CN102797785A - Single-rod air bag type magnetorheological damper - Google Patents
Single-rod air bag type magnetorheological damper Download PDFInfo
- Publication number
- CN102797785A CN102797785A CN2012103227821A CN201210322782A CN102797785A CN 102797785 A CN102797785 A CN 102797785A CN 2012103227821 A CN2012103227821 A CN 2012103227821A CN 201210322782 A CN201210322782 A CN 201210322782A CN 102797785 A CN102797785 A CN 102797785A
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- air bag
- clutch release
- slave cylinder
- release slave
- working cylinder
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- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a single-rod air bag type magnetorheological damper, which comprises a working cylinder, an electric magnet, a damping bar and an air bag, wherein the working cylinder is cylindrical, and an end cover is respectively fixed on the upper end and the lower end of the working cylinder; a hole is arranged in the centre of the upper end cover and a sliding bearing is arranged inside the hole; the inner diameter of the working cylinder is larger than the outer diameter of the air bag; the distance between the upper end cover and the lower end cover of the working cylinder is greater than the height of the air bag; the air bag is installed on the bottom inside the working cylinder; one end of the air bag is fixed with the lower end cover of the working cylinder, and the other end of the air bag is fixed with one end of the damping bar; and the other end of the damping bar extends out of the interior of the working cylinder through a bearing on the upper end cover of the working cylinder; a magnetorheological fluid injected in the working cylinder is higher than the air bag and the height of the magnetorheological fluid injected in the working cylinder is less than the distance between the upper end cover and the lower end cover of the working cylinder; and the electric magnet is fixed on the outer circle of the working cylinder.
Description
Technical field
The invention belongs to a kind of vibration damper, be specifically related to a kind of single rod air sac type magneto-rheological vibration damper.
Background technique
Instrument particularly precision type instrument often all need be placed into a minimum working environment of vibration; People are through at instrument underlay one deck sponge mat or designed various " passive type vibration damper " and satisfied various instrument vibration damping; Like: one Chinese patent application number is that 2009100625007 " inflatable vibration damper " is exactly one of them; Although the compact structure of this inflatable vibration damper, rigidity is adjustable, because of it is to adopt to charge and discharge gas and regulate its damping property, therefore; Its damping property is regulated coarse, is difficult to be applicable to the demands of different of different instruments to vibration damping.
Summary of the invention
Regulate coarse deficiency in order to overcome existing inflatable vibration damper damping property, the present invention proposes a kind of single rod air sac type magneto-rheological vibration damper.
Technological scheme of the present invention is following: a kind of single rod air sac type magneto-rheological vibration damper, and it comprises clutch release slave cylinder, electromagnet, damping rod and air bag; Wherein: clutch release slave cylinder is a cylindrical shape, all is fixed with end cap at the upper/lower terminal of clutch release slave cylinder, and is porose at the center of upper end cap; Sliding bearing is installed in the hole, and the internal diameter of clutch release slave cylinder is greater than the external diameter of air bag, and the spacing between the upper and lower end cap of clutch release slave cylinder is greater than the height of air bag; Air bag is fixed on the bottom in the clutch release slave cylinder, and an end of air bag and clutch release slave cylinder lower end cap fix, and an end of the other end of air bag and damping rod is fixed; The other end of damping rod stretches out in clutch release slave cylinder through the bearing of clutch release slave cylinder upper end cap, in clutch release slave cylinder, injects the height of the height of magnetic flow liquid greater than air bag, and the height that injects magnetic flow liquid in the clutch release slave cylinder is less than the spacing between the upper and lower end cap of clutch release slave cylinder; Electromagnet is fixed on the excircle of clutch release slave cylinder, and air bag is cydariform, and two discs of air bag constitute by magnetic conduction rigid material not; Its circumferential surface is made up of macromolecular material; In air bag, be filled with the gas of certain pressure, clutch release slave cylinder and damping rod are made up of non-magnet_conductible material, on the upper end cap of clutch release slave cylinder, also are provided with at least one exhaust hole.
Function of the present invention is achieved in that when load causes the downward vibration of damping rod; Damping rod will push the cydariform air bag; Because of being filled with the gas of certain pressure in the cydariform air bag; And the circumferential surface of cydariform air bag is made up of macromolecular material, like this, makes the gas in the cydariform air bag receive further compression on the one hand; Make deform under the extruding of outer peripheral surface pressurized gas in receiving air bag of cydariform air bag (being crushed) on the other hand again; The distortion of cydariform air bag can be pushed the magnetic flow liquid of (just in the clutch release slave cylinder) around it, is changed by the cydariform air bag liquid level height that causes magnetic flow liquid in the clutch release slave cylinder that deforms, and makes that magnetic flow liquid top air can be through the turnover of the exhaust port on the upper end cap in the clutch release slave cylinder; Therefore; When the electromagnet on the clutch release slave cylinder excircle is not switched on; The viscosity of the magnetic flow liquid in the clutch release slave cylinder is very low; When load causes that damping rod vibrates downwards, damping rod make the cydariform air bag produce distortion and the damping force that produced when pushing the magnetic flow liquid of (that is: in the clutch release slave cylinder) around it less; After the electromagnet on the clutch release slave cylinder excircle feeds electric current; Electromagnet on the clutch release slave cylinder excircle will generate an electromagnetic field, and this electromagnetic field uprises the viscosity of the magnetic flow liquid in the clutch release slave cylinder, like this; When load causes that damping rod vibrates downwards; Damping rod make the cydariform air bag produce distortion and the damping force that produced when pushing the magnetic flow liquid of (that is: in the clutch release slave cylinder) around it just bigger, therefore, get into the size of current in the electromagnet on the clutch release slave cylinder excircle through adjustment; Can adjust the damping force size of single rod air sac type magneto-rheological vibration damper of the present invention; Thereby reduce the vibration of load, tell on is repeated no more with above-mentioned opposite here when load causes upwards vibrating of damping rod.
Compare with existing inflatable vibration damper; Single rod air sac type magneto-rheological vibration damper of the present invention; Because of coming continuously the rigidity of adjustment air bag to carry out " active damping " through the field current size of adjusting its electromagnet; Make it can be applicable to different vibration damping occasions and satisfy different instrument vibration damping demands, make the using scope of single rod air sac type magneto-rheological vibration damper obtain expanding.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is a kind of schematic representation of the present invention when work.
Fig. 4 is a kind of schematic representation of the present invention when using.
Embodiment
Specify structure of the present invention below in conjunction with accompanying drawing:
Referring to Fig. 1 and Fig. 2, this is a kind of concrete structure of the present invention, a kind of single rod air sac type magneto-rheological vibration damper; It comprises the clutch release slave cylinder that is made up of non-magnet_conductible material 5 and damping rod 2, electromagnet 14 and air bag 8, and wherein: air bag 8 be a cydariform, and the last disc 6 of air bag 8 and following disc 11 are by magnetic conduction rigid material formation not; Its circumferential surface 8 is made up of macromolecular material, in air bag 8, is filled with the gas 12 of certain pressure, and clutch release slave cylinder 5 is that the upper/lower terminal at cylinder 7 is fixed with end cap 4 and end cap 10; Center at upper end cap 4 is porose; Sliding bearing 3 is installed in the hole, and the internal diameter of clutch release slave cylinder 5 is greater than the external diameter of air bag 8, and the spacing between clutch release slave cylinder 5 upper end caps 4 and the lower end cap 10 is greater than the height of air bag 8; Air bag 8 is fixed on the bottom in the clutch release slave cylinder 5; And an end 11 of air bag 8 is fixing with clutch release slave cylinder 5 lower end caps 10, and the other end 6 of air bag 8 is fixed with an end of damping rod 2, and the other end of damping rod 2 stretches out in clutch release slave cylinder 5 through the bearing 3 of clutch release slave cylinder 5 upper end caps 4; In clutch release slave cylinder 5, inject the height of the height 13 of magnetic flow liquid 9 greater than air bag 8; The height 13 that injects magnetic flow liquid 9 in the clutch release slave cylinder 5 is less than the spacing between clutch release slave cylinder 5 upper end caps 4 and the lower end cap 10, and electromagnet 14 is fixed on the excircle of clutch release slave cylinder 5, on the upper end cap 4 of clutch release slave cylinder 5, also is provided with an exhaust hole 1.
The working state of a kind of single rod air sac type magneto-rheological vibration damper of the present invention is described with Fig. 4 below in conjunction with accompanying drawing 3: control power supply 16 is connected with electromagnet 14 through lead 15 and (sees for details: Fig. 3); Four single rod air sac type magneto-rheological vibration dampers are fixed on through flange disc 19 on four pin of instrument 18 and (see for details: Fig. 4); When control power supply 16 not during electromagnet 14 output currents on clutch release slave cylinder 5 excircles; The viscosity of the magnetic flow liquid 9 in the clutch release slave cylinder 5 is very low; When instrument 18 causes damping rod 2 vibration downwards; Damping rod 2 makes cydariform air bag 8 produce distortion, and the damping force that cydariform air bag 8 distortion backs are produced when pushing the magnetic flow liquid 9 in the clutch release slave cylinders 5 is less; When controlling power supply 16 behind electromagnet 14 output currents on clutch release slave cylinder 5 excircles; Electromagnet 14 on clutch release slave cylinder 5 excircles will generate an electromagnetic field, and this electromagnetic field uprises the viscosity of the magnetic flow liquid 9 in the clutch release slave cylinder 5, like this; When instrument 18 causes damping rod 2 vibration downwards; The damping force that damping rod 2 is produced when making the magnetic flow liquid 9 that 8 generations of cydariform air bag are out of shape and extruding clutch release slave cylinder 5 interior viscosity are higher is just bigger, therefore, and through adjusting the size of current in the electromagnet 14 on entering clutch release slave cylinder 5 excircles; Can adjust the damping force size of single rod air sac type magneto-rheological vibration damper of the present invention; Thereby the vibration of lowering apparatus 18, tell on is repeated no more with above-mentioned opposite here when instrument 18 causes upwards vibrating of damping rod 2.
Claims (4)
1. single rod air sac type magneto-rheological vibration damper, it comprises clutch release slave cylinder, electromagnet, damping rod and air bag; It is characterized in that: said clutch release slave cylinder is a cylindrical shape, all is fixed with end cap at the upper/lower terminal of clutch release slave cylinder, and is porose at the center of upper end cap; Sliding bearing is installed in the hole; The internal diameter of clutch release slave cylinder is greater than the external diameter of air bag, and the spacing between the upper and lower end cap of clutch release slave cylinder is greater than the height of air bag, and air bag is fixed on the bottom in the clutch release slave cylinder; And an end and the clutch release slave cylinder lower end cap of air bag are fixed; One end of the other end of air bag and damping rod is fixed, and the other end of damping rod stretches out in clutch release slave cylinder through the bearing of clutch release slave cylinder upper end cap, in clutch release slave cylinder, injects the height of the height of magnetic flow liquid greater than air bag; The height that injects magnetic flow liquid in the clutch release slave cylinder is less than the spacing between the upper and lower end cap of clutch release slave cylinder, and electromagnet is fixed on the excircle of clutch release slave cylinder.
2. a kind of single rod air sac type magneto-rheological vibration damper as claimed in claim 1; It is characterized in that: said air bag is a cydariform; Two discs of air bag constitute by magnetic conduction rigid material not, and its circumferential surface is made up of macromolecular material, in air bag, is filled with the gas of certain pressure.
3. a kind of single rod air sac type magneto-rheological vibration damper as claimed in claim 1, it is characterized in that: said clutch release slave cylinder and damping rod are made up of non-magnet_conductible material.
4. a kind of single rod air sac type magneto-rheological vibration damper as claimed in claim 1 is characterized in that: also be provided with at least one exhaust hole on the upper end cap of said clutch release slave cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103227821A CN102797785A (en) | 2012-09-04 | 2012-09-04 | Single-rod air bag type magnetorheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103227821A CN102797785A (en) | 2012-09-04 | 2012-09-04 | Single-rod air bag type magnetorheological damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102797785A true CN102797785A (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103227821A Pending CN102797785A (en) | 2012-09-04 | 2012-09-04 | Single-rod air bag type magnetorheological damper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118237A (en) * | 2019-05-29 | 2019-08-13 | 长安大学 | A kind of combined wideband vibration and noise reducing device |
| CN110344347A (en) * | 2019-07-12 | 2019-10-18 | 沈阳建筑大学 | A kind of bladder-type magnetic rheology elastic body automatic alarm height-limiting bar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858401A (en) * | 2010-06-02 | 2010-10-13 | 谭和平 | Volume compensation method and single outstretch pole magneto-rheological damper with annular airbag |
| CN101915281A (en) * | 2010-07-19 | 2010-12-15 | 谭和平 | Single-rod magnetorheological damper with one-way channel |
| CN201982565U (en) * | 2010-07-23 | 2011-09-21 | 无锡市宏源弹性器材有限公司 | Fluid power air damping buffer |
| CN202100652U (en) * | 2011-06-22 | 2012-01-04 | 谭和平 | Multi-plate piston single rod magnetorheological damper |
-
2012
- 2012-09-04 CN CN2012103227821A patent/CN102797785A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858401A (en) * | 2010-06-02 | 2010-10-13 | 谭和平 | Volume compensation method and single outstretch pole magneto-rheological damper with annular airbag |
| CN101915281A (en) * | 2010-07-19 | 2010-12-15 | 谭和平 | Single-rod magnetorheological damper with one-way channel |
| CN201982565U (en) * | 2010-07-23 | 2011-09-21 | 无锡市宏源弹性器材有限公司 | Fluid power air damping buffer |
| CN202100652U (en) * | 2011-06-22 | 2012-01-04 | 谭和平 | Multi-plate piston single rod magnetorheological damper |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118237A (en) * | 2019-05-29 | 2019-08-13 | 长安大学 | A kind of combined wideband vibration and noise reducing device |
| CN110118237B (en) * | 2019-05-29 | 2020-11-24 | 长安大学 | Combined type broadband vibration and noise reduction device |
| CN110344347A (en) * | 2019-07-12 | 2019-10-18 | 沈阳建筑大学 | A kind of bladder-type magnetic rheology elastic body automatic alarm height-limiting bar |
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Application publication date: 20121128 |