CN101839298B - Double-cylinder magneto-rheological damper - Google Patents

Double-cylinder magneto-rheological damper Download PDF

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Publication number
CN101839298B
CN101839298B CN2010100420866A CN201010042086A CN101839298B CN 101839298 B CN101839298 B CN 101839298B CN 2010100420866 A CN2010100420866 A CN 2010100420866A CN 201010042086 A CN201010042086 A CN 201010042086A CN 101839298 B CN101839298 B CN 101839298B
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China
Prior art keywords
piston
clutch release
release slave
cylinder
slave cylinder
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Expired - Fee Related
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CN2010100420866A
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Chinese (zh)
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CN101839298A (en
Inventor
谭和平
谢宁
刘强
谭晓婧
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Tan Xiaojing
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谭晓婧
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Priority to CN2010100420866A priority Critical patent/CN101839298B/en
Publication of CN101839298A publication Critical patent/CN101839298A/en
Application granted granted Critical
Publication of CN101839298B publication Critical patent/CN101839298B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a double-cylinder magneto-rheological damper which comprises two identical working cylinders, two identical pistons, a piston damping tube, a damping stick and a magnetic field generator, wherein the two identical pistons are respectively installed in the two identical working cylinders, one end of each working cylinder is sealed, the other end of each working cylinder is provided with a round hole which is communicated with the outside, and the inner circumference of the round hole is provided with a bearing and a sealing device; the end faces with holes of the two working cylinders are fixed in opposite directions through support plates; both ends of the piston damping tube respectively extend into the working cylinders to be fixed with the pistons through the bearings on the end faces of the two working cylinders and the seal structures; the working cylinders and the piston damping tube are filled with magneto-rheological liquid; the center of the piston damping tube is provided with a through hole the diameter of which is the same as that of the central hole of the piston, and the middle part of the piston damping tube is fixed with the damping stick; and the magnetic field generator is installed on the outer circumference of the middle of the piston damping tube, the outer circumference of the working circumference, or the outer circumference of the middle of the piston damping tube and the outer circumference of the working cylinder.

Description

Double-cylinder magneto-rheological damper
Technical field
The present invention relates to a kind of MR damper, be specifically related to a kind of double-cylinder magneto-rheological damper.
Background technique
Common single outstretch pole magnetorheological damper is the change in volume that in clutch release slave cylinder, takes place when compensating damper work through internal airbag; Two outstretch pole magnetorheological dampers then are the change in volume that in clutch release slave cylinder, takes place when compensating damper work through the piston rod that same outer diameter as is installed in the piston bilateral symmetry; Chinese patent ZL03218419.0; Disclosed MR damper then is the change in volume that in clutch release slave cylinder, takes place when adopting external means to compensate damper work; The present invention then adopts two identical pistons to connect through the piston damp tube and piston is put into two identical clutch release slave cylinders, when damper work, comes to compensate each other the change in volume that in clutch release slave cylinder separately, takes place through the diverse location of two pistons in clutch release slave cylinder.
Summary of the invention
The objective of the invention is to propose a kind of novel MR damper; That is: double-cylinder magneto-rheological damper; Double-cylinder magneto-rheological damper, it includes two identical clutch release slave cylinders, two identical pistons, piston damp tube, damper bar, support plate and magnetic field generator.The technological scheme that the present invention adopted is following:
The piston of two identical band central through bores of double-cylinder magneto-rheological damper is installed in respectively in two identical clutch release slave cylinders, the sealing of an end of clutch release slave cylinder, and the other end of clutch release slave cylinder has the circular hole with exterior, and bearing and seal arrangement are installed on the inner circumference of circular hole; The porose end face of two clutch release slave cylinders is fixed through support plate in opposite directions; There is the through hole with the same diameter of piston center hole at piston damp tube center; The middle part of piston damp tube is fixed with damper bar, the two ends of piston damp tube respectively the bearing through two clutch release slave cylinder end faces be connected with piston in sealing configuration puts in clutch release slave cylinder and fixing; In the central through bore of clutch release slave cylinder, piston damp tube and two-piston, be full of magnetic flow liquid; On the excircle of piston, have to have three at least along radially equally distributed positioning strip of outside piston week, the external diameter of piston positioning strip is less than the internal diameter of clutch release slave cylinder, and the effect of piston positioning strip is that piston can be remained on the central axis of clutch release slave cylinder when work; Magnetic field generator is installed on the excircle of piston damp tube middle part or clutch release slave cylinder or is installed on the excircle of piston damp tube middle part and clutch release slave cylinder, and the direction of the magnetic line of force that magnetic field generator produces is vertical with the flow direction of magnetic flow liquid.When the damper bar of double-cylinder magneto-rheological damper is driving piston damp tube and piston in clutch release slave cylinder when reciprocating; The reverse flow opposite with damper bar moving direction can take place in the magnetic flow liquid in the central through bore of clutch release slave cylinder, piston damp tube and two-piston; Be installed on the excircle of piston damp tube or clutch release slave cylinder through change or be installed in the magnetic intensity of the magnetic field generator output on the excircle of piston damp tube and clutch release slave cylinder; Make the viscosity-modifying of the magnetic flow liquid in clutch release slave cylinder or the piston damp tube, make the output damping force of double-cylinder magneto-rheological damper controlled.Compare with existing MR damper, the present invention is a kind of brand-new structural type, and it is simple in structure, and is easy to use.
Description of drawings
Through accompanying drawing the present invention is further described below:
Fig. 1 is the structural representation of a kind of embodiment of the present invention.
Fig. 2 is the sectional drawing at Fig. 1 piston damp tube place.
Fig. 3 is the sectional drawing (identical with it because of right clutch release slave cylinder, as here to be omitted) of Fig. 1 left side clutch release slave cylinder.
Fig. 4 is the structural representation of another embodiment of the invention.
Embodiment
Specify structure of the present invention below in conjunction with accompanying drawing:
Referring to Fig. 1, this is a kind of concrete structure of the present invention, and the physical dimension of left clutch release slave cylinder 2 and right clutch release slave cylinder 13, left piston 1 and right piston 14 is identical, and left clutch release slave cylinder 2 is fixing through support plate 6 with right clutch release slave cylinder 13; One end of the piston damp tube 7 that constitutes by non-magnet_conductible material from the bearing 5 of left clutch release slave cylinder 2 end faces be connected through screw thread with left piston 1 in seal arrangement 4 puts in left clutch release slave cylinder 2; The other end of piston damp tube 7 puts in the right clutch release slave cylinder 13 and right piston 14 is connected through screw thread from the bearing 11 of right clutch release slave cylinder 13 end faces and seal arrangement 12; Piston damp tube 7 the middle part be fixed with damper bar 9 and magnetic field generator 8, the mobile direction of magnetic flow liquid is vertical in the direction of the magnetic line of force that magnetic field generator 8 produces and the piston damp tube 7; Horn-like opening 19 is arranged at the two-piston bottom, so that magnetic flow liquid is mobile; Piston positioning strip 21 and 22 moves two-piston all the time on the central axis of clutch release slave cylinder; The output line of control power supply 20 links to each other with magnetic field generator 8.
Working principle of the present invention is such: when damper bar 9 drive piston damp tubes 7 move right; After a part of magnetic flow liquid on two clutch release slave cylinder inner carrier right sides receives the extruding of piston; Gap 15 through piston and clutch release slave cylinder and gap 17 flow to the left side of piston; And piston damp tube 7 withdraws from the actual volume increase that makes left clutch release slave cylinder 2 in when actual volume in the right clutch release slave cylinder is reduced in left clutch release slave cylinder 2; Therefore; Another part magnetic flow liquid enters in the left clutch release slave cylinder 2 through the central through bore 18 of right piston 14, the central through bore 10 of piston damp tube 7, the central through bore 16 of left piston 1 from right clutch release slave cylinder 13 under the extruding of piston; The electric current of adjustment control power supply 20 outputs; The magnetic intensity that magnetic field generator 8 is produced changes; Can change the viscosity of magnetic flow liquid in the piston damp tube 7; The damping force of the magnetic flow liquid that flows through piston damp tube 7 is changed, thereby make the damping force of double-cylinder magneto-rheological damper output controlled.When damper bar 9 drove piston damp tube 7 to left movement, situation was just in time opposite, repeats no more here.

Claims (5)

1. double-cylinder magneto-rheological damper; It includes piston, piston damp tube, damper bar, support plate and the magnetic field generator of two identical clutch release slave cylinders, two identical band central through bores; It is characterized in that: the piston of said two identical band central through bores is installed in respectively in two identical clutch release slave cylinders; The one end sealing of clutch release slave cylinder, the other end of clutch release slave cylinder has the circular hole with exterior, and bearing and seal arrangement are installed on the inner circumference of circular hole; The porose end face of two clutch release slave cylinders is fixing in opposite directions through support plate, the two ends of piston damp tube respectively the bearing through two clutch release slave cylinder end faces be connected with piston in seal arrangement puts in clutch release slave cylinder and fix; In the central through bore of clutch release slave cylinder, piston damp tube and piston, be full of magnetic flow liquid.
2. double-cylinder magneto-rheological damper as claimed in claim 1; It is characterized in that; Have three on the excircle of the piston of said two identical band central through bores at least along radially equally distributed piston positioning strip of outside piston week; The length of piston positioning strip is less than or equal to the length of piston, and the external diameter of piston positioning strip is less than the internal diameter of clutch release slave cylinder.
3. double-cylinder magneto-rheological damper as claimed in claim 1 is characterized in that, there is the through hole with the same diameter of central through bore of piston at said piston damp tube center, and the middle part of piston damp tube is fixed with damper bar.
4. double-cylinder magneto-rheological damper as claimed in claim 1 is characterized in that, said magnetic field generator is electromagnet or permanent magnet or electromagnet and permanent magnet.
5. double-cylinder magneto-rheological damper as claimed in claim 1 is characterized in that, said magnetic field generator be installed on the excircle at piston damp tube middle part or on the excircle of clutch release slave cylinder or on the excircle at piston damp tube middle part with the excircle of clutch release slave cylinder on.
CN2010100420866A 2010-01-19 2010-01-19 Double-cylinder magneto-rheological damper Expired - Fee Related CN101839298B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010100420866A CN101839298B (en) 2010-01-19 2010-01-19 Double-cylinder magneto-rheological damper

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Application Number Priority Date Filing Date Title
CN2010100420866A CN101839298B (en) 2010-01-19 2010-01-19 Double-cylinder magneto-rheological damper

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CN101839298A CN101839298A (en) 2010-09-22
CN101839298B true CN101839298B (en) 2012-01-04

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101968097B (en) * 2010-10-27 2012-10-24 游世辉 Magneto-rheological hydraulic rubber air spring
CN107030522B (en) * 2017-05-24 2019-02-01 西北工业大学 Magnetorheological damping supporting device towards complex thin-wall component processing vibration suppression
CN115324982B (en) * 2022-08-26 2024-03-26 中国人民解放军海军工程大学 Self-adaptive hydraulic silencing device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6446944B1 (en) * 2000-08-14 2002-09-10 General Kinetics Engineering Corporation Suspension strut
EP1394439A1 (en) * 2002-08-29 2004-03-03 Fludicon GmbH Shock absorbing system for cycles
CN2648174Y (en) * 2003-09-25 2004-10-13 欧进萍 Built-in air bag type double-rod fluid damper
CN1601139A (en) * 2003-09-25 2005-03-30 欧进萍 Internal air chamber type damper as a magnetic current variable flow body with dual out poles
CN2895877Y (en) * 2006-06-07 2007-05-02 东南大学 Composite magnetic-flow dampness variator
CN101070893A (en) * 2007-06-04 2007-11-14 湖南大学 Magnetic-fluid change type regulation-liquid column damper
CN200975034Y (en) * 2006-10-13 2007-11-14 北京工业大学 Double extending rod double cylinder electrical current changeable damper

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6446944B1 (en) * 2000-08-14 2002-09-10 General Kinetics Engineering Corporation Suspension strut
EP1394439A1 (en) * 2002-08-29 2004-03-03 Fludicon GmbH Shock absorbing system for cycles
CN2648174Y (en) * 2003-09-25 2004-10-13 欧进萍 Built-in air bag type double-rod fluid damper
CN1601139A (en) * 2003-09-25 2005-03-30 欧进萍 Internal air chamber type damper as a magnetic current variable flow body with dual out poles
CN2895877Y (en) * 2006-06-07 2007-05-02 东南大学 Composite magnetic-flow dampness variator
CN200975034Y (en) * 2006-10-13 2007-11-14 北京工业大学 Double extending rod double cylinder electrical current changeable damper
CN101070893A (en) * 2007-06-04 2007-11-14 湖南大学 Magnetic-fluid change type regulation-liquid column damper

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Address after: 400084 Dadukou District of Chongqing New Village No. 8 of No. 76

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