CN201918232U - Ceramic composite wrist-arm insulator - Google Patents
Ceramic composite wrist-arm insulator Download PDFInfo
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- CN201918232U CN201918232U CN2011200129993U CN201120012999U CN201918232U CN 201918232 U CN201918232 U CN 201918232U CN 2011200129993 U CN2011200129993 U CN 2011200129993U CN 201120012999 U CN201120012999 U CN 201120012999U CN 201918232 U CN201918232 U CN 201918232U
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- bracket
- insulator
- porcelain
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- wrist
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Abstract
The utility model relates to a ceramic composite wrist-arm insulator, which comprises a wrist-arm upper accessory (1), a ceramic core rod (2), an umbrella sleeve (3) and a wrist-arm lower accessory (4). Wherein the umbrella sleeve (3) consists of a plurality of umbrella skirts, the wrist-arm upper accessory (1) and the wrist-arm lower accessory (4) are fixedly and respectively connected with the two ends of the ceramic core rod (2), the umbrella sleeve (3) is arranged between the wrist-arm upper accessory (1) and the wrist-arm lower accessory (4), and the umbrella sleeve (3) is the silicon rubber umbrella sleeve. The ceramic composite wrist-arm insulator has the advantages of good rigidity and strong compressive property of the traditional ceramic insulator and hydrophobicity and easy transportation of the composite insulator.
Description
Technical field
The utility model relates to the electrification railway contact net insulator, the compound bracket insulator of the porcelain that especially a kind of contact nets in electrified railways are used.
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 is very fine and close material, 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 is subjected to 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 energy 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 in long-time running owing to various physics and chemical change, make its electric property and mechanical strength in time increase and deterioration gradually.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.
The utility model content
The utility model purpose is to provide a kind of porcelain compound bracket insulator, and this insulator has the good rigidly and the strong advantage of compressive property of traditional porcelain insulator concurrently, and composite insulator have a hydrophobicity, easily the advantage of transportation.
The compound bracket insulator of a kind of porcelain of the utility model 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 described bracket under annex and the described bracket annex be fixedly connected on the two ends of described porcelain core rod; Described umbrella cover is arranged on the described bracket under the annex and described bracket between the annex; And described umbrella cover is the silicon rubber umbrella cover.
The compound bracket insulator of above-mentioned porcelain, preferred described porcelain core rod is cylindrical.
The compound bracket insulator of above-mentioned porcelain, on the preferred described bracket under annex and the described bracket annex be gold utensil.
The compound bracket insulator of above-mentioned porcelain, annex is connected with described porcelain core rod by bonding agent on the preferred described bracket; Annex is connected with described porcelain core rod by bonding agent on the described bracket.
The compound bracket insulator of above-mentioned porcelain, preferred described umbrella cover is the umbrella cover of integral injection molding.
The utility model 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 combines the hydrophobicity that has of composite insulator again, easily 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 made 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 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 and make bonding agent be in the airtight environment with getting in touch of outside atmosphere to reduce the probability that bonding agent absorbs moisture and carbon dioxide, reduced the reduction of the mechanical performance that the moisture expantion because of bonding agent causes and the destruction of product.
Description of drawings
Fig. 1 is the structural representation of the compound bracket insulator of the utility model porcelain embodiment.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
With reference to Fig. 1, Fig. 1 is the structural representation of the compound bracket insulator of the utility model porcelain 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 that has of composite insulator simultaneously again, easily the advantage of the grade of transportation.And umbrella cover 3 is made 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 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 by bonding agent 5 on the bracket; Annex 4 is connected with porcelain core rod 2 by 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 and make bonding agent be in the airtight environment with getting in touch of outside atmosphere to reduce the probability that bonding agent absorbs moisture and carbon dioxide, reduced the reduction of the mechanical performance that the moisture expantion because of bonding agent causes and the destruction of product.
Processing technology to the compound bracket insulator of the utility model porcelain describes below.
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 fully with the gold utensil inner chamber, 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; Require to put into the porcelain core rod that assembles according to drawing.Matched moulds enters 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 be dispatched from the factory.
More than the compound bracket insulator of a kind of porcelain provided by the utility model is described in detail, used specific embodiment herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, part in specific embodiments and applications all can change.In sum, this description should not be construed as restriction of the present utility model.
Claims (5)
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 described porcelain core rod (2) under annex on the described bracket (1) and the described bracket; Described umbrella cover (3) is arranged under annex on the described bracket (1) and the described bracket between the annex (4); And described umbrella cover (3) is the silicon rubber umbrella cover.
2. the compound bracket insulator of porcelain according to claim 1 is characterized in that described 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 described bracket (1) and the described bracket.
4. the compound bracket insulator of porcelain according to claim 3 is characterized in that,
Annex on the described bracket (1) is by bonding agent (5) and described porcelain core rod (2)
Be connected; Annex on the described bracket (4) is connected with described porcelain core rod (2) by bonding agent (5).
5. the compound bracket insulator of porcelain according to claim 4 is characterized in that described umbrella cover (3) is the umbrella cover of integral injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200129993U CN201918232U (en) | 2011-01-17 | 2011-01-17 | Ceramic composite wrist-arm insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200129993U CN201918232U (en) | 2011-01-17 | 2011-01-17 | Ceramic composite wrist-arm insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918232U true CN201918232U (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200129993U Expired - Fee Related CN201918232U (en) | 2011-01-17 | 2011-01-17 | Ceramic composite wrist-arm insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592755A (en) * | 2011-01-17 | 2012-07-18 | 保定冀开电力器材有限公司 | Ceramic compound bracket insulator and processing method thereof |
-
2011
- 2011-01-17 CN CN2011200129993U patent/CN201918232U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592755A (en) * | 2011-01-17 | 2012-07-18 | 保定冀开电力器材有限公司 | Ceramic compound bracket insulator and processing method thereof |
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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 |
Granted publication date: 20110803 Termination date: 20200117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |