CN206564550U - Inertia drive based on piezoelectric fabric - Google Patents
Inertia drive based on piezoelectric fabric Download PDFInfo
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- CN206564550U CN206564550U CN201720289062.8U CN201720289062U CN206564550U CN 206564550 U CN206564550 U CN 206564550U CN 201720289062 U CN201720289062 U CN 201720289062U CN 206564550 U CN206564550 U CN 206564550U
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- mass
- piezoelectric fabric
- metallic plate
- piezoelectric
- electric signal
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Abstract
The utility model is related to a kind of inertia drive based on piezoelectric fabric, including actuator and two masses.Actuator is made up of piezoelectric fabric and prebuckling in the metallic plate bonding of certain radian, piezoelectric fabric elongation strain under alternating voltage effect, metal sheet surface is set to produce moment of flexure, metallic plate two ends connect two masses, the mass of lower section plays stable and supporting role, and the mass of top produces inertia force during motion.Under electric signal excitation, piezoelectric fabric elongation strain, metallic plate drives top mass to swing to the right rapidly, inertial impact force to the left is produced, device is integrally moved to the left, and then changes the electric signal of input, metallic plate restores, mobile on the left of the mass of top, device returns to original state, completes a period of motion.By changing the electrical signal form of input, it can also move right device.The utility model have the advantages that it is simple in construction, be easily achieved, device reliability is high, pumping signal is easy to produce and controlled.
Description
Technical field
The utility model belongs to precision optical machinery driving field.In terms of microrobot driving, microminiature machinery.
Background technology
In recent years, with the fast development of nanometer technique, in biomedical engineering, precision optical machinery, robot, calculating
Machine, automatically control, accurate measurement, accurate device micro manufacturing, the technical field such as Ultra-precision Turning is to the driving skill of microminiature machinery
The demand of art is increasing.As the core of micro-move device technology, micro-move device technology turns into Jiao of concern under this demand
Point.Traditional precision actuation is mainly using mechanically, and such as precision lead screw is secondary and rolls rail plate, precision auger cotter mechanism,
But due to there are problems that gap, rub, its precision be difficult meet require, develop under these conditions many new
Type of drive, such as electrostatic attraction, electromagnetic type, magnetostriction type, marmem formula and piezoelectric type.
The operation principle of Piezoelectric Driving is mainly the inverse piezoelectric effect of application piezoelectric, i.e., when piezoelectrics are by electric field action
When can produce deformation, have the advantages that compared with other modes electromechanical transformation ratio it is high, without electromagnetic interference, fast response time, and
Flexible piezoelectric fiber can be used on curved-surface structure, had broad application prospects in terms of novel intelligent material.
Another aspect inertia-type Piexoelectric actuator is because it is in impulse stroke, resolution ratio, working frequency, movement velocity, frequency
Rate response, manufacturing cost, by having unique advantage in terms of the stagnant ring draw degree of piezoelectric element, have been developed as pressure
One pith of electric precision actuation.Believed more than existing piezoelectric inertia drive device using Asymmetric Electric signal as excitation
Number, but this drive device has the shortcomings that signal is not easy to generation, mechanism and is not easily controlled, has the larger motion that retracts.In view of mesh
The problems of preceding piezoelectric inertia drive device, the utility model proposes a kind of inertia drive based on piezoelectric fabric,
The inertial impact force produced using mass, with the frictional force between timed unit and contact surface, produces Piexoelectric actuator
Directed movement.With it is simple in construction, be easily achieved, device reliability is high, is easy to produce and controls without electromagnetic interference, pumping signal
System, the advantages of device controllability is good.
The content of the invention
The technical problem of solution is required for of the invention：Piezoelectric fabric (2) elongation strain under electric signal excitation, driving gold
Belonging to plate (3) drives top mass 1 (1) to swing, and is realized and filled using the inertial impact force produced in mass 1 (1) swing process
Put overall motion.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
Described piezoelectric fabric (2) uses conductive adhesive with metallic plate (3).
Described metallic plate (3) processes certain radian, so as to make it have more preferable mechanical property, spiral shell is processed into end
Line post is so as to quality of connection block 1 (1), mass 2 (4).Mass 1 (1) and mass 2 (4) have corresponding screwed hole simultaneously.
Bonding piezoelectric fabric in the middle part of described metallic plate (3), two ends are connected with mass 1 (1) mass 2 (4) respectively.
To the inertia drive input signal based on piezoelectric fabric, piezoelectric fabric (2) elongation strain is driven
Dynamic metallic plate (3) drives mass 1 (1) to swing to the right rapidly, then changes electric signal, and metallic plate restores, and mass 1 (1) is left
Side is moved, and the inertial impact force produced when being moved using mass during this 1 (1) realizes device to left movement.
To the inertia drive input signal based on piezoelectric fabric, piezoelectric fabric (2) elongation strain is driven
Dynamic metallic plate (3) drives mass 1 (1) slowly to swing to the right, then changes electric signal, metallic plate Fast Restoration, mass 1
(1) move to the left rapidly, produce inertial impact force to the right, while its centrifugal intertia force reduces whole drive device and ground
Normal pressure between face, that is, the frictional force on driver and ground is reduced, device integrally moves right.
