Supporting beam, tower drum and wind generating set

Abstract

The embodiment of the utility model provides a supporting beam, a tower drum and a wind generating set, the supporting beam is used for the wind generating set, and the supporting beam comprises a connecting assembly used for being connected with the inner side of the tower drum of the wind generating set; the side beam is connected to the connecting assembly, a plurality of tower drum accessory connecting parts distributed at intervals are arranged on the side beam, and the tower drum accessory connecting parts are used for being connected with tower drum accessories; wherein the side beam is rotatably connected to the connecting assembly through a first rotating shaft, so that the supporting beam can be switched between an unfolded state and a folded state, in the unfolded state, the side beam extends in the direction away from the connecting assembly, and the side beam can rotate around the first rotating shaft towards the connecting assembly to be in the folded state. The supporting beam has the unfolded state and the folded state, in the folded state, part of the side beams can rotate to the side, facing the connecting beam, of the main beam, the space size occupied by the whole supporting beam can be reduced, and the supporting beam is convenient to transport and store.

Description

Technical Field

[0001] This application relates to the field of wind power generation technology, and in particular to a tower and a wind turbine generator set. Background Technology

[0002] With the continuous development of technology, the requirements for wind turbine generator sets are becoming increasingly stringent. Wind turbine generator sets contain support beams to suspend cables and other components. As the number of cables inside wind turbine generator sets increases, the overall size of the support beams is gradually increasing, making their transportation, installation, and storage extremely inconvenient. Utility Model Content

[0003] This application provides a support beam, a tower, and a wind turbine generator set, with the aim of reducing the installation size of the support beam.

[0004] An embodiment of the first aspect of this application provides a support beam for a wind turbine generator set. The support beam includes: a connecting assembly for connecting the inner side of the wind turbine generator tower; and a side beam connected to the connecting assembly, wherein the side beam is provided with a plurality of spaced-apart tower accessory connecting portions for connecting tower accessories. The side beam is rotatably connected to the connecting assembly via a first pivot, so that the support beam can switch between an unfolded state and a folded state. In the unfolded state, the side beam extends away from the connecting assembly, and the side beam can rotate around the first pivot toward the connecting assembly to the folded state.

[0005] According to an embodiment of the first aspect of this application, the connecting assembly includes a main beam and a connecting beam. The connecting beam is connected to one side of the main beam, and the end of the connecting beam away from the main beam is used to connect to the inner side of the tower of the wind turbine generator set. The side beam is rotatably connected to the main beam through a first pivot. In the unfolded state, the side beam extends from the main beam in a direction away from the connecting beam, and the side beam can rotate around the first pivot from the side of the main beam away from the connecting beam toward the side where the connecting beam is located to a folded state.

[0006] According to an embodiment of the first aspect of this application, in the unfolded state, the main beam extends along a first direction, the side beam extends along a second direction, the first pivot extends along a third direction, the first direction, the second direction and the third direction intersect each other, and the third direction is parallel to the reference plane defined by the first direction and the second direction.

[0007] According to any of the foregoing embodiments of the first aspect of this application, a connecting portion is further included, which is connected to one end of the main beam. The connecting portion extends along a second direction, and a first pivot is disposed at the end of the connecting portion away from the main beam, so that the side beam is rotatably connected to the main beam through the first pivot and the connecting portion.

[0008] According to any of the foregoing embodiments of the first aspect of this application, a first limiting structure is provided on the main beam and / or the side beam. In the folded state, the side beam can be flipped back to the unfolded state relative to the main beam in the fourth direction. The first limiting structure is used to provide a limit to the side beam to restrict the side beam from continuing to rotate relative to the main beam in the fourth direction.

[0009] According to any of the foregoing embodiments of the first aspect of this application, in the main beam and the side beam, one of them is fixedly connected to a first limiting structure, and the other is provided with a first connecting hole. The first limiting structure is provided with a second connecting hole. In the unfolded state, the side beam and the main beam can be fixedly connected through the first connecting hole and the second connecting hole.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the plane containing the first direction and the second direction is a reference plane, and the first connecting hole and the second connecting hole extend along a direction perpendicular to the reference plane.

[0011] According to any of the foregoing embodiments of the first aspect of this application, a first sleeve is provided at one end of the side beam, and the side beam is sleeved on the first rotating shaft through the first sleeve. A first limiting structure is fixed to the side of the first sleeve away from the side beam. In the unfolded state, the first limiting structure and the main beam abut against each other, and the main beam provides a limiting force to the first limiting structure to restrict the side beam from continuing to rotate relative to the main beam in the fourth direction.

[0012] According to any of the foregoing embodiments of the first aspect of this application, a second sleeve is connected to the end of the main beam facing the side beam, and the second sleeve is sleeved on the first rotating shaft so that the main beam and the first rotating shaft are rotatably arranged relative to each other.

[0013] According to any of the foregoing embodiments of the first aspect of this application, the side beam includes two or more sub-side beams connected sequentially in its extension direction, and the relative positions of two adjacent sub-side beams are adjustable so that the extension length of the side beam is adjustable.

[0014] According to any of the foregoing embodiments of the first aspect of this application, two adjacent sub-side beams are rotatably connected by a second pivot, so that the sub-side beam away from the connecting assembly can rotate toward the connecting assembly.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the extending direction of the first rotating shaft is the same as the extending direction of the second rotating shaft.

[0016] According to any of the foregoing embodiments of the first aspect of this application, in the unfolded state, the main beam extends along a first direction, the side beam extends along a second direction, the first direction and the second direction are located on a reference plane, and the extension direction of the second rotating shaft is perpendicular to the reference plane.

[0017] According to any of the foregoing embodiments of the first aspect of this application, a second limiting structure is further included, disposed on at least one of two adjacent sub-side beams. In the unfolded state, the second limiting structure is used to restrict the sub-side beams from continuing to rotate.

[0018] According to any of the foregoing embodiments of the first aspect of this application, at least two sub-side beams are nested together and relatively movable, so that the side beams are telescopic in their extension direction.

[0019] According to any of the foregoing embodiments of the first aspect of this application, both the connecting beam and the side beam are provided with retaining member interfaces. In the folded state, the retaining member is detachably connected to the retaining member interfaces of the connecting beam and the side beam, so that the support beam is kept in the folded state.

[0020] The second aspect of this application also provides a tower, including the support beam of any of the first aspect embodiments described above.

[0021] An embodiment of the third aspect of this application also provides a wind turbine generator set, including the tower of any of the second aspects of the above embodiments.

[0022] In the support beam provided in this embodiment, the support beam includes a connecting assembly and a side beam. The connecting assembly is used to connect the support beam to the inside of the wind turbine tower. The side beam is provided with a tower accessory connection part, which can be used to clamp cables. The support beam has an unfolded state and a folded state. When the side beam rotates relative to the connecting assembly via a first pivot, the support beam can switch between the unfolded and folded states. When switching from the unfolded state to the folded state, the side beam rotates towards the connecting assembly, thereby reducing the overall space occupied by the support beam in the folded state, facilitating its transportation and storage. Attached Figure Description

[0023] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0024] Figure 1 This is a schematic diagram of a support beam in a folded state, provided in an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of a support beam in a folded state according to another embodiment of this application;

[0026] Figure 3 This is a schematic diagram of a partially exploded structure of a support beam in a folded state, provided in another embodiment of this application;

[0027] Figure 4This is a structural schematic diagram of a support beam in its unfolded state, provided in another embodiment of this application;

[0028] Figure 5 This is a structural schematic diagram of a side beam of a support beam according to another embodiment of this application;

[0029] Figure 6 This application also provides a schematic diagram of the structure of a side beam of a support beam according to another embodiment;

[0030] Figure 7 This is a structural schematic diagram of the side beam of a support beam provided in another embodiment of this application from another perspective;

[0031] Figure 8 This is a structural schematic diagram of a side beam of a support beam provided in another embodiment of this application;

[0032] Figure 9 This is a structural schematic diagram of the side beam of a support beam provided in another embodiment of this application from another perspective;

[0033] Figure 10 This is a schematic diagram of the structure of a side beam of a support beam according to another embodiment of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10. Support beam; 101. Connecting assembly;

[0036] 100. Main beam; 110. Connecting part; 120. Second sleeve; 130. First connecting hole;

[0037] 200. Connecting beam;

[0038] 300, Side beam; 310, Tower accessory connection part; 320, First sleeve; 330, Sub-side beam; 331, Third sleeve; 332, Second bottom plate; 333, Second side plate; 340, Retaining component interface; 350, Reinforcing rib;

[0039] 410. First rotating shaft; 420. First limiting structure; 421. Second connecting hole; 440. Second rotating shaft; 450. Second limiting structure; 451. First limiting plate; 452. Second limiting plate;

[0040] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0041] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0042] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] To better understand this application, the following will be combined with... Figure 1 and Figure 10 The supporting beam 10, the tower, and the wind turbine generator set of the embodiments of this application will be described in detail.

[0045] like Figures 1 to 4As shown, an embodiment of the first aspect of this application provides a support beam 10 for a wind turbine generator set. The support beam 10 includes a connecting assembly 101 and a side beam 300. The connecting assembly 101 is used to connect to the inner side of the tower of the wind turbine generator. The side beam 300 is connected to the connecting assembly 101 and has a plurality of spaced tower accessory connecting portions 310 for clamping cables. The side beam 300 is rotatably connected to the connecting assembly 101 via a first pivot 410, so that the support beam 10 can switch between an unfolded state and a folded state. In the unfolded state, the side beam 300 extends away from the connecting assembly 101, and the side beam 300 can rotate around the first pivot 410 toward the connecting assembly 101 to the folded state.

[0046] In the support beam 10 provided in this embodiment, the support beam 10 includes a connecting assembly 101 and a side beam 300. The connecting assembly 101 is used to connect the support beam 10 to the inner side of the wind turbine tower. The side beam 300 is provided with a tower accessory connecting part 310, which can be used, but is not limited to, for clamping cables. The support beam 10 has an unfolded state and a folded state. When the side beam 300 rotates relative to the connecting assembly 101 via the first pivot 410, the support beam 10 can switch between the folded state and the unfolded state. When switching from the unfolded state to the folded state, the side beam 300 rotates toward the connecting assembly 101, so that in the folded state, the overall space occupied by the support beam 10 can be reduced, which facilitates the transportation and storage of the support beam 10.

[0047] Optionally, the connecting assembly 101 includes a main beam 100 and a connecting beam 200. The connecting beam 200 is connected to one side of the main beam 100. The end of the connecting beam 200 away from the main beam 100 is used to connect to the inner side of the tower of the wind turbine generator. The side beam 300 is rotatably connected to the main beam 100 through a first pivot 410 so that the support beam 10 can be switched between an unfolded state and a folded state. In the unfolded state, the side beam 300 extends from the main beam 100 in a direction away from the connecting beam 200, and the side beam 300 can rotate around the first pivot 410 from the side of the main beam 100 away from the connecting beam 200 toward the side where the connecting beam 200 is located to the folded state.

[0048] Optionally, to more accurately demonstrate the overall structure of the supporting beam 10, only... Figure 4 The location of the tower accessory connection part 310 is shown in the partial diagram.

[0049] In one embodiment of this application, a support beam 10 includes a main beam 100, a connecting beam 200, and side beams 300. The main beam 100 provides primary support, and the connecting beam 200 connects the support beam 10 to the inside of the wind turbine tower. The side beams 300 are provided with tower accessory connecting portions 310, which can be used to clamp cables. The support beam 10 has an unfolded state and a folded state. When the side beams 300 rotate relative to the main beam 100 via a first pivot 410, the support beam 10 can switch between the unfolded and folded states. When transitioning from the unfolded to the folded state, the side beams 300 are positioned so that the side away from the connecting beam 200 of the main beam 100 faces the side facing the connecting beam 200 of the main beam 100. This allows a portion of the side beams 300 to rotate to the side facing the connecting beam 200 of the main beam 100 in the folded state, reducing the overall space occupied by the support beam 10 and facilitating its transportation and storage.

[0050] Optionally, in the folded state, part of the side beam 300 is rotated to the side of the main beam 100 facing the connecting beam 200. For example, in the folded state, the side beam 300 intersects with the main beam 100, with one end of the side beam 300 connected to the main beam 100 on the side of the main beam 100 away from the connecting beam 200, and the free end of the side beam 300 on the side of the main beam 100 facing the connecting beam 200. Compared to the side beam 300 being completely suspended to the side of the main beam 100 away from the connecting beam 200, this reduces the stress on the connecting beam 200, improves the stability of the connection between the support beam 10 and the inner side of the tower, and makes it less likely for the support beam 10 to detach from the tower.

[0051] Optionally, the main beam 100 extends along a first direction X to simplify the structure of the main beam 100. Optionally, the main beam 100 is a channel steel structure and includes a first base plate and first side plates connected to both sides of the first base plate.

[0052] Optionally, two or more connecting beams 200 are connected to the main beam 100, and the two or more connecting beams 200 are spaced apart along the first direction X to improve the stability of the connection between the support beam 10 and the tower.

[0053] Optionally, there may be one or two side beams 300, connected to opposite ends of the main beam 100. Having two side beams 300 facilitates the installation of more tower accessory connection parts 310 and allows for the suspension of more cables on the support beam 10. Optionally, the two side beams 300 may be rotatably mounted in opposite directions to further reduce the overall space occupied by the support beam 10. Optionally, the side beams 300 may be positioned relative to the end of the connecting beam 200 near the main beam 100.

[0054] Optionally, the main beam 100, connecting beam 200, and side beam 300 are all generally rod-shaped to reduce the size of the components within the support beam 10. At least one of the main beam 100, connecting beam 200, and side beam 300 may be made of channel steel to simplify the structure of the support beam 10.

[0055] In some optional embodiments, in the unfolded state, the main beam 100 extends along a first direction X, the side beam 300 extends along a second direction Y, and the first rotating shaft 410 extends along a third direction Z. The first direction X, the second direction Y, and the third direction Z intersect each other, and the third direction Z is parallel to the reference plane defined by the second direction and the first direction.

[0056] In some alternative embodiments, the first direction X, the second direction Y, and the third direction Z intersect each other and are coplanar.

[0057] Optionally, the plane containing the first direction X and the second direction Y is the reference plane.

[0058] In this embodiment, in the unfolded state, the extension directions of the main beam 100, side beam 300, and first rotating shaft 410 are coplanar, or the extension direction of the first rotating shaft is parallel to the reference plane. When the side beam 300 rotates relative to the main beam 100 via the first rotating shaft, the side beam 300 deflects relative to the reference plane towards the main beam 100, and the side beam 300 rotates in a plane perpendicular to the reference plane. When the side beam 300 rotates along the above-mentioned direction to the folded state of the support beam 10, the side beam 300 is less likely to return to the unfolded state along the original path, thus ensuring the stability of the relative position of the side beam 300 and the main beam 100 in the folded state.

[0059] Optionally, the third direction Z and the second direction Y are perpendicular, making it less likely for the side beam 300 to deflect. In the folded and unfolded states, the extension direction of the side beam 300 can be as consistent as possible. For example, after the side beam 300 in the unfolded state rotates 180 degrees around the first pivot 410, the support beam 10 is in the folded state.

[0060] Optionally, in the unfolded state, the angle between the extension direction of the main beam 100 and the extension direction of the side beam 300 can be between 130 degrees and 150 degrees. For example, in the unfolded state, the angle between the extension direction of the main beam 100 and the extension direction of the side beam 300 can be 130 degrees, 135 degrees, 143 degrees, 148 degrees, 150 degrees, etc.

[0061] In these alternative embodiments, when the angle between the extension direction of the main beam 100 and the extension direction of the side beam 300 is within the above-mentioned range in the unfolded state, the overall structure of the support beam 10 in the unfolded state is more adapted to the shape of the tower cross-section.

[0062] Optionally, the first rotating shaft 410 can be directly disposed at one end of the main beam 100. For example, a connecting hole extending in the third direction Z can be provided at one end of the main beam 100, and the first rotating shaft 410 can be rotatably disposed in the connecting hole. Alternatively, an inclined surface extending in the third direction Z can be provided at one end of the main beam 100, and the first rotating shaft 410 can be rotatably disposed on the inclined surface.

[0063] In some alternative embodiments, the support beam 10 further includes a connecting portion 110 connected to one end of the main beam 100. The connecting portion 110 extends along a second direction Y, and a first pivot 410 is disposed at one end of the connecting portion 110 away from the main beam 100, so that the side beam 300 is rotatably connected to the main beam 100 through the first pivot 410 and the connecting portion 110.

[0064] In these optional embodiments, the end of the main beam 100 is provided with a connecting part 110. The connecting part 110 and the side beam 300 in the unfolded state extend in the same direction, which facilitates the side beam 300 and the connecting part 110 to connect with each other and can improve the relative positional stability between the connecting part 110 and the side beam 300.

[0065] Optionally, the connecting part 110 and the main beam 100 can be integrally formed. Alternatively, the connecting part 110 can be fixed to the end of the main beam 100 by welding, bolts, or other methods.

[0066] In some optional embodiments, a first limiting structure 420 is provided on the main beam 100 and / or the side beam 300. In the folded state, the side beam 300 can be flipped back to the unfolded state relative to the main beam 100 in the fourth direction. The first limiting structure 420 is used to provide a limit to the side beam 300 to restrict the side beam 300 from continuing to rotate relative to the main beam 100 in the fourth direction.

[0067] In these optional embodiments, a first limiting structure 420 is provided on the main beam 100 and / or the side beam 300. When the support beam 10 is in the unfolded state, the first limiting structure 420 can provide a limiting force to the side beam 300, restricting the side beam 300 from continuing to rotate relative to the main beam 100 in the fourth direction, that is, restricting the rotation of the side beam 300, so that the support beam 10 can be stably maintained in the unfolded state.

[0068] In some optional embodiments, one of the main beam 100 and the side beam 300 is fixedly connected to a first limiting structure 420, and the other is provided with a first connecting hole 130. The first limiting structure 420 is provided with a second connecting hole 421. In the unfolded state, the side beam 300 and the main beam 100 can be fixedly connected through the first connecting hole 130 and the second connecting hole 421. Optionally, when the main beam 100 is provided with a connecting part 110, the first connecting hole 130 can be provided in the connecting part 110.

