Wind power blade girder hoisting device

Abstract

The utility model discloses a wind power blade girder hoisting device which comprises a base, a rotating column is rotatably connected to the top of the base, a steering mechanism is arranged on the rotating column, a top plate is fixedly connected to the top of the rotating column, and two threaded rods rotatably connected with the top plate are arranged on the top plate in a penetrating mode. Wherein one threaded rod is fixedly connected with a second motor, the second motor is arranged on the side wall of the top plate and fixedly connected with the top plate, the two threaded rods are jointly sleeved with a moving plate in threaded connection with the threaded rods, the top of the moving plate is fixedly connected with a lifting motor, and the output end of the lifting motor is fixedly connected with a worm. And the worm is meshed with a worm gear. Through the self-locking performance of the worm gear and the worm, a lifted wind power blade main beam can be protected and prevented from falling; and through cooperation of the first motor and the second motor, the wind power blade main beam can be hoisted to different positions, and different use requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of hoisting device technology, and in particular to a hoisting device for the main beam of a wind turbine blade. Background Technology

[0002] The main beam of a wind turbine blade is an important component of the blade, playing a crucial role in the blade's structural strength and stability. After being manufactured in the factory, the main beam needs to be transported to its destination by vehicle.

[0003] When lifting the main beam of a wind turbine blade using a hoisting device, if the hoisting motor fails during prolonged operation, the main beam of the wind turbine blade may fall, causing damage and increasing costs. To address this issue, this application proposes a hoisting device for the main beam of a wind turbine blade. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a wind turbine blade main beam hoisting device. This device utilizes the self-locking properties of a worm gear and worm shaft to protect the lifted wind turbine blade main beam from falling. Furthermore, the cooperation of a first motor and a second motor allows the wind turbine blade main beam to be hoisted to different positions to meet various usage requirements.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wind turbine blade main beam hoisting device includes a base, a rotating column rotatably connected to the top of the base, a steering mechanism on the rotating column, a top plate fixedly connected to the top of the rotating column, two threaded rods rotatably connected to the top plate, one of the threaded rods fixedly connected to a second motor, the second motor being mounted on and fixedly connected to the side wall of the top plate, a synchronous belt being fitted around the outer walls of both threaded rods, a moving plate threadedly connected to both threaded rods, a lifting motor fixedly connected to the top of the moving plate, a worm gear fixedly connected to the output end of the lifting motor, the worm gear meshing with a worm wheel, a take-up roller coaxially fixedly connected to the worm wheel, two vertical plates fixedly connected to the top of the moving plate, a take-up roller passing through and rotatably connected to the two vertical plates, a lifting rope fitted around the outer wall of the take-up roller, one end of the lifting rope being fixedly connected to the outer wall of the take-up roller, and the other end of the lifting rope being fixedly connected to a wind turbine blade main beam hook.

[0007] Preferably, the steering mechanism includes a first motor fixedly connected to the top of the base, a drive gear fixedly connected to the end of the output shaft of the first motor, and a driven gear fixedly connected to the outer wall of the rotating column, wherein the drive gear meshes with the driven gear.

[0008] Preferably, pulleys are fixedly connected to the outer walls of both threaded rods, and the timing belt is sleeved on the outer walls of the two pulleys.

[0009] Preferably, a limiting block is rotatably connected to the end of the worm gear, and the limiting block is disposed on the side wall of the upright plate and fixedly connected thereto.

[0010] Preferably, the movable plate has a through opening, and the lifting rope passes through the through opening.

[0011] Preferably, a control panel is fixedly connected to the top of the base.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. The output end of the lifting motor drives the worm gear, worm wheel, and take-up roller to rotate. The rotation of the take-up roller winds the lifting rope, thereby lifting the wind turbine blade main beam hook and the hoisted wind turbine blade main beam. The self-locking function of the worm wheel and worm gear protects the lifted wind turbine blade main beam and prevents it from falling.

[0014] 2. The output of the second motor drives one of the threaded rods, the synchronous belt, and the other threaded rod to rotate. The rotation of the two threaded rods drives the moving plate, the lifting rope, the wind turbine blade main beam hook, and the hoisted wind turbine blade main beam to move. The output shaft of the first motor drives the driving gear, the driven gear, the rotating column, the top plate, the lifting rope, the wind turbine blade main beam hook, and the wind turbine blade main beam to turn. By moving and turning the hoisted wind turbine blade main beam, the wind turbine blade main beam can be hoisted to different positions in the vehicle body.

[0015] In summary, the self-locking mechanism of the worm gear and worm can protect the lifted wind turbine blade main beam from falling; the cooperation of the first and second motors can hoist the wind turbine blade main beam to different positions to meet different usage needs. Attached Figure Description

[0016] Figure 1 This is a first structural schematic diagram of a wind turbine blade main beam hoisting device proposed in this utility model;

[0017] Figure 2 This is a second structural schematic diagram of a wind turbine blade main beam hoisting device proposed in this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle.

[0019] In the diagram: 1. Base, 2. Rotating column, 3. First motor, 4. Drive gear, 5. Driven gear, 6. Top plate, 7. Threaded rod, 8. Second motor, 9. Synchronous belt, 10. Moving plate, 11. Lifting motor, 12. Worm gear, 13. Limit block, 14. Worm wheel, 15. Wind take-up roller, 16. Vertical plate, 17. Lifting rope, 18. Wind turbine blade main beam hook, 19. Control panel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-3 A wind turbine blade main beam hoisting device includes a base 1, a rotating column 2 rotatably connected to the top of the base 1, a steering mechanism on the rotating column 2, and a first motor 3 fixedly connected to the top of the base 1. A drive gear 4 is fixedly connected to the end of the output shaft of the first motor 3, and a driven gear 5 is fixedly connected to the outer wall of the rotating column 2. The drive gear 4 and the driven gear 5 mesh with each other. The rotating column 2 is driven to rotate by the first motor 3, thereby realizing the steering of the hoisting.

[0022] A top plate 6 is fixedly connected to the top of the rotating column 2. Two threaded rods 7 are rotatably connected to the top plate 6. One of the threaded rods 7 is fixedly connected to a second motor 8, which is located on the side wall of the top plate 6 and fixedly connected to it. A synchronous belt 9 is fitted on the outer wall of both threaded rods 7. Pulleys are fixedly connected to the outer wall of both threaded rods 7. The synchronous belt 9 is fitted on the outer wall of the two pulleys. A movable plate 10 is threadedly connected to both threaded rods 7. The movable plate 10 is moved by the second motor 8. With the help of steering, the main beam of the hoisted wind turbine blade can be moved to different positions in the carriage, making the hoisting range wide.

[0023] A lifting motor 11 is fixedly connected to the top of the movable plate 10. A worm gear 12 is fixedly connected to the output end of the lifting motor 11. A limit block 13 is rotatably connected to the end of the worm gear 12. The limit block 13 is set on the side wall of the upright plate 16 and fixedly connected to it. The worm gear 12 meshes with a worm wheel 14. A winding roller 15 is coaxially fixedly connected to the worm wheel 14. Two upright plates 16 are fixedly connected to the top of the movable plate 10. The winding roller 15 passes through the two upright plates 16 and is rotatably connected to them. A lifting rope 17 is sleeved on the outer wall of the winding roller 15. One end of the lifting rope 17 is fixedly connected to the outer wall of the winding roller 15. An opening is provided through the movable plate 10. The lifting rope 17 passes through the opening. The other end of the lifting rope 17 is fixedly connected to a wind turbine blade main beam hook 18. The operator first winds the rope around the wind turbine blade main beam and then lifts the wind turbine blade main beam through the wind turbine blade main beam hook 18. A control panel 19 is fixedly connected to the top of the base 1. The two motors can be controlled to start and stop through the control panel 19.

[0024] In this invention, when hoisting the main beam of a wind turbine blade, the workers first wrap ropes around the main beam and hoist it using the main beam hook 18. Then, the lifting motor 11 is started, and its output drives the worm gear 12, worm wheel 14, and take-up roller 15 to rotate. The rotation of the take-up roller 15 winds the lifting rope 17, thus lifting the main beam hook 18 and the hoisted main beam. Next, the second motor 8 is started, and its output drives one threaded rod 7, the synchronous belt 9, and the other threaded rod 7 to rotate. The two threaded rods 7 then rotate... The rotating mechanism moves the moving plate 10, lifting rope 17, wind turbine blade main beam hook 18, and the hoisted wind turbine blade main beam. The first motor 3 is started, and its output shaft drives the driving gear 4, driven gear 5, rotating column 2, top plate 6, lifting rope 17, wind turbine blade main beam hook 18, and the wind turbine blade main beam to rotate. By moving and rotating the hoisted wind turbine blade main beam, it can be hoisted to different positions on the vehicle body, facilitating its subsequent transport to its destination. The self-locking property of the worm gear ensures stable winding of the take-up roller 15, preventing the wind turbine blade main beam from falling during hoisting.

[0025] This invention solves the problem of the wind turbine blade main beam falling when the hoisting motor fails during prolonged operation of the existing technology by setting the self-locking property of the worm gear and worm. This problem causes damage to the wind turbine blade main beam and increases costs.

Claims

1. A wind turbine blade spar hoisting device comprising a base (1), characterized in that, The top of the base (1) is rotatably connected with a rotating column (2), the rotating column (2) is provided with a steering mechanism, the top of the rotating column (2) is fixedly connected with a top plate (6), the top plate (6) is provided with two threaded rods (7) rotatably connected therewith, one of the threaded rods (7) is fixedly connected with a second motor (8), the second motor (8) is arranged on the side wall of the top plate (6) and fixedly connected therewith, the outer walls of the two threaded rods (7) are commonly sleeved with a synchronous belt (9), the two threaded rods (7) are commonly sleeved with a moving plate (10) threadedly connected therewith, the top of the moving plate (10) is fixedly connected with a lifting motor (11), the output end of the lifting motor (11) is fixedly connected with a worm (12), the worm (12) is engaged with a worm wheel (14), the worm wheel (14) is coaxially fixedly connected with a winding roller (15), the top of the moving plate (10) is fixedly connected with two vertical plates (16), the winding roller (15) penetrates through the two vertical plates (16) and is rotatably connected therewith, the outer wall of the winding roller (15) is sleeved with a lifting rope (17), one end of the lifting rope (17) is fixedly connected with the outer wall of the winding roller (15), the other end of the lifting rope (17) is fixedly connected with a wind turbine blade girder hook (18). The steering mechanism comprises a first motor (3) fixedly connected with the top of the base (1), the output shaft of the first motor (3) is fixedly connected with a driving gear (4), the outer wall of the rotating column (2) is fixedly connected with a driven gear (5), and the driving gear (4) is engaged with the driven gear (5).

2. A wind turbine blade spar hoisting device according to claim 1, characterized in that The outer walls of the two threaded rods (7) are fixedly connected with pulleys, and the synchronous belt (9) is sleeved on the outer walls of the two pulleys.

3. The wind power blade spar hoisting device according to claim 1, characterized in that, The end of the worm (12) is rotatably connected with a limiting block (13), and the limiting block (13) is arranged on the side wall of the vertical plate (16) and fixedly connected therewith.

4. The wind turbine blade spar hoisting device according to claim 1, characterized in that, A through hole is provided in the moving plate (10), and the lifting rope (17) penetrates through the through hole.

5. The wind power blade spar hoisting device according to claim 1, characterized in that, The top of the base (1) is fixedly connected with a control panel (19).

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