CN105736624B - Magneto-rheological damper with unidirectional damping property - Google Patents
Magneto-rheological damper with unidirectional damping property Download PDFInfo
- Publication number
- CN105736624B CN105736624B CN201610313665.7A CN201610313665A CN105736624B CN 105736624 B CN105736624 B CN 105736624B CN 201610313665 A CN201610313665 A CN 201610313665A CN 105736624 B CN105736624 B CN 105736624B
- Authority
- CN
- China
- Prior art keywords
- damping
- piston
- cylinder barrel
- gland
- iron core
- Prior art date
- 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.)
- Active
Links
Classifications
-
- 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
-
- 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
- F16F9/3214—Constructional features of pistons
-
- 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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/3405—Throttling passages in or on piston body, e.g. slots
-
- 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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/341—Special valve constructions; Shape or construction of throttling passages comprising noise-reducing or like features, e.g. screens
Abstract
The invention discloses a magneto-rheological damper with unidirectional damping property, and relates to the technical field of devices for adjusting damping property by changing fluid viscosity. The magneto-rheological damper comprises a damping cylinder, a unidirectional damping piston assembly, a coil assembly, a piston rod and magneto-rheological liquid, wherein the unidirectional damping piston assembly comprises a damping piston, a spring sheet and a gasket; a first annular through hole and a second annular through hole are formed in the damping piston; a magneto-rheological fluid passage is arranged on the coil assembly and is communicated with the first annular through hole, and the coil assembly does not cover the second annular through hole. The magneto-rheological damper has the advantages that when the damping piston moves up, the spring sheet seals the second annular through hole, the magneto-rheological fluid only passes through the magneto-rheological liquid passage under the action of a magnetic field, and the damping force can be adjusted by adjusting the intensity of the magnetic field; when the damping piston moves down, the second annular through hole is opened under the action of no magnetic field, and the produced damping force is little, so that the unidirectional damping property of the magneto-rheological damper is realized.
Description
Technical field
The present invention relates to adjust the engineering device technique field of damping property by changing fluid toughness, more particularly, to a kind of tool
There is the MR damper of unidirectional damping characteristic.
Background technology
MR damper is a kind of new semi-active damper device based on magnetic flow liquid controllable characteristics, has response speed
Degree is fast, structure is simple, small volume, the advantages of be easily controlled, be a kind of preferable vibration isolation, vibration absorber, in vibration control field
It is with a wide range of applications.Solenoid is around on the piston of antivibrator common MR damper, simultaneously on piston
Annular channel is set or annular channel is set between piston and damping cylinder barrel, during work, magnetic flow liquid flows through product from annular channel
Raw damping force, the magnetic field intensity that the electric current in regulation solenoid just can change in annular channel reaches the mesh of damping adjusting power
's.
Vibration control apparatus in engineering use the antivibrator with unidirectional damping characteristic sometimes, and stable state can be shaken
Move vibration isolation, damping effect, deterioration effect, such as a lot of vapour will not have been produced to the vibration isolation under transient impact effect, effectiveness in vibration suppression again
Suspension vibroshock is just the antivibrator with unidirectional damping characteristic.For MR damper, its unidirectional damping characteristic can
To be realized with the cut-out electric current when piston moves along a direction, but to require to meet certain damping force, common magnetorheological
The gap of antivibrator annular channel is smaller, even if therefore electric current does not have magnetic field intensity when being zero, still can produce during piston movement
The certain damping force of life.
Content of the invention
The technical problem to be solved is to provide a kind of MR damper with unidirectional damping characteristic, has
In a certain direction of motion damping force very little, the adjustable feature of another direction of motion damping force, described antivibrator have well every
Shake, effectiveness in vibration suppression, and have the advantages that applied widely.
For solving above-mentioned technical problem, the technical solution used in the present invention is：A kind of magnetic with unidirectional damping characteristic
Rheological damper, including damping cylinder barrel, the lower end of described damping cylinder barrel is provided with floating piston, the upper surface of floating piston and damping
It is magnetorheological sap cavity between cylinder barrel, in it, is provided with magnetic flow liquid, the upper end of described damping cylinder barrel is provided with one end and extends to damped cylinder
Cylinder in, the other end be located at damping cylinder barrel outside piston rod it is characterised in that：The end that described piston rod is located in damping cylinder barrel is solid
Surely there are unidirectional damping piston component and coil block, described unidirectional damping piston component includes damping piston, spring leaf and pad,
Described pad, spring leaf and damping piston are fixed on the end of described piston rod successively from top to bottom, and described coil block is fixed
On the piston rod on the downside of described damping piston, around described damping piston axle center be respectively separated be provided with several the first rings
Shape through hole and several second annular vias, described second annular via is located at the outside and described the of described first annular via
The aperture of two annular vias is more than the aperture of the first annular via, corresponding with described first annular via on described spring leaf
Position, is provided with the spring leaf annular via being connected respectively with the first annular via, and the second annular via is covered by spring leaf；
On described coil block, position corresponding with described first annular via, is provided with the magnetic being connected respectively with the first annular via
Rheology liquid passage, and described coil block is not by described second annular via covering.
Further technical scheme is：Described damping cylinder barrel includes cylinder cap, cylinder barrel, floating piston and cylinder bottom, described cylinder
Lid is fixedly welded on the top of described cylinder barrel, and described floating piston is located in the cylinder barrel of described coil block bottom, and and cylinder barrel
Dynamic sealing connects, and described cylinder bottom is fixedly welded on the bottom of described cylinder barrel；Form magnetic between described floating piston, cylinder cap and cylinder barrel
Rheology sap cavity, forms energy storage chamber between described cylinder bottom, floating piston and cylinder barrel, accumulation of energy intracavity is filled with nitrogen, for compensating piston
The change in volume of magnetorheological sap cavity when bar stretches.
Further technical scheme is：The lower end of described piston rod is provided with positioning shaft shoulder and external screw thread, described piston rod
Lower end sequentially pass through the centre bore of pad, the centre bore of spring leaf and damping piston centre bore pass through external screw thread and coil group
Iron core on part is threaded, and described pad is connected in described positioning shaft shoulder.
Further technical scheme is：Described coil block includes gland, iron core, magnetic conduction iron hoop, solenoid, coil
Sheath and flux sleeve, the periphery of described iron core is wound with solenoid, and the outside of solenoid is arranged with coil jackets, magnetic conduction iron hoop
With the lower end location fit of iron core, gland is fixed on the lower end of described iron core, and gland is provided with gland annular via, described gland
The aperture of annular via and position are identical with described first annular via, and what flux sleeve kept gap is sheathed on the outer of described iron core
Side, and its upper surface and damping piston cooperation, lower surface is coordinated with gland, spring leaf annular via, the first annular via, magnetic conduction
Gap between set and iron core and gland annular via are sequentially communicated formation magnetic flow liquid passage.
Further technical scheme is：The top of described iron core is provided with the iron core shaft shoulder, and axle center is provided with centre bore, centre bore
Inside it is provided with female thread, middle part is provided with the solenoid fairlead being connected with centre bore, bottom is provided with collar, and coil jackets pass through
The iron core shaft shoulder, collar and iron core location fit, the lead of solenoid is through the solenoid fairlead on iron core and piston rod
Centre bore is drawn.
Further technical scheme is：Described gland includes the lobe positioned at upside and is fixed on the downside of lobe
Base portion, the periphery of described lobe is provided with gland screw thread, and described base portion is provided with the gland shaft shoulder, described gland annular via
It is arranged in described base portion.
Further technical scheme is：Described gland is connected with the female thread of core center in the hole by gland screw thread,
Filling with sealant between the described upper surface of gland screw thread, the lower surface of piston rod and the inner threaded surface of iron core.
Further technical scheme is：Described iron core, magnetic conduction iron hoop, the making material of flux sleeve are high magnetic permeability soft magnetism
Material, damping piston, gland, coil jackets adopt non-magnet_conductible material to make.
Further technical scheme is：The top and bottom of described flux sleeve are respectively equipped with flux sleeve hole shoulder, described lead
Magnetosheath is passed through flux sleeve hole shoulder and is coordinated with damping piston and gland respectively.
Further technical scheme is：It is provided with floating piston sealing ring between described floating piston and damping cylinder barrel；Institute
State and be provided with damping piston sealing ring between damping piston and damping cylinder barrel；It is provided with cylinder cap close between described piston rod and damping cylinder barrel
Seal.
Have the beneficial effects that using produced by technique scheme：Magnetic current is constituted between described spring leaf and damping cylinder barrel
Become the upper cavity of liquid, between described damping piston, coil block and damping cylinder barrel, constitute the lower chamber of magnetic flow liquid.When damping is lived
When plug moves upwards, due to the pressure effect of epicoele magnetic flow liquid, the second annular via is sealed by spring leaf, therefore magnetic flow liquid is only
The magnetic flow liquid passage that can flow into and through coil block from the first annular via flow to lower chamber, produces during solenoid energising
Magnetisation rheological effect, thus producing certain damping force, by adjusting magnetic field intensity, it is possible to achieve the regulation of damping force；Work as resistance
When Buddhist nun's piston moves downward, the pressure of lower chamber backs down spring leaf, and the second annular via is in open mode, due to the second ring-type
Via clearance is larger, therefore most magnetic flow liquid flow to upper cavity through the second annular via, simultaneously because damping piston is
Non-magnet_conductible material, will not produce magnetic rheology effect in the second annular via, thus the damping force very little producing, thus realizing magnetic current
The unidirectional damping characteristic of mutative damp device.
Described antivibrator can give full play to vibration absorber be subject to a direction unexpected impact when spring cushioning effect,
Simultaneously because unidirectional damping characteristic is adjustable, therefore described antivibrator has good vibration isolation, effectiveness in vibration suppression, and has applicable model
Enclose wide advantage.
Brief description
Fig. 1 is the cross section structure diagram of the present invention；
Fig. 2 is the cross section structure diagram of damping piston in the present invention；
Fig. 3 is the top view of damping piston in the present invention；
Fig. 4 is the cross section structure diagram of spring leaf in the present invention
Fig. 5 is the top view of spring leaf in the present invention；
Fig. 6 is the cross section structure diagram of flux sleeve in the present invention；
Fig. 7 is the cross section structure diagram of iron core in the present invention；
Fig. 8 is the cross section structure diagram of gland in the present invention；
Fig. 9 is the front view of piston rod in the present invention；
Figure 10 is magnetic circuit formation basic theory figure in the present invention；
Wherein：1st, cylinder cap 2, cylinder cap sealing ring 3, cylinder barrel 4, piston rod 401, external screw thread 402, positioning shaft shoulder 5, floating
Piston 6, floating piston sealing ring 7, cylinder bottom 8, gland 801, gland screw thread 802, gland annular via 803, gland
The shaft shoulder 9, iron core 901, the iron core shaft shoulder 902, collar 903, solenoid fairlead 904, female thread 10, magnetic conduction iron hoop
11st, solenoid 12, coil jackets 13, flux sleeve 131, flux sleeve hole shoulder 14, damping piston sealing ring 15, damping are lived
Plug the 151, first annular via 152, the second annular via 153, the piston shaft shoulder 16, spring leaf 161, spring leaf ring-type are led to
Hole 17, pad 18, fluid sealant.
Specific embodiment
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Elaborate a lot of details in the following description in order to fully understand the present invention, but the present invention is acceptable
To be implemented different from alternate manner described here using other, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
As shown in figure 1, the invention discloses a kind of MR damper with unidirectional damping characteristic, including damped cylinder
Cylinder, the lower end of described damping cylinder barrel is provided with floating piston 5, is magnetic flow liquid between the upper surface of floating piston 5 and damping cylinder barrel
Chamber, is provided with magnetic flow liquid in it, the upper end of described damping cylinder barrel is provided with one end and extends in damping cylinder barrel, and the other end is located at damping
Piston rod 4 outside cylinder barrel.
Further, described damping cylinder barrel includes cylinder cap 1, cylinder barrel 3, floating piston 5 and cylinder bottom 7.The fixing weldering of described cylinder cap 1
It is connected on the top of described cylinder barrel 3, described piston rod 4 enters in cylinder barrel 3, between piston rod 4 and cylinder cap 1 through described cylinder cap 1
It is provided with cylinder cap sealing ring 2.Described floating piston 5 is located in the cylinder barrel 3 of described coil block bottom, described floating piston 5 and resistance
It is provided with floating piston sealing ring 6 between Buddhist nun's cylinder barrel, form dynamic sealing with cylinder barrel and be connected.Described cylinder bottom 7 is fixedly welded on described cylinder
The bottom of cylinder 3；Form magnetorheological sap cavity, described cylinder bottom 7, floating piston 5 and between described floating piston 5, cylinder cap 1 and cylinder barrel 3
Form energy storage chamber, accumulation of energy intracavity is filled with nitrogen, and when stretching for compensating piston bar, the volume of magnetorheological sap cavity becomes between cylinder barrel 3
Change.
As Figure 1-Figure 5, described piston rod 4 be located at damping cylinder barrel in end be fixed with unidirectional damping piston component and
Coil block.Described unidirectional damping piston component includes damping piston 15, spring leaf 16 and pad 17.Described pad 17, spring
Piece 16 and damping piston 15 are fixed on the end of described piston rod 4, described damping piston 15 and damping cylinder barrel successively from top to bottom
Between be provided with damping piston sealing ring 14.Described pad 17 is used for increasing the contact area of described spring leaf and described piston rod,
Preventing because contact area is too small causes spring leaf to damage；Described coil block is fixed on the work of described damping piston 15 downside
On stopper rod 4, around described damping piston 15 axle center be respectively separated be provided with several first annular vias 151 and several the
Two annular vias 152, in the present embodiment, described first annular via 151 and the second annular via 152 are respectively equipped with four,
Certainly can also be other numbers.
Described second annular via 152 is located at the outside of described first annular via 151 and described second annular via 152
Aperture be more than the first annular via 151 aperture, as shown in Figure 3.As shown in figure 5, with described on described spring leaf 16
The corresponding position of one annular via 151, is provided with the spring leaf annular via 161 being connected respectively with the first annular via 151, and
Second annular via 152 is covered by spring leaf 16；As shown in figure 1, on described coil block with described first annular via 151
Corresponding position, is provided with the magnetic flow liquid passage being connected respectively with the first annular via 151, and described coil block is not by institute
State the second annular via 152 to cover.
As shown in figure 1, described coil block includes gland 8, iron core 9, magnetic conduction iron hoop 10, solenoid 11, coil jackets
12 and flux sleeve 13.The periphery of described iron core 9 is wound with solenoid 11, and the outside of solenoid 11 is arranged with coil jackets 12,
Magnetic conduction iron hoop 10 and the lower end location fit of iron core 9；Gland 8 is fixed on the lower end of described iron core 9, and gland 8 is provided with gland ring
Shape through hole 802, the aperture of described gland annular via 802 and position are identical with described first annular via 151；Flux sleeve 13 is protected
Hold the outside being sheathed on described iron core 9 in gap, and its upper surface is coordinated with damping piston 15, lower surface is coordinated with gland 8；Bullet
Gap between reed annular via 161, the first annular via 151, flux sleeve 13 and iron core 9 and gland annular via 802 according to
Secondary connection forms magnetic flow liquid passage.
Specifically, the part concrete structure in the present invention is as follows：
As shown in figure 9, the lower end of described piston rod 4 is provided with positioning shaft shoulder 402 and external screw thread 401.As shown in figure 1, it is described
The centre bore that the lower end of piston rod 4 sequentially passes through the centre bore of pad 17, the centre bore of spring leaf 16 and damping piston 15 passes through
External screw thread 401 is threadeded with the iron core 9 on coil block, and described pad 17 is connected in described positioning shaft shoulder 402.
As shown in fig. 6, the top and bottom of described flux sleeve 13 are respectively equipped with flux sleeve hole shoulder 131, described flux sleeve 13
Coordinated with damping piston 15 and gland 8 respectively by flux sleeve hole shoulder 131.
As shown in fig. 7, the top of described iron core 9 is provided with the iron core shaft shoulder 901, axle center is provided with centre bore, and center in the hole is provided with
Female thread 904, middle part is provided with the solenoid fairlead 903 being connected with centre bore, and bottom is provided with collar 902, coil jackets
12 pass through the iron core shaft shoulder 901, collar 902 and iron core 9 location fit, and the lead of solenoid draws through the solenoid on iron core 9
Portal 903 and piston rod 4 centre bore draw.
As shown in figure 8, described gland 8 includes the lobe positioned at upside and the base portion being fixed on the downside of lobe, institute
The periphery stating lobe is provided with gland screw thread 801, and described base portion is provided with the gland shaft shoulder 803, described gland annular via 802
It is arranged in described base portion.Described gland 8 is connected with the female thread 904 of iron core 9 center in the hole by gland screw thread 801, institute
State filling with sealant 18 between the inner threaded surface of upper surface, the lower surface of piston rod 4 and iron core 9 of gland screw thread 801.
In the present invention, described iron core 9, magnetic conduction iron hoop 10, the making material of flux sleeve 13 are high magnetic permeability soft magnetic materials, resistance
Buddhist nun's piston 15, gland 8, coil jackets 12 adopt non-magnet_conductible material to make.As shown in Figure 10, during solenoid 11 energising, by shape
Become the flux loop of diagram（The loop being formed shown in arrow）, thus between flux sleeve 13 and iron core 9 and magnetic conduction iron hoop 10
Annular gap in formed perpendicular to magnetic flow liquid flow direction magnetic field, when damping piston 15 moves upwards, due to epicoele
The pressure effect of magnetic flow liquid, the second annular via 152 is sealed by spring leaf 16, therefore magnetic flow liquid can only be from the first annular via
The 151 magnetic flow liquid passages flowing into and through on coil block flow to lower chamber, thus producing certain damping force, by adjusting
Magnetic field intensity, it is possible to achieve the regulation of damping force；When damping piston 15 moves downward, the pressure of lower chamber backs down spring leaf
16, the second annular via 152 is in open mode, because the second annular via 152 gap is larger, therefore most magnetic flow liquid
It flow to upper cavity through the second annular via 152, simultaneously because damping piston 15 is non-magnet_conductible material, the second annular via 152
Interior will not produce magnetic rheology effect, thus the damping force very little producing, thus realize the unidirectional damping characteristic of MR damper.
Described antivibrator is a kind of MR damper with unidirectional damping characteristic, has in the damping of a certain direction of motion
Power very little, the adjustable feature of another direction of motion damping force, dashed forward by a direction therefore, it is possible to give full play to vibration absorber
The cushioning effect of spring when so impacting, simultaneously because unidirectional damping characteristic is adjustable, therefore antivibrator has good vibration isolation, vibration damping
Effect, and have the advantages that applied widely.
Claims (10)
1. a kind of MR damper with unidirectional damping characteristic, including damping cylinder barrel, the lower end of described damping cylinder barrel is provided with
Floating piston（5）, floating piston（5）Upper surface and damping cylinder barrel between be magnetorheological sap cavity, be provided with magnetic flow liquid in it, institute
State damping cylinder barrel upper end be provided with one end extend to damping cylinder barrel in, the other end be located at damping cylinder barrel outside piston rod（4）, it is special
Levy and be：Described piston rod（4）The end being located in damping cylinder barrel is fixed with unidirectional damping piston component and coil block, described
Unidirectional damping piston component includes damping piston（15）, spring leaf（16）And pad（17）, described pad（17）, spring leaf（16）
And damping piston（15）It is fixed on described piston rod successively from top to bottom（4）End, described coil block is fixed on described resistance
Buddhist nun's piston（15）The piston rod of downside（4）On, around described damping piston（15）Axle center be respectively separated be provided with several
One annular via（151）With several the second annular vias（152）, described second annular via（152）Positioned at described first ring
Shape through hole（151）Outside and described second annular via（152）Aperture be more than the first annular via（151）Aperture,
Described spring leaf（16）Above with described first annular via（151）Corresponding position, be provided with respectively with the first annular via（151）
The spring leaf annular via being connected（161）, and spring leaf（16）By the second annular via（152）Cover；In described coil group
With described first annular via on part（151）Corresponding position, be provided with respectively with the first annular via（151）The magnetic current being connected
Become liquid passage, and described coil block is not by described second annular via（152）Cover.
2. there is the MR damper of unidirectional damping characteristic as claimed in claim 1 it is characterised in that：Described damping cylinder barrel
Including cylinder cap（1）, cylinder barrel（3）, floating piston（5）And cylinder bottom（7）, described cylinder cap（1）It is fixedly welded on described cylinder barrel（3）Top
Portion, described floating piston（5）Cylinder barrel positioned at described coil block bottom（3）Interior, and be connected with cylinder barrel dynamic sealing, described cylinder bottom
（7）It is fixedly welded on described cylinder barrel（3）Bottom；Described floating piston（5）, cylinder cap（1）And cylinder barrel（3）Between formed magnetorheological
Sap cavity, described cylinder bottom（7）, floating piston（5）And cylinder barrel（3）Between formed energy storage chamber, accumulation of energy intracavity is filled with nitrogen, for compensating
The change in volume of magnetorheological sap cavity when piston rod stretches.
3. there is the MR damper of unidirectional damping characteristic as claimed in claim 1 it is characterised in that：Described piston rod
（4）Lower end be provided with positioning shaft shoulder（402）And external screw thread（401）, described piston rod（4）Lower end sequentially pass through pad（17）'s
Centre bore, spring leaf（16）Centre bore and damping piston（15）Centre bore pass through external screw thread（401）On coil block
Iron core（9）Threaded, described pad（17）It is connected to described positioning shaft shoulder（402）On.
4. there is the MR damper of unidirectional damping characteristic as claimed in claim 1 it is characterised in that：Described coil block
Including gland（8）, iron core（9）, magnetic conduction iron hoop（10）, solenoid（11）, coil jackets（12）And flux sleeve（13）, described ferrum
Core（9）Periphery be wound with solenoid（11）, solenoid（11）Outside be arranged with coil jackets（12）, magnetic conduction iron hoop（10）
With iron core（9）Lower end location fit, gland（8）It is fixed on described iron core（9）Lower end, gland（8）It is provided with gland ring-type
Through hole（802）, described gland annular via（802）Aperture and position and described first annular via（151）Identical, flux sleeve
（13）Keep gap is sheathed on described iron core（9）Outside, and its upper surface and damping piston（15）Cooperation, lower surface and pressure
Lid（8）Cooperation, spring leaf annular via（161）, the first annular via（151）, flux sleeve（13）With iron core（9）Between gap with
And gland annular via（802）It is sequentially communicated formation magnetic flow liquid passage.
5. there is the MR damper of unidirectional damping characteristic as claimed in claim 4 it is characterised in that：Described iron core（9）
Top be provided with the iron core shaft shoulder（901）, axle center is provided with centre bore, and center in the hole is provided with female thread（904）, middle part is provided with and center
The solenoid fairlead that hole is connected（903）, bottom is provided with collar（902）, coil jackets（12）By the iron core shaft shoulder
（901）, collar（902）With iron core（9）Location fit, the lead of solenoid is through iron core（9）On solenoid fairlead
（903）And piston rod（4）Centre bore draw.
6. there is the MR damper of unidirectional damping characteristic as claimed in claim 4 it is characterised in that：Described gland（8）
Including the lobe positioned at upside and the base portion being fixed on the downside of lobe, the periphery of described lobe is provided with gland screw thread
（801）, described base portion is provided with the gland shaft shoulder（803）, described gland annular via（802）It is arranged in described base portion.
7. there is the MR damper of unidirectional damping characteristic as claimed in claim 6 it is characterised in that：Described gland（8）
By gland screw thread（801）With iron core（9）The female thread of center in the hole（904）Connect, described gland screw thread（801）Upper end
Face, piston rod（4）Lower surface and iron core（9）Inner threaded surface between filling with sealant（18）.
8. there is the MR damper of unidirectional damping characteristic as claimed in claim 4 it is characterised in that：Described iron core（9）、
Magnetic conduction iron hoop（10）, flux sleeve（13）Making material be high magnetic permeability soft magnetic materials, damping piston（15）, gland（8）, coil
Sheath（12）Made using non-magnet_conductible material.
9. there is the MR damper of unidirectional damping characteristic as claimed in claim 4 it is characterised in that：Described flux sleeve
（13）Top and bottom be respectively equipped with flux sleeve hole shoulder（131）, described flux sleeve（13）Takeed on by flux sleeve hole（131）Respectively
With damping piston（15）And gland（8）Cooperation.
10. there is the MR damper of unidirectional damping characteristic as claimed in claim 1 it is characterised in that：Described floating is lived
Plug（5）It is provided with floating piston sealing ring and damping cylinder barrel between（6）；Described damping piston（15）It is provided with resistance and damping cylinder barrel between
Buddhist nun's piston packing（14）；Described piston rod（4）It is provided with cylinder cap sealing ring and damping cylinder barrel between（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610313665.7A CN105736624B (en) | 2016-05-12 | 2016-05-12 | Magneto-rheological damper with unidirectional damping property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610313665.7A CN105736624B (en) | 2016-05-12 | 2016-05-12 | Magneto-rheological damper with unidirectional damping property |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105736624A CN105736624A (en) | 2016-07-06 |
| CN105736624B true CN105736624B (en) | 2017-02-22 |
Family
ID=56288505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610313665.7A Active CN105736624B (en) | 2016-05-12 | 2016-05-12 | Magneto-rheological damper with unidirectional damping property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105736624B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594160B (en) * | 2017-02-10 | 2018-12-14 | 哈尔滨工业大学 | Folding flow-type MR damper with wide adjustable extent |
| CN109099104B (en) * | 2018-10-17 | 2020-11-03 | 哈尔滨工业大学 | Water-cooling temperature-control fluid damper |
| CN110986188B (en) * | 2019-11-13 | 2020-11-24 | 珠海格力电器股份有限公司 | Variable rigidity callus on sole, compressor and air conditioner |
| CN112815031A (en) * | 2021-02-05 | 2021-05-18 | 大连理工大学 | Viscous damper for one-way non-return movement of liquid |
| CN113508690A (en) * | 2021-05-08 | 2021-10-19 | 河南科技大学 | Flexible threshing device capable of automatically adjusting threshing gap |
| CN113790243B (en) * | 2021-10-08 | 2022-10-18 | 浙江路得坦摩汽车部件股份有限公司 | Damping piston of magnetorheological shock absorber and production process thereof |
| CN114483863A (en) * | 2022-01-27 | 2022-05-13 | 株洲时代新材料科技股份有限公司 | Magneto-rheological damper |
| CN114718977B (en) * | 2022-05-06 | 2024-01-26 | 重庆大学 | Magnetorheological oil-gas spring |
| CN114857199B (en) * | 2022-05-07 | 2023-06-13 | 北京理工大学 | Small adjustable large damping linear damper |
| CN114947984A (en) * | 2022-05-20 | 2022-08-30 | 江苏启灏医疗科技有限公司 | Safe type biopsy device |
| CN114909423A (en) * | 2022-06-21 | 2022-08-16 | 集美大学 | Novel magnetorheological suspensions attenuator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6135434A (en) * | 1998-02-03 | 2000-10-24 | Fox Factory, Inc. | Shock absorber with positive and negative gas spring chambers |
| CN101915281A (en) * | 2010-07-19 | 2010-12-15 | 谭和平 | Single-rod magnetorheological damper with one-way channel |
| CN202790299U (en) * | 2012-09-17 | 2013-03-13 | 成都市翻鑫家科技有限公司 | Novel magnetorheological fluid bumper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8051961B2 (en) * | 2007-10-30 | 2011-11-08 | Honda Motor Co., Ltd. | Magneto-rheological damper |
-
2016
- 2016-05-12 CN CN201610313665.7A patent/CN105736624B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6135434A (en) * | 1998-02-03 | 2000-10-24 | Fox Factory, Inc. | Shock absorber with positive and negative gas spring chambers |
| CN101915281A (en) * | 2010-07-19 | 2010-12-15 | 谭和平 | Single-rod magnetorheological damper with one-way channel |
| CN202790299U (en) * | 2012-09-17 | 2013-03-13 | 成都市翻鑫家科技有限公司 | Novel magnetorheological fluid bumper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105736624A (en) | 2016-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105736624B (en) | Magneto-rheological damper with unidirectional damping property | |
| CN105065559B (en) | Parallel channel MR damper | |
| CN205618595U (en) | Magneto rheological damper with one -way damping characteristic | |
| CN104315073B (en) | Variable-stiffness variable-damping shock absorber based on magnetorheological damper | |
| CN201875043U (en) | Slide-valve-type magnetorheological shock absorber | |
| CN103352956B (en) | The MR damper of asymmetric controllable damping characteristic | |
| CN105240444B (en) | Magneto-rheological vibration damper based on parallel-connection structure | |
| WO2021104185A1 (en) | Self-sensing separated dual-cylinder magnetorheological damper | |
| CN103470674B (en) | A kind of Inner-channel vehicle suspension system magnetorheological damper | |
| CN109235688A (en) | A kind of magnetorheological half active stiffness adjustable shock absorber | |
| CN110778636B (en) | Bidirectional independent controllable magneto-rheological damper | |
| CN104033525B (en) | Large damping force MR damper | |
| CN107228150A (en) | A kind of damper with two-way pressure limiting piston | |
| CN108561486A (en) | A kind of novel anti-settling magnetic rheological liquid damper | |
| CN108302149A (en) | Using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet | |
| CN105780958B (en) | A method of anti-impact vibration damping is carried out using STF and MRF combined type anti-impact oscillation damping and energy dissipating dampers | |
| CN208519105U (en) | A kind of double bar-type magneto-rheological dampers out extending damp channel length | |
| CN207454650U (en) | A kind of combined type MR vibration damper | |
| CN105508494B (en) | Shock resistance MR damper | |
| CN102927191A (en) | Coil internally-installed type magnetorheological damper with oil needle | |
| CN206468738U (en) | Using the two-channel magnetorheological damper in double acting magnetic field | |
| CN104214264A (en) | Damping/stiffness-adjustable hydraulic damper of multidimensional vibration damping platform | |
| CN113864381B (en) | Biconical asymmetric force magneto-rheological damper | |
| CN206802174U (en) | Vehicle suspension Novel magneto-rheological damper with bypass fluid course | |
| CN106594160A (en) | Foldable flowing magnetorheological damper with wide adjustable range |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |