CN213175930U

CN213175930U - Reverse balance flange

Info

Publication number: CN213175930U
Application number: CN202021567180.9U
Authority: CN
Inventors: 张明熠; 杨州; 吴旻楠; 刘长亮; 毛玉山
Original assignee: Inner Mongolia Of Gimhae New Energy Technology Co ltd; Jiangsu Jinhai New Energy Technology Co ltd
Current assignee: Inner Mongolia Of Gimhae New Energy Technology Co ltd; Jiangsu Jinhai New Energy Technology Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-05-11
Anticipated expiration: 2030-07-31

Abstract

The utility model relates to a tower section of thick bamboo equipment technical field, in particular to reverse balance flange, including first section of thick bamboo, first section of thick bamboo one side is provided with second section of thick bamboo, and the fixed welding of second section of thick bamboo one end has reverse balance flange monomer, and reverse balance flange monomer is provided with the flange shell ring outside, and the fixed welding of reverse balance flange monomer inner wall has the flange board. This reverse balance flange and steel tower section of thick bamboo through setting up the anti-twist frock, and the anti-twist frock effectively guarantees that the reverse balance flange monomer is in the pressurized state all the time, prevents that the reverse balance flange monomer from breaking away, promotes reverse balance flange monomer rigidity, reduces the bending effect of stiffener and flange shell ring inner wall connecting weld, and the anti-twist frock also can significantly reduce the stiffener take place the dislocation and reduce because the reverse balance flange monomer inefficacy and lead to the risk that the fan collapsed.

Description

Reverse balance flange

Technical Field

The utility model relates to a tower section of thick bamboo equipment technical field, in particular to reverse balance flange.

Background

The reverse balance flange is a novel node and can be applied to the connection of a tower cylinder of a wind driven generator under the action of fatigue load; a construction appliance matched with the reverse balance flange, namely a high-strength bolt hydraulic tensioner, is an important technical measure for ensuring the rigid connection of the tower of the wind driven generator. The reverse balance flange is stressed clearly, has enough safe reserve and meets the requirement of fatigue life of 1000 ten thousand times; the reverse balance flange joint has good bending rigidity, the ultimate bearing capacity of the joint can reach more than 1.5 times of the designed load level, and no local instability or fracture phenomenon is observed in the steel pipe within the flange joint range, so that the reverse balance flange joint has high safety reserve.

At present, a large-scale wind power generation tower cylinder is mainly of a conical cylindrical structure, an upper section of cylinder section and a lower section of cylinder section are connected through a welding flange, and the flange is mainly divided into a forging flange and a reverse balance flange. The traditional forged flange requires integral forging and forming, and has the defects of high cost, long period and low production efficiency. And be applied to the reverse balance flange of a wind power generation tower section of thick bamboo, compare with the forging flange and practice thrift the steel material, reduce the processing degree of difficulty, reduced the cost by a wide margin.

However, the prior art devices have the following problems;

the existing reverse balance flange is not welded firmly, so that the reverse balance flange fails, dislocation often occurs between reinforcing ribs easily, connection between two reverse balance flange monomers is dislocated, the reverse balance flange is loosened, and the steel tower barrel is likely to break and collapse.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a reverse balance flange which can effectively improve the problems explained in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a reverse balance flange, includes first section of thick bamboo, first section of thick bamboo one side is provided with second section of thick bamboo, second section of thick bamboo one end fixed welding respectively has reverse balance flange monomer, reverse balance flange monomer is provided with the flange shell ring outside, reverse balance flange monomer inner wall fixed welding has the flange board, the fixed welding of flange board upper surface has the stiffening plate, be provided with anti-twist frock between two stiffening plates, be provided with the bolt hole between two stiffening plates.

As a preferred technical scheme of the utility model, the reverse balance flange monomer exists in pairs, two reverse balance flange monomers are installed in pairs and are constituted a reverse balance flange together, first section of thick bamboo passes through with the second section of thick bamboo a reverse balance flange fixed connection.

As a preferred technical scheme of the utility model, both ends fixed welding respectively are at the flange board outer wall about the stiffening plate, the lateral surface of the stiffening plate of telling and the medial surface welded connection of flange shell ring.

As an optimal technical scheme of the utility model, prevent that it welds with flange board fixed welding to turn round the frock up end, prevent turning round frock lateral surface and partial flange shell ring welded connection, prevent turning round frock both sides face and splice with the stiffening plate lateral wall respectively and be connected, prevent turning round frock lateral surface and the medial surface splice of flange shell ring and be connected.

