CN202084379U - Elastic pressing nail of transformer - Google Patents
Elastic pressing nail of transformer Download PDFInfo
- Publication number
- CN202084379U CN202084379U CN2011201536357U CN201120153635U CN202084379U CN 202084379 U CN202084379 U CN 202084379U CN 2011201536357 U CN2011201536357 U CN 2011201536357U CN 201120153635 U CN201120153635 U CN 201120153635U CN 202084379 U CN202084379 U CN 202084379U
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- transformer
- steel pipe
- butterfly spring
- bolt
- winding
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- Expired - Fee Related
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Abstract
The utility model provides an elastic pressing nail of a transformer. The elastic pressing nail of the transformer comprises a fixing plate for fixing the transformer, wherein a bolt is arranged on the fixing plate; the bolt is inserted into a limiting steel pipe; the limiting steel pipe is fixed on a cushion block; and a cushion ring for pressing the cushion block is arranged on the limiting steel pipe. The elastic pressing nail of the transformer is characterized in that a butterfly spring is sleeved on the limiting steel pipe; a nut for compressing the butterfly spring is arranged at one end of the bolt; and a big cushion ring is arranged at the bottom of the butterfly spring. The elastic pressing nail is quick to process and low in manufacturing cost, can absorb electromagnetic vibration of a winding, and specifically can absorb linear variation of the transformer, which is caused by heat expansion and cold contraction of the winding in a working state, so that the winding is in a basically-stable and axially-pressed state and the running reliability of the transformer is improved.
Description
Technical field
The utility model relates to a kind of elasticity of transformer and presses nail, and the elasticity that is specially adapted to epoxy cast dry transformer is pressed nail.
Background technology
Power transformer is very crucial equipment in electric power system, when transformer during to the load conveying capacity, at the high pressure winding, the low pressure winding all has electric current to flow through, and produce stray field around the winding, electric current in the winding and stray field interact and make the inner electric power that produces of winding, it is special when Circuit Fault on Secondary Transformer is short-circuited fault suddenly, can produce very big electric current in the transformer thereby make winding suffer great electric power, this electric power can be decomposed into axial electric power and the width of cloth to electric power, at axial electric power, the traditional transformer employing draws screw rod to compress or rigidity presses nail to compress mode, these two kinds of modes can not absorb the Transformer Winding electromagnetic shock, transformer noise is bigger, bigger for epoxy cast dry transformer in addition owing to the epoxy resin coefficient of thermal expansion and contraction, make Transformer Winding that bigger linearity change can take place down in working order, conventional rigid axial compression structure can not guarantee that winding is in a kind of relatively stable axial compression state all the time, directly influences the transformer operational reliability.
The utility model content
Technical problem to be solved in the utility model is, overcomes the defective that exists in the prior art, provides a kind of elasticity that is used for transformer to press nail, and the elasticity that is specially adapted to epoxy cast dry transformer is pressed nail.This elasticity presses nail to reach to absorb the winding electromagnetic shock, can absorb the linearity change that transformer expands with heat and contract with cold and causes because of winding down in working order especially, makes winding be in a kind of state of basicly stable axial pressing force, improves the transformer operational reliability.
In order to address the above problem the technical solution of the utility model is such:
A kind of elasticity of transformer is pressed nail, comprise that one is used for fixing the fixed head of transformer, fixed head is provided with a bolt, bolt inserts in the spacing steel pipe, spacing steel pipe is fixed on the cushion block, has a packing ring that compresses cushion block on the spacing steel pipe, is with a butterfly spring on the spacing steel pipe, bolt one end is provided with the nut of compression butterfly spring, and the butterfly spring bottom is provided with a large washer.
Further, spacing thickness of steel pipe is 1-2mm, leaves the 0.5-1mm gap between spacing steel pipe and the bolt, leaves the 0.5-1mm gap between spacing outer wall of steel pipe and the butterfly spring endoporus.
Further, described butterfly spring is the groups of springs of a plurality of butterfly spring mutual superposition, and the height of groups of springs is identical with spacing steel pipe.
The utility model has the advantages that this elasticity presses pin structure to have that processing is fast, low cost of manufacture, and can reach absorption winding electromagnetic shock, can absorb the linearity change that transformer expands with heat and contract with cold and causes because of winding down in working order especially, make winding be in a kind of state of basicly stable axial pressing force, improve the transformer operational reliability.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the assembly structure schematic diagram that transformer elasticity described in the utility model is pressed nail.
Among the figure: 1 bolt, 2 nuts, 3 butterfly springs, 4 spacing steel pipes, 5 large washers, fixed head 6, cushion block 7.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1 according to transformer capacity, distance is selected suitable diameter for use between fixed head 6 and the cushion block 7, the bolt 1 of length, be inserted in spacing steel pipe 4, spacing steel pipe 4 wall thickness 1-2mm, leave the 0.5-1mm gap between spacing steel pipe 4 inwalls and the bolt 1, butterfly spring 3 positive and negative interlocking are one group, spacing steel pipe overcoat 4-8 group butterfly spring 3, leave the 0.5-1mm gap between spacing steel pipe 4 outer walls and butterfly spring 3 endoporus, height after the height of spacing steel pipe 4=4-8 group butterfly spring 3 combinations, spacing steel pipe 4 must be inserted in the endoporus of large washer 5, and leave the 0.5-1mm gap, compress butterfly spring 3 with nut 2 at last.
This elasticity of present embodiment presses nail can reach absorption winding electromagnetic shock, can absorb the linearity change that transformer expands with heat and contract with cold and causes because of winding down in working order especially, make winding be in a kind of state of basicly stable axial pressing force, improve the transformer operational reliability.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. the elasticity of a transformer is pressed nail, comprise that one is used for fixing the fixed head of transformer, fixed head is provided with a bolt, bolt inserts in the spacing steel pipe, and spacing steel pipe is fixed on the cushion block, has a packing ring that compresses cushion block on the spacing steel pipe, it is characterized in that, be with a butterfly spring on the spacing steel pipe, bolt one end is provided with the nut of compression butterfly spring, and the butterfly spring bottom is provided with a large washer.
2. the elasticity of a kind of transformer according to claim 1 is pressed nail, it is characterized in that spacing thickness of steel pipe is 1-2mm, leaves the 0.5-1mm gap between spacing steel pipe and the bolt, leaves the 0.5-1mm gap between spacing outer wall of steel pipe and the butterfly spring endoporus.
3. the elasticity of a kind of transformer according to claim 1 is pressed nail, it is characterized in that described butterfly spring is the groups of springs of a plurality of butterfly spring mutual superposition, and the height of groups of springs is identical with spacing steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201536357U CN202084379U (en) | 2011-05-13 | 2011-05-13 | Elastic pressing nail of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201536357U CN202084379U (en) | 2011-05-13 | 2011-05-13 | Elastic pressing nail of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202084379U true CN202084379U (en) | 2011-12-21 |
Family
ID=45345001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201536357U Expired - Fee Related CN202084379U (en) | 2011-05-13 | 2011-05-13 | Elastic pressing nail of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202084379U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956348A (en) * | 2012-10-29 | 2013-03-06 | 无锡市联达电器有限公司 | Elastic compression nail of transformer |
| CN105180565A (en) * | 2015-10-09 | 2015-12-23 | 合肥美的电冰箱有限公司 | Compressor installing structure and refrigerator provided with same |
| CN106298198A (en) * | 2016-10-14 | 2017-01-04 | 国家电网公司 | A kind of dry-type transformer and cushion block compressing structure thereof |
| CN106763093A (en) * | 2016-12-09 | 2017-05-31 | 徐超 | One kind crosses oil draining bolt |
| CN107631312A (en) * | 2017-09-30 | 2018-01-26 | 苏州海陆重工股份有限公司 | The mounting structure of rapping beam in membrane wall deashing device |
| CN108597810A (en) * | 2018-05-31 | 2018-09-28 | 河南森源电气股份有限公司 | Transformer coil cushion block anti-loose structure |
-
2011
- 2011-05-13 CN CN2011201536357U patent/CN202084379U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956348A (en) * | 2012-10-29 | 2013-03-06 | 无锡市联达电器有限公司 | Elastic compression nail of transformer |
| CN105180565A (en) * | 2015-10-09 | 2015-12-23 | 合肥美的电冰箱有限公司 | Compressor installing structure and refrigerator provided with same |
| CN106298198A (en) * | 2016-10-14 | 2017-01-04 | 国家电网公司 | A kind of dry-type transformer and cushion block compressing structure thereof |
| CN106763093A (en) * | 2016-12-09 | 2017-05-31 | 徐超 | One kind crosses oil draining bolt |
| CN107631312A (en) * | 2017-09-30 | 2018-01-26 | 苏州海陆重工股份有限公司 | The mounting structure of rapping beam in membrane wall deashing device |
| CN107631312B (en) * | 2017-09-30 | 2023-08-01 | 苏州海陆重工股份有限公司 | Mounting structure of vibrating beam in membrane wall ash removal device |
| CN108597810A (en) * | 2018-05-31 | 2018-09-28 | 河南森源电气股份有限公司 | Transformer coil cushion block anti-loose structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Danmin Inventor after: Sha Jianguo Inventor before: Sha Jianguo |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SHA JIANGUO TO: LIU DANMIN SHA JIANGUO |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20170513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |