A non-moment hoisting tooling for offshore floating wind platform equipment modules

Abstract

The utility model relates to a kind of bending moment-free hoisting tool of offshore floating type wind power platform equipment module, including a horizontal rectangular frame assembly, horizontal rectangular frame assembly is made of four support beams, four support beams are in the same horizontal plane;Multiple two-way lifting lug connecting components are evenly distributed at the angle of horizontal rectangular frame assembly, and are fixedly connected with adjacent two support beams;A anti-swing component, the anti-swing component includes the central stabilizing disc placed directly above horizontal rectangular frame assembly and multiple guide wheel groups, and multiple guide wheel groups are symmetrically arranged with the center of horizontal rectangular frame assembly;The central stabilizing disc is connected with hoisting point by first pull rope, and is fixed with two-way lifting lug connecting component by second pull rope via guide wheel group, and two-way lifting lug connecting component is also connected with the module to be hoisted by third pull rope.The utility model has the following advantages: it can not only effectively resist the swing impact caused by strong wind and other bad environment, but also ensure that hoisting frame always remains horizontal and stable during operation.

Description

Technical Field

[0001] This utility model belongs to the field of wind power equipment module hoisting, specifically relating to a moment-free hoisting fixture for offshore floating wind power platform equipment modules. Background Technology

[0002] As large structures, the hoisting of offshore floating wind power platform equipment modules is a crucial step in the construction and maintenance process. However, traditional hoisting equipment has revealed numerous technical deficiencies in practical applications, especially in harsh environments such as strong winds, severely impacting the safety and efficiency of operations.

[0003] First, in open-air operating environments, external loads such as strong winds can cause significant six-degree-of-freedom swaying in the hoisting system. This swaying not only leads to instability of the module during lifting and lowering, increasing the risk of collision with surrounding structures, but also generates substantial dynamic additional loads within the slings and hoisting structure, posing a threat to hoisting safety.

[0004] Secondly, in order to achieve moment-free force transmission, existing technologies often employ special connecting transition components (such as pin connections) to allow relative deflection between adjacent support beams. This results in adjacent support beams being spatially misaligned, forming a non-coplanar frame structure. This structure has significant drawbacks: on the one hand, it weakens the overall stability of the hoisting frame, and when subjected to lateral wind loads or swaying, the structure's torsional stiffness is insufficient, easily leading to instability; on the other hand, this misaligned distribution causes uneven stress on the wind turbine modules connected below, making it difficult to ensure that all lifting points are always in an ideal vertical tension state, thus introducing unpredictable bending moments and compressive stresses locally within the modules.

[0005] Therefore, a new type of moment-free hoisting fixture is needed, which can effectively resist the swaying impact caused by strong winds and other harsh environments, and ensure that the hoisting frame remains horizontal and stable during operation, avoiding uneven stress caused by structural misalignment. Utility Model Content

[0006] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a moment-free hoisting fixture for offshore floating wind power platform equipment modules, effectively solving the above-mentioned technical problems.

[0007] The objective of this utility model is achieved through the following technical solution: a moment-free hoisting fixture for offshore floating wind power platform equipment modules, comprising... A horizontal rectangular frame assembly, which consists of four support beams, all of which are on the same horizontal plane; Multiple bidirectional lifting lugs are evenly distributed at the angles of the horizontal rectangular frame assembly and are fixedly connected to two adjacent support beams; An anti-sway assembly includes a central stabilizing disc positioned directly above a horizontal rectangular frame assembly and multiple guide wheel assemblies arranged symmetrically around the center of the horizontal rectangular frame assembly. The central stabilizing disc is connected to the lifting point via a first pull rope and fixed to a bidirectional lifting lug connection assembly via a second pull rope through the guide wheel assemblies. The bidirectional lifting lug connection assembly is also connected to the module to be lifted via a third pull rope.

[0008] A further improvement of this utility model is that: the bidirectional lifting lug connecting assembly includes a support beam flange placed at both ends of the support beam and a bidirectional lifting lug flange fixed to the support beam flange by connecting bolts. The bidirectional lifting lug flanges of two adjacent support beams are vertically correspondingly distributed. Two vertical connecting plates are vertically arranged on the outer end face of the two corresponding bidirectional lifting lug flanges. An upper pull roller is rotatably arranged between the two vertical connecting plates at one end of any support beam, and a lower pull roller is rotatably arranged between the two vertical connecting plates at the other end. A fixing plate is fixedly connected between the vertical connecting plates of two adjacent support beams.

