Wind power blade strain gauge pasting auxiliary device

Abstract

The utility model discloses a wind power blade strain gauge pasting auxiliary device which comprises a first face and a second face which are oppositely arranged, the first face and the second face share a first guide edge, a second guide edge, a first reference edge and a second reference edge, and an intersection point exists between the first guide edge and the second guide edge. The first guide edge and the second guide edge show the pasting angles of the corresponding strain gauges, so that an operator can simply and accurately determine the actual pasting directions of the strain gauges at the corresponding angles, the field operation difficulty of pasting the strain gauges of the wind power blade is greatly simplified, pasting errors are avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbine blade testing, and in particular to a wind turbine blade strain gauge pasting auxiliary device. Background Art

[0002] Nowadays, strain gauges in the field of wind turbine blade structure testing are mainly pasted manually, and the pasting process mainly needs to be carried out according to the position and angle required by the test outline.

[0003] However, for on-site manual pasting operations, operators often need prior training, and their operating capabilities vary. If the training is not in place or the operator makes mistakes due to carelessness, the pasting angle of the strain gauge may deviate greatly or the signal line may be connected incorrectly, resulting in errors in the collected strain data, affecting the accuracy of the wind turbine blade test. Utility Model Content

[0004] An embodiment of the present application provides a wind turbine blade strain gauge pasting auxiliary device, which adjusts the panel so that the first guide edge and the second guide edge show corresponding strain gauge pasting angles, so as to simply and accurately determine the actual pasting direction of the corresponding angle strain gauge.

[0005] The wind turbine blade strain gauge pasting auxiliary device includes a panel, the panel has a first surface and a second surface arranged opposite to each other, the first surface and the second surface have a common first guide edge, a second guide edge, a first reference edge and a second reference edge, and there is an intersection between the first guide edge and the second guide edge, wherein, when the panel is adjusted so that the first surface, the first reference edge, the second reference edge and the intersection meet a first condition, the first guide edge shows a first angle for pasting the strain gauge in the pressure surface of the wind turbine blade, and the second guide edge shows a second angle for pasting the strain gauge in the pressure surface; when the panel is adjusted so that the second surface, the first reference edge, the second reference edge and the intersection meet a second condition, the first guide edge shows a first angle for pasting the strain gauge in the suction surface of the wind turbine blade, and the second guide edge shows a second angle for pasting the strain gauge in the suction surface.

[0006] In some embodiments, the first condition includes that the first surface faces away from the pressure surface, and the intersection faces the positioning point on the pressure surface, and the position of the first reference edge is higher than the second reference edge, and the rotation angle of the panel in the plane where the first surface is located meets the preset reference angle; the second condition includes that the second surface faces away from the suction surface, and the intersection faces the positioning point on the suction surface, and the position of the first reference edge is higher than the second reference edge, and the rotation angle of the panel in the plane where the second surface is located meets the preset reference angle; wherein, the positioning point is a pre-set positioning point for indicating the strain gauge pasting position.

[0007] In some embodiments, within the plane where the first surface is located, the first reference edge is rotated to be parallel to the trailing edge of the wind turbine blade or the second reference edge is rotated to be parallel to the leading edge of the wind turbine blade, so that the rotation angle of the panel in the plane where the first surface is located conforms to a preset reference angle; within the plane where the second surface is located, the first reference edge is rotated to be parallel to the trailing edge of the wind turbine blade or the second reference edge is rotated to be parallel to the leading edge of the wind turbine blade, so that the rotation angle of the panel in the plane where the second surface is located conforms to the preset reference angle.

[0008] In some embodiments, the first surface and the second surface also have a common third reference edge. In the plane where the first surface is located, the third reference edge is adjusted to match the preset marking line in the pressure surface, so that the rotation angle of the panel in the plane where the first surface is located conforms to the preset reference angle; in the plane where the second surface is located, the third reference edge is adjusted to match the preset marking line in the suction surface, so that the rotation angle of the panel in the plane where the second surface is located conforms to the preset reference angle; wherein the preset marking line passes through the positioning point.

