CN105375660B - A kind of high pressure resistant rotary magnet of double symmetrical wet types of Alnico magnetic circuit - Google Patents
A kind of high pressure resistant rotary magnet of double symmetrical wet types of Alnico magnetic circuit Download PDFInfo
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- CN105375660B CN105375660B CN201510784447.7A CN201510784447A CN105375660B CN 105375660 B CN105375660 B CN 105375660B CN 201510784447 A CN201510784447 A CN 201510784447A CN 105375660 B CN105375660 B CN 105375660B
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Abstract
The invention discloses a kind of high pressure resistant rotary magnet of double symmetrical wet types of Alnico magnetic circuit, including preceding section lid and rear end cap, rotor part is installed in described preceding section lid and rear end cap, stator component is separately installed with the preceding section lid and rear end cap of described rotor part both sides；The rotor part includes the armature spindle being arranged on by clutch shaft bearing and second bearing on drive end bearing bracket and rear end cap, interference can be connected with rotor on center axis thereof, described armature spindle；Described stator component includes the first permanent magnet, the second permanent magnet, the first yoke, the second yoke, the 3rd yoke, the 4th yoke, coil and the coil retainer installed in rotor both sides.The present embodiment passes through improved double Alnico electromagnetic designs so that the high pressure resistant rotary magnet of the symmetrical wet type of magnetic circuit can also be produced by way of machining, its is simple in construction, processing facility；And employ simple and reliable high pressure resistant structure so that electromagnet possesses the ability to be worked under wet type state.
Description
Technical field
The invention belongs to the electromechanical energy conversion device in Fluid-transmission and control field, more particularly to a kind of double magnetic
The high pressure resistant rotary magnet of the symmetrical wet type of steel formula magnetic circuit.
Background technology
In recent years, using the 2D digital servo valves that servo screw mechanism principle works because it has simple in construction, response speed
The advantages that degree is fast, and precision is high, and contamination resistance is strong, and in metallic material testing machine, earthquake simulation bumper and corresponding airline
Space industry etc. is widely applied.Conventional 2D digital servo valves are generally the rotation of composite excitation with electromechanical converter
Turn electromagnet, its structure can be divided into two kinds of axial phase and radial direction split-phase according to the difference of electromagnet stator split-phase mode, preceding
Person has following advantage compared with the latter：Firstth, using axial phase, controling winding can use loop coil, and coiling is with
Wiring technology is simple, and coil coat of paint is not easy injury, and the electrical reliability of electromagnet is better than radial direction phase separation structure；Secondth, axial phase
Electromagnet rotor cavity volume can be sealed using O-ring seals so that fluid enters working rotor chamber, make
It turns into the electromechanical converter of " wet type ", and it is directly connected with 2D digital valves, so-called direct-acting valve is may make up, is advantageous to
Structure design and cancellation dynamic sealing；3rd, for radial direction phase separation structure due to wanting slot milling coiling, its stator space can not be complete
Portion is used for tooth punching.And in the whole stator circumference of axial phase structure can whole tooth punchings, improve the utilization power of the useful space, from
And improve the output torque of electromagnet.
The basic functional principle of axial phase formula electromagnet is all that stator is divided into single-phase or two-phase to be placed in permanent magnet
Unilateral or both sides, stator form some sections of annular working gas gaps with rotor successively, and permanent magnet produces pole under working gas gap
Magnetizing field, magnet exciting coil produced in its affiliated stator phase control magnetic field, exciting current direction change and cause control magnetic field pair
Make differential superposition to produce electromagnetic torque in permanent magnet pole magnetizing field.If it is assumed that stator-rotor iron core magnetic resistance is zero, then permanent magnet exists
Caused polarizing magnetic field intensity is identical under working gas gap, and now magnetic circuit is symmetrical, i.e., electromagnet obtains under different directions exciting current
The torque angle displacement characteristic amplitude obtained is equal, and torque angle displacement characteristic is symmetrical；But actual conditions are stator-rotor iron cores all has certain magnetic
Resistance, theoretical according to magnetic circuit, the polarizing magnetic field intensity now under permanent magnet working gas gap farther out is weaker, and apart from permanent magnet
Polarizing magnetic field under nearer working gas gap is stronger, this resulted in electromagnetism iron circuit asymmetry, when exciting current magnetic field and
The magnetic field difference fold added-time of permanent magnet, the torque angle displacement characteristic of electromagnet is influenceed by exciting current direction, i.e., in different directions
The torque angle displacement characteristic amplitude obtained under exciting current, a kind of asymmetric feature is showed, when as valve electromechanical
For converter in use, this asymmetric torque angle displacement characteristic influences whether the positioning precision of 2D digital valves, it is not showed should
Some high-performance.To solve this problem, also have patent propose by rotor and stator tooth on radial and axial simultaneously side set, and
The symmetrical inserting type rotary electromagnet of magnetic circuit is formed using the method for rotor retainer injection molding, its torque angle displacement characteristic can be kept
Striking symmetry, shortcoming are that rotor can not be carried out with traditional machining mode, need special injection mold during making, take
When it is laborious；In addition, inserting type rotary electromagnet can not also form " wet type " high voltage bearing electromechanical converter.
The content of the invention
In order to overcome existing magnetic circuit symmetrical expression rotary magnet rotor can not be carried out with traditional machining mode,
It needs special injection mold when making, and wastes time and energy, and can not form asking for " wet type " high pressure resistant electromechanical converter
Topic, the present invention propose the high pressure resistant rotary magnet of the symmetrical rotating vane type of magnetic circuit a kind of simple in construction and simple processing.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of high pressure resistant rotary magnet of double symmetrical wet types of Alnico magnetic circuit, including drive end bearing bracket and rear end cap, it is described
Rotor part is installed on drive end bearing bracket and rear end cap, is separately installed with the drive end bearing bracket and rear end cap of described rotor part both sides
Stator component；The rotor part includes the rotor being arranged on by clutch shaft bearing and second bearing on drive end bearing bracket and rear end cap
Axle, interference it can be connected with rotor on center axis thereof, described armature spindle；Described stator component includes being arranged on rotor
The first permanent magnet, the second permanent magnet, the first yoke, the second yoke, the 3rd yoke, the 4th yoke, coil and the coil of both sides are protected
Hold frame；Between described the first yoke and the first permanent magnet by the first sealing ring be tightly connected, the first described permanent magnet with
It is tightly connected between second yoke by the 7th sealing ring；Pass through the second sealing between the 3rd described yoke and the second permanent magnet
Circle is tightly connected, and is tightly connected between described the second permanent magnet and the 4th yoke by the 8th sealing ring；The first described yoke
It is tightly connected between iron and drive end bearing bracket by the 3rd sealing ring, passes through the 4th sealing ring between the 4th described yoke and rear end cap
It is tightly connected；It is tightly connected between described coil retainer and the second yoke by the 5th sealing ring, described coil is kept
It is tightly connected between frame and the 3rd yoke by the 6th sealing ring.
Described the first yoke, the first permanent magnet, the second yoke, the 3rd yoke, the second permanent magnet, the 4th yoke are pacified successively
Between drive end bearing bracket and rear end cap, opening, and the second described yoke are offered on the second described yoke and the 3rd yoke
With the opening formation cavity staggered relatively on the 3rd yoke；Coil retainer is installed, described coil is protected in described cavity
Frame is held as circular coil retainer, coil composition current excitation source is surrounded with described coil retainer；Before described
First axle and utilization the 3rd are sequentially passed through between end cap, the first yoke, the second yoke, the 3rd yoke, the 4th yoke and rear end cap
Bearing, fourth bearing are connected, and the first yoke, the 4th yoke is embedded in respectively in the side wall of drive end bearing bracket and rear end cap.
The first described yoke and the 4th yoke are in annular shape；The second described yoke and the 3rd yoke are in half opening
Shape, and the opening formation cavity staggered relatively on second yoke, the 3rd yoke；Described the first yoke and the 4th yoke
Both sides offer toroidal cavity, and the side of second yoke and the 3rd yoke offers toroidal cavity；Described
First permanent magnet is circular first permanent magnet, and the second described permanent magnet is circular second permanent magnet；The first described yoke
It is inlaid with the first permanent magnet in the wherein toroidal cavity of 1 toroidal cavity and the second yoke of iron, and by axial magnetized into N
Pole and S poles；Second is inlaid with the wherein toroidal cavity of 1 toroidal cavity and the 4th yoke of the 3rd described yoke forever
Magnet, and by axial magnetized into N poles and S poles；Described the first yoke, the second yoke, the 3rd yoke, the 4th yoke interior annular
Periphery uniformly offers small tooth, and the small tooth number of teeth on the first yoke, the second yoke, the 3rd yoke, the 4th yoke is identical；Institute
Another 1 toroidal cavity for the first yoke stated is embedded on the boss of drive end bearing bracket；Another 1 annular of 4th yoke is recessed
Groove is embedded on the boss of rear end cap.
First yoke, the 4th yoke tooth form position are identical, side set 1/4 between described the second yoke and the first yoke
Individual tooth pitch, 1/2 tooth pitch of side set between the 3rd described yoke and the second yoke；The 3rd described yoke outer surface is provided with wire
Fairlead, it is connected with facilitating to draw coil-end with extraneous control circuit.
Described rotor is hollow cup-shaped rotor, and inner surface is square hole and described rotor outer circle side face offers
The small tooth of even distribution, the small tooth on small tooth and the first yoke, the second yoke, the 3rd yoke, the 4th yoke on described rotor
The number of teeth is equal.
The second axle is passed through between described drive end bearing bracket and rear end cap and is connected using 5th bearing.
Described drive end bearing bracket is non-magnetizer drive end bearing bracket made of non-magnet_conductible material；Described rear end cap is non-magnet_conductible material
Manufactured non-magnetizer rear end cap；Described coil retainer is non-magnetizer coil retainer made of non-magnet_conductible material；Institute
The armature spindle stated is non-magnetizer armature spindle made of non-magnet_conductible material；First yoke is magnetic conductor made of soft magnetic materials
First yoke；The second described yoke is the yoke of magnetic conductor second made of soft magnetic materials；The 3rd described yoke is soft magnetism material
The yoke of magnetic conductor the 3rd made of material；The 4th described yoke is the yoke of magnetic conductor the 4th made of soft magnetic materials；Described turns
Son is magnetic conductor rotor made of soft magnetic materials.
Beneficial effects of the present invention are：1st, improved double Alnico electromagnetic designs are passed through so that pass through the side of machining
Formula can also produce the high pressure resistant rotary magnet of the symmetrical wet type of magnetic circuit, and its is simple in construction, processing facility；2nd, employ simple
Reliable high pressure resistant structure so that electromagnet possesses the ability to be worked under wet type state.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of armature spindle of the present invention；
Fig. 3 is the structural representation of rotor of the present invention；
Fig. 4 is the structural representation of the second yoke of the invention；
Fig. 5 is the structural representation of the 3rd yoke of the invention；
Fig. 6 is the structural representation of rear end cap of the present invention or drive end bearing bracket；
Fig. 7 is the structural representation of the first permanent magnet or the second permanent magnet of the invention；
Fig. 8 be armature spindle side of the present invention rotor part and stator component initial position operation principle schematic diagram；
Fig. 8-1 is the side set situation schematic diagram of rotor under δ a air gaps in Fig. 8；
Fig. 8-2 is the side set situation schematic diagram of rotor under δ b air gaps in Fig. 8；
Fig. 8-3 is the side set situation schematic diagram of rotor under δ c air gaps in Fig. 8；
Fig. 8-4 is the side set situation schematic diagram of rotor under δ d air gaps in Fig. 8；
Fig. 9 is the rotor part and stator component of the utility model armature spindle side, and coil leads toDuring directional current
Operation principle schematic diagram；
Fig. 9-1 is the side set situation schematic diagram of rotor under δ a air gaps in Fig. 9；
Fig. 9-2 is the side set situation schematic diagram of rotor under δ b air gaps in Fig. 9；
Fig. 9-3 is the side set situation schematic diagram of rotor under δ c air gaps in Fig. 9；
Fig. 9-4 is the side set situation schematic diagram of rotor under δ d air gaps in Fig. 9；
Figure 10 be the utility model armature spindle side rotor part and stator component, and coil lead to ⊙ directional currents when
Operation principle schematic diagram；
Figure 10-1 is the side set situation schematic diagram of rotor under δ a air gaps in Figure 10；
Figure 10-2 is the side set situation schematic diagram of rotor under δ b air gaps in Figure 10；
Figure 10-3 is the side set situation schematic diagram of rotor under δ c air gaps in Figure 10；
Figure 10-4 is the side set situation schematic diagram of rotor under δ d air gaps in Figure 10.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Shown in reference picture 1~7, a kind of high pressure resistant rotary magnet of double symmetrical wet types of Alnico magnetic circuit, including drive end bearing bracket 3
With rear end cap 12, rotor part, the drive end bearing bracket of described rotor part both sides are installed on described drive end bearing bracket 3 and rear end cap 12
3 and rear end cap 12 on be separately installed with stator component；The rotor part includes pacifying by clutch shaft bearing 28 and second bearing 19
Armature spindle 14 on drive end bearing bracket 3 and rear end cap 12, interference it can be connected with center axis thereof, described armature spindle 14
Rotor 29；Described stator component includes the first permanent magnet 5, the second permanent magnet 10, the first yoke installed in the both sides of rotor 29
4th, the second yoke 6, the 3rd yoke 9, the 4th yoke 11, coil 7 and coil retainer 8；The first described yoke 4 and the first permanent magnetism
It is tightly connected between body 5 by the first sealing ring 26, passes through the 7th sealing between described the first permanent magnet 5 and the second yoke 6
Circle 25 is tightly connected；It is tightly connected between described the 3rd yoke 9 and the second permanent magnet 10 by the second sealing ring 22, it is described
It is tightly connected between second permanent magnet 10 and the 4th yoke 11 by the 8th sealing ring 21；The first described yoke 4 and drive end bearing bracket 3
Between be tightly connected by the 3rd sealing ring 30, it is close by the 4th sealing ring 20 between the 4th described yoke 11 and rear end cap 12
Envelope connection；It is tightly connected between the described yoke 6 of coil retainer 8 and second by the 5th sealing ring 24, described coil is protected
Hold and be tightly connected by the 6th sealing ring 23 between the yoke 9 of frame 8 and the 3rd.
Described the first yoke 4, the first permanent magnet 5, the second yoke 6, the 3rd yoke 9, the second permanent magnet 10, the 4th yoke
11 are sequentially arranged between drive end bearing bracket 3 and rear end cap 12, and opening, and institute are offered on the second described yoke 6 and the 3rd yoke 9
Opening formation cavity staggered relatively on the second yoke 6 stated and the 3rd yoke 9；Coil retainer is installed in described cavity
8, described coil retainer 8 is circular coil retainer, and being surrounded with coil 7 on described coil retainer 8 forms electricity
Flow excitation source；Between described drive end bearing bracket 3, the first yoke 4, the second yoke 6, the 3rd yoke 9, the 4th yoke 11 and rear end cap 12
Sequentially pass through first axle 1 and be connected using 3rd bearing 2, fourth bearing 13, the first yoke 4, the 4th yoke 11 is inlayed respectively
In the side wall of drive end bearing bracket 3 and rear end cap 12.
The first described yoke 4 and the 4th yoke 11 are in annular shape；The second described yoke 6 and the 3rd yoke 9 are in
Half opening shape, and the opening formation cavity staggered relatively on second yoke 6, the 3rd yoke 9；The described He of the first yoke 4
The both sides of 4th yoke 11 offer toroidal cavity 27, and the side of the yoke 9 of the second yoke 6 and the 3rd offers circle
Annular groove 27；The first described permanent magnet 5 is circular first permanent magnet, and the second described permanent magnet 10 is annular shape second
Permanent magnet；It is inlaid with the toroidal cavity 27 of wherein 1 yoke 6 of toroidal cavity 27 and second of the first described yoke 4
First permanent magnet 5, and by axial magnetized into N poles and S poles；Wherein 1 toroidal cavity 27 and the 4th of the 3rd described yoke 9
It is inlaid with the second permanent magnet 10 in the toroidal cavity 27 of yoke 11, and by axial magnetized into N poles and S poles；The first described yoke
Iron 4, the second yoke 6, the 3rd yoke 9, the periphery of the interior annular of the 4th yoke 11 uniformly offer small tooth 32, and the first yoke 4,
Second yoke 6, the 3rd yoke 9, the number of teeth of small tooth 32 on the 4th yoke 11 are identical；Another 1 annular of the first described yoke 4
Groove 27 is embedded on the boss of drive end bearing bracket 3；Another 1 toroidal cavity 27 of 4th yoke 11 is embedded in rear end cap 12
On boss.
First yoke 4, the tooth form position of the 4th yoke 11 are identical, wrong between described the second yoke 6 and the first yoke 4
1/4 tooth pitch of tooth, 1/2 tooth pitch of side set between described the 3rd yoke 9 and the second yoke 6；The described outer surface of the 3rd yoke 9
Wire fairlead 31 is provided with, is connected with facilitating to draw at the end of coil 7 with extraneous control circuit.
Described rotor 29 is hollow cup-shaped rotor, and inner surface is square hole and the described outer circumference surface of rotor 29 opens up
There is an equally distributed small tooth 32, the yoke 4 of small tooth 32 and first, the second yoke 6, the 3rd yoke the 9, the 4th on described rotor 29
The number of teeth of small tooth 32 on yoke 11 is equal.
It is connected through the second axle 15 between described drive end bearing bracket 3 and rear end cap 12 and using 5th bearing 16.
Described drive end bearing bracket 3 is non-magnetizer drive end bearing bracket made of non-magnet_conductible material；Described rear end cap 12 is not magnetic conduction
Non-magnetizer rear end cap made of material；Described coil retainer 8 is that non-magnetizer coil made of non-magnet_conductible material is kept
Frame；Described armature spindle 14 is non-magnetizer armature spindle made of non-magnet_conductible material；First yoke 4 is made up of soft magnetic materials
The yoke of magnetic conductor first；The second described yoke 6 is the yoke of magnetic conductor second made of soft magnetic materials；The 3rd described yoke
9 be the yoke of magnetic conductor the 3rd made of soft magnetic materials；The 4th described yoke 11 is the yoke of magnetic conductor the 4th made of soft magnetic materials
Iron；Described rotor 29 is magnetic conductor rotor made of soft magnetic materials.
Exemplified by the present embodiment offers the structure of 7 small tooth 35 to be uniformly distributed on the outer circumference surface of rotor 29, with reference to accompanying drawing
The invention will be further described.
When there is fluid to enter working rotor chamber, pass through the first sealing ring between described the first yoke 4 and the second yoke 6
26th, the 7th sealing ring 25 is tightly connected；Pass through the second sealing ring the 22, the 8th between the 3rd described yoke 9 and the 4th yoke 11
Sealing ring 21 is tightly connected；It is tightly connected between the first described yoke 4 and drive end bearing bracket 3 by the 3rd sealing ring 30, it is described
Be tightly connected between 4th yoke 11 and rear end cap 12 by the 4th sealing ring 20=, with prevent fluid from electromagnet parts it
Between fit clearance in leak out；Sealed and connected by the 5th sealing ring 24 between the described yoke 6 of coil retainer 8 and second
Connect, be tightly connected between the described yoke 9 of coil retainer 8 and the 3rd by the 6th sealing ring 23 so that coil 7 is with being full of oil
The working rotor chamber of liquid is isolated；Above-mentioned is high pressure resistant simple and reliable for structure, easily realizes, so that electromagnet is provided with
The ability to be worked under wet type state.
As shown in figure 8, in the case of coil 7 is cold, whole electromagnet only has the first permanent magnet 5, the second permanent magnet
Polarizing magnetic field caused by 10, and magnetic circuit is symmetrical so that and electromagnet can rest on initial rest position when not working,
And original position is automatically replied when power is off；
Operation principle：Such as Fig. 8,8-1,8-2,8-3, shown in 8-4, the first yoke 4, the second yoke 6, the 3rd yoke the 9, the 4th
Yoke 11 forms four sections of effective working gas gap δ d, δ c, δ b, δ a with rotor 29 respectively, when 7 obstructed electric current of coil, respectively extremely descends work
There was only polarizing magnetic field caused by the first permanent magnet 5 and the second permanent magnet 10 in acting air gap, electromagnet will rest on system automatically
The maximum position of total magnetic conductance, i.e. initial position；When coil 7 is passed through the electric current of X-direction as shown in Figure 9, working gas gap is respectively extremely descended
Do not only have polarizing magnetic field caused by the first permanent magnet 5 and the second permanent magnet 10 inside, control magnetic field also caused by coil 7, work
Air gap delta a and δ d only have polarizing magnetic field caused by the first permanent magnet 5 and the second permanent magnet 10, working gas gap δ b and δ c existing first
Polarizing magnetic field caused by the permanent magnet 10 of permanent magnet 5 and second, also there is control magnetic field caused by coil 7, and at working gas gap δ c
Magnetic flux caused by polarizing magnetic field and control magnetic field is overlapped mutually and strengthened, polarizing magnetic field and the production of control magnetic field at working gas gap δ b
Raw magnetic flux is cancelled out each other and weakened, then now electro-magnet rotor is rotated 1/ by clockwise torque (seeing from left to right)
4 tooth pitches reach new equilbrium position, such as Fig. 9,9-1,9-2,9-3, shown in 9-4；Similarly, when coil 7 is passed through such as Figure 10 institutes
When showing the electric current in ⊙ directions, respectively extremely descend in working gas gap not only having polarization magnetic caused by the first permanent magnet 5 and the second permanent magnet 10
, also control magnetic field, working gas gap δ a and δ d only have caused by the first permanent magnet 5 and the second permanent magnet 10 caused by coil 7
Polarizing magnetic field, polarizing magnetic field caused by the existing permanent magnets 10 of first permanent magnet 5 and second of working gas gap δ b and δ c, also there is coil production
Raw control magnetic field, and polarizing magnetic field is cancelled out each other and weakened with magnetic flux caused by control magnetic field at working gas gap δ c, in work
At acting air gap δ b polarizing magnetic field and control magnetic field caused by magnetic flux be overlapped mutually and strengthen, then now electro-magnet rotor by the inverse time
The torque (seeing from left to right) in pin direction rotates 1/4 tooth pitch and reaches new equilbrium position, such as Figure 10,10-1,10-2,10-3,
Shown in 10-4.
Work as coil blackout, electromagnet is returned to such as Fig. 8 in the presence of the first permanent magnet 5 and the polarizing magnetic field of the second permanent magnet 10
Shown initial rest position.It can be seen that as long as the current switching of coil 7, it is possible to control the two-way quick next of electromagnet
Reverse work, and suitably adjusts the structural parameters of electromagnet in itself, the angle that rotor can be controlled to rotate.
The present embodiment passes through improved double Alnico electromagnetic designs so that can also be produced by way of machining
The high pressure resistant rotary magnet of the symmetrical wet type of magnetic circuit, its is simple in construction, processing facility；And employ simple and reliable high pressure resistant
Structure so that electromagnet possesses the ability to be worked under wet type state.
Above-mentioned embodiment is used for explaining the present invention, rather than limits the invention, in the spirit of the present invention
In scope of the claims, to any modifications and changes of the invention made, protection scope of the present invention is both fallen within.
Claims (5)
- A kind of 1. high pressure resistant rotary magnet of double symmetrical wet types of Alnico magnetic circuit, it is characterised in that including drive end bearing bracket (3) and after Rotor part, the front end of described rotor part both sides are installed on end cap (12), described drive end bearing bracket (3) and rear end cap (12) Stator component is separately installed with lid (3) and rear end cap (12)；The rotor part includes passing through clutch shaft bearing (28) and second Bearing (19) is arranged on the armature spindle (14) on drive end bearing bracket (3) and rear end cap (12), on described armature spindle (14) interference connect There is rotor (29)；Described stator component includes the first permanent magnet (5), the second permanent magnet installed in rotor (29) both sides (10), the first yoke (4), the second yoke (6), the 3rd yoke (9), the 4th yoke (11), coil (7) and coil retainer (8)； It is tightly connected between described the first yoke (4) and the first permanent magnet (5) by the first sealing ring (26), the first described permanent magnetism It is tightly connected between body (5) and the second yoke (6) by the 7th sealing ring (25)；The 3rd described yoke (9) and the second permanent magnetism It is tightly connected by the second sealing ring (22) between body (10), is led between described the second permanent magnet (10) and the 4th yoke (11) Cross the sealed connection of the 8th sealing ring (21)；It is close by the 3rd sealing ring (30) between described the first yoke (4) and drive end bearing bracket (3) Envelope connection, is tightly connected between the 4th described yoke (11) and rear end cap (12) by the 4th sealing ring (20)；Described line Enclose retainer (8) with the second yoke (6) between by the 5th sealing ring (24) be tightly connected, described coil retainer (8) and It is tightly connected between 3rd yoke (9) by the 6th sealing ring (23)；Described the first yoke (4), the first permanent magnet (5), Two yokes (6), the 3rd yoke (9), the second permanent magnet (10), the 4th yoke (11) are sequentially arranged at drive end bearing bracket (3) and rear end cap (12) between, opening, and described the second yoke (6) and the 3rd are offered on described the second yoke (6) and the 3rd yoke (9) Opening formation cavity staggered relatively on yoke (9)；Coil retainer (8) is installed, described coil is protected in described cavity Frame (8) is held as circular coil retainer, coil (7) composition current excitation source is surrounded with described coil retainer (8)； Described drive end bearing bracket (3), the first yoke (4), the second yoke (6), the 3rd yoke (9), the 4th yoke (11) and rear end cap (12) Between sequentially pass through first axle (1) and using 3rd bearing (2), fourth bearing (13) be connected, make the first yoke (4), the 4th yoke Iron (11) is embedded in the side wall of drive end bearing bracket (3) and rear end cap (12) respectively；Described the first yoke (4) and the 4th yoke (11) In annular shape；Described the second yoke (6) and the 3rd yoke (9) are in half opening shape, and second yoke (6), the 3rd Opening formation cavity staggered relatively on yoke (9)；Described the first yoke (4) and the both sides of the 4th yoke (11) offer The side of toroidal cavity (27), second yoke (6) and the 3rd yoke (9) offers toroidal cavity (27)；It is described The first permanent magnet (5) be circular first permanent magnet, described the second permanent magnet (10) is circular second permanent magnet；It is described The first yoke (4) the wherein toroidal cavity (27) of 1 toroidal cavity (27) and the second yoke (6) in be inlaid with first Permanent magnet (5), the wherein toroidal cavity of 1 toroidal cavity (27) and the 4th yoke (11) of the 3rd described yoke (9) (27) the second permanent magnet (10) is inlaid with；Described the first yoke (4), the second yoke (6), the 3rd yoke (9), the 4th yoke (11) periphery of interior annular uniformly offers small tooth (32), and the first yoke (4), the second yoke (6), the 3rd yoke (9), Small tooth (32) number of teeth on four yokes (11) is identical；Before another 1 toroidal cavity (27) of described the first yoke (4) is embedded in On the boss of end cap (3)；Another 1 toroidal cavity (27) of 4th yoke (11) is embedded in the boss of rear end cap (12) On.
- A kind of 2. high pressure resistant rotary magnet of double symmetrical wet types of Alnico magnetic circuit as claimed in claim 1, it is characterised in that First yoke (4), the 4th yoke (11) tooth form position are identical, wrong between described the second yoke (6) and the first yoke (4) 1/4 tooth pitch of tooth, 1/2 tooth pitch of side set between the 3rd described yoke (9) and the second yoke (6)；The 3rd described yoke (9) Outer surface is provided with wire fairlead (31).
- A kind of 3. high pressure resistant rotary magnet of double symmetrical wet types of Alnico magnetic circuit as claimed in claim 1, it is characterised in that Described rotor (29) is hollow cup-shaped rotor, and inner surface is square hole and described rotor (29) outer circumference surface offers The small tooth (32) of even distribution, small tooth (32) and the first yoke (4), the second yoke (6), the 3rd yoke on described rotor (29) (9) small tooth (32) number of teeth, on the 4th yoke (11) is equal.
- A kind of 4. high pressure resistant rotary magnet of double symmetrical wet types of Alnico magnetic circuit as claimed in claim 1, it is characterised in that It is connected through the second axle (15) between described drive end bearing bracket (3) and rear end cap (12) and using 5th bearing (16).
- A kind of 5. high pressure resistant rotary magnet of double symmetrical wet types of Alnico magnetic circuit as claimed in claim 1, it is characterised in that Described drive end bearing bracket (3) is non-magnetizer drive end bearing bracket made of non-magnet_conductible material；Described rear end cap (12) is non-magnet_conductible material Manufactured non-magnetizer rear end cap；Described coil retainer (8) is non-magnetizer coil retainer made of non-magnet_conductible material； Described armature spindle (14) is non-magnetizer armature spindle made of non-magnet_conductible material；First yoke (4) is soft magnetic materials system Into the yoke of magnetic conductor first；Described the second yoke (6) is the yoke of magnetic conductor second made of soft magnetic materials；Described the 3rd Yoke (9) is the yoke of magnetic conductor the 3rd made of soft magnetic materials；The 4th described yoke (11) is magnetic conduction made of soft magnetic materials The yoke of body the 4th；Described rotor (29) is magnetic conductor rotor made of soft magnetic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN201510784447.7A CN105375660B (en) | 2015-11-16 | 2015-11-16 | A kind of high pressure resistant rotary magnet of double symmetrical wet types of Alnico magnetic circuit |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572159A (en) * | 2009-02-26 | 2009-11-04 | 浙江工业大学 | High pressure resistant rotary electromagnet with low inertia |
| CN205429904U (en) * | 2015-11-16 | 2016-08-03 | 浙江工业大学之江学院 | High pressure resistant rotary electromagnet of wet -type of two magnet steel formula magnetic circuits symmetry |
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| JP2883225B2 (en) * | 1991-07-10 | 1999-04-19 | 三菱電機株式会社 | Heat resistant pressure resistant permanent magnet synchronous motor |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572159A (en) * | 2009-02-26 | 2009-11-04 | 浙江工业大学 | High pressure resistant rotary electromagnet with low inertia |
| CN205429904U (en) * | 2015-11-16 | 2016-08-03 | 浙江工业大学之江学院 | High pressure resistant rotary electromagnet of wet -type of two magnet steel formula magnetic circuits symmetry |
Non-Patent Citations (1)
| Title |
|---|
| 新型2D阀用电-机械转换器及其应用研究;孟彬;《中国博士学位论文全文数据库工程科技Ⅱ辑》;20130601;全文 * |
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