CN108869615A - A kind of unicoil MR damper with snakelike fluid course - Google Patents
A kind of unicoil MR damper with snakelike fluid course Download PDFInfo
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- CN108869615A CN108869615A CN201811099892.XA CN201811099892A CN108869615A CN 108869615 A CN108869615 A CN 108869615A CN 201811099892 A CN201811099892 A CN 201811099892A CN 108869615 A CN108869615 A CN 108869615A
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- end cap
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- piston head
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- damper
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- 239000012530 fluid Substances 0.000 title claims abstract description 125
- 238000013016 damping Methods 0.000 claims abstract description 69
- 238000004804 winding Methods 0.000 claims abstract description 43
- 230000002708 enhancing effect Effects 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 10
- 239000000696 magnetic material Substances 0.000 claims description 7
- 238000007667 floating Methods 0.000 claims description 5
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 3
- 239000007787 solid Substances 0.000 claims 1
- 230000001965 increasing effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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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
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
Abstract
The invention discloses a kind of unicoil MR dampers with snakelike fluid course, are mainly made of piston rod, attenuator end cap, damper cylinder body, piston head end cap, coil winding frame, magnet exciting coil and magnetic conduction disk etc..The snakelike fluid course that fluid course A, B, C, D, E, F, G, H and I composition magnetorheological fluid flow through；Under the premise of not changing outer dimension, magnetorheological effective damping length can be increased.When magnet exciting coil is passed through electric current, effective radial disk type damping clearance I, II, III and IV is formed at fluid course B, D, F and H；As electric current increases, the magnetorheological fluid viscosity for flowing through four sections of radial disk type damping clearances increases, yield stress enhancing, to form pressure difference between the cavity of piston head left end cap left end and the cavity of piston head right end cap right end.MR damper of the present invention is compact-sized, it is wider to can produce larger output damping force, damping force adjustable extent, especially suitable for vibration insulating systems such as automobile, panzers.
Description
Technical field
The present invention relates to a kind of MR damper more particularly to a kind of unicoil with snakelike fluid course are magnetorheological
Damper.
Background technique
MR damper has Millisecond response speed, big control range as a kind of novel semi- active control element
The features such as with big output damping force, it is made to be widely used in the vibration insulating system of building and bridge.
Traditional MR damper is by being passed through the control of size of current to magnet exciting coil, to realize output damping force size
Real-time control.MR damper winding slot is processed into annular groove, and cross-sectional area is rectangle；The length in effective damping gap
Degree only concentrates on winding slot left and right ends, does not make full use of the length of piston head.The viscous damping force of damper and effectively resistance
The length in Buddhist nun gap is directly proportional；When viscosity resistance is very big, increase effective resistance generally by the volume for increasing piston head
The length in Buddhist nun gap, but this method often makes damper overall volume become larger, and manufacturing cost is high.In addition, magnetorheological damping
For the fluid course of device outside magnet exciting coil, this structure arrangement can waste a part of magnetic field.
Summary of the invention
In order to solve the problems, such as that background technique, the present invention propose a kind of unicoil magnetic with snakelike fluid course
Rheological damper.The fluid course A of the damper, fluid course B, fluid course C, fluid course D, fluid course E, liquid stream are logical
The snakelike fluid course that road F, fluid course G, fluid course H and fluid course I composition magnetorheological fluid flow through；Do not changing damping
Under the premise of device overall dimension, this snakelike fluid course can effectively increase magnetorheological effective damping length；Work as excitation wire
For circle when being passed through electric current, the magnetic line of force of generation passes perpendicularly through fluid course B, D, F and H, formed effective radial disk type damping clearance I,
Effective radial disk type damping clearance II, effective radial disk type damping clearance III and effective radial disk type damping clearance IV；With electricity
The increase of stream, the magnetorheological fluid viscosity for flowing through four sections of radial disk type damping clearances increase, yield stress enhancing, thus in piston head
Pressure difference is formed between the cavity of left end cap left end and the cavity of piston head right end cap right end；Apply the big of electric current by changing
It is small, can real-time control MR damper output damping force size.This structure design is sufficiently used walking for the magnetic line of force
To increasing effective damping length and the section of shear, ensure that magnetorheological damping under the premise of not reducing damping clearance width
Device can export sufficiently large damping force, while will not result in blockage because damping clearance is too narrow.The MR damper structure
It is compact, to can produce larger output damping force, damping force adjustable extent wider, subtract particularly suitable for aircraft, automobile, panzer etc.
Vibrating system.
The technical solution adopted by the present invention to solve the technical problems includes：Left hanging ring (1), piston rod (2), damper are left
End cap (3), damper cylinder body (4), piston head left end cap (5), coil winding frame (6), magnet exciting coil (7), left magnetic conduction disk
(8), right magnetic conduction disk (9), piston head right end cap (10), floating piston (11), damper right end cap (12) and right hanging ring (13)；
Left hanging ring (1) right end is machined with internal thread hole, and piston rod (2) left end is machined with external screw thread, and the two is connected by screw threads for fastening；Resistance
Circular through hole, piston rod (2) circumferential outer surface and damper left end cap (3) circular through hole are machined among Buddhist nun's device left end cap (3)
Internal surface gaps cooperation, and be sealed by a seal ring；Piston rod (2) right end outer circumference surface is machined with circumferential equally distributed
3 circular through holes connect with the blind round hole of piston rod (2) right side processing, constitute the fluid course A that magnetorheological fluid flows through
(14)；Damper left end cap (3) is fixedly connected with damper cylinder body (4) by screw, and is sealed by a seal ring；Piston
The intermediate position of head left end cap (5) is machined with internal thread through hole, and piston rod (2) right end circumferential outer surface is machined with external screw thread, the two
It is threadably secured connection；Piston head left end cap (5) is fixedly connected with coil winding frame (6) by screw；Coil winding frame (6)
Circumferential outer surface is machined with circular ring type groove, and magnet exciting coil (7) uniform winding is in the circular ring type groove of coil winding frame (6)；
Coil winding frame (6) and piston head left end cap (5) are machined with wire lead slot, and piston rod (2) and left hanging ring (1) are machined with fairlead,
The lead of magnet exciting coil (7) passes sequentially through above-mentioned wire lead slot and fairlead is drawn；It is processed into I-shaped in coil winding frame (6) section
Type, and centre is machined with circular through hole；Piston head left end cap (5) right side is circumferentially uniformly machined with 4 blind holes, left magnetic conduction disk
(8) left side is circumferentially uniformly machined with 4 cylindrical protrusions, the circumferential outer surface and piston head left end cap of 4 cylindrical protrusions
(5) 4 blind holes interference fit；The intermediate groove left side of coil winding frame (6) is circumferentially uniformly machined with 4 blind holes, and a left side is led
Magnetic disk (8) right side is circumferentially uniformly machined with 4 cylindrical protrusions, the circumferential outer surface and coil of 4 cylindrical protrusions around
4 blind holes of coil holder (6) intermediate groove left side are interference fitted；The intermediate groove right side of coil winding frame (6) is circumferentially uniform
It is machined with 4 blind holes, right magnetic conduction disk (9) left side is circumferentially uniformly machined with 4 cylindrical protrusions, 4 cylindrical protrusions
4 blind holes of circumferential outer surface and coil winding frame (6) intermediate groove right side are interference fitted；Piston head right end cap (10) left end
Face is circumferentially uniformly machined with 4 blind holes, and right magnetic conduction disk (9) right side is circumferentially uniformly machined with 4 cylindrical protrusions, 4 circles
The circumferential outer surface of column-shaped projection and 4 blind holes of piston head right end cap (10) are interference fitted；Piston head right end cap (10) and line
Circle bobbin winder bracket (6) is fixedly connected by screw；Table in piston head right end cap (10) circumferential outer surface and damper cylinder body (4) circumference
Face clearance fit, and be sealed by a seal ring；Circular through hole is machined among piston head right end cap (10)；Floating piston
(11) circumferential outer surface and damper cylinder body (4) circumferential inner surface clearance fit, and be sealed by a seal ring；Damper is right
End cap (12) is fixedly connected with damper cylinder body (4) by screw, and is sealed by a seal ring；Damper right end cap (12)
Right end is machined with external screw thread, and right hanging ring (13) left end is machined with internal thread hole, and the two is connected by screw threads for fastening；Piston head left end
The radial disk gap covered between (5) and left magnetic conduction disk (8) constitutes fluid course B (15)；Coil winding frame (6) and left magnetic conduction
Axial ring gap between disk (8) circumferential outer surface constitutes fluid course C (16)；Coil winding frame (6) and left magnetic conduction circle
Radial disk gap between disk (8) right side constitutes fluid course D (17)；Coil winding frame (6) central through hole constitutes liquid stream
Channel E (18)；Radial disk gap between coil winding frame (6) and right magnetic conduction disk (9) left side constitutes fluid course F
(19)；Axial ring gap between coil winding frame (6) and right magnetic conduction disk (9) circumferential outer surface constitutes fluid course G
(20)；Radial disk gap between piston head right end cap (10) and right magnetic conduction disk (9) right side constitutes fluid course H
(21)；The intermediate circular through hole of piston head right end cap (10) constitutes fluid course I (22)；Fluid course A (14), fluid course B
(15), fluid course C (16), fluid course D (17), fluid course E (18), fluid course F (19), fluid course G (20), liquid
The snakelike fluid course that circulation road H (21) and fluid course I (22) composition magnetorheological fluid flows through；It is whole outer not changing damper
Under the premise of shape size, this snakelike fluid course can effectively increase magnetorheological effective damping length；When magnet exciting coil (7) is passed through
When electric current, the magnetic line of force of generation passes perpendicularly through fluid course B (15), D (17), F (19) and H (21), forms effective radial disk type
Damping clearance I (23), effective radial disk type damping clearance II (24), effective radial disk type damping clearance III (25) and effective radial direction
Disc type damping clearance IV (26)；With the increase of electric current, the magnetorheological fluid viscosity for flowing through four sections of radial disk type damping clearances increases,
Yield stress enhancing, thus between the cavity of piston head left end cap (5) left end and the cavity of piston head right end cap (10) right end
Form pressure difference；By change apply electric current size, can real-time control MR damper output damping force size；Damping
Device cylinder body (4), piston head left end cap (5), coil winding frame (6), left magnetic conduction disk (8), right magnetic conduction disk (9) and piston head are right
End cap (10) is made of mild steel permeability magnetic material respectively, and remaining parts are made of un-conducted magnetic material.
Compared with the background technology, the present invention, it has an advantageous effect in that：
（1）Fluid course A of the present invention, fluid course B, fluid course C, fluid course D, fluid course E, fluid course F, liquid stream
The snakelike fluid course that channel G, fluid course H and fluid course I composition magnetorheological fluid flow through；It is whole outer not changing damper
Under the premise of shape size, this snakelike fluid course can effectively increase magnetorheological effective damping length；When magnet exciting coil is passed through electricity
When stream, the magnetic line of force of generation passes perpendicularly through fluid course B, D, F and H, forms effective radial disk type damping clearance I, effectively radial direction
Disc type damping clearance II, effective radial disk type damping clearance III and effective radial disk type damping clearance IV；With the increase of electric current,
The magnetorheological fluid viscosity for flowing through four sections of effective radial disk type damping clearances increases, yield stress enhancing, thus in piston head left end
Pressure difference is formed between the cavity of lid left end and the cavity of piston head right end cap right end；The size for applying electric current by changing, can
The size of real-time control MR damper output damping force.This structure design is sufficiently used the trend of the magnetic line of force,
Under the premise of not reducing damping clearance width, effective damping length and the section of shear are increased, ensure that MR damper energy
Sufficiently large damping force is enough exported, while will not be resulted in blockage because damping clearance is too narrow.
（2）Under the premise of not increasing MR damper external dimensions, the present invention is due to using snakelike fluid course；
In lesser exciting current with regard to exportable biggish controllable damping force, while damping force dynamic regulation range is wider, is particularly suitable for
In vibration insulating systems such as aircraft, automobile, panzers.
（3）Damper cylinder body, piston head left end cap, coil winding frame, left magnetic conduction disk, right magnetic conduction disk and work of the present invention
Chock plug right end cap is made of mild steel permeability magnetic material respectively, and remaining parts are made of un-conducted magnetic material.This design can be effective
Guarantee that magnetic line of force integrated distribution as far as possible gives full play to vertical magnetic field to magnetorheological fluid in four sections of radial disk type damping clearances
Effect, improves the efficiency of MR damper, 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 fluid course distribution schematic diagram of the present invention.
Magnetorheological fluid flows to schematic diagram when Fig. 3 is inventive piston bar tension.
Fig. 4 is magnetic line of force distribution of the present invention and effective damping gap distribution schematic diagram.
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.It mainly include left hanging ring 1, piston rod 2, damper left end cap 3, damper cylinder
Body 4, piston head left end cap 5, coil winding frame 6, magnet exciting coil 7, left magnetic conduction disk 8, right magnetic conduction disk 9, piston head right end cap
10, floating piston 11, damper right end cap 12 and right hanging ring 13.
Fig. 2 show invention fluid course distribution schematic diagram.2 right end excircle outer surface of piston rod is machined with circumferential uniform
3 circular through holes of distribution connect with the blind round hole of 2 right side of piston rod processing, constitute the liquid stream that magnetorheological fluid flows through
Channel A14；Radial disk gap between piston head left end cap 5 and left magnetic conduction disk 8 constitutes fluid course B15；Coil-winding
Axial ring gap between frame 6 and left 8 circumferential outer surface of magnetic conduction disk constitutes fluid course C16；Coil winding frame 6 is led with a left side
Radial disk gap between 8 right side of magnetic disk constitutes fluid course D17；It is logical that 6 central through hole of coil winding frame constitutes liquid stream
Road E18；Radial disk gap between coil winding frame 6 and right 9 left side of magnetic conduction disk constitutes fluid course F19；Coil around
Axial ring gap between coil holder 6 and right 9 circumferential outer surface of magnetic conduction disk constitutes fluid course G20；Piston head right end cap 10
Radial disk gap between right 9 right side of magnetic conduction disk constitutes fluid course H21；It is round logical among piston head right end cap 10
Hole constitutes fluid course I22；Fluid course A14, fluid course B15, fluid course C16, fluid course D17, fluid course
The snakelike liquid that E18, fluid course F19, fluid course G20, fluid course H21 and fluid course I22 composition magnetorheological fluid flow through
Circulation road.
Magnetorheological fluid flows to schematic diagram when Fig. 3 show inventive piston bar tension.When piston rod is in tensional state,
The cavity of 5 left end of piston head left end cap is pressurized, and magnetorheological fluid passes sequentially through fluid course A, fluid course B, fluid course at this time
C, fluid course D, fluid course E, fluid course F, fluid course G, fluid course H and fluid course I reach piston head right end
The cavity of 10 right end of lid.
Fig. 4 is magnetic line of force distribution of the present invention and effective damping gap distribution schematic diagram.Damper cylinder body 4 of the present invention, piston
Head left end cap 5, coil winding frame 6, left magnetic conduction disk 8, right magnetic conduction disk 9 and piston head right end cap 10 are respectively by mild steel magnetic conduction
Material is made, and remaining parts are made of un-conducted magnetic material.When magnet exciting coil 7 is passed through a certain size electric current, magnet exciting coil 7
The magnetic line of force of generation passes through piston head left end cap 5, damper cylinder body 4, piston head right end cap 10, fluid course H, right magnetic conduction disk
9, fluid course F, coil winding frame 6, fluid course D, left magnetic conduction disk 8 and fluid course B, eventually pass back to piston head left end cap
5 form closed circuit.The magnetic line of force passes perpendicularly through fluid course B, D, F and H, formed effective radial disk type damping clearance I 23, effectively
Radial disk type damping clearance II 24, effective radial disk type damping clearance III 25 and effective radial disk type damping clearance IV 26；With
The increase of electric current, the magnetorheological fluid viscosity for flowing through four sections of radial disk type damping clearances increase, yield stress enhancing, thus in piston
Pressure difference is formed between the cavity of head left end cap left end and the cavity of piston head right end cap right end；Apply the big of electric current by changing
It is small, can real-time control MR damper output damping force size.
Working principle of the invention is as follows：
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, when magnet exciting coil 7 is passed through electric current, the magnetic line of force that magnet exciting coil 7 is formed vertically is worn
Cross fluid course B, D, F and H, formed effective radial disk type damping clearance I 23, effective radial disk type damping clearance II 24, effectively
Radial disk type damping clearance III 25 and effectively radial disk type damping clearance IV 26.Flow through the magnetic current of four sections of radial disk type damping clearances
Becoming liquid, its viscosity will increase due to magnetic fields, yield stress enhancing.Magnetorheological fluid flows through this four sections effective radial disk type dampings
Gap just must overcome the intermolecular power of this catenation.The size for being passed through electric current by adjusting magnet exciting coil 7, it is reachable
To anticipated output damping force.
Claims (2)
1. a kind of unicoil MR damper with snakelike fluid course, it is characterised in that including：Left hanging ring (1), piston
Bar (2), damper left end cap (3), damper cylinder body (4), piston head left end cap (5), coil winding frame (6), magnet exciting coil
(7), left magnetic conduction disk (8), right magnetic conduction disk (9), piston head right end cap (10), floating piston (11), damper right end cap
(12) and right hanging ring (13)；Left hanging ring (1) right end is machined with internal thread hole, and piston rod (2) left end is machined with external screw thread, and the two is logical
Cross screw threads for fastening connection；Circular through hole, piston rod (2) circumferential outer surface and damper are machined among damper left end cap (3)
The cooperation of left end cap (3) circular through hole internal surface gaps, and be sealed by a seal ring；Piston rod (2) right end outer circumference surface adds
Work has circumferential equally distributed 3 circular through holes, connects with the blind round hole of piston rod (2) right side processing, constitutes magnetic current
Become the fluid course A (14) of liquid stream warp；Damper left end cap (3) is fixedly connected with damper cylinder body (4) by screw, and is passed through
Sealing ring is sealed；The intermediate position of piston head left end cap (5) is machined with internal thread through hole, piston rod (2) right end circumferential outer surface
Face is machined with external screw thread, and the two is threadably secured connection；Piston head left end cap (5) and coil winding frame (6) are solid by screw
Fixed connection；Coil winding frame (6) circumferential outer surface is machined with circular ring type groove, and magnet exciting coil (7) uniform winding is in coil-winding
In the circular ring type groove of frame (6)；Coil winding frame (6) and piston head left end cap (5) are machined with wire lead slot, piston rod (2) and a left side
Hanging ring (1) is machined with fairlead, and the lead of magnet exciting coil (7) passes sequentially through above-mentioned wire lead slot and fairlead is drawn；Coil-winding
Frame (6) section is processed into I-shaped, and centre is machined with circular through hole；The circumferential uniformly processing in piston head left end cap (5) right side
There are 4 blind holes, left magnetic conduction disk (8) left side is circumferentially uniformly machined with 4 cylindrical protrusions, the circumference of 4 cylindrical protrusions
4 blind holes of outer surface and piston head left end cap (5) are interference fitted；The intermediate groove left side of coil winding frame (6) is circumferentially equal
Even to be machined with 4 blind holes, left magnetic conduction disk (8) right side is circumferentially uniformly machined with 4 cylindrical protrusions, 4 cylindrical protrusions
Circumferential outer surface and coil winding frame (6) intermediate groove left side 4 blind holes be interference fitted；In coil winding frame (6)
Between groove right side be circumferentially uniformly machined with 4 blind holes, right magnetic conduction disk (9) left side is circumferentially uniformly machined with 4 cylinders
Protrusion, the circumferential outer surface of 4 cylindrical protrusions and 4 blind holes of coil winding frame (6) intermediate groove right side are interference fitted；
Piston head right end cap (10) left side is circumferentially uniformly machined with 4 blind holes, and right magnetic conduction disk (9) right side is circumferentially uniformly machined with
4 cylindrical protrusions, the circumferential outer surface of 4 cylindrical protrusions and 4 blind holes of piston head right end cap (10) are interference fitted；It is living
Chock plug right end cap (10) is fixedly connected with coil winding frame (6) by screw；Piston head right end cap (10) circumferential outer surface and resistance
Buddhist nun's device cylinder body (4) circumferential inner surface clearance fit, and be sealed by a seal ring；It is machined among piston head right end cap (10)
Circular through hole；Floating piston (11) circumferential outer surface and damper cylinder body (4) circumferential inner surface clearance fit, and pass through sealing ring
It is sealed；Damper right end cap (12) is fixedly connected with damper cylinder body (4) by screw, and is carried out by sealing ring close
Envelope；Damper right end cap (12) right end is machined with external screw thread, and right hanging ring (13) left end is machined with internal thread hole, and the two passes through screw thread
It is fastenedly connected；Radial disk gap between piston head left end cap (5) and left magnetic conduction disk (8) constitutes fluid course B (15)；Line
The axial ring gap enclosed between bobbin winder bracket (6) and left magnetic conduction disk (8) circumferential outer surface constitutes fluid course C (16)；Coil
Radial disk gap between bobbin winder bracket (6) and left magnetic conduction disk (8) right side constitutes fluid course D (17)；Coil winding frame
(6) central through hole constitutes fluid course E (18)；Radial disk between coil winding frame (6) and right magnetic conduction disk (9) left side
Gap constitutes fluid course F (19)；Axial circular interannular between coil winding frame (6) and right magnetic conduction disk (9) circumferential outer surface
Gap constitutes fluid course G (20)；Radial disk gap structure between piston head right end cap (10) and right magnetic conduction disk (9) right side
At fluid course H (21)；The intermediate circular through hole of piston head right end cap (10) constitutes fluid course I (22)；Fluid course A (14),
Fluid course B (15), fluid course C (16), fluid course D (17), fluid course E (18), fluid course F (19), liquid stream are logical
The snakelike fluid course that road G (20), fluid course H (21) and fluid course I (22) composition magnetorheological fluid flow through；Do not changing resistance
Under the premise of Buddhist nun's device overall dimension, this snakelike fluid course can effectively increase magnetorheological effective damping length；Work as excitation
When coil (7) is passed through electric current, the magnetic line of force of generation passes perpendicularly through fluid course B (15), D (17), F (19) and H (21), is formed with
Imitate radial disk type damping clearance I (23), effective radial disk type damping clearance II (24), effective radial disk type damping clearance III (25)
And effective radial disk type damping clearance IV (26)；With the increase of electric current, the magnetorheological of four sections of radial disk type damping clearances is flowed through
Fluid viscosity increases, yield stress enhancing, thus cavity and piston head right end cap (10) right end in piston head left end cap (5) left end
Cavity between form pressure difference；Apply the size of electric current by changing, it can real-time control MR damper output damping force
Size.
2. a kind of unicoil MR damper with snakelike fluid course according to claim 1, it is characterised in that：
Damper cylinder body (4), piston head left end cap (5), coil winding frame (6), left magnetic conduction disk (8), right magnetic conduction disk (9) and piston
Head right end cap (10) is made of mild steel permeability magnetic material respectively, and remaining parts are made of un-conducted magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099892.XA CN108869615A (en) | 2018-09-20 | 2018-09-20 | A kind of unicoil MR damper with snakelike fluid course |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099892.XA CN108869615A (en) | 2018-09-20 | 2018-09-20 | A kind of unicoil MR damper with snakelike fluid course |
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| CN108869615A true CN108869615A (en) | 2018-11-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899617A (en) * | 2019-03-21 | 2019-06-18 | 西安联飞智能装备研究院有限责任公司 | A kind of hydraulic damper and hydraulic damping device assembly |
| CN114962525A (en) * | 2022-05-31 | 2022-08-30 | 重庆大学 | Magneto-rheological bidirectional valve-controlled hydraulic damper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6318519B1 (en) * | 1999-09-13 | 2001-11-20 | Delphi Technologies, Inc. | Magnetorheological fluid damper tunable for smooth transitions |
| CN204003729U (en) * | 2014-08-05 | 2014-12-10 | 华东交通大学 | A kind of two-stage Radial Flow formula magnetic rheological valve that wriggles |
| CN104963986A (en) * | 2015-07-14 | 2015-10-07 | 华东交通大学 | Magneto-rheological damper with mixed flow type fluid flowing channel |
-
2018
- 2018-09-20 CN CN201811099892.XA patent/CN108869615A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6318519B1 (en) * | 1999-09-13 | 2001-11-20 | Delphi Technologies, Inc. | Magnetorheological fluid damper tunable for smooth transitions |
| CN204003729U (en) * | 2014-08-05 | 2014-12-10 | 华东交通大学 | A kind of two-stage Radial Flow formula magnetic rheological valve that wriggles |
| CN104963986A (en) * | 2015-07-14 | 2015-10-07 | 华东交通大学 | Magneto-rheological damper with mixed flow type fluid flowing channel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899617A (en) * | 2019-03-21 | 2019-06-18 | 西安联飞智能装备研究院有限责任公司 | A kind of hydraulic damper and hydraulic damping device assembly |
| CN114962525A (en) * | 2022-05-31 | 2022-08-30 | 重庆大学 | Magneto-rheological bidirectional valve-controlled hydraulic damper |
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Application publication date: 20181123 |