CN102592755A - Ceramic compound bracket insulator and processing method thereof - Google Patents
Ceramic compound bracket insulator and processing method thereof Download PDFInfo
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- CN102592755A CN102592755A CN2011100091187A CN201110009118A CN102592755A CN 102592755 A CN102592755 A CN 102592755A CN 2011100091187 A CN2011100091187 A CN 2011100091187A CN 201110009118 A CN201110009118 A CN 201110009118A CN 102592755 A CN102592755 A CN 102592755A
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Abstract
The invention relates to a ceramic compound bracket insulator and a processing method thereof. The ceramic compound bracket insulator comprises a bracket upper accessory (1), a ceramic mandrel (2), an umbrella cover (3) and a bracket lower accessory (4), wherein the umbrella cover (3) consists of a plurality of umbrella skirts; the bracket upper accessory (1) and the bracket lower accessory (4) are fixedly connected to the two ends of the ceramic mandrel (2); the umbrella cover (3) is arranged between the bracket upper accessory (1) and the bracket lower accessory (4); and the umbrella cover (3) is a silicon rubber umbrella cover. The ceramic compound bracket insulator has the advantages of high rigidity and high compressive resistant property of the conventional ceramic insulator as well as the advantages of hydrophobicity and easiness in transporting.
Description
Technical field
The present invention relates to electrification railway contact net and use insulator, compound bracket insulator of the porcelain that especially a kind of contact nets in electrified railways are used and processing method thereof.
Background technology
The bracket insulator material that electric railway is at present used is divided into two kinds, and a kind of is traditional porcelain bracket insulator, and another kind is compound bracket insulator.
The insulating element of traditional porcelain bracket insulator is an inorganic material, and material surface has the ability of stronger adsorption moisture.In order under the dirty environmental condition of humidity, still to make insulator that higher sheet resistance is arranged, just need make insulator have the bigger leakage distance and the version of more complicated.Because its manufacturing materials be the material of densification very, good rigidly and have good compression strength.But because porcelain bracket insulator density is bigger, therefore, insulator is very heavy.And, broken easily because it is a fragile material, need be careful and put down gently, make troubles for transportation and installation.
Compound bracket insulator is meant that bracket is supported in the contact line and mainly plays a supportive role, and receives the compression from contact line.Composite electric insulator core bar adopts the main support parts of glass-epoxy leading-drawing rod as its mechanical performance, and plug has certain amount of deflection, this just make in that to bear its bending resistance deflection bigger.Compare traditional porcelain bracket insulator, the umbrella sheath material of compound bracket insulator then is to adopt organic material, and is more light than the weight of porcelain bracket insulator; And the elasticity of umbrella sheath material is fine; Be not easy fragmentation, therefore, the installation of compound bracket insulator and transport more convenient.And the ability force rate porcelain insulator that composite insulator is resisted artificial destructions such as gunslinging or stone hit is eager to excel.But there is aging problem in organic material under the effect of extraneous natural environment, and so-called " wear out " is meant, insulator owing to various physics and chemical change, makes its electric property and mechanical strength increase and deterioration gradually in time in long-time running.The factor that causes The Ageing of Insulators is a lot, mainly contains the effect of heat, the effect (comprise local discharge process) of electricity, the effect of mechanical force and the influence of surrounding environment, for example makes moist, the effect of ozone and various rays etc.Various factor can be to the insulator generation effect except itself, also usually interacts and promotes, ageing process is quickened.The insulator of different materials, its aging rule and characteristics are different.
Summary of the invention
The object of the invention is to provide compound bracket insulator of a kind of porcelain and processing method thereof; The compound bracket insulator of porcelain of the present invention has the good rigidly and the strong advantage of compressive property of traditional porcelain insulator concurrently; And composite insulator have a hydrophobicity, is prone to the advantage of transportation.
On the one hand, the compound bracket insulator of a kind of porcelain of the present invention comprises: annex under annex on the bracket, porcelain core rod, the umbrella cover of being made up of a plurality of full skirts and the bracket; Wherein, on the said bracket under annex and the said bracket annex be fixedly connected on the two ends of said porcelain core rod; Said umbrella cover is arranged on the said bracket under the annex and said bracket between the annex; And said umbrella cover is the silicon rubber umbrella cover.
The compound bracket insulator of above-mentioned porcelain, preferred said porcelain core rod is cylindrical.
The compound bracket insulator of above-mentioned porcelain, on the preferred said bracket under annex and the said bracket annex be gold utensil.
The compound bracket insulator of above-mentioned porcelain, annex is connected with said porcelain core rod through bonding agent on the preferred said bracket; Annex is connected with said porcelain core rod through bonding agent on the said bracket.
The compound bracket insulator of above-mentioned porcelain, preferred said umbrella cover is the umbrella cover of integral injection molding.
On the other hand, the present invention also provides the processing method of the compound bracket insulator of a kind of porcelain, and this method comprises the steps:
Step 1 is chosen on porcelain core rod, the bracket annex under the annex and bracket, with binding agent annex under annex and the bracket on the said bracket is fixedly connected on the two ends of said porcelain core rod, obtains the porcelain core rod that assembles; Step 2 uses tensile testing machine that the porcelain core rod that assembles is stretched 50%, specified mechanical load is set continues 15s; Carrying out outward appearance detects; Step 3 meets the requirements if outward appearance detects, and injection molding is installed on injector, when treating that temperature rises to 175 ℃～185 ℃, silicon rubber is put into material storage tube, puts into the said porcelain core rod that assembles; Matched moulds gets into automatic operational mode, and cure time is 10-15min, vulcanizes the die sinking that finishes and takes out the product that vulcanizates, and realizes the general injection umbrella cover; Step 4 is cleaned out the unnecessary overlap of the said product that vulcanizates, and carries out self check; Appearance requirement is: the umbrella cover sulfuration is complete, and impurity and notch area are no more than 25mm
2, cup depth surpasses 0.5mm, and the product defects gross area is no more than 0.2% of product area.
The processing method of the compound bracket insulator of above-mentioned porcelain, in the preferred said step 1, said porcelain core rod is selected cylindrical porcelain core rod.
The processing method of the compound bracket insulator of above-mentioned porcelain, in the preferred said step 1, said binding agent is a cement bonding agent.
The processing method of the compound bracket insulator of above-mentioned porcelain, in the preferred said step 1, annex selection gold utensil under annex and the bracket on the said bracket.
The present invention adopts the porcelain core rod to replace the silicon rubber umbrella cover of glass-epoxy rod and general injection, in terms of existing technologies, has following advantage:
The first, the compound bracket insulator of this porcelain had both kept the good rigidly of porcelain insulator, and the advantage that compressive property is strong has combined the hydrophobicity that has of composite insulator again, is prone to the advantage of the grade of transportation.
The second, the compound bracket insulator of this porcelain adopts the porcelain core rod to replace the glass fiber resin rod, and its porcelain spare is a cylindrical bar magnet, and simple shape can effectively reduce the inhomogeneous deterioration that causes of stress; Also can reduce simultaneously the big problem of compound bracket bending resistance distortion, and then reduce contact line in normal operating distortion, with the safe operation of better assurance electric railway.
Three, the umbrella cover material of the compound bracket insulator of this porcelain is processed by organic material silicon rubber, reduces the application of the tight inorganic material of structure effectively, has not only alleviated the effective weight of product, has taken into account the advantage of composite material simultaneously again; Insulator surface becomes organic hydrophobic surface by original inorganic hydrophilic property surface, has strengthened resistant effectively and has dodged performance; Because the migration of hydrophobicity of silastic surface has been saved the cost of cleaning.
Four, adopt the general injection umbrella cover; High-temperature silicon disulfide rubber external seal technology; Bonding agent firmly is sealed in silicon rubber inside; Completely cut off with getting in touch of outside atmosphere and made bonding agent be in the airtight environment to reduce the probability that bonding agent absorbs moisture and carbon dioxide, the reduction of the mechanical performance that minimizing causes because of the moisture expantion of bonding agent and the destruction of product.
Description of drawings
Fig. 1 is the structural representation of the compound bracket insulator of porcelain of the present invention embodiment.
Embodiment
For make above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, below in conjunction with accompanying drawing and embodiment the present invention done further detailed explanation.
With reference to Fig. 1, Fig. 1 is the structural representation of the compound bracket insulator of porcelain of the present invention embodiment, comprising: annex 4 under annex 1 on the bracket, porcelain core rod 2, the umbrella cover of being made up of a plurality of full skirts 3 and the bracket; Wherein, on the bracket under annex 1 and the bracket annex 4 be fixedly connected on the two ends of porcelain core rod 2; Umbrella cover 3 is arranged on the bracket under the annex 1 and bracket between the annex 4; And umbrella cover 3 is the silicon rubber umbrella cover.
The compound bracket insulator of this porcelain embodiment had both kept the strong advantage of good rigidly, compressive property of porcelain insulator, had had the hydrophobicity of composite insulator simultaneously again, was prone to the advantage of the grade of transportation.And umbrella cover 3 is processed by organic material silicon rubber, reduces the application of the tight inorganic material of structure effectively, in the effective weight that has alleviated product, has taken into account the advantage of composite material simultaneously again.Insulator surface becomes organic hydrophobic surface by original inorganic hydrophilic property surface, has strengthened resistant effectively and has dodged performance.Because the migration of hydrophobicity of silastic surface has been saved the cost of cleaning.
In the specific implementation, porcelain core rod 2 can adopt cylindrical, such benefit to be, simple shape can effectively reduce the inhomogeneous deterioration that causes of stress; Also can reduce simultaneously the big problem of compound bracket bending resistance distortion, and then reduce contact line in normal operating distortion, with the safe operation of better assurance electric railway.
In addition, among this embodiment, on the bracket under annex 1 and the bracket annex 4 be gold utensil.Annex 1 is connected with porcelain core rod 2 through bonding agent 5 on the bracket; Annex 4 is connected with porcelain core rod 2 through bonding agent 5 on the bracket.Umbrella cover 3 is the umbrella cover of integral injection molding; Based on high-temperature silicon disulfide rubber external seal technology; Bonding agent firmly is sealed in silicon rubber inside; Completely cut off with getting in touch of outside atmosphere and made bonding agent be in the airtight environment to reduce the probability that bonding agent absorbs moisture and carbon dioxide, the reduction of the mechanical performance that minimizing causes because of the moisture expantion of bonding agent and the destruction of product.
Processing technology in the face of the compound bracket insulator of porcelain of the present invention describes down.
1, prepares
The porcelain core rod 2 of choosing qualified specific length and two ends be connected on the gold utensil bracket annex 4 on the annex 1 and bracket; With cement binder the porcelain core rod is connected firmly with gold utensil.Bonding agent contacts with porcelain core rod 2 with the gold utensil inner chamber fully, requires defective such as no bubble and impurity in the bonding agent.Use tensile testing machine to stretch 50%, specified mechanical load 15s; Visual examination mandrel surface color and luster is even, and is flawless; Can change next process production over to.
2, injection moulding
Corresponding injection molding is installed on injector, is treated that temperature rises to for example 175 ℃～185 ℃ of the temperature of setting, puts into material storage tube with ready silicon rubber; Put into the porcelain core rod that assembles according to drawing requirement.Matched moulds gets into automatic operational mode (cure time is at 10-15min), vulcanizes the die sinking that finishes and takes out the product that vulcanizates.Cleared up mould, put into the porcelain core rod that assembles and carry out next mould production.
Use special-purpose frock that unnecessary overlap is cleaned out, carry out self check.Appearance requirement is: the umbrella cover sulfuration is complete, and impurity and notch area are no more than 25mm
2, cup depth surpasses 0.5mm, and the product defects gross area is no more than 0.2% of product area.
3, routine test
Carry out 50% specified mechanical load tension test, power frequency 1min resistance test can be packed after the pass the test and dispatched from the factory.
More than compound bracket insulator of a kind of porcelain provided by the present invention and processing method thereof are described in detail; Used specific embodiment among this paper principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, part all can change on embodiment and range of application.In sum, this description should not be construed as limitation of the present invention.
Claims (9)
1. the compound bracket insulator of porcelain is characterized in that, comprising:
Annex (4) under annex on the bracket (1), porcelain core rod (2), the umbrella cover of forming by a plurality of full skirts (3) and the bracket; Wherein,
Annex (4) is fixedly connected on the two ends of said porcelain core rod (2) under annex on the said bracket (1) and the said bracket; Said umbrella cover (3) is arranged under annex on the said bracket (1) and the said bracket between the annex (4); And said umbrella cover (3) is the silicon rubber umbrella cover.
2. the compound bracket insulator of porcelain according to claim 1 is characterized in that, said porcelain core rod (2) is cylindrical.
3. the compound bracket insulator of porcelain according to claim 2 is characterized in that annex (4) is a gold utensil under annex on the said bracket (1) and the said bracket.
4. the compound bracket insulator of porcelain according to claim 3 is characterized in that, annex on the said bracket (1) is connected with said porcelain core rod (2) through bonding agent (5); Annex on the said bracket (4) is connected with said porcelain core rod (2) through bonding agent (5).
5. the compound bracket insulator of porcelain according to claim 4 is characterized in that said umbrella cover (3) is the umbrella cover of integral injection molding.
6. the processing method of the compound bracket insulator of porcelain is characterized in that, comprises the steps:
Step 1 is chosen on porcelain core rod (2), the bracket annex (4) under the annex (1) and bracket, with binding agent annex (4) under annex (1) and the bracket on the said bracket is fixedly connected on the two ends of said porcelain core rod (2), obtains the porcelain core rod that assembles;
Step 2 uses tensile testing machine that the porcelain core rod that assembles is stretched 50%, specified mechanical load is set continues 15s; Carrying out outward appearance detects;
Step 3 meets the requirements if outward appearance detects, and injection molding is installed on injector, when treating that temperature rises to 175 ℃～185 ℃, silicon rubber is put into material storage tube, puts into the said porcelain core rod that assembles; Matched moulds gets into automatic operational mode, and cure time is 10-15min, vulcanizes the die sinking that finishes and takes out the product that vulcanizates, and realizes general injection umbrella cover (3);
Step 4 is cleaned out the unnecessary overlap of the said product that vulcanizates, and carries out self check; Appearance requirement is: umbrella cover (3) sulfuration is complete, and impurity and notch area are no more than 25mm
2, cup depth surpasses 0.5mm, and the product defects gross area is no more than 0.2% of product area.
7. the processing method of the compound bracket insulator of porcelain according to claim 6 is characterized in that, in the said step 1, said porcelain core rod (2) is selected cylindrical porcelain core rod.
8. the processing method of the compound bracket insulator of porcelain according to claim 7 is characterized in that, in the said step 1, said binding agent is a cement bonding agent.
9. the processing method of the compound bracket insulator of porcelain according to claim 8 is characterized in that, in the said step 1, annex (4) is selected gold utensil under annex on the said bracket (1) and the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100091187A CN102592755A (en) | 2011-01-17 | 2011-01-17 | Ceramic compound bracket insulator and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100091187A CN102592755A (en) | 2011-01-17 | 2011-01-17 | Ceramic compound bracket insulator and processing method thereof |
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| CN102592755A true CN102592755A (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100091187A Pending CN102592755A (en) | 2011-01-17 | 2011-01-17 | Ceramic compound bracket insulator and processing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015176344A1 (en) * | 2014-05-21 | 2015-11-26 | 北京铁道工程机电技术研究所有限公司 | Electric multiple unit car-roof antifouling flash composite insulator |
| CN105575558A (en) * | 2016-01-26 | 2016-05-11 | 西安唯实输配电技术有限公司 | Long-creepage distance horizontal and inclined cantilever composite insulator for electrified railway and manufacturing method of long-creepage distance horizontal and inclined cantilever composite insulator |
| CN110349716A (en) * | 2019-08-07 | 2019-10-18 | 醴陵华鑫高能电气有限公司 | Hollow porcelain composite insulator and its processing method |
| CN111844415A (en) * | 2020-07-25 | 2020-10-30 | 杨星 | Electric power insulator preparation mould |
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| CN2202961Y (en) * | 1994-08-13 | 1995-07-05 | 郭晨曦 | Plateau type bar insulator for ac 25 KV electric railway |
| CN2891233Y (en) * | 2006-04-25 | 2007-04-18 | 冯长富 | Reinforced composite blade type support insulator |
| CN101587764A (en) * | 2009-07-11 | 2009-11-25 | 贾传熙 | Wrist composite insulator |
| JP2010102974A (en) * | 2008-10-24 | 2010-05-06 | West Japan Railway Co | Insulator for electric train line |
| CN201918232U (en) * | 2011-01-17 | 2011-08-03 | 保定冀开电力器材有限公司 | Ceramic composite wrist-arm insulator |
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2011
- 2011-01-17 CN CN2011100091187A patent/CN102592755A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202961Y (en) * | 1994-08-13 | 1995-07-05 | 郭晨曦 | Plateau type bar insulator for ac 25 KV electric railway |
| CN2891233Y (en) * | 2006-04-25 | 2007-04-18 | 冯长富 | Reinforced composite blade type support insulator |
| JP2010102974A (en) * | 2008-10-24 | 2010-05-06 | West Japan Railway Co | Insulator for electric train line |
| CN101587764A (en) * | 2009-07-11 | 2009-11-25 | 贾传熙 | Wrist composite insulator |
| CN201918232U (en) * | 2011-01-17 | 2011-08-03 | 保定冀开电力器材有限公司 | Ceramic composite wrist-arm insulator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015176344A1 (en) * | 2014-05-21 | 2015-11-26 | 北京铁道工程机电技术研究所有限公司 | Electric multiple unit car-roof antifouling flash composite insulator |
| US10179594B2 (en) | 2014-05-21 | 2019-01-15 | Beijing Railway Institute Of Mechanical & Electrical Engineering Co., Ltd. | Anti-pollution-flashover locomotive roof composite insulator |
| CN105575558A (en) * | 2016-01-26 | 2016-05-11 | 西安唯实输配电技术有限公司 | Long-creepage distance horizontal and inclined cantilever composite insulator for electrified railway and manufacturing method of long-creepage distance horizontal and inclined cantilever composite insulator |
| CN110349716A (en) * | 2019-08-07 | 2019-10-18 | 醴陵华鑫高能电气有限公司 | Hollow porcelain composite insulator and its processing method |
| CN111844415A (en) * | 2020-07-25 | 2020-10-30 | 杨星 | Electric power insulator preparation mould |
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Application publication date: 20120718 |