CN209041423U - A kind of built-in mixed flow dynamic formula MR damper every disk - Google Patents
A kind of built-in mixed flow dynamic formula MR damper every disk Download PDFInfo
- Publication number
- CN209041423U CN209041423U CN201821553002.3U CN201821553002U CN209041423U CN 209041423 U CN209041423 U CN 209041423U CN 201821553002 U CN201821553002 U CN 201821553002U CN 209041423 U CN209041423 U CN 209041423U
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- end cap
- disk
- damper
- piston head
- magnetic conduction
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- 238000000034 method Methods 0.000 claims description 8
- 238000007667 floating Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000013016 damping Methods 0.000 abstract description 49
- 239000007788 liquid Substances 0.000 abstract description 13
- 239000012530 fluid Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses the mixed flow dynamic formula MR dampers built in one kind every disk, mainly by piston rod, magnetic conduction disk, magnetic guiding loop, piston head end cap, form every disk and magnetism-isolating loop etc..Liquid flow path direction vertical magnetic field direction between magnetic conduction disk and piston head end cap forms two-section radial damping clearance；Every disk, magnetic guiding loop both ends are arranged magnetism-isolating loop and form two sections of circular ring type damping clearances so that the liquid flow path direction at annulus damping clearance is vertical with magnetic direction for setting between two magnetic conduction disks.Under the premise of not increasing damper outer dimension, radial flow MR damper is set to become the mixed flow dynamic formula MR damper simultaneously with annulus stream and radial flow, extend effective damping length, the utility model is built-in every disk, improve magnetic force line use ratio, effective magnetic field area is increased, so that damper output damping force is big, and adjustable extent is wide.This practical damper is suitable for vibrating frequent, the biggish occasion of load.
Description
Technical field
The utility model relates to a kind of MR dampers, more particularly to a kind of built-in mixed flow dynamic formula magnetic current every disk
Variable damping device.
Background technique
MR damper is a kind of using magnetic rheological fluid intelligent material as the semi- active control damping device of driving medium, because
It has many advantages, such as that structure is simple, low in energy consumption, output damping force adjustable extent is wide and response is rapid, to be widely used in automobile
The fields such as suspension system and the vibration damping antidetonation of rail vehicles, building and bridge.
MR damper is by inputting different size of electric current to magnet exciting coil, to control magnetic field at damping clearance
Size reaches the yield strength for changing magnetorheological fluid, realizes that damper exports the stepless adjustable purpose of damping force.It is bigger to obtain
Output damping force, traditional method is by increasing the volume of piston head to making the length of damping clearance increase.This side
Method not only makes the volume of MR damper become huge, while increasing its manufacture difficulty and assembly difficulty.In addition, magnetorheological
Damper piston head once damage, need to repair disassembly it is extremely difficult, seriously increase maintenance and maintenance cost.
Summary of the invention
In order to solve the problems, such as background technique, the utility model provides one kind the built-in mixed flow dynamic formula every disk
MR damper.Two-section radial fluid course, liquid are formed between the piston head end cap and magnetic conduction disk of the MR damper
The liquid flow path direction of magnetorheological fluid forms two-section radial disk damping gap perpendicular to magnetic direction at circulation road；In addition, two are led
Magnetism-isolating loop is arranged every disk, magnetic guiding loop both ends in setting between magnetic disk, so that magnetic line of force direction and magnetic at axial fluid course
Rheology liquid liquid flow path direction is vertical, forms two sections of axial annulus damping clearances.It is this under the premise of not increasing damper outer dimension
Structure design makes single radial flow MR damper become the mixing simultaneously with two kinds of damping clearances of annulus stream and radial flow
Flow-type MR damper becomes four sections of effective damping gaps by two sections of effective damping gaps, extends magnetorheological fluid flowing
Effective damping length, while the utilization rate of the magnetic line of force is improved, so that the pressure drop between two chamber of damper increases.This is magnetorheological
The magnetorheological fluid of damper flows through four effective damping channels and generates damping action, and piston head both ends have biggish pressure difference；
Simultaneously by adjusting loading current size, the pressure difference between four effective damping channels can control, so that damper exports
Damping force adjustable extent increases.The mixed flow dynamic formula twin coil MR damper stability is high, and assembly is simple, system later period dimension
It protects at low cost.
It includes: left lifting lug (1), damper left end cap that the utility model, which solves technical solution used by its technical problem,
(2), cylinder barrel (3), left magnetism-isolating loop (4), magnet exciting coil (5), magnetic guiding loop (6), right magnetism-isolating loop (7), floating piston (8), spring
(9), damper right end cap (10), right lifting lug (11), piston head right end cap (12), right magnetic conduction disk (13), every disk (14), left
Magnetic conduction disk (15), piston head left end cap (16), piston rod (17)；Internal thread hole, piston are machined among left lifting lug (1) right end
Bar (17) left end external process has external screw thread, and the two is threadably secured connection；Circle is machined among damper left end cap (2)
Through-hole, piston rod (17) circumferential outer surface and damper left end cap (2) circular through hole internal surface gaps cooperate, and pass through sealing ring
It is sealed；Damper left end cap (2) and cylinder barrel (3) internal surface gaps cooperate, and are sealed by a seal ring；Damper is left
End cap (2) is fixedly connected with cylinder barrel (3) by screw；Piston head left end cap (16) right side 4 circles of circumferential uniformly processing are convex
Left magnetic conduction disk (15) left side is close in platform, round boss right side；The circumferential uniformly processing 4 in right magnetic conduction disk (13) left side
Right magnetic conduction disk (13) right side is close in round boss, round boss left side；It is close to every magnetic left magnetic conduction disk (15) right side
Disk (14) left side；It is close to every disk (14) right side right magnetic conduction disk (13) left side；Piston head left end cap (16), left magnetic conduction
Disk (15) is machined with central through hole, center every disk (14), right magnetic conduction disk (13) and piston head right end cap (12)
Through-hole inner surface and piston rod (17) circumferential outer surface clearance fit；Piston rod (17) right part is machined with external screw thread；Piston head
Left end cap (16), left magnetic conduction disk (15) pass through piston every disk (14), right magnetic conduction disk (13) and piston head right end cap (12)
Bar (17) the right end shaft shoulder carries out axially position, and is fixed by nut check；Piston head left end cap (16) right side is machined with ring
Connected in star, left magnetism-isolating loop (4) are mounted in annular groove；Piston head left end cap (16) and left magnetism-isolating loop (4) are interference fitted；Piston
Head right end cap (12) left side is machined with annular groove, and right magnetism-isolating loop (7) is mounted in annular groove；Piston head right end cap (12)
It is interference fitted with right magnetism-isolating loop (7)；Magnetic guiding loop (6) inner circumferential surface respectively with left magnetic conduction disk (15) excircle boss appearance
Face, right magnetic conduction disk (13) excircle boss outer surface and every disk (14) outer circumference surface clearance fit；Left magnetism-isolating loop (4) is led
The circumferential outer surface of magnet ring (6) and right magnetism-isolating loop (7) and piston head left end cap (16) right side and piston head right end cap (12) are left
The region surrounded between end face forms toroidal cavity, and magnet exciting coil (5) is wrapped in toroidal cavity；Piston head left end cap
(16) circumferential outer surface and cylinder barrel (3) circumferential inner surface clearance fit, and be sealed by a seal ring；Piston head right end cap
(12) circumferential outer surface and cylinder barrel (3) circumferential inner surface clearance fit, and be sealed by a seal ring；Floating piston (8) circle
All outer surfaces and cylinder barrel (3) circumferential inner surface clearance fit, and sealed by sealing ring；It lives against floating spring (9) left side
(8) right side is filled in, spring (9) right side abuts the groove of damper right end cap (10) left side；Damper right end cap (10) with
The cooperation of cylinder barrel (3) internal surface gaps, and be sealed by a seal ring；Damper right end cap (10) and cylinder barrel (3) pass through screw
It is fixedly connected；Internal thread hole is machined among right lifting lug (11) left end, damper right end cap (10) right end external process has outer spiral shell
Line, the two are threadably secured connection.
The utility model compared with the background art, has the beneficial effect that
(1) it is logical that two-section radial liquid stream is formed between the piston head end cap and magnetic conduction disk of the utility model MR damper
Road, the liquid flow path direction of magnetorheological fluid forms two-section radial disk damping gap perpendicular to magnetic direction at fluid course；Other two
Magnetism-isolating loop is arranged every disk, magnetic guiding loop both ends in setting between a magnetic conduction disk, so that the magnetic line of force direction at axial fluid course
It is vertical with magnetorheological fluid liquid flow path direction, form two sections of axial annulus damping clearances.Under the premise of not increasing damper outer dimension,
This structure design makes single radial flow MR damper become have two kinds of damping clearances of annulus stream and radial flow simultaneously
Mixed flow dynamic formula MR damper becomes four sections of effective damping gaps by two sections of effective damping gaps, extends magnetorheological fluid
The effective damping length of flowing, while the utilization rate of the magnetic line of force is improved, so that the pressure drop between two chamber of damper increases.It is this
Structure design not only extends effective damping channel, while also increasing effective magnetic field area.Magnet exciting coil is applied certain big
When small electric current, the magnetorheological fluid for flowing through damp channel generates controllable damping force under magnetic fields；By adjusting loading current
Output damping force can be effectively controlled in size.
(2) the utility model is compact-sized, has the advantages that output damping force is big and adjustable extent is wide.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Fig. 2 is the distribution of the utility model excitation line of force and effective damping gap schematic diagram.
Fig. 3 is the left view of the utility model piston head left end cap.
Fig. 4 is the left view of the utility model magnetic conduction disk.
Fig. 5 is left view of the utility model every disk.
Specific embodiment
Fig. 1 is the utility model structure diagram, including left lifting lug 1, damper left end cap 2, cylinder barrel 3, left magnetism-isolating loop 4,
Magnet exciting coil 5, magnetic guiding loop 6, right magnetism-isolating loop 7, floating piston 8, spring 9, damper right end cap 10, right lifting lug 11, piston head are right
End cap 12, right magnetic conduction disk 13, every disk 14, left magnetic conduction disk 15, piston head left end cap 16, piston rod 17.
Fig. 2 is the distribution of the utility model excitation line of force and effective damping gap schematic diagram.It is produced when applying electric current to magnet exciting coil 5
Magnetisation field, magnetic induction line originate in piston head left end cap 16, successively pass perpendicularly through cylinder barrel 3, piston head right end cap 12, radial disk resistance
Buddhist nun gap II, right magnetic conduction disk 13, axial annulus damping clearance IV, magnetic guiding loop 6, axial annulus damping clearance III, left magnetic conduction circle
Disk 15, radial disk damping gap I, finally return to piston head left end cap 16, form closed circuit.Under magnetic fields, piston
Radial flow of liquid channel between head left end cap 16 and left magnetic conduction disk 15 constitutes radial disk damping gap I, piston head right end cap
Radial flow of liquid channel between 12 and right magnetic conduction disk 13 constitutes radial disk damping gap II, left magnetic conduction disk 15 and magnetic guiding loop
Axial fluid course between 6 constitutes axial annulus damping clearance III, the axial liquid stream between right magnetic conduction disk 13 and magnetic guiding loop 6
Channel constitutes axial annulus damping clearance IV.
Fig. 3 is the left view of the utility model piston head left end cap.Four waists are processed in the end face of piston head left end cap 16
Shape through-hole enters the fluid course of damping clearance as magnetorheological fluid.
Fig. 4 is the left view of the utility model magnetic conduction disk.Respectively in the outer of left magnetic conduction disk 15 and right magnetic conduction disk 13
Disc is machined with 4 boss, with 6 circumferential inner surface clearance fit of magnetic guiding loop, carries out radial positioning to magnetic guiding loop 6.
Fig. 5 is left view of the utility model every disk.It is recessed that 4 kidney-shapeds are inwardly processed in the outer circumference surface every disk 14
Slot, the axial fluid course as magnetorheological fluid.
Utility model works principle is as follows:
External vibration makes piston head and cylinder barrel generates relative motion, and the magnetic field that magnet exciting coil generates passes perpendicularly through radial disk
Damping clearance I, II and axial annulus damping clearance III, IV.Magnetic current and liquid flow overdamp channel, just must overcome magnetorheological fluid
The intermolecular power of catenation hinders the movement of piston head so that damping force increases.The utility model is by increasing effective magnetic
The mode of field extends effective damping channel, to increase the mangneto damping force of MR damper.Excitation is passed through by adjusting
The yield stress of magnetorheological fluid can be changed in the size of coil current, exports damping force needed for reaching.
Claims (1)
1. a kind of built-in mixed flow dynamic formula MR damper every disk, characterized by comprising: left lifting lug (1), damper
Left end cap (2), cylinder barrel (3), left magnetism-isolating loop (4), magnet exciting coil (5), magnetic guiding loop (6), right magnetism-isolating loop (7), floating piston (8),
Spring (9), damper right end cap (10), right lifting lug (11), piston head right end cap (12), right magnetic conduction disk (13), every disk
(14), left magnetic conduction disk (15), piston head left end cap (16), piston rod (17)；Internal screw thread is machined among left lifting lug (1) right end
Hole, piston rod (17) left end external process have external screw thread, and the two is threadably secured connection；Add among damper left end cap (2)
Work has circular through hole, and piston rod (17) circumferential outer surface and damper left end cap (2) circular through hole internal surface gaps cooperate, and lead to
Sealing ring is crossed to be sealed；Damper left end cap (2) and cylinder barrel (3) internal surface gaps cooperate, and are sealed by a seal ring；
Damper left end cap (2) is fixedly connected with cylinder barrel (3) by screw；The circumferential uniformly processing 4 in piston head left end cap (16) right side
Left magnetic conduction disk (15) left side is close in a round boss, round boss right side；Right magnetic conduction disk (13) left side is circumferentially equal
Right magnetic conduction disk (13) right side is close in 4 round boss of even processing, round boss left side；Left magnetic conduction disk (15) right side
It is close to every disk (14) left side；It is close to every disk (14) right side right magnetic conduction disk (13) left side；Piston head left end cap
(16), left magnetic conduction disk (15), every disk (14), right magnetic conduction disk (13) and piston head right end cap (12) to be machined with center logical
Hole, center through-hole inner surface and piston rod (17) circumferential outer surface clearance fit；Piston rod (17) right part is machined with outer spiral shell
Line；Piston head left end cap (16), left magnetic conduction disk (15), every disk (14), right magnetic conduction disk (13) and piston head right end cap
(12) axially position is carried out by piston rod (17) the right end shaft shoulder, and is fixed by nut check；Piston head left end cap (16) is right
End face is machined with annular groove, and left magnetism-isolating loop (4) is mounted in annular groove；Piston head left end cap (16) and left magnetism-isolating loop (4)
Interference fit；Piston head right end cap (12) left side is machined with annular groove, and right magnetism-isolating loop (7) is mounted in annular groove；It is living
Chock plug right end cap (12) and right magnetism-isolating loop (7) are interference fitted；Magnetic guiding loop (6) inner circumferential surface respectively with left magnetic conduction disk (15) outside
Circumference boss outer surface, right magnetic conduction disk (13) excircle boss outer surface and every disk (14) outer circumference surface clearance fit；It is left
Magnetism-isolating loop (4), the circumferential outer surface of magnetic guiding loop (6) and right magnetism-isolating loop (7) and piston head left end cap (16) right side and piston head
The region surrounded between right end cap (12) left side forms toroidal cavity, and magnet exciting coil (5) is wrapped in toroidal cavity；It is living
Chock plug left end cap (16) circumferential outer surface and cylinder barrel (3) circumferential inner surface clearance fit, and be sealed by a seal ring；Piston
Head right end cap (12) circumferential outer surface and cylinder barrel (3) circumferential inner surface clearance fit, and be sealed by a seal ring；It floats and lives
(8) circumferential outer surface and cylinder barrel (3) circumferential inner surface clearance fit are filled in, and is sealed by sealing ring；Spring (9) left side abuts
Floating piston (8) right side, spring (9) right side abut the groove of damper right end cap (10) left side；Damper right end cap
(10) cooperate with cylinder barrel (3) internal surface gaps, and be sealed by a seal ring；Damper right end cap (10) and cylinder barrel (3) are logical
Screw is crossed to be fixedly connected；Internal thread hole, damper right end cap (10) right end external process are machined among right lifting lug (11) left end
There is external screw thread, the two is threadably secured connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821553002.3U CN209041423U (en) | 2018-09-22 | 2018-09-22 | A kind of built-in mixed flow dynamic formula MR damper every disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821553002.3U CN209041423U (en) | 2018-09-22 | 2018-09-22 | A kind of built-in mixed flow dynamic formula MR damper every disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209041423U true CN209041423U (en) | 2019-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821553002.3U Expired - Fee Related CN209041423U (en) | 2018-09-22 | 2018-09-22 | A kind of built-in mixed flow dynamic formula MR damper every disk |
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|---|---|
| CN (1) | CN209041423U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628341A (en) * | 2020-12-14 | 2021-04-09 | 深圳先进技术研究院 | Magneto-rheological damper and vehicle |
-
2018
- 2018-09-22 CN CN201821553002.3U patent/CN209041423U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628341A (en) * | 2020-12-14 | 2021-04-09 | 深圳先进技术研究院 | Magneto-rheological damper and vehicle |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190628 |
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| CF01 | Termination of patent right due to non-payment of annual fee |