CN103388645A - Magneto-rheological elastomer double outlet rod single ring film damper - Google Patents
Magneto-rheological elastomer double outlet rod single ring film damper Download PDFInfo
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- CN103388645A CN103388645A CN2013103444141A CN201310344414A CN103388645A CN 103388645 A CN103388645 A CN 103388645A CN 2013103444141 A CN2013103444141 A CN 2013103444141A CN 201310344414 A CN201310344414 A CN 201310344414A CN 103388645 A CN103388645 A CN 103388645A
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- annular damping
- annular
- clutch release
- release slave
- double
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Abstract
The invention discloses a magneto-rheological elastomer double outlet rod single ring film damper. The damper comprises a working cylinder, a damping rod, two annular damping films, two annular damping sheets and a double-sided annular electromagnet, wherein the working cylinder is cylindrical; end covers are fixed to the two ends of the working cylinder; the outer circumference of the two-sided annular electromagnet is fixed to the inner wall of the working cylinder between the two end covers; at least four pairs of magnetic poles are uniformly distributed on each annular surface of the two-sided annular electromagnet; an excitation coil is wound on each magnetic pole; the two annular damping films consist of magneto-rheological elastomers; the outer circumferences of the annular damping sheets are fixed to the inner circumferences of the annular damping films; the outer circumferences of the two annular damping films are fixed to the inner wall of the working cylinder between the two-sided annular electromagnet and the two end covers in parallel respectively; the damping rod penetrates through middle holes in the two annular damping sheets and the two annular damping sheets are fixed to the middle part of the damping rod; and the two ends of the damping rod extends out of the two ends of the working cylinder through sliding bearings on the two end covers of the working cylinder.
Description
Technical field
The invention belongs to a kind of MR damper, be specifically related to the two rod monocycle film dampers of a kind of magnetic rheology elastic body.
Background technique
MR damper is a kind of intelligent vibration damping device, existing MR damper adopts piston and clutch release slave cylinder structure more, piston wherein mostly is the cylindrical that consists of magnetic conductive metal, and adjust the damping force of its output by the viscosity of magnetic flow liquid in changing between piston and clutch release slave cylinder, the MR damper that this class adopts the cylindrical piston structure is the less vibration damping demand that is difficult to be applicable to the vibration occasion of the little amplitude of high frequency in the gap between large and piston and clutch release slave cylinder because of the quality of piston.
Summary of the invention
Large and be difficult to be applicable to the deficiency of the vibration occasion vibration damping of the little amplitude of high frequency for the quality of piston in existing MR damper, the present invention proposes a kind of novel MR damper, that is: two rod monocycle film dampers of a kind of magnetic rheology elastic body, technological scheme of the present invention is as follows:
the two rod monocycle film dampers of a kind of magnetic rheology elastic body, it comprises clutch release slave cylinder, damper rod, two annular damping membranes, two annular damping fins and a Double-face ring electromagnet, clutch release slave cylinder wherein is cylindrical shape, at the two ends of clutch release slave cylinder, is fixed with end cap, and is porose at the center of two end caps, in the center hole of end cap, sliding bearing is installed, the excircle of Double-face ring electromagnet is fixed on the inwall of two clutch release slave cylinders between end cap, and the Double-face ring electromagnet equates with the spacing between two end caps, be evenly equipped with at least 4 pairs of magnetic poles on each toroidal surface of Double-face ring electromagnet, be wound with field coil on each magnetic pole, the internal diameter of Double-face ring electromagnet is greater than the diameter of damper rod and leave axially movable gap of damper rod, two annular damping membranes consist of magnetic rheology elastic body, the excircle of annular damping fin is fixed on the inner circumference of annular damping membrane, and the excircle of two annular damping membranes is fixed on respectively on the inwall of the clutch release slave cylinder between Double-face ring electromagnet and two end cap abreast, damper rod passes the mesopore of two annular damping fins and two annular damping fins is fixed on the middle part of damper rod, stretch out from the two ends of clutch release slave cylinder by the sliding bearing on two end caps of clutch release slave cylinder at the two ends of damper rod, the cylinder of clutch release slave cylinder, annular damping fin and damper rod consist of non-magnet_conductible material, two end caps of clutch release slave cylinder consist of permeability magnetic material, spacing between two end caps and Double-face ring electromagnet is greater than the thickness of annular damping fin and annular damping membrane and leave annular damping fin and the axial movable gap of annular damping membrane, be evenly equipped with at least two through holes on the toroidal surface of annular damping fin.
function of the present invention is achieved in that the top that vibration source is placed in damper rod one end, when the Double-face ring electromagnet that is positioned at the clutch release slave cylinder middle part is not switched on, electromagnetic field intensity in clutch release slave cylinder is zero, because not having the magnetic line of force to pass the annular damping membrane that consists of magnetic rheology elastic body, the annular damping membrane of this moment has lower stretching or distortion elasticity, after the energising of the Double-face ring electromagnet in clutch release slave cylinder, the end cap that the part magnetic line of force that magnetic pole on two anchor rings of Double-face ring electromagnet circle generates an electromagnetic field can pass the annular damping membrane that consists of magnetic rheology elastic body and clutch release slave cylinder two ends forms closed magnetic circuit and makes magnetic intensity enhancing in clutch release slave cylinder, make the elasticity of two annular damping membranes when stretching or be out of shape higher, therefore, the size of current that is input to the Double-face ring electromagnet by adjustment is the intensity of the electromagnetic field in the capable of regulating clutch release slave cylinder, the elasticity size of two annular damping membranes in clutch release slave cylinder is changed, make damper rod pass through two annular damping fins and drive the damping force change of two annular damping membranes when clutch release slave cylinder in-draw or distortion, thereby the damping force of the two rod monocycle film dampers of magnetic rheology elastic body of the present invention is adjusted, through hole on the annular damping fin is for the air of releasing between two annular damping fins, to improve the working sensitivity of the two rod monocycle film dampers of magnetic rheology elastic body, beneficial effect of the present invention is: because of the quality of the damping fin in the present invention and damping membrane less, so, make the present invention have reaction flexibly for the high frequency small amplitude motion, because its total quality is lower, inertia is less, and effective damping is carried out in the vibration to the little amplitude of high frequency that can be pointed.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the sectional view of a kind of structure of Double-face ring electromagnet in Fig. 1.
Fig. 3 is the plan view of Double-face ring electromagnet in Fig. 2.
Fig. 4 is the worm's eye view of Double-face ring electromagnet in Fig. 2.
Schematic diagram when Fig. 5 is work of the present invention.
Fig. 6 is the schematic diagram of the present invention when application.
Embodiment
Describe structure of the present invention in detail below in conjunction with accompanying drawing:
referring to Fig. 1 to Fig. 4, this is a kind of concrete structure of the present invention, the two rod monocycle film dampers of a kind of magnetic rheology elastic body, it comprises clutch release slave cylinder 4, damper rod 18, two annular damping membranes 3 and 9, two annular damping fins 1 and 12 and Double-face ring electromagnet 8, wherein: clutch release slave cylinder 4 is cylindrical shape, is fixed with the end cap 10 that consists of permeability magnetic material at the two ends of clutch release slave cylinder 4, and sliding bearing 17 is installed in the center hole of end cap 10, the excircle of Double-face ring electromagnet 8 is fixed on the inwall of two clutch release slave cylinders 4 between end cap 10, and Double-face ring electromagnet 8 equates with the spacing between two end cap 10, be evenly equipped with 4 pairs of magnetic poles 15 on a toroidal surface on Double-face ring electromagnet 8, be wound with field coil 22 on each magnetic pole 15, also be evenly equipped with 4 pairs of magnetic poles 14 on a toroidal surface below Double-face ring electromagnet 8, be wound with field coil 23 on each magnetic pole 14, the diameter of the endoporus 13 of Double-face ring electromagnet 8 is greater than the diameter of damper rod 18 and leave axially movable gap of damper rod 18, two annular damping membranes 3 and 9 consist of magnetic rheology elastic body, the excircle of the annular damping fin 1 that consists of non-magnet_conductible material is fixed on the inner circumference of annular damping membrane 3, and the excircle of the annular damping fin 12 that consists of non-magnet_conductible material is fixed on the inner circumference of annular damping membrane 9, the excircle of annular damping membrane 3 is fixed on the inwall of the clutch release slave cylinder between Double-face ring electromagnet 8 and end cap 10, and the excircle of annular damping membrane 9 is fixed on the inwall of the clutch release slave cylinder between Double-face ring electromagnet 8 and another end cap 10, the damper rod 18 that consists of non-magnet_conductible material passes the mesopore of two annular damping fins 1 and 12 and two annular damping fins 1 and 12 is fixed on the middle part of damper rod 18, stretch out from the two ends of clutch release slave cylinder 4 by the sliding bearing 17 on 4 two end caps 10 of clutch release slave cylinder at the two ends of damper rod 18, the cylinder 4 of clutch release slave cylinder 4 consists of non-magnet_conductible material, and be evenly equipped with two through holes 2 on the toroidal surface of annular damping fin 1, be evenly equipped with two through holes 11 on the toroidal surface of annular damping fin 12.
in conjunction with Fig. 5 and Fig. 6, the function of the two rod monocycle film dampers of magnetic rheology elastic body of the present invention is further described now: referring to Fig. 1 to Fig. 6, on Double-face ring electromagnet 8 in the two rod monocycle film dampers 20 of magnetic rheology elastic body, field coil 22 is connected with control power supply 7 with 6 by connecting line 5 respectively with 23, one end of the damper rod 18 of the two rod monocycle film dampers 20 of four magnetic rheology elastic bodies (is seen for details: Fig. 6) by sending out blue 21 four jiaos of being fixed on precision type instrument 16, the clutch release slave cylinder 4 of four two rod monocycle film dampers 20 of magnetic rheology elastic body is fixing with pedestal 25, the other end of damper rod 18 extend in the pit 19 of pedestal 25, the length that the degree of depth of pit 19 is stretched out greater than the other end of damper rod 18.
When controlling power supply 7 less than the field coil 22 on the Double-face ring electromagnet 8 in clutch release slave cylinder 4 and 23 output current, electromagnetic field intensity in clutch release slave cylinder 4 is zero, because not having the magnetic line of force to pass the annular damping membrane 3 and 9 that is formed by magnetic rheology elastic body, the annular damping membrane 3 and 9 of this moment has lower stretching or distortion elasticity, that is: the two rod monocycle film dampers 20 of the magnetic rheology elastic body of this moment have initial damping force; when controlling power supply 7 after Double-face ring electromagnet 8 output currents at clutch release slave cylinder 4 middle parts, the magnetic line of force of the electromagnetic field that the magnetic pole 14 and 15 on two toroidal surfaces of Double-face ring electromagnet 8 produces also forms closed magnetic circuit with two end caps 10 respectively with passing respectively the annular damping membrane 3 and 9 that consists of magnetic rheology elastic body, the elasticity of annular damping membrane 3 and 9 when stretching or be out of shape is uprised, therefore, control power supply 7 by adjustment and be input to the size of current of Double-face ring electromagnet 8, it is the intensity size of the electromagnetic field in capable of regulating clutch release slave cylinder 4, the elasticity size of the interior annular damping membrane 3 of clutch release slave cylinder 4 and 9 is changed, making damper rod 18 drive the damping force of annular damping membranes 3 and 9 when clutch release slave cylinder 4 in-draws or the distortion by annular damping fin 1 and 12 changes, thereby make damping force big or small controlled of the two rod monocycle film dampers 20 of magnetic rheology elastic body, therefore, can make by the size that power supply 7 output currents are controlled in adjustment the big or small adjustable of two rod monocycle film damper 20 damping forces of magnetic rheology elastic body of the present invention, the dither that pedestal 25 is produced is reduced after the damping by the two rod monocycle film dampers 20 of magnetic rheology elastic body, the vibration that the precision type instrument 16 that is placed on pedestal 25 is subject to is effectively suppressed.
Claims (4)
1. two rod monocycle film dampers of a magnetic rheology elastic body, it comprises clutch release slave cylinder, damper rod, two annular damping membranes, two annular damping fins and a Double-face ring electromagnet; It is characterized in that: described clutch release slave cylinder is cylindrical shape, at the two ends of clutch release slave cylinder, is fixed with end cap, and is porose at the center of two end caps, in the center hole of end cap, sliding bearing is installed; The excircle of described Double-face ring electromagnet is fixed on the inwall of two clutch release slave cylinders between end cap, and the Double-face ring electromagnet equates with the spacing between two end caps, be evenly equipped with at least 4 pairs of magnetic poles on each toroidal surface of Double-face ring electromagnet, be wound with field coil on each magnetic pole, the internal diameter of Double-face ring electromagnet is greater than the diameter of damper rod and leave axially movable gap of damper rod; Described two annular damping membranes consist of magnetic rheology elastic body; The excircle of described annular damping fin is fixed on the inner circumference of annular damping membrane, and the excircle of two annular damping membranes is fixed on respectively on the inwall of the clutch release slave cylinder between Double-face ring electromagnet and two end cap abreast; Described damper rod passes the mesopore of two annular damping fins and two annular damping fins is fixed on the middle part of damper rod, and stretch out from the two ends of clutch release slave cylinder by the sliding bearing on two end caps of clutch release slave cylinder at the two ends of damper rod.
2. two rod monocycle film dampers of magnetic rheology elastic body as claimed in claim 1, it is characterized in that: the cylinder of described clutch release slave cylinder, annular damping fin and damper rod consist of non-magnet_conductible material, and two end caps of clutch release slave cylinder consist of permeability magnetic material.
3. two rod monocycle film dampers of magnetic rheology elastic body as claimed in claim 1 is characterized in that: the spacing between described two end caps and Double-face ring electromagnet is greater than the thickness of annular damping fin and annular damping membrane and leave annular damping fin and the axial gap of activity of annular damping membrane.
4. the two rod monocycle film dampers of magnetic rheology elastic body as claimed in claim 1, is characterized in that: be evenly equipped with two through holes on the toroidal surface of described annular damping fin at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103444141A CN103388645A (en) | 2013-08-09 | 2013-08-09 | Magneto-rheological elastomer double outlet rod single ring film damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103444141A CN103388645A (en) | 2013-08-09 | 2013-08-09 | Magneto-rheological elastomer double outlet rod single ring film damper |
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| Publication Number | Publication Date |
|---|---|
| CN103388645A true CN103388645A (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103444141A Pending CN103388645A (en) | 2013-08-09 | 2013-08-09 | Magneto-rheological elastomer double outlet rod single ring film damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103388645A (en) |
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2013
- 2013-08-09 CN CN2013103444141A patent/CN103388645A/en active Pending
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Application publication date: 20131113 |