A lifting and turning device for wind turbine blades

Abstract

This application relates to the field of lifting devices and discloses a lifting and turning device for wind turbine blades. The device includes a reference rod, a main force-bearing column welded to the upper surface of one side of the reference rod, an adjusting working frame welded to the side surface of the main force-bearing column, an adjusting rod movably connected to the inner surface of the adjusting working frame, a movable pulley movably sleeved on the outer surface of the adjusting rod, a force-bearing crossbeam welded to the upper surface of the main force-bearing column, and an adjusting rope fixedly connected to the corresponding outer surface of the movable pulley. The device is lifted as a whole by placing it on an arc-shaped bar and a reference working block. When it reaches the desired position for turning, the adjusting rope is used to lift the movable pulley upwards. The corresponding adjusting rod rises, and an electric lifting block and contact pad at that end compress and lift the wind turbine blade, thus completing the turning. The main force-bearing column and the adjusting working frame ensure the force on that side of the device. The limiting position of the adjusting rod at the adjusting working frame ensures the movable pulley moves vertically, thus requiring only half the traction force to ensure the turning of the wind turbine blade.

Description

Technical Field

[0001] This application belongs to the field of lifting device technology, specifically a lifting and turning device for wind turbine blades. Background Technology

[0002] Wind turbine blades are one of the key core components of wind turbine units that convert wind energy into mechanical energy. They are also the foundation for wind turbines to achieve higher utilization hours and economic benefits, and directly affect the conversion efficiency of wind energy.

[0003] For example, application CN220449586U discloses a lifting and turning device for wind turbine blades, including a base and casters. The casters are installed at the bottom of the base, and a column is fixedly connected to the top surface of the base. A central shaft is rotatably connected to one side of the column, a first support arm is fixedly connected to one side of the central shaft, and a second support arm is fixedly connected to the other side of the central shaft. A rotating ring is connected to the other end of the first and second support arms. This invention places the wind turbine blade inside the rotating ring, then starts the motor connected to an external power source, drives the belt to rotate, and thus causes the first and second rotating shafts to rotate. The rotating ring is fixed by the column, the central shaft, the first support arm, and the second support arm. At this time, the serrations on the surfaces of the first and second rotating shafts mesh with the serrations on the outer wall of the rotating ring, thereby causing the wind turbine blade to rotate and turn, avoiding damage to the wind turbine blade due to the shift of the center of gravity.

[0004] However, suspended lifting operations require reduced traction to ensure safer and more stable operation. Utility Model Content

[0005] The purpose of this application is to provide a lifting and turning device for wind turbine blades in order to solve the problems mentioned above.

[0006] The technical solution adopted in this application is as follows: a lifting and turning device for wind turbine blades, including a reference rod, a main force-bearing column welded to the upper surface of one side of the reference rod, an adjusting working frame welded to the side surface of the main force-bearing column, an adjusting rod movably connected to the inner surface of the adjusting working frame, a movable pulley movably sleeved on the outer surface of the adjusting rod, a force-bearing crossbeam welded to the upper surface of the main force-bearing column, and an adjusting rope fixedly connected to the outer surface of the force-bearing crossbeam corresponding to the movable pulley.

[0007] By adopting the above technical solution, the reference rod is the overall reference component of the device. The equipment is lifted as a whole by placing it on the arc-shaped strip and the reference working block. When it needs to be flipped when it reaches the position, the traction adjustment rope drives the movable pulley to be lifted upward. The corresponding adjustment rod rises, the electric lifting block and the contact pad squeeze and lift the wind turbine blade at this end, thereby completing the flipping. The main force column and the adjustment working frame ensure the force on this side of the device. The limit of the adjustment rod at the adjustment working frame ensures the straight up and down of the movable pulley. Through the definition of the movable pulley, half of the traction force can be used to ensure the flipping of the wind turbine blade.

[0008] In a preferred embodiment, a lifting block is provided on the outer surface between the movable pulleys, and a contact pad is fixedly connected to the outer surface of the lifting block.

[0009] By adopting the above technical solution, the lifting block and contact pad squeeze and lift the wind turbine blade at one end. The extended length of the lifting block facilitates contact with the wind turbine blade, and the contact pad is made of hard rubber to ensure both cushioning and friction, thereby ensuring that the blade can be flipped under force.

[0010] In a preferred embodiment, a support column is welded to the upper surface of the reference rod, and an arc-shaped strip is welded to the upper surface of the support column.

[0011] By adopting the above technical solutions, the support columns and curved strips are used to increase physical rigidity and provide the necessary support.

[0012] In a preferred embodiment, a support frame is welded to the upper surface of the end of the reference rod away from the main force-bearing column, and a reference working block is provided on the inner surface of the upper end of the support frame.

[0013] By adopting the above technical solution, the support frame provides external support, and the spring sheet built into the upper inner surface keeps it tightly attached to the support frame when the reference working block is not under force.

[0014] In a preferred embodiment, a connecting beam is welded to the lower end side surface of the reference rod, and a secondary reference frame is movably connected to the outer surface of the connecting beam.

[0015] By adopting the above technical solution, the support is completed by connecting the crossbeam welded on the side and the corresponding reference rod, main load-bearing column, support column, and arc-shaped secondary reference frame on the other side.

[0016] In a preferred embodiment, the outer surface of the connecting beam is provided with a threaded hole, and the outer surface of the corresponding position of the sub-reference frame is also provided with a threaded hole, and a long screw is engaged with the outer surface of the threaded hole.

[0017] By adopting the above technical solution, the long screw is fixed in the threaded hole to form an integral part, and the width can be easily adjusted, thus facilitating the installation of wind turbine blades of different sizes.

[0018] In a preferred embodiment, an extension rod is movably inserted into the outer surface of the reference rod, and upper force-bearing holes are welded to the outer surfaces of both ends of the force-bearing beam.

[0019] By adopting the above technical solution, the extension rod is detachable, which facilitates external support. It can be connected to an external cable through the upper force-bearing hole or the lower force-bearing plate and auxiliary force-bearing plate for traction.

[0020] In a preferred embodiment, a lower force-bearing plate is welded to the lower surface of the reference rod corresponding to the extension rod end, and an auxiliary force-bearing plate is detachably connected to the lower surface of the reference rod end away from the lower force-bearing plate.

[0021] By adopting the above technical solution, the lower force-bearing plate is welded to the device. Support is required at the front end, while the rear end may bear force at the upper force-bearing hole. Thus, the disassembly of the secondary force-bearing plate reduces gravity and the lifting weight.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are: In this application, the reference rod is the overall reference component of the device. The equipment is lifted as a whole by placing it on the arc-shaped bar and the reference working block. When it needs to be flipped when it reaches the position, the traction adjustment rope drives the movable pulley to be lifted upward. The corresponding adjustment rod rises, the electric lifting block and the contact pad squeeze and lift the wind turbine blade at this end, thereby completing the flipping. The main force column and the adjustment working frame ensure the force on this side of the device. The limit of the adjustment rod at the adjustment working frame ensures the straight up and down of the movable pulley. Through the definition of the movable pulley, half of the traction force can be used to ensure the flipping of the wind turbine blade. Attached Figure Description

[0023] Figure 1 This is a front view of the device in this application; Figure 2 This is a side view of the equipment in this application; Figure 3 This is a reverse view of the equipment in this application; Figure 4 This is a bottom view of the equipment in this application.

[0024] The markings in the diagram are: 1. Reference rod; 2. Main load-bearing column; 3. Adjusting working frame; 4. Adjusting rod; 5. Movable pulley; 6. Load-bearing crossbeam; 7. Adjusting rope; 8. Support column; 9. Arc strip; 10. Support frame; 11. Reference working block; 12. Connecting crossbeam; 13. Secondary reference frame; 14. Threaded hole; 15. Long screw; 16. Extension rod; 17. Upper load-bearing hole; 18. Lower load-bearing plate; 19. Secondary load-bearing plate; 20. Lifting block; 21. Contact pad. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example

[0026] Reference Figure 1-4 A lifting and turning device for wind turbine blades includes a reference rod 1, a main force-bearing column 2 welded to the upper surface of one side of the reference rod 1, an adjusting working frame 3 welded to the side surface of the main force-bearing column 2, an adjusting rod 4 movably connected to the inner surface of the adjusting working frame 3, a movable pulley 5 movably sleeved on the outer surface of the adjusting rod 4, a force-bearing crossbeam 6 welded to the upper surface of the main force-bearing column 2, and an adjusting rope 7 fixedly connected to the outer surface of the force-bearing crossbeam 6 corresponding to the movable pulley 5.

[0027] The reference rod 1 is the overall reference component of the device. The equipment is lifted as a whole by placing it on the arc-shaped bar 9 and the reference working block 11. When it needs to be flipped when it reaches the position, the traction adjustment rope 7 drives the movable pulley 5 to be lifted upward. The corresponding adjustment rod 4 rises, the electric lifting block 20 and the contact pad 21 squeeze and lift the wind turbine blade at this end, thereby completing the flipping. The main force column 2 and the adjustment working frame 3 ensure the force on this side of the device. The limit of the adjustment rod 4 at the adjustment working frame 3 ensures that the movable pulley 5 moves straight up and down. Through the definition of the movable pulley, half of the traction force can be used to ensure the flipping of the wind turbine blade.

[0028] Reference Figure 1-4 A lifting block 20 is provided on the outer surface between the movable pulleys 5, and a contact pad 21 is fixedly connected to the outer surface of the lifting block 20.

[0029] The lifting block 20 and the contact pad 21 are used to press and lift the wind turbine blade at one end. The extended length of the lifting block 20 is convenient to hold the wind turbine blade. The contact pad 21 is made of hard rubber to ensure cushioning and friction, thereby ensuring that it can be flipped under force.

[0030] Reference Figure 1-4 A support column 8 is welded to the upper surface of the reference rod 1, and an arc strip 9 is welded to the upper surface of the support column 8.

[0031] Support columns 8 and curved strips 9 are used to increase physical rigidity and provide the necessary support.

[0032] Reference Figure 1-4 A support frame 10 is welded to the upper surface of the end of the reference rod 1 away from the main load-bearing column 2, and a reference working block 11 is provided on the inner surface of the upper end of the support frame 10.

[0033] The support frame 10 provides external support, and the spring sheet built into the upper inner surface keeps it close to the support frame 10 when the reference working block 11 is not under force.

[0034] Reference Figure 1-4 A connecting beam 12 is welded to the lower side surface of the reference rod 1, and a secondary reference frame 13 is movably connected to the outer surface of the connecting beam 12.

[0035] The support is completed by connecting the crossbeam 12 welded on the side, and the secondary reference frame 13, which has the same shape as the reference rod 1, main load-bearing column 2, support column 8, and arc strip 9, on the other side.

[0036] Reference Figure 1-4 The outer surface of the connecting beam 12 is provided with a threaded hole 14, and the outer surface of the corresponding position of the sub-reference frame 13 is also provided with a threaded hole 14. A long screw 15 is engaged with the outer surface of the threaded hole 14.

[0037] The long screw 15 is fixed in the threaded hole 14 to form a whole, and at the same time, it is convenient to adjust the width, thus facilitating the installation of wind turbine blades of different sizes.

[0038] Reference Figure 1-4 An extension rod 16 is movably inserted into the outer surface of the reference rod 1, and upper force-bearing holes 17 are welded to the outer surfaces of both ends of the force-bearing crossbeam 6.

[0039] The extension rod 16 is detachable, making it easy to support externally. It can be connected to an external cable through the upper force-bearing hole 17 or the lower force-bearing plate 18 and the auxiliary force-bearing plate 19 for traction.

[0040] Reference Figure 1-4 A lower force-bearing plate 18 is welded to the lower surface of the end of the reference rod 1 corresponding to the extension rod 16. A secondary force-bearing plate 19 is detachably connected to the lower surface of the end of the reference rod 1 away from the lower force-bearing plate 18.

[0041] The lower load-bearing plate 18 is welded to the device. It needs to be supported at the front end, while the rear end may be stressed at the upper load-bearing hole 17. Thus, the disassembly of the secondary load-bearing plate 19 reduces gravity and the weight of the lifting.

[0042] The implementation principle of the wind turbine blade lifting and turning device embodiment of this application is as follows: The device connects to external cables via the upper force-bearing hole 17 or the lower force-bearing plate 18 and auxiliary force-bearing plate 19, further connecting to the lifting device to complete the synchronous lifting and flipping of the wind turbine blades. One side of the device uses a reference rod 1, main force-bearing column 2, and support frame 10 as a reference frame, while the middle support column 8 and arc-shaped strip 9 assist in increasing physical rigidity and providing necessary support. A connecting beam 12 is welded to the side, and the other side has a corresponding shape, fixed to the threaded hole 14 with long screws 15 to form a single unit. This also facilitates width adjustment, thus facilitating the installation of wind turbine blades of different sizes. Similarly, the extension rod 16 is detachable for convenient external support. The equipment is placed on an arc... The wind turbine blade is lifted as a whole at the reference working block 11 and the traction adjustment rope 7 drives the movable pulley 5 to rise when it reaches the position to be flipped. The corresponding adjustment rod 4 rises, the electric lifting block 20 and the contact pad 21 squeeze and lift the wind turbine blade at this end, thereby completing the flipping. The main force column 2 and the adjustment working frame 3 ensure the force on this side of the device. The limit of the adjustment rod 4 at the adjustment working frame 3 ensures the straight up and down of the movable pulley 5. Through the definition of the movable pulley, half of the traction force can be used to ensure the flipping of the wind turbine blade. The support frame 10 provides external support. The upper inner surface has built-in springs that fit tightly against the support frame 10 when the reference working block 11 is not under force.

[0043] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A lifting and turning device for wind turbine blades, comprising a reference rod (1), characterized in that: The reference rod (1) has a main force column (2) welded to one side of its upper surface. The main force column (2) has an adjustment frame (3) welded to its side surface. The adjustment frame (3) has an adjustment rod (4) movably connected to its inner surface. The adjustment rod (4) has a movable pulley (5) movably sleeved on its outer surface. The main force column (2) has a force beam (6) welded to its upper surface. The force beam (6) has an adjustment rope (7) fixedly connected to the outer surface of the movable pulley (5).

2. The lifting and turning device for wind turbine blades as described in claim 1, characterized in that: A lifting block (20) is provided on the outer surface between the movable pulleys (5), and a contact pad (21) is fixedly connected to the outer surface of the lifting block (20).

3. The lifting and turning device for wind turbine blades as described in claim 1, characterized in that: The reference rod (1) has a support column (8) welded on its upper surface, and the support column (8) has an arc-shaped strip (9) welded on its upper surface.

4. The lifting and turning device for wind turbine blades as described in claim 1, characterized in that: A support frame (10) is welded to the upper surface of the end of the reference rod (1) away from the main force column (2), and a reference working block (11) is provided on the inner surface of the upper end of the support frame (10).

5. The lifting and turning device for wind turbine blades as described in claim 1, characterized in that: A connecting beam (12) is welded to the lower side surface of the reference rod (1), and a secondary reference frame (13) is movably connected to the outer surface of the connecting beam (12).

6. The lifting and turning device for wind turbine blades as described in claim 5, characterized in that: The outer surface of the connecting beam (12) is provided with a threaded hole (14), and the outer surface of the corresponding position of the sub-reference frame (13) is also provided with a threaded hole (14). A long screw (15) is engaged with the outer surface of the threaded hole (14).

7. The lifting and turning device for wind turbine blades as described in claim 1, characterized in that: An extension rod (16) is movably inserted into the outer surface of the reference rod (1), and upper force-bearing holes (17) are welded to the outer surfaces of both ends of the force-bearing beam (6).

8. The lifting and turning device for wind turbine blades as described in claim 1, characterized in that: The lower surface of the reference rod (1) corresponding to the lower end of the extension rod (16) is welded with a lower force plate (18), and the lower surface of the reference rod (1) away from the lower force plate (18) is detachably connected with a secondary force plate (19).

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