Wind power blade detection device and detection method thereof

Abstract

The invention relates to the technical field of wind power blade detection, in particular to a wind power blade detection device and a detection method thereof. The wind power blade detection device provided by the invention comprises a power mechanism and a detection mechanism arranged on the power mechanism. The power mechanism comprises a power body, a power assembly and a medium storage piece, wherein the power assembly and the medium storage piece are arranged on the power body. The power assembly is used for moving on the to-be-detected face of the main beam. The detection mechanism comprises a detection assembly, a connecting assembly and a medium spraying assembly, the detection assembly is connected with the power body through the connecting assembly, and the detection assembly is arranged on one side of the moving direction of the power assembly; the medium spraying assembly is connected with the medium storage part and is used for spraying a coupling agent to the to-be-detected surface. According to the wind power blade detection device provided by the invention, the integration collaboration and the automation degree can be improved, and the working efficiency is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbine blade detection, and in particular to a wind turbine blade detection device and a detection method thereof. Background Art

[0002] Wind turbine blades are the core components of wind turbines, used to capture wind energy and convert it into mechanical energy, which is then converted into electrical energy through the generator in the wind turbine. Wind turbine blades usually include a shell and a main beam located inside the shell. The main beam is the main skeleton structure of the wind turbine blade and provides the necessary support and rigidity for the wind turbine blade. In order to ensure the normal use of wind turbine blades, the main beam must be quality tested after it is manufactured.

[0003] In the related art, the main beam is usually inspected by manually controlling the ultrasonic inspection equipment to move on the main beam surface and manually spraying coupling agent on the main beam surface. However, the above-mentioned method of inspecting the main beam of the blade has the problems of poor integration and coordination and low working efficiency. Summary of the invention

[0004] The present application provides a wind turbine blade detection device and a detection method thereof, which are used to solve the problems of poor integration and coordination and low working efficiency in the current main beam detection method.

[0005] In order to achieve the above purpose, the technical solution of this application is as follows:

[0006] On the one hand, the present application provides a wind turbine blade detection device for detecting the main beam of a wind turbine blade, the wind turbine blade detection device comprising: a power mechanism, the power mechanism comprising a power body and a power component and a medium storage component arranged on the power body, the power component being used to move on the surface to be detected of the main beam; a detection mechanism, arranged in the power mechanism, the detection mechanism comprising a detection component, a connecting component and a medium spraying component, the detection component being connected to the power body via the connecting component, the detection component being arranged on one side of the moving direction of the power component; the medium spraying component being connected to the medium storage component, the medium spraying component being used to spray a coupling agent onto the surface to be detected.

[0007] In a possible implementation, in the wind turbine blade detection device provided by the present application, the connection component includes a flexible connector; the detection component includes a plurality of detection units, each detection unit is connected to the flexible connector, and there is a predetermined gap between each detection unit.

[0008] In a possible implementation, in the wind turbine blade detection device provided by the present application, a plurality of detection units are arranged side by side in the same direction, and the detection units include ultrasonic detection components.

[0009] In a possible implementation, the wind turbine blade detection device provided in the present application, the connection assembly also includes a first connection bracket and at least two pressure retaining members, the first connection bracket is connected to the power body; the at least two pressure retaining members are arranged at intervals, and the pressure retaining members are connected between the first connection bracket and the flexible connection member.

[0010] In a possible implementation, in the wind turbine blade detection device provided by the present application, a plurality of pressure retaining members are arranged side by side in the same direction, and the pressure retaining members include at least one of an elastic member and a telescopic cylinder.

[0011] In a possible implementation, the wind turbine blade detection device provided by the present application, the medium spraying assembly includes a medium extraction member and a medium spraying member connected to the medium extraction member, the medium extraction member is connected to the medium storage member to extract the coupling agent in the medium storage member; the spraying end of the medium spraying member extends a predetermined length in a first direction.

[0012] In one possible implementation, the wind turbine blade detection device provided in the present application, the power assembly includes a driving member and a moving member, the driving member is arranged on the power body, the moving member is located at the bottom of the power body, the driving member is connected to the moving member and drives the moving member to rotate, so that the wind turbine blade detection device as a whole moves on the surface to be detected.

[0013] In a possible implementation, the wind turbine blade detection device provided in the present application further includes a guide mechanism, which is fixedly connected to the connecting assembly and is used to limit the moving path of the guide moving member.

[0014] In one possible implementation, the wind turbine blade detection device provided in the present application, the guide mechanism includes a bracket assembly and a roller assembly arranged in pairs, the bracket assembly is fixedly connected to the connecting assembly; the roller assemblies arranged in pairs are respectively located at both ends of the bracket assembly, and each roller assembly is rotatably connected to the bracket assembly.

[0015] In one possible implementation, the wind turbine blade detection device provided in the present application, the bracket assembly includes a second connecting bracket and limit brackets respectively located at both ends of the second connecting bracket, the second connecting bracket is fixedly connected to the connecting assembly; at least one limit bracket is movably connected to the second connecting bracket so that the distance between the limit brackets located at both ends of the second connecting bracket is adjustable.

[0016] In one possible implementation, the wind turbine blade detection device provided by the present application, the roller assembly includes a first roller and at least one second roller, the first roller and the second roller are both rotatably connected to the limit bracket, the rotation axis of the first roller extends along the first direction, and the rotation axis of the second roller extends along the second direction, wherein the moving direction, the first direction and the second direction intersect each other.

[0017] In a possible implementation, in the wind turbine blade detection device provided by the present application, the power mechanism, a part of the medium spraying assembly, the detection assembly and the guide mechanism are arranged in sequence along the moving direction.

[0018] On the other hand, the present application provides a detection method for detecting a main beam of a wind turbine blade, comprising:

[0019] Providing the above-mentioned wind turbine blade detection device;

[0020] Match the wind turbine blade detection device with the surface to be detected of the main beam, and make the detection component fit the surface to be detected;

[0021] Control the medium spraying component of the wind turbine blade detection device to spray the coupling agent onto the surface to be detected, control the power mechanism to drive the wind turbine blade detection device to move along the main beam as a whole, and use the detection component to synchronously obtain the target information of the surface to be detected;

[0022] The target result is obtained according to the deviation between the target information and the theoretical information, and the target result includes at least one of the defect position, defect type, defect depth and defect range of the surface to be detected.

[0023] The wind turbine blade detection device provided in the embodiment of the present application is used to detect the main beam of the wind turbine blade. The wind turbine blade detection device integrates a power mechanism and a detection mechanism. The power mechanism includes a power component and a medium storage component arranged on the power body. By setting the power component, the power mechanism can move automatically during the detection process, thereby driving the detection mechanism to move, so as to realize the self-operation detection of the wind turbine blade detection device on the surface to be detected. By setting the medium storage component, the medium such as the coupling agent required in the detection process can be stored. The detection mechanism includes a detection component, a connection component and a medium spraying component. The detection component is connected to the power component through the connection component. Under the drive of the power component, the detection component can automatically run to detect the entire area of ​​the surface to be detected. The medium spraying component is connected to the medium storage component. The medium spraying component is used to extract the coupling agent in the medium storage component and spray the coupling agent on the surface to be detected. In this way, the friction force of the detection process is reduced and the detection accuracy of the detection component is improved. By setting the power mechanism and the detection mechanism connected to the power mechanism, the functions of moving, detecting and spraying the coupling agent can be integrated, the integrated coordination and automation degree can be improved, and the work efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of the structure of a wind turbine blade detection device provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the process of the detection method provided in the embodiment of the present application.

[0027] Description of reference numerals:

[0028] 10-main beam; 11-surface to be tested;

[0029] 20- Wind turbine blade detection device;

[0030] 100-power mechanism;

[0031] 110-power body;

[0032] 120-power assembly; 121-driving member; 122-moving member;

[0033] 130- medium storage element;

[0034] 200-testing agency;

[0035] 210-detection component; 211-detection unit;

[0036] 220-connection assembly; 221-flexible connection member; 222-first connection bracket; 223-pressure retaining member;

[0037] 230 - medium spraying assembly; 231 - medium extraction member; 232 - medium spraying member;

[0038] 300-Guide mechanism;

[0039] 310-bracket assembly; 311-second connecting bracket; 312-limiting bracket; 313-fixing member;

[0040] 320-roller assembly; 321-first roller; 322-second roller;

[0041] X-movement direction; Y-first direction; Z-second direction.

[0042] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiment of the present application. Obviously, the described embodiment is only a part of the embodiment of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0044] It should be noted that in the description of the embodiments of the present application, terms such as "upper", "lower", "inside" and "outside" indicating orientation or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present application.

[0045] In addition, it should be noted that the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0046] In this application, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] Wind turbine blades are the core components of wind turbines, used to capture wind energy and convert it into mechanical energy, which is then converted into electrical energy through the generator in the wind turbine. Wind turbine blades usually include an outer shell and a main beam located inside the outer shell. The main beam, as the main skeleton structure of the wind turbine blade, provides the necessary support and rigidity for the wind turbine blade, ensuring that the wind turbine blade can remain stable in harsh environments such as strong winds, and can effectively capture wind energy and convert it into electrical energy during rotation. In order to ensure the normal use of wind turbine blades and avoid problems such as structural failure or performance degradation during use, the main beam must be quality inspected after it is manufactured to promptly detect and eliminate potential quality defects.

[0048] In the related technology, the staff needs to hold the ultrasonic detection equipment and move it carefully along the surface of the main beam to ensure that the equipment can detect all parts of the main beam. In addition, the staff also needs to manually spray the coupling agent on the surface of the main beam to realize the detection of the main beam.

