CN103032512B - Combined piston double-rod magnetorheological damper - Google Patents
Combined piston double-rod magnetorheological damper Download PDFInfo
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- CN103032512B CN103032512B CN201310003349.6A CN201310003349A CN103032512B CN 103032512 B CN103032512 B CN 103032512B CN 201310003349 A CN201310003349 A CN 201310003349A CN 103032512 B CN103032512 B CN 103032512B
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- piston
- damping fin
- slip damping
- groove
- clutch release
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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 damper 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, as: Chinese Patent Application No. is: " the two rod magnetic flux variable fluid damper of built-in air bag type " of 03132633.1, and Chinese Patent Application No. is: " two rod magnetic steel piston type magneto-rheological damper " of 201120071512.9, working clearance in this kind of MR damper between cylindrical piston and clutch release slave cylinder is constant, the size of its damping force can only power supply carries out regulating by controlling, the regulation range of its damping force is difficult to expand, and the two outstretch pole magnetorheological damper of combined piston of the present invention not only can regulate its damping force by controlling power supply, can also by the gap width that adjustment piston slides between damping fin and trapezoidal groove, the size of the damp channel that the magnetic flow liquid in clutch release slave cylinder is flowed changes, and make damping force during its work obtain larger expansion.
Summary of the invention
Damping force regulation range for common double outstretch pole magnetorheological damper is difficult to the deficiency expanded, and the present invention proposes a kind of novel MR damper, that is: the two outstretch pole magnetorheological damper of a kind of combined piston, and technological scheme of the present invention is as follows:
The two outstretch pole magnetorheological damper of a kind of combined piston, it comprises piston, two piston rods, clutch release slave cylinder and external electromagnets; Clutch release slave cylinder is wherein cylindrical shape, is fixed with end cap at the two ends of clutch release slave cylinder, porose at the center of end cap, is provided with seal arrangement and sliding bearing in hole; Have through hole at the center of a piston rod, one 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 clutch release slave cylinder respectively by the seal arrangement at clutch release slave cylinder two ends and sliding bearing; External electromagnet is fixed on the excircle of clutch release slave cylinder; Piston is made up 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 leaves the flow clearance of magnetic flow liquid, a groove is had at least in the axis of piston only excircle, groove is isosceles trapezoid in the longitudinal direction, has the strip through-hole of an axis in the bottom of groove; Slip damping fin is arranged in groove, the shape of slip damping fin is identical with the shape of groove, 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 is equal with the width on the narrow limit of groove, and the length of slip damping fin is less than the length of groove; Slip damping fin position regulator is arranged in piston only, slip damping fin is fixed by the strip through-hole bottom groove and the slip damping fin position regulator in piston, and the regulating lever of slip damping fin position regulator is arranged in the central through bore of a piston rod; Piston is arranged in clutch release slave cylinder, in clutch release slave cylinder, be filled with magnetic flow liquid; Clutch release slave cylinder is made up of non-magnet_conductible material, piston only and slip damping fin are made up of permeability magnetic material, and the damping fin position regulator that slides is made up of connecting rod and adjustment bolt, one end of connecting rod and the middle part of slip damping fin are fixed, and the other end of connecting rod is connected with the adjustment bolt be arranged in piston rod through hole through the strip through-hole bottom groove.
After taking technique scheme, integral cylinder piston traditional in clutch release slave cylinder is made to change in order to Combined cylindrical body piston, that is: combined piston is combined and the cylindrical body synthesized by the slip damping fin of (or multiple) 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 one piece of (or polylith) slip damping fin groove on piston on combined piston by bolt, the passage of two (or many) magnetic flow liquid flowings can be formed in the axis of piston face (that is: the excircle of piston) (that is: on the flow direction of magnetic flow liquid), therefore, by the gap width that adjustment piston slides between damping fin and trapezoidal groove, make the magnetic flow liquid in clutch release slave cylinder not only can along the Clearance Flow between outside piston side face and clutch release slave cylinder inner peripheral surface, but also the channel flow can slided between damping fin and trapezoidal groove by piston face, thereby increase the flow channel of magnetic flow liquid in clutch release slave cylinder, because piston only is made up of permeability magnetic material, so, the intensity of the electromagnetic field in the gap between outside piston side face and clutch release slave cylinder inner peripheral surface is maximum, make the effect that the magnetic flow liquid along the flowing of piston face axial passage also will be subject to external electromagnet and generates an electromagnetic field, the adjustment range of the work damping force of the two outstretch pole magnetorheological damper of combined piston is expanded.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention, is also the schematic diagram of slip damping fin when home position.
Fig. 2 is the sectional view of Fig. 1 at piston place.
Fig. 3 is the sectional view of the present invention at slip damping fin place.
Fig. 4 is the sectional view of Fig. 3 at piston place.
Fig. 5 is the schematic diagram of the present invention when working, and is also the schematic diagram after slip damping fin leaves home position.
Fig. 6 is the sectional view of Fig. 5 at piston place.
Fig. 7 is the sectional view of the present invention at slip damping fin place when working.
Fig. 8 is the schematic diagram of damping fin when adjusting to maximum position that in the present invention, piston slide.
Embodiment
The structure of the present invention's (having two grooves in the axis of piston only excircle) is described in detail below in conjunction with accompanying drawing:
See 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 damper of a kind of combined piston, it clutch release slave cylinder 1 comprising piston 6, piston rod 4 and piston rod 12, external electromagnet 3 and be made up of non-magnet_conductible material; Clutch release slave cylinder 1 is wherein cylindrical shape, end cap 9 and end cap 24 is fixed with at the two ends of clutch release slave cylinder 1, porose at the center of end cap 9 and end cap 24, seal arrangement 10 and sliding bearing 11 are installed in the center hole of end cap 9, seal arrangement 23 and sliding bearing 22 are installed in the center hole of end cap 24; Through hole 18 is had at the center of piston rod 12, one end of piston rod 4 and piston rod 12 is fixed with piston only 6 respectively, and the other end of piston rod 4 and piston rod 12 stretches out from the two ends in clutch release slave cylinder 1 respectively by the seal arrangement 10 and 23 at clutch release slave cylinder 1 two ends and sliding bearing 11 and 22; External electromagnet 3 is fixed on the excircle of clutch release slave cylinder 1, controls power supply 20 and is connected with external electromagnet 3 by lead-in wire; The piston 6 be made up of permeability magnetic material is made up of piston only 6, the slip damping fin 7 be made up of permeability magnetic material and slip damping fin position regulator, slip damping fin position regulator is made up 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 is also connected with the middle part of connecting rod 14 by bearing 15 through the screw thread 16 of piston 6 one end.
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 leaves the flow clearance 8 of magnetic flow liquid 2, two grooves 5 are had in the axis of piston only 6 excircle, groove 5 is isosceles trapezoid in the longitudinal direction, has the strip through-hole 13 of an axis in the bottom of groove 5; Slip damping fin 7 is arranged in groove 5, the shape of slip damping fin 7 is identical with the shape of groove 5, 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 is equal with the width on the narrow limit of groove 5, and the length of slip damping fin 7 is less than the length of groove 5; Slip damping fin position regulator is arranged in piston only 6, and the adjustment bolt 17 of slip damping fin position regulator is arranged in the central through bore 18 of piston rod 12; Piston 6 is arranged in clutch release slave cylinder 1, is filled with magnetic flow liquid 2 in clutch release slave cylinder 1.
The two outstretch pole magnetorheological damper working condition of combined piston is such: see Fig. 1 to Fig. 7, when the slip damping fin 7 on piston is in home position, the two outstretch pole magnetorheological damper of combined piston can adjust the damping force that it exports by controlling power supply 20 in good time, and the two outstretch pole magnetorheological damper working conditions namely with common are similar.
When after the diverse location being adjusted slip damping fin 7 groove 5 on piston 6 on combined piston 6 by bolt 17 (referring to Fig. 5), the passage 25(that can flow at the axis of the excircle of piston 7 (that is: on the flow direction of magnetic flow liquid) formation four magnetic flow liquids 2 refers to Fig. 5 and Fig. 6), therefore, by the gap width that adjustment piston 6 slides between damping fin 7 and trapezoidal groove 5, magnetic flow liquid 2 in clutch release slave cylinder 1 not only can be flowed by the gap 8 between piston 6 outer peripheral surface and clutch release slave cylinder 1 inner peripheral surface, but also can be flowed by the passage 25 piston 6 slided between damping fin 7 and trapezoidal groove 5, thereby increase the flow channel of magnetic flow liquid 2 in clutch release slave cylinder 1, therefore, the two outstretch pole magnetorheological damper of combined piston not only can adjust its damping force exported by the output current of adjustment control power supply 20, but also passage 25 size that can be adjusted on piston 6 by the gap width of sliding between damping fin 7 and trapezoidal groove 5 on adjustment piston 6 adjusts its damping force exported, therefore, the adjustment range of the work damping force of the two outstretch pole magnetorheological damper of combined piston is larger than the adjustment range of conventional two outstretch pole magnetorheological dampers output damping forces.
Claims (1)
1. the two outstretch pole magnetorheological damper of 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, porose at the center of end cap, is provided with seal arrangement and sliding bearing in hole; There is through hole at the center of a piston rod in described two piston rods, and one 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 clutch release slave cylinder respectively by the seal arrangement at clutch release slave cylinder two ends and sliding bearing; Described external electromagnet is fixed on the excircle of clutch release slave cylinder; It is characterized in that: described piston is made up 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 leaves the flow clearance of magnetic flow liquid, a groove is had at least in the axis of piston only excircle, groove is isosceles trapezoid in the longitudinal direction, has the strip through-hole of an axis in the bottom of groove; Slip damping fin is arranged in groove, the shape of slip damping fin is identical with the shape of groove, 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 is equal with the width on the narrow limit of groove, and the length of slip damping fin is less than the length of groove; Slip damping fin position regulator is arranged in piston only, slip damping fin is fixed by the strip through-hole bottom groove and the slip damping fin position regulator in piston, and the regulating lever of slip damping fin position regulator is arranged in the central through bore of a piston rod; Described piston is arranged in clutch release slave cylinder, in clutch release slave cylinder, be filled with magnetic flow liquid; Described clutch release slave cylinder is made up of non-magnet_conductible material, and piston only and slip damping fin are made up of permeability magnetic material; Described slip damping fin position regulator is made up of connecting rod and adjustment bolt, and one end of connecting rod and the middle part of slip damping fin are fixed, and the other end of connecting rod is connected with the adjustment bolt be arranged in piston rod through hole through the strip through-hole bottom groove.
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 |
|---|---|
| CN103032512A CN103032512A (en) | 2013-04-10 |
| CN103032512B true CN103032512B (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310003349.6A Expired - Fee Related CN103032512B (en) | 2013-01-06 | 2013-01-06 | Combined piston double-rod magnetorheological damper |
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Families Citing this family (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 |
| 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 |
| 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 |
| CN105041955A (en) * | 2015-07-20 | 2015-11-11 | 常州大学 | Double-pole multistage diffraction passive 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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6260675B1 (en) * | 2000-01-31 | 2001-07-17 | Delphi Technologies, Inc. | Magnetorheological fluid damper |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6464051B2 (en) * | 2001-03-16 | 2002-10-15 | Delphi Technologies, Inc. | Magnetorheological dampers with improved wear resistance |
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2013
- 2013-01-06 CN CN201310003349.6A patent/CN103032512B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6260675B1 (en) * | 2000-01-31 | 2001-07-17 | Delphi Technologies, Inc. | Magnetorheological fluid damper |
| 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 |
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| CN103032512A (en) | 2013-04-10 |
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Granted publication date: 20150211 Termination date: 20160106 |