WO2019011043A1 - Amortisseur magnéto-rhéologique à bobines externes - Google Patents

Amortisseur magnéto-rhéologique à bobines externes Download PDF

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Publication number
WO2019011043A1
WO2019011043A1 PCT/CN2018/084835 CN2018084835W WO2019011043A1 WO 2019011043 A1 WO2019011043 A1 WO 2019011043A1 CN 2018084835 W CN2018084835 W CN 2018084835W WO 2019011043 A1 WO2019011043 A1 WO 2019011043A1
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WO
WIPO (PCT)
Prior art keywords
piston
sleeve
hydraulic cylinder
coil
damper
Prior art date
Application number
PCT/CN2018/084835
Other languages
English (en)
Chinese (zh)
Inventor
陈步高
张栋梁
曹福顺
Original Assignee
盐城市步高汽配制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 盐城市步高汽配制造有限公司 filed Critical 盐城市步高汽配制造有限公司
Publication of WO2019011043A1 publication Critical patent/WO2019011043A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
    • F16F9/535—Magnetorheological [MR] fluid dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/42—Cooling arrangements

Definitions

  • the invention belongs to the technical field of automobile vibration reduction, and particularly relates to a magnetorheological damper with an external coil.
  • the magnetorheological damper is widely used in the suspension system of automobile suspension.
  • the magnetorheological damper piston structure described in the patent CN201010621508.5 represents the structural characteristics of the existing magnetorheological damper, that is, the piston is circumferentially slotted to arrange the coil. A long hole is formed inside the piston rod to lead the wire.
  • the scheme is compact in structure, but the piston structure is complicated and the processing is difficult, especially the piston rod, the processing cost of the long hole is higher, and there are more restrictions on the structural optimization.
  • the damper converts the vibration energy into heat energy dissipation through damping, but the temperature rise will seriously affect the performance of the damper. Since the coil generates a magnetic field, the coil itself generates heat, and the coil is disposed inside the hydraulic cylinder, and the generated heat further aggravates the temperature rise in the damper and reduces the performance of the damper.
  • the present invention provides a magneto-rheological damper of an external coil, which arranges the coil on the outside of the hydraulic cylinder body, and through the ingenious structural design, not only the magnetorheological damper is achieved. It has the performance requirements, and has the advantages of simple structure, convenient heat dissipation, low cost and easy maintenance.
  • a magneto-rheological damper for an external coil comprising: a hydraulic cylinder body, a floating piston, a piston, a piston rod, a sealing cover, a coil, an outer cylinder, a dust seal, an outer end cover, a bottom limit member, a nut And a sleeve connected to the piston rod, located inside the hydraulic cylinder body, the piston rod extends through the sealing cover to the outside of the hydraulic cylinder, and the bottom end of the outer cylinder is fixed at the bottom limit by the nut
  • the bottom limiting member is fixedly connected to the outer cylinder tube
  • the hydraulic cylinder body is sleeved outside, and the sleeve is arranged with a double-stage coil
  • the piston is located at a central position of the double-stage coil
  • the piston A gap is provided between the inner wall of the hydraulic cylinder, the sleeve is fixed inside the outer cylinder, and a dustproof ring is mounted on the upper and lower ends of the sleeve, and
  • the piston, the piston rod, the sleeve, the coil, the outer cylinder, and the like are relatively stationary, and the piston in the horizontal direction is located at the center of the two-stage coil.
  • the outer part of the sleeve is a smooth cylindrical surface, and the interior includes, in order from top to bottom, a first dust ring groove, a first coil groove, a guide ring, a second coil groove, and a second dust ring groove.
  • the sleeve has the functions of the coil, the dust ring installation and the movement guide of the hydraulic cylinder.
  • the inner guide ring of the sleeve is provided with an axial groove for arranging connecting wires.
  • the outer end cap has a function of positioning the sleeve, and a groove formed with the sleeve after installation is used to mount the dust seal.
  • the inner cylinder has a large inner diameter at the upper end, a small inner diameter at the lower end, an inner diameter of the upper end is the same as an outer diameter of the sleeve, and a change in inner diameter is a boss structure, and the sleeve is fixed in cooperation with the outer end cover.
  • the built-in coil is changed to external, which simplifies the internal structure of the magnetorheological damper, reduces the difficulty of processing and assembly, and saves processing time and processing cost.
  • the coil is external, when the coil is faulty, it can be repaired, it will not affect the internal structure of the damper hydraulic cylinder, and will not pollute the magnetorheological fluid.
  • Figure 1 is a schematic view of the structure of the present invention.
  • Figure 2 is a partial cross-sectional view of the sleeve of the present invention.
