CN103032512A - Combined piston double-rod magnetorheological damper - Google Patents
Combined piston double-rod magnetorheological damper Download PDFInfo
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- CN103032512A CN103032512A CN2013100033496A CN201310003349A CN103032512A CN 103032512 A CN103032512 A CN 103032512A CN 2013100033496 A CN2013100033496 A CN 2013100033496A CN 201310003349 A CN201310003349 A CN 201310003349A CN 103032512 A CN103032512 A CN 103032512A
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- slip damping
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Abstract
The invention discloses a combined piston double-rod magnetorheological damper which comprises a piston, two piston rods, a working cylinder and an external electromagnet, wherein the working cylinder is cylindrical; end covers are fixed at the two ends of the working cylinder; a through hole is formed in the center of each end cover; a sliding bearing is mounted in the hole; a through hole is formed in the center of one piston rod; the external electromagnet is fixed on the outer circumference of the working cylinder; the piston consists of a piston body, a sliding damping piece and a sliding damping piece position adjustor; the piston body is in the shape of a hollow cylinder; the external diameter of the piston body is smaller than that of the working cylinder, and a flowing clearance of magnetorheological fluid is formed; at least one through groove is formed in the axial direction of the outer circumference of the piston body and is in the shape of a isosceles trapezoid in the length direction; and the sliding damping piece is mounted in the through hole, and the shape of the sliding damping piece is completely identical with that of the through groove.
Description
Technical field
The invention belongs to a kind of MR damper, be specifically related to the two outstretch pole magnetorheological dampers of a kind of combined piston.
Background technique
MR damper is a kind of intelligent vibration damping device, the piston of existing pair of outstretch pole magnetorheological damper mostly is cylindrical, such as: Chinese patent application number be: 03132633.1 " the two rod magnetic flux variable fluid dampers of built-in air bag type ", and Chinese patent application number is: 201120071512.9 " two rod magnetic steel piston type magneto-rheological damper ", working clearance in this class MR damper between cylindrical piston and the clutch release slave cylinder is constant, the size of its damping force can only be regulated by the control power supply, the regulation range of its damping force is difficult to enlarge, and the two outstretch pole magnetorheological dampers of combined piston of the present invention not only can be regulated its damping force by the control power supply, can also be by the gap width between slip damping fin and the trapezoidal groove on the adjustment piston, the size of the damp channel that the magnetic flow liquid in the clutch release slave cylinder flows is changed, and the damping force when making its work obtain larger expansion.
Summary of the invention
Deficiency for the damping force regulation range of common double outstretch pole magnetorheological damper is difficult to enlarge the present invention proposes a kind of novel MR damper, that is: two outstretch pole magnetorheological dampers of a kind of combined piston, and technological scheme of the present invention is as follows:
The two outstretch pole magnetorheological dampers of a kind of combined piston, it comprises piston, two piston rods, clutch release slave cylinder and external electromagnets; Clutch release slave cylinder wherein is cylindrical shape, is fixed with end cap at the two ends of clutch release slave cylinder, and is porose at the center of end cap, and seal arrangement and sliding bearing are installed in the hole; There is through hole at center at a piston rod, and an end of two piston rods is fixed with piston only respectively, and the other end of two piston rods stretches out from the two ends in the clutch release slave cylinder by seal arrangement and the sliding bearing at clutch release slave cylinder two ends respectively; External electromagnet is fixed on the excircle of clutch release slave cylinder; Piston is made of piston only, slip damping fin, slip damping fin position regulator, piston only is the hollow cylinder bodily form, the external diameter of piston only is less than the internal diameter of clutch release slave cylinder and leave the flow gap of magnetic flow liquid, axially has a groove at least at the piston only excircle, groove is isosceles trapezoid in the longitudinal direction, and an axial strip through-hole is arranged in the bottom of groove; The slip damping fin is installed in the groove, the shape of slip damping fin and the shape of groove are identical, the thickness of slip damping fin is identical with the degree of depth of groove, the external diameter of slip damping fin is identical with the external diameter of piston only, the width on the narrow limit of slip damping fin equates that with the width on the narrow limit of groove the length of slip damping fin is less than the length of groove; Slip damping fin position regulator is installed in the piston only, the slip damping fin is fixed by the strip through-hole of groove bottom and the slip damping fin position regulator in the piston, and the regulating lever of slip damping fin position regulator is installed in the central through bore of a piston rod; Piston is installed in the clutch release slave cylinder, has been full of magnetic flow liquid in clutch release slave cylinder; Clutch release slave cylinder is made of non-magnet_conductible material, piston only and slip damping fin are made of permeability magnetic material, and slip damping fin position regulator is made of connecting rod and adjustment bolt, one end of connecting rod and the middle part of slip damping fin are fixed, and the strip through-hole adjustment bolt interior with being installed in the piston rod through hole that the other end of connecting rod passes the groove bottom is connected.
After having taked technique scheme, the interior traditional integral cylinder piston of clutch release slave cylinder is changed over for Combined cylindrical body piston, that is: combined piston is synthetic cylindrical body by the slip damping fin combination of (or a plurality of) groove and equal number, when not adjusting the position of slip damping fin, the working condition of the MR damper of combined piston and integral cylinder piston is similar; When adjusting the diverse location of (or polylith) slip damping fin groove on piston on the combined piston by bolt, can form the passage that two (or many) magnetic flow liquids flow at axial (that is: on the flow direction at magnetic flow liquid) of piston face (that is: the excircle of piston), therefore, can be by the gap width between slip damping fin and the trapezoidal groove on the adjustment piston, make the magnetic flow liquid in the clutch release slave cylinder not only can be along the Clearance Flow between outside piston side face and the clutch release slave cylinder inner peripheral surface, but also can be by slide channel flow between damping fin and the trapezoidal groove of piston face, increased thus the flow channel of magnetic flow liquid in the clutch release slave cylinder, because piston only is made of permeability magnetic material, so, the intensity of the electromagnetic field in the gap between outside piston side face and the clutch release slave cylinder inner peripheral surface is maximum, make the magnetic flow liquid that flows along the piston face axial passage also will be subject to the effect that external electromagnet generates an electromagnetic field, make the adjustment range of the work damping force of the two outstretch pole magnetorheological dampers of combined piston obtain expanding.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention, also is the schematic representation of slip damping fin when the home position.
Fig. 2 is that Fig. 1 is at the sectional view at piston place.
Fig. 3 is that the present invention is at the sectional view at slip damping fin place.
Fig. 4 is that Fig. 3 is at the sectional view at piston place.
Fig. 5 is the schematic representation of the present invention when working, and also is the schematic representation after the slip damping fin leaves the home position.
Fig. 6 is that Fig. 5 is at the sectional view at piston place.
Fig. 7 is the present invention's sectional view at slip damping fin place when working.
Fig. 8 is the schematic representation when the slip damping fin is adjusted to maximum position on the piston among the present invention.
Embodiment
Describe the present invention's's (at piston only excircle two grooves are axially arranged) structure in detail below in conjunction with accompanying drawing:
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, this is a kind of concrete structure of the present invention, the two outstretch pole magnetorheological dampers of a kind of combined piston, and it comprises piston 6, piston rod 4 and piston rod 12, external electromagnet 3 and the clutch release slave cylinder 1 that is made of non-magnet_conductible material; Clutch release slave cylinder 1 wherein is cylindrical shape, be fixed with end cap 9 and end cap 24 at the two ends of clutch release slave cylinder 1, center at end cap 9 and end cap 24 is porose, and seal arrangement 10 and sliding bearing 11 are installed in the center hole of end cap 9, and seal arrangement 23 and sliding bearing 22 are installed in the center hole of end cap 24; At the center of piston rod 12 through hole 18 is arranged, one end of piston rod 4 and piston rod 12 is fixing with piston only 6 respectively, the other end of piston rod 4 and piston rod 12 respectively the seal arrangement 10 by clutch release slave cylinder 1 two ends and 23 and the two ends of sliding bearing 11 and 22 in the clutch release slave cylinder 1 stretch out; External electromagnet 3 is fixed on the excircle of clutch release slave cylinder 1, and control power supply 20 is connected with external electromagnet 3 by going between; The piston 6 that is made of permeability magnetic material is made of piston only 6, the slip damping fin 7 and the slip damping fin position regulator that are made of permeability magnetic material, slip damping fin position regulator is made of connecting rod 14 and adjustment bolt 17, the middle part of the two ends of connecting rod 14 and two slip damping fins 8 is fixed, and adjustment bolt 17 passes the screw thread 16 of piston 6 one ends and is connected with the middle part of connecting rod 14 by bearing 15.
Piston only 6 is the hollow cylinder bodily form, the external diameter of piston only 6 is less than the internal diameter of clutch release slave cylinder 1 and leave the flow gap 8 of magnetic flow liquid 2, at piston only 6 excircles two grooves 5 are arranged axially, groove 5 is isosceles trapezoid in the longitudinal direction, and an axial strip through-hole 13 is arranged in the bottom of groove 5; Slip damping fin 7 is installed in the groove 5, the shape of the shape of slip damping fin 7 and groove 5 is identical, the thickness of slip damping fin 7 is identical with the degree of depth of groove 5, the external diameter of slip damping fin 7 is identical with the external diameter of piston only 6, the width on the narrow limit of slip damping fin 7 equates that with the width on the narrow limit of groove 5 length of slip damping fin 7 is less than the length of groove 5; Slip damping fin position regulator is installed in the piston only 6, and the adjustment bolt 17 of slip damping fin position regulator is installed in the central through bore 18 of piston rod 12; Piston 6 is installed in the clutch release slave cylinder 1, has been full of magnetic flow liquid 2 in clutch release slave cylinder 1.
The two outstretch pole magnetorheological damper working conditions of combined piston are such: referring to Fig. 1 to Fig. 7, when the slip damping fin 7 on the piston is in the home position, the two outstretch pole magnetorheological dampers of combined piston can be adjusted the damping force of its output by control power supply 20 in good time, and are namely similar with common two outstretch pole magnetorheological damper working conditions.
When adjusting slip damping fin 7 on the combined pistons 6 by bolt 17 behind the diverse location of groove 5 on the piston 6 (seeing Fig. 5 for details), can form at axial (that is: on the flow direction at magnetic flow liquid) of the excircle of piston 7 the passage 25(that four magnetic flow liquids 2 flow and see Fig. 5 and Fig. 6 for details), therefore, by the gap width between slip damping fin 7 and the trapezoidal groove 5 on the adjustment piston 6, magnetic flow liquid 2 in the clutch release slave cylinder 1 not only can be flowed by the gap 8 between piston 6 outer peripheral surfaces and clutch release slave cylinder 1 inner peripheral surface, but also can flow by the passage 25 between slip damping fin 7 on the piston 6 and the trapezoidal groove 5, increased thus the flow channel of clutch release slave cylinder 1 interior magnetic flow liquid 2; Therefore, the two outstretch pole magnetorheological dampers of combined piston not only can be adjusted by the output current of adjusting control power supply 20 damping force of its output, but also can adjust the damping force that passage 25 sizes on the piston 6 are adjusted its output by adjusting the gap width between the slip damping fin 7 and trapezoidal groove 5 on the piston 6, therefore, the adjustment range of the work damping force of the two outstretch pole magnetorheological dampers of combined piston is larger than the adjustment range of conventional two outstretch pole magnetorheological damper output damping forces.
Claims (3)
1. two outstretch pole magnetorheological dampers of a combined piston, it comprises piston, two piston rods, clutch release slave cylinder and external electromagnets; Described clutch release slave cylinder is cylindrical shape, is fixed with end cap at the two ends of clutch release slave cylinder, and is porose at the center of end cap, and seal arrangement and sliding bearing are installed in the hole; There is through hole at the center of a piston rod in described two piston rods, and an end of two piston rods is fixed with piston only respectively, and the other end of two piston rods stretches out from the two ends in the clutch release slave cylinder by seal arrangement and the sliding bearing at clutch release slave cylinder two ends respectively; Described external electromagnet is fixed on the excircle of clutch release slave cylinder; It is characterized in that: described piston is made of piston only, slip damping fin, slip damping fin position regulator, piston only is the hollow cylinder bodily form, the external diameter of piston only is less than the internal diameter of clutch release slave cylinder and leave the flow gap of magnetic flow liquid, axially has a groove at least at the piston only excircle, groove is isosceles trapezoid in the longitudinal direction, and an axial strip through-hole is arranged in the bottom of groove; The slip damping fin is installed in the groove, the shape of slip damping fin and the shape of groove are identical, the thickness of slip damping fin is identical with the degree of depth of groove, the external diameter of slip damping fin is identical with the external diameter of piston only, the width on the narrow limit of slip damping fin equates that with the width on the narrow limit of groove the length of slip damping fin is less than the length of groove; Slip damping fin position regulator is installed in the piston only, the slip damping fin is fixed by the strip through-hole of groove bottom and the slip damping fin position regulator in the piston, and the regulating lever of slip damping fin position regulator is installed in the central through bore of a piston rod; Described piston is installed in the clutch release slave cylinder, has been full of magnetic flow liquid in clutch release slave cylinder.
2. two outstretch pole magnetorheological dampers of a kind of combined piston as claimed in claim 1, it is characterized in that: described clutch release slave cylinder is made of non-magnet_conductible material, and piston only and slip damping fin are made of permeability magnetic material.
3. two outstretch pole magnetorheological dampers of a kind of combined piston as claimed in claim 1, it is characterized in that: described slip damping fin position regulator is made of connecting rod and adjustment bolt, one end of connecting rod and the middle part of slip damping fin are fixed, and the strip through-hole adjustment bolt interior with being installed in the piston rod through hole that the other end of connecting rod passes the groove bottom is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003349.6A CN103032512B (en) | 2013-01-06 | 2013-01-06 | Combined piston double-rod magnetorheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003349.6A CN103032512B (en) | 2013-01-06 | 2013-01-06 | Combined piston double-rod magnetorheological damper |
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| Publication Number | Publication Date |
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| CN103032512A true CN103032512A (en) | 2013-04-10 |
| CN103032512B CN103032512B (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310003349.6A Expired - Fee Related CN103032512B (en) | 2013-01-06 | 2013-01-06 | Combined piston double-rod magnetorheological damper |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041955A (en) * | 2015-07-20 | 2015-11-11 | 常州大学 | Double-pole multistage diffraction passive single-control variable-damping magneto-rheological damper |
| CN105065551A (en) * | 2015-07-19 | 2015-11-18 | 常州大学 | Double-rod variable orifice adaptive magnetorheological damper |
| CN105156566A (en) * | 2015-07-20 | 2015-12-16 | 常州大学 | Double-rod multi-stage diffraction active dual-control variable-damping magneto-rheological damper |
| CN105156556A (en) * | 2015-07-20 | 2015-12-16 | 常州大学 | Double-rod multi-stage diffraction active single-control variable-damping magneto-rheological damper |
| CN105156573A (en) * | 2015-07-20 | 2015-12-16 | 常州大学 | Single-rod multistage diffraction passive double-control variable-damping magnetorheological damper |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6260675B1 (en) * | 2000-01-31 | 2001-07-17 | Delphi Technologies, Inc. | Magnetorheological fluid damper |
| US20020130003A1 (en) * | 2001-03-16 | 2002-09-19 | Delphi Technologies, Inc. | Magnetorheological dampers with improved wear resistance |
| CN101725659A (en) * | 2009-12-15 | 2010-06-09 | 谭和平 | External electromagnet magnetorheological damper |
| CN101749358A (en) * | 2010-02-24 | 2010-06-23 | 谭和平 | Damping force adjustable permanent magnet type magnetic current variable damper |
| CN201627871U (en) * | 2010-03-30 | 2010-11-10 | 谭和平 | Double-ejector rod self-adaptation double-control magnetic current damper |
| CN203051606U (en) * | 2013-01-06 | 2013-07-10 | 谭晓婧 | Combined-piston double-rod magneto-rheological damper |
-
2013
- 2013-01-06 CN CN201310003349.6A patent/CN103032512B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6260675B1 (en) * | 2000-01-31 | 2001-07-17 | Delphi Technologies, Inc. | Magnetorheological fluid damper |
| US20020130003A1 (en) * | 2001-03-16 | 2002-09-19 | Delphi Technologies, Inc. | Magnetorheological dampers with improved wear resistance |
| CN101725659A (en) * | 2009-12-15 | 2010-06-09 | 谭和平 | External electromagnet magnetorheological damper |
| CN101749358A (en) * | 2010-02-24 | 2010-06-23 | 谭和平 | Damping force adjustable permanent magnet type magnetic current variable damper |
| CN201627871U (en) * | 2010-03-30 | 2010-11-10 | 谭和平 | Double-ejector rod self-adaptation double-control magnetic current damper |
| CN203051606U (en) * | 2013-01-06 | 2013-07-10 | 谭晓婧 | Combined-piston double-rod magneto-rheological damper |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065551A (en) * | 2015-07-19 | 2015-11-18 | 常州大学 | Double-rod variable orifice adaptive magnetorheological damper |
| CN105041955A (en) * | 2015-07-20 | 2015-11-11 | 常州大学 | Double-pole multistage diffraction passive single-control variable-damping magneto-rheological damper |
| CN105156566A (en) * | 2015-07-20 | 2015-12-16 | 常州大学 | Double-rod multi-stage diffraction active dual-control variable-damping magneto-rheological damper |
| CN105156556A (en) * | 2015-07-20 | 2015-12-16 | 常州大学 | Double-rod multi-stage diffraction active single-control variable-damping magneto-rheological damper |
| CN105156573A (en) * | 2015-07-20 | 2015-12-16 | 常州大学 | Single-rod multistage diffraction passive double-control variable-damping magnetorheological damper |
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| CN103032512B (en) | 2015-02-11 |
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Granted publication date: 20150211 Termination date: 20160106 |
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