Wind power blade body lightning arrester base positioning device and shell mold assembly

Abstract

The invention relates to the field of wind power blades, and discloses a wind power blade body lightning arrester base positioning device and a shell mold assembly.The wind power blade body lightning arrester base positioning device comprises a mounting frame, a first positioning assembly and a second positioning assembly, the adsorption assembly is connected to the mounting frame, the adsorption assembly comprises a suction cup, and the adsorption assembly has a positioning state and an adjusting state; in the positioning state, the suction cup adsorbs the blade body lightning arrester base, and an angle is formed between the adsorption face of the suction cup and the first direction. In the adjusting state, the adsorption assembly and the mounting frame can rotate relatively. The blade body lightning arrester base is used for solving the problems of low adaptability and low positioning precision, the blade body lightning arrester base is adsorbed through the suction cup, the blade body lightning arrester base can be matched with blade body lightning arrester bases of various shapes, and the adaptability is high. In the adjusting state, the adsorption assembly can rotate relative to the installation frame so that the angle of the blade body lightning arrester base in the wind power blade shell can be adjusted, after the appropriate angle is reached, the blade body lightning arrester base is switched to the positioning state, and high-precision positioning of the blade body lightning arrester base is achieved.

Description

Technical Field

[0001] The present application belongs to the field of wind turbine blades, and in particular relates to a wind turbine blade body lightning arrester base positioning device and a shell mold assembly. Background Art

[0002] Wind turbines are usually installed in open fields and are often struck by lightning during thunderstorms. Since the blades of wind turbines are at a high position during rotation, a lightning protection system needs to be installed on the blades of wind turbines. The lightning protection system includes a blade tip lightning receptor and a blade body lightning receptor. The blade body lightning receptor runs through the shell and is connected to the lightning receptor base inside the blade body. The lightning receptor base is connected to the blade tip lightning receptor through a down conductor to achieve electrical connection of the lightning protection system.

[0003] However, the blade body lightning receptor base needs to be installed inside the shell, and after the position is detected, the shell is punched to realize the alignment connection between the blade body lightning receptor and the blade body lightning receptor base. Therefore, the installation position of the blade body lightning receptor base needs to be relatively accurate, otherwise it will affect the subsequent installation of the blade body lightning receptor. However, the existing lightning receptor positioning device can only be used for one type or size of blade body lightning receptor base, with low adaptability and low positioning accuracy. Summary of the invention

[0004] The embodiment of the present application provides a wind turbine blade body lightning arrester base positioning device and a shell mold assembly, which can improve the adaptability of the positioning device and improve the positioning accuracy.

[0005] On the one hand, an embodiment of the present application provides a wind turbine blade lightning rod base positioning device, comprising: a mounting frame extending along a first direction and used to be connected to a wind turbine blade shell mold; an adsorption assembly connected to the mounting frame, the adsorption assembly comprising a suction cup, the suction cup being used to adsorb the blade lightning rod base, the adsorption assembly comprising a positioning state and an adjustment state; in the positioning state, the suction cup adsorbs the blade lightning rod base, and the adsorption surface of the suction cup is set at an angle to the first direction; in the adjustment state, the adsorption assembly and the mounting frame can rotate relative to each other.

[0006] According to the wind turbine blade body lightning arrester base positioning device provided in the present application, the adsorption assembly also includes a ball joint mechanism, the ball joint mechanism is connected to the suction cup, the ball joint mechanism is detachably connected to the mounting frame, in the positioning state, the ball joint mechanism is locked with the suction cup, and in the adjustment state, the ball joint mechanism and the suction cup can rotate relative to each other.

[0007] According to the wind turbine blade body lightning arrester base positioning device provided in the present application, the mounting frame includes a bracket and an adjusting rod that can be adjustably connected along a second direction and a third direction, the bracket is extended along the first direction and is used to be connected to the wind turbine blade shell mold, the end of the adjusting rod is connected to the adsorption assembly, the first direction and the third direction have an angle, and the second direction is perpendicular to the first direction and the second direction.

[0008] According to the wind turbine blade body lightning arrester base positioning device provided in the present application, the bracket includes a cross beam portion and two arm portions, the arm portions are used to be connected to the wind turbine blade shell mold, the two arm portions are arranged at opposite ends of the cross beam portion along the first direction, and have an extension arrangement with a length difference along the second direction, for making the cross beam portion parallel to the plane where the wind turbine blade shell mold is located.

[0009] According to the wind turbine blade body lightning arrester base positioning device provided in the present application, the bracket includes a connected connecting beam and an adjustment block, the adjustment block is protruding along the third direction on the connecting beam, the adjustment block is provided with an adjustment hole along the third direction, and the adjustment rod passes through the adjustment hole and is connected to the bracket.

[0010] According to the wind turbine blade body lightning arrester base positioning device provided in the present application, the connecting beam includes a main beam and two supporting beams, the two supporting beams are arranged at both ends of the supporting beam along the first direction, and the two supporting beams are extended along the second direction on one side of the main beam and have a length difference.

[0011] According to the wind turbine blade body lightning arrester base positioning device provided in the present application, the bracket also includes a base, the base is detachably connected to the connecting beam, the base is connected to the wind turbine blade shell mold, and the base and the part of the connecting beam extending along the second direction form the arm portion.

[0012] According to the wind turbine blade body lightning arrester base positioning device provided in the present application, the base includes a seat body and a seat plate stacked along the second direction, the seat body is detachably connected to the connecting beam, and the seat plate and the seat body are both provided with a first long hole along the first direction and a second long hole along the third direction, the first long hole and the second long hole are connected and are used for a fastener to penetrate and be connected to the wind turbine blade shell mold.

[0013] According to the wind turbine blade body lightning arrester base positioning device provided in the present application, a positioning column is provided on the side of the base body facing away from the base plate, and the positioning column includes a guiding inclined surface and is plugged into the connecting beam for positioning.

[0014] On the other hand, an embodiment of the present application provides a wind turbine blade shell mold assembly, including a shell mold and a plurality of the above-mentioned wind turbine blade body lightning arrester base positioning devices arranged at intervals along the span direction of the shell mold.

[0015] The wind turbine blade body lightning receptor base positioning device and shell mold assembly of the embodiment of the present application can adapt to various shapes of blade body lightning receptor bases by adsorbing the blade body lightning receptor base with a suction cup, and has high adaptability, and higher fit and stability. In the adjustment state, the adsorption assembly can rotate relative to the mounting frame to adjust the angle of the blade body lightning receptor base in the wind turbine blade shell, and after reaching the appropriate angle, switch to the positioning state, so that the blade body lightning receptor base adsorbed by the suction cup is stabilized at the angle, thereby achieving high-precision positioning of the blade body lightning receptor base. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a schematic diagram of the installation state structure of the wind turbine blade body lightning arrester base positioning device in some embodiments of the present application;

[0018] Figure 2 This is a schematic structural diagram of a wind turbine blade lightning arrester base positioning device according to some embodiments of the present application;

[0019] Figure 3 It is a right view of a wind turbine blade lightning arrester base positioning device according to some embodiments of the present application;

[0020] Figure 4 for Figure 3 Section view along AA direction;

[0021] Figure 5 for Figure 2 A front view of an example;

[0022] Figure 6 for Figure 5 Cross-sectional view along BB direction;

[0023] Figure 7 This is a schematic diagram of the base structure of some embodiments of the present application;

[0024] Figure 8 This is a bottom view of the base of some embodiments of the present application.

[0025] Reference numerals:

[0026] 100: mounting frame; 101: main beam; 102: supporting beam; 103: seat body; 104: seat plate; 105: positioning column; 106: guiding slope; 107: positioning hole; 110: bracket; 111: crossbeam; 112: supporting arm; 113: connecting beam; 114: adjusting block; 115: adjusting hole; 116: base; 117: first long hole; 118: second long hole; 120: adjusting rod; 121: vacuum channel; 200: adsorption component; 201: suction cup; 202: ball pair mechanism; 300: wind turbine blade shell mold. DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0029] At present, the general solution for making the blade body lightning arrester system in the industry is to fix the lightning arrester base block (without threaded holes) on the inner surface of the shell with adhesive after the blade shell is cured, and connect it with the wire bolts. After the blade is demoulded, the lightning arrester base position is located by metal detector. After confirmation, holes are drilled from the outer surface to the inside of the lightning arrester base and tapped. The lightning arrester and the lightning arrester base are fixed by threaded connection. The blade tip lightning arrester is connected with the wire bolts and bonded to the tip of the blade.

[0030] Because the inner surface of the blade is not horizontal due to the number of layers and the thickness of the core material, and the surface of the lightning rod base is not parallel to the outer surface of the blade when the base is bonded, after the metal detector finds the base, it cannot ensure that the drilling is perpendicular to the base surface, resulting in the threaded hole being not perpendicular to the surface of the lightning rod base, and even at a certain angle to it. Finally, after the lightning rod is installed, it cannot contact the surface of the lightning rod base, thus affecting the overall lightning protection effect of the lightning protection system.

[0031] In the related art, the positioning device for blade tip lightning receptors is mostly not suitable for the installation of blade body lightning receptor bases. The installation of conventional blade body lightning receptor bases requires a clamping part that matches the shape of the blade body lightning receptor base to fix the blade body lightning receptor base, but the clamping part can only be adapted to one type or one size of blade body lightning receptor base, which has low adaptability and low installation accuracy.

[0032] Figure 1 This is a schematic diagram of the installation state structure of the wind turbine blade body lightning arrester base positioning device in some embodiments of the present application; Figure 2 This is a schematic structural diagram of a wind turbine blade lightning arrester base positioning device according to some embodiments of the present application.

[0033] In order to improve the installation accuracy of the lightning arrester base, Figure 1 and Figure 2 As shown, the present application provides a wind turbine blade air terminal base positioning device and a shell mold assembly, wherein the adsorption assembly 200 is connected to the wind turbine blade shell mold 300 through the mounting frame 100, so that the adsorption assembly 200 is opposite to the inner cavity of the wind turbine blade shell mold 300. The suction cup 201 at the end of the adsorption assembly 200 is used to adsorb the air terminal base. When the suction cup 201 is adsorbed, the air terminal base is installed and fixed at a preset position in the wind turbine blade shell mold 300 with the extension direction of the air terminal base and the mounting frame 100 at a certain angle. The adsorption assembly 200 can rotate to adjust the angle of the suction cup 201 and maintain it at this angle until the air terminal base is firmly connected to the wind turbine blade shell mold 300, thereby improving the installation accuracy of the air terminal base.

[0034] Furthermore, the suction cup 201 is used to absorb the blade body lightning receptor base, which can be universally used for blade body lightning receptor bases of various models and sizes, and has stronger adaptability. The present application can be used for the installation of blade tip lightning receptors, and has a wide range of adaptability.

[0035] refer to Figure 1 and Figure 2The embodiment of the present application provides a wind turbine blade lightning rod base positioning device, comprising: a mounting frame 100 and an adsorption assembly 200, the mounting frame 100 extending along a first direction and used to be connected to a wind turbine blade shell mold 300; the adsorption assembly 200 is connected to the mounting frame 100, the adsorption assembly 200 comprises a suction cup 201, the suction cup 201 is used to adsorb the blade lightning rod base, the adsorption assembly 200 comprises a positioning state and an adjustment state; in the positioning state, the suction cup 201 adsorbs the blade lightning rod base, and the adsorption surface of the suction cup 201 is set at an angle to the first direction; in the adjustment state, the adsorption assembly 200 and the mounting frame 100 can rotate relative to each other.

[0036] The wind turbine blade shell mold 300 is an important tool for manufacturing wind turbine blade shells. It can be made of high-strength metal materials, such as steel or aluminum alloy, to ensure that it can withstand huge pressure and temperature changes during the blade manufacturing process. The shape and size of the wind turbine blade shell mold 300 are strictly manufactured in accordance with the design requirements of the wind turbine blade to ensure that the produced blade shell has a precise shape and size.

[0037] The wind turbine blade shell mold 300 is generally divided into an upper mold and a lower mold. During the manufacturing process, the raw material of the blade shell is placed between the upper and lower molds, and the raw material is formed into the shape of the blade shell by bonding, heating, pressurization and other process means. The surface of the wind turbine blade shell mold 300 is usually finely processed and treated to ensure that the surface quality of the blade shell is smooth and flat, reduce air resistance, and improve the performance of the blade. In order to ensure the stability of the wind turbine blade shell mold 300, a bracket 110 can be set in the circumference of the wind turbine blade shell mold 300.

[0038] The blade lightning arrester base is an important part of the wind turbine blade lightning protection system, which provides a stable installation foundation for the lightning arrester. The wind turbine blade lightning protection system consists of a lightning protection wire connecting the lightning arrester systems at various positions. Each blade has multiple blade lightning arrester systems and a blade tip lightning arrester system. Each blade lightning arrester system has two lightning arresters, which are distributed on the PS shell and the SS shell respectively. Each blade lightning arrester system mainly consists of a lightning arrester base and a lightning arrester. At present, the general solution for making the blade lightning arrester system in the industry is to fix the lightning arrester base (without threaded holes) on the inner surface of the shell with adhesive after the blade shell is cured, and connect it with the wire bolts. After the blade is demolded, the metal detector is used to locate the lightning arrester base position. After confirmation, holes are drilled from the outer surface to the inside of the lightning arrester base and tapped. The lightning arrester and the lightning arrester base are fixed by threaded connection. The blade tip lightning arrester is connected to the wire bolts and bonded to the tip of the blade.

[0039] The mounting frame 100 is extended along the first direction and is used to mount the adsorption assembly 200 on the wind turbine blade shell mold 300. The mounting frame 100 can drive the adsorption assembly 200 to move relative to the wind turbine blade shell mold 300 to adjust the position of the adsorption assembly 200 relative to the wind turbine blade shell mold 300. The mounting frame 100 is usually made of a solid metal material, such as steel, to ensure that it has sufficient strength and stability. For example, the mounting frame 100 can be made of aviation aluminum as the main material, which is light in weight and more convenient for manual installation.

[0040] The mounting frame 100 can be connected by a disassembly connection method such as bolt connection to facilitate disassembly and assembly. In the extension direction of the mounting frame 100, multiple connection points can be set to connect the adsorption components 200 at different positions, so as to achieve accurate positioning of the blade body lightning arrester base. The length and shape of the mounting frame 100 can be adjusted according to actual needs to adapt to wind turbine blade shell molds 300 of different sizes. Among them, the first direction is the length direction of the mounting frame 100, and can also be the chord direction of the wind turbine blade shell mold 300.

[0041] The adsorption component 200 adsorbs the blade body lightning receptor base through the suction cup 201 to achieve positioning and fixing of the base 116. The adsorption component 200 can rotate relative to the mounting frame 100 to achieve rotational adjustment of the adsorbed blade body lightning receptor base, and accurately adjust the inclination angle of the blade body lightning receptor base, for example, to make the center line of the blade body lightning receptor base coincide with the normal of the wind turbine blade shell mold 300 at the corresponding position, so as to facilitate subsequent vertical drilling.

[0042] Among them, the suction cup 201 is used to adsorb the blade body lightning receptor base. In the adsorption state, the blade body lightning receptor base and the suction cup 201 have no relative movement. The suction cup 201 can be a vacuum suction cup 201 or a magnetic suction cup 201. When the suction cup 201 is a vacuum suction cup 201, the suction cup 201 forms a seal with the surface of the blade body lightning receptor base. The adsorption component 200 can include a vacuum pump and a control valve. The vacuum pump extracts the air in the suction cup 201 to form a negative pressure, thereby generating an adsorption force. The adsorption force of the vacuum suction cup 201 can be controlled by adjusting the power of the vacuum pump and the opening of the control valve. Alternatively, when the suction cup 201 is a magnetic suction cup 201, the magnetic force of the magnet is used to adsorb the blade body lightning receptor base. The adsorption force of the magnetic suction cup 201 depends on the size of the current, the strength of the magnet and the material of the base 116. The adsorption or disconnection of the magnetic suction cup 201 is achieved by controlling the on and off of the power.

[0043] The positioning state refers to the state in which the adsorption surface of the suction cup 201 is adjusted to a preset angle with the first direction. In the positioning state, the suction cup 201 and the mounting frame 100 remain fixed without relative movement. The blade body lightning receptor base is mounted on the suction cup 201 in the positioning state and bonded to the wind turbine blade shell mold 300, so that the blade body lightning receptor base is maintained at a preset angle. The preset angle makes the blade body lightning receptor base parallel to the corresponding position of the wind turbine blade shell, which is convenient for rotary hole connection.

[0044] The adsorption surface can be any cross section of the suction cup 201 perpendicular to the axis. For example, the suction cup 201 can be conical or flat.

[0045] The adjustment state refers to the free state of the suction cup 201 in adjusting the angle with the first direction. In the adjustment state, the adsorption assembly 200 can be rotated along the axial direction of the suction cup 201, so that the adsorption assembly 200 and the mounting frame 100 can rotate relative to each other, thereby accurately adjusting the angle of the suction cup 201 relative to the first direction, that is, the angle of the suction cup 201 relative to the wind turbine blade shell mold 300.

[0046] For example, in the blade bonding process, the mounting frame 100 is mounted on the wind turbine blade shell mold 300 along the chord direction of the wind turbine blade shell mold 300. The suction cup 201 can be switched from the adjustment state to the positioning state, and then the blade body lightning receptor base is adsorbed on the suction cup 201, and the blade body lightning receptor base is firmly connected to the wind turbine blade shell along the preset angle of the suction cup 201. Alternatively, the blade body lightning receptor base can be mounted on the suction cup 201 in the adjustment state, and then the suction cup 201 adsorbed with the blade body lightning receptor base is switched to the positioning state, and the blade body lightning receptor base is firmly connected to the wind turbine blade shell along the preset angle of the suction cup 201.

[0047] By adsorbing the blade lightning receptor base by the suction cup 201, blade lightning receptor bases of various shapes can be adapted, with high adaptability, and higher fit and stability. In the adjustment state, the adsorption component 200 can rotate relative to the mounting frame 100 to adjust the angle of the blade lightning receptor base in the wind turbine blade shell. After reaching a suitable angle, it switches to the positioning state, so that the blade lightning receptor base adsorbed by the suction cup 201 is stabilized at the angle, thereby achieving high-precision positioning of the blade lightning receptor base.

[0048] Figure 3 It is a right view of a wind turbine blade lightning arrester base positioning device according to some embodiments of the present application; Figure 4 for Figure 3 Section view along AA.

[0049] like Figure 3 and Figure 4As shown, in a specific embodiment of the present application, the adsorption assembly 200 also includes a ball joint mechanism 202, the ball joint mechanism 202 is connected to the suction cup 201, the ball joint mechanism 202 is detachably connected to the mounting frame 100, in the positioning state, the ball joint mechanism 202 and the suction cup 201 are locked, in the adjustment state, the ball joint mechanism 202 and the suction cup 201 can rotate relative to each other.

[0050] The ball-joint mechanism 202 may include a ball head, a ball socket, and a locking member. The ball head is connected to the suction cup 201, the ball socket is detachably connected to the mounting frame 100, and a locking member is arranged between the ball head and the ball socket. The ball-joint mechanism 202 can realize relative rotation in multiple directions, thereby providing greater flexibility and adjustment space for the suction cup 201.

[0051] In the positioning state, the ball pair mechanism 202 fixes the ball head and the ball socket together through the locking member, and fixes the suction cup 201 at a specific angle and position, ensuring that the blade body lightning receptor base can be accurately adsorbed and positioned. At this time, the adsorption surface of the suction cup 201 is set at a specific angle to the first direction, and can stably adsorb the blade body lightning receptor base.

[0052] When the position and angle of the suction cup 201 need to be adjusted, the operator can release the locking member of the ball pair mechanism 202 to put the ball head and the ball socket in a relatively rotatable adjustment state. The suction cup 201 and the ball head rotate relative to the ball socket, so that the operator can adjust the position and angle of the suction cup 201 according to actual needs.

[0053] The ball-joint mechanism 202 is detachably connected to the mounting frame 100, for example, by threaded connection, snap-on connection or other detachable connection methods. The ball-joint mechanism 202 can be easily removed from the mounting frame 100 for repair, replacement or adjustment. In the use scenario of vacuum adsorption, the position of the adsorption hole of the suction cup 201 is different for blade lightning receptor bases of different shapes. For example, the blade lightning receptor base is spherical and has a through hole in the middle. Therefore, in order to achieve a better adsorption effect, the adsorption hole of the suction cup 201 is opened on the circumference of the inner surface to better adsorb the blade lightning receptor base. Among them, the adjustment rod 120 is provided with a vacuum channel 121 along the length direction to communicate with the adsorption hole of the suction cup 201. The vacuum channel 121 runs through the ball-joint mechanism 202 and is connected to a vacuum pump or the like through a pipeline.

[0054] The ball joint mechanism 202 can improve the adjustment flexibility of the adsorption assembly 200, and the ball joint mechanism 202 can be detachable from the mounting frame 100, making replacement and maintenance more convenient.

[0055] Continue to refer Figure 2 and Figure 3In some embodiments of the present application, the mounting frame 100 includes a bracket 110 and an adjusting rod 120 that can be adjustably connected along a second direction and a third direction. The bracket 110 is extended along the first direction and is used to be connected to a wind turbine blade shell mold 300. The end of the adjusting rod 120 is connected to the adsorption assembly 200. There is an angle between the first direction and the third direction, and the second direction is perpendicular to the first direction and the second direction.

[0056] A coordinate system is established on the positioning device, with the first direction being the X axis, the third direction being the Y axis, and the second direction being the Z axis. For example, the first direction is the extension direction of the bracket 110 , the second direction is the height direction of the bracket 110 , and the third direction is the width direction of the bracket 110 .

[0057] The adjusting rod 120 is in the shape of a rod for easy adjustment. The axis of the adjusting rod 120 is the second direction. The adjusting rod 120 is extended relative to the bracket 110 along the second direction, and can drive the adsorption component 200 at the end to move in the direction close to and away from the wind turbine blade shell, and adjust the distance of the suction cup 201 relative to the wind turbine blade shell. For example, the adjusting rod 120 can be a threaded rod and threadedly connected to the bracket 110 to achieve adjustment along the second direction. The adjusting rod 120 moves relative to the bracket 110 along the third direction, and can drive the adsorption component 200 at the end to move along the span direction of the wind turbine blade shell. For example, the adjusting rod 120 and the bracket 110 are provided with a slide rail slider structure to achieve linear movement along the third direction.

[0058] The adjusting rod 120 is disposed at a fixed position of the bracket 110 along the first direction, for example, at the middle of the bracket 110 along the first direction. Alternatively, the adjusting rod 120 is disposed on the bracket 110 so as to be adjustable along the first direction.

[0059] By adjusting the rod 120 in the second direction and the third direction relative to the bracket 110, the suction cup 201 connected at the end can be adjusted in relative position along the span direction and the height direction of the wind turbine blade shell, thereby improving the flexibility of the installation position of the blade body lightning receptor base. The adjustment along the second direction can apply pressure to the blade body lightning receptor base, so that the blade body lightning receptor base is better fixed on the wind turbine blade shell.

[0060] Continue to refer Figure 2 In an optional embodiment of the present application, the bracket 110 includes a connecting beam 113 and an adjusting block 114, the adjusting block 114 is protruding along the third direction from the connecting beam 113, the adjusting block 114 is provided with an adjusting hole 115 along the third direction, and the adjusting rod 120 passes through the adjusting hole 115 and is connected to the bracket 110.

[0061] The connecting beam 113 is a beam structure for connecting the adjusting rod 120, and both ends of the connecting beam 113 are connected to the wind turbine blade shell mold 300. In order to enhance the connection strength and reduce the weight, the connecting beam 113 can be a hollow square tube or round tube structure.

[0062] The adjusting block 114 is used to connect the adjusting rod 120 to the connecting beam 113. The adjusting block 114 and the connecting beam 113 can be fixedly connected or movably connected. The adjusting block 114 is arranged to protrude from the connecting beam 113 along the third direction to reduce the width of the connecting beam 113 increased for installing the adjusting rod 120, thereby ensuring the overall size and weight of the positioning device. The adjusting block 114 can be rectangular block or cylindrical or other irregular structures.

[0063] The adjusting hole 115 provides a space for the adjusting rod 120 to move along the third direction, and may be, for example, a long hole extending along a point direction, or a plurality of independent circular holes continuously arranged along the third direction.

[0064] The adjustment rod 120 is adjusted along the third direction by providing the adjustment hole 115, the structure is simple, and the adjustment rod 120 can be rotated at any angle in the adjustment hole 115, so as to facilitate the adjustment of the installation direction of the blade lightning receptor base. The adjustment rod 120 can be a threaded rod, and nuts for tightening the threaded rod are arranged above and below the adjustment block 114 along the second direction of the adjustment rod 120 to fix the position of the threaded rod in the second direction.

[0065] Figure 5 for Figure 2 An example front view.

[0066] like Figure 5 As shown, in some optional embodiments of the present application, the bracket 110 includes a beam portion 111 and two arm portions 112, the arm portion 112 is used to connect to the wind turbine blade shell mold 300, the two arm portions 112 are arranged at opposite ends of the beam portion 111 along a first direction, and are extended with a length difference along a second direction, so as to make the beam portion 111 parallel to the plane where the wind turbine blade shell mold 300 is located.

[0067] The cross beam 111 is a region of the support 110 extending along the first direction and is used to span the wind turbine blade shell along the chord direction of the wind turbine blade shell mold 300 . The cross beam 111 may include one structure or multiple connected structures having a tendency to extend along the first direction.

[0068] The arm portion 112 is a region where the bracket 110 is extended along the second direction, and the arm portion 112 is placed on both sides of the cross beam portion 111 along the first direction. It is used to support the cross beam portion 111 along the second direction and is connected to the wind turbine blade shell mold 300. The arm portion 112 may include one structure or multiple connected structures having a tendency to extend along the second direction.

[0069] The length difference refers to the difference in length of the two arm portions 112 relative to the cross beam portion 111 along the second direction. The height difference between the front and rear edges of the wind turbine blade shell mold 300 is used to compensate for the difference, so that the cross beam portion 111 is parallel to the horizontal plane. For example, the front edge of the wind turbine blade shell mold 300 is higher than the rear edge, so the length of the arm portion 112 connected to the front edge is shorter than the length of the arm portion 112 connected to the rear edge.

[0070] The plane where the wind turbine blade shell mold 300 is located is a horizontal plane, so that the wind turbine blade shell mold 300 is stably installed. For example, the wind turbine blade shell mold 300 may include the mold itself and a support frame, and the support frame is used to support and fix the mold itself on the horizontal plane. The positioning device is installed on the support frame to avoid damaging the structure of the mold of the present application and affecting the molding effect of the wind turbine blade shell.

[0071] Continue to refer Figure 5 In other embodiments of the present application, the connecting beam 113 includes a main beam 101 and two supporting beams 102, the two supporting beams 102 are arranged at both ends of the supporting beam 102 along the first direction, and the two supporting beams 102 are extended along the second direction and arranged on one side of the main beam 101, and have a length difference.

[0072] The main beam 101 is a beam structure extending in a first direction, and is used to install the adjustment rod 120 to provide support for the adsorption assembly 200. The support beam 102 is a beam structure extending in a second direction, and the main beam 101 and the support beam 102 can be an integral structure or a split structure. The support beam 102 is connected to the wind turbine blade shell mold 300 and has a length difference.

[0073] In addition, in another embodiment of the present application, the connecting beam 113 can form a length difference through the supporting beam 102, that is, the supporting beam 102 alone forms the supporting arm portion 112, or the length difference can be formed by the base 116 disposed below the supporting beam 102, that is, the base 116 is disposed below the supporting beam 102, and the base 116 has a length difference along the second direction, thereby realizing the length difference setting of the supporting arm portion 112. The base 116 and the supporting beam 102 together form the supporting arm portion 112.

[0074] Furthermore, if Figure 2 and Figure 5 As shown, in another optional embodiment of the present application, the bracket 110 also includes a base 116, which is detachably connected to the connecting beam 113, and the base 116 is connected to the wind turbine blade shell mold 300, and the base 116 and the connecting beam 113 extending along the second direction form an arm portion 112.

[0075] The base 116 is an intermediate structure that connects the connecting beam 113 to the wind turbine blade shell mold 300, and is used to position the installation point of the connecting beam 113 on the connecting beam 113. The base 116, the wind turbine blade shell mold 300, and the connecting beam 113 are all detachable, which facilitates the disassembly of the connecting beam 113 and the position adjustment of the wind turbine blade shell mold 300.

[0076] The installation of the positioning device requires multiple adjustments. When the wind turbine blade shell mold 300 is not laid with the wind turbine blade shell, the positioning device is installed to initially debug the position of the suction cup 201, the connecting beam 113 is removed, and the base 116 is retained. The wind turbine blade shell is laid. The connecting beam 113 is installed to the base 116 again, and the position of the suction cup 201 is debugged to ensure the position accuracy of the blade body lightning arrester base.

[0077] In addition, multiple blade lightning rod bases need to be set along the span direction of the wind turbine blade shell. Therefore, the spacing between each blade lightning rod base can be determined by multiple bases 116, and then after fixing one blade lightning rod base by the suction cup 201, it can be moved to the next base 116 position to connect and fix the blade lightning rod base at the next position.

[0078] The detachable arrangement of the base 116 and the wind turbine blade shell mold 300 facilitates multiple disassembly and adjustment of the position of the suction cup 201. The detachable connection of the base 116 and the connecting beam 113 facilitates simultaneous arrangement of multiple bases 116 and multiple disassembly and assembly of the connecting beam 113.

[0079] Figure 6 for Figure 5 Cross-sectional view along BB direction; Figure 7 This is a schematic diagram of the base 116 structure of some embodiments of the present application.

[0080] like Figure 6 and Figure 7 As shown, in the embodiment of the present application, the base 116 includes a positioning column 105, which is used to be inserted and aligned with the connecting beam 113. A positioning hole 107 is provided on the side of the connecting beam 113 facing the base 116 for cooperating with the positioning column 105. The base 116 can also be provided with a locking device, which locks the connecting beam 113 and the positioning column 105 after the positioning column 105 is inserted and aligned with the positioning hole 107.

[0081] The base 116 may include one or more positioning posts 105. The positioning posts 105 may be simple structures such as cylinders, triangular prisms or cuboid posts, or may be complex structures composed of simple structures. Multiple positioning posts 105 may also be arranged along the first direction, the second direction or at random intervals in other directions.

[0082] Further, in another optional embodiment, the base 116 includes a seat body 103 and a seat plate 104 stacked along the second direction, the seat body 103 is detachably connected to the connecting beam 113, and a positioning column 105 is provided on the side of the seat body 103 facing away from the seat plate 104. The positioning column 105 includes a guide slope 106, which is plugged into the connecting beam 113 for positioning.

[0083] The guide slope 106 is arranged on the side of the positioning column 105 facing away from the seat plate 104, and is used to cooperate with the positioning hole 107. The guide slope 106 can be a spherical surface or an arc surface or a straight surface with an inclined angle, so that the positioning column 105 can be inserted into the positioning hole 107.

[0084] In addition, a step is provided on the guide column to limit the length of the positioning column 105 inserted into the positioning hole 107. The step surface cooperates with the connecting beam 113 and is placed between the guide slope 106 and the seat plate 104. The diameter of the step surface is larger than the diameter of the guide slope 106 section.

[0085] Figure 8 This is a bottom view of the base 116 according to some embodiments of the present application.

[0086] like Figure 8 As shown, in an embodiment of the present application, the seat body 103 and the seat plate 104 are both provided with a first long hole 117 along a first direction and a second long hole 118 along a third direction, and the first long hole 117 and the second long hole 118 are connected and arranged for a fastener to penetrate and connect to the wind turbine blade shell mold 300.

[0087] The first long hole 117 is used to adjust the relative position of the seat plate 104 and the seat body 103 along the first direction, and the second long hole 118 is used to adjust the relative position of the seat plate 104 and the seat body 103 along the second direction. In this way, the displacement adjustment of the suction cup 201 relative to the wind turbine blade shell in the first direction and the second direction is achieved. After the adjustment rod 120 is adjusted to the extreme position, fine adjustment is performed through the first long hole 117 and the second long hole 118 to achieve high-precision adjustment. The first long hole 117 and the second long hole 118 can be arranged crosswise. The first long hole 117 and the second long hole 118 are correspondingly opened to the four corners of the seat body 103 and the seat plate 104, and the seat plate 104 and the seat body 103 are connected by fasteners, such as bolts, screws, etc., penetrating the first long hole 117 and the second long hole 118, and the adjustment displacement is determined based on the position of the bolts in the first long hole 117 and the second long hole 118.

[0088] The embodiment of the present application further provides a wind turbine blade shell mold 300 assembly, comprising a shell mold and a plurality of wind turbine blade body lightning arrester base positioning devices of the above-mentioned embodiments arranged at intervals along the span direction of the shell mold.

[0089] In one embodiment of the present application, in the early stage of the installation of the wind turbine blade body lightning receptor base positioning device, the wind turbine blade shell mold 300 is measured according to the API three-coordinate laser tracking scanning technology, and the scanning data is analyzed and fitted by the API dedicated software to obtain the blade body lightning receptor base positioning horizontal distance, angle and other information as the positioning basis of the positioning device, and the blade body lightning receptor base is positioned. The positioning device can be provided with a scale mark for reference for the subsequent adjustment of the suction cup 201 position.

[0090] When the positioning device is working, it is necessary to manually install the positioning device on the base 116 and lock it, and then install the blade body lightning rod base on the suction cup 201 of the positioning device, and turn on the vacuum system to start adsorption and fixation. After positioning, the next step of bonding is carried out to bond the blade body lightning rod base to the wind turbine blade shell. After the glue is cured, turn off the vacuum, remove the positioning device and place it properly to complete this process.

[0091] The above is only a specific implementation of the present application, which can be clearly understood by those skilled in the art. It should be understood that the protection scope of the present application is not limited thereto, and any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application.

Claims

1. A wind turbine blade lightning arrester base positioning device, characterized in that: include: A mounting frame extending along a first direction and used to be connected to a wind turbine blade shell mold; An adsorption assembly is connected to the mounting frame, the adsorption assembly includes a suction cup, the suction cup is used to adsorb the blade body lightning arrester base, and the adsorption assembly includes a positioning state and an adjustment state; In the positioning state, the suction cup adsorbs the blade lightning arrester base, and the adsorption surface of the suction cup is set at an angle with the first direction; in the adjustment state, the adsorption assembly and the mounting frame can rotate relative to each other.

2. The wind turbine blade lightning arrester base positioning device according to claim 1, characterized in that: The adsorption assembly also includes a ball-joint mechanism, which is connected to the suction cup and detachably connected to the mounting frame. In the positioning state, the ball-joint mechanism is locked with the suction cup, and in the adjustment state, the ball-joint mechanism and the suction cup can rotate relative to each other.

3. The wind turbine blade lightning arrester base positioning device according to claim 1, characterized in that: The mounting frame includes a bracket and an adjusting rod that can be adjustably connected along a second direction and a third direction. The bracket is extended along the first direction and is used to be connected to the wind turbine blade shell mold. The end of the adjusting rod is connected to the adsorption assembly. There is an angle between the first direction and the third direction, and the second direction is perpendicular to the first direction and the second direction.

4. The wind turbine blade body lightning arrester base positioning device according to claim 3, characterized in that: The bracket includes a cross beam portion and two arm portions, the arm portions are used to be connected to a wind turbine blade shell mold, the two arm portions are arranged at opposite ends of the cross beam portion along the first direction, and are extended with a length difference along the second direction, so as to make the cross beam portion parallel to the plane where the wind turbine blade shell mold is located.

5. The wind turbine blade lightning arrester base positioning device according to claim 4, characterized in that: The bracket comprises a connecting beam and an adjusting block, wherein the adjusting block is protrudingly arranged on the connecting beam along the third direction, and an adjusting hole is opened on the adjusting block along the third direction, and the adjusting rod passes through the adjusting hole and is connected to the bracket.

6. The wind turbine blade lightning arrester base positioning device according to claim 5, characterized in that: The connecting beam includes a main beam and two supporting beams, wherein the two supporting beams are arranged at two ends of the supporting beam along the first direction, and the two supporting beams are extended along the second direction and arranged on one side of the main beam and have a length difference.

7. The wind turbine blade lightning arrester base positioning device according to claim 5 or 6, characterized in that: The bracket also includes a base, which is detachably connected to the connecting beam, and the base is connected to a wind turbine blade shell mold. The base and the portion of the connecting beam extending along the second direction form the arm portion.

8. The wind turbine blade lightning arrester base positioning device according to claim 7, characterized in that: The base includes a seat body and a seat plate stacked along the second direction, the seat body is detachably connected to the connecting beam, the seat plate and the seat body are both provided with a first long hole along the first direction and a second long hole along the third direction, the first long hole and the second long hole are connected and are used for a fastener to penetrate and connect to the wind turbine blade shell mold.

9. The wind turbine blade lightning arrester base positioning device according to claim 8, characterized in that: A positioning column is arranged on one side of the seat body facing away from the seat plate. The positioning column comprises a guiding inclined surface and is inserted and positioned with the connecting beam.

10. A wind turbine blade shell mold assembly, characterized in that: The invention comprises a shell mold and a plurality of wind turbine blade body lightning arrester base positioning devices according to any one of claims 1 to 9 which are arranged at intervals along the span direction of the shell mold.

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