CN202695281U - Manual switching-off device for permanent magnet vacuum circuit breaker - Google Patents
Manual switching-off device for permanent magnet vacuum circuit breaker Download PDFInfo
- Publication number
- CN202695281U CN202695281U CN 201220362125 CN201220362125U CN202695281U CN 202695281 U CN202695281 U CN 202695281U CN 201220362125 CN201220362125 CN 201220362125 CN 201220362125 U CN201220362125 U CN 201220362125U CN 202695281 U CN202695281 U CN 202695281U
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- Prior art keywords
- permanent magnet
- manual switching
- hanging
- manual
- shaft
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- Expired - Fee Related
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Abstract
The utility model discloses a manual switching-off device for a permanent magnet vacuum circuit breaker. A limiting sleeve (16) and two spring hanging shafts (5) are also fixed on a frame (7); two limiting plates (15) are also fixed on a manual switching-off shaft (2); one end of the manual switching-off shaft (2) is arranged in the limiting sleeve (16), and the other end of the manual switching-off shaft (2) penetrates through a copper sleeve (1); two spring hanging pins (3) penetrate through round holes of the manual switching-off shaft (2); one ends of the spring hanging pins (3) are fixed with the manual switching-off shaft (2), and the other ends of the spring hanging pins (3) are connected with the spring hanging shafts (5) through resetting units (4); and a pin (13) is provided with two bearings (14). The stability of the output characteristics of a permanent magnetic mechanism is greatly improved by the manual switching-off device for the permanent magnet vacuum circuit breaker.
Description
Technical field
The utility model relates to a kind of vacuum circuit-breaker in the electrical power distribution system switchgear, and is relevant with minute brake structure of circuit breaker especially.
Background technology
In the design of electrical power distribution system switchgear permanent magnet type vacuum circuit-breaker, manual switching-off device is the device that is used for emergency opening when breaker control power supply dead electricity.The reliability of manual switching-off device has directly determined the reliability of circuit breaker security of operation, so the fail safe of manual switching-off device, reliability just seem particularly important.At present, the manual switching-off device of most of permanent magnetic vacuum breakers is welded with a hanging spring shaft 5 at framework 7 as shown in Figure 1; The moving iron core 9 of permanent magnet mechanism has a slot with static iron core 10 binding sites, and an end of manual brake separating axle 2 is installed in this slot, and the other end is through in the copper sheathing 1; Be installed with a hanging bolt 3 in manual brake separating axle 2 circular holes, hanging bolt 3 one ends are fixed on manual brake separating axle 2, and the other end links together by return spring 4 and hanging spring shaft 5; Copper sheathing 1 is fixed on the framework 7.Separating brake handle 6 is fixed on an end of manual brake separating axle 2.Rotate separating brake handle 6 during separating brake and drive 2 rotations of manual brake separating axle, give simultaneously return spring 4 storage power.When manual brake separating axle 2 rotates prying open a slit between the moving iron core 9 of permanent magnet mechanism and the static iron core 10.Permanent magnet mechanism has been issued to open position in the effect of tripping spring 8.The rear separating brake handle 6 of loosing one's grip returns to original position under the effect of return spring 4.Relative position behind the certain number of times of this structure operation between the moving iron core 9 of meeting change permanent magnet mechanism more or less and the static iron core 10 has so just changed the output characteristic of permanent magnet mechanism, thereby has made the mechanical performance of circuit breaker unstable.
The utility model content
The purpose of this utility model is to design a kind of manual switching-off device of laborsaving, simple, reliable, stable permanent magnet type vacuum circuit-breaker.
The technical solution of the utility model is: a kind of manual switching-off device of permanent magnet type vacuum circuit-breaker, comprise the manual brake separating axle, hanging bolt, return spring, be fixed on copper sheathing and hanging spring shaft on the framework, the separating brake handle, moving iron core, static iron core, drive pull bar, tripping spring, pin on permanent magnet mechanism output shaft and the driving pull bar, it is characterized in that, also be fixed with stop collar and two hanging spring shafts on the framework, also be fixed with two limiting plates on the manual brake separating axle, one end of manual brake separating axle is contained in the stop collar, the other end is through in the copper sheathing, be installed with two hanging bolts in the manual brake separating axle circular hole, hanging bolt one end and manual brake separating axle are fixed, the other end is connected with hanging spring shaft by resetting, and two bearings are housed on the pin.
The manual brake separating structure of the permanent magnet type vacuum circuit-breaker that the utility model provides, when circuit breaker needs emergency opening, pulling separating brake handle, the separating brake handle drives the manual brake separating axle and clockwise rotates.When the separating brake axle rotates, stored energy to return spring on the one hand, driven on the other hand limiting plate and rotate.Limiting plate be rotated further after bearing contacts, to the permanent magnet mechanism output shaft firmly.After the slit had appearred in the dynamic and static iron core of permanent magnet mechanism, the closing retention force of permanent magnet mechanism reduced rapidly.Permanent magnet mechanism has been issued to open position in the effect of tripping spring.The utility model directly carries out the effect of power to the output shaft of permanent magnet mechanism but not makes it carry out separating brake to the effect that the iron core of permanent magnet mechanism carries out power, greatly reduce the unsteadiness of permanent magnet mechanism output characteristic, thereby guaranteed the stability of permanent magnet type vacuum circuit-breaker mechanical property.
Description of drawings
Fig. 1 is the assembly structure schematic diagram of original permanent magnet type vacuum circuit-breaker manual switching-off device;
Fig. 2 is the assembly structure schematic diagram of the utility model permanent magnet type vacuum circuit-breaker manual switching-off device embodiment.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Among the figure: 1, copper sheathing 2, manual brake separating axle 3, hanging bolt 4, return spring 5, hanging spring shaft 6, separating brake handle 7, framework 8, tripping spring 9, moving iron core 10, static iron core 11, driving pull bar 12, permanent magnet mechanism output shaft 13, pin 14, bearing 15, limiting plate 16, stop collar
As shown in Figure 2, the manual switching-off device of the permanent magnet type vacuum circuit-breaker that the utility model provides, comprise manual brake separating axle 2, hanging bolt 3, return spring 4, be fixed on copper sheathing 1 and hanging spring shaft 5 on the framework 7, separating brake handle 6, moving iron core 9, static iron core 10, drive pull bar 11, tripping spring 8, pin 13 on permanent magnet mechanism output shaft 12 and the driving pull bar 11, it is characterized in that, also be fixed with stop collar 16 and two hanging spring shafts 5 on the framework 7, also be fixed with two limiting plates 15 on the manual brake separating axle 2, one end of manual brake separating axle 2 is contained in the stop collar 16, the other end is through in the copper sheathing 1, be installed with two hanging bolts 3 in manual brake separating axle 2 circular holes, hanging bolt 3 one ends and manual brake separating axle 2 are fixing, the other end is connected with hanging spring shaft 5 by return spring 4, on the pin 13 two bearings 14 is housed.
When circuit breaker needs emergency opening, pulling separating brake handle 6, separating brake handle 6 drives manual brake separating axle 2 and clockwise rotates.When separating brake axle 2 rotates, stored energy to return spring 4 on the one hand, driven on the other hand limiting plate 15 and rotate.Limiting plate 15 be rotated further after bearing 14 contacts, to permanent magnet mechanism output shaft 12 firmly.After the slit had appearred in the moving iron core 9 of permanent magnet mechanism and static iron core 10, the closing retention force of permanent magnet mechanism reduced rapidly.Permanent magnet mechanism has been issued to open position in the effect of tripping spring 8.The utility model directly carries out the effect of power to the output shaft 12 of permanent magnet mechanism but not makes it carry out separating brake to the effect that the moving iron core 9 of permanent magnet mechanism carries out power, thereby greatly improved the stability of permanent magnet mechanism output characteristic, guaranteed the really mechanical performance of circuit breaker.
Claims (1)
1. permanent magnetic vacuum breaker manual switching-off device, comprise manual brake separating axle (2), hanging bolt (3), return spring (4), be fixed on copper sheathing (1) and hanging spring shaft (5) on the framework (7), the separating brake handle (6) that is connected with manual brake separating axle (2), moving iron core (9), static iron core (10), drive pull bar (11), tripping spring (8), pin (13) on permanent magnet mechanism output shaft (12) and the driving pull bar (11), it is characterized in that: also be fixed with stop collar (16) and two hanging spring shafts (5) on the framework (7), also be fixed with two limiting plates (15) on the manual brake separating axle (2), one end of manual brake separating axle (2) is contained in the stop collar (16), the other end is through in the copper sheathing (1), be installed with two hanging bolts (3) in manual brake separating axle (2) circular hole, hanging bolt (3) one ends and manual brake separating axle (2) are fixing, the other end is connected with hanging spring shaft (5) by reset (4), on the pin (13) two bearings (14) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220362125 CN202695281U (en) | 2012-07-25 | 2012-07-25 | Manual switching-off device for permanent magnet vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220362125 CN202695281U (en) | 2012-07-25 | 2012-07-25 | Manual switching-off device for permanent magnet vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695281U true CN202695281U (en) | 2013-01-23 |
Family
ID=47550861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220362125 Expired - Fee Related CN202695281U (en) | 2012-07-25 | 2012-07-25 | Manual switching-off device for permanent magnet vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202695281U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021976A (en) * | 2014-06-10 | 2014-09-03 | 浙江伏尔特电器有限公司 | Permanent magnetic vacuum circuit breaker |
| CN106158527A (en) * | 2015-03-19 | 2016-11-23 | 河南华盛隆源电气有限公司 | A kind of Manual circuit breaker device for permanent magnet mechanism |
-
2012
- 2012-07-25 CN CN 201220362125 patent/CN202695281U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021976A (en) * | 2014-06-10 | 2014-09-03 | 浙江伏尔特电器有限公司 | Permanent magnetic vacuum circuit breaker |
| CN104021976B (en) * | 2014-06-10 | 2016-05-25 | 浙江伏尔特电器有限公司 | Permanent magnetic vacuum breaker |
| CN106158527A (en) * | 2015-03-19 | 2016-11-23 | 河南华盛隆源电气有限公司 | A kind of Manual circuit breaker device for permanent magnet mechanism |
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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: 20130123 Termination date: 20170725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |