CN110195760A - A kind of novel piezo-electric ceramic and ER fluid are from coupling damper - Google Patents
A kind of novel piezo-electric ceramic and ER fluid are from coupling damper Download PDFInfo
- Publication number
- CN110195760A CN110195760A CN201910514080.5A CN201910514080A CN110195760A CN 110195760 A CN110195760 A CN 110195760A CN 201910514080 A CN201910514080 A CN 201910514080A CN 110195760 A CN110195760 A CN 110195760A
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- Prior art keywords
- fluid
- damper
- piston
- plate
- internal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3221—Constructional features of piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/532—Electrorheological [ER] fluid dampers
Abstract
The present invention is a kind of novel piezo-electric ceramic with ER fluid from coupling damper.It is made of part of the force, piezoelectric, damping portion, compensation plenum section and packed part.Internal and external electrode plate is embedded in respectively on damper inner/outer tube.Damp channel is formed between internal and external electrode, inner cylinder top is equipped with reflux aperture, and lower part is equipped with arc backflow gap.When piston rod is by extraneous vibration, pressure spring plate is moved with piston rod.The spring connecting with pressure spring plate applies pressure to the piezoelectric ceramics of arrangement symmetrical above and below, and piezoelectric ceramics, which is pressurized, generates induced voltage.Induced voltage is wired on internal and external electrode, is generated electric field in annular damper interchannel, is increased the viscosity of ER fluid, to reduce the vibration of piston.Piston vibration amplitude is bigger, and the voltage that piezoelectric ceramics generates is higher, and the resistance that ER fluid generates is bigger, to achieve the purpose that system from coupling vibration damping.Present invention eliminates external power supplies and control system.
Description
Technical field
The present invention relates to a kind of New type of current liquescent dampers, are not necessarily to external power supply at work, can be with extraneous vibration
Intelligent damper of the amplitude from coupling vibration damping.
Background technique
ER fluid (electrorheological fluids, ERF fluid) is a kind of intellectual material, it be usually by
The even particulate dispersion with high dielectric constant of micron (or nanometer) scale is in the oil-phase medium of the low-k of insulation
The suspension of formation.When applying external electric field, ERF fluid is changed into class solid state from flow regime, and apparent viscosity suddenly increases
Several orders of magnitude, and reach higher shear stress.The process is reversible, controllable, rapid and low-power consumption.These excellent machines
Being electrically coupled performance enables ERF fluid to efficiently solve energy transmission and control problem in mechanical engineering.Zhao Xiaopeng etc. is in patent " one
Kind without external power from coupling current liquescent damper " in (ZL02139476.8), devise powered with piezoelectric ceramics it is adaptive
Current liquescent damper is answered, external power supply is eliminated, but entirely damper only piezoelectric ceramics during downward compression
It just works, fluid damping can just change, and adaptive damping is had no in backhaul.Damping caused by piston rod is not accounted in damper
Device cavity volume changes, and can hardly realize in practical application.In addition, damper lower return is using aperture, it is of long duration
ER fluid particle is easy sedimentation blocking aperture, seriously affects damper performance.In the patent " self-adaptive damping of wedge shape force
In device " (ZL96236426.6), due to having used labor-saving structure, therefore extraneous vibration cannot be excessive.Both the above damper is respectively
Defect be subject to certain restrictions so that applying.
Summary of the invention
The object of the present invention is to provide a kind of novel piezo-electric ceramic and ER fluids from coupling damper, it have directly by
The features such as power, anti-vibration amplitude are big, stroke is big, rigidity is small.Damper piezoelectric ceramics uses arrangement symmetrical above and below, so that damper
Variable damping force can be provided when stretching and compression travel.The gas chamber of damper is arranged on damper top, increases piston
The guiding stroke of bar, increases the stability of damper.The lower part of damper uses arc backflow gap, prevents ER fluid
Grain sedimentation results in blockage, and increases damper service performance and service life.
Detailed description of the invention
Fig. 1 is that the piezoelectric ceramics proposed according to the present invention couples the main view sectional view of damper with ER fluid certainly.In Fig. 1
Each component and number are as follows:
1. 5. dispatch from foreign news agency pole plate of electrode plate, 6. duct, 7. gasket 8. 6 in 2. arc-shaped gaps of pedestal, 3. annular damper channel 4.
14. piezoelectric ceramics of angle nut 9. bolt, 10. pressure spring plate, 11. piston rod, 12. top cover, 13. straight tube lid, 15. upper junction plate
16. 17. conducting wire of spring, 18. 21. annular floating piston of lower connecting plate 19.O 20. gas chamber of shape sealing ring, 22. ER fluid
23. 24. charge and discharge fluid apertures of piston.
Specific embodiment
The object of the present invention is achieved like this: structure of the invention is as shown in Figure 1.It is by part of the force, including piston
Bar (11), pressure spring plate (10), spring (16), piston (23)；Piezoelectric, including straight tube lid (13), piezoelectric ceramics (14), upper company
Fishplate bar (15), conducting wire (17), lower connecting plate (18)；Damping portion, including arc-shaped gaps (2), annular damper channel (3), interior electricity
Pole plate (4), dispatch from foreign news agency pole plate (5), duct (6), ER fluid (22)；Packed part, including pedestal (1), gasket (7), hexagonal spiral shell
Female (8), bolt (9), top cover (12), O-ring seals (19)；And plenum section, including gas chamber (20) are compensated, annular floating is living
Fill in (21) five parts composition.Wherein part of the force, piezoelectric, damping portion and compensation plenum section are linked in sequence up and down.
Internal and external electrode is embedded on damper inner/outer tube, and damp channel is formed between internal and external electrode.
Piston rod (11) is permanently connected with piston (23).Pressure spring plate (10) is fixed on piston rod (11), pressure spring plate
(10) upper and lower side connecting spring (16).The centre bore and outer force machine that piston rod (11) passes through straight tube lid (13) and top cover (12)
Structure is connected.Top cover (12) is connected through a screw thread with damper outer cylinder, to fix straight tube lid (13) and spring (16).
Spring (16) is divided into two sections, and upper section connects pressure spring plate (10) and upper junction plate (15), and lower section connects pressure spring plate (10)
With lower connecting plate (18), extruding piezoelectric ceramics, lower company can only be moved upwards about the symmetrical upper junction plate (15) of pressure spring plate (10)
Fishplate bar (18) can only move downward extruding piezoelectric ceramics.When piston rod (11) moves up and down, there are piezoelectric ceramics (14) to be pressurized and produce
Raw voltage.
Interior electrode plate (4) and dispatch from foreign news agency pole plate (5) are embedded in respectively on damper inner/outer tube, and the setting of damping cavity top, which is floated, lives
It fills in (21), gas, the two composition compensation gas chamber is filled with inside gas chamber (20).Damping cavity lower part is set as arc passage gaps (2),
Prevent the sedimentation of ER fluid particle from resulting in blockage.
Piezoelectric ceramics (14) is connected with interior electrode plate (4) and dispatch from foreign news agency pole plate (5) by conducting wire (17), piston rod (11) and resistance
O-ring seals are used between Buddhist nun's chamber, damper outer cylinder is connect using bolt (9) with nut (8) with pedestal (1).
The working principle of damper is as follows: when external force instigates piston rod (11) movement, piston rod (11) is together with pressure spring plate
(10) it moves together, spring (16) squeezes piezoelectric ceramics (14) up and down and generates voltage.The voltage of generation is connected by conducting wire (17)
Onto interior electrode plate (4) and dispatch from foreign news agency pole plate (5).ER fluid (22) between internal and external electrode is influenced by electric field, and viscosity increases, shearing
Intensity increases.ER fluid (22) passes through electrode gap (2,3) and duct under the thrust of piston (23), from damping cavity
(6) it flows between internal and external electrode (4,5), then flow back into damping cavity again.Since the viscosity of ER fluid (22) increases, shearing
Intensity increases, and increases in turn the resistance that piston (23) generate, to achieve the purpose that vibration damping.The up and down motion of piston (23)
Amplitude is bigger, and the voltage that piezoelectric ceramics (14) generates is higher, and the resistance that ER fluid (22) generates is bigger, to reach certainly
Couple the purpose of vibration damping.
Claims (4)
1. a kind of novel piezo-electric ceramic couples damper certainly with ER fluid, by piston rod (11), pressure spring plate (10), spring
(16), the part of the force of piston (23) composition；By straight tube lid (13), piezoelectric ceramics (14), upper junction plate (15), conducting wire (17),
The piezoelectric of lower connecting plate (18) composition；By arc-shaped gaps (2), annular damper channel (3), interior electrode plate (4), dispatch from foreign news agency pole plate
(5), the damping portion that duct (6), ER fluid (22) form；The compensation being made of gas chamber (20), annular floating piston (21)
Plenum section；The envelope being made of pedestal (1), gasket (7), hex nut (8), bolt (9), top cover (12), O-ring seals (19)
Dress part forms；It is characterized in that part of the force, piezoelectric and damping portion are linked in sequence up and down；Internal and external electrode is embedded in respectively
On damper inner/outer tube, damp channel is formed between internal and external electrode.
2. a kind of novel piezo-electric ceramic according to claim 1 couples damper certainly with ER fluid, it is characterized in that piezoelectricity
Ceramic (14) use and are arranged symmetrically up and down about pressure spring plate.
3. a kind of novel piezo-electric ceramic according to claim 1 couples damper certainly with ER fluid, it is characterized in that annular
Floating piston (21) is arranged in damping cavity top, inflatable body in gas chamber (20).
4. a kind of novel piezo-electric ceramic according to claim 1 couples damper certainly with ER fluid, it is characterized in that damping
Device lower part uses arc-shaped gaps (2) flow-thru electrode rheology liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910514080.5A CN110195760A (en) | 2019-06-14 | 2019-06-14 | A kind of novel piezo-electric ceramic and ER fluid are from coupling damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910514080.5A CN110195760A (en) | 2019-06-14 | 2019-06-14 | A kind of novel piezo-electric ceramic and ER fluid are from coupling damper |
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| Publication Number | Publication Date |
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| CN110195760A true CN110195760A (en) | 2019-09-03 |
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| CN201910514080.5A Pending CN110195760A (en) | 2019-06-14 | 2019-06-14 | A kind of novel piezo-electric ceramic and ER fluid are from coupling damper |
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| CN (1) | CN110195760A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677808A (en) * | 2020-06-15 | 2020-09-18 | 四川大学 | Double-rod uncompensated air chamber symmetric self-powered electro-rheological fluid damper |
| CN113236703A (en) * | 2021-04-25 | 2021-08-10 | 四川大学 | Electrorheological fluid shock absorber with temperature self-adaptive characteristic |
| CN114211253A (en) * | 2021-12-30 | 2022-03-22 | 霍山嘉远智能制造有限公司 | Quick positioning and fixing device of numerical control boring and milling machine |
| WO2022121319A1 (en) * | 2020-12-11 | 2022-06-16 | 大连理工大学 | Piezoelectric ceramic sensor-based apparatus and method for monitoring viscosity of fluid in viscous damper |
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|---|---|---|---|---|
| CN2318452Y (en) * | 1996-11-15 | 1999-05-12 | 赵晓鹏 | Wedge force applied self-adaption damper |
| CN1492161A (en) * | 2002-10-21 | 2004-04-28 | 西北工业大学 | Self coupling electric rheological liquid damper without external power |
| KR20100007252A (en) * | 2008-07-11 | 2010-01-22 | 한국과학기술원 | Smart mr(magnetorheological fluid) damper using piezoelectric material |
| CN103671677A (en) * | 2013-12-24 | 2014-03-26 | 北京九州一轨隔振技术有限公司 | Viscous damper |
| CN104613124A (en) * | 2015-02-04 | 2015-05-13 | 吉林大学 | Double-piston electro-rheological shock absorber |
| CN105417316A (en) * | 2016-01-07 | 2016-03-23 | 重庆大学 | Magnetorheology based elevator drop buffering device |
| CN205824027U (en) * | 2016-06-23 | 2016-12-21 | 燕山大学 | A kind of electromechanical integration pulsator controller |
| CN107448536A (en) * | 2017-09-19 | 2017-12-08 | 福州大学 | Sensing magnetic rheological liquid damper and its control method certainly of a kind of recoverable energy |
| CN108180251A (en) * | 2018-02-23 | 2018-06-19 | 四川大学 | Adaptive vibration isolator and railway roadbed vibrating isolation system |
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2019
- 2019-06-14 CN CN201910514080.5A patent/CN110195760A/en active Pending
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| CN2318452Y (en) * | 1996-11-15 | 1999-05-12 | 赵晓鹏 | Wedge force applied self-adaption damper |
| CN1492161A (en) * | 2002-10-21 | 2004-04-28 | 西北工业大学 | Self coupling electric rheological liquid damper without external power |
| KR20100007252A (en) * | 2008-07-11 | 2010-01-22 | 한국과학기술원 | Smart mr(magnetorheological fluid) damper using piezoelectric material |
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| CN104613124A (en) * | 2015-02-04 | 2015-05-13 | 吉林大学 | Double-piston electro-rheological shock absorber |
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| CN205824027U (en) * | 2016-06-23 | 2016-12-21 | 燕山大学 | A kind of electromechanical integration pulsator controller |
| CN107448536A (en) * | 2017-09-19 | 2017-12-08 | 福州大学 | Sensing magnetic rheological liquid damper and its control method certainly of a kind of recoverable energy |
| CN108180251A (en) * | 2018-02-23 | 2018-06-19 | 四川大学 | Adaptive vibration isolator and railway roadbed vibrating isolation system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677808A (en) * | 2020-06-15 | 2020-09-18 | 四川大学 | Double-rod uncompensated air chamber symmetric self-powered electro-rheological fluid damper |
| WO2022121319A1 (en) * | 2020-12-11 | 2022-06-16 | 大连理工大学 | Piezoelectric ceramic sensor-based apparatus and method for monitoring viscosity of fluid in viscous damper |
| US11726019B2 (en) | 2020-12-11 | 2023-08-15 | Dalian University Of Technology | Viscous damper fluid viscosity monitoring device and method based on piezoceramic transducers |
| CN113236703A (en) * | 2021-04-25 | 2021-08-10 | 四川大学 | Electrorheological fluid shock absorber with temperature self-adaptive characteristic |
| CN114211253A (en) * | 2021-12-30 | 2022-03-22 | 霍山嘉远智能制造有限公司 | Quick positioning and fixing device of numerical control boring and milling machine |
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Application publication date: 20190903 |
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