspections are usually carried out every six months or one year, mainly including appearance inspection and some simple performance inspections to timely detect possible problems during operation.

[0004] Most of the existing wind turbine blade detections use ultrasonic probes to detect whether there is damage on the surface. However, the shape of wind turbine blades is irregular, which causes the ultrasonic probes to be squeezed during detection, resulting in damage to the probes and low detection efficiency. Therefore, a non-destructive detection technology for wind turbine blades is needed. Summary of the Invention

[0005] The object of the present invention is to provide a non-destructive testing technology for wind turbine blades to solve the problem that the irregular shape of wind turbine blades causes the ultrasonic probe to be squeezed during testing, resulting in damage to the probe and low testing efficiency. To achieve the above object, the present invention provides the following technical solution: A non-destructive testing technology for wind turbine blades, including a base of the testing device, one side of the base of the testing device is fixedly connected with a vertical plate, and a testing component is arranged on one side of the vertical plate. The testing component includes a groove, the groove is opened on one side of the vertical plate, one side of the vertical plate is fixedly connected with a first motor, the driving end of the first motor is fixedly connected with a first lead screw, a first moving block is movably connected to the side surface of the first lead screw, one side of the first moving block is fixedly connected with a cross plate, an activity groove is opened on one side of the cross plate, one side of the cross plate is fixedly connected with a second motor, the driving end of the second motor is fixedly connected with a second lead screw, a second moving block is movably connected to the side surface of the second lead screw, one side of the second moving block is fixedly connected with a first electric push rod, the other end of the first electric push rod is fixedly connected with a sleeve, a rotating column is movably connected inside the sleeve, one end of the rotating column is fixedly connected with a first connecting plate, a spring is fixedly connected to the other side of the first connecting plate, a telescopic rod is fixedly connected to one side of the first connecting plate, the other end of the telescopic rod is fixedly connected with a second connecting plate, a first protective pad is fixedly connected to one side of the second connecting plate, an ultrasonic probe is fixedly connected to one side of the second connecting plate, an auxiliary rod is fixedly connected inside the groove, and the auxiliary rod is movably connected with the first moving block. The setting of the testing component is as follows: Place the wind turbine blade on the conveyor belt, then start the first motor to drive the first lead screw to rotate. The rotation of the first lead screw drives the first moving block to move, and the first moving block on the other side moves on the auxiliary rod. Then start the second motor to drive the second lead screw to rotate to drive the second moving block to move left and right. The first electric push rod pushes the first connecting plate to move downward, and then pushes the second connecting plate to move downward so that the ultrasonic probe on the other side fits the wind turbine blade and slightly squeezes the second connecting plate to contract backward, thereby squeezing the spring, so that the ultrasonic probe can always fit the wind turbine blade during the moving test. Due to the inclined shape of the wind turbine blade, the sleeve rotates on the rotating column to adjust the fitting angle to ensure comprehensive detection. It effectively improves the non-destruction of the blade surface during the detection of wind turbine blades and can flexibly adjust the comprehensive detection of the blades, which has practicality.

[0006] Further preferably, a first position groove is opened on one side of the base of the testing device, and a second position groove is opened on one side of the vertical plate.

[0007] Further preferably, a clamping assembly is provided on one side of the vertical plate. The clamping assembly includes a third motor, which is fixedly connected to one side of the base of the detection device. The driving end of the third motor is fixedly connected to a bidirectional lead screw. A third moving block is movably connected to the side surface of the bidirectional lead screw. One side of the third moving block is fixedly connected to a hydraulic rod, and the other end of the hydraulic rod is fixedly connected to a concave plate. One side of the concave plate is fixedly connected to a second electric push rod, and the other end of the second electric push rod is fixedly connected to a fixing plate. A second protective pad is fixedly connected to the other side of the fixing plate. The setting of the clamping assembly is such that by starting the third motor to drive the bidirectional lead screw to rotate, the two third moving blocks move synchronously to adjust the clamping position of the wind power blade on the conveyor belt. Then, the hydraulic rod is started to push the concave plate forward to the side of the blade, and the second electric push rod is pushed to press down the fixing plate to fit and fix it with the wind power blade. The second protective pad protects the blade to avoid damaging the blade surface. The movement of the bidirectional lead screw enables the clamping position to change, and comprehensive detection can be carried out during detection, effectively improving the stability of the wind power blade during detection and preventing shaking from affecting the detection.

[0008] Further preferably, a transmission assembly is provided on one side of the first position groove. The transmission assembly includes a fourth motor, which is fixedly connected to the inner wall of the first position groove. The driving end of the fourth motor is fixedly connected to a rotating column, and the other end of the rotating column is movably connected to a rotating cylinder. The rotating cylinder is fixedly connected to the inner wall of the first position groove. A conveyor belt is movably connected to the side surface of the rotating column. The setting of the transmission assembly is such that by starting the fourth motor to drive the rotating column to rotate in the rotating cylinder, the conveyor belt operates to drive the wind power blade to the detection position of the device, saving manpower during movement, effectively improving the functionality of the device, reducing the time of manual handling, and improving the detection efficiency.

[0009] Further preferably, a control box is fixedly connected to one side of the vertical plate, and a control button is fixedly connected to one side of the control box.

[0010] Further preferably, support feet are fixedly connected to the bottom of the base of the detection device, and anti-slip pads are fixedly connected to the bottoms of the support feet.

[0011] Compared with the prior art, the beneficial effects of the present invention are: In the present invention, for the setting of the detection component, the wind power blade is placed on the conveyor belt, and then the first motor is started to drive the first lead screw to rotate. The rotation of the first lead screw drives the first moving block to move, and the first moving block on the other side moves on the auxiliary rod. Then, the second motor is started to drive the second lead screw to rotate, driving the second moving block to move left and right. The first electric push rod pushes the first connecting plate downward, and then pushes the second connecting plate downward, so that the ultrasonic probe on the other side is attached to the wind power blade and slightly squeezes the second connecting plate to contract backward, thereby squeezing the spring, ensuring that the ultrasonic probe can always be attached to the wind power blade during the moving detection. Due to the shape inclination of the wind power blade, the sleeve rotates on the rotating column to adjust the fitting angle, ensuring comprehensive detection. This effectively improves the detection of wind power blades without damaging the blade surface and can flexibly adjust the comprehensive detection of the blades, having practicality.

[0012] In the present invention, for the setting of the clamping component, the third motor is started to drive the bidirectional lead screw to rotate, so that the two moving blocks on both sides move synchronously to adjust the clamping position of the wind power blade on the conveyor belt. Then, the hydraulic rod is started to push the concave plate forward to one side of the blade, and the second electric push rod is pushed downward to press the fixed plate to be attached and fixed to the wind power blade. The second protective pad protects the blade to avoid damaging the blade surface. The moving of the bidirectional lead screw enables the clamping position to change, ensuring comprehensive detection during the detection, effectively improving the stability of the wind power blade during the detection of the wind power blade and preventing shaking from affecting the detection.

[0013] In the present invention, for the setting of the transmission component, the fourth motor is started to drive the rotating column to rotate in the rotating cylinder, so that the conveyor belt operates to drive the wind power blade to the detection position of the device. This saves manpower during the movement, effectively improves the functionality of the device, reduces the time for manual handling, and improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic three-dimensional structure of the present invention Figure 1 ; Figure 2 Schematic structure of the detection component of the present invention Figure 1 ; Figure 3 Schematic structure of the detection component of the present invention Figure 2 ; Figure 4 Schematic three-dimensional structure of the present invention Figure 2 ; Figure 5 Schematic structure diagram of the clamping component of the present invention; Figure 6 Schematic structure diagram of the transmission component of the present invention.

