Turnover device for wind power generation blade

Abstract

The invention provides a wind power generation blade overturning device, and relates to the technical field of wind power generation blade overturning, the wind power generation blade overturning device comprises an erecting device, a fixed support and a movable support, the bottoms of the four corners of the movable support are connected with movable sleeves in a welded mode, and the interiors of the four movable sleeves are connected with stand columns in a sliding mode; second springs are arranged in the movable sleeves, a bottom frame is jointly welded to the bottoms of the four stand columns, and walking rolling wheels are assembled at the bottoms of the four corners of the bottom frame. According to the technical scheme, an erecting device at the top of a fixed support is controlled to rotate to drive wind power generation blades to rotate, and the ends, located at the top of a movable support, of the wind power generation blades drive the erecting device to rotate, so that the movable support is matched with a stand column through a movable sleeve and is supported by a second spring to move up and down; the erecting device moves in the horizontal direction by means of the four walking rollers at the bottom of the underframe, so that the rotating work of the wind power generation blade far away from one end mounted with the hub is adapted, and the operation is simple and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation blade flipping, and specifically to a flipping device for wind power generation blades. Background Art

[0002] Wind power generation refers to converting the kinetic energy of wind into mechanical kinetic energy and then into electrical kinetic energy. It is the rotation of the wind turbine under the action of wind, converting the kinetic energy of wind into the mechanical energy of the wind turbine shaft, and the generator rotates to generate electricity driven by the wind turbine shaft. It is an important form of wind energy utilization.

[0003] As an important component of the wind power generation system, a wind turbine generally includes components such as a wind wheel, a generator (including devices), a yaw device (tail fin), a tower, a speed limit safety mechanism, and an energy storage device. The wind wheel includes components such as blades, a hub, and reinforcement members.

[0004] The patent document with the publication number CN220922345U, a flipping device for wind turbine blades, by setting a flipping component, enables the blade to be placed into the movable wheel, clamped and fixed by the clamping component, and then one can hold the connecting ring and drive the movable wheel to rotate, so that the movable wheel rotates in the movable groove until the blade is flipped over. Using this device to flip the blade greatly reduces the usage cost compared to large machinery, and is also more convenient and hassle-free to use, greatly increasing the practicality of the device.

[0005] However, in the process of implementing the above technical solution, the following technical problems are found in the above technical solution:

[0006] When using this flipping device for wind turbine blades, it is more convenient to place the blade into the movable wheel for flipping. However, in actual application, both ends of the blade need to be clamped and fixed and then rotated synchronously. The shape of the blade is not square and not cylindrical. When flipping at one end using the existing flipping device, interference is likely to occur at the other end, making it inconvenient to use. Summary of the Invention

[0007] In order to overcome the deficiencies of the existing flipping devices for wind turbine blades. During actual application, both ends of the blade need to be clamped and fixed, and then rotated synchronously. However, the shape of the blade is not square and not cylindrical. When using the existing flipping device to flip at one end, interference is likely to occur at the other end, making it inconvenient to use. The embodiment of the present application provides a flipping device for wind power generation blades. By controlling the rotation of the erection device at the top of the fixed bracket to drive the rotation of the wind power generation blade, and one end of the wind power generation blade located at the top of the movable bracket can drive the erection device to rotate, enabling the movable bracket to move up and down in cooperation with the movable sleeve and the column and supported by the second spring. At the same time, with the help of the four walking rollers at the bottom of the chassis, the erection device can move horizontally, thus adapting to the rotation work of the end of the wind power generation blade far from the hub installation end, which is simple and convenient.

[0008] The technical solution adopted by the embodiment of the present application to solve its technical problems is as follows:

[0009] A flipping device for wind power generation blades, including an erection device, a fixed bracket, and a movable bracket, with two erection devices provided;

[0010] The movable bracket and the fixed bracket respectively carry two erection devices;

[0011] At the bottom of each of the four corners of the movable bracket, there is a welded connection with a movable sleeve. Inside each of the four movable sleeves, there is a slidable connection with a column. Inside the movable sleeve, there is a second spring located between the top of the column and the bottom of the movable bracket. At the bottom of the four columns, there is a common welded connection with a chassis, and at the bottom of each of the four corners of the chassis, there is an assembled connection with a walking roller;

[0012] Among them, both ends of the wind power generation blade are clamped and fixed by the two erection devices respectively. One erection device is erected by the fixed bracket, supporting the rotation of the wind power generation blade to drive the rotation of the other erection device at the top of the movable bracket. The chassis moves on the ground through the walking rollers, and the movable bracket slides up and down under the guidance of the movable sleeve and the column with the support of the second spring.

[0013] In a possible implementation manner, on the sides of the movable bracket and the fixed bracket facing each other, there is a welded connection with a movable notch, and the wind power generation blade is movably connected inside the movable notch.

[0014] In a possible implementation manner, the erection device is integrally cylindrical. On the tops of the fixed bracket and the movable bracket, there are first rollers symmetrically arranged on both sides of the erection device, and a second roller is provided at the bottom of the erection device; the two first rollers and one second roller are distributed in a triangle, and the first rollers and the second roller are in rolling connection with the outside of the erection device.

[0015] In a possible implementation, the erection device includes a snap ring and a support ring. The snap ring and the support ring form an entire circular ring. Two first springs are connected by welding at the inner wall of the support ring close to the snap ring. A support plate is connected by welding at the inner wall of the snap ring away from the support ring. A pressure plate is arranged between the support plate and the two first springs. Two first springs are arranged between the support plate and the pressure plate. Four pull rods are integrally formed inside the snap ring; the two first springs are respectively located at both ends of the axis of the support ring, the four pull rods are respectively located at the four corners of the support plate, the four pull rods are respectively slidably connected inside the four corners of the pressure plate, and one end of the pull rod passes through the inside of the bearing plate and is threadedly connected with a nut, so that the wind power generation blade is clamped between the pressure plate and the bearing plate.

[0016] In a possible implementation, two guide rods are arranged on the surface of the pressure plate away from the support ring. The two first springs are respectively sleeved and connected outside the two guide rods. The guide rods pass through the inside of the support plate and are slidably connected inside the snap ring.

[0017] In a possible implementation, a plurality of first annular grooves are processed in the middle of the four pull rods. A snap ring is clamped inside the first annular groove on the pull rod. The snap ring and the first spring are respectively located at the top and bottom of the pressure plate.

[0018] In a possible implementation, circular rings are integrally formed on the outer walls at both ends of the snap ring and the support ring. A second annular groove is formed on the surface of the rolling part of the second annular groove; the two circular rings are respectively located at both ends of the snap ring or both ends of the support ring, and the circular rings are located inside the second annular groove.

[0019] In a possible implementation, the four traveling rollers face the same direction, and the support chassis moves along a direction perpendicular to the axis of the erection device.

[0020] In a possible implementation, one end of the wind power generation blade for installation with the hub is clamped between the pressure plate at the top of the fixed bracket and the first spring, and the end of the wind power generation blade away from the connection with the hub is clamped between the pressure plate at the top of the movable bracket and the first spring.

[0021] The beneficial effects of this application are as follows:

[0022] First, in this solution, by controlling the rotation of the erection device at the top of the fixed bracket to drive the rotation of the wind power generation blade, and one end of the wind power generation blade located at the top of the movable bracket can drive the rotation of the erection device, so that the movable bracket can move up and down by the cooperation of the movable sleeve and the column and be supported by the second spring. At the same time, with the help of the four traveling rollers at the bottom of the chassis, the erection device can move horizontally, so as to adapt to the rotation work of the end of the wind power generation blade away from the installation with the hub, which is simple and convenient;

[0023] Second, in this solution, by placing one end of the wind power generation blade between the pressing plate and the bearing plate, after the pull rod passes through the inside of the bearing plate and is threadedly connected to the nut, the wind power generation blade can be clamped and fixed by means of the pressing plate and the bearing plate, and the first spring between the supporting plate and the pressing plate is compressed, which is beneficial to ensuring that the buckle ring and the supporting ring are completely buckled. Description of the Drawings

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention in the use state;

[0025] Figure 2 is a schematic diagram of the connection structure of the erection device and the fixed bracket of the present invention;

[0026] Figure 3 is a schematic diagram of the connection structure of the erection device and the movable bracket of the present invention;

[0027] Figure 4 For the present invention Figure 3 is an enlarged schematic view of part A in;

[0028] Figure 5 is a schematic diagram of the structure of the buckle ring of the present invention;

[0029] Figure 6 For the present invention Figure 5 is an enlarged schematic view of part B in.

[0030] Reference Signs: 1, Erection Device; 101, Buckle Ring; 102, Supporting Ring; 103, Pressing Plate; 104, Ring; 105, Guide Rod; 106, First Spring; 107, Pull Rod; 108, Bearing Plate; 109, Supporting Plate; 110, Nut; 111, Snap Ring; 2, Wind Power Generation Blade; 3, First Ring Groove; 4, Fixed Bracket; 5, First Roller; 6, Movable Notch; 7, Second Roller; 8, Movable Bracket; 9, Movable Sleeve; 10, Column; 11, Underframe; 12, Traveling Roller; 13, Second Ring Groove; 14, Second Spring. Detailed Embodiments

[0031] The technical solutions in the embodiments of the present application are to solve the problems in the above background technology, and the general idea is as follows:

[0032] Embodiment 1:

[0033] This embodiment introduces the specific structure of a flipping device for a wind power generation blade. Specifically, refer to Figures 1 - 4As shown, it includes two erection devices 1, a fixed bracket 4 and a movable bracket 8. At the bottom of each of the four corners of the movable bracket 8, there is a movable sleeve 9 connected by welding. Inside each of the four movable sleeves 9, there is a column 10 connected in a sliding manner. Inside the movable sleeve 9, there is a second spring 14 located between the top of the column 10 and the bottom of the movable bracket 8. At the bottom of the four columns 10, there is a common chassis 11 welded. At the bottom of each of the four corners of the chassis 11, there is a traveling roller 12 connected in an assembled manner;

[0034] Among them, the erection device 1 is integrally cylindrical. At the top of the fixed bracket 4 and the movable bracket 8, there are first rollers 5 symmetrically arranged on both sides of the erection device 1. At the bottom of the erection device 1, there is a second roller 7. By making the two first rollers 5 and one second roller 7 distributed in a triangular shape, during the process of using the first rollers 5 and the second roller 7 to support the erection device 1, the first rollers 5 and the second roller 7 can be connected in a rolling manner to the outside of the erection device 1;

[0035] Secondly, the movable bracket 8 and the fixed bracket 4 are respectively equipped with two erection devices 1. By making the orientations of the four traveling rollers 12 the same and supporting the chassis 11 to move along the direction perpendicular to the axis of the erection device 1, when both ends of the wind power generation blade 2 are clamped and fixed by two erection devices 1 respectively, one erection device 1 is erected by the fixed bracket 4, and the support wind power generation blade 2 rotates to drive the other erection device 1 to rotate on the top of the movable bracket 8. In this state, in order to prevent the wind power generation blade 2 from being interfered by the fixed bracket 4 and the movable bracket 8 during the rotation process, on the side where the movable bracket 8 and the fixed bracket 4 face each other, there is a movable notch 6 connected by welding, so that the wind power generation blade 2 is movably connected inside the movable notch 6, which can ensure the smooth flipping of the wind power generation blade 2;

[0036] Furthermore, in order to enable the wind power generation blade 2 to rotate actively after being clamped by the erection device 1 at the top of the fixed bracket 4 without being affected by the other erection device 1 that is not clamped and fixed, as Figure 3 shown, the chassis 11 moves on the ground through the traveling rollers 12. The movable bracket 8 is supported by the second spring 14 and guided by the movable sleeve 9 and the column 10 to slide up and down, which can enable the end of the wind power generation blade 2 located at the top of the movable bracket 8 to flip within a large range.

[0037] The above design is supported by arranging a second roller 7 and a first roller 5 at the lower half of the erection device 1. When one end of the wind power blade 2 for hub installation is clamped inside the erection device 1 at the top of the fixed bracket 4, and the other end is clamped inside the erection device 1 at the top of the movable bracket 8, the erection device 1 at the top of the fixed bracket 4 can be controlled to rotate to drive the wind power blade 2 to rotate. And one end of the wind power blade 2 located at the top of the movable bracket 8 drives the erection device 1 to rotate, facilitating the up-and-down movement of the movable bracket 8 in cooperation with the movable sleeve 9 and the column 10 and supported by the second spring 14. At the same time, with the help of the four traveling rollers 12 at the bottom of the chassis 11, the erection device 1 can move horizontally, so as to adapt to the rotation work of the end of the wind power blade 2 far from the hub installation, and there will be no problem of interference due to the clamping of the end of the wind power blade 2 far from the hub installation by the erection device 1.

[0038] Embodiment 2:

[0039] Based on Embodiment 1, this embodiment introduces the specific structure of the erection device 1, as Figures 2 to 6 shown, the erection device 1 includes a snap ring 101 and a support ring 102. The snap ring 101 and the support ring 102 form the entire ring. Two first springs 106 are welded and connected to the inner wall of the support ring 102 close to the snap ring 101. A support plate 109 is welded and connected to the inner wall of the snap ring 101 far from the support ring 102. A pressure plate 103 is arranged between the support plate 109 and the two first springs 106, and two first springs 106 are arranged between the support plate 109 and the pressure plate 103. Four pull rods 107 are integrally formed inside the snap ring 101;

[0040] Among them, the two first springs 106 are respectively located at both ends of the axis of the support ring 102. The four pull rods 107 are respectively located at the four corners of the support plate 109. The four pull rods 107 are respectively slidably connected to the inside of the four corners of the pressure plate 103. One end of the pull rod 107 passes through the inside of the bearing plate 108 and is threadedly connected to a nut 110. When one end of the wind power blade 2 is placed between the pressure plate 103 and the bearing plate 108, by adjusting the threaded connection between the nut 110 and the pull rod 107, when the pressure plate 103 compresses the first spring 106 between the surfaces of the support plate 109, one end of the wind power blade 2 is clamped and fixed;

[0041] At the same time, in order to avoid damage to both ends of the wind power blade 2 when being clamped, protective rubber pads and cotton pads can be pasted on the mutually facing surfaces of the pressure plate 103 and the bearing plate 108 to play a protective role;

[0042] Secondly, in order to guide the compression and reset of the first spring 106 between the support plate 109 and the pressure plate 103, as Figure 2As shown in the figure, two guide rods 105 are provided on one side surface of the pressing plate 103 away from the support ring 102. By sleeving two first springs 106 on the outside of the two guide rods 105 respectively, the guide rods 105 pass through the inside of the pallet 109 and are slidably connected to the inside of the snap ring 101, which can provide effective support inside the first spring 106 and prevent the first spring 106 from bending in the middle;

[0043] At the same time, one end of the wind power blade 2 for mounting with the hub is clamped between the pressing plate 103 and the first spring 106 at the top of the fixed bracket 4, and one end of the wind power blade 2 away from the connection with the hub is clamped between the pressing plate 103 and the first spring 106 at the top of the movable bracket 8;

[0044] In some examples, circular rings 104 are integrally formed on the outer walls at both ends of the snap ring 101 and the support ring 102, and a second ring groove 13 is formed on the surface of the rolling part of the second ring groove 13;

[0045] Among them, by making the two circular rings 104 located at both ends of the snap ring 101 or both ends of the support ring 102 respectively, when the circular rings 104 are located inside the second ring groove 13, when the erection device 1 rotates supported by the first roller 5 and the second roller 7, the movement of the erection device 1 in its axial direction can be restricted, ensuring that the erection device 1 is stably erected on the top of the fixed bracket 4 or the movable bracket 8;

[0046] In some examples, a plurality of first ring grooves 3 are machined in the middle of the four pull rods 107. A snap ring 111 is clamped inside the first ring groove 3 on the pull rod 107. The snap ring 111 and the first spring 106 are respectively located at the top and bottom of the pressing plate 103. By adjusting the snap ring 111 to be clamped into different first ring grooves 3, the degree of compression of the first spring 106 when the pressing plate 103 and the bearing plate 108 do not clamp the wind power blade 2 can be adjusted, which is convenient for the pull rod 107 to pass through the inside of the bearing plate 108 and be threadedly connected with the nut 110.

[0047] The above design forms a circular ring by buckling the snap ring 101 on the top of the support ring 102, and one end of the wind power blade 2 is located between the pressing plate 103 and the bearing plate 108. When the pull rod 107 passes through the inside of the bearing plate 108 and is threadedly connected with the nut 110, the wind power blade 2 can be clamped and fixed by means of the pressing plate 103 and the bearing plate 108. In this state, the first spring 106 between the pallet 109 and the pressing plate 103 is compressed, which is beneficial to ensure that the snap ring 101 and the support ring 102 are fully buckled.

[0048] Finally, it should be noted that: Obviously, the above embodiments are merely examples given to clearly illustrate the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A flipping device for a wind power generation blade, characterized in that, Comprising: Two erection devices (1); A fixed bracket (4); A movable bracket (8) which, together with the fixed bracket (4), carries two erection devices (1); At the bottom of each of the four corners of the movable bracket (8), there is a welded connection with a movable sleeve (9). Inside each of the four movable sleeves (9), there is a slidable connection with a column (10). Inside the movable sleeve (9), there is a second spring (14) located between the top of the column (10) and the bottom of the movable bracket (8). At the bottom of the four columns (10), there is a common welded connection with a chassis (11). At the bottom of each of the four corners of the chassis (11), there is an assembled connection with a traveling roller (12); Among them, both ends of the wind power blade (2) are clamped and fixed by two of the erection devices (1). One erection device (1) is erected by the fixed bracket (4) to support the rotation of the wind power blade (2), driving the other erection device (1) to rotate on the top of the movable bracket (8). The chassis (11) moves on the ground through the traveling rollers (12). The movable bracket (8), supported by the second spring (14), slides up and down under the guidance of the movable sleeve (9) and the column (10).

2. The flipping device for a wind power generation blade according to claim 1, wherein: On one side of the movable bracket (8) and the fixed bracket (4) facing each other, there is a welded connection with a movable notch (6). The wind power blade (2) is movably connected inside the movable notch (6).

3. The flipping device of a wind power blade according to claim 1, characterized in that: The erection device (1) is integrally cylindrical. At the top of the fixed bracket (4) and the movable bracket (8), there are first rollers (5) symmetrically arranged on both sides of the erection device (1). At the bottom of the erection device (1), there is a second roller (7); Among them, the two first rollers (5) and one second roller (7) are triangularly distributed, and the first rollers (5) and the second roller (7) are in rolling connection with the outside of the erection device (1).

4. The flipping device for a wind power generation blade according to claim 1, characterized in that: The erection device (1) includes a snap ring (101) and a support ring (102). The snap ring (101) and the support ring (102) form an entire ring. At the inner wall of the support ring (102) close to the snap ring (101), there are two welded connections with first springs (106). At the inner wall of the snap ring (101) away from the support ring (102), there is a welded connection with a support plate (109). Between the support plate (109) and the two first springs (106), there is a pressure plate (103). Between the support plate (109) and the pressure plate (103), there are two first springs (106). Inside the snap ring (101), there are four integrally formed pull rods (107); Among them, the two first springs (106) are respectively located at both ends of the axis of the support ring (102). The four pull rods (107) are respectively located at the four corners of the support plate (109). The four pull rods (107) are respectively slidably connected inside the four corners of the pressure plate (103). One end of the pull rod (107) passes through the inside of the bearing plate (108) and is threadedly connected with a nut (110), so that the wind power blade (2) is clamped between the pressure plate (103) and the bearing plate (108).

5. The flipping device of a wind power blade according to claim 4, characterized in that: On one side surface of the pressing plate (103) away from the support ring (102), two guide rods (105) are provided. Two of the first springs (106) are respectively sleeved and connected to the outsides of the two guide rods (105). The guide rods (105) pass through the inside of the support plate (109) and are slidably connected to the inside of the snap ring (101).

6. The turnover device of a wind power blade according to claim 4, characterized in that: Multiple first annular grooves (3) are machined in the middle of the four pull rods (107). A snap ring (111) is clamped inside the first annular groove (3) on the pull rod (107). The snap ring (111) and the first spring (106) are respectively located at the top and bottom of the pressing plate (103).

7. The turnover device of a wind power blade according to claim 4, characterized in that: Rings (104) are integrally formed on the outer walls at both ends of the snap ring (101) and the support ring (102). A second annular groove (13) is formed on the surface of the rolling part of the second annular groove (13); Among them, the two rings (104) are respectively located at both ends of the snap ring (101) or both ends of the support ring (102). The ring (104) is located inside the second annular groove (13).

8. The flipping device for a wind power generation blade according to claim 1, characterized in that: The four traveling rollers (12) face the same direction, and the support chassis (11) moves along a direction perpendicular to the axis of the erection device (1).

9. The flipping device for a wind power generation blade according to claim 4, characterized in that: One end of the wind power generation blade (2) for being mounted on the hub is clamped between the pressing plate (103) and the first spring (106) at the top of the fixed bracket (4). The end of the wind power generation blade (2) away from the connection with the hub is clamped between the pressing plate (103) and the first spring (106) at the top of the movable bracket (8).

Images