CN106783427B - A kind of moving contact of breaker resilience-proof device - Google Patents
A kind of moving contact of breaker resilience-proof device Download PDFInfo
- Publication number
- CN106783427B CN106783427B CN201710149068.XA CN201710149068A CN106783427B CN 106783427 B CN106783427 B CN 106783427B CN 201710149068 A CN201710149068 A CN 201710149068A CN 106783427 B CN106783427 B CN 106783427B
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- CN
- China
- Prior art keywords
- breaker
- swivel plate
- limit shaft
- moving contact
- fixing axle
- 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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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/121—Protection of release mechanisms
Abstract
The invention discloses a kind of moving contact of breaker resilience-proof devices, including breaker body, mechanism main shaft on breaker body and anti-rebound mechanism are set, the lower section of fixing axle is arranged in second limit shaft, the swivel plate is by by impact portion, blocking portion and mounting hole composition, the cross-sectional shape of the outer surface of the blocking portion is set as convex structure, and the contour structure of arc-shaped is gradually reduced from lower end to upper end with the distance between the mounting hole center of circle, the swivel plate is rotatably installed in fixing axle by mounting hole, the torsional spring is socketed in fixing axle, and two torque arm of torsional spring are respectively acting on the second limit shaft and swivel plate.Its structure is simple, it is few to increase number of parts, occupies little space.Function is reliable simultaneously, and the rebound of separating brake moving contact is made to be not random or influenced by moving contact spring, but constant in the range of a very little, and then improve the disjunction of breaker and be resistant to performance in short-term.
Description
Technical field
The invention belongs to technical field of low-volatile distribution equipment, more particularly, to a kind of operating mechanism for low-voltage circuit breaker
Device.
Background technique
In electrical power distribution apparatus, breaker is for distributing electric energy and protection circuit and equipment from the danger of the failures such as overload, short circuit
Evil.With the increase of electricity consumption and the development of high-power electric appliance, the various indexs of breaker are all in the continuous improvement, especially short
When be resistant to the raising of index, the requirement to breaker is also higher and higher.When volume of breaker etc. does not change, if wanted
Improve short durability performance, it is necessary to increase the force value of moving contact spring, guarantee that contact will not be opened by reprimand when being resistant in short-term, moving contact bullet
The increase of spring force value will lead to moving contact separating brake in place after, moving contact rebound increases, and causes effectively to open away from drastically reducing.It is easy
Cause to restrike, causes the performance of product that can not improve.
Breaker currently on the market does not limit the rebound of moving contact, causes breaking capacity that can not greatly improve,
Especially some Wind Power Projects, are unable to satisfy the requirement of high target user.
Summary of the invention
The technical problems to be solved by the present invention are: a kind of spring-back resistant device for breaker is provided, to hit using separating brake
Move swivel plate quickly.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions: a kind of moving contact of breaker
Resilience-proof device, it is described to prevent back including breaker body, the mechanism main shaft being arranged on breaker body and anti-rebound mechanism
Playing mechanism includes the cantilever being fixedly mounted on mechanism main shaft, fixing axle, swivel plate, torsional spring, the first limit shaft and the second limit
Axis, the fixing axle, the first limit shaft and the second limit shaft are fixedly mounted on the outer wall of breaker body, and the first limit
The right side of fixing axle is arranged in position axis, and the lower section of fixing axle is arranged in the second limit shaft, and the swivel plate is by by impact portion, blocking
Portion and mounting hole composition, the cross-sectional shape of the outer surface of the blocking portion are set as convex structure, and arc-shaped
Contour structure is gradually reduced from lower end to upper end with the distance between the mounting hole center of circle, and the swivel plate passes through mounting hole rotation peace
In fixing axle, the torsional spring is socketed in fixing axle, and two torque arm of torsional spring be respectively acting on the second limit shaft and
On swivel plate, first limit shaft and the second limit shaft respectively rotate into the turned position that swivel plate revolves clockwise and anticlockwise
Row limit.
Preferably, described by being provided with recessing groove between impact portion and blocking portion.
Preferably, the cross-sectional shape of the end of the cantilever is set as convex structure.
Preferably, the cantilever and mechanism main shaft install fixation by way of welding or riveting.
Compared with prior art, usefulness of the present invention is: the configuration of the present invention is simple, increase number of parts are few, occupy
Space is small.Function is reliable simultaneously, and the rebound of separating brake moving contact is made to be not random or influenced by moving contact spring, but in perseverance
It is scheduled in the range of a very little, and then improves the disjunction of breaker and be resistant to performance in short-term.
Detailed description of the invention
The following further describes the present invention with reference to the drawings.
Fig. 1: the axis of breaker mechanism and contact open position surveys separating brake schematic diagram.
Fig. 2: the lateral separating brake schematic diagram of breaker mechanism and contact open position.
Fig. 3: the axis of breaker mechanism and contact closing position surveys combined floodgate schematic diagram.
Fig. 4: the lateral combined floodgate schematic diagram of breaker mechanism and contact closing position.
Fig. 5: breaker starts combined floodgate schematic diagram.
Fig. 6: schematic diagram during breaker closing (swivel plate steps down to cantilever).
Fig. 7: main shaft cantilever starts schematic diagram during promotion swivel plate during breaker open operation.
Fig. 8: breaker open operation (most large opening) schematic diagram (swivel plate by inertial rotation to the first limit shaft at) in place.
Fig. 9: the blocking portion of swivel plate prevents cantilever from rotating schematic diagram
Figure 10: the structural schematic diagram of swivel plate.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention will be described in detail:
A kind of moving contact of breaker resilience-proof device as shown in Figures 1 to 10, including breaker body 3, setting are disconnected
Mechanism main shaft 10 and anti-rebound mechanism on road device ontology 3, the anti-rebound mechanism include being fixedly mounted on mechanism main shaft 10
On cantilever 9, fixing axle 7, swivel plate 8, torsional spring 11, the first limit shaft 5 and the second limit shaft 6, the fixing axle 7, first limits
Position axis 5 and the second limit shaft 6 are fixedly mounted on the outer wall of breaker body 3, and the first limit shaft 5 is arranged in fixing axle
The lower section of fixing axle 7 is arranged in 7 right side, the second limit shaft 6, and the swivel plate 8 is by by impact portion 81, blocking portion 82 and installation
Hole 83 forms, and the cross-sectional shape of the outer surface of the blocking portion 82 is set as convex structure, and the profile of arc-shaped
Structure is gradually reduced from lower end to upper end with the distance between 83 center of circle of mounting hole, and the swivel plate 8 is rotated by mounting hole 83
It is mounted in fixing axle 7, the torsional spring 11 is socketed in fixing axle 7, and two torque arm of torsional spring 7 are respectively acting on the second limit
On position axis 6 and swivel plate 8, what first limit shaft 5 and the second limit shaft 6 respectively revolved swivel plate 8 clockwise and anticlockwise
Turned position rotates into capable limit.
It is described by being provided with recessing groove 84 between impact portion 81 and blocking portion 82, cantilever 9 by separating brake elastic force pulling force from
It after opening blocking portion 82, can be placed in recessing groove 84, guarantee that cantilever 9 is not interfered with swivel plate 8, and then be conducive to swivel plate 8
It restPoses.
The cross-sectional shape of the end of the cantilever 9 is set as convex structure, using this structure, cantilever 9 with rotation
The contact position of the blocking portion 82 of rotating plate 8 ensure that the Impact direction directing mechanism main shaft of cantilever 9 only at 9 top of cantilever
10 circle, while being also beneficial to the reset of swivel plate 8.
As fixed form preferred between cantilever 9 and mechanism main shaft 10, the cantilever 9 passes through welding with mechanism main shaft 10
Or the mode of riveting installs fixation.
As shown in figure 4, cantilever 9 is fixed on mechanism main shaft 10 by modes such as welding when breaker is in "on" position,
And it is rotated together with mechanism main shaft 10；Dynamic contact mechanism 2 is connected with mechanism main shaft 10, and dynamic contact mechanism 2 and mechanism master
Axis 10 rotates synchronously, and dynamic contact mechanism 2 is contacted and compressed with static contact mechanism 1, realizes that circuit is connected.
Breaker open operation process: firstly, as shown in figure 4, mechanism main shaft 10 under the action of contact pressure and separating brake tension spring,
It rotates counterclockwise and is rotated according to direction 104.When mechanism main shaft 10 turns to a certain point of view, as shown in fig. 7, cantilever
9 top can strike swivel plate 8 by impact portion 81, and make the quick rotation clockwise of swivel plate 8, when mechanism main shaft 10 will
When close to open position, swivel plate 8 continues to rotate clockwise by inertia.As shown in figure 8, the top of cantilever 9 and swivel plate 8 it
Between have and get out of the way gap 205, contacted so swivel plate 8 is moveable in the first limit shaft 5.
It bounces the stage followed by separating brake: driving dynamic contact mechanism 2 to move to separating brake when mechanism main shaft 10 rotates counterclockwise
When terminal, since the velocity of rotation of mechanism main shaft 10 is than very fast, mechanism main shaft 10 can have immediately one it is quickly anti-clockwise
Bullet, i.e., cantilever 9 rotates clockwise, and rebound velocity under the action of torsional spring 11 of swivel plate 8 is slower.
Separating brake spring halted state: when mechanism main shaft 10 drives cantilever 9 to rotate clockwise (rebound) certain very little angle
(this angle can get out of the way gap 205 by control to adjust) afterwards, the top of cantilever 9 is in contact with the blocking portion 82 of swivel plate 8.Such as
Shown in Fig. 9,303 > distance of distance 302+ distance 301 at this time, so cantilever 9 and mechanism main shaft 10 can not continue to rotate clockwise,
I.e. in arrested state (rebound stops), because the top of cantilever 9 and the blocking portion 82 of swivel plate 8 are rigid contacts, so mechanism
The Bounce distance of main shaft 10 is not influenced by contact pressure and tripping spring 4, always within the scope of a very little, and then is played
Anti-rebound effect.
Reseting stage, after the spring of mechanism main shaft 10 terminates, mechanism main shaft 10 is counterclockwise under the action of separating brake tension spring
Rotation, mechanism main shaft 10 drive cantilever 9 to rotate counterclockwise, so that the top of cantilever 9 is left the blocking portion 82 of swivel plate 8, such as Fig. 8 institute
Show, makes to generate between it and get out of the way gap 205.As shown in Figure 2 and Figure 5, swivel plate 8 rotates counterclockwise under the action of torsional spring 11,
Until the tip contact by impact portion 81 with cantilever 9 and the stopping of swivel plate 8, prepare to close a floodgate next time.
It is emphasized that: the above is only presently preferred embodiments of the present invention, not make in any form to the present invention
Limitation, any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention,
All of which are still within the scope of the technical scheme of the invention.
Claims (4)
1. a kind of moving contact of breaker resilience-proof device, it is characterised in that: including breaker body (3), be arranged in breaker sheet
Mechanism main shaft (10) and anti-rebound mechanism on body (3), the anti-rebound mechanism include being fixedly mounted on mechanism main shaft (10)
On cantilever (9), fixing axle (7), swivel plate (8), torsional spring (11), the first limit shaft (5) and the second limit shaft (6), it is described solid
Dead axle (7), the first limit shaft (5) and the second limit shaft (6) are fixedly mounted on the outer wall of breaker body (3), and the
One limit shaft (5) setting is arranged in the right side of fixing axle (7), the second limit shaft (6) in the lower section of fixing axle (7), the rotation
Plate (8) by being formed by impact portion (81), blocking portion (82) and mounting hole (83), the outer surface of the blocking portion (82) it is transversal
Face is shaped to convex structure, and the contour structure of arc-shaped is from lower end between upper end and mounting hole (83) center of circle
Distance is gradually reduced, and the swivel plate (8) is rotatably installed on fixing axle (7) by mounting hole (83), torsional spring (11) set
It connects on fixing axle (7), and two torque arm of torsional spring (7) are respectively acting on the second limit shaft (6) and swivel plate (8), institute
It states the turned position that the first limit shaft (5) and the second limit shaft (6) respectively revolve swivel plate (8) clockwise and anticlockwise and rotates into row
Limit.
2. moving contact of breaker resilience-proof device according to claim 1, it is characterised in that: it is described by impact portion (81) with
Recessing groove (84) are provided between blocking portion (82).
3. moving contact of breaker resilience-proof device according to claim 1, it is characterised in that: the end of the cantilever (9)
Cross-sectional shape be set as convex structure.
4. moving contact of breaker resilience-proof device according to claim 1, it is characterised in that: the cantilever (9) and mechanism
Main shaft (10) installs fixation by way of welding or riveting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149068.XA CN106783427B (en) | 2017-03-14 | 2017-03-14 | A kind of moving contact of breaker resilience-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149068.XA CN106783427B (en) | 2017-03-14 | 2017-03-14 | A kind of moving contact of breaker resilience-proof device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106783427A CN106783427A (en) | 2017-05-31 |
| CN106783427B true CN106783427B (en) | 2019-04-12 |
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ID=58962682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710149068.XA Active CN106783427B (en) | 2017-03-14 | 2017-03-14 | A kind of moving contact of breaker resilience-proof device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106783427B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659205A (en) * | 2017-10-12 | 2019-04-19 | 江苏高博锐电气有限公司 | A kind of disruptor clamp plate type bounce-proof mechanism |
| CN110556273A (en) * | 2018-05-30 | 2019-12-10 | 江苏大全凯帆开关有限公司 | Main shaft limiting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4263492A (en) * | 1979-09-21 | 1981-04-21 | Westinghouse Electric Corp. | Circuit breaker with anti-bounce mechanism |
| EP1988558A1 (en) * | 2007-05-04 | 2008-11-05 | EATON Corporation | Electrical switching apparatus, and yoke assembly and spring assembly therefor |
| CN102054631A (en) * | 2011-01-19 | 2011-05-11 | 西安交通大学 | Anti-bouncer for circuit breaker |
| CN203445072U (en) * | 2013-07-29 | 2014-02-19 | 上海良信电器股份有限公司 | Rebound-prevention device used for circuit breaker mechanism |
| CN204144181U (en) * | 2013-08-07 | 2015-02-04 | Abb公司 | For the electrical switchgear of low voltage circuit |
| CN105719857A (en) * | 2016-04-21 | 2016-06-29 | 环宇集团浙江高科有限公司 | Anti-bounce apparatus of automatic transfer switching equipment |
| CN206742179U (en) * | 2017-03-14 | 2017-12-12 | 江苏高博锐电气有限公司 | Moving contact of breaker resilience-proof device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52143484A (en) * | 1976-05-24 | 1977-11-30 | Hitachi Ltd | Breaker jump stopper |
| DE102014107265B4 (en) * | 2014-05-22 | 2020-01-02 | Eaton Intelligent Power Limited | switchgear |
-
2017
- 2017-03-14 CN CN201710149068.XA patent/CN106783427B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4263492A (en) * | 1979-09-21 | 1981-04-21 | Westinghouse Electric Corp. | Circuit breaker with anti-bounce mechanism |
| EP1988558A1 (en) * | 2007-05-04 | 2008-11-05 | EATON Corporation | Electrical switching apparatus, and yoke assembly and spring assembly therefor |
| CN102054631A (en) * | 2011-01-19 | 2011-05-11 | 西安交通大学 | Anti-bouncer for circuit breaker |
| CN203445072U (en) * | 2013-07-29 | 2014-02-19 | 上海良信电器股份有限公司 | Rebound-prevention device used for circuit breaker mechanism |
| CN204144181U (en) * | 2013-08-07 | 2015-02-04 | Abb公司 | For the electrical switchgear of low voltage circuit |
| CN105719857A (en) * | 2016-04-21 | 2016-06-29 | 环宇集团浙江高科有限公司 | Anti-bounce apparatus of automatic transfer switching equipment |
| CN206742179U (en) * | 2017-03-14 | 2017-12-12 | 江苏高博锐电气有限公司 | Moving contact of breaker resilience-proof device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106783427A (en) | 2017-05-31 |
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