CN106885120B - A kind of micro injection lubricating arrangement of diaphragm seal formula Piezoelectric Driving - Google Patents
A kind of micro injection lubricating arrangement of diaphragm seal formula Piezoelectric Driving Download PDFInfo
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- CN106885120B CN106885120B CN201710169952.XA CN201710169952A CN106885120B CN 106885120 B CN106885120 B CN 106885120B CN 201710169952 A CN201710169952 A CN 201710169952A CN 106885120 B CN106885120 B CN 106885120B
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- micro
- spray
- protecgulum
- fuel
- fuel injection
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/14—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2270/00—Controlling
- F16N2270/70—Supply
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fuel-Injection Apparatus (AREA)
- Special Spraying Apparatus (AREA)
Abstract
A kind of micro injection lubricating arrangement of diaphragm seal formula Piezoelectric Driving, it is related to space lubrication and piezoelectric micromotor sprays lubrication technical field.The present invention is to solve the problems, such as existing spacecraft precise part bearing mechanical failure.The present invention includes locking nut, micro- spray rear cover, fuel feeding mandrel, micro- spray protecgulum, and piezoelectric vibrator, the middle part of fuel feeding core back-end is in axial direction equipped with fuel supply chamber, the front end of fuel supply chamber is radially arranged with multiple oil supply galleries, oil supply gallery connects with fuel supply chamber, micro- spray rear cover is arranged in the rear end of micro- spray protecgulum, piezoelectric vibrator is equipped between micro- spray rear cover and micro- spray protecgulum, the outside of micro- spray protecgulum front end face is along the circumferential direction laid with multiple injectors, fuel injection chamber connects with injector, the circumferential direction inside direction of micro- spray protecgulum is laid with multiple fuel injection passages, one end of fuel injection passage is connect with fuel injection chamber, the other end of fuel injection passage is connect with oil supply gallery.The present invention is for the micro injection lubrication of Piezoelectric Driving.
Description
Technical field
The present invention relates to space lubrications and piezoelectric micromotor to spray lubrication technical field, and in particular to a kind of diaphragm seal formula piezoelectricity drive
Move micro injection lubricating arrangement.
Background technology
The mechanical failure of spacecraft internal precision parts middle (center) bearing is the major reason of the operation troubles of entire spacecraft
One of, therefore to ensure that spacecraft being capable of long-term stable work, it is necessary to first solve asking for spacecraft internal bearings mechanical failure
Topic.Badly caused lubricating oil volatilization and deterioration failure are the main reason for bearing mechanical fail to spacecraft working environment, although
Kollag is better than fluid lubricant in stability, but the use on precise part is restricted.Therefore, profit is improved
Oil life and a kind of fueller of stabilization of design are most important.
Fueller more mature at present is mainly some passive fuellers, and passive fueller is although structure is simple
It is single, but the defect unstable and uncontrollable there are fuel delivery.Up to the present, grinding in oil supply unit of lubricating oil both at home and abroad
Study carefully in terms of focusing primarily on active oil supply lubrication device.
The advantages that piezoelectric material has fast response time, capacity usage ratio high, and energy density is high, and stability is strong, always by
It is widely applied to Piezoelectric Driving field.And the micro injection lubrication technology of piezoelectricity, it is to utilize inverse piezoelectric effect, by piezoelectric material
The two poles of the earth loading cycle sexual intercourse changed electric field, while a certain boundary of fixed piezoelectric material indirectly, so that piezoelectric material generates
Periodic reciprocal transformation vibration.The vibration that piezoelectric material generates can generate pressure wave in solid-liquid interface and be transmitted to liquid
In.Pressure wave can generate the flow direction of certain drive force liquid in a liquid, pressure wave be transmitted to nozzle from
And liquid is driven to be ejected from nozzle.Therefore the micro injection lubricating arrangement of Piezoelectric Driving is by controlling shaking for piezoelectric material
Move to control the injection of injection liquid, therefore in injection amount of droplets, spray droplet velocities etc. all with height can
The property controlled, in conjunction with high, the small advantage of piezoelectric material high response speed and capacity usage ratio, being one kind for synthesis has greatly
The active oil supply lubrication device of researching value.And the fuel feeding effect of existing active oil supply lubrication device is not very ideal.
Invention content
The present invention proposes that a kind of film is close to solve the problems, such as existing spacecraft precise part bearing mechanical failure
The micro injection lubricating arrangement of envelope formula Piezoelectric Driving.
The present invention adopts the technical scheme that solve above-mentioned technical problem：
A kind of micro injection lubricating arrangement of diaphragm seal formula Piezoelectric Driving include locking nut, micro- spray rear cover, fuel feeding mandrel,
The middle part of micro- spray protecgulum and piezoelectric vibrator, fuel feeding core back-end is in axial direction equipped with fuel supply chamber, and the front end of fuel supply chamber is radially
Direction is arranged with multiple oil supply galleries, and oil supply gallery connects with fuel supply chamber, and micro- spray rear cover and micro- spray protecgulum are sleeved on fuel feeding
The outside of mandrel, micro- spray protecgulum and fuel feeding mandrel are affixed, and micro- spray rear cover is arranged in the rear end of micro- spray protecgulum, the rear end of micro- spray rear cover
Equipped with locking nut, locking nut spinning is equipped with piezoelectric vibrator, micro- spray on fuel feeding mandrel between micro- spray rear cover and micro- spray protecgulum
The front end face of rear cover is along the circumferential direction equipped with annular groove, and the rear end face of micro- spray protecgulum is along the circumferential direction equipped with fuel injection chamber, annular
Groove and fuel injection chamber are oppositely arranged, and piezoelectric vibrator includes piezoelectric ceramic piece, elastic film and copper sheet, elastic film, copper sheet and pressure
Electroceramics piece is affixed successively from front to back, and piezoelectric ceramic piece is arranged in annular groove, and the outside of micro- spray protecgulum front end face is along circle
Circumferential direction is laid with multiple injectors, and fuel injection chamber connects with injector, and the circumferential direction inside direction of micro- spray protecgulum is laid
There are multiple fuel injection passages, one end of fuel injection passage to be connect with fuel injection chamber, the other end of fuel injection passage is connect with oil supply gallery.
The advantageous effect that the present invention includes compared with prior art is：
1, the piezoelectric vibrator of conventional piezoelectric micro-spray device of the invention unlike conventional piezoelectric micro-spray device is by annulus
The inner ring and outer ring boundary of the piezoelectric vibrator of shape is fixed, and allows the free vibration of inner ring and outer ring middle section.The present invention is only solid
The inner ring boundary of level pressure electric tachometer indicator, and allow outer perimeter section free vibration, in same drive voltage, piezoelectricity can be increased and shaken
The overall amplitude of son improves capacity usage ratio to reinforce spraying the injection intensity of drop.
2, oil-feed port is placed on the side of spout by the present invention, and oil-feed port is placed on pressure by opposite conventional piezoelectric micro-spray device
The bottom of electric micro-spray device, the distance that can reduce piezoelectric vibrator to spout increase to reduce pressure-wave propagation distance
The pressure intensity of wave of spout to increase injection intensity improves capacity usage ratio.
3, for piezoelectric vibrator of the present invention in vibration processes, elastic film can generate certain depressed deformation to reduce piezoelectricity
Unnecessary fluid damping during oscillator vibration can effectively increase the vibration velocity and intensity of piezoelectric vibrator.
4, the present invention completely cuts off contact of the liquid with piezoelectric ceramic piece using elastic film, and opposite segments piezoelectric vibrator immerses
The piezoelectricity micro-spray device of formula, the present invention can adapt to conductive and nonconductive lubricating oil, improve the scope of application of device simultaneously.
5, elastic film of the present invention is while completely cutting off lubricating oil and piezoelectric ceramic piece contacts, due to the top of elastic film
Boundary is compressed by micro- spray rear cover and micro- spray protecgulum outer ring, can be played the role of sealing, can be effectively reduced additional seal device, letter
Structure is changed.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is when present invention connection driving power, state when piezoelectric vibrator is recessed；
Fig. 4 is the front view of the invention when replacing the shaft shoulder of 4 multi-diameter shaft of fuel feeding mandrel with bearing 9；
Fig. 5 is the close-up schematic view of micro- spray rear cover 2 and micro- spray protecgulum 5 when the depth of fuel injection chamber 5-1 increases；
Fig. 6 is the front view of fuel feeding mandrel 4 in the present invention；
Fig. 7 is the sectional view of Fig. 6；
Fig. 8 is the vertical view of Fig. 6；
Fig. 9 is the sectional view of micro- spray rear cover 2 in the present invention；
Figure 10 is the sectional view of micro- spray rear cover 5 in the present invention.
Specific implementation mode
Specific implementation mode one：Illustrate present embodiment in conjunction with Fig. 1 to Figure 10, a kind of diaphragm seal described in present embodiment
The micro injection lubricating arrangement of formula Piezoelectric Driving includes locking nut 1, micro- spray rear cover 2, fuel feeding mandrel 4, micro- spray protecgulum 5 and piezoelectricity
The middle part of oscillator, 4 rear end of fuel feeding mandrel is in axial direction equipped with fuel supply chamber 4-1, and the front end of fuel supply chamber 4-1 is radially symmetrical
Equipped with multiple oil supply gallery 4-2, oil supply gallery 4-2 connects with fuel supply chamber 4-1, and micro- spray rear cover 2 and micro- spray protecgulum 5 are sleeved on confession
The outside of wick axis 4, micro- spray protecgulum 5 is affixed with fuel feeding mandrel 4, and micro- spray rear cover 2 is arranged in the rear end of micro- spray protecgulum 5, after micro- spray
The rear end of lid 2 is equipped with locking nut 1, and 1 spinning of locking nut is set on fuel feeding mandrel 4 between micro- spray rear cover 2 and micro- spray protecgulum 5
There are piezoelectric vibrator, the front end face of micro- spray rear cover 2 to be along the circumferential direction equipped with annular groove 2-1, the rear end face of micro- spray protecgulum 5 is circumferentially
Direction is oppositely arranged equipped with fuel injection chamber 5-1, annular groove 2-1 and fuel injection chamber 5-1, and piezoelectric vibrator includes piezoelectric ceramic piece 3, elasticity
Film 7 and copper sheet 8, elastic film 7, copper sheet 8 and piezoelectric ceramic piece 3 are affixed successively from front to back, and piezoelectric ceramic piece 3 is arranged in ring
In connected in star 2-1, the outside of micro- spray 5 front end face of protecgulum is along the circumferential direction laid with multiple injector 5-2, fuel injection chamber 5-1 with
Injector 5-2 connects, and the circumferential direction inside direction of micro- spray protecgulum 5 is laid with multiple fuel injection passage 5-3, fuel injection passage 5-3
One end connect with fuel injection chamber 5-1, the other end of fuel injection passage 5-3 is connect with oil supply gallery 4-2.
The shape of piezoelectric ceramic piece 3, copper sheet 8 and elastic film 7 is annular, piezoelectric ceramic piece 3, copper in present embodiment
Piece 8 and elastic film 7 collectively constitute piezoelectric vibrator, and piezoelectric vibrator is fixed between micro- spray rear cover 2 and micro- spray protecgulum 5, passes through lock
1 locking positioning of tight nut.A part of the elastic film 7 as entire piezoelectric vibrator, enables piezoelectricity micro-spray device to adapt to extensively
Various conductive or nonconducting liquid, and can effective protection piezoelectric ceramic piece 3 not by liquid corrosion, while reducing to piezoelectricity
The rigid constraint of piezoelectric vibrator.In the case of identical driving voltage, piezoelectric vibrator can have stronger oscillation intensity.
Elastic film 7 can play sealing function in present embodiment, under the extruding of micro- spray rear cover 2 and fuel injection chamber 5, bullet
The outside of property film 7 can be as the sealing structure of piezoelectricity micro-spray device outer ring.
In present embodiment by the way of direction finding fuel feeding, the lubricating oil inlet (i.e. fuel injection passage 5-3) of fuel injection chamber 5-1 and
For spout (i.e. injector 5-2) in the same direction, which can effectively shorten spout to the distance of piezoelectric vibrator, help to add
Strong injection intensity.
It is used as the limit of an axial direction in present embodiment by fuel feeding mandrel 4, simplifies total.
The depth of fuel injection chamber 5-1 can be increased in present embodiment, accomplish almost to flush with oil supply gallery 4-2 so that spray
Hydraulic fluid port 5-2 enhances jeting effect closer to bearing.
Specific implementation mode two：Illustrate present embodiment in conjunction with Fig. 1 to Fig. 5, elastic film 7 is affixed described in present embodiment
On the front end face of copper sheet 8, piezoelectric ceramic piece 3 is fixed in the middle part of 8 rear end face of copper sheet, after the inside of copper sheet 8 is fixed on micro- spray
Inside between lid 2 and micro- spray protecgulum 5, the outside of copper sheet 8 are arranged in annular groove 2-1, and the outside of elastic film 7 is fixed on
Outside between micro- spray rear cover 2 and micro- spray protecgulum 5, the inside of elastic film 7 are arranged in fuel injection chamber 5-1.Other compositions and company
It is same as the specific embodiment one to connect mode.
Elastic film 7 is fixed on 8 front end face of copper sheet in present embodiment, and the internal diameter of copper sheet 8 is less than the interior of elastic film 7
Diameter, the outer diameter of copper sheet 8 are less than the outer diameter of elastic film 7.
Elastic film 7 also can be directly fixed on to the outside of 8 front end face of copper sheet in present embodiment, i.e., it is outer with copper sheet 7
Circle is fixed.
Specific implementation mode three：Embodiment is described with reference to Fig. 2, the rear end face of micro- spray rear cover 2 described in present embodiment
It is equipped with through-hole 2-2, driving power positive wire is connect with piezoelectric ceramic piece 3, and is drawn from through-hole 2-2, and driving power is negative
Pole lead is connect with micro- spray rear cover 2.Other compositions and connection type are the same as one or two specific embodiments.
Specific implementation mode four：Illustrate present embodiment in conjunction with Fig. 1 to Fig. 4, before micro- spray protecgulum 5 described in present embodiment
End face is ladder-like, and the middle part of micro- spray 5 front end face of protecgulum is equipped with protrusion 5-4, and fuel feeding mandrel 4 is multi-diameter shaft, the front end of raised 5-4
Face and the rear end face of the shaft shoulder of fuel feeding mandrel 4 coordinate.Other compositions and connection type are the same as the specific implementation mode 3.
By the setting of the multi-diameter shaft of fuel feeding mandrel 4 in present embodiment, the axially position of micro- spray protecgulum 5 is realized.
Also bearing 9 can be used to replace the shaft shoulder of 4 multi-diameter shaft of fuel feeding mandrel in present embodiment, by the raised 5-4 of micro- spray protecgulum 5
Directly coordinate with the inner ring end face of bearing 9, the axially position as micro- spray protecgulum 5.
Nozzle diaphragm would generally be placed in the front end of injector 5-2 in present embodiment, nozzle diaphragm is used for realizing change
The purpose of injector 5-2 sizes, the ladder-like setting of micro- spray protecgulum 5 and fuel feeding mandrel 4, can be easy to implement determining for nozzle diaphragm
Position, while facilitating the replacement of nozzle diaphragm.
Specific implementation mode five：Illustrate present embodiment in conjunction with Fig. 1 to Fig. 5, elastic film 7 passes through described in present embodiment
Conducting resinl and copper sheet 8 are affixed.Other compositions and connection type are identical as specific implementation mode four.
So design ensures the electric conductivity of piezoelectric vibrator entirety.
Specific implementation mode six：Embodiment is described with reference to Fig. 2, circumferentially square on wick axis 4 described in present embodiment
To setting there are two seal groove 4-3, seal groove 4-3 is arranged to be set in the front and rear sides of oil supply gallery 4-2, seal groove 4-1
There is O-ring 6.Other compositions and connection type are identical as specific implementation mode one, two, four or five.
In order to facilitate the installation of, micro- spray rear cover 2, fuel injection chamber 5 and fuel feeding mandrel 4 are all clearance fits, oil leak in order to prevent,
The front and rear sides of oil supply gallery 4-2 are both provided with O-ring.
Specific implementation mode seven：Illustrate present embodiment in conjunction with Fig. 2 to Fig. 5,3 edge of piezoelectric ceramic piece described in present embodiment
Thickness direction polarizes.Other compositions and connection type are identical as specific implementation mode six.
3 through-thickness of piezoelectric ceramic piece polarizes, and when encouraging piezoelectric ceramic piece 3 using one class resonant frequency, piezoelectricity shakes
Son can vibrate, at this time elastic film 7 part connected with the copper sheet 8 in piezoelectric vibrator can because the reason of internal liquid pressure at
Recess stretches, and elastic film 7 can regard the pressure relief in vibration processes as, this helps to reduce piezoelectric vibrator in vibration processes
In damping, the vibration velocity of piezoelectric vibrator and the intensity of vibration can be promoted.
Specific implementation mode eight：Illustrate present embodiment in conjunction with Fig. 2 to Fig. 5, piezoelectric ceramic piece 3 described in present embodiment
Inner ring is higher than the center of the one end fuel injection passage 5-3 port.Other compositions and connection type are identical as specific implementation mode seven.
So design make piezoelectric vibrator vibrate most by force partially away from lubricating oil inlet (i.e. fuel injection passage 5-3), make spout
Pressure does not receive the influence of lubricating oil inlet at place (i.e. injector 5-2).
Specific implementation mode nine：Illustrate present embodiment in conjunction with Fig. 2 and Fig. 6 to Fig. 8, fuel supply chamber 4- described in present embodiment
1 rear end is along the circumferential direction equipped with screw thread.Other compositions and connection type and specific implementation mode one, two, four, five, seven or eight
It is identical.
Fuel feeding mandrel 4 is used as oil-bearing structure in present embodiment, is so designed to facilitate the extraneous additional oil discharging device of connection.
Specific implementation mode ten：Illustrate present embodiment in conjunction with Fig. 2 to Fig. 5 and Figure 10, oil spout described in present embodiment is logical
The shape of road 5-3 is " L " shape, and fuel injection passage 5-3 includes horizontal ends and vertical end, the horizontal ends and fuel injection chamber of fuel injection passage 5-3
5-1 is connected to, and the vertical end of fuel injection passage 5-3 is connected to oil supply gallery 4-2.Other compositions and connection type and specific implementation mode
Nine is identical.
So design is easy to implement the connection of fuel injection chamber 5-1 and oil supply gallery 4-2.
The quantity of multiple oil supply gallery 4-2 is two in present embodiment, and the quantity of multiple fuel injection passage 5-3 is four,
The quantity of multiple injector 5-2 is four.
Operation principle
Piezoelectric vibrator is fixed between micro- spray rear cover 2 and micro- spray protecgulum 5, passes through 1 locking positioning of locking nut.When using one
When rank resonant frequency encourages piezoelectric ceramic piece 3, piezoelectric vibrator can vibrate, at this time the elasticity connected with the copper sheet 8 in piezoelectric vibrator
7 part of film can be because stretch the reason of internal liquid pressure at recess, one as entire piezoelectric vibrator of elastic film 7
Point, elastic film 7 can regard the pressure relief in vibration processes as, this helps to reduce resistance of the piezoelectric vibrator in vibration processes
Buddhist nun can promote the vibration velocity of piezoelectric vibrator and the intensity of vibration, and piezoelectricity micro-spray device is enable to adapt to various conductions extensively
Or nonconducting liquid, and can effective protection piezoelectric ceramic piece 3 not by liquid corrosion, while reducing to piezoelectricity piezoelectric vibrator
Rigid constraint.In the case of identical driving voltage, piezoelectric vibrator can have stronger oscillation intensity.
Claims (9)
1. a kind of micro injection lubricating arrangement of diaphragm seal formula Piezoelectric Driving, it is characterised in that：A kind of diaphragm seal formula pressure
The micro injection lubricating arrangement of electric drive include locking nut (1), micro- spray rear cover (2), fuel feeding mandrel (4), micro- spray protecgulum (5) and
The middle part of piezoelectric vibrator, fuel feeding mandrel (4) rear end is in axial direction equipped with fuel supply chamber (4-1), and the front end of fuel supply chamber (4-1) is along diameter
Multiple oil supply galleries (4-2) are arranged with to direction, oil supply gallery (4-2) connects with fuel supply chamber (4-1), micro- spray rear cover (2)
The outside of fuel feeding mandrel (4) is sleeved on micro- spray protecgulum (5), micro- spray protecgulum (5) and fuel feeding mandrel (4) are affixed, micro- spray rear cover (2)
It is arranged in the rear end of micro- spray protecgulum (5), the rear end of micro- spray rear cover (2) is equipped with locking nut (1), and locking nut (1) spinning is supplying
On wick axis (4), piezoelectric vibrator is equipped between micro- spray rear cover (2) and micro- spray protecgulum (5), the front end face of micro- spray rear cover (2) is along circle
Circumferential direction is equipped with annular groove (2-1), and the rear end face of micro- spray protecgulum (5) is along the circumferential direction equipped with fuel injection chamber (5-1), annular groove
(2-1) and fuel injection chamber (5-1) are oppositely arranged, and piezoelectric vibrator includes piezoelectric ceramic piece (3), elastic film (7) and copper sheet (8), bullet
Property film (7), copper sheet (8) and piezoelectric ceramic piece (3) it is affixed successively from front to back, piezoelectric ceramic piece (3) be arranged in annular groove
In (2-1), the outside of micro- spray protecgulum (5) front end face is along the circumferential direction laid with multiple injectors (5-2), fuel injection chamber (5-1)
It connects with injector (5-2), the circumferential direction inside direction of micro- spray protecgulum (5) is laid with multiple fuel injection passages (5-3), oil spout
The one end in channel (5-3) is connect with fuel injection chamber (5-1), and the other end of fuel injection passage (5-3) is connect with oil supply gallery (4-2)；Bullet
Property film (7) is fixed on the front end face of copper sheet (8), and piezoelectric ceramic piece (3) is fixed in the middle part of copper sheet (8) rear end face, copper sheet
(8) inside between micro- spray rear cover (2) and micro- spray protecgulum (5) is fixed on the inside of, the outside of copper sheet (8) is arranged in annular groove
In (2-1), the outside between micro- spray rear cover (2) and micro- spray protecgulum (5), elastic film (7) are fixed on the outside of elastic film (7)
Inside setting in the fuel injection chamber (5-1).
2. the micro injection lubricating arrangement of a kind of diaphragm seal formula Piezoelectric Driving according to claim 1, it is characterised in that：It is described
The rear end face of micro- spray rear cover (2) is equipped with through-hole (2-2), and driving power positive wire connect with piezoelectric ceramic piece (3), and from leading to
It is drawn in hole (2-2), driving power negative wire is connect with micro- spray rear cover (2).
3. the micro injection lubricating arrangement of a kind of diaphragm seal formula Piezoelectric Driving according to claim 2, it is characterised in that：It is described
The front end face of micro- spray protecgulum (5) is ladder-like, and the middle part of micro- spray protecgulum (5) front end face is equipped with raised (5-4), fuel feeding mandrel (4)
For multi-diameter shaft, the front end face of raised (5-4) and the rear end face of the shaft shoulder of fuel feeding mandrel (4) coordinate.
4. the micro injection lubricating arrangement of a kind of diaphragm seal formula Piezoelectric Driving according to claim 3, it is characterised in that：It is described
Elastic film (7) is affixed by conducting resinl and copper sheet (8).
5. according to a kind of micro injection lubricating arrangement of diaphragm seal formula Piezoelectric Driving of claim 1,3 or 4, feature exists
In：Two seal grooves (4-3) are along the circumferential direction equipped on the fuel feeding mandrel (4), seal groove (4-3) setting is logical in fuel feeding
The front and rear sides in road (4-2), seal groove (4-1) is interior to be equipped with O-ring (6).
6. the micro injection lubricating arrangement of a kind of diaphragm seal formula Piezoelectric Driving according to claim 5, it is characterised in that：It is described
Piezoelectric ceramic piece (3) through-thickness polarizes.
7. the micro injection lubricating arrangement of a kind of diaphragm seal formula Piezoelectric Driving according to claim 6, it is characterised in that：It is described
The inner ring of piezoelectric ceramic piece (3) is higher than the center of one end port fuel injection passage (5-3).
8. according to a kind of micro injection lubricating arrangement of diaphragm seal formula Piezoelectric Driving of claim 1,3,4,6 or 7, feature
It is：The rear end of the fuel supply chamber (4-1) is along the circumferential direction equipped with screw thread.
9. the micro injection lubricating arrangement of a kind of diaphragm seal formula Piezoelectric Driving according to claim 8, it is characterised in that：It is described
The shape of fuel injection passage (5-3) is " L " shape, and fuel injection passage (5-3) includes horizontal ends and vertical end, the water of fuel injection passage (5-3)
Flush end is connected to fuel injection chamber (5-1), and the vertical end of fuel injection passage (5-3) is connected to oil supply gallery (4-2).
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| CN201710169952.XA CN106885120B (en) | 2017-03-21 | 2017-03-21 | A kind of micro injection lubricating arrangement of diaphragm seal formula Piezoelectric Driving |
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| CN201710169952.XA CN106885120B (en) | 2017-03-21 | 2017-03-21 | A kind of micro injection lubricating arrangement of diaphragm seal formula Piezoelectric Driving |
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| CN106885120B true CN106885120B (en) | 2018-09-07 |
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| CN110142163B (en) * | 2019-05-24 | 2020-04-24 | 哈尔滨工业大学 | Constant-pressure backpressure system applied to piezoelectric micro-spraying mechanism |
| CN110268948B (en) * | 2019-06-19 | 2023-11-10 | 浙江师范大学 | Piezoelectric micro-spraying device and seedling culture equipment using same |
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| JP2002213687A (en) * | 2001-01-18 | 2002-07-31 | Okuma Corp | Bearing lubricating device |
| JP2007198166A (en) * | 2006-01-24 | 2007-08-09 | Nsk Ltd | Liquid material supply device |
| JP5082049B2 (en) * | 2006-09-26 | 2012-11-28 | セイコーエプソン株式会社 | Fluid ejecting apparatus and surgical tool |
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|---|---|---|---|---|
| US6362844B1 (en) * | 1997-10-23 | 2002-03-26 | Acer Peripherals, Inc. | Structure of a piezoelectric ink-jet printer head |
| CN101157544A (en) * | 2006-09-15 | 2008-04-09 | 富士胶片株式会社 | Perovskite oxide, process for producing the perovskite oxide, piezoelectric body, piezoelectric device, and liquid discharge device |
| CN103195694A (en) * | 2013-04-14 | 2013-07-10 | 苏州科技学院 | Valveless piezoelectric micro pump |
| CN106402620A (en) * | 2016-11-25 | 2017-02-15 | 哈尔滨工业大学 | Patting-type piezoelectric driving micro-jet lubrication device |
| CN106439466A (en) * | 2016-11-25 | 2017-02-22 | 哈尔滨工业大学 | Embedded piezoelectric drive micro oil spraying lubrication device |
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