CN2408561Y - Straightening mechanism for breaker operation - Google Patents
Straightening mechanism for breaker operation Download PDFInfo
- Publication number
- CN2408561Y CN2408561Y CN 99257678 CN99257678U CN2408561Y CN 2408561 Y CN2408561 Y CN 2408561Y CN 99257678 CN99257678 CN 99257678 CN 99257678 U CN99257678 U CN 99257678U CN 2408561 Y CN2408561 Y CN 2408561Y
- Authority
- CN
- China
- Prior art keywords
- lever
- rod
- straightening mechanism
- switch
- hinged
- 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 - Fee Related
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Abstract
The utility model relates to a straightening mechanism for breaker operation, which is used for changing the rotation (swing) of a crank arm of a main shaft of a switch to the straight-line motion from top to bottom of a conductive rod when a switch of the breaker is opened and closed. The straightening mechanism is composed of the order hinging of movavle conductive rods (2), an upper connecting rod (5), a lower connecting rod (6) and a lever (11). Simultaneously, a contact spring (8) near the main shaft of the switch on an existing insulating drawing rod is moved to above the level (11) near the movable conducitve rods. Because of the amplifying action of the lever and the contact spring (8) moving to between the movable conductive rods (2), the quality of each rod is smaller than that of home position, the initial speed of the opening of the switch is obviously increased, and the opening of the switches more reliable.
Description
The utility model belongs to mechanical transmission fields, is used for high voltage switchgear such as breaker operation mechanism.
The major function of circuit breaker (as vacuum circuit-breaker) operating mechanism is by the four-bar mechanism transmission rotation of switch spindle to be become the rectilinear motion up and down of moving conductive rod, to realize closing, dividing of the dynamic and static contact of circuit breaker.The touch spring that dynamic and static contact compresses after being used in this mechanism of existing product close a floodgate is positioned at the insulated tension pole rear end hinged with switch spindle (i.e. an end of close switch spindle), and it is hinged that the insulated tension pole front end passes through lever or slider-crank mechanism and moving conductive rod lower end.The problem of this spline structure is: be difficult for improving the first component velocity of separating brake during separating brake greatly owing to the insulated tension pole quality of touch spring front, during separating brake at the beginning of component velocity cross to hang down and then be unfavorable for arc extinguishing.
The design's purpose is to improve the separating brake initial velocity of circuit breaker actuating straightening mechanism, thereby realizes reliable arc extinguishing.
The design's scheme is the position that changes touch spring, and adopts the linkage that is essentially four-bar mechanism.Concrete scheme is:
Circuit breaker actuating straightening mechanism also is made up of hinged successively insulated tension pole, middle rod member and moving conductive rod, with different before is:
A: rod member be hinged successively last connecting rod, lower link and lever in the middle of described, wherein lower link centre and last rod hinge connection, and lower end and lever are hinged, and upper end and insulated tension pole are hinged;
B: the touch spring of straightening mechanism is positioned at above the fixed supported slab of lever top, and the upper end of spring core bar is greater than the aperture of touch spring, and the lower end passes fixed supported slab and lever is hinged.
Course of action of the present utility model is as follows: close a floodgate: under the switching signal effect, the switch spindle connecting lever drives insulated tension pole, and then driving the slider-crank mechanism action of forming by upper and lower two connecting rods and moving conductive rod, the rectilinear motion so moving conductive rod makes progress is realized closing a floodgate; Moment moving conductive rod behind the combined floodgate no longer moves upward, its lower end hinging pin shaft is equivalent to fixed pivot, so the lever below making under " overtravel " action of main shaft drive insulated tension pole rotates, lever rotates and makes the touch spring compression, increase bounce, the stroke that drives the insulated tension pole motion up to main shaft is ended, and this moment, this bounce just was delivered to moving conductive rod by lever and upper and lower two connecting rods, compressing after realizing closing a floodgate.Separating brake: the switch spindle connecting lever rotates in the opposite direction under the sub-gate signal effect, and then drives two upper and lower connecting rods and moving conductive rod action, makes the downward rectilinear motion of moving conductive rod, realizes separating brake; Meanwhile the pressure of touch spring discharges and powerful bounce-back, impels the separating brake initial actuating to quicken.
