CN211016673U - Insulating structure of oil-immersed transformer case lid and folder - Google Patents
Insulating structure of oil-immersed transformer case lid and folder Download PDFInfo
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- CN211016673U CN211016673U CN201922061751.5U CN201922061751U CN211016673U CN 211016673 U CN211016673 U CN 211016673U CN 201922061751 U CN201922061751 U CN 201922061751U CN 211016673 U CN211016673 U CN 211016673U
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Abstract
The utility model relates to an insulating structure of oil-immersed transformer case lid and folder belongs to transformer equipment technical field, including the transformer box, be equipped with the iron core post in the transformer box, transformer box upper end is equipped with the case lid fixed with transformer box looks bolted connection, is equipped with between case lid and iron core post and cup joints fixed folder insulation coupling assembling with iron core post looks inlay formula. The clamp insulation connection assembly comprises a channel steel clamp, a connection support plate is arranged between the channel steel clamp and the box cover, a hanging plate which is an integrated welding mechanism with the connection support plate is arranged between the connection support plate and the connection support plate, a plurality of bolts penetrating into the channel steel clamp are arranged on the hanging plate, a thick insulation paper plate which is fixedly sleeved with the bolts is arranged between the bolts and the hanging plate, and a plurality of locking nuts which are in threaded sleeve joint with the bolts are arranged in the channel steel clamp. Has the characteristics of firm structure, difficult deformation, compact structure and long service life. Reduce the fit-up gap for the cooperation is more accurate, improves overall structure intensity reliability.
Description
Technical Field
The utility model relates to a transformer equipment technical field, concretely relates to oil-immersed transformer case lid and insulating structure of folder.
Background
General folder of low capacity oil-immersed transformer all passes through oil tank indirect ground connection, along with national grid and user's attention to transformer quality requirement, the user also need measure transformer core and folder insulation resistance to ground, for convenient measurement, iron core and folder all need be drawn forth alone, and low capacity oil-immersed power transformer adopts the channel-section steel preparation because of the folder, because of the channel-section steel specification and dimension is fixed, the less easy deformation of thickness dimension and inner wall have the inclination.
The transformer is a common device in a power system, in the prior art, a transformer clamping structure generally comprises a transformer clamping piece and a plurality of support plates arranged on the clamping piece, and then a lead wood piece is fixed on the support plates.
Disclosure of Invention
The utility model discloses there is the structure among the main prior art of solving firm inadequately, easy deformation and the big not enough of fit-up gap, provides an oil-immersed transformer case lid and the insulating structure of folder, and it has characteristics firm in structure, non-deformable, compact structure and long service life. Reduce the fit-up gap for the cooperation is more accurate, improves overall structure intensity reliability.
The above technical problem of the present invention can be solved by the following technical solutions:
the utility model provides an oil-immersed transformer case lid and insulating structure of folder, includes the transformer box, the transformer box in be equipped with the iron core post, transformer box upper end be equipped with transformer box looks bolted connection fixed case lid, case lid and iron core post between be equipped with and cup joint fixed folder insulation connection subassembly with iron core post looks inlay type. The insulating coupling assembling of folder include the channel-section steel folder, channel-section steel folder and case lid between be equipped with joint support board, joint support board and joint support inter-plate be equipped with the hanger plate that is integrated welding mechanism with joint support board, the hanger plate on be equipped with a plurality of bolts that run through to the channel-section steel folder in, bolt and hanger plate between be equipped with and cup joint fixed thick insulating paper board mutually with the bolt, the channel-section steel folder in be equipped with a plurality of lock nuts that cup joint with bolt looks screw thread formula.
Preferably, a nylon insulating tube sleeved with the bolt is arranged in the hanging plate, and a plurality of thin insulating paper boards sleeved with the bolt are arranged between the hanging plate and the channel steel clamping piece. The number of the thin insulating paper boards can be finely adjusted according to the gap error, and meanwhile, the thin insulating paper boards cannot be softened and become brittle in oil, so that the reliability of the overall structural strength can be ensured.
Preferably, reinforcing rib plates which are fixedly welded with the channel steel clamping pieces in an embedded mode are arranged on two sides of the bolt. The reinforcing rib plate increases the structural strength of the channel steel clamping piece, so that the clamping piece is not easy to deform in the hoisting process of the transformer.
Preferably, a square inclined washer which is sleeved with the bolt and is attached to the inner wall of the channel steel clamping piece is arranged between the locking nut and the channel steel clamping piece. The square inclined washer enables the channel steel clamping piece and the box cover to be smooth and seamless when in bolted connection.
Preferably, a thick washer in sleeved and pressed connection with the bolt is arranged between the bolt and the thick insulating paperboard.
Preferably, the box cover is provided with a plurality of lifting lug plates integrally welded with the box cover in a vertical structure. The lifting lug plate is used for being fixed by a chain or an iron hook, and is convenient to lift.
Preferably, a radiator which is fixedly connected with the transformer box body through screws and is communicated out of the transformer box body is arranged between the iron core column and the transformer box body.
The utility model discloses can reach following effect:
the utility model provides an insulating structure of oil-immersed transformer case lid and folder compares with prior art, has sound construction, non-deformable, compact structure and long service life's characteristics. Reduce the fit-up gap for the cooperation is more accurate, improves overall structure intensity reliability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic front view of the clip insulating connection assembly of the present invention.
Fig. 3 is a side view schematic diagram of the clip insulating connection assembly of the present invention.
In the figure: the transformer box comprises a transformer box body 1, a radiator 2, a box cover 3, a clamp insulating connecting assembly 4, a lifting lug plate 5, an iron core column 6, a connecting support plate 7, a bolt 8, a thick gasket 9, a thick insulating paper plate 10, a nylon insulating pipe 11, a hanging plate 12, a thin insulating paper plate 13, a square inclined gasket 14, a reinforcing rib plate 15, a locking nut 16 and a channel steel clamp 17.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): as shown in fig. 1, 2 and 3, an insulating structure between a tank cover and a clamp of an oil-immersed transformer includes a transformer tank 1, an iron core column 6 is arranged in the transformer tank 1, and a heat sink 2 which is fixed to the transformer tank 1 by screws and is communicated with the transformer tank 1 is arranged between the iron core column 6 and the transformer tank 1. The upper end of the transformer box body 1 is provided with a box cover 3 which is fixedly connected with the transformer box body 1 through bolts, and the box cover 3 is provided with 4 lifting lug plates 5 which are integrally welded with the box cover 3 in a vertical structure. And a clamping piece insulating connecting component 4 which is fixedly sleeved with the iron core column 6 in a clamping manner is arranged between the box cover 3 and the iron core column 6. The clamp insulation connection assembly 4 comprises a channel steel clamp 17, a connection support plate 7 is arranged between the channel steel clamp 17 and the box cover 3, a hanging plate 12 which is an integrated welding mechanism with the connection support plate 7 is arranged between the connection support plate 7 and the connection support plate 7, 16 bolts 8 penetrating into the channel steel clamp 17 are arranged on the hanging plate 12, and reinforcing rib plates 15 embedded in the channel steel clamp 17 and fixed in a welded mode are arranged on two sides of each bolt 8. A thick insulating paper board 10 which is fixedly sleeved with the bolt 8 is arranged between the bolt 8 and the hanging plate 12, and a thick gasket 9 which is tightly connected with the bolt 8 in a sleeved mode is arranged between the bolt 8 and the thick insulating paper board 10. 2 locking nuts 16 which are in threaded sleeve joint with the bolts 8 are arranged in the channel steel clamping piece 17. A square inclined washer 14 which is sleeved with the bolt 8 and is attached to the inner wall of the channel steel clamping piece 17 is arranged between the locking nut 16 and the channel steel clamping piece 17. A nylon insulating pipe 11 sleeved with the bolt 8 is arranged in the hanging plate 12, and 7 thin insulating paper plates 13 sleeved with the bolt 8 are arranged between the hanging plate 12 and the channel steel clamping piece 17.
In conclusion, the oil-immersed transformer box cover and clamping piece insulation structure has the characteristics of firm structure, difficult deformation, compact structure and long service life. Reduce the fit-up gap for the cooperation is more accurate, improves overall structure intensity reliability.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without deviating from the basic characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In conclusion, the above description is only the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (7)
1. The utility model provides an oil-immersed transformer case lid and insulating structure of folder, includes transformer box (1), transformer box (1) in be equipped with core leg (6), transformer box (1) upper end be equipped with fixed case lid (3) of transformer box (1) looks bolted connection, its characterized in that: a clamping piece insulation connecting assembly (4) which is fixedly sleeved with the iron core column (6) in a clamping and embedding manner is arranged between the box cover (3) and the iron core column (6); folder insulation connection subassembly (4) include channel-section steel folder (17), channel-section steel folder (17) and case lid (3) between be equipped with joint support board (7), joint support board (7) and joint support board (7) between be equipped with hanger plate (12) that are integrated welding mechanism with joint support board (7), hanger plate (12) on be equipped with a plurality of bolts (8) that run through to channel-section steel folder (17) in, bolt (8) and hanger plate (12) between be equipped with and cup joint thick insulating board (10) fixed with bolt (8) mutually, channel-section steel folder (17) in be equipped with a plurality of lock nut (16) that cup joint with bolt (8) threaded mutually.
2. The oil-filled transformer tank cover and clamp insulating structure according to claim 1, characterized in that: the steel cable hanger is characterized in that a nylon insulating tube (11) which is sleeved with the bolt (8) is arranged in the hanging plate (12), and a plurality of thin insulating paper plates (13) which are sleeved with the bolt (8) are arranged between the hanging plate (12) and the channel steel clamping piece (17).
3. The oil-filled transformer tank cover and clamp insulating structure according to claim 1, characterized in that: and reinforcing rib plates (15) which are embedded and welded and fixed with the channel steel clamping piece (17) are arranged on two sides of the bolt (8).
4. The oil-filled transformer tank cover and clamp insulating structure according to claim 1, characterized in that: and a square inclined washer (14) which is sleeved with the bolt (8) and is attached to the inner wall of the channel steel clamping piece (17) is arranged between the locking nut (16) and the channel steel clamping piece (17).
5. The oil-filled transformer tank cover and clamp insulating structure according to claim 1, characterized in that: and a thick gasket (9) which is in sleeve joint type compression connection with the bolt (8) is arranged between the bolt (8) and the thick insulating paperboard (10).
6. The oil-filled transformer tank cover and clamp insulating structure according to claim 1, characterized in that: the box cover (3) is provided with a plurality of lifting lug plates (5) which are integrally welded with the box cover (3) in a vertical structure.
7. The oil-filled transformer tank cover and clamp insulating structure according to claim 1, characterized in that: and a radiator (2) which is fixedly connected with the transformer box body (1) through screws and communicated out of the transformer box body (1) is arranged between the iron core column (6) and the transformer box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922061751.5U CN211016673U (en) | 2019-11-26 | 2019-11-26 | Insulating structure of oil-immersed transformer case lid and folder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922061751.5U CN211016673U (en) | 2019-11-26 | 2019-11-26 | Insulating structure of oil-immersed transformer case lid and folder |
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| Publication Number | Publication Date |
|---|---|
| CN211016673U true CN211016673U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922061751.5U Active CN211016673U (en) | 2019-11-26 | 2019-11-26 | Insulating structure of oil-immersed transformer case lid and folder |
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| Country | Link |
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| CN (1) | CN211016673U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112382461A (en) * | 2020-11-12 | 2021-02-19 | 保定天威保变电气股份有限公司 | Connecting structure and method for vibration damping and noise reduction of transformer body and oil tank cover |
-
2019
- 2019-11-26 CN CN201922061751.5U patent/CN211016673U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112382461A (en) * | 2020-11-12 | 2021-02-19 | 保定天威保变电气股份有限公司 | Connecting structure and method for vibration damping and noise reduction of transformer body and oil tank cover |
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