CN208057804U - A kind of new permanent-magnet formula MR damper - Google Patents
A kind of new permanent-magnet formula MR damper Download PDFInfo
- Publication number
- CN208057804U CN208057804U CN201820188414.5U CN201820188414U CN208057804U CN 208057804 U CN208057804 U CN 208057804U CN 201820188414 U CN201820188414 U CN 201820188414U CN 208057804 U CN208057804 U CN 208057804U
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- magnet
- magnetism
- flange
- cylinder barrel
- interior
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- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a kind of new permanent-magnet formula MR damper,Including cylinder barrel,Piston mechanism,Outer magnetic mechanism and inner magnetic machine structure,Cylinder barrel upper and lower ends are connected separately with upper end cover and bottom end cover,Outer magnetic mechanism is connected on the inner wall of cylinder barrel,The inside of outer magnetic mechanism is arranged in piston mechanism,Inner magnetic machine structure is arranged on piston mechanism,Spring assembly is equipped in the cylinder barrel of piston mechanism lower end,It is provided with magnetorheological fluid in cylinder barrel on the inside of outer magnetic mechanism,Outer magnetic mechanism includes outer magnet ring and outer magnetism-isolating loop,Outer magnet ring and outer magnetism-isolating loop are in annular shape,Outer magnet ring and outer magnetism-isolating loop have multiple,Multiple outer magnet rings and multiple outer magnetism-isolating loops are alternately superimposed cylindrical,Inner magnetic machine structure is made of two interior magnet rings and an interior magnetism-isolating loop,The size that the utility model damper passes through permanent magnet automatic damping adjusting power,Novelty simple in structure,Securely and reliably,Practicability is high.
Description
Technical field
The utility model is related to machinery fields, and in particular to a kind of new permanent-magnet formula MR damper.
Background technology
MR damper be using the rheological behavior of magnetorheological fluid and develop a kind of most with prospects half actively
Control device has both the adaptability of the reliability and active control that passively control, and again low compared to active control energy consumption, has
Wide dynamic range, corresponding speed block, low energy consumption, mechanical structure is simple, environmental robustness is strong, easily prominent with microcomputer control combination etc.
Advantage.MR damper has been widely used in vibration control system, such as vehicle suspension system, undercarriage system
The fields such as system, building earthquake prevention system, medical rehabilitation system.
Utility model content
The purpose of this utility model is to provide a kind of new permanent-magnet formula MR damper, which passes through permanent magnetism
The size of iron automatic damping adjusting power, novelty simple in structure, securely and reliably, practicability are high.
To achieve the goals above, the technical solution of use is the utility model：
A kind of new permanent-magnet formula MR damper, including cylinder barrel, piston mechanism, outer magnetic mechanism and inner magnetic machine structure, cylinder
Cylinder upper and lower ends are connected separately with upper end cover and bottom end cover, and outer magnetic mechanism is connected on the inner wall of cylinder barrel, and piston mechanism setting is outer
The inside of magnetic mechanism, inner magnetic machine structure are arranged on piston mechanism, and spring assembly, outer magnetomechanical are equipped in the cylinder barrel of piston mechanism lower end
It is provided with magnetorheological fluid in cylinder barrel on the inside of structure.
Preferably, the outer magnetic mechanism includes outer magnet ring and outer magnetism-isolating loop, and outer magnet ring and outer magnetism-isolating loop are in
Annular shape, outer magnet ring and outer magnetism-isolating loop have it is multiple, multiple outer magnet rings and multiple outer magnetism-isolating loops alternately superposition in circle
Tubular.
Preferably, the piston mechanism includes overhead gage, cock body and lower baffle plate, and the upper and lower ends of cock body are separately connected gear
The upper end of plate and lower baffle plate, overhead gage is connected with piston rod, and piston rod passes through upper end cover.
Preferably, the inner magnetic machine structure is made of two interior magnet rings and an interior magnetism-isolating loop, two interior magnet rings
It is alternately socketed on cock body with an interior magnetism-isolating loop, interior magnetism-isolating loop is located between two interior magnet rings.
Preferably, there are four the outer magnet rings, there are four outer magnetism-isolating loops, the lower end of upper end cover and outer magnet ring phase
It connects, the upper end of bottom end cover connects with outer magnetism-isolating loop.
Preferably, the cylinder barrel includes cylinder, first flange and second flange, and first flange is connected to the upper end of cylinder
Portion, second flange are connected to the lower end of cylinder.
Preferably, the upper end cover includes upper cover body and is connected to the third flange of upper cover body lower part, under bottom end cover includes
Lid and the 4th flange for being connected to lower cover lower part, third flange is affixed with first flange by bolt, and the 4th flange passes through
Bolt is affixed with second flange.
Preferably, end cap through-hole is provided in the middle part of the upper cover body, piston rod passes through end cap through-hole and can be in end cap through-hole
It inside moves up and down, inner end cap groove is offered on the inner wall of end cap through-hole, outer end cap groove is offered on the outer wall of upper cover body, it is interior
Interference fit has seal washer in the inner and outer end cap groove of end cap groove.
The utility model has the beneficial effects that：
Above-mentioned new permanent-magnet formula MR damper, this damper are provided with novel outer magnetic mechanism and inner magnetic machine structure,
By the variation of the magnetic flux in the damp channel between outer magnetic mechanism and inner magnetic machine structure, the size of automatic damping adjusting power, no
Need external power supply, sensor, the equipment such as controller.This damper structure is simple, safe and reliable, can effectively avoid pacifying
Full hidden danger.The dampening range that this damper is adjusted is big, and dynamic response is fast.
Description of the drawings
Fig. 1 is new permanent-magnet formula MR damper overall structure schematic cross-sectional view.
Fig. 2 is new permanent-magnet formula MR damper partial schematic sectional view.
Fig. 3 is new permanent-magnet formula MR damper overall structure isometric view.
Fig. 4 is piston mechanism and inner magnetic machine structure connection structure schematic cross-sectional view.
Fig. 5 is upper end cover overall structure schematic elevation view.
Fig. 6 is bottom end cover overall structure schematic elevation view.
Specific implementation mode
The utility model is described in detail below in conjunction with the accompanying drawings：
In conjunction with Fig. 1 to Fig. 6, a kind of new permanent-magnet formula MR damper, including cylinder barrel 1, piston mechanism 2, outer magnetomechanical
Structure 3 and inner magnetic machine structure 4.1 upper and lower ends of cylinder barrel are connected separately with upper end cover 5 and bottom end cover 6, are connected on the inner wall of cylinder barrel 1 outer
Magnetic mechanism 3, piston mechanism 2 are arranged in the cylinder barrel 1 of the inside of outer magnetic mechanism 3, and inner magnetic machine structure 4 is arranged on piston mechanism 2, piston
It is equipped with spring assembly 7 in the cylinder barrel 1 of 2 lower end of mechanism, magnetorheological fluid is provided in the gap of the inside of outer magnetic mechanism 3, it is magnetorheological
Liquid is liquid, and the magnetorheological fluid of liquid is filled in the cylinder barrel 1 of outer 3 inside of magnetic mechanism of cylinder.
Cylinder barrel 1 includes cylinder 11, first flange 12 and second flange 13, and first flange 12 is connected to the upper end of cylinder 11
Outside, second flange 13 is connected to the outside of the lower end of cylinder 11.
Piston mechanism 2 is made of overhead gage 21, cock body 22 and lower baffle plate 23, and the upper and lower ends of cock body 22 are separately connected gear
The upper end of plate 21 and lower baffle plate 23, overhead gage 22 is connected with piston rod 24, and piston rod 24 passes through upper end cover 5.
Outer magnetic mechanism 3 includes outer magnet ring 31 and outer magnetism-isolating loop 32, and outer magnet ring 31 and outer magnetism-isolating loop 32 are in circle
It is cyclic annular.Outer magnet ring 31 and outer magnetism-isolating loop 32 have multiple, and multiple outer magnet rings 31 and multiple outer magnetism-isolating loops 32 are alternately folded
Add cylindrical.In the utility model, there are four outer magnet rings 31, and there are four outer magnetism-isolating loops 32, the lower end of upper end cover 5 with it is outer
Magnet ring 31 connects, and the upper end of bottom end cover 6 connects with outer magnetism-isolating loop 32.
Inner magnetic machine structure 4 is made of two interior magnet rings 41 and an interior magnetism-isolating loop 42, two interior magnet rings 41 and one
A interior magnetism-isolating loop 42 is alternately sleeved on cock body 22, and interior magnetism-isolating loop 42 is located between two interior magnet rings 41.
Upper end cover 5 includes upper cover body 51 and the third flange 52 for being connected to 51 lower part of upper cover body, and bottom end cover 6 includes lower cover
61 and it is connected to the 4th flange 62 of 61 lower part of lower cover, third flange 52 is affixed by bolt and first flange 12, the 4th method
Orchid 62 is affixed by bolt and second flange 13.The middle part of upper cover body 5 is provided with end cap through-hole 511, and piston rod 24 is logical across end cap
Hole 511 can simultaneously move up and down in end cap through-hole 511, and inner end cap groove 512, upper cover are offered on the inner wall of end cap through-hole 511
Outer end cap groove 513 is offered on the outer wall of body 51, there is interference fit in 512 inner and outer end cap groove 513 of inner end cap groove
Seal washer.
Above-mentioned new permanent-magnet formula MR damper is damp channel, damping between inner magnetic machine structure 4 and outer magnetic mechanism 3
Magnetorheological fluid is filled in channel.When in inner magnetic machine structure 4 interior magnet ring 41 and outer magnet ring 31 be in same level position
When setting, the magnetic flux density in damp channel is maximum so that the magnetorheological fluid in corresponding damp channel was cashed in magnetic field bends
Take power maximum.
When piston mechanism 2 is moved downward by external force, dislocation, damping occur for interior magnet ring 41 and outer magnet ring 31
The magnetic flux density of magnetorheological fluid can also reduce accordingly in channel, when interior magnet ring 41 and outer magnetism-isolating loop 32 are in same level
When position, the magnetic flux density in damp channel is minimum so that the magnetorheological fluid in corresponding damp channel was cashed in magnetic field
Yield force also becomes minimum.
Then piston mechanism 2 continues to move downward, and interior magnet ring 41 and outer magnet ring 31 are gradually in same water
Prosposition is set, and in the process, the yield force that the magnetorheological fluid in corresponding damp channel is cashed in magnetic field becomes larger, when interior
When interior magnet ring 41 and outer magnet ring 31 in magnetic mechanism 4 are in the same horizontal position, the magnetic flux density in damp channel
It is maximum so that the yield force that the magnetorheological fluid in corresponding damp channel is cashed in magnetic field is maximum.Outer magnet ring 31 and outer
Magnetism-isolating loop 32 have it is multiple, during the raising and lowering of piston mechanism 2, magnetorheological fluid in damp channel bending in magnetic field
Awave variation can be passed through by taking power.When generating choppiness variation in surrender, the raising and lowering of piston mechanism can lead to
The counteracting for crossing yield force tends towards stability.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model, are also answered
Belong to the scope of protection of the utility model.
Claims (8)
1. a kind of new permanent-magnet formula MR damper, which is characterized in that including cylinder barrel, piston mechanism, outer magnetic mechanism and interior
Magnetic mechanism, cylinder barrel upper and lower ends are connected separately with upper end cover and bottom end cover, outer magnetic mechanism, piston machine are connected on the inner wall of cylinder barrel
The inside of outer magnetic mechanism is arranged in structure, and inner magnetic machine structure is arranged on piston mechanism, and groups of springs is equipped in the cylinder barrel of piston mechanism lower end
Part is provided with magnetorheological fluid in the cylinder barrel on the inside of outer magnetic mechanism.
2. a kind of new permanent-magnet formula MR damper according to claim 1, which is characterized in that the outer magnetic mechanism
Including outer magnet ring and outer magnetism-isolating loop, outer magnet ring and outer magnetism-isolating loop are in annular shape, outer magnet ring and outer magnetism-isolating loop
Have multiple, multiple outer magnet rings and multiple outer magnetism-isolating loops are alternately superimposed cylindrical.
3. a kind of new permanent-magnet formula MR damper according to claim 1, which is characterized in that the piston mechanism
Including overhead gage, cock body and lower baffle plate, the upper and lower ends of cock body are separately connected overhead gage and lower baffle plate, the upper end connection of overhead gage
There are piston rod, piston rod to pass through upper end cover.
4. a kind of new permanent-magnet formula MR damper according to claim 3, which is characterized in that the inner magnetic machine structure
It is made of two interior magnet rings and an interior magnetism-isolating loop, two interior magnet rings and an interior magnetism-isolating loop are alternately socketed in plug
On body, interior magnetism-isolating loop is located between two interior magnet rings.
5. a kind of new permanent-magnet formula MR damper according to claim 2, which is characterized in that the outer permanent magnet
There are four rings, and there are four outer magnetism-isolating loops, and the lower end of upper end cover connects with outer magnet ring, the upper end of bottom end cover and outer magnetism-isolating loop phase
It connects.
6. a kind of new permanent-magnet formula MR damper according to claim 1, which is characterized in that the cylinder barrel includes
Cylinder, first flange and second flange, first flange are connected to the upper end of cylinder, and second flange is connected to the lower end of cylinder
Portion.
7. a kind of new permanent-magnet formula MR damper according to claim 6, which is characterized in that the upper end cover packet
Upper cover body and the third flange for being connected to upper cover body lower part are included, bottom end cover includes lower cover and is connected to the 4th of lower cover lower part
Flange, third flange is affixed with first flange by bolt, and the 4th flange is affixed with second flange by bolt.
8. a kind of new permanent-magnet formula MR damper according to claim 7, which is characterized in that the upper cover body
Middle part is provided with end cap through-hole, and piston rod passes through end cap through-hole and can be moved up and down in end cap through-hole, on the inner wall of end cap through-hole
Inner end cap groove is offered, offers outer end cap groove on the outer wall of upper cover body, in the inner and outer end cap groove of inner end cap groove
Interference fit has seal washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820188414.5U CN208057804U (en) | 2018-02-02 | 2018-02-02 | A kind of new permanent-magnet formula MR damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820188414.5U CN208057804U (en) | 2018-02-02 | 2018-02-02 | A kind of new permanent-magnet formula MR damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057804U true CN208057804U (en) | 2018-11-06 |
Family
ID=63992772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820188414.5U Expired - Fee Related CN208057804U (en) | 2018-02-02 | 2018-02-02 | A kind of new permanent-magnet formula MR damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057804U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167371A (en) * | 2018-02-02 | 2018-06-15 | 山东科技大学 | A kind of new permanent-magnet formula MR damper |
| CN111156281A (en) * | 2020-02-13 | 2020-05-15 | 重庆三峡学院 | Multistage adjustable axial extrusion type permanent magnet magnetorheological damper |
| CN114135619A (en) * | 2021-11-13 | 2022-03-04 | 安徽工程大学 | Damping type energy dissipation device repairing device based on magnetic control principle |
-
2018
- 2018-02-02 CN CN201820188414.5U patent/CN208057804U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167371A (en) * | 2018-02-02 | 2018-06-15 | 山东科技大学 | A kind of new permanent-magnet formula MR damper |
| CN111156281A (en) * | 2020-02-13 | 2020-05-15 | 重庆三峡学院 | Multistage adjustable axial extrusion type permanent magnet magnetorheological damper |
| CN111156281B (en) * | 2020-02-13 | 2021-06-04 | 重庆三峡学院 | Multistage adjustable axial extrusion type permanent magnet magnetorheological damper |
| CN114135619A (en) * | 2021-11-13 | 2022-03-04 | 安徽工程大学 | Damping type energy dissipation device repairing device based on magnetic control principle |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181106 Termination date: 20190202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |