Tower hoisting tooling

Abstract

The utility model provides a tower drum hoisting frock tower drum hoisting frock includes adapter and sling, the adapter is used for inserting in the radial through -hole on the tower drum wall, the upper end of sling can be connected with hoisting equipment, the lower end of sling can pass adapter to tower drum exerts the upward force to hoist tower drum.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation, specifically to a tower hoisting tool. Background Technology

[0002] In the field of wind turbine tower installation, traditional methods typically place the lifting points at the top of the tower. With this setup, the slings are inclined to the lifting points on the top surface of the tower, causing the top of the tower to bear significant lateral forces. Because this lateral force is concentrated at the lifting points, the tower is highly susceptible to deformation or even damage in the vicinity of these points during the continuous application of force during installation. This not only affects the structural integrity of the tower and reduces its load-bearing capacity but may also pose a potential threat to the stability and safety of the entire wind turbine generator set. Utility Model Content

[0003] This utility model provides a tower hoisting fixture that includes a pin that can be set on the side wall of the tower to effectively prevent tower wall deformation.

[0004] According to an embodiment of the present invention, a tower hoisting fixture is provided. The tower hoisting fixture is used to hoist a tower. The tower hoisting fixture includes an adapter and a sling. The adapter is used to be inserted into a radial through hole on the tower wall. The upper end of the sling can be connected to a hoisting device. The lower end of the sling can apply an upward force to the tower through the adapter to lift the tower.

[0005] The adapter is a pin, and the sling includes a first sling and a second sling, the lower ends of which can be hooked onto the two ends of the pin, respectively.

[0006] The pin includes a pin body, a first limiting protrusion disposed at a first end of the pin body, and a second limiting protrusion detachably mounted to a second end of the pin body. The first limiting protrusion and the second limiting protrusion are capable of restricting the first sling and the second sling onto the pin body.

[0007] The pin also includes a sling limiting ring, which can be detachably mounted on the first limiting protrusion to connect the lower end of the first sling to the first end of the pin.

[0008] The first limiting protrusion has at least one fixing hole, and the sling limiting ring is a steel wire rope. The steel wire rope can be arranged around the lower end of the first sling and pass through the fixing hole to be connected to the pin.

[0009] The pin also includes a pull ring disposed at the second end of the pin body.

[0010] The pull ring is misaligned with the second limiting protrusion, or the pull ring is detachably connected to the pin body and, when the pull ring is detached from the pin body, the second limiting protrusion can be detachably connected to the second end of the pin body.

[0011] The tower hoisting fixture also includes a pin support component, which includes a pin support plate and a fixing plate. The pin support plate can be inserted into the radial through hole on the tower and is arranged in a horizontal direction to support the pin. The fixing plate extends downward from the pin support plate and is used to fix it to the tower wall.

[0012] A plurality of radial through holes are formed on the tower, the plurality of radial through holes being located at the same height of the tower and symmetrically arranged along the circumferential direction of the tower, the radial through holes being located at the upper or lower part of the tower.

[0013] The tower hoisting fixture includes a hoisting bracket for connecting to hoisting equipment, and the upper end of the sling can be connected to the hoisting bracket.

[0014] The hoisting bracket has a first sling connection and a second sling connection, the upper end of the first sling is connected to the first sling connection, and the upper end of the second sling is connected to the second sling connection.

[0015] The hoisting support includes a hoisting beam and a sling installation fixture. The sling installation fixture includes a connecting plate and a balance frame rotatably mounted on the lower end of the connecting plate. The first sling connection and the second sling connection are respectively located on both sides of the balance frame. The upper end of the connecting plate is mounted on the hoisting beam.

[0016] The upper end of the first sling is rotatably connected to the first sling connecting part, and the upper end of the second sling is rotatably connected to the second sling connecting part.

[0017] The sling installation fixture is provided with at least two legs for supporting the sling installation fixture on the platform surface.

[0018] The lifting beam is provided with multiple lifting points, and the lifting strap installation fixture can be selectively connected to one of the multiple lifting points.

[0019] The lifting beam has multiple arms, and the lifting sling installation fixtures are multiple and are respectively set on each arm. The number of the first lifting sling and the second lifting sling are set accordingly with the number of the lifting fixtures.

[0020] The lifting beam is a cross beam with four arms. The first and second lifting straps are configured as four sets, which are respectively connected to the lifting strap installation fixtures on the corresponding arms.

[0021] The tower hoisting fixture includes four sling limiting assemblies. Each of the four sling limiting assemblies includes: a mounting part that can be detachably mounted to the tower wall of the tower; and a limiting part that extends laterally from the mounting part and forms a first limiting hole and a second limiting hole, wherein the first sling and the second sling can extend downward through the first limiting hole and the second limiting hole, respectively.

[0022] The limiting part can be placed at the upper end of the tower, the mounting part is a positioning leg extending downward from the limiting part, and the sling limiting assembly is fixedly connected to the tower wall through the positioning leg.

[0023] According to an embodiment of this utility model, by setting the tower lifting point on the side wall of the tower, the influence of the lateral force of the lifting sling on the tower can be greatly reduced, thus avoiding tower deformation. Attached Figure Description

[0024] The above and / or other objects and advantages of this utility model will become more apparent from the following description of embodiments in conjunction with the accompanying drawings, wherein:

[0025] Figure 1 This is a schematic diagram of the pin and tower according to an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the pin body according to an embodiment of the present invention, after being inserted into the radial through hole, and combined with the second limiting protrusion.

[0027] Figure 3 This is a schematic diagram of the pin connection on the sling according to an embodiment of the present invention;

[0028] Figure 4 This is an exploded view of the pin body and pull ring according to an embodiment of the present utility model;

[0029] Figure 5 This is a schematic diagram of the pin support component installed on the tower according to an embodiment of the present invention;

[0030] Figure 6 This is a structural schematic diagram of a hoisting bracket according to an embodiment of the present utility model;

[0031] Figure 7 This is a schematic diagram of the connection structure between the sling installation fixture and the lifting beam according to this utility model;

[0032] Figure 8 This is a schematic diagram of the sling limiting assembly installed on the tower according to an embodiment of the present invention.

[0033] Tag name

[0034] 10-Lifting bracket; 100-Sling limiting assembly; 110-Mounting part; 120-Limiting part; 121-First limiting part; 122-Second limiting part; 131-First limiting hole; 132-Second limiting hole; 200-Sling; 210-First sling; 220-Second sling; 300-Pin; 310-Pin body; 320-First limiting protrusion; 321-Fixing hole; 330-Second limiting protrusion; 340-Sling limiting ring; 350-Pull ring. 400-Pin support component, 410-Pin support plate, 420-Fixing plate, 60-Sling installation fixture, 61-Connecting plate, 610-First sling connection, 62-Balance frame, 620-Second sling connection, 63-Outrigger, 70-Tower, 71-Radial through hole, 73-Inner wall, 80-Lifting beam, 810-Lifting point. Detailed Implementation

[0035] Exemplary embodiments of the present invention will now be described more fully with reference to the accompanying drawings. However, it should not be construed that the embodiments of the present invention are limited to those described herein. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0036] The tower hoisting fixture according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0037] Reference Figures 1 to 5 According to an embodiment of the present invention, a tower hoisting fixture is used to hoist a tower 70. The tower hoisting fixture may include an adapter and a sling 200. The adapter can be inserted into a radial through hole 71 on the tower wall. The upper end of the sling 200 can be connected to a hoisting device, and the lower end of the sling 200 can apply an upward force to the tower 70 through the adapter. For example, the lower end of the sling 200 can be connected to the adapter. By applying an upward pulling force to the adapter, the tower 70 can be hoisted.

[0038] According to an embodiment of this application, by providing radial through holes on the tower wall and using an adapter inserted into the radial through holes to apply an upward force to the tower, it is not necessary to provide a lifting point at the top of the tower, thus avoiding damage to the lifting point area at the top of the tower due to excessive force.

[0039] Furthermore, compared to having the lifting point at the top of the tower, by inserting the adapter through the radial through hole and then lifting it with slings, the possibility of swaying and tilting of the tower during the lifting process can be reduced. The tower can maintain a better posture during lifting, which can reduce the impact of unstable factors on the lifting operation, improve the lifting accuracy and efficiency, help to complete the installation work smoothly, and reduce the construction difficulty and safety risks.

[0040] The lifting straps 200 may include a first lifting strap 210 and a second lifting strap 220, respectively disposed on the inner and outer sides of the tower wall, and connected to both ends of an adapter. As an example, the adapter may be a flexible connector, with both ends capable of connecting to the first lifting strap 210 and the second lifting strap 220, respectively. As another example, the adapter may be a pin 300, which, after being inserted into the radial through-hole 71 in the tower wall, extends outwards relative to the tower wall at both ends, with the lower ends of the first lifting strap 210 and the second lifting strap 220 respectively hooked onto the two ends of the pin 300. In this way, the first lifting strap 210 and the second lifting strap 220 can be hooked onto the pin 300 on the inner and outer sides of the tower, respectively, to reduce stress concentration at corresponding locations on the tower.

[0041] The adapter of this application is described below using pin 300 as an example, but those skilled in the art should understand that the adapter is not limited to the structure of pin 300, and can be any other adapter structure that can connect the first sling and the second sling at the location of the radial through hole 71.

[0042] like Figure 1 and Figure 2 As shown, the pin 300 according to this embodiment may include a pin body 310, a first limiting protrusion 320 disposed at a first end of the pin body 310, and a second limiting protrusion 330 detachably mounted to a second end of the pin body 310.

[0043] The pin body 310 can pass through the radial through hole 71. The first limiting protrusion 320 and the second limiting protrusion 330 protrude outward in the radial direction relative to the pin body 310, and their outer diameters are larger than the inner diameters of the radial through hole 71. After the pin 300 is installed in the radial through hole 71, the first sling 210 and the second sling 220 can be hooked onto the pin body 310 in the space between the first limiting protrusion 320 and the second limiting protrusion 330 and the tower wall, respectively, without slipping off.

[0044] like Figure 1 and Figure 2 As shown, the first limiting protrusion 320 and the second limiting protrusion 330 may have a circular plate shape, and their diameter is larger than the diameter of the pin body 310. However, the shape of the first limiting protrusion 320 and the second limiting protrusion 330 is not limited to this. For example, the first limiting protrusion 320 and the second limiting protrusion 330 may have regular or other irregular plate shapes such as rectangles or ovals, as long as they can prevent the sling 200 from slipping laterally during hoisting.

[0045] According to an embodiment of the present invention, when the radial through hole 71 is positioned relatively high above the ground, it is difficult for hoisting workers to directly place the pin 300 at the position corresponding to the radial through hole 71. According to an embodiment of the present invention, the pin 300 can be connected to the lower end of the first lifting strap 210, and the pin 300 can be transported to the position corresponding to the radial through hole 71 by means of the first lifting strap 210.

[0046] Therefore, as Figure 3 As shown, the pin 300 according to an embodiment of the present invention may further include a sling limiting ring 340, which can be installed on the first limiting protrusion 320. When the lower end of the first sling 210 is sleeved on the first end of the pin 300, the first sling 210 is limited to the first end of the pin 300. Here, during the process of lowering the pin 300 using the first sling 210, the pin 300 sleeved on the lower end of the first sling 210 actually only includes the pin body 310 and the first limiting protrusion 320, while the second limiting protrusion 330 is in a disassembled state to facilitate the insertion of the pin 300 into the radial through hole 71 and then connecting it to the second limiting protrusion 330.

[0047] According to an embodiment, at least one fixing hole 321 may be formed on the first limiting protrusion 320, and the sling limiting ring 340 may be a steel wire rope, which can pass through the fixing hole 321 and connect to the pin 300. When the lower end of the first sling 210 is sleeved on the first end of the pin 300, the steel wire rope can pass through the fixing hole 321 formed on the first limiting protrusion 320 and surround the first sling 210 from the outside to prevent it from detaching from the pin 300. In this way, it can be ensured that the pin 300 will not fall off when the first sling 210 is used to transport the pin 300. In the embodiments of this application, for the convenience of hooking with the pin 300, both the first sling 210 and the second sling 220 are configured as loops. When the first sling 210 is in a slack state, the lower end of the first sling 210 can be threaded from the second end of the pin 300 onto the pin 300, and then the first sling 210 can be pulled to the first end of the pin 300 and constrained to the first end of the pin by the sling limiting ring 340.

[0048] Furthermore, after connecting the first sling 210 and the pin 300 using the sling limit ring 340, the sling limit ring 340 does not need to be removed before the tower hoisting is completed. In this case, such as Figure 3As shown, when the sling limiting ring 340 connects the first sling 210 to the pin 300, it avoids the position that the first sling 210 will occupy during the hoisting process, ensuring that the first sling 210 and the pin 300 are in a roughly vertical state during hoisting. However, this utility model is not limited to this; the sling limiting ring 340 can also be made of a flexible material rope. In this case, as long as it can prevent the pin 300 from falling off the first sling 210, the state of the first sling 210 and the pin 300 during hoisting can be disregarded.

[0049] Furthermore, the tower construction platform is usually located inside the tower. When hoisting workers insert the pin 300 into the radial through hole 71 from one side of the tower wall, it is difficult to operate from the other side of the tower wall. Therefore, both the installation of the pin 300 and the connection between the pin and the hoisting strap 200 present certain difficulties.

[0050] Therefore, the pin 300 according to an embodiment of the present invention may further include a pull ring 350 disposed at the second end of the pin body 310. The pull ring 350 functions as follows: after the pin 300 is moved to a predetermined position outside the tower wall by the first lifting strap 210, a worker on the mounting platform (not shown) located inside the tower 70 can use a hook (not shown) or other hooking component to hook the pull ring 350 through the radial through hole 71, so as to smoothly pull the pin body 310 of the pin 300 into the radial through hole 71. The pull ring 350 may have the following characteristics: Figure 5 The pull ring 350 is shaped as shown in the figure, and its two ends can be connected to the second end of the pin body 310 by fastening members (e.g., screws). However, the shape of the pull ring 350 is not limited to this, as long as it can be pulled by a hook and is helpful for inserting the pin body 310 into the radial through hole 71.

[0051] As described above, the second limiting protrusion 330 is detachably connected to the second end of the pin body 310. Therefore, after the pin body 310 is inserted into the radial through hole 71 via the pull ring 350, the pull ring 350 can be removed, and the second limiting protrusion 330 can be installed to the second end of the pin body 310. However, the present invention is not limited to this. The second limiting protrusion 330 may have a groove or hole that avoids the pull ring 350 from passing through, so that the second limiting protrusion 330 can be installed to the second end of the pin body 310 without removing the pull ring 350. That is, the second limiting protrusion 330 and the pull ring 350 may be misaligned, so that both are installed at the second end of the pin body 310.

[0052] like Figure 5As shown, the tower hoisting fixture according to an embodiment of the present invention further includes a pin support 400, which may include a pin support plate 410 and a fixing plate 420. The pin support plate 410 is insertable into a radial through hole 71 on the tower and is arranged horizontally to support the pin 300 during installation. The fixing plate 420 is connected to the end of the pin support plate 410, for example, extending downward from the pin support plate 410, for fixing to the tower wall. The pin support 400 may be made of high-strength alloy steel, thus having excellent load-bearing capacity and resistance to deformation. By providing support for the pin 300 through the pin support 400, the pin 300 remains horizontal during connection with the sling 200, preventing the pin 300 from tilting.

[0053] As described above, the tower installation platform is typically located inside the tower 70, where workers perform construction. Therefore, the fixing plate 420 can be fixed to the inner wall 73 of the tower 70, and the pin support plate 410 can extend from the inside of the tower 70 through the radial through hole 71 to the outside. To better support the pin 300, the width of the outer end of the pin support plate 410 is preferably greater than the width of the radial through hole 71. In this case, the height of the radial through hole 71 can be greater than the width of the pin support plate 410. When installing the pin support 400, the pin support plate 410 can be erected and extended from the inner wall of the tower 70 through the radial through hole 71 to the outside. Then, the pin support 400 can be rotated to move the fixing plate 420 to the predetermined installation position and keep it horizontal.

[0054] According to an embodiment of the present invention, in order to install the pin support 400 to the tower 70, a threaded sleeve can be pre-embedded at a corresponding position on the inner wall of the tower 70, so that the fixing plate 420 can be detachably installed to the tower 70 by fastening components (e.g., screws).

[0055] According to an embodiment of this utility model, a plurality of radial through holes 71 are formed on the tower 70. These radial through holes 71 are located at the same height on the tower 70 and can be evenly arranged along the circumferential direction of the tower 70. In this case, when a plurality of pins 300 are inserted into the tower 70, the force exerted on the pins 300 by the lifting straps can be more evenly distributed around the circumference of the tower 70, avoiding localized stress concentration. Furthermore, the evenly distributed plurality of pins 300, serving as lifting point connectors penetrating the tower wall, can provide multiple reliable connection points for lifting, enhancing the stability of the tower during lifting and reducing the risk of swaying and tilting.

[0056] The following reference Figure 6 and Figure 7 The tower hoisting fixture according to an embodiment of the present invention is further described.

[0057] like Figure 6 and Figure 7 As shown, the tower hoisting fixture according to an embodiment of the present invention further includes a hoisting bracket 10, which is used to connect with a hoisting device (not shown), and the upper end of the sling 200 can be connected to the hoisting bracket 10.

[0058] According to the embodiment, the hoisting bracket 10 may have a first sling connection 610 and a second sling connection 620. The upper end of the first sling 210 may be connected to the first sling connection 610, and the upper end of the second sling 220 may be connected to the second sling connection 620.

[0059] Specifically, the lifting support 10 may include a lifting beam 80 and a sling installation fixture 60. The sling installation fixture 60 may include a connecting plate 61 and a balance frame 62 rotatably mounted on the lower end of the connecting plate 61. The first sling connection portion 610 and the second sling connection portion 620 may be respectively disposed on both sides of the balance frame 62. The sling installation fixture 60 can be connected to the lifting beam 80 by mounting the upper end of the connecting plate 61 onto the lifting beam 80. Normally, the lengths of the first sling 210 and the second sling 220 are difficult to guarantee to be exactly the same, therefore, the forces on the first sling 210 and the second sling 220 may be unbalanced. According to the embodiments of this application, the middle part of the balance frame 62 is rotatably connected to the lower end of the connecting plate 61, which can automatically adjust the tension distribution of the first sling 210 and the second sling 220 to a certain extent, so that the sling 200 can maintain a balanced force state.

[0060] In addition, in order to ensure that the first sling 210 and the second sling 220 are only subjected to force in the vertical direction and to avoid the existence of horizontal component force as much as possible, the upper end of the first sling 210 is rotatably connected to the first sling connection part 610, and the upper end of the second sling 220 is rotatably connected to the second sling connection part 620.

[0061] like Figure 7 As shown, the connecting plate 61 may include two parallel strip plates, the upper end of which can be mounted to a lifting hole on the lifting beam 80 via a connecting member such as a pin (not shown), and the lower end of which is connected to the balance frame 62. The balance frame 62 may have the shape of an isosceles triangle with rounded corners, one corner of the balance frame 62 is rotatably connected to the lower end of the connecting plate 61, and the other two corners of the balance frame 62 are respectively provided with a first sling connection portion 610 and a second sling connection portion 620.

[0062] In addition, such as Figure 7As shown, both the first sling connection 610 and the second sling connection 620 may include a rotating pin with an anti-detachment device and a U-shaped connector. The rotating pin with the anti-detachment device passes through the balance frame 62 and is arranged in a direction perpendicular to the side surface of the balance frame 62. The two ends of the U-shaped connector are rotatably connected to the two ends of the rotating pin, respectively. The first sling 210 and the second sling 220 may bypass the space formed by the U-shaped connector. Since the U-shaped connector can rotate relative to the rotating pin, the first sling 210 and the second sling 220 are rotatably connected to the balance frame 62, ensuring that the upper end of the sling 200 can be firmly connected and rotate flexibly within a certain range to adapt to the transmission of lifting force at different angles. In addition, the first sling 210 and the second sling 220 may each be annular slings, with the upper end wrapped around the U-shaped connector and the lower end wrapped around the pin 300. By setting the annular slings, the force on a single sling can be reduced.

[0063] The sling installation fixture 60 can be detachably connected to the lifting beam 80, allowing the sling installation fixture 60 to be separated from the lifting beam 80 for easy transport or storage in a disassembled state, reducing its size and space occupation. The sling installation fixture 60 is equipped with at least two outriggers 63, which allow it to be placed upright during transport, preventing damage to the anti-corrosion coating from impacts. The outriggers 63 can be fixed to the connecting plate 61.

[0064] In addition, refer to Figure 7 The lifting beam 80 can be equipped with multiple lifting points 810. The lifting sling installation fixture 60 can be selectively connected to one of these lifting points to accommodate the size of the tower being lifted. Here, "accommodating the size of the tower being lifted" does not mean that the diameter of the virtual circle formed by the connected lifting points is exactly the same as the diameter of the tower at the location of the radial through hole 71. Rather, the appropriate lifting point 810 can be selected based on a comprehensive consideration of the tower's size and center of gravity. For example, the virtual circle formed by the appropriate lifting point 810 may be smaller than the diameter of the tower at the location of the radial through hole 71. In this case, due to the lifting sling limiting component 100, even if the diameter of the virtual circle where the lifting point is located differs from the diameter at the location of the radial through hole 71, friction between the lifting sling and the tower wall can be prevented, ensuring balance during the lifting process.

[0065] In addition, such as Figure 6 As shown, the lifting beam 80 has multiple arms, and there are multiple lifting slings and installation fixtures 60, which are respectively set on each arm. The first lifting sling 210 and the second lifting sling 220 are in multiple sets and are set with each arm and the lifting installation fixtures accordingly.

[0066] Preferably, the lifting beam 80 is a cross beam with four arms. Accordingly, during tower hoisting, four lifting sling installation fixtures 60 are installed, and the first lifting sling 210 and the second lifting sling 220 are configured as four sets, each connected to the lifting sling installation fixture 60 on the corresponding arm. In this case, four radial through holes 71 for installing the pins 300 can be provided along the tower direction.

[0067] According to the embodiment, the radial through hole 71 (or pin 300) can be located at a position slightly below the center of the multiple tower sections in the vertical direction. In this case, the tower hoisting operation can be carried out by lifting multiple tower sections using a bottom-support method. For example, the radial through hole 71 can be formed on the lowest tower section. In this way, it is not necessary to use a strong pre-tightening force to pre-tighten the multiple tower sections in the vertical direction. In addition, although the center of gravity of the hoisting is lowered, the lateral support of the first lifting strap 210 and the second lifting strap 220 can prevent problems such as tower tilting.

[0068] Reference Figure 8 The tower hoisting fixture according to this utility model may further include sling limiting components. Accordingly, it may include four sling limiting components 100. Each of the four sling limiting components 100 includes: a mounting part 110, which can be detachably mounted to the tower wall; and a limiting part 120, which extends laterally from the mounting part 110 and forms a first limiting hole 131 and a second limiting hole 132. The first sling 210 and the second sling 220 can respectively pass through the first limiting hole 131 and the second limiting hole 132 and extend downward to connect to both ends of the pin 300. The first limiting hole 131 and the second limiting hole 132 can respectively space the first sling 210 and the second sling 220 from the tower wall by a predetermined distance to prevent interference with the tower wall.

[0069] In the embodiments of this application, the tower includes multiple interconnected sections, and the tower lifting point is located at a lower part of the tower, for example, on the lowest section, with a certain distance between the lifting point and the upper end of the tower. The sling limiting assembly 100 can be located at the upper part of the tower, with the first limiting hole 131 and the second limiting hole 132 located on both sides of the tower wall, respectively, to separate the sling 200 from the tower wall, effectively limiting the lateral swing of the sling and ensuring that the sling always remains in the predetermined position, avoiding frictional damage due to contact with the tower wall or other components. Furthermore, the sling limiting assembly 100 also enables the sling 200 to be accurately lowered to the desired position.

[0070] According to a preferred embodiment of the present invention, the limiting part 120 may be disposed at the upper end of the tower 70, and the mounting part 110 may include positioning legs extending downward from the limiting part 120. The sling limiting assembly 100 is fixedly connected to the tower wall through the positioning legs. For example, the mounting part 110 may include two positioning legs extending downward from both sides of the limiting part 120, the two positioning legs being horizontally spaced apart from each other to provide stable support for the sling limiting assembly 100. The two positioning legs may be installed on the same side of the tower wall of the tower 70, for example, the positioning legs may be installed on the inner wall 73 of the tower 70, so as to facilitate the installation of the sling limiting assembly 100 by workers on the working platform inside the tower.

[0071] The structure of the limiting part 120 and the mounting part 110 is not limited to Figure 8 In the scenario shown, the limiting part 120 only needs to be configured such that the first limiting hole 131 and the second limiting hole 132 through which the sling passes are spaced a certain distance from the tower wall, and the mounting part 110 only needs to be able to mount the limiting part 120 onto the tower 70. For example, the shape of the limiting part 120 is not limited to... Figure 8 The frame shape shown can be any other shape including the first limiting hole 131 and the second limiting hole 132 mentioned above. For example, the mounting part 110 can be located in the area between the first limiting part 121 and the second limiting part 122 in a direction perpendicular to the tower wall, and the mounting part 110 can be attached to the tower 70 from the top of the tower 70.

[0072] Furthermore, the dimensions of the first limiting hole 131 and the second limiting hole 132 can be set according to the size of the sling, as long as it ensures that the sling 200 can pass through smoothly. Additionally, protective sleeves can be installed at the points where the sling passes through the first limiting hole 131 and the second limiting hole 132 to reduce friction between the sling 200 and the edges of the limiting holes. The sling 200 can be made of high-strength, wear-resistant, and flexible materials, such as specially made polyester fiber slings, whose surface can be treated to enhance wear resistance; or high-strength and corrosion-resistant steel wire rope can be used.

[0073] According to the embodiment, since the pin 300 is transported to the radial through hole 71 by a sling (specifically, the first sling 210), if the size of the first limiting hole 131 allows the pin 300 to pass through, the pin 300 can first be installed at the lower end of the first sling 210, and then both the pin 300 and the first sling 210 extend downward through the first limiting hole 131 to the position of the radial through hole 71. If the size of the first limiting hole 131 only allows the first sling 210 to pass through, but not the pin 300, the first sling 210 can first be extended through the first limiting hole 131 to a position close to the ground, and the worker can install the pin 300 onto the first sling 210 on the ground, and then lift the pin 300 upward to the position of the radial through hole 71. Of course, if the radial through hole 71 is close to the ground, the worker can also directly hold the pin 300 and insert it into the radial through hole 71. In this case, the above-mentioned sling limit ring 340 and pull ring 350 and other structures can be omitted.

[0074] The tower hoisting fixture of this utility model can be used to complete the tower hoisting in the following steps: First, the appropriate lower lifting point can be rotated according to the diameter of the tower, and the sling installation fixture 60 is installed at the corresponding lower lifting point; then, the sling limiting component can be installed at the corresponding position on the tower wall according to the position of the radial through hole 71 to provide initial limiting and guidance for the sling 200; after the sling 200 passes through the sling limiting component 100, it is connected to the pin 300 on the first sling 210, and with the assistance of the sling limiting ring 340, the pin 300 is stably suspended on the first sling 210; then the pin 300 is installed in the radial through hole 71 and kept horizontal by the pin support 400; the second sling 220 is hooked at the second end of the pin 300; then the lifting equipment lifts the hoisting beam 80 to realize the hoisting of multiple tower sections.

[0075] The embodiments of this utility model are not limited to this. If the lifting point on the tower is relatively high, for example, if the tower lifting point is set on the uppermost tower section, the lifting strap limiting component 100 can be omitted, and the step of installing the lifting strap limiting component can be omitted accordingly during hoisting.

[0076] Furthermore, the tower hoisting method is not limited to the above steps; the hoisting steps can be adjusted or changed according to actual needs. For example, the limiting component 100 can be hoisted first, and then the position of the lower hoisting point can be selected to install the hoisting installation fixture 60.

[0077] According to an embodiment of this utility model, by setting the tower lifting point on the side wall of the tower, the influence of the lateral force of the lifting sling on the tower can be greatly reduced, thus avoiding tower deformation.

[0078] According to the embodiments of this utility model, by setting the sling limiting component, precise hoisting positioning can be achieved, ensuring uniform force on each hoisting point, and enabling safe and efficient hoisting of multiple tower sections. In particular, when the pin is installed in the lower center position, the stability of the sling and the safety of hoisting can be ensured.

[0079] The features, structures, or characteristics described in this invention can be combined in any suitable manner in one or more embodiments. In the above description, numerous specific details are provided to give a full understanding of embodiments of this invention. However, those skilled in the art will recognize that the technical solutions of this invention can be practiced without one or more of the specific details described, or other methods, components, materials, etc., can be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring various aspects of this invention.

Claims

1. A tower hoisting fixture for hoisting a tower (70), characterized in that, The tower hoisting fixture includes an adapter and a sling (200). The adapter is used to insert into a radial through hole (71) on the tower wall. The upper end of the sling (200) can be connected to the hoisting equipment. The lower end of the sling (200) can apply an upward force to the tower (70) through the adapter to lift the tower (70).

2. The tower hoisting fixture according to claim 1, characterized in that, The adapter is a pin (300), and the sling (200) includes a first sling (210) and a second sling (220). The lower ends of the first sling (210) and the second sling (220) can be hooked to the two ends of the pin (300).

3. The tower hoisting fixture according to claim 2, characterized in that, The pin (300) includes a pin body (310), a first limiting protrusion (320) disposed at a first end of the pin body (310), and a second limiting protrusion (330) detachably mounted to a second end of the pin body (310). The first limiting protrusion (320) and the second limiting protrusion (330) are capable of restricting the first sling (210) and the second sling (220) on the pin body (310).

4. The tower hoisting fixture according to claim 3, characterized in that, The pin (300) also includes a sling limiting ring (340), which can be detachably mounted on the first limiting protrusion (320) for connecting the lower end of the first sling (210) to the first end of the pin (300).

5. The tower hoisting fixture according to claim 4, characterized in that, At least one fixing hole (321) is formed on the first limiting protrusion (320). The sling limiting ring (340) is a steel wire rope. The steel wire rope can be arranged around the lower end of the first sling (210) and pass through the fixing hole (321) to connect with the pin (300).

6. The tower hoisting fixture according to claim 4, characterized in that, The pin (300) also includes a pull ring (350) disposed at the second end of the pin body (310).

7. The tower hoisting fixture according to claim 6, characterized in that, The pull ring (350) is misaligned with the second limiting protrusion (330), or the pull ring (350) is detachably connected to the pin body (310) and the second limiting protrusion (330) can be detachably connected to the second end of the pin body (310) when the pull ring is detached from the pin body (310).

8. The tower hoisting fixture according to claim 1, characterized in that, The tower hoisting fixture also includes a pin support (400), which includes a pin support plate (410) and a fixing plate (420). The pin support plate (410) can be inserted into the radial through hole (71) on the tower and is arranged in a horizontal direction to support the pin (300). The fixing plate (420) extends downward from the pin support plate (410) for fixing to the tower wall.

9. The tower hoisting fixture according to claim 8, characterized in that, A plurality of radial through holes (71) are formed on the tower (70). The plurality of radial through holes (71) are located at the same height of the tower and are symmetrically arranged along the circumferential direction of the tower. The radial through holes (71) are located at the upper or lower part of the tower.

10. The tower hoisting fixture according to any one of claims 1 to 8, characterized in that, The tower hoisting fixture includes a hoisting bracket (10) for connecting to the hoisting equipment, and the upper end of the sling (200) can be connected to the hoisting bracket (10).

11. The tower hoisting fixture according to claim 10, characterized in that, The hoisting bracket (10) has a first sling connection (610) and a second sling connection (620), the upper end of the first sling (210) is connected to the first sling connection (610), and the upper end of the second sling (220) is connected to the second sling connection (620).

12. The tower hoisting fixture according to claim 11, characterized in that, The hoisting bracket (10) includes a hoisting beam (80) and a sling installation fixture (60). The sling installation fixture (60) includes a connecting plate (61) and a balance frame (62) rotatably mounted on the lower end of the connecting plate (61). The first sling connection part (610) and the second sling connection part (620) are respectively disposed on both sides of the balance frame (62). The upper end of the connecting plate (61) is mounted on the hoisting beam (80).

13. The tower hoisting fixture according to claim 12, characterized in that, The upper end of the first sling (210) is rotatably connected to the first sling connection part (610), and the upper end of the second sling (220) is rotatably connected to the second sling connection part (620).

14. The tower hoisting fixture according to claim 13, characterized in that, The sling installation fixture (60) is provided with at least two legs (63) for supporting the sling installation fixture (60) on the platform surface.

15. The tower hoisting fixture according to claim 13, characterized in that, The lifting beam (80) is provided with a plurality of lifting points (810), and the lifting strap installation fixture (60) can be selectively connected to one of the plurality of lifting points.

16. The tower hoisting fixture according to claim 13, characterized in that, The lifting beam has multiple arms, and there are multiple lifting strap installation fixtures (60), which are respectively set on each arm. The number of the first lifting strap (210) and the second lifting strap (220) are set accordingly with the lifting fixtures.

17. The tower hoisting fixture according to claim 16, characterized in that, The lifting beam is a cross beam with four arms. The first sling (210) and the second sling (220) are set into four groups and are respectively connected to the sling installation fixture (60) on the corresponding arms.

18. The tower hoisting fixture according to claim 17, characterized in that, in, The tower hoisting fixture includes four sling limiting assemblies (100), each of the four sling limiting assemblies (100) comprising: The mounting part (110) can be detachably mounted to the tower wall of the tower (70); The limiting part (120) extends laterally from the mounting part (110) and has a first limiting hole (131) and a second limiting hole (132), through which the first sling (210) and the second sling (220) can extend downward respectively.

19. The tower hoisting fixture as described in claim 18, characterized in that, The limiting part (120) can be placed at the upper end of the tower (70), the mounting part (110) is a positioning leg extending downward from the limiting part (120), and the sling limiting assembly (100) is fixedly connected to the tower wall through the positioning leg.

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