[0069] In these optional embodiments, in the unfolded state, the side beam 300 and the main beam 100 can be fixedly connected through the first connecting hole 130 and the second connecting hole 421. For example, connecting bolts can be provided in the first connecting hole 130 and the second connecting hole 421 to connect the main beam 100 and the side beam 300. This not only makes the connection between the main beam 100 and the side beam 300 simple and convenient, but also facilitates disassembly, allowing the support beam 10 to be easily and quickly transformed between the unfolded state and the folded state.

[0070] Optionally, as described above, the plane containing the first direction X and the second direction Y is a reference plane, and the first connecting hole 130 and the second connecting hole 421 extend in a direction perpendicular to the reference plane. When connecting bolts are used to connect the side beam 300 and the main beam 100 in the first connecting hole 130 and the second connecting hole 421, the connecting bolts can extend in a direction perpendicular to the reference plane, which can reduce the stress on the side beam 300 and the main beam 100, reduce the deflection force on the connecting bolts, and improve the service life of the connecting bolts.

[0071] In some optional embodiments, a first sleeve 320 is provided at one end of the side beam 300, and the side beam 300 is sleeved on the first rotating shaft 410 through the first sleeve 320. The first limiting structure 420 is fixed to the side of the first sleeve 320 away from the side beam 300. In the unfolded state, the first limiting structure 420 and the main beam 100 abut against each other, and the main beam 100 provides a limiting force to the first limiting structure 420 to restrict the side beam 300 from continuing to rotate relative to the main beam 100 in the fourth direction.

[0072] In these optional embodiments, the side beam 300 is sleeved on the first rotating shaft 410 via a first sleeve 320. The first sleeve 320 is rotatable relative to the first rotating shaft 410, thereby driving the side beam 300 to rotate. The first limiting structure 420 is, for example, a limiting plate. The first limiting structure 420 is fixed to the side of the first sleeve 320 away from the side beam 300. In the unfolded state, the first limiting structure 420 and the main beam 100 can abut against each other. The main beam 100 provides a limiting force to the first limiting structure 420, making it difficult for the first limiting structure 420 to continue rotating, thereby making it difficult for the first sleeve 320 to continue rotating, and the side beam 300 to continue rotating and remaining in the unfolded state.

[0073] Optionally, when one end of the side beam 300 is provided with the first sleeve 320 and the aforementioned first limiting structure 420, a reinforcing rib 350 is provided on one side of the first limiting structure 420 and the first sleeve 320. The reinforcing rib 350 extends along the second direction Y to improve the structural strength of the first limiting structure 420, thereby improving the limiting ability of the first limiting structure 420.

[0074] In some optional embodiments, a second sleeve 120 is connected to the end of the main beam 100 facing the side beam 300. The second sleeve 120 is sleeved on the first rotating shaft 410, so that the main beam 100 and the first rotating shaft 410 are rotatably disposed relative to each other. Optionally, when the main beam 100 and the side beam 300 are connected to each other, the second sleeve 120 can be disposed at the end of the main beam 100. When the main beam 100 and the side beam 300 are connected to each other through the connecting part 110, the second sleeve 120 can be disposed at the end of the connecting part 110 facing the side beam 300, so that the connecting part 110 is rotatably disposed relative to the first rotating shaft 410 through the second sleeve 120.

[0075] There are various ways to set the side beam 300. For example, the side beam 300 can be rod-shaped and have multiple clamping components distributed at intervals on it.

[0076] In some alternative embodiments, such as Figures 5 to 10 As shown, the side beam 300 includes two or more sub-side beams 330 connected sequentially in its extension direction, and the relative position of two adjacent sub-side beams 330 is adjustable so that the extension length of the side beam 300 is adjustable.

[0077] In these optional embodiments, the extension length of the side beam 300 is adjustable. In the folded state, the extension length of the side beam 300 can be shortened, which can further reduce the space occupied by the support beam 10 in the folded state, making it easier to transport, store and hoist the support beam 10.

[0078] Two adjacent sub-side beams 330 can be connected by relative rotation, movement, extension and retraction, etc., so that the extension length of the side beam 300 is variable.

[0079] In some alternative embodiments, two adjacent sub-side beams 330 are rotatably connected by a second pivot 440, so that the sub-side beam 330 away from the main beam 100 can rotate toward the main beam 100.

[0080] In these alternative embodiments, two adjacent sub-side beams 330 are rotatably connected such that the ends of the sub-side beams 330 away from the main beam 100 can be flipped toward the main beam 100, and at least a portion of the multiple sub-side beams 330 can overlap each other, thereby reducing the overall extension length of the side beam 300.

[0081] Optional, such as Figure 5 As shown, the extension direction of the first rotating shaft 410 is the same as that of the second rotating shaft 440, so that the rotation direction of the side beam 300 relative to the main beam 100 is the same as the rotation direction of the two adjacent sub-side beams 330. This simplifies the structure of the support beam 10, simplifies the stress condition of the side beam 300, and improves the service life of the support beam 10.

[0082] Optionally, the plurality of sub-side beams 330 include a first sub-side beam connected to the main beam 100 and a second sub-side beam connected to the first sub-side beam on the side away from the main beam 100. The number of second sub-side beams can be one or more. When there are multiple second sub-side beams, in the unfolded state, the multiple second sub-side beams are connected sequentially in a direction away from the main beam 100. The first sub-side beams are interconnected with the main beam 100 through a first pivot 410. The second sub-side beams are connected to the first sub-side beams and adjacent second sub-side beams through a second pivot 440. When the extension directions of the first pivot 410 and the second pivot 440 are the same, the space occupied by the multiple sub-side beams 330 in the folded state can be reduced, for example, by stacking one side of the multiple second sub-side beams on the first sub-side beam.

[0083] Furthermore, in this embodiment, when two adjacent sub-side beams 330 are rotatably connected by the second rotating shaft 440, each sub-side beam 330 can be provided with a tower accessory connection part 310, and the positions of the tower accessory connection parts 310 of the multiple sub-side beams 330 will not interfere with each other in the folded state and the unfolded state.

[0084] In some alternative embodiments, such as Figure 1 , Figure 6 and Figure 7 As shown, in the unfolded state, the main beam 100 extends along the first direction X, the side beam 300 extends along the second direction Y, the first direction X and the second direction Y are located in the reference plane, and the extension direction of the second rotating shaft 440 is perpendicular to the reference plane.

[0085] In these optional embodiments, the rotation direction between two adjacent sub-side beams 330 is different from the rotation direction of the side beams 330 as a whole relative to the main beam 100, which can enrich the arrangement of the support beam 10. Moreover, compared with the scheme in which the first rotating shaft 410 and the second rotating shaft 440 extend in the same direction, this application can reduce the thickness of the shortened side beam 300, thereby reducing the overall thickness of the support beam 10 in the folded state.

[0086] In some alternative embodiments, the support beam 10 further includes a second limiting structure 450 disposed on at least one of two adjacent sub-side beams 330. In the unfolded state, the second limiting structure 450 is used to restrict the sub-side beam 330 from continuing to rotate.

[0087] In these optional embodiments, when two adjacent sub-side beams 330 rotate to the unfolded state, the sub-side beams 330 are limited by the second limiting structure 450, which enables the support beam 10 to be stably kept in the unfolded state and improves the support beam 10's ability to support the cable.

[0088] Optionally, the sub-side beam 330 includes a second base plate 332 and two second side plates 333 connected to both sides of the second base plate 332. The second rotating shaft 440 can be connected between the two second side plates 333 to reduce stress concentration on the sub-side beam 330.

[0089] Alternatively, in some other alternative embodiments, such as Figure 8 He Ru Figure 9 As shown, a third sleeve 331 is provided on the second base plate 332. The third sleeves 331 of the two sub-side beams 330 are arranged side by side along the extension direction of the second rotating shaft 440 and sleeved on the second rotating shaft 440, so that the two sub-side beams 330 can be rotatably arranged relative to the second rotating shaft 440 through the third sleeves 331.

[0090] Optionally, the second limiting structure 450 may include a first limiting plate 451, which is fixedly connected to and extends out of the second base plate 332 of one of the two adjacent sub-side beams 330. When one of the two adjacent sub-side beams 330, the one furthest from the main beam 100, rotates in the fourth direction to the unfolded state, in the unfolded state, the first limiting plate 451 and the second base plate 332 of the other sub-side beam abut against each other to provide a limiting force opposite to the fourth direction to the one furthest from the main beam 100, thereby preventing the sub-side beam 330 from over-unfolding due to continued rotation and limiting the unfolding angle of the side beam 300 during rotation. Optionally, the first limiting plate 451 and the second base plate 332 are parallel to each other.

[0091] Optionally, the second limiting structure 450 may further include a second limiting plate 452. The second limiting plate 452 is fixedly connected to and extends out of the second side plate 333 of one of the two adjacent sub-side beams 330. In the unfolded state, the second limiting plate 452 and the second side plate 333 of the other sub-side beam abut against each other. The second limiting plate 452 provides a limiting force to the sub-side beam 330 along the extension direction of the second rotation axis 440 to improve the situation where the sub-side beam 330 is easily damaged under stress. Optionally, the second limiting plate 452 and the second side plate 333 are parallel to each other.

[0092] Optionally, the first limiting plate 451 and the second limiting plate 452 are integrally formed, for example, the first limiting plate 451 and the second limiting plate 452 are intersected and connected in an L-shape.

[0093] In some alternative embodiments, such as Figure 10 As shown, at least two sub-side beams 330 are nested together and relatively movable, so that the side beam 300 is telescopic in its extension direction. By adjusting the relative position of the two sub-side beams 330, so that one sub-side beam 330 moves relative to the other sub-side beam 330, the extension length of the side beam 300 can be adjusted.

[0094] In some optional embodiments, both the connecting beam 200 and the side beam 300 are provided with retaining member interfaces 340. In the folded state, the retaining member is detachably connected to the retaining member interfaces 340 of the connecting beam 200 and the side beam 300, so that the support beam 10 is kept in the folded state. By providing retaining member interfaces 340, the support beam 10 can be stably kept in the folded state and is not easily unfolded, which can reduce the volume of the support beam 10 during transportation and installation, and ensure the stability and safety of the support beam 10 during installation.

[0095] There are various ways to set up the retaining component. For example, the retaining component can be a rope. In the folded state, the rope can be used to tie the side beam 300 to the connecting beam 200 or the main beam 100 so that the support beam 10 remains in the folded state and does not easily come apart. In this case, the retaining component interface 340 can be a through hole, groove, edge, etc., provided in the side beam and / or the connecting beam 200.

[0096] Alternatively, the retaining component can be a connecting bolt. In the folded state, the side beam 300 and the connecting beam 200 intersect, and a connecting bolt is provided at the intersection of the side beam 300 and the connecting beam 200, so that the support beam 10 remains in the folded state and is not easily spread out. In this case, the retaining component interface 340 can be a bolt hole provided in the side beam 300 and the connecting beam 200.

[0097] The second aspect of this application also provides a tower, which includes the support beam 10 of any of the first aspect embodiments described above. Since the tower of this application includes the aforementioned support beam 10, it possesses the beneficial effects of the support beam 10, which will not be elaborated further here.

[0098] Optionally, the support beam 10 is fixed inside the tower by a connecting beam 200 at one end away from the main beam 100.

[0099] The third aspect of this application also provides a wind turbine generator set, including the tower of any of the above embodiments. Since the wind turbine generator set of the present application includes the tower, the wind turbine generator set of the present application has the beneficial effects of the tower, which will not be repeated here.

[0100] Optionally, the wind turbine generator set also includes a tower foundation and a nacelle, which are connected to both ends of the tower. Optionally, blades are also connected to the nacelle.

[0101] Optionally, during the tower fabrication process, the support beam 10 can be first set in a folded state, then the folded support beam 10 can be fixed to the inside of the tower section, and then the tower section with the support beam 10 can be hoisted to form the tower. Finally, the support beam 10 can be set in an unfolded state to facilitate cable suspension.

[0102] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A support beam, characterized in that, The support beam (10) includes: Connection assembly (101) for connecting to the inside of the tower of a wind turbine generator set; A side beam (300) is connected to the connecting assembly (101). The side beam (300) is used to provide a tower accessory connecting part (310), which is used to connect tower accessories. The side beam (300) is rotatably connected to the connecting assembly (101) so that the support beam (10) can switch between an unfolded state and a folded state. In the unfolded state, the side beam (300) extends in a direction away from the connecting assembly (101), and the side beam (300) can rotate toward the connecting assembly (101) to the folded state.

2. The support beam according to claim 1, characterized in that, The connecting assembly (101) includes a main beam (100) and a connecting beam (200). The connecting beam (200) is connected to one side of the main beam (100), and the end of the connecting beam (200) facing away from the main beam (100) is used to connect to the inner side of the tower of the wind turbine generator set. The side beam (300) is rotatably connected to the main beam (100) via a first pivot (410). In the unfolded state, the side beam (300) extends from the main beam (100) in a direction away from the connecting beam (200), and the side beam (300) can rotate around the first pivot (410) from the side of the main beam (100) away from the connecting beam (200) toward the side where the connecting beam (200) is located to the folded state.

3. The supporting beam according to claim 2, characterized in that, In the unfolded state, the main beam (100) extends along the first direction (X), the side beam (300) extends along the second direction (Y), the first pivot (410) extends along the third direction (Z), the first direction (X), the second direction (Y) and the third direction (Z) intersect each other, and the third direction (Z) is parallel to the reference plane defined by the first direction (X) and the second direction (Y).

