CN202632900U - Core body of composite insulator and composite insulator with same - Google Patents
Core body of composite insulator and composite insulator with same Download PDFInfo
- Publication number
- CN202632900U CN202632900U CN 201220277746 CN201220277746U CN202632900U CN 202632900 U CN202632900 U CN 202632900U CN 201220277746 CN201220277746 CN 201220277746 CN 201220277746 U CN201220277746 U CN 201220277746U CN 202632900 U CN202632900 U CN 202632900U
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- plug
- core body
- reinforcement
- composite insulator
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Abstract
The utility model relates to the technical field of power transmission and transformation, and particularly relates to a core body of a composite insulator for overhead power transmission lines with the rated voltage being higher than 10kV and a composite insulator with the core body. The core body provided by the utility model comprises a cylindrical core rod, wherein the outer surface of the core rod is provided with silicon-rubber reinforcing ribs extending along the axial direction. The utility model also provides the composite insulator. The core body and the composite insulator provided by the utility model have the beneficial effects that when an umbrella skirt and a protective sleeve are formed in injection or die pressing process, the core body is not eccentric; under axial tension, the core rod is uniformly stressed and does not generate eccentricity or radial component force, so that the core rod is not deformed; and since the protective sleeve with uniform thickness is formed outside the core rod, the core rod can be effectively protected, and the deformation and the cracking of the umbrella skirt and the protective sleeve are avoided.
Description
Technical field
The utility model relates to the power transmission and transformation technical field, relate in particular to a kind of be used for rated voltage be higher than the 10kV overhead transmission line a kind of composite insulator core body and have the composite insulator of this core body.
Background technology
At present; The flexible core body that the core body of existing composite insulator is made up of by the flexible load bundle of silicon rubber parcel the multiply fiberglass surfacing; And the rigidity plug of epoxy resin fiberglass formation, when on core body, passing through injection or mould pressing process formation full skirt, sheath.Because core body forms sag in die cavity, bending, it is eccentric that core body can be taken place in injection or mold process.After forming the silicon rubber umbrella sheath on off-centre, the crooked core body; Especially the flexible core body that is constituted by the flexible load bundle of silicon rubber parcel by the multiply fiberglass surfacing; Receiving under the axial tension state, each flexible load bundle discontinuity can produce radial component; Make the distortion of core body, cause the distortion or the cracking of silicon rubber umbrella sheath on the core body.Constitute the rigidity plug for epoxy resin fiberglass, owing to eccentric, cause the sheath thickness skewness of mandrel outer, thin excessively sheath can not effectively be protected plug.
Summary of the invention
In order to solve the core body of existing composite insulator, when injection or mould pressing process form full skirt, sheath, in the die cavity of pattern, form sag, bending.It is eccentric, crooked that core body is taken place in injection or mold pressing full skirt, sheath process.When after forming full skirt, sheath on off-centre, the crooked core body; The flexible core body that the flexible load bundle that is wrapped up by silicon rubber by the multiply fiberglass surfacing constitutes; Receiving under the axial tension state, discontinuity can take place in each flexible load bundle, produces radial component; Make the core body distortion, cause the distortion or the cracking of silicon rubber umbrella sheath on the core body.Constitute the rigidity plug for epoxy resin fiberglass, produce off-centre, form the even sheath of became uneven at mandrel outer, thin excessively sheath is protective core effectively, and the utility model provides a kind of core body of composite insulator and had the composite insulator of this core body.
The utility model provides a kind of core body of composite insulator, comprises columniform plug, and the outer surface of said plug is provided with along its axially extended reinforcement.
As the further improvement of the utility model, said reinforcement said plug axially on be provided with the breach that it is divided into discontinuous reinforcement.
As the further improvement of the utility model, said reinforcement is radially outward protruding along said plug.
As the further improvement of the utility model, said reinforcement has three and circumferentially evenly distributing along said plug at least.
As the further improvement of the utility model, the height of projection of said reinforcement equates.
As the further improvement of the utility model, said reinforcement is a helical form, and the axis of said reinforcement and the axis of plug coincide.
As the further improvement of the utility model, said reinforcement is a linearity, and the axis of said reinforcement and said plug parallels, and every said reinforcement equates with the axial line distance of said plug.
As the further improvement of the utility model, the cross section of said reinforcement is an isosceles triangle, and the drift angle of said isosceles triangle is a fillet.
As the further improvement of the utility model, said plug is the epoxy glass fiber plug.
Further improvement as the utility model; Be enclosed with the circumferential equally distributed flexible load bundle of at least two strands of said plugs in edge in the said plug; Said flexible load bundle is an even number and symmetrical with the axis centre of said plug, and the radial position of said flexible load bundle is away from the axis of said plug.
The utility model also provides a kind of composite insulator, comprises like each described core body in above-mentioned.
The beneficial effect of the utility model is: through such scheme, when injection or mould pressing process formed full skirt, sheath, off-centre did not take place in core body; Receiving under the axial tension state, plug is stressed evenly, does not produce off-centre; Do not produce radial component, make plug indeformable, form the uniform sheath of thickness at mandrel outer; Can effectively protect plug, avoid distortion, the cracking of umbrella sheath.
Description of drawings
Fig. 1 is enclosed with flexible load bundle, the spiral front view of reinforcement in the plug of core body of a kind of composite insulator of the utility model;
Fig. 2 is enclosed with flexible load bundle, the spiral right view of reinforcement in the plug of core body of a kind of composite insulator of the utility model;
Fig. 3 is enclosed with the linearly front view of shape of flexible load bundle, reinforcement in the plug of core body of a kind of composite insulator of the utility model;
Fig. 4 is enclosed with the linearly right view of shape of flexible load bundle, reinforcement in the plug of core body of a kind of composite insulator of the utility model;
Fig. 5 is that the plug of the core body of a kind of composite insulator of the utility model is epoxy glass fiber plug, the spiral front view of reinforcement;
Fig. 6 is that the plug of the core body of a kind of composite insulator of the utility model is epoxy glass fiber plug, the spiral right view of reinforcement;
Fig. 7 is that the plug of the core body of a kind of composite insulator of the utility model is the linearly front view of shape of epoxy glass fiber plug, reinforcement;
Fig. 8 is that the plug of the core body of a kind of composite insulator of the utility model is the linearly right view of shape of epoxy glass fiber plug, reinforcement.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is further specified.
Drawing reference numeral among Fig. 1 to Fig. 8 is: plug 1; Flexible load bundle 11; Epoxy glass fiber plug 12; Reinforcement 2; Breach 3.
To shown in Figure 8, a kind of core body of composite insulator comprises that columniform is the plug 1 of master's coagulation glue with silicon rubber like Fig. 1; Be enclosed with flexible load bundle in the said plug 1, said plug 1 outer surface is provided with along its axially extended reinforcement 2; Wherein, in the mould of silicon rubber injection or mould pressing process, form plug 1, the reinforcement 2 that said plug 1 employing is master's coagulation glue with silicon rubber forms through injection or mold pressing; Full skirt, the sheath of the silicon rubber that forms with later injection or mold pressing are both a material; Can better be integral, help improving the performance of goods, especially electrical property.。
Like Fig. 1 to shown in Figure 8, said reinforcement 2 said plug 1 axially on be provided with the breach 3 that it is divided into discontinuous reinforcement, promptly, reinforcement 2 is separated into discontinuous reinforcement 2 through a plurality of breach 3, said breach 3 is annular breach.
To shown in Figure 8, said reinforcement is radially outward protruding along 2 said plugs 1, is equivalent to protruding seamed edge like Fig. 1.
To shown in Figure 8, said reinforcement 2 has three and circumferentially evenly distributing along said plug 1 at least like Fig. 1.
To shown in Figure 8, said reinforcement 2 has four also to spend distribution along the circumferential interval 90 of said plug 1 like Fig. 1.
To shown in Figure 8, the height of projection of said reinforcement 2 equates like Fig. 1.
Extremely shown in Figure 8 like Fig. 1; Said reinforcement 2 is a helical form, and the axis of said reinforcement and the axis of plug coincide, many reinforcement 2 most important effects; Be to inject afterwards or mold pressing when forming full skirt, the sheath of silicon rubber; In the shaping die cavity, support plug 1, make sizing material can axially, radially can both be unimpeded, the more important thing is that being supported plug 1 by many reinforcements 2 does not produce off-centre.。
To shown in Figure 8, said reinforcement 2 is a linearity like Fig. 1, and said reinforcement 2 parallels with the axis of said plug 1, and every said reinforcement 2 equates with the axial line distance of said plug 1.
To shown in Figure 8, the cross section of said reinforcement 2 is an isosceles triangle like Fig. 1, and top and the root of said reinforcement 2 are equipped with fillet, and the fillet size is convenient to the demoulding by injecting or mould pressing process when forming said plug 1; Keep plug 1 when injection or mould pressing process formation umbrella sheath, said plug 1 is not eccentric; The axis of each spiral helicine reinforcement 2 and columniform plug 1 are coaxial; The reinforcement 2 of each linearity is equidistant parallel with columniform plug 1 central shaft; Each bar reinforcement 2 is uniformly distributed with along the cross-sectional circumferential of columniform plug 1; To keep plug 1 to form in the umbrella sheath process in injection or mold pressing, said plug 1 is not eccentric.
Extremely shown in Figure 8 like Fig. 1; The helical form of many convexities or the reinforcement of linearity 2 are pressed specific interval vertically and are cut off by breach 3, form discontinuous reinforcement 2; The width of said breach 3; The gap length of breach, by when injection or mould pressing process form full skirt, sheath, the flow condition of sizing material in die cavity and deciding.
To shown in Figure 8, said plug 1 is an epoxy glass fiber plug 12 like Fig. 1, and said epoxy glass fiber plug 12 is the rigidity plug.
Extremely shown in Figure 8 like Fig. 1; Be enclosed with the circumferential equally distributed flexible load bundle 11 of at least two strands of said plugs 1 in edge in the said plug 1; Said flexible load bundle 11 is an even number and symmetrical with the axis centre of said plug 1, and the radial position of said flexible load bundle 11 forms flexible plug away from the axis of said plug 1.
To shown in Figure 8, the cross section of flexible load bundle 11 on the cross section of columniform plug 1, is uniformly distributed with plug 1 central shaft symmetry like Fig. 1, and as far as possible away from plug 1 central shaft.
Extremely shown in Figure 8 like Fig. 1; Form the die cavity of the flexible load bundle 11 that parcel multiply fiberglass surfacing in the said columniform plug 1 wrapped by silicon rubber; Straightened condition when making the flexible load bundle 11 of said each strand keep tensionings, die cavity wall is pasted with flexible load bundle 11 mutually; The die cavity of the rigidity plug that parcel is made up of epoxy resin fiberglass plug 12 makes plug 1 keep straightened condition, and die cavity wall is pasted with plug 1 mutually.
To shown in Figure 8, said flexible load bundle 11 is wrapped and forms by silicon rubber by the multiply fiberglass surfacing like Fig. 1.
The utility model also provides a kind of composite insulator, comprises like each described core body in above-mentioned.
The core body of a kind of composite insulator that the utility model provides and have the composite insulator of this core body; Be enclosed with the rigidity plug that flexible plug that the circumferential equally distributed flexible load bundle 11 of at least two strands of said plugs 1 in edge forms or epoxy glass fiber plug 12 form in the said plug 1; When in injection or mould pressing process, forming umbrella sheath; In the shaping die cavity, effectively avoid forming sag, bending; When making the flexibility or rigidity plug in injection or mould pressing process, form umbrella sheath, off-centre can not take place.On the plug 1 that is not having off-centre, bending; After forming full skirt, sheath through injection or mold process, by the flexible plug that the flexible load bundle 11 of silicon rubber parcel constitutes, receiving under the axial tension state by the multiply fiberglass surfacing; Each flexible load bundle 11 is stressed evenly; Can not produce radial component, make the plug distortion, cause the distortion or the cracking of silicon rubber umbrella sheath on the plug 1.Constitute the rigidity plug for the epoxy resin fiberglass plug, can not produce off-centre, outside plug 1, form the uniform sheath of thickness, can effectively protect plug 1.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection range of the utility model.
Claims (10)
1. the core body of a composite insulator, it is characterized in that: comprise columniform plug, the outer surface of said plug is provided with along its axially extended reinforcement.
2. according to the core body of the said composite insulator of claim 1, it is characterized in that: said reinforcement said plug axially on be provided with the breach that it is divided into discontinuous reinforcement.
3. according to the core body of the said composite insulator of claim 2, it is characterized in that: said reinforcement is radially outward protruding along said plug.
4. according to the core body of the said composite insulator of claim 3, it is characterized in that: said reinforcement has three and circumferentially evenly distributing along said plug at least.
5. according to the core body of the said composite insulator of claim 4, it is characterized in that: the height of projection of said reinforcement equates that the cross section of said reinforcement is an isosceles triangle, and the drift angle of said isosceles triangle is a fillet.
6. according to the core body of the said composite insulator of claim 5, it is characterized in that: said reinforcement is a helical form, and the axis of said reinforcement and the axis of plug coincide.
7. according to the core body of the said composite insulator of claim 5, it is characterized in that: said reinforcement is a linearity, and the axis of said reinforcement and said plug parallels, and every said reinforcement equates with the axial line distance of said plug.
8. according to the core body of the said composite insulator of claim 1, it is characterized in that: said plug is the epoxy glass fiber plug.
9. according to the core body of the said composite insulator of claim 1; It is characterized in that: the circumferential equally distributed flexible load bundle that is enclosed with at least two strands of said plugs in edge in the said plug; Said flexible load bundle is an even number and symmetrical with the axis centre of said plug, and the radial position of said flexible load bundle is away from the axis of said plug.
10. a composite insulator is characterized in that: comprise like each described core body in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220277746 CN202632900U (en) | 2012-06-13 | 2012-06-13 | Core body of composite insulator and composite insulator with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220277746 CN202632900U (en) | 2012-06-13 | 2012-06-13 | Core body of composite insulator and composite insulator with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202632900U true CN202632900U (en) | 2012-12-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220277746 Expired - Fee Related CN202632900U (en) | 2012-06-13 | 2012-06-13 | Core body of composite insulator and composite insulator with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202632900U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057379A (en) * | 2016-07-12 | 2016-10-26 | 南方电网科学研究院有限责任公司 | Extra high voltage DC composite column insulator anti-vibration test sample and quality simulation method thereof |
| CN106710754A (en) * | 2017-01-22 | 2017-05-24 | 北京玻钢院复合材料有限公司 | Core rod perform of post insulator and post insulator |
| CN106847436A (en) * | 2017-03-17 | 2017-06-13 | 河南鑫海电力设备有限公司 | A kind of spiral umbrella insulator |
-
2012
- 2012-06-13 CN CN 201220277746 patent/CN202632900U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057379A (en) * | 2016-07-12 | 2016-10-26 | 南方电网科学研究院有限责任公司 | Extra high voltage DC composite column insulator anti-vibration test sample and quality simulation method thereof |
| CN106710754A (en) * | 2017-01-22 | 2017-05-24 | 北京玻钢院复合材料有限公司 | Core rod perform of post insulator and post insulator |
| CN106710754B (en) * | 2017-01-22 | 2018-03-06 | 北京玻钢院复合材料有限公司 | Support insulator plug preform and support insulator |
| CN106847436A (en) * | 2017-03-17 | 2017-06-13 | 河南鑫海电力设备有限公司 | A kind of spiral umbrella insulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20170613 |