CN208622529U - Bushing shell for transformer flange - Google Patents
Bushing shell for transformer flange Download PDFInfo
- Publication number
- CN208622529U CN208622529U CN201821168316.1U CN201821168316U CN208622529U CN 208622529 U CN208622529 U CN 208622529U CN 201821168316 U CN201821168316 U CN 201821168316U CN 208622529 U CN208622529 U CN 208622529U
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- Prior art keywords
- flange
- mucilage binding
- connection
- transformer
- bushing shell
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Abstract
The utility model discloses a kind of bushing shell for transformer flanges, including insulator, the mucilage binding flange being sheathed on the insulator, connection flange, connect the fixation device of the mucilage binding flange Yu the connection flange, the mucilage binding flange is distributed with the connection flange in the insulator from top to bottom, the connection flange is up side in gas from lower end surface, the connection flange is side in oil from lower end surface down, the fixed device is installed on from bottom to top in the mucilage binding flange and the connection flange, the fixed device has top and end, the connection flange is fixed on the top, the end is fixed in the mucilage binding flange, the top is exposed to side in oil, side completely cuts off in the end and the gas, bushing shell for transformer flange, facilitate installation, avoid flange installation place ponding.
Description
[technical field]
The utility model relates to send field of power transformation more particularly to a kind of bushing shell for transformer flange.
[background technique]
Early stage power transformer casing, the connection between casing and transformer are no flange arrangement, using claw mode, are led to
Briquetting is crossed to directly bear against on casing insulator.This structure has the disadvantage that insulator is easy cracking, and it is unreliable to seal, and is easy to seep
The disadvantages of leakage, electric field concentrate on tooth pawl position, and casing partial discharge quantity is excessive, difficult to install.With the improvement of product structure, with
Occurs the casing of single flange arrangement afterwards.Improved casing flange structure, which is appointed, so has the disadvantage that porcelain sealing surface is easy to crack,
The problems such as stringent to the requirement of sealing ring decrement, production process difficulty is high, and flange size is bigger than normal, high to installation requirement.
In order to overcome drawbacks described above existing for this structure, the casing designed in industry at present is had using double flange arrangements
Mucilage binding flange and connection flange composition, mucilage binding flange and insulator are connected as an entirety, mucilage binding flange and insulator by adhesive
Between form a seal groove, porcelain sealing surface is designed as inclined-plane, and the power that sealing ring is subject to porcelain sealing surface in compression is divided
It takes off, so that porcelain facing be protected not crack.Design has and pours the threaded hole of dress flanged joint in connection flange, designs in connection flange
There is counterbore corresponding with connection flange threaded hole, is penetrated out of mucilage binding flange counterbore with round end hexagon socket head cap screw and connection flange
It is connected as an entirety, round end hexagon socket head cap screw is sunk in counterbore.An O-ring seal is placed between connection flange and mucilage binding flange
Sealing.Ponding, and the finite thickness of connection flange are easy in the counterbore of the structure mucilage binding flange, screw thread effective depth is limited, spiral shell
The Tightening moment of bolt is not easy too greatly, and the installation space of bolt is limited, and installation also can be more troublesome.
Therefore it provides the problem of a kind of improved bushing shell for transformer flange is this field urgent need to resolve.
[utility model content]
The utility model facilitates installation, avoids flange installation place in view of the above-mentioned problems, provide a kind of bushing shell for transformer flange
Ponding.
To solve the above-mentioned problems, a kind of bushing shell for transformer flange provided by the utility model, including insulator, it is sheathed on institute
State the fixation device of mucilage binding flange on insulator, connection flange, connection the mucilage binding flange and the connection flange, the mucilage binding
Flange is distributed with the connection flange in the insulator from top to bottom, and the connection flange is up side in gas, institute from lower end surface
State connection flange is side in oil from lower end surface down, and the fixed device is installed on the mucilage binding flange and described from bottom to top
In acting flange, the fixed device has top and end, and the connection flange is fixed on the top, and the end is fixed on
In the mucilage binding flange, the top is exposed to side in oil, and side completely cuts off in the end and the gas.
Further, the fixed device is Flat-head internal hexagonal screw.
Further, the top of the Flat-head internal hexagonal screw is butt end, and the end is the end of thread, the butt end
End face be lower than the connection flange end face.
Further, the insulator connects into an entirety by adhesive with the mucilage binding flange.
Further, the mucilage binding flange has seal groove close to one end of the connection flange, pacifies in the seal groove
Equipped with sealing ring, the sealing ring is compressed after the connection flange installation.
Further, the sealing ring is O-ring seal.
Furthermore the bushing shell for transformer flange in the utility model has several advantages that
1. fixed device is fixedly connected when flange and mucilage binding flange, fixed device is installed from bottom to top to mucilage binding flange, so
Posterior fixation devices are threadedly engaged with the mucilage binding flange, since mucilage binding flange thickness itself is thicker, positioned at the screw thread of mucilage binding flange
Depth adjustable range is wider, and fixation is also stronger.
2. mucilage binding flange wherein do not reprocess by side, counterbore is not needed, would not there are problems that ponding on flange.
3. fixed device penetrates side from connection flange oil, fixed device is not limited by a space, and installation will not be done by structure
It relates to, it is easy to operate.
4. the mounting torque of fixed device is without architectural limitation, the occasion that can satisfy larger Tightening moment is used.
5. the end face of fixed device is lower than connection flange end face, the sealing between casing and transformer, fixed dress are not influenced
It sets between mucilage binding flange and connection flange, will not fall off due to product runs and shakes.
[Detailed description of the invention]
Fig. 1 is the bushing shell for transformer flange schematic diagram of the utility model.
[specific embodiment]
It is shown in Figure 1, give bushing shell for transformer flange in the utility model.
Bushing shell for transformer flange includes insulator 2, the mucilage binding flange 3 being sheathed on insulator, connection flange 5, the mucilage binding method
After orchid 3, connection flange 5 are fixed on insulator 2, the insulator is divided into two parts, is faced upward from 5 lower end of connection flange
Gas in side with from side in the oil downwards of 5 lower end of connection flange.Glue is used between the mucilage binding flange 3 and the insulator 2
Mucilage binding flange 3 and insulator 2 are constituted an entirety by mixture 7, and mucilage binding flange 3 has seal groove, institute close to the side of connection flange 5
It states and O-ring seal 6 is installed in seal groove, the O-ring seal 6 seals the seam between the mucilage binding flange and the insulator
Gap compresses O-ring seal after preventing the oil seepage of side in oil, the connection flange 5 from installing.The mucilage binding flange couples with described
Flange is fixedly mounted by Flat-head internal hexagonal screw, and the screw is installed from the connection flange to the mucilage binding method from bottom to top
Orchid 3 is simultaneously threadedly coupled with the mucilage binding flange 3, and the end face of the Flat-head internal hexagonal screw is sunk in the connection flange 5, tack
The end face of soket head cap screw is lower than the end face of the connection flange 5.
Bushing shell for transformer flange has several advantages that in the utility model
1. fixed device is fixedly connected when flange and mucilage binding flange, fixed device is installed from bottom to top to mucilage binding flange, so
Posterior fixation devices are threadedly engaged with the mucilage binding flange, since mucilage binding flange thickness itself is thicker, positioned at the screw thread of mucilage binding flange
Depth adjustable range is wider, and fixation is also stronger.
2. mucilage binding flange wherein do not reprocess by side, counterbore is not needed, would not there are problems that ponding on flange.
3. fixed device penetrates side from connection flange oil, fixed device is not limited by a space, and installation will not be done by structure
It relates to, it is easy to operate.
4. the mounting torque of fixed device is without architectural limitation, the occasion that can satisfy larger Tightening moment is used.
5. the end face of fixed device is lower than connection flange end face, the sealing between casing and transformer, fixed dress are not influenced
It sets between mucilage binding flange and connection flange, will not fall off due to product runs and shakes.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of bushing shell for transformer flange, including insulator (2), the mucilage binding flange (3), the attached method that are sheathed on the insulator (2)
The fixation device (4) of blue (5), connection the mucilage binding flange (3) and the connection flange (5), the mucilage binding flange (3) with it is described
Connection flange (5) is distributed from top to bottom in the insulator, and the connection flange is up side in gas, the attached method from lower end surface
Orchid is side in oil from lower end surface down, which is characterized in that the fixed device is installed on the mucilage binding flange and institute from bottom to top
It states in connection flange (5), the fixed device has top and end, and the top is fixed on the connection flange (5), described
End is fixed in the mucilage binding flange (3), and the top is exposed to side in oil, and side completely cuts off in the end and the gas.
2. bushing shell for transformer flange according to claim 1, which is characterized in that the fixed device is Flat-head internal hexagonal spiral shell
Nail.
3. bushing shell for transformer flange according to claim 2, which is characterized in that the top of the Flat-head internal hexagonal screw is
Butt end, the end are the end of thread, and the end face of the butt end is lower than the end face of the connection flange.
4. bushing shell for transformer flange according to claim 1, which is characterized in that the insulator passes through with the mucilage binding flange
Adhesive connects into an entirety.
5. bushing shell for transformer flange according to claim 1, which is characterized in that the mucilage binding flange is close to the attached method
Blue one end has seal groove, and sealing ring is equipped in the seal groove, compresses the sealing after connection flange (5) installation
Circle.
6. bushing shell for transformer flange according to claim 5, which is characterized in that the sealing ring is O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821168316.1U CN208622529U (en) | 2018-07-23 | 2018-07-23 | Bushing shell for transformer flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821168316.1U CN208622529U (en) | 2018-07-23 | 2018-07-23 | Bushing shell for transformer flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208622529U true CN208622529U (en) | 2019-03-19 |
Family
ID=65706869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821168316.1U Active CN208622529U (en) | 2018-07-23 | 2018-07-23 | Bushing shell for transformer flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208622529U (en) |
-
2018
- 2018-07-23 CN CN201821168316.1U patent/CN208622529U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |