CN1285596A - Composite electric insulator core bar and making technology thereof - Google Patents
Composite electric insulator core bar and making technology thereof Download PDFInfo
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- CN1285596A CN1285596A CN 99116805 CN99116805A CN1285596A CN 1285596 A CN1285596 A CN 1285596A CN 99116805 CN99116805 CN 99116805 CN 99116805 A CN99116805 A CN 99116805A CN 1285596 A CN1285596 A CN 1285596A
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- glass fiber
- fiber bundle
- wedge shape
- plug
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Abstract
The present invention relates to an improvement on core rod structure of composite insulator used as conductor and support frame in power line system and its manufacturing process. Two ends of said core rod are made into the dovetail form, and the included angle gamma of the dovetail form is less than 90 deg.. Its manufacturing process includes the following two methods: one of them can directly use glass fibre bundle to wind into core rod whose two ends are made into dovetail form, another can prefabricate devetail form skeleton, then the skeleton is winded with glass fibre bundle, then the above-mentioned obtained core rod can be impregnated with epoxy resin or other insulating material, heated and solidified so as to obtain the invented core rod.
Description
The present invention is to being applied in the electrical power trans mission/distribution system as the improvement of the structure of the composite electric insulator core bar of electric conductor and support and the manufacturing process of plug thereof.
At present, as the composite electric insulator core bar of electric conductor and support, its structure is a cylinder in electrical power trans mission/distribution system.Manufacturing process is, adopt glass fiber bundle to soak epoxy resin after, heat to 180 ℃, and from the mould of certain pore size, pull out the fiberglass rod that is prefabricated into certain diameter, be sawn into the length that needs again.This fiberglass rod is to use as the plug of composite insulator, superscribes silicone rubber sleeve at the middle part of fiberglass rod, and during application, this composite insulator two ends connect support and electric conductor respectively.For making the work of composite insulator two ends firm, plug will adopt wedge structure in the end; Promptly cut the opening of certain-length along center line, the wedge metal piece be pressed in the opening at the two ends of fiberglass rod, make the plug two ends form in the wedge structure.The composite insulator of this structure owing to rive in its plug two ends, has slight crack to produce on the plug, caused the injury of plug, and its end mechanical strength is reduced significantly, can the generation problem in the use.
The objective of the invention is, overcome the shortcoming of above-mentioned composite electric insulator core bar structure, a kind of composite electric insulator core bar of new construction is provided, and the manufacturing process of this plug is provided, make this plug increase substantially the mechanical strength of insulator.
The object of the present invention is achieved like this.Composite electric insulator core bar 1 constitutes an integral body by glass fiber bundle 2, and the plug shape is that two ends are wedge shape; Wedged gap γ＜90 °.The manufacturing process of this composite electric insulator core bar is, glass fiber bundle is twined back and forth, and the shape two ends that make its formation are that wedge shape gets final product.With epoxy resin or other insulating material dipping, under the normal pressure, heat 100-200 ℃ is solidified into the glass fibre plug that two ends are wedge shape to integral body again.Or in advance impregnated material is coated on the glass fiber bundle, twine glass fiber bundle again, afterwards integrally curing again.
The structure of composite electric insulator core bar 1, also can form by two prefabricated wedge shape skeletons 4 of onesize rigidity and glass fiber bundle 2 whole, wedged gap γ＜90 °, the sphenoid chord position is in the two ends of plug.Its manufacturing process is, a prefabricated steel is arranged, and two gravures are arranged on the steel plate, and gravure is a wedge shape; With two onesize shapes and the identical prefabricated wedge shape skeleton of gravure on the steel plate, be placed in two gravures on the prefabricated steel, with glass fiber bundle from an end ring of wedge shape skeleton around, move towards the other end along the plug axis; Walk around the other end of wedge shape skeleton, walk back along the plug axis, circulation is twined and is distributed repeatedly; With epoxy resin or other insulating material dipping, under the normal pressure, heating 100-200 ℃ is solidified into the glass fibre plug that two ends are wedge shape again.Or in advance impregnated material is coated on the glass fiber bundle, twine glass fiber bundle again, solidify again afterwards.Around wedge shape the time, glass fiber bundle can be lived by binding ring 3 bundles with glass fiber bundle; Be glass fiber bundle when plug axis trend is twined back and forth, all will pass binding ring.Be convenient to the constraint of glass fiber bundle like this.
The manufacturing process of composite electric insulator core bar, can also glass fiber bundle from wedge shape skeleton 4 one end ring around, when the plug axis moves towards the other end, glass fiber bundle is disconnected, walk around the wedge shape of the other end, when the plug axis walks back, again glass fiber bundle is disconnected again; Circulation is twined and is distributed, disconnects repeatedly.Afterwards, integrally curing.
The manufacturing process of composite electric insulator core bar, the curing of plug can also be carried out under the condition of exerting pressure.Pressure is greater than 0.1Mpa, heats 100-200 ℃.
The manufacturing process of composite electric insulator core bar, the curing of plug can also be carried out under vacuum state.Vacuum degree will be higher than 1 * 10
-1Holder.Heat 100-200 ℃.
The manufacturing process of composite electric insulator core bar, the curing of plug can also be carried out under the vacuum pressed state.Pressure is greater than 0.1Mpa; Vacuum degree will be higher than 1 * 10
-1Holder.Heat 100-200 ℃.
The present invention is owing to changed the structure of plug, and plug is an overall structure, does not have the slight crack of generation on it, and the intensity of plug is strengthened greatly.Its manufacturing process no longer comes to harm plug itself.With the composite insulator that the plug of this structure is made, self mechanical strength increases substantially, thereby improves electromechanical properties, has prolonged the useful life of composite insulator, uses safer reliably.Adopt vacuum, pressing technology, can make between the glass fiber bundle closelyr, be difficult for the moisture absorption, the plug volume-diminished has been saved rubber protective sleeve and annex material thereof.
The present invention is provided by following examples and accompanying drawing thereof.
1 plug, 2 glass fiber bundles, 3 binding rings, 4 wedge shape skeletons, 5 metal-wares, 6 insulating sleeves.
Accompanying drawing 1 is a kind of mandrel structure schematic diagram.
Accompanying drawing 2 is second kind of mandrel structure schematic diagram.
Accompanying drawing 3 is the third mandrel structure schematic diagrames.
Accompanying drawing 4 is composite insulator structural representations of using plug.
Embodiment 1: see accompanying drawing 1, accompanying drawing 4.
The structure of composite electric insulator core bar 1 is made up of two prefabricated wedge shape skeletons 4 of onesize rigidity and glass fiber bundle 2, and wedge shape skeleton angle γ＜90 ° is positioned at the two ends of plug.Its manufacturing process is, a prefabricated steel is arranged, and two gravures are arranged on the steel plate, and gravure is a wedge shape; With two onesize shapes and the identical prefabricated wedge shape skeleton 4 of gravure on the steel plate, be placed in two gravures on the prefabricated steel, with glass fiber bundle from an end wedge shape skeleton around, move towards the other end along the plug axis, walk around the wedge shape skeleton of the other end, walk back along the plug axis, circulation is twined and is distributed repeatedly again; Integral body is used epoxy resin impregnated again, and under the normal pressure, heating 120 ℃ is solidified into the glass fibre plug that two ends are wedge shape.Around the wedge shape skeleton time, the glass fibre card can be lived by binding ring 3 bundles with glass fiber bundle; Be glass fiber bundle when plug axis trend is twined back and forth, all will pass binding ring.But mandrel outer wrap insulate sheath 6; Plug two ends external fixation metal-ware 5.
Embodiment 2: see accompanying drawing 2.
The structure of composite electric insulator core bar is with embodiment 1.Its manufacturing process is, with glass fiber bundle from an end cambridge ring of wedge shape skeleton around, when the plug axis moves towards the other end, glass fiber bundle is disconnected; Walk around the wedge shape of the other end, when the plug axis walks back, glass fiber bundle is disconnected again again, circulation is twined and is distributed, disconnects repeatedly; Promptly disconnect at the two ends of plug glass fiber bundle.Wedged gap γ＜90 °.Use epoxy resin impregnatedly again, under the normal pressure, heating 120 ℃ is solidified into the plug that two ends are wedge shape.
Embodiment 3: see accompanying drawing 3.
Plug 1 is not established pre-manufactured steel wedge shape skeleton.Directly be wound in wedge shape, make the two ends wedgewise of plug with glass fiber bundle 2.Wedged gap γ＜90 °.The manufacturing process of this composite electric insulator core bar is, glass fiber bundle is twined back and forth, and the shape two ends that make its formation are that wedge shape gets final product.When glass fiber bundle twines, can be a, b, c, the disconnection of d place (continuously also can); Integral body is used epoxy resin impregnated again, and under the normal pressure, heating 120 ℃ is solidified into the plug that two ends are wedge shape.
Claims (9)
1, a kind of composite electric insulator core bar is characterized in that, plug (1) constitutes an integral body by glass fiber bundle (2), and the plug shape is that two ends are wedge shape; Wedged gap γ＜90 °.
2, according to the described composite electric insulator core bar of claim 1, it is characterized in that plug is made up of two onesize prefabricated wedge shape skeletons (4) and glass fiber bundle (2), wedge shape skeleton (4) is positioned at the two ends of plug, with glass fiber bundle be an integral body.
3, according to the manufacturing process of the described composite electric insulator core bar of claim 1, it is characterized in that glass fiber bundle is twined back and forth, the shape two ends that make its formation are wedge shape, and integral body is again with epoxy resin or insulating material dipping, under the normal pressure, heating 100-200 ℃ is solidified into the plug that two ends are wedge shape; Or impregnated material is coated in twines glass fiber bundle on the glass fiber bundle more in advance, solidify again afterwards.
4, according to the manufacturing process of the described composite electric insulator core bar of claim 2, it is characterized in that having a prefabricated steel, two gravures are arranged on the steel plate, gravure is a wedge shape; With two onesize shapes and the identical prefabricated wedge shape skeleton (4) of gravure on the steel plate, be placed in two gravures on the prefabricated steel, with glass fiber bundle from an end wedge shape skeleton around, move towards the other end along the plug axis, walk around the wedge shape skeleton of the other end, walk back along the plug axis, circulation is twined and is distributed repeatedly again; With epoxy resin or insulating material dipping, under the normal pressure, heat 100-200 ℃ is solidified into the plug that two ends are wedge shape to integral body again.
5, according to the manufacturing process of the described composite electric insulator core bar of claim 4, it is characterized in that with glass fiber bundle from wedge shape skeleton (4) one end ring around, when the plug axis moves towards the other end, glass fiber bundle is disconnected, walk around the wedge shape of the other end, when the plug axis walks back, again glass fiber bundle is disconnected again; Circulation is twined and is distributed, disconnects repeatedly.
6, according to the manufacturing process of claim 5,6 described composite electric insulator core bars, when it is characterized in that using glass fiber bundle around wedge shape, glass fiber bundle is lived by binding ring (3) bundle; Be glass fiber bundle when plug axis trend is twined back and forth, all will pass binding ring.
7, according to the manufacturing process of claim 3,4,5 described composite electric insulator core bars, the curing pressure that it is characterized in that plug is greater than 0.1Mpa.
8,, it is characterized in that vacuum degree is higher than 1 * 10 according to the manufacturing process of claim 3,4,5 described composite electric insulator core bars
-1Holder.
9, according to the manufacturing process of claim 3,4,5 described composite electric insulator core bars, it is characterized in that the vacuum pressed condition is, pressure is greater than 0.1Mpa; Vacuum degree is higher than 1 * 10
-1Holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99116805 CN1285596A (en) | 1999-08-20 | 1999-08-20 | Composite electric insulator core bar and making technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99116805 CN1285596A (en) | 1999-08-20 | 1999-08-20 | Composite electric insulator core bar and making technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1285596A true CN1285596A (en) | 2001-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99116805 Pending CN1285596A (en) | 1999-08-20 | 1999-08-20 | Composite electric insulator core bar and making technology thereof |
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| Country | Link |
|---|---|
| CN (1) | CN1285596A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775229A (en) * | 2010-01-07 | 2010-07-14 | 西安永兴科技发展有限公司 | High-temperature pressure-bearing composite insulator composition of corrosion-resistant gas and preparation method thereof |
| CN101740186B (en) * | 2010-01-29 | 2011-11-23 | 陕西泰普瑞电工绝缘技术有限公司 | Method for preparing double-stage formed high-voltage compound insulator solid core rod |
-
1999
- 1999-08-20 CN CN 99116805 patent/CN1285596A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775229A (en) * | 2010-01-07 | 2010-07-14 | 西安永兴科技发展有限公司 | High-temperature pressure-bearing composite insulator composition of corrosion-resistant gas and preparation method thereof |
| CN101775229B (en) * | 2010-01-07 | 2013-08-28 | 西安永兴科技发展有限公司 | High-temperature pressure-bearing composite insulator composition of corrosion-resistant gas and preparation method thereof |
| CN101740186B (en) * | 2010-01-29 | 2011-11-23 | 陕西泰普瑞电工绝缘技术有限公司 | Method for preparing double-stage formed high-voltage compound insulator solid core rod |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |