Lifting rope suspension device for fan tower drum operation

Abstract

The utility model relates to the technical field of fan tower maintenance, in particular to a lifting rope suspension device for fan tower operation. Comprising a shroud ring, a cushion block and a sliding block, the shroud ring is clamped on the tower drum after being matched with the cushion block; the sliding block is installed on the hoop ring and slides along the surface of the hoop ring in an arc-shaped mode. The hoop ring is of a split annular structure, a matching edge is arranged at the butt joint position of the hoop ring, bolt holes are formed in the matching edge, the bolt holes are evenly distributed in the matching edge, and the hoop ring is locked and fixed to the top of the tower barrel through fastening bolts. The problems that the edge of the fan shell is easily scratched by the suspended operation lifting rope during operation and the connection stability of existing equipment is insufficient are solved, the working efficiency is improved, and the operation safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine tower maintenance, and in particular to a wind turbine tower operation rope suspension device. Background Technology

[0002] As a clean and sustainable energy source, wind energy occupies an important position in the energy structure, and wind power generation is also a key component of energy transition. As a supporting component of wind turbines, the tower requires regular maintenance; the outer wall of the tower should be regularly cleaned, repainted, inspected for flaws, and cleaned. During operation, a hoisting rope is typically suspended from the gearbox or nacelle lifting point to raise and lower the basket, personnel, or corresponding machinery. This suspension method easily scratches the edges of the wind turbine casing, and the turbine must be stopped during operation, reducing the unit's working efficiency.

[0003] Patent application number 201920192347.9 discloses a cleaning fixture for wind turbine towers, comprising: a lower ring for engaging with the tower and supporting a worker's standing position; a hoist detachably connected to the lower ring; an upper ring fixed to the top of the tower; and a safety device. The upper ring engages with the top of the tower. Because the tower has a conical structure, the upper ring will not move after engagement. A safety rope is connected to the upper ring and can rotate around the tower to protect the worker's safety during operation and prevent falls from the edge of the lower ring. This patent does not affect the normal operation of the nacelle and blades and enables tower cleaning during operation. However, because the conical structure of the tower is not consistent with the cylindrical structure of the upper ring, a gap will appear at the upper part of the contact surface when the upper ring is fixed to the tower, affecting the stability of the connection.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a wind turbine tower operation hoisting rope suspension device in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this utility model is to provide a wind turbine tower operation rope suspension device to address the shortcomings of existing technologies, thereby solving the problems that the suspended operation rope is prone to scratching the edge of the wind turbine casing and the insufficient connection stability of existing equipment, thus improving work efficiency and ensuring operational safety.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a wind turbine tower operation hoisting rope suspension device, including a hoop, a pad, and a slider; the hoop and the pad are engaged and locked onto the tower; the slider is installed on the hoop and slides along the arc of the hoop surface; the hoop is a split ring structure, and a mating edge is provided at the joint of the hoop, and bolt holes are opened on the mating edge, the bolt holes are evenly distributed on the mating edge, and the hoop is locked and fixed to the top of the tower by fastening bolts.

[0007] Furthermore, the hoop has annular grooves symmetrically formed along its center line.

[0008] It is located in the middle of the hoop.

[0009] Furthermore, the pad has a wedge-shaped structure, and the side of the pad that contacts the tower is a supporting curved surface. The opposite side of the supporting curved surface has a recessed mating plane that mates with the hoop. The width of the mating plane is greater than the width of the hoop.

[0010] Furthermore, the pad is disposed between the tower and the hoop, and the pad and the hoop are fixed together at the top of the tower and in direct contact with the tower.

[0011] Furthermore, the pad is made of a flexible material.

[0012] Furthermore, the pad is provided with at least one block, and is evenly distributed along the circumference of the tower. The number of pads increases accordingly according to different operating conditions, and the number of pads is always kept as an integer multiple.

[0013] Furthermore, the slider is installed in the annular groove of the hoop, the side of the slider is H-shaped, and the upper and lower parts of the slider are provided with transverse grooves that cooperate with the edge of the annular groove, and slide back and forth along the annular groove to adjust to an appropriate position.

[0014] Furthermore, each of the annular grooves contains two of the sliders.

[0015] Furthermore, a threaded through hole is provided at the center of the slider, and the threaded through hole is used to install a corresponding work rope suspension component.

[0016] The structure comprises a hoop, a pad, and a slider; the hoop and the pad are engaged and locked onto the tower; the slider is mounted on the hoop and slides along the arc of the hoop surface; the hoop is a split ring structure with a mating edge at the joint, bolt holes evenly distributed on the mating edge, and the hoop is locked and fixed to the top of the tower by fastening bolts. This structure solves the problems of the hanging rope easily scratching the edge of the wind turbine casing and the insufficient connection stability of existing equipment, thereby improving work efficiency and ensuring operational safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model;

[0019] Figure 2 This is a perspective view of the present utility model;

[0020] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0021] Figure 4 This is a perspective view of the hoop ring of this utility model;

[0022] Figure 5 This is a perspective view of the pad block of this utility model;

[0023] Figure label:

[0024] 1 is a hoop, 11 is an annular groove, 12 is a fastening bolt, 13 is a mating edge, 2 is a pad, 21 is a supporting curved surface, 22 is a mating plane, 3 is a slider, 31 is a threaded through hole, 32 is a horizontal groove, 4 is a tower, 5 is a working hoisting rope, and 6 is a suspended platform. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] A wind turbine tower operation rope suspension device, such as Figure 1 , 2 As shown in Figure 3, the structure includes a hoop 1, a pad 2, and a slider 3. The hoop 1 and the pad 2 are engaged and locked onto the tower 4. The slider 3 is installed on the hoop 1 and slides along the arc of the surface of the hoop 1. The hoop 1 is a split ring structure. The joint of the hoop 1 is provided with a mating edge 13. The mating edge 13 has bolt holes. The bolt holes are evenly distributed on the mating edge 13. The hoop 1 is locked and fixed to the top of the tower 4 by fastening bolts 12.

[0028] Specifically, through the split ring structure of the hoop 1, and with the matching bolt holes and fastening bolts 12, the hoop 1 can be tightly and firmly fixed to the top of the tower 4, solving the problem of gaps that traditionally exist at the contact surface between the circular ring and the conical tower, enhancing the stability and safety of the connection. Furthermore, because the hoop 1 is split and the bolt holes are evenly distributed on the mating edge 13, the position and number of fastening bolts 12 can be adjusted to flexibly adapt to towers of different diameters, improving the versatility and adaptability of the device. Adding a spacer 2 between the hoop 1 and the tower 4 can further enhance the stability and safety of the connection. This effectively prevents scratches or damage caused by direct contact between the hoop ring and the tower surface, protecting the integrity of the tower and increasing the stability of the contact. The slider 3 is installed on the hoop ring 1 and can slide along its surface in an arc, allowing the working rope or related equipment to be flexibly arranged around the tower. This not only reduces the risk of scratching the wind turbine casing but also improves the flexibility and convenience of the operation. Furthermore, it allows for tower cleaning, rust removal, and paint touch-up maintenance without affecting the normal operation of the wind turbine, avoiding the limitation of needing to stop the machine in traditional operation methods, thereby improving the overall working efficiency of the unit.

[0029] As a preferred embodiment of the above embodiment, the hoop 1 has an annular groove 11 symmetrically formed along its center line, and the annular groove 11 is located at the middle position of the hoop 1.

[0030] Specifically, by introducing an annular groove 11 at the central position, the stress distribution of the hoop under load is dispersed and balanced. This enhances the overall structural strength of the hoop, making it more stable and reliable when subjected to various forces and torques during operation. During installation, the annular groove can be used as a positioning reference to ensure accurate alignment of the hoop. When adjusting the fastening bolts, the tightness of the hoop can also be assessed by observing the position of the annular groove, thus achieving more precise fixation.

[0031] As a preferred embodiment of the above, such as Figure 5 As shown, the pad 2 has a wedge-shaped structure. The side of the pad 2 that contacts the tower cylinder 4 is a supporting curved surface 21. The supporting curved surface 21 has a recessed mating plane 22 on its opposite side that mates with the hoop 1. The width of the mating plane 22 is greater than the width of the hoop 1.

[0032] Specifically, the curved support surface 21, which is in direct contact with the tower 4, better conforms to the conical or arc-shaped surface of the tower. This conformity not only reduces stress concentration on the contact area but also increases friction on the contact surface, thereby improving the connection stability between the pad and the tower. The wedge-shaped pad 2 can naturally adapt to the curvature changes of the tower surface. Whether it is a straight or conical tower, stable support can be achieved by adjusting the position and angle of the pad, enhancing the adaptability of the device to different tower shapes. At the same time, the design of the plane 22 allows the pad 2 to be placed firmly on the hoop 1, and the concave shape forms a tight fit with the hoop, which helps to evenly transfer the force on the pad to the hoop, reducing the possibility of stress concentration and deformation, thereby optimizing the force transmission path. The width of the plane 22 is greater than the width of the hoop 1, providing sufficient space and flexibility for the installation and adjustment process. It is easier to place the pad on the hoop, and the best support effect can be achieved by fine-tuning the position and angle of the pad, simplifying the installation process and reducing the difficulty of operation.

[0033] As a preferred embodiment of the above, such as Figure 5 As shown, the pad 2 is disposed between the tower 4 and the hoop 1. After the pad 2 and the hoop 1 are engaged, they are fixed together at the top position of the tower 4 and directly contact the tower 4.

[0034] Specifically, the spacer block 2 acts as a buffer layer between the hoop 1 and the tower 4, directly bearing the pressure generated during hoop tightening and enhancing the connection stability between the hoop 1 and the tower 4. The supporting curved surface of the spacer block 2 can better conform to the conical or arc-shaped surface of the tower, providing a larger contact area and stronger friction, thereby preventing the hoop from slipping or loosening during operation. When the hoop 1 is fixed to the tower with fastening bolts, a certain amount of stress is generated. The spacer block 2, as a stress transfer medium, can disperse this stress over a larger contact area, reducing stress concentration. This helps reduce the risk of damage to the tower and hoop due to excessive stress. Since the diameter and shape of the tower may vary depending on different models or manufacturers, the addition of the spacer block 2 improves the adaptability of the device to different towers. By adjusting the number, position, and angle of the spacers, a tight fit and stable connection between the hoop and the tower can be ensured. The spacer block 2 makes the installation process simpler and faster. The operator only needs to place the spacer block on top of the tower, then put the hoop 1 on the spacer block and tighten the bolts. Furthermore, the pads can be easily disassembled and replaced when maintenance or replacement is required, reducing maintenance costs and time.

[0035] As a preferred embodiment of the above, such as Figure 5 As shown, the pad 2 is made of flexible material.

[0036] Specifically, by using flexible materials to make the pad 2, it is possible to effectively prevent the hoop ring from directly crushing or scratching the surface of the tower, thus protecting the integrity and aesthetics of the tower.

[0037] As a preferred embodiment of the above, such as Figure 5 As shown, at least four pads 2 are provided and are evenly distributed around the circumference of the tower 4. The number of pads 2 increases according to different working conditions, and the number of pads 2 is always kept to be an integer multiple of 2.

[0038] Specifically, by setting at least four pads and evenly distributing them along the four circumferences of the tower, the fixation of the hoop 1 at the top of the tower can be more secure. This even distribution can balance the pressure of the hoop on the tower, preventing displacement or loosening caused by uneven pressure. Keeping the number of pads an integer multiple of two helps to standardize operations during installation and maintenance. The even distribution of the pads 2 along the circumference of the tower can ensure that the pressure of the hoop on the tower is evenly distributed, avoiding local stress concentration and extending the service life of the tower and the equipment.

[0039] As a preferred embodiment of the above, such as Figure 5 As shown, the slider 3 is installed in the annular groove 11 of the hoop 1. The side of the slider 3 is H-shaped. The upper and lower parts of the slider 3 are provided with transverse grooves 32 that cooperate with the edge of the annular groove 11 and slide back and forth along the annular groove 11 to adjust to an appropriate position.

[0040] Specifically, the close fit between the slider 3 and the annular groove 11 ensures its stability during the adjustment process. The H-shaped side design and the upper and lower transverse grooves 32 enable the slider to maintain contact with the edge of the annular groove when sliding, preventing deviation or shaking during the sliding process, thereby improving the safety and stability of the entire device.

[0041] As a preferred embodiment of the above, such as Figure 5 As shown, each of the annular grooves 11 contains two sliders 3.

[0042] Specifically, by setting two sliders 3 in each annular groove 11, more support points are added between the hoop 1 and the suspension point of the hoisting rope, which can more effectively distribute and bear the force and torque generated during the operation, thereby enhancing the structural strength of the entire device and improving its load-bearing capacity and stability. By fine-tuning between the two sliders 3, the position of the suspension point of the hoisting rope can be controlled more precisely, making the device more flexible and accurate when adapting to different tower diameters and shapes, which helps to achieve more precise hoisting operations.

[0043] As a preferred embodiment of the above, such as Figure 3 As shown, a threaded through hole 31 is opened in the center of the slider 3, and the threaded through hole 31 is installed on the corresponding working rope 5 suspension component.

[0044] Specifically, the design of the threaded through hole 31 allows the suspension component of the working rope 5 to be directly installed on the slider 3 via a threaded connection, which is simple, quick, and the connection is firm and reliable, reducing the complexity of the installation process and the need for additional fixing measures.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A suspension device for working ropes on wind turbine towers, characterized in that: Includes a hoop (1), a pad (2), and a slider (3); The hoop (1) is engaged with the pad (2) and then snapped onto the tower (4); the slider (3) is installed on the hoop (1) and slides along the arc of the surface of the hoop (1); The hoop (1) is a split ring structure. The hoop (1) has a mating edge (13) at the joint. The mating edge (13) has bolt holes. The bolt holes are evenly distributed on the mating edge (13). The hoop (1) is locked and fixed to the top of the tower (4) by fastening bolts (12).

2. The wind turbine tower operation hoisting rope suspension device according to claim 1, characterized in that, The hoop (1) has an annular groove (11) symmetrically opened along its center line, and the annular groove (11) is located in the middle of the hoop (1).

3. The wind turbine tower operation hoisting rope suspension device according to claim 2, characterized in that, The pad (2) has a wedge-shaped structure. The side of the pad (2) that contacts the tower (4) is a support surface (21). The support surface (21) has a recessed mating plane (22) on the opposite side and it mates with the hoop (1). The width of the mating plane (22) is greater than the width of the hoop (1).

4. The wind turbine tower operation rope suspension device according to claim 3, characterized in that, The pad (2) is placed between the tower (4) and the hoop (1). After the pad (2) and the hoop (1) are engaged, they are fixed together at the top of the tower (4) and directly contact the tower (4).

5. The wind turbine tower operation hoisting rope suspension device according to claim 1, characterized in that, The pad (2) is made of flexible material.

6. The wind turbine tower operation hoisting rope suspension device according to claim 1, characterized in that, At least four pads (2) are provided and are evenly distributed around the circumference of the tower (4). The number of pads (2) increases according to different working conditions, and the number of pads (2) is always kept to be an integer multiple of 2.

7. The wind turbine tower operation hoisting rope suspension device according to claim 2, characterized in that, The slider (3) is installed in the annular groove (11) of the hoop (1). The side of the slider (3) is H-shaped. The upper and lower parts of the slider (3) are provided with transverse grooves (32) that cooperate with the edge of the annular groove (11) and slide back and forth along the annular groove (11) to adjust to an appropriate position.

8. The wind turbine tower operation rope suspension device according to claim 7, characterized in that, Each of the annular grooves (11) contains two of the sliders (3).

9. The wind turbine tower operation hoisting rope suspension device according to claim 8, characterized in that, The slider (3) has a threaded through hole (31) in the center, and the threaded through hole (31) is used to install the corresponding working rope (5) suspension component.

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