Inertia starter of the present invention based on piezoelectric fabric is mutually bonded by metallic plate (3) with piezoelectric fabric (2)
Design, effectively reduce the complexity of structure, overcome the shortcoming that device is not easily controlled.Device orient motion is reached
Purpose.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the inertial piezoelectric drive device based on piezoelectric fabric；
Fig. 2 is motion schematic diagram of the inertial piezoelectric drive device based on piezoelectric fabric to left movement；
Fig. 3 is the motion schematic diagram that the inertial piezoelectric drive device based on piezoelectric fabric is moved right；
Fig. 4 is multiple actuator collective effects in the schematic diagram of inertial piezoelectric drive device.
Embodiment
The utility model is related to a kind of inertia drive based on piezoelectric fabric, is a kind of inverse pressure of utilization piezoelectric fabric
Electrical effect and inertial drive principle drive mechanism realize the novel driving device of motion.As shown in figure 1, prebuckling is in certain radian
Metallic plate (3) Nian Jie with piezoelectric fabric (2) constitute actuator, metallic plate (3) two ends difference quality of connection block 1 (1) and quality
Block 2 (4), wherein mass 2 (4) play stable and supporting role, and mass 1 (1) produces inertia force during motion.Pressure
It is in parallel Nian Jie using conducting resinl between electric fiber and metallic plate.Metallic plate (3) processes certain radian, and threaded post is processed into end
So as to quality of connection block 1 (1) and mass 2 (4), mass 1 (1), mass 2 (4) have corresponding screwed hole.Wherein quality
Block 2 (4) is longer than mass 1 (1), device is more stablized during motion.Metallic plate should have when being bonded piezoelectric fabric
Appropriate predeformation, reaches increase mass stroke, so that beneficial to the purpose of store kinetic energy.
Piezoelectric fabric (2) contraction distortion in the presence of electric signal, metallic plate (3) drives mass 1 (1) to put to the right rapidly
It is dynamic, the corresponding inertial impact force produced to the left, while its centrifugal intertia force reduces the normal pressure between whole device and ground,
Drive device and the frictional force on ground are namely reduced, device is integrally moved to the left, then change the input of electric signal, metal
Plate restores, mobile on the left of mass 1 (1), and device returns to original state, completes a period of motion, repeats said process
The overall continuous motion to the left of device can be realized.Change the electrical signal form being passed through, piezoelectric fabric (2) contraction distortion, driving
Metallic plate (3) drives mass 1 (1) slowly to swing to the right, then changes electric signal, metallic plate Fast Restoration, mass 1 (1)
Swing to the left rapidly, inertial impact force to the right is produced, while its centrifugal intertia force is reduced between whole device and ground
Normal pressure, that is, drive device and the frictional force on ground are reduced, device integrally moves right, and completes a period of motion,
The overall continuous motion to the right of device can be realized by repeating said process.
Claims (2)
1. a kind of inertia drive based on piezoelectric fabric, it include mass 1 (1), piezoelectric fabric (2), metallic plate (3),
Mass 2 (4), it is characterised in that：Power source is that, with flexible piezoelectric fabric, prebuckling is in the metallic plate and pressure of certain radian
Electric fiber bonding constitutes actuator, is worked using inertial drive principle, under electric signal excitation, piezoelectric fabric elongation strain, metal
Strip kinoplaszm gauge block 1 (1) is swung to the right rapidly, the corresponding inertial impact force produced to the left, while its centrifugal intertia force is reduced
Whole normal pressure between drive device and ground, that is, reduce drive device and the frictional force on ground, device it is overall to
Move left, then change the input of electric signal, metallic plate restores, mobile on the left of mass 1 (1), and device recovers original state,
A period of motion is completed, the overall continuous motion to the left of device can be realized by repeating said process.
2. the inertia drive according to claim 1 based on piezoelectric fabric, it is characterised in that：Actuator can have one
It is individual, it is possibility to have multiple to be distributed on mass 2 (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720289062.8U CN206564550U (en) | 2017-03-23 | 2017-03-23 | Inertia drive based on piezoelectric fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720289062.8U CN206564550U (en) | 2017-03-23 | 2017-03-23 | Inertia drive based on piezoelectric fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206564550U true CN206564550U (en) | 2017-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720289062.8U Expired - Fee Related CN206564550U (en) | 2017-03-23 | 2017-03-23 | Inertia drive based on piezoelectric fabric |
Country Status (1)
| Country | Link |
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| CN (1) | CN206564550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106982003A (en) * | 2017-03-23 | 2017-07-25 | 吉林大学 | Inertia drive based on piezoelectric fabric |
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2017
- 2017-03-23 CN CN201720289062.8U patent/CN206564550U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106982003A (en) * | 2017-03-23 | 2017-07-25 | 吉林大学 | Inertia drive based on piezoelectric fabric |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171017 Termination date: 20200323 |