CN207161607U - A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil - Google Patents

A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil Download PDF

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Publication number
CN207161607U
CN207161607U CN201720847112.XU CN201720847112U CN207161607U CN 207161607 U CN207161607 U CN 207161607U CN 201720847112 U CN201720847112 U CN 201720847112U CN 207161607 U CN207161607 U CN 207161607U
Authority
CN
China
Prior art keywords
coil
end cap
outside
piston
inner cylinder
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN201720847112.XU
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Chinese (zh)
Inventor
陈步高
王乐乐
曹福顺
陈永青
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YANCHENG BUGAO AUTOMOBILE FITTINGS MANUFACTURING Co Ltd
Original Assignee
YANCHENG BUGAO AUTOMOBILE FITTINGS MANUFACTURING Co Ltd
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 YANCHENG BUGAO AUTOMOBILE FITTINGS MANUFACTURING Co Ltd filed Critical YANCHENG BUGAO AUTOMOBILE FITTINGS MANUFACTURING Co Ltd
Priority to CN201720847112.XU priority Critical patent/CN207161607U/en
Application granted granted Critical
Publication of CN207161607U publication Critical patent/CN207161607U/en
Priority to PCT/CN2018/084831 priority patent/WO2019011041A1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/53Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The utility model discloses a kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil,Including piston rod,Piston,Inner cylinder tube,Outer cylinder,End cap,Dust ring,Inside coil,External coil,Coil protective layer,Compensate air bag,Bottom keeper,Nut,The piston rod is fastenedly connected with piston,The piston is located inside the inner cylinder tube,The inner cylinder tube is fixed by end cap and bottom keeper,The bottom keeper is fastenedly connected with outer cylinder,Centre has through hole to be extended to for the compensation air bag valve port outside shock absorber,Inner cylinder tube bottom is provided with compensation air bag,The end cap is fastenedly connected with the outer cylinder,The Inside coil is wrapped on the end cap with the external coil,The dust ring is arranged at the top of the end cap endoporus,End recesses are provided with below end cap,The utility model is simple in construction,Processing and fabricating is convenient,Cost is low,Resistance of shock absorber can be adjusted,And interior loop has sealing function,Good seal performance.

Description

A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil
Technical field
The present invention relates to Vehicle damper technical field, relates generally to a kind of double-cylinder type magneto-rheological vibration damping of inside and outside twin coil Device.
Technical background
With the continuous development and progress of economic society, requirement of the consumer for vehicle also more and more higher, whether multiply With car or commercial car, in addition to meeting original performance requirement, consumer also gets over to driving with the comfortableness requirement taken Come higher.Magneto-rheological vibration damper has fast response time, damping force power adjustment model as a kind of new intelligent shock absorber Big, low power consumption and other advantages are enclosed, applying can be with the vibration between effective attenuation wheel and road surface on vehicle in vehicle vibration reduction system Transmission, improve vehicle ride and the comfortableness driven, therefore the application in ride-control field is more and more extensive.
But the application of existing magneto-rheological vibration damper is also limited to high-end vehicles because difficulty of processing limits with cost, Application on middle-end vehicle is also rare, not to mention the wider array of low side car of audient.Magneto-rheological vibration damper difficulty of processing The reason for big, is that first, existing magneto-rheological vibration damper is circumferentially slotted to arrange coil, although so coil using piston more It is simple in construction, but therefore coil is but arranged in inside shock absorber cylinder barrel, moved with the motion of piston, in order to by winding wire Draw, it is necessary to which piston rod central aperture, processing cost is higher.Secondly because the gas pressure in compensation air chamber is higher, subtract The pressure to shake inside device is larger, and this requirement to piston rod and the dynamic sealing performance of port is higher, it is necessary to using multistage dense seal It is used cooperatively to reduce pressure differential step by step to realize sealing effectiveness, complicated, process and assemble difficulty is higher.It is finally, because single Cylinder type damper lateral force ability is relatively low, it is necessary to carry out corresponding structure improvement to suspension system or filled using slide column type monotubular Gas damper structure so that cost further improves.Therefore, new magneto-rheological vibration damper is researched and developed, reduces cost, is improved Shock absorber performance, the popularization and application to promoting magneto-rheological vibration damper, it is significant to improve auto industry level.
The content of the invention
In order to overcome above mentioned problem, the present invention proposes a kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil.This subtracts The device that shakes is simple in construction, difficulty of processing bottom, good seal performance, has preferable research and extension value.
The present invention in order to solve its technical problem used by technical scheme be:
A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil, mainly including piston rod, piston, inner cylinder tube, outer cylinder, End cap, dust ring, internal O-ring, outside O-ring, Inside coil, external coil, coil protective layer, compensation air bag, bottom are fixed Position part, nut, the piston rod are connected with piston, and piston is located inside inner cylinder tube, is slidingly sealed with inner cylinder tube, piston rod passes through Through hole among end cap is extended to outside shock absorber, and inner cylinder tube is fixed by end cap and bottom keeper, bottom keeper with it is outer Cylinder barrel is fastenedly connected, and centre has through hole to be extended to for compensating air bag valve port outside shock absorber, and end cap is fastenedly connected with outer cylinder, Sealed, be slidingly sealed with piston rod by internal O-ring with Inside coil, Inside coil and external coil by outside O-ring It is wrapped on end cap, dust ring is arranged at the top of end cap endoporus, and end recesses, shock absorber inner cylinder tube bottom peace are provided with below end cap Equipped with compensation air bag.
End cap is inside and outside in addition to having for the groove of mounting O-shaped rings and dust ring, also has and is used to wind inner-outer coil Coil recess.Inner-outer coil is wrapped in same groove.Inside coil is wrapped in inside end cap groove, is mainly used in piston rod Dynamic sealing between end cap, external coil are wrapped in outside Inside coil, primarily serve the effect of regulation absorber damping force.It is and interior Exterior loop winding direction is identical, and current direction is identical, and magnetic direction is identical caused by guarantee.
No matter whether shock absorber is in running order, and Inside coil causes piston all in "on" position, caused magnetic field Magnetic flow liquid between bar and end cap is in semi-solid state, prevents magnetic flow liquid from leaking, plays a part of sealing.
When magneto-rheological vibration damper works, piston pumps in the presence of external force inside inner cylinder tube, because Be slidingly sealed between piston and inner cylinder tube, magnetic flow liquid in the presence of piston can only by the grooves of inner cylinder tube upper and lower ends with it is interior Gap between outer cylinder circulates between upper and lower sap cavity, produces viscous damping power, when needing that damping force is adjusted, outside Portion's coil electricity produces magnetic field, and the new magnetic field of stroke is merged in magnetic field with magnetic field caused by Inside coil, and is pushed up between interior outer cylinder Part is held, magnetic field makes magnetic flow liquid characteristic change therewith, produce shearing damp power, realize resistance of shock absorber perpendicular through gap The effect of power regulation.
The beneficial effects of the invention are as follows:
1st, coil is arranged on end cap rather than on piston, avoids the complicated processing to piston and piston rod, structure letter It is single, reduce shock absorber process and assemble cost.