This mechanism has tangible advantage than the straightening mechanism of existing product: the energy that spring discharges during separating brake amplifies and two connecting rod transmission by lever, has quickened moving conductive rod and has moved down; And because insulated tension pole is left and near moving conductive rod by original changing near a side of switch spindle in the touch spring position on insulated tension pole, the quality of power transmission rod member between touch spring and the moving conductive rod (two connecting rod and lever) is less than the power transmission rod member (rod member in the middle of insulated tension pole and the lever etc. of original structure, wherein the insulated tension pole quality is very big), according to Newton's second law, the more little acceleration of quality is big more under same function power, thereby opening velocity obviously improves.Final effect is to make reliably arc extinguishing of separating brake.
Below in conjunction with description of drawings embodiment of the present utility model:
Fig. 1 is the utility model straightening mechanism;
Fig. 2 is for using the circuit breaker of this straightening mechanism.
Among Fig. 1,1 is arc control device, and 2 is moving conductive rod, and 3 is conductive clip, and 4 is the rod end bearing of moving conductive rod, and 5 is last connecting rod, and 6 is lower link, and 7 is insulated tension pole, and 8 is touch spring, and 9 is fixed supported slab, and 10 is the spring core bar, and 11 is lever, and 12 is set screw.
Wherein, moving conductive rod 2, go up connecting rod 5 and lower link 6 and form that to go up four-bar mechanism be slider-crank mechanism, four-bar mechanism under last connecting rod 5, lower link 6 and lever 11 are formed.Conductive clip 3 links to each other be flexible coupling (semi arch part among the figure).
Touch spring in the straightening mechanism of product all was positioned at the place (this figure can't show) of the high order end of insulated tension pole 7 near switch spindle in the past.
During combined floodgate, switch spindle connecting lever drive insulated tension pole 7 moves left under the switching signal effect, and then drives lower link 6, upward connecting rod 5 and moving conductive rod 2 actions successively, and the rectilinear motion so moving conductive rod 2 makes progress is realized combined floodgate; Moment lever behind the combined floodgate 11 clockwise rotates, pulling spring core bar 10 makes touch spring 8 compressions, and bounce increases, up to being enough to stop being rotated further of lever 11, this moment, this bounce just was delivered to moving conductive rod 2 by lever 11, lower link 6 and last connecting rod 5 successively, compressing after realizing closing a floodgate.Separating brake: the switch spindle connecting lever rotates in the opposite direction under the sub-gate signal effect, and then drives lower link 6, upward connecting rod 5 and moving conductive rod 2 actions successively, makes moving conductive rod 2 downward rectilinear motions, realizes separating brake; Meanwhile the pressure of touch spring 8 discharges and powerful bounce-back, impels the separating brake initial actuating to quicken.
In Fig. 2,1 is the operating mechanism case, and 2 is insulator, and 3 is last outlet seat, and 4 is arc control device, and 5 are following outlet seat, and 6 is insulated tension pole.This straightening mechanism is on the position of outlet 5 down.
The model machine of manufacturing experimently out according to the design is by test, shows more nimble more fast than former mechanism separating brake, prepares to be used for the new product of our factory.
Claims (1)
1, circuit breaker actuating straightening mechanism is made up of hinged successively insulated tension pole (7), middle rod member and moving conductive rod (2), it is characterized in that:
A: rod member is hinged successively last connecting rod (5), lower link (6) and lever (11) in the middle of described, and wherein hinged with last connecting rod (5) in the middle of the lower link (6), lower end and lever (11) are hinged, and upper end and insulated tension pole (7) are hinged;
B: the touch spring of straightening mechanism (8) is positioned at above the fixed supported slab (9) of lever (11) top, and the upper end of spring core bar (10) is greater than the aperture of touch spring (8), and it is hinged with lever (11) that fixed supported slab (9) is passed in the lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99257678 CN2408561Y (en) | 1999-12-24 | 1999-12-24 | Straightening mechanism for breaker operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99257678 CN2408561Y (en) | 1999-12-24 | 1999-12-24 | Straightening mechanism for breaker operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2408561Y true CN2408561Y (en) | 2000-11-29 |
Family
ID=34040508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99257678 Expired - Fee Related CN2408561Y (en) | 1999-12-24 | 1999-12-24 | Straightening mechanism for breaker operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2408561Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952787A (en) * | 2017-04-17 | 2017-07-14 | 河南森源电气股份有限公司 | Breaker |
-
1999
- 1999-12-24 CN CN 99257678 patent/CN2408561Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952787A (en) * | 2017-04-17 | 2017-07-14 | 河南森源电气股份有限公司 | Breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |