CN202172231U - Transmission device of gas insulating metal closed type isolation switch - Google Patents
Transmission device of gas insulating metal closed type isolation switch Download PDFInfo
- Publication number
- CN202172231U CN202172231U CN2011202415203U CN201120241520U CN202172231U CN 202172231 U CN202172231 U CN 202172231U CN 2011202415203 U CN2011202415203 U CN 2011202415203U CN 201120241520 U CN201120241520 U CN 201120241520U CN 202172231 U CN202172231 U CN 202172231U
- Authority
- CN
- China
- Prior art keywords
- transmission device
- closed type
- framework oil
- isolation switch
- type isolation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Abstract
The utility model discloses a transmission device of a gas insulating metal closed type isolation switch, composed of a cabinet body, a shaft sleeve, a transmission shaft and a seal ring. Two framework oil seals arranged relatively are sleeved on the transmission shaft, and the outer edges of the framework oil seals are contacted with the inner wall of the shaft sleeve tightly. The transmission device of the gas insulating metal closed type isolation switch of the utility model has the characteristics of being good in seal effect, simple in structure and long in service life, and being safe and reliable.
Description
Technical field
The utility model belongs to the high-tension switch cabinet technical field, especially relates to a kind of transmission device of gas-insulated metal-enclosed formula isolating switch.
Background technology
Gas-insulated metal-enclosed formula high-tension switch cabinet is to be the switch cubicle of dielectric with SF6 gas; Be called for short C-GIS, C-GIS inflation cabinet is widely used in the abominable especially area of land used anxiety and reliability requirement high engineering construction project, environment and the power station, industrial area of pollution severity, is specially adapted to the area of highlands, coastal meteorological condition difference, filthy serious enterprise and the important load field of employment that can not have a power failure; Existing C-GIS generally adopts welded seal, sealing ring sealing and the wavy metal seal of tube; Existing technology has guaranteed the confined gas property requirement of product basically, but existing technology can only guarantee static seal, owing to need often the switch of switch cubicle to be operated; This just has higher requirement to isolating switch gas tank airtight performance in transmission process; The movable sealing of prior art can only guarantee effective in a short time, and the useful life of switch cubicle is generally more than 30 years, so the leak rate of the gas tank of C-GIS must be controlled at below 0.5%/year; In case leak; The shared percentage of SF6 gas reduces, and treats that the SF6 gas ratio drops to 40%, might be because decreasing insulating causes accident.
Summary of the invention
The purpose of the utility model is to improve the deficiency of prior art and provides that a kind of movable sealing is effective, simple in structure, safe and reliable, the transmission device of the gas-insulated metal-enclosed formula isolating switch of long service life.
The purpose of the utility model is to realize like this; A kind of transmission device of gas-insulated metal-enclosed formula isolating switch; Form by cabinet, axle sleeve, power transmission shaft and sealing ring; Be characterized in being with two outside framework oil seals of installing relatively at power transmission shaft, the outer rim of outside framework oil seal closely contacts with sleeve lining.
Compared with present technology the utility model has following distinguishing feature and good effect: the utility model is employed in power transmission shaft and is with two outside framework oil seals of installing relatively, and the outer rim of outside framework oil seal closely contacts with sleeve lining, adopts outside framework oil seal to realize movable sealing; Compared with prior art the long service life of outside framework oil seal, reliability are high; Especially can guarantee the airtight performance of isolating switch gas tank in transmission process, two outside framework oil seals are installed relatively, can guarantee carrying out the open and close operation; Be power transmission shaft clockwise, when rotating counterclockwise; Outside framework oil seal can play sealing function, satisfies the movable sealing requirement, has improved seal; Solve the sealing problem of isolating switch in transmission process, and the utility model is simple in structure, safe and reliable, long service life.Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.
Fig. 1 is a kind of structural representation of the utility model.
Embodiment
Embodiment, a kind of transmission device of gas-insulated metal-enclosed formula isolating switch is with reference to Fig. 1; Be on cabinet 1, to be fixed with axle sleeve 2; Axle sleeve 2 is provided with sealing ring 4 with the contact-making surface of cabinet 1, and power transmission shaft 3 is installed in the axle sleeve 2, on power transmission shaft 3, is with two outside framework oil seals of installing relatively 5; The outer rim of outside framework oil seal 5 closely contacts with axle sleeve 2 inwalls, and this constitutes a kind of structure of the utility model.
Claims (1)
1. the transmission device of a gas-insulated metal-enclosed formula isolating switch; Form by cabinet (1), axle sleeve (2), power transmission shaft (3) and sealing ring (4); It is characterized in that being with two outside framework oil seals of installing relatively (5) at power transmission shaft (3), the outer rim of outside framework oil seal (5) closely contacts with axle sleeve (2) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202415203U CN202172231U (en) | 2011-07-02 | 2011-07-02 | Transmission device of gas insulating metal closed type isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202415203U CN202172231U (en) | 2011-07-02 | 2011-07-02 | Transmission device of gas insulating metal closed type isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202172231U true CN202172231U (en) | 2012-03-21 |
Family
ID=45830417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202415203U Expired - Lifetime CN202172231U (en) | 2011-07-02 | 2011-07-02 | Transmission device of gas insulating metal closed type isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202172231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779021A (en) * | 2015-05-06 | 2015-07-15 | 河南森源电气股份有限公司 | Insulating sleeve for gas insulated switchgear |
-
2011
- 2011-07-02 CN CN2011202415203U patent/CN202172231U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779021A (en) * | 2015-05-06 | 2015-07-15 | 河南森源电气股份有限公司 | Insulating sleeve for gas insulated switchgear |
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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: 20120321 |