A wind turbine blade connector forming mold and method

Abstract

The application provides a wind power blade connecting piece forming die and method, and relates to the field of wind power blade connecting piece forming die and method.The wind power blade connecting piece forming die is used for manufacturing a wind power blade internal structure connecting piece, and comprises a bottom plate, an upper adjusting part, a left adjusting part and a right adjusting part.The upper adjusting part, the left adjusting part and the right adjusting part are movably connected with the bottom plate, and the upper adjusting part, the left adjusting part and the right adjusting part enclose a containing space, which is used for pultrusion manufacturing of the wind power blade internal structure connecting piece.The cross-sectional size of the containing space is changed by moving the positions of the upper adjusting part, the left adjusting part and the right adjusting part on the bottom plate, so as to change the size of the manufactured wind power blade internal structure connecting piece.The wind power blade connecting piece forming die has a novel structure and is flexible to use, and only one set of die is used to produce π-shaped structure reinforcing pieces with different cross-sectional shapes and sizes to adapt to the requirements of different positions of the blade, thereby reducing the production cost and improving the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind turbine blade manufacturing, in particular to a wind turbine blade connecting piece forming die and method. BACKGROUND

[0002] At present, the wind turbine blade of a wind turbine adopts an airfoil structure, and a plurality of structural reinforcing members of different sizes are arranged in the blade to ensure the stability of the wind turbine blade. With the increasing size of the wind turbine blade, the traditional C-shaped structural reinforcing member is difficult to meet the large-scale demand of the wind turbine blade due to the limitation of material performance and manufacturing difficulty, and the T-shaped structural reinforcing member is composed of two separate structures, which is complicated to assemble and has defects in stability. A π-shaped structural reinforcing member is gradually applied in the industry, which has stable structure, strong anti-twisting ability and obvious weight reduction effect.

[0003] In actual use, π-shaped structural reinforcing members of different cross-sectional shapes and sizes are needed along the length direction of the blade to adapt to the needs of different positions of the blade, and a blade often needs π-shaped structural reinforcing members of multiple shapes, which leads to the need to open multiple sets of pultrusion dies, resulting in an increase in production cost and a decrease in production efficiency. SUMMARY

[0004] To solve the above problems, a wind turbine blade connecting piece forming die and method are provided.

[0005] The first aspect of the present application provides a wind turbine blade connecting piece forming die for manufacturing a wind turbine blade internal structure connecting piece, comprising a bottom plate, an upper adjusting part, a left adjusting part and a right adjusting part.

[0006] The upper adjusting part, the left adjusting part and the right adjusting part are movably connected with the bottom plate respectively; the upper adjusting part, the left adjusting part and the right adjusting part enclose a containing space, and the containing space is used for pultrusion to manufacture a wind turbine blade internal structure connecting piece.

[0007] By moving the positions of the upper adjusting part, the left adjusting part and the right adjusting part on the bottom plate, the cross-sectional size of the containing space is changed to change the size of the manufactured wind turbine blade internal structure connecting piece.

[0008] The wind turbine blade connecting piece forming die further comprises an angle adjusting part.

[0009] The angle adjusting part is rotatably connected with the bottom plate, and the left adjusting part and the right adjusting part are movably connected with the angle adjusting part respectively. By rotating the angle adjusting part, the inclination angle of the containing space is changed to change the inclination angle of the manufactured wind turbine blade internal structure connecting piece.

[0010] In which, the base plate includes a rotation adjustment component and an angle fixing shaft, the rotation adjustment component includes a rotation adjustment hole, the angle adjustment part includes an angle adjustment hole, and the angle fixing shaft passes through the angle adjustment hole; through the adjustment of the first adjustment mechanism and the rotation adjustment hole, the angle adjustment hole rotates around the angle fixing shaft to change the inclination angle of the accommodating space.

[0011] The angle adjustment portion includes a left limiting component, the left limiting component is provided with a left adjustment hole, and the position of the left adjustment portion in the horizontal direction of the angle adjustment portion is changed by adjusting the second adjustment mechanism and the left adjustment hole, so as to change the size of the cross-section of the accommodating space in the horizontal direction;

[0012] and / or,

[0013] The angle adjustment portion includes a right limiting component, which is provided with a right adjustment hole. By adjusting the third adjustment mechanism and the right adjustment hole, the position of the right adjustment portion in the horizontal direction of the angle adjustment portion is changed to change the horizontal size of the cross-section of the accommodating space.

[0014] The upper adjustment portion includes an upper adjustment hole, and the position of the upper adjustment portion in the vertical direction of the bottom plate is changed by adjusting the fourth adjustment mechanism and the upper adjustment hole to change the size of the cross section of the accommodating space in the vertical direction.

[0015] Wherein, the upper adjustment part includes a plurality of upper adjustment fins, the left adjustment part includes a plurality of left adjustment fins, and the right adjustment part includes a plurality of right adjustment fins;

[0016] The upper adjusting portion, the left adjusting portion and the right adjusting portion together form the accommodating space, which includes: a plurality of the upper adjusting fins, a plurality of the left adjusting fins and a plurality of the right adjusting fins together form the accommodating space.

[0017] The wind turbine blade connector forming mold further includes an end face limiting portion, which is fixedly connected to the upper adjusting portion and is used to compress the plurality of upper adjusting fins, the plurality of left adjusting fins and the plurality of right adjusting fins.

[0018] Wherein, the cross section of the accommodating space is π-shaped.

[0019] A second aspect of the present application provides a method for forming a wind turbine blade connector. The method uses the wind turbine blade connector forming mold according to any one of the first aspects to manufacture a wind turbine blade internal structure connector. The method comprises:

[0020] The upper adjusting part, the left adjusting part and the right adjusting part of the wind turbine blade connector forming mold are used to enclose a receiving space, and the receiving space is used to pultrusion-form the wind turbine blade internal structure connector; by moving the upper adjusting part, the left adjusting part and the right adjusting part on the base plate, the cross-sectional size of the receiving space is changed to change the size of the produced wind turbine blade internal structure connector to meet the needs of the produced wind turbine blade internal structure connector.

[0021] The method further comprises:

[0022] The material of the wind turbine blade internal structure connector includes a light-curing material. After the wind turbine blade internal structure connector is manufactured by pultrusion molding using the accommodation space, the wind turbine blade internal structure connector is cured by light curing.

[0023] Compared with the prior art, the present invention has the following advantages: In the wind turbine blade connector forming mold of the present invention, the cross-sectional dimensions of the accommodating space are changed by moving the positions of the upper, left, and right adjusting parts on the base plate, thereby changing the dimensions of the produced structural connector. The wind turbine blade connector forming mold of the present invention has a novel structure and is flexible to use. Using only one set of molds, π-shaped structural reinforcements of varying cross-sectional shapes and dimensions can be produced to accommodate the needs of different blade positions, thereby reducing production costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 The figure is a schematic diagram of a forming mold for a wind turbine blade connector according to an exemplary embodiment.

[0026] Figure 2 Schematic diagram of the angle adjustment unit shown in the embodiment.

[0027] Figure 3 Schematic diagram of an upper regulating fin, a left regulating fin, and a right regulating fin shown in an embodiment.

[0028] Figure 4 Schematic diagram of the effect of adjusting the left adjustment part and the right adjustment part shown in the embodiment.

[0029] Figure 5 It is a schematic diagram showing the effects of adjusting the upper adjusting portion, the left adjusting portion and the right adjusting portion according to an embodiment.

[0030] Figure 6 is the effect schematic diagram of adjusting the upper adjusting part, the left adjusting part, the right adjusting part and the angle adjusting part. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other at will.

[0032] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] The present application provides a wind power blade connecting piece forming die and method, the wind power blade connecting piece forming die is used for manufacturing wind power blade internal structure connecting piece, comprising: bottom plate, upper adjusting part, left adjusting part and right adjusting part. The upper adjusting part, the left adjusting part and the right adjusting part are respectively movably connected with the bottom plate, and the upper adjusting part, the left adjusting part and the right adjusting part enclose a containing space, and the containing space is used for pultrusion manufacturing wind power blade internal structure connecting piece. By moving the positions of the upper adjusting part, the left adjusting part and the right adjusting part on the bottom plate, the cross-sectional size of the containing space is changed to change the size of the manufactured wind power blade internal structure connecting piece. The wind power blade connecting piece forming die of the present application has novel structure and flexible use, and different cross-sectional shape and size π type structure reinforcing pieces can be produced by using only one set of die to adapt to the needs of different positions of the blade, thereby reducing the production cost and improving the production efficiency.

[0034] According to one exemplary embodiment, as Figure 1 shown, the first aspect of the present application provides a wind power blade connecting piece forming die for manufacturing wind power blade internal structure connecting piece, particularly suitable for manufacturing π type structure connecting piece, the wind power blade connecting piece forming die comprises: bottom plate 100, upper adjusting part 200, left adjusting part 300, right adjusting part 400, angle adjusting part 500 and end face limiting part 600.

[0035] As Figure 1As shown, the base plate 100 adopts a rectangular long plate structure, and the base plate 100 is the base plate of the entire mold. The base plate 100 includes a rotation adjustment component 110, an angle fixing shaft 120 and a first adjustment mechanism (not shown in the figure). In this embodiment, a total of four rotation adjustment components 110 are provided on the base plate 100, and the four rotation adjustment components 110 are symmetrically distributed around the center. A rotation adjustment hole 111 is provided on the rotation adjustment component 110, and the first adjustment mechanism can be an adjustment screw. The adjustment screw passes through the rotation adjustment hole 111 and abuts against the frame of the angle adjustment part 500. The angle of the angle adjustment part 500 is adjusted by adjusting the adjustment screw and the rotation adjustment hole 111.

[0036] like Figure 1 As shown, the upper adjusting portion 200, the left adjusting portion 300 and the right adjusting portion 400 are movably connected to the bottom plate 100, respectively, and the upper adjusting portion 200, the left adjusting portion 300 and the right adjusting portion 400 together form an accommodating space 700. In this embodiment, the cross-section of the accommodating space 700 is π-shaped. Of course, in some other embodiments, the accommodating space 700 can also be other shapes, such as C-shaped, and this application does not limit this. The accommodating space 700 is used for pultrusion to produce the π-shaped structural connector inside the wind turbine blade. By moving the positions of the upper adjusting portion 200, the left adjusting portion 300 and the right adjusting portion 400 on the bottom plate 100, the cross-sectional size of the accommodating space 700 is changed, so as to change the size of the π-shaped structural connector inside the wind turbine blade. The molding mold of the present application adopts three parts to enclose the accommodating space for molding, which has higher precision. By adjusting the three parts separately, the size of the product to be produced can be changed. It is convenient and flexible. Only one set of molds can be used to produce π-shaped structural reinforcement parts with different cross-sectional shapes and sizes. When one of the three parts is damaged, only the damaged part needs to be replaced accordingly, which reduces the mold maintenance cost.

[0037] The upper adjustment part 200 includes an upper adjustment hole 210 and a fourth adjustment mechanism (not shown in the figure). The fourth adjustment mechanism can optionally include an adjusting screw, which passes through the upper adjustment hole 210 and abuts against the base plate 100. By adjusting the adjusting screw and the upper adjustment hole 210, the vertical position of the upper adjustment part 200 on the base plate 100 is changed to change the vertical size of the cross-section of the accommodating space 700, thereby changing the vertical size of the π-type structural connector produced.

[0038] In one embodiment, Figure 3As shown, the upper adjusting part 200 further comprises a plurality of upper adjusting fins 220, the left adjusting part 300 comprises a plurality of left adjusting fins 310, and the right adjusting part 400 comprises a plurality of right adjusting fins 410. The plurality of upper adjusting fins 220, the plurality of left adjusting fins 310, and the plurality of right adjusting fins 410 enclose the accommodation space 700. The fins and the corresponding adjusting part can be connected by welding, and the enclosed space formed by the intersecting fins has high flexibility and is convenient for size adjustment.

[0039] As shown in the figure, Figure 1 The angle adjusting part 500 is rotatably connected with the bottom plate 100, the left adjusting part 300 and the right adjusting part 400 are movably connected with the angle adjusting part 500, and by rotating the angle adjusting part 500, the inclination angle of the accommodation space 700 is changed to change the inclination angle of the π-shaped structure connecting piece inside the produced wind power blade.

[0040] As shown in the figure, Figure 2 In this embodiment, the angle adjusting part 500 comprises an angle adjusting hole 510, a left limiting assembly 520, a right limiting assembly 530, a second adjusting mechanism (not shown in the figure) and a third adjusting mechanism (not shown in the figure). The angle fixing shaft 120 on the bottom plate 100 passes through the angle adjusting hole 510, and by adjusting the first adjusting mechanism and the rotation adjusting hole 111, the angle adjusting hole 510 rotates around the angle fixing shaft 120 to change the inclination angle of the accommodation space 700, and then the inclination angle of the π-shaped structure connecting piece produced is changed.

[0041] The left limiting assembly 520 is provided with a left adjusting hole 521, and the second adjusting mechanism can be an adjusting screw. The adjusting screw passes through the left adjusting hole 521 and abuts against the side surface of the left adjusting part 300. By adjusting the second adjusting mechanism and the left adjusting hole 521, the position of the left adjusting part 300 in the horizontal direction of the angle adjusting part 500 is changed to change the size of the cross section of the accommodation space 700 in the horizontal direction, and then the size of the π-shaped structure connecting piece produced in the horizontal direction is changed.

[0042] The right limiting assembly 530 is provided with a right adjusting hole 531, and the third adjusting mechanism can be an adjusting screw. The adjusting screw passes through the right adjusting hole 531 and abuts against the side surface of the right adjusting part 400. By adjusting the third adjusting mechanism and the right adjusting hole 531, the position of the right adjusting part 400 in the horizontal direction of the angle adjusting part 500 is changed to change the size of the cross section of the accommodation space 700 in the horizontal direction, and then the size of the π-shaped structure connecting piece produced in the horizontal direction is changed.

[0043] In actual production, a servo motor can be used to control the first adjusting mechanism, the second adjusting mechanism and the third adjusting mechanism according to the size of the required π-shaped structure connecting piece for fine automatic adjustment, so as to save manpower and improve the product precision of the π-shaped structure connecting piece.

[0044] By means of the angle adjustment part 500 provided as above, not only can the inclination angle of the π-type structural connector be changed by rotating the angle adjustment part 500, but also the size of the π-type structural connector in the horizontal direction can be changed by moving the positions of the left adjustment part 300 and the right adjustment part 400 in the horizontal direction of the angle adjustment part 500, thereby realizing the inclination angle adjustment and horizontal size adjustment of the produced π-type structural connector.

[0045] like Figure 1 As shown, the end face limiting portion 600 is fixedly connected to the upper adjusting portion 200, and a bolt connection can be selected. The end face limiting portion 600 is used to press multiple upper adjusting fins 220, multiple left adjusting fins 310 and multiple right adjusting fins 410, so that the upper adjusting fins 220, the left adjusting fins 310 and the right adjusting fins 410 are tightly combined to improve the accuracy of the produced π-type structural connector.

[0046] According to an exemplary embodiment, Figure 1 As shown, another second aspect of the present application provides a method for forming a wind turbine blade connector, wherein the method uses any of the wind turbine blade connector forming molds described in the first aspect. The method is used to manufacture a wind turbine blade internal structure connector, and the method comprises:

[0047] The upper adjustment portion 200, left adjustment portion 300, and right adjustment portion 400 of the wind turbine blade connector forming mold are used to enclose a receiving space 700, which is then used to pultrude and form a wind turbine blade internal structural connector. By moving the upper adjustment portion 200, left adjustment portion 300, and right adjustment portion 400 on the base plate 100, the cross-sectional dimensions of the receiving space 700 are adjusted to meet the desired wind turbine blade internal structural connector size. In this embodiment, the cross-sectional dimensions of the receiving space 700 are π-shaped to produce a π-shaped structural connector that meets the desired requirements for wind turbine blade internal structural connectors.

[0048] In the wind turbine blade connector molding method, the wind turbine blade internal structural connector is made of a light-curing material. After the wind turbine blade internal structural connector is formed by pultrusion using the accommodation space 700, the wind turbine blade internal structural connector is cured using light curing. The use of a light-curing material facilitates rapid curing of the produced structural connector, thereby improving production efficiency.

[0049] Through the above-mentioned wind turbine blade connector forming method, only one set of molds can be used to produce π-shaped structural reinforcements with different cross-sectional shapes and sizes to meet the needs of different positions of the blade, thereby reducing production costs and improving production efficiency.

[0050] The wind turbine blade connector forming method of the present application has the following effects: Figure 4-Figure 6 shown.

[0051] Figure 4 By adjusting the horizontal positions of the left adjustment portion 300 and the right adjustment portion 400 on the bottom plate 100 , the horizontal dimension of the cross section of the accommodating space 700 is changed, thereby changing the width dimension of the produced π-shaped structural connector.

[0052] Figure 5 By adjusting the vertical position of the upper adjustment part 200 on the base plate 100, and by adjusting the horizontal positions of the left adjustment part 300 and the right adjustment part 400 on the base plate 100, the vertical and horizontal dimensions of the cross-section of the accommodating space 700 are changed, so that the height and width dimensions of the produced π-type structural connector are changed.

[0053] Figure 6 By adjusting the position of the upper adjustment part 200 in the vertical direction of the base plate 100, and by adjusting the positions of the left adjustment part 300 and the right adjustment part 400 in the horizontal direction of the base plate 100, and rotating the angle adjustment part 500, the vertical and horizontal dimensions of the cross-section of the accommodating space 700 and the inclination angle of the accommodating space 700 are changed, so that the height and width dimensions and the inclination angle of the produced π-type structural connector are changed.

[0054] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they may modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents; and such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the various embodiments of this disclosure.

Claims

1. A wind turbine blade connector forming die, characterized in that: The wind turbine blade connector forming mold is used to manufacture the wind turbine blade internal structure connector, including: a bottom plate, an upper adjustment part, a left adjustment part and a right adjustment part; The upper adjusting portion, the left adjusting portion and the right adjusting portion are respectively movably connected to the bottom plate; the upper adjusting portion, the left adjusting portion and the right adjusting portion together form an accommodating space, and the accommodating space is used for pultrusion molding to produce the internal structural connector of the wind turbine blade; By moving the positions of the upper adjusting portion, the left adjusting portion and the right adjusting portion on the bottom plate, the cross-sectional size of the accommodating space is changed, so as to change the size of the internal structural connector of the manufactured wind turbine blade; The wind turbine blade connector forming die also includes an angle adjustment portion; The angle adjustment portion is rotatably connected to the bottom plate, and the left adjustment portion and the right adjustment portion are movably connected to the angle adjustment portion respectively. By rotating the angle adjustment portion, the inclination angle of the accommodating space is changed, thereby changing the inclination angle of the internal structural connection member of the manufactured wind turbine blade; The angle adjustment portion includes a left limiting component, the left limiting component is provided with a left adjustment hole, and the position of the left adjustment portion in the horizontal direction of the angle adjustment portion is changed by adjusting the second adjustment mechanism and the left adjustment hole, so as to change the horizontal size of the cross-section of the accommodating space; and / or, The angle adjustment portion includes a right limiting component, the right limiting component is provided with a right adjustment hole, and the position of the right adjustment portion in the horizontal direction of the angle adjustment portion is changed by adjusting the third adjustment mechanism and the right adjustment hole, so as to change the horizontal size of the cross-section of the accommodating space; The upper adjusting portion includes a plurality of upper adjusting fins, the left adjusting portion includes a plurality of left adjusting fins, and the right adjusting portion includes a plurality of right adjusting fins; The upper adjusting portion, the left adjusting portion and the right adjusting portion together form the accommodating space, which includes: a plurality of the upper adjusting fins, a plurality of the left adjusting fins and a plurality of the right adjusting fins together form the accommodating space.

2. The wind turbine blade connector forming die according to claim 1, characterized in that: The base plate includes a rotation adjustment component and an angle fixing shaft, the rotation adjustment component includes a rotation adjustment hole, the angle adjustment portion includes an angle adjustment hole, and the angle fixing shaft passes through the angle adjustment hole; through adjustment of the first adjustment mechanism and the rotation adjustment hole, the angle adjustment hole rotates around the angle fixing shaft to change the inclination angle of the accommodating space.

3. The wind turbine blade connector forming die according to claim 1, characterized in that: The upper adjustment portion includes an upper adjustment hole. By adjusting the fourth adjustment mechanism and the upper adjustment hole, the position of the upper adjustment portion in the vertical direction of the bottom plate is changed to change the size of the cross section of the accommodating space in the vertical direction.

4. The wind turbine blade connector forming die according to claim 1, characterized in that: The wind turbine blade connector forming mold further includes an end face limiting portion, which is fixedly connected to the upper adjusting portion and is used to compress the plurality of upper adjusting fins, the plurality of left adjusting fins and the plurality of right adjusting fins.

5. The wind turbine blade connector forming die according to claim 1, characterized in that: The cross section of the accommodating space is π-shaped.

6. A method for forming a wind turbine blade connector, characterized in that: The wind turbine blade connector forming method uses the wind turbine blade connector forming mold according to any one of claims 1 to 5 to manufacture a wind turbine blade internal structure connector, and the wind turbine blade connector forming method includes: The upper adjusting part, the left adjusting part and the right adjusting part of the wind turbine blade connector forming mold are used to enclose a receiving space, and the receiving space is used to pultrusion-form the wind turbine blade internal structure connector; by moving the upper adjusting part, the left adjusting part and the right adjusting part on the base plate, the cross-sectional size of the receiving space is changed to change the size of the produced wind turbine blade internal structure connector to meet the needs of the produced wind turbine blade internal structure connector.

7. The method for forming a wind turbine blade connector according to claim 6, characterized in that: The method further comprises: The material of the wind turbine blade internal structure connector includes a light-curing material. After the wind turbine blade internal structure connector is manufactured by pultrusion molding using the accommodation space, the wind turbine blade internal structure connector is cured by light curing.

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