Tower drum hoisting tool

Abstract

The utility model provides a tower drum hoisting tool, the tower drum hoisting tool comprises a hoisting beam and a tensioning cable, the hoisting beam comprises four cantilevers which are arranged in a cross shape, and the tensioning cable is connected between every two adjacent cantilevers with preset pre-tightening force. According to the tower drum hoisting tool, the tensioning cables are arranged between the adjacent cantilevers, and the cantilevers are connected on the side surfaces of the cantilevers with the preset pre-tightening force, so that the overall strength of the whole hoisting tool of the hoisting beam can be improved in the side direction, and the overall strength of the hoisting beam can be improved while the weight of the whole tower drum hoisting tool is reduced.

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 installation of wind turbine towers, the towers themselves are typically quite heavy due to their structural characteristics. Traditional tower hoisting equipment is usually designed to be large in size or to enhance its load-bearing capacity by increasing material thickness or using high-strength materials to ensure sufficient load-bearing capacity.

[0003] When the size is large, it will increase the footprint of the tooling and cause great inconvenience in transportation, installation and storage.

[0004] When high-strength materials are used to enhance the load-bearing capacity of the tooling, the weight of the tooling itself will increase significantly, increasing the load on the lifting equipment. This may affect the flexibility and efficiency of the lifting operation to some extent, and make transportation inconvenient.

[0005] Taking cantilever beam lifting equipment as an example, in traditional designs, extremely high stiffness requirements are placed on the cantilever to prevent excessive deformation or even failure during lifting. To achieve this high stiffness standard, the cross-sectional dimensions of the cantilever typically need to be increased, which inevitably leads to a significant increase in the overall weight of the lifting equipment. This not only increases production and transportation costs but also poses serious challenges to the lifting capacity and stability of the lifting equipment during actual lifting operations.

[0006] Therefore, a new type of tower hoisting tool is needed that can effectively solve the size and weight problems of traditional tooling while ensuring hoisting capacity, and improve the economy and feasibility of hoisting operations.

[0007] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this utility model, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0008] This invention provides a tower lifting fixture that can ensure lifting capacity without increasing the overall weight of the lifting equipment.

[0009] According to one aspect of the present invention, a tower hoisting fixture is provided, the tower hoisting fixture including a hoisting beam and tension cables, the hoisting beam including four cantilever arms arranged in a cross shape, and the tension cables being connected between every two adjacent cantilever arms with a predetermined preload.

[0010] The hoisting beam includes a first support beam, a second support beam, and a third support beam. The second and third support beams are detachably connected to the first support beam to form four cantilever arms arranged in a cross shape. The four cantilever arms include a first cantilever arm, a second cantilever arm, a third cantilever arm, and a fourth cantilever arm. The first support beam forms a first cantilever arm and a second cantilever arm that are oppositely arranged and integrally connected. The second and third support beams are arranged oppositely on both sides of the middle part of the first support beam to form a third cantilever arm and a fourth cantilever arm that are oppositely arranged.

[0011] The first support beam includes a main beam and a side beam integrally connected to the main beam. The side beam includes a first side beam and a second side beam that extend laterally from the middle of the first support beam along its length. The second support beam and the third support beam are detachably mounted to the end surfaces of the first side beam and the second side beam, respectively.

[0012] Each of the main beam, the side beam, the second support beam, and the third support beam is an I-beam.

[0013] The second support beam and the first side beam are provided with matching connecting plates at their joint positions, and the area of ​​the connecting plates is larger than the cross-sectional area of ​​the second support beam and the first side beam.

[0014] The connecting plate is a rectangular connecting plate, and multiple reinforcing ribs are provided between the connecting plate and the corresponding supporting beam.

[0015] The hoisting beam further includes a first leg formed on the first support beam, a second leg formed on the second support beam, and a third leg formed on the third support beam. The first leg can support the first support beam, the second leg can support the second support beam, and the third leg can support the third support beam. The first leg, the second leg, and the third leg can jointly support the hoisting beam.

[0016] A lower suspension point area is provided on the lower surface of each cantilever. The lower suspension point area is located at the cantilever end of the cantilever. The lower suspension point area includes multiple lower suspension points, which are arranged at intervals along the length direction of the corresponding cantilever.

