CN109659205A - A kind of disruptor clamp plate type bounce-proof mechanism - Google Patents
A kind of disruptor clamp plate type bounce-proof mechanism Download PDFInfo
- Publication number
- CN109659205A CN109659205A CN201710944178.5A CN201710944178A CN109659205A CN 109659205 A CN109659205 A CN 109659205A CN 201710944178 A CN201710944178 A CN 201710944178A CN 109659205 A CN109659205 A CN 109659205A
- Authority
- CN
- China
- Prior art keywords
- snap
- gauge
- cantilever
- shaft
- mounting portion
- 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.)
- Pending
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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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/121—Protection of release mechanisms
Abstract
The invention discloses a kind of disruptor clamp plate type bounce-proof mechanisms, including breaker body, and the mechanism main shaft on breaker body and disjunction backstop axis are set, cantilever is additionally provided on the breaker body, snap-gauge, snap-gauge shaft and tension spring, first mounting portion of the cantilever is fixedly mounted on mechanism main shaft, the snap-gauge shaft is fixedly mounted on the second mounting portion of cantilever, the rear end thereof of the snap-gauge is mounted in snap-gauge shaft, the front end of the snap-gauge is fixedly installed limit shaft, the limit shaft is placed in limit hole, the both ends of the tension spring are respectively acting on cantilever and snap-gauge, the separating brake backstop axis limits the extreme rotational position of cantilever limiting section.The present invention has the advantages that structure is simple, increase number of parts is few, occupies little space, the rebound of separating brake moving contact is no longer random or is 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 low pressure switchgear technical fields, more particularly, to a kind of disruptor clamp plate type bounce-proof mechanism.
Background technique
In electric appliance, breaker for distributing electric energy and protection circuit and equipment from the harm of the failures such as overload, short circuit, with
The intelligent development of power grid, electrical network capacity constantly expanding, electric system is to the performance requirement for circuit protecting switch
It is higher and higher.For electrical power distribution apparatus, the breaking capacity of breaker is always the important test index of practical application.In order to make
Product breaking speed is accelerated, and achievees the purpose that improve disjunction index, existing market common practice has: enlarging mechanism spring force and
Touch spring power, this two force value increases, so that the breaking speed of breaker is fast, but there are drawbacks for this way, due to increasing
Mechanism spring force and touch spring power, the increase of moving contact spring force value will lead to moving contact separating brake in place after, moving contact
Rebound increases, and then causes effectively to open away from drastically reducing, and so easily causes and restrikes, reduces disjunction index instead.
Summary of the invention
It is stuck on disjunction backstop axis the technical problems to be solved by the present invention are: providing one kind by snap-gauge, anti-locking mechanism
The breaker bounce-proof structure of main shaft rebound.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions: a kind of disruptor clamp plate type
Bounce-proof mechanism, including breaker body, and the mechanism main shaft and disjunction backstop axis that are arranged on breaker body, it is described disconnected
It is additionally provided with cantilever, snap-gauge, snap-gauge shaft and tension spring on the device ontology of road, is provided with the first mounting portion, second on the cantilever
Mounting portion and limiting section are also provided with limit hole, the first mounting portion of the cantilever between second mounting portion and limiting section
It is fixedly mounted on mechanism main shaft, the snap-gauge shaft is fixedly mounted on the second mounting portion of cantilever, the rear end of the snap-gauge
It is rotatably installed in snap-gauge shaft, the front end of the snap-gauge is fixedly installed limit shaft, and the limit shaft is placed in limit hole, institute
The both ends for stating tension spring are respectively acting on cantilever and snap-gauge, the separating brake backstop axis to the extreme rotational position of cantilever limiting section into
Row limit.
Preferably, the confined planes that the snap-gauge is contacted with disjunction backstop axis are set as planar structure.
Preferably, being installed by way of welding or riveting between the first mounting portion and mechanism main shaft of the cantilever solid
It is fixed.
Preferably, the snap-gauge rear end is rotatably installed in snap-gauge shaft by bearing.
Compared with prior art, usefulness of the present invention is:
1, the present invention has the advantages that structure is simple, increase number of parts is few, occupies little space, and the rebound of separating brake moving contact is no longer
It is random or influenced by moving contact spring, but constant in the range of a very little, and then improve the disjunction of breaker
Be resistant to performance in short-term.
2, it is being mounted on when colliding after disjunction backstop axis and not yet starting rebound of separating brake main shaft upper cantilever, snap-gauge is used
Property under the action of continue around snap-gauge shaft and rotate counterclockwise to extreme position, then cantilever and snap-gauge start to spring back, due to outstanding
Arm rebound velocity is fast, and snap-gauge rebound velocity is slow, and poor using this time, snap-gauge is stuck on disjunction backstop axis, therefore can be prevented
Mechanism main shaft springback capacity is excessive, and the springback capacity of mechanism main shaft is limited in a constant and minimum range by guarantee.
Detailed description of the invention:
The following further describes the present invention with reference to the drawings.
Fig. 1 is the structural schematic diagram that breaker is in "on" position.
Fig. 2 is the structural schematic diagram that snap-gauge rotates counterclockwise under the action of inertia.
Structural schematic diagram of the snap-gauge in firmly disjunction backstop axis while Fig. 3 is the rebound of mechanism main shaft.
Fig. 4 is the status architecture schematic diagram that breaker open operation is completed.
Fig. 5 is the structural schematic diagram of cantilever.
Fig. 6 is the structural schematic diagram that limit shaft is mounted on snap-gauge.
Specific embodiment:
With reference to the accompanying drawing and specific embodiment the present invention will be described in detail:
A kind of disruptor clamp plate type bounce-proof mechanism as shown in Figures 1 to 6, including breaker body 1, and be arranged in open circuit
Mechanism main shaft 2 and disjunction backstop axis 3 on device ontology 1 are additionally provided with cantilever 4, snap-gauge 5, snap-gauge on the breaker body 1 and turn
Axis 6 and tension spring are provided with the first mounting portion 41, the second mounting portion 42 and limiting section 43, second installation on the cantilever 4
Limit hole 44 is also provided between portion 42 and limiting section 43, the first mounting portion 41 of the cantilever 4 is fixedly mounted on mechanism main shaft 2
On, the snap-gauge shaft 6 is fixedly mounted on the second mounting portion 42 of cantilever 4, and the rear end thereof of the snap-gauge 5 is mounted on snap-gauge
In shaft 6, the front end of the snap-gauge 5 is fixedly installed limit shaft 51, and the limit shaft 51 is placed in limit hole 44, the tension spring
Both ends be respectively acting on cantilever 4 and snap-gauge 5, the separating brake backstop axis 3 to the extreme rotational position of 4 limiting section 43 of cantilever into
Row limit.
Breaker open operation process is as follows:
As shown in Figure 1, mechanism main shaft 2 is in closing position, snap-gauge 5, in state shown in Fig. 1, connects down under the action of tension spring
Carry out separating brake to start, mechanism main shaft 2 and cantilever 4 rotate counterclockwise under the action of separating brake tension spring, since snap-gauge 5 passes through snap-gauge shaft
6 are rotatably installed on cantilever 4, therefore snap-gauge 5 is rotated counterclockwise with cantilever 4, until cantilever 4 turns to 3 phase of disjunction backstop axis
Contact, cantilever 4 stops operating, and will start to bounce, and before cantilever 4 not yet starts spring, snap-gauge 5 is under the action of inertia gram
The pulling force of tension spring is taken, is continued at position position shown in rotation Fig. 2 counterclockwise；
The spring stage, as shown in figure 3, cantilever 4 and snap-gauge 5 start to spring back clockwise, since the rebound velocity of snap-gauge 5 is slower,
Therefore during cantilever 4 is sprung back, snap-gauge 5 blocks disjunction backstop axis 3, avoids 4 springback capacity of cantilever excessive, and can be by cantilever
4 springback capacity is limited in constant and lesser range；
Separating brake completes the stage, and then under the action of separating brake tension spring, the rotation counterclockwise again of cantilever 4, snap-gauge 5 is likewise as cantilever
4 rotationally disengage disjunction backstop axis 3 counterclockwise, until cantilever 4 is contacted with disjunction backstop axis 3 again, separating brake as shown in Figure 4 is complete at this time
At snap-gauge 5 resets under the action of tension spring.
One kind as 5 confined planes of snap-gauge is preferable to provide mode, the limit that the snap-gauge 5 is contacted with disjunction backstop axis 3
Face is set as planar structure, and this set structure is deviate from from disjunction backstop axis 3 after cantilever 4 bounces with conducive to snap-gauge 5.
Fixation is installed by way of welding or riveting between the first mounting portion 41 and mechanism main shaft 2 of the cantilever 4.
It is real in order to reduce frictional force when snap-gauge 5 is rotated around snap-gauge shaft 6 as a kind of preferred mounting means of snap-gauge 5
Existing service-strong purpose, 5 rear end of snap-gauge is rotatably installed in snap-gauge shaft 6 by bearing.
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 disruptor clamp plate type bounce-proof mechanism, including breaker body (1), and be arranged on breaker body (1)
Mechanism main shaft (2) and disjunction backstop axis (3), it is characterised in that: be additionally provided on the breaker body (1) cantilever (4), card
Plate (5), snap-gauge shaft (6) and tension spring, be provided on the cantilever (4) the first mounting portion (41), the second mounting portion (42) and
Limiting section (43) is also provided with limit hole (44) between second mounting portion (42) and limiting section (43), the cantilever (4)
First mounting portion (41) is fixedly mounted on mechanism main shaft (2), and the snap-gauge shaft (6) is fixedly mounted on the second of cantilever (4)
On mounting portion (42), the rear end thereof of the snap-gauge (5) is mounted on snap-gauge shaft (6), and the front end fixation of the snap-gauge (5) is set
It is equipped with limit shaft (51), the limit shaft (51) is placed in limit hole (44), and the both ends of the tension spring are respectively acting on cantilever (4)
On snap-gauge (5), the separating brake backstop axis (3) limits the extreme rotational position of cantilever (4) limiting section (43).
2. disruptor clamp plate type bounce-proof mechanism according to claim 1, it is characterised in that: the snap-gauge (5) and disjunction
The confined planes of backstop axis (3) contact are set as planar structure.
3. disruptor clamp plate type bounce-proof mechanism according to claim 1, it is characterised in that: the first of the cantilever (4)
Fixation is installed by way of welding or riveting between mounting portion (41) and mechanism main shaft (2).
4. disruptor clamp plate type bounce-proof mechanism according to claim 1, it is characterised in that: the snap-gauge (5) passes through axis
It holds and is rotatably installed on snap-gauge shaft (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710944178.5A CN109659205A (en) | 2017-10-12 | 2017-10-12 | A kind of disruptor clamp plate type bounce-proof mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710944178.5A CN109659205A (en) | 2017-10-12 | 2017-10-12 | A kind of disruptor clamp plate type bounce-proof mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109659205A true CN109659205A (en) | 2019-04-19 |
Family
ID=66109142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710944178.5A Pending CN109659205A (en) | 2017-10-12 | 2017-10-12 | A kind of disruptor clamp plate type bounce-proof mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109659205A (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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5743385A (en) * | 1994-04-20 | 1998-04-28 | Siemens Aktiengesellschaft | Drive device with a locking device to prevent switch shaft rebound |
| CN201985050U (en) * | 2011-01-19 | 2011-09-21 | 西安交通大学 | Bounce-proof device of circuit breaker |
| CN202058671U (en) * | 2011-05-27 | 2011-11-30 | 德力西电气（宁波）有限公司 | Spring-back resistant device for breaker |
| CN203277255U (en) * | 2013-05-22 | 2013-11-06 | 上海良信电器股份有限公司 | Bouncing-prevention mechanism for breaker |
| 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 |
| 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 |
-
2017
- 2017-10-12 CN CN201710944178.5A patent/CN109659205A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5743385A (en) * | 1994-04-20 | 1998-04-28 | Siemens Aktiengesellschaft | Drive device with a locking device to prevent switch shaft rebound |
| CN201985050U (en) * | 2011-01-19 | 2011-09-21 | 西安交通大学 | Bounce-proof device of circuit breaker |
| CN202058671U (en) * | 2011-05-27 | 2011-11-30 | 德力西电气（宁波）有限公司 | Spring-back resistant device for breaker |
| CN203277255U (en) * | 2013-05-22 | 2013-11-06 | 上海良信电器股份有限公司 | Bouncing-prevention mechanism for breaker |
| 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 |
| 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 |
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 |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190419 |
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| WD01 | Invention patent application deemed withdrawn after publication |