Barrel turning lifting lug

Abstract

The utility model relates to the technical field of lifting lugs, and discloses a barrel turning lifting lug which comprises a bottom plate and a main connecting plate, the main connecting plate is fixed on one side of the bottom plate, a first lifting lug plate is arranged on one side of the main connecting plate, a plurality of through holes are formed in the bottom plate, a main connecting bolt is arranged on the through hole in the middle of the bottom plate, and a second lifting lug plate is arranged on the main connecting bolt. According to the rotor sail cylinder hoisting device, when the rotor sail cylinder hoisting device is hoisted, the lifting lug at one end is lifted, the rotor sail cylinder can be overturned and hoisted to be in the vertical state from the horizontal state, follow-up installation and fixation of the rotor sail cylinder are facilitated, and the rotor sail cylinder hoisting device is simple in structure, convenient to use and high in practicability. Meanwhile, the influence of thermal cutting after welding and hoisting on paint is avoided through bolt connection; and the bolt connection can be reused, so that the manufacturing of the lifting lug is saved.

Description

Technical Field

[0001] This utility model relates to the field of lifting lug technology, specifically to a cylinder turning lifting lug. Background Technology

[0002] The rotor sail hull is a rotatable, lightweight cylinder, typically made of high-strength, corrosion-resistant materials to ensure stable operation in harsh marine environments over extended periods. It forms the main body of the rotor sail and generates power through rotation.

[0003] The rotor sail utilizes the Magnus effect to propel a ship forward. When airflow passes over the rotating cylinder, it creates low pressure on one side and high pressure on the other, generating a lateral force perpendicular to the airflow direction. This force, projected onto the ship's direction of travel, becomes the thrust that propels the ship forward. By adjusting the rotor sail's rotation speed and direction, the magnitude and direction of this force can be adjusted, thus providing the necessary auxiliary thrust to the ship.

[0004] During installation, the rotor cylinder is generally transported horizontally to the assembly site using a flatbed truck. Then, the cylinder is turned from its horizontal position to a vertical position and then vertically hoisted and inserted into the base for assembly.

[0005] Existing lifting lugs for tower tilting are typically welded directly to the outer wall of the tower. After hoisting, these lugs need to be removed by thermal cutting, which damages the paint and may interfere with electrical structures inside the tower, such as cables, due to improper operation, thus adding many unnecessary troubles and potential risks. Therefore, a new type of tower tilting lifting lug is provided. Utility Model Content

[0006] The purpose of this utility model is to provide a cylinder turning and lifting lug to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cylinder turning lifting lug, comprising: a base plate and a main connecting plate, wherein the main connecting plate is fixed on one side of the base plate, and a first lifting lug plate is provided on one side of the main connecting plate; a plurality of through holes are opened in the base plate, a main connecting bolt is provided on the through hole located in the middle of the base plate, and a secondary connecting bolt is provided on the through holes located on both sides of the base plate; a first clamping plate is provided on one side of the base plate, and a second clamping plate is provided on the other side of the first clamping plate; the lifting lug is fixed to the cylinder by the main connecting bolt and the secondary connecting bolt; the cylinder is located between the first clamping plate and the second clamping plate; and a first reinforcing plate, a second reinforcing plate, and a third reinforcing plate are provided on both sides of the main connecting plate.

[0008] As a further explanation of this utility model, a roller is provided inside the first lifting lug plate, the roller is rotatably connected to the first lifting lug plate, and the two ends of the roller are flared outwards in a trumpet shape.

[0009] As a further explanation of this utility model, a first reinforcing connecting plate is provided between the first reinforcing plate and the second reinforcing plate, and a second reinforcing connecting plate is provided between the second reinforcing plate and the third reinforcing plate.

[0010] As a further explanation of this utility model, the outer wall contour of one side of the first clamping plate matches the outer wall contour of the cylinder, and the outer wall contour of one side of the second clamping plate matches the inner wall contour of the cylinder.

[0011] As a further explanation of this utility model, an M-shaped elastic piece is provided on one side of the second clamping plate. A through hole is opened in the M-shaped elastic piece located outside the main connecting bolt. The nut of the main connecting bolt abuts against one side of the M-shaped elastic piece.

[0012] As a further explanation of this utility model, the M-shaped elastic sheet has connecting edges at both ends, and screws are provided between the connecting edges and the second clamping plate.

[0013] As a further explanation of this utility model, the outer wall of the main connecting bolt is provided with an elastic rubber sleeve, one end of the elastic rubber sleeve is provided with a gasket, one side of the gasket abuts against the second clamping plate, and one end of the elastic rubber sleeve abuts against the M-shaped elastic sheet.

[0014] As a further explanation of this utility model, a second lifting lug plate is provided on one side of the main connecting plate, and a roller is also rotatably provided inside the second lifting lug plate.

[0015] As a further explanation of this utility model, both the second lifting lug plate and the first lifting lug plate are provided with lifting rings inside their rollers, and a steel wire rope is provided between the two lifting rings.

[0016] As a further explanation of this utility model, the first lifting lug plate and the second lifting lug plate are on the same plane and are arranged at an angle between them.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model, through the design of a first clamping plate, a second clamping plate, a first lifting lug plate, and a second lifting lug plate, enables the rotor sail body to have roller connection holes when using the lifting lug for turning the sail body. The entire lifting lug is fixed to both ends of the rotor sail body via main connecting bolts and auxiliary connecting bolts. During hoisting, lifting one end of the lifting lug allows the rotor sail body to be turned from a horizontal state to a vertical state, facilitating subsequent installation and fixing of the rotor sail body. Simultaneously, the bolt connection avoids the impact of welding and post-hoisting thermal cutting on the paint; moreover, the bolt connection can be reused, saving on the manufacturing of the lifting lugs.

[0019] In addition, during hoisting, the rollers can be connected to the hoisting wire rope. The rotation of the rollers and the smooth inner wall of the rollers, which are coated with lubricating oil, can reduce the wear between the hoisting wire rope and the lifting lugs. This prevents severe wear on the lifting holes of the wire rope and the lifting lugs when the rotor sail body changes from horizontal to vertical, thus improving the durability of the lifting lugs. Furthermore, the rollers can be replaced, which further extends the service life of the entire lifting lug.

[0020] Furthermore, when using the lifting lugs, by setting the angles of the first and second lifting lug plates, during the process of the rotor sail changing from horizontal to vertical during hoisting, the first lifting lug plate bears the force first, then the first and second lifting lug plates, and finally the second lifting lug plate bears the force. Through the alternation and sharing of force by the first and second lifting lug plates, the load requirements can be met while improving the service life of the lifting lugs.

[0021] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0022] Figure 1 This is a perspective view of the cylinder flipping lifting lug in Embodiment 1 of this utility model;

[0023] Figure 2 This is a perspective view of the cylinder turning lifting lug in Embodiment 1 of this utility model from another angle;

[0024] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This is a front view of the cylinder turning and lifting lug in Embodiment 1 of this utility model;

[0026] Figure 5 This is a top view of the cylinder turning lifting lug in Embodiment 1 of this utility model;

[0027] Figure 6 This is a perspective view of the cylinder flipping lifting lug in Embodiment 2 of this utility model;

[0028] Figure 7 This is a perspective view of the cylinder turning lifting lug in Embodiment 2 of this utility model from another angle;

[0029] Figure 8 This is a front view of the cylinder turning and lifting lug in Embodiment 2 of this utility model;

[0030] Figure 9 This is a top view of the cylinder turning lifting lug in Embodiment 2 of this utility model;

[0031] Figure 10 This is a perspective view of the cylinder flipping lifting lug in Embodiment 2 of this utility model.

[0032] In the diagram: 1. Base plate; 2. Main connecting plate; 3. First lifting lug plate; 4. Roller; 5. First reinforcing plate; 6. Second reinforcing plate; 7. First reinforcing connecting plate; 8. Third reinforcing plate; 9. Second reinforcing connecting plate; 10. First clamping plate; 11. Second clamping plate; 12. Secondary connecting bolt; 13. Main connecting bolt; 14. M-type elastic sheet; 15. Screw; 16. Washer; 17. Elastic rubber sleeve; 18. Second lifting lug plate; 19. Lifting ring; 20. Steel wire rope. Detailed Implementation

[0033] 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.

[0034] Example 1, please refer to Figures 1-5 This utility model provides a technical solution: a cylinder turning lifting lug, comprising: a base plate 1 and a main connecting plate 2. The base plate 1 is the foundation of the entire lifting lug structure, providing a plane for connection with the rotor sail cylinder. The main connecting plate 2 is fixed to one side of the base plate 1, and the main connecting plate 2 is a key component connecting the base plate 1 and the first lifting lug plate 3. It is located on one side of the base plate 1 and is fixed to the base plate 1 by welding or other connection methods. The main connecting plate 2 not only provides stability to the lifting lug structure but also ensures the overall strength of the lifting lug during the lifting process.

[0035] A first lifting lug plate 3 is provided on one side of the main connecting plate 2. The first lifting lug plate 3 is the main load-bearing component during the lifting process. It is usually designed as a plate-like structure with lifting holes for connecting lifting ropes or lifting equipment. Several through holes are opened in the base plate 1. The main connecting bolt 13 is installed in the through hole in the middle of the base plate 1, and the auxiliary connecting bolts 12 are installed in the through holes on both sides of the base plate 1. The several through holes opened in the base plate 1 are used to install the main connecting bolt 13 and the auxiliary connecting bolts 12. These bolts firmly fix the lifting lug to the rotor sail body. The through holes opened in the base plate 1 are used to install the main connecting bolt 13 and the auxiliary connecting bolts 12. The design of these through holes takes into account the diameter and spacing of the bolts to ensure that the bolts can be firmly fixed to the rotor sail body.

[0036] A first clamping plate 10 is provided on one side of the base plate 1, and a second clamping plate 11 is provided on the other side of the first clamping plate 10. Lifting lugs are fixed to the cylinder body by main connecting bolts 13 and auxiliary connecting bolts 12. The cylinder body is located between the first clamping plate 10 and the second clamping plate 11. The first clamping plate 10 and the second clamping plate 11 are used to clamp the rotor cylinder body, ensuring the stability of the lifting lugs during hoisting. They are located on both sides of the base plate 1 and fixed to the base plate 1 by bolts or other connection methods. The design of the first clamping plate 10 and the second clamping plate 11 takes into account the shape and size of the rotor cylinder body to ensure a good fit and clamping effect. During hoisting, they can prevent the rotor cylinder body from swaying and shifting, improving the safety and stability of hoisting.

[0037] The main connecting plate 2 has a first reinforcing plate 5, a second reinforcing plate 6, and a third reinforcing plate 8 on both sides. These three reinforcing plates enhance the overall strength and stability of the lifting lug structure. They are located on both sides of the main connecting plate 2 and near the first lifting lug plate 3, respectively, and are fixed to the main connecting plate 2 and the base plate 1 by welding or other connection methods. The design of these reinforcing plates takes into account the stress conditions of the lifting lug and the load distribution during lifting, ensuring that the lifting lug will not deform or be damaged under heavy loads. By adding reinforcing plates, the load-bearing capacity and service life of the lifting lug are significantly improved.

[0038] The first lifting lug plate 3 contains a roller 4, which is rotatably connected to the first lifting lug plate 3. The roller 4 has two flared ends. The roller 4 connects to the lifting wire rope. The rotation of the roller 4 and its smooth inner wall, coated with lubricant, reduce wear between the lifting wire rope and the lifting lug, preventing severe wear on the lifting holes when the rotor sail changes from horizontal to vertical, thus improving the durability of the lifting lug. Furthermore, the roller 4 is replaceable, further extending the overall service life of the lifting lug. The flared design of the roller 4 not only facilitates the smooth insertion and exit of the lifting wire rope but also distributes the pressure of the wire rope on the roller to a certain extent, reducing wear. The roller 4 is also designed for replaceability. During long-term use, although the inner wall of the roller 4 is specially treated and coated with lubricant, it may still gradually lose its smoothness due to wear. At this point, the user can easily replace the worn roller 4 through simple disassembly and replacement, further extending the service life of the entire lifting lug. This replaceable design not only improves the ease of maintenance of the lugs, but also reduces the user's maintenance costs.

[0039] A first reinforcing connecting plate 7 is provided between the first reinforcing plate 5 and the second reinforcing plate 6, and a second reinforcing connecting plate 9 is provided between the second reinforcing plate 6 and the third reinforcing plate 8. The first reinforcing connecting plate 7, located between the first reinforcing plate 5 and the second reinforcing plate 6, serves to connect and reinforce these two reinforcing plates. Through welding or other reliable connection methods, the first reinforcing connecting plate 7 firmly connects the first reinforcing plate 5 and the second reinforcing plate 6 together, forming a more stable triangular support structure. This design not only improves the lifting lug's resistance to deformation under heavy loads but also effectively disperses the stress generated during hoisting, reducing stress concentration in individual components. The second reinforcing connecting plate 9 functions similarly to the first reinforcing connecting plate 7, also serving a connecting and reinforcing function, but it connects the second reinforcing plate 6 and the third reinforcing plate 8. The addition of the second reinforcing connecting plate 9 further enhances the overall strength of the lifting lug structure. Simultaneously, the second reinforcing connecting plate 9 optimizes the stress distribution of the lifting lug, allowing it to bear the load more stably during hoisting and reducing the risk of structural damage due to uneven stress.

[0040] The outer wall contour of one side of the first clamping plate 10 matches the outer wall contour of the cylinder, and the outer wall contour of one side of the second clamping plate 11 matches the inner wall contour of the cylinder. The outer wall contours of one side of the first clamping plate 10 and the second clamping plate 11 match the inner and outer contours of the cylinder. This design ensures that the first clamping plate 10 and the second clamping plate 11 can fit tightly against the cylinder, reducing swaying and displacement during hoisting. Through precise contour matching, the first clamping plate 10 and the second clamping plate 11 can provide sufficient support, ensuring that the lifting lugs will not fall off or be damaged under heavy loads.

[0041] The second clamping plate 11 has an M-shaped elastic plate 14 on one side. A through hole is formed in the M-shaped elastic plate 14 outside the main connecting bolt 13. The nut of the main connecting bolt 13 abuts against one side of the M-shaped elastic plate 14. When the main connecting bolt 13 is tightened, its nut is tightly abutted against one side of the M-shaped elastic plate 14. Due to the good elasticity of the M-shaped elastic plate 14, it can generate a certain preload under the action of the nut, thereby effectively locking the main connecting bolt 13 and preventing loosening during vibration or long-term use. This design not only improves the stability of the lifting lug but also reduces safety hazards caused by bolt loosening.

[0042] The M-shaped elastic sheet 14 has connecting edges at both ends, and screws 15 are installed between the connecting edges and the second clamping plate 11. The connecting edges at both ends of the M-shaped elastic sheet 14 are designed to facilitate a secure connection between the M-shaped elastic sheet 14 and the second clamping plate 11. The presence of the connecting edges allows the M-shaped elastic sheet 14 to be accurately positioned during installation and forms a good contact surface with the second clamping plate 11, facilitating subsequent fixing with screws. The screws 15, as connectors, firmly fix the M-shaped elastic sheet 14 to the second clamping plate 11. By tightening the screws 15, sufficient preload is generated between the M-shaped elastic sheet 14 and the second clamping plate 11, ensuring that the M-shaped elastic sheet 14 will not loosen or shift due to vibration or load changes during hoisting.

[0043] The main connecting bolt 13 has an elastic rubber sleeve 17 on its outer wall. One end of the elastic rubber sleeve 17 has a washer 16, one side of which abuts against the second clamping plate 11, and the other end of the elastic rubber sleeve 17 abuts against the M-shaped elastic piece 14. The elastic rubber sleeve 17, with its unique elasticity and flexibility, plays a role in preventing loosening between the main connecting bolt 13 and the nut.

[0044] Example 2, please refer to Figures 6-10 This utility model provides a technical solution: a cylinder turning lifting lug, comprising: a base plate 1 and a main connecting plate 2. The base plate 1 is the foundation of the entire lifting lug structure, providing a plane for connection with the rotor sail cylinder. The main connecting plate 2 is fixed to one side of the base plate 1, and the main connecting plate 2 is a key component connecting the base plate 1 and the first lifting lug plate 3. It is located on one side of the base plate 1 and is fixed to the base plate 1 by welding or other connection methods. The main connecting plate 2 not only provides stability to the lifting lug structure but also ensures the overall strength of the lifting lug during the lifting process.

[0045] A first lifting lug plate 3 is provided on one side of the main connecting plate 2. The first lifting lug plate 3 is the main load-bearing component during the lifting process. It is usually designed as a plate-like structure with lifting holes for connecting lifting ropes or lifting equipment. Several through holes are opened in the base plate 1. The main connecting bolt 13 is installed in the through hole in the middle of the base plate 1, and the auxiliary connecting bolts 12 are installed in the through holes on both sides of the base plate 1. The several through holes opened in the base plate 1 are used to install the main connecting bolt 13 and the auxiliary connecting bolts 12. These bolts firmly fix the lifting lug to the rotor sail body. The through holes opened in the base plate 1 are used to install the main connecting bolt 13 and the auxiliary connecting bolts 12. The design of these through holes takes into account the diameter and spacing of the bolts to ensure that the bolts can be firmly fixed to the rotor sail body.

[0046] A first clamping plate 10 is provided on one side of the base plate 1, and a second clamping plate 11 is provided on the other side of the first clamping plate 10. Lifting lugs are fixed to the cylinder body by main connecting bolts 13 and auxiliary connecting bolts 12. The cylinder body is located between the first clamping plate 10 and the second clamping plate 11. The first clamping plate 10 and the second clamping plate 11 are used to clamp the rotor cylinder body, ensuring the stability of the lifting lugs during hoisting. They are located on both sides of the base plate 1 and fixed to the base plate 1 by bolts or other connection methods. The design of the first clamping plate 10 and the second clamping plate 11 takes into account the shape and size of the rotor cylinder body to ensure a good fit and clamping effect. During hoisting, they can prevent the rotor cylinder body from swaying and shifting, improving the safety and stability of hoisting.

[0047] The main connecting plate 2 has a first reinforcing plate 5, a second reinforcing plate 6, and a third reinforcing plate 8 on both sides. These three reinforcing plates enhance the overall strength and stability of the lifting lug structure. They are located on both sides of the main connecting plate 2 and near the first lifting lug plate 3, respectively, and are fixed to the main connecting plate 2 and the base plate 1 by welding or other connection methods. The design of these reinforcing plates takes into account the stress conditions of the lifting lug and the load distribution during lifting, ensuring that the lifting lug will not deform or be damaged under heavy loads. By adding reinforcing plates, the load-bearing capacity and service life of the lifting lug are significantly improved.

[0048] The first lifting lug plate 3 contains a roller 4, which is rotatably connected to the first lifting lug plate 3. The roller 4 has two flared ends. The roller 4 connects to the lifting wire rope. The rotation of the roller 4 and its smooth inner wall, coated with lubricant, reduce wear between the lifting wire rope and the lifting lug, preventing severe wear on the lifting holes when the rotor sail changes from horizontal to vertical, thus improving the durability of the lifting lug. Furthermore, the roller 4 is replaceable, further extending the overall service life of the lifting lug. The flared design of the roller 4 not only facilitates the smooth insertion and exit of the lifting wire rope but also distributes the pressure of the wire rope on the roller to a certain extent, reducing wear. The roller 4 is also designed for replaceability. During long-term use, although the inner wall of the roller 4 is specially treated and coated with lubricant, it may still gradually lose its smoothness due to wear. At this point, the user can easily replace the worn roller 4 through simple disassembly and replacement, further extending the service life of the entire lifting lug. This replaceable design not only improves the ease of maintenance of the lugs, but also reduces the user's maintenance costs.

[0049] A first reinforcing connecting plate 7 is provided between the first reinforcing plate 5 and the second reinforcing plate 6, and a second reinforcing connecting plate 9 is provided between the second reinforcing plate 6 and the third reinforcing plate 8. The first reinforcing connecting plate 7, located between the first reinforcing plate 5 and the second reinforcing plate 6, serves to connect and reinforce these two reinforcing plates. Through welding or other reliable connection methods, the first reinforcing connecting plate 7 firmly connects the first reinforcing plate 5 and the second reinforcing plate 6 together, forming a more stable triangular support structure. This design not only improves the lifting lug's resistance to deformation under heavy loads but also effectively disperses the stress generated during hoisting, reducing stress concentration in individual components. The second reinforcing connecting plate 9 functions similarly to the first reinforcing connecting plate 7, also serving a connecting and reinforcing function, but it connects the second reinforcing plate 6 and the third reinforcing plate 8. The addition of the second reinforcing connecting plate 9 further enhances the overall strength of the lifting lug structure. Simultaneously, the second reinforcing connecting plate 9 optimizes the stress distribution of the lifting lug, allowing it to bear the load more stably during hoisting and reducing the risk of structural damage due to uneven stress.

[0050] The outer wall contour of one side of the first clamping plate 10 matches the outer wall contour of the cylinder, and the outer wall contour of one side of the second clamping plate 11 matches the inner wall contour of the cylinder. The outer wall contours of one side of the first clamping plate 10 and the second clamping plate 11 match the inner and outer contours of the cylinder. This design ensures that the first clamping plate 10 and the second clamping plate 11 can fit tightly against the cylinder, reducing swaying and displacement during hoisting. Through precise contour matching, the first clamping plate 10 and the second clamping plate 11 can provide sufficient support, ensuring that the lifting lugs will not fall off or be damaged under heavy loads.

[0051] In this embodiment, an M-shaped elastic plate 14 is provided on one side of the second clamping plate 11. A through hole is formed in the M-shaped elastic plate 14 outside the main connecting bolt 13. The nut of the main connecting bolt 13 abuts against one side of the M-shaped elastic plate 14. When the main connecting bolt 13 is tightened, its nut abuts tightly against one side of the M-shaped elastic plate 14. Because the M-shaped elastic plate 14 has good elasticity, it can generate a certain preload under the action of the nut, thereby effectively locking the main connecting bolt 13 and preventing loosening during vibration or long-term use. This design not only improves the stability of the lifting lug but also reduces safety hazards caused by bolt loosening.

[0052] The M-shaped elastic sheet 14 has connecting edges at both ends, and screws 15 are installed between the connecting edges and the second clamping plate 11. The connecting edges at both ends of the M-shaped elastic sheet 14 are designed to facilitate a secure connection between the M-shaped elastic sheet 14 and the second clamping plate 11. The presence of the connecting edges allows the M-shaped elastic sheet 14 to be accurately positioned during installation and forms a good contact surface with the second clamping plate 11, facilitating subsequent fixing with screws. The screws 15, as connectors, firmly fix the M-shaped elastic sheet 14 to the second clamping plate 11. By tightening the screws 15, sufficient preload is generated between the M-shaped elastic sheet 14 and the second clamping plate 11, ensuring that the M-shaped elastic sheet 14 will not loosen or shift due to vibration or load changes during hoisting.

[0053] The main connecting bolt 13 has an elastic rubber sleeve 17 on its outer wall. One end of the elastic rubber sleeve 17 has a washer 16, one side of which abuts against the second clamping plate 11, and the other end of the elastic rubber sleeve 17 abuts against the M-shaped elastic piece 14. The elastic rubber sleeve 17, with its unique elasticity and flexibility, plays a role in preventing loosening between the main connecting bolt 13 and the nut.

[0054] A second lifting lug 18 is provided on one side of the main connecting plate 2, and a roller 4 is also rotatably installed inside the second lifting lug 18. Lifting rings 19 are provided inside the rollers 4 of both the second lifting lug 18 and the first lifting lug 3, and a wire rope 20 is installed between the two lifting rings 19. The first lifting lug 3 serves as the initial stress point of the lifting system, and is connected to the wire rope 20 through its internal rollers 4 and lifting rings 19. During the lifting process, the first lifting lug 3 initially bears the weight of the rotor sail body and guides it from a horizontal state to a vertical state.

[0055] The second lifting lug 18 is located on one side of the main connecting plate 2. Its structure is similar to that of the first lifting lug 3, and it is also equipped with a roller 4 and a lifting ring 19. When the rotor sail body is flipped to a near-vertical state, the second lifting lug 18 begins to gradually bear the force and shares the weight of the rotor sail body with the first lifting lug 3.

[0056] The first lifting lug 3 and the second lifting lug 18 are on the same plane and set at a 90-degree angle to each other. This design not only optimizes the spatial layout of the lifting system but also achieves a reasonable distribution of force on the lifting lugs. During the lifting process, as the rotor sail body rotates, the first lifting lug 3 is stressed first, and then as the rotation angle increases, the second lifting lug 18 gradually begins to be stressed. This alternating force distribution not only ensures the stability of the lifting process but also avoids fatigue damage to a single lifting lug caused by bearing heavy loads for a long time.

[0057] When using the lifting lugs for the rotating cylinder, the rotor sail cylinder has roller connection holes. The entire lifting lug is fixed to both ends of the rotor sail cylinder by the main connecting bolt 13 and the auxiliary connecting bolt 12. During hoisting, lifting one end of the lifting lug can rotate the rotor sail cylinder from a horizontal state to a vertical state, which facilitates the subsequent installation and fixing of the rotor sail cylinder. At the same time, the bolt connection avoids the impact of welding and hot cutting after hoisting on the paint. Moreover, the bolt connection can be reused, saving on the production of lifting lugs.

[0058] In addition, during hoisting, the roller 4 can be connected to the hoisting wire rope. The rotation of the roller 4 and the smooth inner wall of the roller 4 coated with lubricating oil can reduce the wear between the hoisting wire rope and the lifting lug. This avoids severe wear on the lifting holes of the wire rope and the lifting lug when the rotor sail body changes from horizontal to vertical, thus improving the durability of the lifting lug. Furthermore, the roller 4 can be replaced, which further extends the service life of the entire lifting lug.

[0059] Furthermore, when using the lifting lugs, by setting the first lifting lug plate 3 and the second lifting lug plate 18 at 90 degrees, during the process of the rotor sail body changing from horizontal to vertical during hoisting, the first lifting lug plate 3 is stressed first, then the first lifting lug plate 3 and the second lifting lug plate 18, and finally the second lifting lug plate 18. Through the alternation and sharing of the stress by the first lifting lug plate 3 and the second lifting lug plate 18, the load requirements can be met while improving the service life of the lifting lugs.

[0060] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. Cylinder body turning and lifting lugs, including: The base plate (1) and the main connecting plate (2) are characterized in that: the main connecting plate (2) is fixed on one side of the base plate (1), the main connecting plate (2) is provided with a first lifting lug plate (3) on one side, the base plate (1) is provided with several through holes, the main connecting bolt (13) is provided on the through hole in the middle of the base plate (1), the auxiliary connecting bolt (12) is provided on the through holes on both sides of the base plate (1), the base plate (1) is provided with a first clamping plate (10) on one side, the first clamping plate (10) is provided with a second clamping plate (11) on the other side, the lifting lug is fixed on the cylinder by the main connecting bolt (13) and the auxiliary connecting bolt (12), the cylinder is located between the first clamping plate (10) and the second clamping plate (11), and the main connecting plate (2) is provided with a first reinforcing plate (5), a second reinforcing plate (6) and a third reinforcing plate (8) on both sides.

2. The cylinder turning and lifting lug according to claim 1, characterized in that: The first lifting lug plate (3) is provided with a roller (4), which is rotatably connected to the first lifting lug plate (3). The two ends of the roller (4) are flared outwards.

3. The cylinder turning and lifting lug according to claim 1, characterized in that: A first reinforcing connecting plate (7) is provided between the first reinforcing plate (5) and the second reinforcing plate (6), and a second reinforcing connecting plate (9) is provided between the second reinforcing plate (6) and the third reinforcing plate (8).

4. The cylinder turning and lifting lug according to claim 1, characterized in that: The outer wall contour of one side of the first clamping plate (10) matches the outer wall contour of the cylinder, and the outer wall contour of one side of the second clamping plate (11) matches the inner wall contour of the cylinder.

5. The cylinder turning and lifting lug according to claim 1, characterized in that: The second clamping plate (11) has an M-shaped elastic piece (14) on one side. The M-shaped elastic piece (14) has a through hole located outside the main connecting bolt (13). The nut of the main connecting bolt (13) abuts against one side of the M-shaped elastic piece (14).

6. The cylinder turning and lifting lug according to claim 5, characterized in that: The M-shaped elastic sheet (14) has connecting edges at both ends, and screws (15) are provided between the connecting edges and the second clamping plate (11).

7. The cylinder turning and lifting lug according to claim 6, characterized in that: The outer wall of the main connecting bolt (13) is provided with an elastic rubber sleeve (17), and one end of the elastic rubber sleeve (17) is provided with a gasket (16). One side of the gasket (16) abuts against the second clamping plate (11), and one end of the elastic rubber sleeve (17) abuts against the M-shaped elastic sheet (14).

8. The cylinder turning and lifting lug according to claim 2, characterized in that: The main connecting plate (2) is provided with a second lifting lug plate (18) on one side, and a roller (4) is also provided inside the second lifting lug plate (18).

9. The cylinder turning and lifting lug according to claim 8, characterized in that: The second lifting lug (18) and the first lifting lug (3) are both provided with lifting rings (19) in the rollers (4), and a steel wire rope (20) is provided between the two lifting rings (19).

10. The cylinder turning and lifting lug according to claim 8, characterized in that: The first lifting lug (3) and the second lifting lug (18) are on the same plane and are set at a 90-degree angle to each other.

Images