CN203711781U - Aluminum alloy shell for high-pressure/ultrahigh-pressure gas insulating switch - Google Patents
Aluminum alloy shell for high-pressure/ultrahigh-pressure gas insulating switch Download PDFInfo
- Publication number
- CN203711781U CN203711781U CN201420106914.1U CN201420106914U CN203711781U CN 203711781 U CN203711781 U CN 203711781U CN 201420106914 U CN201420106914 U CN 201420106914U CN 203711781 U CN203711781 U CN 203711781U
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- chambers
- chamber
- shell
- pressure
- ultrahigh
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Abstract
The utility model relates to the field of high voltage power transmission, and in particular to an aluminum alloy shell for a high-pressure/ultrahigh-pressure gas insulating switch of the field of high voltage power transmission. The shell comprises a shell body, wherein the shell body is internally provided with three chambers; the centers of the three chambers are symmetrically distributed inside the shell body; the three chambers are filled with sand cores; two of the chambers respectively consist of an upper chamber and a lower chamber; two upper chambers, two lower chambers and another chamber are of integrally formed structures; a plurality of risers are arranged on the outer sides of the three chambers. According to the technical scheme, compared with the prior art, the shell has the beneficial effects that by additionally arranging the riser structure at the lower part of a mold, the problem that the feeding cannot be performed in areas between an upper body and two lower bodies is solved, and the finished product rate is increased, namely, finished product rate is increased to be 98% from 90%.
Description
Technical field
The utility model relates to high pressure power transmission and distribution field, particularly relates to a kind of for high pressure power transmission and distribution field high-voltage and ultra-high gas-insulated switch Al-alloy casing.
Background technology
For Al-alloy casing for high pressure power transmission and distribution, require foundry goods dense structure, because it is air tight to carry High-Voltage Insulation gas 30 years; Because meeting produces high-voltage arc, require shell inner surface roughness Ra to equal to be less than 12.5.Along with power transmission and distribution switch Miniaturization Design, by the switch case of three groups of original three-phase separates, be designed to gradually a shell, minute three chambers, i.e. triplet configuration.
As everyone knows, to important alloy product, sand mold gravity foundry technology is generally low note, and foundry goods top arranges rising head for feeding.But for Chinese character pin-shaped foundry goods, the rising head on top cannot feeding arrive the region between upper body and two lower bodies, causes foundry goods loosen and scrap.Loose for eliminating foundry goods, general technological design is to place chill in thick large part, but chill place, and the roughness of cast(ing) surface is very high, and polishing difficulty even cannot be polished and scrapped.
Utility model content
For solving the problems of the technologies described above, it is a kind of by increase dead head structure in mould bottom that the utility model provides, and solution cannot feeding be arrived the region between upper body and two lower bodies, improves the high-voltage and ultra-high gas-insulated switch Al-alloy casing of yield rate.
A kind of high-voltage and ultra-high gas-insulated switch Al-alloy casing of the present utility model, comprise enclosure body, in described enclosure body, be provided with three chambers, three described chamber Central Symmetries are distributed in enclosure body, in three chambers, be all filled with core, wherein two chambers consist of upper chamber and lower chamber respectively, two upper chamber, two lower chamber and another chamber structure that is formed in one, and the arranged outside of three described chambers has some rising heads.The number of described rising head is four.
As shown from the above technical solution, compared with prior art, the beneficial effects of the utility model are: by increasing dead head structure in mould bottom, solved cannot feeding to the region between upper body and two lower bodies, raising yield rate, yield rate rises to 98% by 90%.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1.
The specific embodiment
As shown in Figure 1-2, high-voltage and ultra-high gas-insulated switch Al-alloy casing described in the utility model embodiment, comprise enclosure body 1, in described enclosure body 1, be provided with three chambers 2, three described chamber 2 Central Symmetries are distributed in enclosure body 1, in three chambers 2, be all filled with core 3, wherein two chambers 2 consist of upper chamber 21 and lower chamber 22 respectively, two upper chamber 21, two lower chamber 22 and another chamber 2 structure that is formed in one, the arranged outside of three described chambers 2 has some rising heads 4.The number of described rising head 4 is four.
During production, the interior insertion rising head of rising head 4 bar, rising head bar overcoat has muff, and moulding is carried out in back-up sand, after hardening, extracts rising head bar molding out by resin sand, now take out emit that bore is coated, lower core, mould assembling, make the utility model mould, with the utility model cast, by increase dead head structure in mould bottom, can solve cannot feeding to the region between upper body and two lower bodies, improve yield rate.
Comprise the above; it is only the specific embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (2)
1. a high-voltage and ultra-high gas-insulated switch Al-alloy casing, comprise enclosure body, it is characterized in that, in described enclosure body, be provided with three chambers, three described chamber Central Symmetries are distributed in enclosure body, in three chambers, are all filled with core, and wherein two chambers consist of upper chamber and lower chamber respectively, two upper chamber, two lower chamber and another chamber structure that is formed in one, the arranged outside of three described chambers has some rising heads.
2. high-voltage and ultra-high gas-insulated switch Al-alloy casing according to claim 1, is characterized in that: the number of described rising head is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106914.1U CN203711781U (en) | 2014-03-10 | 2014-03-10 | Aluminum alloy shell for high-pressure/ultrahigh-pressure gas insulating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106914.1U CN203711781U (en) | 2014-03-10 | 2014-03-10 | Aluminum alloy shell for high-pressure/ultrahigh-pressure gas insulating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711781U true CN203711781U (en) | 2014-07-16 |
Family
ID=51150981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420106914.1U Expired - Fee Related CN203711781U (en) | 2014-03-10 | 2014-03-10 | Aluminum alloy shell for high-pressure/ultrahigh-pressure gas insulating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711781U (en) |
-
2014
- 2014-03-10 CN CN201420106914.1U patent/CN203711781U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20160310 |