CN205666768U - Piezoelectric motor with half falcate elastomer - Google Patents
Piezoelectric motor with half falcate elastomer Download PDFInfo
- Publication number
- CN205666768U CN205666768U CN201620566001.7U CN201620566001U CN205666768U CN 205666768 U CN205666768 U CN 205666768U CN 201620566001 U CN201620566001 U CN 201620566001U CN 205666768 U CN205666768 U CN 205666768U
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- crescent shape
- rotor
- piezoelectric vibrator
- elastomer
- stator
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The utility model relates to a piezoelectric motor with half falcate elastomer, include: rotor, piezoelectric vibrator, stator and half falcate elastomer, wherein: the rotor is the cylinder structure, and the centre has arranged that a cylindrical through hole is the rotor locating hole, piezoelectric vibrator by the elastic medium board with paste above that the piezoelectric sheets material on surface and constitute, piezoelectric vibrator's one end is connected with the side of rotor, and the other end is the free end, half falcate elastomer is the cylinder structure that upper and lower bottom surface is half falcate, pastes the lower surface of piezoelectric vibrator free end, the stator by the stator disc and with it looks vertically center pin constitute, rotor locating hole on the rotor with center pin on the stator constitutes the revolute pair. Piezoelectric vibrator universal base warp the vibration that provides the vertical direction, and the elastic deformation through half falcate elastomer produces the driving force on the circumferencial direction, has advantages such as simple structure, the required precision is low, tolerance nature is strong, power density is big.
Description
Technical field
This utility model belongs to Piezoelectric Driving field, is specifically related to a kind of piezo-electric motor with half-crescent shape elastomer.
Background technology
In recent years, along with the fast development of nanometer technique, in optical engineering, micro-electronic manufacturing, aeronautical and space technology, surpass
The research of the technical fields such as precision optical machinery manufactures, biomedical is all strong, high power density in the urgent need to simple in construction, tolerance
Driver.Traditional motor power per weight ratio is low, and motor needs deceleration device speed change after running up, cause biography
Dynamic system complex.Obviously, prior art can not meet the growth requirement of industrial circle.
Along with the development of science and technology, people develop the New-type electric machine utilizing functional material to constitute and drive to realize ultraprecise,
This research is achieved with a series of achievement in recent years, such as memory alloy actuator, piezoelectric effect motor, electrostriction motor and magnetic
Cause telescope motor etc..Wherein, owing to piezoelectric (PZT) has, good linearity, easy to control, power density be big, displacement resolution
High, frequency response is good, do not generate heat, without advantages such as electromagnetic interference, therefore piezo-electric type precision actuation technology has become domestic and international emphasis
Research direction.But, existing piezoelectric motor configuration is complex, and requirement on machining accuracy is higher, and mostly is firm between parts
Property coordinate, cannot work after abrasion, therefore design strong, the wear-resistant microminiature piezo-electric motor of a kind of simple in construction, tolerance
Particularly significant.
Summary of the invention
In order to solve tradition, motor power density is little, structure is complicated, and existing piezoelectric motor configuration is complicated, tolerance
Difference etc. technical problem, it is proposed that a kind of piezo-electric motor with half-crescent shape elastomer, this driver by rotor, piezoelectric vibrator,
Stator and half-crescent shape elastomer are constituted, and described piezoelectric vibrator provides the excitation of vertical direction, by half-crescent shape elastomer
Elastic deformation produces the driving force on circumferencial direction, thus rotor driven rotates.This utility model and existing piezo-electric motor phase
The advantages such as ratio, owing to there is elastic construction, also can normally work after abrasion, have simple in construction, and tolerance is strong；With traditional step
Entering motor to compare, this utility model has simple in construction, power density height, generates heat less, without advantages such as Electromagnetic Interference.
To achieve these goals, this utility model is by the following technical solutions:
A kind of piezo-electric motor with half-crescent shape elastomer of this utility model, including: rotor, piezoelectric vibrator, stator and
Half-crescent shape elastomer, wherein: described rotor is column structure, intermediate arrangement has a cylindrical hole i.e. rotor fixed position hole；Described
Piezoelectric vibrator is made up of elastic base plate and the piezoelectric sheet material being attached to its upper surface；One end of described piezoelectric vibrator is by welding
Mode be connected with the side of rotor, the other end is free end；Described half-crescent shape elastomer be upper bottom surface be half-crescent shape
Column structure, side is surrounded by the different curved surface of two curvature and a mounting plane, and two of which surface intersection is in always
Line, intersection is contact straight line；Mounting plane on described half-crescent shape elastomer is pasted onto described pressure by the way of gluing
Short transverse perpendicular with upper bottom surface on the lower surface of electric tachometer indicator free end, and described half-crescent shape elastomer and described pressure
The length direction of electric tachometer indicator is consistent, to produce maximum turning moment；Described each half-crescent shape elastomer bending direction is all suitable
Clockwise or be all counterclockwise；Contact straight line on described each half-crescent shape elastomer is at grade；Described fixed
Son is made up of stator disk and perpendicular central shaft；Rotor fixed position hole on described rotor and the center on described stator
The contact straight line that axle is constituted in revolute pair, and described half-crescent shape elastomer contacts with the upper surface of described stator disk.
The employing of described piezoelectric vibrator is pasted onto, by a piece of piezoelectric sheet material, the single-chip piezoelectricity formed on elastic base plate and shakes
Son, or use be pasted onto, by two panels piezoelectric sheet material, the bi-morph piezo-electric oscillator that elastic base plate both sides are formed.
During work, stator is fixed, the upper surface phase contacting straight line and stator disk on described half-crescent shape elastomer
Contact, applies driving voltage on piezoelectric vibrator, the upper surface output torque of rotor.Described piezoelectric vibrator applies high frequency hand over
Stream voltage brings it about cyclic bending deformation, and the free end of piezoelectric vibrator produces the excitation of vertical direction, when piezoelectric vibrator drives
Half-crescent shape elastomer is when upper extreme position moves downward, and described half-crescent shape elastomer is squeezed generation elastic deformation,
Now increasing due to normal pressure, frictional force is the biggest, and the contact straight line on described half-crescent shape elastomer contacts with work surface
Sliding will not occur, and it is same that the free end of the piezoelectric vibrator being therefore connected with described half-crescent shape elastomer upper end vibrates downwards
Time can produce the positive-displacement of a horizontal direction, i.e. moved to limit inferior " position 2 " by limit superior " position 1 ", in having
The restriction of mandrel, described piezoelectric vibrator can produce a forward corner by rotor driven；When piezoelectric vibrator drives half-crescent shape elastic
Body is when lower limit position moves upward, and now normal pressure reduces suddenly the most temporary disappearance, and described half-crescent shape is elastic
Body gradually restores to the original state, and even disappears owing to frictional force reduces during restoring to the original state, i.e. institute while upwards vibration
State the mounting plane of half-crescent shape elastomer upper end produce under the common effect of elastic-restoring force and frictional force one small
Upstream shift, described half-crescent shape elastomer lower end contact straight line generation sliding produce a total positive-displacement, i.e. by under
The limit " position 2 " moves to limit superior " position 3 ", and owing to there being the restriction of central shaft, described piezoelectric vibrator can produce by rotor driven
One total forward corner, completes a cycle of operation, in the process, half-crescent shape elastomer contacts with working face
One step-length of contact straight-ahead motion, under alternating voltage effect, it is achieved the stepper drive ability of orientation.
Accompanying drawing explanation
Fig. 1 is a kind of piezoelectric motor configuration schematic diagram with half-crescent shape elastomer of this utility model.
Fig. 2 is that relation schematic diagram installed by a kind of each part of piezo-electric motor with half-crescent shape elastomer of this utility model.
Fig. 3 is the motion schematic diagram of a kind of directional driver with half-crescent shape elastomer of this utility model.
Detailed description of the invention
With reference to Fig. 1, Fig. 2 and Fig. 3, this utility model is a kind of has the piezo-electric motor of half-crescent shape elastomer by rotor 1, six
The half-crescent shape elastomer 4 of the piezoelectric vibrator 2 of individual same specification, stator 3 and six same specifications is constituted, wherein:
Described rotor 1 is six prism structures, and intermediate arrangement has a cylindrical hole i.e. rotor fixed position hole 11；Described piezoelectric vibrator
2 are made up of elastic base plate 21 and the piezoelectric sheet material 22 being attached to its upper surface；One end of described piezoelectric vibrator 2 is by welding
Mode is connected with the side of rotor 1, and the other end is free end；Described half-crescent shape elastomer 4 is half-crescent shape for upper bottom surface
Column structure, side is surrounded by the different curved surface of two curvature and a mounting plane 41, and two of which surface intersection is in one
Straight line, intersection is contact straight line 42；Mounting plane 41 on described half-crescent shape elastomer 4 is pasted onto by the way of gluing
The lower surface of described piezoelectric vibrator 2 free end, and short transverse perpendicular with upper bottom surface on described half-crescent shape elastomer 4
Consistent with the length direction of described piezoelectric vibrator 2；Described six half-crescent shape elastomer 4 bending directions are all clockwise；
Contact straight line 42 on described six half-crescent shape elastomers 4 is at grade；Described stator 3 is by stator disk 31 and therewith
Perpendicular central shaft 32 forms；Rotor fixed position hole 11 on described rotor 1 constitutes rotation with the central shaft 32 on described stator 3
Contact straight line 42 in pair, and described half-crescent shape elastomer 4 contacts with the upper surface of described stator disk 31.
Described piezoelectric vibrator 2 uses and is pasted onto on elastic base plate 21, by a piece of piezoelectric sheet material 22, the single-chip pressure formed
Electric tachometer indicator.
During work, being fixed by stator 3, the contact straight line 42 on described half-crescent shape elastomer 4 is upper with stator disk 31
Surface contacts.Described piezoelectric vibrator 2 applies high-frequency ac voltage and brings it about cyclic bending deformation, pass through half-crescent shape
The elastic deformation of elastomer 4 produces the driving force on circumferencial direction.
Claims (2)
1. there is a piezo-electric motor for half-crescent shape elastomer, including: rotor (1), the piezoelectricity of more than one same specification shake
Son (2) and stator (3), it is characterised in that also include the half-crescent shape elastomer (4) identical with described piezoelectric vibrator (2) quantity,
Wherein: described rotor (1) is column structure, intermediate arrangement has a cylindrical hole i.e. rotor fixed position hole (11)；Described piezoelectric vibrator
(2) by elastic base plate (21) be attached to the piezoelectric sheet material (22) of its upper surface and form；One end of described piezoelectric vibrator (2) with
The side of rotor (1) connects, and the other end is free end；Described half-crescent shape elastomer (4) be upper bottom surface be half-crescent shape
Column structure, side is surrounded by the different curved surface of two curvature and a mounting plane (41), and two of which surface intersection is in one
Straight line, intersection is contact straight line (42)；Mounting plane (41) on described half-crescent shape elastomer (4) is pasted onto described piezoelectricity
Short transverse the most perpendicular with upper bottom surface on the lower surface of oscillator (2) free end, and described half-crescent shape elastomer (4) and institute
The length direction stating piezoelectric vibrator (2) is consistent；Described each half-crescent shape elastomer (4) bending direction is all clockwise or same
For counterclockwise；Contact straight line (42) on described each half-crescent shape elastomer (4) is at grade；Described stator (3)
It is made up of stator disk (31) and perpendicular central shaft (32)；Rotor fixed position hole (11) on described rotor (1) and institute
State the central shaft (32) on stator (3) and constitute the contact straight line (42) in revolute pair, and described half-crescent shape elastomer (4) and institute
The upper surface stating stator disk (31) contacts.
A kind of piezo-electric motor with half-crescent shape elastomer the most according to claim 1, it is characterised in that: described piezoelectricity
Oscillator (2) uses and is pasted onto the upper single-chip piezoelectric vibrator formed of elastic base plate (21) by a piece of piezoelectric sheet material (22), or
Use and be pasted onto, by two panels piezoelectric sheet material (22), the bi-morph piezo-electric oscillator that elastic base plate (21) both sides are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620566001.7U CN205666768U (en) | 2016-06-12 | 2016-06-12 | Piezoelectric motor with half falcate elastomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620566001.7U CN205666768U (en) | 2016-06-12 | 2016-06-12 | Piezoelectric motor with half falcate elastomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205666768U true CN205666768U (en) | 2016-10-26 |
Family
ID=57155242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620566001.7U Withdrawn - After Issue CN205666768U (en) | 2016-06-12 | 2016-06-12 | Piezoelectric motor with half falcate elastomer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205666768U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958861A (en) * | 2016-06-12 | 2016-09-21 | 吉林大学 | Piezoelectric motor equipped with half-falcate elastic bodies |
| CN106849599A (en) * | 2017-04-23 | 2017-06-13 | 吉林大学 | A kind of electromagnet-friction Piezoelectric anisotropy formula energy collecting device |
-
2016
- 2016-06-12 CN CN201620566001.7U patent/CN205666768U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958861A (en) * | 2016-06-12 | 2016-09-21 | 吉林大学 | Piezoelectric motor equipped with half-falcate elastic bodies |
| CN105958861B (en) * | 2016-06-12 | 2017-10-24 | 吉林大学 | A kind of piezo-electric motor with half-crescent shape elastomer |
| CN106849599A (en) * | 2017-04-23 | 2017-06-13 | 吉林大学 | A kind of electromagnet-friction Piezoelectric anisotropy formula energy collecting device |
| CN106849599B (en) * | 2017-04-23 | 2023-04-07 | 吉林大学 | Electromagnetic friction piezoelectric combined type energy collector |
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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: 20171024 |