CN109611498A - Set binary channels bitubular anti-settling MR damper in bottom - Google Patents
Set binary channels bitubular anti-settling MR damper in bottom Download PDFInfo
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- CN109611498A CN109611498A CN201811367739.0A CN201811367739A CN109611498A CN 109611498 A CN109611498 A CN 109611498A CN 201811367739 A CN201811367739 A CN 201811367739A CN 109611498 A CN109611498 A CN 109611498A
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- piston
- damper
- settling
- bitubular
- wall
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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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- 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
- F16F9/3214—Constructional features of pistons
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of bottoms to set binary channels bitubular anti-settling MR damper, including outer cylinder, inner cylinder, pilot seal component, magnetic circuit component and piston component.The present invention can internally, external damping channel realize and control respectively, compression is provided and restores the independent damping characteristic of stroke, can also realize bigger damping force by being controlled simultaneously double magnet exciting coils；Based on the independent damping characteristic that double damper channels independent control is realized, accessible cubage compensation may be implemented, avoid generating model center building distortion；The current global mechanism flowing that magnetorheological fluid can be formed, forms strong redisperse effect to the magnetorheological fluid after sedimentation, device is made preferably to adapt to possible long-term standing operating condition.
Description
Technical field
The present invention relates to damper field, in particular to binary channels bitubular anti-settling MR damper is set at a kind of bottom.
Background technique
Magnetorheological fluid is by high magnetic permeability, low hysteresis soft magnetic particles as dispersed phase, non-magnetic liquid conduct
The suspended substance that carrier fluid mixes, this suspended substance show the Newtonian fluid characteristic of low viscosity under zero magnetic field condition, and
Under strong magnetic field action, then the Bingham bulk properties of high viscosity, low-flow is showed.Damper based on magnetorheological fluid exists
The fields such as Vibration of Vehicle Suspensions control, building and bridge cable vibration suppression, artillery recoil power cushioning control, transmission control obtain
Extensive concern is arrived.
Magnetorheological fluid sedimentation problem can not avoid completely, and the sedimentation that MR damper must successfully manage magnetorheological fluid is asked
Topic needs the flowing for making every effort to realize magnetorheological fluid through magnetorheological fluid sedimentation region in the runner design of damper, makes magnetorheological
Liquid is dispersed with stirring effect by good, improves the standing recovery capability of MR damper.
MR damper changes the apparent viscosity of wherein magnetorheological fluid by the magnetic field strength in control damp channel,
Realize the regulation to device damping characteristic.In a large amount of case study, there are Severe distortion, dynamic range are too small for model center building
Magnetorheological damping device belong to design failure.In successful cases of design, the MR damper including Magneride system
Inside, regardless of single double-barrel structure or cubage compensation mode, damp channel is set to piston region by the overwhelming majority, for producing
The coil of raw excitation field is located in piston, and moves together with piston, and lead is drawn by piston rod, and it is strong to reduce piston rod
Degree, processing technology is poor, has carried out great technique to MASS ELEMENT OF MAGNETORHEOLOGICAL DAMPER and has perplexed, and has been unfavorable for the effective of MR damper
Maintenance.In addition, these structure types are also possible to carry out following problem to MASS ELEMENT OF MAGNETORHEOLOGICAL DAMPER:
(1) dynamic range is not wide enough.No matter current excitation situation, magnetorheological fluid is linked up up and down by unique damp channel
Chamber mutually restricts between viscous damping force and the design of Coulomb damping power.In order to improve dynamic range, it is viscous to reduce to increase damping clearance
Stagnant damping necessarily leads to the reduction of Coulomb damping；And reduce gap and improve Coulomb damping, viscous damping is necessarily excessive.
(2) cubage compensation effect is limited.Upper and lower cavity is linked up due to only having unique passage, when compression travel applies to damper
When high current motivates, damp channel flow resistance is big, causes magnetorheological fluid that cannot pass through, cubage compensation is not in time and upper
Chamber forms vacuum, and piston takes the lead in filling a vacuum and leading to damping force idle running when commutating, and forms model center building distortion.
(3) it stands restorative bad.It is located at cylinder barrel bottom after the sedimentation of magnetorheological fluid part, due to lacking through decanting zone
Damp channel can not form strong stirring scouring effect, cannot effectively disperse the magnetic-particle settled, after long-term standing
It is easy to that damper is caused to fail.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of bottoms to set binary channels bitubular anti-settling MR damper, energy
It is enough that damp channel realization is controlled respectively, independent damping characteristic is provided, damper can also needed to provide larger damping force
When, by controlling realization simultaneously to double magnet exciting coils；It, can based on the independent damping characteristic that double damper channels independent control is realized
To realize accessible cubage compensation, avoid generating model center building distortion；The current global mechanism flowing that magnetorheological fluid can be formed, to sedimentation
Magnetorheological fluid afterwards forms strong redisperse effect, and device is made preferably to adapt to possible long-term standing operating condition.
Binary channels bitubular anti-settling MR damper is set at bottom of the invention, including outer cylinder, inner cylinder, pilot seal component I,
Magnetic circuit component and piston component；
Inner cylinder coaxial arrangement is formed with flow passage chamber in outer cylinder between inner tank theca and outer tube inner wall；
The pilot seal component I and magnetic circuit component are respectively arranged at outer cylinder both ends, and the pilot seal component I includes setting
The guide holder that is placed in outer cylinder for be oriented to piston component and the sealing element for being fixed on outer cylinder end, described guide holder one end and
Inner cylinder one end abuts, and the guide holder other end abuts with sealing element, and the magnetic circuit component includes pedestal, magnetic yoke, interior loop and outside
Coil, the pedestal is fixed on outer cylinder end, and pedestal is equipped with axially extending newel, institute towards one end center in outer cylinder
It states magnetic yoke to be sheathed on outside newel, magnetic yoke one end is connect by the boss that its end face is equipped with pedestal, and magnetic yoke end face and pedestal are made
Between form bottom cavity, the magnetic yoke other end is abutted with the inner cylinder other end, be formed between the magnetic yoke inner wall and center column wall with
The interior damp channel of bottom cavity connection, is formed with the extrernal resistance being connected to respectively with bottom cavity and flow passage chamber between magnetic yoke outer wall and outer tube inner wall
Buddhist nun channel, the interior loop are wound in outside newel, and the exterior loop is wound in outside magnetic yoke；
The inner cylinder inner wall and newel, magnetic yoke are enclosed working chamber between guide holder, and the piston component is along axial
It is slidably disposed in working chamber, and working chamber is separated to form mutually independent right working chamber and left working chamber, the right side
The cavity wall of working chamber is equipped with the recirculation hole being connected to flow passage chamber, and the left working chamber is connected to interior damp channel；
The piston component includes piston and piston rod, and the piston is open at one end, hollow structure closed at one end, institute
It states piston rod one end to protrude into piston across piston closed end, be fixedly connected with the piston, the piston rod other end sequentially passes through guiding
Seat and sealing element stretch out outside outer cylinder, and being provided in the piston floating piston and can be used to support floating in axial sliding along piston
The compressed spring of piston, the confined space that the floating piston, piston closed end and piston inner wall enclose jointly, which is formed, to be held
The variable compensated cavity of product, the compressed spring are located in compensated cavity, and the piston open end is connected to left working chamber.
Further, the sealing element is oil sealing, and the lead of the interior loop and exterior loop both passes through pedestal and draws pedestal
Outside.
Further, the outer cylinder, newel, magnetic yoke are permeability magnetic material.
Further, the floating piston is open at one end, hollow structure closed at one end, the open end court of the floating piston
To the closed end of piston, described compressed spring one end falls into floating piston and is resisted against floating piston closed end, compressed spring
The other end is resisted against piston closed end.
Further, pilot seal component II is provided between the floating piston outer wall and piston inner wall, the guiding is close
Sealing assembly II includes the guide ring and O-ring seal for being sheathed on floating piston outer wall, and it is close that the guide ring is located at floating piston
One end of open end, the O-ring seal are located at floating piston close to one end of closed end.
Further, the guide ring is made of polytetrafluoroethylene material.
Further, the open end of the piston is provided with the locating part for limiting to floating piston, the locating part with
Removable mode is set to piston open end.
Further, the locating part is annular retaining ring, which connect with piston open end inner thread, and
Edge is axially arranged with auxiliary mounting hole on annular retaining ring.
Further, piston closed end center is equipped with the via hole passed through for piston rod, and the piston rod protrudes into piston
One end be external thread section, the external thread section of piston rod passes through via hole and is located in piston, and the lock by cooperating with external thread section
Nut component is fixedly connected with the piston.
Further, piston closed end side is equipped with venthole, is provided with sealing screw in the venthole.
Beneficial effects of the present invention: binary channels bitubular anti-settling MR damper is set at bottom of the invention, is set the bottom of using double
The structure of damp channel and double magnet exciting coils can realize damp channel and control respectively, provide independent damping characteristic, can also
With when needing damper to provide larger damping force, by controlling realization simultaneously to double magnet exciting coils.
The structure that damp channel and magnet exciting coil are set the bottom of using is drawn excitation wires with can be convenient by pedestal, overcome
Traditional MR damper draws the difficulty of excitation wires by elongated hole in piston rod, substantially increases the processing of damper
Craftsmanship.
By the way that piston component is arranged, cooperated using compressed spring and floating piston, without inflation, therefore the peace of damper
It is unrestricted to fill use direction.Based on the independent damping characteristic that double damper channels independent control is realized, may be implemented accessible
Cubage compensation avoids generating model center building distortion.In compression travel, interior damp channel is controlled to obtain controllable damping characteristic
Meanwhile not external damp channel applies exciting current and keeps compensation channel unimpeded；When restoring stroke, external damping channel is controlled
While to obtain controllable damping characteristic, not internal damp channel applies exciting current and keeps compensation channel unimpeded, thus real
Now perfect cubage compensation, avoids model center building from distorting.It, can be by simultaneously when needing damper to provide bigger damping force
Double damp channels are controlled to realize.
The present invention can also form the current global mechanism flowing of magnetorheological fluid, make magnetorheological fluid flowing through positioned at left working chamber end
The settling zone in portion forms strong redisperse effect to the magnetorheological fluid after sedimentation, device is made preferably to adapt to possible length
Phase stands operating condition.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of magnetic yoke of the present invention；
Fig. 3 is the structural schematic diagram of pedestal of the present invention；
Fig. 4 is inventive piston component diagram；
Fig. 5 is another embodiment of the invention；
Specific embodiment
As shown in Figures 1 to 4: binary channels bitubular anti-settling MR damper is set at the bottom of the present embodiment, including outer cylinder 1,
Inner cylinder 4, pilot seal component I, magnetic circuit component and piston component；
The inner cylinder 4 coaxial arrangement is formed with flow passage chamber 24 between 1 inner wall of 4 outer wall of inner cylinder and outer cylinder in outer cylinder 1；
The pilot seal component and magnetic circuit component are respectively arranged at 1 both ends of outer cylinder, and the pilot seal component I includes setting
It is placed in the guide holder 3 in outer cylinder 1 being used to be oriented to piston component and the sealing element 2 for being fixed on 1 end of outer cylinder, the guide holder 3
One end is abutted with 4 one end of inner cylinder, and 3 other end of guide holder is abutted with sealing element 2, the magnetic circuit component include pedestal 14, magnetic yoke 11,
Interior loop 13 and exterior loop 12, the pedestal 14 are fixed on 1 end of outer cylinder, and pedestal 14 is towards one end center in outer cylinder 1
Equipped with axially extending newel, the magnetic yoke 11 is sheathed on outside newel, the boss that 11 one end of magnetic yoke is equipped with by its end face
It is connect with pedestal 14, makes to form bottom cavity 10 between 11 end face of magnetic yoke and pedestal 14,11 other end of magnetic yoke is supported with 4 other end of inner cylinder
It connects, the interior damp channel 25 being connected to bottom cavity 10,11 outer wall of magnetic yoke is formed between 11 inner wall of magnetic yoke and center column wall
The external damping channel 26 being connected to respectively with bottom cavity 10 and flow passage chamber 24 is formed between 1 inner wall of outer cylinder, the interior loop 13 twines
It is around in outside newel, the exterior loop 12 is wound in outside magnetic yoke 11；Pedestal 14 is recessed equipped with cooperating with boss in the present embodiment
Slot enables to form positioning in boss partial insertion groove.
4 inner wall of inner cylinder and newel, magnetic yoke 11 are enclosed working chamber, the piston component edge between guide holder 3
Axially slidable setting is separated to form mutually independent right working chamber 27 and left working chamber in working chamber, and by working chamber
28, the cavity wall of the right working chamber 27 is equipped with the recirculation hole 29 being connected to flow passage chamber 24, the left working chamber 28 and interior damping
Channel 25 is connected to；It is powered by controlling inside and outside coil respectively, can realize the magnetic field control of inside and outside damp channel 26 respectively.Bottom
Seat, magnetic yoke and outer cylinder need to be using the good material processing of magnetic conductivity；When interior loop energization exterior loop no power, only damp inside logical
Road 25 generates magnetic field, the magnetic loop of formation are as follows: base center column, interior damp channel 25, magnetic yoke, interior damp channel 25 return bottom
Seat newel forms the magnetic field perpendicular to magnetorheological flow direction in interior damp channel 25；When exterior loop energization interior loop not
It is powered, only in outer damp channel 26 generates stronger magnetic field, the magnetic loop of formation are as follows: is magnetic yoke, external damping channel 26, outer cylinder, outer
Damp channel 26 returns magnetic yoke, and the magnetic field perpendicular to magnetorheological flow direction is formed in outer damp channel 26.
The piston component includes piston 6 and piston rod 5, and the piston 6 is open at one end, hollow knot closed at one end
Structure, described 5 one end of piston rod pass through piston closed end and protrude into piston 6, be fixedly connected with piston 6,5 other end of piston rod is successively
It is stretched out outside outer cylinder 1 across guide holder 3 and sealing element, being provided in the piston 6 can be along piston 9 He of floating piston in axial sliding
It is used to support the compressed spring 8 of floating piston 9, what the floating piston 9, piston closed end and piston inner wall enclosed jointly
Confined space forms the compensated cavity 30 of variable volume, and the compressed spring 8 is located in compensated cavity 30, the piston open end and a left side
Working chamber 28 is connected to；When piston rod 5 is moved downward with piston, piston rod 5 enters inner cylinder, since the piston rod 5 of entrance accounts for
According to certain volume, so that working chamber internal volume is reduced, simultaneously because working media is incompressible in working chamber, cause piston left
The pressure of working chamber 28 increases, and the pressure of increase acts on floating piston 9, compresses floating piston 9 to compressed spring 8,
And then move right floating piston 9, that is, reduce the volume of compensated cavity 30, so that the volume for conceding compensated cavity 30 is for compensating
The interior volume of reduction due to the entrance of piston rod 5 of working chamber；Conversely, when piston rod 5 is moved right with piston, piston rod 5
Working chamber is exited, since the piston rod 5 exited discharges certain volume, so that working chamber internal volume increases, the left work of piston at this time
Make the decline of 28 pressure of chamber, reduced pressure acts on floating piston 9, mechanical balance can not be kept with compressed compressed spring 8,
It upholds compressed spring 8 and floating piston 9 is driven to move downward, and then compensated cavity 30 is made to be returned to original volume, to fill up
Since piston rod 5 exits and increased volume in working chamber, compensation working chamber internal volume caused by piston rod 5 moves is realized
The purpose of variation.It is provided with bronze antifriction annulus between the guide holder 3 and piston rod 5 of the present embodiment, to improve guide support effect
Fruit, and sealing effect is good.
The structure of double damp channels and double magnet exciting coils is set the bottom of using, damp channel can be realized and be controlled respectively, provided
Independent damping characteristic, can also be when needing damper to provide larger damping force, by controlling reality simultaneously to double magnet exciting coils
It is existing.
The structure that damp channel and magnet exciting coil are set the bottom of using is drawn excitation wires with can be convenient by pedestal, overcome
Traditional MR damper draws the difficulty of excitation wires by elongated hole in piston rod, substantially increases the processing of damper
Craftsmanship.
By the way that piston component is arranged, cooperated using compressed spring and floating piston, without inflation, therefore the peace of damper
It is unrestricted to fill use direction.Based on the independent damping characteristic that double damper channels independent control is realized, may be implemented accessible
Cubage compensation avoids generating model center building distortion.In compression travel, interior damp channel 25 is controlled to obtain controllable damping characteristic
While, not external damp channel 26 applies exciting current and keeps compensation channel unimpeded；When restoring stroke, external damping is controlled
While channel 26 is to obtain controllable damping characteristic, not internal damp channel 25 applies exciting current and keeps compensation channel smooth
It is logical, to realize perfect cubage compensation, model center building is avoided to distort.It, can when needing damper to provide bigger damping force
It is realized with passing through while controlling double damp channels.
The present invention can also form the current global mechanism flowing of magnetorheological fluid, make magnetorheological fluid flowing through positioned at left working chamber 28
The settling zone of end forms strong redisperse effect to the magnetorheological fluid after sedimentation, adapts to device preferably possible
It is long-term to stand operating condition.
In the present embodiment, the sealing element is oil sealing 2, and the lead of the interior loop 13 and exterior loop 12 both passes through pedestal 14
And draw outside pedestal 14, it is convenient for assembly convenient for wiring, excitation wires are drawn with can be convenient by pedestal, overcome traditional magnetic
Rheological damper draws the difficulty of excitation wires by elongated hole in piston rod, substantially increases the processing technology of damper.
In the present embodiment, the outer cylinder 1, newel, magnetic yoke 11 are permeability magnetic material, in favor of forming stable magnetic field.
In the present embodiment, the floating piston 9 is open at one end, hollow structure closed at one end, which opens
Described 8 one end of compressed spring fell into floating piston 9 and was resisted against 9 closed end of floating piston towards the closed end of piston beginning,
8 other end of compressed spring is resisted against piston closed end, and when piston rod 5 moves in working chamber with piston, piston rod 5 is passed in and out
Working chamber causes working chamber internal volume to change, and working media generates the pressure of variation, and forces compression by floating piston 9
The compression of spring 8 is upheld, to change the volume of compensated cavity 30, to realize compensation since piston rod 5 moves caused working chamber
The purpose of internal volume variation.The floating piston 9 of the present embodiment is using the production of the light materials such as aluminium.
In the present embodiment, it is provided with pilot seal component II between 9 outer wall of floating piston and piston inner wall, it is described to lead
It include the guide ring 16 and O-ring seal 17 for being sheathed on 9 outer wall of floating piston to seal assembly II, the guide ring 16 is located at floating
Piston 9 is close to one end of open end, for being oriented to floating piston 9；The O-ring seal 17 is located at floating piston 9
Close to one end of closed end, to guarantee the sealing effect of floating piston 9.
In the present embodiment, the guide ring 16 is made of polytetrafluoroethylene material, improves steering capability, and is had certain
Sealing performance.
In the present embodiment, the open end of the piston is provided with the locating part for limiting to floating piston 9, the limit
Part is set to piston open end in removable mode, convenient for assembly and disassembly, replacement and maintenance.
In the present embodiment, the locating part is annular retaining ring 18,18 outer wall of annular retaining ring and piston open end inner wall spiral shell
Line connection, convenient for assembly and disassembly；And along auxiliary mounting hole is axially arranged on annular retaining ring 18, for being matched with special spanner, more
Conducive to assembly and disassembly, maintenance and replacement.
In the present embodiment, piston closed end center is equipped with the via hole passed through for piston rod 5, and the piston rod 5 protrudes into
One end in piston is external thread section, and the external thread section of piston rod 5 passes through via hole and is located in piston, and by matching with external thread section
The lock nut assembly of conjunction is fixedly connected with the piston, and realization piston rod 5 is connected and fixed with piston.The piston rod 5 of the present embodiment
Gap between via hole is sealed by sealant, and to guarantee sealing performance, lock nut assembly includes 7 He of locking nut
Elastic washer.
When the present invention assembles, the coiling interior loop 13 first on pedestal 14, and its lead is drawn outside pedestal, in magnetic yoke 11
Upper coiling exterior loop 12 draws its lead outside pedestal, and the groove of the boss of yoke bottom and base bottom is aligned and is installed
As shown in Figure 2,3, inner cylinder 4 is installed on magnetic yoke top；Outer cylinder 1 is connect in a manner of screw thread or welding etc. with pedestal 13, inside
Magnetorheological fluid is perfused in cylinder 4 to appropriate location；Piston rod 5 and piston 6 are connected with locking nut 7, and close in connecting portion smearing
Compressed spring 8 is put into 6 inner cavity of piston by sealing, after floating piston 9 is pressed into piston cavity after installing pilot seal component II,
Floating piston retaining ring 10 is installed, piston component is formed；Piston component is put into inner cylinder 4, and continues that magnetorheological fluid is perfused to inner cylinder 4
Until filling, it is successively inserted in guide holder 3 and sealing element on piston rod 5, the step surface of guide holder is supported on inner cylinder 4, is led
It is formed and is cooperated to the outer peripheral surface and outer cylinder of seat, after sealing element is installed in place, crimping processing is carried out to outer cylinder, damper has assembled
At.
Through above-mentioned installation step, there are air and compressed spring 8 in compensated cavity 30, when damper puts into operation, float and live
The power for filling in compressed spring and air compression generation, is respectively provided with linear and nonlinear feature.Alternatively, the piston closing
It holds side to be equipped with venthole, is provided with sealing screw 19 in the venthole, after the assembly of floating piston 9, under external force
After so that compressed spring 8 is realized suitable deformation, with 19 sealing ventilation hole of sealing screw, inner cylinder 4 is reloaded into after forming piston component
Magnetorheological fluid in, piston component at this time as shown in figure 4, include piston rod 5, sealing screw 19, piston 6, locking nut 7,
Compressed spring 8, guide ring 16, O-ring seal 17, floating piston 9 and annular retaining ring 18.
The present invention sets binary channels the bottom of using and cooperates double magnet exciting coils, and two damp channels can be carried out with individually control, real
Existing independent damping characteristic can also carry out while control to two damp channels, realize the output of big damping force.
The present invention is not limited only to above-described embodiment, as shown in figure 5, can be further simplified to the present invention, adopts
Control double damp channels simultaneously with unicoil, i.e. magnetic circuit component includes pedestal 14, right magnetic yoke 20, magnetism-isolating loop 21, coil 22, Zuo Ci
Yoke 23, wherein magnetism-isolating loop 21 is made by non-magnet material, with ensure coil 22 generate magnetic field including, outer tunnel be formed simultaneously it is vertical
Directly in the magnetic field in magnetorheological fluid flowing direction.Damp channel independent control will be lost using the damper of the present embodiment, formed only
The ability of vertical damping characteristic.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (10)
1. binary channels bitubular anti-settling MR damper is set at a kind of bottom, it is characterised in that: including outer cylinder, inner cylinder, pilot seal
Component I, magnetic circuit component and piston component；
Inner cylinder coaxial arrangement is formed with flow passage chamber in outer cylinder between inner tank theca and outer tube inner wall；
The pilot seal component I and magnetic circuit component are respectively arranged at outer cylinder both ends, and the pilot seal component I includes being set to
The guide holder for being used to be oriented to piston component in outer cylinder and the sealing element for being fixed on outer cylinder end, described guide holder one end and inner cylinder
One end abuts, and the guide holder other end abuts with sealing element, and the magnetic circuit component includes pedestal, magnetic yoke, interior loop and exterior loop,
The pedestal is fixed on outer cylinder end, and pedestal is equipped with axially extending newel, the magnetic towards one end center in outer cylinder
Yoke bush is set to outside newel, and magnetic yoke one end is connect by the boss that its end face is equipped with pedestal, is made between magnetic yoke end face and pedestal
Bottom cavity is formed, the magnetic yoke other end abuts with the inner cylinder other end, is formed between the magnetic yoke inner wall and center column wall and bottom cavity
It is logical to be formed with the external damping being connected to respectively with bottom cavity and flow passage chamber for the interior damp channel of connection between magnetic yoke outer wall and outer tube inner wall
Road, the interior loop are wound in outside newel, and the exterior loop is wound in outside magnetic yoke；
The inner cylinder inner wall and newel, magnetic yoke are enclosed working chamber between guide holder, and the piston component can be slided along axial
Dynamic setting is separated to form mutually independent right working chamber and left working chamber, the right work in working chamber, and by working chamber
The cavity wall of chamber is equipped with the recirculation hole being connected to flow passage chamber, and the left working chamber is connected to interior damp channel；
The piston component includes piston and piston rod, and the piston is open at one end, hollow structure closed at one end, the work
Stopper rod one end pass through piston closed end protrude into piston, be fixedly connected with the piston, the piston rod other end sequentially pass through guide holder and
Sealing element stretches out outside outer cylinder, and being provided in the piston floating piston and can be used to support floating piston in axial sliding along piston
Compressed spring, confined space that the floating piston, piston closed end and piston inner wall enclose jointly forms volume can
The compensated cavity of change, the compressed spring are located in compensated cavity, and the piston open end is connected to left working chamber.
2. binary channels bitubular anti-settling MR damper is set at bottom according to claim 1, it is characterised in that: the sealing
Part is oil sealing, and the lead of the interior loop and exterior loop both passes through pedestal and draws outside pedestal.
3. binary channels bitubular anti-settling MR damper is set at bottom according to claim 1, it is characterised in that: described outer
Cylinder, newel, magnetic yoke are permeability magnetic material.
4. binary channels bitubular anti-settling MR damper is set at bottom according to claim 1, it is characterised in that: the floating
Piston is open at one end, hollow structure closed at one end, and the open end of the floating piston is towards the closed end of piston, the compression
Spring one end falls into floating piston and is resisted against floating piston closed end, and the compressed spring other end is resisted against piston closed end.
5. binary channels bitubular anti-settling MR damper is set at bottom according to claim 4, it is characterised in that: the floating
Pilot seal component II is provided between piston outer wall and piston inner wall, the pilot seal component II includes being sheathed on floating to live
The guide ring and O-ring seal of wall beyond the Great Wall, the guide ring are located at floating piston close to one end of open end, the O-shaped sealing
Circle is located at floating piston close to one end of closed end.
6. binary channels bitubular anti-settling MR damper is set at bottom according to claim 5, it is characterised in that: the guiding
Ring is made of polytetrafluoroethylene material.
7. binary channels bitubular anti-settling MR damper is set at bottom according to claim 1, it is characterised in that: the piston
Open end be provided with the locating part for limiting to floating piston, the locating part is set to piston in removable mode and opens wide
End.
8. binary channels bitubular anti-settling MR damper is set at bottom according to claim 7, it is characterised in that: the limit
Part is annular retaining ring, which connect with piston open end inner thread, and auxiliary along being axially arranged on annular retaining ring
Help mounting hole.
9. binary channels bitubular anti-settling MR damper is set at bottom according to claim 8, it is characterised in that: the piston
Closed end center is equipped with the via hole passed through for piston rod, and it is external thread section, piston rod that the piston rod, which protrudes into one end in piston,
External thread section pass through via hole and be located in piston, and the fixed company of the lock nut assembly by cooperating with external thread section and piston
It connects.
10. binary channels bitubular anti-settling MR damper is set at bottom according to claim 7, it is characterised in that: the work
It fills in closed end side and is equipped with venthole, be provided with sealing screw in the venthole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811367739.0A CN109611498B (en) | 2018-11-16 | 2018-11-16 | Bottom-mounted double-channel double-cylinder anti-settling magnetorheological damper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811367739.0A CN109611498B (en) | 2018-11-16 | 2018-11-16 | Bottom-mounted double-channel double-cylinder anti-settling magnetorheological damper |
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| CN109611498A true CN109611498A (en) | 2019-04-12 |
| CN109611498B CN109611498B (en) | 2020-02-11 |
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| CN201811367739.0A Active CN109611498B (en) | 2018-11-16 | 2018-11-16 | Bottom-mounted double-channel double-cylinder anti-settling magnetorheological damper |
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| CN110388403A (en) * | 2019-07-17 | 2019-10-29 | 重庆大学 | Binary channels becomes used and holds variable damping damper |
| CN110778635A (en) * | 2019-09-23 | 2020-02-11 | 西安交通大学 | Anti-precipitation magnetorheological damper with stretching force larger than compression damping force |
| CN112555325A (en) * | 2020-10-28 | 2021-03-26 | 中国船舶重工集团公司第七0九研究所 | Multidirectional damping controllable magneto-rheological shock absorber |
| CN114412950A (en) * | 2021-12-13 | 2022-04-29 | 重庆大学 | Multistage excitation dual-cylinder magnetorheological damper and control method thereof |
| CN115681389A (en) * | 2022-09-22 | 2023-02-03 | 重庆大学 | Volume compensation structure of magnetorheological damper |
| CN115899144A (en) * | 2022-11-10 | 2023-04-04 | 阀源智能科技(杭州)有限公司 | Control valve actuating mechanism damper with damping adjustable function and method thereof |
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| CN115899144A (en) * | 2022-11-10 | 2023-04-04 | 阀源智能科技(杭州)有限公司 | Control valve actuating mechanism damper with damping adjustable function and method thereof |
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