[0049] However, the above-mentioned method of detecting the main beam has the problems of poor integration and coordination and low working efficiency.

[0050] In view of this, the wind turbine blade detection device provided in the embodiment of the present application is used to detect the main beam of the wind turbine blade. The wind turbine blade detection device integrates a power mechanism and a detection mechanism. The power mechanism includes a power component and a medium storage component arranged on the power body. By setting the power component, the power mechanism can move automatically during the detection process, thereby driving the detection mechanism to move, so as to realize the self-operation detection of the wind turbine blade detection device on the surface to be detected. By setting the medium storage component, the medium such as the coupling agent required in the detection process can be stored. The detection mechanism includes a detection component, a connection component and a medium spraying component. The detection component is connected to the power component through the connection component. Under the drive of the power component, the detection component can automatically run to detect the entire area of ​​the surface to be detected. The medium spraying component is connected to the medium storage component. The medium spraying component is used to extract the coupling agent in the medium storage component and spray the coupling agent on the surface to be detected. In this way, the friction force of the detection process is reduced, and the detection accuracy of the detection component is improved. By setting the power mechanism and the detection mechanism connected to the power mechanism, the functions of moving, detecting and spraying the coupling agent can be integrated, the integrated coordination and automation degree can be improved, and the work efficiency can be improved.

[0051] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] On the one hand, see Figure 1 The present application provides a wind turbine blade detection device 20 for detecting a main beam 10 of a wind turbine blade. The wind turbine blade detection device 20 may include a power mechanism 100 and a detection mechanism 200.

[0053] The power mechanism 100 may include a power body 110 and a power assembly 120 and a medium storage element 130 disposed on the power body 110. The power assembly 120 is used to move on the to-be-detected surface 11 of the main beam 10.

[0054] In a specific implementation, part of the power component 120 is located at the bottom of the power body 110 and contacts the surface to be inspected 11 of the main beam 10 to achieve flexible movement on the surface to be inspected 11. The power component 120 includes but is not limited to the motor drive mode, the telescopic part drive mode, etc. It can be directly or indirectly connected to the power body 110 to drive the power body 110 to move along the surface to be inspected 11. The mobility of the power component 120 enhances the coverage of the wind turbine blade detection device 20, ensures the full area detection of the surface to be inspected 11, avoids missed detection and repeated detection, improves the automation degree of the wind turbine blade detection device 20, and improves the detection efficiency. The medium storage component 130 is used to store the coupling agent required in the detection process, providing a material basis for subsequent detection steps. Optionally, the medium storage member 130 may be a medium storage box embedded in the power body 110. Optionally, a sealing cover may be provided on the medium storage box, and the sealing cover may be detachably connected to the medium storage box, so that it is convenient for the staff to inject the coupling agent into the medium storage box, and the sealing cover may be provided on the medium storage box to prevent the coupling agent and other media from being contaminated by the external environment during the storage process. Of course, the structure of the medium storage member 130 is not limited in this embodiment, and the purpose is to achieve the storage of the coupling agent.

[0055] The detection mechanism 200 is disposed on the power mechanism 100, and the detection mechanism 200 may include a detection component 210, a connection component 220, and a medium spraying component 230. The detection component 210 is connected to the power body 110 through the connection component 220, and the detection component 210 is disposed on one side of the moving direction X of the power component 120. The medium spraying component 230 is connected to the medium storage component 130, and the medium spraying component 230 is used to spray a coupling agent onto the surface to be detected 11.

[0056] The detection component 210 is used to detect the surface to be detected 11, and the detection component 210 may include at least one of an ultrasonic detection structure, an infrared detection structure, and an image shooting structure.

[0057] The detection component 210 can transmit the detection signal to the external processor, and the detection image and the detection result are obtained through the analysis of the external processor. In order to achieve a stable connection between the detection component 210 and the power body 110, the detection mechanism 200 is provided with a connection component 220, so that the detection component 210 can be stably and reliably fixed on the power body 110 during the detection process, avoiding detection errors caused by vibration or external force interference, and ensuring the lossless transmission of the detection signal and the reliability of the detection result.

[0058] It is understandable that the medium spraying assembly 230 is connected to the medium storage element 130 to form a medium supply and spraying system, so that the wind turbine blade detection device 20 can spray the coupling agent synchronously during the travel process, thereby improving the integrated coordination of the wind turbine blade detection device 20. Spraying the coupling agent helps to improve the coupling effect between the detection assembly 210 and the surface to be detected 11, thereby improving the sensitivity and accuracy of the detection, and can also reduce the friction during the detection process, while protecting the surface to be detected 11 from potential damage during the detection process.

[0059] It should be noted that, by providing a power mechanism 100 and a detection mechanism 200 connected to the power mechanism 100, the functions of movement, detection, and spraying coupling agent can be integrated to improve the integration coordination and automation level, thereby improving work efficiency.

[0060] See also Figure 1 In some embodiments, the connection component 220 may include a flexible connection member 221. The detection component 210 may include a plurality of detection units 211, each detection unit 211 is connected to the flexible connection member 221, and a predetermined gap is provided between each detection unit 211.

[0061] By adopting the flexible connector 221 , the detection assembly 210 can better adapt to various complex working environments, such as slight unevenness on the surface to be detected 11 , variable detection angles, and possible vibrations and impacts.

[0062] It is understandable that the structure of the flexible connector 221 may have a certain degree of deformation to adapt to the unevenness or slight changes between the detection unit 211 and the surface to be detected 11. In addition, the flexible connector 221 should maintain stable performance and not produce excessive deformation, so that the detection unit 211 and the surface to be detected 11 always keep in contact, ensuring the detection accuracy of the detection unit 211.

[0063] The flexible connector 221 may include one of a flexible stainless steel sheet and an elastic plastic sheet.

[0064] It should be noted that each detection unit 211 has an independent detection function to accurately detect different parts and defects of the surface 11 to be detected. Each detection unit 211 can be fixedly connected to the flexible connection member 221 or detachably connected. The fixed connection can be selected to ensure the physical connection stability between the detection units 211.

[0065] Exemplarily, the gap between the detection units 211 may be 0.5-1.5 mm, which is not limited in this embodiment. By setting a predetermined gap, the detection units 211 will not collide with each other and cause damage to the detection units 211 when adapting to the unevenness or slight changes on the surface 11 to be detected.

[0066] The number and layout of the detection units 211 are given for exemplary purposes only and can be set according to actual conditions, and are not limited in this embodiment.

[0067] See also Figure 1 In some embodiments, a plurality of detection units 211 are arranged side by side along the same direction, and the detection unit 211 may include an ultrasonic detection element.

[0068] The plurality of detection units 211 are arranged side by side in the same direction to achieve comprehensive and continuous monitoring of the surface to be detected 11, thereby enhancing the accuracy and coverage of the detection.

[0069] For example, the detection unit 211 can be an ultrasonic detection element, which works on the principle of ultrasonic emission and reception and has the characteristics of strong penetration and high detection sensitivity. By controlling the ultrasonic emission frequency, pulse width and receiving timing, the detection unit 211 can efficiently capture the reflected or transmitted signal from the surface 11 to be detected.

[0070] In addition, by using the ultrasonic detection component in conjunction with the coupling agent, the coupling agent can fill the tiny gap between the ultrasonic detection component and the surface 11 to be detected, thereby excluding air and reducing the reflection and refraction of ultrasonic waves between the media. In this way, the ultrasonic wave can be more effectively transmitted to the interior of the main beam 10, thereby improving the accuracy and efficiency of the detection.

[0071] See also Figure 1 In some embodiments, the connection assembly 220 may further include a first connection bracket 222 and at least two pressure retaining members 223 , and the first connection bracket 222 is connected to the power body 110 .

[0072] At least two pressure maintaining members 223 are arranged at intervals, and the pressure maintaining members 223 are connected between the first connecting bracket 222 and the flexible connecting member 221 .

[0073] In specific implementation, the first connecting bracket 222 can achieve a stable connection with the power body 110, and the first connecting bracket 222 can effectively withstand and transmit the movement from the power mechanism 100. In other words, when the power assembly 120 moves on the surface to be detected 11, the first connecting bracket 222 will move relative to the surface to be detected 11 driven by the power body 110, and then the first connecting bracket 222 will drive the flexible connecting member 221 to move in the moving direction X through the pressure retaining member 223, thereby realizing the movement of each detection unit 211 on the surface to be detected 11.

[0074] It should be noted that each pressure retaining member 223 is arranged between the first connecting bracket 222 and the flexible connecting member 221 in an interval arrangement, playing a supporting and fixing role. The pressure retaining member 223 can ensure stable pressure transmission and support effects during the detection process. Specifically, during the detection process, the flexible connecting member 221 will be moderately deformed when each detection unit 211 adapts to the unevenness or slight changes of the surface to be detected 11. In order to ensure that each detection unit 211 adapts to the surface to be detected 11 while taking into account the fit between the surface to be detected 11 to ensure the detection accuracy, each pressure retaining member 223 adapts to the moderate deformation of the flexible connecting member 221 while giving the flexible connecting member 221 a certain pressure, and then transmits the pressure to each detection unit 211 through the flexible connecting member 221 to ensure the fit between each detection unit 211 and the surface to be detected 11.

[0075] The number and layout of the pressure retaining members 223 are given for exemplary purposes only and can be set according to actual conditions, and are not limited in this application.

[0076] See also Figure 1 In some embodiments, a plurality of pressure retaining members 223 are arranged side by side in the same direction, and the pressure retaining members 223 may include at least one of an elastic member and a telescopic cylinder.

[0077] In specific implementation, the elastic member can be a spring or an elastic body, and the elastic body can be a rubber body or an air bag. The spring or elastic body can return to its original state after being acted upon by an external force through elastic restoring force, thereby achieving stable maintenance of pressure. On the other hand, the telescopic cylinder uses the hydraulic, pneumatic, and electric telescopic principles to control and adjust the pressure through the telescopic movement of the cylinder body.

[0078] By providing at least one of the elastic member and the telescopic cylinder, the pressure maintaining member 223 can meet the pressure maintaining requirement of the detection mechanism 200 and provide efficient and stable pressure support for the detection unit 211 .

[0079] See also Figure 1 In some embodiments, the medium spraying assembly 230 may include a medium extracting member 231 and a medium spraying member 232 connected to the medium extracting member 231, wherein the medium extracting member 231 is connected to the medium storage member 130 to extract the coupling agent in the medium storage member 130. The spraying end of the medium spraying member 232 extends in the first direction Y by a predetermined length.

[0080] The first direction Y may be selected as the width direction of the power mechanism 100 , and may also be understood as the width direction of the surface to be detected 11 .

[0081] It is understandable that the medium extraction member 231 is used to extract the required coupling agent from the medium storage member 130. Exemplarily, the medium extraction member 231 may include an extraction pump, but this embodiment is not limited thereto.

[0082] The medium spraying member 232 is provided to achieve uniform spraying of the coupling agent on the surface to be detected 11. Specifically, the medium spraying member 232 may include a pipeline connected to the medium extraction member 231, and the spraying end of the medium spraying member 232 receives the coupling agent extracted by the medium extraction member 231 through the pipeline, and the spraying end of the medium spraying member 232 extends a predetermined length in the first direction Y. The predetermined length may match the width of the surface to be detected 11, and the spraying end is disposed toward and close to the surface to be detected 11, so that the spraying end of the medium spraying member 232 covers the width of the surface to be detected 11, thereby improving the spraying efficiency and enabling the spraying operation to cover the surface to be detected 11 more uniformly.

[0083] Optionally, the spraying end of the medium spraying member 232 may be an atomizing nozzle, but this is of course not limited to this embodiment.

[0084] See also Figure 1 In some embodiments, the power assembly 120 may include a driving member 121 and a moving member 122, wherein the driving member 121 is disposed on the power body 110, and the moving member 122 is located at the bottom of the power body 110, and the driving member 121 is connected to the moving member 122 and drives the moving member 122 to rotate, so that the wind turbine blade detection device 20 moves as a whole on the surface to be detected 11.

[0085] Specifically, the driving member 121 is arranged on the power body 110 to ensure stable output and efficient transmission of the driving force. The moving member 122 is located at the bottom area of ​​the power body 110, so that the moving member 122 can directly contact the surface to be detected 11, thereby realizing the effective movement of the wind turbine blade detection device 20 on the surface to be detected 11.

[0086] The driving member 121 and the moving member 122 can be connected by transmission, and the driving member 121 generates a driving force and transmits the driving force to the moving member 122, so that the moving member 122 performs a rotational motion, thereby enabling the wind turbine blade detection device 20 to flexibly move on the surface to be detected 11. The self-movement of the wind turbine blade detection device 20 improves the detection work efficiency and ensures the comprehensiveness and accuracy of the detection process.

[0087] Optionally, the driving member 121 may be an electric motor, a hydraulic motor, or a pneumatic motor, and the moving member 122 may be a track-type moving member 122, a tire-type moving member 122, or the like.

[0088] See also Figure 1In some embodiments, the wind turbine blade detection device 20 may further include a guide mechanism 300 , which is fixedly connected to the connection assembly 220 , and is used to limit the moving path of the guide movable member 122 .

[0089] It is understandable that the guide mechanism 300 can contact the two opposite sides of the main beam 10 in the first direction Y, so as to effectively constrain the movement of the moving member 122 in the moving direction X and prevent the moving member 122 from deviating from the predetermined path, thereby ensuring the accuracy and consistency of the detection process and improving the reliability of the power mechanism 100 and the detection results.

[0090] See also Figure 1 In some embodiments, the guide mechanism 300 may include a bracket assembly 310 and a pair of roller assemblies 320, and the bracket assembly 310 is fixedly connected to the connecting assembly 220. The pair of roller assemblies 320 are respectively located at both ends of the bracket assembly 310, and each roller assembly 320 is rotatably connected to the bracket assembly 310.

[0091] The support assembly 310 serves as a supporting structure of the guide mechanism 300 , and is firmly connected to the connecting assembly 220 , thereby ensuring the stability and reliability of the guide mechanism 300 in the overall wind turbine blade detection device 20 .

[0092] Exemplarily, the roller assemblies 320 arranged in pairs are respectively placed at the two end positions of the bracket assembly 310. Such arrangement is conducive to realizing the limit of the moving member 122, and in addition, the linearity and continuity of the moving path are also ensured. Each roller assembly 320 is connected to the bracket assembly 310 in a rotating manner, so that the roller assembly 320 can be flexibly rotated with the movement of the moving member 122, thereby reducing the friction resistance during the movement.

[0093] In addition, the rotatability of the roller assembly 320 helps to extend the service life of the guide mechanism 300 and reduce the maintenance cost of the wind turbine blade detection device 20 .

[0094] See also Figure 1 In some embodiments, the bracket assembly 310 may include a second connection bracket 311 and position limiting brackets 312 respectively located at both ends of the second connection bracket 311, and the second connection bracket 311 is fixedly connected to the connection assembly 220. At least one position limiting bracket 312 is movably connected to the second connection bracket 311, so that the spacing between the position limiting brackets 312 located at both ends of the second connection bracket 311 is adjustable.

[0095] In specific implementation, the second connecting bracket 311 can be firmly connected to the first connecting bracket 222 by welding, fastener connection, etc. The second connecting bracket 311 is firmly connected to the first connecting bracket 222 to ensure the stability and reliability of the bracket assembly 310 and the wind turbine blade detection device 20 as a whole.

[0096] The limiting bracket 312 is used to install the roller assembly 320 to ensure that the moving member 122 can move smoothly and continuously along a predetermined path.

[0097] Exemplarily, at least one of the limiting brackets 312 and the second connecting bracket 311 is movably connected. This arrangement allows the spacing between the limiting brackets 312 at both ends of the second connecting bracket 311 to be flexibly adjusted according to actual conditions. By adjusting the spacing between the limiting brackets 312, the detection requirements of wind turbine blades of different sizes can be met, thereby further improving the practicality and flexibility of the guide mechanism 300.

[0098] Optionally, a plurality of first connection holes may be provided on the limit bracket 312, and at least one second connection hole may be provided on both ends of the second connection bracket 311. Before detection, the length of the limit bracket 312 extending relative to the second connection bracket 311 is adjusted according to the width of the wind turbine blade main beam 10, so that the width of the bracket assembly 310 matches the two opposite sides of the main beam 10 in the first direction Y, and then the fixing member 313 is sequentially passed through the second connection hole and one of the first connection holes corresponding to the second connection hole, so that the limit bracket 312 and the second connection bracket 311 are fixedly connected. Among them, the fixing member 313 may be a fixing pin. Of course, the specific structure of the limit bracket 312 and the second connection bracket 311 is not limited in this embodiment, and the purpose is to achieve a movable connection between the limit bracket 312 and the second connection bracket 311 to adapt to different widths of the main beam 10.

[0099] See also Figure 1 In some embodiments, the roller assembly 320 includes a first roller 321 and at least one second roller 322, the first roller 321 and the second roller 322 are both rotatably connected to the limiting bracket 312, the rotation axis of the first roller 321 extends along the first direction Y, and the rotation axis of the second roller 322 extends along the second direction Z, wherein the moving direction X, the first direction Y and the second direction Z intersect each other.

[0100] Among them, the second direction Z can be selected as the height direction of the power mechanism 100, and can also be understood as the thickness direction of the main beam 10.

[0101] Optionally, the moving direction X, the first direction Y and the second direction Z are perpendicular to each other.

[0102] In this embodiment, the rotation axis of the first roller 321 extends along the first direction Y, so that when the first roller 321 is driven by the power mechanism 100, it can roll smoothly along the moving direction X on the surface to be detected 11, thereby making the guide mechanism 300 move synchronously with the power mechanism 100.

[0103] It should be noted that the rotation axis of the second roller 322 extends along the second direction Z, so that the second roller 322 fits the side of the main beam 10, so that the second roller 322 can roll relative to the side of the main beam 10. The roller assembly 320 flexibly rotates with the movement of the moving member 122, thereby realizing the limiting and guiding effect of the guide mechanism 300 on the moving member 122, and reducing the friction resistance of the guide mechanism 300 during the movement.

[0104] The number and layout of the second rollers 322 are given for exemplary purposes only and can be set according to actual conditions, and are not limited in this embodiment.

[0105] See also Figure 1 In some embodiments, the power mechanism 100, the partial medium spraying assembly 230, the detection assembly 210 and the guide mechanism 300 are arranged in sequence along the moving direction X.

[0106] In specific implementation, the power mechanism 100 is located at the front end of the wind turbine blade detection device 20. The power mechanism 100 is used to drive the wind turbine blade detection device 20 to move as a whole, ensuring that the wind turbine blade detection device 20 can run smoothly according to the predetermined moving direction X and speed.

[0107] Further, a part of the medium spraying assembly 230, that is, the spraying end of the medium spraying member 232, can be arranged behind the power mechanism 100. During the detection process, the medium spraying member 232 sprays the coupling agent in real time to reduce the friction during the detection process. Then, the detection assembly 210 is arranged to detect the main beam 10 through the detection assembly 210.

[0108] Afterwards, the guide mechanism 300 may be disposed at the end of the wind turbine blade detection device 20 to ensure that the wind turbine blade detection device 20 can move stably along a predetermined path.

[0109] Based on the above embodiments, see Figure 2 The present application provides a detection method for detecting a main beam 10 of a wind turbine blade. The detection method may include the following steps:

[0110] Step S101: providing a wind turbine blade detection device 20 provided by any of the above embodiments.

[0111] Step S102 : the wind turbine blade detection device 20 is matched with the surface to be detected 11 of the main beam 10 , and the detection component 210 is made to fit with the surface to be detected 11 .

[0112] In the specific implementation, sufficient coupling agent is first added to the medium storage element 130 of the wind turbine blade detection device 20, and then the wind turbine blade detection device 20 is powered on. After the indicator light of the wind turbine blade detection device 20 shows normal, the staff places the wind turbine blade detection device 20 on the surface 11 to be detected of the main beam 10.

[0113] Step S103: Control the medium spraying assembly 230 of the wind turbine blade detection device 20 to spray coupling agent onto the surface to be detected 11 , control the power mechanism 100 to drive the wind turbine blade detection device 20 to move along the main beam 10 as a whole, and use the detection assembly 210 to synchronously obtain target information of the surface to be detected 11 .

[0114] Among them, after confirming that there is sufficient coupling agent in the wind turbine blade detection device 20, the wind turbine blade detection device 20 is started, and the power mechanism 100 drives the wind turbine blade detection device 20 to move as a whole along the main beam 10, so that the medium spraying component 230 sprays the coupling agent to the surface to be detected 11 in real time, and then the detection component 210 performs synchronous detection, and then transmits the target information to the external processor.

[0115] Step S104: Obtain a target result according to the deviation between the target information and the theoretical information, wherein the target result includes at least one of the defect position, defect type, defect depth, and defect range of the surface 11 to be inspected.

[0116] That is to say, when there are defects in the main beam 10, the external processor can obtain the target result through judgment and analysis, and can also provide a maintenance plan based on the target result for reference by the staff.

[0117] The target information can be understood as the ultrasonic signal obtained by the detection component 210 on the surface to be detected 11. When the detection component 210 transmits the detected ultrasonic signal to the external processor, the screen display changes (partially displayed in yellow or red), that is, there is a difference with the normal waveform, and it is determined that the detected part is abnormal. Then the external processor compares the theoretical information by calling up the theoretical information, which can be understood as comparing the abnormal waveform of the detected part with the normal waveform to determine the defect type (whitening, stacked resin, etc.), defect depth, defect location, and defect range.

[0118] In addition, a sensor may be provided at the front end of the power mechanism 100. When the wind turbine blade detection device 20 completes the detection of the surface to be detected 11, that is, when the sensor senses that the detection end point has been reached, the power mechanism 100 may stop moving and automatically shut down.

[0119] A detection method provided by an embodiment of the present application detects the main beam 10 of the wind turbine blade by using a wind turbine blade detection device 20, and then transmits the target information to an external processor through a detection component 210, and the external processor automatically analyzes and judges and outputs the target structure, thereby saving the manual judgment process and improving the detection efficiency and detection accuracy.

[0120] In some optional embodiments, when the detection device includes a guide mechanism 300, before step S103, the detection method also includes adjusting the length of the limiting bracket 312 of the wind turbine blade detection device 20 relative to the second connecting bracket 311 according to the width of the wind turbine blade main beam 10, so that the roller assembly 320 of the wind turbine blade detection device 20 is tightly fitted with the main beam 10, thereby realizing the guiding and limiting function of the guide mechanism 300 of the wind turbine blade detection device 20.

[0121] Before executing step S103 , it is confirmed that the detection component 210 is in contact with the surface to be detected 11 , and it is confirmed that the pressure retaining member 223 of the connecting component 220 can work normally.

[0122] The above arrangement ensures that the power mechanism 100 moves along a predetermined path under the guiding and limiting action of the guiding mechanism 300, avoids the wind turbine blade detection device 20 from deflecting, and enables the wind turbine blade detection device 20 to move and detect along the predetermined path by itself.

[0123] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A wind turbine blade detection device, used for detecting the main beam (10) of a wind turbine blade, characterized in that: The wind turbine blade detection device (20) comprises: A power mechanism (100), the power mechanism (100) comprising a power body (110), a power assembly (120) and a medium storage element (130) arranged on the power body (110), the power assembly (120) being used to move on the surface (11) to be detected of the main beam (10); A detection mechanism (200) is arranged on the power mechanism (100), the detection mechanism (200) comprises a detection component (210), a connection component (220) and a medium spraying component (230), the detection component (210) is connected to the power body (110) via the connection component (220), and the detection component (210) is arranged on one side of the moving direction (X) of the power component (120); The medium spraying assembly (230) is connected to the medium storage element (130), and the medium spraying assembly (230) is used to spray coupling agent onto the surface to be detected (11).

