CN103236358B - Buffer for circuit breaker - Google Patents
Buffer for circuit breaker Download PDFInfo
- Publication number
- CN103236358B CN103236358B CN201310130055.XA CN201310130055A CN103236358B CN 103236358 B CN103236358 B CN 103236358B CN 201310130055 A CN201310130055 A CN 201310130055A CN 103236358 B CN103236358 B CN 103236358B
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- CN
- China
- Prior art keywords
- connecting rod
- support plate
- buffering support
- breaker
- pressure head
- 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.)
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to a bumper for a breaker. A support is arranged at one end of a mounting base, one end of a buffer bearing plate is arranged on the support through a pin, the other end of the mounting base is provided with a connecting rod, the other end of the buffer bearing plate is provided with a through hole and movably connected with the connecting rod through the through hole, an upper limit block for limiting moving range of the buffer bearing plate is arranged on the connecting rod, a pressure spring and a pressure head are arranged between the support and the connecting rod, the lower end of the pressure spring presses on the mounting base, the upper end of the pressure spring is connected with the pressure head which is connected on the buffer bearing plate, and a limit groove matched with a driving rod on the breaker is arranged on the upper surface of the middle portion of the buffer bearing plate. The bumper is simple in structure; via buffering and positioning during opening of the circuit breaker, the opening of the breaker is simply and effectively controlled to rebound within a safety range through, so that mechanical property parameters of the breaker are guaranteed, 'reignition' phenomenon is avoided, service life of the breaker is prolonged, reliable power supply is guaranteed.
Description
Technical field
The present invention relates to a kind of buffer for circuit breaker, specifically a kind of buffer be contained on outdoor high-voltage vacuum breaker, belongs to electrical equipment technical field.
Background technology
The realization of circuit-breaker switching on-off action derives from operating mechanism, is the needs meeting vacuum interrupter arc extinguishing during breaker open operation, and corresponding opening velocity is comparatively large, but when opening velocity is larger, in separating brake process, overshoot bounce-back controls very not easily.During separating brake overshoot rebounded conference make circuit breaker cause when separating brake arc control device contact occur " restriking " phenomenon, had a strong impact on the life-span of arc control device and the life-span of circuit breaker, even can cause serious electric power accident, for power supply reliability buried hidden danger.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of buffer of circuit breaker is provided, it is simple and reasonable, when breaker open operation by cushioning and locating, control circuit breaker overshoot bounce-back in separating brake action, in the scope of safety, to ensure breaker mechanic property parameter, prevent " restriking " phenomenon from occurring simple and effectively, improve the useful life of circuit breaker, guarantee that power supply is reliable.
According to technical scheme provided by the invention: buffer for circuit breaker, it is characterized in that: comprise mounting seat, pressure head, stage clip, buffering support plate and connecting rod, described mounting seat one end is provided with bearing, and described buffering support plate one end is arranged on bearing by pin; The described mounting seat other end is provided with connecting rod, the described buffering support plate other end is provided with through hole, the buffering support plate other end is flexibly connected with connecting rod by through hole, connecting rod is provided with the upper limit position block of restriction buffering support plate moving range, described stage clip and pressure head are arranged between bearing and connecting rod, described stage clip lower end is pressed in mounting seat, and stage clip upper end connects pressure head, and described pressure head is connected on buffering support plate; In the middle part of described buffering support plate, upper surface is provided with the stopper slot matched with the drive rod on circuit breaker.
As a further improvement on the present invention, described connecting rod comprises bolt, locking nut and spiral shell seat, described spiral shell seat is fixed in mounting seat, bolt is connected in spiral shell seat after being passed down through the through hole on buffering support plate and is locked after the adjustment of splitting lock cushioning resistance by locking nut, and the termination of described bolt is as upper limit position block.
compared with prior art, advantage is in the present invention:the present invention is simple and reasonable, when breaker open operation by cushioning and locating, control simple and effectively circuit breaker in separating brake action overshoot bounce-back value in the scope of safety, ensure breaker mechanic property parameter, prevent " restriking " phenomenon from occurring, improve the useful life of circuit breaker, guarantee that power supply is reliable.
Accompanying drawing explanation
Fig. 1 is the structural front view of the embodiment of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the three-dimensional structure diagram of the embodiment of the present invention.
Fig. 5 is the embody rule situation schematic diagram (breaker open operation position) of the embodiment of the present invention.
Fig. 6 is the embody rule situation schematic diagram (breaker closing position) of the embodiment of the present invention.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in the figure: the buffer for circuit breaker in embodiment is primarily of parts compositions such as mounting seat 1, buffering support plate 3, stage clip 4, pressure head 5, bolt 6, locking nut 7 and spiral shell seats 8.
As shown in Fig. 1 ~ Fig. 4, described mounting seat 1 one end is provided with bearing 2, and described buffering support plate 3 one end is arranged on bearing 2 by pin; Described mounting seat 1 other end is provided with connecting rod, described buffering support plate 3 other end is provided with through hole, buffering support plate 3 other end is flexibly connected with connecting rod by through hole, connecting rod is provided with the upper limit position block of restriction buffering support plate 3 moving range, described stage clip 4 and pressure head 5 are arranged between bearing 2 and connecting rod, described stage clip 4 lower end is pressed in mounting seat 1, and stage clip 4 upper end connects pressure head 5, and described pressure head 5 is connected on buffering support plate 3; In the middle part of described buffering support plate 3, upper surface is provided with the stopper slot 3a matched with the drive rod 9 on circuit breaker.
In illustrated embodiment, described connecting rod forms primarily of bolt 6, locking nut 7 and spiral shell seat 8, described spiral shell seat 8 is fixed in mounting seat 1, bolt 6 is connected in spiral shell seat 8 after being passed down through the through hole on buffering support plate 3 and is locked by locking nut 7, and the termination of described bolt 6 is as upper limit position block.
As shown in Figure 1, in the present invention, described buffering support plate 3 is processed by a metallic plate, and choose a rational angle, keeps the buffering inclined-plane slided during separating brake.And become a stopper slot 3a in bevel termination place appropriate design, flute profile 60 ° of angles, arc transition.The angle on bolt 6 adjustable support plate 3 inclined-plane told, the best effects of the cushioned resistance that is slidably matched during to reach separating brake.
embody rule situation of the present invention is as follows:
During breaker closing, as shown in Figure 5, drive rod 9 moves right, and according to the requirement of closing speed, closing speed chooses the speed of 6mm before contact, and during combined floodgate, closing speed does not affect by buffer.
During breaker open operation, as shown in Figure 6, drive rod 9 is to left movement, according to the requirement of opening velocity, opening velocity chooses the speed that contact is separated rear 6mm, opening velocity is unaffected, separating brake process latter end, drive rod 9 contacts with buffering support plate 3 and cushions support plate 3 to pressing down, the active force that buffering support plate 3 is subject to passes to stage clip 4 by pressure head 5, stage clip 4 makes separating brake be cushioned by its elastic compression, and last drive rod 9 to rest in the stopper slot 3a on buffering support plate 3 and locates, and the effective drive rod 9 that controls is to returning bounce-back.
Claims (1)
1. buffer for circuit breaker, it is characterized in that: comprise mounting seat (1), buffering support plate (3), stage clip (4), pressure head (5) and connecting rod, described mounting seat (1) one end is provided with bearing (2), and described buffering support plate (3) one end is arranged on bearing (2) by pin; Described mounting seat (1) other end is provided with connecting rod, described buffering support plate (3) other end is provided with through hole, buffering support plate (3) other end is flexibly connected with connecting rod by through hole, connecting rod is provided with the upper limit position block of restriction buffering support plate (3) moving range, described stage clip (4) and pressure head (5) are arranged between bearing (2) and connecting rod, described stage clip (4) lower end is pressed in mounting seat (1), stage clip (4) upper end connects pressure head (5), and described pressure head (5) is connected in buffering support plate (3); Described buffering support plate (3) middle part upper surface is provided with the stopper slot (3a) matched with the drive rod (9) on circuit breaker;
Described connecting rod comprises bolt (6), locking nut (7) and spiral shell seat (8), described spiral shell seat (8) is fixed in mounting seat (1), bolt (6) is connected in spiral shell seat (8) after being passed down through the through hole in buffering support plate (3) and is locked by locking nut (7), and the termination of described bolt (6) is adjustable needed for cushioned resistance as upper limit position block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310130055.XA CN103236358B (en) | 2013-04-15 | 2013-04-15 | Buffer for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310130055.XA CN103236358B (en) | 2013-04-15 | 2013-04-15 | Buffer for circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103236358A CN103236358A (en) | 2013-08-07 |
| CN103236358B true CN103236358B (en) | 2015-07-01 |
Family
ID=48884392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310130055.XA Active CN103236358B (en) | 2013-04-15 | 2013-04-15 | Buffer for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103236358B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2805921B1 (en) * | 2000-03-02 | 2002-11-29 | Alstom | DEVICE FOR CONTROL MECHANISM OF ELECTRICAL APPARATUS AND CONTROL MECHANISM PROVIDED WITH SUCH A DEVICE |
| CN202055204U (en) * | 2011-04-29 | 2011-11-30 | 宋淑红 | Mechanical hand brake |
| CN202172041U (en) * | 2011-07-20 | 2012-03-21 | 陕西烽火盛天电子科技有限公司 | High voltage permanent magnet vacuum circuit breaker on outdoor post |
| CN203218118U (en) * | 2013-04-15 | 2013-09-25 | 无锡市锡山湖光电器有限公司 | Buffer for breaker |
-
2013
- 2013-04-15 CN CN201310130055.XA patent/CN103236358B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103236358A (en) | 2013-08-07 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |