CN107091256B - A kind of electro-hydraulic actuator of the more intellectual material drivings of active Flat valve - Google Patents
A kind of electro-hydraulic actuator of the more intellectual material drivings of active Flat valve Download PDFInfo
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- CN107091256B CN107091256B CN201710444966.8A CN201710444966A CN107091256B CN 107091256 B CN107091256 B CN 107091256B CN 201710444966 A CN201710444966 A CN 201710444966A CN 107091256 B CN107091256 B CN 107091256B
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- shell
- intellectual material
- piston
- inductive block
- magnetic inductive
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/18—Combined units comprising both motor and pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention discloses a kind of electro-hydraulic actuator of more intellectual material drivings of active Flat valve, is related to electric hydrostatic movement device technical field, can be improved the stability of output performance, and realizes more pump periodic duties.Actuator of the present invention includes electrical converter, intellectual material, aggressive valve and hydraulic cylinder；Electrical converter includes shell, it is installed on the end cap of upper shell, the pedestal of shell lower end, the output rod for being installed on cover internal is installed on, is installed on top side in shell and field generating unit is installed on coil rack that the upper magnetic inductive block of output rod lower end, the pressure sensor being mounted in pedestal, the lower magnetic inductive block for being mounted on above pressure sensor and contacting with shell, installation contact inside the shell and with lower magnetic inductive block, coil rack.The present invention is suitable for the stability of raising movement device, and realizes more pump periodic duties.
Description
Technical field:
It is driven the present invention relates to electric hydrostatic movement device technical field more particularly to a kind of more intellectual materials of active Flat valve
Electro-hydraulic actuator.
Background technique:
Actuator is a kind of executing agency for the power-by-wire being commonly used, due to the hair at full speed of unmanned air vehicle technique
Exhibition, it is desirable to which airborne actuator gradually develops towards the direction of little Ti Ji ﹑ Gao Pin Xiang ﹑ high power density.In recent years, due to dilute
Native giant magnetostrictive material (Ginat Magnetosrtietive Material, GMM) can effectively realize electromagnetic energy-machinery
The reversible transition of energy, having should become larger, and fast response time, the excellent properties such as energy transmission density height and High power output are applied
In the research, manufacture of actuator.Ultra-magnetic telescopic electricity hydrostatic actuator (Giant Magnetostrictive
Electro-Hydrostatic Actuator, GMEHA) it is exactly the novel all-in-one electricity hydrostatic actuator that GMM is utilized.
The driving magnetic field of GMEHA is usually generated by the combination of coil or coil, permanent magnet, and current mainstay mainly has: 1, mangneto
Flexible solid-liquid mixes actuator: causing changes of magnetic field when driving coil is passed through a constant current, GMM rod will generate certain stretch
Displacement pushes magnetic inductive block and output rod to move back and forth, so that the reciprocating motion of the pistons being connected through a screw thread with output rod is driven, into
And realize oil liquid suction.Pre-pressure mechanism is by drive end bearing bracket, disc spring, and the composition such as output rod, effect is the precompressed certain to GMM rod
Power.The oil suction of pump is connected with oil drain passage with two grooves of aggressive valve, thus when realizing suction oil oil liquid one-way flow.Row
Oil liquid out flows into the high-pressure side of hydraulic cylinder, so that piston rod movement is pushed, the oil return side that the oil liquid of low-pressure side is sent out by active
Flow back to pump chamber；2, compact mixing actuator: power is provided by a hydraulic pump, at least one in pump provides for example super of displacement
Magnetostriction materials component, the displacement provided drive piston motion that can adjust the volume of pump chamber, are controlled by driving valve
The outbound course of oil liquid, so that hydraulic cylinder be pushed to be moved.
But the above magnetostriction solid-liquid mixing actuator implementation has the following deficiencies: current actuator to GMM
When stick applies precompression, can only qualitatively it apply by experience, due to the too big or too small output by direct GMM rod of precompression
Can, therefore the output performance for causing GMM rod is unstable.And if the driving frequency of magnetostrictive rod and the revolving speed actively sent out are not
Match, will lead to hydraulic cylinder and move up and down or even do not move.
Summary of the invention:
The present invention is to provide a kind of more intellectual materials of active Flat valve to solve the above-mentioned problems of the prior art
The electro-hydraulic actuator of driving can be improved the stability of output flow, and realize more pump periodic duties.
The technical solution adopted in the present invention has: a kind of electro-hydraulic actuator of the more intellectual material drivings of active Flat valve, packet
Include electrical converter, intellectual material, aggressive valve, motor contact and hydraulic cylinder；
The electrical converter includes shell, is installed on the end cap of upper shell, is installed on pedestal, the installation of shell lower end
In cover internal output rod, be installed in shell top side and in the upper magnetic inductive block of output rod lower end, be mounted in pedestal
Pressure sensor, be mounted on above pressure sensor and contacted with shell lower magnetic inductive block, installation led inside the shell and under
The coil rack of magnetic patch contact is equipped with field generating unit on coil rack, and the upper shell is equipped with pump cover, on pump cover
End is equipped with pump cover, is equipped with flexible sheet between pump cover and pump cover, flexible sheet top and bottom are separately installed with piston
Head and piston, there are pump chambers between pump cover and piston head；
The intellectual material is installed in coil rack, and intellectual material and lower magnetic inductive block contact side are fixing end, intelligence
Can material close to upper magnetic inductive block side be output end, output end by output rod band piston move back and forth, output rod and
Precompressed disc spring is installed between end cap；
The aggressive valve includes valve body and spool, and the oil outlet on pump cover is aligned with the oil inlet of valve body lower end, valve body with
Spool is sealed by the shaft shoulder, and motor contact is connect with valve body screw thread；
The valve body upper surface is equipped with the manifold to connect with hydraulic cylinder, and the right end of the manifold is connected to accumulator, manifold
Upper surface support is installed, the support includes left support abutment and right support abutment, logical in the left end of left support abutment and the right end of right support abutment
It crosses and is threaded with end cap, end cap is sealed by ring type seal, and the inner wall of support is equipped with straight line by interference fit
Bearing, the upper surface of support are equipped with sealing baffle, and cylinder barrel is equipped between left support abutment and right support abutment, is installed between linear bearing
There is piston rod, be connected through a screw thread sliding plunger among piston rod, piston baffle is connected at left and right sides of sliding plunger simultaneously
By being threadably mounted on piston rod.
Further, the end cap is threadedly coupled with upper shell inner wall, the upper magnetic inductive block and outer casing inner wall face spiral shell
Line connection, pedestal are installed on shell lower end by bolt mode, and the output rod and upper magnetic inductive block inner wall surface are face contact, defeated
Rod lower end surface and intellectual material upper surface are face contact, and intellectual material lower end surface and pedestal upper surface are face contact, lower magnetic conduction
Block outer wall and base inner wall are face contact, and pressure sensor and pedestal lower end surface are face contact, and interior of shell is equipped with the first magnetic conduction
Ring and the second magnetic guiding loop, the first magnetic guiding loop, the second magnetic guiding loop and shell are clearance fit, the permanent magnet and the first magnetic guiding loop,
Second magnetic guiding loop is alternately arranged at the inside of shell.
Further, the pump cover lower end inner wall surface is threadedly coupled with upper shell outer wall surface, pump cover upper end inner wall
Surface and pump cover lower end outer wall surface face contact are simultaneously bolted, the flexible sheet between piston head and piston, and
It is linked into an integrated entity by soket head cap screw and piston head and piston.
Further, the valve body is connect with manifold by hexagon socket head cap screw, and the support is installed by hexagon socket head cap screw
In on manifold, sealing baffle is fixed on the support by soket head cap screw, the outer wall surface and both ends of the surface of cylinder barrel respectively with support
Inner wall surface face contact, described sliding plunger or so end face and piston baffle end face face contact.
Further, further include installation inside the shell and permanent magnet and magnetic conduction between lower magnetic inductive block and upper magnetic inductive block
Ring, permanent magnet and magnetic guiding loop are alternately distributed.
Further, the groove opened up on the spool all on a shaft shoulder, is alternately slotted.
Further, the output rod upper part is cylindrical structure, and is drilled with threaded hole, and middle section is disc
Structure, and it is drilled with cylindrical hole, lower part is cylindrical structure, is drilled with threaded hole on the upper magnetic inductive block.