2nd, coil is divided into Inside coil and external coil, and Inside coil can realize sealing function, improve shock absorber Sealing effectiveness.
3rd, inner-outer coil winding direction is identical so that Inside coil can be played while with sealing function as auxiliary External coil adjusts the function in magnetic field, and energy consumption is relatively low.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is part-structure sectional view of the present invention.
Fig. 3 is end cover structure schematic diagram of the present invention.
Fig. 4 is magnetic field schematic diagram under external coil off working state of the present invention.
Fig. 5 is magnetic field schematic diagram under external coil working condition of the present invention.
In figure:1 --- piston rod, 2 --- dust ring 3 --- interior O-rings, 4 --- end cap, 5 --- outer O-ring, 6 --- Inside coil, 7 --- external coil, 8 --- coil protective layer, 9 --- outer cylinder, 10 --- inner cylinder tube, 11 --- piston, 12 --- compensation air bag, 13 --- bottom keeper, 14 --- nut, 15 --- upper sap cavity, 16 --- lower sap cavity, 17 --- end Portion's groove, 41 --- dust ring groove, 42 --- interior O-ring groove, 43 --- outer O-ring groove, 44 --- coil recess, 45 --- limited impression.
Embodiment
The present invention is expanded on further with reference to the accompanying drawings and detailed description, it should be understood that following embodiments are only used In the present invention but it is not used in limitation the scope of the present invention.It should be noted that the word " preceding ", " " rear " used below in description, "left", "right", "up" and "down" refer to the direction represented in accompanying drawing.
A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil as illustrated in fig. 1 and 2, mainly includes piston rod 1, piston 11st, inner cylinder tube 10, outer cylinder 9, end cap 4, dust ring 2, internal O-ring 3, outside O-ring 5, Inside coil 6, external coil 7, Coil protective layer 8, compensation air bag 12, bottom keeper 13, nut 14 etc..Piston rod 1 is fastenedly connected with piston 11,11, piston Inside inner cylinder tube 10, it is slidingly sealed with inner cylinder tube 10, piston rod 1 is extended to outside shock absorber by the through hole among end cap 4, Inner cylinder tube 10 is fixed by end cap 4 and bottom keeper 13, and bottom keeper 13 is fastenedly connected with outer cylinder 9, and there is through hole centre Being extended to for compensating the valve port of air bag 12 outside shock absorber, end cap 4 is fastenedly connected with outer cylinder 9, is sealed by outer O-ring 5, with Piston rod 1 is slidingly sealed by interior O-ring 3 and Inside coil 6, and Inside coil 6 is wrapped on end cap 4 with external coil 7, dust-proof Circle 2 is arranged at the top of the endoporus of end cap 4, is provided with end recesses below end cap, shock absorber inner cylinder tube bottom is provided with compensation air bag.
As shown in figure 3, end cap 4 is inside and outside except having for installing the interior O-ring groove 42 of interior O-ring 3 and installation dust ring 2 Dust ring groove 41 outside, also have and be used to wind the coil recess 44 of inner-outer coil 6,7, inner-outer coil 6,7 is wrapped in same In individual coil recess 44, Inside coil 6 is wrapped in inside coil recess 44, is mainly used in dynamic close between piston rod 1 and end cap 4 Envelope.External coil 7 is wrapped in outside Inside coil 6, primarily serves the effect of regulation absorber damping force.And inner-outer coil 6,7 twines Identical around direction, current direction is identical, and magnetic direction is identical caused by guarantee.
As shown in Fig. 4 external coil 7 does not work, magnetic field schematic diagram when Inside coil 6 turns on.No matter shock absorber is No in running order, Inside coil causes magnetorheological between piston rod 1 and end cap 4 all in "on" position, caused magnetic field Liquid is in semi-solid state, prevents magnetic flow liquid from leaking, plays a part of sealing.
When magneto-rheological vibration damper works, piston 11 pumps in the presence of external force inside inner cylinder tube 10, Because being slidingly sealed between piston 11 and inner cylinder tube 10, magnetic flow liquid can only be by inner cylinder tube two about 10 in the presence of piston 11 Gap between the end recesses 17 and interior outer cylinder 9,10 at end circulates between upper and lower sap cavity, produces viscous damping power.When need When damping force being adjusted, external coil 7, which is powered, produces magnetic field, and magnetic field caused by external coil 7 produces with Inside coil 6 Magnetic field fusion row into new magnetic field, as shown in figure 5, in interior 9,10 tip portions of outer cylinder, magnetic field vertically leads to magnetic field structure Gap is crossed, magnetic flow liquid characteristic is changed therewith, produces shearing damp power, realizes the effect of absorber damping force regulation.
The purpose of the breach of end recesses 17 is intended for magnetic flow liquid passage, limited impression 45 be it is annular, it is interior Cylinder barrel is just mounted in groove 45, plays positioning action, and the breach of end recesses 17 is exactly to match somebody with somebody in limited impression 45 and inner cylinder tube At conjunction, a breach will be opened on inner cylinder tube.
A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil of the present invention, coil be arranged on end cap rather than On piston, the complicated processing to piston and piston rod is avoided, it is simple in construction, reduce shock absorber process and assemble cost;Coil It is divided into Inside coil 6 and external coil 7, Inside coil 6 can realize sealing function, improve the sealing effectiveness of shock absorber;Interior, Exterior loop winding direction is identical so that Inside coil can be played while with sealing function as auxiliary external coil regulation The function in magnetic field, energy consumption are relatively low.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, in addition to Formed technical scheme is combined by above technical characteristic.

Claims (3)

  1. A kind of 1. double-cylinder type magneto-rheological vibration damper of inside and outside twin coil, it is characterised in that:Including piston rod, piston, inner cylinder tube, outer Cylinder barrel, end cap, dust ring, internal O-ring, outside O-ring, Inside coil, external coil, coil protective layer, compensation air bag, bottom Portion's keeper, nut, the piston rod are fastenedly connected with piston, and the piston is located inside the inner cylinder tube, are slided with inner cylinder tube Dynamic sealing, the piston rod are extended to outside shock absorber by the through hole among the end cap, and the inner cylinder tube passes through the end Lid is fixed with the bottom keeper, and the bottom keeper is fastenedly connected with the outer cylinder, and there is through hole centre for described Compensation air bag valve port is extended to outside shock absorber, and inner cylinder tube bottom is provided with compensation air bag, and the end cap and the outer cylinder are tight It is solidly connected, is sealed by the outside O-ring, is slided with the piston rod by the internal O-ring with the Inside coil Sealing, the Inside coil are wrapped on the end cap with the external coil, and the dust ring is arranged on the end cap endoporus Top, end cap lower section are provided with end recesses.
  2. A kind of 2. double-cylinder type magneto-rheological vibration damper of inside and outside twin coil according to claim 1, it is characterised in that:The end Coil recess is provided with lid, the inner-outer coil is wrapped in same groove, and Inside coil is wrapped in inside coil recess, outside Portion's coil is wrapped in outside Inside coil.
  3. A kind of 3. double-cylinder type magneto-rheological vibration damper of inside and outside twin coil according to claim 2, it is characterised in that:In described Portion's coil is identical with external coil wire winding direction.
CN201720847112.XU 2017-07-13 2017-07-13 A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil Expired - Fee Related CN207161607U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201720847112.XU CN207161607U (en) 2017-07-13 2017-07-13 A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil
PCT/CN2018/084831 WO2019011041A1 (en) 2017-07-13 2018-04-27 Dual cylinder magnetorheological damper having internal and external coils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720847112.XU CN207161607U (en) 2017-07-13 2017-07-13 A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil

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CN207161607U true CN207161607U (en) 2018-03-30

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WO (1) WO2019011041A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107314077A (en) * 2017-07-13 2017-11-03 盐城市步高汽配制造有限公司 A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil
WO2019011041A1 (en) * 2017-07-13 2019-01-17 盐城市步高汽配制造有限公司 Dual cylinder magnetorheological damper having internal and external coils

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59184007A (en) * 1983-03-31 1984-10-19 Nhk Spring Co Ltd Car suspender
US6497309B1 (en) * 2001-08-13 2002-12-24 Delphi Technologies, Inc. Magneto-rheological damper with an external coil
CN201786985U (en) * 2010-09-26 2011-04-06 华侨大学 Magneto-rheological damper with double-coil
CN104595412B (en) * 2015-01-08 2016-08-24 重庆材料研究院有限公司 Double-barrel structure magneto-rheological vibration damper based on flow pattern
CN204553671U (en) * 2015-04-20 2015-08-12 中国人民解放军装甲兵工程学院 Double barreled MR damper
CN105889397B (en) * 2016-05-26 2018-01-02 河南机电高等专科学校 A kind of single rod bitubular magneto-rheological damper with double-coil
CN207161607U (en) * 2017-07-13 2018-03-30 盐城市步高汽配制造有限公司 A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil
CN107314077B (en) * 2017-07-13 2023-01-24 盐城市步高汽配制造有限公司 Double-cylinder magneto-rheological damper with inner and outer double coils

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107314077A (en) * 2017-07-13 2017-11-03 盐城市步高汽配制造有限公司 A kind of double-cylinder type magneto-rheological vibration damper of inside and outside twin coil
WO2019011041A1 (en) * 2017-07-13 2019-01-17 盐城市步高汽配制造有限公司 Dual cylinder magnetorheological damper having internal and external coils
WO2019011040A1 (en) * 2017-07-13 2019-01-17 盐城市步高汽配制造有限公司 Double-cylinder magnetorheological damper having inner and outer double coils

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Granted publication date: 20180330