CN103646813B - A kind of isolation circuit breakers transmission mechanism and method - Google Patents
A kind of isolation circuit breakers transmission mechanism and method Download PDFInfo
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- CN103646813B CN103646813B CN201310646400.5A CN201310646400A CN103646813B CN 103646813 B CN103646813 B CN 103646813B CN 201310646400 A CN201310646400 A CN 201310646400A CN 103646813 B CN103646813 B CN 103646813B
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- connecting rod
- circuit breakers
- isolation circuit
- connecting lever
- pull bar
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Abstract
The present invention discloses a kind of isolation circuit breakers transmission mechanism and method, comprise driving second and touch cephalomotor pull bar, and drive first connecting rod driving mechanism and the second connecting rod driving mechanism of pull bar motion, wherein, described first connecting rod driving mechanism is driven by motor, second connecting rod driving mechanism is driven by operating mechanism, described first connecting rod driving mechanism at least includes and rotates the first fixing connecting lever with motor, described second connecting rod mechanism at least includes and rotates the second fixing connecting lever with operating mechanism, described first connecting lever and the second connecting lever are separately installed with fixture and the mechanical locking device of answering connecting lever for Stationary liquid.The present invention is connected with pull bar on the second contact, pull bar move through first connecting rod driving mechanism and second connecting rod driving mechanisms control, moved up and down by first connecting rod driving mechanism and second connecting rod driving mechanisms control pull bar, realize normally through-flow, separating brake, combined floodgate and the isolation of circuit breaker.
Description
[technical field]
The present invention relates to high-voltage switch gear field, particularly a kind of isolation circuit breakers transmission mechanism and method.
[background technology]
According to the definition of the standards such as IEC62271-108 and GB/T27747-2011, after isolation circuit breakers dynamic/static contact separates completely, fracture between dynamic/static contact will meet isolation switch insulation level requirement, after this means that isolation circuit breakers dynamic/static contact completely separately, distance between dynamic/static contact is larger than traditional circuit breaker, this not only makes, and external insulation coordinates, break performance changes all to some extent, and proposes new requirement to transmission.
[summary of the invention]
The invention provides a kind of isolation circuit breakers transmission mechanism and method, to realize normally through-flow, separating brake and the closing function of isolation circuit breakers, the isolation features of isolation circuit breakers can also be realized.
For reaching above object, the present invention takes following technical scheme to be achieved:
A kind of for isolation circuit breakers transmission mechanism, comprise driving second and touch cephalomotor pull bar, and drive first connecting rod driving mechanism and the second connecting rod driving mechanism of pull bar motion, wherein, described first connecting rod driving mechanism is driven by motor, second connecting rod driving mechanism is driven by operating mechanism, described first connecting rod driving mechanism at least includes and rotates the first fixing connecting lever with motor, described second connecting rod mechanism at least includes and rotates the second fixing connecting lever with operating mechanism, described first connecting lever and the second connecting lever are separately installed with fixture and the mechanical locking device of answering connecting lever for Stationary liquid, fix the first connecting lever by fixture or fix the second connecting lever by mechanical locking device, thus realize circuit breaker and opening a sluice gate position, closing position, move between isolated location.
As the preferred embodiments of the present invention, described pull bar is connected with first connecting rod driving mechanism and second connecting rod driving mechanism respectively by first connecting rod, and described pull bar and first connecting rod form the first revolute.
As the preferred embodiments of the present invention, described first connecting rod driving mechanism includes second connecting rod further, and described first connecting rod and second connecting rod form the second revolute, and described second connecting rod and the first connecting lever form the 3rd revolute.
As the preferred embodiments of the present invention, described second connecting rod driving mechanism includes third connecting rod further, and described first connecting rod and third connecting rod form the 4th revolute, and described third connecting rod and the second connecting lever form the 5th revolute.
As the preferred embodiments of the present invention, the acute angle formed between described pull bar and first connecting rod is less than 15 ° all the time.
As the preferred embodiments of the present invention, described first connecting rod and third connecting rod acutangulate and are less than 35 ° all the time.
A kind of method utilizing the transmission mechanism control isolation circuit breakers of above-mentioned isolation circuit breakers, when isolation circuit breakers perform cut-off or feed motion time, fixture clamps the first connecting lever makes the first connecting lever maintain static, and drives the second contact to move between combined floodgate and open position by operating mechanism; When circuit breaker performs isolation action, operating mechanism, by mechanical locking device locking, makes the second connecting lever fix, and now, release clip, drives the second contact to move to isolated location from open position by motor, realize the isolation features of circuit breaker.
During breaker open operation, when fixture clamps the first connecting lever, the second connecting rod hinged with the first connecting lever rotates around pin joint and translation does not occur, operating mechanism drives the second connecting lever to be rotated counterclockwise, and then drive pull bar to move down, until the second contact moves to just point position from closing position, the second connecting lever continues to be rotated counterclockwise, and drives the second contact to move to open position from a firm point position.
Isolation circuit breakers perform isolation action time, first by circuit breaker from separating brake normal open position, then perform isolation action, when performing isolation action, the second connecting lever maintains static, and the third connecting rod hinged with the second connecting lever rotates and translation does not occur, now, release clip, the first connecting lever turns clockwise, and pull bar is moved down, then the second contact is driven to move to isolated location from open position, finally, utilize clamp first connecting lever to make it fixing, circuit breaker is in blocking.
Compared with prior art, the present invention at least has following beneficial effect: the present invention is connected with pull bar on the second contact, pull bar move through first connecting rod driving mechanism and second connecting rod driving mechanisms control, moved up and down by first connecting rod driving mechanism and second connecting rod driving mechanisms control pull bar, realize normally through-flow, separating brake, combined floodgate and the isolation of circuit breaker.
[accompanying drawing explanation]
Fig. 1 is the structural representation that isolation circuit breakers second contact is positioned at "on" position.
Fig. 2 is pull bar and first connecting rod and the angle structural representation between first connecting rod and third connecting rod in Fig. 1.
Fig. 3 is the structural representation that isolation circuit breakers second contact is positioned at just point position.
Fig. 4 is the structural representation that isolation circuit breakers second contact is positioned at open position.
Fig. 5 be isolation circuit breakers second contact be positioned at isolated location and locking time structural representation.
In figure: 1 is arc control device, 2 is the first contact, 3 is closing position, 4 is firm point position, 5 is open position, 6 is isolated location, 7 is the second contact, 8 is gathering sill, 9 is pull bar, 10 is the first revolute, 11 is first connecting rod, 12 is the second revolute, 13 is second connecting rod, 14 is motor, 15 is the first connecting lever, 16 is the 3rd revolute, 17 is the 4th revolute, 18 is third connecting rod, 19 is the 5th revolute, 20 is the second connecting lever, 21 is operating mechanism, 22 is first point of rotation, 23 is second point of rotation, 24 is fixture, 25 is the first angle, 26 is the second angle, 27 is mechanical locking device.
[embodiment]
Below in conjunction with accompanying drawing and instantiation, the present invention is described in further detail.
Refer to shown in Fig. 1, Fig. 3 to Fig. 5, the invention provides a kind of transmission mechanism of isolation circuit breakers, comprise pull bar 9, first connecting rod 11, second connecting rod 13, third connecting rod 18, first connecting lever 15, second connecting lever 20, motor 14, fixture 24, operating mechanism 21, mechanical locking device 27.Wherein first connecting rod 11 and pull bar 9 form the first revolute 10, first connecting rod 11 and second connecting rod 13 form the second revolute 12, second connecting rod 13 and the first connecting lever 15 form the 3rd revolute 16, first connecting rod 11 and third connecting rod 18 form the 4th revolute 17, and third connecting rod 18 and the second connecting lever 20 form the 5th revolute 19; Motor 14 and the first connecting lever 15 are fastenedly connected, and the first connecting lever 15 is rotated around first point of rotation 22; Operating mechanism 21 and the second connecting lever 20 are fastenedly connected, and the second connecting lever 20 is rotated around second point of rotation 23.
Be provided with the first contact 2 and the second contact 7, first contact 2 and the second contact 7 entirety in isolation circuit breakers as in arc extinguishing air chamber 1, described arc extinguishing air chamber 1 is provided with in bottom and slides for pull bar 9 and provide the gathering sill 8 of guiding.First contact 2 maintains static, second contact 7 is under pull bar 9 acts on, move up and down along gathering sill 8, realize normally through-flow, separating brake, combined floodgate and the isolation of circuit breaker, wherein normally through-flow (or combined floodgate) time the second contact 7 be in closing position 3, when separating brake completes, the second contact 7 is in open position 5, and during isolation, the second contact 7 is in isolated location 6.
When isolation circuit breakers perform cut-off or closing function time, motor 14 is not charged, fixture 24 is clamped the first connecting lever 15 and the first connecting lever 15 is maintained static, and drives the second contact 7 to move between closing position 3 and open position 5, realize cut-offfing or closing a floodgate of circuit breaker by operating mechanism 21; When isolation circuit breakers needs to perform isolation features (when such as needing maintenance), operating mechanism 21 is first by mechanical locking device 27 mechanical latching, second connecting lever 20 is fixed, now untie fixture 24, drive the second contact 7 to move to isolated location 6 from open position 5 by motor 14, realize the isolation features of circuit breaker.3 the following detailed description of:
Circuit breaker normal through-flow time, motor 14 is not charged, and fixture 24 clamps the first connecting lever 15 and makes it fixing, operating mechanism 21 inoperation, and the second contact 7 is static is in closing position 3, as shown in Figure 1.
During breaker open operation (the second contact 7 needs to move to open position 5 from closing position 3), motor 14 is not charged, fixture 24 clamps the first connecting lever 15 and makes it fixing, second connecting rod 13 rotates around the 3rd revolute 16 and translation does not occur, operating mechanism 21 drives the second connecting lever 20 to be rotated counterclockwise around second point of rotation 23, and under third connecting rod 18, first connecting rod 11, second connecting rod 13 acting in conjunction, pull bar 9 is moved down along gathering sill 8, then drives the second contact 7 to move to firm point position 4(as shown in Figure 3 from closing position 3); Second connecting lever 20 continues to be rotated counterclockwise around second point of rotation 23, drives the second contact 7 to move to open position 5(as shown in Figure 4 from firm point position 4).
During breaker closing (the second contact 7 needs to move to closing position 3 from open position 5), motor 14 is not charged, fixture 24 clamps the first connecting lever 15 and makes it fixing, now second connecting rod 13 rotates around the 3rd revolute 16 and translation does not occur, operating mechanism 21 drives the second connecting lever 20 to turn clockwise around second point of rotation 23, at third connecting rod 18, first connecting rod 11, under second connecting rod 13 acting in conjunction, pull bar 9 is moved up along gathering sill 8, first the second contact 7 is moved to just point position 4 from open position 5, second connecting lever 20 continues to turn clockwise around second point of rotation 23, second contact 7 moves to closing position 3 from firm point position 4 the most at last.The state of having closed a floodgate be exactly normally through-flow state, as shown in Figure 1.
When isolation circuit breakers needs to perform isolation features (when such as needing maintenance), first by circuit breaker from separating brake normal open position, namely the second contact 7 moves to open position 5 from closing position 3, then adopt mechanical locking device 27 by operating mechanism 21 locking, even if having misoperation like this, operating mechanism 21 also can not be triggered, and such second connecting lever 20 will maintain static, and now third connecting rod 18 will rotate around the 5th revolute 19 and translation not occur; Now untie fixture 24, motor 14 is charged and drive the first connecting lever 15 to turn clockwise around first point of rotation 22, and under second connecting rod 13, first connecting rod 11, third connecting rod 18 acting in conjunction, make pull bar 9 continue to move down along gathering sill 8, then drive the second contact 7 to move to isolated location 6 from open position 5; Finally, fixture 24 clamps the first connecting lever 15 and makes it fixing, and circuit breaker is in blocking, even if now have misoperation, can not change the position of the second contact 7.
When circuit breaker execute after isolation features close a floodgate to normal open position time, first isolation circuit breakers is operated to gate-dividing state from isolation, moves to open position 5 by the second contact 7 from isolated location 6.Now operating mechanism 21 can not be operated by mechanical locking device 27 locking, and the second connecting lever 20 will maintain static, and third connecting rod 18 will rotate around the 5th revolute 19 and translation not occur; Untie fixture 24, motor 14 is charged and drive the first connecting lever 15 to be rotated counterclockwise, and under second connecting rod 13 first connecting rod 11, third connecting rod 18 acting in conjunction, pull bar 9 is moved up along gathering sill 8, then drive the second contact 7 to move to open position 5 from isolated location 6; Then, isolation circuit breakers is operated to "on" position from gate-dividing state, moves to closing position 3 by the second contact 7 from open position 5.Motor 14 is not charged, and fixture 24 clamps the first connecting lever 15 and makes it fixing, and now second connecting rod 13 will rotate around the 3rd revolute 16 and translation not occur; Mechanical locking device 27 is removed, operating mechanism 21 drives the second connecting lever 20 to turn clockwise around second point of rotation 23, under third connecting rod 18, first connecting rod 11, second connecting rod 13 acting in conjunction, pull bar 9 is moved up along gathering sill 8, first the second contact 7 is moved to just point position 4 from open position 5, second connecting lever 20 continues to turn clockwise around second point of rotation 23, and the second contact 7 moves to closing position 3 from firm point position 4 the most at last.
When isolation circuit breakers needs to remove isolation features (such as after maintenance), now operating mechanism 21 is still in blocking, and the second connecting lever 20 is fixed, and third connecting rod 18 will rotate around the 5th revolute 19 and translation not occur; Untie fixture 24, motor 14 is charged and drive the first connecting lever 15 to be rotated counterclockwise, and under second connecting rod 13, first connecting rod 11, third connecting rod 18 acting in conjunction, pull bar 9 is moved up along gathering sill 8, then drive the second contact 7 to move to open position 5 from isolated location 6.
In separating brake, combined floodgate and isolation processes, pull bar 9 and first connecting rod 11 acutangulate 25 and be less than 15 ° all the time, first connecting rod 11 and third connecting rod 18 acutangulate 26 and be less than all the time 35 ° (consulting shown in Fig. 2).
Described motor 14 can rotating, only has after fixture 24 unclamps, and motor 14 could hot line job, and only have after mechanical locking device 27 is removed, operating mechanism 21 could operate; Motor 14 and operating mechanism 21 can not operate simultaneously.
Transmission mechanism of the present invention, not only can realize circuit breaker through-flow, separating brake and closing function normally, and can realize isolation features, compact overall structure.In divide-shut brake and isolation processes, pull bar and first connecting rod acutangulate and are less than 15 ° all the time, and first connecting rod and third connecting rod acutangulate and be less than 35 ° all the time, guarantee that transmission process is steady.In addition, when circuit breaker is in isolation (the second contact is in isolated location), locking can be carried out by transmission mechanism to circuit breaker, even if misoperation also can not change the isolation of circuit breaker, further increase fail safe.
Claims (9)
1. an isolation circuit breakers transmission mechanism, it is characterized in that, comprise the pull bar (9) that driving second contact (7) moves, and drive pull bar (9) the first connecting rod driving mechanism that moves and second connecting rod driving mechanism, wherein, described first connecting rod driving mechanism is driven by motor (14), second connecting rod driving mechanism is driven by operating mechanism (21), described first connecting rod driving mechanism at least includes and rotates fixing the first connecting lever (15) with motor (14), described second connecting rod driving mechanism at least includes and rotates fixing the second connecting lever (20) with operating mechanism, described first connecting lever (15) and the second connecting lever (20) are separately installed with fixture (24) and the mechanical locking device (27) of answering connecting lever for Stationary liquid, fix the first connecting lever by fixture or fix the second connecting lever by mechanical locking device, thus realize isolation circuit breakers and opening a sluice gate position, closing position, move between isolated location.
2. a kind of isolation circuit breakers transmission mechanism according to claim 1, it is characterized in that, described pull bar (9) is connected with first connecting rod driving mechanism and second connecting rod driving mechanism respectively by first connecting rod (11), and described pull bar (9) and first connecting rod (11) form the first revolute (10).
3. a kind of isolation circuit breakers transmission mechanism according to claim 2, it is characterized in that, described first connecting rod driving mechanism includes second connecting rod (13) further, described first connecting rod (11) and second connecting rod (13) form the second revolute (12), and described second connecting rod and the first connecting lever (15) form the 3rd revolute (16).
4. a kind of isolation circuit breakers transmission mechanism according to claim 3, it is characterized in that, described second connecting rod driving mechanism includes third connecting rod (18) further, described first connecting rod (11) and third connecting rod (18) form the 4th revolute (17), and described third connecting rod and the second connecting lever (20) form the 5th revolute (19).
5. a kind of isolation circuit breakers transmission mechanism as claimed in any of claims 2 to 4, is characterized in that, the acute angle formed between described pull bar (9) and first connecting rod (11) is less than 15 ° all the time.
6. a kind of isolation circuit breakers transmission mechanism according to claim 4, is characterized in that, described first connecting rod (11) and third connecting rod (18) acutangulate and be less than 35 ° all the time.
7. one kind utilizes the method for the transmission mechanism control isolation circuit breakers of the isolation circuit breakers described in claim 1, it is characterized in that: when isolation circuit breakers perform cut-off or feed motion time, fixture (24) is clamped the first connecting lever (15) and is made it to maintain static, and drives the second contact to move between combined floodgate and open position by operating mechanism (21); When isolation circuit breakers performs isolation action, operating mechanism (21) is by mechanical locking device (27) locking, second connecting lever (20) is fixed, now, release clip, drive the second contact to move to isolated location from open position by motor (14), realize the isolation features of isolation circuit breakers.
8. the method for the transmission mechanism control isolation circuit breakers of isolation circuit breakers as claimed in claim 7, it is characterized in that: during isolation circuit breakers separating brake, when fixture (24) clamps the first connecting lever (15), the second connecting rod (13) hinged with the first connecting lever (15) rotates around pin joint and translation does not occur, operating mechanism (21) drives the second connecting lever (20) to be rotated counterclockwise, and then drive pull bar to move down, until the second contact moves to just point position from closing position, second connecting lever (20) continues to be rotated counterclockwise, the second contact is driven to move to open position from a firm point position.
9. the method for the transmission mechanism control isolation circuit breakers of isolation circuit breakers as claimed in claim 7, it is characterized in that: when isolation circuit breakers performs isolation action, first by isolation circuit breakers from separating brake normal open position, then isolation action is performed, when performing isolation action, second connecting lever maintains static, the third connecting rod (18) hinged with the second connecting lever rotates and translation does not occur, now, release clip, first connecting lever turns clockwise, pull bar is moved down, then the second contact is driven to move to isolated location from open position, finally, clamp first connecting lever is utilized to make it fixing, isolation circuit breakers is in blocking.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310646400.5A CN103646813B (en) | 2013-12-02 | 2013-12-02 | A kind of isolation circuit breakers transmission mechanism and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310646400.5A CN103646813B (en) | 2013-12-02 | 2013-12-02 | A kind of isolation circuit breakers transmission mechanism and method |
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| CN103646813A CN103646813A (en) | 2014-03-19 |
| CN103646813B true CN103646813B (en) | 2016-03-02 |
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| CN201310646400.5A Active CN103646813B (en) | 2013-12-02 | 2013-12-02 | A kind of isolation circuit breakers transmission mechanism and method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106504915A (en) * | 2016-10-31 | 2017-03-15 | 平高集团有限公司 | A kind of isolated chopper |
| CN108007683A (en) * | 2017-12-27 | 2018-05-08 | 福建中能电气有限公司 | Vacuum circuit breaker detecting tool |
| CN108022790B (en) * | 2018-01-08 | 2024-07-12 | 许涛 | Isolation switch |
| CN108269712A (en) * | 2018-01-08 | 2018-07-10 | 许继集团有限公司 | A kind of on-pole switch and its built-in isolating device |
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| CN2556769Y (en) * | 2002-07-11 | 2003-06-18 | 长沙电器开关有限公司 | Driving device of electric operating mechanism for isolator |
| CN201725699U (en) * | 2010-06-07 | 2011-01-26 | 福建东方电器有限公司 | Novel circuit breaker transmission linkage mechanism |
| CN202796701U (en) * | 2012-09-26 | 2013-03-13 | 中电装备恩翼帕瓦（山东）高压开关有限公司 | Connecting rod transmission device of gas insulated switchgear (GIS) disconnecting switch breaking-closing action |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4435807B2 (en) * | 2007-05-25 | 2010-03-24 | 三菱電機株式会社 | Contact pressure adjustment mechanism of switch |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2556769Y (en) * | 2002-07-11 | 2003-06-18 | 长沙电器开关有限公司 | Driving device of electric operating mechanism for isolator |
| CN201725699U (en) * | 2010-06-07 | 2011-01-26 | 福建东方电器有限公司 | Novel circuit breaker transmission linkage mechanism |
| CN202796701U (en) * | 2012-09-26 | 2013-03-13 | 中电装备恩翼帕瓦（山东）高压开关有限公司 | Connecting rod transmission device of gas insulated switchgear (GIS) disconnecting switch breaking-closing action |
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| CN103646813A (en) | 2014-03-19 |
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