CN107591278B - A kind of semiaxis buckle-type monostable operating mechanism and its actuating method - Google Patents
A kind of semiaxis buckle-type monostable operating mechanism and its actuating method Download PDFInfo
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- CN107591278B CN107591278B CN201710863026.2A CN201710863026A CN107591278B CN 107591278 B CN107591278 B CN 107591278B CN 201710863026 A CN201710863026 A CN 201710863026A CN 107591278 B CN107591278 B CN 107591278B
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- separating brake
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Abstract
The invention discloses a kind of semiaxis buckle-type monostable operating mechanism and its actuating methods, semiaxis buckle-type monostable operating mechanism includes closing keeping device (10), separating brake holding meanss (7), electromagnetic repulsion mechanism (4) and buffer unit (11), when operating mechanism closes a floodgate, switching electromagnet (21) opens buckle connecting rod (23), realizes that operating mechanism closes a floodgate using combined floodgate reset spring (27)；When operating mechanism separating brake, insulated pull rod (12) drives buckle connecting rod (23) rotation by pin, separating brake keeps semiaxis (25) to continue to move downward, after buckle connecting rod (23) passes through, separating brake keeps semiaxis (25) reverse reset, buckle connecting rod (23) is blocked, mechanism is maintained at open position.
Description
Technical field
The present invention relates to a kind of dc circuit breaker field, especially a kind of semiaxis buckle-type monostable operating mechanism and its behaviour
Dynamic method.
Background technique
It is easier to control due to direct current system its route low cost, without capacity current, without eddy-current loss, trend in recent years
The advantages that processed, DC power-supply system are concerned.Especially certain specific occasions, such as large ship power supply system, city rail
The direct current systems such as traffic power supply system have obtained significant progress.The capacity sustainable growth of simultaneous direct current system and voltage
The continuous improvement of grade, peak value of short can reach 100kA or more, at the same its short circuit current climbing also 15A/us with
On.Traditional mechanical breaker, due to the limitation for the features such as its own switch off time is long, and current limiting capacity is limited, it is difficult to adapt to
The growth requirement of the high voltage of direct current system, high current.
Along with the continuous development of power electronic technique, there is the solid-state direct-current open circuit based on gate electrode capable of switching off device
The characteristics of device, it is short to possess actuation time, and thick-less vane may be implemented applies it in certain occasion.But and tradition
Mechanical breaker compare, on-state loss is big, bearing capacity is limited and it is anti-shove, the disadvantage that overvoltage ability is weaker makes
It has biggish limitation in the application.
Operating mechanism in a kind of breaker disclosed in patent document CN201156495Y includes an electromagnetic repulsion force driving machine
Structure and a bistable state combination disk spring holding mechanism；The electromagnetic repulsion force driving mechanism includes two discharge loops, and is put described in two
What electrical circuit was separately connected is arranged in the opening coil and closing coil in upper and lower support plate, the opening coil and closing line
By bolt, there are a gaps between circle, and link into an integrated entity, and a repulsion disk are provided in the gap, on the repulsion disk
Fixation wears a repulsion bar, and the repulsion bar upper and lower end slides respectively is fed through the opening coil and closing coil, described
Repulsion bar upper end wear expose the opening coil position it is corresponding with a photoelectric sensor, be arranged a sensor barn door；It is described
Bistable state combination disk spring holding mechanism includes a retentivity bar, and the upper end is connect with repulsion bar lower end, the retentivity bar
On be fixedly installed multiple springs gear, block top in the spring and be equipped with the disc spring that at least two panels is oppositely arranged, the periphery of the disc spring
It is fixedly connected on multiple long threaded rods, is fixedly connected at the top of the long threaded rod on the lower supporting plate.The patent structure is simple,
Bistable state combination disk spring holding mechanism moving-mass and impact kinetic energy are small, and power producing characteristics design is simple, but the patent cannot achieve
Divide-shut brake, at the same short-circuit current when arriving can quick acting switching-off, and under the premise of realizing two kinds of functions, realization divide-shut brake
Service life is high, improves the service life of dc circuit breaker.
A kind of high-speed switch based on permanent magnet holding mechanism disclosed in patent document CN205723330U includes being sequentially connected
Top guide bar (1), vacuum interrupter (2), middle guide rod, insulator (3), lower guide rod (4) and keep use dynamic iron core (9), described
It is set with repulsion dish (6) on lower guide rod (4), opening coil (5) is installed above the repulsion dish (6) and is equipped with thereunder
Closing coil (7)；Upper holding static iron core, holding static iron core on this are installed above the holding dynamic iron core (9)
Centre is equipped with combined floodgate and keeps permanent magnet (11), and is equipped with lower holding static iron core below the holding dynamic iron core (9),
Separating brake is installed among the lower holding static iron core and keeps permanent magnet (14).The patent is opened based on the rapid repulsion that permanent magnetism is kept
It closes, can effectively improve switch opening velocity, but the patent cannot achieve divide-shut brake, while can when short-circuit current arrival
Quick acting switching-off, and under the premise of realizing two kinds of functions, it realizes that the divide-shut brake service life is high, improves the service life of dc circuit breaker.
In recent years, a kind of hybrid direct current interruption by realizing high speed machine switch and power electronic devices parallel connection
The advantages such as device has through-current capability strong, and breaking speed is fast, have much potentiality in the direct current field of cut-offfing.Hybrid circuit breaker requirement, machine
Tool switch can be realized contact high-speed separation, convenient for electric current to transfer branch transfer, while require mechanical switch that can obtain at this time
It obtains initial velocity big as far as possible and forms clearance for insulation as early as possible, the very high wink occurred between mechanical chopper fracture after resistance
State restores voltage.High speed operating mechanism uses bistable spring structure mostly at this stage, needs two repulsion coils, and two sets drive back
Road, mechanism and driving circuit volume are larger, at high cost, are unfavorable for breaker miniaturization, intensive.
The monostable high speed actuating that the object of the present invention is to provide a kind of structures is simple, easily operated, opening velocity is fast
The speed of cut-offfing of dc circuit breaker can be improved in mechanism, reduces driving circuit quantity, and reducing mechanism volume reduces closing speed,
Increase the high-speed mechanism service life.
Disclosed above- mentioned information are used only for enhancing the understanding to background of the present invention in the background section, it is thus possible to
Information comprising not constituting the prior art known to a person of ordinary skill in the art in home.
Summary of the invention
In view of the above problems, the purpose of the present invention is to provide a kind of semiaxis buckle-type monostable operating mechanism, Neng Gouman
The requirement of sufficient quick acting switching-off speed height and divide-shut brake service life length.
The purpose of the present invention is be achieved by the following technical programs.
One aspect of the present invention, a kind of semiaxis buckle-type monostable operating mechanism include that closing keeping device, separating brake are protected
Hold device, electromagnetic repulsion mechanism and buffer unit.
The closing keeping device includes closing a floodgate that spring, combined floodgate is kept to keep sliding block, spring support, kinematic link and transmission
Flange, precompressed combined floodgate keep spring top clamping to close a floodgate and keep sliding block, close a floodgate and sliding block is kept to hold out against the idler wheel on kinematic link, institute
It states drive flange and insulated pull rod lower end is crimped on to provide closing retention force by spring force, kinematic link one end connects driving method
Orchid, the other end connect idler wheel, and idler wheel indentation, which is closed a floodgate, keeps sliding block, close a floodgate and keep sliding block and spring support sliding contact.
The separating brake holding meanss include that separating brake keeps semiaxis, fixing element, switching electromagnet, reset spring and buckle to connect
Bar；Buckling connecting rod includes two pull rods, buckles connecting rod one end and rotating fulcrum hinge, and buckle connecting rod centre and insulated pull rod pass through
Pin is connected, and is equipped with separating brake below buckle connecting rod end and keeps semiaxis, and the separating brake being freely rotated keeps the insertion of semiaxis both ends solid
Determine in element.
The electromagnetic repulsion mechanism includes insulated pull rod, repulsion dish, opening coil and discharge loop.
The buffer unit includes buffer, combined floodgate reset spring, mechanism stop bit sleeve and resets sliding block；Buffer unit away from
It is apart 5mm from operating mechanism initial position, after being buffered beyond 5mm, drive flange can knock mechanism stop bit sleeve and stop fortune
It is dynamic, it is cased with combined floodgate reset spring on the outside of buffer, closes a floodgate and resets to implementation mechanism.
When operating mechanism closes a floodgate, electromagnet opens buckle, using combined floodgate reset spring, realizes that operating mechanism closes a floodgate.
When operating mechanism separating brake, insulated pull rod drives buckle link rotatable by pin, and it is downward that separating brake keeps semiaxis to continue
Movement, after buckle connecting rod passes through, separating brake keeps semiaxis reverse reset, blocks buckle connecting rod, operating mechanism is maintained at sub-gate position
It sets.
In the operating mechanism, operating mechanism includes support fixation kit, and the support fixation kit includes insulation
Stop sleeve, aluminium stop sleeve, bracing members sleeve, angle iron bracket, pilot sleeve, buffer fixation steel plate and repulsive force mechanism are fixed
Plate.
In the operating mechanism, the discharge loop is connected by driving capacitor, thyristor, coil with precharge
Composition, coil both ends reverse parallel connection freewheeling diode.
In the operating mechanism, the buffer includes oil bumper, damping buffer or spring buffer.
In the operating mechanism, closes a floodgate and keep closing a floodgate among sliding block insertion spring support and keeping sliding block and spring branch
Frame sliding contact closes a floodgate and keeps sliding block and bracing members sleeve there are 1mm fit clearance, and lubricating grease is added in fit clearance.
In the operating mechanism, the repulsion dish are to generate the circle or annular shape of vortex, and repulsion dish include copper
Or aluminium alloy conductive material.
In the operating mechanism, closes a floodgate and keep spring pocket on the holding sliding block that closes a floodgate, close a floodgate and keep sliding block in bullet
Move distance in spring bracket is 15mm.
In the operating mechanism, opening coil includes sandwich wound coil.
In the operating mechanism, the moved end of the insulated pull rod and vacuum bubbles is connected through a screw thread, and opening coil is logical
Bolt is crossed to be fixed on insulation board；The repulsion dish, which are connected through a screw thread, to be fixed on insulated pull rod, under opening coil
Surface keeps the gap 1mm.
According to another aspect of the present invention, a kind of to include: using the actuating method and step of the operating mechanism
The operating mechanism is connected to reclosing command, and precompressed combined floodgate keeps spring top clamping to close a floodgate and keeps sliding block, closes a floodgate and protect
It holds sliding block and holds out against idler wheel on kinematic link, the drive flange is crimped on insulated pull rod lower end by spring force to provide combined floodgate
Retentivity, kinematic link one end connect drive flange, and the other end connects idler wheel, and idler wheel indentation, which is closed a floodgate, keeps sliding block.
The operating mechanism is connected to separating brake instruction, and insulated pull rod drives buckle link rotatable by pin, and separating brake keeps half
Axis continues to move downward, and after buckle connecting rod passes through, separating brake keeps semiaxis reverse reset, blocks buckle connecting rod, and operating mechanism is protected
It holds in open position.
The operating mechanism is connected to quick acting switching-off instruction, opening coil electric discharge, and repulsion dish realize quick disjunction.
The present invention realizes that low speed closes a floodgate using spring-return power, simplifies the structure of high speed operating mechanism, increases high speed
The service life of operating mechanism, quick acting switching-off moving parts quality is small, speed is fast, and dc circuit breaker can be improved uses the longevity
Life.
The above description is only an overview of the technical scheme of the present invention, in order to make technological means of the invention clearer
Understand, reach the degree that those skilled in the art can be implemented in accordance with the contents of the specification, and in order to allow the present invention
Above and other objects, features and advantages can be more clearly understood, illustrated below with a specific embodiment of the invention
Explanation.
Detailed description of the invention
By reading the detailed description in hereafter preferred embodiment, various other advantages and benefits of the present invention
It will become apparent to those of ordinary skill in the art.Figure of description only for the purpose of illustrating preferred embodiments,
And it is not to be construed as limiting the invention.It should be evident that drawings discussed below is only some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.And throughout the drawings, identical component is presented with like reference characters.
In the accompanying drawings:
Fig. 1 is the structural schematic diagram of operating mechanism according to an embodiment of the invention；
Fig. 2 is that the closing keeping device of operating mechanism according to an embodiment of the invention uses schematic diagram；
Fig. 3 is that the separating brake holding meanss of operating mechanism according to an embodiment of the invention use schematic diagram；
Fig. 4 is that the buffer unit of operating mechanism according to an embodiment of the invention uses schematic diagram；
Fig. 5 is the structural schematic diagram of the repulsive force mechanism of operating mechanism according to an embodiment of the invention；
Fig. 6 is the step schematic diagram of the actuating method according to an embodiment of the invention using operating mechanism.
Below in conjunction with drawings and examples, the present invention will be further explained.
Specific embodiment
The specific embodiment that the present invention will be described in more detail below with reference to accompanying drawings.Although being shown in attached drawing of the invention
Specific embodiment, it being understood, however, that may be realized in various forms the present invention without that should be limited by embodiments set forth here
System.It is to be able to thoroughly understand the present invention on the contrary, providing these embodiments, and can be complete by the scope of the present invention
Be communicated to those skilled in the art.
It should be noted that having used some vocabulary in the specification and claims to censure specific components.Ability
Field technique personnel it would be appreciated that, technical staff may call the same component with different nouns.This specification and right
It is required that not in such a way that the difference of noun is as component is distinguished, but with the difference of component functionally as differentiation
Criterion."comprising" or " comprising " as mentioned throughout the specification and claims are an open language, therefore should be solved
It is interpreted into " including but not limited to ".Specification subsequent descriptions are to implement better embodiment of the invention, so the description be with
For the purpose of the rule of specification, the range that is not intended to limit the invention.Protection scope of the present invention is when the appended right of view
It is required that subject to institute's defender.
In order to facilitate understanding of embodiments of the present invention, further by taking specific embodiment as an example below in conjunction with attached drawing to be solved
Explanation is released, and each attached drawing does not constitute the restriction to the embodiment of the present invention.
In order to better understand, Fig. 1 is the structural schematic diagram of operating mechanism according to an embodiment of the invention, Yi Zhongban
Axis buckle-type monostable operating mechanism includes closing keeping device 10, separating brake holding meanss 7, electromagnetic repulsion mechanism 4 and buffering dress
Set 11.
The closing keeping device 10 includes closing a floodgate that spring 17, combined floodgate is kept to keep sliding block 3, spring support 6, kinematic link
14 and drive flange 16, precompressed combined floodgate keeps spring 17 to hold out against combined floodgate and keeps sliding block 3, closes a floodgate and sliding block 3 is kept to hold out against transmission
Idler wheel 9 on connecting rod 14, the drive flange 16 are crimped on 12 lower end of insulated pull rod to provide closing retention force, kinematic link 14
One end connects drive flange 16, and the other end connects idler wheel 9, and the indentation of idler wheel 9, which is closed a floodgate, keeps sliding block 3, closes a floodgate and keeps sliding block 3 and spring
6 sliding contact of bracket.
The separating brake holding meanss 7 include that separating brake keeps semiaxis 25, fixing element 15, switching electromagnet 21, reset spring
22 and buckle connecting rod 23；Buckling connecting rod 23 includes two pull rods, buckles 23 one end of connecting rod and rotating fulcrum hinge, buckles connecting rod 23
Centre be connected with insulated pull rod 12 by pin, buckle 23 end of connecting rod below be equipped with separating brake keep semiaxis 25, freely turn
Dynamic separating brake is kept in 25 both ends of semiaxis insertion fixing element 15.
The electromagnetic repulsion mechanism 4 includes insulated pull rod 12, repulsion dish 13, opening coil 5 and discharge loop.
The buffer unit 11 includes buffer 19, combined floodgate reset spring 27, mechanism stop bit sleeve 26 and resets sliding block；It is slow
Flushing device 11 is apart 5mm apart from operating mechanism initial position, and after being buffered beyond 5mm, drive flange 16 knocks mechanism stop bit
26 stop motion of sleeve, combined floodgate reset spring 27 is cased on the outside of buffer 19 and is closed a floodgate to implementation mechanism resets.
When operating mechanism closes a floodgate, switching electromagnet 21 opens buckle connecting rod 23, realizes actuating using combined floodgate reset spring 27
Mechanism closes a floodgate.
When operating mechanism separating brake, insulated pull rod 12 by pin drive buckle connecting rod 23 rotate, separating brake keep semiaxis 25 after
Continuous to move downward, after buckle connecting rod 23 passes through, separating brake keeps 25 reverse reset of semiaxis, blocks buckle connecting rod 23, and mechanism is kept
In open position.
Fig. 2 show the closing keeping device schematic diagram of first embodiment of the invention, when "on" position, closes a floodgate and keeps spring
17 compressions keep the certain precompression of sliding block 3 to closing a floodgate, and close a floodgate and keep sliding block 3 and spring support 6 together to 9 pressure of idler wheel, idler wheel
9 pressure is transferred on drive flange 16 by kinematic link 14, and drive flange 16 compresses insulated pull rod 12.Tune can be passed through
The stiffness factor adjustment mechanism closing retention force that lock keeps spring 17 is integrated, so that the different short-circuit tolerances of operating mechanism reply
It is required that occasion.When mechanism separating brake, since driving force is electromagnetic repulsion force, it is far longer than spring retentivity, idler wheel 9 is pushed into design
Among good groove, closes a floodgate and keep the compression downwards of spring 17 a bit.At this point, the pressure to idler wheel 9 of spring force and spring support 6
Dynamic balance, closing keeping device are no longer that insulated pull rod 12 provides closing retention force.
Fig. 3 is separating brake holding mechanism operation schematic diagram, and under normal "on" position, separating brake keeps semiaxis 25 not provide any pressure
Power.When mechanism separating brake, insulated pull rod 12 drives buckle connecting rod 23 to rotate by pin, at this time due to connecting rod fast speed, top
Opening separating brake keeps semiaxis 25 to continue to move downward, since separating brake keeps semiaxis both ends added with torsional spring, after buckle connecting rod 23 passes through,
Separating brake keeps the torsion playback rapidly of semiaxis 25.After buffering by buffer 19, mechanism kinematic member velocity is kept to zero.It is closing a floodgate
Under the action of spring, moving component is moved upwards, and since separating brake keeps semiaxis 25 to playback, buckle connecting rod 23 is locked, machine
Structure is maintained at open position, and when issuing reclosing command, electromagnet opens separating brake and keeps semiaxis 25, in the effect of switching-in spring
Under, moving component moves upwards, and eventually arrives at closing position.
As shown in figure 4, by 5mm stroke, drive flange 16 knocks buffer 19 after mechanism starts separating brake, movement
Component starts to buffer.Using 10mm stroke, drive flange 16 knocks mechanism stop bit sleeve 26, and mechanism kinematic component stops fortune
It is dynamic.In separating brake holding position, switching-in spring has certain decrement, provides certain pressure.When separating brake keep semiaxis 25 unbutton, according to
By the elastic force of switching-in spring, implementation mechanism is closed a floodgate.According to different closing speed demands, different switching-in spring stiffness system can be chosen
Number.
Fig. 5 is electromagnetic repulsion mechanism schematic diagram, and dc circuit breaker will do separating brake in the case where there is short-circuit current
Operation.When short trouble occurs for system, controller detects short circuit current signal, and generates the trigger signal of thyristor VT,
To trigger thyristor VT conducting.After thyristor vT conducting, the capacitor C of energy storage will generate one rapidly to coil discharge
Pulse current；Based on electromagnetic induction eddy current principle, repulsion dish 13 will generate huge electromagnetic repulsion force to push separating brake push rod high-speed
Movement.Separating brake push rod acts directly on moving contact, and electromagnetic repulsion force caused by repulsive force mechanism overcomes the conjunction of closing keeping device
Lock retentivity, promptly pushes moving contact open.After repulsive force mechanism completes primary high speed sub-switching operation, in the work of separating brake holding meanss
Under, mechanism is maintained at open position, waits reclosing command.
The preferred embodiment of operating mechanism according to the present invention, operating mechanism include support fixation kit, the branch
Supportting fixation kit includes insulating supporting sleeve 1, bracing members sleeve 8, angle iron bracket, pilot sleeve, fixation steel plate 20 and repulsion machine
Structure fixed plate.
The preferred embodiment of operating mechanism according to the present invention, the discharge loop is by the driving electricity with precharge
Appearance, thyristor, coil are composed in series, coil both ends reverse parallel connection freewheeling diode.
The preferred embodiment of operating mechanism according to the present invention, the buffer 19 include oil bumper, damp and delay
Rush device or spring buffer.
The preferred embodiment of operating mechanism according to the present invention closes a floodgate and sliding block 3 is kept to be embedded among spring support 6,
It closes a floodgate and keeps sliding block 3 and 6 sliding contact of spring support, close a floodgate and keep sliding block 3 and bracing members sleeve 8 there are 1mm fit clearance, match
It closes in gap and lubricating grease is added.
The preferred embodiment of operating mechanism according to the present invention, the repulsion dish 13 are the circle ring for generating vortex
Shape shape, repulsion dish 13 include copper or aluminium alloy conductive material.
The preferred embodiment of operating mechanism according to the present invention closes a floodgate and is kept for 17 sets of spring keep sliding block 3 in combined floodgate
On, closing a floodgate and keeping move distance of the sliding block 3 in spring support 6 is 15mm.
The preferred embodiment of operating mechanism according to the present invention, opening coil 5 include sandwich wound coil.
The moved end of the preferred embodiment of operating mechanism according to the present invention, the insulated pull rod 12 and vacuum bubbles 2 is logical
Threaded connection is crossed, opening coil 5 is bolted on insulation board；The repulsion dish 13, which are connected through a screw thread, to be fixed on absolutely
On edge pull rod 12, the gap 1mm is kept with 5 lower surface of opening coil.
The advantage of the invention is that realizing quick acting switching-off function when short circuit current arrives, and moving parts quality when separating brake
Small, speed is high.Electromagnet is utilized in specified divide-shut brake and holding, the divide-shut brake service life is high, reliable and stable.The present invention is real
Existing reliable and stable suction and, while it is excessively high to avoid collision speed, starts to compress through the smaller moment touch spring of iron core air gap dynamic.
At this point, air gap is smaller, electromagnetic attraction is larger, can overcome touch spring counter-force, meanwhile, touch spring 8 has biggish precommpression
It measures and coefficient of elasticity is larger, be capable of providing a good buffer function.
In the preferred embodiment of the operating mechanism, the charging and discharging circuit by with precharge driving capacitor,
Thyristor, coil are composed in series, coil both ends reverse parallel connection freewheeling diode.
In the preferred embodiment of the operating mechanism, the repulsion dish 13 are to generate the round or annular shape of vortex
Shape, repulsion dish 13 include copper or aluminium alloy conductive material.
Fig. 6 is the step schematic diagram of the actuating method according to an embodiment of the invention using operating mechanism, utilizes institute
The step of actuating method for the operating mechanism stated includes:
The operating mechanism is connected to reclosing command, and precompressed combined floodgate keeps spring 10 to hold out against combined floodgate and keeps sliding block 3, closes a floodgate
Sliding block 3 is kept to hold out against the idler wheel 9 on kinematic link 14, the drive flange 16 is crimped on 12 lower end of insulated pull rod by spring force
To provide closing retention force, 14 one end of kinematic link connects drive flange 16, and the other end connects idler wheel 9, and the indentation of idler wheel 9, which is closed a floodgate, to be protected
Hold sliding block 3.
The operating mechanism is connected to separating brake instruction, and insulated pull rod 12 drives buckle connecting rod 23 to rotate by pin, and separating brake is protected
It holds semiaxis 25 to continue to move downward, after buckle connecting rod 23 passes through, separating brake keeps 25 reverse reset of semiaxis, blocks buckle connecting rod
23, operating mechanism is maintained at open position.
The operating mechanism is connected to quick acting switching-off instruction, and opening coil 5 is discharged, and repulsion dish 13 realize quick disjunction.
Although embodiment of the present invention is described in conjunction with attached drawing above, the invention is not limited to above-mentioned
Specific embodiments and applications field, above-mentioned specific embodiment are only schematical, directiveness, rather than restricted
's.Those skilled in the art are under the enlightenment of this specification and in the range for not departing from the claims in the present invention and being protected
In the case where, a variety of forms can also be made, these belong to the column of protection of the invention.
Claims (10)
1. a kind of semiaxis buckle-type monostable operating mechanism comprising closing keeping device (10), separating brake holding meanss (7), electricity
Magnetic repulsion mechanism (4) and buffer unit (11), it is characterised in that:
The closing keeping device (10) includes closing a floodgate to keep spring (17), holding sliding block (3) of closing a floodgate, spring support (6), transmission
Connecting rod (14) and drive flange (16), precompressed combined floodgate keep spring (17) to hold out against combined floodgate and keep sliding block (3), close a floodgate and keep sliding
Block (3) holds out against the idler wheel (9) on kinematic link (14), and the drive flange (16) is crimped on insulated pull rod (12) lower end to provide
Closing retention force, kinematic link (14) one end connect drive flange (16), and the other end connects idler wheel (9), and idler wheel (9) indentation is closed a floodgate
It keeps sliding block (3), closes a floodgate and keep sliding block (3) and spring support (6) sliding contact；
The separating brake holding meanss (7) include that separating brake keeps semiaxis (25), fixing element (15), switching electromagnet (21), resets
Spring (22) and buckle connecting rod (23)；Buckling connecting rod (23) includes two pull rods, buckles connecting rod (23) one end and rotating fulcrum hinge
The centre of chain, buckle connecting rod (23) is connected with insulated pull rod (12) by pin, is equipped with and is divided below buckle connecting rod (23) end
Lock keeps semiaxis (25), and the separating brake being freely rotated is kept in semiaxis (25) both ends insertion fixing element (15)；
The electromagnetic repulsion mechanism (4) includes insulated pull rod (12), repulsion dish (13), opening coil (5) and discharge loop；
The buffer unit (11) includes buffer (19), combined floodgate reset spring (27), mechanism stop bit sleeve (26) and resets cunning
Block；Buffer unit (11) is apart 5mm apart from operating mechanism initial position, and after being buffered beyond 5mm, drive flange (16) is knocked
Mechanism stop bit sleeve (26) stop motion, buffer (19) outside are cased with combined floodgate reset spring (27) and close a floodgate again to implementation mechanism
Position；
When operating mechanism closes a floodgate, switching electromagnet (21) opens buckle connecting rod (23), is realized and is grasped using combined floodgate reset spring (27)
Motivation structure closes a floodgate；
When operating mechanism separating brake, insulated pull rod (12) drives buckle connecting rod (23) to rotate by pin, and separating brake keeps semiaxis (25)
Continue to move downward, after buckle connecting rod (23) passes through, separating brake keeps semiaxis (25) reverse reset, buckle connecting rod (23) is blocked,
Operating mechanism is maintained at open position.
2. operating mechanism according to claim 1, which is characterized in that operating mechanism includes support fixation kit, the branch
Support fixation kit include insulating supporting sleeve (1), bracing members sleeve (8), angle iron bracket, pilot sleeve, fixation steel plate (20) and
Repulsive force mechanism fixed plate.
3. operating mechanism according to claim 1, it is characterised in that: the discharge loop is by the driving electricity with precharge
Appearance, thyristor, coil are composed in series, coil both ends reverse parallel connection freewheeling diode.
4. operating mechanism according to claim 1, it is characterised in that: the buffer (19) includes oil bumper or spring
Buffer.
5. operating mechanism according to claim 1, it is characterised in that: close a floodgate keep sliding block (3) insertion spring support (6) it
In, it closes a floodgate and keeps sliding block (3) and spring support (6) sliding contact, combined floodgate keeps sliding block (3) and bracing members sleeve (8), and there are 1mm
Lubricating grease is added in fit clearance in fit clearance.
6. operating mechanism according to claim 1, it is characterised in that: the repulsion dish (13) be generate vortex circle or
Annular shape, repulsion dish (13) include copper or aluminium alloy conductive material.
7. operating mechanism according to claim 1, it is characterised in that: close a floodgate and spring (17) is kept to cover in the holding sliding block that closes a floodgate
(3) on, closing a floodgate and keeping the move distance of sliding block (3) in spring support (6) is 15mm.
8. operating mechanism according to claim 1, it is characterised in that: opening coil (5) includes sandwich wound coil.
9. operating mechanism according to claim 1, it is characterised in that: the insulated pull rod (12) and vacuum bubbles (2) it is dynamic
End is connected through a screw thread, and opening coil (5) is bolted on insulation board；The repulsion dish (13) are connected through a screw thread
It is fixed on insulated pull rod (12), keeps the gap 1mm with opening coil (5) lower surface.
10. a kind of actuating method using the operating mechanism of any of claims 1-9, step include:
The operating mechanism is connected to reclosing command, and precompressed combined floodgate keeps spring (17) to hold out against combined floodgate and keeps sliding block (3), closes a floodgate
Sliding block (3) are kept to hold out against the idler wheel (9) on kinematic link (14), the drive flange (16) is crimped on insulation by spring force and draws
Bar (12) lower end is to provide closing retention force, and kinematic link (14) one end connects drive flange (16), and the other end connects idler wheel
(9), idler wheel (9) indentation, which is closed a floodgate, keeps sliding block (3)；
The operating mechanism is connected to separating brake instruction, and insulated pull rod (12) drives buckle connecting rod (23) to rotate by pin, and separating brake is protected
It holds semiaxis (25) to continue to move downward, after buckle connecting rod (23) passes through, separating brake keeps semiaxis (25) reverse reset, blocks buckle
Connecting rod (23), operating mechanism is maintained at open position；
The operating mechanism is connected to quick acting switching-off instruction, opening coil (5) electric discharge, and repulsion dish (13) realize quick disjunction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710863026.2A CN107591278B (en) | 2017-09-21 | 2017-09-21 | A kind of semiaxis buckle-type monostable operating mechanism and its actuating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710863026.2A CN107591278B (en) | 2017-09-21 | 2017-09-21 | A kind of semiaxis buckle-type monostable operating mechanism and its actuating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107591278A CN107591278A (en) | 2018-01-16 |
| CN107591278B true CN107591278B (en) | 2019-05-24 |
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