CN106531545B - A kind of high-pressure vacuum breaker - Google Patents
A kind of high-pressure vacuum breaker Download PDFInfo
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- CN106531545B CN106531545B CN201611026788.9A CN201611026788A CN106531545B CN 106531545 B CN106531545 B CN 106531545B CN 201611026788 A CN201611026788 A CN 201611026788A CN 106531545 B CN106531545 B CN 106531545B
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- conductive rod
- chain drum
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- absorber
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- 230000005540 biological transmission Effects 0.000 claims abstract description 116
- 230000003068 static effect Effects 0.000 claims abstract description 100
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000033001 locomotion Effects 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 9
- 239000006096 absorbing agent Substances 0.000 claims description 41
- 238000007789 sealing Methods 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 230000008033 biological extinction Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010338 mechanical breakdown Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/36—Driving mechanisms, i.e. for transmitting driving force to the contacts using belt, chain, or cord
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- 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
- H01H9/52—Cooling of switch parts
-
- 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
- H01H9/52—Cooling of switch parts
- H01H2009/526—Cooling of switch parts of the high voltage switches
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a kind of high-pressure vacuum breaker, including insulating cylinder and Transmission Room, vacuum interrupter is provided with insulating cylinder, the upper and lower end of vacuum interrupter is fixed in insulating cylinder by upper bracket, lower carriage respectively；Also include insulated tension pole, the top of the insulated tension pole is connected by the bottom of first spring and moving conductive rod；The transmission mechanism for driving insulated tension pole to do vertical back and forth movement is provided with Transmission Room；The lower end of static conductive rod is additionally provided with clamping device, clamping device includes two clamp bars, two pieces of supporting plates and two the 3rd springs, two pieces of supporting plates are symmetricly set on the both sides of static conductive rod, two clamp bars are fixed with two pieces of supporting plate activities respectively, and the top of two clamp bars is connected by the 3rd spring with static conductive rod respectively.The present invention uses said structure, prevents dynamic/static contact from being beated in contact, extends the service life of bellows, it is ensured that the vacuum of arc-chutes is unaffected.
Description
Technical field
The present invention relates to high-voltage switch gear field, specifically a kind of high-pressure vacuum breaker.
Background technology
High-pressure vacuum breaker, gained the name because its arc-extinguishing medium and the dielectric in arcing contact gap are all vacuum, its
With small volume, it is in light weight, do not have to maintenance suitable for frequent operation, arc extinguishing the advantages of, using more popularizing in power distribution network, very
Empty breaker is 3~10kV, the indoor distribution in 50Hz three-phase alternating current systems, is available for industrial and mining enterprises, power plant, transformer station
Middle protection and control as electric equipment is used, especially suitable for requiring the use field of non-oil ultra high vacuum system, few maintenance and frequent operation
Institute, breaker are configurable in middle-placed switch cabinet, double-layer cabinet, fixed cabinet and used as control and protection high voltage electric equipment.
High-pressure vacuum breaker generally comprise support, vacuum interrupter, galvanic circle, transmission mechanism, insulating supporting and
Operating mechanism, support are used to install each functional unit, and vacuum interrupter is used to extinguishing contact and closed and caused by cut-offfing
Electric arc, galvanic circle are used to connect and compose current channel with the moved end of vacuum interrupter and static side, and transmission mechanism is used for actuating
The motion of mechanism is transmitted to vacuum interrupter, is realized and is closed, opens a sluice gate, and insulating supporting is used to get up each function element bridge joint with full
Sufficient insulating requirements, operating mechanism are the power drive units for realizing breaker division.
At present, either split type or combined, a high-pressure vacuum breaker at most by it is hundreds of mechanically and electrically
Element forms, and the Finish ＆ Workmanship defect of each parts, the link occlusion that cooperates will directly affect high pressure vacuum
The mechanical property of breaker.Such as the high-pressure vacuum breaker of currently the majority using connecting rod as transmission mechanism, and main connecting lever
The spindle nose gap of connection can become big with the increase of usage time, and after operating mechanism makes action, its power can not be real
When reflect on transmission mechanism, i.e., the contact in vacuum extinction room can not be driven, so can not realize breaker point
Closing operation, cause to occur refusing to close, refuse a point failure, the time between overhauls(TBO) of breaker and service life accordingly shorten.
In addition, the transmission displacement problem occurred along with transmission mechanism, bounce either mechanically or stress are not
, then or Impact direction skew, all contact may be caused to be beated when contacting with each other, between dynamic/static contact between
The suddenly change of gap will certainly cause contact resistance acutely to increase the rapid rise with temperature, and the load of vacuum interrupter substantially carries
Height, it is unfavorable for breaker and is chronically at steady-working state, while can also shortens the service life of breaker.
Further, the loop resistance of high-pressure vacuum breaker is the main heating source for influenceing temperature rise, and the loop resistance of arc-chutes
Generally to account for more than the 50% of high-pressure vacuum breaker loop resistance.Contact gap contact resistance is vacuum interrupter loop resistance
Chief component because contact system is sealed in vacuum extinction room, in order to ensure vacuum, caused heat can only lead to
Dynamic and static conducting rod is crossed to external cooling, and the thermally conductive pathways of moving conductive rod, static conductive rod are longer, so radiating efficiency is limited, from
And causing the temperature drift in vacuum extinction room, high temperature can influence the fatigue strength of vacuum interrupter inner corrugated pipe, cause ripple
The service life of pipe shortens, and then influences the vacuum of arc-chutes.
The content of the invention
It is an object of the invention to provide a kind of high-pressure vacuum breaker, solves current high-pressure vacuum breaker and easily goes out
Existing mechanical breakdown, the problem of causing the switching of breaker impacted, dynamic/static contact is easily beated in contact in addition, is led
Contact resistance increase, temperature rise are caused, the load of vacuum interrupter increases, the problem of causing breaker service life to shorten.
The present invention can also solve vacuum interrupter temperature drift, cause the fatigue strength of bellows impacted, and then cause
The problem of service life of bellows shortens and the vacuum of arc-chutes is impacted.
The purpose of the present invention is achieved through the following technical solutions：
A kind of high-pressure vacuum breaker, including insulating cylinder and Transmission Room, the insulating cylinder is interior to be provided with vacuum interrupter, vacuum
The upper and lower end of arc-chutes is fixed in insulating cylinder by upper bracket, lower carriage respectively, and the upper bracket is provided with upper wire outlet seat,
The lower carriage is provided with lower wire outlet seat；
Static conductive rod, static contact, moving contact, moving conductive rod, the first bellows are provided with the vacuum extinction room, it is described quiet
The upper end of conducting rod passes vacuum interrupter and is fixed on upper bracket, and lower end and the static contact of static conductive rod are fixed and realize electricity
Connection, the lower end of the moving conductive rod pass vacuum interrupter and are fixed on lower carriage, the upper end of moving conductive rod and moving contact
Fix and realize electrical connection, worn on the moving conductive rod and be connected to the first bellows, one of port of first bellows
Sealing is fixed on moving conductive rod, and another port and the vacuum interrupter of the first bellows realize that sealing is fixed；
Also include insulated tension pole, the top of the insulated tension pole is connected by the bottom of first spring and moving conductive rod
Connect；
The transmission mechanism for driving insulated tension pole to do vertical back and forth movement is provided with the Transmission Room；
The lower end of the static conductive rod is additionally provided with clamping device, and the clamping device includes two clamp bars, two pieces of supporting plates
And two the 3rd springs, two pieces of supporting plates are symmetricly set on the both sides of static conductive rod, two clamp bars respectively with two pieces of supporting plates
Activity is fixed, and the top of two clamp bars is connected by the 3rd spring with static conductive rod respectively, and the 3rd spring is all the time in pressure
Contracting state, the top of two clamp bars are connected to transmission mechanism by drawstring, and the both sides of the static conductive rod further respectively have one
Individual 3rd bellows, one of port and the static conductive rod sealing of the 3rd bellows are fixed, and another port is fixed with drawstring,
Drawstring passes through the 3rd bellows.
In this programme, the present invention solves two problems, and first is transmission problem, traditional high-pressure vacuum breaker
Substantially using the mode of link transmission, this mode is although easy to operate and realizes, but the problem of obvious be present, and connecting rod passes
The dynamic Impact direction that finally exports be not it is strict straight up, that is to say, that the power that insulated tension pole is subject to can be relative to perpendicular
For Nogata to there is a skew, the power that such insulated tension pole is applied by the first spring to moving conductive rod can also have necessarily inclined
Move, can cause in the course of time insulated tension pole more can not allow in place dynamic/static contact realize preferably contact with separating, especially when
When deviation occurs in operating mechanism (cam, motor), then easily there is switching situation not in place in this when, make breaker without
Method realizes due function.Therefore, this programme realizes that insulated tension pole does vertical back and forth movement using a transmission mechanism, without
It is the motion of near vertical, can be so able to ensure that direction and the insulated tension pole of the power that insulated tension pole is acted on the first spring
The direction of motion be consistent, in the absence of deviation, so as to be dynamic/static contact switching operation more in place, largely avoid
Operating mechanism (cam, motor) is even if having acted the situation that does not also have switching occur.This programme solve another
The problem of problem is beated when being dynamic/static contact contact, due to machine driving, dynamic/static contact inevitably goes out
There is in a flash the problem of flicking, beating in what is now contacted, and existing method can only reduce that bounce amplitude as much as possible and become
Gesture, can not fundamentally solve.Therefore, this programme adds a clamping device, and clamping device is carried out ingenious
Ground designs, and two clamp bars in the trend being harmonious, realize expanding for clamp bar distance, clamping device has one by drawstring all the time
Ingenious part is that moving contact will not touch during being upwardly between two clamp bars with clamp bar, specific performance
Form is, during moving contact moves upwards, two clamp bars are in the state gradually closed, and moving contact is positioned at two
To touching static contact this period between clamp bar, with reference to the shape and folding speed of clamp bar, can ensure all the time clamp bar with it is dynamic
Contact does not contact, and when the moment that moving contact contacts with static contact, clamp bar also close completion, be just stuck in dynamic/static contact just
Between two clamp bars, dynamic/static contact can not be flicked, beated, so as to serve good anti creep performance.Similarly, it is necessary to separating brake
When, clamp bar is opened by the pulling force effect of drawstring, and during opening, moving contact moves downward and gradually leaves two clamp bars, and two
The distance of individual clamp bar is able to ensure that moving contact will not touch clamp bar, that is to say, that the clamping device of this programme prevent it is dynamic
In the case that static contact is beated, touching in the motion process of moving contact is not caused, moving contact is avoided well and is damaged, really
Moving contact good working order and longer service life are protected.
Further, as optimal technical scheme, the transmission mechanism include the first transmission component, the second transmission component with
And the 3rd transmission component；
First transmission component include the first power transmission shaft and be arranged on the first power transmission shaft first under driven chain drum,
Manual chain drum and motor-driven chain drum；
Second transmission component include second driving shaft and the second active chain drum for being arranged on second driving shaft and
Second driven chain drum, the second active chain drum realize linkage by driven chain drum under chain and first；
3rd transmission component include the 3rd power transmission shaft and the 3rd active chain drum that is arranged on the 3rd power transmission shaft and
Master gear, the 3rd active chain drum are realized and linked by chain and the second driven chain drum；
The bottom of the insulated tension pole is connected with a driving rack for being in vertical state, and driving rack is mutually nibbled with master gear
Close.
This programme devises a kind of new kind of drive, substitutes the link transmission mode of transmission, passes through each transmission component
Between cooperation, realize the motion more stable compared to link transmission, each transmission component in the presence of chain drum and chain,
Realize and be more accurately driven, evaded clearance issues, matching problem that traditional link transmission is likely to occur, this programme
The service life of transmission mechanism is longer, and transmission is more accurate, and switching is more in place.Further, since insulated tension pole passes through driving rack
The motion of itself in the vertical direction is realized in mating reaction with master gear, and the direction of motion is consistent with force direction height,
So that moving conductive rod can preferably drive moving contact to contact, separate with static contact.Further, since this programme using chain drum come
Control transmission, therefore the moving displacement of moving conductive rod can be more accurately controlled, and compare for link transmission mode, deviation
It is smaller.In addition, it is necessary to explanation, manual chain drum realizes manual control by the turning handle of outside or the structure of bull stick etc
Switching, and motor-driven chain drum can link with the rotary shaft of stepper motor, be automatically controlled so as to realize, this and traditional high pressure vacuum
The control mode of breaker is the same, by automatically controlling and manually control.
Further, as optimal technical scheme, the static conductive rod is provided with through hole along central axial direction, and the one of through hole
End is sealed by static contact, and the other end of through hole is extended to outside vacuum extinction room, and a heat abstractor is provided with the through hole, described to dissipate
Thermal includes absorber, radiator, second spring and bracing wire, and absorber is located at the lower section of radiator, absorber and radiating
Connected between body by second spring, second spring is in compressive state all the time, and radiator is located at static conductive rod stretching vacuum and gone out
One end of arc chamber, one end of bracing wire are fixed on absorber, and the other end of bracing wire is connected on transmission mechanism.
In this programme, heat abstractor is introduced, this is that existing high-pressure vacuum breaker does not possess, and dynamic/static contact is connecing
Tactile moment, contact resistance is inevitably resulted from, and the partial ohmic will account for high-pressure vacuum breaker loop resistance
More than 50%, dynamic/static contact can such as produce substantial amounts of heat in contact, and can only pass through moving conductive rod, static conductive rod at present
Come to external cooling, be advantageous to radiate although moving conductive rod seems, moving conductive rod connecting link is relatively more, and thermally conductive pathways
Longer, radiating effect is also bad.Therefore, this programme devises a kind of new heat abstractor, absorber and radiator are arranged on
In static conductive rod, when dynamic/static contact contacts, absorber is close in the presence of second spring with static contact, now, heat absorption
Body siphons away heat caused by dynamic/static contact, reduces the heat on dynamic/static contact, and then absorber is by the heat transfer of itself
To radiator, the quick of heat is realized by radiator and scattered and disappeared, so as to avoid that high-pressure vacuum breaker temperature is too high and shadow
Ring the fatigue strength of bellows, it is ensured that bellows has longer service life, while vacuum interrupter has preferable vacuum
Degree.
Further, as optimal technical scheme, the absorber is frustum cone structure, one side of the static contact towards absorber
The recess to match provided with the frustum cone structure with absorber.On static contact set recess after, enable absorber preferably with
Static contact contacts and siphons away the heat on static contact as much as possible, also further reduces the heat on moving contact, so as to avoid
The temperature of vacuum interrupter is too high and influences the service life of bellows and the vacuum of vacuum interrupter.
Further, as optimal technical scheme, the radiator is provided with a blind hole along central axial direction, and blind hole
Aperture linearly reduces along aperture to bottom hole direction, and the bottom hole of blind hole is provided with a perforation passed through for bracing wire.Due to heat absorption
Body is the structure of round platform, and the structure design of blind hole is come after being adapted with the structure of absorber, can make absorber and radiating
Body contact is more abundant, radiating efficiency is further enhanced.
Further, the second bellows is provided with as optimal technical scheme, the radiator, second bellows
One of port is docked with aperture seal, and another port is fixed with bracing wire sealing., can after adding the second bellows
Ensure that vacuum interrupter has reliable vacuum, even if not being to be fully sealed between static contact and static conductive rod, also can
Ensure that whole vacuum interrupter and outside air are completely separated, it is ensured that obtain the arc extinguishing condition of a high vacuum.
Further, it is made of copper as optimal technical scheme, the absorber, radiator, which is adopted, to be formed from aluminium.Copper has
There is stronger heat absorption capacity, and aluminium has stronger heat-sinking capability, copper absorber can be relatively rapid from static contact
Substantial amounts of heat is siphoned away, then leads to peraluminous radiator progress heat and scatters and disappears, so as to avoid the temperature of vacuum interrupter too high.
Further, passed as driven chain drum, the 4th transmission component and the 5th in optimal technical scheme, in addition to first
Dynamic component, the 4th transmission component include the 4th power transmission shaft and the 4th active chain drum being arranged on the 4th power transmission shaft and the
Four driven chain drums, the 4th active chain drum realize linkage by driven chain drum on chain and first；5th transmission component
Including the 5th power transmission shaft and the 5th active chain drum being arranged on the 5th power transmission shaft, the 5th active chain drum by chain with
4th driven chain drum realizes linkage, and the bracing wire and drawstring are wrapped on the 5th power transmission shaft.
, can be more preferable by driven chain drum, the 4th transmission component and the 5th transmission component in increase by first in this programme
The motion control of absorber and the control of clamping device are realized in ground, while only need by being operated to the first transmission component
A variety of operations can be realized simultaneously, such as, during combined floodgate, moving contact is moved upwards, clamping device closes, absorber is moved downward and
These three motions are affixed with static contact to carry out simultaneously；And when opening a sluice gate, moving contact is moved downward, clamping device is opened, is inhaled
Motion is carried out hot body simultaneously to contact these three motions with radiator upwards, that is to say, that only needs single stepping, i.e.,
Three effects can be obtained, while simplifying operation, preferable effect can be obtained.
Further, first tapered into as optimal technical scheme, the spacing of described two clamp bars from the bottom up, then gradually
Become big, then taper into, finally become larger again.
The invention has the advantages that：
(1) present invention makes moving contact during being upwardly between two clamp bars, no by designing clamping device
It can be touched with clamp bar, when the moment that moving contact contacts with static contact, clamp bar also closes completion just, is just stuck in dynamic/static contact
Between two clamp bars, its dynamic/static contact can not be flicked, beated, so as to serve good anti creep performance, prevent sound
In the case of contact bounce, touching in the motion process of moving contact is not caused, moving contact is avoided well and is damaged, it is ensured that
Moving contact good working order and longer service life.
(2) present invention realizes the motion more stable compared to link transmission by the cooperation between each transmission component,
Each transmission component is realized and is more accurately driven, having evaded traditional link transmission can in the presence of chain drum and chain
The clearance issues of energy appearance, matching problem, the service life of the transmission mechanism of this programme is longer, and transmission is more accurate, and switching is more
In place；Further, since insulated tension pole realizes itself in the vertical direction by the mating reaction of driving rack and master gear
Motion, the direction of motion is consistent with force direction height, so that moving conductive rod can preferably drive moving contact and static contact
Contact, separation.
(3) absorber and radiator are arranged in static conductive rod, dynamic/static contact connects by the present invention by increasing heat abstractor
When touching, absorber is close in the presence of second spring with static contact, and now, absorber is by heat caused by dynamic/static contact
Siphon away, reduce the heat on dynamic/static contact, then absorber is realized by the heat transfer of itself to radiator by radiator
The quick of heat scatters and disappears, too high and influence the fatigue strength of bellows so as to avoid high-pressure vacuum breaker temperature, it is ensured that
Bellows has longer service life, while vacuum interrupter has preferable vacuum.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the stereogram of the clamping device of the present invention；
Fig. 3 is the front view of the clamping device of the present invention；
Fig. 4 is structural representation of the clamping device of the present invention when dynamic/static contact contacts；
Fig. 5 is the structural representation figure of the transmission mechanism of the present invention；
Fig. 6 is the structural representation of the heat abstractor of the present invention；
Fig. 7 is the profile of the static conductive rod of the present invention.
It is entitled corresponding to reference in figure：1st, insulating cylinder, 2, Transmission Room, 3, vacuum interrupter, 4, upper bracket, 5, under
Support, 6, static conductive rod, 7, static contact, 8, moving contact, 9, moving conductive rod, the 10, first bellows, 11, upper wire outlet seat, 12, under
Wire outlet seat, 13, insulated tension pole, the 14, first spring, 15, driving rack, the 16, first power transmission shaft, driven chain drum under 17, first,
18th, driven chain drum on first, 19, manual chain drum, 20, motor-driven chain drum, 21, stepper motor, 22, rotational handle, the 23, second transmission
Axle, the 24, second active chain drum, the 25, second driven chain drum, the 26, the 3rd power transmission shaft, the 27, the 3rd active chain drum, 28, master gear,
29th, the 4th power transmission shaft, the 30, the 4th active chain drum, the 31, the 4th driven chain drum, the 32, the 5th power transmission shaft, the 33, the 5th active chain drum,
34th, bracing wire, 35, absorber, 36, radiator, 37, second spring, 38, blind hole, 39, perforation, the 40, second bellows, 41, folder
Bar, 42, supporting plate, the 43, the 3rd spring, the 44, the 3rd bellows, 45, drawstring.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not
It is only limitted to this.
Embodiment：
As shown in Fig. 1~7, a kind of high-pressure vacuum breaker described in the present embodiment, including insulating cylinder 1 and Transmission Room 2, absolutely
Vacuum interrupter 3 is provided with edge cylinder 1, the upper and lower end of vacuum interrupter 3 is fixed on insulation by upper bracket 4, lower carriage 5 respectively
In cylinder 1, upper bracket 4 is provided with upper wire outlet seat 11, and lower carriage 5 is provided with lower wire outlet seat 12, and upper bracket 4, lower carriage 5 are used to fix
Vacuum interrupter 3, upper wire outlet seat 11, lower wire outlet seat 12 are used for extraction wire, realize being electrically connected between wire and sound conducting rod
Connect.
Static conductive rod 6, static contact 7, moving contact 8, moving conductive rod 9, first wave are provided with the vacuum interrupter 3 of the present embodiment
Line pipe 10, the upper end of static conductive rod 6 pass vacuum interrupter 3 and are fixed on upper bracket 4, the lower end of static conductive rod 6 and stationary contact
First 7 fix and realize electrical connection, and the lower end of moving conductive rod 9 passes vacuum interrupter 3 and is fixed on lower carriage 5, moving conductive rod 9
Upper end fix and realize with moving contact 8 and electrically connect, worn on moving conductive rod 9 and be connected to the first bellows 10, the first bellows 10
One of port sealing is fixed on moving conductive rod 9, and another port and the vacuum interrupter 3 of the first bellows 10 are realized close
Sealing is determined；
The present embodiment also includes insulated tension pole 13, and the top of insulated tension pole 13 passes through first spring 14 and moving conductive rod
9 bottom connection, the first spring 14 can play certain cushioning effect to the contact with moving contact 8 of static contact 7.
The transmission mechanism for driving insulated tension pole 13 to do vertical back and forth movement is provided with the Transmission Room 2 of the present embodiment, specifically,
The transmission mechanism of the present embodiment can be realized using following structure：Transmission mechanism includes the first transmission component, the second transmission component
And the 3rd transmission component；First transmission component include the first power transmission shaft 16 and be arranged on the first power transmission shaft 16 first under
Driven chain drum 17, manual chain drum 19 and motor-driven chain drum 20；Second transmission component includes second driving shaft 23 and is arranged on the
The second active chain drum 24 and the second driven chain drum 25, the second active chain drum 24 on two power transmission shafts 23 pass through chain and first
Under driven chain drum 17 realize linkage；3rd transmission component includes the 3rd power transmission shaft 26 and be arranged on the 3rd power transmission shaft 26 the
Three active chain drums 27 and master gear 28, the 3rd active chain drum 27 are realized and linked by chain and the second driven chain drum 25；Absolutely
The bottom of edge pull bar 13 is connected with a driving rack 15 for being in vertical state, and driving rack 15 is meshed with master gear 28.
In order to prevent static contact 7 from being beated with moving contact 8 when contacting, the present embodiment is under static conductive rod 6
End sets clamping device, and clamping device includes two clamp bars, 41, two pieces of supporting plates 42 and two the 3rd springs 43, two pieces of supports
Plate 42 is symmetricly set on the both sides of static conductive rod 6, and two clamp bars 41 are fixed with two pieces of activities of supporting plate 42 respectively, two clamp bars 41
Top be connected respectively by the 3rd spring 43 with static conductive rod 6, the 3rd spring is in compressive state, two clamp bars all the time
41 top is connected to transmission mechanism by drawstring 45, and the both sides of the static conductive rod 6 further respectively have the 3rd ripple
Pipe 44, one of port and the sealing of static conductive rod 6 of the 3rd bellows 44 are fixed, and another port is fixed with drawstring 45, is drawn
Rope 45 passes through the 3rd bellows 44.Specifically, the structure of clamp bar 41 can be done following design by the present embodiment：Two clamp bars 41 are under
Spacing up first tapers into, then becomes larger, and then tapers into again, finally becomes larger, when moving contact 8 moves upwards
During, two clamp bars 41 are in the state gradually closed, and moving contact 8 is quiet to touching between two clamp bars 41
Contact 7 this period, with reference to the shape and folding speed of clamp bar 41, it can ensure that clamp bar 41 does not contact with moving contact 8 all the time, and
When the moment that moving contact 8 contacts with static contact 7, clamp bar 41 also closes completion just, and dynamic/static contact just is stuck in into two clamp bars
Between 41, dynamic/static contact can not be flicked, beated, so as to serve good anti creep performance.
Influence the fatigue strength of bellows in order to avoid high-pressure vacuum breaker temperature is too high, it is ensured that bellows have compared with
Long service life, while vacuum interrupter has preferable vacuum, in the present embodiment, in static conductive rod 6 along central axis
Direction sets through hole, and one end of through hole is sealed by static contact 7, and the other end of through hole is extended to outside vacuum interrupter 3, in the through hole
One heat abstractor is set, and heat abstractor includes absorber 35, radiator 36, second spring 37 and bracing wire 34, absorber 35
Positioned at the lower section of radiator 36, connected between absorber 35 and radiator 36 by second spring 37, second spring 37 is located all the time
In compressive state, radiator 36 is located at one end that static conductive rod 6 stretches out vacuum interrupter 3, and one end of bracing wire 34 is fixed on heat absorption
On body 35, the other end of bracing wire 34 is connected on transmission mechanism.
In order that absorber can preferably contact with static contact 7 and siphon away the heat on static contact as much as possible,
Further reduce the heat on moving contact 8, influence the service life of bellows so as to avoid the temperature of vacuum interrupter 3 too high
And absorber 35 is designed as frustum cone structure by the vacuum of vacuum interrupter 3, the present embodiment, static contact 7 is towards absorber 35
One side be provided with the recess to match with the frustum cone structure of absorber 35.
In order that absorber contacts more abundant with radiator, radiating efficiency is set to be further enhanced, the present embodiment is dissipating
Hot body 36 sets a blind hole 38 along central axial direction, and the aperture of blind hole 38 linearly reduces along aperture to bottom hole direction,
The bottom hole of blind hole 38 is provided with a perforation 39 passed through for bracing wire 34.
In order to ensure that vacuum interrupter has reliable vacuum, even if not being between static contact and static conductive rod
It is fully sealed, can also ensure that whole vacuum interrupter and outside air are completely separated, it is ensured that obtain a high vacuum
Arc extinguishing condition, the present embodiment can set the second bellows 40, one of port of the second bellows 40 on radiator 36
Docked with the sealing of perforation 39, another port is fixed with bracing wire sealing.
Preferably, the absorber 35 of the present embodiment is made of copper, radiator 36, which is adopted, to be formed from aluminium.
In order to facilitate operation, and simplify operation, the present embodiment also include driven chain drum 18 on first, the 4th transmission component with
And the 5th transmission component, the 4th transmission component include the 4th power transmission shaft 29 and be arranged on the 4th power transmission shaft 29 the 4th actively
30 and the 4th driven chain drum 31 of chain drum, the 4th active chain drum 30 realize linkage by driven chain drum 18 on chain and first；
5th transmission component includes the 5th power transmission shaft 32 and the 5th active chain drum 33 being arranged on the 5th power transmission shaft 32, described
5th active chain drum 33 realizes linkage by chain and the 4th driven chain drum 31, and bracing wire 34 and drawstring 45 are wrapped in the 5th transmission
On axle 32.
Illustrated with reference to the operation principle of Fig. 1~7 pair the present embodiment：During combined floodgate, make stepper motor 21 or rotate hand
Handle 22 rotates counterclockwise, and master gear 28, the 5th power transmission shaft 32 rotate counterclockwise, and master gear 28 drives driving rack 15 to transport upwards
It is dynamic, and then moving conductive rod 9 moves upwards and moving contact 8 is contacted with static contact 6, realizes and closes a floodgate, another side, the 5th power transmission shaft 32
Rotate counterclockwise and drive bracing wire 34, the unwrapping wire of drawstring 45, absorber 35 transfers to the position being in contact with static contact 7, clamp bar 41
Close and clamp moving contact 8；During separating brake, rotate clockwise stepper motor 21 or rotational handle 22, master gear the 28, the 5th passes
Moving axis 32 rotates clockwise, and master gear 28 drives driving rack 15 to move downward, and then moving conductive rod 9 is moved downward and made
Contact 8 separates with static contact 6, realizes separating brake, another side, and rotating clockwise for the 5th power transmission shaft 32 drives bracing wire 34, drawstring 45
Take-up, absorber 35 separate and moved to the position contacted with radiator 36 with static contact 7, realize quick heat radiating, and clamp bar 41 expands
Open, moving contact 8 is easily passed through.
The present invention is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is only intended to
Citing and the purpose of explanation, and be not intended to limit the invention in described scope of embodiments.In addition, people in the art
Member can also make more kinds of it is understood that the invention is not limited in above-described embodiment according to the teachings of the present invention
Variants and modifications, these variants and modifications are all fallen within scope of the present invention.
Claims (9)
- A kind of 1. high-pressure vacuum breaker, it is characterised in that：Including insulating cylinder (1) and Transmission Room (2), in the insulating cylinder (1) Provided with vacuum interrupter (3), the upper and lower end of vacuum interrupter (3) is fixed on insulation by upper bracket (4), lower carriage (5) respectively In cylinder (1), the upper bracket (4) is provided with upper wire outlet seat (11), and the lower carriage (5) is provided with lower wire outlet seat (12)；Static conductive rod (6), static contact (7), moving contact (8), moving conductive rod (9), first wave are provided with the vacuum interrupter (3) Line pipe (10), the upper end of the static conductive rod (6) pass vacuum interrupter (3) and are fixed on upper bracket (4), static conductive rod (6) lower end is fixed and realized with static contact (7) and electrically connects, and the lower end of the moving conductive rod (9) passes vacuum interrupter (3) simultaneously It is fixed on lower carriage (5), the upper end of moving conductive rod (9), which is fixed and realized with moving contact (8), to be electrically connected, the moving conductive rod (9) worn on and be connected to the first bellows (10), one of port sealing of first bellows (10) is fixed on moving conductive rod (9) on, another port and the vacuum interrupter (3) of the first bellows (10) realize that sealing is fixed；Also include insulated tension pole (13), the top of the insulated tension pole (13) passes through first spring (14) and moving conductive rod (9) bottom connection；The transmission mechanism for driving insulated tension pole (13) to do vertical back and forth movement is provided with the Transmission Room (2)；The lower end of the static conductive rod (6) is additionally provided with clamping device, and the clamping device includes two clamp bars (41), two pieces of supports Plate (42) and two the 3rd springs (43), two pieces of supporting plates (42) are symmetricly set on the both sides of static conductive rod (6), two clamp bars (41) it is fixed with the activity of two pieces of supporting plates (42) respectively, the top of two clamp bars (41) respectively by the 3rd spring (43) with Static conductive rod (6) is connected, and the 3rd spring is in compressive state all the time, and the top of two clamp bars (41) is connected by drawstring (45) To transmission mechanism, the both sides of the static conductive rod (6) further respectively have the 3rd bellows (44), the 3rd bellows (44) One of port is fixed with static conductive rod (6) sealing, and another port is fixed with drawstring (45), and drawstring (45) passes through the 3rd ripple Line pipe (44).
- A kind of 2. high-pressure vacuum breaker according to claim 1, it is characterised in that：The transmission mechanism includes first and passed Dynamic component, the second transmission component and the 3rd transmission component；First transmission component include the first power transmission shaft (16) and be arranged on the first power transmission shaft (16) first under it is driven Chain drum (17), manual chain drum (19) and motor-driven chain drum (20)；Second transmission component includes second driving shaft (23) and the second drive chain being arranged on second driving shaft (23) Disk (24) and the second driven chain drum (25), the second active chain drum (24) are realized by driven chain drum (17) under chain and first Linkage；3rd transmission component includes the 3rd power transmission shaft (26) and the 3rd drive chain being arranged on the 3rd power transmission shaft (26) Disk (27) and master gear (28), the 3rd active chain drum (27) are realized and linked by chain and the second driven chain drum (25)；The bottom of the insulated tension pole (13) is connected with a driving rack (15) for being in vertical state, driving rack (15) and main tooth Wheel (28) is meshed.
- A kind of 3. high-pressure vacuum breaker according to claim 2, it is characterised in that：The static conductive rod (6) is along center Axis direction is provided with through hole, and one end of through hole is sealed by static contact (7), and the other end of through hole extends to vacuum interrupter (3) outside, Be provided with a heat abstractor in the through hole, the heat abstractor including absorber (35), radiator (36), second spring (37) with And bracing wire (34), absorber (35) are located at the lower section of radiator (36), pass through second between absorber (35) and radiator (36) Spring (37) connects, and second spring (37) is in compressive state all the time, and radiator (36) is located at static conductive rod (6) stretching vacuum and gone out One end of arc chamber (3), one end of bracing wire (34) are fixed on absorber (35), and the other end of bracing wire (34) is connected to transmission mechanism On.
- A kind of 4. high-pressure vacuum breaker according to claim 3, it is characterised in that：The absorber (35) is round platform knot Structure, the one side of static contact (7) towards absorber (35) are provided with the recess to match with the frustum cone structure of absorber (35).
- A kind of 5. high-pressure vacuum breaker according to claim 3, it is characterised in that：The radiator (36) is along central shaft Line direction is provided with a blind hole (38), and the aperture of blind hole (38) linearly reduces along aperture to bottom hole direction, blind hole (38) Bottom hole is provided with a perforation (39) passed through for bracing wire (34).
- A kind of 6. high-pressure vacuum breaker according to claim 5, it is characterised in that：The radiator (36) is provided with the Two bellowss (40), one of port of second bellows (40) docks with perforation (39) sealing, another port and Bracing wire sealing is fixed.
- A kind of 7. high-pressure vacuum breaker according to any one of claim 3~6, it is characterised in that：The absorber (35) it is made of copper, radiator (36), which is adopted, to be formed from aluminium.
- A kind of 8. high-pressure vacuum breaker according to claim 7, it is characterised in that：Also include driven chain drum on first (18), the 4th transmission component and the 5th transmission component, the 4th transmission component include the 4th power transmission shaft (29) and set The 4th active chain drum (30) and the 4th driven chain drum (31) on the 4th power transmission shaft (29), the 4th active chain drum (30) are logical Cross driven chain drum (18) on chain and first and realize linkage；5th transmission component includes the 5th power transmission shaft (32) and set The 5th active chain drum (33) on the 5th power transmission shaft (32), the 5th active chain drum (33) pass through chain and the 4th driven chain Disk (31) realizes linkage, and the bracing wire (34) and drawstring (45) are wrapped on the 5th power transmission shaft (32).
- A kind of 9. high-pressure vacuum breaker according to claim 1, it is characterised in that：Described two clamp bars (41) are from lower past On spacing first taper into, then become larger, then taper into, finally become larger again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026788.9A CN106531545B (en) | 2016-11-15 | 2016-11-15 | A kind of high-pressure vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611026788.9A CN106531545B (en) | 2016-11-15 | 2016-11-15 | A kind of high-pressure vacuum breaker |
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| Publication Number | Publication Date |
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| CN106531545A CN106531545A (en) | 2017-03-22 |
| CN106531545B true CN106531545B (en) | 2018-03-13 |
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| CN201611026788.9A Expired - Fee Related CN106531545B (en) | 2016-11-15 | 2016-11-15 | A kind of high-pressure vacuum breaker |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107863281A (en) * | 2017-12-07 | 2018-03-30 | 厦门安达兴电气集团有限公司 | A kind of rotary type links double acting contact mechanism and switch disconnector |
| CN110649508B (en) * | 2019-10-23 | 2024-09-13 | 国网辽宁省电力有限公司辽阳供电公司 | Electrified arc extinction is branch closes ware for drainage |
| CN113433350B (en) * | 2020-03-23 | 2024-03-08 | 西安高压电器研究院股份有限公司 | Explosion chamber opening adjustment frock |
| CN113035633B (en) * | 2021-03-11 | 2023-06-20 | 扶余市成瑞风能有限公司 | Hybrid high-voltage direct-current bidirectional circuit breaker |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH515603A (en) * | 1969-09-18 | 1971-11-15 | Siemens Ag | Low-liquid circuit breaker |
| CN102545088B (en) * | 2012-01-04 | 2014-09-10 | 苏州朗格电气有限公司 | Nitrogen ring main unit |
| CN203774171U (en) * | 2014-03-25 | 2014-08-13 | 孝感汉光森源电气有限责任公司 | Switching-on mechanism of vacuum circuit breaker |
| DE102014213100A1 (en) * | 2014-07-07 | 2016-01-07 | Siemens Aktiengesellschaft | Electrical component with an electrically conductive central component |
| CN203966963U (en) * | 2014-08-02 | 2014-11-26 | 浙江沈高所电气有限公司 | A kind of quick acting switching-off structure of vacuum circuit-breaker |
| CN204680608U (en) * | 2015-05-28 | 2015-09-30 | 宁波长和电器有限公司 | A kind of rotary arc extinguishing vacuum circuit-breaker |
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