CN208107047U - Mixed flow dynamic formula twin coil MR damper - Google Patents
Mixed flow dynamic formula twin coil MR damper Download PDFInfo
- Publication number
- CN208107047U CN208107047U CN201820514542.4U CN201820514542U CN208107047U CN 208107047 U CN208107047 U CN 208107047U CN 201820514542 U CN201820514542 U CN 201820514542U CN 208107047 U CN208107047 U CN 208107047U
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- piston head
- magnetic yoke
- damper
- gap
- magnetic
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Abstract
The utility model discloses a kind of mixed flow dynamic formula twin coil MR dampers, are mainly made of piston rod, the left magnetic yoke of piston head, magnetic conduction disk, the right magnetic yoke of piston head, magnet exciting coil, cylinder barrel and attenuator end cap etc..The piston head of conventional MR damper is designed to that the left magnetic yoke of piston head, magnetic conduction disk and the right magnetic yoke three parts of piston head are composed.The gap surrounded between the left magnetic yoke of piston head, magnetic conduction disk, the right magnetic yoke of piston head and cylinder barrel inner surface constitutes the channel that flows through of magnetorheological fluid, including axial annular fluid flow gap I, radial disk damping gap I, axial annular fluid flow gap III, radial disk damping gap II and axial annular fluid flow gap II.This structure design extends effective damping channel, increases magnetic field area, output damping force can be effectively controlled under magnetic fields；Damping force adjustable extent can be made to increase using twin coil energisation mode；It is highly suitable for vibrating frequently, the biggish occasion of load.
Description
Technical field
The utility model relates to a kind of MR damper more particularly to a kind of mixed flow dynamic formula twin coil magnetorheological dampings
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 output damping force is stepless adjustable.To obtain bigger output
Damping force, conventional method are by increasing the volume of piston head to make the length of damping clearance increase.This method not only makes
The volume of MR damper becomes huge, while increasing its manufacture difficulty and assembly difficulty.In addition, MR damper is living
Chock plug once damage, need to repair disassembly it is extremely difficult, seriously increase maintenance and maintenance cost.
Based on this, in order to realize in the case where not increasing piston head volume, bigger damping force is exported, it is necessary to design one
Kind mixed flow dynamic formula twin coil MR damper.
Summary of the invention
In order to solve the problems, such as background technique, the utility model proposes a kind of mixed flow dynamic formula twin coil is magnetorheological
The piston head of conventional MR damper is designed to the left magnetic yoke of piston head, magnetic conduction disk and the right magnetic yoke of piston head by damper
Three parts are composed.The left magnetic yoke outer surface of piston head and cylinder barrel inner surface form axial annular fluid flow gap I, and piston head is left
Gap between magnetic yoke step right side and magnetic conduction disk left end forms radial disk damping gap I；The four of magnetic conduction disk processing
A equally distributed kidney slot forms axial annular fluid flow gap III；Piston head right magnetic yoke step left side and magnetic conduction disk are right
Gap between end forms radial disk damping gap II；The right magnetic yoke outer surface of piston head and cylinder barrel inner surface form axial annulus
Shape damping clearance II.Axial annular fluid flow gap I, radial disk damping gap I, axial annular fluid flow gap III, radial direction
Disk damping gap II and axial annular fluid flow gap II collectively constitute the fluid course that magnetorheological fluid flows through.This structure is set
Meter not only extends effective damping channel, while also increasing effective magnetic field area.When being powered to magnet exciting coil, it is logical to flow through damping
The magnetorheological fluid in road generates controllable damping force under magnetic fields；By adjusting loading current size, output resistance can be effectively controlled
Buddhist nun's power.The utility model MR damper system uses twin coil, can be formed simultaneously four effective damping channels；So that
Damper exports damping force adjustable extent and increases.The utility model MR damper stability is high, assembly is simple, system maintenance
It is at low cost.
The utility model solves technical solution used by its technical problem：Left lifting lug (1), damper left end cap
(2), cylinder barrel (3), magnetic conduction disk (4), floating piston (5), damper right end cap (6), piston rod (7), the left magnetic yoke of piston head
(8), magnet exciting coil I (9), magnet exciting coil II (10), the right magnetic yoke of piston head (11), spring (12) and right lifting lug (13)；Left lifting lug
(1) internal thread hole is machined among right end, piston rod (7) left end external process has external screw thread, and the two is threadably secured connection；
It is machined with circular through hole among damper left end cap (2), between piston rod (7) and damper left end cap (2) circular through hole inner surface
Gap cooperation, and be sealed by a seal ring；Damper left end cap (2) and cylinder barrel (3) internal surface gaps cooperate, and pass through sealing
Circle is sealed；Damper left end cap (2) is fixedly connected with cylinder barrel (3) by screw；The left magnetic yoke of piston head (8) outer surface and cylinder
Cylinder (3) inner surface forms axial annular fluid flow gap I (14), the right magnetic yoke of piston head (11) outer surface and cylinder barrel (3) inner surface
Form axial annular fluid flow gap II (18)；There are four equally distributed kidney slot (19), four waists for magnetic conduction disk (4) processing
Shape hole (19) forms axial annular fluid flow gap III (16)；The left magnetic yoke of piston head (8) processes stepped；The left magnetic yoke of piston head
(8) right side abuts magnetic conduction disk (4) left side；Between the left magnetic yoke of piston head (8) step right side and magnetic conduction disk (4) left end
Gap form radial disk damping gap I (15)；The right magnetic yoke of piston head (11) processes stepped；The right magnetic yoke of piston head (11)
Left side abuts magnetic conduction disk (4) right side；Between the right magnetic yoke of piston head (11) step left side and magnetic conduction disk (4) right end
Gap forms radial disk damping gap II (17)；Axial annular fluid flow gap I (14), radial disk damping gap I (15),
Axial annular fluid flow gap III (16), radial disk damping gap II (17) and axial annular fluid flow gap II (18) are common
The fluid course that composition magnetorheological fluid flows through；The left magnetic yoke of piston head (8), magnetic conduction disk (4) and the right magnetic yoke of piston head (11) pass through
Bolt axial restraint；The left magnetic yoke of piston head (8) circumferential outer surface is machined with toroidal cavity, and magnet exciting coil I (9) is wrapped in annulus
In connected in star；The right magnetic yoke of piston head (11) circumferential outer surface is machined with toroidal cavity, and magnet exciting coil II (10) is wrapped in annulus
In connected in star；Through-hole is threaded among the left magnetic yoke of piston head (8), magnetic conduction disk (4) and the right magnetic yoke of piston head (11)；It is living
Stopper rod (7) right end is machined with external screw thread；Piston rod (7) is right with the left magnetic yoke of piston head (8), magnetic conduction disk (4) and piston head respectively
Magnetic yoke (11) passes through screw thread axial restraint；Damper right end cap (6) and cylinder barrel (3) internal surface gaps cooperate, and pass through sealing ring
It is sealed；Damper right end cap (6) is fixedly connected with cylinder barrel (3) by screw；Floating piston (5) external peripheral surface and cylinder barrel
(3) circumferential inner surface clearance fit, and be sealed by a seal ring；Position is machined with annulus among floating piston (5) right end
Shape counterbore slot, damper right end cap (6) left end centre position are machined with circular ring shape counterbore slot；Spring (12) left end and floating piston
(5) right end counterbore slot end face contacts, and spring (12) right end is contacted with damper right end cap (6) left end counterbore slot end face；Right lifting lug
(13) internal thread hole is machined among left end, damper right end cap (6) right end external process has external screw thread, and the two is solid by screw thread
Fixed connection.
The utility model compared with the background art, has an advantageous effect in that：
(1) the utility model by the piston head of conventional MR damper be designed to the left magnetic yoke of piston head, magnetic conduction disk with
And the right magnetic yoke three parts of piston head are composed.The left magnetic yoke outer surface of piston head and cylinder barrel inner surface form axial circular annular damper
Gap I, the gap between piston head left magnetic yoke step right side and magnetic conduction disk left end form radial disk damping gap I；It leads
Four equally distributed kidney slots of magnetic disk processing form axial annular fluid flow gap III；Piston head right magnetic yoke step left end
Gap between face and magnetic conduction disk right end forms radial disk damping gap II；Table in the right magnetic yoke outer surface of piston head and cylinder barrel
Face forms axial annular fluid flow gap II.Axial annular fluid flow gap I, radial disk damping gap I, axial circular ring shape resistance
It is logical that Buddhist nun gap III, radial disk damping gap II and axial annular fluid flow gap II collectively constitute the liquid stream that magnetorheological fluid flows through
Road.This structure design not only extends effective damping channel, while also increasing effective magnetic field area.It is powered to magnet exciting coil
When, the magnetorheological fluid for flowing through damp channel generates controllable damping force under magnetic fields；By adjusting loading current size, can have
Effect control output damping force.
(2) the utility model MR damper system uses twin coil, can be formed simultaneously four effective damping channels；
So that damper output damping force adjustable extent increases.
(3) the utility model MR damper stability is high, assembly is simple, system maintenance is at low cost.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Fig. 2 is the utility model damping clearance and liquid flowing channel structure schematic diagram.
Fig. 3 is magnetic line of force distribution and effective damping channel design schematic diagram when the utility model leads to reverse current.
Fig. 4 is magnetic line of force distribution and effective damping channel design schematic diagram when the utility model leads to same direction current.
Fig. 5 is the utility model magnetic conduction disk top view.
Specific embodiment
Fig. 1 is the utility model structure diagram, including left lifting lug (1), damper left end cap (2), cylinder barrel (3), magnetic conduction
Disk (4), damper right end cap (6), piston rod (7), the left magnetic yoke of piston head (8), magnet exciting coil I (9), is encouraged at floating piston (5)
The right magnetic yoke of magnetic coil II (10), piston head (11), spring (12) and right lifting lug (13)；
Fig. 2 is the utility model damping clearance and liquid flowing channel structure schematic diagram.The left magnetic yoke of piston head (8) outer surface and cylinder
Cylinder (3) inner surface forms axial annular fluid flow gap I (14), the left magnetic yoke of piston head (8) step right side and magnetic conduction disk (4)
Gap between left end forms radial disk damping gap I (15)；Four equally distributed kidney slots of magnetic conduction disk (4) processing
Form axial annular fluid flow gap III (16)；Between the right magnetic yoke of piston head (11) step left side and magnetic conduction disk (4) right end
Gap form radial disk damping gap II (17)；The right magnetic yoke of piston head (11) outer surface and cylinder barrel (3) inner surface form axis
To annular fluid flow gap II (18)；Axial annular fluid flow gap I (14), radial disk damping gap I (15), axial annulus
Shape damping clearance III (16), radial disk damping gap II (17) and axial annular fluid flow gap II (18) collectively constitute magnetic current
Become the fluid course of liquid stream warp.
Fig. 3 is magnetic line of force distribution and effective damping channel design schematic diagram when the utility model leads to reverse current.When to being encouraged
When magnetic coil I (9) is powered, since the magnetic line of force that electromagnetic induction generates successively passes through the left magnetic yoke of piston head (8), axial circular ring shape resistance
Buddhist nun gap I (14) reaches cylinder barrel (3), then left via magnetic conduction disk (4) and I (15) return piston head of radial disk damping gap
Magnetic yoke (8) forms closed circuit；When being powered to magnet exciting coil II (10), since the magnetic line of force that electromagnetic induction generates successively passes through
Cross the right magnetic yoke of piston head (11), axial annular fluid flow gap II (18) reaches cylinder barrel (3), then via magnetic conduction disk (4) and
The radial right left magnetic yoke (11) of disk damping gap II (17) return piston head forms closed circuit.
Fig. 4 is magnetic line of force distribution and effective damping channel design schematic diagram when the utility model leads to same direction current.When to being encouraged
When magnetic coil I (9) is powered, since the magnetic line of force that electromagnetic induction generates successively passes through the left magnetic yoke of piston head (8), axial circular ring shape resistance
Buddhist nun gap I (14) reaches cylinder barrel (3), then left via magnetic conduction disk (4) and I (15) return piston head of radial disk damping gap
Magnetic yoke (8) forms closed circuit；When being powered to magnet exciting coil II (10), since the magnetic line of force that electromagnetic induction generates successively passes through
The right magnetic yoke of piston head (11), radial disk damping gap II (17) arrival magnetic conduction disk (4) are crossed, then via cylinder barrel (3) and axis
To the right magnetic yoke of annular fluid flow gap II (18) return piston head (11), closed circuit is formed.
Fig. 5 is the utility model damping magnetic conduction disk top view.Four symmetrical kidney slots are processed on magnetic conduction disk
(19), as damp channel.
Utility model works principle is as follows：
External vibration makes piston head and cylinder barrel generate relative motion, and the magnet exciting coil being wrapped on piston head generates magnetic field.
Magnetic current and liquid flow overdamp channel just must overcome the intermolecular power of magnetorheological fluid catenation, so that damping force increases, resistance
Hinder the movement of piston head.The utility model extends effective damping channel, to increase the viscous damping force of MR damper.
By adjusting size of current and direction in twin coil, the yield stress of magnetorheological fluid can be changed, reach required output damping force.
Claims (1)
1. a kind of mixed flow dynamic formula twin coil MR damper, it is characterised in that including：Left lifting lug (1), damper left end cap
(2), cylinder barrel (3), magnetic conduction disk (4), floating piston (5), damper right end cap (6), piston rod (7), the left magnetic yoke of piston head
(8), magnet exciting coil I (9), magnet exciting coil II (10), the right magnetic yoke of piston head (11), spring (12) and right lifting lug (13)；Left lifting lug
(1) internal thread hole is machined among right end, piston rod (7) left end external process has external screw thread, and the two is threadably secured connection；
It is machined with circular through hole among damper left end cap (2), between piston rod (7) and damper left end cap (2) circular through hole inner surface
Gap cooperation, and be sealed by a seal ring；Damper left end cap (2) and cylinder barrel (3) internal surface gaps cooperate, and pass through sealing
Circle is sealed；Damper left end cap (2) is fixedly connected with cylinder barrel (3) by screw；The left magnetic yoke of piston head (8) outer surface and cylinder
Cylinder (3) inner surface forms axial annular fluid flow gap I (14), the right magnetic yoke of piston head (11) outer surface and cylinder barrel (3) inner surface
Form axial annular fluid flow gap II (18)；There are four equally distributed kidney slot (19), four waists for magnetic conduction disk (4) processing
Shape hole (19) forms axial annular fluid flow gap III (16)；The left magnetic yoke of piston head (8) processes stepped；The left magnetic yoke of piston head
(8) right side abuts magnetic conduction disk (4) left side；Between the left magnetic yoke of piston head (8) step right side and magnetic conduction disk (4) left end
Gap form radial disk damping gap I (15)；The right magnetic yoke of piston head (11) processes stepped；The right magnetic yoke of piston head (11)
Left side abuts magnetic conduction disk (4) right side；Between the right magnetic yoke of piston head (11) step left side and magnetic conduction disk (4) right end
Gap forms radial disk damping gap II (17)；Axial annular fluid flow gap I (14), radial disk damping gap I (15),
Axial annular fluid flow gap III (16), radial disk damping gap II (17) and axial annular fluid flow gap II (18) are common
The fluid course that composition magnetorheological fluid flows through；The left magnetic yoke of piston head (8), magnetic conduction disk (4) and the right magnetic yoke of piston head (11) pass through
Bolt axial restraint；The left magnetic yoke of piston head (8) circumferential outer surface is machined with toroidal cavity, and magnet exciting coil I (9) is wrapped in annulus
In connected in star；The right magnetic yoke of piston head (11) circumferential outer surface is machined with toroidal cavity, and magnet exciting coil II (10) is wrapped in annulus
In connected in star；Through-hole is threaded among the left magnetic yoke of piston head (8), magnetic conduction disk (4) and the right magnetic yoke of piston head (11)；It is living
Stopper rod (7) right end is machined with external screw thread；Piston rod (7) is right with the left magnetic yoke of piston head (8), magnetic conduction disk (4) and piston head respectively
Magnetic yoke (11) passes through screw thread axial restraint；Damper right end cap (6) and cylinder barrel (3) internal surface gaps cooperate, and pass through sealing ring
It is sealed；Damper right end cap (6) is fixedly connected with cylinder barrel (3) by screw；Floating piston (5) external peripheral surface and cylinder barrel
(3) circumferential inner surface clearance fit, and be sealed by a seal ring；Position is machined with annulus among floating piston (5) right end
Shape counterbore slot, damper right end cap (6) left end centre position are machined with circular ring shape counterbore slot；Spring (12) left end and floating piston
(5) right end counterbore slot end face contacts, and spring (12) right end is contacted with damper right end cap (6) left end counterbore slot end face；Right lifting lug
(13) internal thread hole is machined among left end, damper right end cap (6) right end external process has external screw thread, and the two is solid by screw thread
Fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820514542.4U CN208107047U (en) | 2018-04-12 | 2018-04-12 | Mixed flow dynamic formula twin coil MR damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820514542.4U CN208107047U (en) | 2018-04-12 | 2018-04-12 | Mixed flow dynamic formula twin coil MR damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208107047U true CN208107047U (en) | 2018-11-16 |
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ID=64121197
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820514542.4U Expired - Fee Related CN208107047U (en) | 2018-04-12 | 2018-04-12 | Mixed flow dynamic formula twin coil MR damper |
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| Country | Link |
|---|---|
| CN (1) | CN208107047U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145605A (en) * | 2020-10-23 | 2020-12-29 | 山东电工电气日立高压开关有限公司 | Piston type magnetorheological fluid damping shock absorber |
| CN114791029A (en) * | 2021-10-19 | 2022-07-26 | 广西科技大学 | Damping force adjustable valve type magnetorheological damper |
| CN115899144A (en) * | 2022-11-10 | 2023-04-04 | 阀源智能科技(杭州)有限公司 | Control valve actuating mechanism damper with damping adjustable function and method thereof |
-
2018
- 2018-04-12 CN CN201820514542.4U patent/CN208107047U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145605A (en) * | 2020-10-23 | 2020-12-29 | 山东电工电气日立高压开关有限公司 | Piston type magnetorheological fluid damping shock absorber |
| CN114791029A (en) * | 2021-10-19 | 2022-07-26 | 广西科技大学 | Damping force adjustable valve type magnetorheological damper |
| CN114791029B (en) * | 2021-10-19 | 2023-04-25 | 广西科技大学 | Valve type magnetorheological damper with adjustable damping force |
| CN115899144A (en) * | 2022-11-10 | 2023-04-04 | 阀源智能科技(杭州)有限公司 | Control valve actuating mechanism damper with damping adjustable function and method thereof |
| CN115899144B (en) * | 2022-11-10 | 2023-08-01 | 阀源智能科技(杭州)有限公司 | Control valve actuating mechanism damper with damping adjustable function and method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |