CN206904139U - A kind of MR damper with multiple road conditions vibration control - Google Patents
A kind of MR damper with multiple road conditions vibration control Download PDFInfo
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- CN206904139U CN206904139U CN201720822328.0U CN201720822328U CN206904139U CN 206904139 U CN206904139 U CN 206904139U CN 201720822328 U CN201720822328 U CN 201720822328U CN 206904139 U CN206904139 U CN 206904139U
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- vibration control
- exciting coil
- magnet exciting
- end cap
- cavity volume
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Abstract
The utility model discloses a kind of MR damper with multiple road conditions vibration control, mainly it is made up of combined type left end cap, resistance cylinders I, resistance cylinders II, back-moving spring, combined type right end cap, vibration control magnet exciting coil I, piston head, vibration control magnet exciting coil II, vibration control magnet exciting coil III etc..When being powered to vibration control magnet exciting coil II, the pressure difference of cavity volume I and cavity volume III is little, it is also little to export damping force, with the increase of magnet exciting coil energization number, the pressure difference of cavity volume I and cavity volume III can also increase, and output damping force also increases therewith, according to different road conditions, the output of three-stage damping power, the vibration insulating system especially suitable for automotive suspension can effectively be realized.
Description
Technical field
A kind of MR damper is the utility model is related to, more particularly to it is a kind of magnetorheological with multiple road conditions vibration control
Damper.
Background technology
The characteristics of Millisecond response speed, big control range and big damping force export possessed by MR damper, makes
Obtaining it turns into half outstanding active actuators part of industrial application.At present, MR damper is had been widely used in locomotive
And automobile suspension system vibration damping etc..When MR damper works, often the runner of magnetic flow liquid is arranged at controllable
On the closed-loop path in magnetic field, when damper piston and cylinder body generation relative motion, magnetic flow liquid flows in runner, passes through control
The shear stress for changing magnetic flow liquid with the excitation field can on flux circuit is made, realizes that damper exports damping force
Step-less adjustment.
Traditional MR damper, a damping magnet exciting coil is only set typically on piston head to magnetic current and liquid flow
Road carries out damping force control, and this is for the occasion of in general vibration, and for the automobile suspension system of Plain, vibration control can expire
Foot requires.But in desert or mountain region, with the increase of vibration frequency and amplitude, viscous damping force becomes big, provided with single resistance
The automotive suspension of Buddhist nun's magnet exciting coil can not meet in controllable damping force, controllable damping ratio and controllable speed scope etc.
Demand, such as armoring suspension suspension, offroad vehicle automobile suspension system etc., can typically by sacrifice MR damper
Damping force and the longitudinal length for increasing effective damping passage of aggrandizement apparatus volume are controlled to realize, significantly limit magnetorheological damping
The application of device.
Therefore, it is necessary to design a kind of Novel magneto-rheological damper, neither reduce the controllable damping force of output and do not increase, from
And improve the performance of MR damper.
The content of the invention
In order to overcome problem present in background technology and meet MR damper actual operation requirements, the utility model
It is proposed a kind of MR damper with multiple road conditions vibration control.It is mounted with to process in the valve type damper piston head of routine
Have the resistance cylinders II of two grooves, for placing vibration control magnet exciting coil I and vibration control magnet exciting coil III, while with resistance
Buddhist nun's cylinder body I forms valve type damp channel, and a back-moving spring has been laid between piston head and right end cap common.Damping is encouraged
When magnetic coil is not powered on, fluid course is all-pass, not by any obstruction, can free movement vertically, on automotive suspension
Piston replys initial position by camber of spring；When automobile is travelling in common road, automobile is due to self gravitation and road surface
Situation can produce small amplitude motion, be powered to the vibration control magnet exciting coil II in piston head, now in fluid course row into two
Section damping, closing cavity volume I and the closing pressure differential of cavity volume III are little, therefore it is also little to export damping force；When automobile is in irregularity highway
During upper traveling, at this moment automobile is only encouraged because Uneven road can make suspension produce strong vibration to the vibration control in piston head
Magnetic coil II, which is powered, to be not enough to offset closing cavity volume I and close the pressure differential of cavity volume III to vibrate caused by, now to vibration control
Magnet exciting coil II and vibration control magnet exciting coil I are powered simultaneously, in liquid
Circulation road row is changed into original twice into four sections of dampings, closing cavity volume I and the closing pressure differential of cavity volume III, therefore vibrational energy
Enough it is cancelled；When automobile is travelling on rough hill path, automotive suspension because Uneven road can cause violent vibration,
At this moment it is powered simultaneously to vibration control magnet exciting coil I, vibration control magnet exciting coil II and vibration control magnet exciting coil III, in liquid stream
Passage row offsets vibration caused by closing cavity volume I and the closing pressure differential of cavity volume III into six sections of dampings.This structure design passes through
The circulation passage for limiting magnetic flow liquid provides the output of three-stage damping power.Do not increasing the premise of damping clearance length and electric current
Under, it is possible to provide larger output damping force, in the automotive suspension especially suitable for multiple road conditions vibration control.
Technical scheme includes used by the utility model solves its technical problem：Piston rod (1), combined type left end cap
(2), resistance cylinders I (3), resistance cylinders II (4), back-moving spring (5), combined type right end cap (6), vibration control magnet exciting coil I
(7), piston head (8), vibration control magnet exciting coil II（9）, vibration control magnet exciting coil III (10)；In combined type left end cap (2)
Between be machined with manhole, piston rod (1) coordinates with combined type left end cap (2) internal surface gaps, and piston rod (1) is left with combined type
End cap (2) inner surface is sealed by sealing ring；Combined type left end cap (2) and resistance cylinders I (3) and resistance cylinders II (4)
Left side be fixedly connected respectively by screw, between combined type left end cap (2) and resistance cylinders I (3), resistance cylinders II (4)
Sealed by sealing ring；Counterbore groove of the combined type left end cap (2) provided with two radial arrangements, combined type right end cap (6),
Resistance cylinders I (3), resistance cylinders II (4) are fixedly connected by screw, are sealed by sealing ring；Piston rod (1) right-hand member
It is machined with external screw thread；Piston head (8) center is machined with through hole, and the piston rod (1) and piston head (8) interference for being machined with step are matched somebody with somebody
Close；Piston rod (1) is fastenedly connected with piston head (8) by nut；It is equipped between piston head (8) and combined type right end cap (6)
Back-moving spring (5)；Damper cavity is built with magnetic flow liquid；Resistance cylinders II (4) are provided with 8 circles passed through for magnetic flow liquid
Annular damper passage；Two grooves, vibration control magnet exciting coil I (7) and vibration control excitation are machined with resistance cylinders II (4)
Coil III (10) is respectively wound around on the groove of resistance cylinders II (4), and lead is drawn from the fairlead on resistance cylinders II (4)；
In the groove of piston head (8) outer surface, two leads are drawn by the fairlead of piston rod (1)；Damper hangs installed in automobile
In frame.Vibration control magnet exciting coil I（7）, vibration control magnet exciting coil II (9), vibration control magnet exciting coil III (10) form three
Level vibration control magnet exciting coil；It is logical to vibration control magnet exciting coil II (9) when piston rod caused by general Plain road vibrates
Electricity, magnetorheological change fluid viscosity step-down, forming one section of damping makes piston rod vibration decay；Cause when in the serious road of road damage
Piston rod vibration when, to vibration control magnet exciting coil II (9) and vibration control magnet exciting coil I（7）It is powered simultaneously, damp channel
Middle two sections of effective dampings for producing series connection, the rapid decay of piston rod vibration；When piston rod caused by rugged mountain path vibrates, give
Vibration control magnet exciting coil II (9), vibration control magnet exciting coil I（7）It is powered simultaneously with vibration control magnet exciting coil III (10), magnetic
Rheology liquid magnetizes to form three sections of effective series dampeds, the rapid decay of piston rod vibration.Combined type left end cap (2), piston head (8),
Cavity volume I is surrounded between resistance cylinders I (3)；Resistance cylinders I (3), resistance cylinders II (4), combined type left end cap (2) and combined type
Right end cap (6) surrounds cavity volume II；Piston head (8), resistance cylinders I (3), combined type right end cap surround cavity volume III between (6)；Work as work
Stopper rod (1) vertically extensional motion when, the magnetic flow liquid in cavity volume I sequentially enters cavity volume II and cavity volume III by damp channel；
When piston rod (1) is in axial direction compressed, the magnetic flow liquid in cavity volume III sequentially enters the He of cavity volume II by fluid course
Cavity volume I；When piston rod (1) in axial direction moves, the volume of cavity volume I and cavity volume III can change, back-moving spring (5) spring
It is deformed, now spring can realize the balance of piston position by the contractile motion of axial direction.
The utility model has an advantageous effect in that compared with background technology：
(1), the utility model MR damper is in the first magnet exciting coil normal power-up and the constant situation of electrical current
Under, the vibration-damping function of different occasions is realized by the number being powered to control magnet exciting coil；When automobile is in common road row
When sailing, it need to be only powered to the vibration control magnet exciting coil II in piston head；When being travelled on the highway in irregularity, it is necessary to simultaneously
Be powered the control that could meet automotive suspension to vibration simultaneously to vibration control magnet exciting coil II and vibration control magnet exciting coil I；
When running car is in hill path, to give control magnet exciting coil I, vibration control magnet exciting coil II and vibration control magnet exciting coil III same
Shi Tong electricity, row offset the vibration of suspension into six sections of dampings；As the increase of energization number makes output damping force at double, the three of row
Level vibration damping adapts to different occasions；On the premise of damper longitudinal length and volume is not increased, it is possible to provide larger output
Damping force, the automotive suspension especially suitable for multiple road conditions vibration control.
Part resistance cylinders I (3), resistance cylinders II (4), piston head (8) point used in the utility model MR damper
It is not made up of mild steel permeability magnetic material；Remaining parts are made by non-magnet_conductible material.This design gives full play to vertical magnetic field pair
The effect of magnetic flow liquid, back-moving spring (5) contraction is also allowed for, realizes the control of vibration.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Magnetic flow liquid flows through fluid course schematic diagram when Fig. 2 is the utility model piston rod Tensile.
Fig. 3 is the distribution of the first working condition magnetic line of force of the utility model and effective damping gap schematic diagram.
Fig. 4 is second of working condition magnetic line of force distribution of the utility model and effective damping gap schematic diagram.
Fig. 5 is the distribution of the third working condition magnetic line of force of the utility model and effective damping gap schematic diagram.
Fig. 6 is the side view of the utility model piston head left end cap.
Fig. 7 is the side view of the utility model piston head right end cap.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples：
As shown in figure 1, the utility model includes：Piston rod (1), combined type left end cap (2), resistance cylinders I (3), damping
Cylinder body II (4), back-moving spring (5), combined type right end cap (6), vibration control magnet exciting coil I (7), piston head (8), vibration control
Magnet exciting coil II（9）, vibration control magnet exciting coil III (10).
Magnetic flow liquid flows through fluid course schematic diagram when Fig. 2 is the utility model piston rod Tensile.Wherein, combined type is left
Cavity volume I is surrounded between end cap (2), piston head (8), resistance cylinders I (3)；Resistance cylinders I (3), resistance cylinders II (4), combined type
Left end cap (2) and combined type right end cap (6) surround cavity volume II；Piston head (8), resistance cylinders I (3), combined type right end cap (6)
Between surround cavity volume III；When piston rod (1) extensional motion vertically, the magnetic flow liquid in cavity volume I passes through damp channel successively
Into cavity volume II and cavity volume III；When piston rod (1) is in axial direction compressed, the magnetic flow liquid in cavity volume III leads to by liquid stream
Road sequentially enters cavity volume II and cavity volume I.
Fig. 3 is the distribution of the first working condition magnetic line of force of the utility model and effective damping gap schematic diagram.When to piston
Vibration control magnet exciting coil II in head（9）During energization, what resistance cylinders I (3), resistance cylinders II (4) and piston head were formed closes
Close magnetic field to damp into two sections of liquid streams in fluid course row, with small vibration, output caused by closing cavity volume I and the closing pressure differential of cavity volume III
Damping force is smaller.
Fig. 4 is second of working condition magnetic line of force distribution of the utility model and effective damping gap schematic diagram.When to vibration
Control magnet exciting coil II and vibration control magnet exciting coil I are powered simultaneously, resistance cylinders I (3), resistance cylinders II (4) and piston head
The closed magnetic field of formation damps in fluid course row into four sections of liquid streams, and row damps into four sections of liquid streams at fluid course, and closing is held
Chamber I and the closing pressure differential of cavity volume III are changed into original twice, vibration aggravation, therefore exportable larger damping force.
Fig. 5 is the distribution of the third working condition magnetic line of force of the utility model and effective damping gap schematic diagram.Controlled to vibration
Magnet exciting coil I, vibration control magnet exciting coil II and vibration control magnet exciting coil III processed are powered simultaneously, resistance cylinders I (3), damping
The closed magnetic field that cylinder body II (4) and piston head are formed damps in fluid course row into six sections of liquid streams, in fluid course row into six sections
Damping is vibrated to offset closing cavity volume I and the closing pressure differential of cavity volume III caused by.
Fig. 6 is the utility model resistance cylinders I (3) sectional view.Wherein, at resistance cylinders I (3) both ends and fluid course phase
Corresponding position is respectively machined with 4 waist through hole being arranged circumferentially.When damper efforts state, this design side
Formula can make fluid course form an entirety, the fluid course for magnetic flow liquid disengaging；Realize control and the piston head of vibration
Reset.
Fig. 7 is the utility model resistance cylinders II (4) sectional view.Resistance cylinders II (4) outer surface is machined with two grooves
Size for power control output damping force.
Utility model works principle is as follows：
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, when to piston head（8）In vibration control magnet exciting coil II（9）It is powered
When, resistance cylinders I (3), resistance cylinders II (4) and piston head（8）The closed magnetic field of formation is in fluid course row into two sections of liquid streams
With small vibration caused by damping, closing cavity volume I and the closing pressure differential of cavity volume III, output damping force is smaller.When giving vibration control excitation
Coil II and vibration control magnet exciting coil I are powered simultaneously, resistance cylinders I (3), resistance cylinders II (4) and piston head（8）Formed
Closed magnetic field damps in fluid course row into four sections of liquid streams, and row damps into four sections of liquid streams at fluid course, closes cavity volume I and envelope
Close the pressure differential of cavity volume III to be changed into original twice, vibration aggravation, therefore exportable larger damping force.To vibration control magnet exciting coil I,
Vibration control magnet exciting coil II and vibration control magnet exciting coil III are powered simultaneously, resistance cylinders I (3), resistance cylinders II (4) and work
Chock plug（8）The closed magnetic field of formation damps in fluid course row into six sections of liquid streams, is damped in fluid course row into six sections to offset
Close vibration caused by cavity volume I and the closing pressure differential of cavity volume III.
Claims (3)
- A kind of 1. MR damper with multiple road conditions vibration control, it is characterised in that including：Piston rod (1), combined type are left End cap (2), resistance cylinders I (3), resistance cylinders II (4), back-moving spring (5), combined type right end cap (6), vibration control excitation wire Enclose I (7), piston head (8), vibration control magnet exciting coil II（9）, vibration control magnet exciting coil III (10)；Combined type left end cap (2) Centre is machined with manhole, and piston rod (1) coordinates with combined type left end cap (2) internal surface gaps, piston rod (1) and combined type Left end cap (2) inner surface is sealed by sealing ring；Combined type left end cap (2) and resistance cylinders I (3) and resistance cylinders II (4) left side is fixedly connected by screw respectively, combined type left end cap (2) and resistance cylinders I (3), resistance cylinders II (4) it Between sealed by sealing ring；Counterbore groove of the combined type left end cap (2) provided with two radial arrangements, combined type right end cap (6), Resistance cylinders I (3), resistance cylinders II (4) are fixedly connected by screw, are sealed by sealing ring；Piston rod (1) right-hand member adds Work has external screw thread；Piston head (8) center is machined with through hole, and the piston rod (1) and piston head (8) for being machined with step are interference fitted； Piston rod (1) is fastenedly connected with piston head (8) by nut；Equipped with reset between piston head (8) and combined type right end cap (6) Spring (5)；Damper cavity is built with magnetic flow liquid；Resistance cylinders II (4) are provided with 8 annulars passed through for magnetic flow liquid Damp channel；Two grooves, vibration control magnet exciting coil I (7) and vibration control magnet exciting coil are machined with resistance cylinders II (4) III (10) are respectively wound around on the groove of resistance cylinders II (4), and lead is drawn from the fairlead on resistance cylinders II (4)；Piston In the groove of head (8) outer surface, two leads are drawn by the fairlead of piston rod (1)；Damper is arranged in automotive suspension.
- A kind of 2. MR damper with multiple road conditions vibration control according to claim 1, it is characterised in that：Vibration Control magnet exciting coil I（7）, vibration control magnet exciting coil II (9), vibration control magnet exciting coil III (10) form three-level vibration control Magnet exciting coil；When piston rod caused by general Plain road vibrates, it is powered to vibration control magnet exciting coil II (9), it is magnetorheological Fluid viscosity step-down, forming one section of damping makes piston rod vibration decay；Shaken when in piston rod caused by the serious road of road damage When dynamic, to vibration control magnet exciting coil II (9) and vibration control magnet exciting coil I（7）It is powered simultaneously, series connection is produced in damp channel Two sections of effective dampings, the rapid decay of piston rod vibration；When piston rod caused by rugged mountain path vibrates, encouraged to vibration control Magnetic coil II (9), vibration control magnet exciting coil I（7）It is powered simultaneously with vibration control magnet exciting coil III (10), magnetic flow liquid magnetic Change and form three sections of effective series dampeds, the rapid decay of piston rod vibration.
- 3. a kind of MR damper with multiple road conditions vibration control according to claim 1,It is characterized in that：Cavity volume I is surrounded between combined type left end cap (2), piston head (8), resistance cylinders I (3)；Resistance cylinders I (3), resistance cylinders II (4), combined type left end cap (2) and combined type right end cap (6) surround cavity volume II；Piston head (8), damped cylinder Body I (3), combined type right end cap surround cavity volume III between (6)；When piston rod (1) extensional motion vertically, the magnetic in cavity volume I Rheology liquid sequentially enters cavity volume II and cavity volume III by damp channel；When piston rod (1) is in axial direction compressed, cavity volume III Interior magnetic flow liquid sequentially enters cavity volume II and cavity volume I by fluid course；When piston rod (1) in axial direction moves, cavity volume I It can be changed with the volume of cavity volume III, back-moving spring (5) spring is deformed, and now spring can pass through the contractile motion of axial direction To realize the balance of piston position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720822328.0U CN206904139U (en) | 2017-07-09 | 2017-07-09 | A kind of MR damper with multiple road conditions vibration control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720822328.0U CN206904139U (en) | 2017-07-09 | 2017-07-09 | A kind of MR damper with multiple road conditions vibration control |
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| CN206904139U true CN206904139U (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720822328.0U Expired - Fee Related CN206904139U (en) | 2017-07-09 | 2017-07-09 | A kind of MR damper with multiple road conditions vibration control |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087482A (en) * | 2018-01-24 | 2018-05-29 | 华东交通大学 | A kind of sinuous formula MR damper of external multi-coil excitation |
| CN110159863A (en) * | 2019-06-04 | 2019-08-23 | 北京石油化工学院 | A kind of pipeline MR damper based on active control |
| CN110332275A (en) * | 2019-07-30 | 2019-10-15 | 福州大学 | A kind of full tunnel shear extrusion mixed mode MR damper and its control method |
| CN113586646A (en) * | 2021-07-27 | 2021-11-02 | 盐城工学院 | Active control device for electromagnetic rheological shock absorber of automobile |
| CN114412950A (en) * | 2021-12-13 | 2022-04-29 | 重庆大学 | Multistage excitation dual-cylinder magnetorheological damper and control method thereof |
| CN115126814A (en) * | 2022-05-27 | 2022-09-30 | 深圳市朝上科技有限责任公司 | Magneto-rheological damper with fan blade annular flow channel |
-
2017
- 2017-07-09 CN CN201720822328.0U patent/CN206904139U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087482A (en) * | 2018-01-24 | 2018-05-29 | 华东交通大学 | A kind of sinuous formula MR damper of external multi-coil excitation |
| CN110159863A (en) * | 2019-06-04 | 2019-08-23 | 北京石油化工学院 | A kind of pipeline MR damper based on active control |
| CN110159863B (en) * | 2019-06-04 | 2020-12-01 | 北京石油化工学院 | Pipeline magnetorheological damper based on active control |
| CN110332275A (en) * | 2019-07-30 | 2019-10-15 | 福州大学 | A kind of full tunnel shear extrusion mixed mode MR damper and its control method |
| CN113586646A (en) * | 2021-07-27 | 2021-11-02 | 盐城工学院 | Active control device for electromagnetic rheological shock absorber of automobile |
| CN114412950A (en) * | 2021-12-13 | 2022-04-29 | 重庆大学 | Multistage excitation dual-cylinder magnetorheological damper and control method thereof |
| CN114412950B (en) * | 2021-12-13 | 2024-02-02 | 重庆大学 | Multistage excitation double-cylinder magnetorheological damper and control method thereof |
| CN115126814A (en) * | 2022-05-27 | 2022-09-30 | 深圳市朝上科技有限责任公司 | Magneto-rheological damper with fan blade annular flow channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 Termination date: 20180709 |