CN106439466A - Embedded piezoelectric drive micro oil spraying lubrication device - Google Patents
Embedded piezoelectric drive micro oil spraying lubrication device Download PDFInfo
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- CN106439466A CN106439466A CN201611059798.2A CN201611059798A CN106439466A CN 106439466 A CN106439466 A CN 106439466A CN 201611059798 A CN201611059798 A CN 201611059798A CN 106439466 A CN106439466 A CN 106439466A
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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
- F16N25/00—Distributing equipment with or without proportioning devices
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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
- F16N27/00—Proportioning devices
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Special Spraying Apparatus (AREA)
Abstract
The invention discloses an embedded piezoelectric drive micro oil spraying lubrication device, relates to the technical field of space lubrication and piezoelectric micro spraying, in particular to the embedded piezoelectric drive micro oil spraying lubrication device, and aims to solve the problem of difficult realization of micro redundancy oil supply replenishing lubrication in a traditional space liquid lubrication system. The embedded piezoelectric drive micro oil spraying lubrication device comprises a mandrel, a front micro spraying cover, a front guide ring, a back micro spraying cover, a back guide ring, two micro spraying cavities, two piezoelectric vibrators and four metal discs; two micro spraying cavities respectively sleeve the front and back ends of the mandrel; two circular grooves are symmetrically formed in the small end surface of each micro spraying cavity in the radial direction; one metal disc is embedded in each circular groove; micro holes are formed in the centers of the metal discs; the piezoelectric vibrators are respectively arranged between the front micro spraying cover and the micro spraying cavity at the front end as well as between the back micro spraying cover and the micro spraying cavity at the back end; and cavities are formed between the front micro spraying cover and the piezoelectric vibrator at the front end as well as between the back micro spraying cover and the piezoelectric vibrator at the back end. The embedded piezoelectric drive micro oil spraying lubrication device is used for space lubrication.
Description
Technical field
The present invention relates to space lubrication and piezoelectricity micro-spray technology field are and in particular to a kind of micro spray of embedded Piezoelectric Driving
Oil lubrication device.
Background technology
For many years, the research of space lubricating area always is a focus in the world.Solid lubrication has greasy property
The advantages of stable, non-volatile and creeping phenomenon, operating temperature range width, lubricate the initial stage from space or even always be boat at this stage
One of primary lubricant mode of its device and space station.But compare with hydrodynamic lubrication, solid lubrication but has friction
Resistance is big, and heat transfer property difference is it is impossible to selfreparing etc. is difficult to the drawbacks of overcome.For high rotating speed, varying duty, heavy duty and shock loading
High speed space mechanism part bearing, hydrodynamic lubrication is a kind of effective lubricating system.
Through the development of decades, current fluid lubricant comes into synthesize hydrocarbon, ultralow pressure evaporation silicon hydrocarbon (SiHC)
Buddhist monk's immature ion lubricating oil is the fluid lubricant of new generation of representative, and it is extreme that its greasy property can cater to space substantially
The rigors of environment.But in the research field of space hydrodynamic lubrication, the repairing of fluid lubrication systems, sealing, oil storage etc.
Remain the technical barrier being difficult to break through.
Piezoelectric has the advantages that fast response time, energy consumption low and high energy metric density because of it, is all extensively transported all the time
Use driving transducing field.Piezoelectricity micro-spray technology, then be the inverse piezoelectric effect using piezoelectric ceramics, by applying to piezoelectric ceramic piece
Plus the alternating voltage of certain frequency is so as to produce radial expansion deformation.The telescopic variation of piezoelectric ceramics can drive and bond therewith
The generation flexural deformation of metal vibration film, and then cause the Volume Changes of liquid reservoir, produce acoustic pressure wave.The week of acoustic pressure wave
Phase property changes, and so that drop is finally sprayed from micro-spraying hole.By to Piezoelectric Ceramics Excitation pulse parameter (amplitude, frequency, umber of pulse
Deng) regulation and control, metered injection, to the position needing lubrication, is expected to solve spacecraft repairing lubricate this on demand can to make lubricating oil
One technical barrier.
Content of the invention
The present invention is to solve the problems, such as that micro- redundancy of existing space fluid lubrication systems is supplemented feed lubrication and is difficult to, and enters
And a kind of micro spraying lubricating device of embedded Piezoelectric Driving is proposed.
The present invention is to solve above-mentioned technical problem to adopt the technical scheme that：The present invention includes mandrel, front micro- spray is covered, leading
Stream ring, rear micro- spray lid, rear guide ring, two micro- spray chamber bodies, two piezoelectric vibrators and four metal disks, the middle part of mandrel is along axle
It is provided with hollow channel to direction, the shape of micro- spray chamber body is annular, and the rear and front end of mandrel is respectively set with a micro- spray respectively
Cavity, micro- spray chamber body cross section be shaped as taper, the small end face of two micro- spray chamber bodies is oppositely arranged, each micro- spray chamber body little
Radially it is arranged with two circular grooves respectively on end face, in each circular groove, be embedded with a metal disk, round metal respectively
The center of piece is provided with micropore, and the inner side of micro- spray chamber body large end face of front end is provided with front micro- spray lid, and front micro- spray lid passes through front first spiral shell
Female and front second nut is fixed on the front end of mandrel, is provided with front guide ring, micro- spray chamber body of rear end between front micro- spray lid and mandrel
The inner side of large end face micro- spray lid after being provided with, the rear end being fixed on mandrel by rear 3rd nut, micro- spray Gai Yuxin afterwards are covered in micro- spray afterwards
It is provided with rear guide ring, micro- spray chamber body of front micro- spray lid and front end and afterwards difference between micro- spray lid and micro- spray chamber body of rear end between axle
It is respectively provided with a piezoelectric vibrator, piezoelectric vibrator includes ring-shaped piezo ceramic piece and annular scale copper, ring-shaped piezo ceramic piece bonds
Four grooves of the notch, core are respectively laid with respectively on the outside of annular scale copper, the inner side end of front guide ring and rear guide ring
The rear and front end of axle is respectively equipped with a circular passage along cylindrical circumferential direction, and the bottom surface of circular passage is arranged with four cylinders
Hole, the insertion successively from outside to inside of the groove of the notch, circular passage, cylindrical hole and hollow channel, the piezoelectric vibrator of front micro- spray lid and front end
And rear micro- spray lid and the piezoelectric vibrator of rear end between be provided with cavity.
The invention has the beneficial effects as follows：
1st, the present invention is directed to the bearing lubrication of control-moment gyro (CMG), there is provided a kind of structure is simple and is easy to embed
The micro spraying lubricating device of Piezoelectric Driving.
2nd, present configuration is simply compact, lightweight, and the volumetric spaces occupying are little, sealing and good insulating, facilitates embedding
Enter in control-moment gyro, may apply to spacecraft supplemental lubrication mechanism manufactures and designs field.
3rd, the micro spraying lubricating device of the Piezoelectric Driving of the present invention make use of the inverse piezoelectric effect of piezoelectric ceramics, thereon under
The voltage pulse excitation of certain frequency is loaded, piezoelectric vibrator can produce flexural deformation, and then causes liquid reservoir between surface
Volume Changes, produce acoustic pressure wave simultaneously.In the presence of periodically variable acoustic pressure wave, liquid is made to spray from micro-spraying hole
Go out.By the control to driving pulse parameter (voltage magnitude, umber of pulse etc.), can on demand metered injection lubricating oil to need moisten
Sliding position.
4th, the Piezoelectric Driving of the present invention micro spraying lubricating device mandrel adopts hollow structure, can mitigate own wt and
Serve as the pipe passage for micro-spray device make-up oil.Mandrel side can external oil conservator, the lubricating oil in oil conservator is through core
On axle center-aisle, axle, the groove of the notch of cylindrical hole and guide ring flows in micro-spray device liquid reservoir, supplements because of injection in time
The lubricants capacity reducing.
5th, the micro spraying lubricating device of the Piezoelectric Driving of the present invention micro- spray outline adopts pyramidal structure, it is possible to reduce occupy
Volumetric spaces be also convenient for micro-spray device installation positioning.
6th, the micro spraying lubricating device of the Piezoelectric Driving of the present invention have that structure is simple, small volume, lightweight, structure tight
Gather, be easy to embed, sealing and the advantages of good insulating.
Brief description
Fig. 1 is the front view after the present invention is embedded in control-moment gyro, and the direction of wherein filled arrows represents oil circuit
Direction；
Fig. 2 is the overall structure diagram of the present invention；
Fig. 3 is enlarged drawing at I in Fig. 1；
Fig. 4 is the structural representation of front guide ring 3 in the present invention；
Fig. 5 is the structural representation of rear guide ring 5 in the present invention；
Fig. 6 is the structural representation of piezoelectric vibrator 7 in the present invention；
Fig. 7 is Fig. 3 structural representation operationally, and the direction of wherein hollow arrow represents piezoelectric vibrator 7 radial expansion
Direction.
Specific embodiment
Specific embodiment one：Illustrate in conjunction with Fig. 1 to Fig. 7, described in present embodiment, a kind of embedded Piezoelectric Driving is micro
Spraying lubricating device include mandrel 1, front micro- spray lid 2, front guide ring 3, rear micro- spray lid 4,5, two micro- spray chamber bodies 6 of rear guide ring,
Two piezoelectric vibrators 7 and four metal disks 8, the middle part of mandrel 1 is in axial direction provided with hollow channel 1-1, micro- spray chamber body 6
Shape is annular, and the rear and front end of mandrel 1 is respectively set with a micro- spray chamber body 6 respectively, being shaped as of micro- spray chamber body 6 cross section
Taper, the small end face of two micro- spray chamber bodies 6 is oppositely arranged, radially symmetrical respectively on the small end face of each micro- spray chamber body 6
It is provided with two circular grooves 9, be embedded with a metal disk 8 in each circular groove 9 respectively, the center of metal disk 8 is provided with micropore 10, front
The inner side of micro- spray chamber body 6 large end face at end is provided with front micro- spray lid 2, and front micro- spray lid 2 passes through front first nut 11 and front second nut
12 front ends being fixed on mandrel 1, are provided with front guide ring 3 between front micro- spray lid 2 and mandrel 1, micro- spray chamber body 6 large end face of rear end
Inner side micro- spray lid 4 after being provided with, 4 rear ends being fixed on mandrel 1 by rear 3rd nut 13 are covered in micro- spray afterwards, afterwards micro- spray lid 4 and mandrel 1
Between be provided with rear guide ring 5, micro- spray chamber body 6 of front micro- spray lid 2 and front end and afterwards between micro- spray lid 4 and micro- spray chamber body 6 of rear end
It is respectively provided with a piezoelectric vibrator 7 respectively, piezoelectric vibrator 7 includes ring-shaped piezo ceramic piece 7-1 and annular scale copper 7-2, annular pressure
Electroceramics piece 7-1 is bonded in the outside of annular scale copper 7-2, each equal respectively on the inner side end of front guide ring 3 and rear guide ring 5
It is laid with four grooves of the notch 14, the rear and front end of mandrel 1 is respectively equipped with a circular passage 1-2 along cylindrical circumferential direction, and annular is logical
The bottom surface of road 1-2 is arranged with four cylindrical hole 1-3, the groove of the notch 14, circular passage 1-2, cylindrical hole 1-3 and hollow channel 1-1
Insertion successively from outside to inside, the piezoelectric vibrator 7 of front micro- spray lid 2 and front end and afterwards micro- spray are covered and are set between 4 and the piezoelectric vibrator 7 of rear end
There is cavity 18.
Present invention utilizes the inverse piezoelectric effect of piezoelectric ceramics, lower surface applies the voltage pulse of certain frequency and swashs thereon
Encourage, piezoelectric vibrator 7 can produce flexural deformation, and then cause the Volume Changes of liquid reservoir, produce acoustic pressure wave.Become in periodicity
In the presence of the acoustic pressure wave changed, liquid is made to spray from micropore 10.By to driving pulse parameter (voltage magnitude, umber of pulse
Deng) control, can on demand metered injection to need lubrication position.
In present embodiment, micropore 10 is individually processed on metal disk 8, can be embedded and fixed by way of bonding
In corresponding circular groove 9 on micro- spray chamber body 6.A diameter of 0.1mm of micropore 10.According to actual needs, replaceable different-diameter
Micropore 10.
