CN205745069U - A kind of Novel magnetorheological fluid antivibrator - Google Patents
A kind of Novel magnetorheological fluid antivibrator Download PDFInfo
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- CN205745069U CN205745069U CN201620380698.9U CN201620380698U CN205745069U CN 205745069 U CN205745069 U CN 205745069U CN 201620380698 U CN201620380698 U CN 201620380698U CN 205745069 U CN205745069 U CN 205745069U
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- piston
- antivibrator
- ring
- magnetorheological fluid
- coil windings
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Abstract
nullThe utility model discloses a kind of Novel magnetorheological fluid antivibrator，Including cylinder barrel、Upper end cover、Guide housing、Sealing ring one、Piston rod、Piston、Seal catch、Coil windings、Floating piston and sealing ring two，Wherein cylinder barrel is divided into epicoele and cavity of resorption by floating piston，Upper intracavity fills magnetic flow liquid，Cavity of resorption is airbag chamber，Floating piston sealing ring dual-purpose circumferentially is to prevent the magnetic flow liquid entrance cavity of resorption of epicoele，The piston that piston rod end connects is positioned in the magnetic flow liquid of cylinder barrel epicoele，Piston outer ring is that multiple stalloy one is formed by stacking，Pawl extremely goes up coiling winding，Piston inner ring is that multiple stalloy two is formed by stacking，The copper connecting plate that piston outer ring and piston inner ring pass through connects，And define annular damper passage，Coil windings uses axial coiling to reduce current vortex and produces，And electromagnetic field effect is in whole damp channel，Increase electromagnetic field effective interaction length，Solve the contradiction between antivibrator size and damping force size，The most also heating problem is solved.
Description
Technical field
This utility model belongs to vehicle vibration damping technical field, and specifically, this utility model relates to a kind of New Magnetic Field Controlled
Rheology fluid damper.
Background technology
Along with socioeconomic development and progress, huge numbers of families gradually come into by automobile, and manufacturer is for improving city
Competitiveness, it is necessary to taking out the high product of cost performance to meet the demand in market, therefore people are to running car
Ride comfort and comfortableness are had higher requirement.
Suspension system directly affects ride comfort and the comfortableness of automobile, and the antivibrator in automobile absorber is suspension
The critical piece of system.On automobile suspension system, the antivibrator in institute's employing amortisseur is mainly passive type at present
, the most traditional hydra-shock absorber mainly realizes cushioning effect by the damping of regulation internal one-way valve,
Can not change the damped coefficient of antivibrator according to real-time road, therefore the ride comfort of running car and comfortableness are just
It is not being met.Using damping force adjustable and the Active suspension of spring rate, system can be according to Real-time Road bar
Part and vehicle travel conditions change damping force and the size of spring rate, to meet riding comfort and to travel smooth-going
The requirement of property, but the structure of active suspension system is complicated, and cost is more expensive, therefore it only exists in laboratory at home
Exploratory stage.But the semi-active suspension system being made up of the active damper of passive spring and damping force adjustable
System, cheap with it, manufacturing process is relatively easy, effectiveness in vibration suppression is preferable, is being increasingly becoming current automobile
The developing direction of suspension system.But the coil of the magnetic rheological liquid damper in current semi-active suspension system around
Group is all to use circumference winding, when controlling curent change, easily produces current vortex in piston, and piston easily generates heat；
Winding coil electric current is excessive simultaneously, and coil self the most easily generates heat；Size limitation is had again due to the thickness of piston,
The effective length causing coil effect is the shortest, and the damping force of generation is the least, tends not to meet very well vehicle vibration damping
Requirement.
Summary of the invention
This utility model at least solves one of technical problem of present automobile shock.To this end, this utility model carries
For a kind of Novel magnetorheological fluid antivibrator.
To achieve these goals, the technical scheme that this utility model is taked is: a kind of Novel magnetorheological fluid damping
Device, comprising: cylinder barrel, upper end cover, guide housing, sealing ring one, piston rod, the first suspension ring, the second suspension ring,
Piston, sealing catch, coil windings, floating piston and sealing ring two, described cylinder barrel lower end is with the second suspension ring even
Connecing, described first suspension ring are welded in one end of piston rod, and upper end cover is connected with the upper surface of cylinder barrel, and guide housing sets
Inside upper end cover, and cylinder barrel is divided into epicoele and cavity of resorption by floating piston, and upper intracavity fills magnetic flow liquid, cavity of resorption
Being airbag chamber, piston is formed by stalloy one and stalloy two stack combinations.
Preferably, described guide housing is provided with ring groove, and guide housing is located at inside upper end cover, and in piston rod
Coaxially, in ring groove, it is provided with sealing ring one, and sealing ring one is placed on piston rod.
Preferably, described piston rod is provided with external screw thread one, circumference spacing block set, external screw thread two and wire guide,
And external screw thread one be located at circumference spacing block set upper end, external screw thread two be located at circumference spacing block set lower end, along piston rod
Be axially and radially provided with wire guide.
Preferably, described wire guide includes vertical holes and transverse holes, and vertical holes is vertical with transverse holes communicates.
Preferably, described piston includes that piston outer ring and piston inner ring, piston outer ring and piston inner ring pass through copper
Connecting plate connects, and defines annular damper passage through the isolation of copper connecting plate, and described copper connecting plate sets
Being calculated as secter pat structure, and piston outer ring is that the stalloy one being provided with pawl pole is formed by stacking, piston inner ring is for being provided with
The stalloy two of circumference limited impression is formed by stacking, copper connecting plate one end therein and the medial wall of piston outer ring
Connecting, other end is connected with the sector notch of piston inner ring.
Preferably, described stalloy one is provided with pawl pole, and pawl pole is evenly arranged along the circumferencial direction of stalloy one
Having four, coil windings is wound in pawl and extremely goes up, and the magnetic pole of the relative coil windings that pawl is extremely gone up is identical.
Preferably, the outer rim of described stalloy two being along the circumferential direction uniformly provided with four sector notch, inside sets
There is circumferential limited impression.
Preferably, described coil windings uses axial coiling to be around in pawl extremely to go up and the axis of each coil windings and work
The axis of stopper rod is vertical, i.e. axially winding process.
Preferably, described floating piston excircle is provided with sealing ring two, is tightly connected with inner wall of cylinder, and can
Slide axially along cylinder barrel.
Preferably, described sealing catch is located at upper surface and the lower surface of piston, then in the upper surface of piston and
Piston coaxial line is fixed on piston rod by lower surface respectively through spring shim nut, and seals catch and work
The side of plug laminating scribbles fluid sealant.
The magnetic rheological liquid damper coil that this utility model is used to solve in semi-active suspension system uses circumference
Winding, when curent change is the biggest, easily produces current vortex in piston, and piston easily generates heat；Simultaneously coil around
Group electric current is excessive, and coil self the most easily generates heat, and has size limitation due to the thickness of piston again, causes coil to be made
Effective length the shortest, the damping force of generation is the least, the problem often not reaching damping requirement, for reduce electricity
The generation of eddy current, coil heating and raising damping performance have done brand-new design, use having of above technical scheme
Benefit effect is: this utility model can change the electric current of the coil windings of antivibrator according to real-time road, thus changes
Damping force, improves riding comfort and ride performance, piston outer ring and piston inner ring all use thin stalloy
Being formed by stacking, monoblock piston resolves into a lot of silicon steel thin slice, coil windings uses axial winding to be wound in pawl pole
On, the axis of coil windings is vertical with piston rod axis, and make that the electromagnetic field of generation passes is all the thinnest silicon steel
Sheet, reduce the magnetic flux of unit are, it is to avoid produces current vortex in piston, solves piston heating
Problem, meanwhile, the sphere of action of the electromagnetic field that coil windings produces is this annular damper passage, can be significantly
Increase effective interaction length, increase damping force, thus solve and increase damping force and increase antivibrator size
Contradiction, design of the present utility model, ban the working method of traditional fluid pressure type antivibrator, have also been changed and work as
Before the magnetic Circuit Design mode of magnetic rheological liquid damper on the market, effectively reduce the product of current vortex in piston
The heating problem of the piston that green tape is come, the most also solves the contradiction increasing damping force with increasing antivibrator size,
Improve the performance of active damper in semi-active suspension system.
Accompanying drawing explanation
Fig. 1 is the sectional view of Novel magneto-rheological damper；
Fig. 2 is piston structure schematic diagram；
Fig. 3 is piston explosive view；
Fig. 4 is piston top view；
Fig. 5 is piston outer ring structure schematic diagram；
Fig. 6 is piston upper cover plate axonometric drawing；
Fig. 7 is layout and the magnetic direction structural representation of coil windings；
Fig. 8 is piston rod mapping；
Fig. 9 is piston rod front view；
Figure 10 is piston rod A-A sectional view；
Wherein:
1, cylinder barrel；2, upper end cover；3, piston；4, floating piston；5, sealing ring one；6, piston rod；
7, spring shim one；8, nut one；9, spring shim two；10, nut two；11, the second suspension ring；12、
Guide housing；13, sealing ring two；14, coil windings；15, catch is sealed；30, stalloy one；31, silicon
Steel disc two；32, copper connecting plate；33, annular damper passage；34, circumference limited impression；35, pawl pole；
60, the first suspension ring；61, external screw thread one；62, circumference spacing block set；63, external screw thread two；64, wire guide.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, detailed description of the invention of the present utility model is made into one
Step detailed description, it is therefore an objective to help those skilled in the art that design of the present utility model, technical scheme are had
More complete, accurate and deep understanding, and contribute to its enforcement.
As shown in Figures 1 to 10, this utility model is a kind of Novel magnetorheological fluid antivibrator, solves current vortex
The piston heating problem brought and the contradictory problems increasing damping force and increase antivibrator size.
Specifically, as shown in Figures 1 to 10, mainly include cylinder barrel 1, upper end cover 2, guide housing 12,
Sealing ring 1, piston rod the 6, first suspension ring the 60, second suspension ring 11, piston 3, sealing catch 15, coil
Winding 14, floating piston 4 and sealing ring 2 13, described cylinder barrel 1 is cylindrical, the lower end of cylinder barrel 1 and the
Two suspension ring 11 connect, and upper end cover 2 is connected with the upper surface of cylinder barrel 1, and guide housing 12 is located at inside upper end cover 2,
Guide housing 12 is provided with ring groove, and is co-axially mounted in piston rod 6, is provided with sealing ring two in ring groove
13, and sealing ring 2 13 is placed on piston rod 6, the guide effect of guide housing 12, it is ensured that piston rod 6
The stability of axially-movable, the sealing ring 2 13 on guide housing 12 seals, and cylinder barrel 1 is floated and lives
Plug 4 is divided into epicoele and cavity of resorption, floating piston 4 excircle to be provided with sealing ring 1, with cylinder barrel 1 inner wall sealing
Connect, prevent magnetic flow liquid from entering airbag chamber, and can slide axially along cylinder barrel 1, wherein go up intracavity and fill magnetic
Rheology liquid, cavity of resorption is airbag chamber, and piston is formed by stalloy 1 and stalloy 2 31 stack combinations；Wherein
Piston rod 6 on the first suspension ring 60 be connected with vehicle body, the second suspension ring 11 of cylinder barrel 1 lower end are connected with wheel.
As shown in Figure 2 and Figure 3, piston 3 includes piston outer ring and piston inner ring, piston outer ring and piston inner ring
Connected by copper connecting plate 32, and define annular damper passage 33 through the isolation of copper connecting plate 32,
Described copper connecting plate 32 is designed as secter pat structure, and the Main Function of copper connecting plate 32 is: on the one hand will
The outer ring of piston and the fixing connection of the inner ring of piston, still further aspect seals up between pawl pole 35 and pawl pole 35
Gap, prevents magnetic flow liquid from entering in coil, improves job security and the reliability of coil windings, and piston
Outer ring is to be provided with the stalloy one of pawl pole 35 to fold 30 and add and form, and piston inner ring is for being provided with circumference limited impression 34
Stalloy 2 31 be formed by stacking, copper connecting plate 32 one end therein is connected with the medial wall of piston outer ring,
Other end is connected with the sector notch of piston inner ring；Then at piston 3 as shown in Figure 2 by stalloy one
Coil winding 14 on the pawl pole 35 of the piston outer ring that 30 are formed by stacking, then will be wound with coil windings 14
Piston 3 be connected with the circumferential spacing block set 62 on piston rod 6 by circumference limited impression 34, now piston
3 circumferentially rotate by the circumferential spacing block set 62 on piston rod 6 and the mistake between circumference limited impression 34
Cooperation of being full of is limited, and then seals catch 15 on the set of the upper surface of piston 3, is then passed through spring shim 1
Limited moved axially upward along piston rod 6 of piston 3 afterwards by external screw thread 1 with nut 1,
The lower surface of piston 3 also puts sealing catch 15, passes through with nut 2 10 after being then passed through spring shim 29
External screw thread 2 63 limits the axial downward movement along piston rod 6 of piston 3, and is sealing catch 15 and living
The side of plug 3 laminating scribbles fluid sealant, in order to seal coil windings 14, prevents magnetic flow liquid from entering
Internal piston.
As it is shown in fig. 7, the winding method that the coil windings 14 on piston 3 is on pawl pole 35 is axial coiling,
And when coil windings 14 is energized, the arrangement form of produced electromagnetic field is as it is shown in fig. 7, the most each line
After circle winding 14 energising, it is ensured that the magnetic pole of the coil windings 14 on pawl pole 35 relatively is identical, adjacent pawl pole 35
On the magnetic pole of coil windings 14 contrary, be arranged so as to coil windings 14 and the magnetic pole of coil windings 14, make
Whole annular damper passage 33 has the action of a magnetic field, can be greatly increased effective interaction length, increase damping
Power, thus solve the contradiction increasing damping force with increasing antivibrator size.
As shown in Figure 9, Figure 10, it is provided with wire in the axis centre of piston rod 6 and the bottom of external screw thread 1
Hole 64, the wire worn in wire guide 64 is connected, by electricity with the coil windings 14 being wound on pawl pole 35
Stream is transported in each coil windings 14, makes coil windings 14 produce electromagnetic field.
In sum, when automobile is when jolting traveling on road surface, and the displacement transducer on automotive suspension will be by road
The displacement signal that face injustice is brought is converted to the signal of telecommunication, and controller controls according to real-time road according to this signal of telecommunication
The size of electric current in coil windings 14, thus the power of the electromagnetic field of control coil winding 14 generation, electromagnetic field
Direction is as it is shown in fig. 7, be perpendicular to annular damper passage 33, because jolting of road is continuous print, so can
The size of moment damping force the most rearward is controlled, it is achieved root with the displacement signal produced with moment automobile bumpiness instantly
According to the size of real-time road damping adjusting power, improve riding comfort and the ride performance of automobile；When automobile
When vehicle frame moves up and down, piston rod 6 will move up and down along with vehicle frame, but when in annular damper passage 33
During the electromagnetic field effect that magnetic flow liquid is sensed, the viscosity of magnetic flow liquid increases, and the damping force of generation is the most corresponding
Increase, thus vehicle frame can be weakened and move up and down along with jolting of road, reached the effect of damping；Make simultaneously
What the electromagnetic field produced passed is all the thinnest stalloy 1 and stalloy 2 31, reduces unit are
Magnetic flux, it is to avoid produce current vortex in piston, the problem solving piston heating, meanwhile, coil windings
14 sphere of actions of electromagnetic fields produced be whole annular damper passage 33 along piston axial length, can be significantly
Increase effective interaction length, increase damping force, thus solve and increase damping force and increase antivibrator size
Contradiction.
Above in association with accompanying drawing, this utility model is exemplarily described, it is clear that this utility model implements
It is not subject to the restrictions described above, as long as have employed method of the present utility model design and technical scheme is carried out
The improvement of various unsubstantialities；Or the most improved, above-mentioned design of the present utility model and technical scheme directly should
For other occasion, all within protection domain of the present utility model.
Claims (10)
1. a Novel magnetorheological fluid antivibrator, including cylinder barrel, upper end cover, guide housing, sealing ring one, lives
Stopper rod, the first suspension ring, the second suspension ring, piston, sealing catch, coil windings, floating piston and sealing ring two,
Described cylinder barrel lower end is connected with the second suspension ring, and described first suspension ring are welded in one end of piston rod, upper end cover and cylinder
The upper surface of cylinder connects, and guide housing is located at inside upper end cover, and cylinder barrel is divided into epicoele and cavity of resorption by floating piston,
Piston is formed by stacking by stalloy.
A kind of Novel magnetorheological fluid antivibrator the most according to claim 1, it is characterised in that lead described in:
Being provided with ring groove to cover, guide housing is located at inside upper end cover, and coaxial with piston rod, sets in ring groove
There is sealing ring one, and sealing ring one is placed on piston rod.
A kind of Novel magnetorheological fluid antivibrator the most according to claim 1, it is characterised in that: described work
Stopper rod is provided with external screw thread one, circumference spacing block set, external screw thread two and wire guide, and external screw thread one is located at circumference
Spacing block set upper end, external screw thread two is located at circumference spacing block set lower end, is led along being axially and radially provided with of piston rod
String holes.
A kind of Novel magnetorheological fluid antivibrator the most according to claim 3, it is characterised in that lead described in:
String holes includes vertical holes and transverse holes, and vertical holes is vertical with transverse holes communicates.
A kind of Novel magnetorheological fluid antivibrator the most according to claim 1, it is characterised in that: described work
Plug includes that piston outer ring and piston inner ring, piston outer ring and piston inner ring are connected by copper connecting plate, and is formed
Annular damper passage, described copper connecting plate is designed as secter pat structure, and piston outer ring is to be provided with pawl pole
Stalloy one is formed by stacking, and piston inner ring is that the stalloy two being provided with circumference limited impression is formed by stacking, therein
Copper connecting plate one end is connected with the medial wall of piston outer ring, other end and the circumferential limited impression of piston inner ring
Connect.
A kind of Novel magnetorheological fluid antivibrator the most according to claim 5, it is characterised in that: described silicon
Steel disc one is provided with pawl pole, and pawl pole has been evenly arranged four along the circumferencial direction of stalloy one, coil windings around
It is formed on pawl extremely to go up, and the magnetic pole of the relative coil windings that pawl is extremely gone up is identical.
A kind of Novel magnetorheological fluid antivibrator the most according to claim 5, its spy is: described silicon steel
Along the circumferential direction being uniformly provided with four sector notch in the outer rim of sheet two, inside is provided with circumference limited impression.
A kind of Novel magnetorheological fluid antivibrator the most according to claim 7, it is characterised in that: described line
Circle winding use axial coiling be around in pawl extremely go up and the axis of each coil windings and the axis of piston rod vertical.
A kind of Novel magnetorheological fluid antivibrator the most according to claim 1, it is characterised in that: described floating
Move and outside piston week be provided with sealing ring two, be tightly connected with inner wall of cylinder, and can slide axially along cylinder barrel.
10. according to claim 1 or claim 5 or claim 6 or claim 7 or claim 8
Or a kind of Novel magnetorheological fluid antivibrator described in any one in claim 9, it is characterised in that: described close
Block sheet is located at upper surface and the lower surface of piston, then in the upper surface of piston and lower surface respectively through spring
Piston coaxial line is fixed on piston rod by pad nut, and seals the side that catch and piston fit and scribble close
Sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380698.9U CN205745069U (en) | 2016-05-01 | 2016-05-01 | A kind of Novel magnetorheological fluid antivibrator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380698.9U CN205745069U (en) | 2016-05-01 | 2016-05-01 | A kind of Novel magnetorheological fluid antivibrator |
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| CN205745069U true CN205745069U (en) | 2016-11-30 |
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| CN201620380698.9U Expired - Fee Related CN205745069U (en) | 2016-05-01 | 2016-05-01 | A kind of Novel magnetorheological fluid antivibrator |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838493A (en) * | 2019-04-12 | 2019-06-04 | 宴晶科技(北京)有限公司 | A kind of MR damper of more magnetic couple stator structures |
| KR102001589B1 (en) * | 2018-02-14 | 2019-07-18 | 인하대학교 산학협력단 | MR damper having structure for previenting eddy current |
| CN110094449A (en) * | 2019-04-30 | 2019-08-06 | 中北大学 | A kind of low-power consumption MR mount based under shear mode |
| CN111553021A (en) * | 2020-04-26 | 2020-08-18 | 贵州理工学院 | Design method of active suspension system based on cascade disturbance observer |
| CN112324837A (en) * | 2020-11-24 | 2021-02-05 | 清华大学 | Electromagnetic piston and magnetorheological damper |
| CN112963489A (en) * | 2021-04-07 | 2021-06-15 | 重庆大学 | Multi-channel multi-degree-of-freedom magnetorheological damper based on porous composite material |
| CN113187846A (en) * | 2021-03-24 | 2021-07-30 | 北京工业大学 | Full-channel effective damping multi-magnetic-couple magneto-rheological damper |
| CN114576300A (en) * | 2022-03-10 | 2022-06-03 | 重庆大学 | Full-channel effective magnetorheological damper and piston assembly thereof |
| CN115674614A (en) * | 2022-12-30 | 2023-02-03 | 广东美的制冷设备有限公司 | Mould subassembly and injection molding machine |
-
2016
- 2016-05-01 CN CN201620380698.9U patent/CN205745069U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102001589B1 (en) * | 2018-02-14 | 2019-07-18 | 인하대학교 산학협력단 | MR damper having structure for previenting eddy current |
| CN109838493B (en) * | 2019-04-12 | 2021-05-07 | 宴晶科技(北京)有限公司 | Magneto-rheological damper with multi-magnetic-couple stator structure |
| CN109838493A (en) * | 2019-04-12 | 2019-06-04 | 宴晶科技(北京)有限公司 | A kind of MR damper of more magnetic couple stator structures |
| CN110094449A (en) * | 2019-04-30 | 2019-08-06 | 中北大学 | A kind of low-power consumption MR mount based under shear mode |
| CN110094449B (en) * | 2019-04-30 | 2021-05-25 | 中北大学 | Low-power-consumption magnetorheological suspension based on shearing mode |
| CN111553021A (en) * | 2020-04-26 | 2020-08-18 | 贵州理工学院 | Design method of active suspension system based on cascade disturbance observer |
| CN112324837A (en) * | 2020-11-24 | 2021-02-05 | 清华大学 | Electromagnetic piston and magnetorheological damper |
| CN113187846A (en) * | 2021-03-24 | 2021-07-30 | 北京工业大学 | Full-channel effective damping multi-magnetic-couple magneto-rheological damper |
| CN113187846B (en) * | 2021-03-24 | 2022-08-12 | 北京工业大学 | Full-channel effective damping multi-magnetic-couple magneto-rheological damper |
| CN112963489A (en) * | 2021-04-07 | 2021-06-15 | 重庆大学 | Multi-channel multi-degree-of-freedom magnetorheological damper based on porous composite material |
| CN112963489B (en) * | 2021-04-07 | 2022-08-16 | 重庆大学 | Multi-channel multi-degree-of-freedom magnetorheological damper based on porous composite material |
| CN114576300A (en) * | 2022-03-10 | 2022-06-03 | 重庆大学 | Full-channel effective magnetorheological damper and piston assembly thereof |
| CN115674614A (en) * | 2022-12-30 | 2023-02-03 | 广东美的制冷设备有限公司 | Mould subassembly and injection molding machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20170501 |
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| CF01 | Termination of patent right due to non-payment of annual fee |