4. The support beam according to claim 3, characterized in that, It also includes a connecting part (110) connected to one end of the main beam (100), the connecting part (110) extending along the second direction (Y), and the first rotating shaft (410) disposed at one end of the connecting part (110) away from the main beam (100), so that the side beam (300) is rotatably connected to the main beam (100) through the first rotating shaft (410) and the connecting part (110).

5. The support beam according to claim 3, characterized in that, A first limiting structure (420) is provided on the main beam (100) and / or the side beam (300). In the folded state, the side beam (300) can be flipped back to the unfolded state relative to the main beam (100) along the fourth direction. The first limiting structure (420) is used to provide a limit to the side beam (300) to restrict the side beam (300) from continuing to rotate relative to the main beam (100) along the fourth direction.

6. The supporting beam according to claim 5, characterized in that, Of the main beam (100) and the side beam (300), one is fixedly connected to the first limiting structure (420), and the other is provided with a first connecting hole (130). The first limiting structure (420) is provided with a second connecting hole (421). In the unfolded state, the side beam (300) and the main beam (100) can be fixedly connected through the first connecting hole (130) and the second connecting hole (421).

7. The supporting beam according to claim 6, characterized in that, The plane containing the first direction (X) and the second direction (Y) is a reference plane, and the first connecting hole (130) and the second connecting hole (421) extend in a direction perpendicular to the reference plane.

8. The support beam according to claim 5, characterized in that, One end of the side beam (300) is provided with a first sleeve (320), and the side beam (300) is sleeved on the first rotating shaft (410) through the first sleeve (320). The first limiting structure (420) is fixed to the side of the first sleeve (320) away from the side beam (300). In the unfolded state, the first limiting structure (420) and the main beam (100) abut against each other, and the main beam (100) provides a limiting force to the first limiting structure (420) to restrict the side beam (300) from continuing to rotate relative to the main beam (100) in the fourth direction.

9. The support beam according to any one of claims 2 to 8, characterized in that, The end of the main beam (100) facing the side beam (300) is connected to a second sleeve (120), and the second sleeve (120) is sleeved on the first rotating shaft (410) so that the main beam (100) and the first rotating shaft (410) are rotatably arranged relative to each other.

10. The support beam according to any one of claims 2 to 8, characterized in that, Both the connecting beam (200) and the side beam (300) are provided with retaining member interfaces (340). In the folded state, the retaining member is detachably connected to the retaining member interfaces (340) of the connecting beam (200) and the side beam (300) so that the support beam (10) is held in the folded state.

11. The support beam according to claim 1, characterized in that, The side beam (300) includes two or more sub-side beams (330) connected sequentially in its extension direction, and the relative positions of two adjacent sub-side beams (330) are adjustable so that the extension length of the side beam (300) is adjustable.

12. The support beam according to claim 11, characterized in that, Two adjacent sub-side beams (330) are rotatably connected by a second pivot (440) so that the sub-side beam (330) away from the connecting assembly (101) can rotate toward the connecting assembly (101).

13. The support beam according to claim 12, characterized in that, The connecting assembly (101) includes a main beam (100) and a connecting beam (200). The connecting beam (200) is connected to one side of the main beam (100). The end of the connecting beam (200) facing away from the main beam (100) is used to connect to the inner side of the tower of the wind turbine generator set. The side beam (300) is rotatably connected to the main beam (100) through a first rotating shaft (410). The extension direction of the first rotating shaft (410) is the same as the extension direction of the second rotating shaft (440).

14. The support beam according to claim 13, characterized in that, In the unfolded state, the main beam (100) extends along a first direction (X), the side beam (300) extends along a second direction (Y), the first direction (X) and the second direction (Y) are located in a reference plane, and the extension direction of the second rotating shaft (440) is perpendicular to the reference plane.

15. The support beam according to claim 11, characterized in that, It also includes a second limiting structure (450) disposed on at least one of the two adjacent sub-side beams (330), wherein in the unfolded state, the second limiting structure (450) is used to restrict the sub-side beam (330) from continuing to rotate.

16. The support beam according to claim 11, characterized in that, At least two of the sub-side beams (330) are nested together and relatively movable, such that the side beams (300) are telescopic in their extension direction.

17. A tower, characterized in that, Includes the support beam (10) as described in any one of claims 1-16, wherein the connecting assembly (101) is connected to the inner side of the tower.

18. A wind turbine generator set, characterized in that, It includes a tower attachment connection part (310) and a tower as claimed in claim 17, wherein the tower attachment connection part (310) is disposed on the side beam (300).

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