Supporting tool for preventing deformation of blade root end of ultra-large blade

Abstract

The utility model discloses a supporting tool for preventing deformation of the blade root end of an ultra-large blade, and relates to the field of wind power equipment. A supporting tool for preventing deformation of the blade root end of an ultra-large blade comprises eight supporting arms, the eight supporting arms are evenly arranged according to 45 degrees, the inner sides of the eight supporting arms are connected, and the outer sides of the eight supporting arms are connected to form a circle; the number of the fixing plates is eight, the fixing plates are connected to the outer sides of the supporting arms, and mounting holes are formed in the fixing plates; the eight groups of tool bolts are uniformly arranged according to 45 degrees, and the tool bolts are in threaded connection with the end part of the blade root; the supporting arm is arranged in the blade root, the fixing plate is connected to the end of the blade root, and the tool bolt penetrates through the mounting hole and is in threaded connection to the end of the blade root. The method has the effects that the quality of finished blade roots is guaranteed, and the blade roots are prevented from deforming in the transportation and barge pouring process.

Description

Technical Field

[0001] The invention relates to the field of wind power equipment, and in particular to a support tooling for preventing deformation of a root end of an ultra-large blade. Background Art

[0002] At present, the scale of offshore wind turbines is getting larger and larger, and the size of wind turbine blades is developing towards large-scale. The root area of ​​the blade, as the docking point with the hub of the whole machine, is subjected to complex loads such as tension, compression, torsion, and shear, so the root of the blade is required to have good rigidity and strength.

[0003] At present, when transporting blades, a transport fixture is arranged at the root of the blade. The transport fixture is generally a simple bracket connected to the blade root flange through the fixture bolts. It has no ability to resist deformation. When the blades are transported by transport ships, there is a risk of deformation of the pitch circle of the blade root bolts. Large wind turbine blades and hubs are connected by bolts, with a large number of bolts and dense gaps. If the blade root is severely deformed, most of the bolts will not be able to dock with the hub at high altitude, which will affect the installation efficiency and service life of wind power equipment.

[0004] Therefore, it is necessary to develop a support tooling for preventing deformation of the root end of an extra-large blade to ensure the quality of the finished blade and prevent the blade root from deforming during transportation and rebarge. Summary of the invention

[0005] In order to ensure the quality of the finished blade root and prevent the blade root from deforming during transportation and reversing, the present application provides a support tooling for preventing the blade root end of an ultra-large blade from deforming.

[0006] The present application provides a super-large blade root end anti-deformation support tooling adopts the following technical solution:

[0007] A support tool for preventing deformation of the root end of an ultra-large blade, comprising:

[0008] Support arms, wherein eight support arms are provided and are evenly arranged at 45 degrees, the inner sides of the eight support arms are connected, and the outer sides of the eight support arms are connected to form a circle;

[0009] A fixing plate, eight of which are provided, connected to the outer side of the support arm, and provided with a mounting hole;

[0010] Tool bolts, which are provided in 8 groups and are evenly arranged at 45 degrees, and are threadedly connected to the blade root end;

[0011] The support arm is arranged in the blade root, the fixing plate is connected to the end of the blade root, and the tooling bolt passes through the mounting hole and is threadedly connected to the end of the blade root.

[0012] By adopting the above technical solution, multiple support arms and fixing plates can be set up to support the blade root end from multiple angles, ensuring a more comprehensive support range for the blade root and making the support force on the blade root more evenly distributed. The tooling bolts detachably connect the fixing plate and the blade root end. When the tooling bolts are fixed, the tightening force of the tooling bolts is used to resist the contraction of the blade root. The support arms provide support for the blade root end to prevent the blade from deforming during transportation and reversing, ensure the high-altitude docking of the blade with the hub of the whole machine, and improve the quality of the finished blade.

[0013] Optionally, the fixing plate is connected to a pressing portion, and the pressing portion abuts against an inner wall of the blade root.

[0014] By adopting the above technical solution, the inner wall of the blade root is pressed against the inner wall of the blade root by the pressing part, thereby further enhancing the ability to resist deformation and contraction of the blade root.

[0015] Optionally, the pressing portion comprises a mounting block, the mounting block is connected to an elastic member, one end of the elastic member away from the mounting block is connected to a pressing pad, and the pressing pad abuts against an inner wall of the blade root.

[0016] By adopting the above technical solution, the arrangement of the elastic member and the compression pad enables the compression pad to abut against the inner wall of the blade root, and the compression of the inner wall of the blade root end by the compression pad prevents the inner wall of the blade root from shrinking and deforming.

[0017] Optionally, support rods are connected between the support arms, and a plurality of the support rods can be combined into a regular octagon or a regular quadrilateral.

[0018] By adopting the above technical solution, the setting of the support rod enhances the connection stability between the support arms, which is beneficial to improving the connection tightness of the supporting tooling.

[0019] Optionally, the inner sides of the eight support arms are commonly connected to a central disk.

[0020] By adopting the above technical solution, the arrangement of the central disk enables the eight support arms to be centrally connected, thereby improving the strength of the support device.

[0021] Optionally, the support arm is rotatably connected to the center disk, the support arm is hinged to the fixing plate, and the fixing plate can move radially along the circle of the blade root end.

[0022] By adopting the above technical solution, through the hinges at both ends of the support arm, when the center disk moves radially perpendicular to the circle of the blade root end, the fixed plate will move radially along the circle of the blade root end, so that the distance between the fixed plate and the center of the center disk can be adjusted, which is convenient to adapt to blade root ends of different diameters and adapt to different models of fan blades.

[0023] Optionally, connecting rods are provided between the fixing plates.

[0024] By adopting the above technical solution, the setting of the connecting rod enhances the connection stability between the fixing plates.

[0025] Optionally, the fixing plate is connected to a lifting ring, and the lifting ring is used to connect a traction rope.

[0026] By adopting the above technical solution and setting the lifting ring, it is convenient to lift and transport the supporting tooling.

[0027] In summary, this application has the following beneficial effects:

[0028] Setting up multiple support arms and fixing plates can support the blade root end from multiple angles, ensuring a more comprehensive support range for the blade root and a more even distribution of the support force on the blade root. The tooling bolts detachably connect the fixing plate and the blade root end. When the tooling bolts are fixed, the tightening force of the tooling bolts resists the contraction of the blade root. The support arms provide support for the blade root end to prevent deformation of the blade during transportation and reversing, ensure the high-altitude docking of the blade with the hub of the whole machine, and improve the quality of the finished blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of the support tooling and blade root installation in Example 1 of the present application;

[0030] Figure 2 This is a schematic diagram of the overall structure of the supporting tooling of Example 2 of the present application;

[0031] Figure 3 This is a schematic structural diagram of the supporting tooling of Example 2 of the present application from another angle.

[0032] Description of reference numerals:

[0033] 1. Support arm; 11. Support rod; 2. Fixing plate; 21. Mounting hole; 22. Connecting rod; 3. Fixing bolt; 4. Blade root; 5. Clamping part; 51. Mounting block; 52. Elastic part; 53. Clamping pad; 6. Center plate; 7. Lifting ring; DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-3 This application is described in further detail.

[0035] Example 1

[0036] The present application embodiment discloses a support tool for preventing deformation of the root end of an ultra-large blade. Figure 1A support tooling for preventing deformation of the root end of an extra-large blade comprises a plurality of support arms 1, the inner sides of the plurality of support arms 1 are connected to each other, the outer sides of the plurality of support arms 1 are connected to a fixing plate 2, the fixing plate 2 is provided with a mounting hole 21, a plurality of sets of tooling bolts 3 are threadedly connected to the end of a blade root 4, the tooling bolts 3 are connected to the fixing plate 2, and the position of the tooling bolts 3 on the blade corresponds to the bolt docking position of the hub.

[0037] When the blade root 4 is supported by the supporting tooling, the supporting arm 1 is arranged inside the end of the blade root 4, the fixing plate 2 abuts against the blade root 4, the tooling bolt 3 passes through the mounting hole 21 and is threadedly connected to the end of the blade root 4, and the contraction of the blade root 4 is resisted by the tightening force of the tooling bolt 3, thereby preventing the blade from being deformed during transportation and reversing, ensuring the high-altitude docking of the blade with the hub of the entire machine, and improving the quality of the finished blade.

[0038] In the present application, the number of support arms 1 and fixing plates 2 is eight, and the eight support arms 1 are evenly arranged at an angle of 45°. The outer side of the fixing plate 2 is set to be an arc shape, and the outer sides of the eight fixing plates 2 are connected to form a circle, and adapted to the end of the blade root 4. The support arm 1 is set to be an integrated fixing rod, wherein a support rod 11 is connected between adjacent support arms 1, and the support rods 11 are combined to form a regular octagon. By setting eight evenly distributed support arms 1 and fixing plates 2, it is ensured that the support range of the blade root 4 is more comprehensive, and the support force of the blade root 4 is more evenly distributed.

[0039] The inner sides of the eight support arms 1 are centrally connected with a center plate 6. In a preferred embodiment, the center plate 6 is hinged to the support arm 1, and the outer side of the support arm 1 is hinged to the fixing plate 2. The center plate 6 can move in a direction perpendicular to the radial direction of the end of the blade root 4 by being hinged at both ends, and the support arm 1 is tilted by the movement. At this time, the length direction of the support arm 1 forms an inclination angle with the direction of the end of the blade root 4, and the fixing plate 2 will move along the radial direction of the end of the blade root 4, so as to adapt to the ends of the blade root 4 with different diameters.

[0040] Connecting rods 22 are provided between adjacent fixing plates 2 to enhance the connection stability of the fixing plates 2 .

[0041] A pressing portion 5 for pressing against the inner wall of the blade root 4 is connected to one side of the fixing plate 2 close to the end of the blade root 4 , so as to further prevent the blade root 4 from shrinking and deforming.

[0042] The implementation principle of the support fixture for preventing deformation of the root end of a super-large blade in the embodiment of the present application is as follows: the support arm 1 is placed inside the end of the blade root 4, the fixing plate 2 is connected to the end of the blade root 4, the pressing pad 53 is abutted against the inner wall of the blade root 4, and the fixture bolt 3 is passed through the mounting hole 21 and threadedly connected to the end of the blade root 4 to fix the support fixture. During the transportation and reversing process, the end of the blade root 4 is reinforced with a support fixture to prevent deformation of the blade root 4. After the blade is reversing to the installation platform, the fixture bolt 3 can be symmetrically disassembled, and finally the wind turbine blade hoisting construction can be carried out.

[0043] Embodiment 2

[0044] In this embodiment, refer to Figure 2 and Figure 3 The support arm 1 includes two parallel support plates connected to the two ends of the fixed plate 2, wherein the inner sides of two opposite support arms 1 are connected as a whole, and the inner sides of the remaining support arms 1 are symmetrically connected to the above-mentioned two opposite arms.

[0045] The eight support arms 1 are interconnected with support rods 11 , and connecting the support rods 11 can form a regular quadrilateral, thereby ensuring structural stability and enhancing the connection tightness of the support arms 1 .

[0046] The pressing part 5 includes a mounting block 51, an elastic member 52 and a pressing pad 53, wherein the mounting block 51 is connected to the elastic member 52, one end of the elastic member 52 away from the mounting block 51 is connected to the pressing pad 53, and the pressing pad 53 abuts against the inner wall of the blade root 4. The elastic member 52 is configured as a spring, and the pressing pad 53 can provide pressure to the inner wall of the blade root 4 through the configuration of the spring, thereby supporting the blade root 4.

[0047] A lifting ring 7 is connected to the fixing plate 2, and the lifting ring 7 is used to connect a traction rope to facilitate lifting and transporting the supporting tooling.

[0048] This specific implementation manner is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the specific implementation manner as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A support tool for preventing deformation of the root end of an ultra-large blade, characterized in that: include: Support arms (1), wherein eight support arms (1) are provided and are evenly arranged at 45°, the inner sides of the eight support arms (1) are connected, and the outer sides of the eight support arms (1) are connected to form a circle; A fixing plate (2), eight fixing plates (2) are provided, the fixing plates (2) are connected to the outer side of the support arm (1), and the fixing plates (2) are provided with mounting holes (21); Fixture bolts (3), wherein the fixture bolts (3) are provided in 8 groups and are evenly arranged at 45 degrees, and the fixture bolts (3) are threadedly connected to the end of the blade root (4); The support arm (1) is arranged in the blade root (4), the fixing plate (2) is connected to the end of the blade root (4), and the tooling bolt (3) passes through the mounting hole (21) and is threadedly connected to the end of the blade root (4).

2. The support tooling for preventing deformation of the root end of a super-large blade according to claim 1 is characterized by: The fixing plate (2) is connected to a pressing portion (5), and the pressing portion (5) is in contact with the inner wall of the blade root (4).

3. The support tooling for preventing deformation of the root end of a super-large blade according to claim 2 is characterized in that: The abutting portion (5) comprises a mounting block (51), the mounting block (51) is connected to an elastic member (52), one end of the elastic member (52) away from the mounting block (51) is connected to a pressure pad (53), and the pressure pad (53) abuts against the inner wall of the blade root (4).

4. The support tooling for preventing deformation of the root end of a super-large blade according to claim 1 is characterized by: Support rods (11) are connected between the support arms (1), and a plurality of the support rods (11) can be combined into a regular octagon or a regular quadrilateral.

5. The support tooling for preventing deformation of the root end of a super-large blade according to claim 1, characterized in that: The inner sides of the eight support arms (1) are commonly connected to a central disk (6).

6. The support tooling for preventing deformation of the root end of a super-large blade according to claim 5, characterized in that: The support arm (1) is rotatably connected to the central disk (6), and the support arm (1) is hinged to the fixing plate (2). The fixing plate (2) can move radially along the circle of the end of the blade root (4).

7. The support tooling for preventing deformation of the root end of a super-large blade according to claim 1, characterized in that: A connecting rod (22) is arranged between the fixing plates (2).

8. The support tool for preventing deformation of the root end of a super-large blade according to claim 1, characterized in that: The fixing plate (2) is connected with a lifting ring (7), and the lifting ring (7) is used for connecting a traction rope.

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