CN109236936A - A kind of MR damper being sealed using elastic metallic bellows - Google Patents
A kind of MR damper being sealed using elastic metallic bellows Download PDFInfo
- Publication number
- CN109236936A CN109236936A CN201811335700.0A CN201811335700A CN109236936A CN 109236936 A CN109236936 A CN 109236936A CN 201811335700 A CN201811335700 A CN 201811335700A CN 109236936 A CN109236936 A CN 109236936A
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- Prior art keywords
- end cap
- bellows
- bobbin winder
- winder bracket
- dampened disk
- Prior art date
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- 238000013016 damping Methods 0.000 claims abstract description 59
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 230000007704 transition Effects 0.000 claims description 8
- 239000000696 magnetic material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 3
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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
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/361—Sealings of the bellows-type
Abstract
The invention discloses a kind of MR dampers being sealed using elastic metallic bellows, are mainly made of end cap, bellows, valve pocket, bobbin winder bracket, magnet exciting coil, dampened disk, braking roll and guiding axis etc..Valve pocket, bobbin winder bracket, magnet exciting coil and dampened disk constitute the magnetorheological valve type structure with mixed flow dynamic formula fluid course, form 4 sections of concatenated effective damping gaps under the function of current, increase effectively liquid stream relaxation length, improve the utilization rate of the magnetic line of force.Left and right end cap is fixedly connected by 4 guiding axis, and is driven by guiding axis along the pilot hole side-to-side movement on valve pocket.Static seal is carried out using elastic metallic bellows between end cap, the dynamic sealing friction of damper is eliminated, effectively increases damping force adjustable extent.MR damper damping force adjustable extent of the present invention is wide, and high-frequency vibration can be effectively isolated by carrying out elastic connection using bellows, the vibration insulating system especially suitable for transportation industry.
Description
Technical field
The present invention relates to a kind of MR damper more particularly to a kind of magnetic being sealed using elastic metallic bellows
Rheological damper.
Background technique
MR damper is a kind of Novel intelligent damper part being widely used in semi-active control aystem.It is main
By applying a certain size electric current to the magnet exciting coil on bobbin winder bracket in damper, generates magnetic field and pass through in fluid course
The yield strength of magnetorheological fluid change, so that dynamic changes output damping force.Millisecond possessed by MR damper
The characteristics of grade response speed, big control range and big damping force export, so that it becomes half outstanding active of industrial application
Performer.Currently, MR damper has been widely used in building and the vibration damping vibration prevention system of bridge, rail vehicles
And vibration damping of automobile suspension system etc..
Designed at present its liquid stream damp channel of MR damper is single annulus stream or radial flow arrangement mostly, and
It is all made of the moving sealed structure being made of piston and cylinder body.When work, change loading current size, is adjusted in damping clearance
Magnetic induction intensity, to realize the adjusting of MR damper damping force.When the magnetic induction intensity in damping clearance reaches full
And when, damper output damping force also reaches maximum.To improve damper maximum damping force and damping force adjustable extent, one
As realized by reducing damping clearance thickness or increasing effective damping gap length.Reduce damping clearance thickness be easy to appear because
The sedimentation phenomenon of magnetorheological fluid and block fluid course, failure when MR damper being caused to work；Increase effective damping gap
Length then will increase the overall volume and size of MR damper, occupy more installation spaces and use space, manufacture at
This also increase accordingly.In addition, the adjustable extent of damping force is limited using the moving sealed structure being made of piston and cylinder body, because
Dynamic sealing, generation when damper being caused to work are carried out using sealing ring between piston head and cylinder body and between piston rod and end cap
Very big seal friction, this frictional force are a part of uncontrollable damping force.
