CN104992858B - Interlocking mechanism of vacuum circuit breaker and isolation switch operation mechanism - Google Patents
Interlocking mechanism of vacuum circuit breaker and isolation switch operation mechanism Download PDFInfo
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- CN104992858B CN104992858B CN201510330208.4A CN201510330208A CN104992858B CN 104992858 B CN104992858 B CN 104992858B CN 201510330208 A CN201510330208 A CN 201510330208A CN 104992858 B CN104992858 B CN 104992858B
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- connecting rod
- circuit breaker
- vacuum circuit
- interlocking
- interlock
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- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to an interlocking mechanism of a vacuum circuit breaker and an isolation switch operation mechanism. The mechanism is characterized in that the interlocking mechanism adopts a mechanical interlocking mode; the structure is simple and reasonable, operation is flexible, installation is convenient and cost is low; the mode is more reliable than a single electrical locking mode and a locking effect can be well achieved; the interlocking mechanism is an ideal locking scheme selection; an anti-misoperation effect is remarkable and ideal; the interlocking mechanism accords with a ''five-prevention'' requirement of a 3.6-12KV fixed-type medium voltage switch cabinet; safe, stable and reliable operation of the3.6-12KV fixed-type medium voltage switch cabinet of a distribution room is guaranteed; and normal electric power supply to the user is guaranteed too.
Description
Technical field
The present invention relates to a kind of safety interlock for overhead for fixed vacuum breaker, more particularly to a kind of vacuum circuit breaker
The interlocking mechanism of device and isolator operating mechanism, it is adaptable to the fixed Medium Voltage Switchgears of 3.6~12KV.
Background technology
Switch cubicle is the controller switching equipment commonly used in power system, and switch cubicle generally includes cabinet, vacuum circuit breaker, keeps apart
Close etc., safety is one of most important technical specification of switch cubicle, and in order to reach five anti-requirements, each manufacturer is opening switch cubicle
Mutual interlocking gear is designed between vacuum circuit breaker and isolator operating mechanism in closing cabinet, such as commercially 3.6~12KV is solid
In fixed pattern Medium Voltage Switchgear, electromagnetic lock, auxiliary normally closed contact and the electricity of vacuum circuit breaker are installed on isolator operating mechanism
Magnetic padlock is concatenated, and only in vacuum circuit breaker separating brake and when locking power supply is normal, electromagnetic lock must be electrolysed lock, just can be opened with operation isolation
Close.Analyze from secondary principle, this electric blocking mode is feasible, but is had the drawback that in actual applications：Work as electricity
During magnetic padlock locking power loss, even if vacuum circuit breaker is under gate-dividing state, electromagnetic lock is still unable to automatic unlocking, needs people
The key unblock of work electromagnetic lock, can not thus function well as locking effect.And, auxiliary contact and electromagnetic lock etc. are electrically
Components and parts also easily break down, and affect normal use.So, the reliability of this single electric blocking mode is not very high.
The content of the invention
The technical problem to be solved is to provide a kind of simple and reasonable for above-mentioned state of the art
And the vacuum circuit breaker of switch cubicle maloperation and the interlocking mechanism of isolator operating mechanism can be prevented effectively from, with anti-misoperation
Effect is significantly and preferable, it is ensured that safer, the stable and reliable operation of switch cubicle.
The present invention solve the technical scheme that adopted of above-mentioned technical problem for：A kind of vacuum circuit breaker and isolator operation
The interlocking mechanism of mechanism, it is characterised in that：Including switch cubicle, inside it is provided with dividing plate and divides the interior into the first space and second empty
Between, vacuum circuit breaker is provided with the first space, the main shaft portion of the vacuum circuit breaker is formed through dividing plate into second space
Interlocking shaft, is fixed with baffle plate on interlocking shaft；Constrain in second space and be only capable of the interlock plate of upper and lower sliding, the top of interlock plate
With the auxiliary section extended laterally with baffle fit, a reset tension spring acts on interlock plate makes interlock plate keep shifting reset to become
Gesture；In second space and there is the interlock cam rotated by hand drive, interlock cam contacted with the auxiliary section of interlock plate, so that
The rotational energy of interlock cam drives the upper and lower sliding of interlock plate；The interlocking that be laterally located in switch cubicle and can rotate around own axes
Axle, the end that interlocking shaft is located in the first space are won in succession with the separating brake of vacuum circuit breaker by first connecting rod structure and are connected, so that
The rotational energy of interlocking shaft drives separating brake to win in succession by first connecting rod structure and moves up and down；Interlocking shaft is located at the end in second space
It is connected with the auxiliary section of interlock plate by second connecting rod structure, so that moving up and down for interlock plate can drive interlocking shaft around itself axle
Line rotates；Under vacuum circuit breaker "on" position, the main shaft portion of the vacuum circuit breaker just drives interlocking shaft to deflect to be made
Baffle plate thereon withstands the auxiliary section of interlock plate, and interlock cam can not rotate；Under vacuum circuit breaker gate-dividing state, the vacuum
The main shaft portion of chopper just drives interlocking shaft to deflect to the auxiliary section that the baffle plate for making thereon leaves interlock plate, and interlock cam can
To rotate；When interlock cam turns to the disjunction locked position of coupler of side, interlock plate is moved down and passes through second connecting rod structure and drives
Interlocking shaft is rotated around own axes, while the first connecting rod structure that is rotated through of interlocking shaft drives separating brake to win in succession and move down pinning vacuum
The main shaft of chopper；Interlock cam turn to centre job site situation under, interlock plate reset tension spring effect under on move
Reset, move on interlock plate and drive interlocking shaft to reversely rotate around own axes by second connecting rod structure, while interlocking shaft is anti-
To be rotated through first connecting rod structure drive separating brake win in succession on transfer from one place to another under escort except the locking of the main shaft portion to vacuum circuit breaker.
To make this interlocking mechanism realize more preferable five anti-demands, open slot is provided with above-mentioned interlock cam, is set in open slot
There is the locking bar whether opened to the door lock of controlling switch cabinet；When interlock cam turns to the maintenance position of opposite side, interlocking
Plate is moved down and passes through second connecting rod structure and drives interlocking shaft to rotate around own axes, and interlocking shaft is rotated through first connecting rod structure
Drive separating brake to win in succession and move down the main shaft portion for pinning vacuum circuit breaker；Interlock cam only can be just driven under the location status simultaneously
Locking bar opens the door lock of switch cubicle.Interlock cam can be rotated, and illustrate that now vacuum circuit breaker is in gate-dividing state certainly, only
When interlock cam turns to the maintenance position of opposite side, one side separating brake is won in succession and moves down the main shaft for pinning vacuum circuit breaker, prevents
Only false switching, only under inspecting state, could open cabinet door and be keeped in repair, prevent powered entrance.
Above-mentioned first connecting rod structure includes push rod and first connecting rod, and the push rod is constrained in the first space and is only capable of up and down
Sliding, lower end and the separating brake of push rod are won in succession and are connected so that separating brake can be driven to win in succession upper and lower sliding, and the upper end of push rod and described first connects
One end of bar is fixed, and the other end of the first connecting rod is fixed with the interlocking shaft in the first space, and first connecting rod and connection
The perpendicular setting of lock shaft.It is few and simple that the bar linkage structure is related to part, when interlocking shaft is rotated, the first company that drive is fixed thereon
Bar deflects on the direction of vertical interlocking shaft, and because first connecting rod drives push rod to move down or upper shifting, realizes that separating brake is won in succession lock
Firmly whether the main shaft of vacuum circuit breaker.
The upper end of above-mentioned push rod is provided with external screw thread to form threaded shank, and the threaded shank of the push rod passes first connecting rod upwards
The perforation of one end, and the first top nut for being threadedly attached in threaded shank and the first lower nut are solid with first connecting rod by push rod
It is fixed.The bar linkage structure is different by position of first top nut with the first lower nut on push rod, to first connecting rod in interlocking shaft
Turn an angle down, realize the adjustment of first connecting rod institute amplitude of fluctuation, finally realize that push rod moves up and down the adjustment of amplitude,
Whole interlocking mechanism is allowed to be in best operational position.
Above-mentioned first top nut and the first lower nut respectively have two；Push rod mutually can be fixed more by two nuts with first connecting rod
For firm stable, the end that the interlocking shaft is located in the first space is provided with the first half grooves, and one end of the first connecting rod is shelved
And be fixed by screws in the first half groove.The first half grooves are acted on to the installation site Constrained of first connecting rod, simultaneously because
The bottom surface of half groove is plane, and compared to arcwall face, plane can make interlocking shaft fix more firm with first connecting rod.
Above-mentioned second connecting rod structure includes pull bar and second connecting rod, and the lower end of the pull bar is vertically fixed on matching somebody with somebody for interlock plate
In conjunction portion, one end of the upper end of pull bar and the second connecting rod is fixed, the other end of the second connecting rod be located at second space
Interior interlocking shaft is fixed, and second connecting rod and the perpendicular setting of interlocking shaft.It is few and simple that the bar linkage structure is related to part, firm drawing
When moving up and down, drive the second connecting rod being fixed thereon to deflect on the direction of vertical interlocking shaft, finally drive interlocking shaft
Rotate around own axes.
The top and bottom of above-mentioned pull bar are equipped with external screw thread to form upper threaded shank and lower threaded shank, the pull bar it is upper
Threaded shank passes the perforation of second connecting rod one end, and the second top nut and second being threadedly attached in threaded shank upwards
Pull bar is fixed by lower nut with second connecting rod；The lower threaded shank of the pull bar passes downwards the perforation on the auxiliary section of interlock plate,
And pull bar is fixed by the 3rd top nut that is threadedly attached in lower threaded shank and the 3rd lower nut with auxiliary section.The connecting rod is tied
Structure is different by position of second top nut with the second lower nut on push rod, and the 3rd top nut and the 3rd lower nut are to top
Position on bar is different, and pull bar realizes the adjustment of second connecting rod institute amplitude of fluctuation, most in the case of certain distance is moved up and down
Realize that second connecting rod drives the adjustment of the amplitude of interlocking shaft rotational angle eventually, allow whole interlocking mechanism to be in best operational position.
Above-mentioned second top nut, the second lower nut, the 3rd top nut and the 3rd lower nut respectively have two；Two nuts can be by
Mutually fixation is more firm stable for pull bar and the auxiliary section of first connecting rod and interlock plate and first connecting rod, and the interlocking shaft is located at the
End in two spaces is provided with the second half grooves, and one end of the second connecting rod is shelved and is fixed by screws in the second half groove
It is interior.The second half grooves are acted on to the installation site Constrained of second connecting rod, simultaneously because the bottom surface of half groove is plane, compared to arc
Face, plane can make interlocking shaft fix more firm with first connecting rod.
Two vertically arranged bar shaped pilot holes are provided with above-mentioned interlock plate, in the second space of switch cubicle, fixation is fixed with
Plate, is fixed with two axis of guides in fixed plate, each axis of guide passes through in corresponding bar shaped pilot hole to slide interlock plate up and down
Move spacing, on interlock plate, be fixed with band moving axis, the upper end of the reset tension spring hooks and is located on wherein one axis of guide, reset tension spring
Lower end hook be located at band moving axis on.
Above-mentioned interlock cam has two planar portions and two high point portions, passes through arc between the inner of two of which planar portions
Shape transition, one of high point portion are located at the outer end of a planar portions, and another high point portion is located at the outer end of another planar portions；
Under a planar portions of interlock cam with the auxiliary section contact condition of interlock plate, in operating position, in the planar portions outer end
High point portion and interlock plate auxiliary section contact condition under, in disjunction locked position of coupler, in another high point portion and interlock plate
Under the contact condition of auxiliary section, in maintenance position.The work cambered surface of the interlock cam is symmetrical set, therefore the peace to interlock cam
Dress direction does not require, installs and be more convenient.
Compared with prior art, it is an advantage of the current invention that：Interlock method of this interlocking mechanism using machinery, simple structure
Rationally, flexible operation, easy for installation, with low cost, it is more more reliable than single electric blocking mode, can more function well as locking
Effect, is that a kind of preferable lock-out scheme is selected, and anti-misoperation effect is significantly and preferable, more meets 3.6~12KV fixed
" five prevent " of Medium Voltage Switchgear require, ensured the fixed Medium Voltage Switchgears of 3.6~12KV of switchgear house it is safer, stable, can
The operation leaned on, it is ensured that the normal electricity of user is supplied.
Description of the drawings
Structural representations of the Fig. 1 for the embodiment of the present invention (interlock cam is in operating position)；
Right views of the Fig. 2 for Fig. 1；
Fig. 3 is the connection diagram of pull bar and second connecting rod in embodiment of the present invention first connecting rod mechanism；
Structural representations of the Fig. 4 for the embodiment of the present invention (interlock cam is in disjunction locked position of coupler)；
Right views of the Fig. 5 for Fig. 4；
Structural representations of the Fig. 6 for the embodiment of the present invention (interlock cam is in maintenance position)；
Right views of the Fig. 7 for Fig. 6.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Fig. 1~7, it is a preferred embodiment of the present invention.
A kind of interlocking mechanism of vacuum circuit breaker and isolator operating mechanism, including
Switch cubicle 1,1 structure of switch cubicle and existing fixed Medium Voltage Switchgear it is substantially similar, therefore its in drawing without detailed
Carefully draw, be inside provided with dividing plate 2 and divide the interior into the first space 11 and second space 12, in the first space 11, be provided with vacuum circuit breaker
Device, vacuum circuit breaker constructions and isolator operating mechanism are also prior art, are not drawn in detail, vacuum circuit breaker in drawing
Main shaft portion 3 enter second space through dividing plate and form interlocking shaft 4, interlocking shaft 4 is independent two parts with main shaft portion 3,
Interlocking shaft 4 is fixed on the end of main shaft portion 3, and baffle plate 5 is fixed with interlocking shaft 4, and baffle plate 5 is hung down substantially with the axial direction of interlocking shaft 4
Directly.
The interlock plate 6 of upper and lower sliding is constrained in second space 12 and is only capable of, the top of interlock plate 6 has laterally horizontal prolonging
The auxiliary section 61 coordinated with baffle plate 5 is stretched, therefore 6 substantially l-shaped of interlock plate, a reset tension spring 7 act on interlock plate 6 and make interlock plate 6
Reset trend is moved in holding；Two vertically arranged bar shaped pilot holes 62 are provided with interlock plate 6, in the second space 12 of switch cubicle
Fixed plate 22 is fixed with, two axis of guides 221 in fixed plate 22, are fixed with, each axis of guide 221 is oriented to through corresponding bar shaped
So that band moving axis 63 to interlock plate sliding and position limitation about 6, is fixed with interlock plate 6, the upper end of reset tension spring 7 hooks and is located at wherein in hole 62
On a piece axis of guide 221, the lower end of reset tension spring 7 hooks and is located on band moving axis 63.
The interlock cam 9 of rotation, the cooperation of interlock cam 9 and interlock plate 6 are driven in second space 12 and by handle 8
Portion 61 contacts, so that the rotational energy of interlock cam 9 drives interlock plate sliding about 6.
The interlocking shaft 10 that be laterally located in switch cubicle and can rotate around own axes, interlocking shaft 10 are located at the first space 11
Interior end is won in succession by first connecting rod structure and the separating brake of vacuum circuit breaker and 13 is connected, so that the rotational energy of interlocking shaft 10 passes through
First connecting rod structure drives separating brake to win in succession and 13 moves up and down；Interlocking shaft 10 is located at the end in second space 12 and passes through second connecting rod
Structure is connected with the auxiliary section of interlock plate 6, so that moving up and down for interlock plate 6 can drive interlocking shaft 10 to rotate around own axes.
First connecting rod structure includes push rod 15 and first connecting rod 16, and push rod 15 is constrained in the first space 11 and is only capable of up and down
Sliding, lower end and the separating brake of push rod 15 are won in succession and 13 are connected to drive separating brake to win in succession about 13 slidings, the upper end of push rod 15 and institute
The one end for stating first connecting rod 16 is fixed, and the other end of first connecting rod 16 is fixed with the interlocking shaft 10 in the first space 11, and
First connecting rod 16 and 10 perpendicular setting of interlocking shaft.The upper end of push rod 15 is provided with external screw thread to form threaded shank 151, push rod 15
Threaded shank 151 passes the perforation of 16 one end of first connecting rod, and the first top nut being threadedly attached in threaded shank 151 upwards
Push rod 15 is fixed by 17a and the first lower nut 18a with first connecting rod 16.First top nut 17a and the first lower nut 18a respectively have two
It is individual；The end that interlocking shaft 10 is located in the first space 11 is provided with the first half grooves 101, and one end of first connecting rod 16 is shelved and passes through spiral shell
Nail 19 is fixed in the first half groove 101.
Second connecting rod structure includes pull bar 20 and second connecting rod 21, and the lower end of pull bar 20 is vertically fixed on the cooperation of interlock plate
In portion 61, the upper end of pull bar 20 is fixed with one end of second connecting rod 21, the other end of second connecting rod 21 be located at second space 12
Interior interlocking shaft 10 is fixed, and second connecting rod 21 and 10 perpendicular setting of interlocking shaft.The top and bottom of pull bar 20 are equipped with outer
To form upper threaded shank 201 and lower threaded shank 202, the upper threaded shank 201 of pull bar 20 passes 21 one end of second connecting rod to screw thread upwards
Perforation, and the second top nut 17b for being threadedly attached in threaded shank 201 and the second lower nut 18b by pull bar 20 with
Second connecting rod 21 is fixed；The lower threaded shank 202 of pull bar 20 passes downwards the perforation on the auxiliary section 61 of interlock plate, and passes through screw thread
Pull bar 20 is fixed by the 3rd top nut 17c being connected in lower threaded shank 202 and the 3rd lower nut 18c with auxiliary section 61.Second
Top nut 17b, the second lower nut 18b, the 3rd top nut 17c and the 3rd lower nut 18c respectively have two；Interlocking shaft 10 is located at second
End in space 12 is provided with the second half grooves 102, one end of second connecting rod 21 shelve and pass through screw 19 be fixed on this second half
In groove 102.
Under vacuum circuit breaker "on" position, the main shaft portion 3 of vacuum circuit breaker just drives interlocking shaft 10 to deflect to be made
Baffle plate 5 thereon withstands the auxiliary section 61 of interlock plate 6, and interlock cam 9 can not rotate.
Under vacuum circuit breaker gate-dividing state, the main shaft portion 3 of vacuum circuit breaker just drives interlocking shaft 10 to deflect to be made
Baffle plate 5 thereon leaves the auxiliary section 61 of interlock plate 6, and interlock cam 9 can rotate.
When interlock cam 9 turns to the disjunction locked position of coupler of side, interlock plate 6 is moved down and by second connecting rod structure band
Dynamic interlocking shaft 10 is rotated around own axes, while the first connecting rod structure that is rotated through of interlocking shaft 10 drives separating brake to win in succession 13 to move down
Pin the main shaft portion 3 of vacuum circuit breaker.
Under the job site situation that interlock cam 9 turns to centre, interlock plate 6 under the effect of reset tension spring 7 on move multiple
Position, moves on interlock plate 6 and drives interlocking shaft 10 to reversely rotate around own axes by second connecting rod structure, while interlocking shaft 10
Reversely rotate to win in succession by first connecting rod structure drive separating brake and transfer from one place to another under escort except the locking of the main shaft portion 3 to vacuum circuit breaker on 13.
Open slot 91 is provided with interlock cam 9, in open slot 91, is provided with what is whether opened to the door lock of controlling switch cabinet
Locking bar 14；When interlock cam 9 turns to the maintenance position of opposite side, interlock plate 6 is moved down and is driven by second connecting rod structure
Interlocking shaft 10 is rotated around own axes, interlocking shaft 10 be rotated through first connecting rod structure drive separating brake to win 13 in succession to move down pinning true
The main shaft portion 3 of empty chopper；Interlock cam 9 only could drive locking bar 14 to open the door of switch cubicle under the location status simultaneously
Lock.
Interlock cam 9 has two planar portions 92 and two high point portions 93, leads between the inner of two of which planar portions 92
Arc-shaped transition is crossed, one of high point portion 93 is located at the outer end of a planar portions 92, and another high point portion 93 is flat positioned at another
The outer end of face 92；Under 61 contact condition of auxiliary section of a planar portions 92 and interlock plate of interlock cam 9, in working position
Put, under the high point portion 93 of 92 outer end of planar portions with 61 contact condition of auxiliary section of interlock plate, in disjunction locked position of coupler,
Under 61 contact condition of auxiliary section of another high point portion 93 and interlock plate, in maintenance position.
The operation principle and process of this interlocking mechanism is as follows：
As shown in Figures 1 to 3, under vacuum circuit breaker "on" position, now, the main shaft portion 3 of vacuum circuit breaker just band
Dynamic interlocking shaft 10 deflects to the auxiliary section 61 that the baffle plate 5 for making thereon withstands interlock plate 6, and interlock cam 9 can not rotate, and make interlocking convex
Wheel 9 is locked in operating position always, it is impossible to turns to disjunction locked position of coupler and maintenance position, cannot also use the behaviour of disconnecting switch
Make mechanism carries out breaking-closing operating to disconnecting switch, i.e., the vacuum circuit breaker and disconnecting switch by carrying in existing switch cubicle is grasped
Make locking structure between mechanism to realize the locking of the operating mechanism to disconnecting switch, so as to realize " not on-load divide-shut brake "
Requirement.
As shown in Figure 4,5, when vacuum circuit breaker is in gate-dividing state, the main shaft portion 3 of vacuum circuit breaker just drives connection
Lock shaft 10 deflects to the auxiliary section 61 that the baffle plate 5 for making thereon leaves interlock plate 6, and baffle plate 5 no longer stops interlock plate 6, swing handle 8
Interlock cam 9 can be driven to rotate, now interlock cam 9 can turn to disjunction locked position of coupler, the behaviour of disconnecting switch at this moment, can be used
Making mechanism carries out breaking-closing operating to disconnecting switch；Go under disjunction locked position of coupler state in interlock cam 9, interlock cam 9
One high point portion 93 is contacted with auxiliary section, drives interlock plate 6 to overcome the pulling force of reset tension spring 7 to move down, and interlock plate 6 is moved down, and is driven
Pull bar 20 is moved down, while driving the second connecting rod 21 being connected with pull bar 20 to move down, is driven interlocking shaft 10 to rotate around own axes, is joined
The first connecting rod 16 that rotarily drives of lock shaft 10 is moved down with 15 phase fixing end of push rod, is further driven to push rod 15 and is moved down, last push rod
15 drive separating brakes are won in succession and move down the main shaft portion 3 for pinning vacuum circuit breaker.Vacuum circuit breaker can not carry out closing operation, including handss
It is dynamic and electronic, i.e., by the locking structure between the vacuum circuit breaker that carries in existing switch cubicle and isolator operating mechanism come
Locking vacuum circuit breaker, prevents chopper from carrying out closing operation, so as to realize the requirement of " not falsely close circuit breaker ".So as to more protect
Demonstrate,prove only in the case of not on-load, on/off switch operation could have been carried out to disconnecting switch.
As shown in Figure 4,5, when vacuum circuit breaker is in gate-dividing state, the only operation machine of disconnecting switch of interlock cam 9
Structure carries out closing operation to disconnecting switch, and then interlock cam 9 is turned to the job site situation of centre again, and interlock plate 6 exists
Lower upper shifting of the effect of reset tension spring 7 resets, and drives, while drive,
Interlocking shaft 10 is driven to reversely rotate around own axes, the reverse rotation of interlocking shaft 10 drives first connecting rod 16 mutually to fix with push rod 15
Move on end, be further driven to move on push rod 15, last push rod 15 drive separating brake win in succession on transfer from one place to another under escort main shaft part except vacuum circuit breaker
Divide 3 locking.Vacuum circuit breaker can carry out closing operation, including manual and electronic.
As shown in Figure 6,7, when to be overhauled, interlock cam 9 is turned to into maintenance position, if interlock cam 9 can be rotated,
Vacuum circuit breaker is proved under gate-dividing state, another high point portion 93 of interlock cam 9 is contacted with auxiliary section, drive interlock plate
6 overcome the pulling force of reset tension spring 7 to move down, and interlock plate 6 is moved down, and drive pull bar 20 to move down, while driving the be connected with pull bar 20
Two connecting rods 21 are moved down, drive interlocking shaft 10 rotate around own axes, and interlocking shaft 10 rotarily drives first connecting rod 16 and push rod 15
Phase fixing end is moved down, and is further driven to push rod 15 and is moved down, and last push rod 15 drives separating brake to win in succession and moves down pinning vacuum circuit breaker
Main shaft portion 3, vacuum circuit breaker can not carry out closing operation, including manual and electronic, and interlock cam 9 is only under the location status
Locking bar 14 could be driven to open the door lock of switch cubicle, switch cubicle could be keeped in repair, be prevented powered entrance.
Claims (10)
1. the interlocking mechanism of a kind of vacuum circuit breaker and isolator operating mechanism, it is characterised in that：Including
Switch cubicle (1), is inside provided with dividing plate (2) and divides the interior into the first space (11) and second space (12), the first space
(11) vacuum circuit breaker is provided with, the main shaft portion (3) of the vacuum circuit breaker enters second space through dividing plate and forms interlocking
Axle (4), is fixed with baffle plate (5) on interlocking shaft (4)；
Constrain in second space (12) and be only capable of the interlock plate (6) of upper and lower sliding, the top of interlock plate (6) has and extends laterally
The auxiliary section (61) coordinated with baffle plate (5), a reset tension spring (7) are acted on interlock plate (6) and make to move in interlock plate (6) holding and resetted
Trend；
The interlock cam (9) of rotation, interlock cam (9) and interlock plate (6) are driven in second space (12) and by handle (8)
Auxiliary section (61) contact so that the rotational energy of interlock cam (9) drives interlock plate (6) up and down sliding；
The interlocking shaft (10) that be laterally located in switch cubicle and can rotate around own axes, interlocking shaft (10) is positioned at the first space
(11) end in by first connecting rod structure win in succession with the separating brake of vacuum circuit breaker (13) be connected so that the rotation of interlocking shaft (10)
Turn can by first connecting rod structure drive separating brake win in succession (13) move up and down；End of the interlocking shaft (10) in second space (12)
Portion is connected with the auxiliary section of interlock plate (6) by second connecting rod structure, so that moving up and down for interlock plate (6) can drive interlocking shaft
(10) rotate around own axes；
Under vacuum circuit breaker "on" position, the main shaft portion (3) of the vacuum circuit breaker just drives interlocking shaft (10) to deflect
The auxiliary section (61) of interlock plate (6) is withstood to the baffle plate (5) for making thereon, interlock cam (9) can not rotate；
Under vacuum circuit breaker gate-dividing state, the main shaft portion (3) of the vacuum circuit breaker just drives interlocking shaft (10) to deflect
The auxiliary section (61) of interlock plate (6) is left to the baffle plate (5) for making thereon, interlock cam (9) can rotate；
When interlock cam (9) turns to the disjunction locked position of coupler of side, interlock plate (6) is moved down and by second connecting rod structure band
Dynamic interlocking shaft (10) is rotated around own axes, while the first connecting rod structure that is rotated through of interlocking shaft (10) drives separating brake to win in succession
(13) move down the main shaft portion (3) for pinning vacuum circuit breaker；
Under the job site situation that interlock cam (9) turns to centre, interlock plate (6) is upper under reset tension spring (7) effect to be moved
Reset, move on interlock plate (6) and drive interlocking shaft (10) to reversely rotate around own axes by second connecting rod structure, while interlocking
The reverse rotation of axle (10) drives separating brake to win in succession on (13) by first connecting rod structure and transfers from one place to another under escort except the main shaft part to vacuum circuit breaker
Divide the locking of (3).
2. the interlocking mechanism of vacuum circuit breaker according to claim 1 and isolator operating mechanism, it is characterised in that：Institute
State and in interlock cam (9), be provided with open slot (91), in open slot (91), be provided with what is whether opened to the door lock of controlling switch cabinet
Locking bar (14)；When interlock cam (9) turns to the maintenance position of opposite side, interlock plate (6) is moved down and is tied by second connecting rod
Structure drives interlocking shaft (10) to rotate around own axes, and the first connecting rod structure that is rotated through of interlocking shaft (10) drives separating brake to win in succession
(13) move down the main shaft portion (3) for pinning vacuum circuit breaker；Interlock cam (9) only could drive lock under the location status simultaneously
Bar (14) opens the door lock of switch cubicle.
3. the interlocking mechanism of vacuum circuit breaker according to claim 1 and isolator operating mechanism, it is characterised in that：Institute
Stating first connecting rod structure includes push rod (15) and first connecting rod (16), and the push rod (15) constrains in the first space (11) and only
Can up and down sliding, the lower end of push rod (15) win in succession with separating brake (13) be connected so that separating brake can be driven to win in succession (13) upper and lower sliding, push rod
(15) one end of upper end and the first connecting rod (16) is fixed, the other end of the first connecting rod (16) be located at the first space
(11) interlocking shaft (10) in is fixed, and first connecting rod (16) and the perpendicular setting of interlocking shaft (10).
4. the interlocking mechanism of vacuum circuit breaker according to claim 3 and isolator operating mechanism, it is characterised in that：Institute
The upper end for stating push rod (15) is provided with external screw thread to form threaded shank (151), and the threaded shank (151) of the push rod (15) is passed upwards
Under the perforation of first connecting rod (16) one end, and the first top nut (17a) and first being threadedly attached in threaded shank (151)
Nut (18a) is fixed with first connecting rod (16) by push rod (15).
5. the interlocking mechanism of vacuum circuit breaker according to claim 4 and isolator operating mechanism, it is characterised in that：Institute
Stating the first top nut (17a) and the first lower nut (18a) respectively has two；The interlocking shaft (10) is in the first space (11)
End is provided with the first half grooves (101), one end of the first connecting rod (16) shelve and pass through screw (19) be fixed on this first half
In groove (101).
6. the interlocking mechanism of vacuum circuit breaker according to claim 1 and isolator operating mechanism, it is characterised in that：Institute
Stating second connecting rod structure includes pull bar (20) and second connecting rod (21), and the lower end of the pull bar (20) is vertically fixed on interlock plate
On auxiliary section (61), the upper end of pull bar (20) is fixed with one end of the second connecting rod (21), the second connecting rod (21) it is another
One end is fixed with the interlocking shaft (10) being located in second space (12), and second connecting rod (21) is perpendicular with interlocking shaft (10) sets
Put.
7. the interlocking mechanism of vacuum circuit breaker according to claim 6 and isolator operating mechanism, it is characterised in that：Institute
The top and bottom for stating pull bar (20) are equipped with external screw thread to form upper threaded shank (201) and lower threaded shank (202), the pull bar
(20) upper threaded shank (201) passes the perforation of second connecting rod (21) one end upwards, and is threadedly attached in threaded shank
(201) the second top nut (17b) and the second lower nut (18b) on is fixed with second connecting rod (21) by pull bar (20)；The drawing
The lower threaded shank (202) of bar (20) passes downwards the perforation on the auxiliary section (61) of interlock plate, and is threadedly attached in lower spiral shell
The 3rd top nut (17c) and the 3rd lower nut (18c) in bar portion (202) is fixed with auxiliary section (61) by pull bar (20).
8. the interlocking mechanism of vacuum circuit breaker according to claim 7 and isolator operating mechanism, it is characterised in that：Institute
Stating the second top nut (17b), the second lower nut (18b), the 3rd top nut (17c) and the 3rd lower nut (18c) respectively has two；Institute
State interlocking shaft (10) the second half grooves (102), one end of the second connecting rod (21) are provided with positioned at the end in second space (12)
Shelve and pass through screw (19) to be fixed in the second half groove (102).
9. the interlocking mechanism of vacuum circuit breaker according to claim 2 and isolator operating mechanism, it is characterised in that：Institute
State and on interlock plate (6), be provided with two vertically arranged bar shaped pilot holes (62), be fixed with the second space (12) of switch cubicle
Fixed board (22), is fixed with two axis of guides (221) in fixed plate (22), each axis of guide (221) is oriented to through corresponding bar shaped
Hole (62) to the upper and lower sliding and position limitation of interlock plate (6), band moving axis (63) is fixed with interlock plate (6), the reset tension spring (7)
Upper end hooks and is located on wherein one axis of guide (221), and the lower end of reset tension spring (7) hooks and is located on band moving axis (63).
10. the interlocking mechanism of vacuum circuit breaker according to claim 2 and isolator operating mechanism, it is characterised in that：
The interlock cam (9) with two planar portions (92) and two high point portions (93), the inners of two of which planar portions (92) it
Between by arc-shaped transition, one of high point portion (93) positioned at the outer end of a planar portions (92), another high point portion (93) position
In the outer end of another planar portions (92)；Connect with the auxiliary section (61) of interlock plate in a planar portions (92) of interlock cam (9)
Under tactile state, in operating position, contact with the auxiliary section (61) of interlock plate in the high point portion (93) of the planar portions (92) outer end
Under state, in disjunction locked position of coupler, under auxiliary section (61) contact condition of another high point portion (93) with interlock plate, it is in
Maintenance position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510330208.4A CN104992858B (en) | 2015-06-15 | 2015-06-15 | Interlocking mechanism of vacuum circuit breaker and isolation switch operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510330208.4A CN104992858B (en) | 2015-06-15 | 2015-06-15 | Interlocking mechanism of vacuum circuit breaker and isolation switch operation mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104992858A CN104992858A (en) | 2015-10-21 |
| CN104992858B true CN104992858B (en) | 2017-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510330208.4A Active CN104992858B (en) | 2015-06-15 | 2015-06-15 | Interlocking mechanism of vacuum circuit breaker and isolation switch operation mechanism |
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| Country | Link |
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| CN (1) | CN104992858B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202121241U (en) * | 2011-07-11 | 2012-01-18 | 厦门明翰电气股份有限公司 | Anti-misoperation locking device for electric grounding knifeswitch of medium voltage switchgear |
| CN202423064U (en) * | 2012-01-10 | 2012-09-05 | 昆明东控电器成套设备有限公司 | Grounding switch, circuit breaker and disconnecting switch interlocking device |
| CN204740970U (en) * | 2015-06-15 | 2015-11-04 | 盛道（中国）电气有限公司 | Vacuum circuit breaker and isolator operating device's interlocking device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101087511B1 (en) * | 2009-05-21 | 2011-11-29 | 엘에스산전 주식회사 | Interlock apparatus for circuit breaker |
| KR101690132B1 (en) * | 2012-11-05 | 2016-12-27 | 엘에스산전 주식회사 | Interlock device for gas insulation switchgear |
-
2015
- 2015-06-15 CN CN201510330208.4A patent/CN104992858B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202121241U (en) * | 2011-07-11 | 2012-01-18 | 厦门明翰电气股份有限公司 | Anti-misoperation locking device for electric grounding knifeswitch of medium voltage switchgear |
| CN202423064U (en) * | 2012-01-10 | 2012-09-05 | 昆明东控电器成套设备有限公司 | Grounding switch, circuit breaker and disconnecting switch interlocking device |
| CN204740970U (en) * | 2015-06-15 | 2015-11-04 | 盛道（中国）电气有限公司 | Vacuum circuit breaker and isolator operating device's interlocking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104992858A (en) | 2015-10-21 |
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