CN206017548U - A kind of coil external MR damper for extending effective damping gap length - Google Patents
A kind of coil external MR damper for extending effective damping gap length Download PDFInfo
- Publication number
- CN206017548U CN206017548U CN201621041836.7U CN201621041836U CN206017548U CN 206017548 U CN206017548 U CN 206017548U CN 201621041836 U CN201621041836 U CN 201621041836U CN 206017548 U CN206017548 U CN 206017548U
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- end cap
- antivibrator
- coil
- piston
- piston head
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Abstract
The utility model discloses a kind of coil external MR damper for extending effective damping gap length, is mainly made up of piston rod, attenuator end cap, antivibrator cylinder body, piston, magnet exciting coil and floating piston etc..The damper piston is combined by piston left end cap, coil right baffle-plate, bobbin winder bracket, piston head sleeve, coil right shell body and six part of piston right end cap.Using coil external structure, the stability of antivibrator is improve；On the premise of antivibrator contour structure size is not increased, increase effective damping gap length.When being passed through electric current to magnet exciting coil, the magnetic line of force passes perpendicularly through the damping clearance of prolongation, produces magnetic induction under the action of a magnetic field.By adjusting size of current, the output damping force of antivibrator can be controlled.The MR damper compact conformation, small volume, larger output damping force can be produced, be particularly suitable for the industry vibration insulating system such as aircraft, panzer.
Description
Technical field
This utility model is related to a kind of MR damper, more particularly to a kind of line for extending effective damping gap length
Circle external magnetic rheological damper.
Background technology
MR damper is a kind of intelligent device being widely used in semi-active control aystem.Mainly by excitation wire
The different size of electric current of circle input, so as to control the size in magnetic field at damping clearance, reaches the yield strength for changing magnetic flow liquid,
Realize the stepless adjustable purpose of antivibrator output damping force.Response speed block that MR damper has, span of control are big
The features such as adjustable with output damping force so as to be widely used in the vibration insulating system of building and bridge, rail vehicles and
The aspects such as the vibration damping of suspension system.
Traditional MR damper, the winding slot that is processed on the outside of piston head are the cannelure that cross-sectional area is rectangle,
The length in effective damping gap only has two sections of left and right.The viscous damping force of antivibrator is directly proportional to the length in effective damping gap.
When antivibrator applies to the situation that needs viscous damping force very big, such as offroad vehicle impact energy absorption system, aircraft lands
System etc., generally increases the length of piston head and then increases effective damping gap length, and the method often makes antivibrator outline body
Product is big, and manufacturing cost is high.In addition, traditional MR damper fluid course is arranged on the both sides of piston head, antivibrator
Less stable in motor process.
Accordingly, it would be desirable to a kind of new MR damper is designed, while effective damping gap length is increased, and energy
Keep its contour structure size to be basically unchanged, and have good stability, so as to improve the performance of MR damper.
Content of the invention
In order to overcome problem present in background technology, the utility model proposes one kind can extend effective damping gap length
Coil external MR damper.The piston of the MR damper respectively by piston head left end cap, coil right baffle-plate, around
Coil holder, piston head inner core, coil right shell body and six part of piston head right end cap composition.Knot of the antivibrator using coil external
Structure, eliminates the side-to-side vibrationss in antivibrator motor process, improves the stability of antivibrator.This structure design makes full use of
The volume of piston head, under the future for not increasing damper volume, increases effective damping gap length.Compared to conventional piston
The MR damper of head, in the case where formed objects viscous damping force is produced, the volume required less, structure of the structure is tighter
Gather；Simultaneously there is big controlled range, system cost body, the characteristics of stability is high.
This utility model solves the technical scheme adopted by its technical problem to be included：Left hanger (1), piston rod (2), damping
Device left end cap (3), antivibrator cylinder body (4), piston head left end cap (5), coil right baffle-plate (6), bobbin winder bracket (7), locking nut
(8), antivibrator right end cap (9), right hanger (10), counterbalance spring (11), floating piston (12), piston head right end cap (13), line
Circle right shell body (14), magnet exciting coil (15), piston head inner core (16)；Left hanger (1) is connected by screw threads for fastening with piston rod (2)
Connect；Manhole, piston rod (2) and antivibrator left end cap (3) manhole inner surface is machined with the middle of antivibrator left end cap (3)
Gap coordinates；Piston rod (2) is sealed by sealing ring with antivibrator left end cap (3) manhole inner surface；Antivibrator is left
End cap (3) is coordinated with antivibrator cylinder body (4) left side gap, and antivibrator left end cap (3) is solid by screw with antivibrator cylinder body (4)
Fixed connection；Manhole, manhole inner surface and piston rod (2) outer surface transition is machined with the middle of piston head left end cap (5)
Coordinate；Piston head left end cap (5) passes on left shoulder axially position on the right side of piston rod (2)；Piston head inner core (16) inner surface with
Piston rod (2) outer surface interference fits；Piston head inner core (16) passes on left axially position on the right side of piston head left end cap (5)；Line
Circle right baffle-plate (6) outer surface and bobbin winder bracket (7) inner surface interference fits；Coil right shell body (14) circumferential outer surface and bobbin winder bracket
(7) inner surface interference fits；Divide in the middle of coil right baffle-plate (6) inner surface, bobbin winder bracket (7) inner surface and coil right shell body (14)
Manhole is not machined with, and manhole inner surface is coordinated with piston head inner core (16) outer surface gap；Coil right baffle-plate (6) is left
Side is by axially position on the right side of piston head left end cap (5)；Manhole, manhole are machined with the middle of piston head right end cap (13)
Inner surface and piston rod (2) outer surface interference fits；Piston head right end cap (13) is by axially fixed on the right side of coil right shell body (14)
Position；Piston rod (2) right-hand member is machined with external screw thread, piston head left end cap (5), piston head inner core (16), piston head right end cap (13)
It is fastenedly connected by locking nut (8) with piston rod (2)；Between bobbin winder bracket (7) outer surface and antivibrator cylinder body (4) inner surface
Gap coordinates；Bobbin winder bracket (7) outer surface is sealed by sealing ring with antivibrator cylinder body (4) inner surface；Bobbin winder bracket (7) medial surface
Winding slot is machined with, magnet exciting coil (15) is wrapped in bobbin winder bracket (7) winding slot；Two leads of magnet exciting coil (15) pass through line
The fairlead of the wire lead slot and piston rod (2) of circle right baffle-plate (5) inner surface is drawn；Floating piston (12) outer surface and antivibrator cylinder
Body (4) internal surface gaps coordinate；Floating piston (12) is sealed by sealing ring with antivibrator cylinder body (4)；Antivibrator right-hand member
Circular counter bore is machined with the middle of lid (9) left end, counterbalance spring (11) right-hand member is matched somebody with somebody with antivibrator right end cap (9) circular counter bore gap
Close, counterbalance spring (11) left end is contacted with floating piston (12) right side；Antivibrator right end cap (9) is right with antivibrator cylinder body (4)
End clearance coordinates, and antivibrator right end cap (9) is fixedly connected by screw with antivibrator cylinder body (4)；Antivibrator right end cap (9) with
Antivibrator cylinder body (4) is sealed by sealing ring；Antivibrator right end cap (9) is threadably secured with right hanger (10) and is connected.
This utility model is had an advantageous effect in that compared with background technology：
（1）The piston of the MR damper is respectively by piston head left end cap, coil right baffle-plate, bobbin winder bracket, piston head
Cylinder, coil right shell body and six part of piston head right end cap composition, this structure design takes full advantage of the volume of piston head, not
On the premise of increase antivibrator contour structure size, effective damping gap length is extended.
（2）Structure of the MR damper using coil external, the left and right eliminated in antivibrator motor process shakes
Dynamic, further increase the stability of antivibrator.
（3）Compared to the MR damper of conventional piston head, the MR damper stability is higher, identical producing
In the case of size viscous damping force, the volume required less, more compact structure of the damper structure.
Description of the drawings
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model magnetic line of force distribution schematic diagram.
Fig. 3 is this utility model piston head left end cap side view.
Fig. 4 is this utility model piston head right end cap side view.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples：
As shown in figure 1, this utility model includes：Left hanger (1), piston rod (2), antivibrator left end cap (3), antivibrator cylinder
Body (4), piston head left end cap (5), coil right baffle-plate (6), bobbin winder bracket (7), locking nut (8), antivibrator right end cap (9), the right side
Hanger (10), counterbalance spring (11), floating piston (12), piston head right end cap (13), coil right shell body (14), magnet exciting coil
(15), piston head inner core (16).
Fig. 2 show this utility model magnetic line of force distribution schematic diagram.In coil right baffle-plate (6), bobbin winder bracket (7), piston head
Cylinder (16) and coil right shell body (14) are No. 10 steel permeability magnetic materials, because the magnetic line of force that galvanomagnetic-effect is formed passes through coil right baffle-plate
(6), bobbin winder bracket (7), piston head inner core (16) and coil right shell body (14) form closed-loop path.
Fig. 3 is this utility model piston head left end cap side view.Wherein, the position corresponding with fluid course is machined with 4
The individual waist through hole being arranged circumferentially；A groove is milled with piston head left end cap (5) side, for magnet exciting coil (15) lead
Draw.
Fig. 4 is this utility model piston head right end cap side view.Wherein, the position corresponding with fluid course is machined with 4
The individual waist through hole being arranged circumferentially.
Utility model works principle is as follows：
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a certain size electric current is passed through to magnet exciting coil (15), due to the left gear of coil
Plate (6), bobbin winder bracket (7), piston head inner core (16) and coil right shell body (13) are No. 10 steel permeability magnetic materials, because galvanomagnetic-effect is formed
The magnetic line of force formed and closed back through coil right baffle-plate (6), bobbin winder bracket (7), piston head inner core (16) and coil right shell body (14)
Road.The fluid course that the magnetic line of force is formed with piston head inner core (16) perpendicular to coil right baffle-plate (6), coil right shell body (14).By
Magnetic current at the fluid course that the action of a magnetic field, coil right baffle-plate (6), coil right shell body (14) are formed with piston head inner core (16)
Become liquid its viscosity to increase, yield stress strengthens.Magnetic flow liquid flows through the damping clearance of this prolongation, need to overcome this chain row
The intermolecular power of row, so that increase the viscous damping force of MR damper.By size of current in regulating winding, can change
The yield stress of magnetic flow liquid, the output damping force needed for reaching.
Claims (1)
1. a kind of coil external MR damper for extending effective damping gap length, it is characterised in that include：Hang on a left side
Ear (1), piston rod (2), antivibrator left end cap (3), antivibrator cylinder body (4), piston head left end cap (5), coil right baffle-plate (6),
Bobbin winder bracket (7), locking nut (8), antivibrator right end cap (9), right hanger (10), counterbalance spring (11), floating piston (12), work
Chock plug right end cap (13), coil right shell body (14), magnet exciting coil (15), piston head inner core (16)；Left hanger (1) and piston rod
(2) connected by screw threads for fastening；Manhole, piston rod (2) and antivibrator left end cap is machined with the middle of antivibrator left end cap (3)
(3) manhole internal surface gaps coordinate；Piston rod (2) passes through sealing ring with antivibrator left end cap (3) manhole inner surface
Sealed；Antivibrator left end cap (3) and the cooperation of antivibrator cylinder body (4) left side gap, antivibrator left end cap (3) and antivibrator
Cylinder body (4) is fixedly connected by screw；Manhole, manhole inner surface and work are machined with the middle of piston head left end cap (5)
Stopper rod (2) outer surface interference fits；Piston head left end cap (5) passes on left shoulder axially position on the right side of piston rod (2)；Piston head
Inner core (16) inner surface and piston rod (2) outer surface interference fits；Piston head inner core (16) passes on left piston head left end cap (5)
Right side axially position；Coil right baffle-plate (6) outer surface and bobbin winder bracket (7) inner surface interference fits；Coil right shell body (14) circumference
Outer surface and bobbin winder bracket (7) inner surface interference fits；Coil right baffle-plate (6) inner surface, bobbin winder bracket (7) inner surface and coil are right
Manhole is machined with the middle of baffle plate (14) respectively, and manhole inner surface is coordinated with piston head inner core (16) outer surface gap；
Coil right baffle-plate (6) passes on left axially position on the right side of piston head left end cap (5)；Circle is machined with the middle of piston head right end cap (13)
Shape through hole, manhole inner surface and piston rod (2) outer surface interference fits；Piston head right end cap (13) passes through coil right shell body
(14) axially position on the right side of；Piston rod (2) right-hand member is machined with external screw thread, piston head left end cap (5), piston head inner core (16), work
Chock plug right end cap (13) is fastenedly connected by locking nut (8) with piston rod (2)；Bobbin winder bracket (7) outer surface and antivibrator
Cylinder body (4) internal surface gaps coordinate；Bobbin winder bracket (7) outer surface is sealed by sealing ring with antivibrator cylinder body (4) inner surface；
Bobbin winder bracket (7) medial surface is machined with winding slot, and magnet exciting coil (15) is wrapped in bobbin winder bracket (7) winding slot；Magnet exciting coil (15)
Two leads drawn by the fairlead of the wire lead slot of coil right baffle-plate (6) inner surface and piston rod (2)；Floating piston (12)
Outer surface is coordinated with antivibrator cylinder body (4) internal surface gaps；Floating piston (12) is carried out by sealing ring with antivibrator cylinder body (4)
Sealing；Circular counter bore, counterbalance spring (11) right-hand member and antivibrator right end cap (9) is machined with the middle of antivibrator right end cap (9) left end
Circular counter bore gap coordinates, and counterbalance spring (11) left end is contacted with floating piston (12) right side；Antivibrator right end cap (9) and resistance
Buddhist nun device cylinder body (4) right side gap coordinates, and antivibrator right end cap (9) is fixedly connected by screw with antivibrator cylinder body (4)；Damping
Device right end cap (9) is sealed by sealing ring with antivibrator cylinder body (4)；Antivibrator right end cap (9) is passed through with right hanger (10)
Be screwed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621041836.7U CN206017548U (en) | 2016-09-07 | 2016-09-07 | A kind of coil external MR damper for extending effective damping gap length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621041836.7U CN206017548U (en) | 2016-09-07 | 2016-09-07 | A kind of coil external MR damper for extending effective damping gap length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206017548U true CN206017548U (en) | 2017-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621041836.7U Expired - Fee Related CN206017548U (en) | 2016-09-07 | 2016-09-07 | A kind of coil external MR damper for extending effective damping gap length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206017548U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019227713A1 (en) * | 2018-05-29 | 2019-12-05 | 东南大学 | Self-centring viscous damper for pre-pressed annular springs |
| CN113586646A (en) * | 2021-07-27 | 2021-11-02 | 盐城工学院 | Active control device for electromagnetic rheological shock absorber of automobile |
| CN115366940A (en) * | 2022-08-29 | 2022-11-22 | 中南大学 | Train with self-adaptive crashworthiness protection device |
-
2016
- 2016-09-07 CN CN201621041836.7U patent/CN206017548U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019227713A1 (en) * | 2018-05-29 | 2019-12-05 | 东南大学 | Self-centring viscous damper for pre-pressed annular springs |
| US11242908B2 (en) | 2018-05-29 | 2022-02-08 | Southeast University | Self-centering viscous damper with pre-pressed ring springs |
| CN113586646A (en) * | 2021-07-27 | 2021-11-02 | 盐城工学院 | Active control device for electromagnetic rheological shock absorber of automobile |
| CN115366940A (en) * | 2022-08-29 | 2022-11-22 | 中南大学 | Train with self-adaptive crashworthiness protection device |
| CN115366940B (en) * | 2022-08-29 | 2023-09-26 | 中南大学 | Train with self-adaptive crashworthiness protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170315 Termination date: 20170907 |