[0009] A further improvement of this utility model is that the outer end faces of the two vertical connecting plates on the same side have inner reinforcing ribs, and the two inner reinforcing ribs of each bidirectional lifting lug connecting group are connected to the fixing plate to form an isosceles right-angled triangular structure.

[0010] A further improvement of this utility model is that: the outer wall of the vertical connecting plate and the corresponding bidirectional lifting lug flange have external reinforcing ribs.

[0011] A further improvement of this utility model is that: the guide wheel assembly includes a connecting rod disposed between two adjacent support beams, the upper surface of the connecting rod has a guide wheel frame, the guide wheel frame has two guide wheels, the two guide wheels are symmetrically arranged on both sides of the expected path of the corresponding second pull rope, and there is a gap between the two guide wheels, the gap forming a constraint channel for the second pull rope to pass through.

[0012] A further improvement of this utility model is that the guide wheel is rotatably mounted in the guide wheel frame via a wheel axle, and the guide wheel is made of nylon or a composite wheel with a steel core covered with polyurethane.

[0013] A further improvement of this utility model is that the two ends of the connecting rod are fixedly connected to two adjacent support beams, forming an isosceles right triangle structure.

[0014] This utility model has the following advantages compared with the prior art: 1. In this utility model, a rigid rectangular frame is formed by four supporting beams in the same horizontal plane, which fundamentally eliminates the frame distortion and instability caused by structural misalignment in traditional tooling. This structure provides a stable reference plane for the entire hoisting system, ensuring that the hoisting force is evenly and vertically transmitted to the floating wind power module through the four hoisting points. This effectively avoids the additional bending moment generated inside the module due to uneven force, truly realizing moment-free hoisting and greatly ensuring the structural safety of expensive wind power modules. 2. The central stabilizing disc and symmetrically distributed guide wheel assembly in this utility model form an efficient and stable connection with the pull rope. The central stabilizing disc, as an upper stabilizing mass block, can change the motion response of the system and consume swaying energy. Secondly, the guide wheel assembly provides precise guidance and lateral constraint for the pull rope, which greatly limits the lateral swing amplitude of the sling under the action of wind and waves. The two work together to significantly reduce the sway response of the entire hoisting system under severe weather conditions and improve the stability and safety of the hoisting process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 for Figure 1 A schematic diagram of the structure of the bidirectional lifting lug connection assembly.

[0017] Figure 3 for Figure 1 A schematic diagram of the structure of the guide wheel assembly.

[0018] Numbering on the map: 1-Support beam, 2-Two-way lifting lug connection assembly, 3-Anti-sway assembly; 21-Support beam flange, 22-Double lifting lug flange, 23-Vertical connecting plate, 24-Connecting fixing plate, 25-Inner reinforcing rib, 26-Upper pull roller, 27-Lower pull roller, 28-Outer reinforcing rib, 29-Connecting bolt; 31-Central stabilizing disc, 32-Guide wheel assembly, 33-First pull rope, 34-Second pull rope, 35-Third pull rope; 321-Guide wheel frame, 322-Guide wheel, 323-Gap, 324-Connecting rod, 325-Wheel axle. Detailed Implementation

[0019] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship, such as those based on the orientation or positional relationship shown in the drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure or unit referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, terms such as “connection,” “provided with,” and “have” should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can be described as a mechanical connection, a direct connection, or a connection through an intermediate medium. Those skilled in the art can understand the basic meaning of the above terms in this utility model according to the specific circumstances. Example 1

[0022] A moment-free hoisting fixture for offshore floating wind power platform equipment modules, referring to... Figure 1 ,include A horizontal rectangular frame assembly, which consists of four support beams 1, all of which are on the same horizontal plane; Multiple bidirectional lifting lugs 2 are evenly distributed at the angle of the horizontal rectangular frame assembly and are fixedly connected to two adjacent support beams 1; An anti-sway assembly 3 includes a central stabilizing disc 31 placed directly above the horizontal rectangular frame assembly and multiple guide wheel sets 32. The multiple guide wheel sets 32 are arranged symmetrically around the center of the horizontal rectangular frame assembly. The central stabilizing disc 31 is connected to the lifting point via a first pull rope 33 and is fixed to the bidirectional lifting lug connection assembly 2 via a second pull rope 34 through the guide wheel sets 32. The bidirectional lifting lug connection assembly 2 is also connected to the module to be lifted via a third pull rope 35.

[0023] In this invention, a rigid rectangular frame is formed by four supporting beams 1 on the same horizontal plane, which fundamentally eliminates the frame distortion and instability caused by structural misalignment in traditional tooling. This structure provides a stable reference plane for the entire hoisting system, ensuring that the hoisting force is evenly and vertically transmitted to the floating wind turbine module through the four hoisting points. This effectively avoids the additional bending moment generated inside the module due to uneven force, truly achieving moment-free hoisting and greatly ensuring the structural safety of expensive wind turbine modules.

[0024] In this invention, the central stabilizing disc 31 and the symmetrically distributed guide wheel assembly 32 form an efficient and stable connection with the pull rope. The central stabilizing disc 31, as an upper stabilizing mass block, can change the motion response of the system and consume swaying energy. Secondly, the guide wheel assembly 32 provides precise guidance and lateral constraint for the pull rope, which greatly limits the lateral swing amplitude of the sling under the action of wind and waves. The two work together to significantly reduce the sway response of the entire hoisting system under severe weather conditions and improve the stability and safety of the hoisting process.

[0025] Furthermore, refer to Figure 2 The bidirectional lifting lug connection assembly 2 includes a support beam flange 21 located at both ends of the support beam 1 and a bidirectional lifting lug flange 22 fixed to the support beam flange 21 by connecting bolts 29. The bidirectional lifting lug flanges 22 of two adjacent support beams 1 are vertically correspondingly distributed. Two vertical connecting plates 23 are vertically arranged on the outer end face of the two corresponding bidirectional lifting lug flanges 22. An upper pull roller 26 is rotatably arranged between the two vertical connecting plates 23 at one end of any support beam 1, and a lower pull roller 27 is rotatably arranged between the two vertical connecting plates 23 at the other end. A fixing plate 24 is fixedly connected between the vertical connecting plates 23 of two adjacent support beams 1.

[0026] In this utility model, the bidirectional lifting lug connection assembly 2 forms a stable and closed bidirectional three-dimensional frame structure through the connection of the support beam flange, the bidirectional lifting lug flange, the vertical connecting plate and the fixing plate. This rigidly connects the two originally independent lifting points into a whole, greatly enhancing the deformation resistance and integrity of the nodes in the horizontal plane, and ensuring that the loads from the support beams in both directions can be stably integrated and transmitted.

[0027] Furthermore, the outer end faces of the two vertical connecting plates 23 on the same side have inner reinforcing ribs 25, and the two inner reinforcing ribs 25 of each bidirectional lug connecting group are connected to the fixing plate 24 to form an isosceles right-angled triangular structure.

[0028] By utilizing the stability principle of isosceles triangles, the large-scale load and potential eccentric bending moment generated during hoisting are efficiently converted into axial stress within the component and evenly distributed throughout the entire support beam. This greatly enhances the bending and shear resistance of the joint area and structurally eliminates the risk of failure caused by stress concentration.

[0029] Furthermore, the outer wall of the vertical connecting plate 23 has an outer reinforcing rib 28 between it and the corresponding bidirectional lifting lug flange 22, which further improves the structural strength of the bidirectional lifting lug connection assembly. Example 2

[0030] Based on Example 1, referring to Figure 3The guide wheel assembly 32 includes a connecting rod 324 disposed between two adjacent support beams 1. The upper surface of the connecting rod 324 has a guide wheel frame 321. The guide wheel frame 321 has two guide wheels 322. The two guide wheels 322 are symmetrically arranged on both sides of the expected path of the corresponding second pull rope 34. There is a gap 323 between the two guide wheels 322, and the gap 323 forms a constraint channel for the second pull rope 34 to pass through.

[0031] In this embodiment, the second pull rope 34, through two symmetrically arranged guide wheels 322 and the constraint channel formed between the two guide wheels 322, strictly restricts the second pull rope 34 to the expected hoisting path, effectively counteracting the lateral sway of the pull rope caused by external forces such as wind and waves, minimizing the amplitude of the pull rope's sway, and thus more reliably transmitting the stabilizing effect of the central stabilizing disc 31 to the hoisting frame through the pull rope. Secondly, when the second pull rope 34 deflects due to minor movements of the hoisting system, the guide wheels 322 in contact with the second pull rope 34 roll accordingly. This rolling friction replaces traditional sliding friction, greatly reducing rope wear, avoiding sudden load impacts caused by jamming or excessive friction, ensuring smooth force transmission and long-term reliability of the entire anti-sway system.

[0032] Furthermore, the guide wheel 322 is rotatably mounted in the guide wheel frame 321 via the wheel axle 325. The guide wheel 322 is made of nylon or a composite wheel with a steel core covered with polyurethane. The rolling friction significantly reduces the wear of the second rope 34. At the same time, the nylon or polyurethane coating can effectively buffer impact, absorb vibration, and protect the surface of the rope.

[0033] Furthermore, the two ends of the connecting rod 324 are fixedly connected to the two adjacent support beams 1, forming an isosceles right triangle structure. This structural design utilizes the stability principle of triangles to efficiently decompose the lateral load on the guide wheel assembly into the axial force and shear force of the support beams, greatly enhancing the stiffness and torsional resistance of this local area and preventing structural deformation or fatigue damage caused by long-term shaking. At the same time, the connecting rod 324 combines the guide wheel frame 321, the guide wheel 322 and the support beam 1 into a whole, enhancing the structural strength of the horizontal rectangular frame assembly.

[0034] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A moment-free hoisting fixture for offshore floating wind power platform equipment modules, characterized in that: include A horizontal rectangular frame assembly, the horizontal rectangular frame assembly being composed of four support beams (1), the four support beams (1) being on the same horizontal plane; Multiple bidirectional lifting lugs (2) are evenly distributed at the angle of the horizontal rectangular frame assembly and are fixedly connected to two adjacent support beams (1). An anti-sway assembly (3) includes a central stabilizing disc (31) placed directly above the horizontal rectangular frame assembly and multiple guide wheel sets (32). The multiple guide wheel sets (32) are arranged symmetrically with respect to the center of the horizontal rectangular frame assembly. The central stabilizing disc (31) is connected to the hoisting point via a first pull rope (33) and fixed to the bidirectional lifting lug connection assembly (2) via the guide wheel sets (32) via a second pull rope (34). The bidirectional lifting lug connection assembly (2) is also connected to the module to be hoisted via a third pull rope (35).

2. The moment-free hoisting fixture for a floating offshore wind power platform equipment module according to claim 1, characterized in that: The bidirectional lifting lug connection assembly (2) includes a support beam flange (21) placed at both ends of the support beam (1) and a bidirectional lifting lug flange (22) fixed to the support beam flange (21) by connecting bolts (29). The bidirectional lifting lug flanges (22) of two adjacent support beams (1) are vertically correspondingly distributed. Two vertical connecting plates (23) are vertically arranged on the outer end face of the two corresponding bidirectional lifting lug flanges (22). There is an upper pull roller (26) rotatably arranged between the two vertical connecting plates (23) at one end of any support beam (1), and a lower pull roller (27) rotatably arranged between the two vertical connecting plates (23) at the other end. A fixing plate (24) is fixedly connected between the vertical connecting plates (23) of two adjacent support beams (1).

3. The moment-free hoisting fixture for an offshore floating wind power platform equipment module according to claim 2, characterized in that: The outer end faces of the two vertical connecting plates (23) on the same side have inner reinforcing ribs (25), and the two inner reinforcing ribs (25) of each bidirectional lug connecting group are connected to the fixing plate (24) to form an isosceles right triangle structure.

4. The moment-free hoisting fixture for a floating offshore wind power platform equipment module according to claim 3, characterized in that: The outer wall of the vertical connecting plate (23) has an outer reinforcing rib (28) between it and the corresponding bidirectional lifting flange (22).

5. The moment-free hoisting fixture for an offshore floating wind power platform equipment module according to claim 4, characterized in that: The guide wheel assembly (32) includes a connecting rod (324) disposed between two adjacent support beams (1). The upper surface of the connecting rod (324) has a guide wheel frame (321). The guide wheel frame (321) has two guide wheels (322). The two guide wheels (322) are symmetrically arranged on both sides of the expected path of the corresponding second pull rope (34). There is a gap (323) between the two guide wheels (322). The gap (323) forms a constraint channel for the second pull rope (34) to pass through.

6. The moment-free hoisting fixture for a floating offshore wind power platform equipment module according to claim 5, characterized in that: The guide wheel (322) is rotatably mounted in the guide wheel frame (321) via a wheel axle (325). The guide wheel (322) is made of nylon or a composite wheel with a steel core covered with polyurethane.

7. The moment-free hoisting fixture for a floating offshore wind power platform equipment module according to claim 6, characterized in that: The two ends of the connecting rod (324) are fixedly connected to the two adjacent support beams (1) and form an isosceles right triangle structure.

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