CN105405544A - Bar-shaped epoxy glass fiber core porcelain insulator for electrified railway contact net - Google Patents
Bar-shaped epoxy glass fiber core porcelain insulator for electrified railway contact net Download PDFInfo
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- CN105405544A CN105405544A CN201510972668.7A CN201510972668A CN105405544A CN 105405544 A CN105405544 A CN 105405544A CN 201510972668 A CN201510972668 A CN 201510972668A CN 105405544 A CN105405544 A CN 105405544A
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- insulator
- metal cap
- overcoat
- glass fiber
- epoxy glass
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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
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
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Abstract
The invention relates to a bar-shaped epoxy glass fiber core porcelain insulator for an electrified railway contact net. The bar-shaped epoxy glass fiber core porcelain insulator comprises an insulator body, an upper metal cap and a lower metal cap, wherein the insulator body comprises an insulator inner core and an insulator sheath made of porcelain materials; the insulator inner core is arranged in the insulator sheath; the insulator inner core and the insulator sheath form the solid-state body through insulating glue; two ends of the insulator inner core are projected out of the upper surface and the lower surface of the insulator sheath; the upper metal cap and the lower metal cap are fixed on the two projected ends of the insulator inner core in a compression joint mode; the end part of one end, near the insulator sheath, of the upper metal cap is in contact with the upper plane of the insulator sheath; and the end part of one end, near the insulator sheath, of the lower metal cap is in contact with the lower plane of the insulator sheath. Therefore the bar-shaped epoxy glass fiber core porcelain insulator has the advantages that the insulator body cannot easily fracture; the upper and lower metal caps can be firmly fixed; the connection among all parts is tight and firm; and the service life is long.
Description
Technical field
The present invention relates to a kind of electrification railway contact net clavate epoxy glass fiber core porcelain insulator.
Background technology
At present, the bar-shaped porcelain insulator that electrification railway contact net routine uses, its structure is generally comprise porcelain piece, porcelain piece comprises porcelain core and is located at the full skirt outside porcelain core, the two ends of porcelain piece are also fixed with connection gold utensil respectively, and described connection gold utensil is the two ends being adhesively fixed on porcelain piece by cement glue respectively; Porcelain piece adopts the manufacture of aluminium matter high strength china material.In recent years, due to the high speed development of China's electric railway, railway transportation has achieved repeatedly speed raising, train speed also by the 120km/h in past bring up to present 350km/h and more than, train development at a high speed, also makes the tension force of contact line constantly increase, thus make the pulling force suffered by porcelain insulator also in continuous increase, therefore, also higher designing requirement must be proposed, especially to the requirement of its mechanical bending strength to the technical performance index of contact line rod insulator.In order to make bar-shaped porcelain insulator can be adapted to the ever-increasing contact line of tension force, existing method is the diameter constantly increasing porcelain piece, makes whole bar-shaped porcelain insulator diameter become large, overall thicker, thus increases its mechanical strength; But thing followed problem is, along with the continuous speed-raising of electric railway, the volume of whole bar-shaped porcelain insulator is made to become very large to the increase of the diameter of porcelain piece and weight also increases thereupon, not only raw material can be wasted, also be inconvenient to carry, more inconvenient installation, the difficulty of maintenance also increases thereupon, in addition, in bar-shaped porcelain insulator production process, because raw-material change or artificial technological fluctuation and cause its product to there is mass-dispersion, this will inevitably affect tension and the bending resistance mechanical strength of bracket bar-shaped porcelain insulator.And this industry internal difficult problem also there is no technology so far can thoroughly overcome, bring serious potential safety hazard to the operation of high-speed electric railway.
In order to solve the problem, Chinese patent literature CN101894638B provides a kind of high voltage generating station, electrical network and electrification railway contact net composite rod insulator, its concrete structure is, containing upper, lower metal flange and insulator body, described insulator body two ends are respectively by adhesive material and upper, lower metal flange is connected, described insulator body comprises body insulation and inner core insulator, described body insulation adopts high tension insulator material integral production shaping, inner core insulator coupling is arranged in casing insulation intracoelomic cavity, described inner core insulator adopts organic insulating material to make, combined closely by insulating cement solidification and body insulation internal chamber wall, form the insulator body of solid state.For existing bar-shaped porcelain insulator, it is little, lightweight that this composite rod insulator has volume, bending strength advantage that is high, not easy fracture.
But, still there is following problem in above-mentioned this composite rod insulator: first, because described insulator body two ends are respectively by adhesive material and upper, lower metal flange is connected, described body insulation is concordant with the two ends of inner core insulator, described upper metal flange is wrapped in interior by the upper end of body insulation and inner core insulator, described lower metal flange is wrapped in interior by the lower end of body insulation and inner core insulator, and due in electric railway, the power that described insulator body is subject to is pulling force, and body insulation is made by high tension insulator material, therefore pull resistance is very poor, described like this body insulation is just very easy to fracture, tensile strength difference causes useful life extremely short, second, connection between upper and lower metal flange and insulator body is fixed by adhesive, because the adhesive adopted is all cement glue usually, easily expand with heat and contract with cold, long-term the connection between upper and lower metal flange and insulator body will be made tight in the past, even there will be the phenomenon that upper and lower metal flange and insulator body depart from, be breakneck like this, therefore there is larger potential safety hazard.
Summary of the invention
In order to overcome the problems referred to above, the present invention to society provide a kind of insulator body not easy fracture, upper and lower metal cap can be fixed more securely, connect more closely and firmly between each several part, the electrification railway contact net clavate epoxy glass fiber core porcelain insulator of longer service life.
Technical scheme of the present invention is: provide a kind of electrification railway contact net clavate epoxy glass fiber core porcelain insulator, comprise insulator body, upper metal cap and lower metal cap, the insulator overcoat that described insulator body comprises insulator inner core and makes with ceramic material, described insulator inner core is located in described insulator overcoat, and by insulating cement, both are formed the insulator body of solid state, the two ends of described insulator inner core protrude from the upper of described insulator overcoat respectively, lower plane, described upper metal cap and lower metal cap are fixed on the outstanding two ends of described insulator inner core respectively by the mode crimped, and described on, upper respectively with described insulator overcoat of the end of close insulator overcoat one end of lower metal cap, lower plane contacts.
As improvement of the present invention, also comprise packing ring, between the upper plane that described packing ring is located at described upper metal cap and described insulator overcoat and/or between the lower plane being located at described lower metal cap and described insulator overcoat.
As improvement of the present invention, described packing ring adopts high-temperature silicon disulfide rubber to make.
As improvement of the present invention, the external diameter of close insulator overcoat one end of described upper and lower metal cap is equal with the external diameter of insulator overcoat.
As improvement of the present invention, also comprise the full skirt be positioned at outside described insulator overcoat, described full skirt makes with the ceramic material identical with described insulator overcoat, and be one with insulator overcoat.
As improvement of the present invention, the umbrella of described full skirt is the alternate setting of size.
As improvement of the present invention, described insulator inner core is epoxy glass fiber leading-drawing rod.
The present invention protrudes from the upper and lower plane of described insulator overcoat respectively due to the two ends of described insulator inner core, described upper metal cap and lower metal cap are fixed on the outstanding two ends of described insulator inner core respectively by the mode crimped, and the end of close insulator overcoat one end of described upper and lower metal cap is touched with the upper and lower flat face of described insulator overcoat respectively; Can be made by the mode of crimping the two outstanding end in contact of described upper metal cap and lower metal cap and described insulator inner core more closely and firm, go up metal cap and lower metal cap so to be just not easy to come off from the outstanding two ends of described insulator inner core, and the phenomenon can not expanded with heat and contract with cold by the impact of temperature; In addition, because the end of close insulator overcoat one end of described upper and lower metal cap is touched with the upper and lower flat face of described insulator overcoat respectively, therefore described insulator overcoat is just less likely to occur fracture, therefore, the present invention have insulator body not easy fracture, upper and lower metal cap can be fixed more securely, connect more closely and firmly between each several part, the advantage of longer service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention.
Fig. 2 is the structural representation of the insulator overcoat (band full skirt) in Fig. 1.
Fig. 3 is the structural representation of the upper metal cap in Fig. 1.
Fig. 4 is the structural representation of the lower metal cap in Fig. 1.
Fig. 5 is the structural representation of the packing ring in Fig. 1.
Fig. 6 is the structural representation of the second embodiment in type of the present invention.
Embodiment
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as " " center ", " on ", D score, "front", "rear", "left", "right" in term be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " connection ", " being connected " should be interpreted broadly, and such as, can be fixedly connected with, and also can be that dismounting connects, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also can be indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term can be understood at concrete meaning of the present invention.In addition, in describing the invention, except as otherwise noted, the implication of " multiple ", " some " is two or more.
Refer to Fig. 1 to Fig. 5, what Fig. 1 to Fig. 5 disclosed is a kind of embodiment of electrification railway contact net clavate epoxy glass fiber core porcelain insulator, a kind of electrification railway contact net clavate epoxy glass fiber core porcelain insulator, comprise insulator body 1, upper metal cap 21 and lower metal cap 22, the insulator overcoat 12 that described insulator body 1 comprises insulator inner core 11 and makes with ceramic material, in the present embodiment, in order to increase creepage distance, described insulator overcoat 12 is outer is also provided with full skirt 4, described full skirt 4 makes with the ceramic material identical with described insulator overcoat 12, and are one with insulator overcoat 12, in the present invention, in order to make anti-fouling effect better, the umbrella 40 of described full skirt 4 is the alternate settings of size, and in the present embodiment, is small one and large one alternate setting.Described insulator inner core 11 is located in described insulator overcoat 12, and by insulating cement 9, both are formed the insulator body 1 of solid state, in the present invention, the two ends 111 of described insulator inner core 11, 112 upper plane 121 and the lower planes 122 protruding from described insulator overcoat 12 respectively, described upper metal cap 21 and lower metal cap 22 are fixed on the outstanding two ends 111 of described insulator inner core 11 respectively by the mode crimped, on 112, and the end 211 of close insulator overcoat 12 one end of described upper metal cap 21 and lower metal cap 22, 221 contact with the upper plane 121 of described insulator overcoat 12 and lower plane 122 respectively.
In the present invention, in order to make described insulator overcoat 12 and described upper and lower metal cap 21, better tightness between 22, thus it is inner effectively to prevent the rainwater of sleety weather from entering into insulator body 1, also comprise packing ring 3, the present embodiment comprises two packing rings 3, the first packing ring 31 and the second packing ring 32 respectively, described first packing ring 31 is located between the upper plane 121 of described upper metal cap 21 and described insulator overcoat 12, and described second packing ring 32 is located between the lower plane 122 of described lower metal cap 22 and described insulator overcoat 12, in the present embodiment, can be fixed more securely to make described packing ring 3, described first packing ring 31 is provided with the first bulge loop 311, second bulge loop 312 and the 3rd bulge loop 313, described 3rd bulge loop 313 is located at the one side of the close described insulator overcoat 12 of described first packing ring 31 and contacts with the end of described insulating cement 9, described first bulge loop 311 and the second bulge loop 312 are located at the one side away from described insulator overcoat 12, described upper metal cap 21 is respectively equipped with the first groove 212 and the second groove (not shown in FIG.) with the corresponding position of the first bulge loop 311 and the second bulge loop 312, during installation, described first bulge loop 311 and the second bulge loop 312 lay respectively in the first groove 212 and the second groove, described like this first packing ring 31 and then fitting tightly between described upper metal cap 21 and described insulator overcoat 12, described second packing ring 32 is provided with the 4th bulge loop 321, 5th bulge loop 312 and the 6th bulge loop 323, described 6th bulge loop 323 is located at the one side of the close described insulator overcoat 12 of described second packing ring 32 and contacts with the end of described insulating cement 9, described 4th bulge loop 321 and the 5th bulge loop 312 are located at the one side away from described insulator overcoat 12, the position corresponding with the 4th bulge loop 321 and the 5th bulge loop 312 of described lower metal cap 22 is respectively equipped with the 3rd groove 222 and the 4th groove (not shown in FIG.), during installation, described 4th bulge loop 321 and the 5th bulge loop 312 lay respectively in the 3rd groove 222 and the 4th groove, described like this second packing ring 32 and then fitting tightly between described lower metal cap 22 and described insulator overcoat 12, in addition, due to described upper metal cap 21 and described lower metal cap 22 be metal material make, and the insulator overcoat 12 contacted with it is made by ceramic material, therefore, in the present invention, described first packing ring 31 and the second packing ring 32, except Packed effect, also play very important cushioning effect, thus prevent described upper metal cap 21 from directly contacting with described insulator overcoat 12 with described lower metal cap 22.In the present invention, preferably, described packing ring 3 adopts high-temperature silicon disulfide rubber to make.
In the present invention, preferably, the external diameter of close insulator overcoat 12 one end of described upper metal cap 21 and lower metal cap 22 is equal with the external diameter of insulator overcoat 12, the benefit of such setting is, in use procedure of the present invention, when forcing in described upper metal cap 21 and lower metal cap 22, described upper metal cap 21 can be made and between described lower metal cap 22 and described insulating coating 12.
In the present invention, preferably, described insulator inner core 11 is epoxy glass fiber leading-drawing rods.
Below for Fig. 1, concrete manufacturing process of the present invention and use are further described:
The present invention is when making, first upper metal cap 21 is crimped fixing by press-connection machine with insulator inner core 11, then silicon rubber is smeared (preferably in the end 211 of close insulator overcoat 12 one end of upper metal cap 21, the silicon rubber smeared is room temperature vulcanized sili cone rubber), preferably, should smear evenly as far as possible, then the first bulge loop 311 of described first packing ring 31 and the second bulge loop 312 is made to correspond respectively to described first groove 212 and the second groove, with this, described first packing ring 31 is tentatively fixed on described upper metal cap 21, and then at another surface smear silicon rubber of described first packing ring 31, and described insulator overcoat 12 is contacted with it and fixes, then insulating cement is filled between described insulator overcoat 12 and insulator inner core 11, it is made to form solid insulator body 1, and then smear silicon rubber in the other end end 112 of insulator overcoat 12, and the second packing ring 32 is fixed on the other end end 112 of insulator overcoat 12, finally more lower metal cap 22 is crimped fixing by press-connection machine with the other end 112 of insulator inner core 11, whole manufacturing process just completes, in the present invention, due to upper metal cap 21 be that mode by crimping is fixing between lower metal cap 22 with described insulator overcoat 12, therefore connect closely, relative to the mode utilizing cement glue fixing of the prior art, the present invention has the advantage of the impact not being subject to temperature, and, no matter the weather of sleety weather or sweltering heat, described upper metal cap 21 and can both closely and contact securely between lower metal cap 22 with described insulator overcoat 12, in addition, in terms of existing technologies, the mode that crimping is fixed can also bear larger active force, in addition, the present invention in use, when described upper metal cap 21 and lower metal cap 22 are stressed respectively, described upper metal cap 21 and lower metal cap 22 with time in electrification railway contact net, in use procedure when described upper metal cap 21 and the stressed F1 of lower metal cap 22 difference, due to the end 211 of close insulator overcoat 12 one end of described upper metal cap 21 and lower metal cap 22, 221 contact with the upper plane 121 of described insulator overcoat 12 and lower plane 122 respectively, therefore described upper metal cap 21 and the active force of lower metal cap 22 to described insulator overcoat 12 be pressure F2(as shown in Figure 1), and described insulator overcoat 12 is made up of ceramic material, there is very strong crushing resistance, therefore described insulator overcoat 12 is just unlikely to rupture because of the active force by upper metal cap 21 and lower metal cap 22, the useful life of described like this insulator overcoat 12 just can extend, and use can be safer, and due to described upper metal cap 21 be that mode by crimping is connected between lower metal cap 22 with described insulator inner core 11, described upper metal cap 21 and the active force of lower metal cap 22 to described insulator inner core 11 are torsion, described insulator inner core 11 is that resistance to torsion is very strong, therefore described insulator inner core 11 is also unlikely to be twisted off, like this, just very firm of the connection between each several part of described insulator body 1.Therefore, the present invention have insulator body not easy fracture, upper and lower metal cap can be fixed more securely, connect more closely and firmly between each several part, the advantage of longer service life.
The present invention can also be set to the second execution mode (as shown in Figure 6), and the second execution mode is identical substantially with the first execution mode, and its difference is that insulator is double insulation.
Claims (7)
1. an electrification railway contact net clavate epoxy glass fiber core porcelain insulator, comprise insulator body (1), upper metal cap (21) and lower metal cap (22), the insulator overcoat (12) that described insulator body (1) comprises insulator inner core (11) and makes with ceramic material, described insulator inner core (11) is located in described insulator overcoat (12), and by insulating cement (9), both are formed the insulator body (1) of solid state, it is characterized in that, the two ends (111 of described insulator inner core (11), 112) the upper of described insulator overcoat (12) is protruded from respectively, lower plane (121, 122), described upper metal cap (21) and lower metal cap (22) are fixed on the outstanding two ends (111 of described insulator inner core (11) respectively by the mode crimped, 112) on, and described on, lower metal cap (21, 22) end (211 of close insulator overcoat (12) one end, 221) upper respectively with described insulator overcoat (12), lower plane (121, 122) contact.
2. electrification railway contact net clavate epoxy glass fiber core porcelain insulator according to claim 1, it is characterized in that: also comprise packing ring (3), described packing ring (3) is located between described upper metal cap (21) and the upper plane (121) of described insulator overcoat (12) and/or is located between described lower metal cap (22) and the lower plane (122) of described insulator overcoat (12).
3. electrification railway contact net clavate epoxy glass fiber core porcelain insulator according to claim 2, is characterized in that: described packing ring (3) adopts high-temperature silicon disulfide rubber to make.
4. the clavate epoxy glass fiber core porcelain insulator of the electrification railway contact net according to claim 1,2 or 3, it is characterized in that: the external diameter of close insulator overcoat (12) one end of described upper and lower metal cap (21,22) is equal with the external diameter of insulator overcoat (12).
5. the clavate epoxy glass fiber core porcelain insulator of the electrification railway contact net according to claim 1,2 or 3, it is characterized in that: also comprise and be positioned at described insulator overcoat (12) full skirt outward (4), described full skirt (4) makes with the ceramic material identical with described insulator overcoat (12), and be one with insulator overcoat (12).
6. electrification railway contact net clavate epoxy glass fiber core porcelain insulator according to claim 5, is characterized in that: the umbrella (40) of described full skirt (4) is the alternate setting of size.
7. the clavate epoxy glass fiber core porcelain insulator of the electrification railway contact net according to claim 1,2 or 3, is characterized in that: described insulator inner core (11) is epoxy glass fiber leading-drawing rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510972668.7A CN105405544A (en) | 2015-12-23 | 2015-12-23 | Bar-shaped epoxy glass fiber core porcelain insulator for electrified railway contact net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510972668.7A CN105405544A (en) | 2015-12-23 | 2015-12-23 | Bar-shaped epoxy glass fiber core porcelain insulator for electrified railway contact net |
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| Publication Number | Publication Date |
|---|---|
| CN105405544A true CN105405544A (en) | 2016-03-16 |
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|---|---|---|---|
| CN201510972668.7A Pending CN105405544A (en) | 2015-12-23 | 2015-12-23 | Bar-shaped epoxy glass fiber core porcelain insulator for electrified railway contact net |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63198214A (en) * | 1987-02-11 | 1988-08-16 | 日本碍子株式会社 | Corrosion resistant insulator |
| CN1296269A (en) * | 2000-10-11 | 2001-05-23 | 上海长利绝缘材料有限公司 | Novel single boundary all-closed high-pressure synthetic isolator and making method thereof |
| CN201256039Y (en) * | 2008-08-12 | 2009-06-10 | 黎琛 | Insulator component for power transmission and conversion capacitor |
| CN203521061U (en) * | 2013-10-12 | 2014-04-02 | 河南省德立泰高压电瓷电器有限公司 | Novel rod-shaped suspension composite porcelain insulator |
| CN203858937U (en) * | 2014-03-26 | 2014-10-01 | 湖南省醴陵市特种电瓷电器有限公司 | High strength rod porcelain insulator for high speed railway electrified railway contact net |
| CN205248007U (en) * | 2015-12-23 | 2016-05-18 | 深圳市银星绝缘子电气化铁路器材有限公司 | Clavate epoxy glass fiber core porcelain insulator for electronic railway connecting net |
-
2015
- 2015-12-23 CN CN201510972668.7A patent/CN105405544A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63198214A (en) * | 1987-02-11 | 1988-08-16 | 日本碍子株式会社 | Corrosion resistant insulator |
| CN1296269A (en) * | 2000-10-11 | 2001-05-23 | 上海长利绝缘材料有限公司 | Novel single boundary all-closed high-pressure synthetic isolator and making method thereof |
| CN201256039Y (en) * | 2008-08-12 | 2009-06-10 | 黎琛 | Insulator component for power transmission and conversion capacitor |
| CN203521061U (en) * | 2013-10-12 | 2014-04-02 | 河南省德立泰高压电瓷电器有限公司 | Novel rod-shaped suspension composite porcelain insulator |
| CN203858937U (en) * | 2014-03-26 | 2014-10-01 | 湖南省醴陵市特种电瓷电器有限公司 | High strength rod porcelain insulator for high speed railway electrified railway contact net |
| CN205248007U (en) * | 2015-12-23 | 2016-05-18 | 深圳市银星绝缘子电气化铁路器材有限公司 | Clavate epoxy glass fiber core porcelain insulator for electronic railway connecting net |
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Effective date of registration: 20180420 Address after: 518000 Guangdong Shenzhen Longhua New District Guanlan Street Tourism Road Silver Star High-tech Industrial Park Applicant after: Ma Min Address before: 518000 Guangdong Shenzhen Longhua New District Guanlan Street Tourism Road Silver Star High-tech Industrial Park Applicant before: SHENZHEN YINXING INSULATOR ELECTRIFICATION RAILWAY EQUIPMENT CO., LTD. |
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Application publication date: 20160316 |