CN107481897A - A kind of resilience-proof device of breaker - Google Patents
A kind of resilience-proof device of breaker Download PDFInfo
- Publication number
- CN107481897A CN107481897A CN201610399319.5A CN201610399319A CN107481897A CN 107481897 A CN107481897 A CN 107481897A CN 201610399319 A CN201610399319 A CN 201610399319A CN 107481897 A CN107481897 A CN 107481897A
- Authority
- CN
- China
- Prior art keywords
- gag lever
- lever post
- plate
- cantilever
- resilience
- 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.)
- Granted
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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
-
- 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
Abstract
The present invention relates to a kind of resilience-proof device of breaker, the resilience-proof device includes main shaft (11), the cantilever (1) being welded on main shaft (11), is arranged on the hanging plate (8) for being used to limit the gag lever post a (6) of cantilever turned position and be connected with cantilever (1) by rotating shaft b (7) below main shaft, rebound prevention device also includes power-assisted plate (4), the power-assisted plate (4) is bending plate, including side plate a and side plate b, power-assisted plate (4) is connected by rotating shaft a (5) with the cantilever；During original state, side plate a is located at the front of cantilever (1) flank；During gate-dividing state, one end of hanging plate (8) is connected with cantilever (1), and the other end of hanging plate (8) is tangent with gag lever post a (6) and compresses.Compared with prior art, the invention enables the effect prevented back is more obvious, anti-rebound reduction resilience is played a part of so that moving contact resilience during separating brake, which is reduced, prevents restriking for electric arc, protects burning for whole circuit.
Description
Technical field
The present invention relates to low voltage electrical apparatus technology field, and in particular to a kind of resilience-proof device of breaker.
Background technology
Quickly, and breaker mechanism all uses rigid material to speed during due to breaker open operation, so breaker
Bounce is serious during separating brake.The dynamic/static contact of breaker has very big bounce-back after most large opening is reached, its
Bounce amplitudes can reach out away from half in addition the situation that dynamic/static contact contacts again, this spring meeting occurs
Cause electric arc to extinguish even arc reignition in time, cause moving contact to be burnt with static contact, or even cause tighter
The consequence of weight.So it is always low-voltage electrical apparatus row that it is excessive, which to solve breaker snap-off-distance of moving contact during separating brake,
In the industry the problem of primary study.
Although industry is directed to finding always a kind of not only reliable but also simple mode and realizes bounce-proof function, one
Directly without particularly preferred scheme.The bounce-proof device of known breaker, including main shaft, driving member, connecting rod, only
Gear, locking member, pivot pin, gag lever post side plate, reduction torsion spring, described side plate are fixed in whole breaker cage,
Play support limit to breaker mechanism part, main shaft is through the spacing hole on side plate and can rotate, driving member
It is fixed on main shaft, connecting rod is connected with main shaft, and stop is fixed on side plate, and pivot pin is fixed on side plate, locking
Part is through pivot pin and can be rotated around pivot pin, and gag lever post is fixed on locking member, the limit that gag lever post is stretched on driving member
Position hole is simultaneously limited that hole is spacing, and reduction torsion spring is enclosed on pivot pin, and its effect is to make breaker in stable state, locks
Tight part will not fall down and influence breaker closing.Generally symmetrical two bounce-proofs that are provided with fill in breaker
Put.Its bounce-proof principle is：During breaker open operation, locking member rotates in an anti-clockwise direction together with main shaft, works as biography
Moving part and stop collision rift, moving contact of breaker rebound with driving member, but locking member is in the presence of inertia force,
Still there is the trend rotated counterclockwise, certain rotation is had relative to driving member so that locking member is collided and risen with stop
To the effect of bounce-proof.This known bounce-proof device can sometimes play bounce-proof in Short-Circuit High Current,
But reliability is not high；It can hardly be worked in short-circuit low current.Its reason mainly has：Relative to tension and compression bullet
Spring, the error of reduction torsion spring are difficult to control, and torsion spring parameter is excessive, cause locking member inadequate to lower swing, torsion spring ginseng
Number is too small, locking member may be caused just first to be collided before driving member and stop collision with stop, so that device loses
Effect；The current value that breaker cut-offs short circuit current is different, and then electrodynamic repulsion force is big greatly for short circuit current, so as to separating brake
Speed is fast, and the small then electrodynamic repulsion force of short circuit current is small, so as to which opening velocity is slow, in the case of different opening velocities, and lock
Amplitude from tight part to lower swing with regard to different, therefore such a bounce-proof device under some opening velocities will necessarily be caused
Do not work.Other such a bounce-proof device is integrally fixed on the driving member with main axis, will certainly influence open circuit
The divide-shut brake speed of device.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of anti-rebound effect
The resilience-proof device of more obvious breaker.
The purpose of the present invention can be achieved through the following technical solutions：A kind of resilience-proof device of breaker, this is anti-
Resilient mounting includes main shaft, the cantilever being welded on main shaft, is arranged on below main shaft for limiting cantilever turned position
Gag lever post a and the hanging plate that is connected by rotating shaft b with cantilever, described cantilever include head and the side with crotch
Wing a and flank b, described head are welded on the main shaft, and described gag lever post a is arranged on flank a and side
Between wing b, it is characterised in that described rebound prevention device also includes power-assisted plate, and the power-assisted plate is bending plate,
Including side plate a and side plate b, the power-assisted plate is connected by rotating shaft a with the cantilever；
During original state, the side plate a is located in front of flank a；Described side plate b keeps fixing by limitation；
During gate-dividing state, one end of the hanging plate is connected with cantilever, and the other end of hanging plate and the gag lever post a are tangent
And compress.
Described cantilever is provided with fix bar, gag lever post b, rotating shaft a, rotating shaft b and spacing hole, the hanging plate
One end is arranged on the rotating shaft b, and the middle part of described hanging plate is provided with a gag lever post c, and the gag lever post c can
Moved in the spacing hole.
The power-assisted plate is arranged on the rotating shaft a, and the middle part of the side plate b passes through extension spring and described fix bar
Connection, during original state, the side plate b contacts with the gag lever post b, makes side plate by extension spring and gag lever post b
B keeps fixing.
The side plate b can be rotated between described gag lever post b and gag lever post c.
Described rotating shaft b is provided with torsion spring, and one end of the torsion spring is leaned against on the main shaft, and the other end of torsion spring leans on
On the gag lever post c.
During original state, the gag lever post c and the spacing hole upper end are adjacent to, and keep hanging plate by torsion spring
It is fixed.
One end of the hanging plate is arranged on the rotating shaft b, and the other end of hanging plate is circular arc, during gate-dividing state,
With gag lever post a collisions and resilience, the gag lever post c first is driven in spacing hole by side plate b by the side plate a
Interior movement, so as to drive the hanging plate to be rotated around rotating shaft b, make one end of hanging plate circular arc and the gag lever post a
It is tangent and compress.
During original state, power-assisted plate is fixed on rotating shaft a, and extension spring is connected bar and power-assisted plate, and power-assisted plate is limiting
It is static under position bar b stop.Hanging plate is fixed on rotating shaft b, and one end is leaned against on main shaft, and the other end leans against limit
On the bar c of position so that hanging plate rotate counterclockwise encounters the upper end of the spacing hole on cantilever until gag lever post c, and hanging plate is protected
Hold static.Cantilever is welded on main shaft.
When separating brake, cantilever drives power-assisted plate and hanging plate to turn clockwise together, when touching gag lever post a, by
In the bottom of power-assisted plate gag lever post a is hit prior to cantilever so that a produces torque counterclockwise to power-assisted plate around the shaft,
Then power-assisted plate shock gag lever post c make it that b produces clockwise torque to hanging plate around the shaft, and then cantilever hits spacing
It is so-called resilience that bar a, which produces torque counterclockwise, and now hanging plate is given plus power-assisted plate due to the rotary inertia of itself
The clockwise torque given, bottom can touch gag lever post a and stop rotating counterclockwise for cantilever, reduce the resilience of cantilever
Distance.
Compared with prior art, beneficial effects of the present invention are embodied in the following aspects：
(1) it is simple in construction using the form of power-assisted plate and hanging plate；
(2) power-assisted plate can increase the kinetic energy of hanging plate so that and hanging plate has enough kinetic energy and the tangent compressions of spacing a,
So as to effectively prevent or reduce the rebound effect of cantilever so that moving contact resilience during separating brake is reduced and prevented
Electric arc is restriked, and protects burning for whole circuit.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention in an initial condition；
Fig. 2 is structural representation of the present invention under gate-dividing state.
Wherein, 1 is cantilever, and 2 be fix bar, and 3 be gag lever post b, and 4 be power-assisted plate, and 5 be rotating shaft a, and 6 are limited
Position bar a, 7 be rotating shaft b, and 8 be hanging plate, and 9 be gag lever post c, and 10 be torsion spring, and 11 be main shaft, and 12 be extension spring.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment enters under premised on technical solution of the present invention
Row is implemented, and gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
The embodiment stated.
Embodiment
A kind of resilience-proof device of breaker, the breaker include main shaft 11, the cantilever 1 being welded on main shaft 11
And be arranged on and be used for the gag lever post a6 for limiting cantilever turned position below main shaft, cantilever 1 includes head and two
Flank with crotch, head are welded on main shaft 11, and gag lever post a6 is arranged between two flanks, by with it is curved
Clasp joint touches the rotation amplitude for limiting cantilever 1.Cantilever 1 be provided with fix bar 2, gag lever post b3, rotating shaft a5, turn
Axle b7 and a spacing hole, resilience-proof device include one block of power-assisted plate 4 and one piece of hanging plate 8, one end of hanging plate 8
On rotating shaft b7, the middle part of hanging plate 8 is provided with a gag lever post c9, and gag lever post c9 can be in the spacing hole
Interior motion, power-assisted plate 4 are arranged on rotating shaft a5, power-assisted plate be with bending plate, including side plate a and side plate b,
Side plate b middle part is connected by extension spring 12 with fix bar 2.
During original state, the structure of the resilience-proof device as shown in figure 1, power-assisted plate 4 gag lever post b3 stop
And remains stationary under the pulling force of extension spring 12, and power-assisted plate 4 is not connected with the position of the side of extension spring 12 in cantilever 1
Before one flank, closer to gag lever post a6；Hanging plate 8 is fixed on rotating shaft b7, and rotary shaft 7 is provided with,
Torsion spring 10, one end of torsion spring 10 are leaned against on main shaft 11, and the other end is leaned against on gag lever post c9 so that hanging plate 8 is inverse
Hour hands rotate, and gag lever post c9 moves in the spacing hole on cantilever 1, when the upper end of gag lever post c9 contact spacing holes,
The remains stationary of hanging plate 8.
When separating brake, the structure of the resilience-proof device drives cantilever 1 to rotate as shown in Fig. 2 main shaft 11 rotates,
So as to drive power-assisted plate 4 and hanging plate 8 to turn clockwise together by rotating shaft a5 and rotating shaft b7, due to power-assisted plate 4
Side hit gag lever post a6 prior to cantilever 1 so that power-assisted plate produces torque counterclockwise around 4 rotating shaft a5, from
And making another side impaction gag lever post c9 of power-assisted plate 4 so that b7 produces clockwise torque to hanging plate 8 around the shaft,
Then it is so-called resilience that cantilever 1, which hits gag lever post a6 to produce torque counterclockwise, and now hanging plate 8 is due to itself
Rotary inertia add the clockwise torque given of power-assisted plate 4, bottom can touch gag lever post a6 and keep fixing,
So as to stop rotating counterclockwise for cantilever 1 by rotating shaft b7, the snap-off-distance of cantilever 1 is reduced.
Claims (8)
1. a kind of resilience-proof device of breaker, the resilience-proof device includes main shaft (11), is welded on main shaft (11)
On cantilever (1), be arranged on below main shaft and be used to limit the gag lever post a (6) of cantilever turned position and pass through
The hanging plate (8) that rotating shaft b (7) is connected with cantilever (1), described cantilever (1) include head and with crotches
Flank a and flank b, described head are welded on the main shaft (11), and described gag lever post a (6) is set
Between flank a and flank b, it is characterised in that described rebound prevention device also includes power-assisted plate (4), described
Power-assisted plate (4) is bending plate, including side plate a and side plate b, the power-assisted plate (4) by rotating shaft a (5) with
The cantilever connection；
During original state, the side plate a is located in front of flank a；Described side plate b keeps fixing by limitation；
During gate-dividing state, one end of the hanging plate (8) is connected with cantilever (1), the other end of hanging plate (8) with
The gag lever post a (6) is tangent and compresses.
2. the resilience-proof device of a kind of breaker according to claim 1, it is characterised in that described is outstanding
Arm (1) is provided with fix bar (2), gag lever post b (3), rotating shaft a (5), rotating shaft b (7) and spacing hole,
One end of the hanging plate (8) is arranged on the rotating shaft b (7), and the middle part of described hanging plate (8) is provided with one
Individual gag lever post c (9), the gag lever post c (9) can be moved in the spacing hole.
A kind of 3. resilience-proof device of breaker according to claim 2, it is characterised in that the power-assisted
Plate (4) is arranged on the rotating shaft a (5), and the middle part of the side plate b is consolidated by extension spring (12) with described
Fixed pole (2) connects, and during original state, the side plate b contacts with the gag lever post b (3), passes through extension spring (12)
Side plate b is set to keep fixing with gag lever post b (3).
A kind of 4. resilience-proof device of breaker according to claim 2, it is characterised in that the side plate
B can be rotated between described gag lever post b (3) and gag lever post c (9).
5. the resilience-proof device of a kind of breaker according to claim 2, it is characterised in that described turns
Axle b (7) is provided with torsion spring (10), and one end of the torsion spring (10) is leaned against on the main shaft (11), torsion spring
(10) the other end is leaned against on the gag lever post c (9).
A kind of 6. resilience-proof device of breaker according to claim 2, it is characterised in that original state
When, the gag lever post c (9) and the upper end of the spacing hole are adjacent to, and make hanging plate (8) by torsion spring (10)
Keep fixing.
A kind of 7. resilience-proof device of breaker according to claim 2, it is characterised in that the hanging plate
(8) one end is arranged on the rotating shaft b (7), and the other end of hanging plate (8) is circular arc, gate-dividing state
When, with the gag lever post a (6) collision and resilience, the gag lever post c first is driven by side plate b by the side plate a
(9) moved in spacing hole, so as to drive the hanging plate (8) to be rotated around rotating shaft b (7), make hanging plate (8)
One end of circular arc is tangent with the gag lever post a (6) and compresses.
A kind of 8. resilience-proof device of breaker according to claim 2, it is characterised in that described device
When being changed into gate-dividing state from original state, side plate a collision gag lever post a (6) resiliences of the power-assisted plate (4),
So that a (5) produces torque counterclockwise to power-assisted plate (4) around the shaft, side plate b hits gag lever post c (9) and caused
B (7) produces clockwise torque to hanging plate (8) around the shaft, and then cantilever (1) hits gag lever post a (6) and returned
Bullet, the clockwise torque that hanging plate (8) is given due to the rotary inertia of itself plus power-assisted plate (4), hanging plate (8)
It is tangent with the gag lever post a (6) and compress, reach gate-dividing state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399319.5A CN107481897B (en) | 2016-06-07 | 2016-06-07 | A kind of resilience-proof device of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399319.5A CN107481897B (en) | 2016-06-07 | 2016-06-07 | A kind of resilience-proof device of breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107481897A true CN107481897A (en) | 2017-12-15 |
| CN107481897B CN107481897B (en) | 2019-04-26 |
Family
ID=60593438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610399319.5A Active CN107481897B (en) | 2016-06-07 | 2016-06-07 | A kind of resilience-proof device of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107481897B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102054631A (en) * | 2011-01-19 | 2011-05-11 | 西安交通大学 | Anti-bouncer for circuit breaker |
| US20150144471A1 (en) * | 2013-11-26 | 2015-05-28 | General Electric Company | Circuit breaker including an anti-rebound system, anti-rebound system for a circuit breaker and method |
| CN205028832U (en) * | 2015-09-18 | 2016-02-10 | 常州阿斯博开关有限公司 | A spring mechanism in crossing for wind energy combined electrical apparatus |
| CN106128874A (en) * | 2015-05-04 | 2016-11-16 | 现代重工业株式会社 | Chopper |
| CN205920942U (en) * | 2016-06-07 | 2017-02-01 | 上海电器股份有限公司人民电器厂 | Circuit breaker prevent resilient mounting |
-
2016
- 2016-06-07 CN CN201610399319.5A patent/CN107481897B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102054631A (en) * | 2011-01-19 | 2011-05-11 | 西安交通大学 | Anti-bouncer for circuit breaker |
| US20150144471A1 (en) * | 2013-11-26 | 2015-05-28 | General Electric Company | Circuit breaker including an anti-rebound system, anti-rebound system for a circuit breaker and method |
| CN106128874A (en) * | 2015-05-04 | 2016-11-16 | 现代重工业株式会社 | Chopper |
| CN205028832U (en) * | 2015-09-18 | 2016-02-10 | 常州阿斯博开关有限公司 | A spring mechanism in crossing for wind energy combined electrical apparatus |
| CN205920942U (en) * | 2016-06-07 | 2017-02-01 | 上海电器股份有限公司人民电器厂 | Circuit breaker prevent resilient mounting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107481897B (en) | 2019-04-26 |
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