Wind power blade crack detection mechanism

Abstract

The utility model discloses a wind power blade crack detection mechanism, which relates to the technical field of wind power blade detection and comprises a bottom frame and a flaw detection detector. Moving wheels are arranged at the four corners of the bottom face of the bottom frame, supports are fixed to the left side and the right side of the bottom frame, electric telescopic rods are fixed to the interiors of the supports, the top ends of the electric telescopic rods are connected with one side of the bottom face of the fixing base, the flaw detection detector is fixed to the top face of the bottom frame, and a detection unit is arranged in the fixing base. The wind power blade crack detection mechanism further comprises a controller, the controller is arranged on the left side of the top face of the bottom frame, the input end of the flaw detection detector is electrically connected with the output end of the detection probe, and according to the wind power blade crack detection mechanism, the detection probe is attached to a wind power blade through spring extension, so that cracks on the inner side and the outer side of the wind power blade can be detected; and meanwhile, the main industrial camera and the auxiliary industrial camera are matched to photograph and detect positions with detection problems, so that the detection accuracy is high due to double detection.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine blade detection, in particular to a crack detection mechanism for wind turbine blades. Background Technique

[0002] Blades are an industry with relatively high certainty, large market capacity, and clear profit models in wind power components. With the alleviation of the tight supply and demand situation, the wind turbine blade industry will also shift from a melee among numerous players to a competition among several strong players. China's wind turbine blade industry is undergoing an industry-wide reshuffle and integration. With the expansion of the wind turbine blade market scale, both costs and selling prices will decline, but the cost reduction rate of enterprises with scale, technology, and cost advantages will exceed the selling price reduction rate, and their profits will exceed the average level. The future industry competition pattern requires manufacturers to expand in scale, reduce costs, and maintain certain technological advantages. Due to the huge volume of wind turbine blades, it is very inconvenient for personnel to detect cracks in them. At the same time, the detection methods are relatively single and the detection accuracy is low. Therefore, we propose a crack detection mechanism for wind turbine blades. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a crack detection mechanism for wind turbine blades. The detection probe is made to fit the wind turbine blade by spring extension, so that cracks on the inner and outer sides of the wind turbine blade can be detected. At the same time, with the cooperation of the main industrial camera and the auxiliary industrial camera, the positions with problems in the detection can be photographed and detected. Such double detection makes the detection accuracy high, and can effectively solve the problems in the background technique.

[0004] To achieve the above object, the utility model provides the following technical solution: A crack detection mechanism for wind turbine blades, including a chassis and a flaw detector;

[0005] Chassis: Moving wheels are provided at the four corners of the bottom surface. Brackets are fixed on both the left and right sides of the chassis. An electric telescopic rod is fixed inside the bracket. The top end of the electric telescopic rod is connected to one side of the bottom surface of the fixed seat. The flaw detector is fixed on the top surface of the chassis, and a detection unit is provided inside the fixed seat;

[0006] Among them, a controller is further included. The controller is arranged on the left side of the top surface of the chassis. The input end of the flaw detector is electrically connected to the output end of the detection probe. The input end of the flaw detector is electrically connected to the output end of the controller. The input end of the controller is electrically connected to the output end of an external power supply.

[0007] Start the electric telescopic rod to adjust the height of the fixed seat. The provided moving wheels facilitate the movement of the device, thereby increasing the detection efficiency. The flaw detector cooperates with the detection probe to emit ultrasonic waves to detect cracks inside and outside the wind turbine blade.

[0008] Further, the detection unit includes side plates, linear motors, connecting seats, motors, main industrial cameras, main frames, and adjusting rods. At the bottom end of the inner side of the side plates, adjusting rods are fixed. The adjusting rods are slidably connected to the inside of the fixed seats. Linear motors are fixed to the inner sides of the side plates. A connecting seat is provided on the inner side of the moving sub-seat of the linear motor. A motor is installed on the front side of the connecting seat. The output shaft of the motor is connected to the main frame that rotates inside the connecting seat. The main industrial camera is placed inside the main frame. The input ends of the linear motor, the motor, and the main industrial camera are electrically connected to the output end of the controller. By starting the linear motor, the height of the main industrial camera can be adjusted, and at the same time, the motor can adjust the angle of the main industrial camera, thereby improving the accuracy of wind turbine blade detection.

[0009] Further, the detection unit further includes electric push rods, top plates, sub-frames, and sub-industrial cameras. The electric push rods are fixed to the outer sides of the side plates. The top ends of the electric push rods are connected to the bottom surface of the top plates. The sub-frames are fixed to the bottom surface of the top plates. The sub-industrial cameras are placed inside the sub-frames. The input ends of the electric push rods and the sub-industrial cameras are electrically connected to the output end of the controller. By starting the electric push rods, the height of the sub-industrial cameras can be adjusted to detect the top surface of the wind turbine blade.

[0010] Further, it further includes a placement rack, a limiting rack, and springs. There are two springs, which are fixed to the top surface of the fixed seat corresponding to the left and right. The top ends of the springs are connected to one side of the bottom surface of the placement rack. The limiting rack is fixed to the middle of the top surface of the fixed seat. The limiting rack is slidably connected to the outside of the placement rack. The inside of the placement rack is snap-connected to the detection probe. When the springs stretch, the detection probe automatically fits the surface of the wind turbine blade. The flaw detector cooperates with the detection probe to emit ultrasonic waves, and then the cracks inside and outside the wind turbine blade can be detected.

[0011] Further, it further includes a first lighting lamp and a second lighting lamp. There are two first lighting lamps, which are respectively fixed to both sides of the top surface of the fixed seat. There are two second lighting lamps, which are respectively installed on the inner sides of the top plates. The input ends of the first lighting lamp and the second lighting lamp are electrically connected to the output end of the controller. The first lighting lamp and the second lighting lamp can illuminate the surface of the wind turbine blade, thus ensuring that subsequent detection is not affected by dim light.

[0012] Further, it further includes alarm devices. There are two alarm devices, which are respectively fixed to the top surfaces of the corresponding two top plates. The input ends of the alarm devices are electrically connected to the output end of the controller. The alarm devices can flash and alarm when problems occur in the wind turbine blade detection, thus reminding personnel to check.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: This wind turbine blade crack detection mechanism has the following advantages:

[0014] 1. The height of the main industrial camera is adjusted by starting the linear motor, and at the same time, the motor can adjust the angle of the main industrial camera. The height of the secondary industrial camera is adjusted by starting the electric push rod, so as to detect the top surface of the wind turbine blade, thereby improving the accuracy of wind turbine blade detection.

[0015] 2. The detection probe is automatically attached to the surface of the wind turbine blade by spring extension, and the flaw detector cooperates with the detection probe to emit ultrasonic waves to detect cracks inside and outside the wind turbine blade.

[0016] 3. The surface of the wind turbine blade can be illuminated by the first lighting lamp and the second lighting lamp, so as to ensure that subsequent detection is not affected by dim light. The alarm can flash and alarm when there is a problem in the wind turbine blade detection, so as to remind the personnel to check. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the present invention;

[0018] Figure 2 For the present invention Figure 1 It is a partially enlarged schematic structural diagram at A in the present invention;

[0019] Figure 3 For the present invention Figure 1 It is a partially enlarged schematic structural diagram at B in the present invention.

[0020] In the figure: 1 chassis, 2 detection unit, 21 side plate, 22 linear motor, 23 connecting seat, 24 motor, 25 main industrial camera, 26 main frame, 27 adjusting rod, 28 electric push rod, 29 top plate, 210 secondary frame, 211 secondary industrial camera, 3 moving wheel, 4 bracket, 5 electric telescopic rod, 6 fixed seat, 7 flaw detector, 8 detection probe, 9 placement rack, 10 limit rack, 11 spring, 12 first lighting lamp, 13 second lighting lamp, 14 alarm, 15 controller. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the 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.

[0022] Please refer to Figures 1-3 , this embodiment provides a technical solution: a wind turbine blade crack detection mechanism, including a chassis 1 and a flaw detector 7;

[0023] Underframe 1: Movable wheels 3 are provided at all four corners of the bottom surface. Brackets 4 are fixed on both the left and right sides of the underframe 1. An electric telescopic rod 5 is fixed inside the bracket 4. The top end of the electric telescopic rod 5 is connected to one side of the bottom surface of the fixed seat 6. The flaw detector 7 is fixed on the top surface of the underframe 1. A detection unit 2 is provided inside the fixed seat 6. The detection unit 2 includes a side plate 21, a linear motor 22, a connecting seat 23, a motor 24, a main industrial camera 25, a main frame 26, and an adjusting rod 27. The bottom end of the inner side surface of the side plate 21 is fixed with the adjusting rod 27. The adjusting rod 27 is slidably connected to the inside of the fixed seat 6. The linear motor 22 is fixed on the inner side surface of the side plate 21. A connecting seat 23 is provided on the inner side surface of the mover seat of the linear motor 22. A motor 24 is installed on the front side surface of the connecting seat 23. The output shaft of the motor 24 is connected to the main frame 26 that rotates inside the connecting seat 23. The main industrial camera 25 is placed inside the main frame 26. The input ends of the linear motor 22, the motor 24, and the main industrial camera 25 are electrically connected to the output end of the controller 15. The linear motor 22 is started to adjust the height of the main industrial camera 25. At the same time, the motor 24 can adjust the angle of the main industrial camera 25, thereby improving the accuracy of wind turbine blade detection. The detection unit 2 further includes an electric push rod 28, a top plate 29, a secondary frame 210, and a secondary industrial camera 211. The electric push rod 28 is fixed on the outer side surface of the side plate 21. The top end of the electric push rod 28 is connected to the bottom surface of the top plate 29. The secondary frame 210 is fixed on the bottom surface of the top plate 29. The secondary industrial camera 211 is placed inside the secondary frame 210. The input ends of the electric push rod 28 and the secondary industrial camera 211 are electrically connected to the output end of the controller 15. The electric push rod 28 is started to adjust the height of the secondary industrial camera 211, thereby detecting the top surface of the wind turbine blade;

[0024] Among them, it further includes a controller 15 which is arranged on the left side of the top surface of the chassis 1. The input end of the flaw detector 7 is electrically connected to the output end of the detection probe 8, the input end of the flaw detector 7 is electrically connected to the output end of the controller 15, and the input end of the controller 15 is electrically connected to the output end of an external power supply. The electric telescopic rod 5 is started to adjust the height of the fixed seat 6. The provided moving wheels 3 facilitate the movement of the device, thereby increasing the detection efficiency. The flaw detector 7 and the detection probe 8 cooperate to emit ultrasonic waves to detect cracks inside and outside the wind turbine blade. It further includes a placement rack 9, a limiting rack 10 and springs 11. There are two springs 11 which are correspondingly fixed on the top surface of the fixed seat 6 from left to right. The top end of the spring 11 is connected to one side of the bottom surface of the placement rack 9. The limiting rack 10 is fixed in the middle of the top surface of the fixed seat 6. The limiting rack 10 is slidably connected to the outside of the placement rack 9. The inside of the placement rack 9 is snap-connected to the detection probe 8. The spring 11 extends to make the detection probe 8 automatically fit the surface of the wind turbine blade. The flaw detector 7 and the detection probe 8 cooperate to emit ultrasonic waves to detect cracks inside and outside the wind turbine blade. It further includes a first lighting lamp 12 and a second lighting lamp 13. There are two first lighting lamps 12 which are respectively fixed on both sides of the top surface of the fixed seat 6. There are two second lighting lamps 13 which are respectively installed on the inner side surfaces of the top plates 29. The input ends of the first lighting lamp 12 and the second lighting lamp 13 are electrically connected to the output end of the controller 15. The first lighting lamp 12 and the second lighting lamp 13 can illuminate the surface of the wind turbine blade, thereby ensuring that subsequent detections are not affected by dim light. It further includes an alarm 14. There are two alarms 14 which are respectively fixed on the top surfaces of the corresponding two top plates 29. The input end of the alarm 14 is electrically connected to the output end of the controller 15. The alarm 14 can flash and alarm when there are problems in the detection of the wind turbine blade, thereby reminding personnel to check.

[0025] The working principle of a wind turbine blade crack detection mechanism provided by the present utility model is as follows: First, the adjusting rod 27 slides inside the fixed seat 6 to adjust the position of the side plate 21. The electric telescopic rod 5 is started to adjust the height of the fixed seat 6. The spring 11 extends to make the detection probe 8 automatically fit the surface of the wind turbine blade. The flaw detector 7 and the detection probe 8 cooperate to emit ultrasonic waves to detect cracks inside and outside the wind turbine blade. The linear motor 22 is started to adjust the height of the main industrial camera 25. At the same time, the motor 24 can adjust the angle of the main industrial camera 25. The electric push rod 28 is started to adjust the height of the auxiliary industrial camera 211, so as to detect the top surface of the wind turbine blade, thereby improving the accuracy of the wind turbine blade detection. The provided first lighting lamp 12 and second lighting lamp 13 can illuminate the surface of the wind turbine blade, thereby ensuring that subsequent detections are not affected by dim light. The alarm 14 can flash and alarm when there are problems in the detection of the wind turbine blade, thereby reminding personnel to check.

[0026] It should be noted that the controller 15 disclosed in the above embodiments is of model S7-200. The main industrial camera 25 and the auxiliary industrial camera 211 can be freely configured according to the actual application scenarios. It is recommended to select an industrial camera of model GX2500-C. The flaw detector 7 can be selected as a flaw detector of model HY-580, and the alarm 14 can be selected as an audible and visual alarm of model KXB127-T. The controller 15 controls the linear motor 22, the motor 24, the main industrial camera 25, the auxiliary industrial camera 211, the electric push rod 28, the electric telescopic rod 5, the flaw detector 7, the first lighting lamp 12, the second lighting lamp 13 and the alarm 14 to work by using the commonly used methods in the prior art.

[0027] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A crack detection mechanism for a wind power blade, characterized in that: It includes a chassis (1) and a flaw detector (7); Chassis (1): Movable wheels (3) are provided at the four corners of the bottom surface. Brackets (4) are fixed on both the left and right sides of the chassis (1). An electric telescopic rod (5) is fixed inside the bracket (4). The top end of the electric telescopic rod (5) is connected to one side of the bottom surface of the fixed seat (6). The flaw detector (7) is fixed on the top surface of the chassis (1). A detection unit (2) is provided inside the fixed seat (6); Among them, a controller (15) is further included. The controller (15) is provided on the left side of the top surface of the chassis (1). The input end of the flaw detector (7) is electrically connected to the output end of the detection probe (8). The input end of the flaw detector (7) is electrically connected to the output end of the controller (15). The input end of the controller () is electrically connected to the output end of an external power supply.

2. The crack detection mechanism for a wind turbine blade according to claim 1, wherein: The detection unit (2) includes a side plate (21), a linear motor (22), a connecting seat (23), a motor (24), a main industrial camera (25), a main frame (26), and an adjusting rod (27). The bottom end of the inner side surface of the side plate (21) is fixed with the adjusting rod (27). The adjusting rod (27) is slidably connected to the inside of the fixed seat (6). The linear motor (22) is fixed on the inner side surface of the side plate (21). A connecting seat (23) is provided on the inner side surface of the mover seat of the linear motor (22). A motor (24) is installed on the front side surface of the connecting seat (23). The output shaft of the motor (24) is connected to the main frame (26) that rotates inside the connecting seat (23). The main industrial camera (25) is placed inside the main frame (26). The input ends of the linear motor (22), the motor (24), and the main industrial camera (25) are electrically connected to the output end of the controller (15).

3. The crack detection mechanism for a wind turbine blade according to claim 2, wherein: The detection unit (2) further includes an electric push rod (28), a top plate (29), a sub-frame (210), and a sub-industrial camera (211). The electric push rod (28) is fixed on the outer side surface of the side plate (21). The top end of the electric push rod (28) is connected to the bottom surface of the top plate (29). The sub-frame (210) is fixed on the bottom surface of the top plate (29). The sub-industrial camera (211) is placed inside the sub-frame (210). The input ends of the electric push rod (28) and the sub-industrial camera (211) are electrically connected to the output end of the controller (15).

4. A wind turbine blade crack detection mechanism according to claim 1, characterized in that: It further includes a placement rack (9), a limiting rack (10), and a spring (11). There are two springs (11) which are correspondingly fixed on the top surface of the fixed seat (6) from left to right. The top end of the spring (11) is connected to one side of the bottom surface of the placement rack (9). The limiting rack (10) is fixed in the middle of the top surface of the fixed seat (6). The limiting rack (10) is slidably connected to the outside of the placement rack (9). The inside of the placement rack (9) is snap-connected to the detection probe (8).

5. The crack detection mechanism for a wind turbine blade according to claim 3, characterized in that: It further includes a first lighting lamp (12) and a second lighting lamp (13). There are two first lighting lamps (12) which are respectively fixed on both sides of the top surface of the fixing base (6). There are two second lighting lamps (13) which are respectively installed on the inner side surfaces of the top plates (29). The input ends of the first lighting lamp (12) and the second lighting lamp (13) are electrically connected to the output end of the controller (15).

6. The crack detection mechanism for a wind turbine blade according to claim 3, characterized in that: It further includes an alarm (14). There are two alarms (14) which are respectively fixed on the top surfaces of the corresponding two top plates (29). The input end of the alarm (14) is electrically connected to the output end of the controller (15).

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