CN105405694B - The interlock of breaker and disconnecting switch - Google Patents
The interlock of breaker and disconnecting switch Download PDFInfo
- Publication number
- CN105405694B CN105405694B CN201510877077.1A CN201510877077A CN105405694B CN 105405694 B CN105405694 B CN 105405694B CN 201510877077 A CN201510877077 A CN 201510877077A CN 105405694 B CN105405694 B CN 105405694B
- Authority
- CN
- China
- Prior art keywords
- interlock
- breaker
- driving member
- interlock plate
- idler wheel
- 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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- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000013011 mating Effects 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
Abstract
The invention discloses the interlocks of a kind of breaker and disconnecting switch, the interlock includes input connecting lever, connecting rod, interlock plate and the driving member being connect with the transmission shaft driven of disconnecting switch, interlock plate includes articulated section for being hinged on corresponding cabinet and for the limiting section to driving member rotary spacing, input the pivot center of connecting lever, the pivot center of driving member and the hinge axes of interlock plate are mutually parallel, combined floodgate limited block is provided on rotating member, separating brake limited block, it is in "on" position in breaker, the limiting section of interlock plate coordinates with the limit of combined floodgate limited block, it is in gate-dividing state in breaker, interlock plate rotates counterclockwise and relieves the rotary spacing to driving member.Interlock can be achieved with Interlock Function, reliability is high there is no by spring.The active force generated when limiting cooperation between interlock plate and rotating member can act on the articulated shaft of interlock plate so that the connecting rod stress being sequentially connected with interlock plate is small, is had little effect to breaker.
Description
Technical field
The present invention relates to medium voltage switching technology fields, and in particular to a kind of interlock of breaker and disconnecting switch.
Background technology
On medium voltage switchgear equipment, need to control the divide-shut brake sequence of breaker and disconnecting switch well, to keep away
Exempt from improperly to operate and causes dangerous and damage.At breaker in closing position, do not allow to disconnecting switch carry out separating brake,
Closing operation, while the state of disconnecting switch does not influence freely operating for breaker.Hot line job in order to prevent, in breaker master
Increase interlock between axis and the operation of cabinet door hand, with support personnel and the safety of equipment.
Chinese patent CN 204740968U（Authorized announcement date is 2015.11.04）Disclose a kind of breaker of switch cabinet with
The interlocking mechanism of disconnecting switch, the interlocking mechanism include fanning strip I, fanning strip II and blocking lever, and fanning strip I is fixed on breaker
On main shaft, the tip location of the plate face of fanning strip II is hinged on the left end of cabinet strut.The upper end of blocking lever is hinged on fanning strip I
Plate face on the position of arc-shaped side.The right end of resetting spring is fixed on side cabinet, and the left end level pressure of resetting spring exists
On the edge of II lower part bevel edge of fanning strip.The left end of cabinet bar passes through resetting spring inner space and is fixed on resetting spring
Left end.When breaker is in "on" position, fanning strip II makes resetting spring compress, and the right end of cabinet bar can block hand behaviour's axis
Pin makes it that can not extract, and then the operation handle on hand behaviour can not rotate, and cannot achieve the conjunction point of disconnecting switch；When
When breaker open operation, breaker main shaft drives fanning strip I to turn an angle, and then the mobile drive fan of blocking lever
Shape plate II rotates, and resetting spring is made to uphold to the left, and then cabinet bar is driven to move to left, and hand behaviour's pivot pin loses the blocking of cabinet bar
It can extract, can realize the conjunction point of disconnecting switch by the rotation drive isolated operation bar movement of operation handle at this time.This
Kind interlocking gear can play chain effect to a certain extent, but when carrying out isolated operation, need reset therein
Spring works.And resetting spring is elastic component, in use for some time, elasticity changes, it is likely that causes to expire
Sufficient requirement, eventually leading to the reliability of the interlocking gear reduces.
Invention content
The object of the present invention is to provide a kind of interlocks of the breaker that reliability is high and disconnecting switch, to realize disconnected
Disconnecting switch cannot be operated when the device "on" position of road, and the state of disconnecting switch does not influence the divide-shut brake of breaker.
In order to achieve the goal above, the technical solution of breaker of the present invention and the interlock of disconnecting switch is as follows：Open circuit
Device and the interlock of disconnecting switch include four-bar mechanism and the driving member that is connect for the transmission shaft driven with disconnecting switch,
The four-bar mechanism includes input connecting lever, connecting rod and interlock plate, and one end of connecting rod is connect with connecting lever is inputted, the other end with it is described
Interlock plate connects, and the input connecting lever has the power intake for being sequentially connected with output shaft of circuit breaker, the interlock plate
It include articulated section for being hinged on corresponding cabinet and for the limiting section to driving member rotary spacing, the input connecting lever
Pivot center, the pivot center of driving member and the hinge axes of interlock plate and the cabinet extend along the longitudinal direction and mutually
It is parallel, it is arranged at intervals with combined floodgate limited block, separating brake limited block in the circumferential direction for rotating around it axis on the driving member, disconnected
Road device is in "on" position, and the limiting section of interlock plate is with combined floodgate limited block limit cooperation to stop that driving member rotates counterclockwise
Or gate-dividing state, interlock plate inverse time are in breaker with the limit cooperation of separating brake limited block to stop that driving member is rotated clockwise
Needle rotates and relieves the rotary spacing to driving member.
The interlock plate is fanning strip, and the interlock plate further includes interconnecting piece, and the other end and the interconnecting piece of the connecting rod are cut with scissors
It connects in succession, the limiting section is located at the both sides of the articulated section with interconnecting piece, and the circular arc portion of the fanning strip forms institute
There is circular arc to limit mating surface for the limiting section stated, the limiting section.
The combined floodgate limited block is combined floodgate idler wheel, and "on" position be in breaker, the peripheral surface of the combined floodgate idler wheel and
The circular arc limit mating surface of the limiting section is tangent.
The separating brake limited block is separating brake idler wheel, and "on" position be in breaker, the peripheral surface of the separating brake idler wheel and
The circular arc limit mating surface of the limiting section is tangent.
The separating brake idler wheel, combined floodgate idler wheel are nested on the end face of driving member, the separating brake idler wheel, combined floodgate idler wheel it is outer
End face protrudes from the end face of the driving member.
The driving member is formed by the gear in corresponding disconnecting switch, and the separating brake idler wheel, combined floodgate idler wheel are arranged at
On the gear face of the gear.
The gear is partial gear.
The interlock plate is in the shape of the letter V.
Beneficial effects of the present invention：The interlock of breaker of the present invention and disconnecting switch is in combined floodgate shape in breaker
State, no matter disconnecting switch is for separating brake or closing position, and the limiting section of interlock plate can be with corresponding separating brake limited block or conjunction
Lock limited block limit cooperation so that disconnecting switch cannot be operated.When breaker is in gate-dividing state, interlock plate is released to passing
The limit of moving part, disconnecting switch could act, and what state is disconnecting switch be in not and influence the divide-shut brake action of breaker.Connection
Locking device can be achieved with Interlock Function, reliability is relatively high there is no by spring.Limit is matched between interlock plate and driving member
The active force generated when conjunction can act on the articulated shaft of interlock plate so that the connecting rod stress being sequentially connected with interlock plate is small, right
Breaker has little effect, ensuring smooth transmission.
Description of the drawings
Fig. 1 is the structural schematic diagram of breaker of the present invention and the interlock of disconnecting switch（State one）；
Fig. 2 is the structural schematic diagram of breaker of the present invention and the interlock of disconnecting switch（State two）；
Fig. 3 is the structural schematic diagram of breaker of the present invention and the interlock of disconnecting switch（State three）；
Fig. 4 is the structural schematic diagram of breaker of the present invention and the interlock of disconnecting switch（State four）.
Specific implementation mode
The embodiment of breaker of the present invention and the interlock of disconnecting switch：As shown in Figs 1-4, breaker and disconnecting switch
Interlock include four-bar mechanism and the driving member that is connect for the transmission shaft driven with disconnecting switch, four-bar mechanism packet
Input connecting lever 2, connecting rod 3 and interlock plate are included, one end of connecting rod 3 is connect with input connecting lever 2, and the other end is connect with interlock plate 5, input
Connecting lever 2 has the power intake for being sequentially connected with output shaft of circuit breaker 1, and interlock plate includes for being hinged on corresponding cabinet
Articulated section 51 on body and for the limiting section 52 to driving member rotary spacing, interlock plate 5 is hinged on the cabinet by axis pin 4.
It inputs the pivot center of connecting lever 2, the pivot center of driving member 7 and interlock plate 5 and the hinge axes of cabinet is prolonged along the longitudinal direction
It stretches and is mutually parallel, combined floodgate limited block, separating brake limit are arranged at intervals in the circumferential direction for rotating around it axis on driving member 7
Block is in "on" position in breaker, and the limiting section of interlock plate is with combined floodgate limited block limit cooperation to stop that driving member is inverse
Hour hands rotate or with the limit cooperation of separating brake limited block to stop that driving member rotates clockwise, and are in gate-dividing state in breaker, join
Jam plate rotates counterclockwise and relieves the rotary spacing to driving member.
Interlock plate 5 is the fanning strip being in the shape of the letter V, and interlock plate 5 further includes interconnecting piece, and the other end and the interconnecting piece of connecting rod 3 are cut with scissors
It connects in succession, limiting section 52 is located at the both sides of articulated section with interconnecting piece, and the circular arc portion of fanning strip forms limiting section 52, limit
There is circular arc to limit mating surface in portion 52.Combined floodgate limited block is combined floodgate idler wheel 61, and "on" position, combined floodgate idler wheel 61 are in breaker
Peripheral surface and limiting section circular arc limit mating surface it is tangent.Separating brake limited block is separating brake idler wheel 62, is in and closes a floodgate in breaker
State, the peripheral surface of separating brake idler wheel 62 and the circular arc limit mating surface of limiting section are tangent.Driving member 7 is by corresponding disconnecting switch
Gear formed, gear is partial gear.Separating brake idler wheel 62, combined floodgate idler wheel 61 are arranged on the gear face of gear.Tooth
Wheel is provided with slot or hole on end face, and separating brake idler wheel 62, combined floodgate idler wheel 61 are nested on the end face of driving member, separating brake idler wheel 62,
The outer end face of combined floodgate idler wheel 61 protrudes from the end face of driving member.
The complete four kinds of states of interlock of the present invention are respectively（1）Breaker closing, two station disconnecting switch separating brake shapes
State；（2）Breaker closing, two station disconnecting switch "on" positions；（3）Breaker open operation, two station disconnecting switch gate-dividing states；
（4）Breaker open operation, two station disconnecting switch "on" positions.Each state is illustrated respectively below.
As shown in Figure 1, breaker is in "on" position, interlock plate 5 and combined floodgate idler wheel 61 are tangent, if two station machines of operation
Structure separating brake is to when closing a floodgate（It is counterclockwise rotated in figure）, combined floodgate idler wheel 61 withstands interlock plate 5, and active force is straight by interlock plate 5
It connects and acts on axis pin 4, other parts almost do not stress, and protective breaker is unaffected, it is ensured that two work when breaker closing
Position disconnecting switch cannot be operated.
As shown in Fig. 2, breaker is in "on" position, interlock plate 5 and separating brake idler wheel 62 are tangent, if two station machines of operation
When structure closes a floodgate to separating brake（It is rotated clockwise in figure）, separating brake idler wheel 62 withstands interlock plate 5, and active force is straight by interlock plate 5
It connects and acts on axis pin 4, other parts almost do not stress, and protective breaker is unaffected, it is ensured that two work when breaker closing
Position cannot be operated.
As shown in figure 3, output shaft of circuit breaker 1 rotates clockwise when breaker is from "on" position Fig. 1 to gate-dividing state Fig. 3,
Drive input connecting lever 2, connecting rod 3, interlock plate pushed to rotate counterclockwise, interlock plate 5 disengage combined floodgate idler wheel 61 to combined floodgate idler wheel 61,
The position that separating brake idler wheel 62 is not interfered, at this moment two station disconnecting switchs can close a floodgate, realize only have breaker in gate-dividing state
Under, two station disconnecting switchs could be operated.
As shown in figure 4, output shaft of circuit breaker 1 rotates clockwise when breaker is from "on" position Fig. 2 to gate-dividing state Fig. 4,
Drive input connecting lever 2, connecting rod 3, interlock plate pushed to rotate counterclockwise, interlock plate 5 disengage separating brake idler wheel 62 to combined floodgate idler wheel 61,
The position that separating brake idler wheel 62 is not interfered, at this moment two station disconnecting switchs can be with separating brake, and realization only has breaker in gate-dividing state
Under, two station disconnecting switchs could be operated.
In the present embodiment, disconnecting switch is primarily directed to two station disconnecting switchs.
In other embodiments, interlock plate can not also use fanning strip, the shape of the limiting section of interlock plate to can also be triangle
Shape and it is non-radiused, the limiting section of triangle is equivalent to tool there are two limiting mating surface, and one is used for and combined floodgate idler wheel
Peripheral surface limit cooperation, another, which is used to limit with the peripheral surface of separating brake idler wheel, coordinates.
In other embodiments, driving member is also not necessarily limited to above-mentioned gear, a gear also can separately be arranged as driving member,
As long as disclosure satisfy that the transmission shaft driven of driving member and disconnecting switch connects, disconnecting switch can drive the transmission in action
Part rotates.Driving member also may not be partial gear, and partial gear why is arranged, and to be itself can not rotate 360
Degree, driving member can also be complete gear or disk or not rounded disk-like structure.
In other embodiments, separating brake, combined floodgate idler wheel are also solderable is fixed on driving member.Separating brake idler wheel, combined floodgate idler wheel
Also it can be replaced with axis pin, or use limiting plate, be not limited to cylindrical.
Claims (8)
1. the interlock of breaker and two station disconnecting switchs, it is characterised in that：Including four-bar mechanism and it is used for and two works
The driving member of the transmission shaft driven connection of position disconnecting switch, the four-bar mechanism include input connecting lever, connecting rod and interlock plate, are connected
One end of bar is connect with input connecting lever, and the other end is connect with the interlock plate, and the input connecting lever has for defeated with breaker
The power intake that shaft is sequentially connected, the interlock plate include articulated section for being hinged on corresponding cabinet and for pair
The limiting section of driving member rotary spacing, the input pivot center of connecting lever, the pivot center of driving member and interlock plate with it is described
The hinge axes of cabinet extend and are mutually parallel along the longitudinal direction, in the circumferential direction for rotating around it axis on the driving member
It is arranged at intervals with combined floodgate limited block, separating brake limited block, "on" position, the limiting section of interlock plate and the combined floodgate are in breaker
Limited block limit cooperation is rotated counterclockwise or with the limit cooperation of separating brake limited block with stopping driving member to stop that driving member is clockwise
Rotation, is in gate-dividing state, interlock plate rotates counterclockwise and relieves the rotary spacing to driving member in breaker.
2. the interlock of breaker according to claim 1 and two station disconnecting switchs, it is characterised in that：The interlocking
Plate is fanning strip, and the interlock plate further includes interconnecting piece, and the other end and the interconnecting piece of the connecting rod are articulated and connected, the limiting section
The both sides of the articulated section are located at interconnecting piece, the circular arc portion of the fanning strip forms the limiting section, the limit
There is circular arc to limit mating surface in position portion.
3. the interlock of breaker according to claim 2 and two station disconnecting switchs, it is characterised in that：The combined floodgate
Limited block is combined floodgate idler wheel, and "on" position, the circular arc of the peripheral surface and the limiting section of the combined floodgate idler wheel are in breaker
It is tangent to limit mating surface.
4. the interlock of breaker according to claim 3 and two station disconnecting switchs, it is characterised in that：The separating brake
Limited block is separating brake idler wheel, and "on" position, the circular arc of the peripheral surface and the limiting section of the separating brake idler wheel are in breaker
It is tangent to limit mating surface.
5. the interlock of breaker according to claim 4 and two station disconnecting switchs, it is characterised in that：The separating brake
Idler wheel, combined floodgate idler wheel are nested on the end face of driving member, the separating brake idler wheel, combined floodgate idler wheel outer end face protrude from it is described
The end face of driving member.
6. the interlock of breaker according to claim 5 and two station disconnecting switchs, it is characterised in that：The transmission
Part is formed by the gear in corresponding two station disconnecting switch, and the separating brake idler wheel, combined floodgate idler wheel are arranged at the gear
On gear face.
7. the interlock of breaker according to claim 6 and two station disconnecting switchs, it is characterised in that：The gear
For partial gear.
8. the interlock of the breaker and two station disconnecting switchs according to claim 1 to 7 any one, feature exist
In：The interlock plate is in the shape of the letter V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877077.1A CN105405694B (en) | 2015-12-03 | 2015-12-03 | The interlock of breaker and disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877077.1A CN105405694B (en) | 2015-12-03 | 2015-12-03 | The interlock of breaker and disconnecting switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105405694A CN105405694A (en) | 2016-03-16 |
| CN105405694B true CN105405694B (en) | 2018-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510877077.1A Active CN105405694B (en) | 2015-12-03 | 2015-12-03 | The interlock of breaker and disconnecting switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN105405694B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340821B (en) * | 2016-10-20 | 2018-02-27 | 莱福士电力电子设备（深圳）有限公司 | Interlocking mechanism of switch cabinet and switch cubicle |
| CN106783291A (en) * | 2017-01-03 | 2017-05-31 | 镇江华源晋昌电器有限公司 | Breaker and isolator operation interlocking mechanism |
| CN107527759B (en) * | 2017-08-23 | 2019-01-01 | 许继集团有限公司 | Three-station-release unit and its interlock |
| CN110896006B (en) * | 2019-11-18 | 2021-09-14 | 许继集团有限公司 | Electrical interlocking device of circuit breaker and isolating switch and pole-mounted switch |
| CN112967898B (en) * | 2021-04-09 | 2022-04-22 | 安徽新高电气有限公司 | Permanent magnet breaker and isolator interlocking mechanism |
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| CN201829382U (en) * | 2010-10-21 | 2011-05-11 | 常州市明及电气技术开发有限公司 | Interlocking mechanism of isolation switch and circuit breaker |
| CN202373489U (en) * | 2011-12-19 | 2012-08-08 | 扬州新概念电气有限公司 | Interlocking mechanism between high-voltage circuitbreaker and integrated isolating switch |
| CN203966879U (en) * | 2014-07-22 | 2014-11-26 | 河南森源电气股份有限公司 | A kind of secondary aviation socket interlock of high-tension switch cabinet |
| CN204740968U (en) * | 2015-06-08 | 2015-11-04 | 山东泰开真空开关有限公司 | Switchgear circuit breaker and isolator's interlocking device |
| CN205303238U (en) * | 2015-12-03 | 2016-06-08 | 平高集团有限公司 | Circuit breaker and isolator's interlock |
-
2015
- 2015-12-03 CN CN201510877077.1A patent/CN105405694B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201829382U (en) * | 2010-10-21 | 2011-05-11 | 常州市明及电气技术开发有限公司 | Interlocking mechanism of isolation switch and circuit breaker |
| CN202373489U (en) * | 2011-12-19 | 2012-08-08 | 扬州新概念电气有限公司 | Interlocking mechanism between high-voltage circuitbreaker and integrated isolating switch |
| CN203966879U (en) * | 2014-07-22 | 2014-11-26 | 河南森源电气股份有限公司 | A kind of secondary aviation socket interlock of high-tension switch cabinet |
| CN204740968U (en) * | 2015-06-08 | 2015-11-04 | 山东泰开真空开关有限公司 | Switchgear circuit breaker and isolator's interlocking device |
| CN205303238U (en) * | 2015-12-03 | 2016-06-08 | 平高集团有限公司 | Circuit breaker and isolator's interlock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105405694A (en) | 2016-03-16 |
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