Length-adjustable blade lightering hanging beam

Abstract

The utility model discloses a blade lightering hanging beam with the adjustable length. The blade lightering hanging beam comprises a main beam component set, two auxiliary beams, four upper hanging belts and two lower hanging belts. The main beam component set is composed of a plurality of connecting components with different lengths, each connecting component comprises a pipe body and connecting flanges fixed to the two ends of the pipe body, and any connecting components can be sequentially connected through the connecting flanges to form a main beam. The two auxiliary beams are arranged in parallel and arranged on the two end sides of the main beam respectively, each auxiliary beam comprises a beam body, a second connecting flange is fixed to the middle of each auxiliary beam, and two connecting lug plates are symmetrically fixed to the two ends of each auxiliary beam, so that each auxiliary beam is connected with one end of any connecting component; the four upper hanging belts are arranged in the upper side connecting holes of the four connecting lug plates in a penetrating mode respectively and connected into a ring, the two lower hanging belts are arranged on the two auxiliary beams respectively and connected into the lower side connecting holes of the connecting lug plates through shackles, and the auxiliary beams and the lower hanging belts form U-shaped ring holes; the lightering hanging beam is simple in structure, small in construction limitation, free of energy consumption and high in construction benefit.

Description

Technical Field

[0001] The utility model relates to the technical field of fan installation facilities, in particular to a length-adjustable blade barge hanging beam. Background Art

[0002] There are two ways to install offshore wind turbine blades: single-blade hoisting and three-blade (impeller) hoisting. The single-blade hoisting process is to transfer the blades from the transport ship to the deck of the wind turbine installation ship, remove the transport tooling on the deck, and finally use the blade clamp to clamp the blade to high altitude to complete the docking of the blade and the hub. The impeller hoisting process is to transfer the blades from the transport ship to the hub on the wind turbine installation ship, and then complete the integral hoisting of the impeller. Therefore, whether it is single-blade hoisting or impeller hoisting, transferring the blades to the deck of the wind turbine installation ship is a key link in the construction process.

[0003] In the past two years, with the rapid development of wind turbines above 8MW, major complete machine manufacturers have successively launched offshore wind turbines with a single unit capacity of 8MW and above; accordingly, the length of wind turbine blades has also been increasing with the increase of single unit capacity. At present, the longest blade of wind turbines can reach 123m. With the continuous increase in the length of wind turbine blades, the distance between the two supporting points on the blades is getting larger and larger; for example, the distance between the two supporting points on a blade with a length of 80m is 50m, while the distance between the two supporting points on a blade with a length of 123m is 65m. However, the distance between the hooks of the double cranes for double-machine lifting and transshipment on ordinary wind turbine installation ships is currently 64m~65m. The corresponding lifting weight of this lifting distance is too small to meet the needs of transshipment of extra-long blades with large weight; at the same time, the appropriate clamping point spacing of wind turbine blades is within the range of 14m~20m, so that the blades are not easily damaged during the transshipment process. The distance between the clamping points is also inconsistent with the above hook spacing; therefore, the existing lifting performance of ordinary wind turbine installation ships cannot meet the current needs of transshipment of extra-long blades.

[0004] Based on the above-mentioned practical operational problems, it is necessary to design a lifting beam that can be used for the transshipment of extra-long blades, so as to complete the transshipment of wind turbine blades with the help of the lifting beam. However, if the transshipment lifting beam wants to match the fulcrum distance of the extra-long blades, there will inevitably be problems such as excessive length, poor adaptability to blade size, and inconvenience in use. At the same time, in the specific lifting application process, the large-size lifting beam needs to occupy a larger storage space, while the deck area of ​​an ordinary wind turbine installation ship is small, so how to store the extra-long blade transshipment lifting beam on board has also become a new technical problem. Utility Model Content

[0005] The purpose of the utility model is to provide a length-adjustable blade transfer hanging beam suitable for blade transfer scenarios of large-scale wind turbines above 8MW, so as to solve the above-mentioned problems of the prior art.

[0006] To this end, the technical solution of the utility model is as follows:

[0007] A length-adjustable blade barge suspension beam, comprising a main beam component group, two sub-beams, four upper suspension belts and two lower suspension belts; wherein the main beam component group is composed of a plurality of connecting components with different lengths, and each connecting component comprises a pipe body and two connecting flanges fixed on the end surfaces of both ends of the pipe body, so that any connecting component can be connected and fixed in sequence through each adjacent connecting flange at both ends to form a main beam; two sub-beams are arranged in parallel and are respectively disposed on the end sides of both ends of the main beam; the sub-beam comprises a beam body, a second connecting flange is fixed on the outer wall of the middle part, two connecting ear plates are symmetrically fixed at the two ends of the beam body, and the second connecting flange and the two connecting ear plates are respectively The beam body is disposed on the opposite side beam wall of the beam body; two connecting holes are symmetrically provided on each connecting ear plate along the radial direction of the beam body of the auxiliary beam; the second connecting flange is the same as the connecting flange on each connecting member, so that the auxiliary beam can be connected to one end of any connecting member; the four upper slings are of the same length, which are respectively passed through the upper connecting holes of the four connecting ear plates and connected to form a ring; the two lower slings are of the same length, which are respectively arranged under the two auxiliary beams; the two ends of each lower sling are detachably connected to the lower connecting holes of the connecting ear plates at the two ends of the corresponding auxiliary beam through shackles, so that the auxiliary beam and the lower sling connected thereunder form a U-shaped eye.

[0008] Furthermore, the main beam member group is composed of two 0.5m connecting members, three 1m connecting members, one 2m connecting member, one 4m connecting member and two 6m connecting members.

[0009] Furthermore, a plurality of reinforcing ribs are evenly distributed and fixed along the circumferential direction at both ends of the tube body of each connecting member, and each reinforcing rib is respectively fixed on the outer wall of the tube end and the flange of the adjacent connecting flange.

[0010] Furthermore, a pin hole is provided at the center of the connecting flange at one end of each connecting member, and a pin that can cooperate with the pin hole is vertically fixed at the center of the connecting flange at the other end, so that when the two connecting members are connected through the connecting flange, the pin on one connecting flange is inserted into the pin hole of the other connecting flange.

[0011] Furthermore, the tube body of each connecting component of the main beam component group is made of Q235B carbon steel, the beam body of the auxiliary beam is made of Q235B carbon steel, the flange plate thickness of the connecting flange and the second connecting flange is 30mm, and 20 M45 bolt holes are evenly distributed on the plate surface along the circumferential direction to ensure the connection strength between the connecting components.

[0012] Furthermore, the upper sling adopts a polyurethane sling with a maximum load of 30t.

[0013] Furthermore, the lower sling adopts a polyurethane sling with a maximum load of 40t.

[0014] Compared with the prior art, the length-adjustable blade transfer hanging beam has a simple structure, small construction environment limitations, and does not involve oil, gas, and electricity consumption; in terms of storage, the assembled structure of the transfer hanging beam does not occupy too much space on ordinary wind turbine installation ships, does not affect the storage of large components, and has strong adaptability to the storage environment; in terms of use, the transfer hanging beam can be widely used for the transfer of blades of any length with a clamping point distance within the range of 14m to 20m, reducing the construction cost of manufacturing and replacing the blade transfer hanging beam, and its simple assembly method and easy operation make it easy for staff to master and use it, which can play a key role in subsequent projects and greatly improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a 0.5m component of the length-adjustable blade barge hanging beam of the utility model;

[0016] Figure 2 It is a structural schematic diagram of a 1m component of the length-adjustable blade barge hanging beam of the utility model;

[0017] Figure 3 It is a structural schematic diagram of a 2m component of the length-adjustable blade barge hanging beam of the utility model;

[0018] Figure 4 It is a structural schematic diagram of a 4m component of the length-adjustable blade barge hanging beam of the utility model;

[0019] Figure 5 It is a structural schematic diagram of a 6m component of the length-adjustable blade barge hanging beam of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the auxiliary beam of the length-adjustable blade barge hanging beam of the utility model;

[0021] Figure 7 This is a side view of a 14m blade barge hanging beam of Example 1 of the utility model;

[0022] Figure 8 This is a side view of the other side of the 14m blade barge hanging beam of Example 1 of the utility model;

[0023] Fig. 9 This is a top view of the 20m blade transfer beam of Example 2 of the utility model. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are by no means intended to limit the present invention in any way.

[0025] The length-adjustable blade transshipment hanging beam comprises a main beam component group, two secondary beams 7, four upper slings 8 and two lower slings 9; the main beam component group is composed of two 0.5m connecting components 2, three 1m connecting components 3, one 2m connecting component 4, one 4m connecting component 5 and two 6m connecting components 6.

[0026] See also Figure 1 to Figure 5 The 0.5m connecting member 2 is a cylindrical tube body with a length of 0.5m, and a connecting flange is connected to each end face of the tube body; the 1m connecting member 3 is a cylindrical tube body with a length of 1m, and a connecting flange is connected to each end face of the tube body; the 2m connecting member 4 is a cylindrical tube body with a length of 2m, and a connecting flange is connected to each end face of the tube body; the 4m connecting member 5 is a cylindrical tube body with a length of 4m, and a connecting flange is connected to each end face of the tube body; the 6m connecting member 6 is a cylindrical tube body with a length of 6m, and a connecting flange is connected to each end face of the tube body; the connecting flanges arranged at both ends of the tube body of each connecting member are the same, and the connecting flanges are fixed to the end faces of the tube body at both ends by welding, so that any two connecting members can be connected and fixed as a whole through the connecting flanges on the adjacent end sides.

[0027] As a preferred technical solution of this embodiment, a number of reinforcing ribs are evenly welded and fixed along the circumferential direction at both ends of the tube body of each connecting member; wherein the reinforcing rib is specifically a right-angled trapezoidal plate, and two adjacent and mutually perpendicular edges thereof are respectively vertically welded and fixed on the outer wall of the tube end and the flange plate of the adjacent connecting flange, so as to enhance the connection strength between the connecting flange and the tube body.

[0028] As another preferred technical solution of this embodiment, in order to further enhance the connection strength between the components, a pin hole is provided at the center of the connecting flange at one end of each connecting component, and a pin that can cooperate with the pin hole is vertically fixed at the center of the connecting flange at the other end, so that when the two connecting components are connected through the connecting flanges, the pin on one connecting flange is inserted into the pin hole of the other connecting flange to enhance the connection strength between the two connecting flanges.

[0029] When in use, connecting components of different lengths are assembled in different ways according to the blade specifications to form a main beam with a length of 14m to 20m; when the appropriate clamping point spacing corresponding to the blade specifications is 14m, the operator can sequentially connect a 1m connecting component 3, a 6m connecting component 6, a 4m connecting component 5, a 2m connecting component 4 and a 1m connecting component 3 to form a main beam with a length of 14m; when the blade clamping point spacing is 15m, the operator can sequentially connect a 1m connecting component 3, a 6m connecting component 6, a 4m connecting component 5, a 2m connecting component 4 and two 1m connecting components When the blade clamping point spacing is 16m, the operator can sequentially connect a 1m connecting member 3, two 6m connecting members 6, a 2m connecting member 4 and a 1m connecting member 3 to form a main beam with a length of 16m; by analogy, the components used to form the main beam in this embodiment can meet the configuration of main beams of integer lengths from 14m to 20m, and its two 0.5m connecting members 2 can, on the basis of the above, enable the length specification of the main beam to gradually increase from 14m to 20m at a length interval of 0.5m, that is, a total of thirteen main beam length specifications can be configured.

[0030] See also Figure 6 The sub-beam 7 is a cylindrical tubular beam body, and two connecting ear plates 7b are symmetrically welded and fixed on the end side outer walls at both ends of the beam body; each connecting ear plate 7b has two connecting holes symmetrically provided along the radial direction of the beam body of the sub-beam 7; a second connecting flange 7a is fixed in the center of the beam body of the sub-beam 7, and the second connecting flange 7a is welded and fixed to the beam body in a manner that one side of the plate surface is attached to the outer wall of the beam body, and it and the two connecting ear plates 7b are arranged on the opposite side beam walls of the beam body in a manner that the plate surfaces are parallel; the second connecting flange 7a is the same as the connecting flanges on each connecting member, so that the two ends of the main beam are respectively connected to the second connecting flanges on the sub-beam 7 on the same side through the end side connecting flanges, thereby realizing the vertical connection and fixing of the main beam between the two sub-beams 7.

[0031] In this embodiment, the tube body of each connecting member is made of Q235B carbon steel with high structural strength, high stability and strong wear resistance, with an outer diameter of 150 mm and a wall thickness of 15 mm; the flange plate thickness of the connecting flange at the end side of the tube body is 30 mm, and 20 M45 bolt holes are evenly distributed on it along the circumferential direction; the beam body of the sub-beam 7 is made of Q235B carbon steel and is a cylindrical tube body, with an outer diameter of 130 mm and a wall thickness of 15 mm; the second connecting flange 7a on the sub-beam 7 has the same specifications as the connecting flange, and the thickness of the connecting ear plate 7b thereon is also 30 mm, and the welding area relative to the beam body is not less than 3 / 4 of the surface area of ​​the connecting ear plate. When in use, connecting components of different lengths are assembled in different ways according to the blade specifications to form main beams with lengths ranging from 14m to 20m; according to on-site usage conditions, main beams of different lengths formed by assembling the connecting components of this embodiment can realize the lifting of wind turbine blades with a maximum weight of 60t, that is, it can meet the requirements for the transfer of blades in offshore wind turbines with a single unit capacity of 8MW and above.

[0032] The four upper slings 8 have the same length and are all polyurethane slings with a maximum load of 30t; the four upper slings 8 are respectively inserted into four connecting holes on the upper side of the four connecting ear plates 7b and are respectively connected to form rings for easy connection to the hook 1 of the crane; the length of the upper slings 8 is adapted to the length of the subbeam 7, so that when the four upper slings 8 are connected to the hook 1 of the crane, the angle between the inclination angle of the upper slings 8 and the horizontal plane is 60 degrees.

[0033] The two lower slings 9 have the same length and are both polyurethane slings with a maximum load of 40t; the two lower slings 9 are respectively arranged at the two sub-beams 7. Specifically, the two ends of each lower sling 9 are detachably connected to the lower connection holes of the connecting ear plates 7b at the two ends of the corresponding sub-beam 7 through shackles, so that the sub-beam 7 and the lower slings 9 connected thereunder form a U-shaped eye. The length of the lower sling 9 is adapted to the size of the blade clamping point, so that the blade is hung under the beam body formed by the main beam and the sub-beam through the two lower slings 9.

[0034] Example 1

[0035] A blade barge hanging beam with a length of 14 m is assembled by using the length-adjustable blade barge hanging beam of this embodiment, which is correspondingly suitable for wind turbine blades with a length of 70 m to 90 m and a clamping point spacing of 14 m.

[0036] See also Figure 8 and Fig. 9The blade transshipment hanging beam specifically includes a main beam, two sub-beams 7, four upper hanging straps 8 and two lower hanging straps 9; the main beam is composed of a 1m connecting member 3, a 6m connecting member 6, a 4m connecting member 5, a 2m connecting member 4 and a 1m connecting member 3 connected in sequence; the two sub-beams 7 are parallel and symmetrically arranged at both ends of the main beam, and are fixed to the ends of the two 1m connecting members 3 through connecting flanges; the four upper hanging straps 8 are respectively passed through the upper connecting holes of the four connecting ear plates 7b on the two sub-beams 7, and are hung on the crane hook 1 in a ring manner; the two lower hanging straps 9 are arranged on the sides of the two sub-beams 7, and the two ends of each lower hanging strap 9 are detachably fixed to the lower connecting holes of the connecting ear plates 7b on the two ends of the sub-beam 7 through shackles; the two lower hanging straps 9 with U-shaped ring eyes are hooked at the two clamping points of the fan blades.

[0037] Example 2

[0038] A blade barge hanging beam with a length of 20 m is assembled by using the length-adjustable blade barge hanging beam of this embodiment, which is correspondingly suitable for wind turbine blades with a length of 120 m to 130 m and a clamping point spacing of 20 m.

[0039] See also Fig. 9 The blade transshipment hanging beam specifically includes a main beam, two sub-beams 7, four upper hanging straps 8 and two lower hanging straps 9; the main beam is composed of a 1m connecting member 3, two 6m connecting members 6, a 4m connecting member 5, a 2m connecting member 4 and a 1m connecting member 3 connected in sequence; the two sub-beams 7 are parallel and symmetrically arranged at both ends of the main beam, and are fixed to the ends of the two 1m connecting members 3 through connecting flanges; the four upper hanging straps 8 are respectively passed through the upper connecting holes of the four connecting ear plates 7b on the two sub-beams 7, and are hung on the crane hook 1 in a ring manner; the two lower hanging straps 9 are arranged on the sides of the two sub-beams 7, and the two ends of each lower hanging strap 9 are detachably fixed to the lower connecting holes of the connecting ear plates 7b on the two ends of the sub-beam 7 through shackles; the two U-shaped lower hanging straps 9 are hooked at the two clamping points of the fan blades.

[0040] See also Figure 8-Figure 9 The specific use of the length-adjustable blade barge beam is as follows:

[0041] Before use, the operator selects multiple connecting components of appropriate length on the deck of the wind turbine installation ship according to the distance between the blade clamping points, and assembles them into a main beam through flanges, and then installs two sub-beams 7, four upper slings 8 and two lower slings 9 on the main beam to form a transshipment sling beam suitable for the blade specifications; in the initial state, only one end of the two lower slings 9 is connected to the connecting ear plate of the sub-beam 7 through a shackle, and the other end hangs naturally; at the same time, two artificial wind ropes are connected to the root and tip of the wind turbine blades to adjust the lifting angle of the blades.

[0042] When the blade lifting begins, the operator connects the transshipment lifting beam to the crane hook head through four upper lifting belts 8; then, the commander directs the crane to rotate outward, rotates the transshipment lifting beam to the supporting position of the blade to be lifted, and slowly drops the hook and fine-tunes the angle, so that the staff can pass the lower lifting belt 9 around the blade and successfully connect it to the ear plate at the other end of the auxiliary beam 7; after the blade is lifted by the two lower lifting belts 9 connected to the bottom sides of the two auxiliary beams 7, the operator directs the crane to adjust the position of the lifting belt while lifting the hook until the lifting belt is at the supporting point to avoid the stability of the blade movement process affected by the surging waves. After adjusting the position of the lifting belt, the hook is quickly lifted until the blade is detached from the transport ship. The lifting process uses the wind rope to control the suspension stability of the blade; after the blade is transferred to the deck of the installation ship, the operator releases the connection between the lower lifting belt 9 and the auxiliary beam 7 to separate the blade from the lifting beam; the transshipment lifting beam can continue to repeat the above actions to transfer the next blade.

[0043] In summary, the length-adjustable blade transfer lifting beam has a simple structure and little limitation on the construction environment. It can be widely used for the transfer of blades of any length with a clamping point distance within the range of 14m to 20m according to actual lifting needs, and does not involve consumption of oil, gas, or electricity. It can be disassembled and stored after use, and has strong adaptability to the storage environment.

[0044] It should be noted that the parts of the utility model that are not disclosed in detail belong to the common knowledge in the field; in addition, although the above describes the illustrative specific implementation methods of the utility model to facilitate technical personnel in this technical field to understand the utility model, it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

Claims

1. A length-adjustable blade barge hanging beam, characterized in that: The invention comprises a main beam component group, two auxiliary beams (7), four upper slings (8) and two lower slings (9); wherein the main beam component group is composed of a plurality of connecting components with different lengths, and each connecting component comprises a tube body and two connecting flanges fixed on the end surfaces of both ends of the tube body, so that any connecting components can be connected and fixed in sequence through each adjacent connecting flange at both ends to form a main beam; the two auxiliary beams (7) are arranged in parallel and are disposed at both ends of the main beam; the auxiliary beam (7) comprises a beam body, a second connecting flange (7a) is fixed on the outer wall of the middle part of the beam body, two connecting ear plates (7b) are symmetrically fixed at both ends, and the second connecting flange (7a) and the two connecting ear plates (7b) are disposed on the opposite side beam walls of the beam body; each Two connection holes are symmetrically provided on the connection ear plate (7b) along the radial direction of the beam body of the auxiliary beam (7); the second connection flange (7a) is the same as the connection flange on each connection member, so that the auxiliary beam (7) can be connected to one end of any connection member; four upper slings (8) are of the same length and are respectively passed through the upper connection holes of the four connection ear plates (7b) and connected to form a ring; two lower slings (9) are of the same length and are respectively arranged under the two auxiliary beams (7); the two ends of each lower sling (9) are detachably connected to the lower connection holes of the connection ear plates (7b) at the two ends of the corresponding auxiliary beam (7) through shackles, so that the auxiliary beam (7) and the lower sling (9) connected thereunder form a U-shaped eye.

2. The length-adjustable blade barge suspension beam according to claim 1, characterized in that: The main beam component group is composed of two 0.5m connecting components (2), three 1m connecting components (3), one 2m connecting component (4), one 4m connecting component (5) and two 6m connecting components (6).

3. The length-adjustable blade barge hanging beam according to claim 1, characterized in that: A plurality of reinforcing ribs are evenly distributed and fixed along the circumferential direction at both ends of the pipe body of each connecting component, and each reinforcing rib is respectively fixed on the outer wall of the pipe end and the flange plate of the adjacent connecting flange.

4. The length-adjustable blade barge hanging beam according to claim 1, characterized in that: A pin hole is provided at the center of the connecting flange at one end of each connecting member, and a latch that can cooperate with the pin hole is vertically fixed at the center of the connecting flange at the other end, so that when the two connecting members are connected through the connecting flange, the latch on one connecting flange is inserted into the pin hole of the other connecting flange.

5. The length-adjustable blade barge hanging beam according to claim 1, characterized in that: The pipe bodies of the connecting components of the main beam component group are made of Q235B carbon steel, and the beam body of the auxiliary beam (7) is made of Q235B carbon steel.

6. The length-adjustable blade barge hanging beam according to claim 1, characterized in that: The thickness of the flange plates of the connecting flange and the second connecting flange (7a) is 30 mm, and 20 M45 bolt holes are evenly distributed in the circumferential direction on the plate surface.

7. The length-adjustable blade barge suspension beam according to claim 1, characterized in that: The upper sling (8) adopts a polyurethane sling with a maximum load of 30t.

8. The length-adjustable blade barge hanging beam according to claim 1, characterized in that: The lower sling (9) adopts a polyurethane sling with a maximum load of 40t.

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