CN107947627A - A kind of more piezoelectric vibrator bidirectional drives - Google Patents
A kind of more piezoelectric vibrator bidirectional drives Download PDFInfo
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- CN107947627A CN107947627A CN201810029534.5A CN201810029534A CN107947627A CN 107947627 A CN107947627 A CN 107947627A CN 201810029534 A CN201810029534 A CN 201810029534A CN 107947627 A CN107947627 A CN 107947627A
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- foot bearing
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 11
- 210000001699 lower leg Anatomy 0.000 claims abstract description 81
- 210000002414 leg Anatomy 0.000 claims abstract description 67
- 239000000463 material Substances 0.000 claims abstract description 41
- 239000002783 friction material Substances 0.000 claims description 26
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 10
- 125000004122 cyclic group Chemical group 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 239000000919 ceramic Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
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Abstract
The present invention relates to a kind of more piezoelectric vibrator bidirectional drives, including：Piezoelectric vibrator, the first support leg, the second support leg, the first commutation piezoelectric vibrator, the second commutation piezoelectric vibrator, the first foot bearing and crus secunda bearing are driven, wherein：Support leg is arranged in driving piezoelectric vibrator lower surface, and commutation piezoelectric vibrator is connected in support leg, and foot bearing is connected to support leg free end.Three piezoelectric vibrators are applied with out of phase alternating voltage respectively and brings it about cyclic bending deformation, drives bipod bearing close to each other or remote.In foot bearing moving process, piezoelectric vibrator drives support leg and foot bearing that certain twisting occurs, promote the material of different coefficients of friction on foot bearing to be in contact respectively with working face, so that foot bearing produces different displacements, finally realize the displacement of driver.The present invention realizes bi-directional drive, and has the advantages that the service life that simple in structure, maintenance cost is low, the requirement to working face is relatively low and extends piezoelectric ceramics in driver.
Description
Technical field
The invention belongs to Piezoelectric Driving field, and in particular to a kind of more piezoelectric vibrator bidirectional drives.
Background technology
Traditional driver has the characteristics that impulse stroke is big, movement velocity is fast and bearing capacity is big, but legacy drive
Bulky and Motion Resolution rate is not high.It is contemporary with scientific technological advance, micromachine, accurate measurement and biologic medical are all
The requirement of higher is proposed to mini drive, it is desirable to which mini drive must realize small size and high accuracy.New micro drive
Dynamic device is mainly driven using marmem, magnetostriction materials, electrostriction material and piezoelectric ceramics.Wherein, press
Electric drive mini drive has the advantages that positioning accuracy height, fast response time, electromagnetism interference, small power consumption and driving force are big,
Existing piezoelectric actuator mainly has the driving of looper type and two class of inertial drive, but this two quasi-drivers structure is complex, more
It is high to operating environment requirements with working face rigid contact, component is easily lost and is not easy to replace.
The content of the invention
It is complex in order to solve current piezoelectric actuator structure, more with working face rigid contact, to operating environment requirements
Height, is easily lost the problem of component is not easy to replace, it is proposed that a kind of more piezoelectric vibrator bidirectional drives, the driver is by driving piezoelectricity
Oscillator, the first support leg, the second support leg, the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator, the first foot bearing and the
Two foot bearings form.Wherein described driving piezoelectric vibrator is pasted onto on Rectangular Elastic matrix by piezoelectric sheet material to be formed, described
First support leg and the second support leg for identical rectangular tab component and have certain elasticity, described first support leg one end
It is free end to be connected to and drive piezoelectric vibrator lower surface, the other end, and the second support leg one end end is connected to driving piezoelectricity and shakes
Sub- lower surface, the other end are free end, and the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator are connected to first
In support leg and the second support leg, the first foot bearing and crus secunda bearing are structure, size and the identical circle of material
Cylindrical component, the first foot bearing is combined by the first low friction coefficient materials and the first high coefficient of friction material, described
The free end of first support leg is connected with the first foot bearing and the high coefficient of friction material of the first foot bearing is arranged in outside, described
The free end of second support leg is connected with crus secunda bearing and the high coefficient of friction material of crus secunda bearing is arranged in inner side.It will drive
Dynamic device is placed on working face, and the first foot bearing and crus secunda bearing are contacted with working face.Shake in three piezoelectricity
Apply out of phase alternating voltage on son respectively and bring it about cyclic bending deformation, drive that wherein bipod bearing is close to each other or phase
It is mutually remote.In foot bearing moving process, foot bearing is subject to the frictional force opposite with moving direction, and frictional force makes foot bearing and branch
Certain twisting occurs for support leg, promotes the material of different coefficients of friction on foot bearing to be in contact respectively with working face, so that foot
Bearing produces different displacements, finally realizes the displacement of driver.The positive mobile working principle schematic of the driver
As shown in Figure 2：The left half-sections of driver the first foot bearing and crus secunda bearing are respectively the first high coefficient of friction material
With the second high coefficient of friction material, right half-sections are respectively the first low friction coefficient materials and the second low friction coefficient materials,
When piezoelectric vibrator is not powered on, driver is in nature, and support leg and foot bearing do not twist, as shown in Fig. 2 (a)；When
When driving piezoelectric vibrator energization generation concave change shape, the first foot bearing and crus secunda bearing is driven to be located remotely from each other, while the first commutation
Piezoelectric vibrator and the second commutation piezoelectric vibrator are subject to drive with the alternating voltage of phase with driving piezoelectric vibrator driving voltage, make support
Certain twisting occurs for leg and foot bearing, cause the first foot bearing the first high coefficient of friction material and crus secunda bearing it is second low
Friction coefficient material is contacted with working face, at this time the skidding distance of crus secunda bearing be significantly greater than the sliding of the first foot bearing away from
From as shown in Fig. 2 (b)；When driving piezoelectric vibrator energization to produce convex deformation, drive the first foot bearing and crus secunda bearing mutual
It is close, while the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator are subject to alternating voltage to drive, and make support leg and foot bearing
Certain twisting occurs, causes the first low friction coefficient materials of the first foot bearing and the second great friction coefficient material of crus secunda bearing
Material is contacted with working face, and the skidding distance of the first foot bearing is significantly greater than the skidding distance of crus secunda bearing at this time, such as Fig. 2 (c)
It is shown；A working cycles are completed when piezoelectric vibrator turns again to equilbrium position, as shown in Fig. 2 (d).It is powered in piezoelectric vibrator
In a cycle of cyclic bending deformation, the first foot bearing and crus secunda bearing is driven to be located remotely from each other or close to each other, when first
When foot bearing and crus secunda bearing are located remotely from each other, larger sliding occurs for crus secunda bearing, and when the first foot bearing and crus secunda
When bearing is close to each other, larger sliding occurs for the first foot bearing, therefore can produce one in a power cycles inner driver
Step-length to the right.The reverse movement operation principle schematic diagram of the driver is as shown in Figure 3：When piezoelectric vibrator is not powered on, driving
Device is in nature, and support leg and foot bearing do not twist, as shown in Fig. 3 (a)：Concave change is produced when driving piezoelectric vibrator is powered
During shape, the first foot bearing and crus secunda bearing is driven to be located remotely from each other, while the first commutation piezoelectric vibrator and the second commutation piezoelectricity shake
Son is subject to the alternating voltage anti-phase with driving piezoelectric vibrator driving voltage to drive, and makes support leg and foot bearing that certain twisting occur,
The first low friction coefficient materials of the first foot bearing and the second high coefficient of friction material of crus secunda bearing is caused to be connect with working face
Touch, the skidding distance of the first foot bearing is significantly greater than the skidding distance of crus secunda bearing at this time, as shown in Fig. 3 (b)；When driving is pressed
When electric tachometer indicator energization produces convex deformation, drive the first foot bearing and crus secunda bearing close to each other, while the first commutation piezoelectricity shakes
Son and the second commutation piezoelectric vibrator are subject to alternating voltage to drive, and make support leg and foot bearing that certain twisting occur, cause the first foot
First high coefficient of friction material of bearing and the second low friction coefficient materials of crus secunda bearing are contacted with working face, and at this time second
The skidding distance of foot bearing is significantly greater than the skidding distance of the first foot bearing, as shown in Fig. 3 (c)；When piezoelectric vibrator turns again to
A working cycles are completed during equilbrium position, as shown in Fig. 3 (d).In a cycle of piezoelectric vibrator energization cyclic bending deformation
It is interior, drive the first foot bearing and crus secunda bearing to be located remotely from each other or close to each other, when the mutual with foot bearing and crus secunda bearing
When remote, larger sliding occurs for the first foot bearing, and when the first foot bearing and crus secunda bearing close to each other, crus secunda branch
Larger sliding occurs for seat, therefore can produce a step-length to the left in a power cycles inner driver.Therefore, when first changes
When commutating piezoelectric vibrator with driving piezoelectric vibrator driving voltage with phase to piezoelectric vibrator and second, which realizes positive drive
It is dynamic；When the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator and anti-phase driving piezoelectric vibrator driving voltage, the driver
Realize reverse drive.The present invention realizes bi-directional drive, and with it is simple in structure, maintenance cost is low, the requirement to working face compared with
In low and extension driver the advantages of the service life of piezoelectric ceramics.
To achieve these goals, the present invention uses following technical scheme：
A kind of more piezoelectric vibrator bidirectional drives of the present invention, the driver is by driving piezoelectric vibrator, the first support leg, second
Support leg, the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator, the first foot bearing and crus secunda bearing group are just.It is wherein described
Driving piezoelectric vibrator is pasted onto on Rectangular Elastic matrix by piezoelectric sheet material to be formed, first support leg and the second support leg
For identical rectangular tab component and there is certain elasticity, described first support leg one end is connected to driving piezoelectric vibrator following table
Face, the other end are free end, and described second support leg one end is connected to driving piezoelectric vibrator lower surface, the other end is free end,
The first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator are connected in the first support leg and the second support leg, described
First foot bearing and crus secunda bearing are structure, size and the identical cylindrical member of material, the first foot bearing by
First low friction coefficient materials and the first high coefficient of friction material are combined, free end and the first foot of first support leg
Bearing connects and the high coefficient of friction material of the first foot bearing is arranged in outside, the free end of second support leg and crus secunda
Bearing connects and the high coefficient of friction material of crus secunda bearing is arranged in inner side.
During work, driver is placed on working face, the first foot bearing and crus secunda bearing and working face
Contact.Apply out of phase alternating voltage respectively on three piezoelectric vibrator and bring it about cyclic bending deformation, drive wherein
Bipod bearing is close to each other or is located remotely from each other.In foot bearing moving process, foot bearing is subject to the friction opposite with moving direction
Power, frictional force make foot bearing and support leg that certain twisting occur, promote the material of different coefficients of friction on foot bearing respectively with
Working face is in contact, so that foot bearing produces different displacements, finally realizes the displacement of driver.The driver is just
It is as shown in Figure 2 to mobile working principle schematic：The left half-sections of driver the first foot bearing and crus secunda bearing are distinguished
For the first high coefficient of friction material and the second high coefficient of friction material, right half-sections be respectively the first low friction coefficient materials and
Second low friction coefficient materials, when piezoelectric vibrator is not powered on, driver is in nature, and support leg and foot bearing are not turned round
It is dynamic, as shown in Fig. 2 (a)；When driving piezoelectric vibrator energization to produce concave change shape, drive the first foot bearing and crus secunda bearing mutual
It is remote, while the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator are handed over be subject to driving piezoelectric vibrator driving voltage with phase
Time variant voltage drives, and makes support leg and foot bearing that certain twisting occur, cause the first foot bearing the first high coefficient of friction material and
Second low friction coefficient materials of crus secunda bearing are contacted with working face, and the skidding distance of crus secunda bearing is significantly greater than at this time
The skidding distance of one foot bearing, as shown in Fig. 2 (b)；When driving piezoelectric vibrator energization to produce convex deformation, the first foot bearing is driven
It is close to each other with crus secunda bearing, while the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator are subject to alternating voltage to drive,
Make support leg and the foot bearing certain twisting occur, cause the first low friction coefficient materials and crus secunda bearing of the first foot bearing
Second high coefficient of friction material is contacted with working face, and the skidding distance of the first foot bearing is significantly greater than the cunning of crus secunda bearing at this time
Distance is moved, as shown in Fig. 2 (c)；A working cycles are completed when piezoelectric vibrator turns again to equilbrium position, such as Fig. 2 (d) institutes
Show.In a cycle of piezoelectric vibrator energization cyclic bending deformation, the first foot bearing and crus secunda bearing is driven to be located remotely from each other
Or it is close to each other, when the first foot bearing and crus secunda bearing are located remotely from each other, larger sliding occurs for crus secunda bearing, and when the
When one foot bearing and crus secunda bearing close to each other, larger sliding occurs for the first foot bearing, therefore in a power cycles
Driver can produce a step-length to the right.The reverse movement operation principle schematic diagram of the driver is as shown in Figure 3：When piezoelectricity shakes
When son is not powered on, driver is in nature, and support leg and foot bearing do not twist, as shown in Fig. 3 (a)：When driving piezoelectricity
When oscillator energization produces concave change shape, the first foot bearing and crus secunda bearing is driven to be located remotely from each other, while the first commutation piezoelectric vibrator
It is subject to the alternating voltage anti-phase with driving piezoelectric vibrator driving voltage to drive with the second commutation piezoelectric vibrator, makes support leg and foot branch
Certain twisting occurs for seat, causes the first low friction coefficient materials of the first foot bearing and the second great friction coefficient of crus secunda bearing
Material is contacted with working face, and the skidding distance of the first foot bearing is significantly greater than the skidding distance of crus secunda bearing, such as Fig. 3 at this time
(b) shown in；When driving piezoelectric vibrator energization to produce convex deformation, drive the first foot bearing and crus secunda bearing close to each other, together
When the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator be subject to alternating voltage to drive, support leg and foot bearing occurs certain
Twisting, causes the first high coefficient of friction material of the first foot bearing and the second low friction coefficient materials of crus secunda bearing and work
Face contacts, and the skidding distance of crus secunda bearing is significantly greater than the skidding distance of the first foot bearing at this time, as shown in Fig. 3 (c)；Work as pressure
Electric tachometer indicator completes a working cycles when turning again to equilbrium position, as shown in Fig. 3 (d).In piezoelectric vibrator energization cyclic bending
In a cycle of deformation, drive the first foot bearing and crus secunda bearing to be located remotely from each other or close to each other, when the with foot bearing and
When crus secunda bearing is located remotely from each other, larger sliding occurs for the first foot bearing, and when the first foot bearing and crus secunda bearing are mutual
When close, larger sliding occurs for crus secunda bearing, therefore can produce a step to the left in a power cycles inner driver
It is long.Therefore, when the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator are with driving piezoelectric vibrator driving voltage with phase, the drive
Dynamic device realizes forward drive；When the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator and driving piezoelectric vibrator driving voltage are anti-
Xiang Shi, the driver realize reverse drive.The present invention realizes bi-directional drive, and with it is simple in structure, maintenance cost is low, to work
The advantages of making the service life of piezoelectric ceramics in the relatively low driver with extension of requirement in face.
Brief description of the drawings
Fig. 1 is a kind of more piezoelectric vibrator bidirectional drive structure diagrams of the present invention.
Fig. 2 is a kind of more piezoelectric vibrator bidirectional drive forward drive process schematics of the present invention.
Fig. 3 is a kind of more piezoelectric vibrator bidirectional drive reverse drive process schematics of the present invention.
Embodiment
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of more piezoelectric vibrator bidirectional drives of the present invention are by driving piezoelectric vibrator 1, first
Support leg 2, the second support leg 3, first commutation commutation of piezoelectric vibrator 4 and second piezoelectric vibrator 5, the first foot bearing 6 and crus secunda
Bearing 7 forms, wherein：
The driving piezoelectric vibrator 1 is pasted onto on Rectangular Elastic matrix by piezoelectric sheet material to be formed, first support
2 and second support leg 3 of leg is identical rectangular tab component and has certain elasticity, 2 one end of the first support leg connection
It is free end in 1 lower surface of driving piezoelectric vibrator, the other end, described second support leg, 3 one end is connected under driving piezoelectric vibrator 1
Surface, the other end are free end, and the first commutation piezoelectric vibrator 4 and second commutation piezoelectric vibrator 5 is connected to first
In 2 and second support leg 3 of support leg, the first foot bearing 6 and crus secunda bearing 7 are structure, size and material are identical
Cylindrical member, the first foot bearing 6 it is compound by the first high coefficient of friction material 61 and the first low friction coefficient materials 62 and
Into the free end of first support leg 2 is connected with the first foot bearing 6 and the first high coefficient of friction material of the first foot bearing 6
61 are arranged in outside, and the free end of second support leg 3 is connected with crus secunda bearing 7 and the second height of crus secunda bearing 7 rubs
Wipe coefficient material 71 and be arranged in inner side.
During work, driver is placed on working face, the first foot bearing and crus secunda bearing and working face
Contact.Apply out of phase alternating voltage respectively on three piezoelectric vibrator and bring it about cyclic bending deformation, drive wherein
Bipod bearing is close to each other or is located remotely from each other.In foot bearing moving process, foot bearing is subject to the friction opposite with moving direction
Power, frictional force make foot bearing and support leg that certain twisting occur, promote the material of different coefficients of friction on foot bearing respectively with
Working face is in contact, so that foot bearing produces different displacements, finally realizes the displacement of driver.The driver is just
It is as shown in Figure 2 to mobile working principle schematic：The left half-sections of driver the first foot bearing and crus secunda bearing are distinguished
For the first high coefficient of friction material and the second high coefficient of friction material, right half-sections be respectively the first low friction coefficient materials and
Second low friction coefficient materials, when piezoelectric vibrator is not powered on, driver is in nature, and support leg and foot bearing are not turned round
It is dynamic, as shown in Fig. 2 (a)；When driving piezoelectric vibrator energization to produce concave change shape, drive the first foot bearing and crus secunda bearing mutual
It is remote, while the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator are handed over be subject to driving piezoelectric vibrator driving voltage with phase
Time variant voltage drives, and makes support leg and foot bearing that certain twisting occur, cause the first foot bearing the first high coefficient of friction material and
Second low friction coefficient materials of crus secunda bearing are contacted with working face, and the skidding distance of crus secunda bearing is significantly greater than at this time
The skidding distance of one foot bearing, as shown in Fig. 2 (b)；When driving piezoelectric vibrator energization to produce convex deformation, the first foot bearing is driven
It is close to each other with crus secunda bearing, while the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator are subject to alternating voltage to drive,
Make support leg and the foot bearing certain twisting occur, cause the first low friction coefficient materials and crus secunda bearing of the first foot bearing
Second high coefficient of friction material is contacted with working face, and the skidding distance of the first foot bearing is significantly greater than the cunning of crus secunda bearing at this time
Distance is moved, as shown in Fig. 2 (c)；A working cycles are completed when piezoelectric vibrator turns again to equilbrium position, such as Fig. 2 (d) institutes
Show.In a cycle of piezoelectric vibrator energization cyclic bending deformation, the first foot bearing and crus secunda bearing is driven to be located remotely from each other
Or it is close to each other, when the first foot bearing and crus secunda bearing are located remotely from each other, larger sliding occurs for crus secunda bearing, and when the
When one foot bearing and crus secunda bearing close to each other, larger sliding occurs for the first foot bearing, therefore in a power cycles
Driver can produce a step-length to the right.The reverse movement operation principle schematic diagram of the driver is as shown in Figure 3：When piezoelectricity shakes
When son is not powered on, driver is in nature, and support leg and foot bearing do not twist, as shown in Fig. 3 (a)：When driving piezoelectricity
When oscillator energization produces concave change shape, the first foot bearing and crus secunda bearing is driven to be located remotely from each other, while the first commutation piezoelectric vibrator
It is subject to the alternating voltage anti-phase with driving piezoelectric vibrator driving voltage to drive with the second commutation piezoelectric vibrator, makes support leg and foot branch
Certain twisting occurs for seat, causes the first low friction coefficient materials of the first foot bearing and the second great friction coefficient of crus secunda bearing
Material is contacted with working face, and the skidding distance of the first foot bearing is significantly greater than the skidding distance of crus secunda bearing, such as Fig. 3 at this time
(b) shown in；When driving piezoelectric vibrator energization to produce convex deformation, drive the first foot bearing and crus secunda bearing close to each other, together
When the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator be subject to alternating voltage to drive, support leg and foot bearing occurs certain
Twisting, causes the first high coefficient of friction material of the first foot bearing and the second low friction coefficient materials of crus secunda bearing and work
Face contacts, and the skidding distance of crus secunda bearing is significantly greater than the skidding distance of the first foot bearing at this time, as shown in Fig. 3 (c)；Work as pressure
Electric tachometer indicator completes a working cycles when turning again to equilbrium position, as shown in Fig. 3 (d).In piezoelectric vibrator energization cyclic bending
In a cycle of deformation, drive the first foot bearing and crus secunda bearing to be located remotely from each other or close to each other, when the with foot bearing and
When crus secunda bearing is located remotely from each other, larger sliding occurs for the first foot bearing, and when the first foot bearing and crus secunda bearing are mutual
When close, larger sliding occurs for crus secunda bearing, therefore can produce a step to the left in a power cycles inner driver
It is long.Therefore, when the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator are with driving piezoelectric vibrator driving voltage with phase, the drive
Dynamic device realizes forward drive；When the first commutation piezoelectric vibrator and the second commutation piezoelectric vibrator and driving piezoelectric vibrator driving voltage are anti-
Xiang Shi, the driver realize reverse drive.The present invention realizes bi-directional drive, and with it is simple in structure, maintenance cost is low, to work
The advantages of making the service life of piezoelectric ceramics in the relatively low driver with extension of requirement in face.
Claims (1)
1. a kind of more piezoelectric vibrator bidirectional drives, including：Drive piezoelectric vibrator (1), the first support leg (2), the second support leg
(3), the first commutation piezoelectric vibrator (4) and second commutates piezoelectric vibrator (5), it is characterised in that further includes and realizes the of bi-directional drive
One foot bearing (6) and crus secunda bearing (7)；Wherein described driving piezoelectric vibrator (1) is pasted onto rectangle bullet by piezoelectric sheet material
Property matrix on form, first support leg (2) and the second support leg (3) are for identical rectangular tab component and with certain
Elasticity, it is free end that the first support leg (2) one end end, which is arranged in driving piezoelectric vibrator (1) lower surface, the other end, described the
Two support legs (3) one end is connected to driving piezoelectric vibrator (1) lower surface, the other end is free end, and the first commutation piezoelectricity shakes
Sub (4) and the second commutation piezoelectric vibrator (5) are connected in the first support leg (2) and the second support leg (3), first foot
Bearing (6) and crus secunda bearing (7) are structure, size and the identical cylindrical member of material, the first foot bearing (6)
It is combined by the first high coefficient of friction material (61) and the first low friction coefficient materials (62), first support leg (2)
Free end is connected with the first foot bearing (6) and the first high coefficient of friction material (61) of the first foot bearing (6) is arranged in outside, institute
The free end for stating the second support leg (3) is connected and the second high coefficient of friction material of crus secunda bearing (7) with crus secunda bearing (7)
(71) it is arranged in inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029534.5A CN107947627A (en) | 2018-01-12 | 2018-01-12 | A kind of more piezoelectric vibrator bidirectional drives |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810029534.5A CN107947627A (en) | 2018-01-12 | 2018-01-12 | A kind of more piezoelectric vibrator bidirectional drives |
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| CN107947627A true CN107947627A (en) | 2018-04-20 |
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| CN201810029534.5A Pending CN107947627A (en) | 2018-01-12 | 2018-01-12 | A kind of more piezoelectric vibrator bidirectional drives |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203466750U (en) * | 2013-09-24 | 2014-03-05 | 浙江师范大学 | Bionic type piezoelectric foot driver |
| CN105846719A (en) * | 2016-06-12 | 2016-08-10 | 吉林大学 | Variable damping piezoelectric actuator |
| CN105871248A (en) * | 2016-06-12 | 2016-08-17 | 吉林大学 | Directional driver with composite foot support seat |
| CN205666773U (en) * | 2016-06-12 | 2016-10-26 | 吉林大学 | Variable damping piezo -actuator |
| CN207743898U (en) * | 2018-01-12 | 2018-08-17 | 吉林大学 | A kind of multiple pressure electric tachometer indicator bidirectional drive |
-
2018
- 2018-01-12 CN CN201810029534.5A patent/CN107947627A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203466750U (en) * | 2013-09-24 | 2014-03-05 | 浙江师范大学 | Bionic type piezoelectric foot driver |
| CN105846719A (en) * | 2016-06-12 | 2016-08-10 | 吉林大学 | Variable damping piezoelectric actuator |
| CN105871248A (en) * | 2016-06-12 | 2016-08-17 | 吉林大学 | Directional driver with composite foot support seat |
| CN205666773U (en) * | 2016-06-12 | 2016-10-26 | 吉林大学 | Variable damping piezo -actuator |
| CN207743898U (en) * | 2018-01-12 | 2018-08-17 | 吉林大学 | A kind of multiple pressure electric tachometer indicator bidirectional drive |
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