CN206422712U - A kind of unidirectional inertial piezoelectric rotating driver of bearing-type - Google Patents
A kind of unidirectional inertial piezoelectric rotating driver of bearing-type Download PDFInfo
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- CN206422712U CN206422712U CN201720107134.2U CN201720107134U CN206422712U CN 206422712 U CN206422712 U CN 206422712U CN 201720107134 U CN201720107134 U CN 201720107134U CN 206422712 U CN206422712 U CN 206422712U
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- grip block
- clamping
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- type grip
- unilateral bearing
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Abstract
The utility model is related to a kind of unidirectional inertial piezoelectric rotating driver of bearing-type, belongs to Precision Piezoelectric actuation techniques field.Impact mass block is separately fixed at the free end of piezoelectric bimorph one, two, three, four by way of splicing, the bare terminal end of piezoelectric bimorph one, two, three, four is fixed on X-type grip block by bolt and clamping strip respectively, and clamping strip is as X-type grip block retained part size, X-type grip block is interference fitted with unilateral bearing inner ring, pointer is fixedly arranged on axle, slightly above X-type grip block, carrier is fixedly arranged at the top of rotary shaft, unilateral bearing interference fit is connected to rotary shaft lower end, and the interference of unilateral bearing outer ring is connected on bottom plate.Advantage is that structure is novel, be arranged symmetrically using four cantilevers, without clamping difference clamping piezoelectric bimorph as driving source, coordinate symmetrical electric signal and symmetrical frictional force, omit the circuit system of complexity, also optimize the poor regulative mode of the uncontrollable clamping of the poor structure of asymmetric clamping.
Description
Technical field
The utility model belongs to small, precision actuation field.
Background technology
In recent years, developing rapidly with nanometer technique, in biomedicine, precision optical machinery, microrobot, calculating
Machine, automatically control, the actuation techniques requirement of accurate measurement, accurate device, the technical field such as Ultra-precision Turning to microminiature machinery
More and more higher.The other actuation techniques of micro/nano level have become and closed extensively both at home and abroad as the core technology for exploring microscopic fields
The focus of note.The type of drive of traditional precision optical machinery typically uses mechanical structure formula, such as lead screw pair in fine turning lathe and
Still there is gap, rub, climb in rolling, rail plate, precision auger cotter mechanism etc., the even mechanical structure of superhigh precision
The problems such as row, thus mechanical structure formula obtain precision level be difficult to be lifted, developed under these conditions many new
Type of drive, such as electrostatic attraction, electromagnetic type, magnetostriction type, marmem formula and piezoelectric type etc..Piezoelectric ceramics
It is a kind of functional material for being widely used in precision actuation field, with low in energy consumption, excellent without electromagnetic interference, fast response time etc.
Point, turns into an important branch of precise driving device in recent years using piezoelectric as the driver of driving element.
Precision Piezoelectric drive device is widely studied in recent years.And inertia starter is by inertial mass and piezoelectricity member
The inertial impact force that part collective effect is produced is as the Piexoelectric actuator of driving force, and its mechanical structure is simple, movement velocity compared with
It hurry up, the mode for forming powered motion is easily controllable, and can realize the continuous motion of big stroke, can be with steady operation in high frequency
State, becomes the focus studied both at home and abroad in recent years.
The working mechanism majority for the inertial piezoelectric driver developed at present is to obtain power by automatically controlled or change mechanical structure
Poor powered motion, minority is to obtain the poor powered motion of power using frictional force control mode, and the research work of early stage, which is mainly, to be passed through
Electric signal driving, which produces different inertial impact forces, makes mechanism kinematic；With the extension of research work ambit, from tribology
Knowledge considers, it is proposed that control rotation direction using unilateral bearing, improves the research approach of bearing capacity.
In view of above-mentioned condition, the utility model proposes a kind of unidirectional inertial piezoelectric rotating driver of bearing-type.Using pair
Claim ripple electric signal as pumping signal, piezoelectric bimorph oscillator element rapid deformation produces reciprocal inertia impact torque, makes pressure
Electric drive produces rotary motion.By the unilateral bearing being interference fitted on bottom plate, the direction of rotation of driver is limited, so that
Energy can be stored by deformation by obtaining beryllium-bronze substrate, and be discharged in the movement direction, be improved by such mode
The output performance of driver.
The content of the invention
Technical problem to be solved in the utility model is：By setting unilateral bearing (7), encourage and make in symmetrical electric signal
Under, reciprocal identical inertia impact torque is obtained, but unilateral bearing (7) can limit the rotation on a direction, and when pressure
Electrical twining piece to the direction that can not be rotated deform upon when, electric excitation produce energy beryllium-bronze will be stored in the form of potential energy
In the deformation of substrate, so that exporting bigger moment of torsion when being rotated to usable rotational direction, and then more preferable bearing capacity is obtained.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
Mass (1) is separately fixed at the free end of piezoelectric bimorph one, two, three, four, the piezoelectricity by bonding mode
The bare terminal end of twin lamella one, two, three, four is fixed on X-type grip block (5) by bolt and clamping strip (2) respectively, and clamping strip
(2) as holding portion size with X-type grip block folder (5), X-type grip block (5) is interference fitted with unilateral bearing (7) inner ring, pointer
(4) it is fixedly arranged on axle (6), slightly above X-type grip block (5), carrier (3) is fixedly arranged at the top of rotary shaft (6), unilateral bearing
(7) interference fit is connected to rotary shaft (6) lower end, and unilateral bearing (7) outer ring interference is connected on bottom plate (9).
The piezoelectric rotary driver is in order to obtain more preferable load-carrying properties, using four symmetrical cantilevers of piezoelectric bimorph
Mode increases output torque.
The utility model has the advantages that structure is novel, the piezoelectric bimorph for being arranged symmetrically, being clamped without clamping difference using four cantilevers
Piece coordinates symmetrical electric signal and symmetrical frictional force as driving source, omits the circuit system of complexity, also optimizes asymmetric
The poor regulative mode of the uncontrollable clamping of the poor structure of clamping.
Brief description of the drawings
Fig. 1 is general structure schematic diagram of the present utility model；
Fig. 2 is drive part structural representation of the present utility model；
Fig. 3 is drive part structure schematic top plan view of the present utility model；
Embodiment
As shown in Figure 1, 2, 3, the utility model is a kind of unidirectional inertial piezoelectric rotating driver of bearing-type, mass 1
Piezoelectric bimorph one (8), two, three, four free end are separately fixed at by way of splicing, the piezoelectric bimorph one, two,
3rd, four bare terminal ends are fixed on X-type grip block (5) by bolt and clamping strip (2) respectively, and clamping strip (2) and X-type grip block
(5) retained part size is the same, i.e., poor in the absence of clamping, X-type grip block (5) is interference fitted with rotary shaft (6), and pointer (4) is solid
Knot is at the top of rotary shaft, and the motion for observing driver, carrier (3) is fixedly arranged at the top of rotary shaft (6), unilateral bearing
(7) interference fit is connected to rotary shaft (6) lower end, and unilateral bearing (7) outer ring interference is connected on bottom plate (9).
Plane is on driver rotary shaft where piezoelectric bimorph one (8) described in the utility model, two, three, four bare terminal ends
(6) axial line is in respectively symmetrical.
Piezoelectric bimorph one (8) described in the utility model, two, three, four bare terminal ends are solid by bolt and clamping strip (2) respectively
It is connected on X-type grip block (5), method of clamping is symmetric clamp.
Piezoelectric rotary driver described in the utility model is in order to obtain more preferable load-carrying properties, using four symmetrical cantilevers
Mode increases output torque.
When driver is encouraged in symmetrical electric signal first half cycle, piezoelectric vibrator can be deformed toward the clockwise direction, due to used
The presence of property gauge block (1), beryllium-bronze substrate can produce a power clockwise, and one has four pieces of piezoelectric bimorphs,
Each piece all produces the same size, clockwise power, and the compound actions of these power can make one moment of torsion of generation, moment of torsion with
Rotary shaft (6) is transferred on unilateral bearing (7), and unilateral bearing (7) may only be rotated clockwise, and now driver can be to
A small angle rotationally clockwise；When it is the later half cycle to encourage electric signal, piezoelectric vibrator can be counterclockwise
Deformation, due to the presence of inertial mass (1), beryllium-bronze substrate can produce a power counterclockwise, although generate
Power, but this power is limited by unilateral bearing (6), driver can not rotate counterclockwise；Piezoelectricity when can not rotate
This partial capability that twin lamella is produced is laid in the deformation of beryllium-bronze substrate, when beryllium-bronze substrate again clockwise
During rotation, this portion of energy will be released, so as to obtain bigger driving force so that this driver has more preferable output
Load performance.
Claims (1)
1. a kind of unidirectional inertial piezoelectric rotating driver of bearing-type, it includes impact mass block (1), clamping strip (2), carrier
(3), pointer (4), X-type grip block (5), rotary shaft (6), unilateral bearing (7), piezoelectric bimorph (8), bottom plate (9), its feature exist
In：Mass (1) is separately fixed at the free end of piezoelectric bimorph one, two, three, four, the piezoelectric bimorph by bonding mode
The bare terminal end of piece one, two, three, four is fixed on X-type grip block (5) by bolt and clamping strip (2) respectively, and clamping strip (2) and X
Type grip block (5) retained part size is the same, and X-type grip block (5) is interference fitted with unilateral bearing (7) inner ring, pointer (4) consolidation
On axle (6), slightly above X-type grip block (5), carrier (3) is fixedly arranged at the top of rotary shaft (6), and unilateral bearing (7) interference is matched somebody with somebody
Conjunction is connected to rotary shaft (6) lower end, and unilateral bearing (7) outer ring interference is connected on bottom plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720107134.2U CN206422712U (en) | 2017-01-14 | 2017-01-14 | A kind of unidirectional inertial piezoelectric rotating driver of bearing-type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720107134.2U CN206422712U (en) | 2017-01-14 | 2017-01-14 | A kind of unidirectional inertial piezoelectric rotating driver of bearing-type |
Publications (1)
| Publication Number | Publication Date |
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| CN206422712U true CN206422712U (en) | 2017-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720107134.2U Expired - Fee Related CN206422712U (en) | 2017-01-14 | 2017-01-14 | A kind of unidirectional inertial piezoelectric rotating driver of bearing-type |
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| CN (1) | CN206422712U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306545A (en) * | 2018-01-10 | 2018-07-20 | 中国科学院合肥物质科学研究院 | Square shape arranges the rotary piezo-electric motor and control methods of four piezoelectrics free end driving |
| CN109286334A (en) * | 2018-10-09 | 2019-01-29 | 浙江师范大学 | A kind of cantilever type piezoelectric two degrees of freedom driver of magnetic rheologic magnetic coupling clamp |
| CN110445415A (en) * | 2019-08-06 | 2019-11-12 | 合肥工业大学 | A kind of rotary piezoelectric driver |
-
2017
- 2017-01-14 CN CN201720107134.2U patent/CN206422712U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306545A (en) * | 2018-01-10 | 2018-07-20 | 中国科学院合肥物质科学研究院 | Square shape arranges the rotary piezo-electric motor and control methods of four piezoelectrics free end driving |
| CN108306545B (en) * | 2018-01-10 | 2024-01-26 | 中国科学院合肥物质科学研究院 | Rotary piezoelectric motor driven by free ends of four piezoelectric bodies arranged in shape of Chinese character 'kou' and control method |
| CN109286334A (en) * | 2018-10-09 | 2019-01-29 | 浙江师范大学 | A kind of cantilever type piezoelectric two degrees of freedom driver of magnetic rheologic magnetic coupling clamp |
| CN110445415A (en) * | 2019-08-06 | 2019-11-12 | 合肥工业大学 | A kind of rotary piezoelectric driver |
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| Date | Code | Title | Description |
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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: 20170818 Termination date: 20190114 |