CN108343697A - A kind of variable damping device magnetic structure - Google Patents
A kind of variable damping device magnetic structure Download PDFInfo
- Publication number
- CN108343697A CN108343697A CN201810239194.9A CN201810239194A CN108343697A CN 108343697 A CN108343697 A CN 108343697A CN 201810239194 A CN201810239194 A CN 201810239194A CN 108343697 A CN108343697 A CN 108343697A
- Authority
- CN
- China
- Prior art keywords
- piston
- coil
- cylinder
- damping device
- variable damping
- 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.)
- Withdrawn
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3221—Constructional features of piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/06—Magnetic or electromagnetic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/04—Fluids
- F16F2224/045—Fluids magnetorheological
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
- F16F2228/066—Variable stiffness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2238/00—Type of springs or dampers
- F16F2238/04—Damper
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of variable damping device magnetic structures, including piston cylinder, piston rod is equipped in the piston cylinder, it is arranged with piston outside the piston rod, the piston is in close contact with the piston inside wall of cylinder, laterally partition is equipped in the middle part of the piston, the both sides up and down laterally separated are respectively equipped with a recessed portion, the piston is divided into upper and lower part, the top is wound with first coil, the lower part is wound with the second coil, and the first coil is connected with reverse current with the second coil, magnetorheological fluid is filled in the piston cylinder.The present invention winds multiple magnet exciting coils on piston, can increase the size of magnetic flux, and the effective length of piston also will increase, and magnetic circuit can become more uniform；When two-stage coil same direction current is with reverse current, magnetic field utilization rate highest, damping force, which has, to be obviously improved.
Description
Technical field
The present invention relates to a kind of variable damping device magnetic structures.
Background technology
MR damper can be carried out far as a kind of intelligent vibration damping device, the size of damping force by controlling power supply
The working media of journey step-less adjustment, existing MR damper is mostly magnetorheological fluid, and magnetorheological fluid is under zero magnetic field condition
Reveal the characteristic of low viscosity；And under the magnetic fields of varying strength, then different viscosity is showed, exactly magnetic is utilized in people
This performance development of rheology liquid has gone out various MR dampers, but since the sedimentation of suspended phase in magnetorheological fluid can influence device
Part performance, for this purpose, people have developed another magnetorheological materials after magnetorheological fluid again：Magneto-rheological grease, due to magnetorheological
The special skeleton structure of fat and stability is very high, will not occur suspended phase sedimentation and influence device performance.Work as magnetorheological damping
When the magnetic circuit of device is single-stage coil, by Theory of Electromagnetic Field it is found that increasing magnetic flux total in magnetic circuit, to increase the big of exciting current
It is small.In given exciting current and magnetic resistance, the number of turns for increasing coil can only be used, the increase of piston window I=l can be caused in this way,
Piston overall structure is caused to increase.
Invention content
The present invention devises a kind of variable damping device magnetic structure in view of the deficiencies of the prior art.
The present invention is in order to achieve the above object, using following scheme：A kind of variable damping device magnetic structure, including piston cylinder, institute
It states and is equipped with piston rod in piston cylinder, piston is arranged with outside the piston rod, the piston is in close contact with the piston inside wall of cylinder,
Laterally partition is equipped in the middle part of the piston, the both sides up and down laterally separated are respectively equipped with a recessed portion, by the piston
It is divided into upper and lower part, the top is wound with first coil, and the lower part is wound with the second coil, the first coil and the
Two coil is connected with reverse current, and magnetorheological fluid is filled in the piston cylinder.
Further, the piston cylinder and piston rod are made of un-conducted magnetic material.
Further, the upper edge of the piston is equipped with the first collar flange, and the is equipped at the lower edge of the piston
Two collar flanges, first collar flange and the second collar flange are fitted close with the inner wall of the piston cylinder.
Further, first collar flange and the second collar flange are made of wear-resistant material.
Compared to the prior art the present invention, has the following advantages that and advantageous effect：Multiple magnet exciting coils are wound on piston,
The size of magnetic flux can be increased, the effective length of piston also will increase, and magnetic circuit can become more uniform；Two-stage coil is electric in the same direction
When stream is with reverse current, magnetic field utilization rate highest, damping force, which has, to be obviously improved.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Specific implementation mode
In conjunction with Fig. 1, a kind of variable damping device magnetic structure, including piston cylinder 1, the piston cylinder 1 is interior to be equipped with piston rod 2, institute
It states and is arranged with piston 3 outside piston rod 2, the piston 3 is in close contact with 1 inner wall of the piston cylinder, and 3 middle part of the piston is equipped with cross
To partition 4, the both sides up and down of the laterally partition 4 are respectively equipped with a recessed portion, and the piston 3 is divided for upper and lower part,
The top is wound with first coil 51, and the lower part is wound with the second coil 52, the first coil 51 and the second coil 52
It is connected with reverse current, magnetorheological fluid 6 is filled in the piston cylinder 1.
Further, the piston cylinder 1 and piston rod 2 are made of un-conducted magnetic material.
Further, the upper edge of the piston 3 is equipped with the first collar flange 31, is set at the lower edge of the piston 3
There are the second collar flange 32, first collar flange, 31 and second collar flange 32 close with the inner wall of the piston cylinder 1
Cooperation.
Further, first collar flange, 31 and second collar flange 32 is made of wear-resistant material.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of variable damping device magnetic structure, including piston cylinder, the piston cylinder is interior to be equipped with piston rod, is arranged outside the piston rod
There are piston, the piston to be in close contact with the piston inside wall of cylinder, it is characterised in that：Laterally partition is equipped in the middle part of the piston,
The both sides up and down laterally separated are respectively equipped with a recessed portion, the piston are divided into upper and lower part, the top twines
It is wound with first coil, the lower part is wound with the second coil, and the first coil is connected with reverse current with the second coil, described
Magnetorheological fluid is filled in piston cylinder.
2. a kind of variable damping device magnetic structure as described in claim 1, it is characterised in that：The piston cylinder and piston rod be not by
Permeability magnetic material is made.
3. a kind of variable damping device magnetic structure as described in claim 1, it is characterised in that：The upper edge of the piston is equipped with
First collar flange, is equipped with the second collar flange at the lower edge of the piston, first collar flange and second cyclic annular convex
Edge is fitted close with the inner wall of the piston cylinder.
4. a kind of variable damping device magnetic structure as claimed in claim 3, it is characterised in that：First collar flange and second
Collar flange is made of wear-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810239194.9A CN108343697A (en) | 2018-03-22 | 2018-03-22 | A kind of variable damping device magnetic structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810239194.9A CN108343697A (en) | 2018-03-22 | 2018-03-22 | A kind of variable damping device magnetic structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108343697A true CN108343697A (en) | 2018-07-31 |
Family
ID=62957314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810239194.9A Withdrawn CN108343697A (en) | 2018-03-22 | 2018-03-22 | A kind of variable damping device magnetic structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108343697A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372934A (en) * | 2018-11-18 | 2019-02-22 | 刘山平 | A kind of automobile-use MR vibration damper |
-
2018
- 2018-03-22 CN CN201810239194.9A patent/CN108343697A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372934A (en) * | 2018-11-18 | 2019-02-22 | 刘山平 | A kind of automobile-use MR vibration damper |
| CN109372934B (en) * | 2018-11-18 | 2020-07-31 | 浙江煜焰工业设计有限公司 | Magnetorheological damper for motor vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180731 |