CN206743125U - One kind becomes frictional force formula piezoelectric inertia linear actuator - Google Patents
One kind becomes frictional force formula piezoelectric inertia linear actuator Download PDFInfo
- Publication number
- CN206743125U CN206743125U CN201720107135.7U CN201720107135U CN206743125U CN 206743125 U CN206743125 U CN 206743125U CN 201720107135 U CN201720107135 U CN 201720107135U CN 206743125 U CN206743125 U CN 206743125U
- Authority
- CN
- China
- Prior art keywords
- frictional force
- piezoelectric
- linear actuator
- piezoelectric bimorph
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
Change frictional force formula piezoelectric inertia linear actuator described in the utility model, its beryllium-bronze substrate connects to form piezoelectric bimorph with two panels piezoelectric monocrystal sheet respectively, by the company's of bonding impact mass block, the other end and holding piece are fixed by grip block in the presence of tack cross grooving screw for one end of beryllium-bronze substrate.Its piezoelectric bimorph uses asymmetric clamping, and it is poor that the position by adjusting grip block changes clamping；By the use of ripple electric signal as pumping signal, piezoelectric bimorph piece element rapid deformation produces reciprocal different inertial impact force, so as to form linear motion.Piezoelectric bimorph can change the normal pressure between linear actuator and contact surface by the annular groove design of moving person in rotary oscillation between 0 ° to 180 °, so as to which the different anglecs of rotation corresponds to different frictional force.Driving element is connected by main shaft with plow-shape base, and moving forward and backward, direction produces different frictional force, so as to effectively reduce the phenomenon of piezoelectric inertia linear actuator rollback, realizes the linear drives of driver.The utility model is simple in construction, easily fabricated, and pumping signal is easy to produce, and mechanical structure is simple, and structure is easy to connect.
Description
Technical field
The utility model belongs to small, precision actuation field.
Background technology
With the continuous development of society, precision positioning technology can realize micron, sub-micron, nanometer, sub- nanometer as one kind
The technology of yardstick positioning, receive the extensive concern of people；It has been related to technique manufacture, Industry Control, bioengineering, vapour
The multidisciplinary field such as car, therapeutic treatment, optical apparatus, accurate measurement, microelectronics, communication, material science, Aero-Space, is people
Class explores the critical problem that must be solved first during microcosmos.
With the development of material science, new function material proposes new solution for these applications, wherein, inverse pressure
The discovery of electrical effect and with superior function piezoelectric ceramics PZT material appearance cause Precision Piezoelectric driver research obtain
Extensive concern, and in precision actuation field show the prospect of being widely applied.Piexoelectric actuator is because small volume, weight
Gently, respond fast Microsecond grade, control characteristic is good, energy density is big, energy consumption is low, the features such as being unaffected by the magnetic field and obtained more extensive
Application.And inertia-type piezoelectric actuator is because it is in impulse stroke, resolution ratio, working frequency, movement velocity, frequency response, system
Cause this, there is unique advantage to have been developed as Precision Piezoelectric driving by stagnant ring draw degree of piezoelectric element etc.
A pith.
Existing piezoelectric inertia driver is using this Asymmetric Electric signal driving symmetric clamp of sawtooth signal mostly
Piezoelectric vibrator, but this actuator drive signal be not easy to produce, mechanism be not easily controlled, have it is larger retract motion etc. lack
Point.
In view of the problem of piezoelectric inertia driver is present at present, the utility model proposes one kind to become frictional force formula piezoelectric inertia
Linear actuator.Quickly become by the use of symmetrical wave electric signal (or asymmetrical wave electric signal) as pumping signal, piezoelectric vibrator element
Shape produces reciprocal different inertia impact torque, piezoelectric actuator is produced linear motion.Rotation is separated by by piezoelectric bimorph
Main body mirror-image arrangement, piezoelectric bimorph makes to produce different normal pressures between driver and contact surface when swinging, with reference to wedge shape
The design of pedestal, so as to obtain different frictional force, realize the linear motion of driver.
The content of the invention
The technical problems to be solved by the invention are：By clamping difference design, under ripple electric signal incentive action, obtain past
Multiple different inertia impact torque, and pass through the first piezoelectric bimorph (2) and the second piezoelectric bimorph (8) mirror-image arrangement, piezoelectricity
Twin lamella oscillator swings the different angle drives normal pressure different from contact surface generation, so as to change driver and contact surface
Between frictional force, while by the design of plow-shape base (12), change linear actuator and move forward and backward different motion direction
Frictional force, make driver orientation linear motion.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
Main body block (10) upper surface, geometric center and the side lower section of described piezoelectric inertia linear actuator are provided with screw thread
Hole, for set-up scale (5), holder body (4) and main shaft (11)；There is semi-circular shape groove side, for holder body (4) and master
Body block (10) is coordinated by the second screw (15) to be fixed, and holder body (4) and horizontal plane angle can be adjusted between 0 ° to 180 °；
First piezoelectric bimorph (2) and the second piezoelectric bimorph (8) specular are arranged in main body block (10) both sides；Second piezoelectric bimorph
Piece (8) is fixed by the first screw (13) and the second grip block (6) and holding piece (9)；Main shaft is ladder profile shaft, and one end is provided with ditch
Groove, the other end are provided with screwed hole, and main shaft (11) is fixed by the 3rd screw (17) with main body block (10)；Main shaft (11) and plow-shape bottom
Seat (12) is fixed by the 4th screw (19) and packing ring (16)；Scale (5) is fixed by screws in above main body block (10), to see
Examine driver operation straight-line displacement.
The change frictional force structure of described piezoelectric inertia linear actuator, it is to be rotated to an angle by holder body come real
Existing.There is semi-circular shape groove main body block (10) side, is matched somebody with somebody for holder body (4) with main body block (10) by the second screw (15)
Close and fix, holder body (4) and horizontal plane angle can be adjusted between 0 ° to 180 °, so that driver has a vertical side
To component, different angles corresponds to different component, so as to change the normal pressure between driver and contact surface, Jin Ergai
Frictional force is become.Driver uses the design of plow-shape base (12) simultaneously, driver is had different frictions when moving back and forth
Power, so as to realize that driver becomes the linear motion of frictional force.
Brief description of the drawings
Fig. 1 is general structure schematic diagram of the present utility model；
Fig. 2 is driver drive part structural representation of the present utility model；
Fig. 3 is main shaft of the present utility model and base assembling structure schematic diagram；
Embodiment
As shown in Figure 1, 2, the utility model is that one kind becomes frictional force formula piezoelectric inertia linear actuator, its main body block (10)
Screwed hole is provided with below upper surface and side, side has the design of annular groove, for adjusting the first piezoelectric bimorph (2) and the
The anglec of rotation of two piezoelectric bimorphs (8)；Holder body (4) upper surface and side are provided with screwed hole, the one of screw thread in side
The screwed hole of hole and main body block geometric center is assembled by screw to be fixed, and another screwed hole is fixed with annular groove by screw matches somebody with somebody
Close；Holding piece (9) one end is fixed by screws in the upper surface of holder body (4)；The other end passes through screw and packaged type
Second grip block (6) coordinates with piezoelectric bimorph to be fixed, and the second grip block (6) and the adjustable clamping of holding piece (9) formation are poor；
Scale (5) passes through the screwed hole secure fit above screw and main body block (10).Said structure forms the drive part of driver
Structure.During work, the design of annular groove can adjust the angle of piezoelectric bimorph and horizontal plane, by changing angle, Jin Ergai
The normal pressure become between driver and contact surface, so as to reach the purpose for changing frictional force.
As shown in figure 3, during assembling, the drive part structure of driver and main shaft (11) by screw fit fixation together with；
Main shaft bottom is provided with screwed hole.
Plow-shape base (12) upper surface geometric center is provided with tapped through hole, and plow-shape base (12) passes through screw with main shaft (11)
Assembling is fixed.During work, the power of driver drives plow-shape base to carry out straight-line displacement campaign by main shaft；By recording scale
(5) output displacement of driver is observed in the position of whole story state.
Claims (4)
1. one kind becomes frictional force formula piezoelectric inertia linear actuator, it includes plow-shape base (12), main shaft (11), the first grip block
(3) and the second grip block (6), the first mass (1) and the second mass (7), the first piezoelectric bimorph (2) and the second piezoelectricity are double
Chip (8), holder body (4), scale (5), holding piece (9), main body block (10), it is characterised in that：Described piezoelectric inertia is straight
Main body block (10) upper surface, geometric center and the side lower section of line drive are provided with screwed hole, for set-up scale (5), clamping
Main body (4) and main shaft (11)；There is semi-circular shape groove side, passes through the second screw for holder body (4) and main body block (10)
(15) coordinate and fix, holder body (4) and horizontal plane angle can be adjusted between 0 ° to 180 °；First piezoelectric bimorph (2) and
Second piezoelectric bimorph (8) specular is arranged in main body block (10) both sides；Second piezoelectric bimorph (8) passes through the first screw
(13) fixed with the second grip block (6) with holding piece (9)；Main shaft is ladder profile shaft, and one end is provided with groove, and the other end is provided with screw thread
Hole, main shaft (11) are fixed by the 3rd screw (17) with main body block (10)；Main shaft (11) passes through the 4th spiral shell with plow-shape base (12)
Follow closely (19) and packing ring (16) is fixed；Scale (5) is fixed by screws in above main body block (10), to observe driver operation straight line
Displacement.
2. change frictional force formula piezoelectric inertia linear actuator according to claim 1, it is characterised in that：Described driver
Using plow-shape base (12), change the frictional force between the reciprocal different motion direction base of linear actuator and contact surface；Utilize this
Kind base design, ensure that the stabilizer of driver, reduces the contact area between driver and contact surface.
3. change frictional force formula piezoelectric inertia linear actuator according to claim 1, it is characterised in that：Described driver
Piezoelectric bimorph is using specular arrangement, the first grip block (3) and the second grip block (6) and the holding piece (9) of packaged type
The fixed piezoelectric bimorph of assembling is connected by screw, it is poor to form adjustable clamping.
4. change frictional force formula piezoelectric inertia linear actuator according to claim 1, it is characterised in that：Described driver
Relatively low is required to ripple electric signal, asymmetrical wave electric signal can not only be used to drive, moreover it is possible to be driven using symmetrical wave electric signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720107135.7U CN206743125U (en) | 2017-01-14 | 2017-01-14 | One kind becomes frictional force formula piezoelectric inertia linear actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720107135.7U CN206743125U (en) | 2017-01-14 | 2017-01-14 | One kind becomes frictional force formula piezoelectric inertia linear actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206743125U true CN206743125U (en) | 2017-12-12 |
Family
ID=60556353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720107135.7U Expired - Fee Related CN206743125U (en) | 2017-01-14 | 2017-01-14 | One kind becomes frictional force formula piezoelectric inertia linear actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206743125U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063564A (en) * | 2018-01-12 | 2018-05-22 | 吉林大学 | A kind of novel friction type linear piezoelectric actuator |
| CN110061654A (en) * | 2019-04-25 | 2019-07-26 | 宁波大学 | A kind of change pretightning force stick-slip inertia linear actuator of abnormity texture friction regulation |
-
2017
- 2017-01-14 CN CN201720107135.7U patent/CN206743125U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110061654A (en) * | 2019-04-25 | 2019-07-26 | 宁波大学 | A kind of change pretightning force stick-slip inertia linear actuator of abnormity texture friction regulation |
| CN110061654B (en) * | 2019-04-25 | 2020-09-25 | 宁波大学 | Variable pretightening force stick-slip inertia linear driver for friction regulation of special-shaped texture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5134334A (en) | Ultrasonic linear motor | |
| CN105006254B (en) | Large-stroke quick-response X-Y micro-motion workbench with double displacement magnification | |
| CN206743125U (en) | One kind becomes frictional force formula piezoelectric inertia linear actuator | |
| CN203457075U (en) | Friction-variable type non-symmetrical clamping inertial piezoelectric rotation driver | |
| CN202565197U (en) | Asymmetric piezoelectric inertial driver | |
| CN104467525A (en) | Pretightening force adjustable inertial stick-slip drive trans-dimension precision locating platform | |
| CN104124893B (en) | Open flume type longitudinal-torsional compound ultrasonic motor | |
| CN106602927B (en) | A kind of resonance square-wave synchronous clamper piezoelectric linear motor | |
| CN205584047U (en) | Asymmetric rotatory inertia piezo -actuator with adjustable frictional force | |
| CN206490601U (en) | A kind of changing pressure formula piezoelectric inertia linear actuator | |
| CN106195556A (en) | A kind of XY θ plane three-freedom precision positioning platform | |
| CN206894533U (en) | Piezo-electric type multiple degrees of freedom hybrid-driven driver | |
| CN113726216B (en) | Non-same-frequency double-stator driving piezoelectric motor | |
| CN108429486A (en) | Combined flat surface 3-freedom ultrasonic motor oscillator and its driving method | |
| CN110798094B (en) | Piezoelectric linear precision driving device based on parasitic inertia principle | |
| CN113131783B (en) | Clamp-controlled inertia linear piezoelectric motor | |
| CN105827147B (en) | A kind of inertial piezoelectric motor | |
| CN203645575U (en) | Cantilever beam piezoelectric motor having energy acquisition function | |
| CN110855181B (en) | Rotary piezoelectric driving device based on asymmetric triangular hinge mechanism | |
| CN205666768U (en) | Piezoelectric motor with half falcate elastomer | |
| CN107124119A (en) | A kind of pair of butterfly stator piezoelectricity straight line driver | |
| CN104716864B (en) | Linear piezoelectric motor of inertia type middle-sized structure and control method thereof | |
| CN103560693B (en) | Cantilever beam piezoelectric motor with function of collecting energy | |
| TWM286995U (en) | Ultrasonic motor | |
| CN105553327A (en) | Piezoelectric vibration travelling mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20190114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |