CN105551694A - Subway contact line rigid suspension composite insulator and manufacturing method thereof - Google Patents
Subway contact line rigid suspension composite insulator and manufacturing method thereof Download PDFInfo
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- CN105551694A CN105551694A CN201610051720.XA CN201610051720A CN105551694A CN 105551694 A CN105551694 A CN 105551694A CN 201610051720 A CN201610051720 A CN 201610051720A CN 105551694 A CN105551694 A CN 105551694A
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- insulation
- gold utensil
- composite insulator
- contact line
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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
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/04—Chains; Multiple chains
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
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Abstract
The invention relates to a subway contact line rigid suspension composite insulator and a manufacturing method thereof. The subway contact line rigid suspension composite insulator comprises an upper fitting, an insulating core rod, a lower fitting, an insulating pin and insulating silicon rubber umbrella covers. The insulating core rod is arranged between the upper fitting and the lower fitting, and through holes are processed on the upper fitting and the lower fitting; the upper fitting and the lower fitting are reinforced by the insulating pin; the insulating pin is coated with an epoxy resin and polyamide compounded adhesive; and both ends of the insulating pin are wrapped with the insulating silicon rubber umbrella covers. According to a drawing size, the connection fittings at both ends are detected, and inner holes are cleaned up by acetone; the insulating core rod is detected, and the surface of the core rod is cleaned up by alcohol; the core rod and the fittings at both the ends are pressure-welded and assembled; the through holes are processed at both the ends of the assembled insulating core rod; the insulating pin is coated with the adhesive; the insulating pin passes through the insulating core rod for fixing; then curing is carried out; a coupling agent is smeared; and the obtained product is placed into an injection-moulding machine die and silicon rubber is injected to produce the subway rigid suspension composite insulator. The subway contact line rigid suspension composite insulator has the advantages of self-destruction resistance, light weight, excellent hydrophobicity, high foul resistance and excellent electrical performance.
Description
Technical field
The present invention relates to subway electrified contacting nets field, be specifically related to top, a kind of tunnel steel construction piece and be connected with throughout the year charged bus-bar by insulator, the rigid suspended composite insulator of subway contact line and manufacture method thereof.
Background technology
Since track traffic to be defined as the large policy in the direction of first developing by country, by the restriction that land resource is less and less, and energy is using underground space fully, our track traffic is to develop subway for direction, and the Development of underground railway of China just launches in the rapid city at provincial capital and emphasis.The technical merit of subway is the same with the high ferro of China, and autonomous innovation is also with rapid changepl. never-ending changes and improvements, and technical barrier is captured by us one by one.Subway tunnel narrow space, how safe and reliable power supply, ensure metro safety this problem on schedule, be the focus that everybody pays close attention to all the time.
The supply power mode of the subway of China be top in tunnel concrete on support steel is installed, install bus-bar by insulator lower end fastener below support, bus-bar has just had power electric after contacting with the pantograph of locomotive.And the insulator of top, tunnel support steel hanging electrified contacting nets, no matter this insulator is ceramic, or silicon rubber, its basic structure is all like this, and upper end is screw rod, and lower end is screw, and centre is the umbrella disk of insulation.Insulator upper end screw rod and support steel are fixed together by nut, so also cry rigid suspended connection.
No matter this insulator is ceramic, or silicon rubber, if require that it will be perfectly safe reliably.First be requirement it to have the high class of insulation (usual working voltage 1.5KV) level.Because the restriction of tunnel clearance distance upper-lower height, cause certain difficulty to the electric insulation design technical parameter of insulator (retting-flax wastewater, lightning impulse, dry tolerance, wet tolerance, structure height etc.) and manufacturing process.Secondly, insulator bears the huge weight of contact line, so insulator will have good hot strength.And by the impact of motorcycle pantograph Frictional Slipping, within 24 hours, in vibrations, require that it will have excellent bending strength and anti-fatigue performance.
At present, in the world with domestic all based on porcelain.And porcelain is moist by tunnel, air flowing is poor, and filthy serious impact, easy contamination, causes its electric insulation value to reduce, the easy short circuit flashover of insulator surface, affects railway security reliability service.The two ends connecting screw rod of porcelain and screw are fitted together by cement and adhesive glue, and in the tunnel of humidity, the bending force effect that long-term tension stretch and vibrations are waved, mucilage binding position easily loosens, and runs hide some dangers for metro safety.Its heavier-weight, the hardware size that whole tunnel top is selected will strengthen, and virtually too increase the cost of subway, and from also uneconomical economic benefit, security reliability is also had a greatly reduced quality.
Composite insulator is with its anti-self-destruction, lightweight, and hydrophobicity is excellent, and resistance to filthy ability is strong, and the excellent feature of electric property, always by industry is praised highly.That high-voltage fence or high ferro contact line are all in use in enormous quantities.Composite insulator usage quantity is considerably beyond the quantity of porcelain.Invention design is a kind of rational in infrastructure, and mechanical and that electric property the is more excellent rigid suspended composite insulator of subway is ideal and the pursuit of industry.
Composite insulator is made up of three parts.The 1 epoxy resin fiberglass plug playing mechanical stretching effect and interior insulating effect, the 2 silicon rubber umbrella disks playing external insulation effect, the two ends gold utensil of 3 connection functions.Gold utensil and plug, by prior design-calculated mechanical analysis, adopt press-connection machine to crimp.Press-connection machine adopts computer program hydraulic control, and eight pawl crimping are synchronously stressed, and because gold utensil is different with the hardness of plug, gold utensil endoporus has fine thread, after gold utensil is stressed, just part gold utensil is compressed into the top layer of plug.Glass fiber reinforced epoxy resin composite material plug, density is 1/4 of steel, and hardness is 71 ~ 75, and hot strength is suitable with steel, increases pulling force by sliding friction.This crimping mode at home and abroad widely uses, and has had the history of 30 years.
About the rigid suspended composite insulator of subway contact line, in patent No. ZL200720311416.0, described overall external insulation adopts directional fiber and modification unsaturated flame-retarded resin synthetic sheet material mold pressing or injection moulding.Metal screw and screw embed above-mentioned material, are formed by hot moulding manufacture.We know, in thermoset resin material, the material based on unsaturated-resin, be no matter mechanical performance and electric property and epoxide resin material, silastic material all can not be mentioned in the same breath, and is the poorest material.This unsaturated-resin material, easily absorbs water, so electric property cannot ensure the insulation safety of insulator.Easily aging, so, it is subject to the harsh environmental effects of subway tunnel for a long time with the connection of metal screw screw, swing just easily lax by the pulling force of contact line and pantograph friction, cause insulator to chap to puncture or gold utensil comes off, for locomotive safety running hides some dangers for, there is the inappropriate problem of inborn the selection of material.
About the rigid suspended composite insulator of subway contact line, in patent ZL201310715694.2 and No. ZL201320852624.7, there is following problem:
1) Material selec-tion aspect does not have new meaning
A, interior insulation adopt epoxy resin plug, and b, external insulation adopt silicon rubber three umbrella disks that vary in size, and c, two ends are that gold utensil is connected with plug.This structure is the general technique of current composite insulator producer.GB GB19519-2014 and TB/T3199.2-2008 has had basic definition to this composite insulator.
2) structure height of the screw diameter described in and the straight warp of screw and composite insulator, these parameters are Metro Design required standard sizes.
3) one, key has avoided epoxy resin plug how to be connected with two ends gold utensil, thus ensure that hot strength and bending strength can meet index request, ensures this most key problem of safe railway operation.Its two, avoided the diameter of selected epoxy resin fiberglass plug, that is there is no the theoretical foundation of full and accurate calculating.Its three, do not provide this significant dimensions of the thickness of silicone rubber jacket.Its four, the umbrella disk diameter provided is the equal diameter umbrella of three 180MM is also not through detailed theory calculate, does not have scientific basis support.The silicon rubber umbrella disk of three 180MM is the wastes to material, and the product cost of working it out does not meet the requirements, and product does not have the market competitiveness.
Because, distance is very limited up and down for the clear space of subway tunnel, the size of each parts is calculated with millimeter, specific to this composite insulator, only have in the coverage up and down of 165MM in structure height, should ensure that the electric parameter of composite insulator meets the requirements, be that hot strength and bending strength maximize again.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of this invention is to provide the rigid suspended composite insulator of a kind of subway contact line and manufacture method thereof, having anti-self-destruction, lightweight, hydrophobicity is excellent, and resistance to filthy ability is strong, the feature that electric property is excellent.
To achieve these goals, the technical solution used in the present invention is:
The rigid suspended composite insulator of a kind of subway contact line, comprise gold utensil, insulation mandrel, lower gold utensil, insulation pin, electrically insulating silicone rubber umbrella cover, insulation mandrel is provided with between upper gold utensil and lower gold utensil, and through hole is processed on upper gold utensil and lower gold utensil, reinforced by insulation pin, insulation pin is smeared epoxy resin and is joined polyamide adhesive, insulation pin two ends wrap insulate silicon rubber umbrella.
Described upper gold utensil is φ 7mm with lower gold utensil being processed the through-hole diameter coordinated with insulation pin.
Described upper gold utensil one end is provided with the screw rod that diameter is M16, and lower gold utensil one end is provided with the screw that diameter is M16.
The sheath entire body diameter of described silastic material is 57mm, and two umbrella disk diameters are 147mm.
Described insulation mandrel adopts high strength E glass fibre or ECR glass fibre or basalt fibre or aramid fiber reinforced epoxy vacuum-latexed rod, and insulation mandrel diameter phi is not less than 36mm.
Described pin adopts high strength E glass fibre or ECR glass fibre or basalt fibre or aramid fiber to strengthen pultrusion insulation mandrel, and diameter is φ 6mm.
The connection of described insulation mandrel and upper gold utensil, lower gold utensil, first adopts crimp technology technique, then links fixing by wearing insulation pin, realizes dual fail-safe.
A manufacture method for the rigid suspended composite insulator of subway contact line, comprises the following steps:
1) according to figure paper size, the two ends processed are connected gold utensil and detects, and endoporus acetone is cleaned up;
2) according to figure paper size, the insulation mandrel apparent size of polishing through appearance is detected, and mandrel surface is clean with alcohol washes, according to GB19519, testing performance index is carried out to insulation mandrel simultaneously;
3) plug and two ends gold utensil are carried out crimping assembling, ensure that structure height is 165mm;
4) on the gold utensil hole, insulation core body two ends assembled, get through hole with the drill bit of φ 7mm, and clean out dust;
5) on the insulation pin of φ 6mm, smear epoxy resin and join polyamide adhesive, break-through is adhesively fixed;
6) will scribble the insulation core body of adhesive with insulation pin, put into baking oven heating and make it fully solidify, step solidification control is: 50 ° of C/1H, 80 ° of C/1H, 100 ° of C/1H.Heating is stopped to allow Temperature fall again;
7) cool to after 50 ° of C until above-mentioned insulation core body, take out from baking oven, the part of sulphurated siliastic to smear one deck coupling agent, coupling agent is KH560;
8) will smear coupling agent, with the insulation core body of two ends gold utensil, put into the press injector mould of two umbrellas that are prepared in advance, note silicon rubber after closed die, cure time, according to prior technique initialization, makes the rigid suspended composite insulator of subway;
9), after taking out product from mould, Related product delivery test is done according to TB/T3199.2-2008; After having tested, qualified product is packed.
The invention has the beneficial effects as follows:
Composite insulator of the present invention is with its anti-self-destruction, lightweight, and hydrophobicity is excellent, resistance to filthy ability is strong, and the excellent feature of electric property, always by industry is praised highly, be high-voltage fence or high ferro contact line all in use in enormous quantities, composite insulator usage quantity is considerably beyond the quantity of porcelain.Reasonable in design, mechanical and that electric property the is more excellent rigid suspended composite insulator of subway is ideal and the pursuit of industry.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein, 1 is upper gold utensil; 2 is insulation pin; 3 is insulation mandrel; 4 is electrically insulating silicone rubber umbrella cover; 5 is lower gold utensil.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
As shown in Figure 1, the rigid suspended composite insulator of a kind of subway contact line, comprise gold utensil 1, insulation mandrel 3, lower gold utensil 5, insulation pin 2, electrically insulating silicone rubber umbrella cover 4, insulation mandrel 3 is provided with between upper gold utensil 1 and lower gold utensil 5, and through hole is processed on upper gold utensil 1 with lower gold utensil 5, reinforced by insulation pin 2, insulation pin 2 is smeared epoxy resin and is joined polyamide adhesive, insulation pin 2 two ends wrap insulate silicon rubber umbrella 4.
Described upper gold utensil 1 is φ 7mm with lower gold utensil 5 being processed the through-hole diameter coordinated with insulation pin 2.
Described upper gold utensil 1 one end is provided with the screw rod that diameter is M16, and lower gold utensil 5 one end is provided with the screw that diameter is M16.
The sheath entire body diameter of described silastic material 4 is 57mm, and two umbrella disk diameters are 147mm.
Described insulation mandrel 3 adopts high strength E glass fibre or ECR glass fibre or basalt fibre or aramid fiber reinforced epoxy vacuum-latexed rod, and insulation mandrel 3 diameter phi is not less than 36mm.
Described pin 2 adopts high strength E glass fibre or ECR glass fibre or basalt fibre or aramid fiber to strengthen pultrusion insulation mandrel, and diameter is φ 6mm.
The connection of described insulation mandrel 3 and upper gold utensil 1, lower gold utensil 5, first adopts crimp technology technique, then links fixing by wearing insulation pin 2, realizes dual fail-safe.
Operation principle of the present invention is:
The supply power mode of subway be top in tunnel concrete on support steel is installed, install bus-bar by insulator lower end fastener below support, bus-bar has just had power electric after contacting with the pantograph of locomotive.
A manufacture method for the rigid suspended composite insulator of subway contact line, is characterized in that, comprise the following steps:
1) according to figure paper size, the two ends processed are connected gold utensil and detects, and endoporus acetone is cleaned up;
2) according to figure paper size, the insulation mandrel apparent size of polishing through appearance is detected.And mandrel surface is clean with alcohol washes, according to GB19519, testing performance index is carried out to insulation mandrel simultaneously;
3) plug and two ends gold utensil are carried out crimping assembling, ensure that structure height is 165mm;
4) on the gold utensil hole, insulation core body two ends assembled, get through hole with the drill bit of φ 7mm, and clean out dust;
5) on the insulation pin of φ 6mm, smear epoxy resin and join polyamide adhesive, break-through is adhesively fixed;
6) will scribble the insulation core body of adhesive with insulation pin, put into baking oven heating and make it fully solidify, step solidification control is: 50 ° of C/1H, 80 ° of C/1H, 100 ° of C/1H.Heating is stopped to allow Temperature fall again;
7) cool to after 50 ° of C until above-mentioned insulation core body, take out from baking oven, the part of sulphurated siliastic to smear one deck coupling agent, coupling agent is KH560;
8) will smear coupling agent, with the insulation core body of two ends gold utensil, put into the press injector mould of two umbrellas that are prepared in advance, note silicon rubber after closed die, cure time, according to prior technique initialization, makes the rigid suspended composite insulator of subway;
9), after taking out product from mould, Related product delivery test is done according to TB/T3199.2-2008; After having tested, qualified product is packed.
Claims (8)
1. the rigid suspended composite insulator of subway contact line, comprise gold utensil (1), insulation mandrel (3), lower gold utensil (5), insulation pin (2), electrically insulating silicone rubber umbrella cover (4), it is characterized in that, insulation mandrel (3) is provided with between upper gold utensil (1) and lower gold utensil (5), and through hole is processed on upper gold utensil (1) with lower gold utensil (5), reinforced by insulation pin (2), insulation pin (2) is smeared epoxy resin and is joined polyamide adhesive, insulation pin (2) two ends wrap insulate silicon rubber umbrella (4).
2. the rigid suspended composite insulator of a kind of subway contact line according to claim 1, is characterized in that, it is φ 7mm that described upper gold utensil (1) and lower gold utensil (5) above process the through-hole diameter coordinated with insulation pin (2).
3. the rigid suspended composite insulator of a kind of subway contact line according to claim 1, is characterized in that, described upper gold utensil (1) one end is provided with the screw rod that diameter is M16, and lower gold utensil (5) one end is provided with the screw that diameter is M16.
4. the rigid suspended composite insulator of a kind of subway contact line according to claim 1, is characterized in that, the sheath entire body diameter of described silastic material (4) is 57mm, and two umbrella disk diameters are 147mm.
5. the rigid suspended composite insulator of a kind of subway contact line according to claim 1, it is characterized in that, described insulation mandrel (3) adopts high strength E glass fibre or ECR glass fibre or basalt fibre or aramid fiber reinforced epoxy vacuum-latexed rod, and insulation mandrel (3) diameter phi is not less than 36mm.
6. the rigid suspended composite insulator of a kind of subway contact line according to claim 1, it is characterized in that, described pin (2) adopts high strength E glass fibre or ECR glass fibre or basalt fibre or aramid fiber to strengthen pultrusion insulation mandrel, and diameter is φ 6mm.
7. the rigid suspended composite insulator of a kind of subway contact line according to claim 1, it is characterized in that, the connection of described insulation mandrel (3) and upper gold utensil (1), lower gold utensil (5), first adopt crimp technology technique, linking fixing by wearing insulation pin (2) again, realizing dual fail-safe.
8. a manufacture method for the rigid suspended composite insulator of subway contact line, is characterized in that, comprise the following steps:
1) according to figure paper size, the two ends processed are connected gold utensil and detects, and endoporus acetone is cleaned up;
2) according to figure paper size, the insulation mandrel apparent size of polishing through appearance is detected, and mandrel surface is clean with alcohol washes, according to GB19519, testing performance index is carried out to insulation mandrel simultaneously;
3) plug and two ends gold utensil are carried out crimping assembling, ensure that structure height is 165mm;
4) on the gold utensil hole, insulation core body two ends assembled, get through hole with the drill bit of φ 7mm, and clean out dust;
5) on the insulation pin of φ 6mm, smear epoxy resin and join polyamide adhesive, break-through is adhesively fixed;
6) will scribble the insulation core body of adhesive with insulation pin, put into baking oven heating and make it fully solidify, step solidification control is: 50 ° of C/1H, 80 ° of C/1H, 100 ° of C/1H, then stops heating allow Temperature fall;
7) cool to after 50 ° of C until above-mentioned insulation core body, take out from baking oven, the part of sulphurated siliastic to smear one deck coupling agent, coupling agent is KH560;
8) will smear coupling agent, with the insulation core body of two ends gold utensil, put into the press injector mould of two umbrellas that are prepared in advance, note silicon rubber after closed die, cure time, according to prior technique initialization, makes the rigid suspended composite insulator of subway;
9), after taking out product from mould, Related product delivery test is done according to TB/T3199.2-2008; After having tested, qualified product is packed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610051720.XA CN105551694A (en) | 2016-01-26 | 2016-01-26 | Subway contact line rigid suspension composite insulator and manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117077A (en) * | 2017-05-12 | 2017-09-01 | 西安铁路科学技术研究发展有限责任公司 | A kind of insulating slide structure and preparation method thereof |
| CN108861994A (en) * | 2018-05-24 | 2018-11-23 | 中国电力科学研究院有限公司 | Hot line maintenance mentions the Line tool with lightweight |
| CN110027131A (en) * | 2019-04-18 | 2019-07-19 | 袁勇军 | A kind of preparation method at block of bow collector of electric locomotive insulation bow angle |
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| CN103646730A (en) * | 2013-12-23 | 2014-03-19 | 奉新国光电气有限公司 | Rigid suspension composite insulator for metros |
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| CN205542207U (en) * | 2016-01-26 | 2016-08-31 | 西安唯实输配电技术有限公司 | Subway contact net rigid suspension composite insulator |
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| JPS63198214A (en) * | 1987-02-11 | 1988-08-16 | 日本碍子株式会社 | Corrosion resistant insulator |
| CN202473424U (en) * | 2012-02-14 | 2012-10-03 | 山东齐林电力设备有限公司 | Claviform suspension-type composite insulator special for high-speed rail line |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107117077A (en) * | 2017-05-12 | 2017-09-01 | 西安铁路科学技术研究发展有限责任公司 | A kind of insulating slide structure and preparation method thereof |
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| CN108861994A (en) * | 2018-05-24 | 2018-11-23 | 中国电力科学研究院有限公司 | Hot line maintenance mentions the Line tool with lightweight |
| CN110027131A (en) * | 2019-04-18 | 2019-07-19 | 袁勇军 | A kind of preparation method at block of bow collector of electric locomotive insulation bow angle |
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