CN108364819A - A kind of isolator operation device and the disconnecting switch with it - Google Patents
A kind of isolator operation device and the disconnecting switch with it Download PDFInfo
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- CN108364819A CN108364819A CN201810387187.3A CN201810387187A CN108364819A CN 108364819 A CN108364819 A CN 108364819A CN 201810387187 A CN201810387187 A CN 201810387187A CN 108364819 A CN108364819 A CN 108364819A
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- ground connection
- transmission shaft
- actuating arm
- elastic component
- actuator
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- 230000005540 biological transmission Effects 0.000 claims abstract description 135
- 230000007246 mechanism Effects 0.000 claims abstract description 111
- 238000004146 energy storage Methods 0.000 claims abstract description 40
- 238000002955 isolation Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 23
- 230000009471 action Effects 0.000 claims description 12
- 230000033001 locomotion Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 7
- 230000009351 contact transmission Effects 0.000 claims description 6
- 230000008450 motivation Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000010891 electric arc Methods 0.000 description 7
- 238000005381 potential energy Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 208000028659 discharge Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/08—Interlocking mechanisms for interlocking two or more parts of the mechanism for operating contacts
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of isolator operation device and with its disconnecting switch, including shell and ground connection operating mechanism, it includes ground connection operating shaft, ground connection transmission shaft, transmission mechanism, the first elastic component, actuator and locking mechanism to be grounded operating mechanism, lock drive arm after the completion of the locking mechanism ground connection separating brake, the actuator rotate forward to setting position the lock fit for unlocking the locking mechanism and the actuating arm.When being grounded operating mechanism separating brake, lock fit is formed by actuating arm and locking mechanism, so that transmission mechanism is kept open position locking, plays the role of separating brake and limit in place；And when being grounded operating mechanism and closing a floodgate, actuating arm be locked in combined floodgate first half term it is motionless, the first elastic component energy storage keep simultaneously starting to release after actuating arm and locking mechanism unlock can, realize rapid closing.Limit when the ground connection existing separating brake of operating mechanism of the present invention keeps function, and energy storage holding when having the function of to close a floodgate.
Description
Technical field
The present invention relates to middle/high-voltage electrical appliance technical fields, and in particular to a kind of isolator operation device, the present invention is simultaneously
It is related to a kind of disconnecting switch.
Background technology
On-load switch in ring main unit usually requires that three stations, that is, cuts off load, isolation circuit, feasible by ground connection.It is existing
It is then realized frequently with tri-station isolating switch in technology, tri-station isolating switch incorporates both disconnecting switch and earthing switch
Function, and mechanical latching may be implemented in plug-in strip using one, prevent major loop electrification from closing earthing knife-switch, the danger for avoiding maloperation from bringing
Evil.
The major part of tri-station isolating switch is three station operating mechanisms, and existing three station operating mechanism includes isolation
Operating shaft, ground connection operating shaft and the output shaft for connecting isolated operation axis and ground connection operating shaft by link mechanism respectively, output
Axis is provided at both ends with output toggle arm, for connecting isolation switch shaft or ground terminal.Wherein, isolated operation axis and ground connection operating shaft
Energy-stored spring is configured, in idle running isolated operation axis manually or operating shaft can be grounded to 1 boundary's point of energy-stored spring release potential energy
When, drive isolated operation axis or ground connection operating shaft to rotate using energy-stored spring quick release potential energy, and driven by link mechanism
Output toggle arm rotation on output shaft greatly shortens on/off switch behaviour in three combined floodgate, separating brake and ground connection operating positions to reach
Make, the time of the combined floodgate in ground connection operating process, separating brake or ground terminal divide-shut brake.
In order to ensure the safety of contact of earth, it can quickly extinguish electric arc, ground terminal generally use vacuum interrupter.Tool
Body, it is grounded the energy-storage crank arm that connection energy-stored spring is provided in operating shaft, link mechanism connection ground connection operating shaft and output shaft
To transmit movement and power, the dynamic guide rod connection of output toggle arm and vacuum interrupter, operating process is：Rotation ground connection operation manually
Axis, drive energy-storage crank arm rotation make energy-stored spring complete energy storage, excessively in, release energy storage, i.e. energy-stored spring can just hold at place in excessively
Beginning releases energy, drives ground connection operating shaft quick rotation by energy-storage crank arm in exoergic process, and drive and export by bindiny mechanism
Shaft rotation is dynamic, is driven when output toggle arm is rotated with output shaft and moves guide rod action, to keep the dynamic and static contact action of vacuum interrupter real
Existing separating brake or combined floodgate, realize the ground connection divide-shut brake function of disconnecting switch.
But it is had the following problems in the above-mentioned prior art：
First, during being grounded separating brake, since energy-stored spring potential energy is larger, link mechanism is with ground connection operating shaft in energy storage
Open position is moved under the action of spring will produce mechanical impact, which can then cause grounding contact separating brake to rebound,
Restore voltage when existing between the dynamic and static contact of vacuum interrupter, such separating brake rebound easily causes electric arc resume combustion phenomenon and burns
Contact is burnt, so as to cause security risk and shortens contact service life；
Secondly, link mechanism can not accurately stop at setting position under the action of energy-stored spring, it will usually move past
Setting position；And during contact of earth, the energy storage time of energy-stored spring is shorter and can more early discharge energy storage, and energy storage effect is not
It is good, influence operating mechanism closing speed so that closing time is elongated, and the moved end positioned at vacuum interrupter so can then be caused to close
Arc discharge just has occurred during lock, it is serious to the damage of contact, so as to cause security risk and shorten contact and vacuum extinction
The service life of room.
Invention content
Therefore, for the deficiencies in the prior art, the purpose of the present invention is to provide one kind in ground connection separating brake process
In so that link mechanism and output shaft is kept open position locking, to prevent mechanical impact from rebounding to avoid grounding contact separating brake,
And during contact of earth energy-stored spring energy storage can keep, and energy storage effect and closing speed are improved, it is true to avoid
Arcing events, safe and reliable isolator operation device occur during combined floodgate for empty arc-chutes.
For this purpose, the present invention provides a kind of isolator operation device, including shell and the ground connection for being set to the shell
Operating mechanism, the ground connection operating mechanism includes the ground connection operating shaft for being installed on the shell, is linked with the ground connection operating shaft
Ground connection transmission shaft and with grounding contact linkage transmission mechanism；The transmission mechanism includes rotatably being set to the ground connection
Actuating arm on transmission shaft；The actuating arm rotates forward or rotates backward the driving transmission mechanism movement and closed a floodgate with being grounded
Or ground connection separating brake；
The ground connection operating mechanism further includes：
First elastic component is set between the shell and the ground connection transmission shaft；The ground connection transmission shaft is positive or anti-
To the equal energy storage and release energy storage of the first elastic component described in rotation process；
Actuator, linkage are set to the ground connection transmission shaft, pass through in the first elastic component forward direction release thermal energy storage process
The actuator drives the actuating arm to rotate forward；The driving is driven by the actuator in reversed release thermal energy storage process
Arm rotates backward；
Locking mechanism, ground connection separating brake lock the actuating arm after the completion, and the actuator is rotated forward to setting position and solved
Lock the lock fit of the locking mechanism and the actuating arm.
As a preferred embodiment, the actuator includes setting radian by axis, interval of the ground connection transmission shaft and setting
Set two driving protrusions, are provided with the fitting projection with the driving male cooperation on the actuating arm, the actuator around
The actuating arm pivoting is driven by the driving protrusion and the cooperation of the fitting projection during shaft rotation is dynamic.
As a preferred embodiment, the locking mechanism includes being rotatablely installed in the locking level of the shell, the locking
Bar one end is molded the limiting slot of the restricted fitting projection towards the ground connection transmission shaft side；The locking mechanism further includes
The second elastic component being set between shell and locking level, under the action of second elastic component, the locking level is to close
It is rotated with the cooperation position of the limiting slot；It is provided on the actuator and turns to setting position the locking level is driven to overcome
The second elastic component elastic force rotates backward the unlock protrusion that locking is detached from the fitting projection.
As a preferred embodiment, the actuator is with the cam part of the ground connection transmission shaft rotation, the cam
Component includes a lug boss in arc-shaped, and the both ends of the lug boss are respectively formed the first notch end and the second notch end；
First notch end and second notch end are two driving protrusions, first notch end and second recess
It is unlock protrusion to hold the lug boss between both ends.
As a preferred embodiment, further include being installed on the ground connection transmission shaft relative to the fixed intermediate folder of the shell
Plate, the locking level are articulated with the middle splint by rotation axis, and second elastic component is to be sheathed in the rotation axis
Torsional spring, one end is resisted against on the shell, and the other end is resisted against the locking level.
As a preferred embodiment, the actuating arm is provided with the axis pin part for the both sides side for being arranged in the actuating arm,
The axis pin part is slideably positioned in the molding arc groove of the middle splint close to one end of the middle splint, close to the drive
The other end of moving part is the fitting projection.
As a preferred embodiment, described ground connection transmission shaft one end is provided with rocking arm, and the eccentric end of the rocking arm, which is fixed, to be connected
It is connected to first elastic component, the other end of first elastic component is rotationally connected with the installation axle being arranged on the shell.
As a preferred embodiment, ground connection output shaft is installed, the transmission mechanism further includes rotatable on the shell
The contact transmission arm for being connected to the ground connection output shaft and linking with the grounding contact, and, both ends are rotatably connected described
The connecting plate of contact transmission arm and the actuating arm.
As a preferred embodiment, further include isolated operation mechanism, the isolated operation mechanism include isolated operation axis and
By the shaft-driven isolation transmission shaft of the isolated operation, the isolation transmission shaft is arranged in parallel with the ground connection transmission shaft, described
It is provided between isolation transmission shaft and the ground connection transmission shaft in be isolated that "on" position limits that the ground connection transmission shaft rotates the
One interlocking mechanism, and, the second interlocking mechanism of transmission shaft rotation is isolated described in contact of earth state limit.
As a preferred embodiment, first interlocking mechanism includes first be fixedly installed on the ground connection transmission shaft
Limiting plate, and, corresponding first limiting plate is fixedly installed on the second limiting plate on the isolation transmission shaft, and described second
Limiting plate is opposite with first limiting plate when the isolation transmission shaft closes a floodgate or offsets.
As a preferred embodiment, second interlocking mechanism includes the third limiting plate taken shape on the actuating arm,
It is fixedly installed on the 4th limiting plate on the isolation transmission shaft with the correspondence third limiting plate, the third limiting plate is in institute
It states opposite with the 4th limiting plate when ground connection transmission shaft closes a floodgate or offsets.