[0009] In some embodiments, at least one of the first reference edge and the second reference edge is the third reference edge, or the third reference edge is different from the first reference edge and the second reference edge.

[0010] In some embodiments, when the third reference side is different from the first reference side and the second reference side, the third reference side extends from the intersection point toward the interior of the panel.

[0011] In some embodiments, one end of the first reference edge is connected to one end of the first guide edge, the other end of the first guide edge is connected to one end of the second guide edge, and the other end of the second guide edge is connected to one end of the second reference edge.

[0012] In some embodiments, the first surface has a first mark representing the pressure surface of the wind turbine blade, the second surface has a second mark representing the suction surface of the wind turbine blade, the first guide edge has a third mark representing the first angle, the second guide edge has a fourth mark representing the second angle, the first reference edge has a fifth mark representing the trailing edge of the wind turbine blade, and the second reference edge has a sixth mark representing the leading edge of the wind turbine blade.

[0013] In some embodiments, at least one notch for holding is provided on the panel, and the material of the panel includes any one of paper, acrylic, hard plastic, metal, wood, and composite materials.

[0014] In some embodiments, the first angle includes -45° and the second angle includes 45°.

[0015] By applying the above technical solution, the wind turbine blade strain gauge pasting auxiliary device includes a first surface and a second surface arranged relatively to each other, the first surface and the second surface have a common first guide edge, a second guide edge, a first reference edge and a second reference edge, and there is an intersection between the first guide edge and the second guide edge. Since the first guide edge and the second guide edge can indicate the corresponding strain gauge pasting angle by adjusting the panel, the operator can simply and accurately determine the actual pasting direction of the strain gauge of the corresponding angle, which greatly simplifies the difficulty of on-site operation of pasting the wind turbine blade strain gauge, avoids the occurrence of pasting errors, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 The structure of the auxiliary device for attaching strain gauges to wind turbine blades according to the embodiment of the present application is shown in FIG. Figure 1 ;

[0018] Figure 2 The structure of the auxiliary device for attaching strain gauges to wind turbine blades according to the embodiment of the present application is shown in FIG. Figure 2 ;

[0019] Figure 3 The structure of the auxiliary device for attaching strain gauges to wind turbine blades according to the embodiment of the present application is shown in FIG. Figure 3 ;

[0020] Figure 4 The structure of the auxiliary device for attaching strain gauges to wind turbine blades according to the embodiment of the present application is shown in FIG. Figure 4 ;

[0021] Figure 5 This is a schematic diagram of the structure of a wind turbine blade according to an embodiment of the present application.

[0022] Figure 1-Figure 4 10, first surface; 20, second surface; 30, first guide edge; 40, second guide edge; 50, first reference edge; 60, second reference edge; 70, notch; 80, third reference edge. DETAILED DESCRIPTION

[0023] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0024] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the present application will occur to those skilled in the art.

[0025] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0026] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0027] It should also be understood that although the present application has been described with reference to some specific examples, those skilled in the art will be able to readily implement many other equivalent forms of the present application.

[0028] The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

[0029] Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present application, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that obscure the present application. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any suitable detailed structure.

[0030] This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present application.

[0031] An auxiliary device for pasting strain gauges of wind turbine blades according to an embodiment of the present application comprises a first surface and a second surface arranged opposite to each other, wherein the first surface and the second surface have a common first guide edge, a second guide edge, a first reference edge and a second reference edge, and there is an intersection between the first guide edge and the second guide edge. Since the first guide edge and the second guide edge can indicate corresponding pasting angles of strain gauges by adjusting the panel, an operator can simply and accurately determine the actual pasting direction of strain gauges of corresponding angles, thereby greatly simplifying the difficulty of on-site operation of pasting strain gauges of wind turbine blades, avoiding the occurrence of pasting errors, and improving work efficiency.

