CN202443904U - High voltage vacuum switch arc-extinguishing chamber opening or closing mechanism - Google Patents
High voltage vacuum switch arc-extinguishing chamber opening or closing mechanism Download PDFInfo
- Publication number
- CN202443904U CN202443904U CN2011205696463U CN201120569646U CN202443904U CN 202443904 U CN202443904 U CN 202443904U CN 2011205696463 U CN2011205696463 U CN 2011205696463U CN 201120569646 U CN201120569646 U CN 201120569646U CN 202443904 U CN202443904 U CN 202443904U
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- China
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- cam
- guide rod
- extinguishing chamber
- insulator
- bearing
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- Expired - Fee Related
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The present utility model relates to a high voltage vacuum switch arc-extinguishing chamber opening and closing mechanism. The opening and closing mechanism comprises a vacuum arc-extinguishing chamber and a transmission shaft for driving a movable contact inside the vacuum arc-extinguishing chamber to move, the movable contact of the vacuum arc-extinguishing chamber is provided with an insulator, a guide rod of the guide end of the insulator is provided with a linear bearing, and the guide rod is moved in an up-and-down way under the guide effect of the linear bearing after passing through the linear bearing; a notch is arranged on the bottom part of the guide rod, a cam is fixed on the transmission shaft, a sliding chute is arranged on the cam, the cam is connected with the guide rod through an antifriction bearing arranged inside the notch, an inner ring of the bearing is fixedly connected with the side wall of the notch, and the antifriction bearing is embedded inside the sliding chute. In the mechanism, the transmission shaft and the vacuum arc-extinguishing chamber are driven by the cam and connected by the bearing, thus the movable contact of the arc-extinguishing chamber is moved in an up-and-down way vertical with the movable contact, stability of the insulator is guaranteed, bouncing phenomenon of the switch is eliminated, damages on the arc-extinguishing chamber are reduced, and the capacitor set is fully protected.
Description
Technical field
The utility model relates in a kind of electric power system capacitor switching and uses high-pressure vacuum switch, relates in particular to a kind of high-pressure vacuum switch arc control device deciliter mechanism.
Background technology
Deciliter mechanism of used high-pressure vacuum switch arc control device is fixed on a deciliter lever on the power transmission shaft in present 6～10KV capacitor switching; Power transmission shaft rotates the drive lever and does the circular arc action during switch work, and the vacuum interrupter on the pulling high-pressure vacuum switch is accomplished the switch opening and closing movement.Because what lever was done is the circular arc action, during its deciliter vacuum interrupter, what the moving contact of arc control device was done is not rectilinear motion; And in fact the moving contact of arc control device requires to do vertically-acting; Infringement to vacuum interrupter is very big like this, and occurs the divide-shut brake bounce easily, causes moment to repeat to send electricity to close a floodgate to the capacitor group; Damage the capacitor group, even the capacitor explosion hazard occurs.
Summary of the invention
To the problems referred to above, the utility model provides a kind of arc control device moving contact that can guarantee to do vertically-acting, prevent to damage the high-pressure vacuum switch arc control device deciliter mechanism of arc control device.
The described high-pressure vacuum switch arc control device of the utility model deciliter mechanism; Comprise vacuum interrupter and the power transmission shaft that is used to drive the indoor moving contact action of vacuum extinction; The moving contact of said vacuum interrupter is provided with insulator; The guide rod of insulator guide end is provided with a linear axis and holds, and guide rod passes linear bearing and under the guide effect of linear bearing, moves up and down; Guide rod bottom is provided with a notch, is fixed with a cam on the said power transmission shaft, and cam is provided with chute, and chute seamlessly transits and with respect to the peak and minimum point difference in height the opening apart from big 2mm than vacuum interrupter of drive shaft axis along arc track; Cam is connected with guide rod with the affixed rolling bearing of pocket side wall through being positioned at notch and inner ring, rolling bearing be embedded in the chute and with the gap of chute be 10～15.Through the said structure setting, do reciprocal 90 whens rotation degree at power transmission shaft, cam rotates synchronously, and the rolling bearing that drives on the insulator rotates in the cam chute, makes insulator under the restriction of linear bearing, produce the knee-action perpendicular to vacuum interrupter.
For eliminating the bounce in the switch deciliter process, be provided with damping spring between said insulator and the vacuum interrupter moving contact.
The utility model is used cam drive between power transmission shaft and vacuum interrupter; And utilize bearing to connect; Make the moving contact of arc control device do knee-action, ensured the stability of insulator, eliminated the bounce of switch perpendicular to arc control device; Reduced the damage to arc control device, the capacitor group has adequately protected.
Description of drawings
Be described in detail below in conjunction with the execution mode of accompanying drawing the utility model:
Fig. 1 is that the master of the utility model looks cutaway view;
Fig. 2 is the side view cutaway drawing of Fig. 1;
Among the figure, 1, vacuum interrupter, 2, damping spring, 3, insulator, 4, linear bearing, 5, rolling bearing, 6, cam, 7, power transmission shaft, 8, guide rod, 9, notch, 10, chute.
Embodiment
A kind of high-pressure vacuum switch arc control device deciliter mechanism, as shown in the figure, comprise vacuum interrupter 1 and power transmission shaft 7, the moving contact of said vacuum interrupter 1 is provided with insulator 3, and insulator 3 is provided with damping spring 2 with vacuum interrupter 1 moving contact junction.The guide rod 8 of insulator 3 guide ends is provided with a linear axis and holds 4, and guide rod 8 passes linear bearing and under the guide effect of linear bearing, moves up and down.Guide rod 8 bottoms are provided with a notch 9; Fixed cover is equipped with a cam 6 on the said power transmission shaft 7, and cam 6 is provided with chute 10, and chute 10 seamlessly transits and with respect to the peak of drive shaft axis and minimum point difference in height opening apart from big 2mm than vacuum interrupter along arc track; Cam 6 edges insert in the notch 9 of guide rod bottom; One rolling bearing 5 is housed in the notch 9, and rolling bearing 5 is positioned at cam chute 10, and the inner ring of rolling bearing 5 is affixed through bolt and notch 9 sidewalls; The fit clearance of its outer ring and chute is 10, can in chute, rotate.
Concrete course of action is following: during high-pressure vacuum switch work; Power transmission shaft rotates; Drive cam rotation, rolling bearing rotates in chute, along with rolling bearing moving between the chute highs and lows; Insulator and moving contact move up and down under the guide effect of linear bearing, accomplish the switch opening and closing movement of vacuum interrupter.
Claims (2)
1. high-pressure vacuum switch arc control device deciliter mechanism; Comprise vacuum interrupter (1) and be used to drive the power transmission shaft (7) that the indoor moving contact of vacuum extinction moves; The moving contact of said vacuum interrupter (1) is provided with insulator (3); It is characterized in that: the guide rod (8) of insulator (3) guide end is provided with a linear axis and holds (4), and guide rod (8) passes linear bearing and under the guide effect of linear bearing, moves up and down; Guide rod (8) bottom is provided with a notch (9); Be fixed with a cam (6) on the said power transmission shaft (7); Cam (6) is provided with chute (10), and chute (10) seamlessly transits and with respect to the peak of drive shaft axis and minimum point difference in height opening apart from big 2mm than vacuum interrupter along arc track; Cam (6) is connected with guide rod (8) through being positioned at notch and the inner ring rolling bearing affixed with pocket side wall (5), rolling bearing (5) be embedded in the chute and with the gap of chute be 10～15.
2. high-pressure vacuum switch arc control device according to claim 1 deciliter mechanism is characterized in that: be provided with damping spring (2) between said insulator (3) and vacuum interrupter (1) moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205696463U CN202443904U (en) | 2011-12-31 | 2011-12-31 | High voltage vacuum switch arc-extinguishing chamber opening or closing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205696463U CN202443904U (en) | 2011-12-31 | 2011-12-31 | High voltage vacuum switch arc-extinguishing chamber opening or closing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202443904U true CN202443904U (en) | 2012-09-19 |
Family
ID=46825339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205696463U Expired - Fee Related CN202443904U (en) | 2011-12-31 | 2011-12-31 | High voltage vacuum switch arc-extinguishing chamber opening or closing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202443904U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731621A (en) * | 2017-10-17 | 2018-02-23 | 珠海许继电气有限公司 | A kind of double-fracture killer switch major loop transmission device |
| CN107728019A (en) * | 2017-09-27 | 2018-02-23 | 湖南长高电气有限公司 | A kind of GIS pressure test frocks |
-
2011
- 2011-12-31 CN CN2011205696463U patent/CN202443904U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728019A (en) * | 2017-09-27 | 2018-02-23 | 湖南长高电气有限公司 | A kind of GIS pressure test frocks |
| CN107731621A (en) * | 2017-10-17 | 2018-02-23 | 珠海许继电气有限公司 | A kind of double-fracture killer switch major loop transmission device |
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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 |
Granted publication date: 20120919 Termination date: 20161231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |