CN103122964A - Magnetic liquid damping vibration reduction device - Google Patents
Magnetic liquid damping vibration reduction device Download PDFInfo
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- CN103122964A CN103122964A CN201310049998XA CN201310049998A CN103122964A CN 103122964 A CN103122964 A CN 103122964A CN 201310049998X A CN201310049998X A CN 201310049998XA CN 201310049998 A CN201310049998 A CN 201310049998A CN 103122964 A CN103122964 A CN 103122964A
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- permanent magnet
- magnetic liquid
- vibration reduction
- housing
- vibration
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Abstract
The invention provides a magnetic liquid damping vibration reduction device, belongs to the field of mechanical engineering vibration, is applied to vibration reduction of long objects, and solves the problem that the inner wall of the shell of the prior magnetic liquid damping absorber crashes into with a permanent magnet, and therefore service life of the permanent magnet is reduced and vibration reduction performance is affected. The outer end of a nest spring (5) of the magnetic liquid damping vibration reduction device is welded on the inner wall of a shell (4) to form the inner wall of the vibration reduction device; a cylindrical permanent magnet (8) adhered with magnetic liquid is placed in the shell; the permanent magnet (8) and the nest spring (5) are axially magnetized, and the axial line is placed perpendicular to a level surface; a V-shaped included angle of a wedge angle gasket (6) is 60-170 degrees; the permanent magnet (8) and the nest spring (5) are axially magnetized, and the axial line is placed perpendicular to the level surface; and gaps between the nest spring (5) and the permanent magnet (8) are smaller than or equal to amplitude required by vibration reduction of the absorber. The magnetic liquid damping vibration reduction device is simple, reliable, obvious in vibration reduction effect and long in service life.
Description
Technical field
The invention belongs to mechanical engineering and vibrate the field.
Background technique
Magnetic liquid damping vibration attenuation technology has the inertial force susceptibility highly due to it, and power consumption is large, and volume is little, and is simple in structure, and the life-span is long etc., and advantage is used by space industry gradually.As described in the patent application that existing magnetic liquid damping shock absorber typical structure is CN 102032304A as publication number, this vibration damper comprises: O type rubber seal, housing, magnetic liquid, permanent magnet, end cap.Permanent magnet is placed in housing, and magnetic liquid is adsorbed on permanent magnet, by bolt and nut, end cap is fixedly connected with housing, therebetween by O type rubber seal rings for seal.When making for a certain reason described device, can bump between inner walls and permanent magnet during greater than the gap between housing and permanent magnet at amplitude, vibration damper is descended working life, affect damping property.
Summary of the invention
The technical issues that need to address of the present invention are, existing magnetic liquid damping vibration attenuating device is at extraneous amplitude during greater than the gap between housing and permanent magnet, can bump between inner walls and permanent magnet, cause vibration damping equipment to descend working life, affect damping property, therefore, provide a kind of magnetic liquid damping vibration attenuating device.
The technical solution adopted for the present invention to solve the technical problems is:
Magnetic liquid damping vibration attenuating device, this vibration damping equipment comprises: O type rubber seal, housing, nest spring, angle of wedge pad, magnetic liquid, cylinder permanent magnet, end cap; In groove on O type rubber seal embedding housing opening end face, on magnetic liquid absorption permanent magnet, by screw bolt and nut, end cap and housing are closely linked together.
The outer end of nest spring is welded on the inwall of housing, forms the inwall of vibration damping equipment.
Angle of wedge pad is placed on the bottom in housing, and its V-arrangement angle makes progress, and the permanent magnet that is adsorbing magnetic liquid is placed in housing.
Described cylinder permanent magnet axial charging, axis is placed perpendicular to horizontal plane.
The V-arrangement angle of described angle of wedge pad is 60～170 degree.
Gap between described nest spring and cylinder permanent magnet needs the amplitude of vibration damping less than or equal to vibration damper.
The present invention compares the beneficial effect that has with prior art:
Be welded on the nest spring on inner walls, effectively prevented the shock of cylinder permanent magnet and vibration damper inwall, improved damping property and the working life of vibration damping equipment.Angle of wedge pad is arranged on the bottom in housing, has increased effectiveness in vibration suppression.
Description of drawings
Fig. 1 is the magnetic liquid damping vibration attenuating device structural drawing.
Fig. 2 is magnetic liquid damping vibration attenuating device internal structure graphics.
Embodiment
The invention will be further described by reference to the accompanying drawings:
Magnetic liquid damping vibration attenuating device, as Fig. 1,2, this vibration damping equipment comprises: O type rubber seal 3, housing 4, nest spring 5, angle of wedge pad 6, magnetic liquid 7, cylinder permanent magnet 8, end cap 9; In the groove that O type rubber seal 3 embeds on housing 4 open ends, on magnetic liquid absorption cylinder permanent magnet, by screw bolt and nut, end cap 9 and housing 4 are closely linked together.
The outer end of nest spring 5 is welded on the inwall of housing 4, forms the inwall of vibration damping equipment.
Angle of wedge pad 6 is placed on the bottom in housing 4, and its V-arrangement angle makes progress, and the cylinder permanent magnet 8 that is adsorbing magnetic liquid 7 is placed in housing 4.
Described cylinder permanent magnet 8 axial chargings, axis is placed perpendicular to horizontal plane.
The V-arrangement angle of described angle of wedge pad 6 is 60～170 degree.This angle is got its end value or is got its middle arbitrary value and all can.
Gap between described nest spring 5 and cylinder permanent magnet 8 needs the amplitude of vibration damping less than or equal to vibration damper.
When being subject to extraneous vibration, adsorbing the cylinder permanent magnet 8 of magnetic liquid 7 in the interior motion of housing 4, forming effective friction energy-dissipating, thereby reach the vibration damping purpose.
When bumping between cylinder permanent magnet 8 and nest spring 5, due to the buffering absorbing effect of nest spring 5, thereby avoided collision between rigid body, improved life-span and the performance of vibration damper.。
The material selection rubidium iron boron of cylinder permanent magnet 8.
Described housing 4, angle of wedge pad 6, end cap 9, nest spring 5, screw bolt and nut are by the non-magnet material manufacturing.
Claims (3)
1. magnetic liquid damping vibration attenuating device, this vibration damping equipment comprises: housing (4), O type rubber seal (3), end cap (9), cylinder permanent magnet (8), magnetic liquid (7); In groove on O type rubber seal (3) embedding housing (4) open end, on magnetic liquid absorption cylinder permanent magnet, by screw bolt and nut, end cap (9) and housing (4) are closely linked together;
It is characterized in that:
The outer end of nest spring (5) is welded on the inwall of housing (4), forms the inwall of vibration damping equipment;
Angle of wedge pad (6) is placed on the bottom in housing (4), and its V-arrangement angle makes progress, and the cylinder permanent magnet (8) that is adsorbing magnetic liquid (7) is placed in housing (4);
Described permanent magnet (8) axial charging, axis is placed perpendicular to horizontal plane.
2. a kind of magnetic liquid damping vibration attenuating device according to claim 1 is characterized in that:
The V-arrangement angle of described angle of wedge pad (6) is 60～170 degree.
3. a kind of magnetic liquid damping vibration attenuating device according to claim 1 is characterized in that:
Gap between described nest spring (5) and cylinder permanent magnet (8) needs the amplitude of vibration damping less than or equal to vibration damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310049998.XA CN103122964B (en) | 2013-02-08 | 2013-02-08 | Magnetic liquid damping vibration reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310049998.XA CN103122964B (en) | 2013-02-08 | 2013-02-08 | Magnetic liquid damping vibration reduction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103122964A true CN103122964A (en) | 2013-05-29 |
| CN103122964B CN103122964B (en) | 2015-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310049998.XA Expired - Fee Related CN103122964B (en) | 2013-02-08 | 2013-02-08 | Magnetic liquid damping vibration reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103122964B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112921A (en) * | 2020-10-29 | 2020-12-22 | 清华大学 | Magnetic liquid damping vibration absorber |
| CN112196927A (en) * | 2020-10-23 | 2021-01-08 | 清华大学 | Magnetic liquid damping shock absorber based on first-order and second-order buoyancy principle |
| CN112211940A (en) * | 2020-10-30 | 2021-01-12 | 清华大学 | Magnetic liquid vibration damper |
| CN112392884A (en) * | 2020-11-11 | 2021-02-23 | 清华大学 | Magnetic liquid shock absorber based on second-order buoyancy principle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11230255A (en) * | 1998-02-12 | 1999-08-27 | Nok Corp | Inertia damper |
| US20060032715A1 (en) * | 2004-08-13 | 2006-02-16 | William Barvosa-Carter | Reversibly expandable energy absorbing assembly utilizing actively controlled and engineered materials for impact management and methods for operating the same |
| FR2894004A1 (en) * | 2005-11-28 | 2007-06-01 | Belarussian Nat Technical Univ | Inertial damper for e.g. satellite antenna, has case with cavity comprising complex including magnetic field source introduced in magnetic fluid, and elastic unit permitting to stabilize complex in defined position of cavity |
| JP2007315416A (en) * | 2006-05-23 | 2007-12-06 | Nok Corp | Viscous rubber damper |
| CN102032304A (en) * | 2010-12-29 | 2011-04-27 | 北京交通大学 | Magnetic fluid damping device |
-
2013
- 2013-02-08 CN CN201310049998.XA patent/CN103122964B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11230255A (en) * | 1998-02-12 | 1999-08-27 | Nok Corp | Inertia damper |
| US20060032715A1 (en) * | 2004-08-13 | 2006-02-16 | William Barvosa-Carter | Reversibly expandable energy absorbing assembly utilizing actively controlled and engineered materials for impact management and methods for operating the same |
| FR2894004A1 (en) * | 2005-11-28 | 2007-06-01 | Belarussian Nat Technical Univ | Inertial damper for e.g. satellite antenna, has case with cavity comprising complex including magnetic field source introduced in magnetic fluid, and elastic unit permitting to stabilize complex in defined position of cavity |
| JP2007315416A (en) * | 2006-05-23 | 2007-12-06 | Nok Corp | Viscous rubber damper |
| CN102032304A (en) * | 2010-12-29 | 2011-04-27 | 北京交通大学 | Magnetic fluid damping device |
Non-Patent Citations (1)
| Title |
|---|
| 王庆雷等: "磁性液体阻尼减振器的实验研究", 《北京交通大学学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196927A (en) * | 2020-10-23 | 2021-01-08 | 清华大学 | Magnetic liquid damping shock absorber based on first-order and second-order buoyancy principle |
| CN112196927B (en) * | 2020-10-23 | 2021-08-17 | 清华大学 | Magnetic liquid damping shock absorber based on first-order and second-order buoyancy principle |
| CN112112921A (en) * | 2020-10-29 | 2020-12-22 | 清华大学 | Magnetic liquid damping vibration absorber |
| CN112211940A (en) * | 2020-10-30 | 2021-01-12 | 清华大学 | Magnetic liquid vibration damper |
| CN112392884A (en) * | 2020-11-11 | 2021-02-23 | 清华大学 | Magnetic liquid shock absorber based on second-order buoyancy principle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103122964B (en) | 2015-05-06 |
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Granted publication date: 20150506 Termination date: 20200208 |