[0032] like Figure 1 and Figure 2 As shown, the wind turbine blade strain gauge pasting auxiliary device includes a panel, the panel has a first surface 10 and a second surface 20 arranged opposite to each other, the first surface 10 and the second surface 20 have a common first guide edge 30, a second guide edge 40, a first reference edge 50 and a second reference edge 60, and there is an intersection between the first guide edge 30 and the second guide edge 40, wherein,

[0033] When the first surface 10, the first reference edge 50, the second reference edge 60 and the intersection point satisfy the first condition by adjusting the panel, the first guide edge 30 shows the first angle at which the strain gauge is pasted in the pressure surface of the wind turbine blade, and the second guide edge 40 shows the second angle at which the strain gauge is pasted in the pressure surface;

[0034] When the panel is adjusted so that the second surface 20, the first reference edge 50, the second reference edge 60 and the intersection satisfy the second condition, the first guide edge 30 shows the first angle at which the strain gauge is pasted in the suction surface of the wind turbine blade, and the second guide edge 40 shows the second angle at which the strain gauge is pasted in the suction surface.

[0035] In this embodiment, Figure 5 As shown in the figure, the wind turbine blade includes a pressure surface, a suction surface, a leading edge, a trailing edge, a leading edge web and a trailing edge web. The pressure surface is the windward surface, also known as the PS (Pressure surface) surface. The suction surface is the leeward surface, also known as the SS (Suction surface) surface. The leading edge is also known as the LE (leading edge) and the trailing edge is also known as the TE (trailing edge). In the pressure surface and the suction surface, the sticking angles of the strain gauges can include 0°, -45°, 90° and 45°.

[0036] When it is necessary to paste the strain gauge along the first angle and / or the second angle on the pressure surface, the panel is adjusted so that the first surface 10, the first reference edge 50, the second reference edge 60 and the intersection meet the first condition. At this time, the first guide edge 30 shows the first angle at which the strain gauge is pasted on the pressure surface of the wind turbine blade, and the second guide edge 40 shows the second angle at which the strain gauge is pasted on the pressure surface. When it is necessary to paste the strain gauge along the first angle and / or the second angle on the suction surface, the panel is adjusted so that the second surface 20, the first reference edge 50, the second reference edge 60 and the intersection meet the first condition. At this time, the first guide edge 30 shows the first angle at which the strain gauge is pasted on the suction surface of the wind turbine blade, and the second guide edge 40 shows the second angle at which the strain gauge is pasted on the suction surface.

[0037] The strain gauge is then attached along the first guide edge 30 to make the strain gauge conform to the first angle, and the strain gauge is attached along the second guide edge 40 to make the strain gauge conform to the second angle, and the first angle and the second angle are different. Alternatively, a marking line may be drawn along the first guide edge 30 and the second guide edge 40 on the pressure surface or the suction surface, and the strain gauge is then attached along the marking line.

[0038] Optionally, the first reference edge 50 and the second reference edge 60 may be connected to the first guide edge 30 and the second guide edge 40 respectively, or may not be connected to the first guide edge 30 and the second guide edge 40. The first guide edge 30 and the second guide edge 40 may be entirely located between the first reference edge 50 and the second reference edge 60, or may be partially located between the first reference edge 50 and the second reference edge 60. The first reference edge 50 and the second reference edge 60 may be parallel or non-parallel. Those skilled in the art may flexibly set the arrangement according to actual needs, and the embodiments of the present application are not limited thereto.

[0039] The wind turbine blade strain gauge pasting auxiliary device of the embodiment of the present application includes a first surface 10 and a second surface 20 arranged opposite to each other. The first surface 10 and the second surface 20 have a common first guide edge 30, a second guide edge 40, a first reference edge 50 and a second reference edge 60. There is an intersection between the first guide edge 30 and the second guide edge 40. Since the first guide edge 30 and the second guide edge 40 can indicate the corresponding strain gauge pasting angle by adjusting the panel, the operator can simply and accurately determine the actual pasting direction of the corresponding angle strain gauge, which greatly simplifies the difficulty of on-site operation of pasting the wind turbine blade strain gauge, avoids the occurrence of pasting errors, and improves work efficiency.

[0040] In some embodiments of the present application,

[0041] The first condition includes that the first surface 10 faces away from the pressure surface, and the intersection point faces the positioning point on the pressure surface, and the position of the first reference edge 50 is higher than the second reference edge 60, and the rotation angle of the panel in the plane where the first surface 10 is located meets the preset reference angle;

[0042] The second condition includes that the second surface 20 faces away from the suction surface, and the intersection is opposite to the positioning point on the suction surface, and the position of the first reference edge 50 is higher than the second reference edge 60, and the rotation angle of the panel in the plane where the second surface 20 is located meets the preset reference angle;

[0043] The positioning point is a pre-set positioning point used to indicate the location where the strain gauge is pasted.

[0044] In this embodiment, when it is necessary to paste the strain gauge in the pressure surface, a positioning point is marked in advance at the position where the strain gauge is pasted in the pressure surface. First, the panel is flipped over so that the first surface 10 faces away from the pressure surface, and then the panel is moved so that the intersection of the first guide edge 30 and the second guide edge 40 is directly opposite to the positioning point on the pressure surface, and then the panel is rotated so that the position of the first reference edge 50 is higher than the second reference edge 60, and the rotation angle of the panel in the plane where the first surface 10 is located meets the preset reference angle, so that the first surface 10, the first reference edge 50, the second reference edge 60 and the intersection meet the first condition.

[0045] When it is necessary to paste the strain gauge in the suction surface, mark the positioning point in advance at the position where the strain gauge is pasted in the suction surface. First, flip the panel so that the second surface 20 faces away from the suction surface, then move the panel so that the intersection of the first guide edge 30 and the second guide edge 40 is directly opposite to the positioning point on the suction surface, and then rotate the panel so that the position of the first reference edge 50 is higher than the second reference edge 60, and the rotation angle of the panel in the plane where the second surface 20 is located meets the preset reference angle, so that the second surface 20, the first reference edge 50, the second reference edge 60 and the intersection meet the second condition.

[0046] It should be noted that the first surface 10 faces away from the pressure surface, specifically, the panel is on the side of the pressure surface, the first surface 10 faces outward, and the second surface 20 faces the pressure surface. The second surface 20 faces away from the suction surface, specifically, the panel is on the side of the suction surface, the second surface 20 faces outward, and the first surface 10 faces the suction surface.

[0047] In some embodiments of the present application,

[0048] In the plane where the first surface 10 is located, the first reference edge 50 is rotated to be parallel to the trailing edge of the wind turbine blade or the second reference edge 60 is rotated to be parallel to the leading edge of the wind turbine blade, so that the rotation angle of the panel in the plane where the first surface 10 is located meets the preset reference angle;

[0049] In the plane where the second surface 20 is located, the first reference edge 50 is rotated to be parallel to the trailing edge of the wind blade or the second reference edge 60 is rotated to be parallel to the leading edge of the wind blade, so that the rotation angle of the panel in the plane where the second surface 20 is located meets the preset reference angle.

[0050] In this embodiment, the panel is rotated until the first reference edge 50 is parallel to the trailing edge of the wind blade, or the second reference edge 60 is parallel to the leading edge of the wind blade, so that the rotation angle of the panel in the plane where the second surface 20 is located can be flexibly made to meet the preset reference angle.

[0051] In some embodiments of the present application, the first surface 10 and the second surface 20 further have a common third reference edge 80.

[0052] In the plane where the first surface 10 is located, the third reference edge 80 is adjusted to match the preset marking line in the pressure surface, so that the rotation angle of the panel in the plane where the first surface 10 is located meets the preset reference angle;

[0053] In the plane where the second surface 20 is located, the third reference edge 80 is adjusted to match the preset marking line in the suction surface, so that the rotation angle of the panel in the plane where the second surface 20 is located meets the preset reference angle;

[0054] Among them, the preset marking line passes through the positioning point.

[0055] In this embodiment, the preset marking line can be a horizontal line, a vertical line, or a cross line. When the third reference edge 80 is parallel to the horizontal line, or perpendicular to the vertical line, the third reference edge 80 matches the preset marking line; or, when the third reference edge 80 is perpendicular to the horizontal line, or parallel to the vertical line, the third reference edge 80 matches the preset marking line.

[0056] By means of the third reference edge 80 and the preset marking line, the rotation angle of the panel in the plane where the second surface 20 is located can be efficiently and accurately made to conform to the preset reference angle.

[0057] In some embodiments of the present application, at least one of the first reference edge 50 and the second reference edge 60 is the third reference edge 80 , or the third reference edge 80 is different from the first reference edge 50 and the second reference edge 60 .

[0058] In some embodiments of the present application, when the third reference side 80 is different from the first reference side 50 and the second reference side 60, Figure 3 and Figure 4 As shown, the third reference edge 80 extends from the intersection point toward the interior of the panel.

[0059] Optionally, the third reference edge 80 may also extend from the intersection point to the outside of the panel, or may also extend from other positions of the panel to the inside or outside of the panel.

[0060] In some embodiments of the present application, one end of the first reference edge 50 is connected to one end of the first guide edge 30 , the other end of the first guide edge 30 is connected to one end of the second guide edge 40 , and the other end of the second guide edge 40 is connected to one end of the second reference edge 60 .

[0061] Since the first guide edge 30 , the second guide edge 40 , the first reference edge 50 , and the second reference edge 60 are connected in sequence, the structural strength of the panel is improved.

[0062] Optionally, the first reference edge 50 and the second reference edge 60 may be connected or not connected, which is not limited in the embodiment of the present application.

[0063] In some embodiments of the present application, Figure 1-Figure 4 As shown, the first surface 10 has a first mark (PS surface) representing the pressure surface of the wind turbine blade, the second surface 20 has a second mark (SS surface) representing the suction surface of the wind turbine blade, the first guide edge 30 has a third mark (-45°) representing the first angle, the second guide edge 40 has a fourth mark (45°) representing the second angle, the first reference edge 50 has a fifth mark (TE edge) representing the trailing edge of the wind turbine blade, and the second reference edge 60 has a sixth mark (LE edge) representing the leading edge of the wind turbine blade.

[0064] By setting corresponding labels, users can intuitively identify different faces and edges, making it easier for users to correctly adjust the panel, thereby improving user experience.

[0065] In some embodiments of the present application, at least one notch 70 for holding is provided on the panel, and the material of the panel includes any one of paper, acrylic, hard plastic, metal, wood, and composite materials.

[0066] like Figure 1-Figure 4 As shown, two notches 70 are provided in the panel, so as to facilitate the user's grip and improve the user experience. Those skilled in the art may set different numbers of notches as required.

[0067] In some embodiments of the present application, the first angle includes -45°, and the second angle includes 45°.

[0068] In this embodiment, the specific directions of -45° and 45° in the pressure surface and the suction surface can be referred to Figure 5 The directions corresponding to -45° and 45° are shown in the figure. Those skilled in the art may use other angles as the first angle and the second angle according to actual needs. Different first angles and second angles do not affect the protection scope of the present application.

[0069] In addition, although exemplary embodiments have been described herein, the scope includes any and all embodiments based on the present disclosure with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the implementation of this application, and the examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0070] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, a person of ordinary skill in the art can use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the present disclosure. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the present disclosure may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently used as a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present disclosure should be determined with reference to the attached claims and the full scope of equivalent forms granted by these claims.

[0071] Multiple embodiments of the present disclosure are described in detail above, but the present disclosure is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications to the embodiments based on the concepts of the present disclosure, and these variations and modifications should all fall within the scope of protection required by the present disclosure.

Claims

1. A wind turbine blade strain gauge pasting auxiliary device, characterized in that: The panel comprises a first surface and a second surface which are arranged opposite to each other, the first surface and the second surface have a common first guide edge, a second guide edge, a first reference edge and a second reference edge, and there is an intersection between the first guide edge and the second guide edge, wherein: When the panel is adjusted so that the first surface, the first reference edge, the second reference edge and the intersection point meet a first condition, the first guide edge shows a first angle at which the strain gauge is pasted on the pressure surface of the wind turbine blade, and the second guide edge shows a second angle at which the strain gauge is pasted on the pressure surface; When the panel is adjusted so that the second surface, the first reference edge, the second reference edge and the intersection satisfy the second condition, the first guide edge shows the first angle at which the strain gauge is pasted in the suction surface of the wind turbine blade, and the second guide edge shows the second angle at which the strain gauge is pasted in the suction surface.

2. The wind turbine blade strain gauge pasting auxiliary device according to claim 1, characterized in that: The first condition includes that the first surface faces away from the pressure surface, the intersection point faces the positioning point on the pressure surface, the first reference edge is higher than the second reference edge, and the rotation angle of the panel in the plane where the first surface is located meets the preset reference angle; The second condition includes that the second surface faces away from the suction surface, the intersection point faces the positioning point on the suction surface, the first reference edge is higher than the second reference edge, and the rotation angle of the panel on the plane where the second surface is located meets the preset reference angle; The positioning point is a pre-set positioning point used to indicate the position where the strain gauge is pasted.

3. The wind turbine blade strain gauge pasting auxiliary device according to claim 2, characterized in that: In the plane where the first surface is located, the first reference edge is rotated to be parallel to the trailing edge of the wind turbine blade or the second reference edge is rotated to be parallel to the leading edge of the wind turbine blade, so that the rotation angle of the panel in the plane where the first surface is located meets the preset reference angle; In the plane where the second surface is located, the first reference edge is rotated to be parallel to the trailing edge of the wind turbine blade or the second reference edge is rotated to be parallel to the leading edge of the wind turbine blade, so that the rotation angle of the panel in the plane where the second surface is located meets the preset reference angle.

4. The wind turbine blade strain gauge pasting auxiliary device according to claim 2, characterized in that: The first surface and the second surface also have a common third reference edge, In the plane where the first surface is located, the third reference edge is adjusted to match the preset marking line in the pressure surface, so that the rotation angle of the panel in the plane where the first surface is located conforms to the preset reference angle; In the plane where the second surface is located, the third reference edge is adjusted to match the preset marking line in the suction surface, so that the rotation angle of the panel in the plane where the second surface is located conforms to the preset reference angle; Wherein, the preset marking line passes through the positioning point.

5. The wind turbine blade strain gauge pasting auxiliary device according to claim 4, characterized in that: At least one of the first reference side and the second reference side is the third reference side, or the third reference side is different from the first reference side and the second reference side.

6. The wind turbine blade strain gauge pasting auxiliary device according to claim 4, characterized in that: In the case where the third reference side is different from the first reference side and the second reference side, the third reference side extends from the intersection point toward the inside of the panel.

7. The wind turbine blade strain gauge pasting auxiliary device according to claim 1, characterized in that: One end of the first reference edge is connected to one end of the first guide edge, the other end of the first guide edge is connected to one end of the second guide edge, and the other end of the second guide edge is connected to one end of the second reference edge.

8. The wind turbine blade strain gauge pasting auxiliary device according to claim 1, characterized in that: The first surface has a first mark representing the pressure surface of the wind turbine blade, the second surface has a second mark representing the suction surface of the wind turbine blade, the first guide edge has a third mark representing the first angle, the second guide edge has a fourth mark representing the second angle, the first reference edge has a fifth mark representing the trailing edge of the wind turbine blade, and the second reference edge has a sixth mark representing the leading edge of the wind turbine blade.

9. The wind turbine blade strain gauge pasting auxiliary device according to claim 1, characterized in that: The panel is provided with at least one notch for holding, and the material of the panel includes any one of paper, acrylic, hard plastic, metal, wood, and composite material.

10. The wind turbine blade strain gauge pasting auxiliary device according to claim 1, characterized in that: The first angle includes -45°, and the second angle includes 45°.

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