Turnover device and turnover method for wind power blade web

Abstract

The invention relates to the technical field of wind power equipment, in particular to an overturning device and method for a wind power blade web. The turnover device provided by the invention comprises a hanging beam structure with a preset length in a first direction. The overturning structure is arranged on the lifting beam structure, the overturning structure comprises a plurality of first overturning assemblies arranged at intervals and a plurality of second overturning assemblies arranged at intervals, each first overturning assembly and each second overturning assembly are correspondingly connected with a lifting belt, and each first overturning assembly comprises a driving part and a first rotating part; the driving piece is used for driving the first rotating piece to rotate relative to the hanging beam structure, and at least part of the second overturning assembly has the rotational freedom degree relative to the hanging beam structure. The lifting belts are used for synchronously lifting the web, and the driving pieces drive the lifting belts to rotate through the first rotating pieces so as to drive the web to turn over. According to the turnover device, the turnover efficiency and safety can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind power equipment, and in particular to a flipping device for a wind power blade web and a flipping method for a wind power blade web. Background Art

[0002] Wind turbine blades are usually 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 include webs, which are used to bear the blade bending load and resist the blade shear force. When producing wind turbine blades, the webs need to be prefabricated in a mold, then separated from the mold, and assembled with other components.

[0003] In the related art, the web is in a horizontal state when demoulding, and it is necessary to use lifting equipment, slings and manual labor to lift and flip the web to a vertical state, thereby facilitating the assembly of the web with other components.

[0004] However, when the web is flipped in the above manner, the flipping efficiency is low and there are potential safety hazards. Summary of the invention

[0005] The present application provides a flipping device for a wind turbine blade web and a flipping method for a wind turbine blade web, which are used to solve the problems of low flipping efficiency and potential safety hazards in the current flipping method.

[0006] In order to achieve the above purpose, the technical solution of this application is as follows:

[0007] In a first aspect, the present application provides a flipping device for a wind turbine blade web, which is used for flipping the wind turbine blade web, the flipping device comprising: a hanging beam structure having a predetermined length along a first direction, a flipping structure arranged on the hanging beam structure, the flipping structure comprising a plurality of first flipping assemblies and a plurality of second flipping assemblies, each of the first flipping assemblies being arranged at intervals along the first direction, the first flipping assembly comprising a driving member and a first rotating member, the driving member being used to drive the first rotating member to rotate relative to the hanging beam structure, each of the second flipping assemblies being arranged at intervals along the first direction, and at least a portion of the second flipping assembly having rotational freedom relative to the hanging beam structure; a lifting belt, which is in a closed loop as a whole, each of the first flipping assembly and the second flipping assembly being respectively connected with a lifting belt, each lifting belt being used for synchronously lifting the web, and the driving member of each first flipping assembly driving the lifting belt to rotate via the first rotating member to drive the web to flip.

[0008] In a possible implementation, in the turning device provided by the present application, the suspension beam structure has a first end and a second end relative to each other along a first direction, and each first turning assembly is arranged close to the first end relative to the second end.

[0009] In a possible implementation, the flipping device provided in the present application, the first flipping component also includes a first mounting frame arranged on the lifting structure, the first rotating member is rotatably arranged on the first mounting frame, and the rotation axis of the first rotating member is arranged parallel to the first direction, and the lifting belt corresponding to the first flipping component is in transmission cooperation with the first rotating member; the second flipping component includes a second mounting frame and a second rotating member rotatably connected to the second mounting frame, the rotation axis of the second rotating member is arranged parallel to the first direction, and the lifting belt corresponding to the second flipping component is in transmission cooperation with the second rotating member.

[0010] In a possible implementation, the flipping device provided in the present application, the first rotating member includes a driving wheel and an idler wheel, the driving member is connected to the driving wheel by transmission, and the lifting belt is passed through the driving wheel and the idler wheel; the first flipping assembly also includes a power transmission member, and the driving member is connected to the driving wheel by transmission through the power transmission member.

[0011] In a possible implementation, in the flipping device provided by the present application, the second rotating member includes a pulley, the lifting belt is sleeved on the pulley, and the pulley is used to assist the rotation of the lifting belt.

[0012] In a possible implementation, the flipping device provided in the present application further includes a plurality of protective members, which are connected to the lifting belts in a one-to-one correspondence, and the protective members are arranged side by side in the same direction, and the protective members are used to protect the belly plate.

[0013] In one possible implementation, the flipping device provided in the present application, the protective member includes a first protective portion and a second protective portion, the first protective portion and the second protective portion are fixedly connected, and the first protective portion and the second protective portion are intersectingly arranged to form a predetermined angle, the first protective portion is used to fit with the flange of the web, and the second protective portion is used to support the web.

[0014] In a possible implementation, in the flipping device provided in the present application, the length of the second guarding portion is greater than the length of the first guarding portion.

[0015] In a possible implementation, in the flipping device provided in the present application, at least one of the first protective part and the second protective part is provided with at least two spaced-apart make way openings, and the lifting belt is passed through the make way opening and connected to the protective member.

[0016] In one possible implementation, the flipping device provided in the present application has a first mounting frame having a pair of first connecting portions along the second direction, the first connecting portions being used to be fixedly connected to the hanging beam structure so that the first flipping assembly is fixedly connected to the hanging beam structure; the second mounting frame has a second connecting portion on the side facing the hanging beam structure, the second connecting portion being used to be fixedly connected to the hanging beam structure so that the second flipping assembly is fixedly connected to the hanging beam structure; wherein the first direction intersects with the second direction.

[0017] In a possible implementation, the flipping device provided in the present application also includes a detector and a controller; the detector is configured to measure the width dimension of the web area corresponding to the sling connected to each first flipping assembly; the controller is configured to determine the target rotational speed of the driving member of each first flipping assembly according to the width dimension, and control the driving member of each first flipping assembly to rotate according to the target rotational speed.

[0018] In a second aspect, the present application provides a method for flipping a web of a wind turbine blade, comprising:

[0019] Providing a turning device for the web of the wind turbine blade;

[0020] Connect the lifting beam structure, the turnover structure and the lifting belt in sequence and lift the web;

[0021] Measuring the width of the web area corresponding to the lifting belts connected to each first flip assembly;

[0022] The target rotation speed of the driving member of each first flip assembly is determined according to the width size, and the driving member of each first flip assembly is controlled to rotate according to the target rotation speed.

[0023] In a possible implementation, in the flipping method provided by the present application, the number of first flipping assemblies is n, where n is a positive integer greater than or equal to 2, and the first flipping assemblies are arranged at intervals from the blade root toward the blade tip of the wind turbine blade;

[0024] The step of determining the target rotation speed of the driving member of each first flip assembly according to the width dimension comprises:

[0025] The target rotation speed of the driving member of any first flip assembly is determined by the ratio of the width dimension corresponding to the first flip assembly to the target width dimension;

[0026] Among the first flipping components, one close to the blade root is a target first flipping component, and a width dimension corresponding to the target first flipping component is a target width dimension.

[0027] The present application provides a flipping device for a wind turbine blade web and a flipping method for a wind turbine blade web. The flipping device includes a hanging beam structure, a flipping structure and a lifting belt. The hanging beam structure is used to connect with a lifting device and a flipping structure. The flipping structure includes a plurality of first flipping assemblies and a plurality of second flipping assemblies. Each first flipping assembly and each second flipping assembly is respectively connected with a lifting belt, and the lifting belt is used to lift the web. The first flipping assembly includes a driving member and a first rotating member. The driving member is used to drive the first rotating member to rotate relative to the hanging beam structure. The lifting belt is in transmission cooperation with the first rotating member so that the first rotating member drives the lifting belt to rotate. During the rotation of the lifting belt, the friction between the lifting belt and the web is used to drive the web to flip. At least part of the second flipping assembly has rotational freedom relative to the suspension beam structure. When the web begins to flip, the lifting belt connected to the second flipping assembly rotates along with the web, and at least part of the second flipping assembly rotates in coordination to reduce flipping resistance. Thus, each driving member provides rotational power to the corresponding first rotating member, and the coordination speed between each first flipping assembly is adjusted through the different driving forces of each driving member. The auxiliary flipping of the second flipping assembly can reduce the need for manual intervention, thereby helping to improve flipping efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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.

[0029] Figure 1 A schematic diagram of the connection between the hanging beam structure and the flip structure provided in the embodiment of the present application;

[0030] Figure 2 Schematic diagram of the connection between the flipping device and the web provided in the embodiment of the present application Figure 1 ;

[0031] Figure 3 for Figure 2 A schematic diagram of the structure of the first flip assembly;

[0032] Figure 4 Schematic diagram of the connection between the flipping device and the web provided in the embodiment of the present application Figure 2 ;

[0033] Figure 5 A schematic diagram of the connection between the second flip assembly and the hanging beam structure provided in an embodiment of the present application;

[0034] Figure 6 A schematic diagram of the structure of the protective element provided in the embodiment of the present application;

[0035] Figure 7 A schematic diagram of the connection between the protective member and the web provided in an embodiment of the present application;

[0036] Figure 8 for Figure 7 A partial enlarged view of the middle A;

[0037] Fig. 9 A schematic diagram of the structure of the web provided in an embodiment of the present application;

[0038] Fig.10 A schematic flow chart of a method for flipping a wind turbine blade web provided in an embodiment of the present application.

[0039] Description of reference numerals:

[0040] 10-Turning device;

[0041] 100- hanging beam structure;

[0042] 200- flip structure;

[0043] 210-first flip assembly; 211-driving member; 212-first rotating member; 2121-driving wheel; 2122-idling wheel; 213-first mounting frame; 2131-first connecting portion; 214-power transmission member;

[0044] 220 - second flip assembly; 221 - second mounting frame; 222 - second rotating member;

[0045] 300-lifting belt;

[0046] 400-protective parts;

[0047] 410-first protection unit;

[0048] 420-Second protection unit;

[0049] 430-give way;

[0050] 20-belly; 21-flange;

[0051] X-first direction; Y-second direction.

[0052] 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

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] In the related art, the web is in a horizontal state when demoulding, and it is necessary to use lifting equipment, slings and manual labor to lift and flip the web to a vertical state, so as to facilitate the assembly of the web with other components. However, when flipping the web in the above manner, the flipping efficiency is low, and the staff needs to stand under the lifting equipment to operate, which poses a safety hazard.

[0058] In view of this, the present application provides a wind turbine blade web flipping device and a wind turbine blade web flipping method, wherein the flipping device includes a hanging beam structure, a flipping structure and a lifting belt, wherein the hanging beam structure is used to connect with a lifting device and a flipping structure. The flipping structure includes a plurality of first flipping assemblies and a plurality of second flipping assemblies, each of which is respectively connected with a lifting belt, and the lifting belt is used to lift the web. The first flipping assembly includes a driving member and a first rotating member, wherein the driving member is used to drive the first rotating member to rotate relative to the hanging beam structure, so that the first rotating member drives the lifting belt to rotate, and the web is flipped during the rotation of the lifting belt. At least part of the second flipping assembly has a rotational freedom relative to the hanging beam structure, when the web starts to flip, the lifting belt connected to the second flipping assembly rotates with the web, and at least part of the second flipping assembly rotates in coordination to reduce the flipping resistance, thereby providing a rotational power to the corresponding first rotating member through each driving member to adjust the coordinated rotation speed between each first flipping assembly, and cooperating with the auxiliary flipping of the second flipping assembly, the need for manual intervention can be reduced, thereby facilitating the improvement of flipping efficiency and safety.

[0059] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0060] See also Figures 1 to 3 The present application provides a flipping device 10 for a web 20 of a wind turbine blade, which is used for flipping the web 20 of a wind turbine blade. The flipping device 10 includes a suspension beam structure 100, a flipping structure 200, and a lifting belt 300. The suspension beam structure 100 has a predetermined length along a first direction X. The flipping structure 200 is arranged on the suspension beam structure 100. The flipping structure 200 includes a plurality of first flipping assemblies 210 and a plurality of second flipping assemblies 220. Each first flipping assembly 210 is arranged at intervals along the first direction X. The first flipping assembly 210 includes a driving member 211 and a first rotating member 212. The driving member 211 is used to drive the first rotating member 212 to rotate relative to the suspension beam structure 100. Each second flipping assembly 220 is arranged at intervals along the first direction X. At least part of the second flipping assembly 220 has a rotational freedom relative to the suspension beam structure 100. The lifting belt 300 is in a closed loop as a whole. Each first flipping assembly 210 and the second flipping assembly 220 are respectively connected with a lifting belt 300. Each lifting belt 300 is used to synchronously lift the web 20. The driving member 211 of each first flipping assembly 210 drives the lifting belt 300 to rotate through the first rotating member 212 to drive the web 20 to flip.

[0061] The first direction X may be understood as the axial direction of the web 20 , or may be understood as the length direction of the suspension beam structure 100 itself.

[0062] In a specific implementation, the suspension beam structure 100 extends along the first direction X and has a sufficient length to cover the length of the web 20. This arrangement provides a mounting base for the flip structure 200 to ensure the stability of the web 20 during the flipping process. Optionally, the suspension beam structure 100 may be a truss suspension beam, which may be composed of a plurality of rods to facilitate the installation of the lifting equipment and the flip structure 200, and to adapt to the forces and moments generated when the web 20 flips.

[0063] It should be noted that the flip structure 200 is arranged on the suspension beam structure 100 to realize the flipping of the web 20. The flip structure 200 may include a plurality of first flip assemblies 210 and a plurality of second flip assemblies 220, and the first flip assemblies 210 and the second flip assemblies 220 are arranged at intervals along the first direction X. The first flip assembly 210 includes a driving member 211 and a first rotating member 212, and the driving member 211 is used as a power source to provide rotational power to the first rotating member 212, thereby driving it to rotate relative to the suspension beam structure 100. The driving member 211 may have a braking function to prevent the flipping torque generated by the web 20 itself during lifting from causing uncontrolled flipping. By providing the driving member 211 and the first rotating member 212, the flipping action can be accurately controlled.

[0064] The driving member 211 is used to provide torque to drive the first rotating member 212 to rotate. The driving member 211 may include a motor, a hydraulic motor, a pneumatic motor, etc. The first rotating member 212 may include a rotating shaft, a rotating wheel, etc.

[0065] In addition, at least part of the second flip assembly 220 has rotational freedom relative to the suspension beam structure 100. The second flip assembly 220 plays an auxiliary and supporting role during the flipping process, and cooperates with the first flip assembly 210 to achieve a smooth flipping of the web 20.

[0066] For example, the second flipping assembly 220 may include a pulley to assist the flipping.

[0067] It should also be noted that two, three, four or more first flipping assemblies 210 can be provided, and two, three, four or more second flipping assemblies 220 can also be provided, which can be specifically provided according to the length of the web 20 .

[0068] When installing the first flip assembly 210 and the second flip assembly 220, the first flip assembly 210 can be spaced relative to the blade tip and close to the blade root, and the spacing distance between two adjacent first flip assemblies 210 can be any value between 2m and 4m, including the two end values ​​of 2m and 4m. Each second flip assembly 220 can be evenly arranged along a predetermined spacing distance, and the spacing distance between two adjacent second flip assemblies 220 can be any value between 2m and 4m, including the two end values ​​of 2m and 4m. Alternatively, the first flip assembly 210 and the second flip assembly 220 can also be alternately arranged, and this application is not limited here.

[0069] The lifting belt 300 is used to connect the web 20 and the turnover structure 200. The lifting belt 300 is in a closed loop shape to ensure the stability and safety of the lifting. Each first turnover assembly 210 and the second turnover assembly 220 are respectively connected to the lifting belt 300. In this way, all the lifting belts 300 can work synchronously to lift the web 20 together.

[0070] In specific implementation, the driving member 211 is started, and the driving member 211 drives the first rotating member 212 to rotate relative to the suspension beam structure 100. The lifting belt 300 cooperates with the first rotating member 212 so that the first rotating member 212 drives the lifting belt 300 to rotate. During the rotation of the lifting belt 300, the friction between the lifting belt 300 and the web 20 is used to drive the web 20 to flip. When the web 20 starts to flip, the lifting belt 300 connected to the second flip assembly 220 rotates with the web 20, and at least part of the second flip assembly 220 rotates in cooperation to reduce the flipping resistance. Therefore, each driving member 211 provides a rotational power to the corresponding first rotating member 212, and the different driving forces of each driving member 211 are used to adjust the cooperation speed between each first flip assembly 210, and cooperate with the auxiliary flip of the second flip assembly 220. Compared with the flipping of the web 20 that requires manual cooperation in the related art, it can improve the degree of automation, safety and flipping efficiency, and can also improve the stability of the flipping process.

[0071] In addition, by using the turnover structure 200 in conjunction with the lifting belt 300 , the synchronization of the lifting belt 300 in flipping the web 20 can be improved, thereby reducing the probability of twisting damage to the web 20 during the flipping process.

[0072] In some embodiments, the suspension beam structure 100 has a first end and a second end opposite to each other along the first direction X, and each first flip assembly 210 is disposed close to the first end relative to the second end.

[0073] The first end portion may be understood as an end closer to the blade root relative to the blade tip, and the second end portion may be understood as an end closer to the blade tip relative to the blade root.

[0074] During the flipping process, the area of ​​the web 20 close to the blade root has a larger mass and moment of inertia than the area close to the blade tip. Setting the first flipping assembly 210 at a position close to the first end relative to the second end helps to improve the flipping efficiency and enhance the flipping stability.

[0075] See also Figure 3 In some embodiments, the first flip assembly 210 further includes a first mounting frame 213 disposed on the lifting structure, the first rotating member 212 is rotatably disposed on the first mounting frame 213, and the rotation axis of the first rotating member 212 is disposed parallel to the first direction X, and the lifting belt 300 corresponding to the first flip assembly 210 is in transmission cooperation with the first rotating member 212. The second flip assembly 220 includes a second mounting frame 221 and a second rotating member 222 rotatably connected to the second mounting frame 221, the rotation axis of the second rotating member 222 is disposed parallel to the first direction X, and the lifting belt 300 corresponding to the second flip assembly 220 is in transmission cooperation with the second rotating member 222.

[0076] The first rotating member 212 is rotatably disposed on the first mounting frame 213 , and the rotation axis of the first rotating member 212 is arranged to be parallel to the first direction X. This ensures that the first rotating member 212 can rotate smoothly along a predetermined direction during the flipping process, thereby effectively transmitting the flipping power.

[0077] The lifting belt 300 accurately transmits the turning torque of the first rotating member 212 to the web 20 through the transmission cooperation with the first rotating member 212, thereby realizing the turning action of the web 20. The transmission cooperation between the first rotating member 212 and the lifting belt 300 can improve the accuracy and stability of the turning operation, and ensure the safety and reliability of the turning process of the web 20.

[0078] In addition, the rotation axis of the second rotating member 222 can also be set to be parallel to the first direction X, so that the second flipping assembly 220 can form an effective synergy with the first flipping assembly 210 during the flipping process of the web 20 to jointly achieve smooth flipping of the web 20.

[0079] The lifting belt 300 can also be in transmission cooperation with the second rotating member 222. The lifting belt 300 can be wound around the second rotating member 222. When the overturning torque acts on the lifting belt 300, the lifting belt 300 can transmit the overturning torque to the second rotating member 222, so that the second rotating member 222 rotates, thereby reducing the overturning resistance and assisting the web 20 to overturn. This arrangement simplifies the overturning operation process and improves the overturning efficiency.

[0080] Among them, the first mounting frame 213 and the second mounting frame 221 can both include mounting frame structures such as frame-type mounting frames and truss-type mounting frames, and the first mounting frame 213 and the second mounting frame 221 can both be fixedly connected to the suspension beam structure 100, thereby ensuring the safety and reliability of the flipping process of the web 20.

[0081] See also Figure 3 In some embodiments, the first rotating member 212 includes a driving wheel 2121 and an idler wheel 2122, the driving member 211 is connected to the driving wheel 2121 by transmission, and the lifting belt 300 is passed through the driving wheel 2121 and the idler wheel 2122; the first flipping assembly 210 also includes a power transmission member 214, and the driving member 211 is connected to the driving wheel 2121 by transmission through the power transmission member 214.

[0082] The lifting belt 300 is passed between the driving wheel 2121 and the idler wheel 2122 . During the flipping process, the lifting belt 300 can move along with the rotation of the driving wheel 2121 , thereby improving the reliability of the flipping operation.

[0083] It can be understood that the driving wheel 2121 is used to receive and transmit power from the driving member 211. The idler wheel 2122 works in conjunction with the driving wheel 2121 to jointly drive the lifting belt 300. Specifically, the driving wheel 2121 transmits power to the lifting belt 300 through friction, and the idler wheel 2122 plays a supporting and guiding role to ensure that the lifting belt 300 can be driven smoothly and continuously, so that the lifting belt 300 can rotate and move according to a predetermined path and direction under the guidance of the driving wheel 2121 and the idler wheel 2122.

[0084] Exemplarily, the power transmission member 214 may include a speed reducer, and the driving member 211 may include a motor. The speed reducer can convert the high-speed and low-torque power of the motor into low-speed and high-torque power, and the speed reducer has high transmission efficiency and precision, and can reduce energy loss, thereby improving the turning moment and turning efficiency of the first turning assembly 210. That is, when the first turning assembly 210 is running, the driving member 211 generates a rotational torque, which is amplified by the power transmission member 214, and drives the driving wheel 2121 to rotate, and then drives the web 20 to turn through the lifting belt 300.

[0085] See also Figure 5 In some embodiments, the second rotating member 222 includes a pulley, and the lifting belt 300 is sleeved on the pulley, and the pulley is used to assist the lifting belt 300 to rotate.

[0086] See also Figure 4When the pulley is used in conjunction with the lifting belt 300, the lifting belt 300 is sleeved on the pulley. When the first flip assembly 210 drives the corresponding lifting belt 300 to rotate, the lifting belt 300 drives the web 20 to flip. During the flipping process of the web 20, the lifting belt 300 corresponding to the second flip assembly 220 is driven to rotate, thereby driving the pulley to start rotating. Since the pulley has rotation flexibility, it can effectively convert sliding friction into rolling friction, thereby reducing the friction resistance between the lifting belt 300 and the pulley, thereby reducing the flipping resistance, and improving the flipping efficiency and flipping stability of the web 20.

[0087] It should be noted that the web 20 is usually installed in the shell of the wind turbine blade, and the web 20 is usually provided with a flange 21 to increase the connection area between the shell and the web 20 .

[0088] See also Figure 6 and Figure 7 In some embodiments, a plurality of protective members 400 are further included. The protective members 400 are connected to the lifting belts 300 one by one. The protective members 400 are arranged side by side in the same direction. The protective members 400 are used to protect the belly plate 20 .

[0089] It should be noted that, during the turnover process of the web 20, the direct contact between the web 20 and the lifting belt 300 will cause the turnover fulcrum of the web 20 to bear a large pressure, which may easily cause the web 20 to be twisted and damaged. Therefore, by providing the protective member 400, the turnover fulcrum of the web 20 can avoid direct contact with the lifting belt 300, increase the force bearing area of ​​the web 20, reduce the local pressure on the web 20, thereby achieving effective protection of the side where the turnover fulcrum of the web 20 is located, and reducing the probability of twisting and damage of the web 20 during the turnover process.

[0090] Optionally, the protective member 400 may include a protective plate and a protective member 400 .

[0091] See also Figure 6 In some embodiments, the protective member 400 includes a first protective portion 410 and a second protective portion 420, the first protective portion 410 and the second protective portion 420 are fixedly connected, and the first protective portion 410 and the second protective portion 420 are intersected and formed at a predetermined angle, the first protective portion 410 is used to fit with the flange 21 of the web 20, and the second protective portion 420 is used to support the web 20.

[0092] The first protection part 410 and the second protection part 420 are intersected and form a predetermined angle to match the web 20. Specifically, the predetermined angle can be set to any value between 85° and 95°, and can be 90°, so that the protection member 400 is L-shaped.

[0093] The first protection part 410 fits with the flange 21 of the web 20 to provide effective support and protection for the flange 21 during the flipping process, and can also reduce the damage to the web 20 caused by friction or collision during the flipping process. The second protection part 420 is used to support the web 20 to provide necessary support for the web 20 during the flipping process. Therefore, through the mutual cooperation of the first protection part 410 and the second protection part 420, the protection member 400 can provide support and support to the web 20, thereby ensuring the stability and safety of the web 20 during the flipping process.

[0094] It should be noted that see Figure 8 The length of the first protective portion 410 can be set to be greater than the length of the flange 21 and exceed the length of the flange 21 by 10mm-20mm. In this way, the lifting belt 300 can be prevented from strangling the flange 21, the probability of damage to the web 20 can be reduced, and the protective effect of the first protective portion 410 can be improved.

[0095] Exemplarily, the first protection portion 410 and the second protection portion 420 may be provided as an integrally formed part, thereby facilitating the production and processing of the protection member 400 .

[0096] See also Figure 6 In some embodiments, the length of the second guarding portion 420 is greater than the length of the first guarding portion 410 .

[0097] During the flipping process of the web 20 , the extended arrangement of the second protection portion 420 can enhance the supporting and protection effects on the web 20 , and reduce damage to the web 20 caused by local stress concentration.

[0098] In addition, the increase in the length of the second protection portion 420 helps to improve the stability and strength of the protection member 400. During the rollover process, the longer second protection portion 420 can better disperse the weight and stress of the web 20, thereby improving the load-bearing capacity of the protection member 400.

[0099] Exemplarily, the ratio of the length of the first protection portion 410 to the length of the second protection portion 420 may be set to 1:2.

[0100] See also Figure 6 In some embodiments, at least one of the first protective portion 410 and the second protective portion 420 is provided with at least two spaced-apart yielding openings 430 , and the lifting belt 300 is passed through the yielding openings 430 and connected to the protective member 400 .

[0101] The lifting belt 300 passes through at least two spaced-apart yielding openings 430, so that the lifting belt 300 is firmly connected to the protective member 400. This arrangement simplifies the installation of the lifting belt 300 and can also enhance the friction between the side of the web 20 where the flip fulcrum is located and the flip device 10.

[0102] Exemplarily, two clearance openings 430 may be provided, and the lifting belt 300 passes through one of the two clearance openings 430 and then passes through the other one, thereby achieving the connection between the lifting belt 300 and the protective element 400 .

[0103] In addition, the clearance opening 430 may be provided on the first protection portion 410 , or on the second protection portion 420 , or may be provided on both the first protection portion 410 and the second protection portion 420 , and the present application does not limit this.

[0104] See also Figure 3 and Figure 5 In some embodiments, the first mounting frame 213 has a pair of first connecting portions 2131 arranged along the second direction Y, and the first connecting portions 2131 are used to be fixedly connected to the hanging beam structure 100, so that the first flip assembly 210 is fixedly connected to the hanging beam structure 100. The second mounting frame 221 has a second connecting portion on the side facing the hanging beam structure 100, and the second connecting portion is used to be fixedly connected to the hanging beam structure 100, so that the second flip assembly 220 is fixedly connected to the hanging beam structure 100. The first direction X intersects with the second direction Y.

[0105] It should be noted that the second direction Y can be understood as the width direction of the suspension beam structure 100 .

[0106] Optionally, the first connecting portion 2131 can be a clamp, which can realize the fixed connection between the first flip assembly 210 and the suspension beam structure 100. When the position of the first flip assembly 210 needs to be adjusted, the clamp can be removed first, and then the clamp can be installed to fix the first flip assembly 210 after the first flip assembly 210 is moved.

[0107] Exemplarily, the second connection portion may also be a clamp, or the second connection portion may be a welding point. After adjusting the position of the second flip assembly 220, the second flip assembly 220 and the suspension beam structure 100 can be fixedly connected by welding the second mounting frame 221 to the suspension beam structure 100.

[0108] In some embodiments, the flipping device 10 further includes a detector and a controller; the detector is configured to measure the width dimension of the web 20 region corresponding to the sling 300 connected to each first flipping assembly 210. The controller is configured to determine the target rotation speed of the driving member 211 of each first flipping assembly 210 according to the width dimension, and control the driving member 211 of each first flipping assembly 210 to rotate according to the target rotation speed.

[0109] After each lifting belt 300 is correspondingly installed on the first flip assembly 210 and the second flip assembly 220 and the web 20 is lifted, the width dimension of the web 20 region corresponding to the lifting belt 300 connected to each first flip assembly 210 can be measured by a detector. Exemplarily, the detector can be set on each protective member 400 or the hanging beam structure 100, and the detector can include a laser ranging sensor, which uses the round-trip time or phase difference of the laser to accurately measure the width dimension of the web 20 region.

[0110] After receiving the width dimension information transmitted by the detector, the controller can determine the target rotation speed that the driving member 211 of each first flip assembly 210 needs to reach according to the width dimension data. It should be noted that in order to achieve the synchronous flipping of the web 20, it is necessary to make the angular velocity of the flipping of different positions of the web 20 consistent. In order to make the angular velocity of the flipping consistent, it is necessary to set the linear velocity of the lifting belt 300 respectively. The linear velocity of the lifting belt 300 is equal to the angular velocity of the web 20 multiplied by the flipping radius of the web 20. Therefore, it is necessary to set the linear velocity of the lifting belt according to the width dimension of different positions of the web 20, so as to determine the target rotation speed that the driving member 211 needs to reach. Then, the controller sends the target rotation speed to the driving member 211 of each first flip assembly 210, so as to realize the control of the rotation speed of the lifting belt 300.

[0111] Alternatively, before hoisting the web 20, the corresponding width dimension of the web area can be measured by manually holding a detector. The detector can also include a measuring structure such as a box ruler, etc., in order to achieve the measurement of the width dimension of the web area, which is not limited in the present application.

[0112] See also Fig.10 Based on the above embodiments, the present application provides a method for flipping a web of a wind turbine blade, comprising:

[0113] Step S101: providing a turning device 10 for a wind turbine blade web 20 provided in any of the above embodiments.

[0114] Step S102 : sequentially connect the lifting beam structure 100 , the turnover structure 200 and the lifting belt 300 and lift the web 20 .

[0115] After the web 20 is hoisted, the hoisting height of the hoisting belt 300 can be adjusted to keep the web 20 in a horizontal state. Specifically, the length of the hoisting belt 300 can be set in advance according to different hoisting positions. After hoisting, the staff can fine-tune the hoisting height of the hoisting belt 300 to keep the web 20 in a horizontal state to avoid distortion of the web 20.

[0116] Step S103: measuring the width of the web 20 region corresponding to the lifting belts 300 connected to each first turnover assembly 210 .

[0117] For example, a detector may be used, which may include a laser range sensor, and the width dimension of the web 20 region may be measured using the round trip time or phase difference of the laser.

[0118] Step S104: determining a target rotation speed of the driving member 211 of each first flip assembly 210 according to the width size, and controlling the driving member 211 of each first flip assembly 210 to rotate according to the target rotation speed.

[0119] Specifically, the target rotation speed of the driving member 211 of each first flip assembly 210 can be determined by the controller, and after the determination, each driving member 211 can be controlled by the controller to make the first rotating member 212 of each first flip assembly 210 rotate synchronously, thereby driving the corresponding lifting belt 300 to rotate, and cooperating with the second flip assembly 220 and the corresponding lifting belt 300 to flip the horizontal posture of the web 20 during demoulding to the vertical posture required for blade assembly. In this way, the synchronization of the flipping of the web 20 is improved, and the probability of twisting and damage during the flipping of the web 20 is reduced.

[0120] In addition, during the flipping process of the web 20 , the staff can observe the flipping of the web 20 and adjust the rotation speed of the first flipping assembly 210 in real time.

[0121] In some embodiments, the number of the first flipping assemblies 210 is n, where n is a positive integer greater than or equal to 2, and the first flipping assemblies 210 are arranged at intervals from the blade root toward the blade tip of the wind turbine blade.

[0122] The step of determining the target rotation speed of the driving member 211 of each first flip assembly 210 according to the width dimension includes:

[0123] The target rotation speed of the driving member 211 of any first flip assembly 210 is determined by the ratio of the width dimension corresponding to the first flip assembly 210 to the target width dimension.

[0124] Among the first flipping components 210 , the one close to the blade root is a target first flipping component 210 , and the width dimension corresponding to the target first flipping component 210 is a target width dimension.

[0125] Specifically, the following description is made by taking the arrangement of three first flipping assemblies 210 as an example. One of the three first flipping assemblies 210 close to the blade root is the target first flipping assembly 210, see Fig. 9, the width dimension of the web 20 region corresponding to the target first flip assembly 210 is measured by using a detector, and the width dimension is the target width dimension, and the target width dimension is L1. Then the width dimension of the web 20 region corresponding to one of the remaining two first flip assemblies 210 close to the target first flip assembly 210 is measured by using a detector and recorded as L2, and the width dimension of the web 20 region corresponding to one of the remaining two first flip assemblies 210 far from the target first flip assembly 210 is measured and recorded as L3.

[0126] It should be noted that in order to achieve synchronous flipping of the web 20, the angular velocity of flipping of different positions of the web 20 needs to be consistent. In order to make the angular velocity of flipping consistent, the linear velocity of the lifting belt 300 needs to be set respectively. The linear velocity of the lifting belt 300 is equal to the angular velocity of the web 20 multiplied by the flipping radius of the web 20, wherein the width dimension of the web 20 area can be understood as the flipping radius of the web 20. Therefore, along the direction from the root of the wind turbine blade to the tip of the blade, the speed ratio between the three first flipping components 210 can be set to 1: L2 / L1: L3 / L1, and the initial speed of the target first flipping component 210 can be set to be less than or equal to 1m / s, thereby improving the stability of the flipping of the web 20.

[0127] It is understandable that the number of first flipping assemblies 210 may be four, five or more, and the target rotation speed of the driving member 211 of any first flipping assembly 210 may be determined by the ratio of the width dimension corresponding to the first flipping assembly 210 to the target width dimension.

[0128] 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 web flipping device, used for flipping a wind turbine blade web (20), characterized in that: The turning device (10) comprises: The suspension beam structure (100) has a predetermined length along a first direction (X), A flip structure (200) is arranged on the suspension beam structure (100), the flip structure (200) comprises a plurality of first flip assemblies (210) and a plurality of second flip assemblies (220), each of the first flip assemblies (210) is arranged at intervals along the first direction (X), the first flip assemblies (210) comprise a driving member (211) and a first rotating member (212), the driving member (211) is used to drive the first rotating member (212) to rotate relative to the suspension beam structure (100), each of the second flip assemblies (220) is arranged at intervals along the first direction (X), and at least a portion of the second flip assemblies (220) has a degree of rotational freedom relative to the suspension beam structure (100); The lifting belt (300) is in the shape of a closed loop as a whole. Each of the first flipping components (210) and the second flipping components (220) is respectively connected with the lifting belt (300). Each of the lifting belts (300) is used to synchronously lift the web (20). The driving member (211) of each of the first flipping components (210) drives the lifting belt (300) to rotate through the first rotating member (212), so as to drive the web (20) to flip.

2. The turning device according to claim 1, characterized in that: The suspension beam structure (100) has a first end and a second end opposite to each other along the first direction (X), and each first flip assembly (210) is arranged close to the first end relative to the second end.

3. The turning device according to claim 1, characterized in that: The first flip assembly (210) further comprises a first mounting frame (213) arranged on the suspension beam structure (100); the first rotating member (212) is rotatably arranged on the first mounting frame (213); and the rotation axis of the first rotating member (212) is arranged parallel to the first direction (X); and the lifting belt (300) corresponding to the first flip assembly (210) is in transmission cooperation with the first rotating member (212); The second flip assembly (220) comprises a second mounting frame (221) and a second rotating member (222) rotatably connected to the second mounting frame (221); the rotating axis of the second rotating member (222) is arranged parallel to the first direction (X); and the lifting belt (300) corresponding to the second flip assembly (220) is in transmission cooperation with the second rotating member (222).

4. The turning device according to claim 3, characterized in that: The first rotating member (212) comprises a driving wheel (2121) and an idler wheel (2122); the driving member (211) is transmission-connected to the driving wheel (2121); and the lifting belt (300) is passed through the driving wheel (2121) and the idler wheel (2122); The first flip assembly (210) further comprises a power transmission member (214), and the driving member (211) is connected to the driving wheel (2121) via the power transmission member (214).

5. The turning device according to claim 3, characterized in that: The second rotating member (222) comprises a pulley, the lifting belt (300) is sleeved on the pulley, and the pulley is used to assist the lifting belt (300) in rotating.

6. The turning device according to any one of claims 1 to 5, characterized in that: It also includes a plurality of protective members (400), wherein the protective members (400) are connected to the lifting belts (300) in a one-to-one correspondence, and each of the protective members (400) is arranged side by side in the same direction, and the protective members (400) are used to protect the web (20).

7. The turning device according to claim 6, characterized in that: The protective member (400) comprises a first protective portion (410) and a second protective portion (420), wherein the first protective portion (410) and the second protective portion (420) are fixedly connected, and the first protective portion (410) and the second protective portion (420) are arranged to intersect and form a predetermined angle, the first protective portion (410) is used to fit with the flange (21) of the web (20), and the second protective portion (420) is used to support the web (20).

8. The turning device according to claim 7, characterized in that: The length of the second protection portion (420) is greater than the length of the first protection portion (410).

9. The turning device according to claim 7, characterized in that: At least one of the first protective part (410) and the second protective part (420) is provided with at least two spaced-apart make-way openings (430), and the lifting belt (300) is passed through the make-way openings (430) and connected to the protective element (400).

10. The turning device according to claim 3, characterized in that: The first mounting frame (213) has first connecting parts (2131) arranged in pairs along the second direction (Y), and the first connecting parts (2131) are used to be fixedly connected to the hanging beam structure (100), so that the first flip assembly (210) is fixedly connected to the hanging beam structure (100); The second mounting frame (221) has a second connection portion on a side facing the hanging beam structure (100), and the second connection portion is used to be fixedly connected to the hanging beam structure (100), so that the second flip assembly (220) is fixedly connected to the hanging beam structure (100); Wherein, the first direction (X) intersects with the second direction (Y).

11. The turning device according to claim 1, characterized in that: The flipping device (10) also includes a detector and a controller; The detector is configured to measure the width dimension of the web (20) region corresponding to the lifting belt (300) connected to each of the first flipping assemblies (210); The controller is configured to determine a target rotation speed of the driving member (211) of each first flipping assembly (210) according to the width dimension, and control the driving member (211) of each first flipping assembly (210) to rotate according to the target rotation speed.

12. A method for turning over a web of a wind turbine blade, characterized in that: include: Providing a wind turbine blade web flipping device (10) according to any one of claims 1 to 11; The lifting beam structure (100), the turnover structure (200) and the lifting belt (300) are sequentially connected and the web (20) is lifted; Measuring the width dimension of the web (20) region corresponding to the lifting belt (300) to which each of the first flipping assemblies (210) is connected; The target rotation speed of the driving member (211) of each first flipping assembly (210) is determined according to the width dimension, and the driving member (211) of each first flipping assembly (210) is controlled to rotate according to the target rotation speed.

13. The flipping method according to claim 12, characterized in that: The number of the first flipping assemblies (210) is n, where n is a positive integer greater than or equal to 2, and the first flipping assemblies (210) are arranged at intervals from the blade root toward the blade tip of the wind turbine blade; The step of determining the target rotation speed of the driving member (211) of each first flip assembly (210) according to the width dimension comprises: The target rotation speed of the driving member (211) of any one of the first flipping assemblies (210) is determined by the ratio of the width dimension corresponding to the first flipping assemblies (210) to the target width dimension; Among the first flipping components (210), the one close to the blade root is a target first flipping component (210), and the width dimension corresponding to the target first flipping component (210) is the target width dimension.

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