CN106531545A - High-voltage vacuum circuit breaker - Google Patents
High-voltage vacuum circuit breaker Download PDFInfo
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- CN106531545A CN106531545A CN201611026788.9A CN201611026788A CN106531545A CN 106531545 A CN106531545 A CN 106531545A CN 201611026788 A CN201611026788 A CN 201611026788A CN 106531545 A CN106531545 A CN 106531545A
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- conductive rod
- chain drum
- static
- contact
- absorber
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- 230000003068 static effect Effects 0.000 claims abstract description 101
- 230000005540 biological transmission Effects 0.000 claims abstract description 94
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000033001 locomotion Effects 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 239000006096 absorbing agent Substances 0.000 claims description 41
- 238000007789 sealing Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 8
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 208000031481 Pathologic Constriction Diseases 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 210000001215 vagina Anatomy 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 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
- 230000009471 action Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 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
- 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
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- 238000010338 mechanical breakdown Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000630 rising effect Effects 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 high-voltage vacuum circuit breaker. The high-voltage vacuum circuit breaker comprises an insulation cylinder and a transmission chamber, wherein a vacuum arc extinguishing chamber is arranged in the insulation cylinder, an upper end and a lower end of the vacuum arc extinguishing chamber are respectively fixed in the insulation cylinder by an upper support and a lower support, the high-voltage vacuum circuit breaker also comprises an insulation pull rod, a top end of the insulation pull rod is connected with a bottom end of a movable conductive rod by a first spring, a transmission mechanism is arranged in the transmission chamber and drives the insulation pull rod to do vertical motion in a reciprocating way, a clamping device is further arranged at a lower end of a static conductive rod and comprises two clamping strips, two support plates and two third springs, the two support plates are symmetrically arranged at two sides of the static conductive rod, the two clamping strips are respectively and movably fixed with the two support plates, and upper parts of the two clamping strips are connected with the static conductive rod respectively by one of the third springs. With the adoption of structure, a movable contact and a static contact are prevented from bouncing when the movable contact and the static contact are in contact, the service lifetime of a corrugated pipe is prolonged, and the vacuum degree of the arc extinguishing chamber is enabled not to be affected.
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, because the dielectric in its arc-extinguishing medium and arcing contact gap is all vacuum and gains the name, its
Have the advantages that small volume, it is lightweight, suitable for frequent operation, arc extinguishing without maintenance, using more popularizing in power distribution network, very
Empty chopper is 3～10kV, and the indoor distribution in 50Hz three-phase alternating current systems is available for industrial and mining establishment, power plant, transformer station
Middle protection and control as electric equipment is used, and is particularly well-suited to require the use field of non-oil ultra high vacuum system, few maintenance and frequent operation
Institute, chopper are used as control and protection high voltage electric equipment in being configurable on middle-placed switch cabinet, double-layer cabinet, fixed cabinet.
High-pressure vacuum breaker generally comprise support, vacuum interrupter, galvanic circle, drive mechanism, insulating supporting and
Operating mechanism, support are used for installing each functional unit, and vacuum interrupter is used for extinguishing contact and is closing and producing when cut-offfing
Electric arc, galvanic circle connect and compose current channel for the moved end and static side with vacuum interrupter, and drive mechanism is for actuating
The motion of mechanism is transmitted to vacuum interrupter, is realized closing, is opened a sluice gate, and insulating supporting is for each function element bridge joint is got up with full
Sufficient insulating requirements, operating mechanism are the Power Drive Units for realizing chopper division.
At present, either split type or combined, high-pressure vacuum breaker at most by it is hundreds of mechanically and electrically
Element is constituted, and the Finish ＆ Workmanship defect of each parts, the link occlusion that cooperates will directly affect high pressure vacuum
The mechanical property of chopper.Such as, the high-pressure vacuum breaker of currently the majority adopts connecting rod as drive mechanism, and main connecting lever
The spindle nose gap of connection can become big with the increase of use time, and after operating mechanism makes action, its power can not be real
When ground reflection on drive mechanism, i.e., the contact in vacuum extinction room can not be driven, so can not realize chopper point
Closing operation, causes to occur refusing to close, refuse a point failure, and the time between overhauls(TBO) of chopper and service life accordingly shorten.
In addition, the transmission displacement problem occurred along with drive mechanism, or bounce mechanically, or stress is not
, then or Impact direction skew, may all cause contact occur when contacting with each other bounce, between dynamic/static contact between
The suddenly change of gap will certainly cause contact resistance acutely increase and the rapid rising of temperature, the load of vacuum interrupter substantially to carry
Height, is unfavorable for that chopper is chronically at steady-working state, while can also shorten the service life of chopper.
Further, the loop resistance of high-pressure vacuum breaker is the main heating source for affecting temperature rise, and the loop resistance of arc-chutes
More than the 50% of high-pressure vacuum breaker loop resistance will generally be accounted for.Contact gap contact resistance is vacuum interrupter loop resistance
Key component because contact system is sealed in vacuum extinction room, in order to ensure vacuum, the heat of generation 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 affect the fatigue strength of vacuum interrupter inner corrugated pipe, cause ripple
The service life of pipe shortens, and then affects 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 for causing the switching of chopper impacted, in addition dynamic/static contact be susceptible to bounce in contact, lead
Contact resistance increase, temperature is caused to raise, the load of vacuum interrupter is increased, the problem for causing chopper service life to shorten.
The present invention can also solve vacuum interrupter temperature drift, cause the fatigue strength of corrugated tube impacted, and then cause
The service life of corrugated tube shorten and arc-chutes the impacted problem of vacuum.
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, is provided with vacuum interrupter, vacuum in the insulating cylinder
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 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 corrugated tube is 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 passes vacuum interrupter and is fixed on lower carriage, the upper end of moving conductive rod and moving contact
Electrical connection is fixed and realized, is worn on the moving conductive rod and is connected to the first corrugated tube, one of port of first corrugated tube
Sealing is fixed on moving conductive rod, and another port and the vacuum interrupter of the first corrugated tube 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 interior is provided with the drive mechanism for driving insulated tension pole to do vertical back and forth movement；
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 gripper shoes
And two the 3rd springs, two pieces of gripper shoes are symmetricly set on the both sides of static conductive rod, two clamp bars respectively with two pieces of gripper shoes
Activity is fixed, and the top of two clamp bars is connected with static conductive rod by the 3rd spring respectively, and the 3rd spring is all the time in pressure
Contracting state, the top of two clamp bars are connected to drive mechanism by drawstring, and the both sides of the static conductive rod further respectively have one
Individual 3rd corrugated tube, one of port and the static conductive rod sealing of the 3rd corrugated tube are fixed, and another port is fixed with drawstring,
Drawstring passes through the 3rd corrugated tube.
In this programme, the present invention solves two problems, and first is transmission problem, traditional high-pressure vacuum breaker
Substantially the mode of link transmission is used, this mode is although easy to operate and realizes, but there is obvious, connecting rod biography
The Impact direction of dynamic last output 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
To there is a skew, such insulated tension pole can also exist certain inclined Nogata by the power that the first spring applies to moving conductive rod
Move, can cause insulated tension pole that dynamic/static contact more can not be allowed in place to realize preferably contact and separate in the course of time, especially when
When deviation occurs in operating mechanism (cam, motor), then easily there is switching situation not in place in this when, make chopper without
Method realizes due function.For this purpose, this programme realizes that using a drive mechanism insulated tension pole does vertical back and forth movement, and not
It is the motion of near vertical, can be so able to ensure that insulated tension pole acts on the direction of the power on the first spring and insulated tension pole
The direction of motion be consistent, there is no deviation, so as to be dynamic/static contact switching operate more in place, largely avoid
Operating mechanism (cam, motor) is even if the situation that switching does not occur yet in action occurs.This programme solve another
Problem is the problem for occurring beating when dynamic/static contact is contacted, and due to due to machine driving, dynamic/static contact inevitably goes out
The problem for occurring in a flash flicking, beating for now contacting, existing method can only reduce that bounce amplitude as much as possible and become
Gesture, fundamentally can not solve.For this purpose, this programme increased a clamping device, and clamping device is carried out ingenious
Ground design, two clamp bars are in the trend being harmonious all the time, realize expanding for clamp bar distance by drawstring, and clamping device has one
Ingenious part is that moving contact will not be touched with clamp bar during being upwardly between two clamp bars, specific to show
Form is, during moving contact is moved upwards, state of two clamp bars in gradually closing, moving contact are being located at two
To static contact this period is touched between clamp bar, with reference to the shape and folding speed of clamp bar, clamp bar and dynamic is ensure that all the time
Contact is not contacted, and works as the moment that moving contact is contacted with static contact, and clamp bar is also closed just and completed, and is just stuck in dynamic/static contact
Between two clamp bars, dynamic/static contact flicked, beated, so as to serve good anti creep performance.In the same manner, need separating brake
When, clamp bar is opened by the pulling force effect of drawstring, and during opening, moving contact moves downward and gradually leave 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 motor process of moving contact is not caused, avoid moving contact well and be damaged, really
Moving contact good working order and longer service life are protected.
Further, as optimal technical scheme, the drive 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 passes through chain and the second driven chain drum realizes linkage；
The bottom of the insulated tension pole is connected with a driving rack 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, by each transmission component
Between cooperation, realize and compare the more stable motion of 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 drive mechanism is longer, and more precisely, switching is more in place for transmission.Further, since insulated tension pole passes through driving rack
Realizing the motion of itself in the vertical direction, the direction of motion is consistent with force direction height for mating reaction with master gear,
So that moving conductive rod can preferably drive moving contact to contact with static contact, separate.Further, since this programme using chain drum come
Control transmission, therefore, it is possible to more be accurately controlled the moving displacement of moving conductive rod, and for comparing link transmission mode, deviation
It is less.In addition, it is necessary to illustrate, manual chain drum realizes control manually by the structure of outside turning handle or bull stick etc
Switching, and motor-driven chain drum can be linked with the rotary shaft of motor, so as to realize automatically controlling, this and traditional high pressure vacuum
The control mode of chopper is the same, by automatically controlling and control manually.
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, is provided with a heat abstractor in 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 by second spring between body, second spring is in compressive state all the time, radiator stretches out vacuum positioned at static conductive rod and goes 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 drive 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, although moving conductive rod is seemed and is conducive to radiating, but moving conductive rod connecting link is relatively more, and thermally conductive pathways
Longer, radiating effect is not also good.For this purpose, this programme devises a kind of new heat abstractor, absorber is arranged on radiator
In static conductive rod, when dynamic/static contact is contacted, absorber is close to static contact in the presence of second spring, now, heat absorption
The heat that dynamic/static contact is produced is siphoned away by body, 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 is scattered and disappeared, so as to avoid that high-pressure vacuum breaker temperature is too high and shadow
Ring the fatigue strength of corrugated tube, it is ensured that corrugated tube has longer service life, while vacuum interrupter has preferable vacuum
Degree.
Further, as optimal technical scheme, the absorber be frustum cone structure, one side of the static contact towards absorber
It is provided with the recess matched with the frustum cone structure of absorber.After recess is set on the static contact, enable absorber preferably with
Static contact is contacted 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 affect the vacuum of the service life of corrugated tube and 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
Structure of the body for round platform, after the structure design of blind hole to be adapted with the structure of absorber, can make absorber and radiating
Body contact more fully, makes radiating efficiency be further enhanced.
Further, as optimal technical scheme, the radiator is provided with the second corrugated tube, second corrugated tube
One of port is docked with aperture seal, and another port is fixed with bracing wire sealing.After increased the second corrugated tube, can
Guarantee that vacuum interrupter has reliable vacuum, even if not being to fully seal between static contact and static conductive rod, it is also possible to
Guarantee that whole vacuum interrupter is completely separated with outside air, it is ensured that obtain the arc extinguishing condition of a high vacuum.
Further, as optimal technical scheme, the absorber is made of copper, and radiator is adopted and is formed from aluminium.Copper has
There is stronger heat absorption capacity, and aluminum has stronger heat-sinking capability, copper absorber can relatively rapid from static contact
Siphon away substantial amounts of heat, then lead to peraluminous radiator carry out heat scatter and disappear, so as to avoid the temperature of vacuum interrupter too high.
Further, as optimal technical scheme, also pass including driven chain drum, the 4th transmission component and the 5th on first
Dynamic component, the 4th active chain drum and that the 4th transmission component includes the 4th power transmission shaft and is arranged on the 4th power transmission shaft
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 that linkage, the bracing wire and drawstring are wrapped on the 5th power transmission shaft.
In this programme, by increasing driven chain drum, the 4th transmission component and the 5th transmission component on first, can be more preferable
Realize absorber motor control and clamping device control, while only needing to by operating to the first transmission component
Various operations are realized simultaneously can, such as, during combined floodgate, moving contact is moved upwards, clamping device is closed, absorber is moved downward and
These three motions are affixed while carrying out with static contact；And when opening a sluice gate, moving contact is moved downward, clamping device is opened, inhale
Hot body moves to contact these three motions with radiator while carrying out upwards, that is to say, that, it is only necessary to single stepping, i.e.,
Three effects can be obtained, while simplifying operation, preferable effect is obtained in that.
Further, as optimal technical scheme, described two clamp bars spacing from the bottom up is first tapered into, then gradually
Become big, then taper into again, finally become larger.
The invention has the advantages that：
(1) present invention makes moving contact during being upwardly between two clamp bars, no by designing clamping device
Can touch with clamp bar, when the moment that moving contact is contacted with static contact, clamp bar is also closed just and completed, is just stuck in dynamic/static contact
Between two clamp bars so as to which dynamic/static contact cannot flick, beat, so as to serve good anti creep performance, sound is being prevented
In the case of contact bounce, touching in the motor process of moving contact is not caused, avoids moving contact well and be damaged, it is ensured that
Moving contact good working order and longer service life.
(2) present invention is realized and compares the more stable motion of link transmission by the cooperation between each transmission component,
Each transmission component in the presence of chain drum with chain is realized and is more accurately driven, and having evaded traditional link transmission can
The clearance issues of energy appearance, matching problem, the service life of the drive mechanism of this programme are longer, and more precisely, switching is more for transmission
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 is arranged in static conductive rod with radiator by the present invention by increasing heat abstractor, and dynamic/static contact connects
When tactile, absorber is close to static contact in the presence of second spring, now, the heat that dynamic/static contact is produced by absorber
Siphon away, reduce the heat on dynamic/static contact, then absorber is realized by radiator by the heat transfer of itself to radiator
The quick of heat scatters and disappears, too high and affect the fatigue strength of corrugated tube so as to avoid high-pressure vacuum breaker temperature, it is ensured that
Corrugated tube has longer service life, while vacuum interrupter has preferable vacuum.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the axonometric chart 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 is contacted；
Fig. 5 is the structural representation figure of the drive 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.
In figure, reference is corresponding entitled：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 corrugated tube, 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, motor, 22, rotate 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 corrugated tube, 41, folder
Bar, 42, gripper shoe, the 43, the 3rd spring, the 44, the 3rd corrugated tube, 45, drawstring.
Specific 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, and 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 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 for fixing
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 5 of the present embodiment
Stricture of vagina 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
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 with moving contact 8 and realize electrically connecting, wear on moving conductive rod 9 and be connected to the first corrugated tube 10, the first corrugated tube 10
One of port sealing is fixed on moving conductive rod 9, and another port and the vacuum interrupter 3 of the first corrugated tube 10 are realized close
Sealing is fixed；
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 drive 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 drive mechanism of the present embodiment can be realized using following structure：Drive 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 second active chain drum 24 and the second driven chain drum 25 on two power transmission shafts 23, the second active chain drum 24 pass through chain and first
Under driven chain drum 17 realize linkage；3rd transmission component include the 3rd power transmission shaft 26 and be arranged on the 3rd power transmission shaft 26
Three active chain drums 27 and master gear 28, the 3rd active chain drum 27 passes through chain and the second driven chain drum 25 realizes linkage；Absolutely
The bottom of edge pull bar 13 is connected with a driving rack 15 in vertical state, and driving rack 15 is meshed with master gear 28.
There is bounce when contacting to prevent static contact 7 and moving contact 8, the present embodiment is under static conductive rod 6
End arranges clamping device, and clamping device includes two clamp bars, 41, two pieces of gripper shoes 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 gripper shoes, 42 activity respectively, two clamp bars 41
Top be connected with static conductive rod 6 by the 3rd spring 43 respectively, the 3rd spring all the time be in compressive state, two clamp bars
41 top is connected to drive 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 corrugated tube 44 are fixed, and another port is fixed with drawstring 45, draws
Rope 45 passes through the 3rd corrugated tube 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 is first tapered into, then is become larger, and is then tapered into again, is finally become larger, when moving contact 8 is moved upwards
During, the state of two clamp bars 41 in gradually closing, moving contact 8 be located at it is quiet to touching between two clamp bars 41
7 this period of contact, with reference to the shape and folding speed of clamp bar 41, ensure that clamp bar 41 is not contacted with moving contact 8 all the time, and
When the moment that moving contact 8 is contacted with static contact 7, clamp bar 41 is also closed just and is completed, and dynamic/static contact is stuck in two clamp bars just
Between 41, dynamic/static contact flicked, beated, so as to serve good anti creep performance.
In order to avoid high-pressure vacuum breaker temperature it is too high and affect corrugated tube fatigue strength, it is ensured that corrugated tube with compared with
Long service life, while vacuum interrupter has preferable vacuum, in the present embodiment, in static conductive rod 6 along central axis
Direction arranges 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
Connected by second spring 37 between the lower section of radiator 36, absorber 35 and radiator 36, 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 drive mechanism.
In order that absorber preferably can contact and siphon away as much as possible the heat on static contact with static contact 7,
Further reduce the heat on moving contact 8, the service life of corrugated tube is affected so as to avoid the temperature of vacuum interrupter 3 too high
And the vacuum of vacuum interrupter 3, absorber 35 is designed as frustum cone structure by the present embodiment, and static contact 7 is towards absorber 35
One side be provided with the recess matched with the frustum cone structure of absorber 35.
In order that absorber is contacted with radiator more fully, radiating efficiency is made to be further enhanced, the present embodiment is dissipating
Hot body 36 arranges 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 guarantee that vacuum interrupter has reliable vacuum, even if between static contact and static conductive rod not being
Fully seal, it is also possible to guarantee that whole vacuum interrupter is completely separated with outside air, it is ensured that obtain a high vacuum
Arc extinguishing condition, the present embodiment can arrange the second corrugated tube 40, one of port of the second corrugated tube 40 on radiator 36
Dock with 39 sealing of perforation, another port is fixed with bracing wire sealing.
Preferably, the absorber 35 of the present embodiment is made of copper, radiator 36 is adopted and is formed from aluminium.
Operate for convenience, and simplify operation, the present embodiment also including driven chain drum 18, the 4th transmission component on first 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
Chain drum 30 and the 4th driven chain drum 31, the 4th active chain drum 30 realize linkage by driven chain drum 18 on chain and first；
The 5th active chain drum 33 that 5th transmission component includes the 5th power transmission shaft 32 and is arranged on the 5th power transmission shaft 32, it is described
5th active chain drum 33 passes through chain and the 4th driven chain drum 31 realizes that linkage, bracing wire 34 and drawstring 45 are wrapped in the 5th transmission
On axle 32.
Illustrate with reference to the operation principle of Fig. 1～7 pair the present embodiment：During combined floodgate, make motor 21 or rotate handss
Handle 22 is rotated counterclockwise, and master gear 28, the 5th power transmission shaft 32 are rotated counterclockwise, and master gear 28 drives driving rack 15 to transport upwards
Move, and then moving conductive rod 9 is moved upwards and moving contact 8 is contacted with static contact 6, realize closing a floodgate, another side, the 5th power transmission shaft 32
Rotate counterclockwise drive bracing wire 34,45 unwrapping wire of drawstring, absorber 35 transfers to the position contacted with static contact 7, clamp bar 41
Close and moving contact 8 is clamped；During separating brake, make motor 21 or rotate handle 22 to rotate clockwise, master gear the 28, the 5th is passed
Moving axis 32 is rotated 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 is separated with static contact 6, realizes separating brake, and another side, rotating clockwise for the 5th power transmission shaft 32 drive bracing wire 34, drawstring 45
Take-up, absorber 35 separate and move to the position that contacts 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 descriptive purpose, and be not intended to limit the invention in described scope of embodiments.Additionally, people in the art
Member is it is understood that the invention is not limited in above-described embodiment, teaching of the invention can also be made more kinds of
Variants and modifications, within these variants and modifications all fall within scope of the present invention.
Claims (9)
1. a kind of high-pressure vacuum breaker, it is characterised in that：Including in insulating cylinder (1) and Transmission Room (2), insulating cylinder (1)
Vacuum interrupter (3) is provided with, 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) are provided with wire outlet seat (11), and lower carriage (5) are 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 vacuum interrupter (5)
Stricture of vagina pipe (10), the upper end of static conductive rod (6) pass vacuum interrupter (3) and are fixed on upper bracket (4), static conductive rod
(6) lower end and static contact (7) are fixed and realize electrically connecting, the lower end of moving conductive rod (9) pass vacuum interrupter (3) and
It is fixed on lower carriage (5), the upper end of moving conductive rod (9) is fixed with moving contact (8) and realizes electrically connecting, the moving conductive rod
(9) wear on and be connected to the first corrugated tube (10), one of port sealing of the first corrugated tube (10) is fixed on moving conductive rod
(9), on, another port and the vacuum interrupter (3) of the first corrugated tube (10) realize that sealing is fixed；
Also include insulated tension pole (13), the top of insulated tension pole (13) passes through first spring (14) and moving conductive rod
(9) bottom connection；
The drive mechanism for driving insulated tension pole (13) to do vertical back and forth movement is provided with Transmission Room (2)；
The lower end of 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 gripper shoes (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 gripper shoes (42) respectively, the top of two clamp bars (41) respectively by the 3rd spring (43) with
Static conductive rod (6) connects, 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 drive mechanism, the both sides of static conductive rod (6) further respectively have the 3rd corrugated tube (44), the 3rd corrugated tube (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
Stricture of vagina pipe (44).
2. a kind of high-pressure vacuum breaker according to claim 1, it is characterised in that：The drive mechanism includes the first biography
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)；
The second drive chain that second transmission component includes second driving shaft (23) and is arranged on second driving shaft (23)
Disk (24) and second driven chain drum (25), described second active chain drum (24) are realized by driven chain drum (17) under chain and first
Linkage；
The 3rd drive chain that 3rd transmission component includes the 3rd power transmission shaft (26) and is arranged on the 3rd power transmission shaft (26)
Disk (27) and master gear (28), the 3rd active chain drum (27) passes through chain and linkage is realized in second driven chain drum (25)；
The bottom of insulated tension pole (13) is connected with a driving rack (15) in vertical state, driving rack (15) and main tooth
Wheel (28) is meshed.
3. a kind of high-pressure vacuum breaker according to claim 2, it is characterised in that：Static conductive rod (6) are 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) outward,
Be provided with a heat abstractor in the through hole, the heat abstractor include absorber (35), radiator (36), second spring (37) with
And bracing wire (34), absorber (35) is located at the lower section of radiator (36), by second between absorber (35) and radiator (36)
Spring (37) connects, and second spring (37) is in compressive state all the time, and radiator (36) stretches out vacuum positioned at static conductive rod (6) and goes 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 drive mechanism
On.
4. a kind of high-pressure vacuum breaker according to claim 3, it is characterised in that：Described absorber (35) are tied for round platform
Structure, static contact (7) are provided with the recess matched with the frustum cone structure of absorber (35) towards the one side of absorber (35).
5. a kind of high-pressure vacuum breaker according to claim 3, it is characterised in that：Radiator (36) are 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).
6. a kind of high-pressure vacuum breaker according to claim 5, it is characterised in that：Radiator (36) are provided with
Two corrugated tubes (40), one of port of the second corrugated tube (40) docks with perforation (39) sealing, another port and
Bracing wire sealing is fixed.
7. a kind of 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) is adopted and is formed from aluminium.
8. a kind of 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 arrange
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) lead to
Cross driven chain drum (18) on chain and first and realize linkage；5th transmission component includes the 5th power transmission shaft (32) and arranges
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 bracing wire (34) and drawstring (45) are wrapped on the 5th power transmission shaft (32).
9. a kind of high-pressure vacuum breaker according to claim 1, it is characterised in that：Described two clamp bar (41) are from lower past
On spacing first taper into, then become larger, then taper into again, finally become larger.
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 |
Publications (2)
| Publication Number | Publication Date |
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| CN106531545A true CN106531545A (en) | 2017-03-22 |
| CN106531545B CN106531545B (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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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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| 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 |
| CN113035633A (en) * | 2021-03-11 | 2021-06-25 | 丁再良 | Hybrid high-voltage direct-current bidirectional circuit breaker |
| CN113433350A (en) * | 2020-03-23 | 2021-09-24 | 西安高压电器研究院有限责任公司 | Arc extinguish chamber open distance adjusting tool |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106531545B (en) | 2018-03-13 |
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