CN217440214U - Transitional connecting mechanism for tower of wind driven generator - Google Patents
Transitional connecting mechanism for tower of wind driven generator Download PDFInfo
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- CN217440214U CN217440214U CN202220935967.9U CN202220935967U CN217440214U CN 217440214 U CN217440214 U CN 217440214U CN 202220935967 U CN202220935967 U CN 202220935967U CN 217440214 U CN217440214 U CN 217440214U
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Abstract
The utility model provides a transitional connecting mechanism of a tower barrel of a wind driven generator, which comprises an upper connecting piece and a lower connecting piece, wherein the upper connecting piece is used for being connected with the bottom of the tower barrel and is provided with a first threaded hole; the lower connecting piece is used for being connected with an upper anchor plate of a foundation, a second threaded hole is formed in the lower connecting piece, and the diameter of the lower connecting piece is larger than that of the upper connecting piece; the lower connecting piece is provided with a first extending part and a second extending part, the first extending part is positioned in the transition cylinder relative to the cylinder wall of the transition cylinder, the second extending part is positioned outside the transition cylinder relative to the cylinder wall of the transition cylinder, and the second threaded hole is formed in the second extending part. The connection between foundations with different diameters and the tower barrel is realized. An effective solution is provided for the connection between the foundation and the tower drum with overlarge diameter difference.
Description
Technical Field
The utility model relates to a connection field of a aerogenerator tower section of thick bamboo, concretely relates to aerogenerator tower section of thick bamboo transition coupling mechanism.
Background
With the increase of the impeller and the capacity of the wind generating set, the diameter of the bottom of the tower barrel is larger and larger, and the diameter of some tower barrels reaches 5m or more. Because a foundation cannot be set according to each experimental unit in the experimental wind field, a foundation larger than the tower drum in size is generally set on the wind field, so that the requirement for as many units as possible can be met. In this case, a transition member is required between the foundation and the tower to implement the installation of the tower.
The larger the size difference between the foundation and the tower drum is, the larger the taper of the transitional connecting mechanism is, and the larger the taper is, the poorer the stress effect is; reducing the taper of the transitional coupling will undoubtedly increase the size of the transitional coupling, and thus its weight, resulting in increased costs. Therefore, a transition connection mechanism with good stress effect and light weight is needed.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present application provides a transitional coupling mechanism for a tower drum of a wind turbine, which can realize connection between foundations with different diameters and the tower drum, and provides an effective solution for connection between the foundations and the tower drum with an excessively large diameter difference.
The wind turbine tower transition connection mechanism that this embodiment provided includes: the upper connecting piece is used for being connected with the bottom of the tower barrel and is provided with a first threaded hole; the lower connecting piece is used for being connected with an upper anchor plate of a foundation, a second threaded hole is formed in the lower connecting piece, and the diameter of the lower connecting piece is larger than that of the upper connecting piece; the lower connecting piece is provided with a first extending part and a second extending part, the first extending part is located in the transition cylinder relative to the cylinder wall of the transition cylinder, the second extending part is located outside the transition cylinder relative to the cylinder wall of the transition cylinder, and the second threaded hole is formed in the second extending part.
The second extension part which is arranged outside the transition cylinder relative to the cylinder wall of the transition cylinder is arranged, so that the bottom diameter of the transition cylinder can be reduced, the difference between the bottom diameter of the transition cylinder and the top diameter of the transition cylinder is reduced, the cylinder wall taper of the transition cylinder is reduced, the stress capacity of the transition cylinder is improved, and the weight of the whole transition connection mechanism is reduced;
the second thread is arranged on the second extending part, so that the connecting mechanism is favorably fixed on the upper anchor plate of the foundation, and the installation is convenient;
through setting up for the section of thick bamboo wall of a transition section of thick bamboo is located the first extension of a transition section of thick bamboo, can provide the space for follow-up installation deep floor, deep floor can not occupy the space of second screw hole, promotes transition section of thick bamboo's atress ability when being convenient for fixed.
In one possible implementation, the second threaded hole is provided in two circles around the circumference of the transition cylinder.
Through the setting, the fixing effect can be improved, and the diameter of the bottom of the transition cylinder is further reduced.
In one possible implementation, the transition cylinder includes an upper cylinder portion and a lower cylinder portion, the upper cylinder portion is connected with the upper connecting piece, and the lower cylinder portion is connected with the lower connecting piece.
In one possible implementation, the height of the upper tubular portion is less than the height of the lower tubular portion.
In one possible embodiment, the upper cylinder part and the lower cylinder part are each formed by at least two rolling plates connected in a circumferential manner.
Through the arrangement, the connecting mechanism can be conveniently transported and then assembled after being transported to the site.
In one possible implementation, the rolled sheets are connected by longitudinal flanges.
The reinforcing rib plates are arranged around the circumference of the transition cylinder, and the plate surface of each reinforcing rib plate is parallel to the radial direction of the transition cylinder.
In one possible implementation, the thickness of the stiffener plate is greater than or equal to 30 mm.
In one possible implementation, the upper connector is located partly inside the barrel with respect to the transition barrel and partly outside the barrel with respect to the transition barrel, and the first threaded hole is located in the part of the upper connector inside the barrel and outside the barrel, respectively.
In one possible implementation, the upper and/or lower connecting member is a flange.
Additional features of the presently disclosed systems and methods will become apparent from the following description and appended claims, taken in conjunction with the accompanying drawings.
Drawings
The individual features and the connections between the individual features of the present application are further explained below with reference to the drawings. The figures are exemplary, some features are not shown to scale, and some of the figures may omit features that are conventional in the art to which the application relates and are not essential to the application, or show additional features that are not essential to the application, and the combination of features shown in the figures is not intended to limit the application. In addition, the same reference numerals are used throughout the specification to designate the same components. The specific drawings are illustrated as follows:
FIG. 1 is a schematic view of a wind turbine tower transition connection mechanism according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a lower connecting member of a tower transition connecting mechanism of a wind turbine provided by an embodiment of the present invention.
Detailed Description
Technical solutions according to embodiments of the present application will be described below with reference to the drawings in the embodiments. Before describing the details of the technical solution, the terms used in the present application will be briefly described.
The terms first, second, third and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, it being understood that specific orders or chronological orders may be interchanged, if appropriate, so that embodiments of the application described herein may be practiced otherwise than as illustrated or described herein.
The term "comprising" as used in the specification and claims should not be construed as being limited to the contents listed thereafter; it does not exclude other elements or steps. It should therefore be interpreted as specifying the presence of the stated features, integers, steps or components as referred to, but does not preclude the presence or addition of one or more other features, integers, steps or components, and groups thereof. Thus, the expression "an apparatus comprising the devices a and B" should not be limited to an apparatus consisting of only the components a and B.
Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment, but may. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments, as would be apparent to one of ordinary skill in the art from this disclosure.
Fig. 1 is the utility model provides a wind driven generator tower section of thick bamboo transition connection mechanism's schematic diagram, as shown in fig. 1, the utility model provides a wind driven generator tower section of thick bamboo transition connection mechanism includes: the tower comprises an upper connecting piece 1 used for being connected with the bottom of a tower barrel, a lower connecting piece 2 used for being connected with an upper anchor plate of a foundation, a transition barrel 3 used for connecting the upper connecting piece 1 and the lower connecting piece 2, and reinforcing rib plates 4 located on the lower connecting piece 2 and the transition barrel 3.
As shown in fig. 1 and 2, the upper connecting member 1 is a circular flange plate, and a first threaded hole 11 for fixing the bottom of the tower is formed in the circular flange plate; the lower connecting piece 2 is a circular flange plate, a second threaded hole 21 for fixing an anchor plate on a foundation is formed in the circular flange plate, the diameter of the lower connecting piece 2 is larger than that of the upper connecting piece 1, the lower connecting piece 2 is provided with a first extending portion 22 and a second extending portion 23, the first extending portion 22 is located in the transition cylinder 3 relative to the cylinder wall of the transition cylinder 3, the second extending portion 23 is located outside the transition cylinder 3 relative to the cylinder wall of the transition cylinder 3, and the second threaded hole 21 is formed in the second extending portion 23.
Through the arrangement, the transition cylinder can be positioned inside the second extending part 23, the diameter and the taper of the transition cylinder 3 (namely the inclination of the cylinder wall of the transition cylinder relative to the mounting surface) are reduced, the size and the weight of the connecting mechanism are further reduced, and the cost is reduced. Reducing the diameter of the transition cylinder 3 further can also reduce the taper of the transition cylinder 3, thereby improving the stress effect of the transition cylinder 3. The arrangement of the first extending part 22 can provide an installation space for the reinforcing rib plate 4, and further improve the stress effect of the transition cylinder 3.
In some embodiments, the reinforcing rib plates are arranged around the circumference of the transition cylinder, the plate surface direction of the reinforcing rib plates 4 is consistent with the radial direction of the transition cylinder 3, the reinforcing rib plates 4 are arranged around the circumference of the transition cylinder 3, and the thickness of the reinforcing rib plates 4 is greater than or equal to 30 mm. In the example shown in fig. 1, there are 40 rib plates, which have a thickness of 40 mm.
In some embodiments, the second threaded hole 21 is provided in two turns around the circumference of the transition barrel 3. Through the arrangement, the connection between the connecting component and the foundation can be more stable, the radial size of the second extending part 23 is increased, and the diameter of the transition cylinder 3 is further reduced, so that the size and the weight of the connecting mechanism are reduced, and the cost is reduced.
In some embodiments, the transition cylinder 3 includes an upper cylinder portion 31 and a lower cylinder portion 32, the upper cylinder portion 31 is connected to the upper connection member 1, and the lower cylinder portion 32 is connected to the lower connection member 2. Wherein, the upper cylinder part 31 and the lower cylinder part 32 can be connected together by welding.
In some embodiments, as shown in FIG. 1, the upper tubular portion 31 has a height that is less than the height of the lower tubular portion 32.
In some embodiments, the upper cylinder portion 31 and the lower cylinder portion 32 are respectively formed by at least two rolling plates which are connected in a surrounding manner, that is, the two rolling plates respectively form a half circular arc of the cylinder portion.
In some embodiments, the rolled sheets are connected by longitudinal flanges. Of course, the present application is not limited thereto, and the rolled sheets may be connected by welding.
In some embodiments, as shown in fig. 1, the upper connector 1 is partially located inside the barrel with respect to the transition barrel 3, partially located outside the barrel with respect to the transition barrel 3, and the first threaded hole 11 is located on the portion of the upper connector located inside the barrel and outside the barrel, respectively.
The second extension part which is arranged outside the transition cylinder relative to the cylinder wall of the transition cylinder is arranged, so that the bottom diameter of the transition cylinder can be reduced, the difference between the bottom diameter of the transition cylinder and the top diameter of the transition cylinder is reduced, the cylinder wall taper of the transition cylinder is reduced, the stress capacity of the transition cylinder is improved, and the weight of the whole transition connection mechanism is reduced;
the second threads are arranged on the second extending part, so that the connecting mechanism is fixed on an upper anchor plate of the foundation conveniently;
through setting up for the section of thick bamboo wall of a transition section of thick bamboo is located the first extension of a transition section of thick bamboo, can provide the space for follow-up installation deep floor, deep floor can not occupy the space of second screw hole, promotes transition section of thick bamboo's atress ability when being convenient for fixed.
It should be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application.
Claims (10)
1. A wind turbine tower transition coupling mechanism, characterized by includes:
the upper connecting piece is used for being connected with the bottom of the tower barrel and is provided with a first threaded hole;
the lower connecting piece is used for being connected with an upper anchor plate of a foundation, a second threaded hole is formed in the lower connecting piece, and the diameter of the lower connecting piece is larger than that of the upper connecting piece;
a transition cylinder for connecting the upper and lower connecting pieces, an
A reinforcing rib plate which is positioned on the inner cylinder wall of the transition cylinder and is connected with the lower connecting piece,
the lower connecting piece is provided with a first extending part and a second extending part, the first extending part is located in the transition cylinder relative to the cylinder wall of the transition cylinder, the second extending part is located outside the transition cylinder relative to the cylinder wall of the transition cylinder, and the second threaded hole is formed in the second extending part.
2. The connection mechanism of claim 1, wherein the second threaded aperture is disposed two revolutions around a circumference of the transition barrel.
3. The coupling mechanism of claim 1, wherein the transition barrel includes an upper barrel portion and a lower barrel portion, the upper barrel portion being coupled to the upper coupling member and the lower barrel portion being coupled to the lower coupling member.
4. The coupling mechanism of claim 3, wherein the upper barrel portion has a height that is less than a height of the lower barrel portion.
5. The coupling mechanism according to claim 3, wherein the upper cylinder portion and the lower cylinder portion are respectively formed by circumferentially coupling at least two rolling plates.
6. The coupling mechanism of claim 5, wherein the rolled sheets are coupled by longitudinal flanges.
7. The connection mechanism according to claim 1, wherein the reinforcing rib plates comprise a plurality of reinforcing rib plates which are arranged around the circumference of the transition cylinder, and the plate surface of each reinforcing rib plate is parallel to the radial direction of the transition cylinder.
8. The coupling mechanism of claim 1, wherein the thickness of the stiffener plate is greater than or equal to 30 mm.
9. The coupling mechanism of claim 1, wherein the upper coupling member is positioned partially within the transition barrel and partially outside the transition barrel relative to the barrel wall, and wherein the first threaded bore is positioned in the upper coupling member at a portion inside the barrel and a portion outside the barrel, respectively.
10. A connection according to any of claims 1-9, wherein the upper and/or lower connection is a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220935967.9U CN217440214U (en) | 2022-04-21 | 2022-04-21 | Transitional connecting mechanism for tower of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220935967.9U CN217440214U (en) | 2022-04-21 | 2022-04-21 | Transitional connecting mechanism for tower of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217440214U true CN217440214U (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220935967.9U Active CN217440214U (en) | 2022-04-21 | 2022-04-21 | Transitional connecting mechanism for tower of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217440214U (en) |
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2022
- 2022-04-21 CN CN202220935967.9U patent/CN217440214U/en active Active
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