CN205920942U - Circuit breaker prevent resilient mounting - Google Patents
Circuit breaker prevent resilient mounting Download PDFInfo
- Publication number
- CN205920942U CN205920942U CN201620547299.7U CN201620547299U CN205920942U CN 205920942 U CN205920942 U CN 205920942U CN 201620547299 U CN201620547299 U CN 201620547299U CN 205920942 U CN205920942 U CN 205920942U
- Authority
- CN
- China
- Prior art keywords
- cantilever
- gag lever
- lever post
- plate
- 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.)
- Withdrawn - After Issue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 relates to a circuit breaker prevent resilient mounting, should prevent resilient mounting include cantilever (1) on main shaft (11) of main shaft (11), welding, set up the main shaft below be used for injecing cantilever turned position gag lever post a (6) and through link plate (8) that pivot b (7) and cantilever (1) are connected, prevent that resilient mounting still includes helping hand board (4), these helping hand board (4) are bending plate, including curb plate an and curb plate b, helping hand board (4) are connected with the cantilever through pivot a (5), during initial condition, curb plate an is located the place ahead of cantilever (1) flank, during the separating brake state, the one end of link plate (8) is connected with cantilever (1), and the other end of link plate (8) tangent and compress tightly with gag lever post a (6). Compared with the prior art, the utility model discloses the feasible effect of preventing back is more obvious, and it prevents kick -backing to play reduces the effect of kick -backing for the moving contact prevents restriking of electric arc in the in -process resilience reduction of separating brake, protects burning out of whole circuit.
Description
Technical field
This utility model is related to low voltage electrical apparatus technology field and in particular to a kind of resilience-proof device of chopper.
Background technology
Due to during breaker open operation speed quickly, and breaker mechanism all adopts rigid material, so breaker open operation
When bounce serious.The dynamic/static contact of chopper, after reaching large opening, has very big bounce-back, and its bounce amplitudes is permissible
Reach out away from half even situation that dynamic/static contact again contact occurs, this spring can cause electric arc can not put out in time
Go out even arc reignition, leads to moving contact to burn with static contact, or even causes more serious consequence.So solve chopper existing
The problem of primary study in the excessive always low voltage electrical apparatus industry of the snap-off-distance of moving contact during separating brake.
Although industry is devoted to searching one kind always, and not only reliable but also simple mode realizes bounce-proof function, do not have always
There is particularly preferred scheme.The bounce-proof device of known chopper, including main shaft, driving member, connecting rod, backstop, locking member, axle
Pin, gag lever post side plate, reduction torsion spring, described side plate is fixed in whole chopper cage, breaker mechanism part is risen and props up
Support position-limiting action, main shaft pass through side plate on spacing hole and can rotate, driving member is fixed on main shaft, and connecting rod is connected with main shaft
Connect, stop is fixed on side plate, pivot pin is fixed on side plate, locking member passes through pivot pin and can rotate around pivot pin, and gag lever post is solid
It is scheduled on locking member, gag lever post stretches into the spacing hole on driving member and limited hole is spacing, and reduction torsion spring is enclosed within pivot pin, its work
With being to make chopper in steady statue, locking member will not fall down and affect breaker closing.Generally symmetrical in chopper
Two bounce-proof devices are installed.Its bounce-proof principle is: during breaker open operation, locking member is square counterclockwise together with main shaft
To rotation, when driving member and stop collision rift, moving contact of breaker rebounds with driving member, but locking member is in the work of inertia force
With under, still have the trend rotating counterclockwise, have certain rotation so that locking member is collided with stop and plays relative to driving member
The effect of bounce-proof.Bounce-proof device known to this sometimes can play the effect of bounce-proof in Short-Circuit High Current, but reliable
Property is not high；Can hardly work in short-circuit small current.Its reason mainly has: with respect to drawing-pressing spring, the mistake of reduction torsion spring
Difference is wayward, and torsion spring parameter is excessive, causes locking member swung downward not, torsion spring parameter is too small, is likely to result in locking member
Just first and stop collision before driving member with stop collision, so that failure of apparatus；Chopper cut-offs the electric current of short circuit current
Value is different, short circuit current greatly then electrodynamic repulsion force big, thus opening velocity is fast, the little then electrodynamic repulsion force of short circuit current is little, thus
Opening velocity is slow, and in the case of different opening velocities, the amplitude of locking member swung downward is just different, therefore will necessarily cause
Under some opening velocities, this kind of bounce-proof device is inoperative.In addition this kind of bounce-proof device is integrally fixed at the biography with main axis
The divide-shut brake speed of chopper on moving part, will certainly be affected.
Utility model content
The purpose of this utility model is exactly to overcome the defect of above-mentioned prior art presence to provide a kind of anti-rebound work
The resilience-proof device of the chopper with becoming apparent from.
The purpose of this utility model can be achieved through the following technical solutions: a kind of resilience-proof device of chopper, should
Resilience-proof device includes main shaft, the cantilever being welded on main shaft, is arranged on below main shaft for limiting the limit of cantilever turned position
Position bar a and the link plate being connected with cantilever by rotating shaft b, described cantilever includes head and the flank a with crotch and flank b,
Described head is welded on described main shaft, and described gag lever post a is arranged between flank a and flank b it is characterised in that institute
The resilience-proof device stated also includes power-assisted plate, and described power-assisted plate is bending plate, and including side plate a and side plate b, described power-assisted plate passes through
Rotating shaft a is connected with described cantilever；
During original state, described side plate a is located in front of flank a；Described side plate b is limited holding and is fixed；
During gate-dividing state, one end of described link plate is connected with cantilever, and the other end of link plate is tangent with described gag lever post a and presses
Tightly.
Described cantilever is provided with fix bar, gag lever post b, rotating shaft a, rotating shaft b and spacing hole, and one end of described link plate is installed
On described rotating shaft b, the middle part of described link plate is provided with a gag lever post c, and described gag lever post c can transport in described spacing in the hole
Dynamic.
Described power-assisted plate is arranged on described rotating shaft a, and extension spring is passed through with described fix bar even in the middle part of described side plate b
Connect, during original state, described side plate b is contacted with described gag lever post b, make side plate b keep fixing by extension spring and gag lever post b.
Described side plate b can rotate between described gag lever post b and gag lever post c.
Described rotating shaft b is provided with torsion spring, and one end of described torsion spring leans against on described main shaft, and the other end of torsion spring leans against institute
State on gag lever post c.
During original state, described gag lever post c is adjacent to the upper end of described spacing hole, and makes link plate keep solid by torsion spring
Fixed.
One end of described link plate is arranged on described rotating shaft b, and the other end of link plate is circular arc, during gate-dividing state, described
Side plate a is first collided and resilience with described gag lever post a, drives described gag lever post c to move in spacing in the hole by side plate b, thus carrying
Move described link plate to rotate around rotating shaft b, make one end of link plate circular arc tangent with described gag lever post a 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 in gag lever post b
Stop under static.Link plate is fixed on rotating shaft b, and one end leans against on main shaft, and the other end leans against on gag lever post c so that hanging
Plate rotate counterclockwise encounters the upper end of the spacing hole on cantilever, link plate remains stationary until gag lever post c.Cantilever is welded on main shaft
On.
When separating brake, cantilever drives power-assisted plate to turn clockwise together with link plate, when touching gag lever post a, due to helping
The bottom of power plate clash into gag lever post a prior to cantilever so that power-assisted plate a produces torque counterclockwise around the shaft, then power-assisted plate hits
Hit gag lever post c and make the link plate clockwise torque of b generation around the shaft, then cantilever clashes into gag lever post a generation torque counterclockwise
I.e. so-called resilience, the clockwise torque that now link plate is given plus power-assisted plate due to the rotary inertia of itself, bottom can contact
Stop rotating counterclockwise of cantilever to gag lever post a, reduce the snap-off-distance of cantilever.
Compared with prior art, the beneficial effects of the utility model are embodied in:
(1) in the form of power-assisted plate and link plate, structure is simple；
(2) power-assisted plate can increase the kinetic energy of link plate so that link plate has enough kinetic energy and the tangent compression of spacing a, thus
It is effectively prevented or reduces the rebound effect of cantilever so that moving contact resilience during separating brake reduces the weight preventing electric arc
Combustion, protects burning of whole circuit.
Brief description
Fig. 1 is this utility model structural representation in an initial condition；
Fig. 2 is structural representation under gate-dividing state for this utility model.
Wherein, 1 is cantilever, and 2 is fix bar, and 3 is gag lever post b, and 4 is power-assisted plate, and 5 is rotating shaft a, and 6 is gag lever post a, and 7 is to turn
Axle b, 8 is link plate, and 9 is gag lever post c, and 10 is torsion spring, and 11 is main shaft, and 12 is extension spring.
Specific embodiment
Below embodiment of the present utility model is elaborated, the present embodiment is being front with technical solutions of the utility model
Put and implemented, give detailed embodiment and specific operating process, but protection domain of the present utility model does not limit
In following embodiments.
Embodiment
A kind of resilience-proof device of chopper, this chopper includes main shaft 11, the cantilever 1 being welded on main shaft 11 and sets
Put and be used for limiting the gag lever post a6 of cantilever turned position below main shaft, cantilever 1 includes head and two flanks with crotch, head
Portion is welded on main shaft 11, and gag lever post a6 is arranged between two flanks, by contacting the rotation width limiting cantilever 1 with crotch
Degree.Cantilever 1 is provided with fix bar 2, gag lever post b3, rotating shaft a5, rotating shaft b7 and a spacing hole, and resilience-proof device includes one piece to be helped
Power plate 4 and one piece of link plate 8, one end of link plate 8 is arranged on rotating shaft b7, and the middle part of link plate 8 is provided with a gag lever post c9, gag lever post
C9 can move in described spacing in the hole, and power-assisted plate 4 is arranged on rotating shaft a5, and power-assisted plate is with bending plate, including side plate a and side plate
The middle part of b, side plate b is connected with fix bar 2 by extension spring 12.
During original state, the structure of this resilience-proof device is as shown in figure 1, power-assisted plate 4 in the stop of gag lever post b3 and draws
Remains stationary under the pulling force of spring 12, and power-assisted plate 4 is not connected with the position of extension spring 12 side before 1 one flanks of cantilever, more
Near gag lever post a6；Link plate 8 is fixed on rotating shaft b7, and rotary shaft 7 is provided with, torsion spring 10, and one end of torsion spring 10 leans against main shaft 11
On, the other end leans against on gag lever post c9 so that link plate 8 rotate counterclockwise, and gag lever post c9 moves in the spacing hole on cantilever 1,
When gag lever post c9 contacts the upper end of spacing hole, link plate 8 remains stationary.
When separating brake, the structure of this resilience-proof device drives cantilever 1 to rotate, thus passing through as shown in Fig. 2 main shaft 11 rotates
Rotating shaft a5 and rotating shaft b7 drives power-assisted plate 4 to turn clockwise together with link plate 8, and the side due to power-assisted plate 4 is clashed into prior to cantilever 1
Gag lever post a6 is so that power-assisted plate produces torque counterclockwise around 4 rotating shaft a5, so that another side impaction gag lever post of power-assisted plate 4
C9 so that link plate 8 b7 produces clockwise torque around the shaft, then cantilever 1 clashes into gag lever post a6 and produces torque counterclockwise and is
So-called resilience, the clockwise torque that now link plate 8 is given plus power-assisted plate 4 due to the rotary inertia of itself, bottom can contact
Keep fixing to gag lever post a6, thus rotating counterclockwise of cantilever 1 is stopped by rotating shaft b7, reduce the snap-off-distance of cantilever 1.
Claims (7)
1. a kind of resilience-proof device of chopper, this resilience-proof device includes main shaft (11), the cantilever being welded on main shaft (11)
(1), it is arranged on the gag lever post a (6) being used for limiting cantilever turned position below main shaft and connected with cantilever (1) by rotating shaft b (7)
The link plate (8) connecing, described cantilever (1) includes head and the flank a with crotch and flank b, and described head is welded on described
On main shaft (11), described gag lever post a (6) is arranged between flank a and flank b it is characterised in that described resilience-proof device
Also include power-assisted plate (4), described power-assisted plate (4) is bending plate, including side plate a and side plate b, described power-assisted plate (4) passes through rotating shaft a
(5) it is connected with described cantilever；
During original state, described side plate a is located in front of flank a；Described side plate b is limited holding and is fixed；
During gate-dividing state, one end of described link plate (8) is connected with cantilever (1), the other end of link plate (8) and described gag lever post a (6)
Tangent and compress.
2. a kind of resilience-proof device of chopper according to claim 1 is it is characterised in that set on described cantilever (1)
There are fix bar (2), gag lever post b (3), rotating shaft a (5), rotating shaft b (7) and a spacing hole, one end of described link plate (8) is arranged on described
On rotating shaft b (7), the middle part of described link plate (8) is provided with a gag lever post c (9), and described gag lever post c (9) can be in described spacing hole
Interior motion.
3. a kind of resilience-proof device of chopper according to claim 2 is it is characterised in that described power-assisted plate (4) is installed
On described rotating shaft a (5), the middle part of described side plate b is connected with described fix bar (2) by extension spring (12), during original state,
Described side plate b is contacted with described gag lever post b (3), makes side plate b keep fixing by extension spring (12) and gag lever post b (3).
4. a kind of resilience-proof device of chopper according to claim 2 is it is characterised in that described side plate b can be described
Gag lever post b (3) and gag lever post c (9) between rotate.
5. a kind of resilience-proof device of chopper according to claim 2 is it is characterised in that set on described rotating shaft b (7)
There is torsion spring (10), one end of described torsion spring (10) leans against on described main shaft (11), the other end of torsion spring (10) leans against described spacing
On bar c (9).
6. a kind of resilience-proof device of chopper according to claim 2 is it is characterised in that during original state, described limit
Position bar c (9) is adjacent to the upper end of described spacing hole.
7. a kind of resilience-proof device of chopper according to claim 1 is it is characterised in that one end of described link plate (8)
It is arranged on described rotating shaft b (7), the other end of link plate (8) is circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620547299.7U CN205920942U (en) | 2016-06-07 | 2016-06-07 | Circuit breaker prevent resilient mounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620547299.7U CN205920942U (en) | 2016-06-07 | 2016-06-07 | Circuit breaker prevent resilient mounting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205920942U true CN205920942U (en) | 2017-02-01 |
Family
ID=57876805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620547299.7U Withdrawn - After Issue CN205920942U (en) | 2016-06-07 | 2016-06-07 | Circuit breaker prevent resilient mounting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205920942U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481897A (en) * | 2016-06-07 | 2017-12-15 | 上海电器股份有限公司人民电器厂 | A kind of resilience-proof device of breaker |
| CN107489687A (en) * | 2017-09-11 | 2017-12-19 | 刘振峰 | Rapid unhooking mechanism with auxiliary catch |
| 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 |
| CN112490028A (en) * | 2019-09-12 | 2021-03-12 | 施耐德电器工业公司 | Electrical switching unit with separable contacts |
| US11114255B2 (en) | 2018-07-30 | 2021-09-07 | Schneider Electric Industries Sas | Anti-rebounding lever within a switching device |
-
2016
- 2016-06-07 CN CN201620547299.7U patent/CN205920942U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481897A (en) * | 2016-06-07 | 2017-12-15 | 上海电器股份有限公司人民电器厂 | A kind of resilience-proof device of breaker |
| CN107489687A (en) * | 2017-09-11 | 2017-12-19 | 刘振峰 | Rapid unhooking mechanism with auxiliary catch |
| CN107489687B (en) * | 2017-09-11 | 2020-06-30 | 刘振峰 | Quick unhooking mechanism with safety hook |
| 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 |
| US11114255B2 (en) | 2018-07-30 | 2021-09-07 | Schneider Electric Industries Sas | Anti-rebounding lever within a switching device |
| EP3605581B1 (en) * | 2018-07-30 | 2022-06-15 | Schneider Electric Industries SAS | Electrical switching device with separable contacts |
| CN112490028A (en) * | 2019-09-12 | 2021-03-12 | 施耐德电器工业公司 | Electrical switching unit with separable contacts |
| EP3792949A1 (en) * | 2019-09-12 | 2021-03-17 | Schneider Electric Industries SAS | Electrical switching apparatus with separable contacts |
| FR3100921A1 (en) * | 2019-09-12 | 2021-03-19 | Schneider Electric Industries Sas | Electrical switching device with separable contacts |
| US11062858B2 (en) * | 2019-09-12 | 2021-07-13 | Schneider Electric Industries Sas | Electrical switching unit with separable contacts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170201 Effective date of abandoning: 20190426 |