CN108447647A - A kind of four magnetic pole bidirectional electromagnet of wet type based on electrical excitation - Google Patents
A kind of four magnetic pole bidirectional electromagnet of wet type based on electrical excitation Download PDFInfo
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- CN108447647A CN108447647A CN201810339495.9A CN201810339495A CN108447647A CN 108447647 A CN108447647 A CN 108447647A CN 201810339495 A CN201810339495 A CN 201810339495A CN 108447647 A CN108447647 A CN 108447647A
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- pedestal
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- conducting magnetic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/14—Pivoting armatures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/081—Magnetic constructions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/126—Supporting or mounting
Abstract
A kind of four magnetic pole bidirectional electromagnet of wet type based on electrical excitation, including pedestal, shell, pedestal and shell enclose inner cavity, and armature shaft is connected between armature and latch segment with armature locking nut across the center of pedestal, the centre bore of the centre bore of armature, latch segment；Armature is in a manner of relative rotation and axial movement with armature axis connection, can be equipped with resetting spring between armature and pedestal；Bobbin and control coil are respectively arranged on four conducting magnetic columns, inner cavity is divided into the seal chamber comprising yoke and the low pressure oil pocket comprising armature by seal cover board；When electric current is zero in control coil, under action of reset spring, armature is in initial position, i.e. the first positioning surface of the maximum functional gap position of armature pedestal at this time is contacted with armature；When being passed through electric current in control coil, armature is in operating position, i.e., armature is driven by electromagnetic force overcomes the resistance exercise of resetting spring to minimum working gas gap position, and the second positioning surface of pedestal is contacted with armature at this time.
Description
Technical field
The invention belongs to the electromechanical converters of 2D digital switch valves in Fluid-transmission and control field, more particularly to
A kind of four magnetic pole bidirectional electromagnets based on electrical excitation.
Background technology
Electro-hydraulic servo, ratio and reversal valve etc. are used as core control element, are played to the performance of entire electrohydraulic control system
Conclusive influence is always the research hotspot of Fluid-transmission and control field.Due to electromechanical converter thrust output by
To magnetically saturated limitation, so-called direct-acting valve can only be applied under low-pressure low flow.In order to work under high-pressure high-flow occasion,
People are designed into the two-stage of pilot-operated type and multistage valve arrangement.Among all kinds of pilot control valves, it is based on guiding valve double freedom
The 2D valves of design realize the function of pilot stage and power stage using two degree of freedom of radial rotary and axial movement of valve core of the spool valve,
And the succinct of direct-acting valve is physically still kept, have the characteristics that lightweight high energy, simple in structure, frequency response is high and oil rub resistance,
And the complete serieses fluid control elements such as 2D electrohydraulic servo valves, 2D electro-hydraulic proportional valves and 2D electro-hydraulic reversing valves are may be constructed, in recent years
It has obtained answering extensively in the fields such as aerospace, military issue weapons, ship, large-scale power station, steel, Material Testing Machine and shake table
With.The especially high Core Superiority of its power-weight ratio, and by the special welcome of the Subscriber Units such as military project and aerospace.
Electromechanical conversion element is as the core element converted between mechanical energy and electromagnetic energy, and performance quality is for valve
Static and dynamic performance have a significant impact.Traditional electromagnetic type electromechanical converter mainly has two kinds of moving-coil type and moving-iron type.Moving-coil
The linearity of formula force motor is good, magnetic hysteresis influences that small, impulse stroke is long, but its power-weight ratio is small, and when energization often exists serious
Heating problem.The rotor assembly inertia such as moving-iron type such as Nozzle flapper valve and jet pipe torque-motor is small, and dynamic response is high, but
Be it is influenced by air gap variation and material hysteresis, output characteristics it is non-linear more serious, stroke is smaller, it is operated in milliampere in addition
Under grade electric current, output torque very little.Another common moving-iron type electromechanical converter is proportion electro-magnet, impulse stroke
Long, thrust is larger, is easy to make wet structures, the disadvantage is that armature component inertia is larger, dynamic response is low, and easy when straight drive spool
By friction effects.In addition, with the decline of high energy product permanent-magnet material production and processing cost, in electromechanical converter
It is middle to use rare earth permanent-magnetic material as polarizing magnetic field source to reduce power consumption and reduce coil heat dissipation, at least for civil field,
Have become a kind of more universal design method.
In order to ensure that the electric property of electromechanical converter does not change, operation that can be reliably and with long-term, depending on use occasion
For certain requirement is had to the Magnetic stability of permanent magnet.Usually with the magnetic property of permanent-magnet material with environment, temperature and
The change rate of time indicates its stability, includes mainly thermal stability, magnetic stability, chemical stability and time stability
Deng wherein thermal stability is a most key index, is usually indicated (with the raising of temperature, permanent magnetism with Curie temperature
Body magnetic property gradually declines, and when rising to a certain temperature, the intensity of magnetization disappears, which is known as Curie's temperature of the permanent-magnet material
Degree).For the rare earth permanent-magnetic material having a large capacity and a wide range in the industry at this stage, the Curie temperature of Nd-Fe-B permanent magnet material is relatively low
(about 150 DEG C), it is improper to be used under high temperature applicationss；Although and rare earth cobalt permanent magnets Curie temperature is higher that (about 710 arrive
880 DEG C), but since cobalt is strategic data, price costly, greatly improves the manufacturing cost of electromechanical converter.Cause
This, for considering, the electromechanical converter using permanent magnet as excitation mechanism is influenced due to being demagnetized by high temperature, no
It is suitble to the temperature changes range such as military project and aerospace is larger, higher to reliability requirement crucial occasion uses.
In addition, whether electromechanical converter allows to be immersed in fluid and is divided into two class of dry type and wet type according to armature,
Wet type electromechanical converter is able to cancel the dynamic sealing on the intrinsic valve rod of dry construction due to its high pressure resistant design, improves
The functional reliability of valve；Armature can be immersed in fluid when working, and fluid can recycle the partial heat for taking away yoke and armature,
Play the role of improving heat dissipation；But also noise is small when Vavle switching, stable working was extended using the longevity for the damping effect of fluid
Life.Therefore, the high-performance electromechanical converter for having wet type high-voltage resistance capability is always research emphasis and developing direction.
Invention content
It is uncomfortable to solve to be influenced due to being demagnetized by high temperature as the electromechanical converter of excitation mechanism using permanent magnet
It closes and goes the temperature changes range such as military project and aerospace is larger, higher to reliability requirement crucial occasion uses
Electricity, the present invention provides a kind of four magnetic pole bidirectional electromagnet of wet type based on electrical excitation are suitable as the electricity of 2D electro hydraulic on-off valves
Mechanical transducer.
The technical solution adopted by the present invention to solve the technical problems is：
In four magnetic column type electromagnet of wet type based on electric excitation, including pedestal 2, shell 13, pedestal 2 and shell 13 enclose
Chamber, it is characterised in that：Armature shaft 1 pass through the center of pedestal 2, the centre bore of armature 5, latch segment 17 centre bore, armature 5 with lock
It is connected with armature locking nut 6 between tight block 17；Armature 5 can be connect with armature shaft 1 in a manner of relative rotation and axial movement,
Resetting spring 18 is housed between armature 5 and pedestal 2；
Bobbin 10 and control coil 15 are respectively arranged on four conducting magnetic columns 8, one end of conducting magnetic column 8 is threadingly fixed
On pedestal 2, opposite conducting magnetic column 8 forms one group two-by-two in four conducting magnetic columns 8, wherein the other end of first group of conducting magnetic column 8 is solid
It is scheduled on magnetizer 14, the other end of another group of conducting magnetic column 8 is fixed on lower magnetizer 11；Four conducting magnetic columns 8 both pass through close
Plate 9 is covered, has sealing device between seal cover board 9 and shell 13 and between seal cover board 9 and four conducting magnetic columns 8, is sealed
Inner cavity is divided into comprising upper magnetizer 14, the seal chamber of lower magnetizer 11 and comprising the low pressure oil pocket of armature 5 by cover board 9；
There is the first cambered surface 51 and the second magnetic conduction that the first magnetic air gap is cooperatively formed with the first conducting magnetic column 81 on armature 5
Column 82 cooperatively forms the second cambered surface 52 of the second magnetic air gap, cooperatively forms the third of third magnetic air gap with third conducting magnetic column 83
Cambered surface 53, the 4th cambered surface 54 that the 4th magnetic air gap is cooperatively formed with the 4th conducting magnetic column 84；When electric current is zero in control coil 15
When, under action of reset spring, armature 5 is in initial position, i.e., the maximum functional gap position of armature 5 at this time pedestal 2
One positioning surface 21 is contacted with armature 5；When being passed through electric current in control coil 15, armature 5 is in operating position, i.e., armature 5 is by electricity
The driving of magnetic force overcomes the resistance exercise of resetting spring 18 to minimum working gas gap position, at this time the second positioning surface of pedestal 2 with
Armature 5 contacts；
Two sizes of generation are identical after two groups of control coils 15 of every group of conducting magnetic column 8 are powered, the opposite axial magnetic field in direction,
The upper end in two magnetic fields is in series conducting top upper magnetizer or lower magnetizer made of soft magnetic materials, and lower end passes through same
It is in series conducting for armature made of soft magnetic materials 5, forms the magnetic circuit of a closure,
For the tool of armature 5 there are six rotor, four conducting magnetic columns 8 pass through the gap between rotor respectively, wherein four rotations
The wing is respectively equipped with the first cambered surface 51, the second cambered surface 52, third cambered surface 53, the 4th cambered surface 54, is filled between another two rotor and pedestal 2
There is resetting spring 18.
Four magnetic pole bidirectional electromagnet of wet type proposed by the present invention is mainly by control coil, conducting magnetic column, armature, yoke, reset
The parts such as spring, pedestal, shell form.Its structural principle is as shown in Figure 1：When being passed through electric current in two control coils, control
Conducting magnetic column in coil and coil just will produce stable magnetic field, and magnetic field is formed by yoke and armature caused by two magnetic poles
One concatenated closed magnetic circuit, the working gas gap of the magnetic line of force of closure across conducting magnetic column and armature, to drive armature to revolve
Turn, until being contacted with conducting magnetic column.When it is zero to be passed through electric current, the conducting magnetic column made of soft magnetic materials can rapid demagnetization, rank
Iron returns to original position under the action of resetting spring.By being separately energized to two groups of different magnetic pole coils and armature can be made by zero-bit
It is rotated to side clockwise or both direction counterclockwise, to achieve the effect that the spool Double-directional rotary control of 2D electro hydraulic on-off valves.
The control coil, which is directly wound on conducting magnetic column, forms magnetic pole, and the top of each two magnetic pole is mounted on yoke side by side
It is fixed on iron and with nut, shares two groups of magnetic poles；Electromagnet at work, two magnetic poles installed side by side on same magnetic inductive block
Control coil in the size of current led to it is equal, direction is on the contrary, magnetic direction caused by magnetic pole will mutually shape instead in this way
At series connection, the upper end of one of magnetic pole is the poles N, and lower end is the poles S；The upper end of another magnetic pole be the poles S, lower end be the poles N, two
Magnetic field caused by magnetic pole passes through yoke mutual conduction.Wherein yoke is a rectangle magnetic conductive metal in homogeneous thickness, and upper
There are two symmetrical step shrinkage pools for face processing, are in close contact by the top with magnetic pole magnetic field is connected, by two magnetic poles
Generated magnetic field is together in series to form the field circuit of a closure.
The magnetic circuit of the upper end and yoke one conducting of formation of two magnetic poles, and then pass through armature and working gas gap structure in lower end
At a closed circuit.Wherein armature is cross-shaped configuration, is connected with armature shaft by intermediate bellmouth, can be the bottom of relative to
Seat rotates in small angle range.When original state, armature is located at initial position, is kept under the action of resetting spring on both sides
Equilibrium state can be there are certain working gas gap between two arc-shaped curved surfaces of cross armature and the outer surface of conducting magnetic column
It is rotated clockwise or counterclockwise under the action of magnetic field force.After the one of which control coil to two groups of magnetic poles is powered, two
Magnetic field mutual conduction caused by coil, and the working gas gap across armature and conducting magnetic column forms the magnetic circuit of a closure,
Armature rotates under the action of a magnetic force, until being in contact with the outer surface of two conducting magnetic columns.
Beneficial effects of the present invention are mainly manifested in：
1. electromagnet proposed by the invention uses the mode of electrical excitation, the production using permanent magnet excitation is effectively prevented
The integrity problem that product are caused by high temperature demagnetization phenomenon, is suitble to the important events such as military project and aerospace to use.
2. electromagnet proposed by the invention has wet type high-voltage resistance capability：Its use O-ring seals to rotor vessel into
Row sealing becomes the high voltage bearing electromechanical converter of wet type so that fluid can enter rotor chamber.It is this to use O
The high pressure resistant design method of wet type of type sealing ring is not necessarily to welding sequence for the welded seal of conventional proportional electromagnet,
Reduce cost.
3. electromagnet proposed by the invention has simple in structure, number of components compared to other kinds of electromechanical transducer
Less advantage is measured, two magnetic poles of core are versatile and easy to process so that the processing cost of entire electromagnet is opposite
It is relatively low.
Description of the drawings
Fig. 1 show the structural schematic diagram of four magnetic pole bidirectional electromagnet of wet type；
Fig. 2 show the Primary magnetic circuit element installation diagram of four magnetic pole bidirectional electromagnet of wet type；
Fig. 3 show the cross-sectional view of the structure of four magnetic pole bidirectional electromagnet of wet type；
Fig. 4 show the structural schematic diagram of the upper magnetizer 14 of four magnetic pole bidirectional electromagnet of wet type；
Fig. 5 show the structural schematic diagram of the lower magnetizer 11 of four magnetic pole bidirectional electromagnet of wet type；
Fig. 6 is the structural schematic diagram of the conducting magnetic column 8 of four magnetic pole bidirectional electromagnet of wet type；
Fig. 7 is the structural schematic diagram of the bobbin 10 of four magnetic pole bidirectional electromagnet of wet type；
Fig. 8 is the structural schematic diagram of the seal cover board 9 of four magnetic pole bidirectional electromagnet of wet type；
Fig. 9 is the structural schematic diagram of the armature 5 of four magnetic pole bidirectional electromagnet of wet type；
Figure 10 is the structural schematic diagram of the armature latch segment 17 of four magnetic pole bidirectional electromagnet of wet type；
Figure 11 is the structural schematic diagram of the pedestal 2 of four magnetic pole bidirectional electromagnet of wet type；
Figure 12 is the structural schematic diagram of the shell 13 of four magnetic pole bidirectional electromagnet of wet type；
Figure 13 is the armature operating position sectional view of four magnetic pole bidirectional electromagnet of wet type.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
In four magnetic column type electromagnet of wet type based on electric excitation, including pedestal 2, shell 13, pedestal 2 and shell 13 enclose
Chamber, it is characterised in that：Armature shaft 1 pass through the center of pedestal 2, the centre bore of armature 5, latch segment 17 centre bore, armature 5 with lock
It is connected with armature locking nut 6 between tight block 17；Armature 5 can be connect with armature shaft 1 in a manner of relative rotation and axial movement,
Resetting spring 18 is housed between armature 5 and pedestal 2；
Bobbin 10 and control coil 15 are respectively arranged on four conducting magnetic columns 8, one end of conducting magnetic column 8 is threadingly fixed
On pedestal 2, opposite conducting magnetic column 8 forms one group two-by-two in four conducting magnetic columns 8, wherein the other end of first group of conducting magnetic column 8 is solid
It is scheduled on magnetizer 14, the other end of another group of conducting magnetic column 8 is fixed on lower magnetizer 11；Four conducting magnetic columns 8 both pass through close
Plate 9 is covered, has sealing device between seal cover board 9 and shell 13 and between seal cover board 9 and four conducting magnetic columns 8, is sealed
Inner cavity is divided into comprising upper magnetizer 14, the seal chamber of lower magnetizer 11 and comprising the low pressure oil pocket of armature 5 by cover board 9；
There is the first cambered surface 51 and the second magnetic conduction that the first magnetic air gap is cooperatively formed with the first conducting magnetic column 81 on armature 5
Column 82 cooperatively forms the second cambered surface 52 of the second magnetic air gap, cooperatively forms the third of third magnetic air gap with third conducting magnetic column 83
Cambered surface 53, the 4th cambered surface 54 that the 4th magnetic air gap is cooperatively formed with the 4th conducting magnetic column 84；When electric current is zero in control coil 15
When, under action of reset spring, armature 5 is in initial position, i.e., the maximum functional gap position of armature 5 at this time pedestal 2
One positioning surface 21 is contacted with armature 5；When being passed through electric current in control coil 15, armature 5 is in operating position, i.e., armature 5 is by electricity
The driving of magnetic force overcomes the resistance exercise of resetting spring 18 to minimum working gas gap position, at this time the second positioning surface of pedestal 2 with
Armature 5 contacts；
Two sizes of generation are identical after two groups of control coils 15 of every group of conducting magnetic column 8 are powered, the opposite axial magnetic field in direction,
The upper end in two magnetic fields is in series conducting top upper magnetizer or lower magnetizer made of soft magnetic materials, and lower end passes through same
It is in series conducting for armature made of soft magnetic materials 5, forms the magnetic circuit of a closure,
For the tool of armature 5 there are six rotor, four conducting magnetic columns 8 pass through the gap between rotor respectively, wherein four rotations
The wing is respectively equipped with the first cambered surface 51, the second cambered surface 52, third cambered surface 53, the 4th cambered surface 54, is filled between another two rotor and pedestal 2
There is resetting spring 18.
The structure principle chart of the present invention is as shown in Figure 1, by 3, two armature shaft 1, pedestal 2, chassis outer side O-ring seal bullets
Spring fixing screws 4,5, two, the armature magnetic pole O-ring seal of spool lock-screw 6, four, 7, four conducting magnetic columns 8, seal cover board 9,
Four bobbins 10,11, four fixing nuts 12 of lower magnetizer, shell 13,14, four groups of control coils 15 of upper magnetizer, sealing
The compositions such as 17, two O-ring seal 16, spool latch segment resetting springs 18 on the outside of cover board.
Wherein, four bobbins 10 and four groups of control coils 15 are separately installed on four conducting magnetic columns 8, lower end is respectively with spiral shell
The mode of line is mounted on pedestal 2, and upper end is connected by upper magnetizer 14 and lower magnetizer 11 and passes through four spiral shells two-by-two respectively
Mother 12 fixes.There are one seal cover boards 9 for the intermediate installation of four conducting magnetic columns 8, and mounting hole between the two is built-in, and there are four O-shaped close
The O-ring seal 16 of 9 outer ring of seal 7 and seal cover board is combined for obstructing fluid so that entirely electromechanical transducer is interior
Chamber is separated into two parts of dry and wet.Wherein the top of bore seal cover board is seal chamber, and lower part is then low to be designed using wet type
Pumping cavity contains the parts such as armature shaft 1, latch segment 17, armature 5 and spring return mechanism.Armature shaft 1 then passes through on pedestal
Mounting hole is simultaneously in contact by the circular conical surface on axis with the bellmouth of latch segment 17, both under the action of two lock-screw 6
It is mutually fixed.It can be rotated and move axially between four conducting magnetic columns 8 with 1 fixed armature 5 of armature shaft；Armature 5 and pedestal 2 it
Between dress there are two resetting spring 18, when electric current is zero in four groups of control coils 15, armature 5 interacts in two resetting springs
Under, it is in initial position, i.e. the maximum functional gap position of armature.It is kept centainly between armature 5 and four conducting magnetic columns 8 at this time
Distance；It is passed through certain electric current in the two groups of control coils placed as diagonal line, two sizes will be generated in conducting magnetic column 8
The opposite series field of the same direction, to attract the rotation of armature 5 to be in operating position；I.e. armature is overcome by the driving of electromagnetic force
Resetting spring resistance exercise can be with two conducting magnetic columns 8 for generating magnetic field to minimum working gas gap position, the at this time curved surface of armature 5
Surface is in contact, and operating position sectional view is as shown in figure 13.
The Primary magnetic circuit element installation diagram of four magnetic pole bidirectional electromagnet of wet type is as shown in Fig. 2, by four groups of control coils 15, four
A conducting magnetic column 8, armature 5, upper magnetizer 14, lower magnetizer 11 are constituted.Armature 5 can be according to the difference of loading current mode along up time
Needle counterclockwise rotates.At work, after giving the energization of coil 15 on two groups of conducting magnetic columns 8 of the connection of magnetizer 14,
It can generate that two sizes are identical, and the opposite axial magnetic field in direction, the upper end in two magnetic fields is by top by soft on two conducting magnetic columns 8
Upper magnetizer 14 made of magnetic material is in series conducting, and lower end is in series conducting being similarly armature 5 made of soft magnetic materials,
The magnetic circuit of a closure is formed, the magnetic line of force passes through the upper magnetizer 14 of upper end and the armature of lower end respectively caused by two groups of coils
5 are in series, and are at maximum functional gap position when two cambered surfaces of armature 5 are far from two conducting magnetic columns 8, at this time control line
A constant current is passed through in circle, the magnetic line of force can pass through working gas gap and by armature 5, and armature 5 can be under the action of electromagnetic force at this time
It is rotated in a clockwise direction, two cambered surface can be in contact with two conducting magnetic columns 8 respectively reaches minimum working gas gap position；When
When the electric current of load is zero, armature 5 can rapidly return back to initial position under the action of two resetting spring 18.Similarly, when giving
After the coil 15 on two groups of conducting magnetic columns 8 that lower magnetizer 11 couples is powered, the series field formed on two conducting magnetic columns 8 can be inhaled
Draw armature to be rotated in the counterclockwise direction so that the cylindrical surface phase for two conducting magnetic columns 8 that the curved surface of armature couples with lower magnetizer 11
Contact, reaches minimum working gas gap position.
Electromagnet proposed by the invention has wet type high-voltage resistance capability：It uses O-ring seals to carry out rotor vessel
Sealing becomes the high voltage bearing electromechanical converter of wet type so that fluid can enter rotor chamber.This use is O-shaped
The high pressure resistant design method of wet type of sealing ring is not necessarily to welding sequence, also drops for the welded seal of conventional proportional electromagnet
Low cost.Fig. 3 show its cross-sectional view of the structure：Seal cover board 9 is by the sealing ring 16 of outer ring and between four conducting magnetic columns 8
Sealing ring 7 by the space inside shell 13 be divided into up and down two parts；Wherein the top half of seal cover board 9 is seal chamber,
Four sets of coils 15 and upper magnetizer 14, lower magnetizer 11 are all in the intracavitary.And the lower half portion of seal cover board 9 is low pressure oil pocket,
It allows the part to enter low pressure fluid, to be able to cancel the dynamic sealing on the intrinsic valve rod of dry construction, improves valve
Functional reliability, but also noise is small when commutation Vavle switching, stable working extends service life for the damping effect of fluid.
It is respectively upper magnetizer 14, lower magnetizer shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11 and Figure 12
11, the structural schematic diagram of conducting magnetic column 8, bobbin 10, seal cover board 9, armature 5, armature latch segment 17, pedestal 2, shell 13.Its
The groove of mounting O-shaped sealing ring is had in the outer ring of middle seal cover board 9 and four conducting magnetic column mounting holes.It is provided on armature 5
Two shrinkage pools are mainly used to limit the position of resetting spring, and one end of spring is mounted in the shrinkage pool of armature, and the other end is mounted on
On pedestal, and the pre compressed magnitude of two resetting springs is adjusted by two positioning screws on pedestal respectively.
The structure of pedestal 2 is as shown in figure 11, above there are four the mounting hole of conducting magnetic column, the mounting hole of armature shaft, two limits
Position spring and positioning screw mounting hole, pedestal lower end circular outside there are one O-ring seal mounting groove, play and
The effect sealed between shell.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention is also and in art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (2)
1. a kind of four magnetic pole bidirectional electromagnet of wet type based on electrical excitation, including pedestal (2), shell (13), pedestal (2) and shell
(13) inner cavity is enclosed, it is characterised in that：Armature shaft (1) is across the center of pedestal (2), centre bore, the latch segment of armature (5)
(17) centre bore is connect between armature (5) and latch segment (17) with armature locking nut (6)；Armature (5) is with can relative rotation
It is connect with armature shaft (1) with the mode of axial movement, resetting spring (18) is housed between armature (5) and pedestal (2)；
Bobbin (10) and control coil (15) are respectively arranged on four conducting magnetic columns (8), one end of conducting magnetic column (8) is threadingly
It is fixed on pedestal (2), opposite conducting magnetic column (8) forms one group two-by-two in four conducting magnetic columns (8), wherein first group of conducting magnetic column
(8) the other end is fixed on magnetizer (14), and the other end of another group of conducting magnetic column (8) is fixed on lower magnetizer (11)；
Four conducting magnetic columns (8) both pass through seal cover board (9), between seal cover board (9) and shell (13) and seal cover board (9) with four
There are sealing device, seal cover board (9) that inner cavity is divided into comprising upper magnetizer (14), lower magnetizer between conducting magnetic column (8)
(11) seal chamber and the low pressure oil pocket for including armature (5)；
Have on armature (5) and cooperatively forms the first cambered surface (51) of the first magnetic air gap with the first conducting magnetic column (81), led with second
Magnetic pole (82) cooperatively forms the second cambered surface (52) of the second magnetic air gap, cooperatively forms third magnetic circuit gas with third conducting magnetic column (83)
The third cambered surface (53) of gap, the 4th cambered surface (54) that the 4th magnetic air gap is cooperatively formed with the 4th conducting magnetic column (84)；Work as control line
When electric current is zero in circle (15), under action of reset spring, armature (5) is in initial position, i.e. the maximum functional gas of armature (5)
The first positioning surface (21) of gap position pedestal (2) at this time is contacted with armature (5)；When being passed through electric current in control coil (15), rank
Iron (5) is in operating position, i.e. armature (5) is overcome the resistance exercise of resetting spring (18) to work to minimum by the driving of electromagnetic force
Gap position, at this time the second positioning surface of pedestal (2) contacted with armature (5)；
Two sizes of generation are identical after two groups of control coils (15) of every group of conducting magnetic column (8) are powered, the opposite axial magnetic field in direction,
The upper end in two magnetic fields is in series conducting top upper magnetizer or lower magnetizer made of soft magnetic materials, and lower end passes through same
It is in series conducting for armature made of soft magnetic materials (5), forms the magnetic circuit of a closure.
2. a kind of four magnetic pole bidirectional electromagnet of wet type based on electrical excitation as described in claim (1), it is characterised in that：It is described
Armature (5) tool there are six rotor, four conducting magnetic columns (8) pass through the gap between rotor respectively, wherein four rotors are set respectively
There are the first cambered surface (51), the second cambered surface (52), third cambered surface (53), the 4th cambered surface (54), between another two rotor and pedestal (2)
Equipped with resetting spring (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810339495.9A CN108447647B (en) | 2018-04-16 | 2018-04-16 | Wet-type four-magnet column type electromagnet based on electric excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810339495.9A CN108447647B (en) | 2018-04-16 | 2018-04-16 | Wet-type four-magnet column type electromagnet based on electric excitation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108447647A true CN108447647A (en) | 2018-08-24 |
| CN108447647B CN108447647B (en) | 2023-07-11 |
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| CN201810339495.9A Active CN108447647B (en) | 2018-04-16 | 2018-04-16 | Wet-type four-magnet column type electromagnet based on electric excitation |
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