CN103219189B - Rotary insulator and isolating switch - Google Patents
Rotary insulator and isolating switch Download PDFInfo
- Publication number
- CN103219189B CN103219189B CN201310101693.9A CN201310101693A CN103219189B CN 103219189 B CN103219189 B CN 103219189B CN 201310101693 A CN201310101693 A CN 201310101693A CN 103219189 B CN103219189 B CN 103219189B
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- insulator
- connector
- face
- isolating switch
- embedding
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention relates to a rotary insulator and an isolating switch. The rotary insulator comprises an insulator which is a cake-shaped revolving body; connecting pieces are fixedly arranged at both ends of the insulator; one end, facing to the insulator, of each connecting piece is wrapped and fixedly arranged inside the insulator, and one end, extending out of the insulator, of each connecting piece is a transmission end; a transmission hole in which a connecting end corresponding to a rotating shaft is inserted so as to realize torque transmission connection is formed in the end surface of each transmission end; the transmission holes at both ends are arranged coaxially; and the minimum distance between the two connecting pieces inside the insulator is not less than the striking distance of the insulator. The distance between two adjacent phases or between an operating mechanism and a corresponding phase is shortened, so that the structure of the isolating switch is more compact, the boundary dimension of the isolating switch is shortened, the isolating switch can be installed and used in a smaller space, and simultaneously the manufacturing cost of the isolating switch is also reduced.
Description
Technical field
The present invention relates to high voltage switchgear technical field, particularly a kind of high voltage isolator and can be used for the alternate rotation insulator be in transmission connection of high voltage isolator.
Background technology
At present, for the tri-station isolating switch in fully closed combined electric unit, its feed motion and separating brake action are by operating mechanism output torque, the moving contact synchronous rotary of three-phase is driven to realize by working the alternate transmission insulating part acted on that is in transmission connection between operating mechanism moment of torsion output revolving shaft with corresponding phase rotating shaft and between adjacent two-phase rotating shaft again, what existing alternate transmission insulating part adopted is insulation impregnation pipe, transmission adopts pivot pin to connect, this transmission connecting structure generally adopts when phase spacing is larger, that is could use when using installing space enough large, and in some special use occasions, require that the monnolithic case size of tri-station isolating switch must control in a less scope, this just requires to reduce phase spacing, the layout relative compact of three station conductor parts just can be met the requirements, but while reducing phase spacing, also must ensure alternate insulation property, also do not meet at present these isolating switches required and for the alternate insulating part be in transmission connection of isolating switch.
Summary of the invention
The object of this invention is to provide and a kind ofly can be used for the alternate rotation insulator be in transmission connection of tri-station isolating switch, this insulator can reduce the phase spacing of isolating switch under the prerequisite ensureing phase insulation performance.Meanwhile, the present invention also provides a kind of isolating switch being equipped with this rotation insulator.
For achieving the above object, isolating switch of the present invention adopts following technical scheme: isolating switch, comprise be in transmission connection adjacent two-phase rotating shaft and or the alternate transmission insulating part of operating mechanism output revolving shaft and corresponding phase rotating shaft, described alternate transmission insulating part is for rotating insulator, this rotation insulator comprises the insulator in pie revolving body, the two ends of this insulator are all installed with connector, one end towards insulator embedding of connector is fixedly arranged on insulator inside, one end of stretching out insulator end face of connector is driving end, the connecting end portion that the end face of this driving end is provided with for corresponding rotating shaft inserts the driving hole realizing torque drive and connect, two ends driving hole is coaxially set, minimum range in insulator between two connectors is not less than the striking distance of insulator.
The embedding end of described connector has by end-face diameter to outward extending expansion edge, and the end face outwardly on expansion edge is positioned at insulator, and insulator forms overall structure by cast and connector.
Described connector is revolving body, and spherically, this end face is provided with annular groove to the end face of connector embedding end.
The revolution side face of described insulator is sphere.
Described insulator is epoxyresin insulator.
Rotation insulator of the present invention adopts following technical scheme: rotate insulator, comprise the insulator in pie revolving body, the two ends of this insulator are all installed with connector, insulator inside is fixed in one end towards insulator embedding of connector, one end of stretching out insulator end face of connector is driving end, the connecting end portion that the end face of this driving end is provided with for corresponding rotating shaft inserts the driving hole realizing torque drive and connect, two ends driving hole is coaxially arranged, and the minimum range in insulator between two connectors is not less than the striking distance of insulator.
The embedding end of described connector has by end-face diameter to outward extending expansion edge, and the end face outwardly on expansion edge is positioned at insulator, and insulator forms integrative-structure by cast and connector.
Described connector is revolving body, and spherically, this end face is provided with annular groove to the end face of connector embedding end.
The revolution side face of described insulator is sphere.
Described insulator is epoxyresin insulator.
Rotation insulator of the present invention adopts pie insulator and is embedded in the connecting-piece structure at its two ends, assembly connection is in isolating switch, connecting end portion due to each rotating shaft inserts in driving hole to realize transmission link, like this can either transmitting torque, can reduce again between adjacent two-phase or operating mechanism with corresponding mutually between distance, make the structure of isolating switch more compact, simultaneously because insulator is pie structure, increase the radial dimension of insulator, under the prerequisite reducing phase spacing, the requirement of creepage distance can be ensured.The present invention reduces the overall dimension of isolating switch, can use in less space mounting, also can reduce the manufacturing cost of isolating switch simultaneously.
The present invention is after the embedding end of connector arranges expansion edge, insulator defines embedding gear edge on the end face on expansion edge, add both bond areas on the one hand, also serve the effect of block anticreep on the other hand, thus add the bonding strength of connector and insulator.After the end face that connector embedding is held is arranged to sphere, the bearing capacity of insulator moment of torsion and moment of flexure can be improved; After this end face arranges annular groove, further increase the bond area of insulator and connector, thus strengthen its bonding strength, increase the mechanical strength of insulator simultaneously.Insulator adopts sphere as after its side face, the requirement not only effectively adding its creepage distance and meet along face electric field, and is conducive to the integral bending improving insulator.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention rotates a kind of embodiment of insulator;
Fig. 2 is the stereogram of connector in Fig. 1;
Fig. 3 is the structural representation of a kind of embodiment of isolating switch of the present invention.
Embodiment
Be the embodiment of rotation insulator provided by the invention shown in Fig. 1, Fig. 2, this insulator comprises the insulator 1 in pie revolving body, and the revolution side face of this insulator is smooth Surface of Sphere 2; The two ends of this insulator are all installed with connector 3, connector is also revolving body, its one end is driving end, the connecting end portion that the end face of this end is provided with for corresponding rotating shaft inserts the driving hole 4 realizing torque drive and connect, this driving hole is square drive hole, and its other end is embedding end, and this end has by end-face diameter to outward extending expansion along 7, the end face 6 of this end spherically simultaneously, and this end face is also provided with annular groove 5.Insulator inside is fixed in the embedding end embedding of connector, the driving end of connector stretches out outside the end face of insulator, insulator two end connection driving hole is coaxially set, and two connectors 3 are all positioned on the center line of insulator 1, and the minimum range in insulator between two connectors is not less than the striking distance of insulator.When rotating insulator production, first two connectors 3 are coaxially arranged, then moulding by casting is carried out with epoxy resin, solidify the insulator that rear formation and connector are fixed together, thus form overall structure with two connectors, the end face outwardly on the expansion edge of connector embedding end is positioned at insulator, and expansion is along being embedded in insulator completely.
It is the embodiment of isolating switch provided by the invention shown in Fig. 3, this isolating switch is a tri-station isolating switch, it comprises operating mechanism and A, B, C three-phase, between operating mechanism 10 moment of torsion output revolving shaft 14 and the rotating shaft of A phase and in three-phase adjacent two-phase rotating shaft between be all connected with alternate transmission insulating part 11, this insulating part is for rotating insulator, the structure of rotating insulator is identical with the structure in Fig. 1, Fig. 2 provided by the invention, will not repeat herein; When connecting, between each rotating shaft and insulator driving hole, being also arranged with the drive sleeve 12 of square-outside and round-inside, between drive sleeve and the connector rotating insulator, being also provided with radial connection pin 13.In the present embodiment, the structure of the transmission insulating part between operating mechanism 10 with corresponding connection mutually and the transmission insulating part between three-phase is identical, in the specific implementation, also the transmission insulating part of different structure can be adopted, as long as but one of them have employed the rotation insulator structure in the present invention, in the overall dimension reducing isolating switch in varying degrees, its compact conformation can be made, to adapt to the requirement of installing space.
In other embodiments of the present invention, some structures of rotating insulator can be different, such as: the revolution side face of insulator also can adopt the smooth face of cylinder, or in order to increase creepage distance, annular groove being set on the circumferential face, its surface being formed in the axial direction wavy; Connector embedding end also can not arrange expansion edge, and now insulator can adopt prefabricated then by bonding mode or to be directly connected formation overall structure by the mode of moulding by casting and connector; In addition, connector also can adopt square body to substitute revolving body, and the end face of embedding end can be also plane, and this end face also can not arrange annular groove.
Claims (10)
1. isolating switch, comprise be in transmission connection adjacent two-phase rotating shaft and or the alternate transmission insulating part of operating mechanism output revolving shaft and corresponding phase rotating shaft, it is characterized in that: described alternate transmission insulating part is for rotating insulator, this rotation insulator comprises the insulator in pie revolving body, the two ends of this insulator are all installed with connector, one end towards insulator embedding of connector is fixedly arranged on insulator inside, one end of stretching out insulator end face of connector is driving end, the connecting end portion that the end face of this driving end is provided with for corresponding rotating shaft inserts the driving hole realizing torque drive and connect, the driving end of connector stretches out outside the end face of insulator, two ends driving hole is coaxially set, minimum range in insulator between two connectors is not less than the striking distance of insulator.
2. isolating switch according to claim 1, is characterized in that: the embedding end of described connector has by end-face diameter to outward extending expansion edge, and the end face outwardly on expansion edge is positioned at insulator, and insulator forms overall structure by cast and connector.
3. isolating switch according to claim 2, is characterized in that: described connector is revolving body, and spherically, this end face is provided with annular groove to the end face of connector embedding end.
4. the isolating switch according to claim 1 or 2 or 3, is characterized in that: the revolution side face of described insulator is sphere.
5. the isolating switch according to claim 1 or 2 or 3, is characterized in that: described insulator is epoxyresin insulator.
6. rotate insulator, it is characterized in that: comprise the insulator in pie revolving body, the two ends of this insulator are all installed with connector, insulator inside is fixed in one end towards insulator embedding of connector, one end of stretching out insulator end face of connector is driving end, the connecting end portion that the end face of this driving end is provided with for corresponding rotating shaft inserts the driving hole realizing torque drive and connect, the driving end of connector stretches out outside the end face of insulator, two ends driving hole is coaxially arranged, and the minimum range in insulator between two connectors is not less than the striking distance of insulator.
7. rotation insulator according to claim 6, it is characterized in that: the embedding end of described connector has by end-face diameter to outward extending expansion edge, the end face outwardly on expansion edge is positioned at insulator, and insulator forms integrative-structure by cast and connector.
8. rotation insulator according to claim 7, is characterized in that: described connector is revolving body, and spherically, this end face is provided with annular groove to the end face of connector embedding end.
9. the rotation insulator according to claim 6 or 7 or 8, is characterized in that: the revolution side face of described insulator is sphere.
10. the rotation insulator according to claim 6 or 7 or 8, is characterized in that: described insulator is epoxyresin insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310101693.9A CN103219189B (en) | 2013-03-27 | 2013-03-27 | Rotary insulator and isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310101693.9A CN103219189B (en) | 2013-03-27 | 2013-03-27 | Rotary insulator and isolating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103219189A CN103219189A (en) | 2013-07-24 |
| CN103219189B true CN103219189B (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310101693.9A Expired - Fee Related CN103219189B (en) | 2013-03-27 | 2013-03-27 | Rotary insulator and isolating switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN103219189B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143461B (en) * | 2013-07-16 | 2016-06-08 | 国家电网公司 | Transmission insulator and use the isolator of this transmission insulator |
| CN105206464B (en) * | 2015-08-17 | 2017-12-15 | 平高集团威海高压电器有限公司 | Three-station isolating grounding switch and the GIS device using the switch |
| CN106504930A (en) * | 2016-09-14 | 2017-03-15 | 河南平高电气股份有限公司 | Switch transmission shaft component and tri-station isolating switch |
| CN106298346A (en) * | 2016-09-14 | 2017-01-04 | 河南平高电气股份有限公司 | Switch power transmission shaft, switch transmission shaft component and tri-station isolating switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3585270A (en) * | 1968-07-31 | 1971-06-15 | John George Trump | Gas-insulated transmission line |
| US3848081A (en) * | 1971-08-19 | 1974-11-12 | Siemens Ag | Hollow high-voltage electric insulator |
| CN101694793A (en) * | 2009-10-19 | 2010-04-14 | 山东彼岸电力科技有限公司 | Insulating supporting rod for high-voltage electrical appliance and production method thereof |
| CN201576509U (en) * | 2009-12-01 | 2010-09-08 | 中国西电电气股份有限公司 | Insulating torsion bar |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53125769U (en) * | 1977-03-15 | 1978-10-05 | ||
| JPS60166220U (en) * | 1984-04-13 | 1985-11-05 | 株式会社東芝 | insulation spacer |
| CH694413A5 (en) * | 1998-11-20 | 2004-12-31 | Siemens Ag | Insulator for a high-voltage switchgear. |
| JP5433360B2 (en) * | 2009-09-18 | 2014-03-05 | 株式会社東芝 | Gas insulated switchgear |
| JP5415212B2 (en) * | 2009-09-30 | 2014-02-12 | 株式会社東芝 | Vacuum circuit breaker |
-
2013
- 2013-03-27 CN CN201310101693.9A patent/CN103219189B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3585270A (en) * | 1968-07-31 | 1971-06-15 | John George Trump | Gas-insulated transmission line |
| US3848081A (en) * | 1971-08-19 | 1974-11-12 | Siemens Ag | Hollow high-voltage electric insulator |
| CN101694793A (en) * | 2009-10-19 | 2010-04-14 | 山东彼岸电力科技有限公司 | Insulating supporting rod for high-voltage electrical appliance and production method thereof |
| CN201576509U (en) * | 2009-12-01 | 2010-09-08 | 中国西电电气股份有限公司 | Insulating torsion bar |
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| Publication number | Publication date |
|---|---|
| CN103219189A (en) | 2013-07-24 |
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