CN201368172Y - Magneto rheological fluid damper - Google Patents
Magneto rheological fluid damper Download PDFInfo
- Publication number
- CN201368172Y CN201368172Y CNU2009201159683U CN200920115968U CN201368172Y CN 201368172 Y CN201368172 Y CN 201368172Y CN U2009201159683 U CNU2009201159683 U CN U2009201159683U CN 200920115968 U CN200920115968 U CN 200920115968U CN 201368172 Y CN201368172 Y CN 201368172Y
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- CN
- China
- Prior art keywords
- main shaft
- damper
- water tank
- cooling water
- rheological fluid
- 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
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Abstract
The utility model discloses a magneto rheological fluid damper, comprising a main shaft and a shell which is coaxially sealed and sheathed on the main shaft, a damping disc is fixedly arranged on the main shaft, an inner cavity is arranged in the shell, the damping disc is arranged in the inner cavity, a clearance for filling magneto rheological fluid is arranged between the damping disc and the inner cavity, and a magnet exciting coil is arranged in the inner cavity; the magneto rheological fluid damper has the characteristics that the shell is provided with a cooling water tank and an end cover used for closing the cooling water tank, and a water inlet and a water outlet which are communicated with the cooling water tank are arranged on the end cover; the magneto rheological fluid damper has the advantages that as the shell is provided with the cooling water tank, and the water inlet and the water outlet which are communicated with the cooling water tank are arranged on the end cover for closing the cooling water tank, by utilizing the continuous circulation of cold water, the temperature of the shell can be effectively reduced, and the temperature of the magnet exciting coil is reduced, and temperature rise is controlled, and the effect of the temperature rise on the magneto rheological fluid is greatly reduced at the same time, so as to lead the rheological properties to be good, ensure the working stability of the damper and prolong the service life of the damper.
Description
Technical field
The utility model relates to a kind of damper, especially relates to a kind of magnetic rheological liquid damper.
Background technique
Magnetic flow liquid is that a kind of material jumpy takes place rheological properties under the action of a magnetic field adding, it shows as the better fluid state that flows under no the action of a magnetic field, yet under strong magnetic field action, can in the short time (Millisecond), apparent viscosity increase by two more than the order of magnitude, and present the mechanical property of similar solid, its intensity is characterized by shear yield stress, and viscosity change is continuous, reversible (promptly in case after removing magnetic field, becoming again can flowing liquid).And based on the rotary damper of magnetic flow liquid, can under the control of field current, export required damping torque, have control simple, do not have that machinery impacts, mechanical wear is little and low noise advantages, is widely used in mechanically operated coupling, clutch/brake and tension control system etc.
Yet generally speaking, the resistance of metallic conductor increases with the rising of temperature.When the field coil temperature raise, the coil internal resistance increased, and power consumption increases, thereby causes temperature rise further to raise, and forms a vicious circle; And coil internal resistance increase also will cause field current to reduce, and damping gap location magnetic intensity reduces, and the damping torque of output reduces, the bad stability of damper; In addition, the normal working temperature of magnetic flow liquid generally is no more than 130 ℃, and the too high meeting of temperature makes the solid-liquid structural damage of magnetic flow liquid, influences its rheological properties, thereby influences the proper functioning of damper.
Summary of the invention
Technical problem to be solved in the utility model provides and a kind ofly can guarantee its working stability and the magnetic rheological liquid damper that increases the service life.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of magnetic rheological liquid damper, comprise that main shaft and co-axial seal are set in the housing on the described main shaft, be set with damping tray on the described main shaft, be provided with inner chamber in the described housing, described damping tray is arranged in the described inner chamber, be provided with the gap that is used for the can magnetic flow liquid between described damping tray and the described inner chamber, be provided with field coil in the described inner chamber, described housing is provided with bosh and is used to seal the end cap of described bosh, and described end cap is provided with water intake and the water outlet that communicates with described bosh.
Be provided with in the described inner chamber every the magnetic copper band, describedly be arranged between described field coil and the described damping tray, vertically pass magnetic flow liquid to prevent the magnetic line of force that field coil produces every the magnetic copper band.
Described housing is set on the described main shaft by coaxial bearing.
Described damping tray is fixedlyed connected with described main shaft by flat key.
Compared with prior art, the utility model has the advantages that because housing is provided with bosh, and the end cap that is used to seal bosh is provided with water intake and the water outlet that communicates with bosh, utilize the continuous circulation of cold water, can reduce the temperature of housing effectively, thereby reduce the temperature of field coil, control its temperature rise, also greatly reduce simultaneously the influence of temperature rise to magnetic flow liquid, make its rheological properties good, guarantee the working stability of damper, and prolonged the working life of damper.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in the figure, a kind of magnetic rheological liquid damper, comprise main shaft 1 and housing 2, housing 2 is set on the main shaft 1 by bearing 3 co-axial seals, be fixedly connected with damping tray 5 by flat key 4 on the main shaft 1, be provided with inner chamber in the housing 2, damping tray 5 is arranged in the inner chamber, be provided with the gap 6 that is used for the can magnetic flow liquid between damping tray 5 and the inner chamber, be provided with field coil 7 in the inner chamber and every magnetic copper band 8, be arranged between field coil 7 and the damping tray 5 every magnetic copper band 8, housing 2 is provided with bosh 21 and is used to seal the end cap 9 of bosh 21, and end cap 9 is provided with water intake 91 and the water outlet 92 that communicates with bosh 21.
Claims (4)
1, a kind of magnetic rheological liquid damper, comprise that main shaft and co-axial seal are set in the housing on the described main shaft, be set with damping tray on the described main shaft, be provided with inner chamber in the described housing, described damping tray is arranged in the described inner chamber, be provided with the gap that is used for the can magnetic flow liquid between described damping tray and the described inner chamber, be provided with field coil in the described inner chamber, it is characterized in that described housing is provided with bosh and the end cap that is used to seal described bosh, described end cap is provided with water intake and the water outlet that communicates with described bosh.
2, a kind of magnetic rheological liquid damper as claimed in claim 1 is characterized in that being provided with in the described inner chamber every the magnetic copper band, describedly is arranged between described field coil and the described damping tray every the magnetic copper band.
3, a kind of magnetic rheological liquid damper as claimed in claim 1 is characterized in that described housing is set on the described main shaft by coaxial bearing.
4, a kind of magnetic rheological liquid damper as claimed in claim 1 is characterized in that described damping tray fixedlys connected with described main shaft by flat key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201159683U CN201368172Y (en) | 2009-03-19 | 2009-03-19 | Magneto rheological fluid damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201159683U CN201368172Y (en) | 2009-03-19 | 2009-03-19 | Magneto rheological fluid damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201368172Y true CN201368172Y (en) | 2009-12-23 |
Family
ID=41487065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201159683U Expired - Fee Related CN201368172Y (en) | 2009-03-19 | 2009-03-19 | Magneto rheological fluid damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201368172Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862990A (en) * | 2010-06-08 | 2010-10-20 | 宁波大学 | Polishing device of non-spherical surface optical parts |
| CN102022472A (en) * | 2010-12-23 | 2011-04-20 | 上海应用技术学院 | Rotary foam metal magnetorheological fluid damper |
| CN102128770A (en) * | 2010-12-22 | 2011-07-20 | 宁波大学 | Device for testing rheological properties of magnetorheological fluid |
| CN103057427A (en) * | 2013-01-08 | 2013-04-24 | 清华大学 | Magneto-rheological hydraulic brake executing device for electric vehicles |
| CN103213035A (en) * | 2013-03-18 | 2013-07-24 | 宁波大学 | Magnetorheological fluid differential damping moment controller |
| CN104074028A (en) * | 2013-03-27 | 2014-10-01 | 海尔集团公司 | Washing machine with magneto rheological fluid clutch |
| CN104074025A (en) * | 2013-03-27 | 2014-10-01 | 海尔集团公司 | Washing method of washing machine |
| CN107035807A (en) * | 2016-12-16 | 2017-08-11 | 中国科学院沈阳自动化研究所 | A kind of rotary magneto-rheological damper |
| CN110149039A (en) * | 2019-05-15 | 2019-08-20 | 嘉兴学院 | A kind of hybrid magnetorheological fluid-permanent magnet shaft coupling |
| CN112240368A (en) * | 2019-07-19 | 2021-01-19 | 广东美的白色家电技术创新中心有限公司 | Vibration reduction structure and electrical equipment |
-
2009
- 2009-03-19 CN CNU2009201159683U patent/CN201368172Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862990B (en) * | 2010-06-08 | 2012-09-05 | 宁波大学 | Polishing device of non-spherical surface optical parts |
| CN101862990A (en) * | 2010-06-08 | 2010-10-20 | 宁波大学 | Polishing device of non-spherical surface optical parts |
| CN102128770B (en) * | 2010-12-22 | 2013-07-31 | 宁波大学 | Device for testing rheological properties of magnetorheological fluid |
| CN102128770A (en) * | 2010-12-22 | 2011-07-20 | 宁波大学 | Device for testing rheological properties of magnetorheological fluid |
| CN102022472A (en) * | 2010-12-23 | 2011-04-20 | 上海应用技术学院 | Rotary foam metal magnetorheological fluid damper |
| CN103057427A (en) * | 2013-01-08 | 2013-04-24 | 清华大学 | Magneto-rheological hydraulic brake executing device for electric vehicles |
| CN103213035A (en) * | 2013-03-18 | 2013-07-24 | 宁波大学 | Magnetorheological fluid differential damping moment controller |
| CN103213035B (en) * | 2013-03-18 | 2015-08-26 | 宁波大学 | A kind of magnetic flow liquid differential damping moment control device |
| CN104074028A (en) * | 2013-03-27 | 2014-10-01 | 海尔集团公司 | Washing machine with magneto rheological fluid clutch |
| CN104074025A (en) * | 2013-03-27 | 2014-10-01 | 海尔集团公司 | Washing method of washing machine |
| CN104074025B (en) * | 2013-03-27 | 2017-10-24 | 青岛海尔洗衣机有限公司 | A kind of washing methods of washing machine |
| CN104074028B (en) * | 2013-03-27 | 2017-12-29 | 青岛海尔洗衣机有限公司 | A kind of washing machine that clutch with magnetic rheologic liquid is set |
| CN107035807A (en) * | 2016-12-16 | 2017-08-11 | 中国科学院沈阳自动化研究所 | A kind of rotary magneto-rheological damper |
| CN110149039A (en) * | 2019-05-15 | 2019-08-20 | 嘉兴学院 | A kind of hybrid magnetorheological fluid-permanent magnet shaft coupling |
| CN112240368A (en) * | 2019-07-19 | 2021-01-19 | 广东美的白色家电技术创新中心有限公司 | Vibration reduction structure and electrical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20120319 |