Further, the coil rack is made of polytetrafluoroethylene (PTFE).
The invention has the following beneficial effects: the electro-hydraulic actuator of active Flat valve of the present invention more intellectual materials driving,
It is integrated with the pressure sensor for detecting pressure in movement device, realizes and knows the big of precompression in real time by pressure sensor
It is small, thus the accurately working performance of understanding movement device.It avoids when applying precompression to GMM rod, can only qualitatively lean on experience
Apply, due to the too big or too small output performance by direct GMM rod of precompression, causes the output performance of GMM stick not
Stable problem.To improve the discharge stability of the actuator course of work.
Detailed description of the invention:
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the structural representation of the electro-hydraulic actuator of the more intellectual material drivings of active Flat valve provided in an embodiment of the present invention
Figure.
Fig. 2 is the attachment structure schematic diagram of output rod provided in an embodiment of the present invention and piston.
Fig. 3 is the structural schematic diagram of aggressive valve provided in an embodiment of the present invention.
Fig. 4 is the cross-sectional view of aggressive valve.
Fig. 5 is another cross-sectional view of aggressive valve.
Fig. 6 is the schematic three dimensional views of spool provided in an embodiment of the present invention (by taking four grooves as an example).
Fig. 7 is the schematic diagram that hydraulic cylinder provided in an embodiment of the present invention is matched with valve body.
Fig. 8 is the driving signal of more asynchronous drivings of stick provided in an embodiment of the present invention.
Specific embodiment:
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
The present invention discloses a kind of electro-hydraulic actuator of more intellectual material drivings of active Flat valve, including electrical converter, intelligence
Can material, aggressive valve and hydraulic cylinder, wherein hydraulic cylinder by piston rod 13, end cap 14, support 15, sealing baffle 16, cylinder barrel 17,
Piston baffle 18, sliding plunger 19, linear bearing 20 and ring type seal 21 form.
Electrical converter includes shell 3, is installed on the end cap 8 of 3 upper end of shell, is installed on pedestal 1, the peace of 3 lower end of shell
Loaded on inside end cap 8 output rod 28, be installed in shell 3 top side and in the upper magnetic inductive block 7 of 28 lower end of output rod, installation
In pedestal 1 pressure sensor 33, be mounted on above pressure sensor 33 and contacted with shell 3 lower magnetic inductive block 2, be mounted on
Field generating unit is installed on the coil rack 5 that contacts in shell 3 and with lower magnetic inductive block 2, coil rack 5.The present invention is implemented
Example middle line ring framework 5 is made of polytetrafluoroethylene (PTFE).
The present invention is suitable for the stability of raising movement device, and realizes more pump periodic duties.3 upper end of shell is equipped with pump
Cover 9,9 upper ends of pump cover are equipped with pump cover 11, are equipped with flexible sheet 10,10 upper end of flexible sheet between pump cover 9 and pump cover 11
It is separately installed with piston head 25 and piston 26 with lower end, there are pump chambers between pump cover 11 and piston head 25.
Intellectual material (by taking magnetostriction materials as an example) 31 is installed in coil rack 5, intellectual material 31 and lower magnetic inductive block 2
Contact side is fixing end, and intellectual material 31 is output end close to upper 7 side of magnetic inductive block, and output end is driven by output rod 28 and lived
Plug 26 moves back and forth, and precompressed disc spring 27 is equipped between output rod 28 and end cap 8.28 upper part of output rod is cylindrical type
Structure, and it is drilled with threaded hole, middle section is disc-shaped structure, and is bored there are four cylindrical hole, and lower part is cylindrical knot
Structure, bores that there are two threaded holes on upper magnetic inductive block 7.
Aggressive valve includes valve body 24 and spool 23, and the oil outlet on pump cover 11 requires the oil inlet pair with 24 lower end of valve body
Together, can not arranged in dislocation, valve body 24 seals with 23 requirement of spool with the shaft shoulder, it is therefore necessary to be transition fit, and gap can not
Ether is big；And the shaft shoulder of the left and right of spool 23 two can be too far at a distance from the intermediate shaft shoulder, the number of grooves of spool 23 can be
Multiple, the present invention is by taking 4 grooves as an example, but in the spool of other more grooves all belongs to the scope of protection of the present invention.Spool 23
The groove opened is entirely alternately to slot on a shaft shoulder.
24 upper surface of valve body is equipped with the manifold 12 to connect with hydraulic cylinder, and the right end of manifold 12 is connected to accumulator, hydraulic cylinder
Support 15 be installed on the upper surface of manifold 12, support 15 includes left support abutment and right support abutment, left end and right support abutment in left support abutment
Right end be connected through a screw thread the two end cap 14 of hydraulic cylinder, two linear bearings 20 are installed on the interior of support 15 by interference fit
Wall, two sealing baffles 16 are mounted on 15 upper surface of support, and cylinder barrel 17 is mounted between support 15, and piston rod 13 is installed on support
Between two linear bearings 20 in 15, sliding plunger 19 is threadingly attached among piston rod 13, in sliding plunger 19
The left and right sides is connected to piston baffle 18 and by being threadably mounted on piston rod 13.
End cap 8 is threadedly coupled with 3 upper end inner wall of shell, and upper magnetic inductive block 7 is threadedly coupled with 3 inner wall of shell, and pedestal 1 is logical
It crosses bolt mode and is installed on 3 lower end of shell.Output rod 28 and upper 7 inner wall surface of magnetic inductive block are face contact, 28 lower end surface of output rod
It is face contact with 31 upper surface of intellectual material, 31 lower end surface of intellectual material and 1 upper surface of pedestal are face contact, outside lower magnetic inductive block 2
Wall and 1 inner wall of pedestal are face contact, and pressure sensor 33 and 1 lower end surface of pedestal are face contact.
9 lower end inner wall surfaces of pump cover are threadedly coupled with 3 upper end outer wall surface of shell, pump 9 upper end inner wall surfaces of cover and pump cover
11 lower end outer wall surface face contacts are simultaneously bolted, and flexible sheet 10 passes through interior between piston head 25 and piston 26
Hex screw links into an integrated entity with piston head 25 and piston 26.
Valve body 24 is connect with manifold 12 by hexagon socket head cap screw, and support 15 is installed on manifold 12 by hexagon socket head cap screw,
Two sealing baffles 16 are fixed on support 15 by soket head cap screw, the outer wall surface and both ends of the surface of cylinder barrel 17 respectively with support
15 inner wall surface face contact, 19 or so end face of sliding plunger and 18 end face face contact of piston baffle.
The electro-hydraulic actuator of the more intellectual material drivings of active Flat valve of the present invention further includes being mounted in shell 3 and leading under
Permanent magnet 4 between magnetic patch 2 and upper magnetic inductive block 7 is alternately distributed with magnetic guiding loop 6, permanent magnet 4 and magnetic guiding loop 6, aggressive valve of the present invention
The driving magnetic field generating unit of the electro-hydraulic actuator of the more intellectual material drivings of flow is the more intelligence of active Flat valve of the present invention of coil 32
The bias magnetic field generating unit of the electro-hydraulic actuator of energy material driving is permanent magnet 4.
The substantially working principle of the electro-hydraulic actuator of the more intellectual material drivings of active Flat valve of the present invention includes: permanent magnet 4
Bias magnetic field is generated in field generating unit to guarantee that giant magnetostrictive rod works under preset static pressure state, and makes it
Work generates pre-stretched amount in linear region to eliminate frequency multiplication phenomenon, and sinusoidal drive signals generate drive in field generating unit
Moving field magnetizes giant magnetostrictive rod and generates magnetostriction.Under bias magnetic field and sinusoidal drive magnetic field collective effect, make
Giant magnetostrictive rod is generated using pre-stretched amount as the variation magnetostriction of initial position.Giant magnetostrictive rod generates magnetostrictive
Output rod 28 and piston 26 is pushed to move reciprocatingly simultaneously.When giant magnetostrictive rod elongation, output rod 28 is moved up, piston 26
Pump chamber is compressed, flexible sheet 10 is bent upwards, and pump chamber reduces, and pump chamber is in the oil extraction stage；When giant magnetostrictive rod is shunk,
Output rod 28 moves downward under the resilient force of precompressed disc spring 27, drawing of the piston 26 connecting with output rod 28 in output rod
It being moved downward under power and the resilient force of flexible sheet, pump chamber increases, under the action of accumulator, pump chamber oil suction.
Pump chamber oil extraction process makes the oil in pump chamber constantly be discharged to the left end of hydraulic cylinder sliding plunger, increases the oil liquid pressure in left side, and
Since Low rigidity accumulator pressure approximate constant, different pressure action pistons generate pressure difference on the right side of piston, pushes and live
Plug drives piston rod to move right；Oil liquid on the right side of pump chamber oil-absorbing process hydraulic cylinder may return to pump chamber again, to make actuator
Oil liquid is provided without ambient fuel tank, multiple, the mutual not phase of the driving frequency of each pump hydraulic pump can be made into same principle
Together.(for the present invention by taking three sticks as an example, the intellectual material more than three is also in the protection permission of the invention patent), so that each
The driving frequency of stick differs 120 degree, realize hydraulic pump continuous oil extraction and continuous oil-absorbing process, improve the movement of actuator
Stationarity.
Actuator provided in an embodiment of the present invention is integrated with the pressure sensor for detecting pressure in movement device, real
The size for knowing precompression in real time by pressure sensor is showed, thus the accurately working performance of understanding movement device.It avoids
When applying precompression to GMM rod, can only qualitatively it apply by experience, it is too big or too small by direct GMM rod due to precompression
Output performance, therefore the problem that the output performance that causes GMM rod is unstable.To improve the stabilization of the movement device course of work
Property.
Closed magnetic circuit in the electro-hydraulic actuator of the more intellectual material drivings of active Flat valve of the present invention is by lower 2 ﹑ intelligence of magnetic inductive block
It can material (by taking magnetostriction materials as an example) 31 (more intellectual material) ﹑ output rods 28,7 ﹑ magnetic guiding loop 6 of upper magnetic inductive block and forever
Magnet 4 constitute, in addition to intellectual material 31 is with permanent magnet 4, remaining material select permeability magnetic material metal material of good performance from
And guarantee that magnetic circuit closure and leakage field are small.It is alternately distributed in structure by permanent magnet 4 and magnetic guiding loop 6 and both improves permanent magnet generation magnetic
The uniformity of field is also effectively reduced leakage field, and 31 axial dimension of intellectual material is close or equal to the axial direction of driving magnetic field
When size, it can guarantee in this way by the field homogeneity in intellectual material 31.The present invention uses permanent magnetism unicoil driving method,
I.e. permanent magnet 4 provide bias magnetic field, be alternately distributed by permanent magnet 4 and magnetic guiding loop 6, not only improved the uniformity of bias magnetic field but also
Leakage field is effectively reduced, coil improves driving magnetic field.Which have it is compact-sized, coil turn is small, generates heat the advantages that small.
The present invention is by taking three intellectual materials as an example, but three and three or more intellectual materials are also in the protection model of this patent
Within enclosing.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
It for member, can also make several improvements without departing from the principle of the present invention, these improvement also should be regarded as of the invention
Protection scope.
Claims (7)
1. a kind of electro-hydraulic actuator of the more intellectual material drivings of active Flat valve, it is characterised in that: including electrical converter, intelligence
Material, aggressive valve, motor contact and hydraulic cylinder；
The electrical converter includes shell (3), is installed on the end cap (8) of shell (3) upper end, is installed on shell (3) lower end
Pedestal (1) is installed on the internal output rod (28) of end cap (8), is installed in shell (3) top side and under output rod (28)
End upper magnetic inductive block (7), be mounted in pedestal (1) pressure sensor (33), be mounted on pressure sensor (33) above and with
The lower magnetic inductive block (2) of shell (3) contact is mounted on coil rack (5), the coil contacted in shell (3) and with lower magnetic inductive block (2)
Field generating unit is installed, shell (3) upper end is equipped with pump cover (9), and pump cover (9) upper end is equipped with pump on skeleton (5)
It covers (11), is equipped with flexible sheet (10) between pump cover (9) and pump cover (11), flexible sheet (10) top and bottom are pacified respectively
Equipped with piston head (25) and piston (26), there are pump chambers between pump cover (11) and piston head (25)；
The intellectual material (31) is installed in coil rack (5), and intellectual material (31) and lower magnetic inductive block (2) contact side are solid
Fixed end, intellectual material (31) are output end close to upper magnetic inductive block (7) side, and output end passes through output rod (28) band piston (26)
It moves back and forth, precompressed disc spring (27) is installed between output rod (28) and end cap (8)；
The aggressive valve includes valve body (24) and spool (23), and valve body (24) and spool (23) are sealed by the shaft shoulder, motor connection
Part (22) is threadedly coupled with valve body (24), and valve body (24) upper surface is equipped with the manifold (12) to connect with hydraulic cylinder, described
Hydraulic fluid port there are five being set on valve body (24), wherein two hydraulic fluid ports for being located at valve body (24) upper surface are connected with manifold (12), in addition
Three hydraulic fluid ports are oil inlet, are evenly arranged on the outer surface of valve body (24), three electrical converters be connected respectively to three into
Valve body surface where hydraulic fluid port, the oil inlet alignment of the oil outlet valve body surface connected to it on each electrical converter pump cover and
120 degree of the phase phase difference of each electrical converter driving frequency；
The right end of the manifold (12) is connected to accumulator, and the upper surface of manifold (12) is equipped with support (15), the support (15)
Including left support abutment and right support abutment, end cap (14) are connected separately with by screw thread in the left end of left support abutment and the right end of right support abutment, it should
End cap (14) is sealed by ring type seal (21), and the inner wall of support (15) is equipped with linear bearing by interference fit
(20), the upper surface of support (15) is equipped with sealing baffle (16), and cylinder barrel (17), straight line are equipped between left support abutment and right support abutment
It is equipped between bearing (20) piston rod (13), has been connected through a screw thread sliding plunger (19) among piston rod (13), sliding is lived
Piston baffle (18) is connected at left and right sides of plug (19) and by being threadably mounted on piston rod (13).
2. the electro-hydraulic actuator of the more intellectual material drivings of active Flat valve as described in claim 1, it is characterised in that: the electricity
The end cap (8) of machine converter is threadedly coupled with shell (3) upper end inner wall, the upper magnetic inductive block (7) and shell (3) inner wall spiral shell
Line connection, pedestal (1) are installed on shell (3) lower end, the output rod (28) and upper magnetic inductive block (7) inner wall table by bolt mode
Face is face contact, and output rod (28) lower end surface and intellectual material (31) upper surface are face contact, intellectual material (31) lower end surface with
Lower magnetic inductive block (2) upper surface is face contact, and pressure sensor (33) and lower magnetic inductive block (2) lower end surface are face contact, lower magnetic inductive block
(2) outer wall and pedestal (1) inner wall are face contact, and pressure sensor (33) is face contact, shell with pedestal (1) internal lower end surface
(3) internal to be equipped with the first magnetic guiding loop (29) and the second magnetic guiding loop (30), the first magnetic guiding loop (29), the second magnetic guiding loop (30) and shell
It (3) is clearance fit, permanent magnet (4) is alternately arranged at the interior of shell (3) with the first magnetic guiding loop (29), the second magnetic guiding loop (30)
Portion.
3. the electro-hydraulic actuator of the more intellectual material drivings of active Flat valve as claimed in claim 2, it is characterised in that: the pump
Cover (9) lower end inner wall surface is threadedly coupled with shell (3) upper end outer wall surface, pump cover (9) upper end inner wall surface and pump cover (11)
Lower end outer wall surface face contact is simultaneously bolted, the flexible sheet (10) between piston head (25) and piston (26),
And it is linked into an integrated entity by soket head cap screw with piston head (25) and piston (26).
4. the electro-hydraulic actuator of the more intellectual material drivings of active Flat valve as claimed in claim 3, it is characterised in that: the valve
Body (24) is connect with manifold (12) by hexagon socket head cap screw, and the support (15) is installed on manifold (12) by hexagon socket head cap screw
On, sealing baffle (16) is fixed on support (15) by soket head cap screw, outer wall surface and the both ends of the surface difference of cylinder barrel (17)
With the inner wall surface face contact of support (15), sliding plunger (19) the left and right end face and piston baffle (18) end face face contact.
5. the electro-hydraulic actuator of the more intellectual material drivings of active Flat valve as claimed in claim 4, it is characterised in that: the valve
The groove opened up on core (23) all on a shaft shoulder, is alternately slotted.
6. the electro-hydraulic actuator of the more intellectual material drivings of active Flat valve as claimed in claim 5, it is characterised in that: described defeated
Rod (28) upper part is cylindrical structure, and is drilled with threaded hole, and middle section is disc-shaped structure, and is drilled with cylindrical type
Hole, lower part are cylindrical structure, are drilled with threaded hole on the upper magnetic inductive block (7).
7. the electro-hydraulic actuator of the more intellectual material drivings of active Flat valve as claimed in claim 6, it is characterised in that: the line
Ring framework (5) is made of polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444966.8A CN107091256B (en) | 2017-06-12 | 2017-06-12 | A kind of electro-hydraulic actuator of the more intellectual material drivings of active Flat valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444966.8A CN107091256B (en) | 2017-06-12 | 2017-06-12 | A kind of electro-hydraulic actuator of the more intellectual material drivings of active Flat valve |
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| Publication Number | Publication Date |
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| CN107091256A CN107091256A (en) | 2017-08-25 |
| CN107091256B true CN107091256B (en) | 2019-01-29 |
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| CN201710444966.8A Expired - Fee Related CN107091256B (en) | 2017-06-12 | 2017-06-12 | A kind of electro-hydraulic actuator of the more intellectual material drivings of active Flat valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572075A (en) * | 2019-08-05 | 2019-12-13 | 包头稀土研究院 | Actuator with solenoid providing axial permanent magnetic field |
| CN110594233B (en) * | 2019-09-03 | 2021-06-29 | 浙江大学 | Hydraulic cylinder structure of hydraulic system with higher frequency response requirement and limited installation space |
| CN111490701B (en) * | 2020-05-25 | 2021-10-08 | 东华大学 | Multi-ring bias magnetostrictive driver excited by parallel stranded wire harness |
| CN111779728B (en) * | 2020-06-04 | 2022-04-19 | 南京航空航天大学 | Bidirectional speed regulating system for stacked intelligent material driven electro-hydrostatic actuator and control method thereof |
| CN111810469B (en) * | 2020-06-04 | 2022-04-19 | 南京航空航天大学 | Magnetostriction axial double-plunger pump driven electro-hydrostatic actuator and working method thereof |
| CN113638935B (en) * | 2021-07-19 | 2022-10-21 | 南京航空航天大学 | Electro-hydrostatic actuator driven by magnetostrictive axial four-plunger pump and working method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003494A (en) * | 2015-05-22 | 2015-10-28 | 南京航空航天大学 | Actuator |
| CN105822614A (en) * | 2016-04-14 | 2016-08-03 | 南京航空航天大学 | Electro-hydrostatic actuator |
| CN106224322A (en) * | 2016-08-26 | 2016-12-14 | 南京航空航天大学 | A kind of two-way adjustable speed electricity hydrostatic actuator and method of work thereof |
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| RU2335663C1 (en) * | 2007-03-19 | 2008-10-10 | Пензенская государственная технологическая академия | Direct controlmultiple-arm magnetostriction electrohydraulic amplifier |
| CN103629090B (en) * | 2013-11-18 | 2016-08-17 | 江苏大学 | A kind of magnetostriction type dual-cavity membrane type micropump |
| CN203742925U (en) * | 2013-11-18 | 2014-07-30 | 江苏大学 | Magnetostrictive rod driven micro pump |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003494A (en) * | 2015-05-22 | 2015-10-28 | 南京航空航天大学 | Actuator |
| CN105822614A (en) * | 2016-04-14 | 2016-08-03 | 南京航空航天大学 | Electro-hydrostatic actuator |
| CN106224322A (en) * | 2016-08-26 | 2016-12-14 | 南京航空航天大学 | A kind of two-way adjustable speed electricity hydrostatic actuator and method of work thereof |
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| CN107091256A (en) | 2017-08-25 |
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