As a preferred technical scheme of the utility model, the angular circle such as stiffening plate distributes on the reverse balance flange monomer surface, be provided with between the double-phase adjacent stiffening plate and prevent turning round the frock, the stiffening plate, the quantity of preventing turning round the frock are a plurality of respectively, the stiffening plate, the quantity of preventing turning round the frock are with 1: the 1 ratio exists in pairs.

As an optimal technical scheme of the utility model, be provided with the bolt hole between the double-phase adjacent stiffening plate, the quantity of stiffening plate, bolt hole is a plurality of respectively, the quantity of stiffening plate, bolt hole uses 1: the 1 ratio exists in pairs.

As an optimal technical scheme of the utility model, the bolt hole is inside to be provided with the bolt, through bolt fixed connection between two reverse balance flange monomers.

Compared with the prior art, the utility model discloses following beneficial effect has:

through setting up the anti-twist tooling, the anti-twist tooling effectively guarantees that the reverse balance flange monomer is in the pressurized state all the time, prevents that the reverse balance flange monomer from connecting and breaking away, promotes the free rigidity of reverse balance flange, and the anti-twist tooling reduces the bending action of stiffener and flange shell ring inner wall connecting weld, and the anti-twist tooling significantly reduces the stiffener in addition and takes place the probability of dislocation and reduce because the reverse balance flange monomer inefficacy and lead to the risk that the fan collapsed.

Drawings

Fig. 1 is a schematic view of the overall structure of a reverse balance flange of the present invention;

fig. 2 is a schematic view of a three-dimensional structure of a single reverse balance flange of the present invention;

fig. 3 is a schematic view of a partial structure of a single body of a reverse balance flange of the present invention;

fig. 4 is a schematic view of a partial three-dimensional structure of a single reverse balance flange of the present invention;

fig. 5 is a schematic view of a local overlooking structure of a reverse balance flange single body of the present invention.

In the figure: 1. a first barrel section; 2. a second barrel section; 3. a reverse balance flange monomer; 4. a flange shell ring; 5. a flange plate; 6. a stiffening plate; 7. an anti-twist tool; 8. bolt holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, in this embodiment: including first section of

thick bamboo

1, 1 one side of first section of thick bamboo is provided with second section of

thick bamboo

2, and 2 one end of second section of thick bamboo section fixed welding respectively has reverse balance flange monomer 3, and reverse balance flange monomer 3 is provided with flange shell ring 4 outside week, and 3 inner wall fixed welding of reverse balance flange monomer have flange plate 5, and the fixed welding of fixed surface has stiffening plate 6 on flange plate 5, is provided with anti-torsion frock 7 between two stiffening plate 6, is provided with bolt hole 8 between two stiffening plate 6.

Through set up anti-twist tool 7 between every adjacent stiffening plate 6, anti-twist tool 7 effectively guarantees that reverse balance flange monomer 3 is in the pressurized state all the time, prevent that reverse balance flange monomer 3 from connecting and breaking away, promote reverse balance flange monomer 3's rigidity, anti-twist tool 7 reduces the bending action of stiffening plate 6 and flange shell ring 4 inner wall connecting weld simultaneously, anti-twist tool 7 significantly reduces the probability that stiffening plate 6 takes place the dislocation in addition and reduces the risk that leads to the fan to collapse because reverse balance flange monomer 3 loses efficacy.

In the embodiment, the single reverse balance flanges 3 exist in pairs, the two single reverse balance flanges 3 are installed together in pairs to form a reverse balance flange, the first cylinder section 1 and the second cylinder section 2 are fixedly connected through the reverse balance flange, and two ends of the single reverse balance flange 3 are respectively fixedly welded with the first cylinder section 1 and the second cylinder section 2 so as to connect the first cylinder section 1 and the second cylinder section 2; the upper end and the lower end of the stiffening plate 6 are respectively fixedly welded on the outer wall of the flange plate 5, the outer side surface of the stiffening plate 6 is welded with the inner side surface of the flange shell ring 4, and the stiffening plate 6 effectively strengthens the integral rigidity of the reverse balance flange single body 3; the upper end face of an anti-torsion tool 7 is fixedly welded with a flange plate 5, the outer side face of the anti-torsion tool 7 is welded with part of a flange cylinder section 4, the two side faces of the anti-torsion tool 7 are respectively connected with the side walls of a stiffening plate 6 in an adhesive manner, the outer side face of the anti-torsion tool 7 is connected with the inner side face of the flange cylinder section 4 in an adhesive manner, the anti-torsion tool 7 effectively ensures that a reverse balance flange monomer 3 is always in a pressed state, the reverse balance flange monomer 3 is prevented from being disconnected in connection, and the rigidity of the reverse balance flange monomer 3 is improved; the equal-angle circumference of the stiffening plates 6 is distributed on the surface of the reverse balance flange monomer 3, anti-twisting tools 7 are arranged between the two adjacent stiffening plates 6, the number of the stiffening plates 6 and the anti-twisting tools 7 is respectively a plurality of, and the number of the stiffening plates 6 and the anti-twisting tools 7 is 1: 1, the two adjacent stiffening plates 6 have a fixed connection effect on the anti-torsion tool 7, so that the connection stability of the anti-torsion tool 7 is improved; be provided with bolt hole 8 between double-phase adjacent stiffening plate 6, the quantity of stiffening plate 6, bolt hole 8 is a plurality of respectively, and the quantity of stiffening plate 6, bolt hole 8 is with 1: 1 exist in pairs in proportion, and the overall rigidity of the reverse balance flange single body 3 is effectively improved by arranging a plurality of groups of stiffening plates 6; the bolt is arranged in the bolt hole 8, the two reverse balance flange single bodies 3 are fixedly connected through the bolt, the two reverse balance flange single bodies 3 are connected through the bolt in the bolt hole 8, and the connection stability of the whole reverse balance flange single bodies 3 is improved by setting a plurality of groups of bolt connections.

The utility model discloses a theory of operation and use flow: when the flange joint is used, the end faces of the flange shell sections 4 of the two reverse balance flange single bodies 3 are firstly butted, the axis positions of the bolt holes 8 are aligned, the two reverse balance flange single bodies 3 are fixedly connected through bolts arranged in the bolt holes 8, then the other end face of the flange shell section 4 is butted with one end face of the second shell section 2 for fixed welding, and after the welding is completed, the welding is continued to be butted with one end face of the first shell section 1 for welding, so that the fixed connection between the first shell section 1 and the second shell section 2 is realized.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A counter balance flange, characterized in that: including first section of thick bamboo (1), first section of thick bamboo (1) one side is provided with second section of thick bamboo section (2), second section of thick bamboo section (2) one end fixed welding respectively has reverse balance flange monomer (3), reverse balance flange monomer (3) are provided with flange shell ring (4) outside week, reverse balance flange monomer (3) inner wall fixed welding has flange board (5), fixed surface welding has stiffening plate (6) on flange board (5), two be provided with between stiffening plate (6) and prevent twisting frock (7), two be provided with bolt hole (8) between stiffening plate (6).

2. A counter balance flange according to claim 1 wherein: the reverse balance flange single bodies (3) exist in pairs, the two reverse balance flange single bodies (3) are installed together in pairs to form a reverse balance flange, and the first cylinder section (1) and the second cylinder section (2) are fixedly connected through the reverse balance flange.

3. A counter balance flange according to claim 1 wherein: the upper end and the lower end of the stiffening plate (6) are respectively fixedly welded on the outer wall of the flange plate (5), and the outer side surface of the stiffening plate (6) is welded with the inner side surface of the flange shell ring (4).

4. A counter balance flange according to claim 1 wherein: prevent that it welds with flange board (5) fixed welding to turn round frock (7) up end, prevent turning round frock (7) lateral surface and partial flange shell ring (4) welded connection, prevent turning round frock (7) both sides face and splice with stiffening plate (6) lateral wall respectively and be connected, prevent turning round frock (7) lateral surface and the medial surface of flange shell ring (4) and splice and be connected.

5. A counter balance flange according to claim 1 wherein: the equal-angle circumference of the stiffening plates (6) is distributed on the surface of the reverse balance flange monomer (3), the stiffening plates (6) are adjacent to each other, anti-twisting tools (7) are arranged between the stiffening plates (6), the number of the stiffening plates (6) and the number of the anti-twisting tools (7) are respectively a plurality of, and the number of the stiffening plates (6) and the anti-twisting tools (7) is 1: the 1 ratio exists in pairs.

6. A counter balance flange according to claim 1 wherein: two adjacent be provided with bolt hole (8) between stiffening plate (6), the quantity of stiffening plate (6), bolt hole (8) is a plurality of respectively, the quantity of stiffening plate (6), bolt hole (8) is with 1: the 1 ratio exists in pairs.

7. A counter balance flange according to claim 1 wherein: bolts are arranged in the bolt holes (8), and the two reverse balance flange single bodies (3) are fixedly connected through the bolts.