CN110060826A - Core rod of insulator precast body, core rod of insulator and the insulator with this plug - Google Patents

Core rod of insulator precast body, core rod of insulator and the insulator with this plug Download PDF

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Publication number
CN110060826A
CN110060826A CN201910494242.3A CN201910494242A CN110060826A CN 110060826 A CN110060826 A CN 110060826A CN 201910494242 A CN201910494242 A CN 201910494242A CN 110060826 A CN110060826 A CN 110060826A
Authority
CN
China
Prior art keywords
winding
insulator
core rod
precast
layer
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
Application number
CN201910494242.3A
Other languages
Chinese (zh)
Inventor
胡晨光
徐建伟
李毅
曹阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Yu Yu Industrial Co Ltd
Original Assignee
Shandong Yu Yu Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Yu Yu Industrial Co Ltd filed Critical Shandong Yu Yu Industrial Co Ltd
Priority to CN201910494242.3A priority Critical patent/CN110060826A/en
Publication of CN110060826A publication Critical patent/CN110060826A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/14Supporting insulators
    • H01B17/145Insulators, poles, handles, or the like in electric fences
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/32Single insulators consisting of two or more dissimilar insulating bodies
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/38Fittings, e.g. caps; Fastenings therefor

Abstract

The invention discloses a kind of core rod of insulator precast body, core rod of insulator and insulators with this plug.Of the invention includes inner core rod and the winding layer wound on the inner core rod outer surface;Winding layer is mainly formed by fiberglass braided, and winding layer includes the first winding group and the second winding group, and the thickness proportion of the first winding group and the second winding group is 4:1;The first winding group and the second winding group are alternately arranged, and the first winding group and the second winding group all 10-15 are a;Winding layer with a thickness of 80-120mm.Core rod of insulator precast body of the present invention its can be used for producing the composite post insulator that bending property is improved.The present invention forms 3 D weaving layer in the outer surface of inner core rod, prevents the sliding between each fibrous layer, and then improve the bending property of core rod of insulator.Cost is relatively low for precast body of the invention, structurally reasonable, and can produce the high core rod of insulator of bending property.

Description

Core rod of insulator precast body, core rod of insulator and the insulator with this plug
Technical field
The present invention relates to a kind of power industry power transmission and transformation core rod of insulator precast body and insulators, and in particular to insulator Plug precast body, core rod of insulator and the insulator with this plug.
Background technique
The support insulator of existing power transmission and transformation mainly has porcelain class support insulator and composite post insulator.Composite post Insulator has the characteristics that light weight, intensity be high, resistance to pollution flashover, in high voltage power transmission and transforming using more and more extensive.With electricity Press the raising of grade, it is desirable that the strength and stiffness of composite post insulator want sufficiently high, and then require composite post insulator core The diameter of stick wants sufficiently large.
The plug of the additional silicon rubber umbrella skirt t shore insulator of composite material inner core is made of composite material, due to diameter It is larger, a pultrusion is difficult for pultrude process.The molding mode that the plug of support insulator uses at present is mostly various The small drawing and extruding bar of specification bundles carry out overall perfusion, but such technique exists due to thinner more inner core rod structures Adhesive layer is excessive, and biggish area ratio is occupied in the cross-sectional area of plug, and internal generation is biggish interior in solidification process The defects of stress, unbalanced stress causes inside to crack, is extremely difficult to ideal using effect in actual use.Pillar The plug of insulator can also form in the following way: inside is pultrusion plug, and outer layer is performed in multiple times winding.This molding Although mode can satisfy actual operation requirements, but production efficiency is lower, and outer layer, which need to carry out repeatedly winding, need to repeatedly solidify, It is more for the procedure calls in winding process, and it is larger to consume energy, and substantially increases the manufacturing cost of product.In addition, fiber exists There is certain abrasion to will be greatly reduced the mechanical property of plug in winding process.
In addition, traditional composite post insulator plug generally includes multiple fibrous layers, pass through ring between each fibrous layer Oxygen resin solidification is combined together, but there are interface between each fibrous layer, causes to be easy to happen cunning between each fibrous layer It moves, to influence the bending property of core rod of insulator.
Summary of the invention
Aiming at the deficiencies in the prior art, the present invention provide a kind of core rod of insulator precast body, core rod of insulator and Insulator with this plug.
In order to achieve the above object, technical solution of the present invention is as follows:
Core rod of insulator precast body, the winding layer including inner core rod and wound on the inner core rod outer surface;The winding layer is main It is formed by fiberglass braided, the winding layer includes the first winding group and the second winding group, and the first winding group is twined with second The thickness proportion of winding is 4:1;The first winding group and the second winding group are alternately arranged, and the first winding group and second twines Winding all 10-15;The winding layer with a thickness of 80-120mm.
Further, the winding angle of the first winding group is 6 ° -9 °, the winding angle of the second winding group is 82 ° - 85°。
Further, the diameter of the inner core rod is 90-150mm.
Further, the difference of the length of the breadth of the winding layer and the inner core rod is less than 10cm.
Further, the glass fibre with a thickness of 0.5-0.7mm.
Further, the outer surface of the inner core rod has symmetrical chiasma screw thread, and the depth of the screw thread is 0.3mm- 0.6mm, the screw pitch of the screw thread are 1mm -6mm.
The present invention also provides a kind of core rod of insulator, which includes the insulator of above-mentioned precast body.
The present invention also provides a kind of insulator, which includes the insulator of above-mentioned core rod of insulator.
The utility model has the advantages that the present invention forms 3 D weaving layer in the outer surface of inner core rod, it is therefore prevented that each fibre of traditional structure The sliding between layer is tieed up, and then improves the bending property of core rod of insulator.Cost is relatively low for precast body of the invention, structure Rationally, and the high insulator of bending property can be produced.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure, 1- inner core 1,2- winding layer, 3- the first winding group, 4- the second winding group, 5- screw thread.
Specific embodiment
The present invention is described below with reference to specific embodiments.It will be appreciated by those skilled in the art that these embodiments are only For illustrating the present invention, do not limit the scope of the invention in any way.
Embodiment is referring to Fig. 1, core rod of insulator precast body, including inner core 1 and wound on 1 outer surface of inner core rod Winding layer 2;The difference of the length of the breadth of winding layer and the inner core rod is less than 10cm;
Winding layer 2 includes the first winding group 3 and the second winding group 4, the first winding group and the second winding group all 12, the first winding The winding angle of group is 7 °, and the winding angle of the second winding group is 83 °, and the thickness proportion of the first winding group and the second winding group For 4:1;The first winding group and the second winding group are alternately arranged;The winding layer with a thickness of 100mm.
In a specific embodiment, winding layer 2 is mainly formed by fiberglass braided, glass fibre with a thickness of 0.6mm。
In a specific embodiment, the diameter of inner core rod is 120mm, and the outer surface of inner core rod has symmetrical chiasma spiral shell Line, the depth of screw thread are 0.4mm, and the screw pitch of screw thread is 3.5mm.
A kind of core rod of insulator, the core rod of insulator include the insulator of above-mentioned precast body.
A kind of insulator, the insulator include the insulator of above-mentioned core rod of insulator.
The preparation method of core rod of insulator precast body and core rod of insulator is explained in detail below.
1) outer surface of pultrusion inner core rod is subjected to blasting treatment, removes the resin-rich layer of exterior surface;And it is cleaned with alcohol Outer surface removes its surface impurity;
2) precast body will be formed on glass fiber winding to step 1) treated inner core rod;
3) step 2 is obtained precast body to be placed in vacuum injection molding mold, is infused after molding using vacuum injection technique Gum forming;
4) after injecting glue, the gum outlet of vacuum injection molding mold and glue inlet is closed, is put into curing oven and is consolidated Change;Curing cycle is 60 DEG C of solidifications 4h, 70 DEG C of solidification 5h, then 80 DEG C of solidification 5h;
5) it after solidifying, is demoulded, surface processes to form insulator product.
Comparative example
(1) choosing diameter is the solid pultrusion insulation mandrel of 120mm, long 2m;Its outer surface is subjected to blasting treatment, goes exterior surface Resin-rich layer;And outer surface is cleaned with alcohol, remove its surface impurity;
(2) it winds for the first time: before winding, dipping in winding epoxy resin in solid pultrusion insulation mandrel external coating ring with hair rolling Oxygen resin.Start to wind glass fibre, winding angle is divided into two kinds: 5 °, 86 °, and the winding thickness accounting of two kinds of angles is 7:1. Being wound to diameter of mandrel for the first time is 220mm, stops winding;
(3) first time curing process: 70 DEG C of solidifications 2h, 90 DEG C of solidification 2h, then 120 DEG C of solidification 3h;
(4) it winds for second: the plug outer surface after first time curing process being subjected to blasting treatment, goes the richness of exterior surface Resin layer;And outer surface is cleaned with alcohol, remove its surface impurity.Start second to wind, winding angle be divided into two kinds: 5 °, 86 °, the winding thickness accounting of two kinds of angles is 7:1.Being wound to diameter of mandrel for the second time is 305mm, stops winding;
(5) second of curing process: 70 DEG C of solidifications 2h, 90 DEG C of solidification 2h, then 120 DEG C of solidification 3h;
(6) plug after second of curing process is machined, is 305mm by diameter of mandrel Vehicle Processing.
According to GB/T-1449-2005 testing standard, it is tested for the property to by gained insulator product, the knot of embodiment Fruit are as follows: bending strength 1314Mpa, bending modulus 40.5Gpa.The result of comparative example are as follows: bending strength 523Mpa, bending modulus 20.3Gpa。

Claims (8)

1. core rod of insulator precast body, it is characterised in that: the winding layer including inner core rod and wound on the inner core rod outer surface;Institute It states winding layer mainly to be formed by fiberglass braided, the winding layer includes the first winding group and the second winding group, and first twines The thickness proportion of winding and the second winding group is 4:1;The first winding group and the second winding group are alternately arranged, and first twines Winding and the second winding group all 10-15 are a;The winding layer with a thickness of 80-120mm.
2. core rod of insulator precast body as described in claim 1, it is characterised in that: the winding angle of the first winding group be 6 °- 9 °, the winding angle of the second winding group is 82 ° -85 °.
3. core rod of insulator precast body as described in claim 1, it is characterised in that: the diameter of the inner core rod is 90- 150mm。
4. core rod of insulator precast body as described in claim 1, it is characterised in that: the breadth of the winding layer and the inner core The difference of the length of stick is less than 10cm.
5. core rod of insulator precast body as described in claim 1, it is characterised in that: the glass fibre with a thickness of 0.5- 0.7mm。
6. core rod of insulator precast body as described in claim 1, it is characterised in that: the outer surface of the inner core rod has symmetrical Intersect screw thread, the depth of the screw thread is 0.3mm -0.6mm, and the screw pitch of the screw thread is 1mm -6mm.
7. a kind of includes the core rod of insulator of the precast body as described in claim 1 to 6 is any.
8. a kind of insulator including core rod of insulator as claimed in claim 7.
CN201910494242.3A 2019-06-09 2019-06-09 Core rod of insulator precast body, core rod of insulator and the insulator with this plug Pending CN110060826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910494242.3A CN110060826A (en) 2019-06-09 2019-06-09 Core rod of insulator precast body, core rod of insulator and the insulator with this plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910494242.3A CN110060826A (en) 2019-06-09 2019-06-09 Core rod of insulator precast body, core rod of insulator and the insulator with this plug

Publications (1)

Publication Number Publication Date
CN110060826A true CN110060826A (en) 2019-07-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910494242.3A Pending CN110060826A (en) 2019-06-09 2019-06-09 Core rod of insulator precast body, core rod of insulator and the insulator with this plug

Country Status (1)

Country Link
CN (1) CN110060826A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205177515U (en) * 2015-12-04 2016-04-20 北京玻钢院复合材料有限公司 Solid plug and contain its insulator
CN106298111A (en) * 2016-10-25 2017-01-04 北京玻钢院复合材料有限公司 Core rod of insulator precast body, core rod of insulator and preparation method
CN106448958A (en) * 2016-10-25 2017-02-22 北京玻钢院复合材料有限公司 Non-resin winding perform, insulator core rod and preparation method
CN106531376A (en) * 2016-10-25 2017-03-22 北京玻钢院复合材料有限公司 Preform, insulator core rod and preparation method
CN206179608U (en) * 2016-10-25 2017-05-17 北京玻钢院复合材料有限公司 Prefabricated body of insulator core rod and insulator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205177515U (en) * 2015-12-04 2016-04-20 北京玻钢院复合材料有限公司 Solid plug and contain its insulator
CN106298111A (en) * 2016-10-25 2017-01-04 北京玻钢院复合材料有限公司 Core rod of insulator precast body, core rod of insulator and preparation method
CN106448958A (en) * 2016-10-25 2017-02-22 北京玻钢院复合材料有限公司 Non-resin winding perform, insulator core rod and preparation method
CN106531376A (en) * 2016-10-25 2017-03-22 北京玻钢院复合材料有限公司 Preform, insulator core rod and preparation method
CN206179608U (en) * 2016-10-25 2017-05-17 北京玻钢院复合材料有限公司 Prefabricated body of insulator core rod and insulator

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Application publication date: 20190726

RJ01 Rejection of invention patent application after publication