CN109194190A - A kind of cantilever type piezoelectric linear actuator using hybrid magnets tune friction - Google Patents
A kind of cantilever type piezoelectric linear actuator using hybrid magnets tune friction Download PDFInfo
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- CN109194190A CN109194190A CN201811247318.4A CN201811247318A CN109194190A CN 109194190 A CN109194190 A CN 109194190A CN 201811247318 A CN201811247318 A CN 201811247318A CN 109194190 A CN109194190 A CN 109194190A
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- Prior art keywords
- magnetic yoke
- magnetorheological fluid
- block
- permanent magnet
- side plate
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- 239000012530 fluid Substances 0.000 claims abstract description 28
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 1
Classifications
-
- 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
- H02N2/04—Constructional details
Abstract
The present invention relates to a kind of cantilever type piezoelectric linear actuators using hybrid magnets tune friction, belong to Precision Piezoelectric actuation techniques field.Carrying pan bottom is equipped with two sliding blocks, sliding block is mounted on guide rail, guide rail is fixed on the top of both side plate, both side plate and pedestal and front and rear panel are affixed, both side plate and pedestal and front and rear panel are affixed, carrier is affixed by screw with movable body, passes through a pair of of piezoelectric vibrator of the asymmetric clamping of grip block in the middle part of moving person；The affixed friction block in moving person bottom, friction block are dipped in magnetorheological fluid, and magnetorheological fluid container top is equipped with sealing strip, and magnetorheological fluid container is placed in the supporting block on pedestal；Permanent magnet is arranged in the two sides of magnetorheological fluid container, and coil, the bonding magnetic yoke up and down of permanent magnet are surrounded with outside permanent magnet.Advantage characteristic: the friction type of contact surface is changed into solid-liquid/solid kind solid, contact surface fretting wear is small, improves stability；By control exciting current control friction, control mode is simple.
Description
Technical field
The invention belongs to Precision Piezoelectric actuation techniques fields, and in particular to a kind of to utilize the outstanding of hybrid magnets tune friction
Arm-type piezoelectricity straight line driver.
Background technique
As that studies microscopic fields deepens continuously, precision positioning technology seems ever more important, state-of-art
Directly influence the flow of research of microscopic fields technology.Precision driver mainly has following a few classes at present: piezoelectric actuator, electroluminescent
Telescopic driver and marmen etc..Wherein piezoelectric actuator is with its fast response time, and electromagnetic compatibility is good, power consumption
Small, small in size, noise is small, does not generate heat, output power, and displacement resolution is high, convenient and power supply, displacement sensor, microcomputer etc.
The characteristics of coming together to realize closed-loop control etc. is widely studied and applied it in recent years.Existing piezoelectricity drives
The relative motion contact condition of dynamic device is commonly solid-solid contact, and it is larger that driver has frictional force during the motion, rubs
The shortcomings that power is unevenly distributed is wiped, causes contact surface fretting wear, temperature change big, causes the movement essence of Precision Piezoelectric driver
Degree reduces.It therefore, is the performance for further increasing Precision Piezoelectric driver, urgent need to resolve fretting wear, frictional force apply uneven
It is even, it cannot achieve the continuously adjustable problem of frictional force.
To solve the above problems, the present invention proposes the magnetorheological fluid Piezoelectric Driving using permanent magnetism and electromagnetic combination control magnetic field
Device.Using symmetrical square wave electric signal as the pumping signal of piezoelectric vibrator, piezoelectric vibrator generates not under the conditions of asymmetric clamping
With the inertial impact force of size, when the impact force of generation is greater than frictional force, movable body movement rubs when the impact force of generation is less than
When wiping power, movable body stop motion.By introducing magnetorheological fluid, the primary friction shape of friction force adjustment mechanism when driver is run
Formula is solid-liquid/solid-class solid friction, rubs, wears small, drive reliability height；When needs frictional force less and
It is controlled when not needing to adjust using permanent magnet, may be implemented to save energy consumption；It is driven when needing regulating friction force to improve driver output
Control is mixed with permanent magnet using electromagnetic coil when power.Exciting current size by changing input may be implemented to be continuously adjusted
The running frictional force of driver has bigger controlled range.
Summary of the invention
The present invention proposes a kind of cantilever type piezoelectric linear actuator using hybrid magnets tune friction, to be solved
Technical problem: optimize the generally existing solid of apparatus for adjusting force that rubs in driver by being introduced into magnetorheological fluid to solid
Friction is unevenly distributed, frictional force with solving fretting wear, frictional force that common piezoelectric actuator generates solid by solid
It is difficult to quantitative the problems such as adjusting.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
Two side bottoms of carrier (a) are separately installed with sliding block one (e101), sliding block two (e201), with sliding block one
(e101), linear guide one (e102), the linear guide two (e202) of sliding block two (e201) cooperation are individually fixed in side plate one
(f1), the top of side plate two (f2)；Side plate one (f1), side plate two (f2) and pedestal (j) and foreboard (p2), back plate (p1) are connected；
Moving person (b) is fixed at the center of carrier (a), moving person (b) two sides are respectively provided with piezoelectric vibrator one (d1), piezoelectricity
Oscillator two (d2)；Piezoelectric vibrator one (d1) is made of piezoelectric chip one (d102), substrate one (d101) and mass block one (d103)；
Piezoelectric vibrator two (d2) is made of piezoelectric chip two (d202), substrate two (d201) and mass block two (d203)；Piezoelectric vibrator one
(d1), piezoelectric vibrator two (d2) is clamped by moving person (b) and grip block (c), and method of clamping is asymmetric clamping；Moving person
(b) bottom fixed friction block (m), and soak and be placed in magnetorheological fluid (l), magnetorheological fluid (l) is placed in magnetorheological fluid container (k)
In, it is stained with sealing strip one (n1) and sealing strip two (n2) close to moving person (a) place at the top of magnetorheological fluid container (k), it is magnetorheological
Liquid container (k) bottom is adhered in supporting block (o), and supporting block (o) is fixed on pedestal (j)；The two sides of magnetorheological fluid container (j) point
Not Bu Zhi permanent magnet one (i1), permanent magnet (i2), coil one (h1), coil two (h2) are around in permanent magnet one (i1), permanent magnetism respectively
Iron two (i2) periphery；The upper and lower side of permanent magnet one (i1) is stained with magnetic yoke one (g101), magnetic yoke two (g102) respectively；Permanent magnet (i2)
Upper and lower side be stained with respectively or magnetic yoke three (g201), magnetic yoke four (g202), magnetic yoke one (g101), magnetic yoke two (g102), magnetic yoke three
(g201), the other end of magnetic yoke four (g202) is contacted with the surface of magnetorheological fluid container (k).
The invention has the advantages that by introducing magnetorheological fluid, the primary friction of friction force adjustment mechanism when driver is run
Form is solid-liquid/solid-class solid friction, rubs, wears small, drive reliability height；When the frictional force of needs is little
And controlled when not needing to adjust using permanent magnet, it may be implemented to save energy consumption；It is exported when needing regulating friction force to improve driver
Control is mixed with permanent magnet using electromagnetic coil when driving force.Exciting current size by changing input may be implemented continuously may be used
The running frictional force of driver is adjusted, there is bigger controlled range.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the B-B cross-sectional view of Fig. 1.
Specific embodiment
Embodiment is illustrated referring to figs. 1 to Fig. 3, it is a kind of described in present embodiment to be rubbed using hybrid magnets tune
The cantilever type piezoelectric linear actuator of wiping, two side bottoms of carrier (a) are separately installed with sliding block one (e101), sliding block two
(e201), linear guide one (e102), linear guide two (e202) difference cooperated with sliding block one (e101), sliding block two (e201)
It is fixed on the top of side plate one (f1), side plate two (f2)；Side plate one (f1), side plate two (f2) and pedestal (j) and foreboard (p2), after
Plate (p1) is connected；Moving person (b) is fixed at the center of carrier (a), moving person (b) two sides are respectively provided with piezoelectric vibrator
One (d1), piezoelectric vibrator two (d2)；Piezoelectric vibrator one (d1) is by piezoelectric chip one (d102), substrate one (d101) and mass block one
(d103) it forms；Piezoelectric vibrator two (d2) is made of piezoelectric chip two (d202), substrate two (d201) and mass block two (d203)；
Piezoelectric vibrator one (d1), piezoelectric vibrator two (d2) are clamped by moving person (b) and grip block (c), and method of clamping is asymmetric folder
It holds；The bottom fixed friction block (m) of moving person (b), and soak and be placed in magnetorheological fluid (l), magnetorheological fluid (l) is placed in magnetorheological
In liquid container (k), sealing strip one (n1) and sealing strip two are stained with close to moving person (a) place at the top of magnetorheological fluid container (k)
(n2), magnetorheological fluid container (k) bottom is adhered in supporting block (o), and supporting block (o) is fixed on pedestal (j)；Magnetorheological fluid container
(j) two sides are respectively arranged permanent magnet one (i1), permanent magnet (i2), and coil one (h1), coil two (h2) are around in permanent magnet respectively
One (i1), permanent magnet two (i2) periphery；The upper and lower side of permanent magnet one (i1) is stained with magnetic yoke one (g101), magnetic yoke two respectively
(g102)；The upper and lower side of permanent magnet (i2) is stained with respectively or magnetic yoke three (g201), magnetic yoke four (g202), magnetic yoke one (g101), magnetic
Yoke two (g102), magnetic yoke three (g201), magnetic yoke four (g202) the other end contacted with the surface of magnetorheological fluid container (k).
In the present invention, using symmetrical square wave electric signal as the pumping signal of piezoelectric vibrator, piezoelectric vibrator is in asymmetric folder
Different size of inertial impact force is generated under the conditions of holding.When the impact force of generation is greater than frictional force, movable body movement；Work as generation
Impact force be less than frictional force when, movable body stop motion.The friction apparatus for adjusting force of driver can encouraging according to electromagnetic coil
The size of magnetoelectricity stream, regulating friction force size indirectly control the output performance of driver, have good controllability.
Claims (1)
1. a kind of cantilever type piezoelectric linear actuator using hybrid magnets tune friction comprising: carrier (a), movement
Main body (b), grip block (c), piezoelectric vibrator one (d1), piezoelectric vibrator two (d2), side plate one (f1), side plate two (f2), guide rail one
(e1), guide rail two (e2), side plate one (f1), side plate two (f2), magnetic yoke one (g101), magnetic yoke two (g102), magnetic yoke three (g201),
Magnetic yoke four (g202), coil one (h1), coil two (h2), permanent magnet one (i1), permanent magnet two (i2), pedestal (j), magnetorheological fluid
It is container (k), magnetorheological fluid (1), friction block (m), sealing strip one (n1), sealing strip two (n2), supporting block (o), back plate (p1), preceding
Plate (p2), it is characterised in that: two side bottoms of carrier (a) are separately installed with sliding block one (e101), sliding block two (e201), with cunning
Linear guide one (e102), the linear guide two (e202) that block one (e101), sliding block two (e201) cooperate are individually fixed in side plate
The top of one (f1), side plate two (f2)；Side plate one (f1), side plate two (f2) and pedestal (j) and foreboard (p2), back plate (p1) are solid
Even；Be fixed with moving person (b) at the center of carrier (a), moving person (b) two sides be respectively provided with piezoelectric vibrator one (d1),
Piezoelectric vibrator two (d2)；Piezoelectric vibrator one (d1) is by piezoelectric chip one (d102), substrate one (d101) and mass block one (d103)
Composition；Piezoelectric vibrator two (d2) is made of piezoelectric chip two (d202), substrate two (d201) and mass block two (d203)；Piezoelectricity vibration
One (d1) of son, piezoelectric vibrator two (d2) are clamped by moving person (b) and grip block (c), and method of clamping is asymmetric clamping；Movement
The bottom fixed friction block (m) of main body (b), and soak and be placed in magnetorheological fluid (1), magnetorheological fluid (1) is placed in magnetorheological fluid container
(k) in, sealing strip one (n1) and sealing strip two (n2), magnetic current are stained with close to moving person (a) place at the top of magnetorheological fluid container (k)
Become the bottom liquid container (k) to be adhered in supporting block (o), supporting block (o) is fixed on pedestal (j)；The two sides of magnetorheological fluid container (j)
It is respectively arranged permanent magnet one (i1), permanent magnet (i2), coil one (h1), coil two (h2) are around in permanent magnet one (i1), forever respectively
Magnet two (i2) periphery；The upper and lower side of permanent magnet one (i1) is stained with magnetic yoke one (g101), magnetic yoke two (g102) respectively；Permanent magnet
(i2) upper and lower side is stained with respectively or magnetic yoke three (g201), magnetic yoke four (g202), magnetic yoke one (g101), magnetic yoke two (g102), magnetic
Yoke three (g201), magnetic yoke four (g202) the other end contacted with the surface of magnetorheological fluid container (k).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811247318.4A CN109194190A (en) | 2018-10-09 | 2018-10-09 | A kind of cantilever type piezoelectric linear actuator using hybrid magnets tune friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811247318.4A CN109194190A (en) | 2018-10-09 | 2018-10-09 | A kind of cantilever type piezoelectric linear actuator using hybrid magnets tune friction |
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| Publication Number | Publication Date |
|---|---|
| CN109194190A true CN109194190A (en) | 2019-01-11 |
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| CN201811247318.4A Pending CN109194190A (en) | 2018-10-09 | 2018-10-09 | A kind of cantilever type piezoelectric linear actuator using hybrid magnets tune friction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111726033A (en) * | 2020-05-25 | 2020-09-29 | 浙江师范大学行知学院 | Magnetic suspension type lateral pressure unidirectional micro-power piezoelectric inertia driver |
| CN111755519A (en) * | 2020-06-02 | 2020-10-09 | 西安电子科技大学 | Silicon carbide UMOSFET device integrated with SBD |
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| CN101068100A (en) * | 2007-05-31 | 2007-11-07 | 吉林大学 | Offset support cantilever type piezoelectric inertia impact precision driver |
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| CN105003530A (en) * | 2015-06-02 | 2015-10-28 | 孙美娜 | Tapered roller thrust bearing with integration speed change function for small load |
| CN106168265A (en) * | 2016-08-11 | 2016-11-30 | 张广 | A kind of energy based on piezoelectric effect is from supplying magneto-rheological vibration damper |
| CN108199609A (en) * | 2018-02-09 | 2018-06-22 | 浙江师范大学 | A kind of piezoelectric inertia driver based on non-newtonian fluid |
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2018
- 2018-10-09 CN CN201811247318.4A patent/CN109194190A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110035118A1 (en) * | 2007-02-02 | 2011-02-10 | Gregory Hiemenz | Method of determining impact severity and adaptive impact attenuation |
| CN101068100A (en) * | 2007-05-31 | 2007-11-07 | 吉林大学 | Offset support cantilever type piezoelectric inertia impact precision driver |
| CN105003530A (en) * | 2015-06-02 | 2015-10-28 | 孙美娜 | Tapered roller thrust bearing with integration speed change function for small load |
| CN104889950A (en) * | 2015-06-08 | 2015-09-09 | 广东工业大学 | Dynamic characteristic adjustable micro-motion platform |
| CN104889951A (en) * | 2015-06-08 | 2015-09-09 | 广东工业大学 | Dynamic characteristic adjustable macro-micro integrated composite platform |
| CN106168265A (en) * | 2016-08-11 | 2016-11-30 | 张广 | A kind of energy based on piezoelectric effect is from supplying magneto-rheological vibration damper |
| CN108199609A (en) * | 2018-02-09 | 2018-06-22 | 浙江师范大学 | A kind of piezoelectric inertia driver based on non-newtonian fluid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111726033A (en) * | 2020-05-25 | 2020-09-29 | 浙江师范大学行知学院 | Magnetic suspension type lateral pressure unidirectional micro-power piezoelectric inertia driver |
| CN111755519A (en) * | 2020-06-02 | 2020-10-09 | 西安电子科技大学 | Silicon carbide UMOSFET device integrated with SBD |
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Application publication date: 20190111 |