CN102979847B - Rotary type magneto-rheological damper - Google Patents
Rotary type magneto-rheological damper Download PDFInfo
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- CN102979847B CN102979847B CN201210509450.4A CN201210509450A CN102979847B CN 102979847 B CN102979847 B CN 102979847B CN 201210509450 A CN201210509450 A CN 201210509450A CN 102979847 B CN102979847 B CN 102979847B
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Abstract
The invention discloses a rotary type magneto-rheological damper which is characterized in that the damper mainly comprises an outer shell, a front end cap, a back end cap, a front magnet exciting coil, a back magnet exciting coil, a rotor, a bearing, a sealing washer, seal rings and magnetic isolation rings. The front and back end caps are located at the two sides of the rotor and are respectively connected with the outer shell, forming a stator. The bearing and the sealing washer are respectively arranged between the rotor and the front and back end caps. The front and back magnet exciting coils are wound inside the front and back end caps. The magnetic isolation rings are respectively installed between the front and back end caps and the outer shell, and O-shaped seal rings are respectively arranged between the magnetic isolation rings and the outer shell as well as the front and back end caps. A sealed liquid charging hole is formed at the upper part of the outer shell, and magneto-rheological fluid is filled in a hollow cavity between the stator and the rotor. The front and back magnet exciting coils are wound in the same direction, with the tail ends being connected with each other in series and the head ends being loaded with power sources. The two magnet exciting coils form two parallel magnetic pathways which generate two magnetic fields in opposite direction, and the magnetic flux is generated by a single piece of magnet exciting coils.
Description
Technical field
The present invention relates to electronic device, be specially a kind of revolving type magnetic rheologic damper of magnetic flow liquid as medium that use.
Background technique
Revolving type magnetic rheologic damper carries out work by being filled in the controlled magnetic flow liquid of yield stress between its stator and rotor.The work area of its rotor is one of principal element affecting damper performance.At present, some revolving type magnetic rheologic dampers are using the end face of rotor as working surface, and damper has larger radial dimension conventionally.Other revolving type magnetic rheologic dampers are using the cylndrical surface of rotor as working surface, convenient rotor axial and/or the radial dimension of increasing, and to increase the output torque of damper, but this kind of structure but fails to utilize the end face of rotor.In addition, in order to obtain larger damping torque, also occurred polydisc chip MR damper, this kind of damper is to utilize the end face of rotor as working surface equally, still exists axial dimension relatively large, the deficiency that structure is comparatively complicated.
Summary of the invention
In order to overcome the deficiencies in the prior art, the technical problem that quasi-solution of the present invention is determined is that a kind of revolving type magnetic rheologic damper is provided.This damper adopts single-deck sheet, Multi-working-surface design, and rotor peripheral face is effectively increased, and can, under less volume and weight, provide larger damping torque, have simple in structure, leakage field is few, be convenient to the features such as design, weight saving.
The technological scheme that the present invention solve the technical problem is: design a kind of revolving type magnetic rheologic damper, this damper mainly comprises front cover, rear end cover, front field coil, rear field coil, rotor, bearing, seal ring, seal ring, magnetic partiting ring and shell; Described front cover and rear end cover are positioned at rotor both sides, and are connected with shell respectively, form stator; Between described rotor and front cover and rear end cover, place respectively bearing and seal ring, described front field coil is wound in front cover, rear field coil is wound in rear end cover, magnetic partiting ring is installed on respectively between front cover and shell and between rear end cover and shell, between magnetic partiting ring and shell, place respectively O type seal ring between magnetic partiting ring and front cover and rear end cover; The top of shell has the sealing liquid filling hole for adding magnetic flow liquid, in the cavity between stator and rotor, fills magnetic flow liquid; The winding direction that it is characterized in that described front field coil and rear field coil is identical, both tail ends join and are cascaded, both head ends connect respectively the both positive and negative polarity of power supply, two groups of field coils form two flux paths in parallel, load after direct current, produce two magnetic fields of opposite direction, the magnetic flux that its magnetic flux produces for single field coil.
Compared with prior art, the revolving type magnetic rheologic damper of the present invention's design has the following advantages:
1. design new MR damper magnetic structure, made two end faces of rotor and cylndrical surface all as working surface, in the situation that not increasing rotor volume, effectively increased the work area of rotor.