The present invention also provides a kind of disconnecting switch, including any one of them isolator operation device among the above.
The above technical solution of the present invention has the following advantages over the prior art：
1. in isolator operation device provided by the invention, by operational grounding operating shaft with drive ground connection transmission shaft and
Actuating arm rotates forward or backwards, to be grounded the ground connection separating brake or feed motion of operating mechanism, when completing to be grounded separating brake,
Actuating arm and locking mechanism cooperation locking are driven by actuator, that is, limits actuating arm and rotates again after in place in separating brake, into
And transmission mechanism and grounding contact is made to keep open position locking, it is grounded operating mechanism and is transformed into separating brake shape from "on" position
Separating brake is played when state to limit in place, avoids that mechanical impact occurs during separating brake, reaches reduction to movable end of vacuum arc extinguishing chamber
The purpose of separating brake rebound, safety are more preferable；And when contact of earth operates, actuating arm is locked in combined floodgate first half term by locking mechanism
It firmly remains stationary as, and then keeps movable end of vacuum arc extinguishing chamber motionless, and so that actuating arm is in the first elastic component and store up releasable fortune
Dynamic section；When actuator, which drives actuating arm and locking mechanism to unlock, to be coordinated, ground connection transmission shaft is made to release energy in the first elastic component
Lower rapid closing rotation had both improved the energy storage effect of the first elastic component in this way to which drive transmission device moves to closing position
Fruit, release to improve the closing speed of ground connection operating mechanism, it is ensured that the dynamic and static contact in vacuum interrupter is closing in turn greatly
Electric arc occurs for lock moment, avoids that arcing events occur in advance, reduces and is damaged to contact, and that improves ground connection arc-chutes uses the longevity
Life.From the foregoing, it will be observed that limit when ground connection existing separating brake of operating mechanism of the present invention keeps function, has and protected with energy storage when closing a floodgate
Hold function.
2. in isolator operation device provided by the invention, the actuator includes two driving protrusions, the driving
The fitting projection with the driving male cooperation is provided on arm, it is convex by the driving during the actuator pivoting
It plays the cooperation with the fitting projection and drives the actuating arm pivoting, in above structure setting, between two driving protrusions
It is arranged at intervals with radian, can be matched respectively with fitting projection when being grounded the rotation of transmission shaft switch closing and switch opening, i.e. contact of earth
When drive described actuating arm to rotate forward by one of driving protrusion, and pass through another driving protrusion when ground connection separating brake
The actuating arm is driven to rotate backward, it can be seen that, actuator transmits movement and power, knot between ground connection transmission shaft and actuating arm
Structure is simple, coordinates reliable transmission.
3. in isolator operation device provided by the invention, described locking level one end is towards the ground connection transmission shaft side
It is molded the limiting slot of the restricted fitting projection, the locking level connects under the action of second elastic component to close to described
The direction of ground transmission shaft rotates, and this structure setting, the second elastic component can be provided when the fitting projection is locked in limiting slot
The active force of locking, to realize lock fit, actuating arm is maintained at open position and is failure to actuate at this time, and separating brake is played to actuating arm
Position-limiting action；In order to release the lock fit of actuating arm and locking level in making process, it is provided on the actuator
Turning to setting position, to drive the locking level that the second elastic component elastic force is overcome to rotate backward de- with the fitting projection
Unlock protrusion from locking, in contact of earth, during the unlock protrusion of the actuator is rotated forward with ground connection transmission shaft
It pushes locking level to rotate backward, unclamps until being detached to make limiting slot mutually unclamp with fitting projection until being detached from, design is closed
Reason, cooperation are reliable.
4. in isolator operation device provided by the invention, the actuator is with the convex of the ground connection transmission shaft rotation
Wheel component, the cam part include a lug boss in arc-shaped, and the both ends of the lug boss are respectively formed the first recess
End and the second notch end.This this structure setting passes through when the cam part is rotated backward with the ground connection transmission shaft separating brake
First notch end drive the fitting projection to be caught in the limiting slot with formed lock fit and the cam part with
When the ground connection transmission shaft combined floodgate rotates forward, coordinated with unlocking by unlocking protrusion jack-up locking level certain altitude, by
Second notch end drives the fitting projection abjection limiting slot and moves to closing position, at this point, locking level is in the second bullet
Property part under the action of be resisted against unlock protrusion curved end on.
5. in isolator operation device provided by the invention, the first elastic component is energy-stored spring, and one end is fixed and institute
It states in the eccentric end of rocking arm, the other end is rotationally connected in the installation axle being arranged on the shell, during contact of earth,
First elastic component carries out energy storage when closing a floodgate and rotate with ground connection transmission shaft, and during actuating arm is locked by locking mechanism always
In energy storage hold mode, 1 boundary's point of release potential energy is progressivelyed reach, reaches maximum energy storage when closing a floodgate to meet energy-stored spring
Effect, potential energy is big, when unlock between locking mechanism and actuating arm cooperation when, the first elastic component with ground connection transmission shaft continue turn
Energy storage is moved and discharged, ground connection transmission shaft rapid closing rotation is driven again in exoergic process, improves closing speed, it is big to reach
It is big to shorten closing operating time, it is ensured that the safety of contact of earth can make vacuum interrupter quickly extinguish electric arc.
6. in isolator operation device provided by the invention, distinguishing shape between the isolation transmission shaft and ground connection transmission shaft
At the first interlocking mechanism for being useful for limiting the ground connection transmission shaft closing operation and for limiting the isolation transmission shaft combined floodgate
Second interlocking mechanism of operation, this structure setting, it is ensured that the operating position of operating device is not to be exactly in isolation closing position
In isolation open position or earthing position, mechanical latching is realized, prevent major loop electrification from closing earthing knife-switch, the danger for avoiding maloperation from bringing
Evil, to meet the relevant regulations of safety operation：Earthing switch need to be separated first, then closes disconnecting switch, prevent from not tapping ground
Disconnecting switch is just closed before switch, or just closes earthing switch before not dividing disconnecting switch, ensures processing safety.
7. in disconnecting switch provided by the invention, it is provided with isolator operation device as described above, thus it is natural
Have the advantages that all brought because above-mentioned isolator operation device is arranged, can realize and close a floodgate in isolation, separating brake is isolated and connects
Conversion between ground three stations of combined floodgate, prevents major loop electrification from closing earthing knife-switch, the harm for avoiding maloperation from bringing.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.
Fig. 1 is the structural schematic diagram for the isolator operation device that invention provides；
Fig. 2 is the internal structure schematic diagram of isolator operation device shown in Fig. 1；
Fig. 3 is structural schematic diagram of the isolator operation device in contact of earth/isolation open position of invention；
Fig. 4 is structural schematic diagram of the isolator operation device in ground connection separating brake/isolation open position of invention；
Fig. 5 is structural schematic diagram of the isolator operation device in ground connection separating brake/isolation closing position of invention；
Fig. 6 is the fit structure schematic diagram of the locking mechanism and actuator of the present invention；
Reference sign：1- shells, 11- middle splints, 12- first bevel gears, 13- second bevel gears, 2- ground connection behaviour
Make axis, 3- is grounded transmission shaft, 30- rocking arms, 31- actuators, 310- lug bosses, the first notch ends of 311-, the second recesses of 312-
End, the first limiting plates of 32-, 4- output shafts, 5- transmission mechanisms, 50- fitting projections, 51- actuating arms, 52- connecting plates, 53- contacts
Transmission arm, 54- third limiting plates, 6- locking mechanisms, 61- locking levels, the second elastic components of 62-, 63- limiting slots, the first elasticity of 7-
Transmission shaft, the second limiting plates of 91-, the 4th limiting plates of 92- is isolated in part, 8- isolated operation axis, 9-.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.
In the description of the present invention, it should be noted that term " first ", " second ", " third " are used for description purposes only,
It is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment 1
The present embodiment is specifically described below in conjunction with the accompanying drawings：
The present embodiment provides a kind of isolator operation device as shown in figures 1 to 6, including shell 1 and it is set to described
The ground connection operating mechanism of shell, the ground connection operating mechanism include the ground connection operating shaft 2 for being installed on the shell 1, are installed on institute
State the ground connection transmission shaft 3 that shell 1 links with the ground connection operating shaft 2 and the transmission mechanism 5 to link with grounding contact；The biography
Motivation structure 5 includes rotatably being set to actuating arm 51 on the ground connection transmission shaft 3；The actuating arm 51 rotates forward or reversely turns
The dynamic driving movement of transmission mechanism 5 is to be grounded combined floodgate or ground connection separating brake；
The ground connection operating mechanism further includes：
First elastic component 7 is set between the shell 1 and the ground connection transmission shaft 3；The ground connection transmission shaft 3 is positive
Or 7 equal energy storage and release energy storage of the first elastic component described in counter rotation；
Actuator 31, linkage are set to the ground connection transmission shaft 3, and first elastic component 7 is positive to be discharged in thermal energy storage process
It drives the actuating arm 51 to rotate forward by the actuator, that is, executes contact of earth operation；In reversed release thermal energy storage process
It drives the actuating arm 51 to rotate backward by the actuator 31, that is, executes ground connection sub-switching operation；
Locking mechanism 6, ground connection separating brake lock the actuating arm 51 after the completion, and the actuator 31 is rotated forward to setting position
Set the lock fit for unlocking the locking mechanism 6 and the actuating arm 51.
In the above embodiment, operating shaft 2 is grounded by manual operation to drive ground connection transmission shaft 3 and actuating arm 51 positive
Or rotate backward, to be grounded the ground connection separating brake or feed motion of operating mechanism, when completing to be grounded separating brake, pass through actuator
Actuating arm 51 and the cooperation locking of locking mechanism 6 are driven, that is, limits actuating arm 51 and rotates again after in place in separating brake, and then make biography
Motivation structure and grounding contact keep open position locking, are grounded operating mechanism from "on" position is transformed into gate-dividing state
It is limited in place to separating brake, avoids that mechanical impact occurs during separating brake, it is anti-to the separating brake of movable end of vacuum arc extinguishing chamber to reach reduction
The purpose of bullet, safety are more preferable；And when contact of earth operates, actuating arm 51 is lockked in combined floodgate first half term by locking mechanism 6
And remain stationary as, and then keeping movable end of vacuum arc extinguishing chamber motionless, the first elastic component 7 is in energy storage hold mode, and makes actuating arm
Releasable motor segment is stored up in the first elastic component, when actuator, which drives actuating arm 51 and locking mechanism 6 to unlock, to be coordinated,
Ground connection transmission shaft rapid closing in the case where the first elastic component 7 releases energy is set to rotate, to which drive transmission device moves to closing position, this
Sample had both improved the energy storage effect of the first elastic component, and release to improve the closing speed of ground connection operating mechanism in turn greatly, it is ensured that
In moment of closing a floodgate electric arc occurs for the dynamic and static contact in vacuum interrupter, avoids that arcing events occur in advance, reduces to contact
Damage improves the service life of ground connection arc-chutes.From the foregoing, it will be observed that limit when ground connection existing separating brake of operating mechanism of the present invention is protected
Function is held, has energy storage when having the function of to close a floodgate to keep.
It elaborates with reference to the set-up mode of Fig. 3-5 pairs of actuators and actuating arm：
It is axis that the actuator 31, which includes with the ground connection transmission shaft 3, two drivings of interval setting radian setting are convex
It rises, the fitting projection 50 with the driving male cooperation, 31 pivoting of the actuator is provided on the actuating arm 51
51 pivoting of actuating arm is driven by the driving protrusion and the cooperation of the fitting projection in journey.Above structure is arranged
In, two driving protrusion between interval setting radian, can be grounded 3 switch closing and switch opening of transmission shaft rotation when respectively with fitting projection
50 match, i.e., contact of earth when drive the actuating arm 51 to rotate forward by one of driving protrusion, and ground connection point
Drive the actuating arm 51 to rotate backward by another driving protrusion when lock, it can be seen that, actuator in ground connection transmission shaft and
Movement and power are transmitted between actuating arm, it is simple in structure, coordinate reliable transmission.
It elaborates below in conjunction with the specific set-up mode of Fig. 3-6 pairs of locking mechanisms：
The locking mechanism 6 includes rotational installation in the locking level 61 of the shell 1,61 one end direction of the locking level
3 side of the ground connection transmission shaft is molded the limiting slot 63 of the restricted fitting projection 50, and limiting slot is groove structure, court
To the open end of cam part tool, there are two protrusions；The locking mechanism 6 further includes being set between shell and locking level 61
Second elastic component 62, under the action of the second elastic component 62, the locking level 61 is to the close position coordinated with fitting projection
Rotation, this structure setting are set, second elastic component 62 can be carried when the fitting projection 50 is locked in the limiting slot 63
For the active force of locking, to realize lock fit, actuating arm 51 is maintained at open position and is failure to actuate at this time, is played to actuating arm
Separating brake position-limiting action；It is further preferred that in order to release the lock fit of actuating arm and locking level, institute in making process
It states to be provided on actuator 31 and turns to setting position the locking level 61 is driven to overcome 62 elastic force of the second elastic component anti-
The unlock protrusion of locking, in contact of earth, the unlock protrusion of the actuator 31 are detached from the fitting projection 50 to rotation
It rotates forward to locking level 61 described in unlocked position pushing tow and rotates backward with ground connection transmission shaft, to keep limiting slot 63 and cooperation convex
It plays 50 mutually to unclamp until being detached from, reasonable design, cooperation is reliable.
Made further preferably according to the above embodiment, as shown in fig. 6, the actuator 31 is with the ground connection transmission shaft
The cam part of 3 rotations, the cam part include a lug boss 310 in arc-shaped, the both ends difference of the lug boss
Form the first notch end 311 and the second notch end 312；Specifically, first notch end 311 and second notch end 312
For two driving protrusions, the lug boss between first notch end 311 and 312 both ends of the second notch end is described
Unlock protrusion, i.e. the first notch end 311 and second notch end 312 take shape on the arc length both ends of unlock protrusion.By upper
Structure setting is stated, when the cam part is rotated backward with 3 separating brake of ground connection transmission shaft, passes through first notch end
311, which drive the fitting projection 50 to be caught in the limiting slot 63, is connect with forming lock fit and the cam part with described
When the combined floodgate of ground transmission shaft 3 rotates forward, 61 certain altitude of locking level is jacked up with the cooperation that unlocks by unlocking protrusion, then
It drives the fitting projection 20 to deviate from limiting slot 63 by second notch end 312 and moves to closing position, at this point, locking level
61 are resisted against under the action of the second elastic component on the curved end of unlock protrusion, convenient in separating brake motion process, and can be with
Fitting projection is driven to form lock fit with limiting slot by the first notch end, repeatedly.
As shown in Fig. 2, the isolator operation device of the present embodiment further include be installed on the ground connection transmission shaft 3 relative to
1 fixed middle splint 11 of the shell, the locking level 61 are articulated with the middle splint 11 by rotation axis, and described second
Elastic component 62 is the torsional spring being sheathed in the rotation axis, and one end is resisted against on the shell 1, and the other end is resisted against the lock
Fixed pole 61.This structure setting provides installation site for locking level and torsional spring, and the torsional spring provides for locking level matches described in locking
The biasing force for closing protrusion 50 enhances the stability of cooperation, or under latch-up-free cooperation, locking level 61 can be driven to be pressed against convex
On wheel component.
The actuating arm 51 is provided with the both sides side for being arranged in the actuating arm 51 as a preferred implementation manner,
Axis pin part, the axis pin part is slideably positioned in 11 molding arc of the middle splint close to one end of the middle splint 11
Slot, the other end close to the actuator 31 are the fitting projection 50, one end edge of the axis pin part relative to fitting projection
The arc groove movement, the both ends of the arc groove are respectively the combined floodgate where when axis pin part is moved with actuating arm switch closing and switch opening
Position and open position, also, the axis pin part reaches locked lever lock when arc groove corresponds to one end of open position and lives, to
It avoids causing to hit during separating brake rebounding.
It elaborates with reference to the set-up mode of Fig. 1, Fig. 3-5 pairs of the first elastic components：
Described 3 one end of ground connection transmission shaft is provided with rocking arm 30, and the eccentric end of the rocking arm 30 is fixedly connected with described first
Elastic component 7, the other end of first elastic component 7 are rotationally connected with the installation axle being arranged on the shell 1, and described first
Elastic component 7 is energy-stored spring, and in summary it is found that during contact of earth, first elastic component 7 is closed with ground connection transmission shaft
Lock carries out energy storage when rotating, and is constantly in energy storage hold mode during actuating arm 51 is locked by locking mechanism 6, progressivelyes reach
The 1 boundary's point for discharging potential energy reaches maximum energy storage effect to meet the first elastic component when closing a floodgate, and potential energy is big, when locking mechanism and
Unlock between actuating arm cooperation when, the first elastic component 7 with ground connection transmission shaft be rotated further and discharge energy storage, in exoergic process
In again drive ground connection transmission shaft rapid closing rotation, improve closing speed, greatly shorten closing operating time to reach, it is ensured that
The safety of contact of earth can make vacuum interrupter quickly extinguish electric arc.
In the present embodiment, as shown in Fig. 2, the ground connection operating shaft 1 connects the ground connection biography by gear transmission structure
Moving axis 3, the gear transmission structure include that the first bevel gear 12 that linkage is set in the ground connection operating shaft 1 and linkage are set
It is placed in the second bevel gear 13 engaged on the ground connection transmission shaft 3 and with the first bevel gear 12, passes through gear transmission mode
Movement and power are transmitted between ground connection operating shaft 1 and ground connection transmission shaft.As a kind of specific set-up mode, on the shell 1
Be equipped with ground connection output shaft 4, the transmission mechanism 5 further include be rotationally connected with the ground connection output shaft 4 and with the ground connection
The contact transmission arm 53 of contact linkage, and, both ends are rotatably connected the company of the contact transmission arm 53 and the actuating arm 51
Fishplate bar 52, the actuating arm 51 is connected on ground connection transmission shaft, in summary it is found that the ground connection transmission shaft 3 passes through driver
Structure will move and power is transferred on ground connection output shaft, and one end of the ground connection output shaft 4 is provided with for connecting grounding contact
Output toggle arm finally makes the grounding contact on output shaft move to contact of earth or the work of separating brake in entire transmission process
On position, grounding contact is preferably the moved end of vacuum interrupter in the present embodiment, that is, realizes the dynamic and static contact of vacuum interrupter
It is closed or disconnects.
It is illustrated with reference to the operation principle of Fig. 3-5 pairs of ground connection operating mechanisms：
It is grounded operating mechanism separating brake process：The ground connection operating shaft 2 drives ground connection transmission shaft 3 anti-by gear transmission structure
To rotation, the first elastic component 7, which is transitted in being grounded transmission shaft rotation process by energy storage, releases energy, and by shaking under de-energized state
Dynamic ground connection 3 quick rotation of transmission shaft of armband, actuator 31 is with 51 turns of actuating arm of drive in ground connection 3 separating brake rotation process of transmission shaft
It is dynamic, so that transmission mechanism 5 drives the ground connection output shaft 4 to carry out separating brake rotation, and grounding contact pair is driven by ground connection output shaft
Separating brake acting needed for outer offer and impulse stroke.When being converted into gate-dividing state from "on" position, actuator drives actuating arm
On axis pin part and locking level form lock fit, to keep open position to limit.
It is grounded operating mechanism making process：The ground connection operating shaft 2 is driving ground connection transmission shaft 3 just by gear transmission structure
To rotation, actuating arm 51 is locked in combined floodgate first half term and remains stationary as, by actuator 31 with ground connection transmission shaft combined floodgate rotation
Driving locking level 61 and actuating arm 51 unlocks cooperation in the process, and at the same time, the first elastic component 7 is rotated in ground connection transmission shaft
It is transitted in the process by energy storage and releases energy, and ground connection 3 quick rotation of transmission shaft is driven by rocking arm under de-energized state, and then driven
Transmission mechanism drives the ground connection output shaft 4 to carry out combined floodgate rotation, and is driven needed for the external offer of grounding contact by output shaft
Combined floodgate acting and impulse stroke.
The operating device of the present embodiment further includes isolated operation mechanism, and the isolated operation mechanism includes isolated operation axis 8
With the isolation transmission shaft 9 driven by the isolated operation axis 8, the isolation transmission shaft 9 is parallel with the ground connection transmission shaft 3 to be set
It sets, to ensure the safety operation of disconnecting switch, realizes that the room machine of isolator operating mechanism and isolator operating mechanism closes
Lock prevents occurring maloperation between disconnecting switch is closed a floodgate, disconnecting switch separating brake and disconnecting switch are grounded three positions, it is described every
From transmission shaft 9 and it is described ground connection transmission shaft 3 between be provided be isolated "on" position limit it is described ground connection transmission shaft 3 rotation
First interlocking mechanism, and, the second interlocking mechanism that transmission shaft 9 rotates is isolated described in contact of earth state limit.
Illustrate the specific set-up mode of the first interlocking mechanism and the second interlocking mechanism with reference to Fig. 3-5：
First interlocking mechanism includes the first limiting plate 32 being fixedly installed on the ground connection transmission shaft 3, and,
Corresponding first limiting plate 32 is fixedly installed on the second limiting plate 91 on the isolation transmission shaft 9, second limiting plate
91 is opposite with first limiting plate 32 when the isolation transmission shaft 9 closes a floodgate or offset, isolated operation mechanism as shown in Figure 5
In closing position, being grounded operating mechanism at this time can not be closed a floodgate by the limitation of the first interlocking mechanism.As a kind of specific set-up mode,
Second interlocking mechanism includes the third limiting plate 54 taken shape on the actuating arm 51, and the corresponding third limiting plate 54
The 4th limiting plate 92 being fixedly installed on the isolation transmission shaft 9, the third limiting plate 54 is in the ground connection transmission shaft 3
Opposite with the 4th limiting plate 92 or offset when combined floodgate, ground connection operating mechanism as shown in Figure 3 is in closing position, this after
It can not be closed a floodgate by the limitation of the second interlocking mechanism from operating mechanism.By above structure, it is ensured that the operating position of operating device
It is not to be exactly to realize mechanical latching in isolation open position or earthing position, prevent major loop electrification from closing in isolation closing position
Earthing knife-switch, the harm for avoiding maloperation from bringing, to meet the relevant regulations of safety operation：Earthing switch need to be separated first, then is closed
Disconnecting switch prevents from just closing disconnecting switch before not dividing earthing switch, or just closes earthing switch before preventing not point disconnecting switch,
Ensure processing safety.
Embodiment 2
Include the isolator operation device described in embodiment 1 the present embodiment provides a kind of disconnecting switch, thus from
So have the advantages that all brought because above-mentioned isolator operation device is arranged, can realize combined floodgate is isolated, separating brake is isolated and
Conversion between three stations of contact of earth, operating position is unique, prevents major loop electrification from closing earthing knife-switch, maloperation is avoided to bring
Harm.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (12)
1. a kind of isolator operation device, which is characterized in that operated including shell (1) and the ground connection for being set to the shell
Mechanism, the ground connection operating mechanism includes the ground connection operating shaft (2) for being installed on the shell (1), is joined with the ground connection operating shaft
Dynamic ground connection transmission shaft (3) and the transmission mechanism (5) with grounding contact linkage；The transmission mechanism (5) includes rotatably setting
It is placed in actuating arm (51) on the ground connection transmission shaft (3)；The actuating arm (51) rotates forward or rotates backward the driving biography
Motivation structure (5) movement is to be grounded combined floodgate or ground connection separating brake；
The ground connection operating mechanism further includes：
First elastic component (7) is set between the shell (1) and the ground connection transmission shaft (3)；The ground connection transmission shaft (3)
The energy storage and release energy storage of first elastic component (7) described in rotation process forward or backwards；
Actuator (31), linkage are set to the ground connection transmission shaft (3), the positive release thermal energy storage process of first elastic component (7)
In drive the actuating arm (51) to rotate forward by the actuator；It is driven by the actuator in reversed release thermal energy storage process
The actuating arm (51) is moved to rotate backward；
Locking mechanism (6), ground connection separating brake lock the actuating arm (51) after the completion, and the actuator (31) rotates forward to setting
Position unlocks the lock fit of the locking mechanism (6) and the actuating arm (51).
2. isolator operation device according to claim 1, it is characterised in that：The actuator (31) includes with described
Be grounded transmission shaft (3) be axis, interval setting radian setting two driving protrusions, be provided on the actuating arm (51) and institute
The fitting projection (50) of driving male cooperation is stated, passes through driving protrusion and institute during actuator (31) pivoting
The cooperation for stating fitting projection (50) drives actuating arm (51) pivoting.
3. isolator operation device according to claim 2, it is characterised in that：The locking mechanism (6) includes rotation
It is installed on the locking level (61) of the shell (1), described locking level (61) one end is molded towards ground connection transmission shaft (3) side
The limiting slot (63) of the restricted fitting projection；The locking mechanism (6) further include be set to shell and locking level (61) it
Between the second elastic component (62), under the action of the second elastic component (62), the locking level (61) is to close with the limit
The cooperation position rotation of position slot (63)；It is provided on the actuator (31) and turns to the setting position driving locking level (61)
The second elastic component (62) elastic force is overcome to rotate backward the unlock protrusion for being detached from locking with the fitting projection (50).
4. isolator operation device according to claim 3, it is characterised in that：The actuator (31) is to be connect with described
The cam part of ground transmission shaft (3) rotation, the cam part include a lug boss (310) in arc-shaped, the protrusion
The both ends in portion are respectively formed the first notch end (311) and the second notch end (312)；First notch end (311) and described
Two notch ends (312) are two driving protrusions, first notch end (311) and second notch end (312) both ends
Between lug boss be that the unlock is raised.
5. isolator operation device according to claim 4, it is characterised in that：Further include being installed on the ground connection transmission
Axis (3) relative to the shell (1) fixed middle splint (11), the locking level (61) by rotation axis be articulated with it is described in
Between clamping plate (11), second elastic component (62) is the torsional spring being sheathed in the rotation axis, and one end is resisted against the shell
(1) on, the other end is resisted against the locking level (61).
6. isolator operation device according to claim 5, it is characterised in that：The actuating arm (51), which is provided with, to be worn
Axis pin part in the actuating arm (51) both sides side, the axis pin part slide setting close to one end of the middle splint (11)
In the middle splint (11) molding arc groove, the other end close to the actuator (31) is the fitting projection (50).
7. isolator operation device according to claim 1, it is characterised in that：Described ground connection transmission shaft (3) one end is set
It is equipped with rocking arm (30), the eccentric end of the rocking arm (30) is fixedly connected with first elastic component (7), first elastic component
(7) the other end is rotationally connected with the installation axle being arranged on the shell (1).
8. isolator operation device according to claim 1, it is characterised in that：Ground connection is installed on the shell (1)
Output shaft (4), the transmission mechanism (5) further include be rotationally connected with the ground connection output shaft (4) and with the grounding contact
The contact transmission arm (53) of linkage, and, both ends are rotatably connected the contact transmission arm (53) and the actuating arm (51)
Connecting plate (52).
9. the isolator operation device according to any one of claim 1-8, it is characterised in that：It further include isolated operation
Mechanism, the isolated operation mechanism include being installed on the isolated operation axis (8) of the shell (1) and being driven by the isolated operation axis
Dynamic isolation transmission shaft (9), the isolation transmission shaft (9) are arranged in parallel with the ground connection transmission shaft (3), the isolation transmission shaft
(9) it is provided between ground connection transmission shaft (3) in be isolated that "on" position limits that the ground connection transmission shaft rotates first
Latch mechanism, and, the second interlocking mechanism of transmission shaft rotation is isolated described in contact of earth state limit.
10. isolator operation device according to claim 9, it is characterised in that：First interlocking mechanism includes solid
Surely the first limiting plate (32) being set on the ground connection transmission shaft (3), and, corresponding first limiting plate (32) fixation is set
The second limiting plate (91) being placed on the isolation transmission shaft (9), second limiting plate (91) is in the isolation transmission shaft (9)
It is opposite with first limiting plate (32) or offset when combined floodgate.
11. isolator operation device according to claim 9 or 10, it is characterised in that：The second interlocking mechanism packet
The third limiting plate (54) taken shape on the actuating arm (51) is included, and the corresponding third limiting plate (54) is fixedly installed on institute
The 4th limiting plate (92) on isolation transmission shaft (9) is stated, the third limiting plate (54) is when the ground connection transmission shaft (3) is closed a floodgate
It is opposite with the 4th limiting plate (92) or offset.
12. a kind of disconnecting switch, it is characterised in that：Including the isolator operation dress described in any one of claim 1-11
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810387187.3A CN108364819B (en) | 2018-04-26 | 2018-04-26 | Isolating switch operating device and isolating switch with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810387187.3A CN108364819B (en) | 2018-04-26 | 2018-04-26 | Isolating switch operating device and isolating switch with same |
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| Publication Number | Publication Date |
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| CN108364819A true CN108364819A (en) | 2018-08-03 |
| CN108364819B CN108364819B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810387187.3A Active CN108364819B (en) | 2018-04-26 | 2018-04-26 | Isolating switch operating device and isolating switch with same |
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| CN109378248A (en) * | 2018-12-10 | 2019-02-22 | 法腾电力装备江苏有限公司 | Minitype high voltage cabinet formal dress tri-station isolating switch |
| CN109585197A (en) * | 2019-01-17 | 2019-04-05 | 科都电气有限公司 | A kind of device for switching operating device |
| CN110189955A (en) * | 2019-06-17 | 2019-08-30 | 浙江奔一电气有限公司 | A kind of double-energy storage operating mechanism of disconnecting switch |
| CN114220697A (en) * | 2021-05-24 | 2022-03-22 | 嘉兴京硅智能技术有限公司 | Pole locking and unlocking mechanism of isolating switch mechanism |
| CN114256023A (en) * | 2021-11-23 | 2022-03-29 | 北京双杰电气股份有限公司 | Direct-acting type isolation grounding mechanism |
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| CN114220698A (en) * | 2021-05-24 | 2022-03-22 | 嘉兴京硅智能技术有限公司 | Isolating switch mechanism pole |
| CN114220698B (en) * | 2021-05-24 | 2023-06-23 | 嘉兴京硅智能技术有限公司 | Isolating switch mechanism pole |
| CN114220697B (en) * | 2021-05-24 | 2023-06-27 | 嘉兴京硅智能技术有限公司 | Isolating switch mechanism pole locking and unlocking mechanism |
| CN114256023A (en) * | 2021-11-23 | 2022-03-29 | 北京双杰电气股份有限公司 | Direct-acting type isolation grounding mechanism |
| CN114256023B (en) * | 2021-11-23 | 2024-03-26 | 北京双杰电气股份有限公司 | Direct-acting type isolated grounding mechanism |
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