2. The wind turbine blade detection device according to claim 1, characterized in that: The connection assembly (220) comprises a flexible connection member (221); The detection assembly (210) comprises a plurality of detection units (211), each of the detection units (211) is connected to the flexible connection member (221), and a predetermined gap is provided between each of the detection units (211).

3. The wind turbine blade detection device according to claim 2, characterized in that: The plurality of detection units (211) are arranged side by side in the same direction, and the detection units (211) include ultrasonic detection elements.

4. The wind turbine blade detection device according to claim 2, characterized in that: The connection assembly (220) further comprises a first connection bracket (222) and at least two pressure retaining members (223), wherein the first connection bracket (222) is connected to the power body (110); At least two of the pressure retaining members (223) are arranged at intervals, and the pressure retaining members (223) are connected between the first connecting bracket (222) and the flexible connecting member (221).

5. The wind turbine blade detection device according to claim 4, characterized in that: The plurality of pressure retaining members (223) are arranged side by side in the same direction, and the pressure retaining members (223) include at least one of an elastic member and a telescopic cylinder.

6. The wind turbine blade detection device according to claim 1, characterized in that: The medium spraying assembly (230) comprises a medium extraction component (231) and a medium spraying component (232) connected to the medium extraction component (231); the medium extraction component (231) is connected to the medium storage component (130) to extract the coupling agent in the medium storage component (130); The spraying end of the medium spraying member (232) extends in the first direction (Y) by a predetermined length.

7. The wind turbine blade detection device according to any one of claims 1 to 6, characterized in that: The power assembly (120) comprises a driving member (121) and a moving member (122); the driving member (121) is arranged on the power body (110); the moving member (122) is located at the bottom of the power body (110); the driving member (121) is connected to the moving member (122) and drives the moving member (122) to rotate, so that the wind turbine blade detection device (20) moves as a whole on the surface to be detected (11).

8. The wind turbine blade detection device according to claim 7, characterized in that: The wind turbine blade detection device (20) further comprises a guide mechanism (300), wherein the guide mechanism (300) is fixedly connected to the connection assembly (220), and the guide mechanism (300) is used to limit and guide the moving path of the moving member (122).

9. The wind turbine blade detection device according to claim 8, characterized in that: The guide mechanism (300) comprises a support assembly (310) and roller assemblies (320) arranged in pairs, and the support assembly (310) is fixedly connected to the connection assembly (220); The roller assemblies (320) arranged in pairs are respectively located at two ends of the support assembly (310), and each roller assembly (320) is rotatably connected to the support assembly (310).

10. The wind turbine blade detection device according to claim 9, characterized in that: The bracket assembly (310) comprises a second connecting bracket (311) and limiting brackets (312) respectively located at two ends of the second connecting bracket (311), and the second connecting bracket (311) is fixedly connected to the connecting assembly (220); At least one of the limiting brackets (312) is movably connected to the second connecting bracket (311), so that the distance between the limiting brackets (312) located at both ends of the second connecting bracket (311) is adjustable.

11. The wind turbine blade detection device according to claim 10, characterized in that: The roller assembly (320) comprises a first roller (321) and at least one second roller (322), wherein the first roller (321) and the second roller (322) are both rotatably connected to the limiting bracket (312), the rotation axis of the first roller (321) extends along a first direction (Y), and the rotation axis of the second roller (322) extends along a second direction (Z), wherein the moving direction (X), the first direction (Y) and the second direction (Z) intersect each other.

12. The wind turbine blade detection device according to claim 8, characterized in that: The power mechanism (100), part of the medium spraying assembly (230), the detection assembly (210) and the guide mechanism (300) are arranged in sequence along the moving direction (X).

13. A detection method for detecting a main beam (10) of a wind turbine blade, characterized in that: include: Providing a wind turbine blade detection device (20) according to any one of claims 1 to 12; The wind turbine blade detection device (20) is matched with the surface to be detected (11) of the main beam (10), and the detection component (210) is made to fit with the surface to be detected (11); Controlling the medium spraying component (230) of the wind turbine blade detection device (20) to spray a coupling agent onto the surface to be detected (11), controlling the power mechanism (100) to drive the wind turbine blade detection device (20) to move as a whole along the main beam (10), and using the detection component (210) to synchronously acquire target information of the surface to be detected (11); A target result is obtained according to the deviation between the target information and the theoretical information, wherein the target result includes at least one of the defect position, defect type, defect depth and defect range of the surface (11) to be detected.

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