CN108199607A - Cantilevered actuator and start method is laminated in high-power piezoelectric bimorph - Google Patents
Cantilevered actuator and start method is laminated in high-power piezoelectric bimorph Download PDFInfo
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- CN108199607A CN108199607A CN201810058817.2A CN201810058817A CN108199607A CN 108199607 A CN108199607 A CN 108199607A CN 201810058817 A CN201810058817 A CN 201810058817A CN 108199607 A CN108199607 A CN 108199607A
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- 238000006073 displacement reaction Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 238000005452 bending Methods 0.000 claims description 10
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- 230000008569 process Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 2
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- 239000010410 layer Substances 0.000 abstract description 55
- 239000011229 interlayer Substances 0.000 abstract description 4
- 239000011664 nicotinic acid Substances 0.000 abstract description 3
- 241000251468 Actinopterygii Species 0.000 abstract description 2
- 241000446313 Lamella Species 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/001—Driving devices, e.g. vibrators
- H02N2/0015—Driving devices, e.g. vibrators using only bending modes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
- H02N2/12—Constructional details
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
- H02N2/14—Drive circuits; Control arrangements or methods
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Abstract
The invention discloses a kind of high-power piezoelectric bimorphs to be laminated cantilevered actuator and start method.It includes multi-disc piezoelectric bimorph, interlayer connection component, axial precompression component；The certain lengthwise locations of piezoelectric bimorph are selected as lateral start relative position, each layer piezoelectric bimorph is fixed in position and an axis, two bearings on the set of the both ends of each axis, and pass through a connecting rod with holes and bearing of each layer in actuator side is mutually connected, so that the transverse movement of each layer piezoelectric bimorph is associated with；Axial precompression component is recycled to apply axial precompression to each layer piezoelectric bimorph to increase actuating travel, axial precompression component includes miniature bearing, prefabricated card slot bearing holder (housing, cover), elastic webbing.The present invention can improve the power output and actuating travel of piezoelectric bimorph actuator in small space simultaneously, so as to increase output power；It can be as the deflection of micro air vehicle aerofoil or the actuator of bionic machine fish tail swing.
Description
Technical field
The present invention relates to high-power piezoelectric actuating technical fields.Cantilever is laminated more particularly to a kind of high-power piezoelectric bimorph
Formula actuator and start method.
Background technology
Since deformable intelligence structure can make the novel vehicle such as micro air vehicle, bionic machine fish adapt to different fortune
Row working condition requirement, maneuvering performance improve, resistance reduces, voyage increase, thus by machinery and the extensive concern in delivery field.It passes
The bandwidth of operation of system electric steering engine is relatively narrow, and needs the equipment such as subsidiary retarder, thus is difficult to meet these novel small fortune
Carry requirement of the device to malformation.Piezoelectric bimorph actuator has larger bandwidth of operation and the speed of response, and structure is tight
It gathers, can directly be deformed, as high frequency actuator, sensor, energy converter in machinery field extensive utilization, however it is smaller
Power output and output displacement limit application of the piezoelectric bimorph actuator in high-power start occasion.
Invention content
In order to improve existing piezoelectric bimorph actuator power output and start displacement, the purpose of the present invention is to provide one kind
Increase the method for piezoelectric bimorph actuator output power in small space.
In order to achieve the above object, the present invention selects the certain lengthwise locations of piezoelectric bimorph as lateral start association
Position fixes each layer piezoelectric bimorph in position and an axis, two bearings on the set of the both ends of each axis, and passes through a band
Bearing of each layer in actuator side is mutually connected by hole connecting rod, so that the transverse movement of each layer piezoelectric bimorph is closed
Connection；Axial precompression component is recycled to apply axial precompression to each layer piezoelectric bimorph to increase actuating travel.
The present invention specifically adopts the following technical scheme that：
Cantilevered actuator, the pressure being both secured to including three layers of end on fixed pedestal is laminated in high-power piezoelectric bimorph
Electrical twining piece cantilever beam actuator is followed successively by upper strata piezoelectric bimorph cantilever beam actuator, middle level piezoelectric bimorph from top to bottom
Cantilever beam actuator and lower floor's piezoelectric bimorph cantilever beam actuator, upper strata piezoelectric bimorph cantilever beam actuator and lower floor's piezoelectricity
Bicrystal junction actuator face mirror symmetry, middle level piezoelectric bimorph centered on the piezoelectric bimorph cantilever beam actuator of middle level
The length of cantilever beam actuator is more than the length of other two layers of piezoelectric bimorph cantilever beam actuator；Upper strata piezoelectric bimorph cantilever
After beam actuator and lower floor's piezoelectric bimorph cantilever beam actuator respectively pass through first axostylus axostyle, free end respectively with one
Second axostylus axostyle is connected, and middle level piezoelectric bimorph cantilever beam actuator sequentially passes through another the first axostylus axostyle, another the second axostylus axostyle
After third axostylus axostyle, output terminal of the free end as displacement；The both side ends of all first axostylus axostyles and the second axostylus axostyle are equipped with
Clutch shaft bearing, and three the first axostylus axostyles are located on the same plane vertical with three layers of piezoelectric bimorph cantilever beam actuator, and three
Three clutch shaft bearings of each side of the first axostylus axostyle of item are respectively fixed on a connecting rod with holes, and three the second axostylus axostyles also are located at across upper
On the same plane of layer piezoelectric bimorph cantilever beam actuator free end and lower floor's piezoelectric bimorph cantilever beam actuator free end,
And three clutch shaft bearings of three the second axostylus axostyles per side are also fixed on a connecting rod with holes, hang three layers of piezoelectric bimorph
The bending motion of arm beam actuator forms association by 4 connecting rods with holes；In upper strata piezoelectric bimorph cantilever beam actuator under
Layer piezoelectric bimorph cantilever beam actuator is cased with the outside the clutch shaft bearing of both sides again respectively on the second axostylus axostyle of free end
Two bearings are also equipped with second bearing in third axostylus axostyle both sides；It is cased with prefabricated card slot bearing holder (housing, cover) respectively in each second bearing；
It is circumferential on each prefabricated card slot bearing holder (housing, cover) outer wall to offer card slot in advance, it is cased with an end on every clamp bar slot and is fixed on fixation
Elastic webbing on pedestal, every layer of piezoelectric bimorph cantilever beam apply axial precompression by the elastic webbing of both sides.
Preferably, the third axostylus axostyle is longer than the second axostylus axostyle, connected in the piezoelectric bimorph cantilever beam actuator of middle level
Two elastic webbings and other four elastic webbings not in the same plane, to reduce the interference of elastic interband.
Preferably, the clutch shaft bearing and second bearing is sheathed on interference fit type outside axostylus axostyle, to carry
High connective stability.
Preferably, the prefabricated card slot bearing holder (housing, cover) is circumferentially sheathed on bearing with interference fit type, to improve
Connective stability.
Preferably, under three layers of piezoelectric bimorph cantilever beam actuator not working condition, the elastic force side of every elastic webbing
To the plane for being parallel to piezoelectric bimorph cantilever beam actuator, active force is made to be parallel to axial direction.
Preferably, the axostylus axostyle passed through by the piezoelectric bimorph cantilever beam actuator and piezoelectric bimorph cantilever beam start
It is connected state between device, so as to the relative position of fixed multilayer actuator transverse movement, to improve the reliable of coupled movements
Property.
Preferably, the piezoelectric bimorph cantilever beam actuator is pasted on middle layer by middle layer and respectively
The upper layer of piezo-electric material on upper and lower surface and lower floor's piezoelectric material composition.
Further, upper strata piezoelectric bimorph cantilever beam actuator, middle level piezoelectric bimorph cantilever beam actuator and lower floor
The upper layer of piezo-electric material of piezoelectric bimorph cantilever beam actuator is all connected with the voltage of same polarity, and lower floor's piezoelectric material is all connected with
Another voltage of opposite polarity.
It is a kind of using above-mentioned high-power piezoelectric bimorph stacking cantilevered actuator another object of the present invention is to provide
Start method, it is specific as follows：Respectively to upper strata piezoelectric bimorph cantilever beam actuator, middle level piezoelectric bimorph cantilever beam start
The upper layer of piezo-electric material of device and lower floor's piezoelectric bimorph cantilever beam actuator is passed through a kind of polar voltages, respectively to lower floor's piezoresistive material
Material is passed through another polar voltages, and three layers of piezoelectric bimorph actuator is made to bend together to same direction, utilize output terminal
Output displacement；When output terminal is only used as power by external load and by middle level piezoelectric bimorph cantilever beam actuator and is unable to reach
It is required that during inflection point, upper strata piezoelectric bimorph cantilever beam actuator and lower floor's piezoelectric bimorph cantilever beam actuator pass through with holes
Connecting rod, which will be used as power, is transferred to middle level piezoelectric bimorph cantilever beam actuator, and increase output terminal is used as power and reaches start displacement
It is required that inflection point；In three layers of piezoelectric bimorph cantilever beam actuator bending process, by binding round into prefabricated card slot bearing holder (housing, cover) card
Elastic webbing in slot respectively applies three layers of piezoelectric bimorph cantilever beam actuator axial precompression, is subtracted using the axial direction precompression
The equivalent bending stiffness of girder, so as to increase the end output displacement of three layers of piezoelectric bimorph cantilever beam actuator.
Preferably, the single order that the axial precompression that elastic webbing applies is less than piezoelectric bimorph cantilever beam actuator is axially bent
Qu Li.
Compared with prior art, the present invention it has the following advantages：
The transverse movement of multi-layer piezoelectric Bicrystal junction is associated with by the present invention by interlayer connection component, so as to significantly improve
Power output；By applying axial precompression respectively to three layers of piezoelectric bimorph so that the output displacement of actuator increases several times, position
It is related with the size of axial precompression to move increase multiple；Since power output and output displacement are all improved, so as to substantially increase
The output work of piezoelectric bimorph actuator in small space.The piezoelectric bimorph cantilever beam actuator can directly drive miniature
Vehicle rudder or the deflection of bionic machine fin, do not need to add a set of deceleration mechanism as traditional motor, so as to increase
The payload of miniature vehicle and inner space, additionally it is possible to improve manipulation bandwidth, reduce resistance, increase voyage.
Description of the drawings
Fig. 1 is that the schematic diagram of cantilevered actuator is laminated in the high-power piezoelectric bimorph of the present invention；
Fig. 2 is that the side view of cantilevered actuator and interlayer connection component A-A sectional views is laminated in high-power piezoelectric bimorph
(only showing half, the other half is in mirror symmetry), interlayer connection and axial precompression component B-B sectional views (only show half, separately
Half is in mirror symmetry), the axial precompression component C-C sectional views of middle level piezoelectric bimorph cantilever beam actuator；
Fig. 3 is the illustrative view that cantilevered actuator is laminated in high-power piezoelectric bimorph；
In figure, fixed pedestal 1, upper strata piezoelectric bimorph cantilever beam actuator 2, middle level piezoelectric bimorph cantilever beam actuator
3rd, lower floor's piezoelectric bimorph cantilever beam actuator 4, elastic webbing 5, second bearing 6, prefabricated card slot bearing holder (housing, cover) 7, third axostylus axostyle 8, defeated
Outlet 9, connecting rod with holes 10, clutch shaft bearing 11, the first axostylus axostyle 12, the second axostylus axostyle 13.
Specific embodiment
The present invention is a kind of high-power piezoelectric bimorph cantilever beam actuator, by being associated with multi-layer piezoelectric Bicrystal junction
The transverse movement of actuator, so as to increase power output；And apply axial precompression to each layer piezoelectric bimorph cantilever beam actuator
Reduce the equivalent lateral stiffness of actuator beam, realize big stroke start, the final output work for improving actuator.
The present invention will be further described below in conjunction with the accompanying drawings：
As shown in Fig. 1~2, in the present embodiment, cantilevered actuator is laminated in high-power piezoelectric bimorph, including three layers mutually
Parallel piezoelectric bimorph cantilever beam actuator is followed successively by upper strata piezoelectric bimorph cantilever beam actuator 2, middle lamination from top to bottom
Electrical twining piece cantilever beam actuator 3 and lower floor's piezoelectric bimorph cantilever beam actuator 4.Three layers of piezoelectric bimorph cantilever beam actuator
End is both secured on fixed pedestal 1.Every layer of piezoelectric bimorph cantilever beam actuator is multilayered structure, wherein intermediate for centre
Layer, the upper and lower surface of middle layer has sticked layer of piezo-electric material and lower floor's piezoelectric material respectively.Entire cantilevered actuator is in
Face mirror symmetry centered on layer piezoelectric bimorph cantilever beam actuator 3, width, thickness, the material of three layers of piezoelectric bimorph cantilever beam
The consistent only length of material is different, and the length of middle level piezoelectric bimorph cantilever beam actuator 3 is hanged more than other two layers of piezoelectric bimorph
The length of arm beam actuator.Two positions are chosen on three layers, three layers of piezoelectric bimorph cantilever beam length direction, position one is upper
The free end position of layer piezoelectric bimorph cantilever beam actuator 2 and lower floor's piezoelectric bimorph cantilever beam actuator 4, position two be compared with
Position one is closer to a certain position of fixed pedestal 1.Upper strata piezoelectric bimorph cantilever beam actuator 2 and lower floor's piezoelectric bimorph hang
After arm beam actuator 4 respectively passes through first axostylus axostyle 12, free end is respectively connected with second axostylus axostyle 13, middle level piezoelectricity
After Bicrystal junction actuator 3 sequentially passes through another the first axostylus axostyle 12, another the second axostylus axostyle 13 and third axostylus axostyle 8,
8 certain distance of third axostylus axostyle, the output terminal 9 as displacement are stretched out in free end.Three the first axostylus axostyles 12 are set at position one
In same vertical plane, and the plane is vertical with three layers of piezoelectric bimorph cantilever beam actuator (not under working condition).Three
The second axostylus axostyle of item 13 is set in the same vertical plane at position two, and the plane passes through upper strata piezoelectric bimorph cantilever beam
The free end of actuator 2 and the free end of lower floor's piezoelectric bimorph cantilever beam actuator 4, also with three layers of piezoelectric bimorph cantilever beam
Actuator is vertical (not under working condition).The both side ends of all first axostylus axostyle, 12 and second axostylus axostyles 13 are required to be interference fitted
Mode sets clutch shaft bearing 11 to be supported, and three clutch shaft bearings 11 in three article of first axostylus axostyle, 12 left side, three of right side the
One bearing 11 is each secured on same root connecting rod 10 with holes, three clutch shaft bearings 11, the right sides in three 13 left sides of the second axostylus axostyle
Three clutch shaft bearings 11 be also each secured on same root connecting rod 10 with holes.Due to including cantilever beam actuator both sides herein
With two lengthwise locations, thus four connecting rods 10 with holes are needed in total, three and first are opened up on every connecting rod 10 with holes
11 matched slot of bearing.The design causes the bending motion of three layers of piezoelectric bimorph cantilever beam actuator to pass through 4 companies with holes
Bar 10 forms association, can be by upper strata piezoelectric bimorph cantilever beam actuator 2 and lower floor's piezoelectric bimorph cantilever beam actuator 4
It is used as power and is transferred to middle level piezoelectric bimorph cantilever beam actuator 3.
In addition, in the present embodiment, it is also necessary to using elastic webbing 5 to the application of piezoelectric bimorph cantilever beam actuator and start
The axial precompression of device plane parallel.Referring to A-A, B-B, C-C sectional view in Fig. 2, in upper strata piezoelectric bimorph cantilever beam
Actuator 2 and lower floor's piezoelectric bimorph cantilever beam actuator 4 are on the second axostylus axostyle 13 of free end, in both sides clutch shaft bearing
Second bearing 6 is cased with interference fit type again respectively outside 11, in also being set respectively with interference fit type for 8 both sides of third axostylus axostyle
There is second bearing 6；Prefabricated card slot bearing holder (housing, cover) 7 is cased with interference fit type respectively in each second bearing 6；Each prefabricated card slot
It is circumferential on 7 outer wall of bearing holder (housing, cover) to offer card slot in advance, it is cased with the bullet that an end is fixed on fixed pedestal 1 on every clamp bar slot
Property band 5, every layer of piezoelectric bimorph cantilever beam apply axial precompression by the elastic webbing 5 of both sides.And in three layers of piezoelectric bimorph
For cantilever beam actuator not under working condition, the elastic force of every elastic webbing 5 is oriented parallel to piezoelectric bimorph cantilever beam actuator
Plane.
To prevent middle level piezoelectric bimorph cantilever beam actuator 3 and upper strata piezoelectric bimorph cantilever beam actuator 2 and lower floor
The elastic webbing 5 of piezoelectric bimorph cantilever beam actuator 4 interferes obstruction start, needs that third axostylus axostyle 8 is made to be longer than the second axostylus axostyle
13.Two elastic webbings 5 connected in middle level piezoelectric bimorph cantilever beam actuator 3 as a result, are with other four elastic webbings 5 not same
In one plane, will not mutually it interfere.
When cantilevered actuator works, need to make three layers of piezoelectric bimorph cantilever beam actuator curved to identical direction
Song, therefore upper strata piezoelectric bimorph cantilever beam actuator 2, middle level piezoelectric bimorph cantilever beam actuator 3 and lower floor's piezoelectric bimorph
The upper layer of piezo-electric material of piece cantilever beam actuator 4 need to connect the voltage of same polarity, and lower floor's piezoresistive material of three actuator
Material is all connected with the voltage of another opposite polarity.As shown in figure 3, three layers of piezoelectric bimorph cantilever beam of the cantilevered actuator are made
Dynamic device just can link to curving.But due in piezoelectric bimorph cantilever beam actuator bending process, in addition to what is be connected
Outside axostylus axostyle, remaining by piezoelectric bimorph cantilever beam actuator across axostylus axostyle and piezoelectric bimorph cantilever beam actuator not yet
Slip can be generated.Therefore preferably it is connected state between the two.
The start method of cantilevered actuator is laminated based on above-mentioned high-power piezoelectric bimorph, detailed process is as follows：Point
It is other that upper strata piezoelectric bimorph cantilever beam actuator 2, middle level piezoelectric bimorph cantilever beam actuator 3 and lower floor's piezoelectric bimorph are hanged
The upper layer of piezo-electric material of arm beam actuator 4 is passed through a kind of polar voltages, is passed through another polarity electricity to lower floor's piezoelectric material respectively
Pressure, makes three layers of piezoelectric bimorph actuator bend together to same direction, utilizes 9 output displacement of output terminal；When output terminal 9
By external load and only by middle level piezoelectric bimorph cantilever beam actuator 3 be used as power be unable to reach require inflection point when,
Upper strata piezoelectric bimorph cantilever beam actuator 2 and lower floor's piezoelectric bimorph cantilever beam actuator 4 are by connecting rod 10 with holes by start
Power is transferred to middle level piezoelectric bimorph cantilever beam actuator 3, and increase output terminal 9 is used as power and start displacement is made to reach requirement deflection
Position；In three layers of piezoelectric bimorph cantilever beam actuator bending process, by binding round the bullet in prefabricated 7 card slot of card slot bearing holder (housing, cover)
Property band 5 respectively three layers of piezoelectric bimorph cantilever beam actuator are applied with axial precompressions, utilize axial direction precompression reduction beam
Equivalent bending stiffness, so as to increase the end output displacement of three layers of piezoelectric bimorph cantilever beam actuator.It should be noted that bullet
Property band 5 apply axial precompression need to be less than piezoelectric bimorph cantilever beam actuator single order axial direction buckling power, prevent damage make
Dynamic device.
The parallel connection of multi-layer piezoelectric twin lamella actuator is passed through axial precompression increase actuating travel by the present invention, so as to carry
High output work of the piezoelectric actuator in small space, also can flexible design start for different narrow inside configuration spaces
Device structure.The materials such as piezoelectric ceramics, piezoelectric fibre composite material can be used in piezoelectric material in the present invention.
Claims (10)
1. cantilevered actuator is laminated in a kind of high-power piezoelectric bimorph, it is characterised in that：It is both secured to including three layers of end solid
Determine the piezoelectric bimorph cantilever beam actuator on pedestal (1), be followed successively by upper strata piezoelectric bimorph cantilever beam actuator from top to bottom
(2), middle level piezoelectric bimorph cantilever beam actuator (3) and lower floor's piezoelectric bimorph cantilever beam actuator (4), upper strata piezoelectric bimorph
Piece cantilever beam actuator (2) and lower floor's piezoelectric bimorph cantilever beam actuator (4) are with middle level piezoelectric bimorph cantilever beam actuator
(3) face mirror symmetry centered on, the length of middle level piezoelectric bimorph cantilever beam actuator (3) are more than other two layers of piezoelectric bimorph
The length of cantilever beam actuator；Upper strata piezoelectric bimorph cantilever beam actuator (2) and lower floor's piezoelectric bimorph cantilever beam actuator
(4) after respectively passing through first axostylus axostyle (12), free end is respectively connected with second axostylus axostyle (13), middle level piezoelectric bimorph
Piece cantilever beam actuator (3) sequentially passes through another the first axostylus axostyle (12), another the second axostylus axostyle (13) and third axostylus axostyle (8)
Afterwards, output terminal (9) of the free end as displacement；The both side ends of all first axostylus axostyles (12) and the second axostylus axostyle (13) are equipped with
Clutch shaft bearing (11), three the first axostylus axostyles (12) are positioned at the same plane vertical with three layers of piezoelectric bimorph cantilever beam actuator
On, and three clutch shaft bearings (11) of three the first axostylus axostyles (12) per side are fixed on a connecting rod (10) with holes, three
Second axostylus axostyle (13) also is located at across upper strata piezoelectric bimorph cantilever beam actuator (2) free end and lower floor's piezoelectric bimorph cantilever
On the same plane of beam actuator (4) free end, and three clutch shaft bearings (11) of three the second axostylus axostyles (13) per side are also each
It is fixed on a connecting rod (10) with holes, the bending motion of three layers of piezoelectric bimorph cantilever beam actuator is made to pass through 4 companies with holes
Bar (10) forms association；In upper strata piezoelectric bimorph cantilever beam actuator (2) and lower floor's piezoelectric bimorph cantilever beam actuator (4)
On the second axostylus axostyle (13) of free end, second bearing (6) is cased with again respectively outside in both sides clutch shaft bearing (11), in third
Axostylus axostyle (8) both sides are equipped with second bearing (6)；It is cased with prefabricated card slot bearing holder (housing, cover) (7) respectively in each second bearing (6), each
It is circumferential on prefabricated card slot bearing holder (housing, cover) (7) outer wall to offer card slot in advance, it is cased with an end on every clamp bar slot and is fixed on fixation
Elastic webbing (5) on pedestal (1), every layer of piezoelectric bimorph cantilever beam apply axial precompression by the elastic webbing (5) of both sides.
2. cantilevered actuator is laminated in high-power piezoelectric bimorph as described in claim 1, it is characterised in that：The third
Axostylus axostyle (8) is longer than the second axostylus axostyle (13), two elastic webbings (5) connected in middle level piezoelectric bimorph cantilever beam actuator (3) with
Other four elastic webbings (5) are not in the same plane.
3. cantilevered actuator is laminated in high-power piezoelectric bimorph as described in claim 1, it is characterised in that：Described first
Bearing (11) and second bearing (6) are sheathed on interference fit type outside axostylus axostyle.
4. cantilevered actuator is laminated in high-power piezoelectric bimorph as described in claim 1, it is characterised in that：Described is prefabricated
Card slot bearing holder (housing, cover) (7) is circumferentially sheathed on bearing with interference fit type.
5. cantilevered actuator is laminated in high-power piezoelectric bimorph as described in claim 1, it is characterised in that：In three lamination electricity
For Bicrystal junction actuator not under working condition, the elastic force of every elastic webbing (5) is oriented parallel to piezoelectric bimorph cantilever beam
The plane of actuator.
6. cantilevered actuator is laminated in high-power piezoelectric bimorph as described in claim 1, it is characterised in that：By the piezoelectricity
Bicrystal junction actuator across axostylus axostyle and piezoelectric bimorph cantilever beam actuator be connected state.
7. cantilevered actuator is laminated in high-power piezoelectric bimorph as described in claim 1, it is characterised in that：The piezoelectricity
Bicrystal junction actuator is pasted on upper layer of piezo-electric material and the lower floor on the upper and lower surface of middle layer by middle layer and respectively
Piezoelectric material forms.
8. cantilevered actuator is laminated in high-power piezoelectric bimorph as claimed in claim 7, it is characterised in that：Upper strata piezoelectricity is double
Chip cantilever beam actuator (2), middle level piezoelectric bimorph cantilever beam actuator (3) and lower floor's piezoelectric bimorph cantilever beam actuator
(4) upper layer of piezo-electric material is all connected with the voltage of same polarity, and lower floor's piezoelectric material is all connected with the electricity of another opposite polarity
Pressure.
9. a kind of start method that cantilevered actuator is laminated using high-power piezoelectric bimorph as described in claim 1, special
Sign is：Respectively to upper strata piezoelectric bimorph cantilever beam actuator (2), middle level piezoelectric bimorph cantilever beam actuator (3) and under
The upper layer of piezo-electric material of layer piezoelectric bimorph cantilever beam actuator (4) is passed through a kind of polar voltages, respectively to lower floor's piezoelectric material
Another polar voltages are passed through, three layers of piezoelectric bimorph actuator is made to bend together to same direction, are utilized output terminal (9)
Output displacement；When output terminal (9) by external load and is only used as power nothing by middle level piezoelectric bimorph cantilever beam actuator (3)
When method reaches requirement inflection point, upper strata piezoelectric bimorph cantilever beam actuator (2) and lower floor's piezoelectric bimorph cantilever beam start
Device (4) will be used as power by connecting rod with holes (10) is transferred to middle level piezoelectric bimorph cantilever beam actuator (3), increases output terminal
(9) it is used as power and start displacement is made to reach requirement inflection point；In three layers of piezoelectric bimorph cantilever beam actuator bending process,
Three layers of piezoelectric bimorph cantilever beam actuator are applied respectively by binding round the elastic webbing (5) in prefabricated card slot bearing holder (housing, cover) (7) card slot
Add axial precompression, reduce the equivalent bending stiffness of beam using the axial direction precompression, so as to increase three layers of piezoelectric bimorph cantilever
The end output displacement of beam actuator.
10. the start method of cantilevered actuator is laminated in high-power piezoelectric bimorph as claimed in claim 9, feature exists
In：The axial precompression that elastic webbing (5) applies is less than the single order axial direction buckling power of piezoelectric bimorph cantilever beam actuator.
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| CN201810058817.2A CN108199607B (en) | 2018-01-22 | 2018-01-22 | Cantilevered actuator is laminated in high-power piezoelectric bimorph |
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| CN201810058817.2A CN108199607B (en) | 2018-01-22 | 2018-01-22 | Cantilevered actuator is laminated in high-power piezoelectric bimorph |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111162687A (en) * | 2020-01-15 | 2020-05-15 | 中国计量大学 | Twin-chip large-displacement deformation wing based on pre-compression laminated piezoelectric composite material and method thereof |
| RU2811420C1 (en) * | 2023-10-24 | 2024-01-11 | федеральное государственное автономное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" | Method for manufacturing piezoelectric actuator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612419A (en) * | 2017-09-11 | 2018-01-19 | 上海交通大学 | The wide fast domain piezoelectric type wind energy collector of magnetic force boundary constraint enhancing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107612419A (en) * | 2017-09-11 | 2018-01-19 | 上海交通大学 | The wide fast domain piezoelectric type wind energy collector of magnetic force boundary constraint enhancing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111162687A (en) * | 2020-01-15 | 2020-05-15 | 中国计量大学 | Twin-chip large-displacement deformation wing based on pre-compression laminated piezoelectric composite material and method thereof |
| RU2811420C1 (en) * | 2023-10-24 | 2024-01-11 | федеральное государственное автономное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" | Method for manufacturing piezoelectric actuator |
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| CN108199607B (en) | 2019-08-13 |
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