CN205666770U - Variable damping presses electric drive motor - Google Patents
Variable damping presses electric drive motor Download PDFInfo
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- CN205666770U CN205666770U CN201620565854.9U CN201620565854U CN205666770U CN 205666770 U CN205666770 U CN 205666770U CN 201620565854 U CN201620565854 U CN 201620565854U CN 205666770 U CN205666770 U CN 205666770U
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- elastic material
- circular disk
- rotating circular
- resilient material
- piezoelectric vibrator
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Abstract
The utility model relates to a variable damping presses electric drive motor, including revolving stage, piezoelectric vibrator, base and compound cantilever, wherein the revolving stage includes rotation axis and rotating circular disk, piezoelectric vibrator's both ends respectively fixed connection on rotating circular disk and compound cantilever, the lower surface vertical of piezoelectric vibrator and rotating circular disk, the bonding face of piezoceramics and elastic medium board is followed the rotating circular disk diameter arranges that compound cantilever just comprises with the high elastic material laminating that rubs low friction elastic material for thin - type structure, and low friction elastic material and the high elastic material that rubs are thin - type structure and measure -alike, and low friction elastic material's coefficient of friction is less than the high elastic material's of friction coefficient of friction, and low friction elastic material is parallel with the bonding face of elastic material 2 and elastic material 3 board with the high elastic material's that rubs laminating face, rotation axis and base constitution revolute pair, the utility model has the advantages of long service life, required precision hang down.
Description
Technical field
This utility model belongs to Piezoelectric Driving field, is specifically related to a kind of mutative damp piezoelectric drive motors.
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, biomedicine is all strong in the urgent need to tolerance, the driver of simple in construction.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, in recent years this research
Achieved with a series of achievement, such as memory alloy actuator, piezoelectric effect motor, electrostriction motor and magnetostrictive motor
Deng.Wherein, due to piezoelectric (PZT) have easy to control, power density is big, displacement resolution is high, frequency response is good, do not send out
Heat, without advantages such as electromagnetic interference, therefore piezo-electric type precision actuation technology has become domestic and international primary study direction.But, existing
Piezoelectric motor there is the problem that requirement on machining accuracy is higher, service life is short, and mostly be rigidity between parts and coordinate, abrasion
After cannot work.
Summary of the invention
The problems such as the motor movement life-span is short, requirement on machining accuracy is higher are driven, it is proposed that one for solving current miniature piezoelectric
Planting mutative damp piezoelectric drive motors, this motor is made up of turntable, piezoelectric vibrator, base and composite cantilever, and piezoelectric vibrator is being handed over
Producing flexural deformation under the effect of time-dependent current, the bending of piezoelectric vibrator drives composite cantilever bending, rubs in conjunction with composite cantilever difference
Wipe the effect of the elastomeric material of coefficient, motor directional rotating.This utility model, compared with current piezoelectric motor, has service life
The advantages such as long, required precision is low.
To achieve these goals, this utility model is by the following technical solutions:
This utility model one mutative damp piezoelectric drive motors includes turntable, piezoelectric vibrator and base, and its feature also exists
In including composite cantilever, wherein said turntable includes that rotary shaft and rotating circular disk, described rotary shaft and described rotating circular disk are solid
Fixed connection, the axis of described rotary shaft is perpendicular to the upper surface of described rotating circular disk；Described piezoelectric vibrator is by piezoelectric ceramics and bullet
Property substrate bonding constitute, one end of four described piezoelectric vibrators is fixing with described rotating circular disk respectively to be connected, each described piezoelectricity
The other end of oscillator is fixedly connected with a described composite cantilever, and described piezoelectric vibrator is vertical with the lower surface of rotating circular disk, institute
The bonding plane stating piezoelectric ceramics and elastic base plate is arranged along described rotating circular disk diameter；Described composite cantilever be sheet type structure and
It is made up of low friction resilient material and high friction resilient material lamination, described low friction resilient material and described high friction resilient material
Material be all sheet type structure and equivalently-sized, and the coefficient of friction of described low friction resilient material is less than described high friction resilient material
Coefficient of friction, the lamination face of described low friction resilient material and high friction resilient material and described piezoelectric ceramics and elastic base plate
Bonding plane parallel, seen from above, the exterior normal of each described low friction resilient material around rotary shaft in counterclockwise；Described rotation
Rotating shaft and described base constitute revolute pair.
The quantity of the described composite cantilever of described piezoelectric vibrator and equivalent can be L, and L is more than or equal to 1.
During work, base is fixed, and utilizes the gravity of turntable to make composite cantilever and base contacts.Piezoelectric vibrator is as power
Source occurs cyclic bending to deform under the effect of alternating voltage, and piezoelectric vibrator drives composite cantilever to produce bending.As it is shown on figure 3,
Piezoelectric vibrator curvature movement to the left are limit on the left position to peak swing position, as shown by the solid line；Piezoelectric vibrator bends to the right fortune
Moving peak swing position is limit on the right-right-hand limit position, shown in dotted line.As shown in the upside figure in Fig. 3, piezoelectric vibrator is from limit on the left
Position moves to limit on the right-right-hand limit position, and the low friction resilient material contact base that coefficient of friction is less, composite cantilever is shaken by piezoelectricity
Son active force to the right moves right, and rotating circular disk is rotated clockwise by piezoelectric vibrator counteracting force to the left, and this process claims
For first half term；And then, as shown in the downside figure in Fig. 3, piezoelectric vibrator moves to limit on the left position from limit on the right-right-hand limit position, contact
The material of working face is become, from the low friction resilient material that coefficient of friction is less, the high friction resilient material that coefficient of friction is bigger,
Composite cantilever is by piezoelectric vibrator active force to the left to left movement, and rotating circular disk is inverse by piezoelectric vibrator counteracting force to the right
Hour hands rotate, and this process is referred to as the second half.The second half compared to first half term, the frictional force that composite cantilever is subject to then move relatively greatly away from
From little, owing to during extreme position, the amplitude of piezoelectric vibrator is constant, therefore the angle that rotates counterclockwise of the second half rotating circular disk is more than front
Half way rotating circular disk rotate clockwise angle.First half term adds the cycle of operation that the second half is motor, with rotating circular disk is
Benchmark, motor rotates counterclockwise.
Accompanying drawing explanation
Fig. 1 is the installation diagram of this utility model a kind of mutative damp piezoelectric drive motors.
Fig. 2 is the structural representation of composite cantilever in this utility model.
Local motion schematic diagram when Fig. 3 is utility model works.
Detailed description of the invention
See figures.1.and.2, this utility model one mutative damp piezoelectric drive motors, including turntable 1, piezoelectric vibrator 2,
Base 3 and composite cantilever 4, wherein said turntable 1 includes rotary shaft 11 and rotating circular disk 12, described rotary shaft 11 and described rotation
Turning the fixing connection of disk 12, the axis of described rotary shaft 11 is perpendicular to the upper surface of described rotating circular disk 12；Described piezoelectric vibrator 2
By piezoelectric ceramics 21 with elastic base plate 22 is bonding constitutes, one end of four described piezoelectric vibrators 2 respectively with described rotating circular disk 12
Fixing connecting, the other end of each described piezoelectric vibrator 2 is fixedly connected with a described composite cantilever 4, described piezoelectric vibrator 2 with
The lower surface of rotating circular disk 12 is vertical, and the bonding plane of described piezoelectric ceramics 21 and elastic base plate 22 is along described rotating circular disk 12 diameter
Arrange；Described composite cantilever 4 for sheet type structure and is made up of low friction resilient material 41 and high friction resilient material 42 lamination,
Described low friction resilient material 41 and described high friction resilient material 42 are all sheet type structure and equivalently-sized, described low friction
The coefficient of friction of elastomeric material 41 is less than the coefficient of friction of described high friction resilient material 42, described low friction resilient material 41 He
The lamination face of high friction resilient material 42 is parallel with the bonding plane of described piezoelectric ceramics 21 and elastic base plate 22, seen from above,
The exterior normal of each described low friction resilient material 41 around rotary shaft 11 in counterclockwise；Described rotary shaft 11 and described base 3 structure
Become revolute pair.
During work, piezoelectric vibrator 2 produces flexural deformation under the effect of alternating current, and the bending of piezoelectric vibrator 2 drives multiple
Close cantilever 4 to bend, in conjunction with the effect of the elastomeric material of composite cantilever 4 different coefficients of friction, motor directional rotating.
Claims (2)
1. a mutative damp piezoelectric drive motors, including turntable (1), piezoelectric vibrator (2) and base (3), is further characterized in that
Including composite cantilever (4), wherein:
Described turntable (1) includes rotary shaft (11) and rotating circular disk (12), described rotary shaft (11) and described rotating circular disk
(12) fixing connection, the axis of described rotary shaft (11) is perpendicular to the upper surface of described rotating circular disk (12)；Described piezoelectric vibrator
(2) by piezoelectric ceramics (21) with elastic base plate (22) is bonding constitutes, one end of four described piezoelectric vibrators (2) respectively with described rotation
Turning the fixing connection of disk (12), the other end of each described piezoelectric vibrator (2) is fixedly connected with a described composite cantilever (4),
Described piezoelectric vibrator (2) is vertical with the lower surface of rotating circular disk (12), described piezoelectric ceramics (21) and elastic base plate (22) viscous
Junction is arranged along described rotating circular disk (12) diameter；Described composite cantilever (4) is sheet type structure and by low friction resilient material
(41) constitute with high friction resilient material (42) lamination, described low friction resilient material (41) and described high friction resilient material
(42) being all sheet type structure and equivalently-sized, the coefficient of friction of described low friction resilient material (41) is less than described high friction bullet
The coefficient of friction of property material (42), the lamination face of described low friction resilient material (41) and high friction resilient material (42) is with described
Piezoelectric ceramics (21) is parallel with the bonding plane of elastic base plate (22), seen from above, each described low friction resilient material (41)
Exterior normal around rotary shaft (11) in counterclockwise；Described rotary shaft (11) and described base (3) constitute revolute pair.
A kind of mutative damp piezoelectric drive motors the most according to claim 1, it is characterised in that: described piezoelectric vibrator (2) and
The quantity of the described composite cantilever (4) of equivalent is L, and L is more than or equal to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620565854.9U CN205666770U (en) | 2016-06-12 | 2016-06-12 | Variable damping presses electric drive motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620565854.9U CN205666770U (en) | 2016-06-12 | 2016-06-12 | Variable damping presses electric drive motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205666770U true CN205666770U (en) | 2016-10-26 |
Family
ID=57154363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620565854.9U Withdrawn - After Issue CN205666770U (en) | 2016-06-12 | 2016-06-12 | Variable damping presses electric drive motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205666770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846715A (en) * | 2016-06-12 | 2016-08-10 | 吉林大学 | Variable-damping piezoelectric driving motor |
-
2016
- 2016-06-12 CN CN201620565854.9U patent/CN205666770U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846715A (en) * | 2016-06-12 | 2016-08-10 | 吉林大学 | Variable-damping piezoelectric driving motor |
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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: 20171027 |