  • Figure 3 is a structural view of the sleeve of the present invention.
  • FIG. 4 is a schematic view showing the structure of a magnetic field of the present invention.
  • a magnetorheological damper for an external coil as shown in FIG. 1 includes: a hydraulic cylinder 1, a floating piston 2, a piston 7, a piston rod 9, a sealing cover 10, a coil 5, an outer cylinder 11, and an anti-defense Dust ring 4, outer end cap 3, bottom stop member 13, nut 12 and sleeve 6.
  • the floating piston 2 functions to separate the compensation air chamber 14 from the hydraulic pressure chamber 15.
  • the piston 7 is connected to the piston rod 9 and is located inside the hydraulic cylinder body 1.
  • the piston rod 9 extends through the sealing cover 10 to the outside of the hydraulic cylinder block 1, and the bottom end
  • the nut 12 is fixed to the bottom stopper 13
  • the bottom stopper 13 is fixedly connected to the outer cylinder 11 .
  • the outer side of the hydraulic cylinder block 1 is sleeved with a double-stage coil 5, and the sleeve 6 is fixed inside the outer cylinder tube 11 by the cooperation of the outer cylinder tube 11 and the outer end cover 3, and the two ends are installed with dustproof Circle 4.
  • the piston 7, the piston rod 9, the sleeve 6, the coil 5, the outer cylinder 11 and the like are relatively stationary, and the piston 7 in the horizontal direction is located at the center of the two coils 5, and the piston and the inner wall of the cylinder A gap 18 is provided therebetween, and the surface of the coil 5 and the axial groove 602 are coated with a protective layer for protecting the wire 16 and the coil 5.
  • the dust seal 4 is disposed at both ends of the sleeve 6, and functions as a dustproof seal to prevent dust and particles from entering the sleeve 6 to increase friction between the guide ring 605 and the hydraulic cylinder block 1.
  • the outer portion of the sleeve 6 is a smooth cylindrical surface, and the interior includes, in order from top to bottom, a first dust ring groove 600, a first coil groove 601, a guide ring 605, and a second coil groove 603. a second dust ring groove 604, two coils are disposed in the first coil groove 601 and the second coil groove 603, and the dust seal 4 is mounted on the first dust ring groove 600 and the second dustproof In the ring groove 604, the sleeve 6 has the function of the installation position of the coil 5 and the dust-proof ring 4 and the movement guide of the hydraulic cylinder tube 1.
  • the sleeve 6 has an axial groove 602 therein for arranging the connection and the lead wire. 16.
  • the outer end cap 3 has the function of the positioning sleeve 6, and after installation, forms a first dust ring groove 600 with the sleeve 6 for mounting the dust seal 4.
  • the outer cylinder 11 has a large inner diameter at the upper end, a small inner diameter at the lower end, and an inner diameter at the upper end.
  • the outer diameter of the sleeve 6 is the same, and the inner diameter changes to a boss structure, and the outer end cover 3 is engaged with the fixing sleeve 6.
  • FIG. 4 is a schematic view showing the structure of the magnetic field of the damper magnetic field when the magnetorheological damper coil 5 is in operation.
  • the two coils 5 are connected in series but reversely wound, and the generated magnetic field forms a magnetic field structure as shown in FIG. 4 under the principle of repulsiveness of the same pole, and the magnetic field passes horizontally from the two coils 5 through the hydraulic cylinder 1 and to the piston 7
  • a damper passage 17 is formed perpendicular to the damper passage 17 between the hydraulic cylinder block 1, and a virtual damper passage 17 is formed between the inner wall of the cylinder and the gap 18.
  • the hydraulic cylinder 1 When the magnetorheological damper is in operation, the hydraulic cylinder 1 reciprocates up and down with respect to the piston 7 and the sleeve 6 under the action of an external force, and compresses the magnetorheological fluid through the damper passage 17 to cause the damper to generate a damping force. .
  • the magnitude of the current in the coil 5 By controlling the magnitude of the current in the coil 5 to control the magnetic field strength through the damper channel 17, thereby changing the rheological characteristics of the magnetorheological fluid in the damper channel 17, thereby changing the damping force of the damper, thereby achieving intelligent control of the damping force. purpose.
  • the invention changes the original built-in coil into an external coil, simplifies the internal structure of the magnetorheological damper, reduces the difficulty of processing and assembly, saves processing time and processing cost, and is convenient for maintenance and does not pollute the magnetic current.
  • the external coil is beneficial to the loss of heat of the coil, and does not heat the magnetorheological fluid, which is beneficial to the long-term stability of the heat dissipation and maintenance performance of the damper and prolongs the service life.
  • the technical means disclosed in the solution of the present invention is not limited to the technical means disclosed in the above embodiments, and includes a technical solution composed of any combination of the above technical features.

Abstract

L'invention concerne un amortisseur magnéto-rhéologique à bobines externes, comprenant un corps de cylindre hydraulique (1), un piston flottant (2), un piston (7), une tige de piston (9), un couvercle d'étanchéité (10), des bobines (5), un corps de cylindre externe (11), des bagues anti-poussière (4), un couvercle d'extrémité externe (3), un élément de limitation de fond (13), un écrou (12) et un manchon (6). Le piston flottant (2) est utilisé pour séparer une chambre à air de compensation (14) et une chambre hydraulique (15). Le piston (7) est relié à la tige de piston (9), l'extrémité inférieure est fixée à l'élément de limitation de fond (13) au moyen de l'écrou (12), et l'élément de limitation de fond (13) est relié à demeure au corps de cylindre externe (11). Le manchon (6) est emmanché à l'extérieur du corps de cylindre hydraulique (1), les bobines à deux étages sont disposées dans le manchon, les bagues anti-poussière (4) sont montées aux deux extrémités du manchon, et le piston est situé au centre des bobines à deux étages. Lorsque l'amortisseur fonctionne, le corps de cylindre hydraulique effectue un mouvement de va-et-vient par rapport au corps de cylindre externe et au piston, et l'intensité du champ magnétique d'un canal d'amortissement entre le piston et le corps de cylindre hydraulique peut être commandée par commande de l'intensité du courant des bobines externes, ce qui permet de modifier les propriétés du fluide magnéto-rhéologique et, donc, de commander l'intensité de la force d'amortissement. L'amortisseur est facile à monter et de structure simple, présente des coûts de production et de maintenance réduits et se caractérise par une longue durée de vie.
PCT/CN2018/084835 2017-07-13 2018-04-27 Amortisseur magnéto-rhéologique à bobines externes WO2019011043A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710569483.0 2017-07-13
CN201710569483.0A CN107228153A (zh) 2017-07-13 2017-07-13 一种外置线圈的磁流变减振器

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WO2019011043A1 true WO2019011043A1 (fr) 2019-01-17

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207161606U (zh) * 2017-07-13 2018-03-30 盐城市步高汽配制造有限公司 一种外置线圈的磁流变减振器
CN107228153A (zh) * 2017-07-13 2017-10-03 盐城市步高汽配制造有限公司 一种外置线圈的磁流变减振器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6382369B1 (en) * 2001-03-14 2002-05-07 Delphi Technologies, Inc. Magneto-rheological fluid damper with an external coil
US6497309B1 (en) * 2001-08-13 2002-12-24 Delphi Technologies, Inc. Magneto-rheological damper with an external coil
CN101319699A (zh) * 2008-07-11 2008-12-10 重庆大学 具有环状外置磁场发生器的磁流变液减振器
CN102155515A (zh) * 2011-04-19 2011-08-17 谭和平 外置电磁铁磁流变阻尼器
CN103322114A (zh) * 2013-05-28 2013-09-25 吉林大学 螺旋阀孔式磁流变减振器
CN104963983A (zh) * 2015-05-14 2015-10-07 山东理工大学 一种线圈外包式磁流变液减震器
CN107228153A (zh) * 2017-07-13 2017-10-03 盐城市步高汽配制造有限公司 一种外置线圈的磁流变减振器
CN207161606U (zh) * 2017-07-13 2018-03-30 盐城市步高汽配制造有限公司 一种外置线圈的磁流变减振器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10161972B4 (de) * 2001-12-17 2010-09-09 Maurer Söhne Gmbh & Co. Kg Energieabsorptionsvorrichtung
CN102913587B (zh) * 2012-10-25 2014-06-18 中国民航大学 磁流变减震器
CN104315073B (zh) * 2014-08-25 2017-01-18 合肥工业大学 基于磁流变阻尼器和弹簧的变刚度变阻尼减振器
CN104791410B (zh) * 2015-04-29 2016-09-07 柳州孔辉汽车科技有限公司 一种磁流变液减振器
CN205859036U (zh) * 2016-08-09 2017-01-04 华东交通大学 一种采用外置式弹簧进行自动保护的磁流变阻尼器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6382369B1 (en) * 2001-03-14 2002-05-07 Delphi Technologies, Inc. Magneto-rheological fluid damper with an external coil
US6497309B1 (en) * 2001-08-13 2002-12-24 Delphi Technologies, Inc. Magneto-rheological damper with an external coil
CN101319699A (zh) * 2008-07-11 2008-12-10 重庆大学 具有环状外置磁场发生器的磁流变液减振器
CN102155515A (zh) * 2011-04-19 2011-08-17 谭和平 外置电磁铁磁流变阻尼器
CN103322114A (zh) * 2013-05-28 2013-09-25 吉林大学 螺旋阀孔式磁流变减振器
CN104963983A (zh) * 2015-05-14 2015-10-07 山东理工大学 一种线圈外包式磁流变液减震器
CN107228153A (zh) * 2017-07-13 2017-10-03 盐城市步高汽配制造有限公司 一种外置线圈的磁流变减振器
CN207161606U (zh) * 2017-07-13 2018-03-30 盐城市步高汽配制造有限公司 一种外置线圈的磁流变减振器

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