[0015] In the figure: 1. Base of the detection device; 2. Vertical plate; 3. Detection component; 4. First position slot; 5. Second position slot; 6. Clamping component; 7. Transmission component; 8. Control box; 9. Control button; 10. Support foot; 11. Anti-slip pad; 301. Groove; 302. First motor; 303. First lead screw; 304. First moving block; 305. Horizontal plate; 306. Activity slot; 307. Second motor; 308. Second lead screw; 309. Second moving block; 310. First electric push rod; 311. Sleeve; 312. Rotating column; 313. First connecting plate; 314. Spring; 315. Telescopic rod; 316. Second connecting plate; 317. First protective pad; 318. Ultrasonic probe; 319. Auxiliary rod; 601. Third motor; 602. Bi-directional lead screw; 603. Third moving block; 604. Hydraulic rod; 605. Concave plate; 606. Second electric push rod; 607. Fixed plate; 608. Second protective pad; 701. Fourth motor; 702. Rotating column; 703. Rotating cylinder; 704. Transmission belt. Specific implementation manner

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] Please refer to Figure 1 - Figure 6, the present invention provides a technical solution: a non-destructive testing technology for wind turbine blades, including a base 1 of the testing device. One side of the base 1 of the testing device is fixedly connected to a vertical plate 2. One side of the vertical plate 2 is provided with a testing component 3. The testing component 3 includes a groove 301, and the groove 301 is opened on one side of the vertical plate 2. One side of the vertical plate 2 is fixedly connected to a first motor 302. The driving end of the first motor 302 is fixedly connected to a first lead screw 303. The side surface of the first lead screw 303 is movably connected to a first moving block 304. One side of the first moving block 304 is fixedly connected to a cross plate 305. One side of the cross plate 305 is provided with a movable slot 306. One side of the cross plate 305 is fixedly connected to a second motor 307. The driving end of the second motor 307 is fixedly connected to a second lead screw 308. The side surface of the second lead screw 308 is movably connected to a second moving block 309. One side of the second moving block 309 is fixedly connected to a first electric push rod 310. The other end of the first electric push rod 310 is fixedly connected to a sleeve 311. The inside of the sleeve 311 is movably connected to a rotating column 312. One end of the rotating column 312 is fixedly connected to a first connecting plate 313. The other side of the first connecting plate 313 is fixedly connected to a spring 314. One side of the first connecting plate 313 is fixedly connected to a telescopic rod 315. The other end of the telescopic rod 315 is fixedly connected to a second connecting plate 316. One side of the second connecting plate 316 is fixedly connected to a first protective pad 317. One side of the second connecting plate 316 is fixedly connected to an ultrasonic probe 318. The inside of the groove 301 is fixedly connected to an auxiliary rod 319, and the auxiliary rod 319 is movably connected to the first moving block 304. By placing the wind turbine blade on the conveyor belt 704, then starting the first motor 302 to drive the first lead screw 303 to rotate, the rotation of the first lead screw 303 drives the first moving block 304 to move, and the first moving block 304 on the other side moves on the auxiliary rod 319. Then start the second motor 307 to drive the second lead screw 308 to rotate to drive the second moving block 309 to move left and right. The first electric push rod 310 pushes the first connecting plate 313 to move downward, and then pushes the second connecting plate 316 to move downward so that the ultrasonic probe 318 on the other side fits the wind turbine blade, and slightly squeezes the second connecting plate 316 to contract backward, thereby squeezing the spring 314, so that the ultrasonic probe 318 can always fit the wind turbine blade during the moving detection. Due to the inclination of the shape of the wind turbine blade, the sleeve 311 rotates on the rotating column 312 to adjust the fitting angle to ensure comprehensive detection.

[0018] In this embodiment, as Figure 1 and Figure 4 shown, a first position groove 4 is opened on one side of the base 1 of the testing device, and a second position groove 5 is opened on one side of the vertical plate 2.

[0019] In this embodiment, as Figure 1 、 Figure 4 and Figure 5As shown in the figure, a clamping assembly 6 is provided on one side of the vertical plate 2. The clamping assembly 6 includes a third motor 601, which is fixedly connected to one side of the base 1 of the detection device. The driving end of the third motor 601 is fixedly connected to a bidirectional lead screw 602. A third moving block 603 is movably connected to the side surface of the bidirectional lead screw 602. One side of the third moving block 603 is fixedly connected to a hydraulic rod 604. The other end of the hydraulic rod 604 is fixedly connected to a concave plate 605. One side of the concave plate 605 is fixedly connected to a second electric push rod 606. The other end of the second electric push rod 606 is fixedly connected to a fixing plate 607. The other side of the fixing plate 607 is fixedly connected to a second protective pad 608. By starting the third motor 601 to drive the bidirectional lead screw 602 to rotate, the third moving blocks 603 on both sides move synchronously to adjust the clamping position of the wind power blade on the transmission belt 704. Then, start the hydraulic rod 604 to push the concave plate 605 forward to the side of the blade, and push the second electric push rod 606 to press down the fixing plate 607 to make it fit and fix with the wind power blade. The second protective pad 608 protects the blade to avoid damaging the blade surface. The clamping position can be changed by the movement of the bidirectional lead screw 602, and the detection can be carried out comprehensively during the detection.

[0020] In this embodiment, as Figure 1 , Figure 4 and Figure 6 shown, the transmission assembly 7 includes a fourth motor 701, which is fixedly connected to the inner wall of the first position groove 4. The driving end of the fourth motor 701 is fixedly connected to a rotating column 702. The other end of the rotating column 702 is movably connected to a rotating cylinder 703, and the rotating cylinder 703 is fixedly connected to the inner wall of the first position groove 4. A transmission belt 704 is movably connected to the side surface of the rotating column 702. By starting the fourth motor 701 to drive the rotating column 702 to rotate in the rotating cylinder 703, the transmission belt 704 operates to drive the wind power blade to the detection position of the device, saving manpower during the movement.

[0021] In this embodiment, as Figure 1 and Figure 4 shown, a control box 8 is fixedly connected to one side of the vertical plate 2, and a control button 9 is fixedly connected to one side of the control box 8.

[0022] In this embodiment, as Figure 1 and Figure 4 shown, support feet 10 are fixedly connected to the bottom of the base 1 of the detection device, and anti-slip pads 11 are fixedly connected to the bottoms of the support feet 10.

[0023] The usage method and advantages of the present invention: For this non-destructive testing technology of wind power blades, during use, the working process is as follows: As Figure 1 , Figure 2 , Figure 3 ,Figure 4 , Figure 5 and Figure 6 As shown in Figure 4 , Figure 5 and Figure 6 , the operation of the device is controlled through the electrical connection of the control box 8. By starting the fourth motor 701, the rotating column 702 is driven to rotate within the rotating cylinder 703, causing the transmission belt 704 to operate and drive the wind power blade to the detection position of the device, saving manpower during movement. Then, by starting the third motor 601, the bidirectional lead screw 602 is driven to rotate, causing the moving blocks three 603 on both sides to move synchronously, adjusting the clamping position of the wind power blade on the transmission belt 704. Subsequently, the hydraulic rod 604 is started to push the concave plate 605 forward to one side of the blade, and the second electric push rod 606 is pushed to press down the fixing plate 607 to fit and fix with the wind power blade. The second protective pad 608 protects the blade to avoid damaging the blade surface. By moving the bidirectional lead screw 602, the clamping position can be changed, enabling comprehensive detection during inspection. By placing the wind power blade on the transmission belt 704, the first motor 302 is then started to drive the first lead screw 303 to rotate. The rotation of the first lead screw 303 drives the movement of the first moving block 304, and the first moving block 304 on the other side moves on the auxiliary rod 319. Then, the second motor 307 is started to drive the second lead screw 308 to rotate, driving the second moving block 309 to move left and right. The first electric push rod 310 pushes the first connecting plate 313 downward, and then pushes the second connecting plate 316 downward, causing the ultrasonic probe 318 on the other side to fit with the wind power blade and slightly squeezing the second connecting plate 316 to contract backward, thereby squeezing the spring 314, enabling the ultrasonic probe 318 to always fit with the wind power blade during movement detection. Due to the inclination of the shape of the wind power blade, the sleeve 311 rotates on the rotating column 312 to adjust the fitting angle, ensuring comprehensive detection.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Technical staff in this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-destructive testing technology for wind turbine blades, comprising a testing device base (1), characterized in that: A vertical plate (2) is fixedly connected to one side of the detection device base (1); a detection component (3) is arranged on one side of the vertical plate (2); the detection component (3) comprises a groove (301); the groove (301) is arranged on one side of the vertical plate (2); a motor 1 (302) is fixedly connected to one side of the vertical plate (2); a screw rod 1 (303) is fixedly connected to the transmission end of the motor 1 (302); a moving block 1 (304) is movably connected to the side surface of the screw rod 1 (303); a horizontal plate (305) is fixedly connected to one side of the moving block 1 (304); a movable groove (306) is arranged on one side of the horizontal plate (305); a motor 2 (307) is fixedly connected to one side of the horizontal plate (305); a screw rod 2 (308) is fixedly connected to the transmission end of the motor 2 (307); a moving block 2 (309) is movably connected to the side surface of the screw rod 2 (308); One side of the moving block 2 (309) is fixedly connected to an electric push rod 1 (310), the other end of the electric push rod 1 (310) is fixedly connected to a sleeve (311), the interior of the sleeve (311) is movably connected to a rotating column (312), one end of the rotating column (312) is fixedly connected to a connecting plate 1 (313), the other side of the connecting plate 1 (313) is fixedly connected to a spring (314), one side of the connecting plate 1 (313) is fixedly connected to a telescopic rod (315), the other end of the telescopic rod (315) is fixedly connected to a connecting plate 2 (316), one side of the connecting plate 2 (316) is fixedly connected to a protective pad 1 (317), one side of the connecting plate 2 (316) is fixedly connected to an ultrasonic probe (318), the interior of the groove (301) is fixedly connected to an auxiliary rod (319), and the auxiliary rod (319) is movably connected to the moving block 1 (304).

2. The nondestructive testing technology for wind turbine blades according to claim 1 is characterized in that: A first position slot (4) is provided on one side of the detection device base (1), and a second position slot (5) is provided on one side of the vertical plate (2).

3. The nondestructive testing technology for wind turbine blades according to claim 1 is characterized in that: A clamping assembly (6) is provided on one side of the vertical plate (2), and the clamping assembly (6) comprises a motor three (601), and the motor three (601) is fixedly connected to one side of the detection device base (1), and a driving end of the motor three (601) is fixedly connected to a bidirectional screw rod (602), and a side surface of the bidirectional screw rod (602) is movably connected to a moving block three (603), and one side of the moving block three (603) is fixedly connected to a hydraulic rod (604), and the other end of the hydraulic rod (604) is fixedly connected to a concave plate (605).

4. A nondestructive testing technology for wind turbine blades according to claim 3, characterized in that: One side of the concave plate (605) is fixedly connected to a second electric push rod (606), the other end of the second electric push rod (606) is fixedly connected to a fixed plate (607), and the other side of the fixed plate (607) is fixedly connected to a second protective pad (608).

5. A wind turbine blade nondestructive testing technology according to claim 2, characterized in that: A transmission assembly (7) is provided on one side of the position slot one (4), and the transmission assembly (7) comprises a motor four (701). The motor four (701) is fixedly connected to the inner wall of the position slot one (4), and the transmission end of the motor four (701) is fixedly connected to a rotating column (702).

6. A nondestructive testing technology for wind turbine blades according to claim 5, characterized in that: The other end of the rotating column (702) is movably connected to a rotating cylinder (703), the rotating cylinder (703) is fixedly connected to the inner wall of the position slot 1 (4), and the side surface of the rotating column (702) is movably connected to a transmission belt (704).

7. A wind turbine blade nondestructive testing technology according to claim 1, characterized in that: A control box (8) is fixedly connected to one side of the vertical plate (2), and a control button (9) is fixedly connected to one side of the control box (8).

8. The nondestructive testing technology for wind turbine blades according to claim 1 is characterized by: A support foot (10) is fixedly connected to the bottom of the detection device base (1), and an anti-slip pad (11) is fixedly connected to the bottom of the support foot (10).

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