CN103062275B - Gapped magneto-rheological damper with single piston rod out - Google Patents
Gapped magneto-rheological damper with single piston rod out Download PDFInfo
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- CN103062275B CN103062275B CN201310015057.4A CN201310015057A CN103062275B CN 103062275 B CN103062275 B CN 103062275B CN 201310015057 A CN201310015057 A CN 201310015057A CN 103062275 B CN103062275 B CN 103062275B
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- piston
- slave cylinder
- clutch release
- release slave
- slip damping
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Abstract
The invention discloses a gapped magneto-rheological damper with single piston rod out. The magneto-rheological damper comprises a piston, a piston rod, a working cylinder, a compensating air bag and an external electromagnet, the piston comprises a rectangular piston body, two slide damping blocks and a slide damping block position adjuster, two short sides of the vertical section of the piston body are arc-shaped, two long sides of the vertical section of the piston body are axially provided with two symmetrical grooves through the piston body, the two slide damping blocks are mounted in the two grooves respectively and are fixed on the slide damping block position adjuster, the piston rod is provided with a central through hole, one end of the piston rod is fixed with the piston body, the other end of the piston rod extends out from the working cylinder through a sealing device and a sliding bearing which are at one end of the working cylinder, the compensating air bag is fixed at the inner bottom of the working cylinder, the external electromagnet is fixed on a shell of the working cylinder, and the piston is mounted in the working cylinder filled with magneto-rheological fluid.
Description
Technical field
The invention belongs to a kind of MR damper, be specifically related to a kind of crack piston single outstretch pole magnetorheological damper.
Background technique
MR damper is a kind of intelligent vibration damping device, the structure of common MR damper installs piston in clutch release slave cylinder, and magnetic flow liquid is filled with in clutch release slave cylinder, the electromagnetic field intensity being applied to magnetic flow liquid in clutch release slave cylinder is adjusted by controlling power supply, the viscosity of magnetic flow liquid in clutch release slave cylinder is changed, thus make the magnetic flow liquid in clutch release slave cylinder can obtain different damping forces when being pressed through the working clearance between piston outer periphery wall from clutch release slave cylinder inner circle wall, because the working clearance in this kind of MR damper between piston outer periphery wall and clutch release slave cylinder inner circle wall is certain value, so the regulation range of its damping force is difficult to expand, and crack of the present invention piston single outstretch pole magnetorheological damper not only can regulate its damping force by controlling power supply, can also by the gap width that adjustment piston slides between damping block and trapezoidal groove, working clearance between piston outer periphery wall and clutch release slave cylinder inner circle wall is changed, that is: the size of the damp channel making the magnetic flow liquid in clutch release slave cylinder flow changes, thus make damping force during its work obtain larger expansion.
Summary of the invention
Can not regulate for the working clearance in common MR damper between piston outer periphery wall and clutch release slave cylinder inner circle wall, its damping force regulation range is made to be difficult to the deficiency expanded, the present invention proposes a kind of novel MR damper, that is: a crack piston single outstretch pole magnetorheological damper, technological scheme of the present invention is as follows:
A kind of crack piston single outstretch pole magnetorheological damper, it comprises piston, piston rod, clutch release slave cylinder, compensation air bag and external electromagnet; Piston is wherein made up of piston only, two pieces of slip damping blocks, slip damping block position regulators, piston only is cuboid shape, two minor faces of piston only longitudinal plane are circular arc, axially there is being the groove of two symmetrical through piston onlies on two long limits of piston only longitudinal plane, groove is isosceles trapezoid in the axis of piston only, has the strip through-hole of an axis in the bottom of two grooves; Two pieces of slip damping blocks are arranged in two grooves respectively, the shape of slip damping block is identical with the shape of groove, the thickness of slip damping block is identical with the degree of depth of groove, the width on the narrow limit of slip damping block is equal with the width on the narrow limit of groove, and the length of slip damping block is less than the length of groove; Two pieces of slip damping blocks are fixed on slip damping block position regulator, and slip damping block position regulator is arranged in the strip through-hole of two bottom portion of groove; The longitudinal plane shape of clutch release slave cylinder inner chamber is identical with the longitudinal plane shape of piston, and the longitudinal plane area of clutch release slave cylinder inner chamber is greater than the longitudinal plane area of piston, leaves magnetic flow liquid and flow gap between piston outer periphery wall and clutch release slave cylinder inner circle wall; Be fixed with two end caps at the two ends of clutch release slave cylinder, one of them end cap has center hole, is provided with seal arrangement and sliding bearing in center hole; Piston rod has central through bore, and one end and the piston only of piston rod are fixed, and the other end of piston rod is stretched out in clutch release slave cylinder by the seal arrangement of clutch release slave cylinder one end and sliding bearing; Compensation air bag is fixed on the bottom in clutch release slave cylinder; External electromagnet is fixed on the shell of clutch release slave cylinder; Piston is arranged in clutch release slave cylinder, magnetic flow liquid is filled with in clutch release slave cylinder, slip damping block position regulator is made up of connecting rod and regulating lever, connecting rod is through the strip through-hole of bottom portion of groove, the middle part of the two ends of connecting rod and two slip damping blocks is fixed, the threaded one end of regulating lever is passed the screw in the middle part of connecting rod and is arranged on the two ends of strip through-hole axis, and the other end of regulating lever extend in the central through bore of piston rod; Piston and slip damping block adopt permeability magnetic material to form; Clutch release slave cylinder is made up of non-magnet_conductible material.
After taking technique scheme, the working clearance between clutch release slave cylinder inner carrier and clutch release slave cylinder is made to change into a variable from a definite value, crack of the present invention piston single outstretch pole magnetorheological damper is not when adjusting the position of slip damping block, similar with the working condition of common single outstretch pole magnetorheological damper, when being adjusted two pieces of slip damping blocks on piston by slip damping block position regulator when the diverse location of piston upper trapezoid groove, the passage of four magnetic flow liquid flowings can be formed in the axis (that is: on the flow direction of magnetic flow liquid) of piston outer periphery wall (that is: two planes of piston), therefore, by the gap width that adjustment piston slides between damping block and trapezoidal groove, make the magnetic flow liquid in clutch release slave cylinder not only can along the Clearance Flow between piston outer periphery wall and clutch release slave cylinder inner circle wall, but also can by the channel flow of piston sliding between damping block and trapezoidal groove, thereby increase the flow channel of magnetic flow liquid in clutch release slave cylinder, because piston only and slip damping block are made up of permeability magnetic material, so, the intensity of the electromagnetic field in the gap between piston outer periphery wall and clutch release slave cylinder inner circle wall is maximum, make the effect that the magnetic flow liquid along the flowing of piston outer periphery wall axial passage also will be subject to external electromagnet and generates an electromagnetic field, the adjustment range of the work damping force of crack piston single outstretch pole magnetorheological damper 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 block when home position.
Fig. 2 be Fig. 1 A-A to sectional view.
Fig. 3 be Fig. 1 B-B to sectional view.
Fig. 4 is the schematic diagram of the present invention when working, and is also the schematic diagram after slip damping block leaves home position.
Fig. 5 be Fig. 4 A-A to sectional view.
Fig. 6 be Fig. 4 B-B to sectional view.
Fig. 7 is the schematic diagram of damping block when adjusting to maximum position that in the present invention, piston slide.
Fig. 8 be Fig. 7 A-A to sectional view.
Fig. 9 be Fig. 7 B-B to sectional view.
Embodiment
Structure of the present invention is described in detail below in conjunction with accompanying drawing:
See Fig. 1, Fig. 2, Fig. 3, this is a kind of concrete structure of the present invention, a kind of crack piston single outstretch pole magnetorheological damper, and it comprises piston 6, piston rod 13, clutch release slave cylinder 5, compensates air bag 2 and external electromagnet 1; Piston 6 is wherein made up of piston only 6, two pieces of slip damping blocks 9, slip damping block position regulator, the piston only 6 be made up of permeability magnetic material is cuboid shape, two minor faces of piston only 6 longitudinal plane are circular arc E, axially there is being the groove 7 of two symmetrical through piston onlies on two long limits of piston only 6 longitudinal plane, groove 7 is isosceles trapezoid in the axis of piston only 6, has the strip through-hole 10 of an axis in the bottom of two grooves 7; The two pieces of slip damping blocks 9 be made up of permeability magnetic material are arranged in two grooves 7 respectively, the shape of slip damping block 9 is identical with the shape of groove 7, the thickness of slip damping block 9 is identical with the degree of depth of groove 7, the width on the narrow limit of slip damping block 9 is equal with the width on the narrow limit of groove 7, and the length of slip damping block 9 is less than the length of groove 7; Two pieces of slip damping blocks 9 are fixed on slip damping block position regulator, slip damping block position regulator is made up of connecting rod 22 and regulating lever 18, connecting rod 22 is through the strip through-hole 10 bottom groove 7, the middle part of the two ends of connecting rod 22 and two slip damping blocks 9 is fixed, regulating lever 18 has one end of screw thread 21 through the screw 29 in the middle part of connecting rod 22 and is arranged on the bearing 20 at the two ends of strip through-hole 10 axis, and the other end of regulating lever 18 extend in the central through bore 19 of piston rod 13; The longitudinal plane shape of clutch release slave cylinder 5 inner chamber be made up of non-magnet_conductible material is identical with the longitudinal plane shape of piston 6, the longitudinal plane area of clutch release slave cylinder 5 inner chamber is greater than the longitudinal plane area of piston 6, leaves magnetic flow liquid and flow gap 8 between piston 6 periphery wall and clutch release slave cylinder 5 inner circle wall; Be fixed with end cap 14 and end cap 28 at the two ends of clutch release slave cylinder 5, wherein: end cap 28 has center hole, seal arrangement 11 and sliding bearing 12 be installed in center hole; Piston rod 13 has central through bore 19, and one end of piston rod 13 and piston only 6 are fixed, and the other end of piston rod 13 is stretched out in clutch release slave cylinder 5 by the seal arrangement 11 of clutch release slave cylinder 5 one end and sliding bearing 12; The compensation air bag 2 being filled with certain air pressure 3 is fixed on the bottom in clutch release slave cylinder 5; External electromagnet solid 1 fixes on the shell of clutch release slave cylinder 5; Piston 6 is arranged in clutch release slave cylinder 5, is filled with magnetic flow liquid 4 in clutch release slave cylinder 5, controls power supply 25 and is connected with external electromagnet 1 by lead-in wire.
Crack piston single outstretch pole magnetorheological damper working condition is such: see Fig. 1 to Fig. 6, when crack of the present invention piston single outstretch pole magnetorheological damper slip damping block 9 be in home position time (referring to: Fig. 1 and Fig. 2), crack piston single outstretch pole magnetorheological damper, can adjust the damping force that it exports by controlling power supply 25, the single outstretch pole magnetorheological damper working condition namely with common is similar in good time.
When two pieces of slip damping blocks 9 on regulating lever 18 regulating piston 6 by adjustment slip damping block position regulator are when the diverse location of piston 6 upper trapezoid groove 7, the passage 26(that can form the flowing of four magnetic flow liquids in the axis of piston 6 periphery wall (that is: two plane P of piston) refers to: Fig. 4 and Fig. 5), therefore, by (gap) passage 26 width that adjustment piston 6 slides between damping block 9 and trapezoidal groove 7, magnetic flow liquid 4 in clutch release slave cylinder 5 not only can be flowed along the gap 8 between piston 6 periphery wall and clutch release slave cylinder 5 inner circle wall, but also can be flowed by the passage 26 piston 6 slided between damping block 9 and trapezoidal groove 7, thereby increase the flow channel of magnetic flow liquid 4 in clutch release slave cylinder 5, because piston only 6 and slip damping block 9 are made up of permeability magnetic material, so, the intensity of the electromagnetic field in the gap 8 between piston 6 periphery wall and clutch release slave cylinder 5 inner circle wall is maximum, make the effect that the magnetic flow liquid 4 along the flowing of piston 6 periphery wall axial passage 26 also will be subject to external electromagnet 1 and generates an electromagnetic field, the adjustment range of the work damping force of crack piston single outstretch pole magnetorheological damper is expanded.
Claims (1)
1. a crack piston single outstretch pole magnetorheological damper, it comprises piston, piston rod, clutch release slave cylinder, compensation air bag and external electromagnet; It is characterized in that: described piston is made up of piston only, two pieces of slip damping blocks, slip damping block position regulators, piston only is cuboid shape, two minor faces of piston only longitudinal plane are circular arc, axially there is being the groove of two symmetrical through piston onlies on two long limits of piston only longitudinal plane, groove is isosceles trapezoid in the axis of piston only, has the strip through-hole of an axis in the bottom of two grooves; Two pieces of slip damping blocks are arranged in two grooves respectively, the shape of slip damping block is identical with the shape of groove, the thickness of slip damping block is identical with the degree of depth of groove, the width on the narrow limit of slip damping block is equal with the width on the narrow limit of groove, and the length of slip damping block is less than the length of groove; Two pieces of slip damping blocks are fixed on slip damping block position regulator, and slip damping block position regulator is arranged in the strip through-hole of two bottom portion of groove; The longitudinal plane shape of described clutch release slave cylinder inner chamber is identical with the longitudinal plane shape of piston, and the longitudinal plane area of clutch release slave cylinder inner chamber is greater than the longitudinal plane area of piston, leaves magnetic flow liquid and flow gap between piston outer periphery wall and clutch release slave cylinder inner circle wall; Be fixed with two end caps at the two ends of clutch release slave cylinder, one of them end cap has center hole, is provided with seal arrangement and sliding bearing in center hole; Described piston rod has central through bore, and one end and the piston only of piston rod are fixed, and the other end of piston rod is stretched out in clutch release slave cylinder by the seal arrangement of clutch release slave cylinder one end and sliding bearing; Described compensation air bag is fixed on the bottom in clutch release slave cylinder; Described external electromagnet is fixed on the shell of clutch release slave cylinder; Described piston is arranged in clutch release slave cylinder, in clutch release slave cylinder, be filled with magnetic flow liquid; Described slip damping block position regulator is made up of connecting rod and regulating lever, connecting rod is through the strip through-hole of bottom portion of groove, the middle part of the two ends of connecting rod and two slip damping blocks is fixed, the threaded one end of regulating lever is passed the screw in the middle part of connecting rod and is arranged on the two ends of strip through-hole axis, and the other end of regulating lever extend in the central through bore of piston rod; Described piston and slip damping block adopt permeability magnetic material to form; Described clutch release slave cylinder is made up of non-magnet_conductible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310015057.4A CN103062275B (en) | 2013-01-16 | 2013-01-16 | Gapped magneto-rheological damper with single piston rod out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310015057.4A CN103062275B (en) | 2013-01-16 | 2013-01-16 | Gapped magneto-rheological damper with single piston rod out |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103062275A CN103062275A (en) | 2013-04-24 |
| CN103062275B true CN103062275B (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310015057.4A Expired - Fee Related CN103062275B (en) | 2013-01-16 | 2013-01-16 | Gapped magneto-rheological damper with single piston rod out |
Country Status (1)
| Country | Link |
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| CN (1) | CN103062275B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644240B (en) * | 2013-09-06 | 2015-10-14 | 重庆材料研究院有限公司 | Magneto-rheological bicyclic-film damper |
| CN116025660A (en) * | 2023-03-10 | 2023-04-28 | 重庆大学 | Passive mechanical continuous adjustable magneto-rheological damper |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6336535B1 (en) * | 2001-03-14 | 2002-01-08 | Delphi Technologies, Inc. | Magneto-rheological damper with dual flux ring spacer |
| CN1603651A (en) * | 2004-05-28 | 2005-04-06 | 重庆大学 | Magnetorheological suspensions damping device for automobile suspension system |
| CN101865239A (en) * | 2010-06-02 | 2010-10-20 | 谭晓婧 | Single outstretch pole magneto-rheological damper with annular piston |
| CN102297230A (en) * | 2011-08-19 | 2011-12-28 | 谢宁 | Double-outstretch pole plate magneto-rheological damper |
| CN203130890U (en) * | 2013-01-16 | 2013-08-14 | 谢宁 | Fracture piston single rod magnetorheological damper |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8051961B2 (en) * | 2007-10-30 | 2011-11-08 | Honda Motor Co., Ltd. | Magneto-rheological damper |
| KR101219177B1 (en) * | 2011-04-29 | 2013-01-09 | 한국과학기술원 | Damping Device with Adjustable Damping Force |
-
2013
- 2013-01-16 CN CN201310015057.4A patent/CN103062275B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6336535B1 (en) * | 2001-03-14 | 2002-01-08 | Delphi Technologies, Inc. | Magneto-rheological damper with dual flux ring spacer |
| CN1603651A (en) * | 2004-05-28 | 2005-04-06 | 重庆大学 | Magnetorheological suspensions damping device for automobile suspension system |
| CN101865239A (en) * | 2010-06-02 | 2010-10-20 | 谭晓婧 | Single outstretch pole magneto-rheological damper with annular piston |
| CN102297230A (en) * | 2011-08-19 | 2011-12-28 | 谢宁 | Double-outstretch pole plate magneto-rheological damper |
| CN203130890U (en) * | 2013-01-16 | 2013-08-14 | 谢宁 | Fracture piston single rod magnetorheological damper |
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| CN103062275A (en) | 2013-04-24 |
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