CN101737448A - Sliding-barrel magneto-rheological damper - Google Patents
Sliding-barrel magneto-rheological damper Download PDFInfo
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- CN101737448A CN101737448A CN200910251077A CN200910251077A CN101737448A CN 101737448 A CN101737448 A CN 101737448A CN 200910251077 A CN200910251077 A CN 200910251077A CN 200910251077 A CN200910251077 A CN 200910251077A CN 101737448 A CN101737448 A CN 101737448A
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- urceolus
- barrel
- magneto
- inner core
- layer
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Abstract
The invention provides a sliding-barrel magneto-rheological damper. The damper consists of an inner barrel, an outer barrel and a magnetic field generator, wherein the outer barrel can have a single-layer or double-layer structure; magneto-rheological liquid is filled in a space between the inner barrel and the outer barrel and in a space between an inner layer and an outer layer of the outer barrel; and the middle of the inner barrel is provided with at least one projecting damping ring. The magnetic field intensity of the magnetic field generator can be adjusted to change the viscosity of the magneto-rheological liquid between the inner barrel and the outer barrel. When the inner barrel and the outer barrel slide relatively, the damping force of the inner barrel damping ring can change when the damping ring extrudes the magneto-rheological liquid, so that the controllability of the damping force of the sliding-barrel magneto-rheological damper is realized.
Description
Technical field
The present invention relates to MR damper, be specifically related to a kind of sliding-barrel magneto-rheological damper.
Background technique
The electromagnetic coil of pot type piston formula MR damper is immersed in the magnetic flow liquid, when piston magneto-rheological damper is in running order, the electromagnetic coil of damper can be subjected to washing away repeatedly of magnetic flow liquid, thisly washes away that the electromagnetic coil that might make damper breaks down and working life of influencing MR damper.
Summary of the invention
The objective of the invention is to propose a kind of sliding-barrel magneto-rheological damper, avoid magnetic field generator to contact, improve the working life of MR damper with magnetic flow liquid.
Technological scheme of the present invention is as follows:
The present invention is a kind of sliding-barrel magneto-rheological damper, and this damper is to be made of inner core, urceolus and magnetic field generator.The two ends of inner core stretch out in the urceolus two ends, and seal by sealing configuration at the urceolus two ends.Urceolus can be individual layer or double layer construction, has been full of magnetic flow liquid between inside and outside tube and in the space between the inside and outside layer of urceolus; Magnetic field generator can be installed on the urceolus in the inner core or be installed in simultaneously in the inner core and urceolus on.The outer peripheral surface at inner core middle part is provided with the damping ring of at least one protrusion, if urceolus is a single layer structure, the external diameter of this damping ring is less than the internal diameter of urceolus and leave appropriate gap, if urceolus is a double layer construction, the external diameter of this damping ring is less than the internal diameter of urceolus internal layer and leave appropriate gap, and the through hole in space in uniform connection internal and external layer space and the internal layer is arranged on the circumference at the two ends of the inner layer wall of urceolus.
When inner core and urceolus generation slide relative, if urceolus is single layer structure, the magnetic flow liquid between then inside and outside tube under the extruding of inner core damping ring, by the gap between inner core damping ring external diameter and the urceolus internal diameter from an effluent of damping ring to opposite side; If urceolus is a double layer construction, magnetic flow liquid between then inside and outside tube is under the extruding of inner core damping ring, part magnetic flow liquid by the gap between inner core damping ring external diameter and the urceolus internal layer internal diameter from an effluent of damping ring to opposite side, another part magnetic flow liquid enters the inside and outside interlayer of urceolus from the through hole of urceolus internal layer one end, through hole from the urceolus internal layer the other end flows out the opposite side that enters into the inner core damping ring then, when inner/outer tube reciprocatingly slides, this part magnetic flow liquid can back and forth flow in the internal and external layer of urceolus under the extruding of inner core damping ring.The magnetic intensity of regulating magnetic field generator can change the viscosity of magnetic flow liquid between inner/outer tube, has also just changed the damping force of inner core damping ring extruding magnetic flow liquid when between inner/outer tube slide relative taking place, thereby realizes the controllability of sliding-barrel magneto-rheological damper damping force.
Structure, shape, size, quantity and the inner core damping ring external diameter that sliding-barrel magneto-rheological damper of the present invention can also be by changing the inner core damping ring and the gap of urceolus (internal layer) internal diameter change the inherent damping parameter of this damper.
Compare the present invention with pot type piston formula MR damper following advantage arranged:
1, can avoid contacting of magnetic flow liquid and electromagnetic coil fully, help to improve the working life of MR damper.
2, when the damping ring Thickness Design hour, the consumption of magnetic flow liquid is less.
Description of drawings
Fig. 1 be urceolus of the present invention be bilayer and magnetic field generator be installed in the inner core and urceolus on a kind of structural representation of embodiment.
Fig. 2 is the sectional drawing of Fig. 1.
Fig. 3 is that urceolus of the present invention is the structural representation that individual layer and magnetic field generator are installed in a kind of embodiment in the inner core.
Fig. 4 is the sectional drawing of Fig. 3.
Embodiment
Describe structure of the present invention in detail below in conjunction with accompanying drawing:
Referring to Fig. 1 and Fig. 2, first magnetic field generator 1 of this sliding-barrel magneto-rheological damper is installed on the urceolus 2, urceolus 2 is a double layer construction, the skin of urceolus 2 is made of non-magnet_conductible material, the internal layer 4 of urceolus 2 is made of high permeability material, being full of between the internal and external layer has magnetic flow liquid 6, is evenly equipped with through hole 5 on the two terminal circle perisporium of internal layer 4, is communicated with the internal and external layer space and the interior space of internal layer of urceolus 2.Inner core 7 is contained in the urceolus, and inner core 7 is made of non-magnet_conductible material, and the two ends of inner core 7 stretch out in urceolus 2 two ends, and are provided with seal ring 9 and bearing 10 at the two ends of urceolus 2.One damping ring 3 that protrudes is arranged on the outer peripheral surface at inner core 7 middle parts, and the external diameter of damping ring 3 leaves the gap that magnetic flow liquid passes through less than the internal diameter of urceolus 2 between its periphery and outer tube inner wall, also is full of magnetic flow liquid 6 between inside and outside tube.Second magnetic field generator 8 is installed in the inner core 7.First magnetic field generator 1 links to each other with control power supply 11 by guide line with second magnetic field generator 8.
Referring to Fig. 3 and Fig. 4, different with a last example is that what the urceolus of this sliding-barrel magneto-rheological damper adopted is single layer structure, magnetic field generator 8 is installed in the inner core 7, be full of magnetic flow liquid 6 between inside and outside tube, urceolus 2 is made of high permeability material, and inner core 7 is made of non-magnet_conductible material.
Claims (3)
1. a sliding-barrel magneto-rheological damper comprises inner core, urceolus and magnetic field generator, it is characterized in that, the two ends of described inner core stretch out in the urceolus two ends, and seals by sealing configuration at the urceolus two ends; Be full of magnetic flow liquid in the space between inner core and urceolus; The middle part outer peripheral surface of inner core is provided with at least one damping ring, and the external diameter of described damping ring leaves the gap that magnetic flow liquid passes through less than the urceolus internal diameter between its periphery and outer tube inner wall; Described magnetic field generator is installed on the excircle of urceolus, or is installed in the inner core, or is installed on the excircle of urceolus simultaneously and in the inner core.
2. sliding-barrel magneto-rheological damper as claimed in claim 1 is characterized in that, described urceolus individual layer or double-layer structural; When urceolus is double-layer structural, also is full of magnetic flow liquid between the internal and external layer, and the through hole in space in uniform connection internal and external layer space and the internal layer is arranged on the circumference at the two ends of the inner layer wall of urceolus.
3. sliding-barrel magneto-rheological damper as claimed in claim 1 is characterized in that, magnetic field generator can be made of electromagnet or permanent magnet or electromagnet and permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910251077A CN101737448A (en) | 2009-12-29 | 2009-12-29 | Sliding-barrel magneto-rheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910251077A CN101737448A (en) | 2009-12-29 | 2009-12-29 | Sliding-barrel magneto-rheological damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101737448A true CN101737448A (en) | 2010-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910251077A Pending CN101737448A (en) | 2009-12-29 | 2009-12-29 | Sliding-barrel magneto-rheological damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN101737448A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032510A (en) * | 2012-12-12 | 2013-04-10 | 重庆大学 | Tension type magneto-rheological buffer, |
| CN104196946A (en) * | 2014-08-19 | 2014-12-10 | 谭晓婧 | Double-outlet-rod multi-built-in-electromagnet magneto-rheological damper |
| CN110173540A (en) * | 2019-05-15 | 2019-08-27 | 嘉兴学院 | The disc type MR damper of antitorque punching |
-
2009
- 2009-12-29 CN CN200910251077A patent/CN101737448A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032510A (en) * | 2012-12-12 | 2013-04-10 | 重庆大学 | Tension type magneto-rheological buffer, |
| CN103032510B (en) * | 2012-12-12 | 2016-06-01 | 重庆大学 | Stretching type magnetic current becomes snubber |
| CN104196946A (en) * | 2014-08-19 | 2014-12-10 | 谭晓婧 | Double-outlet-rod multi-built-in-electromagnet magneto-rheological damper |
| CN104196946B (en) * | 2014-08-19 | 2015-12-02 | 谭晓婧 | The ferromagnetic rheological damper of the many built-in electromagnetics of two rod |
| CN110173540A (en) * | 2019-05-15 | 2019-08-27 | 嘉兴学院 | The disc type MR damper of antitorque punching |
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Application publication date: 20100616 |