Summary of the invention
In order to solve the problems, such as background technique and meet requirement of the MR damper in engineer application, this hair
It is bright to propose a kind of MR damper being sealed using elastic metallic bellows.The bobbin winder bracket of the MR damper and resistance
Gap between Buddhist nun's disk constitutes the liquid stream damp channel that existing annulus stream has radial flow again, and it is effective can to form two sections of ring axials
Damping clearance and two sections of disc radial direction effective damping gaps.Under the premise of not increasing outer dimension, the valve pocket of damper, around
Coil holder, magnet exciting coil and dampened disk constitute the magnetorheological valve type structure with mixed flow dynamic formula fluid course.In excitation wire
4 sections of concatenated effective damping gaps are formed in circle under the function of current, liquid stream relaxation length is increased effectively, improves the magnetic line of force
Utilization rate.It is different from traditional MR damper being made of dynamic sealing between piston and cylinder body, a left side for damper of the present invention
Right end cap is fixedly connected by 4 guiding axis, and is driven by guiding axis along the pilot hole side-to-side movement on valve pocket.Between end cap
Static seal is carried out using elastic metallic bellows, the dynamic sealing friction of damper is eliminated, effectively increases the adjustable model of damping force
It encloses.The MR damper damping force adjustable extent is wide, and high-frequency vibration can be effectively isolated by carrying out elastic connection using bellows, special
Not Shi Yongyu transportation industry vibration insulating system.
The technical solution adopted by the present invention to solve the technical problems includes: left lifting lug (1), ring flange I (2), left ripple
Manage (3), ring flange II (4), bobbin winder bracket (5), magnet exciting coil (6), ring flange III (7), right bellows (8), ring flange IV (9),
Right lifting lug (10), right end cap (11), guiding axis (12), right braking roll (13), right connection end cap (14), right dampened disk (15), valve
Cover (16), left dampened disk (17), left connection end cap (18), left braking roll (19) and left end cap (20)；Left lifting lug (1) right end is tapped with
External screw thread, left end cap (20) is intermediate to be machined with internal thread through hole, and the two passes through screw threads for fastening and connects；Left end cap (20) is machined with 4
A circular through hole being arranged circumferentially, the internal thread hole of corresponding 4 guiding axis (12) left sides；Left end cap (20) passes through screw
Guiding axis (12) left side uniformly placed with 4 circumferential directions is fixedly connected；Ring flange I (2) and left end cap (20) are solid by screw
Fixed connection；Left end cap (20) right side is close in left bellows (3) left side, and is compressed by ring flange I (2)；Left bellows (3)
It is sealed by a seal ring between left end cap (20)；Left connection end cap (18) and valve pocket (16) inner surface transition fit, and
It is sealed by a seal ring；Left connection end cap (18), ring flange II (4) and valve pocket (16) are fixedly connected by screw；Zuo Bo
Left connection end cap (18) left side is close in line pipe (3) right side, and is compressed by ring flange II (4)；Left bellows (3) and left company
It connects and is sealed by a seal ring between end cap (18)；Left braking roll (19) right end is externally threaded, in left connection end cap (18)
Between be machined with internal thread through hole, the two passes through screw threads for fastening and connects；It is close to left dampened disk (17) in left connection end cap (18) right side
And bobbin winder bracket (5) left side, axially position is served to left dampened disk (17) and bobbin winder bracket (5) left side；Left dampened disk (17) diameter
4 circular protrusions being arranged circumferentially, the circumferential inner surface of 4 circular protrusions and bobbin winder bracket (5) are machined with to circumferential surface
Transition fit；Bobbin winder bracket (5) and valve pocket (16) internal surface gaps cooperate, and are sealed by a seal ring；In the middle part of bobbin winder bracket (5)
It is processed into stepped hole, forming face (501), face (502) and deflector hole (503) inside stepped hole；The face (501) of bobbin winder bracket (5) with
The cylinder small boss fitting that 4 of left dampened disk (17) right side processing are arranged circumferentially, bobbin winder bracket (5) pass through face (501)
To progress axially position on the right side of left dampened disk (17)；The face (502) of bobbin winder bracket (5) and the 4 of the processing of right dampened disk (15) left side
A cylinder small boss fitting being arranged circumferentially, bobbin winder bracket (5) are axial to carrying out on the left of right dampened disk (15) by face (502)
Positioning；Magnet exciting coil (6) is wound in the winding slot (504) of bobbin winder bracket (5), fairlead (1601) of the lead from valve pocket (16)
Middle extraction；Right dampened disk (15) radial peripheral surface is machined with 4 circular protrusions being arranged circumferentially, 4 circular protrusions with
The circumferential inner surface transition fit of bobbin winder bracket (5)；It is close to right dampened disk (15) and bobbin winder bracket (5) in right connection end cap (14) left side
Axially position is played to right dampened disk (15) and bobbin winder bracket (5) right side in right side；Right braking roll (13) left end is tapped with outer spiral shell
Line, right connection end cap (14) is intermediate to be machined with internal thread through hole, and the two is threadably secured connection；Right connection end cap (14) and valve
(16) inner surface transition fit is covered, and is sealed by a seal ring；Right connection end cap (14), ring flange III (7) and valve pocket
(16) it is fixedly connected by screw；Right connection end cap (14) right side is close in right bellows (8) left side, and passes through ring flange III
(7) it compresses；It is sealed by a seal ring between right bellows (8) and right connection end cap (14)；Ring flange IV (9) and right end cap
(11) it is fastenedly connected by screw；Right end cap (11) left side is close in right bellows (8) right side, and passes through ring flange IV (9)
It compresses；It is sealed by a seal ring between right bellows (8) and right end cap (11)；Right lifting lug (10) left end is externally threaded,
Internal thread through hole is machined among right end cap (11), the two is connected by screw threads for fastening；It is equal that right end cap (11) is machined with 4 circumferential directions
The circular through hole of even arrangement respectively corresponds the internal thread hole of 4 guiding axis (12) right sides；Right end cap (11) passes through screw and 4
Guiding axis (12) right side that root is circumferentially uniformly placed is fixedly connected；4 guiding axis (12) are equal with circumferential direction on valve pocket (16) respectively
4 pilot hole clearance fits of even arrangement；4 guiding axis (12) can be along the pilot hole axial direction side-to-side movement on valve pocket (16), can
Drive left end cap (20) and right end cap (11) axial direction side-to-side movement；Left end cap (20), left bellows (3), left braking roll
(19) and between left connection end cap (18) closed containing cavity A is surrounded；Right connection end cap (14), right braking roll (13), right bellows (8)
And closed containing cavity B is surrounded between right end cap (11)；Magnetorheological fluid is filled respectively in closed containing cavity A and closed containing cavity B；Left bellows
(3) it is made with right bellows (8) of the identical elastic metallic bellows of specifications parameter；When damper stretches or compresses, Zuo Bo
Line pipe (3) changes with right bellows (8) volume, and closed containing cavity A and the volume of closed containing cavity B is caused to change therewith；
Left braking roll (19) and right braking roll (13) equal length and the length for being less than left bellows (3) and right bellows (8), can limit
Left bellows (3) and right bellows (8) excessive tensile or compression；Circular ring shape axis between left dampened disk (17) and bobbin winder bracket (5)
The Ith section of effective damping gap is formed to gap；Disc radial clearance between left dampened disk (17) and bobbin winder bracket (5) forms the
II section of effective damping gap；Disc radial clearance between right dampened disk (15) and bobbin winder bracket (5) forms the IIIth section of effectively resistance
Buddhist nun gap；Ring axial gap between right dampened disk (15) and bobbin winder bracket (5) forms the IVth section of effective damping gap；I
Section, the IIth section, the IIIth section and the IVth section of effective damping gap are sequentially connected, and constitute mixed flow dynamic formula liquid flowing channel structure；Coiling
Frame (5), right dampened disk (15), valve pocket (16) and left dampened disk (17) are made of mild steel permeability magnetic material respectively；Remaining parts are equal
It is made of un-conducted magnetic material.
Compared with the background technology, the present invention, it has the beneficial effect that
(1) present invention uses elastic metallic bellow-type structure, and the volume of elastic metallic bellows can be with its internal liquid stream pressure
Power changes and changes, and the rigid connection of damper is become elastic connection by this structure, so that damper is in the small stroke fortune of high speed
There is good isolation property in dynamic situation, greatly reduce the transmitting of high-frequency vibration, improve usage comfort, be particularly suitable for
For the industries vibration insulating system such as railway, traffic.
(2) compared with traditional MR damper being made of dynamic sealing between piston and cylinder body, the present invention is using gold
Belong to bellows and no friction element is made, and sealed by static sealing, between piston-rodless and end cap and piston head and cylinder body
The high friction generated by dynamic sealing, so that the ratio that damping force related with magnetic field accounts for total output damping force is bigger, thus
So that MR damper has broader damping force adjustable extent.
(3) MR damper damping clearance of the present invention is designed to the mixed flow dynamic formula simultaneously with annulus stream and radial flow
4 sections of effective damping gaps are uniformly distributed in magnet exciting coil middle position, magnetorheological fluid in each section of damping clearance by fluid course
Flow direction it is all vertical with magnetic direction, take full advantage of the trend of the magnetic line of force in radial and axial direction, increase damp
There is no the magnetic induction intensity reduced in damping clearance while gap length, so that the adjustable model of the damping force of MR damper
Enclose wider, performance is more preferable.
(4) part used in MR damper of the present invention is except bobbin winder bracket, right dampened disk, valve pocket and left dampened disk are by mild steel
Outside permeability magnetic material is made, remaining parts are made of un-conducted magnetic material.This design can effectively ensure that the magnetic line of force is concentrated as far as possible
It is distributed in 4 sections of effective damping gaps, gives full play to effect of the vertical magnetic field to magnetorheological fluid, improve the effect of MR damper
Rate, and the energy consumption of MR damper is effectively reduced.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is left end cap cross-sectional view of the present invention.
Fig. 3 is left end cap right view of the present invention.
Fig. 4 is the left connection end cap cross-sectional view of the present invention.
Fig. 5 is the left connection end cap left view of the present invention.
Fig. 6 is valve pocket cross-sectional view of the present invention.
Fig. 7 is valve pocket left view of the present invention.
Fig. 8 is the left dampened disk cross-sectional view of the present invention.
Fig. 9 is the left dampened disk right view of the present invention.
Figure 10 is bobbin winder bracket cross-sectional view of the present invention.
Figure 11 is that magnetorheological fluid flows through fluid course schematic diagram when the present invention compresses to the right.
Figure 12 is distribution diagram of magnetic line of force when the present invention is powered on.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 show schematic structural view of the invention.Mainly include left lifting lug 1, ring flange I 2, left bellows 3, ring flange II 4, around
Coil holder 5, magnet exciting coil 6, ring flange III 7, right bellows 8, ring flange IV 9, right lifting lug 10, right end cap 11, guiding axis 12, the right side are stopped
Moving axis 13, right connection end cap 14, right dampened disk 15, valve pocket 16, left dampened disk 17, left connection end cap 18, left braking roll 19 and a left side
End cap 20.
Fig. 2 show left end cap cross-sectional view of the present invention, and Fig. 3 show left end cap right view of the present invention.20 center of left end cap
It is machined with an internal thread through hole, can be threadedly coupled with left 1 right end of lifting lug；20 right side outer ring of left end cap is machined with 4 circumferential directions
The circular through hole being evenly arranged respectively corresponds the threaded hole of 4 12 left sides of guiding axis, can be played and guiding axis 12 by screw
It is fixedly connected with effect；20 right side inner ring of left end cap is machined with 6 internal thread through hole being arranged circumferentially, companion flange disk I 2
On 6 circular through holes, can play the role of being fastenedly connected with ring flange I 2 by screw；20 right side of left end cap is machined with annular
Groove, left 3 left end of bellows are installed in annular groove and are compressed by ring flange I 2.
Fig. 4 show the left connection end cap cross-sectional view of the present invention, and Fig. 5 show the left connection end cap left view of the present invention.Zuo Lian
It connects 18 center of end cap and is machined with an internal thread through hole, can be threadedly coupled with left 19 right end of braking roll；Left 18 left end of connection end cap
Face is machined with 6 circular through holes being arranged circumferentially, and respectively corresponds 16 left side of 6 circular through holes and valve pocket on ring flange II 4
The threaded hole of end face 6, left connection end cap 18, ring flange II 4 are fixedly connected with valve pocket 16 by screw；Left 18 left end of connection end cap
Face is machined with annular groove, and left 3 right end of bellows is installed in annular groove, and is compressed by ring flange II 4；Left connection end cap
18 left sides are machined with 4 kidney slots being arranged circumferentially, and play guide functions.
Fig. 6 show valve pocket cross-sectional view of the present invention, and Fig. 7 show valve pocket left view of the present invention.The processing of 16 left side of valve pocket
There are 6 internal thread holes being arranged circumferentially, 6 circular through holes in corresponding left connection end cap 18；The processing of 16 right side of valve pocket
There are 6 internal thread holes being arranged circumferentially, 6 circular through holes in corresponding right connection end cap 14；One is machined on valve pocket 16
The lead of a fairlead 1601, magnet exciting coil 6 can draw damper from fairlead 1601；It is machined in 16 middle part mounting base of valve pocket
4 pilot holes being arranged circumferentially, guiding axis 12 and pilot hole clearance fit, and can be along pilot hole side-to-side movement.
Fig. 8 show the left dampened disk cross-sectional view of the present invention, and Fig. 9 show the left dampened disk right view of the present invention.Left dampened disk
17 radial peripheral surfaces are machined with 4 circular protrusions being arranged circumferentially, and 4 circular protrusions can be with 5 inner surface mistake of bobbin winder bracket
Cross cooperation；Left 17 right side of dampened disk is machined with 4 cylinder small boss being arranged circumferentially.
Figure 10 show bobbin winder bracket cross-sectional view of the present invention.Stepped hole, forming face inside stepped hole are processed into the middle part of bobbin winder bracket 5
501, face 502 and deflector hole 503.Play axially position on the right side of the left dampened disk 17 in 501 pairs of face, the right dampened disk 15 in 502 pairs of face is left
Axially position is played in side, and deflector hole 503 plays guide functions.Winding slot 504 is machined on bobbin winder bracket 5, magnet exciting coil 6 is wound in
In the winding slot 504 of bobbin winder bracket 5, the fairlead 1601 that lead passes through valve pocket 16 draws damper.
Figure 11 show magnetorheological fluid when the present invention compresses to the right and flows through fluid course schematic diagram.When left end cap 20, guiding
When axis 12 and right end cap 11 move right, arrow direction is magnetorheological fluid from damper cavity A to the flowing side of cavity B
To.
Figure 12 show distribution diagram of magnetic line of force when the present invention is powered on.Annulus between left dampened disk 17 and bobbin winder bracket 5
Shape axial gap forms the Ith section of effective damping gap；Disc radial clearance between left dampened disk 17 and bobbin winder bracket 5 forms the
II section of effective damping gap；Disc radial clearance between right dampened disk 15 and bobbin winder bracket 5 is formed between the IIIth section of effective damping
Gap；Ring axial gap between right dampened disk 15 and bobbin winder bracket 5 forms the IVth section of effective damping gap；I section, the IIth
Section, the IIIth section and the IVth section of effective damping gap are sequentially connected, and constitute mixed flow dynamic formula liquid flowing channel structure.When to magnet exciting coil
When being passed through a certain size electric current in 6, since the magnetic line of force that electromagnetic induction generates has through valve pocket 16,5 left side of bobbin winder bracket, the Ith section
Damping clearance, left dampened disk 17, the IIth section of 5 middle part of effective damping gap arrival bobbin winder bracket are imitated, using the IIIth section of effective damping
Gap, the IVth section of effective damping gap, returns to valve pocket 16 on the right side of bobbin winder bracket 5 at right dampened disk 15, forms closed circuit.
Working principle of the invention is as follows:
As shown in Figure 1, Figure 11 and Figure 12, left end cap 20 is fixedly connected with right end cap 11 by 4 guiding axis 12, and by guiding axis
12 drive along the pilot hole side-to-side movement on valve pocket 16；Left bellows 3 and right bellows 8 is used to carry out between end cap quiet close
Envelope, eliminates the dynamic sealing friction of damper, effectively increases damping force adjustable extent.Left bellows 3 and right bellows 8 are by advising
The identical elastic metallic bellows of lattice parameter is made, and volume can change with internal flow stream pressure and be changed, by damper
Elastic connection is changed into rigid connection, so that damper has good isolation property, pole in the small stroke motion of high speed
Reduce the transmitting of high-frequency vibration greatly.Valve pocket 16, bobbin winder bracket 5, magnet exciting coil 6, left dampened disk 17 and right dampened disk 15 constitute one
A magnetorheological valve type structure with mixed flow fluid course.Under the function of current, I section, the IIth section, the IIIth section and the IVth
Section effective damping inner space will form magnetic field, and magnetic direction is vertical with the flow direction of magnetorheological fluid, at this time 4 sections of damping clearances
In magnetorheological fluid under external magnetic field viscosity increase, semisolid or solid-state are changed by Newtonian fluid state rapidly, cut
It cuts yield strength to increase sharply and change with applied field strengths, with regard to necessary when magnetorheological fluid flows through this 4 sections of damping clearances
Overcome chain resistance itself, the resistance for flowing through valve so as to cause magnetorheological fluid increases, and can slow down or liquid stream is prevented to circulate, and generate
Level Four pressure drop to generate pressure difference between damper cavity A and cavity B.By adjusting size of current in magnet exciting coil 6, controllably
The shear stress of magnetic field strength and then control magnetorheological fluid at damping clearance processed, to realize to damper output damping force
It adjusts.
Claims (3)
1. a kind of MR damper being sealed using elastic metallic bellows, characterized by comprising: left lifting lug (1),
Ring flange I (2), left bellows (3), ring flange II (4), bobbin winder bracket (5), magnet exciting coil (6), ring flange III (7), right bellows
(8), ring flange IV (9), right lifting lug (10), right end cap (11), guiding axis (12), right braking roll (13), right connection end cap (14),
Right dampened disk (15), valve pocket (16), left dampened disk (17), left connection end cap (18), left braking roll (19) and left end cap (20)；It is left
Lifting lug (1) right end is externally threaded, and internal thread through hole is machined among left end cap (20), and the two is connected by screw threads for fastening；It is left
End cap (20) is machined with 4 circular through holes being arranged circumferentially, the internal thread hole of corresponding 4 guiding axis (12) left sides；It is left
End cap (20) is fixedly connected by guiding axis (12) left side that screw is uniformly placed with 4 circumferential directions；Ring flange I (2) and left end
Lid (20) is fixedly connected by screw；Left end cap (20) right side is close in left bellows (3) left side, and passes through ring flange I (2)
It compresses；It is sealed by a seal ring between left bellows (3) and left end cap (20)；In left connection end cap (18) and valve pocket (16)
Surface transition cooperation, and be sealed by a seal ring；Left connection end cap (18), ring flange II (4) and valve pocket (16) pass through spiral shell
Nail is fixedly connected；Left connection end cap (18) left side is close in left bellows (3) right side, and is compressed by ring flange II (4)；It is left
It is sealed by a seal ring between bellows (3) and left connection end cap (18)；Left braking roll (19) right end is externally threaded, left
Internal thread through hole is machined among connection end cap (18), the two is connected by screw threads for fastening；Left connection end cap (18) right side is tight
Left dampened disk (17) and bobbin winder bracket (5) left side are pasted, axially position is served to left dampened disk (17) and bobbin winder bracket (5) left side；
Left dampened disk (17) radial peripheral surface is machined with 4 circular protrusions being arranged circumferentially, 4 circular protrusions and bobbin winder bracket
(5) circumferential inner surface transition fit；Bobbin winder bracket (5) and valve pocket (16) internal surface gaps cooperate, and are carried out by sealing ring close
Envelope；Stepped hole is processed into the middle part of bobbin winder bracket (5), forming face (501), face (502) and deflector hole (503) inside stepped hole；Coiling
The face (501) of frame (5) is bonded with 4 cylinder small boss being arranged circumferentially that left dampened disk (17) right side processes, coiling
Frame (5) is by face (501) to progress axially position on the right side of left dampened disk (17)；The face (502) of bobbin winder bracket (5) and right dampened disk
(15) the cylinder small boss fitting that 4 of left side processing are arranged circumferentially, bobbin winder bracket (5) is by face (502) to right damping
Axially position is carried out on the left of disk (15)；Magnet exciting coil (6) is wound in the winding slot (504) of bobbin winder bracket (5), and lead is from valve pocket
(16) it is drawn in fairlead (1601)；Right dampened disk (15) radial peripheral surface is machined with 4 circles being arranged circumferentially
Protrusion, the circumferential inner surface transition fit of 4 circular protrusions and bobbin winder bracket (5)；It is close to right resistance in right connection end cap (14) left side
Axially position is played to right dampened disk (15) and bobbin winder bracket (5) right side in Buddhist nun's disk (15) and bobbin winder bracket (5) right side；Right stop
Axis (13) left end is externally threaded, and is machined with internal thread through hole among right connection end cap (14), the two is threadably secured connection；
Right connection end cap (14) and valve pocket (16) inner surface transition fit, and be sealed by a seal ring；Right connection end cap (14), method
Blue disk III (7) is fixedly connected with valve pocket (16) by screw；It is close to right connection end cap (14) right end in right bellows (8) left side
Face, and compressed by ring flange III (7)；It is sealed by a seal ring between right bellows (8) and right connection end cap (14)；Method
Blue disk IV (9) is fastenedly connected with right end cap (11) by screw；Right end cap (11) left side is close in right bellows (8) right side,
And it is compressed by ring flange IV (9)；It is sealed by a seal ring between right bellows (8) and right end cap (11)；Right lifting lug
(10) left end is externally threaded, and internal thread through hole is machined among right end cap (11), and the two is connected by screw threads for fastening；Right end cap
(11) 4 circular through holes being arranged circumferentially are machined with, the internal thread hole of 4 guiding axis (12) right sides is respectively corresponded；It is right
End cap (11) is fixedly connected by guiding axis (12) right side that screw is uniformly placed with 4 circumferential directions；4 guiding axis (12) are respectively
With 4 pilot hole clearance fits being arranged circumferentially on valve pocket (16)；4 guiding axis (12) can be along the guiding on valve pocket (16)
Hole axle moves leftwards and rightwards, and can drive left end cap (20) and right end cap (11) axial direction side-to-side movement；Left end cap (20), left ripple
Closed containing cavity A is surrounded between pipe (3), left braking roll (19) and left connection end cap (18)；Right connection end cap (14), right braking roll
(13), closed containing cavity B is surrounded between right bellows (8) and right end cap (11)；It is filled respectively in closed containing cavity A and closed containing cavity B
Magnetorheological fluid；Left bellows (3) and right bellows (8) are made of the identical elastic metallic bellows of specifications parameter；Work as damper
When stretching or compressing, left bellows (3) changes with right bellows (8) volume, leads to closed containing cavity A's and closed containing cavity B
Volume changes therewith；Left braking roll (19) is with right braking roll (13) equal length and less than left bellows (3) and right ripple
The length for managing (8), can limit left bellows (3) and right bellows (8) excessive tensile or compression.
2. a kind of MR damper being sealed using elastic metallic bellows according to claim 1, feature
Be: the ring axial gap between left dampened disk (17) and bobbin winder bracket (5) forms the Ith section of effective damping gap；Left damping
Disc radial clearance between disk (17) and bobbin winder bracket (5) forms the IIth section of effective damping gap；Right dampened disk (15) with around
Disc radial clearance between coil holder (5) forms the IIIth section of effective damping gap；Between right dampened disk (15) and bobbin winder bracket (5)
Ring axial gap form the IVth section of effective damping gap；I section, the IIth section, the IIIth section between the IVth section of effective damping
Gap is sequentially connected, and constitutes mixed flow dynamic formula liquid flowing channel structure.
3. a kind of MR damper being sealed using elastic metallic bellows according to claim 1, feature
Be: bobbin winder bracket (5), right dampened disk (15), valve pocket (16) and left dampened disk (17) are made of mild steel permeability magnetic material respectively；Its
Remaining part is made of un-conducted magnetic material.
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| CN201811335700.0A CN109236936B (en) | 2018-11-11 | 2018-11-11 | Magnetorheological damper sealed by elastic metal corrugated pipe |
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