CN206742179U - Moving contact of breaker resilience-proof device - Google Patents
Moving contact of breaker resilience-proof device Download PDFInfo
- Publication number
- CN206742179U CN206742179U CN201720243491.1U CN201720243491U CN206742179U CN 206742179 U CN206742179 U CN 206742179U CN 201720243491 U CN201720243491 U CN 201720243491U CN 206742179 U CN206742179 U CN 206742179U
- Authority
- 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.)
- Withdrawn - After Issue
Links
Classifications
-
- 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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/504—Manual reset mechanisms which may be also used for manual release provided with anti-rebound means
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- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model discloses a kind of moving contact of breaker resilience-proof device, including breaker body, the mechanism main shaft being arranged on breaker body and anti-rebound mechanism, second limit shaft is arranged on the lower section of fixing axle, the swivel plate is by by impact portion, stop part and mounting hole composition, the shape of cross section of the outer surface of the stop part is arranged to 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 torsion spring is socketed in fixing axle, and two torque arm of torsion spring are respectively acting on the second limit shaft and swivel plate.Its is simple in construction, increase number of parts is few, occupies little space.Function is reliable simultaneously, the resilience of separating brake moving contact is being not random or is being influenceed 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 utility model belongs to technical field of low-volatile distribution equipment, more particularly, to a kind of operation for low-voltage circuit breaker
Mechanism arrangement.
Background technology：
In electrical power distribution apparatus, breaker is used to distribute the danger of electric energy and protection circuit and equipment from failures such as overload, short circuits
Evil.With the increase of power consumption and the development of high-power electric appliance, the various indexs of breaker are all constantly improving, particularly short
When be resistant to the raising of index, requirement to breaker also more and more higher.When volume of breaker etc. does not change, if will
Improve short durability performance, it is necessary to increase the force value of moving contact spring, contact will not be opened by reprimand when ensureing to be resistant in short-term, moving contact bullet
The increase of spring force value can cause moving contact separating brake in place after, moving contact bounce-back increase, cause effectively to open away from drastically reducing.Easily
Cause and restrike, cause the performance of product can not improve.
Breaker in the market is not limited the resilience of moving contact, causes breaking capacity not greatly improve,
Particularly some Wind Power Projects, the requirement of high target user can not be met.
The content of the invention：
Technical problem to be solved in the utility model is：A kind of spring-back resistant device for breaker is provided, to utilize separating brake
Shock makes swivel plate quickly move.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions：A kind of breaker moves
Contact resilience-proof device, including breaker body, the mechanism main shaft that is arranged on breaker body and anti-rebound mechanism, it is described
Anti-rebound mechanism includes cantilever, fixing axle, swivel plate, the limit shaft of torsion spring first and the second limit being fixedly mounted on mechanism main shaft
Position axle, the fixing axle, the first limit shaft and the second limit shaft are fixedly mounted on the outer wall of breaker body, and first
Limit shaft is arranged on the right side of fixing axle, and the second limit shaft is arranged on the lower section of fixing axle, and the swivel plate is by by impact portion, resistance
Stopper and mounting hole composition, the shape of cross section of the outer surface of the stop part are arranged to convex structure, and arc-shaped
Contour structure be gradually reduced from lower end to upper end with the distance between the mounting hole center of circle, the swivel plate is rotated by mounting hole
In fixing axle, the torsion spring is socketed in fixing axle, and two torque arm of torsion spring are respectively acting on the second limit shaft
On swivel plate, the turned position that first limit shaft and the second limit shaft revolve clockwise and anticlockwise to swivel plate respectively turns
Carry out spacing.
Preferably, described be provided with slot to make way between by impact portion and stop part.
Preferably, the shape of cross section of the end of the cantilever is arranged to convex structure.
Preferably, the cantilever installs fixation with mechanism main shaft by way of welding or riveting.
Compared with prior art, usefulness of the present utility model is：The utility model is simple in construction, increase number of parts
It is few, occupy little space.Function is reliable simultaneously, the resilience of separating brake moving contact is being not random or is being influenceed 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.
Brief description of the drawings：
The utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1：The axle 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 axle 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 is stepped 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 stop part of swivel plate prevents cantilever from rotating schematic diagram
Figure 10：The structural representation of swivel plate.
Embodiment：
Below in conjunction with the accompanying drawings and the utility model is described in detail embodiment：
A kind of moving contact of breaker resilience-proof device as shown in Figures 1 to 10, including breaker body 3, be arranged on it is disconnected
Mechanism main shaft 10 and anti-rebound mechanism on road device body 3, the anti-rebound mechanism include being fixedly mounted on mechanism main shaft 10
On cantilever 9, fixing axle 7, swivel plate 8, the limit shaft 5 of torsion spring 11 first and the second limit shaft 6, the fixing axle 7, first limits
The position limit shaft 6 of axle 5 and second is fixedly mounted on the outer wall of breaker body 3, and the first limit shaft 5 is arranged on fixing axle
7 right side, the second limit shaft 6 are arranged on the lower section of fixing axle 7, and the swivel plate 8 is by by impact portion 81, stop part 82 and peace
Dress hole 83 forms, and the shape of cross section of the outer surface of the stop part 82 is arranged to convex structure, and the wheel of arc-shaped
Wide structure is gradually reduced from lower end to upper end with the distance between the center of circle of mounting hole 83, and the swivel plate 8 passes through 83 turns of mounting hole
Dynamic to be arranged in fixing axle 7, the torsion spring 11 is socketed in fixing axle 7, and two torque arm of torsion spring 11 are respectively acting on the
On two limit shafts 6 and swivel plate 8, the limit shaft 6 of the first limit shaft 5 and second respectively to swivel plate 8 clockwise and anticlockwise
It is spacing that the turned position of rotation rotates into row.
It is described to be provided with slot to make way 84 between by impact portion 81 and stop part 82, cantilever 9 by separating brake elastic force pulling force from
It after opening stop part 82, can be placed in slot to make way 84, ensure that cantilever 9 does not interfere with swivel plate 8, and then be advantageous to swivel plate 8
RestPose.
The shape of cross section of the end of the cantilever 9 is arranged to convex structure, using this structure, cantilever 9 with rotation
The contact position of the stop part 82 of flap 8 is only at the top of cantilever 9, and then ensure that the Impact direction directing mechanism main shaft of cantilever 9
10 circle, while be also beneficial to swivel plate 8 and reset.
As preferable fixed form between cantilever 9 and mechanism main shaft 10, the cantilever 9 passes through weldering with mechanism main shaft 10
The mode for connecing or riveting installs fixation.
As shown in figure 4, when breaker is in "on" position, cantilever 9 is fixed on mechanism main shaft 10 by modes such as welding,
And rotated with mechanism main shaft 10；Dynamic contact mechanism 2 is connected with mechanism main shaft 10, and dynamic contact mechanism 2 and mechanism master
The synchronous axial system of axle 10, dynamic contact mechanism 2 are contacted and compressed with static contact mechanism 1, realize that circuit is connected.
Breaker open operation process：First, as shown in figure 4, mechanism main shaft 10 is in the presence of contact pressure and separating brake extension spring,
Rotate counterclockwise and 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 8 quick rotation clockwise of swivel plate, when mechanism main shaft 10 will
During 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.
Bounced the stage followed by separating brake：Dynamic contact mechanism 2 is driven to move to separating brake when mechanism main shaft 10 rotates counterclockwise
During terminal, because the velocity of rotation of mechanism main shaft 10 is than very fast, therefore mechanism main shaft 10 can have immediately one it is quick anti-clockwise
Bullet, i.e., cantilever 9 rotates clockwise, and the rebound velocity in the presence of torsion spring 11 of swivel plate 8 is slower.
Separating brake spring halted state：When mechanism main shaft 10 drives cantilever 9 to rotate clockwise (bounce-back) certain very little angle
(this angle can get out of the way gap 205 to adjust by control) afterwards, the top of cantilever 9 is in contact with the stop part 82 of swivel plate 8.
As shown in figure 9, now distance 302+ distances 303>Distance 301, so cantilever 9 and mechanism main shaft 10 can not continue to turn clockwise
It is dynamic, i.e., in arrested state (bounce-back stops), because the top of cantilever 9 and the stop part 82 of swivel plate 8 are rigid contacts, so machine
The Bounce distance of structure main shaft 10 is not influenceed by contact pressure and tripping spring 4, all the time within the scope of a very little, Jin Erqi
To anti-rebound effect.
Reseting stage, after the spring of mechanism main shaft 10 terminates, mechanism main shaft 10 is counterclockwise in the presence of separating brake extension spring
Rotation, mechanism main shaft 10 drive the rotate counterclockwise of cantilever 9, the top of cantilever 9 is left the stop part 82 of swivel plate 8, such as Fig. 8 institutes
Show, make to produce between it and get out of the way gap 205.As shown in Figure 2 and Figure 5, swivel plate 8 rotates counterclockwise in the presence of torsion spring 11,
Until the tip contact by impact portion 81 and cantilever 9 of swivel plate 8 and stopping, preparing to close a floodgate next time.
It is emphasized that：It the above is only preferred embodiment of the present utility model, not the utility model appointed
What formal limitation, every any simple modification made according to the technical essence of the utility model to above example, etc.
With change and modification, in the range of still falling within technical solutions of the utility model.
Claims (4)
- A kind of 1. moving contact of breaker resilience-proof device, it is characterised in that:Including breaker body（3）, be arranged on breaker sheet Body（3）On mechanism main shaft（10）And anti-rebound mechanism, the anti-rebound mechanism include being fixedly mounted on mechanism main shaft（10） On cantilever（9）, fixing axle（7）, swivel plate（8）, torsion spring（11）First limit shaft（5）With the second limit shaft（6）, the fixation Axle（7）, the first limit shaft（5）With the second limit shaft（6）It is fixedly mounted on breaker body（3）Outer wall on, and first Limit shaft（5）It is arranged on fixing axle（7）Right side, the second limit shaft（6）It is arranged on fixing axle（7）Lower section, the swivel plate （8）By by impact portion（81）, stop part（82）And mounting hole（83）Composition, the stop part（82）Outer surface cross section Convex structure is shaped to, and the contour structure of arc-shaped is from lower end to upper end and mounting hole（83）Between the center of circle away from From being gradually reduced, the swivel plate（8）Pass through mounting hole（83）It is rotatably installed in fixing axle（7）On, the torsion spring（11）Socket In fixing axle（7）On, and torsion spring（11）Two torque arm be respectively acting on the second limit shaft（6）And swivel plate（8）On, it is described First limit shaft（5）With the second limit shaft（6）Respectively to swivel plate（8）The turned position revolved clockwise and anticlockwise rotates into capable limit Position.
- 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 Stop part（82）Between be provided with slot to make way（84）.
- 3. moving contact of breaker resilience-proof device according to claim 1, it is characterised in that：The cantilever（9）End Shape of cross section be arranged to convex structure.
- 4. moving contact of breaker resilience-proof device according to claim 1, it is characterised in that：The cantilever（9）With mechanism Main shaft（10）Fixation is installed by way of welding or riveting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720243491.1U CN206742179U (en) | 2017-03-14 | 2017-03-14 | Moving contact of breaker resilience-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720243491.1U CN206742179U (en) | 2017-03-14 | 2017-03-14 | Moving contact of breaker resilience-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206742179U true CN206742179U (en) | 2017-12-12 |
Family
ID=60557466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720243491.1U Withdrawn - After Issue CN206742179U (en) | 2017-03-14 | 2017-03-14 | Moving contact of breaker resilience-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206742179U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783427A (en) * | 2017-03-14 | 2017-05-31 | 江苏高博锐电气有限公司 | A kind of moving contact of breaker resilience-proof device |
| CN108493064A (en) * | 2018-03-30 | 2018-09-04 | 上海良信电器股份有限公司 | A kind of breaker bounce-proof auxiliary contact |
| CN110164739A (en) * | 2019-05-27 | 2019-08-23 | 上海电气集团股份有限公司 | A kind of resilience-proof device of universal low-voltage circuit breaker |
-
2017
- 2017-03-14 CN CN201720243491.1U patent/CN206742179U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783427A (en) * | 2017-03-14 | 2017-05-31 | 江苏高博锐电气有限公司 | A kind of moving contact of breaker resilience-proof device |
| CN106783427B (en) * | 2017-03-14 | 2019-04-12 | 江苏高博锐电气有限公司 | A kind of moving contact of breaker resilience-proof device |
| CN108493064A (en) * | 2018-03-30 | 2018-09-04 | 上海良信电器股份有限公司 | A kind of breaker bounce-proof auxiliary contact |
| CN110164739A (en) * | 2019-05-27 | 2019-08-23 | 上海电气集团股份有限公司 | A kind of resilience-proof device of universal low-voltage circuit breaker |
| CN110164739B (en) * | 2019-05-27 | 2021-01-29 | 上海电气集团股份有限公司 | Anti-rebound device of universal low-voltage circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171212 Effective date of abandoning: 20190412 |