CN205248004U - 72.5 kV line post type insulator - Google Patents
72.5 kV line post type insulator Download PDFInfo
- Publication number
- CN205248004U CN205248004U CN201520871688.0U CN201520871688U CN205248004U CN 205248004 U CN205248004 U CN 205248004U CN 201520871688 U CN201520871688 U CN 201520871688U CN 205248004 U CN205248004 U CN 205248004U
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- bolt
- steel cap
- porcelain piece
- line post
- insulator
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Abstract
The utility model discloses a 72.5 kV line post type insulator, including porcelain spare, steel cap, bolt, the bolt passes through the steel cap and connects the one end at porcelain spare, the surperficial cladding of porcelain spare has antifouling coating, plate the zinc layer of resistant to rust on the surface of steel cap and bolt, it has antifouling material still to coat outside the zinc layer, steel cap and bolt all adopt nodular cast iron QT450 -10, porcelain spare adopts C120, porcelain spare all adopts cement mixture to glue with steel cap and steel cap with the junction of bolt. The utility model discloses the simple compactness of mechanism, low in production cost, resistant to rust ability reinforce, sealing performance and electric property are good, simple structure, it is convenient to safeguard, and long service life can carry out good location to fastening bolt through the pin simultaneously, can not drop because of the vibration even use fastening bolt to remain unchanged for a long time to guarantee the reliability of insulator, avoid the circuit insulation to be destroyed, further prolonged the life of insulator.
Description
Technical field
The utility model relates to electric power transfer unit technical field, relates to a kind of insulator, more particularly, relates to a kind of 72.5kVLine post insulator.
Background technology
Insulator is commonly called as porcelain vase, is the insulator for supporting wire, it can ensure wire and cross-arm, take bar have enough absolutelyEdge, thus in overhead type transmission system, be widely used. Because being in operation, it not only needs to bear wire vertical directionThe pulling force of loading box horizontal direction, and need to stand Exposure to Sunlight, drench with rain, the corrosion of climate change and chemical substance, therefore,Insulator should have good electric property, has again enough mechanical strengths and resistant to rust ability.
Existing insulator adopts the structure of insulating porcelain piece and steel cap, bolted conventionally, although substantially can meet the demands,Often there is following defect: 1, the consideration based on economy and mechanical strength, steel cap and bolt adopt low prices such as iron conventionallyHonest and clean metal is made, and its resistant to rust ability is poor; 2, the structure that more piece porcelain insulating part connects in turn, interface each other increases,Sealing becomes more difficult, causes the sealing property of insulator entirety poor, has affected electric property; 3, because multi-section structure is madeBecome the parts of insulator more, structure becomes complicated on the one hand, also can cause on the other hand the increasing of fault rate and maintenance workloadAdd. Therefore, by insulator is improved, can overcome above-mentioned defect, become those skilled in the art urgently to be resolved hurrilyTechnical problem.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, and a kind of 72.5kV line post insulator is provided, and hasEffect has overcome that resistant to rust ability, electric property that existing line pillar insulator exists are bad, the not fraud such as easy care of complex structureEnd.
The technical solution of the utility model is achieved in that a kind of 72.5kV line post insulator, comprise porcelain piece, steel cap,Bolt, described bolt is connected to one end of porcelain piece by steel cap, the surface of described porcelain piece is coated with nonpolluting coating, described steel cap andOn the outer surface of bolt, be coated with corrosion protection zinc layer, described zinc layer is also coated with anti-fouling material outward, and described steel cap and bolt all adoptSpheroidal graphite cast-iron QT450-10, described porcelain piece adopts C120, and the junction of described porcelain piece and steel cap and steel cap and bolt all adopts waterEarth rubber mixture glues together.
Further, described cement glue adopts 525# portland cement.
Further, described nonpolluting coating is for wrapping up in glaze layer of sand.
Further, the thickness of wrapping up in glaze layer of sand described in is 0.3-5 millimeter.
Further, described antifouling paint is RTV coating.
Further, the top of described porcelain piece has arc groove.
Further, described bolt is provided with pin shaft hole away from one end of porcelain piece, and pin matches with pin shaft hole.
Further, described pin shaft hole is manhole, and described pin is cylinder.
Compared with prior art, the beneficial effects of the utility model are: the utility model mechanism is simply compact, and production cost is low,Resistant to rust ability is strong, and sealing property and electric property are good, simple in structure, easy to maintenance, and long service life is passed through pin simultaneouslyNail can carry out good location to fastening bolt, even if use for a long time fastening bolt still can not drop because of vibration, therebyEnsure the reliability of insulator, avoid line insulation destroyed, further extended the service life of insulator.
Brief description of the drawings
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form the utility modelAny restriction.
Fig. 1 is the structural representation of a kind of 72.5kV line post insulator of the utility model.
In figure, 1-porcelain piece, 2-steel cap, 3-bolt, 4-pin shaft hole, 5-pin.
Detailed description of the invention
Consult shown in Fig. 1, a kind of 72.5kV line post insulator of the present utility model, comprises porcelain piece 1, steel cap 2, bolt3, described bolt 3 is connected to one end of porcelain piece 1 by steel cap 2, and the surface of described porcelain piece 1 is coated with nonpolluting coating, described steelOn the outer surface of cap 2 and bolt 3, be coated with corrosion protection zinc layer, described zinc layer is also coated with anti-fouling material outward; Described steel cap 2 HesBolt 3 all, for the installation of this insulator, preferably adopts the metal that possesses some strength, therefore, and described steel cap 2 and bolt 3All adopt spheroidal graphite cast-iron QT450-10, described porcelain piece 1 adopts C120. The top of described porcelain piece 1 has arc groove.
The resistant to rust ability of considering the metals such as QT450-10 a little less than, can plate resistant to rust energy at the outer surface of steel cap 2 and bolt 3The metal level that power is strong, for example galvanizing, zinc layer should be continuous, even, smooth, and be firmly attached on flange outer surface, andShould carry out zinc layer bonding strength test; Zinc coating thickness should meet the regulation of IEC60383.1-1993, but due to not resistant of zinc layer,Therefore we have applied nonpolluting coating outward at zinc layer, and described nonpolluting coating is for wrapping up in glaze layer of sand, and the thickness of wrapping up in glaze layer of sand is 0.3-5 milliRice, improves its antifouling ability successively.
For the sealing of reinforced insulation entirety, improve its electric property, in the junction of each parts, for example described porcelain piece 1All adopt cement glue to glue together with steel cap 2 and steel cap 2 with the junction of bolt 3. Described cement glue adopts 525Portland cement.
In order to ensure the antifouling property of porcelain piece 1, apply antifouling paint on the surface of porcelain piece 1, described antifouling paint is RTV coating.
For bolt 3 being firmly fixed on the fixation steel plate of bottom, described bolt 3 is provided with pin shaft hole away from one end of porcelain piece 14, pin 5 matches with pin shaft hole 4. Described pin shaft hole 4 is manhole, and described pin 5 is cylinder. Say like this bolt3 be fixed on the fixation steel plate of bottom after, pin 5 is squeezed in pin shaft hole 4, pin 5 length will be much larger than the diameter of bolt 3,Therefore bolt has been formed to a fixing limit.
Above illustrated embodiment is preferred embodiments of the present utility model, is only used for convenient explanation the utility model, not to thisUtility model is done any pro forma restriction, has and conventionally knows the knowledgeable, if do not departing from this practicality newly in any affiliated technical fieldIn the scope of technical characterictic that type is carried, utilize technology contents that the utility model discloses to do local equivalence of changing or modify realExecute example, and do not depart from technical characterictic content of the present utility model, all still belong in the scope of the utility model technical characterictic.
Claims (6)
1. a 72.5kV line post insulator, it is characterized in that: comprise porcelain piece (1), steel cap (2), bolt (3), described bolt (3) is connected to one end of porcelain piece (1) by steel cap (2), the surface of described porcelain piece (1) is coated with nonpolluting coating, on the outer surface of described steel cap (2) and bolt (3), be coated with corrosion protection zinc layer, described zinc layer is also coated with anti-fouling material outward, described steel cap (2) and bolt (3) all adopt spheroidal graphite cast-iron QT450-10, described porcelain piece (1) adopts C120, described porcelain piece (1) all adopts cement glue to glue together with steel cap (2) and steel cap (2) with the junction of bolt (3), described bolt (3) is provided with pin shaft hole (4) away from one end of porcelain piece (1), and pin (5) matches with pin shaft hole (4), described pin shaft hole (4) is manhole, and described pin (5) is cylinder.
2. a kind of 72.5kV line post insulator according to claim 1, is characterized in that: described cement glue adopts 525# portland cement.
3. a kind of 72.5kV line post insulator according to claim 1, is characterized in that: described nonpolluting coating is for wrapping up in glaze layer of sand.
4. a kind of 72.5kV line post insulator according to claim 3, is characterized in that: described in wrap up in glaze layer of sand thickness be 0.3-5 millimeter.
5. a kind of 72.5kV line post insulator according to claim 1, is characterized in that: described antifouling paint is RTV coating.
6. a kind of 72.5kV line post insulator according to claim 1, is characterized in that: the top of described porcelain piece (1) has arc groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520871688.0U CN205248004U (en) | 2015-10-31 | 2015-10-31 | 72.5 kV line post type insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520871688.0U CN205248004U (en) | 2015-10-31 | 2015-10-31 | 72.5 kV line post type insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205248004U true CN205248004U (en) | 2016-05-18 |
Family
ID=55947086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520871688.0U Active CN205248004U (en) | 2015-10-31 | 2015-10-31 | 72.5 kV line post type insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205248004U (en) |
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2015
- 2015-10-31 CN CN201520871688.0U patent/CN205248004U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |