CN206830715U - Double magnetic fields MR dampers with mixing fluid course - Google Patents
Double magnetic fields MR dampers with mixing fluid course Download PDFInfo
- Publication number
- CN206830715U CN206830715U CN201720761199.9U CN201720761199U CN206830715U CN 206830715 U CN206830715 U CN 206830715U CN 201720761199 U CN201720761199 U CN 201720761199U CN 206830715 U CN206830715 U CN 206830715U
- Authority
- CN
- China
- Prior art keywords
- end cap
- damper
- piston head
- left end
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a kind of double magnetic fields MR dampers with mixing fluid course, mainly it is made up of attenuator end cap, damper cylinder body, piston head end cap, coil winding frame, permanent magnet and magnet exciting coil etc..The damper piston head right end cap surrounding is machined with manhole, forms axial fluid course；Axial gap between piston head right end cap and piston head left end cap forms radial flow of liquid passage；Axial fluid course and radial flow of liquid passage form mixing fluid course.Permanent magnet is set on the inside of coil winding frame, internal single magnetic circuit is changed into mixed magnetic circuit, forms double acting magnetic field, increases the adjustable extent of damper output damping force.Fluid course built-in structure, the vibration in damper motion process is eliminated, improve damper stability.The damper structure is compact, small volume, can produce larger output damping force, particularly suitable for the vibration damping shock absorption system such as civil construction, automotive field.
Description
Technical field
A kind of MR damper is the utility model is related to, more particularly to a kind of double magnetic fields with mixing fluid course are made
Use MR damper.
Background technology
MR damper be designed using the magnetic rheology effect of intellectual material magnetic flow liquid as control principle it is a kind of new
Intelligent hydraulic control element.Due to the characteristics of being exported with Millisecond response speed, big control range and big damping force so that it
As half outstanding active actuators part of industrial application.At present, MR damper is widely used to building and bridge
The occasions such as the vibration damping of the vibration damping vibration prevention system of beam, rail vehicles and automobile suspension system.
Traditional MR damper, mostly using between the circular ring type damping formed between magnet exciting coil and damper cylinder body
Gap.And output damping force is improved usually through following two methods, when under identical input current, as far as possible in magnetic flow liquid
The magnetic induction intensity in damping clearance is improved in saturation range.Conventional method is to reduce the damping clearance width of MR valve,
But due to magnetic flow liquid be long placed in it is unused enable again when, easily there is particle precipitation so as to blocking damping clearance, cause magnetorheological
Defective valve.Second is exactly the length for increasing damping clearance, but can so dramatically increase the volume of MR damper, is taken more
Installing space, manufacturing cost also accordingly increases.Simultaneously as traditional MR damper piston head and damper cylinder body it
Between gap be present, piston rod easily produces side-to-side vibrations in motion process, and stability is not high.
The content of the invention
In order to overcome the problem of MR damper is present described in background technology and meet actually making for MR damper
With requiring, the utility model provides a kind of double magnetic fields MR dampers with mixing fluid course.The damper
Piston head portion is made up of four parts such as piston head left end cap, coil winding frame, permanent magnet and piston head right end caps.The damping
Device makes internal single magnetic circuit be changed into mixed magnetic circuit on the inside of coil winding frame, provided with a block permanent magnet, forms double acting magnetic field.When
When magnet exciting coil is not passed through electric current, it is placed on the permanent magnet magnetic line on the inside of coil winding frame and passes through between simultaneously vertical effective damping
Gap, make damper that there is certain initial damping force；Manhole is machined with piston rod, piston head right end cap surrounding is machined with
Manhole, form the axial fluid course passed through for magnetic flow liquid；Piston head right end cap left side and piston head left end cap are right
Axial gap thickness between end face is 1mm, forms the radial flow of liquid passage passed through for magnetic flow liquid；Axial fluid course and radial direction
Fluid course forms mixing fluid course, in the case where not increasing damper volume, improves the size of output damping force.Liquid
Circulation road is arranged on internal piston, gapless between piston head and damper cylinder body, eliminates the left side in damper motion process
Right vibration, improve the stability of damper.Compared to the MR damper of conventional piston head, producing, formed objects are viscous
In the case of damping force, volume needed for the structure is smaller, more compact structure；Have that controlled range is big, system cost is low simultaneously and
The characteristics of stability is high.
Technical scheme includes used by the utility model solves its technical problem：Left suspension ring (1), piston rod (2), damping
Device left end cap (3), damper cylinder body (4), piston head left end cap (5), coil winding frame (6), permanent magnet (7), piston head right-hand member
Cover (8), locking nut (9), right suspension ring (10), damper right end cap (11), counterbalance spring (12), floating piston (13) and encourage
Magnetic coil (14)；Left suspension ring (1) are threadably secured with piston rod (2) to be connected；Circle is machined among damper left end cap (3)
Through hole, piston rod (2) coordinates with damper left end cap (3) manhole internal surface gaps, and is sealed by sealing ring；Resistance
Buddhist nun's device left end cap (3) coordinates with damper cylinder body (4) left side gap, and is sealed by sealing ring；Damper left end cap
(3) it is fixedly connected with damper cylinder body (4) by screw；Manhole is machined among piston head left end cap (5), piston head is left
End cap (5) manhole and piston rod (2) outer surface interference fits；Piston left end cap (5) is entered by the shaft shoulder on the right side of piston rod (2)
Row axially position；Permanent magnet (7) circumferential inner surface and piston head left end cap (5) outer surface interference fits；Permanent magnet (7) passes through work
Chock plug left end cap (5) shoulder carries out axially position；Coil winding frame (6) circumferential inner surface is matched somebody with somebody with permanent magnet (7) outer surface transition
Close；Coil winding frame (6) carries out axially position by piston head left end cap (5) shoulder；It is machined among piston head right end cap (8)
Manhole, piston head right end cap (8) manhole and piston rod (2) outer surface interference fits；Piston head right end cap (8) appearance
Face and permanent magnet (7) circumferential inner surface interference fits；Piston head right end cap (8) is by carrying out axially position on the right side of permanent magnet (7)；
Piston rod (2) right-hand member is machined with external screw thread, and piston head left end cap (5), coil winding frame (6), permanent magnet (7) and piston head are right
End cap (8) is fastenedly connected by locking nut (9)；Piston rod (2) is machined with mutually perpendicular circular logical at shoulder
Hole, piston rod (2) right side are machined with circular port, are connected with mutually perpendicular manhole at piston rod (2) shoulder；Piston
Axial gap thickness between head right end cap (8) left side and piston head left end cap (5) right side is 1mm, and composition supplies magnetic flow liquid
The radial flow of liquid passage passed through；Piston head right end cap (8) surrounding is machined with manhole, forms the axial direction passed through for magnetic flow liquid
Fluid course；Coil winding frame (6) is machined with winding slot, and magnet exciting coil (14) is wrapped in coil winding frame (6) winding slot；Encourage
The lead of magnetic coil (14) is drawn by the wire lead slot of piston left end cap (5) and the fairlead of piston rod (2)；Floating piston (13)
Outer surface coordinates with damper cylinder body (4) internal surface gaps, and is sealed by sealing ring；Damper right end cap (11) left end
Centre is machined with circular counter bore, and counterbalance spring (12) right-hand member coordinates with damper right end cap (11) circular counter bore gap, compensates bullet
Spring (12) left end contacts with floating piston (13) right side；Damper right end cap (11) and damper cylinder body (4) right side gap
Coordinate, and sealed by sealing ring；Damper right end cap (11) is fixedly connected with damper cylinder body (4) by screw；Resistance
Buddhist nun's device right end cap (11) is threadably secured with right suspension ring (10) and is connected.
The utility model has an advantageous effect in that compared with background technology：
（1）The piston head portion of the utility model damper is by piston head left end cap, coil winding frame, permanent magnet and work
The part of chock plug right end cap etc. four forms.A block permanent magnet is provided with the inside of coil winding frame makes internal single magnetic circuit be changed into mixing magnetic
Road, form double acting magnetic field.When magnet exciting coil is not passed through electric current, it is placed on the permanent magnet magnetic line on the inside of coil winding frame and leads to
Simultaneously vertical effective damping gap is crossed, makes damper that there is certain initial damping force.
（2）The piston rod of the utility model damper is machined with mutually perpendicular manhole, piston rod at shoulder
Right side is machined with circular port, is connected with mutually perpendicular manhole at piston rod shoulder；Piston head right end cap left side
Axial gap thickness between piston head left end cap right side is 1mm, forms the radial flow of liquid passage passed through for magnetic flow liquid；It is living
Chock plug right end cap surrounding is machined with manhole, forms the axial fluid course passed through for magnetic flow liquid；Axial fluid course and
Radial flow of liquid passage forms mixing fluid course, in the case where not increasing damper volume, effectively increases output damping force
Size.
（3）The utility model damper fluid course is arranged on internal piston, between piston head and damper cylinder body continuously
Gap, the side-to-side vibrations in damper motion process is eliminated, improve the stability of damper.
（4）Compared to the MR damper of conventional piston header structure, the situation of formed objects viscous damping force is being produced
Under, volume needed for the utility model damper is smaller, more compact structure；Have that controlled range is big, system cost is low and steady simultaneously
The characteristics of qualitative high.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is the utility model damper Section A-A figure.
Fig. 3 is the utility model piston head right end cap side view.
Fig. 4 is the utility model permanent magnet magnetic line distribution schematic diagram.
Fig. 5 is the utility model magnet exciting coil magnetic line of force distribution schematic diagram.
Fig. 6 is the utility model fluid course schematic diagram.
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 left suspension ring 1, piston rod 2, damper left end cap 3, damper cylinder body 4, work
Chock plug left end cap 5, coil winding frame 6, permanent magnet 7, piston head right end cap 8, locking nut 9, right suspension ring 10, damper right end cap
11st, counterbalance spring 12, floating piston 13 and magnet exciting coil 14.
Fig. 2 show the utility model damper Section A-A figure.Piston rod 2 is machined with mutually perpendicular at shoulder
Manhole, the right side of piston rod 2 are machined with circular port, are connected with mutually perpendicular manhole at the shoulder of piston rod 2；
Fig. 3 show the utility model piston head right end cap side view.Piston head right end cap (8) surrounding is machined with symmetrical point
8 manholes of cloth, flowed out by the magnetic flow liquid that piston rod 2 flows into from 8 manholes.
Fig. 4 show the utility model permanent magnet magnetic line distribution schematic diagram.Piston head left end cap 5, coil winding frame 6 and
Piston head right end cap 8 is No. 10 steel permeability magnetic materials, and the magnetic line of force caused by permanent magnet 7 passes through piston head left end cap 5, coil winding frame
6 and piston head right end cap 8 formed closed-loop path.
Fig. 5 show the utility model magnet exciting coil magnetic line of force distribution schematic diagram.Piston head left end cap 5, coil winding frame 6
And piston head right end cap 8 is No. 10 steel permeability magnetic materials, magnet exciting coil 14 is left through piston head because of the magnetic line of force caused by galvanomagnetic-effect
End cap 5, coil winding frame 6 and piston head right end cap 8 form closed-loop path.
Fig. 6 show the utility model fluid course schematic diagram.Magnetic flow liquid is orthogonal close to shoulder by piston rod 2
Manhole flow into, the right-hand member inner circular through hole of piston rod 2 is flowed through, by radial flow of liquid passage from piston head right end cap 8
Manhole flows out.
Utility model works principle is as follows：
When magnet exciting coil 14 is not passed through electric current, the magnetic line of force caused by permanent magnet 7 by and perpendicular to mixing fluid course.
When magnet exciting coil 14 is passed through electric current, magnet exciting coil 14 because the magnetic line of force caused by galvanomagnetic-effect by and perpendicular to mixed liquor circulation
Road, and form double acting magnetic field with permanent magnet 7.Due to magnetic fields, mixing magnetic flow liquid its viscosity at fluid course can increase
Greatly, yield stress strengthens.Magnetic flow liquid flows through the mixing fluid course, need to overcome the intermolecular power of this catenation, from
And increase the viscous damping force of MR damper.By adjusting size of current in magnet exciting coil 14, magnetic flow liquid can be changed
Yield stress, reach required output damping force.
Claims (1)
- A kind of 1. double magnetic fields MR dampers with mixing fluid course, it is characterised in that including：Left suspension ring (1), Piston rod (2), damper left end cap (3), damper cylinder body (4), piston head left end cap (5), coil winding frame (6), permanent magnet (7), piston head right end cap (8), locking nut (9), right suspension ring (10), damper right end cap (11), counterbalance spring (12), floating Piston (13) and magnet exciting coil (14)；Left suspension ring (1) are threadably secured with piston rod (2) to be connected；Damper left end cap (3) Centre is machined with manhole, and piston rod (2) coordinates with damper left end cap (3) manhole internal surface gaps, and by close Seal is sealed；Damper left end cap (3) and damper cylinder body (4) left side gap coordinate, and are carried out by sealing ring close Envelope；Damper left end cap (3) is fixedly connected with damper cylinder body (4) by screw；Circle is machined among piston head left end cap (5) Shape through hole, piston head left end cap (5) manhole and piston rod (2) outer surface interference fits；Piston left end cap (5) passes through piston The shaft shoulder carries out axially position on the right side of bar (2)；Permanent magnet (7) circumferential inner surface and piston head left end cap (5) outer surface interference fits； Permanent magnet (7) carries out axially position by piston head left end cap (5) shoulder；Coil winding frame (6) circumferential inner surface and permanent magnet (7) outer surface interference fits；Coil winding frame (6) carries out axially position by piston head left end cap (5) shoulder；Piston head right-hand member Manhole, piston head right end cap (8) manhole and piston rod (2) outer surface interference fits are machined among lid (8)；Piston Head right end cap (8) outer surface and permanent magnet (7) circumferential inner surface interference fits；Piston head right end cap (8) is right by permanent magnet (7) Side carries out axially position；Piston rod (2) right-hand member is machined with external screw thread, piston head left end cap (5), coil winding frame (6), permanent magnet (7) and piston head right end cap (8) is fastenedly connected by locking nut (9)；Piston rod (2) is machined with mutually at shoulder Perpendicular manhole, piston rod (2) right side are machined with circular port, with mutually perpendicular circle at piston rod (2) shoulder Through hole is connected；Axial gap thickness between piston head right end cap (8) left side and piston head left end cap (5) right side is 1mm, Form the radial flow of liquid passage passed through for magnetic flow liquid；Piston head right end cap (8) surrounding is machined with manhole, and composition supplies magnetic current Become the axial fluid course that liquid passes through；Coil winding frame (6) is machined with winding slot, and magnet exciting coil (14) is wrapped in coil winding frame (6) in winding slot；The lead of magnet exciting coil (14) is drawn by the wire lead slot of piston left end cap (5) and the fairlead of piston rod (2) Go out；Floating piston (13) outer surface coordinates with damper cylinder body (4) internal surface gaps, and is sealed by sealing ring；Damping Circular counter bore, counterbalance spring (12) right-hand member and damper right end cap (11) circular counter bore are machined among device right end cap (11) left end Gap coordinates, and counterbalance spring (12) left end contacts with floating piston (13) right side；Damper right end cap (11) and damper cylinder Body (4) right side gap coordinates, and is sealed by sealing ring；Damper right end cap (11) passes through with damper cylinder body (4) Screw is fixedly connected；Damper right end cap (11) is threadably secured with right suspension ring (10) and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720761199.9U CN206830715U (en) | 2017-06-28 | 2017-06-28 | Double magnetic fields MR dampers with mixing fluid course |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720761199.9U CN206830715U (en) | 2017-06-28 | 2017-06-28 | Double magnetic fields MR dampers with mixing fluid course |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206830715U true CN206830715U (en) | 2018-01-02 |
Family
ID=60778187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720761199.9U Expired - Fee Related CN206830715U (en) | 2017-06-28 | 2017-06-28 | Double magnetic fields MR dampers with mixing fluid course |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206830715U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302149A (en) * | 2018-03-13 | 2018-07-20 | 华南理工大学 | Using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet |
| CN108302152A (en) * | 2018-04-11 | 2018-07-20 | 华东交通大学 | A kind of MR damper with complicated liquid flowing channel structure |
| CN108591350A (en) * | 2018-05-07 | 2018-09-28 | 宋金博 | A kind of rail traffic damping device |
| CN109058356A (en) * | 2018-08-27 | 2018-12-21 | 宁波麦维科技有限公司 | A kind of reciprocating damper of single-cylinder double-cavity |
| CN110454571A (en) * | 2019-08-22 | 2019-11-15 | 江西科技学院 | A kind of parking device and automobile |
| CN113074210A (en) * | 2021-03-16 | 2021-07-06 | 广西科技大学 | Passive magnetorheological vibration damper |
| CN114017467A (en) * | 2021-11-18 | 2022-02-08 | 中国科学技术大学 | Magneto-rheological damper with negative rigidity characteristic |
| CN114909423A (en) * | 2022-06-21 | 2022-08-16 | 集美大学 | Novel magnetorheological suspensions attenuator |
| CN115306855A (en) * | 2022-08-05 | 2022-11-08 | 山东克耐特油封有限公司 | Magnetorheological damper sealing assembly and using method thereof |
-
2017
- 2017-06-28 CN CN201720761199.9U patent/CN206830715U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302149A (en) * | 2018-03-13 | 2018-07-20 | 华南理工大学 | Using external coil and the coefficient double-cylinder type magneto-rheological vibration damper of permanent magnet |
| CN108302152A (en) * | 2018-04-11 | 2018-07-20 | 华东交通大学 | A kind of MR damper with complicated liquid flowing channel structure |
| CN108302152B (en) * | 2018-04-11 | 2023-10-13 | 华东交通大学 | Magnetorheological damper with complex liquid flow channel structure |
| CN108591350A (en) * | 2018-05-07 | 2018-09-28 | 宋金博 | A kind of rail traffic damping device |
| CN109058356A (en) * | 2018-08-27 | 2018-12-21 | 宁波麦维科技有限公司 | A kind of reciprocating damper of single-cylinder double-cavity |
| CN109058356B (en) * | 2018-08-27 | 2020-04-10 | 宁波麦维科技有限公司 | Single-cylinder double-cavity reciprocating damper |
| CN110454571A (en) * | 2019-08-22 | 2019-11-15 | 江西科技学院 | A kind of parking device and automobile |
| CN113074210A (en) * | 2021-03-16 | 2021-07-06 | 广西科技大学 | Passive magnetorheological vibration damper |
| CN114017467A (en) * | 2021-11-18 | 2022-02-08 | 中国科学技术大学 | Magneto-rheological damper with negative rigidity characteristic |
| CN114909423A (en) * | 2022-06-21 | 2022-08-16 | 集美大学 | Novel magnetorheological suspensions attenuator |
| CN115306855A (en) * | 2022-08-05 | 2022-11-08 | 山东克耐特油封有限公司 | Magnetorheological damper sealing assembly and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206830715U (en) | Double magnetic fields MR dampers with mixing fluid course | |
| CN105003589B (en) | A kind of built-in magnetorheological valve carries out the MR damper of damping capacity control | |
| CN104963986B (en) | A kind of MR damper with mixed flow dynamic formula fluid course | |
| CN207848291U (en) | A kind of MR damper that damping force is continuously adjusted with temperature | |
| CN207848292U (en) | A kind of biliquid circulation road MR damper with concave groove piston rod | |
| CN204985492U (en) | Flow channel establishes notched magneto rheological damper | |
| CN206904139U (en) | A kind of MR damper with multiple road conditions vibration control | |
| CN208519105U (en) | A kind of double bar-type magneto-rheological dampers out extending damp channel length | |
| CN205118105U (en) | Magneto rheological damper with parallel flow channel | |
| CN108930753A (en) | A kind of twin coil MR damper with multistage axial liquid flow damping channel | |
| CN108591343A (en) | A kind of externally-wound type MR damper of cylinder barrel positioning | |
| CN108302152B (en) | Magnetorheological damper with complex liquid flow channel structure | |
| CN108180250A (en) | A kind of built-in magnet valve improves the two-wire ring MR damper of damping capacity | |
| CN207795958U (en) | A kind of MR damper of integrated self-cooling set | |
| CN207989636U (en) | A kind of MR damper with helical spring floating piston arrangement | |
| CN206468738U (en) | Using the two-channel magnetorheological damper in double acting magnetic field | |
| CN105508494B (en) | Shock resistance MR damper | |
| CN205315604U (en) | Built -in magnetic current becomes magnetic current change attenuator that valve carries out control of damping performance | |
| CN205118106U (en) | Magneto rheological damper with serial -type flow channel | |
| CN206539641U (en) | The MR damper of mixing control is carried out using permanent magnet and twin coil | |
| CN207750432U (en) | A kind of two-wire ring MR damper of external cooling device | |
| CN208474391U (en) | A kind of externally-wound type MR damper of cylinder barrel positioning | |
| CN102927191A (en) | Coil internally-installed type magnetorheological damper with oil needle | |
| CN208107047U (en) | Mixed flow dynamic formula twin coil MR damper | |
| CN206668852U (en) | Biliquid circulation road Novel magneto-rheological damper |
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: 20180102 Termination date: 20180628 |