A wind turbine blade support

Abstract

This utility model discloses a wind turbine blade support, relating to the technical field of wind turbine blade support equipment. It addresses the problem that even with limited restraints, wind turbine blades can still be damaged by swaying during transportation. The proposed technical solution includes a first fixed frame with a first receiving cavity at its top and a second receiving cavity inside. Symmetrical grooves are formed on the inner wall of the first receiving cavity. Each of the symmetrically arranged grooves contains a slider for fixing the bottom of the wind turbine blade. Each slider is hinged to the top end of a first L-shaped swing arm symmetrically arranged in the second receiving cavity. The bottom end of the symmetrically arranged first L-shaped swing arm is hinged to a telescopic cylinder located in the second receiving cavity. A mounting plate is provided between the first and second receiving cavities, and the rotating middle portion of the first L-shaped swing arm is rotatably connected to the mounting plate. This utility model effectively reduces impact damage to wind turbine blades, protecting them.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine blade support equipment, specifically to a wind turbine blade bracket. Background Technology

[0002] Wind turbines consist of multiple wind turbine blades. To ensure the safety and performance of these blades, they require support structures for stable placement during transportation and storage. This is especially crucial for long-distance transport. However, current transport supports only protect the tips and ends of the blades, lacking sufficient support for the middle section, resulting in a higher risk of damage during transport.

[0003] A wind turbine blade support disclosed in application number 202121457305.7 includes a support main plate connected to a carrier frame via guide rods to support the middle of the wind turbine blade. Support auxiliary plates supporting the ends of the wind turbine blade are hinged to both sides of the support main plate. After placing the middle of the wind turbine blade on the support main plate, the two support auxiliary plates are adjusted to contact and fix with the ends of the wind turbine blade. The height of the wind turbine blade is then adjusted via the carrier frame to meet the height requirements of transportation or the vehicle body. This wind turbine blade support is used to place the wind turbine blade. However, the overall shape of the wind turbine blade is streamlined, and its edges have a multi-arc design. The support main plate can only provide simple restraint and cannot address the problem of swaying and shaking during transportation. Utility Model Content

[0004] This utility model provides a wind turbine blade support, the purpose of which is to actively limit the movement of wind turbine blades during transportation and reduce the frequency of swaying and shaking.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A wind turbine blade support includes a first fixing frame, a first receiving cavity for accommodating a wind turbine blade at the top of the first fixing frame, a second receiving cavity inside the first fixing frame, symmetrically arranged grooves on the inner wall of the first receiving cavity, and the first receiving cavity communicating with the second receiving cavity through the grooves; each of the symmetrically arranged grooves is provided with a slider for fixing the bottom of the wind turbine blade, each slider is hinged to the top end of a first L-shaped swing rod symmetrically arranged in the second receiving cavity, the bottom end of the symmetrically arranged first L-shaped swing rod is hinged to a telescopic cylinder arranged in the second receiving cavity, an mounting plate is provided between the first receiving cavity and the second receiving cavity, and the middle rotating part of the first L-shaped swing rod is rotatably connected to the mounting plate.

[0007] Furthermore, an extension rod is provided between the rotating part in the middle of the first L-shaped rocker arm and the cylinder connection end. The extension rod is hinged to the buffer ring through a connecting rod. A support plate is provided at the bottom of the first receiving cavity. A limiting post is connected to the bottom of the support plate. The limiting post is set at the top of the second receiving cavity. The buffer ring is sleeved on the limiting post.

[0008] Furthermore, a second fixed frame is also provided on the top of the first fixed frame, and a third receiving cavity is opened at the bottom of the second fixed frame. The first receiving cavity and the third receiving cavity together form the wind turbine blade receiving cavity.

[0009] Furthermore, a fourth accommodating cavity is symmetrically opened on the opposite side of the third accommodating cavity, and each fourth accommodating cavity is equipped with a spring, which is connected to a second L-shaped swing arm for fixing the top of the wind turbine blade.

[0010] Furthermore, the first fixing frame has symmetrical mounting slots on both sides, and the second fixing frame has symmetrical locking slots on both sides. A rotating component is installed in the mounting slot, and a rotating rod is fixed on the rotating component. A through hole is opened on the rotating rod, and a threaded hole corresponding to the through hole on the rotating rod is opened in the locking slot.

[0011] Furthermore, the fixed surfaces of the slider and the second L-shaped swing arm that contact the wind turbine blades are provided with a silicone anti-slip layer.

[0012] This utility model has the following beneficial effects:

[0013] This invention uses a telescopic cylinder to drive the first L-shaped swing arm to swing, which in turn moves the slider within the groove, thereby fixing the bottom of the wind turbine blade. The middle part of the first L-shaped swing arm is rotatably connected to the mounting plate, forming a stable lever structure and enhancing the stability of the fixation.

[0014] The extension rod of the first L-shaped swing arm is hinged to a buffer ring via a connecting rod, and the buffer ring is fitted onto the limiting post. When the wind turbine blade is subjected to external impact or vibration, the first L-shaped swing arm is impacted by the wind turbine blade. At this time, the impact force is transmitted to the buffer ring through the first L-shaped swing arm. The buffer ring can move on the limiting post. Utilizing the low friction between the buffer ring and the limiting post and the buffering effect of the telescopic cylinder, the swaying of the first L-shaped swing arm is effectively reduced, thus achieving a limiting function.

[0015] The third receiving cavity sidewall of the second fixing frame is equipped with a spring and a second L-shaped swing rod, which can fix the top of the wind turbine blade and cooperate with the bottom fixing to ensure that the wind turbine blade is stably fixed in all directions within the bracket. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure for mounting wind turbine blades on the first and second fixing frames provided in this embodiment of the utility model;

[0017] Figure 2A schematic diagram of the installation of the first and second fixing frames provided in this embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the first fixing frame provided in an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the second fixing frame provided in an embodiment of the present utility model;

[0020] Figure 5 A cross-sectional view of the mounting structure of the limiting post and the buffer ring provided in an embodiment of this utility model;

[0021] Figure 6 This is a schematic diagram of the first L-shaped pendulum.

[0022] Figures 1 to 6 The reference numerals in the attached drawings represent: first fixed frame 1, slide groove 2, support plate 3, limiting post 4, slider 5, buffer ring 6, telescopic cylinder 7, first L-shaped swing arm 8, central rotating part 81, cylinder connecting end 82, extension rod 9, connecting rod 10, second fixed frame 11, locking groove 12, mounting groove 13, rotating rod 14, screw 15, rotating part 16, wind turbine blade 17, first receiving cavity 101, second receiving cavity 102, mounting plate 103, third receiving cavity 104, fourth receiving cavity 105, spring 106, and second L-shaped swing arm 107. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] In this utility model, the terms "longitudinal," "lateral," "vertical," "upper," "lower," "front," "rear," "left," "right," "top," and "bottom," etc., indicate the orientation or positional relationship based on the appendix. Figure 2 The orientation or positional relationship shown is for the purpose of describing the present invention only, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0025] Please refer to Figure 1-6 This utility model provides a wind turbine blade support, the specific implementation of which is as follows:

[0026] The wind turbine blade support includes a first fixing frame 1. The top of the first fixing frame 1 has a first receiving cavity 101 for accommodating the wind turbine blade 17. Inside the first fixing frame 1 is a second receiving cavity 102. The inner wall of the first receiving cavity 101 has symmetrically arranged sliding grooves 2, connecting the first receiving cavity 101 to the second receiving cavity 102. Each of the symmetrically arranged sliding grooves 2 contains a slider 5 for fixing the bottom of the wind turbine blade 17. Each slider 5 is hinged to the top end of a first L-shaped swing rod 8 symmetrically arranged within the second receiving cavity 102. The bottom end of the symmetrically arranged first L-shaped swing rod 8 is hinged to a telescopic cylinder 7 located within the second receiving cavity 102. A mounting plate 103 is provided between the first receiving cavity 101 and the second receiving cavity 102. The middle rotating part of the first L-shaped swing rod 8 is rotatably connected to the mounting plate 103. The first fixing frame 1 serves as a basic load-bearing component, and the first receiving cavity 101 at its top has an arc-shaped or square groove-like structure. This first receiving cavity 101 is used to accommodate the bottom portion of the wind turbine blade 17. The second receiving cavity 102 is used to receive the components inside the bracket.

[0027] Two transverse grooves 2 are symmetrically formed on the two side walls of the first receiving cavity 101, each groove 2 extending laterally along the first receiving cavity 101. The inner ends of the two grooves 2 are connected to the second receiving cavity 102, which is located inside the first fixing frame 1. The mounting plate 103 is a rectangular steel plate, and its edge is welded to the inner wall of the first fixing frame 1. Two symmetrical pivot holes are formed on the mounting plate 103, and a copper bushing is embedded in each pivot hole to reduce rotational friction. The first L-shaped rocker arm 8 is installed on the pivot hole of the mounting plate 103, and both ends of the first L-shaped rocker arm 8 can rotate around the pivot hole.

[0028] Each groove 2 is equipped with a slider 5, which is a cuboid structure. The inner end of the slider 5 is rotatably connected to the top of the first L-shaped rocker arm 8 via a hinge shaft, and a thrust ball bearing is provided at the hinge shaft to bear the axial load. The first L-shaped rocker arm 8 has an overall L-shaped obtuse angle structure.

[0029] A telescopic cylinder 7 is installed inside the second receiving cavity 102. The cylinder body of the telescopic cylinder 7 is suspended inside the second receiving cavity 102, and the end of the telescopic cylinder 7 is hinged to the bottom of the first L-shaped rocker arm 8 through a fisheye joint. The middle part of the first L-shaped rocker arm 8 is rotatably connected to a copper bushing on the mounting plate 103 through a rotating shaft, forming a lever-type swing mechanism. When the piston rod of the telescopic cylinder 7 extends or retracts, it pushes the first L-shaped rocker arm 8 to rotate around the rotating shaft, thereby driving the slider 5 at the top to move horizontally within the slide groove 2.

[0030] An extension rod 9 is provided between the rotating part 81 in the middle of the first L-shaped rocker arm 8 and the cylinder connection end 82. The extension rod 9 is hinged to the buffer ring 6 through the connecting rod 10. A support plate 3 is provided at the bottom of the first receiving cavity 101. A limiting post 4 is connected to the bottom of the support plate 3. The limiting post 4 is set at the top of the second receiving cavity 102. The buffer ring 6 is sleeved on the limiting post 4. A cylindrical limiting post 4 extending downwards is vertically arranged at the top center of the second receiving cavity 102. The top of the limiting post 4 is connected to the bottom of the support plate 3. The diameter of the limiting post 4 is set according to the size of the blade buffer ring 6. It is used for the up and down sliding of the buffer ring 6 and realizes the function of limiting the position of the buffer ring 6, thereby reducing the swaying of the first L-shaped rocker arm 8. An extension rod 9 is provided at the lower part of the first L-shaped rocker arm 8 towards the limiting post 4. The extension rod 9 is welded and fixed to the vertical section of the first L-shaped rocker arm 8 so that when the telescopic cylinder 7 extends, the extension rod 9 is pulled by the first L-shaped rocker arm 8. The end of the extension rod 9 is hinged to one end of the connecting rod 10 via a pin, and the other end of the connecting rod 10 is hinged to the outer wall of the buffer ring 6. The buffer ring 6 is a ring structure with an inner diameter 5mm larger than the outer diameter of the limiting post 4. The ring body is made of polyurethane material and the ring wall diameter is 10mm. The buffer ring 6 is sleeved on the periphery of the limiting post 4. When the first L-shaped swing rod 8 swings, the connecting rod 10 drives the buffer ring 6 to move up and down along the axial direction of the limiting post 4, and there is a low friction design between the two. When the buffer ring 6 is pulled or pushed by the connecting rod 10, its sliding process consumes external force energy and plays a role in motion buffering. At the same time, when the external force is large, the telescopic cylinder 7 will also be compressed, the internal gas pressure will increase, and energy will be absorbed through isothermal or adiabatic processes to form a secondary buffer, further reducing the degree of swaying of the first L-shaped swing rod 8.

[0031] A second fixing frame 11 is also provided on the top of the first fixing frame 1. A third receiving cavity 111 is opened at the bottom of the second fixing frame 11. The first receiving cavity 101 and the third receiving cavity 111 together form the receiving chamber of the wind turbine blade 17. The first fixing frame 1 alone can limit the bottom of the wind turbine blade 17 on it. However, the top of the wind turbine blade 17 may become unstable during transportation. In order to further increase the stability of the top of the wind turbine blade 17, a second fixing frame 11 is provided on the top of the first fixing frame 1 as a top cover component. The third receiving cavity 104 opened at the bottom of the second fixing frame 11 has the same shape and position as the first receiving cavity 101. When the second fixing frame 11 and the first fixing frame 1 are aligned, the two receiving cavities together form a complete blade receiving space.

[0032] A fourth cavity 105 is symmetrically formed on one opposite side wall of the third cavity 104. Each fourth cavity 105 is equipped with a spring 106, which is connected to a second L-shaped swing rod 107 for fixing the top of the wind turbine blade 17. The second L-shaped swing rod 107 has an inverted L-shaped structure. One end of the spring 106 is welded to the bottom surface of the fourth cavity 105, and the other end is connected to the second L-shaped swing rod 107.

[0033] The first fixing frame 1 has symmetrical mounting slots 13 on both sides, and the second fixing frame 11 has symmetrical locking slots 12 on both sides. A rotating component 16 is installed in each mounting slot 13, and a rotating rod 14 is fixed to each rotating component 16. A through hole is formed on the rotating rod 14, and a threaded hole corresponding to the through hole on the rotating rod 14 is formed in each locking slot 12. Two mounting slots 13 are symmetrically formed on the outer walls of both sides of the first fixing frame 1. Each mounting slot 13 has a rectangular groove structure, and its depth is two-thirds of the thickness of the side wall of the first fixing frame 1. Locking slots 12 are formed on corresponding positions on both sides of the second fixing frame 11, and the shape of the locking slots 12 matches the mounting slots 13. A rotating component 16 is installed in each mounting slot 13. The rotating component 16 is a rotating shaft with a bearing seat, and a cylindrical rotating rod 14 is vertically welded to the rotating shaft. A screw 15 is provided at the outer end of the rotating rod 14, and its threaded section passes through the through hole at the end of the rotating rod 14 and forms a threaded connection with the threaded hole on the locking slot 12.

[0034] The end faces of the slider 5 and the second L-shaped swing arm 107 that contact the wind turbine blade 17 are provided with a silicone anti-slip layer. In order to increase the friction between the slider 5 and the second L-shaped swing arm 107 and the wind turbine blade 17 and prevent movement during clamping, a silicone anti-slip layer is bonded to the outer side of the slider 5. The silicone layer is 3mm thick and has a grid-like anti-slip texture on its surface. The end of the execution section of the second L-shaped swing arm 107 is also provided with the same silicone anti-slip layer as the slider 5.

[0035] During assembly, the bottom end of the wind turbine blade 17 is first inserted into the first receiving cavity 101, so that the bottom of the wind turbine blade 17 is positioned on the upper part of the support plate 3. The telescopic cylinder 7 is activated, and its piston rod pushes the first L-shaped swing arm 8 to rotate around the pivot on the mounting plate 103, causing the two sliders 5 to move towards the center along the slide groove 2 until the silicone anti-slip layer of the sliders 5 is in close contact with the outer wall of the blade. During this process, the swing of the first L-shaped swing arm 8, through the extension rod 9 and connecting rod 10, causes the buffer ring 6 to descend along the limiting post 4. When the slider 5 reaches the predetermined clamping position, the buffer ring 6 slides to its lowest position on the limiting post 4. When the blade swings during transportation, the sliding of the buffer ring 6 on the limiting post 4 provides auxiliary buffering for the first L-shaped swing arm 8, absorbing any potential impact energy.

[0036] Then, the third receiving cavity 104 of the second fixing frame 11 is aligned with the tip of the blade and pressed down. During this process, the outer wall of the tip of the blade contacts the actuating section of the second L-shaped rocker arm 107, pushing it to compress the spring 106. When the bottom surface of the second fixing frame 11 contacts the top surface of the first fixing frame 1, the restoring force of the spring 106 causes the actuating section of the second L-shaped rocker arm 107 to press tightly against the outer wall of the blade, forming a clamping force of the upper second L-shaped rocker arm 107 on the tip of the wind turbine blade 17 and a clamping force of the lower slider 5 on the bottom of the wind turbine blade 17.

[0037] Finally, the locking operation is performed by rotating the rotating rod 14 180° from the mounting slot 13, so that its outer end enters the locking slot 12 of the second fixing frame 11. Then, the screw 15 is tightened so that its head connects to the threaded hole on the side wall of the locking slot 12, thereby firmly connecting the first fixing frame 1 and the second fixing frame 11. At this time, the blade is completely fixed in the closed cavity composed of the first receiving cavity 101 and the third receiving cavity 104. The bottom is fixed horizontally by the slider 5, and the buffer ring 6 provides a buffering effect. The top is self-adaptively clamped by the second L-shaped swing rod 107 and the spring 106.

[0038] In practical use, when the clamping force needs to be adjusted, the clamping force of the slider 5 can be changed by adjusting the air supply pressure of the telescopic cylinder 7. The second L-shaped rocker arm 107 can automatically adapt to blades of different diameters under the action of the spring 106, ensuring the reliability of the top clamping. When it is necessary to remove the blade, simply loosen the screw 15, rotate the rotating rod 14 in the opposite direction to exit the locking groove 12, then lift the second fixing bracket 11, and finally control the telescopic cylinder 7 to retract to release the bottom fixation.

[0039] This embodiment achieves multi-directional adaptive fixing of the wind turbine blade 17 through a combination of mechanical linkage and elastic elements, ensuring fixing strength while avoiding surface damage that may be caused by rigid clamping. The cooperation relationship of each moving part is clear, the action process is reliable, and it can meet the clamping requirements of wind turbine blades 17 of different specifications.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wind power blade support, comprising a first fixing frame (1), a first accommodating cavity (101) is opened at the top of the first fixing frame (1) for accommodating a wind power blade, characterized in that, The first fixing frame (1) has a second receiving cavity (102) inside. The inner wall of the first receiving cavity (101) has symmetrically opened sliding grooves (2). The first receiving cavity (101) is connected to the second receiving cavity (102) through the sliding grooves (2). Each of the symmetrically arranged sliding grooves (2) is provided with a slider (5) for fixing the bottom of the wind turbine blade. Each slider (5) is hinged to the top end of the first L-shaped swing rod (8) symmetrically arranged in the second receiving cavity (102). The bottom end of the symmetrically arranged first L-shaped swing rod (8) is hinged to the telescopic cylinder (7) arranged in the second receiving cavity (102). An mounting plate (103) is provided between the first receiving cavity (101) and the second receiving cavity (102). The middle rotating part (81) of the first L-shaped swing rod (8) is rotatably connected to the mounting plate (103).

2. A wind turbine blade support according to claim 1, characterised in that An extension rod (9) is provided between the rotating part (81) in the middle of the first L-shaped rocker arm (8) and the cylinder connection end (82). The extension rod (9) is hinged to the buffer ring (6) through the connecting rod (10). A support plate (3) is provided at the bottom of the first receiving cavity (101). A limiting post (4) is connected to the bottom of the support plate (3). The limiting post (4) is set at the top of the second receiving cavity (102). The buffer ring (6) is sleeved on the limiting post (4).

3. A wind turbine blade support according to claim 1, characterised in that A second fixing frame (11) is also provided on the top of the first fixing frame (1), and a third receiving cavity (104) is opened at the bottom of the second fixing frame (11). The first receiving cavity (101) and the third receiving cavity (104) form a wind turbine blade receiving cavity.

4. A wind turbine blade cradle according to claim 3, characterised in that The third receiving cavity (104) has a fourth receiving cavity (105) symmetrically opened on one side. Each of the fourth receiving cavities (105) is provided with a spring (106), and the spring (106) is connected to a second L-shaped swing rod (107) for fixing the top of the wind turbine blade.

5. A wind turbine blade support according to claim 4, characterised in that The first fixing frame (1) has symmetrical mounting grooves (13) on both sides, and the second fixing frame (11) has symmetrical locking grooves (12) on both sides. A rotating component (16) is provided in the mounting groove (13), and a rotating rod (14) is fixed on the rotating component (16). A through hole is provided on the rotating rod (14), and a threaded hole corresponding to the through hole on the rotating rod (14) is provided in the locking groove (12).

6. A wind turbine blade support according to claim 5, characterised in that The ends of the slider (5) and the second L-shaped swing rod (107) that contact the wind turbine blades are both provided with a silicone anti-slip layer.

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