CN1888467A - Hydromagnetic variable liquid adjustable damper - Google Patents

Hydromagnetic variable liquid adjustable damper Download PDF

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Publication number
CN1888467A
CN1888467A CN 200610031978 CN200610031978A CN1888467A CN 1888467 A CN1888467 A CN 1888467A CN 200610031978 CN200610031978 CN 200610031978 CN 200610031978 A CN200610031978 A CN 200610031978A CN 1888467 A CN1888467 A CN 1888467A
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CN
China
Prior art keywords
hydraulic cylinder
magnetic
inductive block
oil hydraulic
plate
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Granted
Application number
CN 200610031978
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Chinese (zh)
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CN100368701C (en
Inventor
黄中华
刘少军
谢雅
杜斌
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Central South University
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Central South University
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Priority to CNB200610031978XA priority Critical patent/CN100368701C/en
Publication of CN1888467A publication Critical patent/CN1888467A/en
Application granted granted Critical
Publication of CN100368701C publication Critical patent/CN100368701C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A magnetic flowing liquid damper consists of a hydraulic cylinder, a two-position two-way magnetic valve and a magnetic flowing control valve. The hydraulic cylinder is a double-bar hydraulic cylinder, in which there is magnetic flowing liquid. The magnetic valve and the magnetic flowing control valve are mounted outside of the hydraulic cylinder and connected in parallel. Because of designing the damping channel of the magnetic flowing liquid outside of the hydraulic cylinder, the invention can change the output damping force of the damper by changing spools of different sizes and controlling the current of the field coil, and meanwhile also can change and maintain the field coil easily.

Description

Hydromagnetic variable liquid adjustable damper
Technical field the present invention relates to a kind of hydraulic damper, is specifically related to a kind of Hydromagnetic variable liquid adjustable damper.
The existing magnetic rheological liquid damper of background technique generally designs damping hole in the inside of oil hydraulic cylinder, and damping hole is the piston of oil hydraulic cylinder and the gap between the oil hydraulic cylinder inner wall of cylinder, and this gap is unadjustable usually; Field coil is installed on the piston, very inconvenience of dismounting in the using process; The lead-in wire of field coil is drawn from piston rod usually, need both increase the piston rod difficulty of processing at piston rod center processing fairlead, has reduced the intensity of piston rod again; Oil hydraulic cylinder needs special manufacturing, can not adopt common oil hydraulic cylinder; The damping hole size is less, is caused damper to lose efficacy by impurity " stuck " easily.
Summary of the invention
In order to realize the damping hole adjustable size, be convenient to the installation and the replacing of field coil, reduce the cost of damper, improve the functional reliability of damper, the present invention proposes a kind of magnetic rheological liquid damper.
The technical solution adopted for the present invention to solve the technical problems is:
Magnetic rheological liquid damper is made up of oil hydraulic cylinder, 2/2-way solenoid valve and magnetorheological control valve, magnetic flow liquid is arranged in the oil hydraulic cylinder, oil hydraulic cylinder is two rod oil hydraulic cylinders, and solenoid valve is the 2/2-way solenoid valve, and solenoid valve and magnetorheological control valve are installed in the outside of oil hydraulic cylinder and for being connected in parallel.
Described magnetorheological control valve comprises upper bed-plate, lower bottom base, last magnetic inductive block, following magnetic inductive block, cover plate, field coil, back-up ring, spool, be provided with pilot hole at upper bed-plate and lower bottom base center, be used for fixing spool, upper bed-plate adopts screw to be connected with last magnetic inductive block, O-ring seals is installed between upper bed-plate and the magnetic inductive block, lower bottom base adopts with following magnetic inductive block and is welded to connect, magnetic inductive block and back-up ring adopt and are welded to connect, identical and the central lines of the internal diameter size of upper bed-plate, lower bottom base, magnetic inductive block and back-up ring, field coil is installed between back-up ring and the cover plate.
The present invention is with the outside of the damp channel of magnetic flow liquid design at oil hydraulic cylinder, can change the size of damper output damping force by the spool of changing different size and the size of controlling the field coil electric current, simultaneously can also change and keep in repair field coil very easily, adopt common oil hydraulic cylinder to reduce the cost of damper, improved the functional reliability of damper by the controlled 2/2-way solenoid valve of parallel connection.
Description of drawings
Fig. 1: Hydromagnetic variable liquid adjustable damper structural representation.
Fig. 2: magnetorheological control valve arrangement schematic representation.
The present invention is further illustrated below in conjunction with accompanying drawing.
Embodiment
In Fig. 1, the Hydromagnetic variable liquid adjustable damper working procedure is: oil hydraulic cylinder 2 is full of magnetic flow liquid 1 before use earlier.When magnetorheological control valve 4 proper functioning, 2/2-way solenoid valve 3 is in the dead electricity off state.When the piston rod of oil hydraulic cylinder produces when moving up and down because of being subjected to the external force effect, the magnetic flow liquid 1 magnetorheological control valve 4 that is forced to flow through.When magnetic flow liquid 1 flows through the magnetorheological control valve 4 of energising, the bigger flow resistance of generation will be undergone phase transition,, the size of the viscous resistance that produces when magnetic flow liquid 1 flows through magnetorheological control valve 4 can be controlled by controlling the size of magnetorheological control valve 4 field currents.When magnetorheological control valve 4 lost efficacy, 3 energisings of 2/2-way solenoid valve are in opening state, Hydromagnetic variable liquid adjustable damper no longer works, but, thereby can not cause the Hydromagnetic variable liquid adjustable damper piston rod " stuck " phenomenon to occur because magnetic flow liquid 1 can pass through current downflow on the 2/2-way solenoid valve 3.
In Fig. 2, described magnetorheological control valve comprises upper bed-plate 5, lower bottom base 14, last magnetic inductive block 8, following magnetic inductive block 12, cover plate 9, field coil 10, back-up ring 11, spool 13, upper bed-plate adopts screw 6 to be connected with last magnetic inductive block, and O-ring seals 7 is installed between upper bed-plate and the magnetic inductive block.Constitute the damp channel of magnetic flow liquid 1 by upper bed-plate 5, lower bottom base 14, back-up ring 11 and spool 13.The working procedure of magnetorheological control valve is: the A mouth of magnetorheological control valve and B mouth communicate with the filler opening and the oil outlet of oil hydraulic cylinder respectively, when magnetic flow liquid 1 when the A mouth flows into, if field coil 10 is not controlled electric current, only produce a constant slit flow resistance that numerical value is less when then magnetic flow liquid 1 is by damp channel, if field coil 10 is connected to the control electric current, then magnetic flow liquid 1 will undergo phase transition by damp channel the time, cause magnetic flow liquid 1 to be subjected to bigger flow resistance.The size of change field coil 10 field currents and the outside dimension of spool 13 can change the ouput force of damper.

Claims (1)

1. magnetic rheological liquid damper, it is characterized in that: form by oil hydraulic cylinder, 2/2-way solenoid valve and magnetorheological control valve, magnetic flow liquid is arranged in the oil hydraulic cylinder, oil hydraulic cylinder is two rod oil hydraulic cylinders, solenoid valve is the 2/2-way solenoid valve, and solenoid valve and magnetorheological control valve are installed in the outside of oil hydraulic cylinder and for being connected in parallel;
Magnetorheological control valve comprises upper bed-plate, lower bottom base, last magnetic inductive block, following magnetic inductive block, cover plate, field coil, back-up ring, spool, be provided with pilot hole at upper bed-plate and lower bottom base center, be used for fixing spool, upper bed-plate adopts screw to be connected with last magnetic inductive block, O-ring seals is installed between upper bed-plate and the magnetic inductive block, lower bottom base adopts with following magnetic inductive block and is welded to connect, magnetic inductive block and back-up ring adopt and are welded to connect, identical and the central lines of the internal diameter size of upper bed-plate, lower bottom base, magnetic inductive block and back-up ring, field coil is installed between back-up ring and the cover plate.
CNB200610031978XA 2006-07-19 2006-07-19 Hydromagnetic variable liquid adjustable damper Expired - Fee Related CN100368701C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB200610031978XA CN100368701C (en) 2006-07-19 2006-07-19 Hydromagnetic variable liquid adjustable damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB200610031978XA CN100368701C (en) 2006-07-19 2006-07-19 Hydromagnetic variable liquid adjustable damper

Publications (2)

Publication Number Publication Date
CN1888467A true CN1888467A (en) 2007-01-03
CN100368701C CN100368701C (en) 2008-02-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB200610031978XA Expired - Fee Related CN100368701C (en) 2006-07-19 2006-07-19 Hydromagnetic variable liquid adjustable damper

Country Status (1)

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CN (1) CN100368701C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103291827A (en) * 2013-05-14 2013-09-11 吉林大学 Valve-plate-rigidity-adjustable damper piston
CN110374954A (en) * 2019-07-22 2019-10-25 中南大学 It is segmented boosting-type linear motion device
CN113803322A (en) * 2021-08-24 2021-12-17 昆明理工大学 Nano magnetic fluid gap sealing high-speed hydraulic cylinder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362027A (en) * 1993-11-12 1994-11-08 Electronics, Incorporated Flow regulating valve for magnetic particles
US5492312A (en) * 1995-04-17 1996-02-20 Lord Corporation Multi-degree of freedom magnetorheological devices and system for using same
CN2448977Y (en) * 2000-11-14 2001-09-19 哈尔滨工业大学 Magnetic current transformer overflow valve
CN2658474Y (en) * 2003-01-10 2004-11-24 杜彦亭 Bypass magnetic rheological damper with external magnetic field
CN2699033Y (en) * 2004-05-28 2005-05-11 重庆大学 Magneto-rheological fluid controlling valve with low energy consumption and wide control range

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103291827A (en) * 2013-05-14 2013-09-11 吉林大学 Valve-plate-rigidity-adjustable damper piston
CN110374954A (en) * 2019-07-22 2019-10-25 中南大学 It is segmented boosting-type linear motion device
CN110374954B (en) * 2019-07-22 2020-06-30 中南大学 Sectional reinforcement type linear motion device
CN113803322A (en) * 2021-08-24 2021-12-17 昆明理工大学 Nano magnetic fluid gap sealing high-speed hydraulic cylinder
CN113803322B (en) * 2021-08-24 2022-11-01 昆明理工大学 Nano magnetic fluid gap sealing high-speed hydraulic cylinder

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