[0017] The tower hoisting fixture also includes upper lifting point areas formed on the upper surface of each cantilever, with each upper lifting point area having an upper lifting point, wherein the number of upper lifting points is less than the number of lower lifting points.

[0018] Each of the upper hanging point regions is provided with at least one upper hanging point, and the upper hanging point region is located at a position that overlaps with the position of the corresponding lower hanging point region in the vertical direction.

[0019] The tower hoisting fixture also includes a sling installation fixture and a sling. The sling installation fixture includes a connecting plate and a balance frame rotatably mounted on the lower end of the connecting plate. The upper end of the connecting plate can be detachably connected to the corresponding lower lifting point in the lower lifting point area. The sling is installed to the balance frame.

[0020] The balancing frame includes a first sling connection and a second sling connection, and the first sling connection and the second sling connection are located at both ends of the balancing frame relative to the rotation axis of the balancing frame and the connecting plate. The slings include a first sling and a second sling, and the upper ends of the first sling and the second sling are respectively connected to the first sling connection and the second sling connection.

[0021] The first sling connection includes a first rotating pin and a first sling mounting member rotatably coupled to the first rotating pin. The second sling connection includes a second rotating pin and a second sling mounting member rotatably coupled to the second rotating pin. The first rotating pin and the second rotating pin respectively pass through the balance frame and are arranged parallel to the rotation axis of the balance frame and the connecting plate. The two ends of the first sling mounting member are coupled to the two ends of the first rotating pin, and the two ends of the second sling mounting member are coupled to the two ends of the second rotating pin. The first sling and the second sling are respectively wound around the first sling mounting member and the second sling mounting member.

[0022] The sling installation fixture also includes an auxiliary support leg assembly, which includes a first auxiliary support leg, a second auxiliary support leg, and a support leg connecting rod for mounting the first auxiliary support leg and the second auxiliary support leg to the connecting plate.

[0023] The tower hoisting fixture also includes a pin for insertion into a radial through hole formed on the tower wall. 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 lower ends of the first sling and the second sling can be hooked to the first end and the second end of the pin body, respectively.

[0024] The pin also includes a sling limiting ring, which can be detachably mounted on the first limiting protrusion to limit the first sling to the first end of the pin when the lower end of the first sling is sleeved on the first end of the pin.

[0025] The pin also includes a pull ring detachably disposed at the second end of the pin body.

[0026] The pull ring is misaligned with the second limiting protrusion, or the second limiting protrusion can be detachably connected to the second end of the pin body when the pull ring is detached from the pin body.

[0027] 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.

[0028] 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; 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.

[0029] 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.

[0030] According to an embodiment of the present invention, the hoisting beam includes tension cables connecting adjacent cantilever beams, which can improve the overall strength of the hoisting beam without increasing its weight.

[0031] According to an embodiment of this utility model, by making the lifting beam detachable, the convenience of transportation can be improved.

[0032] 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. Attached Figure Description

[0033] 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:

[0034] Figure 1 This is an exploded view of the lifting beam of the tower hoisting fixture according to this utility model;

[0035] Figure 2 This is a three-dimensional schematic diagram of the tower hoisting fixture according to this utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the sling installation fixture and the lower lifting point of the lifting beam according to this utility model;

[0037] Figure 4 This is a schematic diagram of the pin and tower according to an embodiment of the present utility model;

[0038] Figure 5 This is a schematic diagram of the structure of the pin body after it is inserted into the pin hole and combined with the second limiting protrusion according to an embodiment of the present utility model.

[0039] Figure 6 This is a schematic diagram of the pin connection on the sling according to an embodiment of the present invention;

[0040] Figure 7 This is an exploded view of the pin body and pull ring according to an embodiment of the present utility model;

[0041] Figure 8 This is a schematic diagram of the pin support component installed on the tower according to an embodiment of the present invention;

[0042] Figure 9 This is a schematic diagram of the sling limiting assembly installed on the tower according to an embodiment of the present invention.

[0043] Tag name:

[0044] 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, 15-Tightening cable, 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, 410-Pin support plate, 420-Fixing plate, 60-Sling installation fixture, 61-Connecting plate, 610-First sling connecting part, 610a-First rotating pin, 610b-First sling mounting part, 62-Balance frame, 620-Second sling With connecting parts, 620a-second rotating pin, 620b-second lifting sling mounting part, 63-outrigger assembly, 631-first auxiliary outrigger, 632-second auxiliary outrigger, 633-outrigger connecting rod, 70-tower, 71-radial through hole, 73-inner wall, 80-lifting beam, 801-main beam, 802-side beam, 802a-first side beam, 802b-second side beam, 803-connecting plate, 81-first support beam, 811-first lower lifting point area, 812-second lower lifting point area, 813-third lower lifting point area, 814-fourth lower lifting point area, 815-first outrigger, 82-second support beam, 825-second outrigger, 83-third support beam, 835-third outrigger, 88-upper lifting point area, 881-upper lifting point. Detailed Implementation

[0045] 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.

[0046] The following reference Figures 1 to 7 This invention describes a tower hoisting fixture according to an embodiment of the present invention.

[0047] like Figure 1 and Figure 2 As shown, the tower hoisting fixture according to an embodiment of the present invention may include a hoisting beam 80 and tension cables 15. The hoisting beam 80 includes four cantilever arms arranged in a cross shape, and the tension cables 15 are connected between every two adjacent cantilever arms with a predetermined preload.

[0048] By setting tension cables 15 between adjacent cantilever arms and connecting them on the side surface of the cantilever arms with a predetermined preload, the strength of the entire lifting beam can be increased laterally, thereby reducing the stiffness requirements of each cantilever arm and reducing the weight of the entire tower lifting fixture.

[0049] Preferably, two tension cables can be provided between each group of adjacent cantilever arms. However, this utility model is not limited to this, and only one tension cable can be provided between adjacent cantilever arms, or three or more tension cables 15 can be provided, depending on the actual hoisting requirements.

[0050] The lifting beam 80 includes a first support beam 81, a second support beam 82, and a third support beam 83, forming four cantilever arms arranged in a cross shape. The four cantilever arms include a first cantilever arm, a second cantilever arm, a third cantilever arm, and a fourth cantilever arm. The first support beam 81 forms a first cantilever arm and a second cantilever arm that are arranged opposite to each other and integrally connected. The second support beam 82 and the third support beam 83 are arranged opposite to each other on both sides of the middle part of the first support beam 81, forming a third cantilever arm and a fourth cantilever arm that are arranged opposite to each other. The second support beam 82 and the third support beam 83 are detachably connected to the first support beam 81.

[0051] By detachably connecting the second support beam 82 and the third support beam 83 to the first support beam 81, the problem of inconvenient transportation caused by the large size of the hoist can be avoided.

[0052] like Figure 1As shown, the first support beam 81 may include a main beam 801 and a side beam 802 integrally connected to the main beam 801. The side beam 802 may include a first side beam 802a and a second side beam 802b extending laterally from the middle of the first support beam 81 along its length direction, respectively. The second support beam 82 and the third support beam 83 are detachably mounted to the end surfaces of the first side beam 802a and the second side beam 802b, respectively.

[0053] According to embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the main beam 801, side beam 802, second support beam 82, and third support beam 83 can all be I-beams, thereby reducing the weight of the entire lifting beam 80. Furthermore, to improve the strength of each cantilever, reinforcing ribs can be provided on the side surface of each I-beam, and reinforcing ribs can be provided at the corners between adjacent cantilevers, thereby further improving the strength of the entire lifting beam 80 without significantly increasing its weight.

[0054] In addition, the second support beam 82 and the first side beam 802a may each be provided with a matching connecting plate 803 at the position where they join each other. The area of ​​the connecting plate 803 may be larger than the cross-sectional area of ​​the I-beam, so as to provide more space for the connection parts.

[0055] Preferably, the connecting plate 803 is rectangular in shape, and multiple connecting holes can be formed on the rectangular connecting plate 803. The rectangular connecting plates 803 facing each other can be fastened to each other by multiple fastening members (e.g., reamed hole bolts), thereby realizing the connection between the second support beam 82 and the first side beam 802a.

[0056] As described above, the area of ​​the rectangular connecting plate is larger than the cross-sectional area of ​​the I-beam, so the rectangular connecting plate can protrude at least to the upper and / or lower side of the I-beam. Multiple reinforcing ribs can be provided between the rectangular connecting plate and the I-beam to improve the connection strength between them. For example, the reinforcing ribs can be provided between the outer upper surface and / or outer lower surface of the I-beam and the rectangular connecting plate 803. However, this invention is not limited to this; the reinforcing ribs can also be further provided between the inner surface of the I-beam and the rectangular connecting plate to further improve the connection strength between them, thereby improving the overall strength of the entire hoisting beam 80.

[0057] Furthermore, the connection structure and method between the third support beam 83 and the second side beam 802b are the same as those between the second support beam 82 and the first side beam 802a, and their detailed description is omitted.

[0058] Furthermore, the connection structure and method between the second support beam 82 and the first side beam 802a, and between the third support beam 83 and the second side beam 802b, are not limited to the above forms. For example, the connection structure between them can be a connection surface that is inclined relative to the upper and lower surfaces of the I-beam, or it can be a bent plate connection surface that forms a step shape, as long as a stable connection between them can be achieved.

[0059] like Figure 1 and Figure 2 As shown, the lifting beam may further include a first leg 815 formed on the first support beam 81, a second leg 825 formed on the second support beam 82, and a third leg 835 formed on the third support beam 83. The first leg 815 can support the first support beam 81, the second leg 825 can support the second support beam 82, and the third leg 835 can support the third support beam 83. The first leg 815, the second leg 825, and the third leg 835 can jointly support the lifting beam 80.

[0060] Preferably, four first legs 815 may be provided on the first support beam 81. The four first legs may include two first legs respectively provided on the two cantilevered parts of the first support beam 81 and two first legs respectively provided on the first side beam 802a and the second side beam 802b. Two second legs 825 may be provided on the second support beam 82, and two third legs 835 may be provided on the third support beam 83. In this case, when the lifting beam 80 is in an unassembled state, each support beam can be independently supported by its respective legs, which is convenient for transportation and assembly; when the lifting beam 80 is in an assembled state, the first legs 815, the second legs 825, and the third legs 835 can jointly support the entire lifting beam 80.

[0061] According to the embodiment, a lower suspension point area is provided on the lower surface of each cantilever, such as... Figure 1 As shown, the first cantilever includes a first lower lifting point area 811, the second cantilever includes a second lower lifting point area 812, the third cantilever includes a third lower lifting point area 813, and the fourth cantilever includes a fourth lower lifting point area 814. Lower lifting point areas 811, 812, 813, and 814 are located at the cantilever ends of each cantilever. Each lower lifting point area includes multiple lower lifting points, which are spaced apart along the length of the corresponding cantilever. Appropriate lower lifting points can be selected according to different tower dimensions.

[0062] Furthermore, the reinforcing ribs provided on the side surface of the I-beam as described above can preferably be located at positions corresponding to the lower lifting point area. Additionally, as shown in the figure, the reinforcing ribs can also be provided at positions corresponding to each outrigger. Thus, the strength of the lifting beam can be maximized with a minimal number of reinforcing ribs.

[0063] According to an embodiment of this utility model, the tower hoisting fixture may further include upper lifting point regions 88 respectively formed on the upper surface of each cantilever, with each upper lifting point region 88 having an upper lifting point 881, wherein the number of upper lifting points is less than the number of lower lifting points. Furthermore, each upper lifting point region 88 may have at least one upper lifting point 881, and the upper lifting point region 88 may be located at a position that vertically overlaps with the position of the corresponding lower lifting point region. Preferably, each upper lifting point region 88 may have only one upper lifting point to simplify the operation.

[0064] Furthermore, the hanging point area can be roughly formed into a triangular plate shape, and reinforcing ribs can also be provided between the upper surface of the I-beam and the triangular plate to improve the connection strength. In addition, one of the aforementioned hanging points can be formed at the vertex of the triangle, and the reinforcing ribs and the hanging point are staggered from each other.

[0065] Reference Figure 3 The tower hoisting fixture may also include a sling installation fixture 60 and a sling 200. 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 upper end of the connecting plate 61 can be detachably connected to a corresponding lower lifting point in the lower lifting point area. The sling 200 is installed on the balance frame 62.

[0066] According to an embodiment, the balance frame 62 may include a first sling connection portion 610 and a second sling connection portion 620, and the first sling connection portion 610 and the second sling connection portion 620 are located at both ends of the balance frame 62 relative to the rotation axis of the balance frame 62 and the connecting plate 61. The sling 200 includes a first sling 210 and a second sling 220, and the upper ends of the first sling 210 and the second sling 220 are respectively connected to the first sling connection portion 610 and the second sling connection portion 620.

[0067] The first sling connection 610 includes a first rotating pin 610a and a first sling mounting member 610b rotatably coupled to the first rotating pin 610a. The second sling connection 620 includes a second rotating pin 620a and a second sling mounting member 620b rotatably coupled to the second rotating pin 620a. The first rotating pin 610a and the second rotating pin 620a respectively pass through the balance frame 62 and are arranged parallel to the rotation axis of the balance frame 62 and the connecting plate 61. The two ends of the first sling mounting member 610b are coupled to the two ends of the first rotating pin 610a, and the two ends of the second sling mounting member 620b are coupled to the two ends of the second rotating pin 620a. The first sling 210 and the second sling 220 are respectively wound around the first sling mounting member 610b and the second sling mounting member 620b. Anti-detachment devices can be provided at both ends of the first rotating pin 610a and the second rotating pin 620a respectively, so as to ensure that the first sling mounting part 610b and the second sling mounting part 620b can be firmly connected to both ends of the first rotating pin 610a and the second rotating pin 620a and can rotate flexibly within a certain range.

[0068] Therefore, the first sling 210 and the second sling 220 are rotatably connected to the first sling connection 610 and the second sling connection 620, respectively, and their upper ends can be firmly connected and rotate flexibly within a certain range, thereby adapting to the transmission of lifting force at different angles. Furthermore, the first sling 210 and the second sling 220 can each be annular slings, with their upper ends wrapping around the first sling mounting member 610b and the second sling mounting member 620b. By providing annular slings, the force on a single sling can be reduced.

[0069] The first sling 210 and the second sling 220 are connected to the same lifting point on the tower. However, the lengths of the first sling 210 and the second sling 220 are usually not exactly the same, resulting in an imbalance of forces on them. According to an embodiment 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, ensuring that the sling 200 maintains a balanced force state. Furthermore, by rotatably connecting the upper end of the first sling 210 to the first sling connection 610 and the upper end of the second sling 220 to the second sling connection 620, it can be ensured that the first sling 210 and the second sling 220 are only subjected to forces in the vertical direction, minimizing the presence of horizontal forces.

[0070] According to an embodiment, the connecting plate 61 may include two parallel strip plates, the upper ends of which can be mounted to a corresponding lower lifting point in the lower lifting point region of the lifting beam 80 via a connecting member such as a pin (not shown), and the lower ends of which are 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 being rotatably connected to the lower end of the connecting plate 61, and the other two corners of the balance frame 62 being respectively provided with the first rotating pin 610a of the first sling connection portion 610 and the second rotating pin 620a of the second sling connection portion 620. However, the shapes of the connecting plate 61 and the balance frame 62 are not limited to these, as long as the above functions can be achieved.

[0071] like Figure 3 As shown, the lifting sling installation fixture 60 may further include an auxiliary support leg assembly 63. The auxiliary support leg assembly 63 includes a first auxiliary support leg 631, a second auxiliary support leg 632, and a support leg connecting rod 633 for mounting the first auxiliary support leg 631 and the second auxiliary support leg 632 to the connecting plate 61. By providing the first auxiliary support leg 631 and the second auxiliary support leg 632, the lifting sling installation fixture 60 can be placed upright during transportation, preventing damage to the anti-corrosion coating from impacts.

[0072] Reference Figures 4 to 8 According to an embodiment of the present invention, the tower hoisting fixture further includes a pin 300, which is inserted into a radial through hole 71 formed on the tower wall to form a hoisting point on the tower that is connected to the aforementioned lifting strap 200. The pin 300 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. The lower ends of the first lifting strap 210 and the second lifting strap 220 can be respectively hooked to the first end and the second end of the pin body 310.

[0073] 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.

[0074] The pin 300 may also include a sling limiting ring 340, which can be detachably mounted on the first limiting protrusion 320. The sling limiting ring 340 is used to limit the first sling 210 to the first end of the pin 300 when the lower end of the first sling 210 is fitted onto the first end of the pin 300. Here, during the process of lowering the pin 300 using the first sling 210, the pin 300 fitted onto 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 detached state to facilitate the insertion of the pin 300 into the radial through hole 71 and then its connection to the second limiting protrusion 330.

[0075] 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.

[0076] However, the sling limiting ring 340 of this utility model is not limited to steel wire rope. The sling limiting ring 340 can also be made of flexible material rope, as long as it can prevent the pin 300 from falling off the first sling 210.

[0077] 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.

[0078] According to an embodiment of this utility model, the pin 300 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 installation 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, thereby smoothly pulling the pin body 310 of the pin 300 into the radial through hole 71. Figure 5 The pull ring 350 is in the shape of an "Ω" 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.

[0079] 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.

[0080] like Figure 8 As 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.

[0081] 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.

[0082] 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).

[0083] Reference Figure 9The tower hoisting fixture according to this utility model may further include a sling limiting assembly 100. Preferably, it may include four sling limiting assemblies 100. Each of the four sling limiting assemblies 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.

[0084] 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.

[0085] 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.

[0086] The structure of the limiting part 120 and the mounting part 110 is not limited to Figure 9 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 9The 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.

[0087] 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.

[0088] 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.

[0089] The tower hoisting fixture of this utility model can be used to complete the tower hoisting in the following steps: First, the second support beam 82 and the third support beam 83 are spliced ​​onto the first support beam 81, and tension cables 15 are connected between adjacent cantilever arms to give them a predetermined preload; then, according to the diameter of the tower, the appropriate lower lifting point is rotated, and the sling installation fixture is installed at the corresponding lower lifting point; afterward, according to the position of the radial through hole 71, the sling limiting component can be installed at the corresponding position on the tower wall to support the sling 200. Initial positioning and guidance are provided; after the sling 200 passes through the sling limiting assembly 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 ensured to be 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 crane lifts the lifting beam 80 to achieve the lifting of multiple tower sections.

[0090] According to an embodiment of the present invention, the hoisting beam includes tension cables connecting adjacent cantilever beams, which can improve the overall strength of the hoisting beam without increasing its weight.

[0091] According to an embodiment of this utility model, by making the lifting beam detachable, the convenience of transportation can be improved.

[0092] 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.

[0093] 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, characterized in that, The tower hoisting fixture includes a hoisting beam (80) and tension cables (15). The hoisting beam (80) includes four cantilever arms arranged in a cross shape. The tension cable (15) is connected between every two adjacent cantilever arms with a predetermined preload.

2. The tower hoisting fixture according to claim 1, characterized in that, The hoisting beam (80) includes a first support beam (81), a second support beam (82), and a third support beam (83). The second support beam (82) and the third support beam (83) are detachably connected to the first support beam (81) to form four cantilever arms arranged in a cross shape. The four cantilever arms include a first cantilever arm, a second cantilever arm, a third cantilever arm, and a fourth cantilever arm. The first support beam (81) forms a first cantilever arm and a second cantilever arm that are arranged opposite to each other and integrally connected. The second support beam (82) and the third support beam (83) are arranged opposite to each other on both sides of the middle part of the first support beam (81) to form a third cantilever arm and a fourth cantilever arm that are arranged opposite to each other.

3. The tower hoisting fixture according to claim 2, characterized in that, The first support beam (81) includes a main beam (801) and a side beam (802) integrally connected to the main beam (801). The side beam (802) includes a first side beam (802a) and a second side beam (802b) that extend laterally from the middle of the first support beam (81) along its length. The second support beam (82) and the third support beam (83) are detachably mounted to the end surfaces of the first side beam (802a) and the second side beam (802b), respectively.

4. The tower hoisting fixture according to claim 3, characterized in that, Each of the main beam (801), the side beam (802), the second support beam (82), and the third support beam (83) is an I-beam.

5. The tower hoisting fixture according to claim 4, characterized in that, The second support beam (82) and the first side beam (802a) are provided with matching connecting plates (803) at their joint positions, the area of ​​which is greater than the cross-sectional area of ​​the second support beam (82) and the first side beam (802a).

6. The tower hoisting fixture according to claim 5, characterized in that, The connecting plate (803) is a rectangular connecting plate, and multiple reinforcing ribs are provided between the connecting plate (803) and the corresponding supporting beam.

7. The tower hoisting fixture according to any one of claims 2-6, characterized in that, The hoisting beam also includes a first leg (815) formed on the first support beam (81), a second leg (825) formed on the second support beam (82), and a third leg (835) formed on the third support beam (83). The first leg (815) can support the first support beam (81), the second leg (825) can support the second support beam (82), the third leg (835) can support the third support beam (83), and the first leg (815), the second leg (825) and the third leg (835) can jointly support the hoisting beam (80).

8. The tower hoisting fixture according to claim 1, characterized in that, A lower suspension point area is provided on the lower surface of each cantilever. The lower suspension point area is located at the cantilever end of the cantilever. The lower suspension point area includes multiple lower suspension points, which are arranged at intervals along the length direction of the corresponding cantilever.

9. The tower hoisting fixture according to claim 8, characterized in that, The tower hoisting fixture also includes upper lifting point areas (88) formed on the upper surface of each cantilever, with upper lifting points (881) formed on each upper lifting point area (88), wherein the number of upper lifting points is less than the number of lower lifting points.

10. The tower hoisting fixture according to claim 9, characterized in that, Each of the upper suspension point regions (88) is provided with at least one upper suspension point (881), and the upper suspension point region (88) is located at a position that overlaps with the position of the corresponding lower suspension point region in the vertical direction.

11. The tower hoisting fixture according to any one of claims 8-10, characterized in that, The tower hoisting fixture also includes a sling installation fixture (60) and a sling (200). 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 upper end of the connecting plate (61) can be detachably connected to the corresponding lower suspension point in the lower suspension point area, and the sling (200) is installed on the balance frame (62).

12. The tower hoisting fixture according to claim 11, characterized in that, The balance frame (62) includes a first sling connection (610) and a second sling connection (620), and the first sling connection (610) and the second sling connection (620) are located at opposite ends of the balance frame (62) relative to the rotation axis of the balance frame (62) and the connecting plate (61). The sling (200) includes a first sling (210) and a second sling (220), the upper ends of the first sling (210) and the second sling (220) being connected to the first sling connection part (610) and the second sling connection part (620) respectively.

13. The tower hoisting fixture according to claim 12, characterized in that, The first sling connection (610) includes a first rotating pin (610a) and a first sling mounting member (610b) rotatably coupled to the first rotating pin (610a). The second sling connection (620) includes a second rotating pin (620a) and a second sling mounting member (620b) rotatably coupled to the second rotating pin (620a). The first rotating pin (610a) and the second rotating pin (620a) respectively pass through the balance frame (62) and are arranged parallel to the rotation axis of the balance frame (62) and the connecting plate (61). The two ends of the first sling mounting member (610b) are connected to the two ends of the first rotating pin (610a), and the two ends of the second sling mounting member (620b) are connected to the two ends of the second rotating pin (620a). The first sling (210) and the second sling (220) are respectively wound around the first sling mounting member (610b) and the second sling mounting member (620b).

14. The tower hoisting fixture according to claim 12, characterized in that, The sling installation fixture (60) also includes an auxiliary support leg assembly (63), which includes a first auxiliary support leg (631), a second auxiliary support leg (632), and a support leg connecting rod (633) for mounting the first auxiliary support leg (631) and the second auxiliary support leg (632) to the connecting plate (61).

15. The tower hoisting fixture according to claim 12, characterized in that, The tower hoisting fixture also includes a pin (300) for insertion into a radial through hole (71) formed in the tower wall. 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 lower ends of the first sling (210) and the second sling (220) can be hooked to the first end and the second end of the pin body (310), respectively.

16. The tower hoisting fixture according to claim 15, characterized in that, The pin (300) also includes a sling limiting ring (340), which can be detachably mounted on the first limiting protrusion (320) to limit the first sling (210) to the first end of the pin (300) when the lower end of the first sling (210) is sleeved on the first end of the pin (300).

17. The tower hoisting fixture according to claim 16, characterized in that, The pin (300) also includes a pull ring (350) detachably disposed at the second end of the pin body (310).

18. The tower hoisting fixture according to claim 17, characterized in that, The pull ring (350) is misaligned with the second limiting protrusion (330), or the second limiting protrusion (330) can be detachably connected to the second end of the pin body (310) when the pull ring (350) is detached from the pin body (310).

19. The tower hoisting fixture according to claim 15, 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 of the tower (70).

20. The tower hoisting fixture according to claim 19, 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; The limiting part (120) extends laterally from the mounting part (110) and has a first limiting hole (131) and a second limiting hole (132) formed therein. The first sling (210) and the second sling (220) can extend downward through the first limiting hole (131) and the second limiting hole (132) respectively.

21. The tower hoisting fixture as described in claim 20, 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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