CN201289779Y - Draw plate of large-sized power transformer iron core - Google Patents
Draw plate of large-sized power transformer iron core Download PDFInfo
- Publication number
- CN201289779Y CN201289779Y CNU200820105649XU CN200820105649U CN201289779Y CN 201289779 Y CN201289779 Y CN 201289779Y CN U200820105649X U CNU200820105649X U CN U200820105649XU CN 200820105649 U CN200820105649 U CN 200820105649U CN 201289779 Y CN201289779 Y CN 201289779Y
- Authority
- CN
- China
- Prior art keywords
- tie
- arm
- pulling plate
- iron core
- power transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an iron core pulling plate of a large-scale power transformer, which comprises a pulling plate, a reinforcing plate connected to the lower end of the pulling plate and a pulling screw connected to the upper end of the pulling plate. The iron core pulling plate adopts a low magnetic pulling plate which is divided into multivalve and uniformly-spaced parts to replace a monoblock pulling plate on which a through groove is formed in traditional meaning, thereby realizing multifunction of clamping and hoisting, simplifying the structure, guaranteeing the mechanical strength, intentionally reducing added loss of the pulling plate, and satisfying requirements of users to the utmost extent.
Description
Technical field
The utility model relates to a kind of large-scale power transformer iron core arm-tie.
Background technology
Large-scale power transformer generally adopts pulling plate structure at present.Traditional arm-tie, for guaranteeing enough mechanical strengths and reducing as far as possible perpendicular to arm-tie surface leakage magnetic flux and cause additional eddy current loss, usually the steel plate that has several grooves by a monoblock is made, will be in the manufacturing process by milling groove, weldering two ends stiffener, auger shell pit and hanging axis hole, weldering hanging axis, the processing technology complexity, continuous increase along with the power transformer capacity, improving constantly of electric pressure, transformer core is also constantly developing towards hugeization, and traditional pulling plate structure can not satisfy the requirement of optimum performance.
Summary of the invention
It is little that technical problem to be solved in the utility model provides a kind of additional eddy current loss, can guarantee the iron core chuck strength effective large-scale power transformer iron core arm-tie of handling iron core simultaneously.
The utility model adopts following technical scheme: the utility model comprise stiffener that arm-tie is connected with the arm-tie lower end and be connected with the arm-tie upper end draw screw rod.
The utility model arm-tie adopts two lobes or the above steel plate of two lobes, and the lower end of arm-tie is connected with a stiffener, the corresponding screw rod that draws that connects more than two or two in the upper end of arm-tie.
The utility model good effect is as follows: the utility model is to replace the traditional monoblock arm-tie that has groove with being divided into the equally spaced low magnetic arm-tie of many lobes, realized the unification of clamping hoisting function, designs simplification, the also conscious arm-tie supplementary load loss that reduced satisfy user's requirement to greatest extent when having guaranteed mechanical strength.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model:
Accompanying drawing 3 is the utility model side-looking structural representation.
In the accompanying drawings: 1 stiffener, 2 arm-ties, 3 draw fagging on screw rod, the 4 folder webs, 5.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
The utility model adopts the equidistant arm-tie of distinguish and draws screw-rod structure, reduces the eddy current loss that vertical leakage flux produces at arm-tie when guaranteeing the iron core chuck strength, and makes the handling of iron core easily convenient.
After the utility model is considered leakage flux and iron core folder mechanical strength, arm-tie 2 is designed to two lobes or the low magnetic arm-tie of the division more than two lobes, the above arm-tie 2 of two lobes or two lobes cooperates fastening place to be designed to corresponding two or more to draw screw rod 3 structures with last fagging 5, two or more draw screw rod 3 to be used for the large-scale power transformer lifting as the hanging beam strong point.Reduce the eddy current loss that vertical leakage flux produces at arm-tie when guaranteeing the iron core chuck strength, and make the handling of iron core easily convenient.
Be embodiment of the utility model as shown in Figure 1, 2, 3, arm-tie 2 adopts seven lobe low magnetic steel plates, and the utility model bottom stiffener 1 and seven lobes hang down magnetic arm-tie 2 and top seven to draw screw rod 3 to join welded together.Bottom stiffener 1 reservation perforate cooperates fastening with iron core folder web 4, seven lobes low magnetic arm-tie spacing in middle part is filled with insulating pad, and seven at top draws screw rod 3 to cooperate fastening back as the hanging beam strong point with last fagging 5, behind the folder integral locking, lifts by crane with hanging beam.
Claims (2)
1, a kind of large-scale power transformer iron core arm-tie, it is characterized in that stiffener (1) that it comprises that arm-tie (2) is connected with arm-tie (2) lower end and be connected with arm-tie (2) upper end draw screw rod (3).
2, a kind of large-scale power transformer iron core arm-tie according to claim 1, it is characterized in that described arm-tie (2) adopts two lobes or the above steel plate of two lobes, the lower end of arm-tie (2) is connected with a stiffener (1), and the upper end of arm-tie (2) is corresponding to be connected and draw screw rod (3) more than two or two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820105649XU CN201289779Y (en) | 2008-08-27 | 2008-08-27 | Draw plate of large-sized power transformer iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820105649XU CN201289779Y (en) | 2008-08-27 | 2008-08-27 | Draw plate of large-sized power transformer iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289779Y true CN201289779Y (en) | 2009-08-12 |
Family
ID=40981462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820105649XU Expired - Fee Related CN201289779Y (en) | 2008-08-27 | 2008-08-27 | Draw plate of large-sized power transformer iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201289779Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103827995A (en) * | 2011-09-27 | 2014-05-28 | 西门子公司 | Press frame structure for a transformer |
| CN105976996A (en) * | 2016-06-23 | 2016-09-28 | 山东达驰电气有限公司 | Pull plate for transformer |
-
2008
- 2008-08-27 CN CNU200820105649XU patent/CN201289779Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103827995A (en) * | 2011-09-27 | 2014-05-28 | 西门子公司 | Press frame structure for a transformer |
| CN103827995B (en) * | 2011-09-27 | 2016-08-24 | 西门子公司 | Press frame structure for transformer |
| CN105976996A (en) * | 2016-06-23 | 2016-09-28 | 山东达驰电气有限公司 | Pull plate for transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20130827 |