CN107749369A - A kind of high pressure is without vacuum circuit breaker of restriking - Google Patents
A kind of high pressure is without vacuum circuit breaker of restriking Download PDFInfo
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- CN107749369A CN107749369A CN201711236401.7A CN201711236401A CN107749369A CN 107749369 A CN107749369 A CN 107749369A CN 201711236401 A CN201711236401 A CN 201711236401A CN 107749369 A CN107749369 A CN 107749369A
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- Prior art keywords
- spring
- main shaft
- energy
- circuit breaker
- vacuum circuit
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- 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
Abstract
The invention discloses a kind of high pressure without vacuum circuit breaker of restriking, optimal arc extinguishing was opened away from the corresponding time when mainly solving that present in prior art separating brake can not be extended, and divide-shut brake power output is low, and main shaft has the problem of swing, bending etc. in rotary course.The vacuum circuit breaker includes support frame, installation pedestal, operating mechanism, magnetosheath pipe, contact, insulated tension pole and vacuum interrupter.Wherein, operating mechanism includes operating mechanism box, main shaft, reduction box, energy storage motor, tripping spring, combined floodgate energy storage bar, the first switching-in spring, auxiliary switch, opening button, switch knob, energy storage instruction unit, energy absorption stopping means, overshoot spacer, energy storage position limit arm, separating brake system, combined floodgate system, the first combined floodgate energy-storage crank arm, closing coil, switching winding, arrangements for speed regulation, spring bearing, the second combined floodgate energy-storage crank arm and the second switching-in spring again.The present invention has the advantages that simple in construction, output power, deceleration is reliable, arc extinction performance is excellent.
Description
Technical field
The present invention relates to vacuum circuit breaker technical field, especially a kind of high pressure is without vacuum circuit breaker of restriking.
Background technology
Vacuum circuit breaker is to be used for the electric device that electric loop cut-offs/closed in distribution network, when electric loop occurs
During failure, can fast and accurately disengagement failure loop, ensure power circuit safe and stable operation.Vacuum circuit breaker mainly includes drawing
Line end, vacuum interrupter, magnetosheath pipe, operating mechanism, support frame, installation pedestal.Wherein, operating mechanism include operating mechanism box,
It is energy storage motor, main shaft, decelerator, tripping spring, switching-in spring, switching winding, closing coil, separating brake system, combined floodgate system, auxiliary
Help switch, opening button, switch knob, main shaft gangbar etc..In vacuum circuit breaker separating brake, wink of the dynamic and static contact in separation
Between, certain point that current constriction to contact has just separated or certain some on, showing as resistance between electrode, acutely increase and temperature are rapid
Improve, until the evaporation of electrode metal occurs, while form high electric-field intensity, cause violent field emission and gap
Breakdown, generates vacuum arc, when operating current is close to zero, and meanwhile the increase of contact spacing, the plasma of vacuum arc
Spread quickly to surrounding, after arc current zero passage, the medium of contact gap is changed into insulator from electric conductor rapidly, now electric current quilt
Disjunction, complete sub-switching operation.
At present, using the breaker of vacuum extinction mode mainly in 40.5kV and following, voltage class is higher, breaks during arc extinguishing
What road device needed opens away from bigger, it is desirable to dielectric strength it is higher, market 126kV breakers on sale are mostly SF6 extinction using gas sides
Formula.126kV vacuum circuit breaker separating brakes open away from up to 40.5kV vacuum circuit breakers open away from 3 times or so, from 126kV as shown in Figure 8
Vacuum circuit breaker separating brake curve understand, vacuum circuit breaker dynamic/static contact open away from for 10~38mm when arc extinguishing best results, can
Effectively avoid vacuum circuit breaker resume combustion.How under test the 126kV vacuum circuit breakers now produced are, is broken using traditional vacuum
Road device operating mechanism, there is some following deficiency in it：Operation power needed for first, 126kV vacuum circuit breaker divide-shut brake is larger,
Traditional vacuum circuit breaker operating mechanism can not meet divide-shut brake demanded power output.Second, in order to meet insulation safety away from
From, the split-phase spacing of 126kV vacuum circuit breakers is larger, in divide-shut brake action process, pull the main shaft of each phase insulated tension pole because away from
Certainly will be in the presence of swing, bending phenomenon from farther out so that each phase divide-shut brake speed disunity.According to increase major axis diameter to obtain
The mode of main shaft rigid, while the load of operating mechanism is also increased, it is a kind of test again to operating mechanism.3rd, pass
The vacuum circuit breaker opening velocity of system is linear, it is impossible to extend optimal arc extinguishing open away from time, can not meet that 126kV vacuum is broken
The requirement of road device separating brake arc extinguishing, so that vacuum circuit breaker arc extinguishing fails, vacuum circuit breaker vacuum packet will be damaged when serious.
Therefore, urgent need will do further optimization to high-pressure vacuum breaker, during extending vacuum circuit breaker drop-out current most
Good arc extinguishing open away from time, ensure that high-pressure vacuum breaker divide-shut brake is synchronous, make vacuum circuit breaker arc extinguishing more reliable.
The content of the invention
For above-mentioned weak point, it is an object of the invention to provide a kind of high pressure without vacuum circuit breaker of restriking, main solution
Optimal arc extinguishing can not certainly be extended present in prior art to open away from the corresponding time, operation power output is low, and main shaft was acting
The problem of swing, bending etc. in journey be present.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of high pressure the installation pedestal being fixedly connected with support frame, is fixed on without vacuum circuit breaker of restriking, including support frame
Operating mechanism on support frame, three groups of magnetosheath pipes being connected on support frame and with operating mechanism, and it is built in magnetosheath pipe
Insulated tension pole, moving contact, static contact and vacuum interrupter.Three groups of magnetosheath pipes are divided into A phase magnetosheaths pipe, B phase magnetosheath pipes and C phase magnetic
Sleeve pipe, wherein, the operating mechanism is including the operating mechanism box being fixed on support frame, the main shaft being connected with insulated tension pole, Gu
The reduction box being scheduled in operating mechanism box, the combined floodgate energy storage bar being connected with reduction box, first be connected with combined floodgate energy storage bar are closed a floodgate
Energy-storage crank arm, the first switching-in spring being connected with the first combined floodgate energy-storage crank arm, the energy storage motor being connected with reduction box, stored up with closing a floodgate
The energy storage instruction unit that energy bar is connected, the tripping spring being connected with main shaft, is matched, for controlling tripping spring with tripping spring
The switching winding of potential energy is discharged, is matched with the first switching-in spring, the closing coil for controlling the first switching-in spring release potential energy,
The energy storage position limit arm being enclosed on combined floodgate energy storage bar, it is arranged in operating mechanism box, the energy for absorbing main shaft rotation function
Stopping means is absorbed, the overshoot spacer with main shaft rotation matching, the auxiliary switch being connected with closing coil and switching winding, is divided
The separating brake system and combined floodgate system not matched with main shaft rotation linkage, are matched, for manually operated separating brake with tripping spring linkage
Opening button, with the first switching-in spring linkage match, the switch knob for manually operated combined floodgate, be connected, be used for main shaft
First switching-in spring potential energy is converted into the main shaft gangbar of main shaft rotation function, be arranged in operating mechanism box side wall and with master
The arrangements for speed regulation of axis connection, the spring bearing of main shaft marginal surface is enclosed on, the second combined floodgate energy storage being connected with combined floodgate energy storage bar is turned
Arm, and the second switching-in spring being connected with the second combined floodgate energy-storage crank arm.Similarly, closing coil can also control the second combined floodgate bullet
Spring discharges potential energy, is converted into the kinetic energy to close a floodgate, and switch knob is used for manually operated close a floodgate the first switching-in spring and second simultaneously
The potential energy of switching-in spring is converted into the kinetic energy to close a floodgate.
Specifically, the vacuum extinction outdoor face is cellular pouring structure；It is provided in vacuum extinction room electrically
The moving contact and static contact open, to break.The magnetosheath pipe top and middle part set the inlet wire seat being connected with external electrical and gone out respectively
Line seat.Wherein, moving contact links with inlet wire seat or wire outlet seat, then static contact links with wire outlet seat or inlet wire seat.
Further, the tripping spring includes the first tripping spring for being arranged on A phase magnetic casing parts, is arranged on B phases
The second tripping spring and the 3rd tripping spring of magnetic casing part, and the 4th tripping spring of C phase magnetic casing parts is arranged on,
Wherein, the first tripping spring, the second tripping spring, the 3rd tripping spring and the 4th tripping spring are connected with main shaft.
Preferably, the arrangements for speed regulation include the 3rd connecting lever being fixedly connected with one end with main shaft, another with the 3rd connecting lever
The damper rod that end connects and set through operating mechanism box, the cylindrical holder being fixed in operating mechanism box, is arranged on cylinder
Mid-stent, the central through hole for running through for damper rod, in cylindrical holder side circumferentially uniform three groups of installation through-holes, with
And the speed regulating mechanism in installation through-hole is arranged on, wherein, installation through-hole connects with central through hole, and is set in the installation through-hole
There is internal thread.Installation through-hole is arranged on the radial direction of cylindrical holder and perpendicular to central through hole.
Further, the speed regulating mechanism includes the power transmission pin contacted with the extruding of damper rod outer surface edge, with
The stage clip of power transmission pin connection, and be connected with stage clip, the adjusting screw for adjusting contact.The stage clip and adjusting screw
It is arranged in installation through-hole.The adjusting screw matches with the internal thread of installation through-hole.In order to prevent adjusting screw operation pine
Dynamic, displacement, the lock nut of position locking is had additional in adjusting screw.
Preferably, on the damper rod, set gradually close to cylindrical holder one end coordinate with power transmission pin the second tapered portion,
Convex portion and the first tapered portion.The damping head being connected with the 3rd connecting lever is additionally provided with the damper rod other end.The damping head
It is provided with the limited post of cylinder.The first mounting hole matched with limited post is set on the 3rd connecting lever.It is second tapered portion, convex
Portion and the first tapered portion are set gradually according to damper rod close to cylindrical holder to damping head direction.Wherein, the first tapered portion and
The width of two tapered portion is determined by vacuum circuit breaker separating brake curve, and is determined by way of debugging, verifying.
Dexterously, the energy storage position limit arm is both arms H shape structure, and energy storage position limit arm is fixed with combined floodgate energy storage bar and connected
Connect.The reduction box is worm gear structure.
Further, the energy absorbs the cam that stopping means includes being fixedly connected with main shaft, is fixed on operation machine
Energy on structure case absorbs spacing pedestal, the spring(-supported) mount of spacing base central is absorbed installed in the energy, installed in the bullet
Kinetic energy absorption spring on spring support, and contacted with the connection of kinetic energy absorption spring, the extruding for coordinating with cam rotary squeezing
Portion.
Further, the main shaft is provided with the first connecting lever that one end is fixedly connected with the main shaft, and first connecting lever is another
One end is provided with the second connecting lever being hinged with operating mechanism box, is provided between first connecting lever and the second connecting lever and connects with insulated tension pole
The second mounting hole connect.
Preferably, the spring bearing is respectively set a set of in A phase magnetosheath pipes and C phase magnetic casing parts.
Compared with prior art, the invention has the advantages that：
(1) present invention sets up arrangements for speed regulation by being improved to operating mechanism, most preferably opens away from corresponding during extending separating brake
Time, ensure the reliable arc extinguishing of vacuum circuit breaker.In addition, the spring by setting up combined floodgate energy storage, improves combined floodgate power output, solution
Certainly vacuum circuit breaker because kinetic energy deficiency cause to close slowly the problem of, slow down dynamic/static contact electric arc calcination.Moreover, the present invention passes through
Set provide the rotatably supported spring bearing of main shaft, can effectively avoid main shaft because length it is longer caused by buckling phenomenon, make combined floodgate
It is more synchronous.
(2) present invention, which is dexterously provided for extending optimal separating brake, drives the arrangements for speed regulation away from the corresponding time, according to vacuum
Breaker open operation curve adjusts the adjusting screw of squeeze friction, changes the squeeze friction between damper rod and power transmission pin, then
Configured tapered portion and convex portion extrusion friction on damper rod, to realize that opening velocity is adjusted.In addition, in the appearance of damper rod
Face extruding contact sets 3 speed regulating mechanisms in 120 degree of distributions, makes damper rod uniform force in action process, can have
Effect avoids damper rod discontinuity from causing its bending damage.
(3) present invention uses the reduction box of worm gear structure, and extends combined floodgate energy storage pole length, increases combined floodgate energy storage bullet
Spring, combined floodgate power output is improved, enough divide-shut brake kinetic energy is provided for 126kV vacuum circuit breaker, makes reduction box stress more equal
It is even.In addition, energy storage position limit arm is improved into both arms H shape structure, increases energy storage limit strength, can effectively avoid energy storage position limit arm
Cause flexural deformation because rotation function is excessive, make spacing more reliable.
(4) present invention sets two groups of spring bearings for being enclosed on the outerface of spindle in vacuum circuit breaker A, C phase bottom, to ensure
Major axis horizontal uniform force, solve the problems, such as main shaft because divide phase spacing farther out caused by main shaft bending, swing, ensure vacuum
Circuit-breaker switching on-off is synchronous.Still further aspect, on the basis of spring bearing is set, tripping spring is dispersed in respectively get along and with
Insulated tension pole connects, consequently, it is possible to which the moment of torsion of main shaft separating brake output just can be reduced, mitigates main shaft separating brake kinetic energy and transmits burden, make
The diameter of main shaft further reduces, and saves the transmission operation kinetic energy of operating mechanism, and then, extend the service life of main shaft.
(5) present invention fully takes into account the life-span that operates with of the insulated tension pole of vacuum circuit breaker breaking-closing operating, ingenious
Setting mounting hole, and the second connecting lever to be hinged in operating mechanism box is rotary shaft, and the rotation of the first connecting lever is driven in main shaft
While turning, the insulated tension pole of vacuum circuit breaker is kept longitudinal direction movement, can effectively avoid in insulated tension pole action process
Occur bending and deformation, consequently, it is possible to which the service life of insulated tension pole just can be extended.
(6) moreover, the present invention is provided with cam on main shaft, and absorbs stopping means and overshoot spacer with energy
Rotatable engagement, in separating brake, cam follows main shaft to rotate clockwise, and realizes that cam absorbs stopping means extruding with energy and connect
Touch, the kinetic energy of rotation is converted into the potential energy of kinetic energy absorption spring, and one end extruding of cam is limited in energy and absorbed
Stopping means extrudes contact site.At the same time, overshoot regulation pad area will be limited in cam rotation position, consequently, it is possible to very
During empty breaker open operation, cam can be closely locked in energy and absorbed on stopping means, it is dynamic tactile thoroughly to solve vacuum circuit breaker
The problem of head separating brake bounce-back, the reciprocal vibration amplitude of arc-extinguishing chamber of circuit breaker moving contact during separating brake is greatly lowered, ensures sound
Contact separating brake is opened away from realizing the reliable arc extinguishing of vacuum circuit breaker.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is operating mechanism structural representation.
Fig. 3 is operating mechanism structural representation (removing spring bearing)
Fig. 4 is this operating mechanism side structure schematic diagram.
Fig. 5 is arrangements for speed regulation structural representation.
Fig. 6 is arrangements for speed regulation A-A views.
Fig. 7 is porcelain bushing shell structural representation.
Fig. 8 is 126kV vacuum circuit breaker separating brake optimization of profile figures.
In above-mentioned accompanying drawing, component names are as follows corresponding to reference：
1- installation pedestals, 2- support frames, 3- operating mechanisms, 4- magnetosheath pipes, 5- insulated tension poles, 6- operating mechanism box, 7- master
Axle, 8- vacuum interrupters, 9- separating brake systems, 10- decelerators, 11- combined floodgate energy storage bars, the switching-in springs of 12- first, 13- energy storage electricity
Machine, 14- auxiliary switches, 15- opening buttons, 16- microswitches, 17- energy storage instruction units, 18- counters, 19- energies absorb
Stopping means, 20- overshoot spacers, 21- arrangements for speed regulation, 22- energy storage position limit arms, 23- the second combined floodgate energy-storage crank arms, 24- second
Switching-in spring, 25- combined floodgate systems, the connecting levers of 26- first, the connecting levers of 27- second, 28- damper rods, 29- spring bearings, 30- first are closed
Lock energy-storage crank arm, 31- cylindrical holders, 32- adjusting screws, 33- stage clips, 34- power transmission pins, the connecting levers of 35- the 3rd, the kidney-shapeds of 36- first
Hole, the mounting holes of 37- second, 38- cams, the spacing pedestal of 39- energies absorption, 40- extruding contact sites, 41- kinetic energy absorption springs,
The tripping springs of 42- first, the tripping springs of 43- second, the tripping springs of 44- the 3rd, the tripping springs of 45- the 4th, 46- inlet wire seats, 47-
Wire outlet seat, 48- installation through-holes, 49- spring(-supported) mounts, 50- switch knobs, 51- main shaft gangbar, 52- lock nuts, 53- centers lead to
Hole, 281- damping heads, 282- limited posts, the tapered portion of 283- first, 284- convex portions, the tapered portion of 285- second.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include but is not limited to
The following example.
Embodiment
As shown in Figures 1 to 8, the invention provides a kind of high pressure without vacuum circuit breaker of restriking, and mainly includes support frame 2,
The installation pedestal 1 being fixedly connected with support frame 2, be fixed on operating mechanism 3 on support frame 2, on support frame 2 and with operation
A, B, C three-phase magnetosheath pipe 4 that mechanism 3 connects, and the insulated tension pole 5 and vacuum interrupter 8 of magnetosheath pipe 4 are built in, wherein, it is empty
Arc extinguishing outdoor face 8 is cellular pouring structure, sets moving contact and static contact, moving contact to pass through copper in vacuum interrupter 8
It is flexible coupling and is connected with inlet wire seat 46, and static contact is connected with wire outlet seat 47, thus constitutes electric high-voltage path.
In order to ensure that separating brake arc extinguishing is reliable, reduce the reciprocal vibration amplitude of moving contact during separating brake, lifting operation mechanism is defeated
Go out power.The present invention optimizes improvement to the operating mechanism of vacuum circuit breaker, and the operating mechanism 3 includes being fixed on support frame 2
On operating mechanism box 6, the main shaft 7 being connected with insulated tension pole 5, the reduction box 10 being fixed in operating mechanism box 6, with reduction box
The combined floodgate energy storage bar 11 of 10 connections, the first combined floodgate energy-storage crank arm 30 being connected with combined floodgate energy storage bar 11, is turned with the first combined floodgate energy storage
The first switching-in spring 12 that arm 30 connects, the energy storage motor 13 being connected with reduction box 10, is connected with combined floodgate energy storage bar 11
Energy storage instruction unit 17, the tripping spring being connected with main shaft 7, matched with tripping spring, for controlling tripping spring release potential energy
Switching winding, matched with the first switching-in spring 12, the closing coil for controlling the first switching-in spring 12 release potential energy, be enclosed on conjunction
Energy storage position limit arm 22 on lock energy storage bar 11, it is arranged in operating mechanism box 6, the energy for absorbing the rotation function of main shaft 7
Stopping means 19, the overshoot spacer 20 with the rotation matching of main shaft 7 are absorbed, the auxiliary being connected with closing coil and switching winding is opened
14 are closed, the separating brake system 9 and combined floodgate system 25 matched respectively with the rotation linkage of main shaft 7, is matched, for hand with tripping spring linkage
The opening button 15 of dynamic operation separating brake, is matched, the switch knob 50 for manually operated combined floodgate with the linkage of the first switching-in spring 12,
It is connected, the main shaft gangbar 51 for the potential energy of the first switching-in spring 12 to be converted into the rotation function of main shaft 7, is arranged on main shaft 7
The arrangements for speed regulation 21 being connected in the side wall of operating mechanism box 6 and with main shaft 7, the spring bearing 29 of the marginal surface of main shaft 7 is enclosed on, with conjunction
The second combined floodgate energy-storage crank arm 23 that lock energy storage bar 11 connects, and the second switching-in spring being connected with the second combined floodgate energy-storage crank arm 23
24.In order to increase the power output of divide-shut brake, extend the length of combined floodgate energy storage bar 11, and increase the second combined floodgate energy-storage crank arm 23 and the
Two switching-in springs 24, under the driving effect of energy storage motor 13, the first combined floodgate energy-storage crank arm 30 and the second combined floodgate energy storage is driven to turn
Arm 23 is rotated, and energy storage is stretched to the first switching-in spring 12 and the second switching-in spring 24.Wherein, energy absorb stopping means 14,
Arrangements for speed regulation 16 and spring bearing 24 respectively set 2 sets.Energy storage motor 13 is AC and DC 220V, 350W, and energy storage position limit arm 22 is double
Arm H shape structure, reduction box 10 are worm gear structure.
In order to ensure that separating brake is reliable, the isolated tripping spring of prior art is separated into first point be connected with main shaft 7
Lock spring 42, the second tripping spring 43, the 3rd tripping spring 44, and the 4th tripping spring 45.Wherein, the first tripping spring 42
Vacuum circuit breaker A, C phase magnetosheath bottom of the tube is separately positioned on the 4th tripping spring 45, and the second tripping spring 43 and the 3rd point
Lock spring 44 sets B phase magnetosheath bottom of the tube.Consequently, it is possible to which rotation torque of the main shaft in separating brake can be reduced, ensure that vacuum is broken
The separating brake power output of road device.
Wherein, arrangements for speed regulation 21 include the 3rd connecting lever 35 being fixedly connected with one end with main shaft 7, another with the 3rd connecting lever 35
The damper rod 28 that end connects and set through operating mechanism box 6, the cylindrical holder 31 being fixed in operating mechanism box 6, set
It is circumferentially uniform in the side of cylindrical holder 31 in the middle part of cylindrical holder 31, the central through hole 53 for running through for damper rod 28
Three groups of installation through-holes 48, and the speed regulating mechanism being arranged in installation through-hole 48, wherein, installation through-hole 48 and central through hole
53 connections, and it is provided with internal thread in the installation through-hole 48.Speed regulating mechanism is arranged in cylindrical holder 31 in 120 degree.Speed
Governor motion is again including the power transmission pin 34 contacted with the extruding of the outer surface edge of damper rod 28, the stage clip 33 being connected with power transmission pin 34,
And it is connected with stage clip 33, the adjusting screw 32 for adjusting contact.Stage clip 33 and adjusting screw 32 are arranged at installation
In through hole 48, and the adjusting screw 32 matches with the internal thread of installation through-hole 48.On damper rod 28, close to cylindrical holder 31
One end sets gradually the second tapered portion 285 coordinated with power transmission pin 34, the tapered portion 283 of convex portion 284 and first.It is another in damper rod 28
The damping first 281 being connected with the 3rd connecting lever 35 is set on one end.The limited post 282 of cylinder is provided with damping first 281.
The first mounting hole 36 matched with limited post 282 is set on three connecting levers 35.First tapered portion 283 and the are adjusted according to separating brake curve
The width of two tapered portion 285, to meet separating brake deceleration demand.
During vacuum circuit breaker separating brake, touch spring, the first tripping spring to the 4th tripping spring driving effect under, it is main
Axle 7 drives the 3rd connecting lever 35 to rotate clockwise, and damper rod 28 is pulled to be moved in the horizontal direction, when power transmission pin 34 and first is bored
Shape portion 283 contacts, and in the presence of stage clip 33, damper rod 28 does the increased retarded motion of acceleration.Then, damper rod 28 is convex
Portion 284 contacts with the extruding of power transmission pin 34, and damper rod 28 does the constant retarded motion of acceleration, after the deceleration transition of convex portion 284,
Power transmission pin 34 contacts with the extruding of the second tapered portion 285, and damper rod 28 does the reduction campaign of acceleration reduction.At the same time, cam
38 are turned clockwise, and cam 38 contacts with extruding contact site 40, and the kinetic energy that main shaft rotates is converted into kinetic energy absorption spring 41
Spring potential energy, and cam 38 is locked on extruding contact site 40.Consequently, it is possible to realize the kinetic energy during automatic absorption separating brake
Locked with open position, not only can effectively avoid the moving contact of vacuum circuit breaker from rebounding, prevent vacuum circuit breaker resume combustion, but also
It is avoided that operating mechanism dynamics is excessive or inertia force causes insulated tension pole to damage.Wherein, absorb spring 41 and absorb limit with energy
Position pedestal 39 connects.When adjusting vacuum circuit breaker deceleration time, adjusting screw 32 only need to be adjusted, to change the compression of stage clip 33
Dynamics, power transmission pin 34 is set to be changed with the contact friction force of damper rod 28.Adjusting screw 32 is locked by lock nut 52, prevented
Only its operation loosens.
In addition, the main shaft 7 of operating mechanism 3 is provided with the first connecting lever 26 that one end is fixedly connected with the main shaft 7, turned first
The other end of arm 26 is provided with the second connecting lever 27 being hinged with operating mechanism box 7, is provided between the first connecting lever 26 and the second connecting lever 27
The second mounting hole 37 being connected with insulated tension pole 5.For vacuum circuit breaker during divide-shut brake, the first connecting lever 26 follows main shaft 7
Rotation, it is ingenious that the second mounting hole 37 being connected with insulated tension pole 5 is set, in the bar that the second connecting lever 27 is hinged with operating mechanism box 6
Under part, insulated tension pole 5 is set to keep longitudinal direction movement, and then, the breaking-closing operating of vacuum circuit breaker is completed, is so designed that, can
Effectively insulated tension pole is avoided to bend deformation in operation, to extend insulated tension pole service life.
The present invention sets according to 126kV vacuum circuit breaker separating brakes optimization of profile and adjusted by being improved to operating mechanism
Speed variator, optimal arc extinguishing was opened away from the corresponding time during extending separating brake, and vacuum circuit breaker is opened in optimal arc extinguishing away from interior, obtain can
The arc extinguishing leaned on, effectively prevent vacuum circuit breaker resume combustion.Moreover, during the newly-increased arrangements for speed regulation of operating mechanism only change separating brake
For squeeze friction to reach deceleration purpose, its is simple in construction, and speed regulation is reliable.In addition, the present invention is in order to ensure that divide-shut brake is defeated
The power gone out, by extending combined floodgate energy storage pole length, one group of switching-in spring is set up, makes combined floodgate kinetic energy bigger, solve vacuum circuit breaker
The problems such as device Slow-disconnecting and slow-connecting.Moreover, tripping spring is divided into four groups by the present invention, scattered to be arranged on A, B, C three-phase porcelain bushing shell
Bottom, while opening velocity and power is ensured, also reduce the moment of torsion that main shaft transmits in separating brake.On this basis, this hair
It is bright also to set up two groups of spring bearings in vacuum circuit breaker A, C phase magnetic casing part, to provide the rotation during main shaft divide-shut brake
Support, effectively can avoid main shaft from being occured bending and deformation during divide-shut brake, make breaking-closing operating more synchronous.In summary, originally
Invention has the advantages that simple in construction, breaking-closing operating output power, separating brake deceleration is reliable, arc extinction performance is excellent, it may be said that
The present invention is compared with prior art, with prominent substantive distinguishing features and significantly progressive, in vacuum circuit breaker technical field tool
There are wide market prospects.
Above-described embodiment is only the preferred embodiments of the present invention, not limiting the scope of the invention, as long as using
The design principle of the present invention, and the change for carrying out non-creativeness work on this basis and making, all should belong to the present invention's
Within protection domain.
Claims (10)
1. a kind of high pressure is without vacuum circuit breaker of restriking, including support frame (2), the installation pedestal being fixedly connected with support frame (2)
(1) operating mechanism (3) on support frame (2), is fixed on, three groups of magnetic being connected on support frame (2) and with operating mechanism (3)
Sleeve pipe (4), and it is built in insulated tension pole (5), moving contact, static contact and the vacuum interrupter (8) of magnetosheath pipe (4)；Described three
Group magnetosheath pipe (4) is A phase magnetosheaths pipe, B phase magnetosheath pipes and C phase magnetosheath pipes, it is characterised in that the operating mechanism (3) includes solid
The operating mechanism box (6) being scheduled on support frame (2), the main shaft (7) being connected with insulated tension pole (5), is fixed on operating mechanism box (6)
Interior reduction box (10), the combined floodgate energy storage bar (11) being connected with reduction box (10), first be connected with combined floodgate energy storage bar (11) are closed
Lock energy-storage crank arm (30), the first switching-in spring (12) being connected with the first combined floodgate energy-storage crank arm (30), is connected with reduction box (10)
Energy storage motor (13), the energy storage instruction unit (17) being connected with combined floodgate energy storage bar (11), the separating brake bullet being connected with main shaft (7)
Spring, matched with tripping spring, the switching winding for controlling tripping spring release potential energy, matched with the first switching-in spring (12),
For controlling the closing coil of the first switching-in spring (12) release potential energy, the energy storage position limit arm being enclosed on combined floodgate energy storage bar (11)
(22), it is arranged in operating mechanism box (6), absorbs stopping means (19) for absorbing the energy of main shaft (7) rotation function, with
The overshoot spacer (20) of main shaft (7) rotation matching, the auxiliary switch being connected with closing coil and switching winding (14), respectively with
The separating brake system (9) and combined floodgate system (25) of main shaft (7) rotation linkage matching, are matched with tripping spring linkage, for grasping manually
Make the opening button (15) of separating brake, matched with the first switching-in spring (12) linkage, the switch knob for manually operated combined floodgate
(50), it is connected with main shaft (7), is linked for the first switching-in spring (12) potential energy to be converted into the main shaft of main shaft (7) rotation function
Bar (51), the arrangements for speed regulation (21) for being arranged in operating mechanism box (6) side wall and being connected with main shaft (7), is enclosed on main shaft (7) surface
The spring bearing (29) at edge, the second combined floodgate energy-storage crank arm (23) being connected with combined floodgate energy storage bar (11), and closed a floodgate with second
The second switching-in spring (24) of energy-storage crank arm (23) connection.
2. high pressure according to claim 1 is without vacuum circuit breaker of restriking, it is characterised in that the vacuum interrupter (8) is outside
Surface is cellular pouring structure；Magnetosheath pipe (4) top sets the inlet wire seat (46) being connected with external electrical；The magnetosheath
The wire outlet seat (47) being connected with external electrical is set in the middle part of pipe (4).
3. high pressure according to claim 1 is without vacuum circuit breaker of restriking, it is characterised in that the tripping spring includes setting
In the first tripping spring (42) of A phase magnetic casing parts, the second tripping spring (43) and the 3rd of B phase magnetic casing parts is arranged on
Tripping spring (44), and the 4th tripping spring (45) of C phase magnetic casing parts is arranged on, wherein, the first tripping spring (42),
Second tripping spring (43), the 3rd tripping spring (44) and the 4th tripping spring (45) are connected with main shaft (7).
4. the high pressure according to any one of claims 1 to 3 is without vacuum circuit breaker of restriking, it is characterised in that the speed governing dress
Putting (21) includes the 3rd connecting lever (35) that is fixedly connected with one end with main shaft (7), be connected with the 3rd connecting lever (35) other end and
The damper rod (28) set through operating mechanism box (6), the cylindrical holder (31) being fixed in operating mechanism box (6), is arranged on
Central through hole (53) in the middle part of cylindrical holder (31), for running through for damper rod (28), in cylindrical holder (31) side circumferentially
Three groups of uniform installation through-holes (48), and the speed regulating mechanism being arranged in installation through-hole (48), wherein, installation through-hole
(48) connected with central through hole (53), and internal thread is provided with the installation through-hole (48).
5. high pressure according to claim 4 is without vacuum circuit breaker of restriking, it is characterised in that the speed regulating mechanism includes
The power transmission pin (34) contacted with the extruding of damper rod (28) outer surface edge, the stage clip (33) being connected with power transmission pin (34), Yi Jiyu
Stage clip (33) connection, the adjusting screw (32) for adjusting contact, the stage clip (33) and adjusting screw (32) are respectively provided with
In installation through-hole (48), and the adjusting screw (32) matches with the internal thread of installation through-hole (48).
6. high pressure according to claim 5 is without vacuum circuit breaker of restriking, it is characterised in that on the damper rod (28), leans on
Nearly cylindrical holder (31) one end sets gradually the second tapered portion (285) coordinated with power transmission pin (34), convex portion (284) and the first cone
Shape portion (283)；The damping head (281) being connected with the 3rd connecting lever (35) is additionally provided with damper rod (28) other end；It is described
Damp the limited post (282) that head (281) is provided with cylinder；Set on 3rd connecting lever (35) and matched with limited post (282)
The first mounting hole (36).
7. the high pressure according to any one of claims 1 to 3 is without vacuum circuit breaker of restriking, it is characterised in that the energy storage limit
Position arm (22) is both arms H shape structure；The reduction box (10) is worm gear structure.
8. the high pressure according to any one of claims 1 to 3 is without vacuum circuit breaker of restriking, it is characterised in that the energy
Absorb the cam (38) that stopping means (19) includes being fixedly connected with main shaft (7), the energy being fixed in operating mechanism box (6)
Spacing pedestal (39) is absorbed, the spring(-supported) mount (49) in spacing pedestal (39) center is absorbed installed in the energy, installed in the spring
Kinetic energy absorption spring (41) on frame (49), and be connected with kinetic energy absorption spring (41), for cam (38) rotary squeezing
The extruding contact site (40) of cooperation.
9. the high pressure according to any one of claims 1 to 3 is without vacuum circuit breaker of restriking, it is characterised in that the main shaft (7)
It is provided with the first connecting lever (26) that one end is fixedly connected with the main shaft (7)；First connecting lever (26) other end is provided with and operation
Be hinged the second connecting lever (27) of mechanism case (7)；It is provided between first connecting lever (26) and the second connecting lever (27) and insulated tension pole
(5) the second mounting hole (37) of connection.
10. high pressure according to claim 1 is without vacuum circuit breaker of restriking, it is characterised in that the spring bearing (29) is in A
Phase magnetosheath pipe and C phase magnetic casing parts respectively set a set of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236401.7A CN107749369B (en) | 2017-11-30 | 2017-11-30 | High-voltage restrike-free vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236401.7A CN107749369B (en) | 2017-11-30 | 2017-11-30 | High-voltage restrike-free vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107749369A true CN107749369A (en) | 2018-03-02 |
| CN107749369B CN107749369B (en) | 2020-07-07 |
Family
ID=61249857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711236401.7A Active CN107749369B (en) | 2017-11-30 | 2017-11-30 | High-voltage restrike-free vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107749369B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303646A (en) * | 2018-05-03 | 2018-07-20 | 广东电网有限责任公司 | Portable divide-shut brake coil machinery force measuring device |
| CN108593173A (en) * | 2018-05-03 | 2018-09-28 | 广东电网有限责任公司 | Divide-shut brake coil machinery force measuring device |
| CN110223875A (en) * | 2019-05-10 | 2019-09-10 | 湖南长高高压开关集团股份公司 | A kind of spring buffer mechanism and disconnecting switch for disconnecting switch |
| CN111696818A (en) * | 2020-06-23 | 2020-09-22 | 广东电网有限责任公司 | Combined vacuum circuit breaker device |
| CN114300301A (en) * | 2021-12-27 | 2022-04-08 | 江苏新纪元电器科技有限公司 | High-voltage vacuum circuit breaker double-module operating mechanism with adjusting mechanism |
| CN116131422A (en) * | 2023-04-04 | 2023-05-16 | 四川电器集团中低压智能配电有限公司 | Energy storage signal amplifying device of high-voltage switch cabinet vacuum arc-extinguishing chamber |
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| CN205900432U (en) * | 2016-08-23 | 2017-01-18 | 四川奇通电气成套设备有限公司 | There is not high voltage DC vacuum circuit breaker that restrikes |
| CN107069689A (en) * | 2017-05-18 | 2017-08-18 | 安徽天电气技术股份有限公司 | Switch limits device of restriking |
| CN207663984U (en) * | 2017-11-30 | 2018-07-27 | 四川奇通电气成套设备有限公司 | A kind of high pressure is without vacuum circuit breaker of restriking |
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| US4250363A (en) * | 1978-12-06 | 1981-02-10 | Electric Power Research Institute, Inc. | Electrical circuit breaking device and method |
| CN101188166A (en) * | 2007-12-19 | 2008-05-28 | 杨永平 | A permanent magnetic mechanism |
| CN205900432U (en) * | 2016-08-23 | 2017-01-18 | 四川奇通电气成套设备有限公司 | There is not high voltage DC vacuum circuit breaker that restrikes |
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| CN207663984U (en) * | 2017-11-30 | 2018-07-27 | 四川奇通电气成套设备有限公司 | A kind of high pressure is without vacuum circuit breaker of restriking |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303646A (en) * | 2018-05-03 | 2018-07-20 | 广东电网有限责任公司 | Portable divide-shut brake coil machinery force measuring device |
| CN108593173A (en) * | 2018-05-03 | 2018-09-28 | 广东电网有限责任公司 | Divide-shut brake coil machinery force measuring device |
| CN110223875A (en) * | 2019-05-10 | 2019-09-10 | 湖南长高高压开关集团股份公司 | A kind of spring buffer mechanism and disconnecting switch for disconnecting switch |
| CN111696818A (en) * | 2020-06-23 | 2020-09-22 | 广东电网有限责任公司 | Combined vacuum circuit breaker device |
| CN114300301A (en) * | 2021-12-27 | 2022-04-08 | 江苏新纪元电器科技有限公司 | High-voltage vacuum circuit breaker double-module operating mechanism with adjusting mechanism |
| CN116131422A (en) * | 2023-04-04 | 2023-05-16 | 四川电器集团中低压智能配电有限公司 | Energy storage signal amplifying device of high-voltage switch cabinet vacuum arc-extinguishing chamber |
| CN116131422B (en) * | 2023-04-04 | 2023-07-04 | 四川电器集团中低压智能配电有限公司 | Energy storage signal amplifying device of high-voltage switch cabinet vacuum arc-extinguishing chamber |
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|---|---|
| CN107749369B (en) | 2020-07-07 |
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