CN106710754B - Support insulator plug preform and support insulator - Google Patents
Support insulator plug preform and support insulator Download PDFInfo
- Publication number
- CN106710754B CN106710754B CN201710053190.7A CN201710053190A CN106710754B CN 106710754 B CN106710754 B CN 106710754B CN 201710053190 A CN201710053190 A CN 201710053190A CN 106710754 B CN106710754 B CN 106710754B
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- CN
- China
- Prior art keywords
- inner core
- groove
- core rod
- support insulator
- insulator plug
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- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/14—Supporting insulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/60—Composite insulating bodies
Abstract
The invention discloses a kind of support insulator plug preform and insulator.Described support insulator precast body includes inner core rod and is wrapped in the composite layer of the outer surface of the inner core rod；The outer surface of the inner core rod is axially disposed a plurality of groove；The inner core rod is axially inside provided with least one axial passage, has been disposed radially a plurality of radial passage；It is connected between the groove and the axial passage by the radial passage.The support insulator plug preform of the present invention can significantly improve the form efficiency of product, reduce interiors of products composite layer and soak impermeable phenomenon, improve the yield rate of product.
Description
Technical field
The present invention relates to a kind of support insulator inner core rod preform, support insulator is further related to.
Background technology
Large-diameter pillar insulator plug typically infiltrates epoxy resin using by the preform of support insulator plug
The technique that curing molding is carried out after glass fiber winding, the technique easily produce layering and bubble phenomenon, while in cure shrinkage
Easily cracking afterwards, this product for causing to obtain is unable to reach the electrical property and mechanical property requirements of standard, so that into
Product rate is relatively low.
In order to solve the above problems, pouring and forming process is developed later, the technique is in inner core rod (such as pultrusion inner core
Rod) glass fabric, then the form in mould are wound outside, infusion time length is less efficient, and exists close to internal
Glass fabric soak impermeable phenomenon, yield rate is relatively low.In existing instillation process, generally use solid inner core rod, its shape
Shape is simple cylinder.Such as Chinese patent application 201220180186.X discloses a kind of composite rod insulator plug,
With inner core rod (1), at least there is one layer of sleeve (3) being adhesively fixed by tack coat (2) in the outside of inner core rod (1), should
Inner core rod is cylinder.Chinese patent application 201320345980.X discloses a kind of combined type plug and with this plug
Insulator, the combined type plug are included positioned at middle main core rod, some inner core rods being arranged on around the main core rod, Yi Jishe
Put the fixing pipe in some inner core rod peripheries；In the patent application, no matter main core rod be also provided in it is interior around the plug
Plug, it is cylinder.
The content of the invention
It is an object of the invention to provide a kind of support insulator plug preform, its charging efficiency is high, and yield rate
It is high.
It is a further object of the present invention to provide a kind of support insulator, its high yield rate.
The purpose of the present invention is achieved by the following technical solution.
A kind of support insulator plug preform, including inner core rod and the composite wood for being wrapped in the inner core rod outer surface
The bed of material；The outer surface of the inner core rod is axially disposed a plurality of groove, and the inner core rod is axially inside provided with least
One axial passage, has been disposed radially a plurality of radial passage；Pass through described footpath between the groove and the axial passage
It is connected to passage.
In the present invention, it is preferable that described inner core rod is pultrusion plug.The cross section of described inner core rod is for circle or just
Polygon.Preferably, a diameter of 80~150mm of described inner core rod, more preferably 90~135mm.When the inner core rod
When cross section is regular polygon, the diameter of described inner core rod refers to the inscribe diameter of a circle of the regular polygon.Preferably, it is described
The material of inner core rod can be fiber-resin composite.
In the present invention, it is preferable that the outer surface of described inner core rod is the coarse structure after coarse processing.It is preferred that
Ground, described coarse processing method are selected from least one of Vehicle Processing, angle grinder polishing or blasting treatment.Preferably, it is described
Inner core rod outer surface surface roughness be not less than 25 μm, more preferably not less than 35 μm.Inner core rod has above-mentioned thick
During rough structure, the adhesive force that can be effectively increased between inner core rod surface and the composite (such as glass fabric) of outer layer.
In the present invention, the axially disposed a plurality of groove in outer surface of described inner core rod, i.e., described groove is in inner core rod
Axially extended on outer surface.The concrete shape of groove is unlimited, can be regular shape, or irregular shape.It is described
Inner core rod include be arranged on the inner core rod both ends glue inlet end and gum outlet end, described groove is in inner core rod
Glue inlet end set be groove or non-groove, be non-groove in gum outlet end set.In other words, described groove extension
To the glue inlet end or glue inlet end is not extend to, and is not extend to gum outlet end, the groove and inner core rod
Gum outlet end between have certain distance.According to an embodiment of the invention, the groove extends to the glue inlet
End.Preferably, the distance between one end of the close gum outlet end of described groove and inner core rod gum outlet end are
100~250mm, more preferably 150~220mm.According to an embodiment of the invention, described groove is not extend to described
Glue inlet end, and the distance between one end of the close glue inlet end of described groove and inner core rod glue inlet end are 30
~220mm, preferably 40~200mm, more preferably 50~150mm, it is further preferably 60~100mm.
In the present invention, it is preferable that the cross section of the groove is selected from rectangle, arc (such as semicircle) or isosceles trapezoid.
In the present invention, the width of described groove is 2~7mm, preferably 3~5mm；The depth of the groove is 1~6mm, preferably 2
~4mm.
According to an embodiment of the invention, described groove is 2~12 straight flutes being parallel to each other, and is uniformly divided
Cloth is in the outer surface of the inner core rod.Preferably, the quantity of described straight flute is 3~10, more preferably 4~8.It is preferred that
Ground, the cross section of the straight flute is rectangle, and the width of the straight flute is 3~5mm, and depth is 2~4mm.
According to another implementation of the invention, described groove is 2~8 spiral grooves being parallel to each other, and
It is evenly distributed on the outer surface of the inner core rod.Preferably, the spiral angle of described spiral groove is 30 °~60 °, more excellent
Elect 35 °~55 ° as；Pitch is 700~1200mm, preferably 800~1000mm, more preferably 850~950mm.Preferably, institute
The cross section for the spiral groove stated is isosceles trapezoid, and the width of the spiral groove is 3~5mm, and depth is 2~4mm.It is excellent
Selection of land, the quantity of described spiral groove is 1~8, and more preferably 2~6, be further preferably 3~5.
In the present invention, described axial passage is arranged on the inside of described inner core rod, and axially extends, the axial direction
The shape and direction that passage specifically extends inside the inner core rod are unlimited, can be axially in parallel with inner core rod, Huo Zheyu
The axial direction of inner core rod can also be in irregular shape at an angle.Preferably, described axial passage is parallel to the inner core
The axial direction of rod.In the present invention, described axial passage opens up from the glue inlet end of the inner core rod, and will not penetrate to institute
The gum outlet end of inner core rod is stated, so that resin can be conveyed from the glue inlet end of the inner core rod by axial passage
Into groove.Preferably, the cross section of described axial passage is circular or regular polygon, its a diameter of 8~35mm, more preferably
For 12~20mm.
In the present invention, described radial passage connection axial passage and groove, so that resin can be from axial passage
Smoothly import in groove.Described radial passage can be disposed in such a manner, and every groove is connected with least one radial passage
It is logical.It is connected for example, could be arranged to every groove with 1~5, preferably 1~3 radial passage.Specifically, described footpath
To passage, one or more layers can be set；When being arranged to multilayer, i.e., every groove passes through a plurality of radial passage and axial passage
It is connected, so as to be more beneficial for resin rapid osmotic in the composite layer outside inner core rod.Preferably, the radial direction
The cross section of passage is circular or regular polygon, its a diameter of 2~7mm, preferably 3~5mm.
According to an embodiment of the invention, the axial passage extends to the inner core rod from the glue inlet end
Inside, its length is 40~250mm；And the distance between the radial passage and glue inlet end are 40~250mm.
According to one embodiment of the present invention, described inner core rod outer surface is axially disposed have 8 be parallel to each other and
Equally distributed groove, the groove are straight flute, and cross section is rectangle, and width is 3~5mm, and depth is 2~4mm；The ditch
The distance between one end and glue inlet end of groove are 60~100mm, between the other end of the groove and gum outlet end
Distance is 150~220mm；The inner core rod is axially inside provided with an axial passage, has been disposed radially connection institute
State the radial passage of axial passage and the groove；The cross section of the axial passage is circle, and a diameter of 15~20mm is described
The cross section of radial passage is circle, and a diameter of 4~6mm, every groove is connected by a radial passage with axial passage.
According to another embodiment of the invention, described inner core rod outer surface is axially disposed to have 4 to be parallel to each other
And equally distributed groove, the groove are spiral groove, pitch is 800~1000mm, and cross section is isosceles trapezoid, width
For 3~5mm, depth is 2~4mm；One end that the groove is located at glue inlet end is groove, and the other end of the groove is with going out
The distance between Jiao Kou ends are 150~220mm；The inner core rod is axially inside provided with an axial passage, along footpath
To the radial passage for being provided with the connection axial passage and the groove；The cross section of the axial passage is circular, diameter
For 15~20mm, the cross section of the radial passage is that round diameter is 4~6mm, and every groove passes through a radial passage
Connected with axial passage.
The present invention also provides a kind of support insulator, and it includes above-mentioned support insulator plug preform.This is propped up
After post core rod of insulator preform impregnation, solidification, Surface Machining processing is carried out, full skirt is then installed additional, so as to obtain this hair
Bright support insulator.
The inner core rod of the support insulator plug preform of the present invention is provided with groove, axial passage and radial passage etc.
Structure, the resin from inner core rod glue inlet end can be flowed into axial passage, then are flowed into by radial passage in groove, so
The composite layer penetrated into afterwards outside inner core rod, so as to improve the charging efficiency of product, effectively reduce close to inside
Composite layer soak impermeable phenomenon, improve the yield rate of product.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the support insulator plug preform of embodiment 1.
Fig. 2 is the overall structure diagram of the inner core rod of the support insulator plug preform of embodiment 1.
Fig. 3 is profile of the inner core rod of the support insulator plug preform of embodiment 1 along A-A ' directions.
Fig. 4 is the overall structure diagram of the inner core rod of the support insulator plug preform of embodiment 2.
Fig. 5 is profile of the inner core rod of the support insulator plug preform of embodiment 2 along B-B ' directions.
Fig. 6 is the overall structure diagram of the inner core rod of the support insulator plug preform of embodiment 3.
Fig. 7 is the overall structure diagram of the inner core rod of the support insulator plug preform of embodiment 6.
Description of reference numerals is as follows：
1st, inner core rod；2nd, composite layer；3rd, groove；4th, axial passage；5th, radial passage.
Embodiment
With reference to specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to
This.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, the support insulator plug preform of the present embodiment includes inner core rod 1 and compound
Material layer 2.The outer surface of inner core rod 1 is axially disposed 8 grooves being parallel to each other 3, and groove 3 is that cross section is isosceles trapezoid
Straight flute, width 4mm, depth 3mm；Groove 3 is evenly distributed on the outer surface of inner core rod 1.One end of groove 3 is with entering
The distance between Jiao Kou ends are 70mm, and the distance between its other end and gum outlet end are 180mm.The inside of inner core rod 1
It is axially disposed to have an axial passage 4, it has been disposed radially 8 radial passages 5, radial passage 5 is by axial passage 4 and groove
3 connections.Axial passage 4 extends to the inside of inner core rod 1 from glue inlet end, and its length is 100mm.Radial passage 5 is with entering glue
The distance between mouth end is 80mm.The cross section of axial passage 4 is circular, a diameter of 18mm.The cross section of radial passage 5 is
Circle, a diameter of 5mm.Every groove 3 is connected by a radial passage 5 with axial passage 4.The direction of arrow in Fig. 2 represents
The flow direction of resin.
The support insulator plug preform of embodiment 1 is obtained by post-processing steps such as impregnation, solidification plus full skirts
Support insulator.
During support insulator plug preform irrigates resin, resin is from the inner core rod 1 of the preform
Glue inlet end irrigates to gum outlet end, and except common filling process, while resin also enters inner core by axial passage 4
The inside of rod 1, then flowed into by radial passage 5 in groove 3, realize resin oozing from inner core rod 1 to composite layer 2 simultaneously
Thoroughly, so as to improve the charging efficiency of product, the impermeable phenomenon of leaching of the composite layer 2 close to inside is reduced, improves product
Yield rate.
Embodiment 2
The support insulator plug preform of the present embodiment includes inner core rod 1 and composite layer 2.Such as Fig. 4 and Fig. 5 institutes
Show, the outer surface of inner core rod 1 is axially disposed there are 4 grooves being parallel to each other 3.Groove 3 is the spiral shape ditch that cross section is rectangle
Groove, its pitch are 900mm, width 5mm, depth 4mm；Groove 3 is evenly distributed on the outer surface of inner core rod 1.Groove 3
The distance between one end and glue inlet end are 70mm, and the distance between its other end and gum outlet end are 200mm.Inner core rod
1 is axially inside provided with an axial passage 4, has been disposed radially 4 radial passages 5.Radial passage 5 is by axial passage
4 connect with groove 3.Axial passage 4 extends to the inside of inner core rod 1 from glue inlet end, and its length is 90mm.Radial passage 5
The distance between glue inlet end is 80mm.The cross section of axial passage 4 is circular, a diameter of 20mm, the horizontal stroke of radial passage 5
Section is circular, a diameter of 5mm.Every groove 3 is connected by a radial passage 5 with axial passage 4.Arrow side in Fig. 4
To the flow direction for representing resin.
The support insulator plug preform of embodiment 2 is obtained by post-processing steps such as impregnation, solidification plus full skirts
Support insulator.
The process of the perfusion resin of the support insulator plug preform of embodiment 2 is same as Example 1, no longer superfluous
State.
Embodiment 3
As shown in fig. 6, except groove 3 is arranged into groove (i.e. groove 3 and glue inlet positioned at one end of glue inlet end
The distance between end is that zero), other are same as Example 1.
Embodiment 4
Except the quantity of groove 3 is arranged into 6, other are same as Example 1.
Embodiment 5
Except the cross section of groove 3 is arranged into rectangle, other are same as Example 1.
Embodiment 6
As shown in fig. 7, except groove 3 to be arranged to groove (i.e. groove 3 and glue inlet end in one end of glue inlet end
The distance between be that zero), other are same as Example 2.
The present invention is not limited to above-mentioned embodiment, in the case of without departing substantially from the substantive content of the present invention, this area skill
Any deformation, improvement, the replacement that art personnel are contemplated that each fall within the scope of the present invention.
Claims (10)
1. a kind of support insulator plug preform, it is characterised in that described support insulator precast body includes inner core rod
With the composite layer of the outer surface that is wrapped in the inner core rod；The outer surface of the inner core rod is axially disposed more bar ditch
Groove；The inner core rod is axially inside provided with least one axial passage, has been disposed radially a plurality of radial passage；It is described
It is connected between groove and the axial passage by the radial passage；Wherein, described inner core rod is pultrusion plug.
2. support insulator plug preform according to claim 1, it is characterised in that the inner core rod includes setting
In the glue inlet end at the both ends of the inner core rod and gum outlet end；The groove is not extend to the gum outlet end.
3. support insulator plug preform according to claim 2, it is characterised in that the axial passage is from described
Glue inlet end extends to the inside of the inner core rod, and its length is 40~250mm；And the radial passage and glue inlet end
The distance between portion is 40~250mm.
4. support insulator plug preform according to claim 3, it is characterised in that every groove passes through at least one
Bar radial passage is connected with the axial passage.
5. support insulator plug preform according to claim 2, it is characterised in that the groove close to described
The distance between one end of gum outlet end and the gum outlet end are 100~250mm.
6. support insulator plug preform according to claim 5, it is characterised in that the groove extends to described
Glue inlet end.
7. support insulator plug preform according to claim 1, it is characterised in that the cross section choosing of the groove
From rectangle, arc or isosceles trapezoid, the width of the groove is 2~7mm, and depth is 1~6mm.
8. support insulator plug preform according to claim 7, it is characterised in that the groove is 2~12
The straight flute being parallel to each other, the straight flute are evenly distributed on the outer surface of the inner core rod.
9. support insulator plug preform according to claim 7, it is characterised in that the groove is 2~8 phases
Mutually parallel spiral groove, its spiral angle are 30~60 °, and pitch is 700~1200mm；The spiral groove uniformly divides
Cloth is in the outer surface of the inner core rod.
10. a kind of support insulator, it is characterised in that it includes the support insulator plug described in any one of claim 1~9
Preform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710053190.7A CN106710754B (en) | 2017-01-22 | 2017-01-22 | Support insulator plug preform and support insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710053190.7A CN106710754B (en) | 2017-01-22 | 2017-01-22 | Support insulator plug preform and support insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106710754A CN106710754A (en) | 2017-05-24 |
| CN106710754B true CN106710754B (en) | 2018-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710053190.7A Active CN106710754B (en) | 2017-01-22 | 2017-01-22 | Support insulator plug preform and support insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106710754B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112083304B (en) * | 2020-08-18 | 2021-08-27 | 西安交通大学 | Preparation method of sample for simulating layered defect of insulator insert |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001338544A (en) * | 2000-05-31 | 2001-12-07 | Daito Co Ltd | Method for manufacturing polymer insulator, polymer insulator and die |
| KR20050030815A (en) * | 2003-09-26 | 2005-03-31 | 엘에스전선 주식회사 | Metal fitting for polymeric insulator |
| JP2006286333A (en) * | 2005-03-31 | 2006-10-19 | Furukawa Electric Co Ltd:The | End fixing structure for frp rod |
| CN202632900U (en) * | 2012-06-13 | 2012-12-26 | 秦琛 | Core body of composite insulator and composite insulator with same |
| CN103021593A (en) * | 2012-12-06 | 2013-04-03 | 唐苑雯 | Large-diameter rod insulator mandrel |
| CN204130279U (en) * | 2014-09-06 | 2015-01-28 | 河南莱源电气有限公司 | A kind of insulator inner core part |
| CN206388573U (en) * | 2017-01-22 | 2017-08-08 | 北京玻钢院复合材料有限公司 | Support insulator plug preform and support insulator |
-
2017
- 2017-01-22 CN CN201710053190.7A patent/CN106710754B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001338544A (en) * | 2000-05-31 | 2001-12-07 | Daito Co Ltd | Method for manufacturing polymer insulator, polymer insulator and die |
| KR20050030815A (en) * | 2003-09-26 | 2005-03-31 | 엘에스전선 주식회사 | Metal fitting for polymeric insulator |
| JP2006286333A (en) * | 2005-03-31 | 2006-10-19 | Furukawa Electric Co Ltd:The | End fixing structure for frp rod |
| CN202632900U (en) * | 2012-06-13 | 2012-12-26 | 秦琛 | Core body of composite insulator and composite insulator with same |
| CN103021593A (en) * | 2012-12-06 | 2013-04-03 | 唐苑雯 | Large-diameter rod insulator mandrel |
| CN204130279U (en) * | 2014-09-06 | 2015-01-28 | 河南莱源电气有限公司 | A kind of insulator inner core part |
| CN206388573U (en) * | 2017-01-22 | 2017-08-08 | 北京玻钢院复合材料有限公司 | Support insulator plug preform and support insulator |
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| Publication number | Publication date |
|---|---|
| CN106710754A (en) | 2017-05-24 |
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