CN104895986B - Shear mode magnetic rheology elastic body frequency conversion vibration isolator - Google Patents
Shear mode magnetic rheology elastic body frequency conversion vibration isolator Download PDFInfo
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- CN104895986B CN104895986B CN201510044266.0A CN201510044266A CN104895986B CN 104895986 B CN104895986 B CN 104895986B CN 201510044266 A CN201510044266 A CN 201510044266A CN 104895986 B CN104895986 B CN 104895986B
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- magnet
- elastic body
- cover plate
- rheology elastic
- magnetic rheology
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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
- F16F9/535—Magnetorheological [MR] fluid dampers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of shear mode magnetic rheology elastic body frequency conversion vibration isolator, including bolt, magnetic rheology elastic body, housing, upper cover plate, lower cover, sealing ring, Magnet, Magnet outer housing, Magnet cover plate, spring, bolt is fixed in the middle of magnetic rheology elastic body by attaching nut, magnetic rheology elastic body forms magnetic rheology elastic body assembly with housing, housing two ends are coordinated with upper cover plate, upper cover plate, lower cover and magnetic rheology elastic body are always shaped as closing space, sealing ring, closing space is divided into by Magnet outer housing and Magnet cover plate, cavity of resorption, Magnet is arranged between Magnet outer housing and Magnet cover plate, connected by spring between Magnet outer housing and magnetic rheology elastic body assembly, the present invention is moved by magnetic rheology elastic body, the relative change of magnet and magnetic rheology elastic body position, so as to realize multi-frequency working state down coversion vibration isolation.
Description
Technical field
The present invention relates to vibration isolator field, particularly a kind of shear mode magnetic rheology elastic body frequency conversion vibration isolator.
Background technology
Concussion and the impact from road surface when amortisseur rebounds after being mainly used to suppress spring shock-absorbing.Through not level road
During face, although shock-absorbing spring can filter the vibrations on road surface, but spring itself also has a reciprocating motion, and amortisseur be exactly for
Suppress this spring jump.Amortisseur is too soft, vehicle body will vertical bounce, amortisseur can bring about too big resistance very much firmly,
Hinder spring normal work.
Magnetic rheology elastic body is that the ferromagnetic particle of micro-meter scale is incorporated in high molecular polymer, under magnetic field environment
Solidification, so as to the granule in matrix has chain or column structure.The elastic modelling quantity of this material can become with applied field strengths
Change, compared with common magnetic flow liquid, magnetic rheology elastic body not only has controllability, reversibility, response contour technical characteristic rapidly,
Also have good stability etc. unique；Air spring amortisseur vibration isolation efficiency is high, small volume is easily installed.For existing
MR elastomer vibration isolator, if increasing the advantage of air spring amortisseur, can preferably play function of shock insulation.
Content of the invention
In order to improve the isolating affection of existing MR elastomer vibration isolator, a kind of magnetorheological elasticity of shear mode is proposed
Body frequency conversion vibration isolator.
The purpose of the present invention can be achieved through the following technical solutions：
Shear mode magnetic rheology elastic body frequency conversion vibration isolator, including bolt, magnetic rheology elastic body, housing, upper cover plate, lower cover
Plate, sealing ring, Magnet, Magnet outer housing, Magnet cover plate, spring, wherein：
The bolt is fixed in the middle of magnetic rheology elastic body by attaching nut, and power assembly is installed in the bolt upper end；
The magnetic rheology elastic body outer ring is fixed on housing, forms magnetic rheology elastic body assembly, and housing two ends are ladder
Shape, housing two ends are coordinated with upper cover plate；
The upper cover plate, lower cover and magnetic rheology elastic body are always shaped as closing space, the sealing ring, Magnet outer housing and
Closing space is divided into upper and lower chamber by Magnet cover plate；
The sealing ring outer ring is fixed between upper cover plate and lower cover, inner ring be fixed on Magnet outer housing and Magnet cover plate it
Between；
The Magnet is arranged on magnetic rheology elastic body lower end, and the Magnet is arranged between Magnet outer housing and Magnet cover plate；
Labyrinth channel is provided with the Magnet cover plate, and labyrinth channel end is provided with venthole, under venthole and closing space
Chamber connects, and the Magnet outer housing is provided with through hole, and through hole is connected with labyrinth channel；
Connected by spring between the Magnet outer housing and magnetic rheology elastic body assembly.
Further, due to the needs of magnetic Circuit Design, also include that magnetic conduction iron block, the magnetic conduction iron block are arranged on Magnet outer housing
And Magnet cover plate between, the magnetic conduction iron block can fixed magnet position.
Further, gap is left at horizontal integration between the housing and upper cover plate.
Preferably, the upper cover plate, lower cover, Magnet outer housing, Magnet cover plate and attaching nut's material are aluminium alloy.
Preferably, the bolt material is pyrite.
The magnetic rheology elastic body is bonded on housing by sulfuration.
Preferably, the magnetic rheology elastic body, housing, upper cover plate, lower cover, sealing ring, Magnet, Magnet outer housing, Magnet
Cover plate is revolving body.
Beneficial effects of the present invention：
1st, when power assembly low frequency significantly shakes, magnetic rheology elastic body significantly shakes, and now passes through magnetic rheology elastic body
Magnetic flux increase, magnetic rheology elastic body obtains big rigidity, while the air of intracavity is flowed back and forth through the passage that dams up and down, damping
Device obtains big damping, and rapid decay low frequency significantly shakes.
2nd, when power assembly high frequency slightly shakes, magnetic rheology elastic body amplitude is less, now passes through magnetic rheology elastic body
Magnetic flux reduce, magnetic rheology elastic body obtains little rigidity, while intracavity flows through, damping less through the air of the passage that dams up and down
Device obtains little damping, beneficial to decay high-frequency vibration.
3rd, the present invention is moved by magnetic rheology elastic body, and the relative change of magnet and magnetic rheology elastic body position, so as to realize
Multi-frequency working state down coversion vibration isolation.
Description of the drawings
Fig. 1 is shear mode magnetic rheology elastic body frequency conversion vibration isolator structure schematic diagram of the present invention.
Fig. 2 is magnet cap plate structure schematic diagram of the present invention.
Fig. 3 is Magnet cover plate sectional view of the present invention.
In accompanying drawing：1st, bolt, 2, magnetic rheology elastic body, 3, upper cover plate, 4, sealing ring, 5, Magnet outer housing, 6, magnetic conduction
Iron block, 7, Magnet, 8, Magnet cover plate, 9, lower cover, 10, spring, 11, housing.
Specific embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways for covering.
As shown in figure 1, shear mode magnetic rheology elastic body frequency conversion vibration isolator, including bolt 1, magnetic rheology elastic body 2, housing
11st, upper cover plate 3, lower cover 9, sealing ring 4, magnetic conduction iron block 6, Magnet 7, Magnet outer housing 5, Magnet cover plate 8, spring 10, the spiral shell
Bolt 1 is fixed in the middle of magnetic rheology elastic body 2 by the attaching nut that aluminium alloy is made, and bolt material is pyrite, on the bolt 1
End is installed by power assembly.
The sulfuration of the magnetic rheology elastic body 2 is bonded on housing 11, forms magnetic rheology elastic body assembly, and 11 two ends of housing are
Stepped, 11 two ends of housing are coordinated with upper cover plate 3, are left between deformation between the housing 11 and upper cover plate 3 at horizontal integration
The magnetic rheology elastic body assembly that gap, magnetic rheology elastic body 2 and housing 11 are combined between upper cover plate 3 and bolt 1, in cutting
Cut state.
The upper cover plate 3, lower cover 9 and magnetic rheology elastic body are always shaped as closing space, outside the sealing ring 4, Magnet
Closing space is divided into epicoele and cavity of resorption by cover 5 and Magnet cover plate 8, and 4 outer ring of the sealing ring is fixed on upper cover plate 3 and lower cover 9
Between, inner ring is fixed between Magnet outer housing 5 and Magnet cover plate 8.
The Magnet 7 is arranged on 2 lower end of magnetic rheology elastic body, and the Magnet 7 is installed in Magnet outer housing 5 and Magnet cover plate 8
Between, it is to optimize magnetic circuit and fixed magnet 7, magnetic conduction iron block 6 is installed in Magnet upper end, magnetic conduction iron block 6 is fixed on 5 He of Magnet outer housing
Between Magnet cover plate 8.
As shown in Figures 2 and 3, labyrinth channel is provided with the Magnet cover plate 8, labyrinth channel end is provided with venthole, goes out
Pore is connected with closing space cavity of resorption, and the Magnet outer housing 5 is provided with through hole, and through hole is connected with labyrinth channel, the Magnet outer housing 5
It is connected by spring 10 between magnetic rheology elastic body assembly.
Upper cover plate 3, lower cover 9, Magnet outer housing 5, Magnet cover plate 8 and attaching nut's material are aluminium alloy.
Magnetic rheology elastic body 2, housing 11, upper cover plate 3, lower cover 9, sealing ring 4, Magnet 7, Magnet outer housing 5, Magnet cover plate
8 are revolving body.
Sealing ring 4 and magnetic rheology elastic body 2 are composite.
The present embodiment is connected equivalent to a magnetic rheology elastic body amortisseur and two cavity space gas spring dampers, on
Chamber and cavity of resorption air pressure in the state of the equilibrium is equal, when magnetic rheology elastic body 2 is moved downward, upper chamber air
Compressed, cavity of resorption is entered by the venthole of 8 labyrinth channel of through hole and Magnet cover plate of Magnet outer housing 5；When magnetorheological elasticity
When body 2 is moved upwards, now the pressure of cavity of resorption is more than epicoele, and Magnet 7 is moved upwards, and is changed with the change of amplitude-frequency
Which controls the power in magnetic field, so as to reach the rigidity of control magnetic rheology elastic body.
The present invention is moved by magnetic rheology elastic body, the relative change of magnet and magnetic rheology elastic body position, many so as to realize
Frequency working condition down coversion vibration isolation.
Above content is only to present configuration example and explanation, affiliated those skilled in the art couple
Described specific embodiment is made various modifications or supplements or substituted using similar mode, without departing from invention
Structure surmounts scope defined in the claims, all should belong to protection scope of the present invention.
Claims (7)
1. shear mode magnetic rheology elastic body frequency conversion vibration isolator, it is characterised in that including bolt, magnetic rheology elastic body, housing, on
Cover plate, lower cover, sealing ring, Magnet, Magnet outer housing, Magnet cover plate, spring, wherein：
The bolt is fixed in the middle of magnetic rheology elastic body by attaching nut, and power assembly is installed in the bolt upper end；
The magnetic rheology elastic body outer ring is fixed on housing, forms magnetic rheology elastic body assembly, and housing two ends are stepped, shell
Body two ends are coordinated with upper cover plate；
The upper cover plate, lower cover and magnetic rheology elastic body are always shaped as closing space, the sealing ring, Magnet outer housing and Magnet
Closing space is divided into upper and lower chamber by cover plate；
The sealing ring outer ring is fixed between upper cover plate and lower cover, and inner ring is fixed between Magnet outer housing and Magnet cover plate；
The Magnet is arranged on magnetic rheology elastic body lower end, and the Magnet is arranged between Magnet outer housing and Magnet cover plate；
Labyrinth channel is provided with the Magnet cover plate, and labyrinth channel end is provided with venthole, and venthole is connected with closing space cavity of resorption
Logical, the Magnet outer housing is provided with through hole, and through hole is connected with labyrinth channel；
Connected by spring between the Magnet outer housing and magnetic rheology elastic body assembly.
2. shear mode magnetic rheology elastic body frequency conversion vibration isolator according to claim 1, it is characterised in that due to magnetic Circuit Design
Needs, also include magnetic conduction iron block, the magnetic conduction iron block is arranged between Magnet outer housing and Magnet cover plate, and the magnetic conduction iron block can
The position of fixed magnet.
3. shear mode magnetic rheology elastic body frequency conversion vibration isolator according to claim 1, it is characterised in that the housing with upper
Gap is left between cover plate at horizontal integration.
4. shear mode magnetic rheology elastic body frequency conversion vibration isolator according to claim 1, it is characterised in that the upper cover plate,
Lower cover, Magnet outer housing, Magnet cover plate and attaching nut's material are aluminium alloy.
5. shear mode magnetic rheology elastic body frequency conversion vibration isolator according to claim 1, it is characterised in that the bolt material
For pyrite.
6. shear mode magnetic rheology elastic body frequency conversion vibration isolator according to claim 1, it is characterised in that the magnetorheological bullet
Gonosome is bonded on housing by sulfuration.
7. shear mode magnetic rheology elastic body frequency conversion vibration isolator according to claim 1, it is characterised in that the magnetorheological bullet
Gonosome, housing, upper cover plate, lower cover, sealing ring, Magnet, Magnet outer housing, Magnet cover plate are revolving body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510044266.0A CN104895986B (en) | 2015-01-28 | 2015-01-28 | Shear mode magnetic rheology elastic body frequency conversion vibration isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510044266.0A CN104895986B (en) | 2015-01-28 | 2015-01-28 | Shear mode magnetic rheology elastic body frequency conversion vibration isolator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104895986A CN104895986A (en) | 2015-09-09 |
| CN104895986B true CN104895986B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510044266.0A Active CN104895986B (en) | 2015-01-28 | 2015-01-28 | Shear mode magnetic rheology elastic body frequency conversion vibration isolator |
Country Status (1)
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626758B (en) * | 2016-03-22 | 2017-12-26 | 铱格斯曼航空科技集团有限公司 | A kind of MR vibration damper for helicopter high-definition camera installation and debugging |
| CN114250880B (en) * | 2021-12-31 | 2022-10-25 | 同济大学 | Recycled concrete shearing vibration isolation device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62180129A (en) * | 1986-01-31 | 1987-08-07 | Toyota Motor Corp | Magnetic fluid filled vibration isolator |
| DE19711689A1 (en) * | 1997-03-20 | 1998-09-24 | Bayerische Motoren Werke Ag | Set bearing for motor vehicle |
| GB2357569B (en) * | 1999-12-23 | 2004-02-11 | Draftex Ind Ltd | Hydraulic cylinder |
| CN201902492U (en) * | 2010-12-21 | 2011-07-20 | 南车二七车辆有限公司 | Friction magnetorheological elastomer buffer |
| CN203413020U (en) * | 2013-07-22 | 2014-01-29 | 长安大学 | Engine vibration damper based on magneto-rheological fluid |
| CN203614654U (en) * | 2013-10-23 | 2014-05-28 | 安徽微威胶件集团有限公司 | Closed loop magnetizer magneto-rheological elastic body vibration isolator |
| CN103671687A (en) * | 2013-12-20 | 2014-03-26 | 谭苹 | Magneto-rheological elastomer double-annular-membrane damper |
| CN104034452B (en) * | 2014-07-01 | 2016-09-21 | 重庆材料研究院有限公司 | Shear strain formula pressure transducer |
| CN204533324U (en) * | 2015-01-28 | 2015-08-05 | 安徽微威胶件集团有限公司 | A kind of shear mode magnetic rheology elastic body frequency conversion vibration isolator |
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