CN2359785Y - Yoke iron clamp device for power transformer - Google Patents
Yoke iron clamp device for power transformer Download PDFInfo
- Publication number
- CN2359785Y CN2359785Y CN 98221832 CN98221832U CN2359785Y CN 2359785 Y CN2359785 Y CN 2359785Y CN 98221832 CN98221832 CN 98221832 CN 98221832 U CN98221832 U CN 98221832U CN 2359785 Y CN2359785 Y CN 2359785Y
- Authority
- CN
- China
- Prior art keywords
- yoke
- bolt
- yoke iron
- power transformer
- iron core
- 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 - Lifetime
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model provides a yoke iron clamp device for a power transformer, which is composed of iron core clamps, draw strings, a bolt, a nut, an insulating part and a fixing plate, wherein, the draw strings are fixed on the iron core clamps on both sides of the yoke iron via the bolt, the nut, the insulating part and the fixing plate. Through screwing the nut, the draw string is pulled by the bolt to be tensed to clamp the yoke iron between the iron core clamps to play the tightening function on the yoke iron. The yoke iron clamp device for a power transformer of the utility model has the characteristics of reasonable design, simple structure, easy installation, strong fastening function, and uniform stress of the yoke iron, and the smooth of the yoke iron is kept.
Description
The utility model relates to a kind of fastening method of power transformer yoke, specifically is exactly power transformer yoke fastener.
In the prior art, the fastening method of power transformer yoke is to adopt set bolt to clamp yoke, its concrete grammar is to open lateral aperture earlier on yoke, iron core folder, yoke is clamped from both sides with the iron core folder, set bolt is passed from the lateral aperture on yoke and the iron core folder, tighten from the set bolt both sides with nut, clamp yoke.Adopt the fastening yoke of this mode, need perforate on yoke, the mechanical movement of perforate has destroyed the planarization of silicon steel sheet, and localised crystal's structure of silicon steel sheet is changed, and the magnetic line of force easily distorts in the distribution of tapping.Yoke and iron core folder discontinuity, the perforate local pressure is strong excessively, easily produces distortion, simultaneously, owing to have a plurality of lateral apertures on the yoke, the performance of yoke is influenced to some extent.
The purpose of this utility model provide a kind of fastening effect stronger, keep the yoke planarization, guarantee the power transformer yoke fastener that yoke is stressed evenly, do not influence the yoke performance.
The purpose of this utility model is achieved in that employing drawstring, bolt, nut, insulating part and the fixed head structure replaces original set bolt and nut structure carries out fastening to yoke.Adopt the method not need perforate on yoke, thereby avoided the influence that yoke caused because of perforate, the transformer yoke is played better fastening effect, guarantee the planarization of the stressed all even yokes of yoke.
Accompanying drawing 1 is the longitudinal profile structural representation of power transformer yoke fastener.
With reference to structure and the making of accompanying drawing to Yoke iron clamp device for power transformer of the present utility model Method is done following detailed description.
Yoke iron clamp device for power transformer of the present utility model is by iron core folder [2], drawstring [3], bolt [5], nut [6], insulating part [7] and fixed head [4] form. The iron of yoke [1] both sides Core folder [2] is fixed on drawstring [3] at the top of yoke [1]. Drawstring [3] two ends respectively are welded with one Bolt [5], the upper welding of the iron core folder [2] of yoke [1] both sides two fixed heads [4], fixed head [4] The center has a centre bore, and the angle of fixed head [4] and vertical direction is α, α angle big Little is 0 °～30 °. Drawstring [3] is that the bolt [5] by the end passes the center on the fixed head [4] The hole is fixed on bolt [5] and drawstring [3] on the iron core folder [2] by insulating part [7] and nut [6] On the fixed head [4].
Embodiment:
Respectively open a square groove on the iron core folder of yoke [1] both sides, the fixed head [4] that has centre bore is welded on the square groove position of iron core folder, the angle of fixed head and vertical direction is α, and the magnitude range at α angle is 0 °～30 °.Weld a bolt respectively at the drawstring two ends, the bolt at drawstring two ends is passed centre bore on the fixed head of both sides respectively, and insulating part on the pad is tightened in bolt on the fixed head with nut, bolt pulling drawstring is tightened it in the time of fastening nut, and the yoke in the middle of the iron core folder is clamped.This structure had both had high-intensity characteristics, guaranteed that again yoke is stressed evenly, kept the planarization of yoke.
Yoke iron clamp device for power transformer of the present utility model is compared with existing technology, and has and establishes Count reasonable, simple in structure, be easy to install, fastening effect is stronger, yoke is stressed evenly, keep The characteristics of yoke planarization have good value for applications.
Claims (3)
1, power transformer yoke fastener, form by iron core folder, drawstring, bolt, nut, insulating part and fixed head, it is characterized in that the drawstring end is welded with bolt, drawstring is to be fixed on the iron core folder of yoke both sides by bolt, nut, insulating part and fixed head.
2, device according to claim 1 is characterized in that by fastening nut, by bolt pulling drawstring it is tightened, and clamps the yoke between the iron core folder.
3, device according to claim 1 is characterized in that fixed head is welded on the iron core folder, and the angle of fixed head and vertical direction is α, and the magnitude range at α angle is 0 °～30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98221832 CN2359785Y (en) | 1998-07-17 | 1998-07-17 | Yoke iron clamp device for power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98221832 CN2359785Y (en) | 1998-07-17 | 1998-07-17 | Yoke iron clamp device for power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2359785Y true CN2359785Y (en) | 2000-01-19 |
Family
ID=33973302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98221832 Expired - Lifetime CN2359785Y (en) | 1998-07-17 | 1998-07-17 | Yoke iron clamp device for power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2359785Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136363A (en) * | 2010-12-16 | 2011-07-27 | 保定天威集团有限公司 | Guide device for taking guide plate out |
| CN101488394B (en) * | 2008-10-20 | 2011-10-26 | 保定天威集团有限公司 | Manufacturing method for transformer iron core drawstring |
| CN102867619A (en) * | 2012-09-25 | 2013-01-09 | 济南济变志亨电力设备有限公司 | Fixed structure of transformer drawstring |
| CN103295757A (en) * | 2013-06-21 | 2013-09-11 | 保定天威保变电气股份有限公司 | Drawing belt fastening method for transformer |
| CN103680854A (en) * | 2013-12-20 | 2014-03-26 | 保定天威保变电气股份有限公司 | High-strength converter transformer core drawstring structure |
-
1998
- 1998-07-17 CN CN 98221832 patent/CN2359785Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488394B (en) * | 2008-10-20 | 2011-10-26 | 保定天威集团有限公司 | Manufacturing method for transformer iron core drawstring |
| CN102136363A (en) * | 2010-12-16 | 2011-07-27 | 保定天威集团有限公司 | Guide device for taking guide plate out |
| CN102867619A (en) * | 2012-09-25 | 2013-01-09 | 济南济变志亨电力设备有限公司 | Fixed structure of transformer drawstring |
| CN103295757A (en) * | 2013-06-21 | 2013-09-11 | 保定天威保变电气股份有限公司 | Drawing belt fastening method for transformer |
| CN103680854A (en) * | 2013-12-20 | 2014-03-26 | 保定天威保变电气股份有限公司 | High-strength converter transformer core drawstring structure |
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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 | ||
| CX01 | Expiry of patent term |