Lifting appliance for lifting blade rib plate of wind driven generator

Abstract

The utility model discloses a lifting appliance for lifting a blade rib plate of a wind driven generator, which belongs to the technical field of lifting appliances for lifting, and comprises a fixed plate, a fixed strip fixedly mounted at the bottom end of the fixed plate, a fixed motor fixedly mounted on the fixed strip, a threaded rod fixedly mounted at the output end of the fixed motor, and two sliding strips in threaded connection with the threaded rod, the two sliding strips are slidably installed at the bottom end of the fixing plate, a connecting motor is fixedly installed on the sliding strips, a screw rod is fixedly installed at the output end of the connecting motor, two sliding blocks are slidably installed in the sliding strips, the two sliding blocks are in threaded connection to the screw rod, and the threaded rod and the screw rod are each provided with two threads opposite in screwing direction. And a sliding square hole matched with the fixed strip is formed in the sliding strip. The blade rib plate lifting appliance can be adjusted according to blade rib plates of different models and sizes, the applicability of the lifting appliance is improved, and through the design of the clamping assembly and the buffering assembly, the lifting process is more stable, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting slings, in particular to a hoisting sling for hoisting a rib plate of a wind turbine blade. Background Art

[0002] Lifting equipment for wind turbine blade ribs is essential equipment during blade installation. Rotor hoisting is the most common method for installing wind turbine blades, primarily used on onshore wind turbines. This method typically requires a crane or specialized lifting equipment to move the blades and assemble them onto the hub on the ground or on the deck. During the hoisting process, the rotor is lifted and docked with the nacelle. With technological advancements, wind turbine blade hoisting techniques are constantly innovating. For example, a single blade weighing approximately 18.34 tons and measuring 76 meters in length might be lifted using a 650-ton crawler crane. During hoisting, the crane's boom length, working radius, and rated capacity must be considered. The weight of the hook, wire rope, and lifting equipment must also be considered to ensure safety and efficiency. Depending on the wind turbine drive type and hoisting conditions, horizontal, diagonal, and vertical blade hoisting methods can be used. The corresponding hoists can be divided into rotary and horizontal types to meet different hoisting requirements. With the development and utilization of renewable energy, wind power generation has become an important part of the global energy structure. During the assembly and maintenance of wind turbines, blades are one of the key components.

[0003] Most existing wind turbine blade rib lifting slings have a complicated installation process. In addition, due to the huge size and special shape of the blades, each blade is of different size. Traditional lifting tools cannot meet the safety and precision requirements. Therefore, specially designed slings are needed to ensure the quality and efficiency of blade installation. Therefore, we propose a sling for lifting wind turbine blade ribs to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a hoist for hoisting a rib plate of a wind turbine blade, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The cam is fixedly mounted on the fixing plate, and the fixing plate is fixedly mounted on the fixing plate, the fixing plate is fixedly mounted on the fixing plate, the fixing plate is fixedly mounted on the fixing plate, the fixing plate is fixedly mounted on the fixing plate, the fixing plate is fixedly mounted on the fixing plate output end, the fixing plate is fixedly mounted on the fixing plate, the fixing plate is fixedly mounted on the fixing plate, the fixing plate is fixedly mounted on the fixing plate, the fixing plate is fixedly mounted on the fixing plate, the fixing plate is fixedly mounted on the fixing plate, the fixing plate is fixedly mounted on the fixing plate, the fixing plate is fixedly mounted on the fixing plate, the fixing plate is fixedly mounted on the fixing plate, the fixing plate

[0007] Preferably, the buffer assembly includes: a buffer pad and a buffer block, a fixed frame is fixedly installed on both sides of the fixed plate, the same limiting plate is slidably installed in the two fixed frames, the buffer pad is fixedly installed on the top of the limiting plate, the buffer block is fixedly installed on the bottom of the fixed plate, a sliding hole matching the fixed bar is provided on the buffer block, limiting grooves are provided on both sides of the fixed plate, a plurality of springs are fixedly installed in the limiting grooves, the same buckle is fixedly installed on one side of the multiple springs, the buckle is slidably installed in the limiting groove, and a slot matching the buckle is provided on the limiting plate.

[0008] Preferably, the clamping assembly includes: a hydraulic cylinder and a stop block, the hydraulic cylinder is fixedly installed on the top of the sliding block, the stop block is fixedly installed on one side of the sliding block, a clamping plate is fixedly installed on the output end of the hydraulic cylinder, the clamping plate matches the stop block, a movable groove matching the sliding block is provided in the sliding bar, and a spiral groove matching the spiral rod is provided on the sliding block.

[0009] Preferably, a connecting frame is fixedly installed on the top of the fixed plate, a plurality of support rods are fixedly installed on the top of the connecting frame, a same fixed block is fixedly installed on the top of the plurality of support rods, a hanging ring is fixedly installed on the top of the fixed block, and a reinforcement frame is fixedly installed on the top of the fixed plate.

[0010] Preferably, a small connecting rod is fixedly installed on one side of the buckle, a pushing block is fixedly installed on the small connecting rod, and a sliding groove matching the pushing block is opened on the fixed plate.

[0011] Preferably, the sliding bar is provided with a mounting circular groove matching the connection motor, and the fixing bar is provided with a fixing groove matching the fixing motor.

[0012] Preferably, a T-shaped slider is fixedly installed on the top of the sliding bar, and a T-shaped slot matching the T-shaped slider is opened at the bottom of the fixed plate.

[0013] In the utility model, a lifting device for lifting the blade rib of a wind turbine generator is described. By starting a fixed motor, the fixed motor drives two sliding bars threadedly connected thereto to move, and the two sliding bars drive two sliding blocks slidably mounted thereon to move together. At the same time, a connecting motor fixedly mounted on the sliding bar is started to drive the two sliding blocks to move, thereby performing adjustment to better adjust to blade ribs of different models and sizes, thereby greatly improving the applicability of the lifting device.

[0014] In the utility model, a hoist for hoisting the blade rib of a wind turbine generator is described. By starting the hydraulic cylinder, the pressing plate is driven to move upward, and cooperates with the stop block to firmly fix the blade rib on the hoist to prevent slippage or shaking during the hoisting process. The limiting plate is inserted into the two fixing frames, and the buckle is inserted into the card slot provided on the limiting plate to fix it. The buffer pad cooperates with the buffer block to limit the vibration and impact of the blade rib during the hoisting process, thereby protecting the blade rib from damage. Finally, the hoist is hoisted to the designated position for installation through the cooperation of the lifting ring, the fixing block and the support rod.

[0015] The utility model has a reasonable structural design. Through the cooperation of the fixing bar, the sliding bar, the fixed motor and the connecting motor, it can be adjusted according to the blade ribs of different models and sizes, thereby improving the applicability of the sling. Through the design of the clamping component and the buffer component, the lifting process is more stable and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a hoist for hoisting the ribs of a wind turbine blade proposed in the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of a lifting device for lifting the ribs of wind turbine blades proposed in the present invention;

[0018] Figure 3 This is a schematic cross-sectional view of the partial structure of a hoist for hoisting the ribs of a wind turbine blade proposed in the present invention;

[0019] Figure 4 This is a partial structural cross-sectional diagram of a hoist for hoisting a rib plate of a wind turbine blade proposed in the present invention;

[0020] Figure 5 for Figure 4 A partial enlarged view of part A.

[0021] In the figure: 1. Fixed plate; 2. Connecting frame; 3. Reinforcement frame; 4. Support rod; 5. Fixed block; 6. Lifting ring; 7. Fixed frame; 8. Fixed bar; 9. Fixed motor; 10. Sliding bar; 11. Connecting motor; 12. Limiting plate; 13. Sliding block; 14. Pressing plate; 15. Hydraulic cylinder; 16. Threaded rod; 17. Buckle; 18. Push block; 19. Buffer pad; 20. Buffer block; 21. T-type slider; 22. Screw rod; 23. Stop block; 24. Spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-5 A hoist for lifting the blade rib of a wind turbine generator comprises: a fixed plate 1, a fixed bar 8 is fixedly installed at the bottom end of the fixed plate 1, a fixed motor 9 is fixedly installed on the fixed bar 8, a threaded rod 16 is fixedly installed on the output end of the fixed motor 9, two sliding bars 10 are threadedly connected on the threaded rod 16, the two sliding bars 10 are both slidably installed on the bottom end of the fixed plate 1, a connecting motor 11 is fixedly installed on the sliding bar 10, a spiral rod 22 is fixedly installed on the output end of the connecting motor 11, two sliding blocks 13 are slidably installed in the sliding bar 10, the two sliding blocks 13 are threadedly connected to the spiral rod 22, the threaded rod 16 and the spiral rod 22 are both provided with two threads in opposite directions, the sliding bar 10 is provided with a sliding square hole matching the fixed bar 8, a buffer assembly is provided on the fixed plate 1, and a clamping assembly is provided on the sliding block 13.

[0024] In this embodiment, the buffer assembly includes: a buffer pad 19 and a buffer block 20. A fixed frame 7 is fixedly installed on both sides of the fixed plate 1. The same limiting plate 12 is slidably installed in the two fixed frames 7. The buffer pad 19 is fixedly installed on the top of the limiting plate 12. The buffer block 20 is fixedly installed on the bottom end of the fixed plate 1. A sliding hole matching the fixed bar 8 is provided on the buffer block 20. A limiting groove is provided on both sides of the fixed plate 1. A plurality of springs 24 are fixedly installed in the limiting groove. The same buckle 17 is fixedly installed on one side of the multiple springs 24. The buckle 17 is slidably installed in the limiting groove. A slot matching the buckle 17 is provided on the limiting plate 12 for better restriction.

[0025] In this embodiment, the clamping assembly includes: a hydraulic cylinder 15 and a stop block 23. The hydraulic cylinder 15 is fixedly installed on the top of the sliding block 13, and the stop block 23 is fixedly installed on one side of the sliding block 13. The output end of the hydraulic cylinder 15 is fixedly installed with a clamping plate 14, and the clamping plate 14 matches the stop block 23. A movable sliding groove matching the sliding block 13 is opened in the sliding bar 10, and a spiral groove matching the spiral rod 22 is opened on the sliding block 13 for better control.

[0026] In this embodiment, a connecting frame 2 is fixedly installed on the top of the fixed plate 1, a plurality of support rods 4 are fixedly installed on the top of the connecting frame 2, the same fixed block 5 is fixedly installed on the top of the plurality of support rods 4, a hanging ring 6 is fixedly installed on the top of the fixed block 5, a reinforcing frame 3 is fixedly installed on the top of the fixed plate 1, and a T-shaped slider 21 is fixedly installed on the top of the sliding bar 10, and a T-shaped slide groove matching the T-shaped slider 21 is provided at the bottom of the fixed plate 1, which is more convenient for sliding.

[0027] In this embodiment, a small connecting rod is fixedly installed on one side of the buckle 17, and a pushing block 18 is fixedly installed on the small connecting rod. A sliding groove matching the pushing block 18 is provided on the fixed plate 1, which is more convenient for movement. A mounting circular groove matching the connecting motor 11 is provided on the sliding bar 10, and a fixing groove matching the fixed motor 9 is provided on the fixing bar 8, which is fixed well.

[0028] In this embodiment, when in use, by starting the fixed motor 9, the fixed motor 9 drives the two sliding bars 10 threadedly connected thereon to move, and the two sliding bars 10 drive the two sliding blocks 13 slidably mounted thereon to move together, and at the same time, the connecting motor 11 fixedly mounted on the sliding bar 10 is started to drive the two sliding blocks 13 to move, so as to adjust the blade ribs according to different models and sizes, thereby greatly improving the applicability of the spreader. After the adjustment is completed, the hydraulic cylinder 15 fixedly mounted on the sliding block 13 is started to drive the pressing plate 14 fixedly mounted on its output end to move upward, thereby lifting the blade rib and fixing it on The block 23 on the sliding block 13 cooperates to firmly fix the blade rib on the sling to prevent slipping or shaking during the lifting process. When the limiting plate 12 is inserted into the two fixed frames 7, the pushing block 18 is squeezed to drive the buckle 17 to squeeze the spring 24, so that it is recovered into the limiting groove opened on the fixed plate 1, and then the buckle 17 is snapped into the slot opened on the limiting plate 12 for fixing. The buffer pad 19 and the buffer block 20 cooperate to limit the vibration and impact of the blade rib during the lifting process, and protect the blade rib from damage. Finally, it is lifted to the designated position for installation through the cooperation of the lifting ring 6, the fixed block 5 and the support rod 4.

[0029] The above is a detailed introduction to the lifting device for lifting the ribs of wind turbine blades provided by the present invention. This article uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core concept of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A hoist for hoisting the ribs of wind turbine blades, characterized in that: include: A fixed plate (1), wherein a fixed bar (8) is fixedly installed at the bottom end of the fixed plate (1), a fixed motor (9) is fixedly installed on the fixed bar (8), a threaded rod (16) is fixedly installed on the output end of the fixed motor (9), two sliding bars (10) are threadedly connected on the threaded rod (16), and the two sliding bars (10) are both slidably installed at the bottom end of the fixed plate (1), a connecting motor (11) is fixedly installed on the sliding bar (10), a spiral rod (22) is fixedly installed on the output end of the connecting motor (11), two sliding blocks (13) are slidably installed in the sliding bar (10), and the two sliding blocks (13) are both threadedly connected to the spiral rod (22), the threaded rod (16) and the spiral rod (22) are both provided with two threads with opposite rotation directions, the sliding bar (10) is provided with a sliding square hole matching the fixed bar (8), a buffer component is provided on the fixed plate (1), and a clamping component is provided on the sliding block (13).

2. A lifting device for lifting the ribs of a wind turbine blade according to claim 1, characterized in that: The buffer assembly comprises: a buffer pad (19) and a buffer block (20); a fixed frame (7) is fixedly installed on both sides of the fixed plate (1); a same limiting plate (12) is slidably installed in the two fixed frames (7); the buffer pad (19) is fixedly installed on the top of the limiting plate (12); the buffer block (20) is fixedly installed on the bottom of the fixed plate (1); a sliding hole matching the fixing bar (8) is provided on the buffer block (20); limiting grooves are provided on both sides of the fixed plate (1); a plurality of springs (24) are fixedly installed in the limiting grooves; a same buckle (17) is fixedly installed on one side of the plurality of springs (24); the buckle (17) is slidably installed in the limiting groove; a slot matching the buckle (17) is provided on the limiting plate (12).

3. The lifting device for lifting the ribs of wind turbine blades according to claim 1, characterized in that: The clamping assembly comprises: a hydraulic cylinder (15) and a stopper (23), wherein the hydraulic cylinder (15) is fixedly mounted on the top of the sliding block (13), and the stopper (23) is fixedly mounted on one side of the sliding block (13); a pressing plate (14) is fixedly mounted on the output end of the hydraulic cylinder (15), and the pressing plate (14) matches the stopper (23); a movable sliding groove matching the sliding block (13) is provided in the sliding bar (10), and a spiral groove matching the spiral rod (22) is provided on the sliding block (13).

4. The lifting device for lifting the ribs of wind turbine blades according to claim 1, characterized in that: A connecting frame (2) is fixedly mounted on the top of the fixing plate (1), a plurality of supporting rods (4) are fixedly mounted on the top of the connecting frame (2), a same fixing block (5) is fixedly mounted on the top of the plurality of supporting rods (4), a hanging ring (6) is fixedly mounted on the top of the fixing block (5), and a reinforcing frame (3) is fixedly mounted on the top of the fixing plate (1).

5. The lifting device for lifting the ribs of wind turbine blades according to claim 1, characterized in that: A small connecting rod is fixedly installed on one side of the buckle (17), a pushing block (18) is fixedly installed on the small connecting rod, and a sliding groove matching the pushing block (18) is provided on the fixing plate (1).

6. The lifting device for lifting the ribs of wind turbine blades according to claim 1, characterized in that: The sliding bar (10) is provided with a mounting circular groove that matches the connecting motor (11), and the fixing bar (8) is provided with a fixing groove that matches the fixing motor (9).

7. The lifting device for lifting the ribs of wind turbine blades according to claim 1, characterized in that: A T-shaped sliding block (21) is fixedly mounted on the top of the sliding bar (10), and a T-shaped sliding groove matching the T-shaped sliding block (21) is provided on the bottom of the fixed plate (1).

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