CN2648175Y - Built-in air bag type double-rod magnetic flux variable fluid damper - Google Patents

Built-in air bag type double-rod magnetic flux variable fluid damper Download PDF

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Publication number
CN2648175Y
CN2648175Y CN 03260591 CN03260591U CN2648175Y CN 2648175 Y CN2648175 Y CN 2648175Y CN 03260591 CN03260591 CN 03260591 CN 03260591 U CN03260591 U CN 03260591U CN 2648175 Y CN2648175 Y CN 2648175Y
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CN
China
Prior art keywords
cylinder
piston
built
seal
magnetorheological fluid
Prior art date
Application number
CN 03260591
Other languages
Chinese (zh)
Inventor
欧进萍
关新春
Original Assignee
欧进萍
关新春
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 欧进萍, 关新春 filed Critical 欧进萍
Priority to CN 03260591 priority Critical patent/CN2648175Y/en
Application granted granted Critical
Publication of CN2648175Y publication Critical patent/CN2648175Y/en

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Abstract

The utility model provides a double output pole magneto-rheological liquid damper hiding an air chamber in the inner, which comprises a cylinder body, a piston arranged in the cylinder body, an excitation coil arranged on the piston, two piston rods arranged on the two ends of the piston, a sealing body on the two ends of the cylinder body and a magneto-rheological fluid filled in the cylinder body, the middle of the piston and the inner wall of the cylinder body is left a gap, the inner of the cylinder body is provided with an annular air chamber, , the annular air chamber is provided with an infusing gas hole protruding to the outer of the cylinder body. The air chamber of the utility model is designed to an annular shape, the air chamber is arranged in the cylinder body, in the precondition of ensuring good adjustment liquid volume difference, the whole structure is compact and simple, the outer of the cylinder body has no obvious protruding part, the occupying space is small, the figuration is beauty, the installation is convenient, the utility model is not easy to be damaged, and the service life is long.

Description

The two outstretch pole magnetorheological fluid dampers of built-in air sac type

(1), affiliated field

The utility model relates to a kind of vibration damping equipment.Specifically a kind of passive energy dissipation device that is used for automobile, machinery, bridge and civil structure.

(2), background technique

The existing pair of outstretch pole magnetorheological fluid damper generally all exists because of leak of liquid and to include bubble etc. former thereby cause the discontented problem of filling, thereby influence the energy dissipation capacity of damper under little amplitude.In addition, this type of damper is when temperature variation, because fluid is different with the thermal expansion coefficient of cylinder body, when temperature reduced, the fluid contraction amount was greater than the cylinder body contour projector, thereby further reduced the energy dissipation capacity of damper under little amplitude; When temperature raises, then there is the danger of cylinder body blast.In recent years, someone attempts to solve above problem by the method that accumulator is installed in the outside of damper, though this method principle is feasible, there are cost height, complex structure, shortcomings such as destruction easily take place the interface big, that inconvenience, damper and accumulator are installed that takes up room.Limited its application in all kinds of dampers.

(3), summary of the invention

The purpose of this utility model be to provide a kind of simple in structure, easy for installation, hysteresis loop is full, it is little to take up room, the two outstretch pole magnetorheological fluid dampers of the built-in air sac type of long service life.

The purpose of this utility model is achieved in that it comprises cylinder body, be arranged at the piston in the cylinder body, be installed in the field coil on the piston, be installed in two piston rods at piston two ends, the seal at cylinder body two ends and the magnetic flow liquid that is filled in the cylinder body, leave the slit between piston and the inboard wall of cylinder block, in cylinder body, be provided with ring-shaped gasbag, have on the ring-shaped gasbag and stretch out the outer injecting hole of cylinder body.

The utility model can also comprise some structure characteristics like this:

1, is provided with protective casing between the interior ring of described ring-shaped gasbag and the piston rod.

2, two piston rods stretch out the seal that overlaps end of body respectively, have the connection earrings in the end of piston rod.

3, piston rod stretches out the seal of cover end of body, has the connection earrings in the end of piston rod, and another piston rod extend in the groove on the seal, connects earrings and is installed on seal or the cylinder body.

4, described ring-shaped gasbag has 1, is positioned at the inboard of the seal of an end.

5, described ring-shaped gasbag has 2, lays respectively at the inboard of the seal at two ends.

5, have 1-10 groove on the piston, 1-10 field coil is set in the groove.

Working principle of the present utility model is:, internal memory bubble discontented because of pouring into when the volume of fluid or temperature drop etc. are former thereby during less than the volume of oil cylinder, and gassiness air bag can expand the difference in volume of fluid replacement volume and cylinder body.When fluid expands because of temperature rise, can by air bag under fluid pressure action contraction and the expander product moment of absorption fluids and cylinder body, to avoid the blast of cylinder body.

The utility model airbag design circlewise, air bag is arranged in the cylinder body, under the prerequisite of the adjustment fluid volume difference that guarantees to reach good, makes compact overall structure, simple, cylinder body is outer not to be had and significantly protrudes the position, little, the beautiful shape of taking up room, easy for installation, not fragile, long service life.

(4), description of drawings

Fig. 1, Fig. 2 are the structural representations of two kinds of embodiments of the present utility model;

Fig. 3 is the structural representation of annular air-pocket.

(5), specific embodiments

For example the utility model is done more detailed description below in conjunction with accompanying drawing:

Embodiment one.In conjunction with Fig. 1, the very two outstretch pole magnetorheological fluid dampers of a kind of built-in air sac type.Its composition comprises cylinder body 2, be arranged at the piston 3 in the cylinder body, be installed in two piston rods 7 at piston two ends, 10, the seal 3 at cylinder body two ends, 11 and be filled in magnetic flow liquid 8 in the cylinder body, 9, have groove on the piston, stud with field coil in the groove, the quantity of groove can be 1, also can be unnecessary 1, usually between 1-10, when the quantity of groove many during with 1, field coil all is set in each groove, and each field coil interconnects, and between piston and the inboard wall of cylinder block slit is arranged, and the end in cylinder body is provided with ring-shaped gasbag 4, have on the ring-shaped gasbag and stretch out the outer injecting hole 5 of cylinder body, have sealing cover on the injecting hole, two piston rods stretch out the seal of cover end of body respectively, have in the end of piston rod to connect earrings 1,12.For fear of air bag and movable piston rod friction, between the interior ring of ring-shaped gasbag and piston rod, protective casing 6 is set.

Embodiment two.In conjunction with Fig. 2, this is the stealthy two outstretch pole magnetorheological fluid dampers of a kind of built-in air sac type.Piston rod 10 stretches out the seal 11 of cover end of body, has in the end of piston rod to connect earrings 12, and another piston rod 9 extend in the groove on the seal 3, connects earrings 1 and is installed on the seal.Other parts and embodiment one are identical.

Embodiment three.On above-mentioned two embodiments' basis, 2 air bags are set in cylinder body, two air bags lay respectively at the inboard of the seal at two ends.

Claims (9)

1, the two outstretch pole magnetorheological fluid dampers of a kind of built-in air sac type, it comprises cylinder body, be arranged at the piston in the cylinder body, be installed in the field coil on the piston, be installed in two piston rods at piston two ends, the seal at cylinder body two ends and the magnetic flow liquid that is filled in the cylinder body leave the slit between piston and the inboard wall of cylinder block, it is characterized in that: in cylinder body, be provided with ring-shaped gasbag, have on the ring-shaped gasbag and stretch out the outer injecting hole of cylinder body.
2, the two outstretch pole magnetorheological fluid dampers of built-in air sac type according to claim 1 is characterized in that: be provided with protective casing between the interior ring of described ring-shaped gasbag and the piston rod.
3, the two outstretch pole magnetorheological fluid dampers of built-in air sac type according to claim 2, it is characterized in that: two piston rods stretch out the seal of cover end of body respectively, have the connection earrings in the end of piston rod.
4, the two outstretch pole magnetorheological fluid dampers of built-in air sac type according to claim 2, it is characterized in that: a piston rod stretches out the seal of cover end of body, have the connection earrings in the end of piston rod, another piston rod extend in the groove on the seal, connects earrings and is installed on seal or the cylinder body.
5, according to the two outstretch pole magnetorheological fluid dampers of any one described built-in air sac type of claim 1-4, it is characterized in that: described ring-shaped gasbag has 1, is positioned at the inboard of the seal of an end.
6, according to the two outstretch pole magnetorheological fluid dampers of any one described built-in air sac type of claim 1-4, it is characterized in that: described ring-shaped gasbag has 2, lays respectively at the inboard of the seal at two ends.
7, according to the two outstretch pole magnetorheological fluid dampers of any one described built-in air sac type of claim 1-4, it is characterized in that: have 1-10 groove on the piston, 1-10 field coil is set in the groove.
8, the two outstretch pole magnetorheological fluid dampers of built-in air sac type according to claim 5, it is characterized in that: have 1-10 groove on the piston, 1-10 field coil is set in the groove.
9, the two outstretch pole magnetorheological fluid dampers of built-in air sac type according to claim 6, it is characterized in that: have 1-10 groove on the piston, 1-10 field coil is set in the groove.
CN 03260591 2003-09-25 2003-09-25 Built-in air bag type double-rod magnetic flux variable fluid damper CN2648175Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03260591 CN2648175Y (en) 2003-09-25 2003-09-25 Built-in air bag type double-rod magnetic flux variable fluid damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03260591 CN2648175Y (en) 2003-09-25 2003-09-25 Built-in air bag type double-rod magnetic flux variable fluid damper

Publications (1)

Publication Number Publication Date
CN2648175Y true CN2648175Y (en) 2004-10-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03260591 CN2648175Y (en) 2003-09-25 2003-09-25 Built-in air bag type double-rod magnetic flux variable fluid damper

Country Status (1)

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CN (1) CN2648175Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100425860C (en) * 2004-12-11 2008-10-15 尹学军 Damper
CN100455843C (en) * 2007-06-04 2009-01-28 湖南大学 Magnetic-fluid change type regulation-liquid column damper
CN101245820B (en) * 2004-12-11 2010-06-02 尹学军 Damper
CN101245821B (en) * 2004-12-11 2011-03-23 尹学军 Damper with axial guiding device
CN102312950A (en) * 2011-08-18 2012-01-11 谭晓婧 Magneto rheological (MR) grease damper with single outlet rod
CN102359535A (en) * 2011-08-31 2012-02-22 重庆仪表材料研究所 Magnetorheological damper
CN102359537A (en) * 2011-09-01 2012-02-22 谭晓婧 Single-rod magneto-rheological grease damper
CN104500641A (en) * 2015-01-14 2015-04-08 青岛理工大学 Birotor self-powered damper based on magnetorheological elastomers

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100425860C (en) * 2004-12-11 2008-10-15 尹学军 Damper
CN101245820B (en) * 2004-12-11 2010-06-02 尹学军 Damper
CN101245821B (en) * 2004-12-11 2011-03-23 尹学军 Damper with axial guiding device
CN100455843C (en) * 2007-06-04 2009-01-28 湖南大学 Magnetic-fluid change type regulation-liquid column damper
CN102312950A (en) * 2011-08-18 2012-01-11 谭晓婧 Magneto rheological (MR) grease damper with single outlet rod
CN102359535A (en) * 2011-08-31 2012-02-22 重庆仪表材料研究所 Magnetorheological damper
CN102359537A (en) * 2011-09-01 2012-02-22 谭晓婧 Single-rod magneto-rheological grease damper
CN102359537B (en) * 2011-09-01 2012-11-28 谭晓婧 Single-rod magneto-rheological grease damper
CN104500641A (en) * 2015-01-14 2015-04-08 青岛理工大学 Birotor self-powered damper based on magnetorheological elastomers
CN104500641B (en) * 2015-01-14 2016-08-24 青岛理工大学 A kind of birotor self-powered amortisseur based on magnetic rheology elastic body

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C19 Lapse of patent right due to non-payment of the annual fee
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