CN102392872B - Extrusion flow type single-output rod magneto-rheological damper - Google Patents
Extrusion flow type single-output rod magneto-rheological damper Download PDFInfo
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- CN102392872B CN102392872B CN 201110394671 CN201110394671A CN102392872B CN 102392872 B CN102392872 B CN 102392872B CN 201110394671 CN201110394671 CN 201110394671 CN 201110394671 A CN201110394671 A CN 201110394671A CN 102392872 B CN102392872 B CN 102392872B
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- slave cylinder
- clutch release
- release slave
- damping
- annular damp
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Abstract
The invention discloses an extrusion flow type single-output rod magneto-rheological damper, which comprises: two annular damping tubes, a damping rod, a roller bracket, two damping rollers, two sets of electromagnets and a working cylinder, wherein the cross section of the inner cavity of the working cylinder prepared by magnetic material is of rectangle, baffle plates are fixed at both ends of the working cylinder, and two annular damping tubes prepared by non-magnetic elastic material are full of magneto-rheological fluid; the roller bracket prepared by non-magnetic material is of T shape, the two damping rollers are respectively fixed to two ends of the roller bracket, one end of the damping rod is fixed to one end of the roller bracket, and the other end of the damping rod protrudes from the working cylinder through a sliding bearing on the baffle plate at one end of the working cylinder; and two sets of electromagnets are respectively fixed to the outer circumference of the two annular damping tubes outside the two short sides of the working cylinder, the damping roller is constituted by embedding one magnetic material circular ring, which is provided with at least 4 pairs of magnetic poles at the outer circumference, at the outer circumference of the roller formed by non-magnetic metal material.
Description
Technical field
The invention belongs to a kind of damper, be specifically related to a kind of extrusion flow type single-output rod magneto-rheological damper.
Background technique
Existing MR damper mainly adopts clutch release slave cylinder, the structure of piston and piston rod, in clutch release slave cylinder, also be full of simultaneously magnetic flow liquid, this class MR damper is to drive the motion of piston in clutch release slave cylinder by piston rod to produce damping force, magnetic flow liquid in clutch release slave cylinder is taken out of outside the clutch release slave cylinder with piston rod, normally between clutch release slave cylinder and piston rod, adopt seal arrangement to solve the motive sealing problem of piston rod, because magnetic flow liquid is the mixture that contains the attritive powder of Multiple components at mineral oil, therefore, it is very difficult that it is carried out motive sealing, in case the leakage of magnetic flow liquid occurs, light then make the hydraulic performance decline of MR damper, heavy then make MR damper total failure, therefore, the motive sealing problem of piston rod has become industry and has improved the MR damper major obstacle in working life.
Summary of the invention
In the deficiency aspect the piston rod motive sealing, the present invention proposes brand-new MR damper, that is: a kind of extrusion flow type single-output rod magneto-rheological damper for existing MR damper.
Technological scheme of the present invention is as follows:
A kind of extrusion flow type single-output rod magneto-rheological damper, it comprises: two annular damp tubes, damper rod, rolling wheel support, two damping rollers, two groups of electromagnet, clutch release slave cylinder; The cross section of the inner chamber of the clutch release slave cylinder that is made of permeability magnetic material is rectangular, two ends at clutch release slave cylinder all are fixed with plate washer, and the middle part of one of them plate washer is porose, are fixed with sliding bearing in the hole, there is through hole at two ends at two minor faces of clutch release slave cylinder, and the aperture of through hole is greater than the external diameter of annular damp tube; Two annular damp tubes are to be made of magnetic conduction macromolecular material not, have been full of magnetic flow liquid in two annular damp tubes, and two annular damp tubes pass respectively the through hole at two minor face two ends of clutch release slave cylinder and are fixed on the inside and outside two sides of clutch release slave cylinder minor face; The damping roller is to fix a magnetic material annulus by the excircle of the cylindrical body roller that consists of at non-magnet_conductible material to consist of, and be filled with at least 4 pairs of magnetic poles at the circumference of magnetic material annulus, and the thickness of damping roller is greater than the external diameter of annular damp tube; The rolling wheel support that is made of non-magnet_conductible material is T shape, and two damping rollers are separately fixed at the two ends of rolling wheel support; One end of damper rod and an end of rolling wheel support are fixed, and the other end of damper rod stretches out in clutch release slave cylinder by the sliding bearing on the clutch release slave cylinder one end plate washer; Two groups of electromagnet are separately fixed on the excircle of two annular damp tubes outside two minor faces of clutch release slave cylinder.The disc that is fixed on two damping rollers at rolling wheel support two ends is parallel to each other, and the diameter of two damping rollers is all on the same straight line, spacing sum between the diameter of two damping rollers and two the damping rollers is poor greater than two times of the spacing of two minor faces in the clutch release slave cylinder and annular damp tube external diameters, and the spacing sum between the diameter of two damping rollers and two the damping rollers is poor less than four times of the spacing of two minor faces in the clutch release slave cylinder and annular damp tube pipe thicknesses.
Function of the present invention is achieved in that because poor greater than two times of the spacing of two minor faces in the clutch release slave cylinder and annular damp tube external diameters of two damping roller diameters and two damping roller spacing sums, two damping roller diameters and two damping roller spacing sums are poor less than four times of the spacing of two minor faces in the clutch release slave cylinder and annular damp tube pipe thicknesses, so, two annular damp tubes that two minor faces in clutch release slave cylinder are on two damping roller diameters will be flattened by two damping rollers, so, when damper rod drives when being pressed in two damping rollers on the annular damp tube and moving in clutch release slave cylinder by rolling wheel support, the damping roller will roll and roll the magnetic flow liquid in the annular damp tube, simultaneously, because the excircle at the damping roller is distributed with at least 4 pairs of magnetic poles, and clutch release slave cylinder is to be made of permeability magnetic material, so, between the magnetic pole of damping roller excircle and clutch release slave cylinder minor face, just formed stronger closed magnetic field, make the magnetic flow liquid that is in the annular damp tube that has been crushed between damping roller and the clutch release slave cylinder minor face between damping roller and clutch release slave cylinder minor face under the effect of high magnetic fields and viscosity is very high, make the magnetic flow liquid that is in the damping roller direction of advance pressed on ring shape damp tube be subject to the obstruction of the magnetic flow liquid that viscosity is very high in damping roller and the clutch release slave cylinder minor face gap and be difficult to by the gap reverse flow in annular damp tube between damping roller and the clutch release slave cylinder minor face, make be in the interior magnetic flow liquid of damping roller direction of advance pressed on ring shape damp tube can only be mobile towards the direction that the damping roller advances under the rolling compaction of damping roller; Because two annular damp tubes are made of magnetic conduction macromolecular material not, so, rolled by the damping roller and local two annular damp tubes that have been crushed will self elasticity and pipe in rapid reinstatement under the extruding of magnetic flow liquid.
So, when damper rod drives the damping roller be pressed on the annular damp tube make reciprocating rolling in clutch release slave cylinder by rolling wheel support, the magnetic flow liquid of annular in the damp tube will the rolling of the reciprocating rolling of damping roller lower in annular damp tube, do back and forth mobile, when the electromagnet no electric circuit on the annular damp tube excircle that is fixed on two minor face outsides of clutch release slave cylinder, the viscosity that cause is in the magnetic flow liquid in the interior annular damp tube of electromagnet is lower, the damping force that is subject to when making magnetic flow liquid do reciprocal flowing in annular damp tube is less, thereby makes damper rod be subject to less damping force; After the electromagnet energising on the excircle of the annular damp tube that is fixed on two minor face outsides of clutch release slave cylinder, make the viscosity of the magnetic flow liquid in the annular damp tube that is in the electromagnet higher, the damping force that magnetic flow liquid is subject to when annular damp tube is done reciprocal flowing is larger, thereby makes damper rod be subject to larger damping force; Enter size of current in the electromagnet by adjustment, i.e. the size of damping force during capable of regulating damper rod to-and-fro motion is adjusted a kind of damping force of extrusion flow type single-output rod magneto-rheological damper.
Compare with existing MR damper, " a kind of extrusion flow type single-output rod magneto-rheological damper " of the present invention is sealed in the annular damp tube because of its working medium magnetic flow liquid, and the present invention's magnetic flow liquid when work just flows in annular damp tube and does not have the motive sealing problem, so, " a kind of extrusion flow type single-output rod magneto-rheological damper " of the present invention but the service behaviour stable for extended periods of time and be improved working life.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the local enlarged diagram of Fig. 1.
Fig. 4 is work schematic representation of the present invention.
Embodiment
Describe structure of the present invention in detail below in conjunction with accompanying drawing:
Referring to Fig. 1, Fig. 2 and Fig. 3, this is a kind of concrete structure of the present invention, a kind of extrusion flow type single-output rod magneto-rheological damper, it comprises: annular damp tube 3 and annular damp tube 22, damper rod 10, rolling wheel support 26, damping roller 28 and damping roller 29, electromagnet 4 and electromagnet 21, clutch release slave cylinder 27; The cross section of clutch release slave cylinder 27 inner chambers that are made of permeability magnetic material is rectangular (seeing Fig. 2 for details), be fixed with plate washer 1 and plate washer 8 at the two ends of clutch release slave cylinder 27, middle part at plate washer 8 is porose, in the hole, be fixed with sliding bearing 9, have the two ends of through hole 2 and through hole 7, minor face 20 that through hole 24 and through hole 19 are arranged at the two ends of clutch release slave cylinder 27 minor faces 5, the aperture of through hole 2, through hole 7, through hole 24 and through hole 19 is greater than the external diameter of annular damp tube 3 and annular damp tube 22; Annular damp tube 3 and annular damp tube 22 are to be made of magnetic conduction macromolecular material not, be full of in annular damp tube 3 in magnetic flow liquid 6, the annular damp tube 22 and be full of magnetic flow liquid 23, annular damp tube 3 passes the through hole 2 and 7 and be fixed on the inside and outside two sides of clutch release slave cylinder 27 minor faces 5 at clutch release slave cylinder 27 minor faces 5 two ends; Annular damp tube 22 pass clutch release slave cylinder 27 minor face two ends 20 on through hole 24 and 19 and be fixed on the inside and outside two sides of clutch release slave cylinder 27 minor faces 20; The rolling wheel support 26 that is made of non-magnet_conductible material is T shape; Damping roller 28 is to fix one by the excircle of the cylindrical body roller 11 that consists of at non-magnet_conductible material to be filled with the magnetic material annulus 14 of at least 4 pairs of magnetic poles and to consist of at excircle, damping roller 29 is to fix one by the excircle of the cylindrical body roller 16 that consists of at non-magnet_conductible material to be filled with the magnetic material annulus 17 of at least 4 pairs of magnetic poles and to consist of at excircle, and the thickness of damping roller 28 and damping roller 29 is greater than the external diameter of annular damp tube 3 and 22; Damping roller 28 and damping roller 29 are separately fixed at the two ends (seeing Fig. 3 for details) of rolling wheel support 26 by central shaft 13 and central shaft 15, and the disc of damping roller 28 and damping roller 29 is parallel to each other, and the diameter of damping roller 28 and damping roller 29 is all on same straight line A; The spacing sum of the diameter of damping roller 28 and damping roller 29 and damping roller 28 and damping roller 29 is greater than spacing and annular damp tube 3(or the annular damp tube 22 of clutch release slave cylinder 27 inner short-sides 5 and minor face 20) two times of external diameters poor, the spacing sum of the diameter of damping roller 28 and damping roller 29 and damping roller 28 and damping roller 29 is less than spacing and annular damp tube 3(or the annular damp tube 22 of clutch release slave cylinder 27 inner short-sides 5 and minor face 20) four times of pipe thicknesses poor; One end of damper rod 10 and an end of rolling wheel support 26 are fixed, and the other end of damper rod 10 stretches out in clutch release slave cylinder 27 by the sliding bearing 9 on the clutch release slave cylinder 27 1 end plate washers 8; Electromagnet 4 is fixed on the excircle of the annular damp tube 3 outside clutch release slave cylinder 27 minor faces 5, and electromagnet 21 is fixed on the excircle of the annular damp tube 22 outside clutch release slave cylinder 27 minor faces 20.
Now in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are further described a kind of extrusion flow type single-output rod magneto-rheological damper of the present invention: to drive the damping roller 28 that is pressed on annular damp tube 3 and the annular damp tube 22 and damping roller 29 by rolling wheel support 26 interior during to left movement at clutch release slave cylinder 27 when damper rod 10, damping roller 28 and damping roller 29 will roll and roll magnetic flow liquid 6 and the magnetic flow liquid 23 in annular damp tube 3 and the annular damp tube 22 to the left side, simultaneously, because the excircle at damping roller 28 and damping roller 29 is distributed with at least 4 pairs of magnetic poles, and clutch release slave cylinder 27 is to be made of permeability magnetic material, so, between the minor face 5 of the magnetic pole of damping roller 28 and damping roller 29 excircles and clutch release slave cylinder 27 and minor face 20, just formed stronger closed magnetic field, make be in the annular damp tube 3 that has been crushed between damping roller 28 and damping roller 29 and clutch release slave cylinder 27 minor faces 5 and the minor face 20 and the magnetic flow liquid 12 in the annular damp tube 22 and magnetic flow liquid 18 between damping roller 28 and damping roller 29 and clutch release slave cylinder 27 minor faces 5 and minor face 20 under the effect of high magnetic fields and viscosity is very high, make the magnetic flow liquid 6 that is in (that is: the clutch release slave cylinder 27 interior left sides) in damping roller 28 and damping roller 29 direction of advance pressed on ring shape damp tubes 3 and the annular damp tube 22 and magnetic flow liquid 23 be subject to the obstruction of the very high magnetic flow liquid 12 of damping roller 28 and damping roller 29 and clutch release slave cylinder 27 minor faces 5 and the interior viscosity of minor face 20 gaps and magnetic flow liquid 18 and be difficult to by the gap between damping roller 28 and damping roller 29 and clutch release slave cylinder 27 minor faces 5 and the minor face 20 in annular damp tube 3 and the 22 interior reverse flows of annular damp tube, the magnetic flow liquid 6 that is in damping roller 28 and damping roller 29 direction of advance pressed on ring shape damp tubes 3 and the annular damp tube 22 and magnetic flow liquid 23 can only be flowed towards the direction that damping roller 28 and damping roller 29 advance under damping roller 28 and damping roller 29 rolling compaction left, that is: the magnetic flow liquid 6 in the annular damp tube 3 can only flow clockwise at annular damp tube 3 interior works under damping roller 28 rolling compaction left, and the magnetic flow liquid 23 in the annular damp tube 22 can only flow counterclockwise at annular damp tube 22 interior works under damping roller 29 rolling compaction left.
Because annular damp tube 3 and annular damp tube 22 are made of magnetic conduction macromolecular material not, so, rolled by damping roller 28 and damping roller 29 and the local annular damp tube 3 that has been crushed and annular damp tube 22 will self elasticity and pipe in rapid reinstatement under the extruding of magnetic flow liquid 6 and magnetic flow liquid 23.
When control power supply 25 does not have to electromagnet 4 and electromagnet 21 output current, because electromagnet 4 and electromagnet 21 do not generate an electromagnetic field, make the viscosity of the annular damp tube 3 that is in electromagnet 4 and the electromagnet 21 and the magnetic flow liquid 6 in the annular damp tube 22 and magnetic flow liquid 23 lower, make magnetic flow liquid 6 and magnetic flow liquid 23 less in the interior damping force that is subject to when mobile of annular damp tube 3 and annular damp tube 22, thereby make damper rod 10 be subject to less damping force; When controlling power supply 25 behind electromagnet 4 and electromagnet 21 output currents, make electromagnet 4 and electromagnet 21 produce stronger electromagnetic field, make the viscosity of the annular damp tube 3 that is in electromagnet 4 and the electromagnet 21 and the magnetic flow liquid 6 in the annular damp tube 22 and magnetic flow liquid 23 higher, the damping force that magnetic flow liquid 6 and magnetic flow liquid 23 are subject to when annular damp tube 3 and annular damp tube 22 flows is larger, thereby makes damper rod 10 be subject to larger damping force; Output to size of current in electromagnet 4 and the electromagnet 21 by adjusting control power supply 25, be that capable of regulating is in annular damp tube 3 in electromagnet 4 and the electromagnet 21 and the viscosity size of the magnetic flow liquid 6 in the annular damp tube 22 and magnetic flow liquid 23, make damper rod 10 obtain changing with dynamic damping roller 28 and damping roller 29 size of damping force when the clutch release slave cylinder 27 interior motion, a kind of damping force of extrusion flow type single-output rod magneto-rheological damper is adjusted.
Situation when damper rod 10 drives the damping roller 28 that is pressed on annular damp tube 3 and the annular damp tube 22 and damping roller 29 and moves right in clutch release slave cylinder 27 by rolling wheel support 26 is similar with it, repeats no more herein.
Claims (5)
1. extrusion flow type single-output rod magneto-rheological damper, it comprises: two annular damp tubes, damper rod, rolling wheel support, two damping rollers, two groups of electromagnet, clutch release slave cylinder, it is characterized in that: the cross section of described clutch release slave cylinder inner chamber is rectangular, two ends at clutch release slave cylinder all are fixed with plate washer, the middle part of one of them plate washer is porose, be fixed with sliding bearing in the hole, at the two ends of two minor faces of clutch release slave cylinder through hole arranged, the aperture of through hole is greater than the external diameter of annular damp tube; Described two annular damp tubes are to be made of magnetic conduction macromolecular material not, have been full of magnetic flow liquid in two annular damp tubes, and two annular damp tubes pass respectively the through hole at two minor face two ends of clutch release slave cylinder and are fixed on the inside and outside two sides of clutch release slave cylinder minor face; Described rolling wheel support is T shape; Described two damping rollers are separately fixed at the two ends of rolling wheel support; One end of described damper rod and an end of rolling wheel support are fixed, and the other end of damper rod stretches out in clutch release slave cylinder by the sliding bearing on the clutch release slave cylinder one end plate washer; Described two groups of electromagnet are separately fixed on the excircle of two annular damp tubes outside two minor faces of clutch release slave cylinder.
2. a kind of extrusion flow type single-output rod magneto-rheological damper as claimed in claim 1, it is characterized in that: the described disc that is fixed on two damping rollers at rolling wheel support two ends is parallel to each other, and the diameter of two damping rollers is all on the same straight line, spacing sum between the diameter of two damping rollers and two the damping rollers is poor greater than two times of the spacing of two minor faces in the clutch release slave cylinder and annular damp tube external diameters, and the spacing sum between the diameter of two damping rollers and two the damping rollers is poor less than four times of the spacing of two minor faces in the clutch release slave cylinder and annular damp tube pipe thicknesses.
3. a kind of extrusion flow type single-output rod magneto-rheological damper as claimed in claim 1, it is characterized in that: described damping roller is to fix a magnetic material annulus by the excircle of the cylindrical body roller that consists of at non-magnet_conductible material to consist of, circumference at described magnetic material annulus is filled with at least 4 pairs of magnetic poles, and the thickness of damping roller is greater than the external diameter of annular damp tube.
4. a kind of extrusion flow type single-output rod magneto-rheological damper as claimed in claim 1, it is characterized in that: described clutch release slave cylinder is to be made of permeability magnetic material.
5. a kind of extrusion flow type single-output rod magneto-rheological damper as claimed in claim 1, it is characterized in that: described rolling wheel support is made of non-magnet_conductible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110394671 CN102392872B (en) | 2011-12-02 | 2011-12-02 | Extrusion flow type single-output rod magneto-rheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110394671 CN102392872B (en) | 2011-12-02 | 2011-12-02 | Extrusion flow type single-output rod magneto-rheological damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102392872A CN102392872A (en) | 2012-03-28 |
| CN102392872B true CN102392872B (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110394671 Expired - Fee Related CN102392872B (en) | 2011-12-02 | 2011-12-02 | Extrusion flow type single-output rod magneto-rheological damper |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1871455A (en) * | 2003-10-22 | 2006-11-29 | 通用汽车公司 | Magnetorheological fluid damper |
| CN2846886Y (en) * | 2005-08-19 | 2006-12-13 | 重庆大学 | Flow model current change shock absorber |
| CN101871504A (en) * | 2010-07-13 | 2010-10-27 | 沈阳长城液压机械制造有限公司 | Electromagnetic variable force shock absorber |
| CN202326894U (en) * | 2011-12-02 | 2012-07-11 | 谢宁 | Squeeze flow type single-outlet rod magneto-rheological damper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8051961B2 (en) * | 2007-10-30 | 2011-11-08 | Honda Motor Co., Ltd. | Magneto-rheological damper |
-
2011
- 2011-12-02 CN CN 201110394671 patent/CN102392872B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1871455A (en) * | 2003-10-22 | 2006-11-29 | 通用汽车公司 | Magnetorheological fluid damper |
| CN2846886Y (en) * | 2005-08-19 | 2006-12-13 | 重庆大学 | Flow model current change shock absorber |
| CN101871504A (en) * | 2010-07-13 | 2010-10-27 | 沈阳长城液压机械制造有限公司 | Electromagnetic variable force shock absorber |
| CN202326894U (en) * | 2011-12-02 | 2012-07-11 | 谢宁 | Squeeze flow type single-outlet rod magneto-rheological damper |
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| Publication number | Publication date |
|---|---|
| CN102392872A (en) | 2012-03-28 |
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Granted publication date: 20130206 Termination date: 20131202 |