CN109148104A - A kind of transformer drawing screw rod and pulling plate - Google Patents
A kind of transformer drawing screw rod and pulling plate Download PDFInfo
- Publication number
- CN109148104A CN109148104A CN201810860544.3A CN201810860544A CN109148104A CN 109148104 A CN109148104 A CN 109148104A CN 201810860544 A CN201810860544 A CN 201810860544A CN 109148104 A CN109148104 A CN 109148104A
- Authority
- CN
- China
- Prior art keywords
- rod
- fitting
- transformer
- pulling plate
- screw rod
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Bodies (AREA)
Abstract
The invention discloses a kind of transformers with screw rod and pulling plate is drawn, wherein drawing screw rod includes a cylindrical shape body of rod and the fitting that body of rod both ends are arranged in；The body of rod is made of fiberglass rod；Fitting is fixed on rod end, equipped with the external screw thread cooperated with nut.Pulling plate includes a plate strip body of rod and the fitting that body of rod both ends are arranged in；The body of rod is made of fiberglass rod, and both ends width is greater than intermediate body of rod width；Fitting be with the matched half-shell shape of rod end shape, be nested in rod end.The configuration of the present invention is simple, shank portion are nonmetallic materials, and alternating electromagnetic does not generate eddy-current loss off field, do not generate heat, and insulation performance is good, do not cause electric field distortion and shelf depreciation, electrical breakdown hidden danger；When the present invention is arranged on the outside of coil, volume of transformer, save the cost can be reduced.
Description
Technical field
The invention belongs to power transformers, reactor manufacturing field, are related to a kind of with high mechanical strength and insulation performance
Good drawing screw rod and pulling plate.
Background technique
For traditional power transformer manufacturing industry, transformer device structure is continued to optimize, properties of product are promoted and reduces design
Cost, it has also become the major subjects of industry existence, wherein improving field distribution, reducing shelf depreciation is the weight for promoting properties of product
Want content.
Off field, induction forms vortex and produces heterogeneity alternating electromagnetic in the drawing screw rod (or pulling plate) of common iron and steel material quality
Raw eddy-current loss；And although the drawing screw rod or pulling plate of non-magnetic steel production can reduce eddy-current loss, but higher cost；Due to steel
The electric conductivity of iron draws screw rod (or pulling plate) must carry out insulation processing, guarantees enough safe distances, such as processing not with coil
When easily generation discharges, climbs electricity, or even burns equal hidden danger of quality；Meanwhile certain insulation distance cause structure not enough it is compact and
The increase of cost, this problem is more prominent when voltage class is higher.
Summary of the invention
Goal of the invention: aiming at the problems existing in the prior art, the present invention provides that a kind of structure is simple, and insulating properties is good
Screw rod and pulling plate are drawn, eddy-current loss is thoroughly solved and generates, while there is good electric insulation capacity, prevent security risk.
Technical solution: for achieving the above object, a kind of transformer that one aspect of the present invention provides drawing screw rod, including
The one cylindrical shape body of rod and the fitting that the body of rod both ends are set；The body of rod is made of fiberglass rod；The fitting is fixed
In the rod end, equipped with the external screw thread cooperated with nut.
Preferably, the body of rod both ends are provided with the notch being circumferentially arranged symmetrically, the fitting is equipped with and internal diameter
With the matched counterbore of the external diameter of rod body；The fitting covers after rod end, covers the notch, and presss from both sides at notch position
Tightly.
Preferably, the fiberglass rod material is using alkali-free glass fibre synthesis yarn woven fabric as reinforcing material, dipping
Temperature classification is that F grades of solvent-free epoxy resin is formed with pulling moulding process, and tensile strength reaches 1000MPa or more.
Preferably, the body of rod surface is brushed with the lacquer type organic coating of resistance to tidal stencils.
Preferably, the fitting is made of low-carbon alloy steel, after surface progress acid washing phosphorization at zinc-plated or nickel plating anti-corrosion
Reason.
A kind of transformer pulling plate that another aspect of the present invention provides, including a plate strip body of rod and setting are in the bar
The fitting at body both ends；The body of rod is made of fiberglass rod, and both ends width is greater than intermediate body of rod width；The fitting is and the body of rod
The matched half-shell shape of end shape, is nested in the rod end.
Preferably, the body of rod both ends are upside-down triangle shape or T shape.
Preferably, the fiberglass rod material is using alkali-free glass fibre synthesis yarn woven fabric as reinforcing material, dipping
Temperature classification is that F grades of solvent-free epoxy resin is formed with pulling moulding process, and tensile strength reaches 1000MPa or more.
Preferably, the body of rod surface is brushed with the lacquer type organic coating of resistance to tidal stencils.
Preferably, the fitting is made of low-carbon alloy steel or structural carbon steel, it is zinc-plated after surface progress acid washing phosphorization
Or nickel plating preservative treatment；Or it is made of high-strength alloy aluminium or stainless steel.
The utility model has the advantages that compared with prior art, present invention advantage specific as follows: the configuration of the present invention is simple, shank portion are
Nonmetallic materials, alternating electromagnetic do not generate eddy-current loss off field, do not generate heat；Insulation performance of the present invention is good, does not cause electric field abnormal
Become and shelf depreciation, electrical breakdown hidden danger；Tensile strength of the present invention is high, guarantees transformer requirement of mechanical strength；The present invention is heat-resisting etc.
F grades of grade, it is good with transformer (or reactor) oil compatibility, therefore dry-type transformer (or reactor) and oil-immersed transformer (or
Reactor) it is suitable for；When the present invention is arranged on the outside of coil, volume of transformer, save the cost can be reduced.
Detailed description of the invention
Fig. 1 is the drawing screw rod schematic diagram of the embodiment of the present invention 1.
Fig. 2 a is the body of rod schematic diagram of the drawing screw rod of the embodiment of the present invention 1.
Fig. 2 b is the side view of Fig. 2 a.
Fig. 3 a is the fitting schematic diagram of the drawing screw rod of the embodiment of the present invention 1.
Fig. 3 b is the side view of Fig. 3 a.
Fig. 4 a is the schematic diagram of the pulling plate of the embodiment of the present invention 2.
Fig. 4 b is the side view of Fig. 4 a.
Fig. 5 a is the fitting schematic diagram of the pulling plate of the embodiment of the present invention 2.
Fig. 5 b is the side view of Fig. 5 a.
Fig. 6 a is schematic diagram when screw rod being drawn to be used for the use of three-dimensional iron core of the embodiment of the present invention 1.
Fig. 6 b is schematic diagram when screw rod being drawn to be used for the use of plane iron core of the embodiment of the present invention 1.
Fig. 7 is that the pulling plate of the embodiment of the present invention 2 is used for schematic diagram when the use of plane iron core.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention will be further described.
A kind of transformer disclosed by the embodiments of the present invention by 1 body of rod and is arranged at body of rod both ends with screw rod or pulling plate is drawn
2 fittings composition.When the body of rod is pole (i.e. cylindrical body), screw rod is referred to as drawn；The body of rod is plate strip (i.e. flat rectangular
Body) when, referred to as pulling plate.
Embodiment 1
Such as Fig. 1, a kind of transformer drawing screw rod 1 disclosed by the embodiments of the present invention by 1 body of rod 1-1 and is located at the body of rod two
2 fitting 1-2 composition at end.If Fig. 2 a, 2b, the body of rod 1-1 of the drawing screw rod 1 are cylindrical body, outer diameter is Φ d1, is arranged at both ends
There are 4 notch 1-1-1 being circumferentially arranged symmetrically.It is the interior of L1 as Fig. 3 a, 3b, the fitting 1-2 of the drawing screw rod 1 contain depth
The Md2 external screw thread that the counterbore and length that diameter is Φ d1 are L2, the Φ d1 counterbore is to match body of rod 1-1, external screw thread cooperation
Nut collar is to tighten drawing screw rod.
Drawing the fitting 1-2 of screw rod 1 is low-carbon alloy steel making, and 8.8 grades of screw strength, surface is plated after carrying out acid washing phosphorization
The preservative treatments such as zinc, nickel plating.Fitting 1-2 is set circumferentially to be squeezed and deformed tightening and locked bar on four sides with special punching block pressing element when use
Body 1-1.
It draws the body of rod 1-1 of screw rod 1 to be fabricated by fiberglass rod material, i.e., is made using alkali-free glass fibre synthesis yarn woven fabric
For reinforcing material, the solvent-free epoxy resin that temperature classification is F grades is impregnated on professional mold with " pulling molding " technique (vacuum
Pressure injection continuously bakes solid pressure) it forms, tensile strength reaches > 1000MPa.
Embodiment 2
Such as Fig. 4 a, 4b, a kind of transformer pulling plate 2 disclosed by the embodiments of the present invention by 1 body of rod 2-1 and is located at the body of rod
2 fitting 2-2 at both ends are formed.Body of rod 2-1 is plate strip (i.e. flat rectangular body), and both ends are upside-down triangle shape (or T
Shape).Such as Fig. 5 a, 5b, the fitting 2-2 of the pulling plate 2 is the upside-down triangle shape (or T shape) to match with body of rod 2-1, is half-shell
Shape, being nested on body of rod 2-1 enhances the wear resistance of body of rod 2-1；The fitting of pulling plate is low-carbon alloy steel, structural carbon steel, table
The preservative treatments such as zinc-plated, nickel plating after face progress acid washing phosphorization.Fitting can also be manufactured with materials such as high-strength alloy aluminium, stainless steels.
The body of rod 2-1 of pulling plate 2, is fabricated by fiberglass rod material, i.e., is made using alkali-free glass fibre synthesis yarn woven fabric
For reinforcing material, impregnates the solvent-free epoxy resin that temperature classification is F grades and is formed on professional mold with " pulling molding " technique,
Tensile strength reaches > 1000MPa.The lacquer type organic coating of resistance to tidal stencils is brushed on drag link body surface, prevents the moisture absorption.
Fig. 6 a, 6b and Fig. 7 are that the drawing screw rod 1 of above-described embodiment and pulling plate 2 use example schematic, can be applied to dry type change
Depressor (or reactor) is also applied for oil-immersed transformer (or reactor).
Claims (10)
1. a kind of transformer drawing screw rod, which is characterized in that the drawing screw rod includes a cylindrical shape body of rod and is arranged described
The fitting at body of rod both ends；The body of rod is made of fiberglass rod；The fitting is fixed on the rod end, equipped with matching with nut
The external screw thread of conjunction.
2. transformer according to claim 1 drawing screw rod, which is characterized in that the body of rod both ends, which are provided with, is circumferentially in
The notch being arranged symmetrically, the fitting are equipped with and internal diameter and the matched counterbore of the external diameter of rod body；The fitting covers at body of rod end
Behind portion, the notch is covered, and is clamped at notch position.
3. transformer according to claim 1 drawing screw rod, which is characterized in that the fiberglass rod material uses alkali-free glass
Glass fiber synthesizes yarn woven fabric as reinforcing material, impregnates the solvent-free epoxy resin that temperature classification is F grades with pulling moulding process
It forms, tensile strength reaches 1000MPa or more.
4. transformer according to claim 1 drawing screw rod, which is characterized in that the body of rod surface is brushed with the resin of resistance to tidal stencils
Paint.
5. transformer according to claim 1 drawing screw rod, which is characterized in that the fitting is made of low-carbon alloy steel,
Surface carries out zinc-plated or nickel plating preservative treatment after acid washing phosphorization.
6. a kind of transformer pulling plate, which is characterized in that the pulling plate includes a plate strip body of rod and is arranged in the body of rod
The fitting at both ends；The body of rod is made of fiberglass rod, and both ends width is greater than intermediate body of rod width；The fitting be and body of rod end
The matched half-shell shape of portion's shape, is nested in the rod end.
7. transformer pulling plate according to claim 6, which is characterized in that the body of rod both ends are upside-down triangle shape or T
Shape.
8. transformer pulling plate according to claim 6, which is characterized in that the fiberglass rod material uses alkali-free glass
Fiber synthesizes yarn woven fabric and is used as reinforcing material, impregnate temperature classification for F grades of solvent-free epoxy resin with pulling moulding process and
At tensile strength reaches 1000MPa or more.
9. transformer pulling plate according to claim 6, which is characterized in that the body of rod surface is brushed with the resin of resistance to tidal stencils
Paint.
10. transformer pulling plate according to claim 6, which is characterized in that the fitting is by low-carbon alloy steel or carbon
Structural steel is made, and surface carries out zinc-plated or nickel plating preservative treatment after acid washing phosphorization, or with high-strength alloy aluminium or stainless steel
At.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810860544.3A CN109148104A (en) | 2018-08-01 | 2018-08-01 | A kind of transformer drawing screw rod and pulling plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810860544.3A CN109148104A (en) | 2018-08-01 | 2018-08-01 | A kind of transformer drawing screw rod and pulling plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109148104A true CN109148104A (en) | 2019-01-04 |
Family
ID=64798485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810860544.3A Pending CN109148104A (en) | 2018-08-01 | 2018-08-01 | A kind of transformer drawing screw rod and pulling plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109148104A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111145976A (en) * | 2019-11-29 | 2020-05-12 | 河南平高通用电气有限公司 | Current transformer assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202076084U (en) * | 2011-05-23 | 2011-12-14 | 安徽裕宏机电设备有限公司 | Novel pull plate of dry-type transformer |
| CN205303085U (en) * | 2015-11-26 | 2016-06-08 | 河北新华高压电器股份有限公司 | Rigid suspension pin type composite insulator in subway |
| CN206179650U (en) * | 2016-10-20 | 2017-05-17 | 娄底乐立保电力科技有限公司 | Pull plate structure of dry type transformer |
| CN207010230U (en) * | 2017-05-19 | 2018-02-13 | 许继变压器有限公司 | A kind of arc suppression coil |
-
2018
- 2018-08-01 CN CN201810860544.3A patent/CN109148104A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202076084U (en) * | 2011-05-23 | 2011-12-14 | 安徽裕宏机电设备有限公司 | Novel pull plate of dry-type transformer |
| CN205303085U (en) * | 2015-11-26 | 2016-06-08 | 河北新华高压电器股份有限公司 | Rigid suspension pin type composite insulator in subway |
| CN206179650U (en) * | 2016-10-20 | 2017-05-17 | 娄底乐立保电力科技有限公司 | Pull plate structure of dry type transformer |
| CN207010230U (en) * | 2017-05-19 | 2018-02-13 | 许继变压器有限公司 | A kind of arc suppression coil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111145976A (en) * | 2019-11-29 | 2020-05-12 | 河南平高通用电气有限公司 | Current transformer assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |
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| RJ01 | Rejection of invention patent application after publication |