CN205666769U - Serial -type piezoelectricity directional driver - Google Patents
Serial -type piezoelectricity directional driver Download PDFInfo
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- CN205666769U CN205666769U CN201620579837.0U CN201620579837U CN205666769U CN 205666769 U CN205666769 U CN 205666769U CN 201620579837 U CN201620579837 U CN 201620579837U CN 205666769 U CN205666769 U CN 205666769U
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- supporting leg
- oscillator
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- series voltage
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Abstract
The utility model relates to a serial -type piezoelectricity directional driver, include: first supporting leg, second supporting leg, series connection piezoelectric vibrator, first foot support and second foot support, wherein: series connection piezoelectric vibrator makes up the cylinder structure that forms by the circular piezoelectric vibrator of a plurality of and a plurality of go -between, spliced pole, first supporting leg and second supporting leg symmetry are pasted series connection piezoelectric vibrator's both ends, first foot support and second foot support are formed by two kinds of material complexes that have different coefficient of friction, arrange respectively first supporting leg with on the second supporting leg, the flexible deformation takes place for the circular telegram of series connection piezoelectric vibrator, causes different coefficient of friction materials and working face contact on two foot supports to produce directional driving force, the device is as the driver, mainly used bionic robot, surveys field such as rescue, has advantages such as driving energy reinforce, environmental suitability are strong.
Description
Technical field
This utility model belongs to Piezoelectric Driving field, is specifically related to a kind of tandem piezoelectricity directional driver.
Background technology
Along with the development of science and technology, micro drives technology is rescued in ultraprecise machinery and manufacture thereof, accurate measurement, detection
Help, the ambit such as biologic medical occupies increasingly consequence, what various forms was different have precision actuation, accurate fixed
The next-generation drive of position is developed successively.Along with the development of piezoelectric driving technology, with piezoelectric ceramics for Core Feature material
The driver of material drives field to show one's talent at Ultra-precision positioning.Piezoelectric ceramic actuator has that energy density is big, response speed
Hurry up, the advantage such as resolution height, electromagnetism interference, low temperature resistant vacuum environment.But, existing piezoelectric type mini drive structure is multiple
Miscellaneous, processing difficulties, owing to the deflection of piezoelectric ceramics is little, therefore driving force is poor, and mostly is rigid structure, drives during work
Dynamic device directly with working face rigid contact, the requirement to working environment is of a relatively high, therefore a kind of driving force of design by force, ring
Border adaptable microminiature driver is the most particularly significant.
Summary of the invention
In order to solve the problem that the most general microminiature piezoelectric actuator driving force is poor, environmental suitability is poor, propose
A kind of tandem piezoelectricity directional driver, this driver by the first supporting leg, the second supporting leg, series voltage oscillator, first
Foot bearing and crus secunda bearing are constituted, and the energising of described series voltage oscillator occurs dilatation, drive foot bearing to move back and forth, by
Existence in frictional force makes the different coefficients of friction material on bipod bearing alternately contact with work surface, and foot bearing moves back and forth
Time the frictional force difference skidding distance that is subject to the most different, therefore form the driving force to direction, low-friction coefficient material place.
This utility model is compared with existing piezoelectric actuator, and due to piezoelectric vibrator arranged in series, therefore deformation quantity is bigger, driving force
Higher；On the other hand, driver contacts with work surface itself by flexible body foot bearing, it is to avoid rigid contact, to work
The requirement in face is relatively low, improves environmental suitability and driving force, can also extend the use longevity of piezoelectric ceramics in driver simultaneously
Life.
To achieve these goals, this utility model is by the following technical solutions:
This utility model one tandem piezoelectricity directional driver, including: the first supporting leg, the second supporting leg, series connection pressure
Electric tachometer indicator, the first foot bearing and crus secunda bearing, wherein: described series voltage oscillator is by several circular piezoelectric vibrators and some
Individual connection ring, connection post composition；Described connection ring, circular piezoelectric vibrator, connection post, circular piezoelectric vibrator replace the most successively
Arranged；Described connection post is coaxial with circular piezoelectric vibrator；Described connection ring is coaxial with circular piezoelectric vibrator；Described connection ring
The equal diameters of external diameter and circular pressure oscillator；Described connection post basal diameter is less than the radius of circular piezoelectric vibrator；Described string
The two ends of connection piezoelectric vibrator connect by connecting ring and the first supporting leg and the second supporting leg；Described first supporting leg and second
Support leg is rectangular thin plate structure, and size shape is identical；Described first supporting leg and the second supporting leg symmetry are pasted onto described
On two connection rings at series voltage oscillator two ends；Described first supporting leg and the second supporting leg length are more than series voltage oscillator
In connection ring external diameter, side formed external part；Described first foot bearing is column structure, by two kinds of different coefficients of friction
Material cladding forms, and i.e. being bondd by the first great friction coefficient material and the first low-friction coefficient material symmetry forms；Described second
The size of foot bearing, structure, material are identical with described first foot bearing；The external part of described first supporting leg and described the
One foot bearing is connected by the way of bonding；The external part of described second supporting leg passes through bonding with described crus secunda bearing
Mode is connected；The friction high with second on described crus secunda bearing of the first low-friction coefficient material on described first foot bearing
Coefficient material is positioned opposite, or the on the first great friction coefficient material on described first foot bearing and described crus secunda bearing
Two low-friction coefficient materials are positioned opposite.
Described series voltage oscillator is by several circular piezoelectric vibrators and several connection rings, the circle of connection column combination
Column structure, or by several Rectangular piezoelectric oscillators and several end rectangle contiguous blocks, the combination of central rectangular contiguous block
The rectangular cylinder structure become, as it is shown on figure 3, wherein: described end rectangle contiguous block, Rectangular piezoelectric oscillator, central rectangular connect
Block, the most alternately arranged layout of Rectangular piezoelectric oscillator；Described end rectangle contiguous block is arranged in pairs at Rectangular piezoelectric and shakes
The two ends of son；Described central rectangular contiguous block is arranged in the center of Rectangular piezoelectric oscillator；The two of described series voltage oscillator
Hold and connected by end rectangle contiguous block and the first supporting leg and the second supporting leg.
Described series voltage oscillator is by several circular piezoelectric vibrators and several connection rings, the circle of connection column combination
Column structure, or the rectangular cylinder knot combined by several Rectangular piezoelectric oscillators and several end rectangle contiguous blocks
Structure, as shown in Figure 4, wherein: described end rectangle contiguous block, the most alternately arranged layout of Rectangular piezoelectric oscillator；Described
End rectangle contiguous block is alternately arranged at the top and bottom of Rectangular piezoelectric oscillator successively.
During work, driver is placed on working face, described first foot bearing and crus secunda bearing and working face
Contact.Described series voltage oscillator applies low-frequency ac voltage and brings it about reciprocal telescopic deformation, drive two supporting legs
Close to each other or be located remotely from each other.In supporting leg moving process, foot bearing is by the frictional force contrary with moving direction, frictional force
Make foot bearing relative support lower limb that one small twisting to occur, promote on two foot bearings the material of different coefficients of friction respectively with
Work surface contacts, as shown in Figure 6.The operation principle schematic diagram of this driver is as shown in Figure 7: this driver the first foot bearing and
The left half-sections of crus secunda bearing is respectively the first great friction coefficient material and the second great friction coefficient material, right half-sections
Be respectively the first low-friction coefficient material and the second low-friction coefficient material, when series voltage oscillator is not powered on, driver in
Naturalness, bipod bearing twists, as shown in a in Fig. 7；When the energising elongation of series voltage oscillator, drive two
Supporting leg is located remotely from each other, and the frictional force that work surface produces makes two foot bearings produce a small torsion respectively relative to supporting leg
Dynamic, the first great friction coefficient material on the first foot bearing contacts with work surface, and the second low friction system on crus secunda bearing
Number materials contact with work surface, and when therefore series voltage oscillator extends, the skidding distance of the first foot bearing is significantly less than crus secunda and props up
The skidding distance of seat, as shown in fig. 7b；When the energising of series voltage oscillator is shortened, drive two supporting legs close to each other,
The direction that now work surface produces changes, and two foot bearings are small relative to supporting leg generation one the most again
Opposite direction twisting, now the first low-friction coefficient material on the first foot bearing contacts with work surface, and on crus secunda bearing
The second great friction coefficient material contact with work surface, therefore series voltage oscillator shorten time the first foot bearing skidding distance bright
The aobvious skidding distance more than crus secunda bearing, as shown in fig. 7 c, now completes a cycle of operation；In like manner, when series connection pressure
When electric tachometer indicator energising extends again, the skidding distance of the first foot bearing is significantly less than the skidding distance of crus secunda bearing, in Fig. 7
D shown in.Within a cycle of the energising elongation of series voltage oscillator and shortening, crus secunda bearing during the elongation of series voltage oscillator
There is bigger sliding, the sliding that when series voltage oscillator shortens, the first foot bearing generation is bigger, thus meeting within a cycle
Produce a total step-length to the right.Under alternating voltage effect, this driver realizes the stepper drive ability of orientation.
Accompanying drawing explanation
Fig. 1 is the structure chart of this utility model a kind of tandem piezoelectricity directional driver.
Fig. 2 is the activation configuration schematic diagram of the series voltage oscillator composition of this utility model cylindrical structure.
Fig. 3 is the activation configuration signal of the series voltage oscillator composition of this utility model symmetrical expression rectangular cylinder structure
Figure.
Fig. 4 is the activation configuration signal of the series voltage oscillator composition of this utility model asymmetric rectangular cylinder structure
Figure.
Fig. 5 is this utility model compound foot bearing schematic diagram.
Fig. 6 is that this utility model compound foot Bearing Seat Force twists schematic diagram.
Fig. 7 is this utility model one tandem piezoelectricity directional driver operation principle schematic diagram.
Detailed description of the invention
With reference to Fig. 1, Fig. 2, Fig. 5, Fig. 6 and Fig. 7, this utility model one tandem piezoelectricity directional driver is supported by first
Lower limb the 1, second supporting leg 2, series voltage oscillator the 3, first foot bearing 4 and crus secunda bearing 5 are constituted, wherein:
Described series voltage oscillator 3 is made up of several circular piezoelectric vibrators 31 and several connection rings 32, connection post 33；
Described connection ring 32, circular piezoelectric vibrator 31, connection post 33, the most alternately arranged layout of circular piezoelectric vibrator 31；Institute
State connection post 33 coaxial with circular piezoelectric vibrator 31；Described connection ring 32 is coaxial with circular piezoelectric vibrator 31；Described connection ring 32
The equal diameters of external diameter and circular pressure oscillator 31；Described connection post 33 basal diameter is less than the radius of circular piezoelectric vibrator 31；
The two ends of described series voltage oscillator 3 are connected with the first supporting leg 1 and the second supporting leg 2 by connecting ring 32；Described first
Support leg 1 and the second supporting leg 2 are rectangular thin plate structure, and size shape is identical；Described first supporting leg 1 and the second supporting leg
2 symmetries are pasted onto on two connection rings 32 at described series voltage oscillator 3 two ends；Described first supporting leg 1 and the second supporting leg 2
Length, more than connection ring 32 external diameter in series voltage oscillator 3, forms external part in side；Described first foot bearing 4 is cylinder
Structure, is formed by the Material cladding of two kinds of different coefficients of friction, i.e. by the first great friction coefficient material 41 and the first low friction system
The symmetrical bonding of number material 42 forms；The size of described crus secunda bearing 5, structure, material and the described first complete phase of foot bearing 4
With；The external part of described first supporting leg 1 is connected with described first foot bearing 4；The external part of described second supporting leg 2 is with described
Crus secunda bearing 5 connects；The first low-friction coefficient material 42 on described first foot bearing 4 with on described crus secunda bearing 5
Second great friction coefficient material 51 is positioned opposite.
During work, driver being placed on working face, described first foot bearing 4 and crus secunda bearing 5 are flat with work
Face contacts.Described series voltage oscillator 3 applies low-frequency ac voltage and brings it about reciprocal telescopic deformation, at dilatation
During, on the foot bearing of two, left and right, the material of different coefficients of friction contacts with work surface respectively, due to frictional force difference bipod
Bearing produces different slippages, therefore produces the directed driven ability to direction, low-friction coefficient material place.
Claims (3)
1. a tandem piezoelectricity directional driver, including the first supporting leg (1), the second supporting leg (2), it is characterised in that also wrap
Include series voltage oscillator (3), the first foot bearing (4) and crus secunda bearing (5), wherein: described series voltage oscillator (3) is by some
Individual circular piezoelectric vibrator (31) and several connections ring (32), connection post (33) composition；Described connection ring (32), circular piezoelectric shake
Son (31), connection post (33), circular piezoelectric vibrator (31) the most alternately arranged layout；Described connection post (33) is with circular
Piezoelectric vibrator (31) is coaxial；Described connection ring (32) is coaxial with circular piezoelectric vibrator (31)；The external diameter of described connection ring (32) with
The equal diameters of circular pressure oscillator (31)；Described connection post (33) basal diameter is less than the radius of circular piezoelectric vibrator (31)；Institute
The two ends stating series voltage oscillator (3) are connected with the first supporting leg (1) and the second supporting leg (2) by connecting ring (32)；Described
First supporting leg (1) and the second supporting leg (2) are rectangular thin plate structure, and size shape is identical；Described first supporting leg (1)
It is pasted onto on two connections ring (32) at described series voltage oscillator (3) two ends with the second supporting leg (2) symmetry；Described first
Support leg (1) and the second supporting leg (2) length, more than connection ring (32) external diameter in series voltage oscillator (3), are formed in side and stretch
Go out end；Described first foot bearing (4) is column structure, the Material cladding of two kinds of different coefficients of friction form, i.e. high by first
Coefficient of friction material (41) and the symmetrical bonding of the first low-friction coefficient material (42) form；The size of described crus secunda bearing (5),
Structure, material are identical with described first foot bearing (4)；The external part of described first supporting leg (1) props up with described first foot
Seat (4) connects；The external part of described second supporting leg (2) is connected with described crus secunda bearing (5)；Described first foot bearing (4)
On the first low-friction coefficient material (42) and the second great friction coefficient material (51) relative cloth on described crus secunda bearing (5)
Put, or the first great friction coefficient material (41) on described first foot bearing (4) is low with second on described crus secunda bearing (5)
Coefficient of friction material (52) is positioned opposite.
A kind of tandem piezoelectricity directional driver the most according to claim 1, it is characterised in that: described series voltage oscillator
(3) by several circular piezoelectric vibrators (31) and several connections ring (32), the cylindrical structure that post (33) combines is connected,
Or by several Rectangular piezoelectric oscillators (34) and several ends rectangle contiguous block (35), central rectangular contiguous block (36) combination
Rectangular cylinder structure, wherein: described end rectangle contiguous block (35), Rectangular piezoelectric oscillator (34), central rectangular connect
Block (36), Rectangular piezoelectric oscillator (34) the most alternately arranged layout；Described end rectangle contiguous block (35) is arranged in pairs
Two ends in Rectangular piezoelectric oscillator (34)；Described central rectangular contiguous block (36) is arranged in the centre bit of Rectangular piezoelectric oscillator (34)
Put；The two ends of described series voltage oscillator (3) are by end rectangle contiguous block (35) and the first supporting leg (1) and the second supporting leg
(2) connect.
A kind of tandem piezoelectricity directional driver the most according to claim 1, it is characterised in that: described series voltage oscillator
(3) by several circular piezoelectric vibrators (31) and several connections ring (32), the cylindrical structure that post (33) combines is connected,
Or the rectangular cylinder structure combined by several Rectangular piezoelectric oscillators (34) and several ends rectangle contiguous block (35),
Wherein: described end rectangle contiguous block (35), Rectangular piezoelectric oscillator (34) the most alternately arranged layout；Described end square
Shape contiguous block (35) is alternately arranged at the top and bottom of Rectangular piezoelectric oscillator (34) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620579837.0U CN205666769U (en) | 2016-06-12 | 2016-06-12 | Serial -type piezoelectricity directional driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620579837.0U CN205666769U (en) | 2016-06-12 | 2016-06-12 | Serial -type piezoelectricity directional driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205666769U true CN205666769U (en) | 2016-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620579837.0U Withdrawn - After Issue CN205666769U (en) | 2016-06-12 | 2016-06-12 | Serial -type piezoelectricity directional driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205666769U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846713A (en) * | 2016-06-12 | 2016-08-10 | 吉林大学 | Tandem piezoelectric directional driver |
| CN108063564A (en) * | 2018-01-12 | 2018-05-22 | 吉林大学 | A kind of novel friction type linear piezoelectric actuator |
| CN110005596A (en) * | 2019-04-26 | 2019-07-12 | 燕山大学 | A kind of drive-type piezoelectricity membrane pump |
-
2016
- 2016-06-12 CN CN201620579837.0U patent/CN205666769U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846713A (en) * | 2016-06-12 | 2016-08-10 | 吉林大学 | Tandem piezoelectric directional driver |
| CN105846713B (en) * | 2016-06-12 | 2017-07-28 | 吉林大学 | A kind of tandem piezoelectricity directional driver |
| CN108063564A (en) * | 2018-01-12 | 2018-05-22 | 吉林大学 | A kind of novel friction type linear piezoelectric actuator |
| CN108063564B (en) * | 2018-01-12 | 2023-12-01 | 吉林大学 | Novel friction type linear piezoelectric driver |
| CN110005596A (en) * | 2019-04-26 | 2019-07-12 | 燕山大学 | A kind of drive-type piezoelectricity membrane pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161026 Effective date of abandoning: 20170728 |