The piezoelectric vibrator 7 of front micro- spray lid 2 and front end and the cavity 18 that micro- spray is covered between 4 and the piezoelectric vibrator 7 of rear end afterwards can
For damping materials such as full-filling such as silicon rubber, accelerate the decay of piezoelectric vibrator 7 residual oscillation.
Specific embodiment two：Illustrate in conjunction with Fig. 1 to Fig. 2, front micro- spray lid 2 and rear micro- spray described in present embodiment cover 4
Through hole 15 is respectively equipped with large end face, driving power supply positive wire is connected in piezoelectric vibrator 7 the upper of annular piezoelectric ceramic piece 7-1
Surface, and draw from through hole 15, negative wire is connected on mandrel 1.Other compositions and connected mode and specific embodiment
One is identical.
When application, piezoelectric vibrator 7 positive wire connects the micro spraying lubricating device of Piezoelectric Driving of present embodiment
Ring-shaped piezo ceramic 7-1 upper surface, draws from through hole 15, and the signal accessing driving power supply occurs end, and negative wire can be direct
It is connected in micro- sprinkler body metal outer wall, and be linked into the earth terminal of driving power supply.
Specific embodiment three：In conjunction with Fig. 1 to Fig. 3 and Fig. 6 explanation, annular pressure in piezoelectric vibrator 7 described in present embodiment
Electroceramics piece 7-1 thickness direction polarizes.Other compositions are identical with specific embodiment one or two with connected mode.
It is so designed that ring-shaped piezo ceramic piece 7-1 by the way of thickness direction polarization, lower surface applies necessarily thereon
The voltage pulse excitation of frequency and waveform, increases the bending deformation quantity of piezoelectric vibrator 7, and then so that the Volume Changes of liquid reservoir is increased
Greatly, the acoustic pressure wave of generation increases.
Specific embodiment four：In conjunction with Fig. 1 to Fig. 3 and Fig. 6 explanation, in the piezoelectric vibrator 7 of front end described in present embodiment
The outer ledge of annular scale copper 7-2 is fixed between front micro- spray lid 2 and the convex table top of micro- spray chamber body 6, and the piezoelectricity of front end shakes
In son 7, the inside edge of annular scale copper 7-2 is fixed between front micro- spray lid 2 and the evagination table top of front guide ring 3, the pressure of rear end
In electric tachometer indicator 7, the outer ledge of annular scale copper 7-2 is micro- after being fixed on sprays between lid 4 and the convex table top of micro- spray chamber body 6, rear end
Piezoelectric vibrator 7 in annular scale copper 7-2 inside edge be fixed on after between micro- spray lid 4 and the evagination table top of rear guide ring 5.
Other compositions are identical with specific embodiment three with connected mode.
Specific embodiment five：In conjunction with Fig. 1 to Fig. 3 and Fig. 6 explanation, in the piezoelectric vibrator 7 of front end described in present embodiment
The outer ledge of annular scale copper 7-2 passes through epoxy resin or silicone adhesive on the convex table top of micro- spray chamber body 6, the pressure of front end
In electric tachometer indicator 7, the epoxy resin or silicone adhesive evagination table top in front guide ring 3 is passed through in the inside edge of annular scale copper 7-2
On, in the piezoelectric vibrator 7 of rear end, the outer ledge of annular scale copper 7-2 passes through epoxy resin or silicone adhesive in micro- spray chamber body 6
Convex table top on, in the piezoelectric vibrator 7 of rear end, epoxy resin is passed through in the inside edge of annular scale copper 7-2 or silicone adhesive exists
Afterwards on the evagination table top of guide ring 5.Other compositions are identical with specific embodiment four with connected mode.
Specific embodiment six：In conjunction with Fig. 1 to Fig. 3 and Fig. 6 explanation, in piezoelectric vibrator 7 described in present embodiment, annular is thin
The interior outer ledge of copper sheet 7-2 is elastic restraint.Other compositions are identical with specific embodiment four or five with connected mode.
It is so designed that the system stiffness that can reduce piezoelectric vibrator 7, increase the vibration displacement amplitude of piezoelectric vibrator 7 particle.
Specific embodiment seven：In conjunction with Fig. 1 to Fig. 3 and Fig. 6 explanation, in each piezoelectric vibrator 7 of present embodiment, annular is thin
Before and after copper sheet 7-2 outer ledge, both sides are respectively provided with an outer side seal apron 16 respectively, annular thin copper in each piezoelectric vibrator 7
Before and after piece 7-2 inside edge, both sides are respectively provided with an interior side seal apron 17 respectively.Other compositions and connected mode with concrete
Embodiment six is identical.
It is so designed that the sealing that can realize piezoelectric vibrator 7 both sides, so that the Volume Changes of liquid reservoir, produce acoustic pressure power
Ripple.
Specific embodiment eight：In conjunction with Fig. 1, Fig. 3 and Fig. 4 explanation, described in present embodiment, the front end of mandrel 1 is provided with the conical surface
1-4, the inner circumferential side wall of front guide ring 3 is provided with inclined-plane 3-1, inclined-plane 3-1 and conical surface 1-4 cooperation.Other compositions and connected mode
Identical with specific embodiment one, two, four, five or seven.
It is so designed that the effective positioning facilitating implementation front guide ring 3.
Specific embodiment nine：Illustrate in conjunction with Fig. 1, the small end face boss of micro- spray chamber body 6 of present embodiment front end against
Bearing 21, the front end of mandrel 1 is provided with escape 1-5, and escape 1-5 is arranged on micro- spray chamber body 6 small end face and the bearing 21 of front end
Cooperation at, be provided with rubber back-up ring 19 in escape 1-5.Other compositions are identical with specific embodiment eight with connected mode.
It is so designed that the effective sealing facilitating implementation device.
Specific embodiment ten：Illustrate in conjunction with Fig. 1, described in present embodiment, the rear and front end of mandrel 1 is along cylindrical circumferential direction
It is provided with multiple cannelure 1-6, in cannelure 1-6, be provided with sealing ring 20.Other compositions and connected mode and specific embodiment one,
2nd, four, five, seven or nine are identical.
Multiple cannelure 1-6 can be separately positioned at conical surface 1-4 in present embodiment, micro- spray chamber body 6 of rear end little
At the cooperation of end face and bearing 21 and at rear micro- spray lid 4, to realize effective sealing of whole device.
Operation principle
Present invention utilizes the inverse piezoelectric effect of piezoelectric ceramics, lower surface applies the voltage pulse of certain frequency and swashs thereon
Encourage, piezoelectric vibrator 7 can produce flexural deformation, and then cause the Volume Changes of liquid reservoir, produce acoustic pressure wave.Become in periodicity
In the presence of the acoustic pressure wave changed, liquid is made to spray from micropore 10.By to driving pulse parameter (voltage magnitude, umber of pulse
Deng) control, can on demand metered injection to need lubrication position.
Claims (10)
1. a kind of micro spraying lubricating device of embedded Piezoelectric Driving it is characterised in that：A kind of described embedded Piezoelectric Driving is micro-
Amount spraying lubricating device include mandrel (1), front micro- spray lid (2), front guide ring (3), rear micro- spray lid (4), rear guide ring (5), two
Individual micro- spray chamber body (6), two piezoelectric vibrators (7) and four metal disks (8), during the middle part of mandrel (1) is in axial direction provided with
Empty passage (1-1), the shape of micro- spray chamber body (6) is annular, and the rear and front end of mandrel (1) is respectively set with a micro- spray chamber respectively
Body (6), micro- spray chamber body (6) cross section be shaped as taper, the small end face of two micro- spray chamber bodies (6) is oppositely arranged, each micro- spray
Two circular grooves (9) are radially arranged with the small end face of cavity (6), each circular groove is embedded with one in (9) respectively respectively
Individual metal disk (8), the center of metal disk (8) is provided with micropore (10), and the inner side of micro- spray chamber body (6) large end face of front end is provided with
Front micro- spray lid (2), front micro- spray lid (2) passes through front first nut (11) and front second nut (12) is fixed on the front end of mandrel (1),
It is provided with front guide ring (3), the inner side of micro- spray chamber body (6) large end face of rear end is micro- after being provided between front micro- spray lid (2) and mandrel (1)
Spray lid (4), the rear end that (4) are fixed on mandrel (1) by rear 3rd nut (13) is covered in micro- spray afterwards, afterwards micro- spray lid (4) and mandrel (1)
Between be provided with rear guide ring (5), micro- spray chamber of micro- spray chamber body (6) with front end for front micro- spray lid (2) and rear micro- spray lid (4) and rear end
It is respectively provided with a piezoelectric vibrator (7) respectively, piezoelectric vibrator (7) includes ring-shaped piezo ceramic piece (7-1) and annular is thin between body (6)
Copper sheet (7-2), ring-shaped piezo ceramic piece (7-1) is bonded in the outside of annular scale copper (7-2), front guide ring (3) and rear water conservancy diversion
Four grooves of the notch (14) are respectively laid with the inner side end of ring (5), the rear and front end of mandrel (1) is divided along cylindrical circumferential direction respectively
It is not provided with a circular passage (1-2), the bottom surface of circular passage (1-2) is arranged with four cylindrical holes (1-3), the groove of the notch
(14), circular passage (1-2), cylindrical hole (1-3) and hollow channel (1-1) insertion successively from outside to inside, front micro- spray lid (2) with front
It is provided with cavity (18) between the piezoelectric vibrator (7) at end and rear micro- spray lid (4) and the piezoelectric vibrator (7) of rear end.
2. according to claim 1 a kind of micro spraying lubricating device of embedded Piezoelectric Driving it is characterised in that：Described front micro-
It is respectively equipped with through hole (15), driving power supply positive wire is connected to piezoelectric vibrator on the large end face of spray lid (2) and rear micro- spray lid (4)
(7) upper surface of annular piezoelectric ceramic piece (7-1) in, and draw from through hole (15), negative wire is connected on mandrel (1).
3. a kind of micro spraying lubricating device of embedded Piezoelectric Driving according to claim 1 or claim 2 it is characterised in that：Described
Annular piezoelectric ceramic piece (7-1) thickness direction polarization in piezoelectric vibrator (7).
4. according to claim 3 a kind of micro spraying lubricating device of embedded Piezoelectric Driving it is characterised in that：Described front end
Piezoelectric vibrator (7) in the outer ledge of annular scale copper (7-2) be fixed on the convex of front micro- spray lid (2) and micro- spray chamber body (6)
Between table top, in the piezoelectric vibrator (7) of front end the inside edge of annular scale copper (7-2) be fixed on front micro- spray lid (2) with leading
Between the evagination table top of stream ring (3), in the piezoelectric vibrator (7) of rear end, the outer ledge of annular scale copper (7-2) is micro- after being fixed on
Between spray lid (4) and the convex table top of micro- spray chamber body (6), the inner side edge of annular scale copper (7-2) in the piezoelectric vibrator (7) of rear end
Edge is after being fixed between micro- spray lid (4) and the evagination table top of rear guide ring (5).
5. according to claim 4 a kind of micro spraying lubricating device of embedded Piezoelectric Driving it is characterised in that：Described front end
Piezoelectric vibrator (7) in the outer ledge of annular scale copper (7-2) pass through epoxy resin or silicone adhesive in micro- spray chamber body (6)
On convex table top, in the piezoelectric vibrator (7) of front end, epoxy resin or silicone adhesive are passed through in the inside edge of annular scale copper (7-2)
On the evagination table top of front guide ring (3), in the piezoelectric vibrator (7) of rear end, the outer ledge of annular scale copper (7-2) passes through ring
Oxygen tree fat or silicone adhesive on the convex table top of micro- spray chamber body (6), annular scale copper (7-2) in the piezoelectric vibrator (7) of rear end
Inside edge pass through epoxy resin or silicone adhesive on the evagination table top of rear guide ring (5).
6. a kind of micro spraying lubricating device of embedded Piezoelectric Driving according to claim 4 or 5 it is characterised in that：Described
In piezoelectric vibrator (7), the interior outer ledge of annular scale copper (7-2) is elastic restraint.
7. according to claim 6 a kind of micro spraying lubricating device of embedded Piezoelectric Driving it is characterised in that：Each piezoelectricity
In oscillator (7), the both sides in front and back of annular scale copper (7-2) outer ledge are respectively provided with an outer side seal apron (16) respectively, each
In piezoelectric vibrator (7), the both sides in front and back of annular scale copper (7-2) inside edge are respectively provided with an interior side seal apron (17) respectively.
8. the micro spraying lubricating device of a kind of embedded Piezoelectric Driving according to claim 1,2,4,5 or 7, its feature exists
In：The front end of described mandrel (1) is provided with the conical surface (1-4), and the inner circumferential side wall of front guide ring (3) is provided with inclined-plane (3-1), inclined-plane
(3-1) coordinate with the conical surface (1-4).
9. according to claim 8 a kind of micro spraying lubricating device of embedded Piezoelectric Driving it is characterised in that：Front end micro-
The small end face boss of spray chamber body (6) is provided with escape (1-5) against bearing (21), the front end of mandrel (1), and escape (1-5) sets
Put at micro- spray chamber body (6) small end face of front end with the cooperation of bearing (21), in escape (1-5), be provided with rubber back-up ring (19).
10. the micro spraying lubricating device of a kind of embedded Piezoelectric Driving according to claim 1,2,4,5,7 or 9, its feature
It is：The rear and front end of described mandrel (1) is provided with multiple cannelures (1-6) along cylindrical circumferential direction, is provided with close in cannelure (1-6)
Seal (20).
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| CN201611059798.2A CN106439466A (en) | 2016-11-25 | 2016-11-25 | Embedded piezoelectric drive micro oil spraying lubrication device |
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| CN201611059798.2A CN106439466A (en) | 2016-11-25 | 2016-11-25 | Embedded piezoelectric drive micro oil spraying lubrication device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885120A (en) * | 2017-03-21 | 2017-06-23 | 哈尔滨工业大学 | A kind of micro injection lubricating arrangement of diaphragm seal formula Piezoelectric Driving |
| CN106908235A (en) * | 2017-03-21 | 2017-06-30 | 哈尔滨工业大学 | It is a kind of to measure the experimental provision that micro- spray lubricating arrangement lubricates the micro- amount of redundancy of oil spurts |
| CN110142163A (en) * | 2019-05-24 | 2019-08-20 | 哈尔滨工业大学 | A kind of constant pressure back pressure system applied to piezoelectric micromotor spraying mechanism |
| CN110185909A (en) * | 2019-05-28 | 2019-08-30 | 哈尔滨工业大学 | A kind of micro- redundancy lubricating structure of bearing active based on radial piezoelectric vibration actuating |
| CN110748781A (en) * | 2019-09-17 | 2020-02-04 | 上海航天控制技术研究所 | High-precision long-life piezoelectric micro-jet active oil supply device |
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| CN106885120A (en) * | 2017-03-21 | 2017-06-23 | 哈尔滨工业大学 | A kind of micro injection lubricating arrangement of diaphragm seal formula Piezoelectric Driving |
| CN106908235A (en) * | 2017-03-21 | 2017-06-30 | 哈尔滨工业大学 | It is a kind of to measure the experimental provision that micro- spray lubricating arrangement lubricates the micro- amount of redundancy of oil spurts |
| CN106885120B (en) * | 2017-03-21 | 2018-09-07 | 哈尔滨工业大学 | A kind of micro injection lubricating arrangement of diaphragm seal formula Piezoelectric Driving |
| CN110142163A (en) * | 2019-05-24 | 2019-08-20 | 哈尔滨工业大学 | A kind of constant pressure back pressure system applied to piezoelectric micromotor spraying mechanism |
| 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 |
| CN110185909A (en) * | 2019-05-28 | 2019-08-30 | 哈尔滨工业大学 | A kind of micro- redundancy lubricating structure of bearing active based on radial piezoelectric vibration actuating |
| CN110185909B (en) * | 2019-05-28 | 2020-09-11 | 哈尔滨工业大学 | Bearing active micro-redundancy lubricating mechanism based on radial piezoelectric vibration actuation |
| CN110748781A (en) * | 2019-09-17 | 2020-02-04 | 上海航天控制技术研究所 | High-precision long-life piezoelectric micro-jet active oil supply device |
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