Bracket for transporting wind turbine tower

Abstract

The present invention discloses a bracket for transporting a wind turbine tower, comprising two support frames, wherein a telescopic connecting rod is fixedly installed between the two support frames, a universal wheel is installed on the bottom surface of the support frame, an adjustment plate is rotatably installed on the upper surface of the support frame, a driving block is slidably provided on the bottom surface of the adjustment plate, and the two driving blocks are jointly connected to a driving assembly, and a limiting assembly for preventing the tower from sliding is provided below the driving block. The present invention can adjust the inclination angle of the adjustment plate so that the tower is in a horizontal state after being placed, thereby preventing the tower from sliding due to excessive inclination angle. In combination with the limiting effect of the limiting assembly on the tower, the tower can effectively prevent it from sliding during transportation, thereby ensuring the safety of tower transportation. In addition, the telescopic connecting rod can adjust the distance between the two support frames, thereby being able to transport towers of different lengths, and having strong applicability.

Description

Technical Field

[0001] The present invention relates to the field of wind power towers, and in particular to a bracket for transporting wind power towers. Background Art

[0002] A wind turbine tower is the mast of a wind turbine generator system. It primarily supports the wind turbine generator system and absorbs vibrations. The general production process for wind turbine towers is as follows: CNC cutting machines are used to cut the material, thick plates need to be beveled, and the plates are rolled and formed on a plate rolling machine. Spot welding and positioning are performed, and after confirmation, the internal and external longitudinal seams are welded. After the roundness is checked, a secondary rounding is performed if any problems are found. After the single-section cylinder is welded, the roller frame is hydraulically assembled for spot welding. The internal and external circumferential seams are welded, and tolerances such as straightness are checked. After the flanges are welded, non-destructive testing of the welds and flatness inspection are performed. After sandblasting and painting, the internal components are installed, the finished product is inspected, and then it is transported to the installation site.

[0003] At present, the brackets used for transporting wind turbine towers are at risk of the towers slipping during the transportation process, which makes the towers unsafe. In addition, the brackets cannot transport towers of different lengths, are not very applicable, and have certain defects. Summary of the Invention

[0004] The purpose of the present invention is to provide a bracket for transporting wind turbine towers, so as to achieve safe transportation of wind turbine towers, and at the same time be able to transport wind turbine towers of different lengths, thereby improving the applicability of the bracket.

[0005] In order to solve the above technical problems, the present invention provides a bracket for transporting wind turbine towers, comprising two support frames, and a telescopic connecting rod is fixedly installed between the two support frames, a universal wheel is installed on the bottom surface of the support frame, and two adjustment plates for supporting and positioning the tower are rotatably installed on the upper surface of the support frame, a driving block for adjusting the inclination angle of the adjusting plate is slidably provided on the bottom surface of the adjusting plate, and the two driving blocks are jointly connected by a driving assembly for driving the driving block to move, and a limiting assembly for preventing the tower from slipping is provided under the driving block.

[0006] Furthermore, the telescopic connecting rod includes a storage tube, both ends of which are threadedly connected to telescopic screws, and a number of positioning holes are evenly spaced on the telescopic screws. Two fastening screw holes are symmetrically arranged on the storage tube, and the inner threads of the fastening screw holes are installed with positioning knobs for matching the positioning holes.

[0007] Furthermore, the inner walls at both ends of the storage tube are provided with connecting threads matching the telescopic screw, and the connecting threads at both ends have opposite rotation directions.

[0008] Furthermore, a jack is installed on each of the two driving blocks, the two jack bases are installed relative to each other, a transmission rod is fixedly installed on the two jack handles, a driving rod is movably installed on the outer ends of the two transmission rods, the two driving rods are hingedly installed with a threaded driving sleeve, a driving screw is threadedly installed on the threaded driving sleeve, and the outer end of the driving screw is rotatably installed on the support frame through a driving column.

[0009] Furthermore, the driving column passes through the support frame and is rotatably connected to the support frame, and a crank is fixedly mounted on one end of the driving column away from the driving screw rod.

[0010] Furthermore, the driving screw rod is a reciprocating screw rod.

[0011] Furthermore, the limiting assembly includes a limiting rod welded to the support frame, a limiting mounting hole is provided at one end of the limiting rod away from the support frame, a protective frame is threadedly installed in the limiting mounting hole, and the protective frame is arranged in an L shape.

[0012] Furthermore, two hand push racks for transporting wind turbine towers are symmetrically arranged on the support frame, and anti-slip sleeves are provided on the hand push racks.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] The present invention can make the tower in a horizontal state after placement by adjusting the inclination angle of the adjustment plate, thereby preventing the tower from sliding due to excessive inclination angle. Combined with the limiting effect of the limiting component on the tower, it can effectively prevent the tower from sliding during transportation, thereby ensuring the safety of tower transportation. In addition, the telescopic connecting rod can adjust the distance between the two support frames, and can transport towers of different lengths, with strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a bracket for transporting a wind turbine tower according to the present invention;

[0016] Figure 2 This is a schematic diagram of the telescopic connecting rod structure of a bracket for transporting a wind turbine tower according to the present invention;

[0017] Figure 3 This is a schematic diagram of the storage cylinder structure of a bracket for transporting a wind turbine tower according to the present invention;

[0018] Figure 4 The figure is a schematic structural diagram of a drive assembly of a bracket for transporting a wind turbine tower according to the present invention. DETAILED DESCRIPTION

[0019] The following is a more detailed description of the wind turbine tower transport bracket of the present invention, with reference to schematic diagrams. These diagrams illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art may modify the present invention described herein while still achieving the beneficial effects of the present invention. Therefore, the following description should be understood as a general guideline for those skilled in the art and not as a limitation of the present invention.

[0020] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact scale, and are provided solely for the purpose of assisting in the description of the embodiments of the present invention.

[0021] like Figures 1 to 4 As shown, an embodiment of the present invention proposes a bracket for transporting wind turbine towers, comprising two support frames 1, and a telescopic connecting rod 2 is fixedly installed between the two support frames 1, a universal wheel 3 is installed on the bottom surface of the support frame 1, and two adjustment plates 4 for supporting and positioning the tower are rotatably installed on the upper surface of the support frame 1, a driving block 5 for adjusting the inclination angle of the adjusting plate 4 is slidably provided on the bottom surface of the adjusting plate 4, and the two driving blocks 5 are jointly connected by a driving assembly 6 for driving the driving block 5 to move, and a limiting assembly 7 for preventing the tower from slipping is provided below the driving block 5.

[0022] The telescopic connecting rod 2 includes a storage tube 8, both ends of which are threadedly connected to a telescopic screw 9, and a plurality of positioning holes 10 are provided on the telescopic screw 9 at equal intervals. The storage tube 8 is symmetrically provided with two fastening screw holes 12, and the fastening screw holes 12 are internally threaded with positioning knobs 13 for matching with the positioning holes 10. In this embodiment, when it is necessary to adjust the distance between the two support frames 1, the storage tube 8 is rotated to allow the telescopic screw 9 to enter or extend from the storage tube 8, thereby changing the overall length of the telescopic connecting rod 2 and further changing the distance between the two support frames 1. After the distance adjustment is completed, the positioning knob 13 is tightened. At this time, the bottom end of the positioning knob 13 is inserted into the positioning hole 10, which restricts the rotation of the telescopic screw 9 and allows the telescopic connecting rod 2 to stably maintain its current length.

[0023] The inner walls of both ends of the storage tube 8 are provided with connecting threads 14 that match the telescopic screw rods 9, and the connecting threads 14 at both ends have opposite rotation directions. In this embodiment, the connecting threads 14 at both ends of the inner wall of the storage tube 8 are provided with opposite rotation directions. This allows the two telescopic screw rods 9 to be synchronously retracted or extended during the unidirectional rotation of the storage tube 8, facilitating the length adjustment of the telescopic connecting rod 2 and, in turn, the adjustment of the spacing between the support frames 1.

[0024] A jack 15 is mounted on each of the two drive blocks 5. The bases of the two jacks 15 are mounted relative to each other. A transmission rod 16 is fixedly mounted on the handles of the two jacks 15. A drive rod 17 is movably mounted on the outer ends of the two transmission rods 16. The two drive rods 17 are hingedly mounted with a threaded drive sleeve 18. A drive screw 19 is threadedly mounted on the threaded drive sleeve 18, and the outer end of the drive screw 19 is rotatably mounted on the support frame 1 via a drive column 20. In this embodiment, when the drive column 20 is rotated, the drive screw 19 rotates. The threaded drive sleeve 18, which is threadedly mounted on the drive screw 19, cannot rotate with the drive screw 19 due to being restricted. The threaded drive sleeve 18 can only move along the length of the drive screw 19, which drives the handles of the jacks 15 to swing, thereby causing the jacks 15 to push the drive blocks 5 to move, thereby changing the inclination angle of the adjustment plate 4, facilitating horizontal support of the tower, preventing the tower from sliding to one side, and ensuring the safety of tower transportation.

[0025] The driving column 20 passes through the support frame 1 and is rotatably connected to the support frame 1. A crank 21 is fixedly mounted on one end of the driving column 20 away from the driving screw 19. In this embodiment, the provision of the crank 21 facilitates the rotation of the driving column 20, thereby facilitating the adjustment of the inclination angle of the adjustment plate 4.

[0026] The driving screw rod 19 is a reciprocating screw rod. In this embodiment, the driving screw rod 19 is a reciprocating screw rod, which can realize the reciprocating motion of the threaded driving sleeve 18 by the unidirectional rotation of the driving screw rod 19, and can quickly swing the handle of the jack 15 back and forth, thereby more conveniently adjusting the inclination angle of the adjustment plate 4.

[0027] The limiting assembly 7 includes a limiting rod 22 welded to the support frame 1. A limiting mounting hole 23 is provided at one end of the limiting rod 22, away from the support frame 1. A protective frame 24 is internally threadedly mounted within the limiting mounting hole 23, and the protective frame 24 is configured in an L-shape. In this embodiment, after the tower is horizontally adjusted, the protective frame 24 is rotated and installed into the limiting mounting hole 23. The extended portion of the protective frame 24 is then inserted into the interior of the tower, effectively preventing the tower from sliding off the support frame 1 and improving the safety of tower transportation.

[0028] Two symmetrical hand push racks 25 for transporting wind turbine towers are provided on the support frame 1, and the hand push racks 25 are provided with anti-slip sleeves 26. In this embodiment, the provision of the hand push racks 25 and the anti-slip sleeves 26 facilitates the movement of the bracket and the tower as a whole, and facilitates the transportation of the tower.

[0029] The following lists preferred embodiments of the bracket for transporting wind turbine towers to clearly illustrate the content of the present invention. It should be clear that the content of the present invention is not limited to the following embodiments, and other improvements through conventional technical means of ordinary technicians in this field are also within the scope of the concept of the present invention.

[0030] The embodiment of the present invention provides a method for using a bracket for transporting a wind turbine tower. The specific method of use is as follows:

[0031] (1) Adjustment of the spacing between the support frames: After the distance between the two support frames 1 is determined according to the length of the tower, the spacing between the support frames 1 can be adjusted. The specific operation is: rotate the storage tube 8 so that the telescopic screw 9 enters or extends from the storage tube 8, thereby changing the overall length of the telescopic connecting rod 2, and then changing the spacing between the two support frames 1. After the spacing adjustment is completed, tighten the positioning knob 13. At this time, the bottom end of the positioning knob 13 is inserted into the positioning hole 10, which limits the rotation of the telescopic screw 9, so that the telescopic connecting rod 2 can maintain its current length stably.

[0032] (2) Adjustment of the tilt angle of the adjustment plate: After placing the tower on the adjustment plate 4 on the two support frames 1, adjust the tilt angle of the adjustment plate 4 so that the tower can be kept in a horizontal state as much as possible to prevent the tower from sliding due to tilting. The specific operation method is: turn the crank 21 to drive the screw rod 19 to rotate. The threaded drive sleeve 18 threadedly mounted with the drive screw rod 19 cannot rotate with the drive screw rod 19 due to restrictions. The threaded drive sleeve 18 can only move along the length direction of the drive screw rod 19, which drives the jack 15 handle to swing, so that the jack 15 pushes the drive block 5 to move, thereby changing the tilt angle of the adjustment plate 4, and can adjust the support height of the tower end, so as to facilitate horizontal support of the tower, prevent the tower from sliding to one side, and ensure the safety of tower transportation.

[0033] (3) Installation of the limit assembly: After completing the horizontal adjustment of the tower, the protective frame 24 is rotated and installed into the limit installation hole 23. At this time, the protruding part of the protective frame 24 is inserted into the interior of the tower, which can effectively prevent the tower from sliding off the support frame 1, thereby improving the safety of tower transportation. At this time, the entire fixing process of the tower is completed, and the tower can be transported.

[0034] To sum up, the present invention can make the tower in a horizontal state after placement by adjusting the inclination angle of the adjustment plate, thereby preventing the tower from sliding due to excessive inclination angle. Combined with the limiting effect of the limiting component on the tower, it can effectively prevent the tower from sliding during transportation, thereby ensuring the safety of tower transportation. In addition, the telescopic connecting rod can adjust the distance between the two support frames, and can transport towers of different lengths, with strong applicability.

[0035] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A bracket for transporting a wind turbine tower, characterized in that: The yoke is provided with two support frames, and a telescopic connecting rod is fixedly installed between the two support frames, a universal wheel is installed on the bottom surface of the support frame, and two adjustment plates for supporting and positioning the tower are rotatably installed on the upper surface of the support frame. A driving block for adjusting the inclination angle of the adjusting plate is slidably provided on the bottom surface of the adjusting plate, so as to adjust the support height of the tower end and support the tower horizontally, and the two driving blocks are jointly connected with a driving assembly for driving the driving blocks to move, and a limiting assembly for preventing the tower from sliding is provided under the driving block; A jack is installed on each of the two driving blocks, and the two jack bases are installed relative to each other. A transmission rod is fixedly installed on the two jack handles, and a driving rod is movably installed on the outer ends of the two transmission rods. The two driving rods are hingedly installed with a threaded driving sleeve, and a driving screw is threadedly installed on the threaded driving sleeve, and the outer end of the driving screw is rotatably installed on the support frame through a driving column to drive the jack handle to swing, so that the jack pushes the driving block to move, thereby changing the inclination angle of the adjustment plate.

2. The wind turbine tower transport bracket according to claim 1, characterized in that: The telescopic connecting rod includes a storage tube, both ends of which are threadedly connected to telescopic screws, and a number of positioning holes are evenly spaced on the telescopic screws. Two fastening screw holes are symmetrically provided on the storage tube, and the inner threads of the fastening screw holes are installed with positioning knobs for matching the positioning holes.

3. The wind turbine tower transport bracket according to claim 2, characterized in that: The inner walls at both ends of the storage cylinder are provided with connecting threads matching the telescopic screw, and the connecting threads at both ends have opposite rotation directions.

4. The wind turbine tower transport bracket according to claim 1, wherein: The driving column passes through the supporting frame and is rotatably connected to the supporting frame. A crank is fixedly mounted on one end of the driving column away from the driving screw rod.

5. The wind turbine tower transport bracket according to claim 1, wherein: The driving screw rod adopts a reciprocating screw rod.

6. The wind turbine tower transport bracket according to claim 1, characterized in that: The limiting assembly includes a limiting rod welded to the support frame, a limiting mounting hole is provided at one end of the limiting rod away from the support frame, a protective frame is threadedly installed in the limiting mounting hole, and the protective frame is arranged in an L shape.

7. The wind turbine tower transport bracket according to claim 1, wherein: Two hand push racks for transporting wind turbine towers are symmetrically arranged on the support frame, and anti-slip sleeves are arranged on the hand push racks.

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