A production detector for wind turbine blades and its working method

Abstract

The present invention is used in the technical field of wind turbine blade production, and discloses a wind turbine blade production detector, which includes a test stand. One end of the test stand is fixedly provided with a support frame, and a rotating central shaft is installed at the upper end of the support frame. A test blade is fixedly installed on the outer surface of the central shaft through bolts. A support rod is fixedly provided on the outer surface of the central shaft. A dynamic detection mechanism is arranged on the inner surface of the function ring. By detecting during the rotation of the test blade, the influence of different motion states on the detection results is reduced. This wind turbine blade production detector uses the method of installing the test blade on the central shaft and driving it to rotate, simulating the rotation state of the test blade in actual working conditions to ensure the accuracy of the detection results, and cooperating with the dynamic detection mechanism installed on the inner surface of the function ring to achieve real-time detection, further improving the accuracy of the detection.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blade production, and specifically to a wind turbine blade production detector and its working method. Background Technique

[0002] With the continuous growth of the global demand for clean energy, wind power generation, as a renewable and pollution-free way of obtaining energy, has been widely applied and developed rapidly. The blades of wind turbines are one of the key components in the wind power generation system, and their performance and quality directly affect the efficiency and stability of the entire wind power generation system. In the production process of wind turbine blades, it is crucial to ensure that the quality and performance of the blades meet strict standards. However, there are many deficiencies in the existing detection technologies and means. Traditional detection methods often rely on manual visual inspection and simple measuring tools. This method is not only inefficient, but also it is difficult to guarantee the accuracy and reliability of the detection results. In the production process of wind turbine blades, it is crucial to ensure that the blades have sufficient strength to withstand complex wind conditions and fatigue stresses during long-term operation. However, there are many deficiencies in the existing detection means and technologies.

[0003] Traditional strength detection methods such as ultrasonic detection and X-ray detection can detect without damaging the blades, but they have problems such as limited detection accuracy, complex operation, and low detection efficiency. Due to the complex shape and structure of wind turbine blades, existing detection technologies often have detection blind spots when detecting different parts of the blades, and it is impossible to comprehensively and accurately evaluate the strength of the blades. At the same time, since the blades of wind turbines are often in a dynamic working environment, the compressive strength detected for wind turbine blades under static conditions is not exactly the same as the compressive strength under the actual working state, which also results in inaccurate detection results. Summary of the Invention

[0004] The purpose of the present invention is to provide a wind turbine blade production detector and its working method to solve the problem of inaccurate detection results caused by the difference between static detection and actual working conditions mentioned in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A wind turbine blade production detector includes a test stand. One end of the test stand is fixedly provided with a support frame, and a rotating central shaft is installed at the upper end of the support frame. A test blade is fixedly installed on the outer surface of the central shaft through bolts. A support rod is fixedly provided on the outer surface of the central shaft, and a function ring is fixedly provided at the end of the support rod away from the central shaft. A dynamic detection mechanism is arranged on the inner surface of the function ring. By detecting during the rotation of the test blade, the influence of different motion states on the detection results is reduced.

[0006] Preferably, the dynamic detection mechanism includes: a mounting frame, which is fixedly arranged on the inner surface of the functional ring, and a guide rail is fixedly arranged on the surface of the mounting frame, and a sliding sliding seat is installed on the outer surface of the guide rail, displacement wheels are rotatably installed on both ends of the sliding seat, and displacement motors are fixedly installed on both ends of the sliding seat, and the output shaft of the displacement motor is rotatably connected to the opposite displacement wheel shaft, a test seat is rotatably installed on one end of the sliding seat, and a rotatable detection plate and a knocking plate are installed on the outer surfaces of both sides of the test seat, a detection motor and a knocking motor are fixedly installed on the outer surface of the test seat, an angular displacement sensor is fixedly installed on the outer surface of one end of the test seat opposite to the detection plate shaft, and a switching motor is fixedly installed on the outer surface of the lower end of the sliding seat.

[0007] By adopting the above technical solution, the blades of the wind turbine generator can be detected in a moving state.

[0008] Preferably, the outer surface of the displacement wheel is in contact with the outer surface of the guide rail, the two ends of the rotating shaft of the detection plate are respectively fixedly connected to the output shaft of the detection motor and the input shaft of the angular displacement sensor, the knocking plate drives one end of the rotating shaft to be fixedly connected to the output shaft of the knocking motor, and one end of the output shaft of the switching motor is in contact with the outer surface of the test seat.

[0009] The above technical solution is adopted to achieve the purpose of driving the knocking plate and the detection plate to face the test blade respectively.

[0010] Preferably, a timely switching mechanism is provided at the upper end of the test frame on one side of the central rotating shaft, and the switching of the stress state of the test blade is achieved by changing the driving state of the central rotating shaft.

[0011] By adopting the above technical solution, the test blade can use inertia to drive the central shaft to rotate.

[0012] Preferably, the timely switching mechanism includes: a connecting shaft, the connecting shaft is fixedly connected to one end of the central rotating shaft, and a rotating shaft is snap-fittedly installed at one end of the connecting shaft, a clearance groove is provided on the outer surface of one end of the rotating shaft located inside the connecting shaft, and a contact wheel is slidably installed at one end of the rotating shaft located outside the connecting shaft, an electric push rod, a power motor and a load generator are fixedly installed on the upper surface of the test frame, one end of the output shaft of the power motor is fixedly connected to a connecting disk, and one end of the connecting disk is slidably installed with a connecting gear, and one end of the output shaft of the load generator is fixedly connected to a load gear.

[0013] By adopting the above technical solution, the load generator can simulate the deceleration state of the central rotating shaft in actual working conditions.

[0014] Preferably, a spring is connected between the connecting shaft and the middle rotating shaft, the middle rotating shaft and the contact wheel are concentrically arranged, and tooth blocks are arranged on the outer surfaces of both the contact wheel and the middle rotating shaft.

[0015] With the above technical solution, when the contact wheel fails to engage smoothly with the load gear, it can slide relative to the middle rotating shaft.

[0016] Preferably, one end of the electric push rod penetrates through the outer surfaces at both ends of the contact wheel, and the end of the electric push rod located inside the middle rotating shaft is rotatably connected to the middle rotating shaft.

[0017] With the above technical solution, the electric push rod can drive the middle rotating shaft to slide to change the connection state with the power motor and the load generator.

[0018] Preferably, a spring is connected between the connection disk and the connection gear, and the connection gear is meshed with the middle rotating shaft.

[0019] With the above technical solution, when the connection gear fails to engage smoothly with the middle rotating shaft, it can slide relative to the connection disk.

[0020] Preferably, a sliding rod is fixedly arranged on the outer surface of the support rod, a rotating displacement rod is installed on the outer surface of the support rod, and an adjusting motor is fixedly installed on the outer surface of the support rod. Adjusting plates are installed on the outer surfaces of the sliding rod and the displacement rod, and counterweight blocks are fixedly arranged at both ends of the adjusting plate. The adjusting plate is slidably connected to the sliding rod and is threadedly connected to the displacement rod, and the rotating shaft of the displacement rod is fixedly connected to the output shaft of the adjusting motor.

[0021] With the above technical solution, the functional ring can maintain rotation for a certain period of time in a state without a driving source.

[0022] A working method of a production detector for wind turbine blades, the working method includes the following steps:

[0023] S1. Fix and install the test blade on the outer surface of the central rotating shaft;

[0024] S2. The power motor drives the central rotating shaft to rotate. At this time, the electric push rod starts to drive the connection between the central rotating shaft and the input shaft of the load generator to drive the load gear to rotate, and the actual working condition is simulated through the connection of the load generator.

[0025] S3. The displacement motor starts to drive the movement on the surface of the sliding seat guide rail;

[0026] S4. The switching motor, the detection motor and the knocking motor are alternately started to drive the knocking plate and the detection plate to knock and detect the deformation of the test blade;

[0027] S5. The angular displacement sensor monitors and records the angular displacement of the detection board, and calculates the deformation of the test blade after being impacted through the data difference of the angular displacement sensor in two consecutive times.

[0028] S6. When the rotational speed of the functional ring drops, start the regulating motor to drive the regulating plate and the counterweight to slide on the sliding rod towards the central rotating shaft, and use the law of conservation of angular momentum to enable the functional ring to rotate at a certain speed for a certain period of time during the test process.

[0029] Compared with the prior art, the beneficial effects of the present invention are: This production detector for wind turbine blades:

[0030] 1. Adopt the method of installing the test blade on the central rotating shaft and driving it to rotate to simulate the rotating state of the test blade in actual working conditions to ensure the accuracy of the detection results. Cooperate with the dynamic detection mechanism installed on the inner surface of the functional ring to achieve real-time detection and further improve the detection accuracy.

[0031] Furthermore, adopt the method of disconnecting the connection between the functional ring and the power motor after reaching the predetermined rotational speed, so that the relative motion state between the test blade and the central rotating shaft is switched to the test blade driving the central rotating shaft to rotate, thereby achieving the purpose of simulating the actual working conditions and avoiding abnormal detection results caused by different force directions at the end of the test blade.

[0032] Even further, adopt the method of the sliding seat moving on the guide rail, and utilize the design that the guide rail conforms to the surface shape of the test blade, so that the dynamic detection mechanism can maintain a relatively stable spacing during the rotation process to ensure the accuracy of the detection results.

[0033] 2. By means of the regulating plate and the counterweight moving towards the central rotating shaft during the process of the functional ring losing the power source, use the law of conservation of angular momentum to enable the functional ring to rotate at a certain speed for a certain period of time during the test process without being driven by an external power source, ensuring the smoothness of the detection process.

[0034] 3. Through the timely switching mechanism, realize the non-stop switching of the driving source of the functional ring when the rotational speed of the functional ring is insufficient, so that the functional ring can be coherently switched between being accelerated and decelerated to improve the overall detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present invention;

[0036] Figure 2 It is a schematic three-dimensional structure diagram of the test stand of the present invention connected to the electric push rod;

[0037] Figure 3 It is a schematic three-dimensional structure diagram of the connection between the regulating plate and the counterweight of the present invention;

[0038] Figure 4 Schematic three-dimensional structure diagram of the mounting bracket, guide rail and sliding seat connection of the present invention;

[0039] Figure 5 Schematic three-dimensional structure diagram of the sliding seat, displacement wheel and displacement motor connection of the present invention;

[0040] Figure 6 Schematic three-dimensional structure diagram of the connection between the sliding seat and the switching motor of the present invention;

[0041] Figure 7 Schematic three-dimensional structure diagram of the cross-sectional plane of the connection between the test seat and the detection board of the present invention;

[0042] Figure 8 Schematic three-dimensional structure diagram of the connection between the power motor, connection disk and connection gear of the present invention;

[0043] Figure 9 Schematic three-dimensional structure diagram of the cross-sectional plane of the connection between the connecting shaft and the middle rotating shaft of the present invention;

[0044] Figure 10 Schematic three-dimensional structure diagram of the connection between the connecting shaft and the relief groove of the present invention.

[0045] In the figure: 1, test stand; 2, support frame; 3, central rotating shaft; 4, test blade; 5, support rod; 6, functional ring; 7, mounting bracket; 8, guide rail; 9, sliding seat; 10, displacement wheel; 11, displacement motor; 12, test seat; 13, detection board; 14, detection motor; 15, angular displacement sensor; 16, percussion motor; 17, percussion plate; 18, switching motor; 19, connecting shaft; 20, middle rotating shaft; 21, relief groove; 22, contact wheel; 23, electric push rod; 24, power motor; 25, connection disk; 26, connection gear; 27, load generator; 28, load gear; 29, sliding rod; 30, displacement rod; 31, adjustment motor; 32, adjustment plate; 33, counterweight. Detailed implementation manners

[0046] 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.

[0047] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a production detector for wind turbine blades.

[0048] Embodiment 1: In this embodiment, a test stand 1 is disclosed. One end of the test stand 1 is fixedly provided with a support frame 2, and a rotating central rotating shaft 3 is installed at the upper end of the support frame 2. A test blade 4 is fixedly installed on the outer surface of the central rotating shaft 3 through bolts. A support rod 5 is fixedly provided on the outer surface of the central rotating shaft 3, and a function ring 6 is fixedly provided at one end of the support rod 5 away from the central rotating shaft 3. A dynamic detection mechanism is arranged on the inner surface of the function ring 6. By detecting during the rotation of the test blade 4, the influence of different motion states on the detection result is reduced;

[0049] The dynamic detection mechanism includes: a mounting frame 7, the mounting frame 7 is fixedly provided on the inner surface of the function ring 6, and a guide rail 8 is fixedly provided on the surface of the mounting frame 7. A sliding sliding seat 9 is installed on the outer surface of the guide rail 8. Displacement wheels 10 are rotatably installed at both ends of the sliding seat 9, and displacement motors 11 are fixedly installed at both ends of the sliding seat 9. The output shaft of the displacement motor 11 is rotationally connected to the rotating shaft of the opposite displacement wheel 10. A test seat 12 is rotatably installed at one end of the sliding seat 9, and rotating detection plates 13 and knocking plates 17 are installed on the outer surfaces of both sides of the test seat 12. A detection motor 14 and a knocking motor 16 are fixedly installed on the outer surface of the test seat 12. An angular displacement sensor 15 is fixedly installed on the outer surface of one end of the test seat 12 opposite to the rotating shaft of the detection plate 13. A switching motor 18 is fixedly installed on the outer surface of the lower end of the sliding seat 9;

[0050] The outer surface of the displacement wheel 10 is fitted with the outer surface of the guide rail 8. The two ends of the rotating shaft of the detection plate 13 are respectively fixedly connected to the output shaft of the detection motor 14 and the input shaft of the angular displacement sensor 15. One end of the rotating shaft driven by the knocking plate 17 is fixedly connected to the output shaft of the knocking motor 16. One end of the output shaft of the switching motor 18 is fitted with the outer surface of the test seat 12;

[0051] During the inspection, the test blade 4 is first fixed to the outer surface of the central shaft 3 at the upper end of the support frame 2 by bolts. When the functional ring 6 and the test blade 4 are driven to rotate, the displacement motors 11 at both ends of the sliding seat 9 start to drive the displacement wheel 10 to rotate, so that the sliding seat 9 moves on the surface of the guide rail 8 on the mounting frame 7. When the sliding seat 9 moves to the specified position, the switching motor 18 drives the test seat 12 to rotate so that the detection plate 13 faces the edge surface of the test blade 4. Then the detection motor 14 starts to drive the detection plate 13 to rotate and contact with the test blade 4 and flip it to reset. At this time, the angular displacement sensor 15 monitors and records the angular displacement of the detection plate 13, and then The switching motor 18 drives the test seat 12 to rotate so that the knocking plate 17 faces the edge surface of the test blade 4, and then the knocking motor 16 starts to drive the knocking plate 17 to rotate, so that it collides with the test blade 4 and flips over to reset. The switching motor 18 drives the test seat 12 to rotate again so that the detection plate 13 faces the edge surface of the test blade 4, and then the detection motor 14 starts to drive the detection plate 13 to rotate, so that it contacts the test blade 4 and flips over to reset. At this time, the angular displacement sensor 15 monitors and records the angular displacement of the detection plate 13. The deformation of the test blade 4 after the impact is calculated through the data difference between the two previous and subsequent angular displacement sensors 15 to achieve the purpose of detecting the strength of the test blade 4.

[0052] Embodiment 2: Based on Embodiment 1, this embodiment discloses that a timely switching mechanism is provided at the upper end of the test frame 1 on one side of the central rotating shaft 3, and the switching of the stress state of the test blade 4 is achieved by changing the driving state of the central rotating shaft 3;

[0053] The timely switching mechanism includes: a connecting shaft 19, the connecting shaft 19 is fixedly connected to one end of the central rotating shaft 3, and a rotating shaft 20 is mounted on one end of the connecting shaft 19, a clearance groove 21 is provided on the outer surface of one end of the rotating shaft 20 located inside the connecting shaft 19, and a contact wheel 22 is slidably mounted on one end of the rotating shaft 20 located outside the connecting shaft 19, an electric push rod 23, a power motor 24 and a load generator 27 are fixedly mounted on the upper surface of the test stand 1, one end of the output shaft of the power motor 24 is fixedly connected to a connecting disk 25, and one end of the connecting disk 25 is slidably mounted with a connecting gear 26, and one end of the output shaft of the load generator 27 is fixedly connected to a load gear 28;

[0054] A spring is connected between the connecting shaft 19 and the rotating shaft 20, and the rotating shaft 20 and the contact wheel 22 are concentrically arranged, and the outer surfaces of the contact wheel 22 and the rotating shaft 20 are both provided with tooth blocks;

[0055] One end of the electric push rod 23 penetrates through the outer surfaces of both ends of the contact wheel 22, and one end of the electric push rod 23 located inside the rotating shaft 20 is rotatably connected to the rotating shaft 20;

[0056] A spring is connected between the connection disk 25 and the connection gear 26, and the connection gear 26 is meshed with the middle rotating shaft 20;

[0057] During the process of driving the central rotating shaft 3 to rotate, the power motor 24 at the upper end of the test stand 1 is started. The power motor 24 drives the middle rotating shaft 20 to rotate through the connection disk 25 and the connection gear 26 meshing with the middle rotating shaft 20. The middle rotating shaft 20 drives the central rotating shaft 3 to rotate through the engagement with the connection shaft 19, so as to drive the function ring 6 to rotate through the support rod 5. When the rotation speed of the function ring 6 reaches the standard, at this time, the electric push rod 23 is started to drive the middle rotating shaft 20 to slide relative to the connection shaft 19 until the middle rotating shaft 20 drives the load gear 28 to rotate through the engagement of the contact wheel 22 with the load gear 28 to drive the input shaft of the load generator 27 to rotate. When the contact wheel 22 is not accurately engaged with the load gear 28, at this time, the contact wheel 22 is pressed and slides relative to the middle rotating shaft 20 until the contact wheel 22 is engaged with the load gear 28 and slides back to its original position under the support of the spring between it and the middle rotating shaft 20. When the rotation speed of the function ring 6 is stable, the electric push rod 23 continues to drive the middle rotating shaft 20 to slide, so that the middle rotating shaft 20 can disengage from the engagement with the connection gear 26 through the relief groove 21, so that the central rotating shaft 3 can drive the load gear 28 to rotate through the connection of the load generator 27 to simulate the actual working condition. When the rotation speed of the function ring 6 is insufficient, at this time, the electric push rod 23 drives the middle rotating shaft 20 to slide towards the connection shaft 19. At this time, the connection gear 26 resumes the engagement with the middle rotating shaft 20. When the connection gear 26 is not accurately engaged with the negative middle rotating shaft 20, at this time, the connection gear 26 is pressed and slides relative to the connection disk 25 until the connection gear 26 is engaged with the middle rotating shaft 20 and slides back to its original position under the support of the spring between it and the connection disk 25.

[0058] Embodiment 3: On the basis of Embodiment 1 and Embodiment 2, this embodiment discloses that a sliding rod 29 is fixedly arranged on the outer surface of the support rod 5, and a rotating displacement rod 30 is installed on the outer surface of the support rod 5. And an adjusting motor 31 is fixedly installed on the outer surface of the support rod 5. Adjusting plates 32 are installed on the outer surfaces of the sliding rod 29 and the displacement rod 30, and counterweight blocks 33 are fixedly arranged at both ends of the adjusting plate 32. The adjusting plate 32 is slidably connected with the sliding rod 29, and the adjusting plate 32 is threadedly connected with the displacement rod 30. And the rotating shaft of the displacement rod 30 is fixedly connected with the output shaft of the adjusting motor 31;

[0059] As the rotation speed of the function ring 6 drops, the adjusting motor 31 is started to drive the adjusting plate 32 and the counterweight block 33 to slide towards the central rotating shaft 3 on the sliding rod 29 by using the threaded connection between the displacement rod 30 and the adjusting plate 32. By using the law of conservation of angular momentum, the function ring 6 can rotate at a certain speed for a certain period of time during the test without the drive of an external power source, ensuring the smoothness of the detection process.

[0060] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production detector for wind turbine blades, comprising a test stand (1), one end of the test stand (1) is fixedly provided with a support frame (2), and a rotating central rotating shaft (3) is installed at the upper end of the support frame (2). A test blade (4) is fixedly installed on the outer surface of the central rotating shaft (3) by bolts, and it is characterized in that: A support rod (5) is fixedly arranged on the outer surface of the central rotating shaft (3), and a functional ring (6) is fixedly arranged at one end of the support rod (5) away from the central rotating shaft (3). A dynamic detection mechanism is arranged on the inner surface of the functional ring (6), and by detecting during the rotation of the test blade (4), the influence of different motion states on the detection result is reduced; A sliding rod (29) is fixedly arranged on the outer surface of the support rod (5), a rotating displacement rod (30) is installed on the outer surface of the support rod (5), and an adjusting motor (31) is fixedly installed on the outer surface of the support rod (5). An adjusting plate (32) is installed on the outer surfaces of the sliding rod (29) and the displacement rod (30), and counterweight blocks (33) are fixedly arranged at both ends of the adjusting plate (32). The adjusting plate (32) is slidably connected with the sliding rod (29), the adjusting plate (32) is threadedly connected with the displacement rod (30), and the rotating shaft of the displacement rod (30) is fixedly connected with the output shaft of the adjusting motor (31).

2. The production detector for a wind turbine blade according to claim 1, characterized in that: The dynamic detection mechanism includes: a mounting frame (7), the mounting frame (7) is fixedly arranged on the inner surface of the functional ring (6), a guide rail (8) is fixedly arranged on the surface of the mounting frame (7), and a sliding sliding seat (9) is installed on the outer surface of the guide rail (8). Displacement wheels (10) are rotatably installed at both ends of the sliding seat (9), displacement motors (11) are fixedly installed at both ends of the sliding seat (9), and the output shaft of the displacement motor (11) is rotatably connected with the rotating shaft of the opposite displacement wheel (10). A test seat (12) is rotatably installed at one end of the sliding seat (9), and rotating detection plates (13) and knocking plates (17) are installed on the outer surfaces of both sides of the test seat (12). A detection motor (14) and a knocking motor (16) are fixedly installed on the outer surface of the test seat (12). An angular displacement sensor (15) is fixedly installed on the outer surface of one end of the test seat (12) opposite to the rotating shaft of the detection plate (13). A switching motor (18) is fixedly installed on the outer surface of the lower end of the sliding seat (9).

3. A production detector for a wind turbine blade according to claim 2, characterized in that: The outer surface of the displacement wheel (10) is attached to the outer surface of the guide rail (8), the two ends of the rotating shaft of the detection plate (13) are respectively fixedly connected with the output shaft of the detection motor (14) and the input shaft of the angular displacement sensor (15), one end of the rotating shaft driven by the knocking plate (17) is fixedly connected with the output shaft of the knocking motor (16), and one end of the output shaft of the switching motor (18) is attached to the outer surface of the test seat (12).

4. A production detector for a wind turbine blade according to claim 1, characterized in that: A timely switching mechanism is arranged at the upper end of the test frame (1) on one side of the central rotating shaft (3), and by changing the driving state of the central rotating shaft (3), the force state of the test blade (4) is switched.

5. A production detector for wind turbine blades according to claim 4, characterized in that: The timely switching mechanism comprises: a connecting shaft (19), the connecting shaft (19) being fixedly connected to one end of the central rotating shaft (3), and a central rotating shaft (20) being mounted on one end of the connecting shaft (19), a clearance groove (21) being provided on the outer surface of one end of the central rotating shaft (20) located inside the connecting shaft (19), and a contact wheel (22) being slidably mounted on one end of the central rotating shaft (20) located outside the connecting shaft (19), an electric push rod (23), a power motor (24) and a load generator (27) being fixedly mounted on the upper surface of the test stand (1), a connecting disk (25) being fixedly connected to one end of the output shaft of the power motor (24), and a connecting gear (26) being slidably mounted to one end of the connecting disk (25), and a load gear (28) being fixedly connected to one end of the output shaft of the load generator (27).

6. The production detector for a wind turbine blade according to claim 5, wherein: A spring is connected between the connecting shaft (19) and the rotating shaft (20), the rotating shaft (20) and the contact wheel (22) are arranged concentrically, and tooth blocks are arranged on the outer surfaces of the contact wheel (22) and the rotating shaft (20).

7. A production detector for wind turbine blades according to claim 5, characterized in that: One end of the electric push rod (23) penetrates through the outer surfaces of both ends of the contact wheel (22), and one end of the electric push rod (23) located inside the central rotating shaft (20) is rotatably connected to the central rotating shaft (20).

8. A production detector for a wind turbine blade according to claim 5, characterized in that: A spring is connected between the connecting disk (25) and the connecting gear (26), and the connecting gear (26) is meshingly connected to the rotating shaft (20).

9. The working method of a production detector for a wind turbine blade according to any one of claims 1-8, characterized in that: The working method comprises the following steps: S1. The test blade (4) is fixedly mounted on the outer surface of the central shaft (3); S2. The power motor (24) drives the central shaft (3) to rotate. At this time, the electric push rod (23) starts to drive the central shaft (3) to connect with the input shaft of the load generator (27) to drive the load gear (28) to rotate, and the actual working condition is simulated by connecting the load generator (27); S3. The displacement motor (11) is started to drive the sliding seat (9) and the guide rail (8) to move on the surface; S4. The switching motor (18), the detection motor (14) and the knocking motor (16) are alternately started to drive the knocking plate (17) and the detection plate (13) to knock and detect the deformation of the test blade (4); S5. The angular displacement sensor (15) monitors and records the angular displacement of the detection plate (13), and calculates the deformation of the test blade (4) after being impacted by the difference in data from the angular displacement sensor (15) twice before and after; S6. The speed of the functional ring (6) decreases, and the regulating motor (31) is started to drive the regulating plate (32) and the counterweight (33) to slide on the sliding rod (29) toward the central rotating shaft (3). The law of conservation of angular momentum is used to enable the functional ring (6) to maintain a certain speed of rotation for a certain period of time during the test.

Images