CN203232762U - Composite cross-arm umbrella shape structure - Google Patents
Composite cross-arm umbrella shape structure Download PDFInfo
- Publication number
- CN203232762U CN203232762U CN 201220660139 CN201220660139U CN203232762U CN 203232762 U CN203232762 U CN 203232762U CN 201220660139 CN201220660139 CN 201220660139 CN 201220660139 U CN201220660139 U CN 201220660139U CN 203232762 U CN203232762 U CN 203232762U
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- umbrella
- full skirt
- umbrella cover
- skirt
- arm
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Abstract
The utility model relates to a composite cross-arm umbrella shape structure comprising a core iron, a sheath and umbrella skirts; the innovation points are that: an umbrella point of a front umbrella surface of the umbrella skirt inclines to a rear umbrella surface of the umbrella skirt, and an umbrella angle of the front umbrella is marked as alpha; an umbrella point of the rear umbrella surface of the umbrella skirt inclines to the front umbrella surface of the umbrella skirt, and an umbrella angle of the rear umbrella surface is marked as beta; and the rear umbrella surface of the umbrella skirt can also be perpendicular to an axis of the core iron. The advantages are that the sheath and the umbrella skirts are injection moulded in one-body outside the core iron; no draft angle is arranged in the umbrella skirt structure, so umbrella tearing problem brought by demoulding process is prevented, and umbrella die can be more easily prepared; a mounting mode of the composite cross-arm is horizontal; umbrella design principle complies with usage condition of products; the product is hardly contained; and product flashover is reduced.
Description
Technical field
The utility model relates to a kind of overhead transmission line shaft tower cross-arm, particularly a kind of compound cross-arm beveled structure.
Background technology
Shaft tower is one of critical piece that constitutes built on stilts electric line, existing shaft tower all adopts all steel structure processed, but steel exist quality weight, easy-to-rust or mechanics defectives such as cracking, poor performance at low temperatures, also have wide, the problems such as transportation and operation maintenance difficulty of constructing in circuit corridor under particular surroundings; Iron tower is in great demand to steel, has not only consumed a large amount of mineral resources, and causes the severe contamination of biological environment in the production of steel and the course of processing.From the electric property aspect, fault and accidents such as pollution flashover, windage yaw discharge take place in the power transmission line Louis of full steel structure.Therefore, be all to require on power transmission tower, can import innovatively new material and new technology to address the above problem from security reliability or economic and social benefits angle.
The cross-arm of electric power pylon partly adopts fiberglass reinforced plastics (FRP) as arbor, organic synthesis materials such as silicon rubber are as full skirt, sheath, make it combine umbrella sheath material and arbor material characteristics separately, have good hydrophobicity, ageing resistance, proof tracking and electrical erosion resistance, and mechanical strength height, shock resistance, shockproof and anti-brittle failure performance is good, advantage such as in light weight, it is light to compare all steel cross-arm quality, volume is little, performance is safer, cost is more economical, installation and transportation are convenient, resource is more saved, numerous advantages such as environment is more friendly.
The mounting means of compound cross-arm and the mounting means of composite insulator are distinguished to some extent, generally composite insulator is installed as vertical installation or has some angles of inclination to install slightly, drench with rain for bearing, environmental factor such as heat solarization etc., stipulated the umbrella shape standard of insulator among the IEC 60815, the insulator umbrella shape all has the angle of inclination.
But above-mentioned insulator umbrella shape standard is as the umbrella shape of compound cross-arm the time, there is certain defective: as shown in Figure 1, umbrella cover all tilts to the same side before and after it, this umbrella shape causes full skirt 1 to tear when making easily, full skirt 1 is in the middle of the mould when injection moulding, mould is when last lower open die, and full skirt 1 has the angle of inclination and is torn full skirt easily, has increased manufacturing cost accordingly.The mounting means of compound cross-arm is that level is installed, and the angle of inclination that umbrella shape has does not have the shielding angle effect, forms contamination on the contrary easily in the umbrella inclination angle when operation.
Summary of the invention
The technical problems to be solved in the utility model is difficult for tearing and being difficult for forming the compound cross-arm beveled structure of contamination when providing a kind of die sinking.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of compound cross-arm beveled structure, and its innovative point is: comprise arbor, sheath and full skirt, the outer one piece injection mo(u)lding sheath of arbor and full skirt; The umbrella point of umbrella cover umbrella cover behind the full skirt rolls tiltedly before the described full skirt, and the umbrella inclination angle of preceding umbrella cover note is made α, 0 °＜α＜90 °; The umbrella point of umbrella cover umbrella cover before the full skirt rolls tiltedly behind the full skirt, and the umbrella inclination angle of back umbrella cover is remembered and made β, 0 °＜β＜90 °.
Further, the umbrella inclination alpha scope of umbrella cover is 5 °≤α≤25 ° before described; The umbrella angle of inclination beta scope of described back umbrella cover is 5 °≤β≤25 °.
Further, described α=β.
A kind of compound cross-arm beveled structure, its innovative point is: comprise arbor, sheath and full skirt, the outer one piece injection mo(u)lding sheath of arbor and full skirt; A umbrella cover in the preceding umbrella cover of described full skirt or the back umbrella cover is perpendicular to the axis of arbor, and the umbrella inclination angle of another umbrella cover note is made α, 0 °＜α＜90 °.
Further, described umbrella inclination alpha scope is 5 °≤α≤25 °.
Advantage of the present utility model is: when integral injection molding sheath and full skirt, umbrella skirt construction adopts camber angle or vertical plane in the utility model outside arbor, no pattern draft, and the full skirt that brings when avoiding the demoulding is torn problem, and it is simpler that the umbrella shape mould is opened system; The mounting means of compound cross-arm is that level is installed, and the umbrella shape design principle meets the product applying working condition, and product is difficult for contamination, reduces the product flashover.
Description of drawings
Fig. 1 is traditional insulator beveled structure schematic diagram.
Fig. 2 is the compound cross-arm beveled structure schematic diagram of the utility model first embodiment.
Fig. 3 is the compound cross-arm beveled structure schematic diagram of the utility model second embodiment.
Embodiment
As shown in Figure 2, comprise arbor 3, sheath 2 and full skirt 1, full skirt 1 and sheath 2 adopt the injection mo(u)lding of silicon rubber one piece, arbor 3 adopts hollow or solid FRP material to make, in the present embodiment, full skirt 1 adopts the identical isometrical umbrella structure of some diameters, and full skirt 1 also adopts by the one or more umbellule between the identical gamp of some diameters and the every adjacent gamp and rearranges certainly.
The preceding umbrella cover of full skirt 1 has the umbrella inclination angle, and the umbrella point of umbrella cover rolls tiltedly to full skirt 1 back umbrella cover before the full skirt, and the umbrella inclination angle of preceding umbrella cover note is made α, and 0 °＜α＜90 °; Back umbrella cover has the umbrella inclination angle, and the umbrella point of umbrella cover umbrella cover before the full skirt rolls tiltedly behind the full skirt, and the umbrella inclination angle of back umbrella cover is remembered and made β, 0 °＜β＜90 °.
Further, because actual operating position, comparatively suitable scope is: the umbrella inclination alpha scope of preceding umbrella cover is 5 °≤α≤25 °; The umbrella angle of inclination beta scope of described back umbrella cover is 5 °≤β≤25 °.
In the present embodiment, the umbrella angle of inclination beta of back umbrella cover is identical with the umbrella inclination angle scope of preceding umbrella cover, and namely α=β makes the front and back umbrella cover form symmetrically arranged umbrella inclination angle.
Fig. 3 shows the another kind of structure of compound cross-arm umbrella shape in the utility model, it comprises arbor 3, sheath 2 and full skirt 1, full skirt 1 and sheath 2 adopt the injection mo(u)lding of silicon rubber one piece, arbor 3 adopts hollow or solid FRP material to make, in the present embodiment, full skirt 1 adopts and is rearranged by the one or more umbellule between the identical gamp of some diameters and the every adjacent gamp.Certainly, full skirt 1 also can adopt the identical isometrical umbrella structure of some diameters.
A umbrella cover in the preceding umbrella cover of full skirt or the back umbrella cover is perpendicular to the axis of arbor 3, and the umbrella inclination angle of another umbrella cover note is made α, 0 °＜α＜90 °.
Umbrella cover is perpendicular to arbor 3 axis the time namely, and the umbrella point of back umbrella cover umbrella cover before the full skirt rolls tiltedly formation umbrella inclination angle; Or the back umbrella cover is perpendicular to arbor 3 axis the time, and the umbrella point of preceding umbrella cover umbrella cover behind the full skirt rolls tiltedly, forms the umbrella inclination angle.
Claims (5)
1. a compound cross-arm beveled structure is characterized in that: comprise arbor, sheath and full skirt, the outer one piece injection mo(u)lding sheath of arbor and full skirt; The umbrella point of umbrella cover umbrella cover behind the full skirt rolls tiltedly before the described full skirt, and the umbrella inclination angle of preceding umbrella cover note is made α, 0 °＜α＜90 °; The umbrella point of umbrella cover umbrella cover before the full skirt rolls tiltedly behind the full skirt, and the umbrella inclination angle of back umbrella cover is remembered and made β, 0 °＜β＜90 °.
2. compound cross-arm beveled structure according to claim 1 is characterized in that: the umbrella inclination alpha scope of umbrella cover is 5 °≤α≤25 ° before described; The umbrella angle of inclination beta scope of described back umbrella cover is 5 °≤β≤25 °.
3. compound cross-arm beveled structure according to claim 1 and 2 is characterized in that: described α=β.
4. a compound cross-arm beveled structure is characterized in that: comprise arbor, sheath and full skirt, the outer one piece injection mo(u)lding sheath of arbor and full skirt; A umbrella cover in the preceding umbrella cover of described full skirt or the back umbrella cover is perpendicular to the axis of arbor, and the umbrella inclination angle of another umbrella cover note is made α, 0 °＜α＜90 °.
5. compound cross-arm beveled structure according to claim 4 is characterized in that: described umbrella inclination alpha scope is 5 °≤α≤25 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220660139 CN203232762U (en) | 2012-12-05 | 2012-12-05 | Composite cross-arm umbrella shape structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220660139 CN203232762U (en) | 2012-12-05 | 2012-12-05 | Composite cross-arm umbrella shape structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232762U true CN203232762U (en) | 2013-10-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220660139 Expired - Lifetime CN203232762U (en) | 2012-12-05 | 2012-12-05 | Composite cross-arm umbrella shape structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203232762U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567604A (en) * | 2016-11-22 | 2017-04-19 | 常熟风范电力设备股份有限公司 | Umbrella skirt type cement-based composite insulated cross arm and manufacturing technology thereof |
| CN106677595A (en) * | 2016-11-22 | 2017-05-17 | 常熟风范电力设备股份有限公司 | Three-pipe type flexible composite insulated cross arm |
-
2012
- 2012-12-05 CN CN 201220660139 patent/CN203232762U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567604A (en) * | 2016-11-22 | 2017-04-19 | 常熟风范电力设备股份有限公司 | Umbrella skirt type cement-based composite insulated cross arm and manufacturing technology thereof |
| CN106677595A (en) * | 2016-11-22 | 2017-05-17 | 常熟风范电力设备股份有限公司 | Three-pipe type flexible composite insulated cross arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |