CN207529893U - A kind of circuit breaker operation mechanism - Google Patents
A kind of circuit breaker operation mechanism Download PDFInfo
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- CN207529893U CN207529893U CN201721612483.6U CN201721612483U CN207529893U CN 207529893 U CN207529893 U CN 207529893U CN 201721612483 U CN201721612483 U CN 201721612483U CN 207529893 U CN207529893 U CN 207529893U
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- connecting rod
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- separating brake
- piece
- energy storage
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Abstract
A kind of circuit breaker operation mechanism, including a pair of side plates, a main shaft, the energy storage lever assembly and link assembly being arranged between a pair of side plates, energy storage lever assembly swings and pushes link assembly and drive main axis by link assembly, breaker contact system is driven to carry out feed motion after main axis, link assembly includes first connecting rod, second connecting rod and selector bar, one end of first connecting rod is hinged with being fixed on one end of hinged main axis piece, the other end and second connecting rod, and the other end of second connecting rod and a swinging end of selector bar are hinged；Energy storage lever assembly includes energy storage lever piece, and energy storage lever piece is formed towards the side of link assembly stroke face, and the trip face pushes connecting rod hinging pin shaft, and stroke face includes a cancave cambered surface, and cancave cambered surface pushes connecting rod hinging pin shaft.It can make to obtain excellent fiting effect between energy storage lever assembly and link assembly, ensure the higher transmission efficiency of operating mechanism and operating mechanism itself is able to cross dead point easily and enters self-locking state.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of circuit breaker operation mechanism.
Background technology
Breaker carries the effect of electrical equipment in protection power grid as a kind of controller switching equipment, i.e., when occurring in power grid
Failure, such as when having short circuit current or fault current, breaker disjunction electric current, to protect electrical equipment and the personnel in power grid
Safety.To realize above-mentioned defencive function, operating mechanism is equipped in circuit breaker internal, it can be by controlling zero inside operating mechanism
The movement of component, detach the dynamic and static contact of breaker, so as to cut off circuit.
With the continuous improvement of breaker performance indicator, the energy provided needed for circuit breaker operation mechanism is also continuously improved.
Usual operating mechanism is internally provided with energy storage component, which is used to store energy for the movement of operating mechanism,
When operating mechanism is acted, energy energy storage component just releases energy.Operating mechanism further includes an energy storage lever, connection component
And main shaft, energy storage lever are used to transmit the energy that energy storage component is discharged to connection component, link assembly is operation machine
The core of structure is used to receive the energy that energy storage lever assembly is passed over, and drive spindle swing, and the pendulum of main shaft
Kinetic energy drives the contact system action of circuit breaker internal, i.e. the conjunction transfer of contact system is made.Aforementioned link assembly needs pass through
4th, the switching between five connection systems drives main shaft forward or reverse to meet, to realize the feed motion of contact system and divide
Lock acts, and energy storage lever is since it needs coupler link component, specifically, can push connection rod set after the rotation of energy storage lever stress
Part, and link assembly is driven to act, and energy storage lever and Impact direction of the connection component in entire motion process between the two
The transmission efficiency of energy is determined with relationship；Secondly, after operating mechanism completes feed motion, aforementioned link assembly is both needed to locate
In a self-locking state, "on" position is kept, and link assembly is realized typically by way of itself locking after crossing dead point, because
How this makes operating mechanism more be readily achieved self-locking state is whether measurement or evaluation operating mechanism are excellent important in itself
Index.
However, the raising due to energy often has an impact mechanical life, that is, mechanical life is caused to decline, therefore visited
The circuit breaker operation mechanism that rope transmission efficiency and being more advantageous to crosses dead point has positive effect, technology described below
Scheme generates in this background.
Invention content
The task of the utility model is that providing one kind contributes to enhancement energy storage lever assembly closing a floodgate with link assembly
Excellent fiting effect in journey and use and ensure that operating mechanism embodies higher transmission efficiency and operating mechanism itself is able to easily
Cross the circuit breaker operation mechanism that dead point enters self-locking state in ground.
What the task of the utility model was performed by, a kind of circuit breaker operation mechanism, including the setting that faces each other
A pair of side plates, a main shaft, the energy storage lever assembly and link assembly being arranged between a pair of side plates, energy storage lever assembly pendulum
It moves and pushes link assembly and main axis is driven by link assembly, breaker contact system is driven to close a floodgate after main axis
Action, wherein：The link assembly includes first connecting rod, second connecting rod and selector bar, and one end of first connecting rod is with being fixed on
Main axis piece on main shaft is hinged, and the other end of first connecting rod is cut with scissors by one end of connecting rod hinging pin shaft and second connecting rod
It connects, the other end of second connecting rod and a swinging end of selector bar are hinged；The energy storage lever assembly includes energy storage lever piece, storage
Energy lever piece is formed towards the side of the link assembly stroke face, and the trip face pushes the connecting rod hinging pin shaft, institute
The stroke face stated includes a cancave cambered surface, and cancave cambered surface pushes the connecting rod hinging pin shaft.
In a specific embodiment of the utility model, the both ends of the connecting rod hinging pin shaft respectively lean out first connecting rod
Side and it is each be rotationally provided with a press-on roller, the energy storage lever piece is a pair, and the stroke face is a pair,
It is located at a pair of of energy storage lever on piece respectively, the press-on roller is corresponding with the cancave cambered surface in the stroke face and and cancave cambered surface
Form rolling pair.
In another specific embodiment of the utility model, in the pair of energy storage of the energy storage lever assembly
A fixed hub is fixed between lever piece and is fixed at intervals one group of energy storage lever piece fixing axle.
In another specific embodiment of the utility model, the operating mechanism has further included a separating brake semiaxis,
The separating brake semiaxis is rotatably arranged between described a pair of side plates；The link assembly has further included a separating brake lever, institute
The selector bar stated is rotatably arranged between a pair of side plates, and the one end of the selector bar far from the second connecting rod is configured to convert lever lock
End of thread, selector bar lock end and the separating brake lever snap fit, and separating brake lever and the separating brake semiaxis snap fit；
A selector bar rotation axis is provided on selector bar, selector bar is rotatably arranged on by selector bar rotation axis in a pair of side plates.
In another specific embodiment of the utility model, the first connecting rod is identical by a pair of of form from one another
And it is collectively formed in the first connecting rod piece that sets face-to-face, which passes through main axis piece swivel pin
Axis is hinged with the main axis piece being fixed on the main shaft, and the both ends of the connecting rod hinging pin shaft respectively lean out a pair first
Connecting rod piece is provided with a limit shaft sleeve on the position on the connecting rod hinging pin shaft and between a pair of of first connecting rod piece,
A limiting protruding shaft is provided between described a pair of side plates and in the position corresponding to limit shaft sleeve, when the first connecting rod
And second connecting rod by the energy storage lever assembly driving and driving in place when, the limit shaft sleeve and the limiting protruding shaft
Contact.
In the utility model there are one in specific embodiment, the second connecting rod is identical by a pair of of form from one another
And the second connecting rod piece that sets face-to-face collectively form, which probes into the company of a pair first
By the connecting rod hinging pin shaft and a pair first between bar piece and in the position for corresponding respectively to the both sides of the limit shaft sleeve
Connecting rod piece is hinged, the connecting rod piece selector bar hinging pin shaft and the conversion of the other end of a pair of of second connecting rod piece by second connecting rod
One swinging end of bar is hinged.
In the utility model more and in a specific embodiment, the separating brake lever is mutually formed by a pair to be faced
The separating brake lever piece composition of the position relationship in face, this is fixed in separating brake thick stick to the one end of separating brake lever piece far from the separating brake semiaxis
On the separating brake lever rotation axis of bar, and it is additionally provided with to ensure that a pair of of separating brake lever piece interval is set between a pair of of separating brake lever piece
The separating brake lever fixing axle put, one end of a pair of of separating brake lever piece towards separating brake semiaxis is configured to swinging end, in separating brake semiaxis
There are separating brake semiaxis slot, swinging end and the separating brake semiaxis slot snap fit corresponding to the region composition of the swinging end, in a pair point
One is additionally provided between brake lever rod piece for the separating brake lever lock shaft with the selector bar lock end snap fit, the separating brake
Lever lock shaft is located between a pair of of separating brake lever piece.
The utility model so that in a specific embodiment, formed between the first connecting rod and second connecting rod
Angle angle center line on the basis of, when the beginning that the cancave cambered surface in the stroke face is contacted with the press-on roller, stroke face
The direction of thrust generated to press-on roller is close to the side of first connecting rod.
The utility model again more and in a specific embodiment, the stroke in face of the press-on roller generate
An angle α is formed between the centerline direction of angle between the direction of thrust and the first connecting rod and second connecting rod, it should
Angle α is 5-10 °.
In the utility model again and then in a specific embodiment, the stroke face has further included a convex globoidal,
The convex globoidal is located at the end of the cancave cambered surface, during pushing the connecting rod hinging pin shaft in stroke face, takes the lead in by concave arc
Face pushes connecting rod hinging pin shaft, then pushes connecting rod hinging pin shaft by convex globoidal.
Technical solution provided by the utility model has technical effect that：Due to the structural system in energy storage lever assembly
Being formed on the stroke face of energy storage lever piece has cancave cambered surface, when pushing connecting rod hinging pin shaft by the cancave cambered surface, connecting rod hinging pin shaft energy
The track movement of cancave cambered surface is follow, thus during breaker closing, can make to obtain between energy storage lever assembly and link assembly
Excellent fiting effect is obtained, ensures that operating mechanism embodies higher transmission efficiency and operating mechanism itself is crossed easily
Dead point enters self-locking state.
Description of the drawings
Fig. 1 is the utility model circuit breaker operation mechanism decomposition diagram.
Fig. 2 is energy storage lever assembly and the first state figure of link assembly cooperation in the utility model.
Fig. 3 is energy storage lever assembly and the second state diagram of link assembly cooperation in the utility model.
Fig. 4 is energy storage lever assembly and the third state figure of link assembly cooperation in the utility model.
Fig. 5 is energy storage lever assembly and the 4th state diagram of link assembly cooperation in the utility model.
Fig. 6 is schematic diagrames of the Fig. 1 to energy storage lever assembly shown in fig. 5.
Fig. 7 is Fig. 1 to link assembly shown in fig. 6 and the cooperation schematic diagram of separating brake semiaxis.
Fig. 8 is first, second connecting rod of link assembly shown in Fig. 7 and the detailed structure view of selector bar.
Fig. 9 is the detailed structure view of separating brake lever shown in Fig. 8.
Figure 10 is stroke face and link assembly force analysis figure in the utility model.
Specific embodiment
Fig. 1 to Fig. 5 is referred to, a pair of side plates 1 for the setting that faces each other is shown in FIG. 1, a main shaft 2, is arranged on
An energy storage lever assembly 4 and link assembly 6, energy storage lever assembly 4 swing and push link assembly 6 simultaneously between a pair of side plates 1
Main shaft 2 is driven to rotate by link assembly 6, the contact system feed motion of breaker is driven by the rotation of main shaft 2.And also show
Gone out to also belong to the energy-stored spring component 3 of the structural system of circuit breaker operation mechanism, closing lever component 7, separating brake semiaxis 8,
Floodgate semiaxis 9 and operation button 10.
Aforementioned a pair of side plates 1 maintains interval each other, i.e. a pair of side plates 1 is separated by setting with aspectant state, usually
Fixing axle is set between a pair of side plates 1, it is an overall structure to make a pair of side plates 1 connected to each other by fixing axle.Aforementioned
Energy-stored spring component 3 understands that it is used for energy storage from its noun paraphrase, and energy storage is alternatively referred to as energy accumulation, the general shape for using spring
Formula stores energy（The utility model is such）.When driving force such as motor-operating mechanism exports energy by energy-stored spring component
After 3 spring-compressed, i.e., when the spring of the structural system of energy-stored spring component 3 is in compressive state, then show energy-stored spring group
Part 3 completes the storage of energy.
Cam pack 5 is also rotationally provided between aforementioned a pair of side plates 1, the cam pack 5 is aforementioned for controlling
Energy storage lever assembly 4, in particular, energy storage lever assembly 4 whether can freely activity depend on cam pack 5.More specifically
Ground is said, when cam pack 5 releases the control to energy storage lever assembly 4, energy-stored spring component 3 is just able to driving energy storage lever group
Part 4 rotates, and completes the action to release energy, otherwise same example.
It refers to Fig. 6 to Fig. 9 and combines Fig. 1 to Fig. 5, aforementioned link assembly 6 includes first connecting rod 61, second connecting rod
62 and selector bar 63, one end of first connecting rod 61 and the main axis piece 21 being fixed on main shaft 2 are hinged, and first connecting rod 61
The other end is hinged by connecting rod hinging pin shaft 612 and one end of second connecting rod 62, the other end and the selector bar 63 of second connecting rod 62
A swinging end be hinged, which is rotatably arranged between a pair of side plates 1, and selector bar 63 is far from aforementioned second connecting rod 62
One end be configured to selector bar lock end 634；Aforementioned energy storage lever assembly 4 includes energy storage lever piece 41, it is preferred that described
Energy storage lever piece 41 is a pair of, and the fixation that faces each other.This to energy storage lever piece 41 towards the side of aforementioned link assembly 6
Each form has one stroke face 411, and aforementioned connecting rod hinging pin shaft 612 is pushed by the trip face 411.
Technical essential as technical solution provided by the utility model：Aforementioned stroke face 411 includes a cancave cambered surface
4111, aforementioned connecting rod hinging pin shaft 612 is pushed by the cancave cambered surface 4111.Cancave cambered surface 4111 is for connecting rod hinging pin shaft 612
Force direction is more biased towards the center line of the angle between first connecting rod 61 and second connecting rod 62.It follows that in stroke face 411
The upper cancave cambered surface 4111 that formed is conducive to the track movement that connecting rod hinging pin shaft 612 follows cancave cambered surface 4111, in breaker closing mistake
Cheng Zhongneng makes to obtain ideal fiting effect between energy storage lever assembly 4 and link assembly 6, and it is higher to ensure that operating mechanism has
Transmission efficiency and operating mechanism itself can cross dead point easily and enter self-locking state.
The both ends of aforementioned connecting rod hinging pin shaft 612 respectively lean out the side of first connecting rod 61 and are respectively rotationally provided with one and push away
Nip drum 615（Also can claim " pushing axis ", it is the same below）, the press-on roller 615 and 4111 phase of cancave cambered surface in aforementioned stroke face 411
It corresponds to and forms rolling pair with cancave cambered surface 4111.
As shown in Figure 6, it is fixed at intervals one group of storage between a pair of of energy storage lever piece 41 of aforementioned energy storage lever assembly 4
It can lever piece fixing axle 42（The present embodiment is three）With a fixed hub 45, fixed hub 45 is located at a pair of of energy storage lever piece
Middle part between 41, the both ends of fixed hub 45 are fixed, and the fixed hub 45 is solid by it with a pair of of energy storage lever piece 41
Dead axle sets of holes 451 are sleeved on fixed hub axis 452, and the two supports of the fixed hub axis 452 are in aforementioned a pair of side plates 1.
From the above-mentioned explanation to link assembly 6 and with reference to attached drawing：Link assembly 6 is essentially first, second company
The orderly hinged rod piece of bar 61,62 and 63 three of selector bar, by locking or unlocking for a wherein rod piece, can form double leval jib
System or five push and pull system, the action of link assembly 6 is driven by aforementioned energy storage lever assembly 4, i.e., by energy storage lever assembly 4
Link assembly 6 is driven to act, since the first connecting rod in link assembly 6 and aforementioned main axis piece 21 are hinged, thus in connecting rod
Component 6 drives main shaft 2 to rotate after acting.Main shaft 2 tends to the side of a pair of side plates 1, so as to close to breaker circuit breaker base,
Main shaft 2 is enable to be connect with the contact system in circuit breaker base.
Aforementioned separating brake semiaxis 8 is rotatably arranged at aforementioned a pair in the position of the upper end corresponding to aforementioned selector bar 63
Between side plate 1；Aforementioned link assembly 6 has further included a separating brake lever 64, aforementioned selector bar lock end 634 and the separating brake thick stick
64 snap fit of bar, and separating brake lever 64 and aforementioned 8 snap fit of separating brake semiaxis；The middle part of selector bar 63 is provided with one turn
Bar rotation axis 635 is changed, the both ends of the selector bar rotation axis 635 are rotatably arranged in aforementioned a pair of side plates 1.Aforementioned combined floodgate half
Axis 9 and closing lever component 7 are similarly disposed between a pair of side plates 1.
Aforementioned separating brake semiaxis 8 and floodgate semiaxis 9 is valve member, and separating brake semiaxis 8 carries out separating brake for trigger action mechanism
Action, and floodgate semiaxis 9 carries out feed motion for trigger action mechanism.Specifically, after separating brake semiaxis 8 is rotated by instruction,
Separating brake semiaxis 8 releases the blocking for link assembly 6, and link assembly 6 is made to be changed into five push and pull system from four-bar linkage system, and then
Separating brake movement occurs for link assembly 6, and main shaft 2 is driven to pull open contact system.And after floodgate semiaxis 9 is rotated by instruction, it closes a floodgate
Semiaxis 9 releases the locking to closing lever component 7, the locking after the rotation of closing lever component 7 to cam pack 5, cam pack 5
The locking to energy storage lever assembly 4 is released, at this point, energy-stored spring component 3 can release energy, and drives 4 turns of energy storage lever assembly
Dynamic, energy storage lever assembly 4 collides link assembly 6 after rotating so that each rod piece of the link assembly 6 under four-bar linkage system at this time
It swings, and then main shaft 2 is driven to be closed contact system.Aforementioned operation button 10 is used to be triggered by the manpower of operator,
And the separating brake semiaxis 8 and floodgate semiaxis 9 is driven to act.
As shown in Figure 6, the geometry of aforementioned a pair of of energy storage lever piece 41 is in Cyclic dart shape（Also can claim " Hui Libiao "
Shape）, which is formed with a turning, and aforementioned fixed hub 45 is arranged on the corner, specifically：
Fixed hub 45 passes through two energy storage lever pieces 41, and is fixed with a pair of of energy storage lever piece 41.The fixed form of fixed hub 45 can
To be to open up a circular hole in the corresponding position of a pair of of energy storage lever piece 41, and the both ends of fixed hub 45 snap onto this to circular hole
In after it is fixed.
It is equipped in one end of aforementioned a pair of of energy storage lever piece 41 for the promotion with 3 phase press-fit of energy-stored spring component
Axis 43（Fig. 6 shows）, i.e., aforementioned energy-stored spring component 3 release energy stretching when, push impeller-hub 43, so as to drive energy storage thick stick
Bar assembly 4 rotates, be equipped on the other end of a pair of of energy storage lever piece 41 for cam pack 5 lean cooperation against axis
44（Fig. 6 shows）, it is a pair against axis 44, and protruding from the opposite side of a pair of of energy storage lever piece 41 respectively, so as to
It leans with the cam pack 5 positioned at 41 liang of outsides of energy storage lever piece.Aforementioned refers to against cooperation：It is resisted against against axis 44 convex
In the outer rim of wheel assembly 5, since the outer rim of cam pack 5 is involute surface.Therefore, the rotational angle of cam pack 5 and storage
The swing angle of energy lever assembly 4 is one-to-one.In order to fully reduce against the friction between axis 44 and cam pack 5
Power, can be against rotatable axle sleeve be set on axis 44, to realize the effect for reducing frictional force.Or it described is adopted against axis 44
The effect of reduction frictional force is realized with rolling bearing.
See Fig. 2, aforementioned main shaft 2 is an axial workpiece, is rotatably arranged on the outside of circuit breaker base, and operating mechanism moves
Main shaft 2 is driven to rotate after work, and main shaft 2 drives the contact system of circuit breaker internal to be acted after rotating.It is aforementioned tactile for correspondence
The quantity of head system is equipped with the fin equal with the quantity of contact system on aforementioned main shaft 2, and fin is fixed on main shaft 2,
And main shaft 2 can be followed to rotate together, so as to be acted with movable contact system.
Since the middle part of aforementioned selector bar 63 is rotatably arranged on a pair of side plates 1 by aforementioned selector bar rotation axis 635
Between, thus the motion mode of selector bar 63 is rotated with selector bar rotation axis 635 for center of rotation, and due to selector bar 63 with
One end of 64 snap fit of separating brake lever and separating brake lever 64 is rotatably arranged on a pair of side plates by separating brake lever rotation axis 641
Between 1, at the same aforementioned separating brake lever 64 also with 8 snap fit of separating brake semiaxis, thus above-mentioned snap fit refer to have lock
Fixed and unlock two states.
Aforementioned first connecting rod 61 is identical by a pair of of form from one another and is total in the first connecting rod piece 613 set face-to-face
With forming, the one end to first connecting rod piece 613 is by main axis piece hinging pin shaft 611 and is fixed on aforementioned main shaft 2
Main axis piece 21 is hinged, and the both ends of aforementioned connecting rod hinging pin shaft 612 respectively lean out the away from one another of a pair of of first connecting rod piece 613
Side is provided with a limit shaft sleeve on the position on the connecting rod hinging pin shaft 612 and between a pair of of first connecting rod piece 613
614, a limiting protruding shaft 65 is provided between aforementioned a pair of side plates 1 and in the position corresponding to limit shaft sleeve 614（Also may be used
Claim " limit shaft "）, when aforementioned first connecting rod 61 and second connecting rod 62 by the driving of aforementioned energy storage lever assembly 4 and are driving
When in place, aforementioned limit shaft sleeve 614 is contacted with aforementioned limiting protruding shaft 65.
Aforementioned second connecting rod 62 is identical by a pair of of form from one another and the second connecting rod piece 621 that sets face-to-face is common
It forms, which probes between a pair of of first connecting rod piece 613 and corresponding respectively to
The position for stating the both sides of limit shaft sleeve 614 is hinged by the connecting rod hinging pin shaft 612 and a pair of of first connecting rod piece 613, Yi Dui
The other end of two connecting rod pieces 621 is hinged by connecting rod piece selector bar hinging pin shaft 622 and a swinging end of aforementioned selector bar 63.
When aforementioned 4 drive link component 6 of energy storage lever assembly acts, aforementioned limiting is pushed by a pair of of energy storage lever piece 41
Axle sleeve 614（Also can claim " pushing axis "）, so as to make first connecting rod 61 and second connecting rod 62 straight and upright.The effect of limit shaft sleeve 614 is：
After first connecting rod 61 and second connecting rod 62 are driven by energy storage lever assembly 4 and are moved in place, limit shaft sleeve 614 and aforementioned limit
Position protruding shaft 65 contacts, and makes the first connecting rod 61 of link assembly 6 and second connecting rod 62 is maintained at state in place.
See Fig. 8, selector bar 63 is sheet, is usually process by metallic plate, which has one to supply selector bar 63
The selector bar mounting hole 631 of rotational installation, for the selector bar hinged end 632 hinged with second connecting rod 62, for being affiliated to spring
Selector bar spring be affiliated to end 633 and for 64 snap fit of separating brake lever and latched in the selector bar that has already mentioned above
End 634.Selector bar lock end 634 is a notch, and aforementioned selector bar rotation axis 635 is inserted into selector bar mounting hole 631, and is turned
Bar rotation axis 635 is changed between a pair of side plates 1.The rotating manner of selector bar 63 is is rotation with selector bar rotation axis 635
The rotation at center.In order to meet the installation dimension of second connecting rod 62, selector bar hinged end 632 is configured to narrowing portion.
Please emphasis see Fig. 7 and Fig. 9, aforementioned separating brake lever 64 is identical by a pair of of form from one another and mutually forms face-to-face
The separating brake lever piece 642 of position relationship form, this is fixed in the one end of separating brake lever piece 642 far from aforementioned separating brake semiaxis 8
The middle part of separating brake lever rotation axis 641, and the both ends of the separating brake lever rotation axis 641 are rotatably arranged on an aforementioned offside respectively
On plate 1, and it is additionally provided with to ensure a pair of of 642 spaced separating brake of separating brake lever piece between a pair of of separating brake lever piece 642
Lever fixing axle 643, a pair of of separating brake lever piece 642 is configured to swinging end 6421 towards one end of separating brake semiaxis 8, in separating brake semiaxis
It 8 middle part and is formed in the region corresponding to aforementioned swinging end 6421 and has a separating brake semiaxis slot 81, swinging end 6421 and the separating brake
Half axial trough, 81 snap fit, i.e. separating brake semiaxis slot 81 are matched with swinging end 6421, are also set between a pair of of separating brake lever piece 642
One is equipped with for the separating brake lever lock shaft 644 with the selector bar of aforementioned selector bar 63 lock 634 snap fit of end, the separating brake thick stick
Lever lock buckle shaft 644 is located between a pair of of separating brake lever piece fixing axle 643.Since aforementioned separating brake semiaxis 8 is the prior art, thus
Applicant repeats no more.
As shown in Figure 6, aforementioned stroke face 411 has further included a convex globoidal 4112, i.e., goes back structure on aforementioned stroke face 411
Cheng Youyi convex globoidals 4112, the convex globoidal 4112 are located at the end of aforementioned cancave cambered surface 4111（Also can claim " tip "）, in stroke face
During 411 push aforementioned connecting rod hinging pin shafts 612, take the lead in pushing connecting rod hinging pin shaft 612 by cancave cambered surface 4111, then by
Convex globoidal 4112 pushes connecting rod hinging pin shaft 612.It is preferably designed between aforementioned cancave cambered surface 4111 and convex globoidal 4112 smooth
Transition.
Continue to see Fig. 2 to Fig. 5, aforementioned energy storage lever assembly 4 pushes the conjunction that the process of link assembly 6 is operating mechanism
Lock process, at this time since separating brake semiaxis 8 does not receive external separating brake instruction, separating brake semiaxis 8 does not rotate, and in separating brake semiaxis 8
Separating brake semiaxis slot 81 clasped separating brake lever 64, separating brake lever 64 can not rotate, separating brake lever on separating brake lever 64 lock
Axis 644 has clasped the selector bar lock end 634 on selector bar 63 so that and selector bar 63 can not rotate, and aforementioned at this time the
One connecting rod 61, second connecting rod 62, main axis piece 21 and the center of rotation of main shaft 2 and connecting rod piece selector bar hinging pin shaft 622
Between fixed range formed a four-bar linkage structure.See Fig. 2, energy storage lever assembly 4 is driven by energy-stored spring component 3 and pushed away at this time
During dynamic link assembly 6, the cancave cambered surface 4111 on stroke face 411 pushes press-on roller 615 to move, and then first connecting rod 61 and second
Connecting rod 62 is mutually straight and upright, it may also be said to be that first connecting rod 61 is transported with second connecting rod 62 towards the widened direction in obtuse angle between the two
It is dynamic.See Fig. 3, energy storage lever assembly 4 continues to press on link assembly 6 and acts, and the press-on roller 615 described at this time is still in concave arc
On face 4111, first connecting rod 61 and second connecting rod 62 continue mutually straight and upright, it may also be said to be first connecting rod 61 and second connecting rod 62
Continue towards the widened direction movement in obtuse angle between the two.In the mistake that above-mentioned cancave cambered surface 4111 and press-on roller 615 coordinate
Cheng Zhong, cancave cambered surface 4111 have notable difference relative to plane or convex surface.Using cancave cambered surface 4111 so that cancave cambered surface 4111
For during above-mentioned the two contacts with each other, being more biased towards on the direction of the power of press-on roller 615 in 61 He of first connecting rod
The center line of angle between second connecting rod 62, thus it is more advantageous to first connecting rod 61 and second connecting rod 62 is straight and upright, have higher
Transmission efficiency.See Fig. 4, press-on roller 615 enters convex globoidal 4112 at this time, and press-on roller 615 is pushed by convex globoidal 4112.
First connecting rod 61 and second connecting rod 62 are straight and upright.See Fig. 5, energy storage lever assembly 4 is swung to be no longer rotated in place, at this time press-on roller
615 leave aforementioned convex globoidal 4112 due to inertia, and first connecting rod 61 and second connecting rod 62 have been subjected to the straight and upright position of the two,
It collides the limiting protruding shaft 65 being fixed on side plate 1 after continuing movement and is in the lock state.Specifically, aforementioned limit shaft sleeve
614 collide with the limiting protruding shaft 65 on side plate 1.During above-mentioned convex globoidal 4112 pushes press-on roller 615 to act, adopt
There are significant efforts with convex globoidal 4112, reason for this is that：Convex globoidal 4112, can be in energy storage thick stick with respect to plane or cancave cambered surface
When bar assembly 4 is swung together angularly, the press-on roller 615 generates the displacement of bigger, so as to which press-on roller 615 can have
Faster movement speed pushes link assembly 6 to reach combined floodgate precalculated position more easily.
Figure 10 is referred to, the angle center line of the angle formed between aforementioned first connecting rod 61 and second connecting rod 62 is base
Standard, when the beginning that the cancave cambered surface 4111 in aforementioned stroke face 411 is contacted with aforementioned press-on roller 615, stroke face 411 is to press-on roller
The direction of 615 thrusts generated is close to the side of first connecting rod 61.
The direction for the thrust that aforementioned stroke face 411 generates aforementioned press-on roller 615 and aforementioned first connecting rod 61 and the
An angle α is formed between the center angular direction of angle between two connecting rods 62, which is preferably 5-10 °.
Continue to see the driving force situation that Figure 10, Figure 10 show aforementioned stroke face 411 and link assembly 6, more specifically
It says, Figure 10 is the cancave cambered surface 4111 in stroke face 411 and pushes the Driving force analyzing figure between axis 615.Aforementioned first connecting rod 61
Angle between second connecting rod 62 refers to that first between main axis piece hinging pin shaft 611 and connecting rod hinging pin shaft 612 connects
The second line between line and connecting rod hinging pin shaft 612 and connecting rod piece selector bar hinging pin shaft 622, i.e. the first line and second connect
The angle that line is formed.Shown by multiple experiment：It is preceding when the cancave cambered surface 4111 in stroke face 411 is just contacted with press-on roller 615
The stroke face 411 stated is for pushing the direction of the power of roller 615 that should be partial to 62 angle center of first connecting rod 61 and second connecting rod
61 side of close first connecting rod of line.
In conclusion energy storage lever assembly 4 and the link assembly 6 of the utility model design in making process with more excellent
Different fiting effect so that operating mechanism making process is more stablized, reliably, at the same can provide operating mechanism it is whole can
By property.
Claims (10)
1. a kind of circuit breaker operation mechanism, a pair of side plates (1) including the setting that faces each other, are arranged on a pair at a main shaft (2)
An energy storage lever assembly (4) and link assembly (6) between side plate (1), energy storage lever assembly (4) swing and push link assembly
(6) and by link assembly (6) main shaft (2) is driven to rotate, breaker contact system is driven to carry out combined floodgate after main shaft (2) rotation dynamic
Make, wherein：The link assembly (6) includes first connecting rod (61), second connecting rod (62) and selector bar (63), first connecting rod
(61) one end and the main axis piece (21) being fixed on main shaft (2) are hinged, and the other end of first connecting rod (61) passes through company
Bar hinging pin shaft (612) and one end of second connecting rod (62) are hinged, the other end of second connecting rod (62) and the one of selector bar (63)
Swinging end is hinged；The energy storage lever assembly (4) includes energy storage lever piece (41), and energy storage lever piece (41) is towards the connecting rod
The side of component (6), which is formed, stroke face (411), and the trip face (411) push the connecting rod hinging pin shaft (612), special
Sign is that the stroke face (411) includes a cancave cambered surface (4111), and cancave cambered surface (4111) pushes the connecting rod hinging pin shaft
(612)。
2. a kind of circuit breaker operation mechanism according to claim 1, it is characterised in that the connecting rod hinging pin shaft (612)
Both ends respectively lean out the side of first connecting rod (61) and are respectively rotationally provided with a press-on roller (615), the energy storage lever
Piece (41) is a pair, and the stroke face (411) is a pair, is located at respectively on a pair of of energy storage lever piece (41), the pushing
Roller (615) is corresponding with the cancave cambered surface (4111) of the stroke face (411) and forms rolling pair with cancave cambered surface (4111).
3. a kind of circuit breaker operation mechanism according to claim 2, it is characterised in that in the energy storage lever assembly (4)
The pair of energy storage lever piece (41) between be fixed with a fixed hub (45) and be fixed at intervals one group of energy storage lever piece
Fixing axle (42).
4. a kind of circuit breaker operation mechanism according to claim 1, it is characterised in that the operating mechanism has further included
One separating brake semiaxis (8), the separating brake semiaxis (8) are rotatably arranged between described a pair of side plates (1)；The link assembly
(6) a separating brake lever (64) has been further included, the selector bar (63) is rotatably arranged between a pair of side plates (1), the selector bar
(63) one end far from the second connecting rod (62) is configured to selector bar lock end (634), selector bar lock end (634) and institute
State separating brake lever (64) snap fit, and separating brake lever (64) and described separating brake semiaxis (8) snap fit；In selector bar (63)
On be provided with a selector bar rotation axis (635), selector bar (63) is rotatably arranged on a pair of side plates by selector bar rotation axis (635)
(1) on.
5. a kind of circuit breaker operation mechanism according to claim 1, it is characterised in that the first connecting rod (61) is by one
Identical to form from one another and collectively formed in the first connecting rod piece (613) that sets face-to-face, this is to first connecting rod piece (613)
One end pass through main axis piece hinging pin shaft (611) and the main axis piece (21) that is fixed on the main shaft (2) is cut with scissors
It connects, the both ends of the connecting rod hinging pin shaft (612) respectively lean out a pair of of first connecting rod piece (613), in the connecting rod hinging pin shaft (612)
It goes up and is located on the position between a pair of of first connecting rod piece (613) and be provided with a limit shaft sleeve (614), in described a pair of side plates
(1) a limiting protruding shaft (65) is provided between and in the position corresponding to limit shaft sleeve (614), when the first connecting rod
(61) and second connecting rod (62) by the energy storage lever assembly (4) driving and driving in place when, the limit shaft sleeve
(614) it is contacted with the limiting protruding shaft (65).
6. a kind of circuit breaker operation mechanism according to claim 5, it is characterised in that the second connecting rod (62) is by one
Second connecting rod piece (621) that is identical to form from one another and setting face-to-face collectively forms, this is to second connecting rod piece (621)
One end is probeed between a pair of of first connecting rod piece (613) and in the both sides for corresponding respectively to the limit shaft sleeve (614)
Position it is hinged by the connecting rod hinging pin shaft (612) and a pair of of first connecting rod piece (613), a pair of of second connecting rod piece (621)
The other end is cut with scissors by the connecting rod piece selector bar hinging pin shaft (622) of second connecting rod (62) and a swinging end of the selector bar (63)
It connects.
7. a kind of circuit breaker operation mechanism according to claim 4, it is characterised in that the separating brake lever (64) is by one
The separating brake lever piece (642) for mutually forming aspectant position relationship is formed, this is to separating brake lever piece (642) far from described point
One end of lock semiaxis (8) is fixed on the separating brake lever rotation axis (641) of separating brake lever (64), and in a pair of of separating brake lever piece
(642) it is additionally provided between for ensureing the spaced separating brake lever fixing axle (643) of a pair of of separating brake lever piece (642), it is a pair of
One end of separating brake lever piece (642) towards separating brake semiaxis (8) is configured to swinging end (6421), corresponds in separating brake semiaxis (8)
The region of the swinging end (6421), which is formed, separating brake semiaxis slot (81), and swinging end (6421) is latched with the separating brake semiaxis slot (81)
Cooperation is additionally provided with one for latching end (634) snap fit with the selector bar between a pair of of separating brake lever piece (642)
Separating brake lever lock shaft (644), the separating brake lever lock shaft (644) is between a pair of of separating brake lever piece (642).
8. a kind of circuit breaker operation mechanism according to claim 2, it is characterised in that with the first connecting rod (61) and the
On the basis of the angle center line of the angle formed between two connecting rods (62), when the stroke face (411) cancave cambered surface (4111) with
Press-on roller (615) contact begin when, stroke face (411) to the direction of thrust that press-on roller (615) generates close to
The side of first connecting rod (61).
9. a kind of circuit breaker operation mechanism according to claim 2, it is characterised in that the stroke face (411) pushes away to described
The center of angle between the direction of thrust of nip drum (615) generation and the first connecting rod (61) and second connecting rod (62)
An angle α is formed between line direction, which is 5-10 °.
10. a kind of circuit breaker operation mechanism according to claim 1, it is characterised in that also wrap in the stroke face (411)
A convex globoidal (4112) is included, which pushes positioned at the end of the cancave cambered surface (4111) in stroke face (411)
During the connecting rod hinging pin shaft (612), take the lead in by cancave cambered surface (4111) push connecting rod hinging pin shaft (612), then by
Convex globoidal (4112) pushes connecting rod hinging pin shaft (612).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612483.6U CN207529893U (en) | 2017-11-28 | 2017-11-28 | A kind of circuit breaker operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721612483.6U CN207529893U (en) | 2017-11-28 | 2017-11-28 | A kind of circuit breaker operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207529893U true CN207529893U (en) | 2018-06-22 |
Family
ID=62580893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721612483.6U Withdrawn - After Issue CN207529893U (en) | 2017-11-28 | 2017-11-28 | A kind of circuit breaker operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207529893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749383A (en) * | 2017-11-28 | 2018-03-02 | 常熟开关制造有限公司(原常熟开关厂） | A kind of circuit breaker operation mechanism |
| WO2021062922A1 (en) * | 2019-09-30 | 2021-04-08 | 上海良信电器股份有限公司 | Locking mechanism of circuit breaker |
-
2017
- 2017-11-28 CN CN201721612483.6U patent/CN207529893U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749383A (en) * | 2017-11-28 | 2018-03-02 | 常熟开关制造有限公司(原常熟开关厂） | A kind of circuit breaker operation mechanism |
| CN107749383B (en) * | 2017-11-28 | 2019-11-08 | 常熟开关制造有限公司(原常熟开关厂） | A kind of circuit breaker operation mechanism |
| WO2021062922A1 (en) * | 2019-09-30 | 2021-04-08 | 上海良信电器股份有限公司 | Locking mechanism of circuit breaker |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180622 Effective date of abandoning: 20191108 |