Fan blade lifting device for offshore wind power generation

Abstract

The invention discloses an offshore wind power generation fan blade lifting device which comprises a lifting machine, a driving assembly, a clamping assembly and a flow guide assembly, the lifting machine is provided with a lifting hook, a hanging ring is connected to the lifting hook of the lifting machine in a clamped mode, a driving box is fixedly connected to the bottom of the hanging ring, and the driving assembly comprises a motor supporting frame. According to the device, when clamping is carried out, fan blades are impacted by strong wind and wobble and incline, at the moment, a second electric telescopic rod is controlled to work, when the second electric telescopic rod works, the second electric telescopic rod drives a moving disc to slide on the outer wall of a moving sleeve shell, and meanwhile the moving disc moves backwards on the outer side of the moving sleeve shell; the movable disc pulls the adjusting plate, the adjusting plate pulls the flow guide cover through the fixed connecting frame, the flow guide cover rotates to the two sides of the top plate, when high wind impact occurs, wind power can be obliquely unloaded along the outer wall of the flow guide cover, and the situation that the mountain shakes and falls off due to the fact that the wind power impact strength is too large is avoided by reducing the contact face with the wind power.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power generation auxiliary equipment, and in particular to a fan blade lifting device for offshore wind power generation. Background Art

[0002] Offshore wind power generation is a clean energy generation method that utilizes offshore wind resources to convert into electrical energy. The power generation principle of offshore wind power is the same as that of ordinary wind power generation. Both use wind power to drive the windmill blades to rotate, converting wind energy into mechanical energy, and then increasing the rotation speed through a speed increaser, and finally driving the generator to generate electricity, converting mechanical energy into electrical energy.

[0003] When offshore wind power generation is required, the equipment generally needs to be moved to a designated location by a crane, and then the offshore wind turbine generator is installed as a whole. However, the weather on the sea is changeable, and sometimes there will be strong winds, which may cause the fan blades held by the crane to shake violently during the lifting process, causing them to fall off, and then causing the fan blades to fall off. Improvements need to be made to this problem. Summary of the invention

[0004] The object of the present invention is to provide a fan blade lifting device for offshore wind power generation to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a fan blade lifting device for offshore wind power generation, including a lifting machine, a driving assembly, a clamping assembly and a guide assembly, the lifting machine has a hook, a hanging ring is clamped at the hook of the lifting machine, and a driving box is fixedly connected to the bottom of the hanging ring.

[0006] Wherein, the driving component comprises:

[0007] The motor support frame is fixedly connected to the back of the drive box, the bottom of the motor support frame is fixedly connected to the drive motor, the drive motor has an output shaft, the output shaft of the drive motor is fixedly connected to pulley one, the outer side of pulley one is connected to a belt, the other end of the belt is connected to pulley two, the middle of pulley two is fixedly connected to a bidirectional threaded rod, and the outer side of the bidirectional threaded rod is threadedly connected to a ball nut pair.

[0008] According to the above technical solution, the clamping assembly includes a clamping frame, an electric telescopic rod 1 and a clamping plate, the clamping frame is fixedly connected to the side of the ball nut pair away from the bidirectional threaded rod, the electric telescopic rod 1 is respectively fixedly connected to the top and bottom of the clamping frame, the electric telescopic rod 1 has a telescopic end, and the clamping plate is fixedly connected to the telescopic end of the electric telescopic rod 1.

[0009] According to the above technical scheme, the deflector assembly includes a support plate, a positioning plate, a top plate, a movable shell, an electric telescopic rod 2, a movable disk, an adjustment plate, a deflector cover, a fixed connecting frame and an electric suction cup. The support plate is fixedly connected to the side of the clamping frame away from the drive box, the positioning plate is fixedly connected to the top and bottom of the clamping frame respectively, the top plate is fixedly connected to the top of the support plate, the movable shell is fixedly connected to the back of the top plate, the electric telescopic rod 2 is fixedly connected to the front of the positioning plate, the electric telescopic rod 2 has a telescopic end, the movable disk is fixedly connected to the telescopic end of the electric telescopic rod 2, the adjustment plate is hinged to the outside of the movable disk, the deflector cover is hinged to the outside of the top plate, the fixed connecting frame is fixedly connected to the rear side of the deflector cover, and the electric suction cup is arranged at the bottom of the deflector cover.

[0010] According to the above technical solution, a transmission groove is opened in the middle of the rear side of the drive box, the belt is arranged inside the transmission groove, a rectangular groove for accommodating the movement of the ball nut pair is opened on the front of the drive box, and the two ends of the bidirectional threaded rod are respectively rotatably connected to the inner wall of the drive box.

[0011] According to the above technical solution, a telescopic end of the electric telescopic rod penetrates the outer wall of the clamping frame and extends to the inner side of the clamping frame and is fixedly connected to the clamping plate. A friction pad is provided on the side of the clamping plate away from the electric telescopic rod. By providing the friction pad, the friction force can be increased and the fan blades for wind power generation can be clamped more stably.

[0012] According to the above technical solution, the front side of the second electric telescopic rod is fixedly connected to the back of the mobile shell, and the telescopic end of the second electric telescopic rod passes through the back of the mobile shell and extends into the mobile shell and is fixedly connected to the mobile disk, so that the second electric telescopic rod can control the movement of the mobile disk when working.

[0013] According to the above technical solution, a sliding groove is provided in the movable plate, and the movable plate is slidably connected to the outer wall of the movable shell through the sliding groove, so that the movable plate can move on the outer wall of the movable shell.

[0014] According to the above technical solution, the adjustment plate is rotatably connected to the middle of the fixed connecting frame on the side away from the movable plate, and a storage groove for accommodating the sliding of the electric suction cup is opened in the support plate. By setting the storage groove, the electric suction cup can be stored and protected at the same time.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: when the fan blades of the wind turbine generator need to be hoisted, the present invention controls the driving motor to work, so that the driving motor drives the pulley 1 to rotate during operation, and at this time, the pulley 1 drives the pulley 2 to rotate through the belt, and the bidirectional threaded rod is rotated synchronously. When the bidirectional threaded rod rotates, the ball nut pair moves on the bidirectional threaded rod, and can be adjusted according to the size of the fan blade, so that the center of gravity of the fan blade can be clamped more easily;

[0016] When clamping, if strong wind hits the fan blades, the fan blades will shake and tilt. At this time, the electric telescopic rod 2 is controlled to work. When the electric telescopic rod 2 works, the electric telescopic rod 2 drives the moving plate to slide on the outer wall of the moving sleeve shell. At the same time, the moving plate moves backward on the outer side of the moving sleeve shell, so that the moving plate pulls the adjustment plate, and the adjustment plate pulls the air guide cover through the fixed connecting frame, so that the air guide cover rotates to both sides of the top plate. When encountering strong wind impact, the wind force will unload obliquely along the outer wall of the air guide cover, and by reducing the contact area with the wind force, it is avoided that the mountain shakes and falls due to excessive wind impact intensity;

[0017] When the wind force at sea is relatively small, the electric telescopic rod 2 is controlled to work, so that the electric telescopic rod 2 pushes the adjusting plate, and at the same time the adjusting plate pushes the fixed connecting frame, so that the deflector cover rotates on the outside of the top plate, and at the same time the deflector cover is level with the top plate, so that smaller wind force can also be diverted. At the same time, when diverting the wind, the electric suction cup at the bottom of the deflector cover is exposed from the storage groove in the electric suction cup and contacts with the protrusion of the fan blade. Then the electric suction cup is started, which can realize the adsorption of the fan blade by the electric suction cup, so that the supporting force distribution of the device can be more even when clamping, to avoid tilting and causing it to fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the drive box of the present invention;

[0021] Figure 3 It is a schematic diagram of a pulley of the present invention;

[0022] Figure 4 It is a schematic diagram of the explosion at the belt of the present invention;

[0023] Figure 5 It is a schematic diagram of the clamping frame of the present invention;

[0024] Figure 6 It is a schematic diagram of the top plate of the present invention;

[0025] Figure 7 It is a schematic diagram of explosion at the moving disk of the present invention.

[0026] In the figure: 1. hoist; 2. hanging ring; 3. drive box; 4. drive assembly; 401. motor support frame; 402. drive motor; 403. pulley 1; 404. belt; 405. pulley 2; 406. bidirectional threaded rod; 407. ball nut pair; 5. clamping assembly; 501. clamping frame; 502. electric telescopic rod 1; 503. clamping plate; 6. guide assembly; 601. support plate; 602. positioning plate; 603. top plate; 604. movable shell; 605. electric telescopic rod 2; 606. movable plate; 607. adjustment plate; 608. guide cover; 609. fixed connecting frame; 610. electric suction cup. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-4 The present invention provides a technical solution: a fan blade lifting device for offshore wind power generation, including a lifting machine 1, a driving component 4, a clamping component 5 and a guide component 6. The lifting machine 1 has a hook, a hanging ring 2 is clamped at the hook of the lifting machine 1, and a driving box 3 is fixedly connected to the bottom of the hanging ring 2.

[0029] Wherein, the driving component 4 comprises:

[0030] The motor support frame 401 is fixedly connected to the back side of the driving box 3, a driving motor 402 is fixedly connected to the bottom of the motor support frame 401, the driving motor 402 has an output shaft, the output shaft of the driving motor 402 is fixedly connected to a pulley 1 403, the outer side of the pulley 1 403 is transmission-connected with a belt 404, the other end of the belt 404 is transmission-connected with a pulley 2 405, a bidirectional threaded rod 406 is fixedly connected to the middle part of the pulley 2 405, and a ball nut pair 407 is threadedly connected to the outer side of the bidirectional threaded rod 406.

[0031] A transmission groove is opened in the middle of the rear side of the driving box 3, and the belt 404 is arranged inside the transmission groove. A rectangular groove for accommodating the movement of the ball nut pair 407 is opened on the front of the driving box 3, and both ends of the bidirectional threaded rod 406 are rotatably connected to the inner wall of the driving box 3 respectively.

[0032] When it is necessary to lift the blades of the wind turbine, the drive motor 402 is controlled to work, so that the drive motor 402 drives the pulley 1 403 to rotate during operation. At this time, the pulley 1 403 drives the pulley 2 405 to rotate through the belt 404, and the two-way threaded rod 406 is rotated synchronously. When the two-way threaded rod 406 rotates, the ball nut pair 407 moves on the two-way threaded rod 406, which can be adjusted according to the size of the blades, making it easier to clamp the center of gravity of the blades.

[0033] See also Figure 5-7 The present invention provides a technical solution: the clamping assembly 5 includes a clamping frame 501, an electric telescopic rod 502 and a clamping plate 503. The clamping frame 501 is fixedly connected to the side of the ball nut pair 407 away from the bidirectional threaded rod 406. The electric telescopic rod 502 is respectively fixedly connected to the top and bottom of the clamping frame 501. The electric telescopic rod 502 has a telescopic end, and the clamping plate 503 is fixedly connected to the telescopic end of the electric telescopic rod 502.

[0034] The guide assembly 6 includes a support plate 601, a positioning plate 602, a top plate 603, a movable casing 604, an electric telescopic rod 605, a movable plate 606, an adjustment plate 607, a guide cover 608, a fixed connection frame 609 and an electric suction cup 610. The support plate 601 is fixedly connected to the side of the clamping frame 501 away from the drive box 3, the positioning plate 602 is fixedly connected to the top and bottom of the clamping frame 501, the top plate 603 is fixedly connected to the top of the support plate 601, and the movable casing 610 is fixedly connected to the top of the support plate 601. 604 is fixedly connected to the back of the top plate 603, the electric telescopic rod 605 is fixedly connected to the front of the positioning plate 602, the electric telescopic rod 605 has a telescopic end, the movable plate 606 is fixedly connected to the telescopic end of the electric telescopic rod 605, the adjustment plate 607 is hinged to the outside of the movable plate 606, the air deflector 608 is hinged to the outside of the top plate 603, the fixed connecting frame 609 is fixedly connected to the rear side of the air deflector 608, and the electric suction cup 610 is arranged at the bottom of the air deflector 608.

[0035] The telescopic end of the electric telescopic rod 502 penetrates the outer wall of the clamping frame 501 and extends to the inner side of the clamping frame 501 and is fixedly connected to the clamping plate 503. A friction pad is provided on the side of the clamping plate 503 away from the electric telescopic rod 502. By providing the friction pad, the friction force can be increased and the fan blades for wind power generation can be clamped more stably.

[0036] The front side of the second electric telescopic rod 605 is fixedly connected to the back of the mobile shell 604, and the telescopic end of the second electric telescopic rod 605 passes through the back of the mobile shell 604 and extends into the mobile shell 604 and is fixedly connected to the mobile disk 606, so that the second electric telescopic rod 605 can control the movement of the mobile disk 606 when working.

[0037] A sliding groove is provided in the movable plate 606 , and the movable plate 606 is slidably connected to the outer wall of the movable casing 604 through the sliding groove, so that the movable plate 606 can move on the outer wall of the movable casing 604 .

[0038] The adjusting plate 607 is rotatably connected to the middle of the fixed connecting frame 609 on one side away from the movable disk 606, and a storage groove for accommodating the sliding of the electric suction cup 610 is opened in the supporting plate 601. By setting the storage groove, the electric suction cup 610 can be stored and protected at the same time.

[0039] When clamping, if strong wind hits the fan blades, the fan blades will shake and tilt. At this time, the electric telescopic rod 605 is controlled to work. When the electric telescopic rod 605 is working, the electric telescopic rod 605 drives the moving plate 606 to slide on the outer wall of the moving shell 604. At the same time, the moving plate 606 moves backward on the outside of the moving shell 604, so that the moving plate 606 pulls the adjusting plate 607, and the adjusting plate 607 pulls the air guide cover 608 through the fixed connecting frame 609, so that the air guide cover 608 rotates to both sides of the top plate 603. When encountering strong wind impact, the wind will unload the force obliquely along the outer wall of the air guide cover 608, and by reducing the contact area with the wind, it is avoided that the mountain shakes and falls due to excessive wind impact.

[0040] When the wind force at sea is relatively small, the electric telescopic rod 605 is controlled to work, so that the electric telescopic rod 605 pushes the adjustment plate 607, and at the same time the adjustment plate 607 pushes the fixed connecting frame 609, so that the deflector 608 rotates outside the top plate 603, and at the same time the deflector 608 is level with the top plate 603, so that smaller wind force can also be diverted. At the same time, when diverting the wind, the electric suction cup 610 at the bottom of the deflector 608 is exposed from the storage groove in the electric suction cup 610 and contacts the protrusion of the fan blade. Then the electric suction cup 610 is started, so that the electric suction cup 610 can adsorb the fan blade, so that the device can make the supporting force distribution more even when clamping, to avoid tilting and causing it to fall.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fan blade lifting device for offshore wind power generation, comprising a lifting machine (1), characterized in that: It also comprises a driving assembly (4), a clamping assembly (5) and a flow guide assembly (6); the hoist (1) has a hook, a hanging ring (2) is clamped at the hook of the hoist (1), and a driving box (3) is fixedly connected to the bottom of the hanging ring (2); Wherein, the driving component (4) comprises: The motor support frame (401) is fixedly connected to the back of the driving box (3), the bottom of the motor support frame (401) is fixedly connected with a driving motor (402), the driving motor (402) has an output shaft, the output shaft of the driving motor (402) is fixedly connected with a pulley 1 (403), the outer side of the pulley 1 (403) is connected with a belt (404), the other end of the belt (404) is connected with a pulley 2 (405), the middle part of the pulley 2 (405) is fixedly connected with a bidirectional threaded rod (406), and the outer side of the bidirectional threaded rod (406) is threadedly connected with a ball nut pair (407).

2. The offshore wind power generation blade lifting device according to claim 1, characterized in that: The clamping assembly (5) comprises a clamping frame (501), an electric telescopic rod (502) and a clamping plate (503); the clamping frame (501) is fixedly connected to a side of the ball nut pair (407) away from the bidirectional threaded rod (406); the electric telescopic rod (502) is respectively fixedly connected to the top and bottom of the clamping frame (501); the electric telescopic rod (502) has a telescopic end; and the clamping plate (503) is fixedly connected to the telescopic end of the electric telescopic rod (502).

3. The offshore wind power generation blade lifting device according to claim 2, characterized in that: The guide assembly (6) comprises a support plate (601), a positioning plate (602), a top plate (603), a movable sleeve shell (604), a second electric telescopic rod (605), a movable plate (606), an adjustment plate (607), a guide cover (608), a fixed connection frame (609) and an electric suction cup (610), wherein the support plate (601) is fixedly connected to a side of the clamping frame (501) away from the driving box (3), the positioning plate (602) is fixedly connected to the top and bottom of the clamping frame (501), the top plate (603) is fixedly connected to the top of the support plate (601), and the movable sleeve (610) is fixedly connected to the top of the support plate (601). The shell (604) is fixedly connected to the back of the top plate (603), the electric telescopic rod (605) is fixedly connected to the front of the positioning plate (602), the electric telescopic rod (605) has a telescopic end, the movable plate (606) is fixedly connected to the telescopic end of the electric telescopic rod (605), the adjustment plate (607) is hinged to the outside of the movable plate (606), the air guide cover (608) is hinged to the outside of the top plate (603), the fixed connection frame (609) is fixedly connected to the rear side of the air guide cover (608), and the electric suction cup (610) is arranged at the bottom of the air guide cover (608).

4. The offshore wind power generation blade lifting device according to claim 3, characterized in that: A transmission groove is provided in the middle of the rear side of the drive box (3), the belt (404) is arranged inside the transmission groove, a rectangular groove for accommodating the movement of the ball nut pair (407) is provided on the front side of the drive box (3), and both ends of the bidirectional threaded rod (406) are respectively rotatably connected to the inner wall of the drive box (3).

5. The offshore wind power generation blade lifting device according to claim 4, characterized in that: The telescopic end of the electric telescopic rod (502) penetrates the outer wall of the clamping frame (501) and extends to the inner side of the clamping frame (501) to be fixedly connected to the clamping plate (503), and a friction pad is provided on the side of the clamping plate (503) away from the electric telescopic rod (502).

6. The offshore wind power generation blade lifting device according to claim 5, characterized in that: The front side of the second electric telescopic rod (605) is fixedly connected to the back of the mobile casing (604), and the telescopic end of the second electric telescopic rod (605) passes through the back of the mobile casing (604) and extends into the mobile casing (604) to be fixedly connected to the mobile plate (606).

7. The offshore wind power generation blade lifting device according to claim 6, characterized in that: A sliding groove is provided in the movable plate (606), and the movable plate (606) is slidably connected to the outer wall of the movable casing (604) through the sliding groove.

8. The offshore wind power generation blade lifting device according to claim 7, characterized in that: The adjusting plate (607) is rotatably connected to the middle of the fixed connecting frame (609) at one side away from the movable plate (606), and a receiving groove for accommodating the sliding of the electric suction cup (610) is provided in the supporting plate (601).

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