2. the magnetic structure of damper consists of two magnetic circuits in parallel, in damper shell, and magnetic line of force opposite direction, magnetic flux is wherein the magnetic flux that single coil produces, and has reduced the thickness of shell.
3. two of damper rotor work area sums equal rotor cylinder surface area, and the magnetic induction intensity of working zone is even, is easy to the designing and calculating of damper.
4. damper structure is simple, and part is easily processed, and during assembling, the dimensional accuracy of working zone easily guarantees.
Accompanying drawing explanation
Fig. 1 is that a kind of embodiment's of revolving type magnetic rheologic damper of the present invention master cuts open structural representation;
Fig. 2 is a kind of embodiment's of revolving type magnetic rheologic damper of the present invention left TV structure schematic diagram;
Fig. 3 is that a kind of embodiment's of revolving type magnetic rheologic damper of the present invention (Fig. 2) A-A is to sectional structure schematic diagram;
Fig. 4 is that a kind of embodiment's of the revolving type magnetic rheologic damper of the present invention magnetic line of force moves towards schematic diagram.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof, further narrate the present invention.
The revolving type magnetic rheologic damper of the present invention's design (is called for short damper, referring to Fig. 1-4), this damper mainly comprises front cover 1, rear end cover 2, front field coil 3, rear field coil 4, rotor 5, bearing 6, seal ring 7, seal ring 8, magnetic partiting ring 9 and shell 10.
The front cover 1 of damper of the present invention and rear end cover 2 are positioned at rotor 5 both sides, and front cover 1 and rear end cover 2 link together with shell 10 use screws respectively, form stator.Between rotor 5 and front cover 1 and between rotor 5 and rear end cover 2, place respectively bearing 6 and seal ring 7; Front field coil 3 is wound in front cover 1, and rear field coil 4 is wound in rear end cover 2, and magnetic partiting ring 9 is installed on respectively between front cover 1 and shell 10 and between rear end cover 2 and shell 10; Between magnetic partiting ring 9 and shell 10, between magnetic partiting ring 9 and front cover 1 and place respectively O type seal ring 8 between magnetic partiting ring 9 and rear end cover 2.The top of shell 10 has sealing liquid filling hole 11, and liquid filling hole 11 is for adding magnetic flow liquid, and magnetic flow liquid is filled in the cavity between stator and rotor 5.During damper work, liquid filling hole 11 use screws and rubber sheet gasket sealing.It is characterized in that described front field coil 3 is identical with rear field coil 4 winding directions or structure, the tail end of front field coil 3 is connected with the tail end of rear field coil 4, two groups of field coils are cascaded, the head end of the head end of front field coil 3 and rear field coil 4 is current load end 12, connects respectively positive pole and the negative pole of power supply; Two groups of field coils form two flux paths in parallel, load after direct current (d.c.) two magnetic fields that front field coil 3 and rear field coil 4 produce opposite direction, the magnetic flux that its magnetic flux produces for single coil.
In damper of the present invention, described forward and backward field coil 3,4 and the position relationship of relevant each parts and the load mode of coil current, make damper have two symmetrical flux paths in parallel, wherein the magnetic line of force direction of a flux path is: front cover 1-front cover 1 and rotor 5 end clearances-rotor 5 end faces-rotor 5 cylndrical surface-rotor 5 cylndrical surface and shell 10 gaps-shell 10-front cover 1; The magnetic line of force direction of another flux path is: rear end cover 2-rear end cover 2 and rotor 5 end clearances-rotor 5 end faces-rotor 5 cylndrical surface-rotor 5 cylndrical surface and shell 10 gaps-shell 10-rear end cover 2(are referring to Fig. 4).
Damper of the present invention has two groups of working surfaces: two end faces of rotor 5 and the cylndrical surface of rotor 5, in other words, whole outer surfaces of rotor 5 are working surface.In the situation that not increasing damper rotor 5 volume, two groups of working surfaces have farthest increased the work area of rotor 5.
The specific embodiment of damper of the present invention is designed to: the work cylndrical surface diameter of rotor 5 is 70mm, and the work cylndrical surface radial length of rotor 5 is 32mm, and the end face work toroidal surface internal diameter of rotor 5 is 20mm, and external diameter is 70mm; The minimum thickness of shell 10 is 7.8mm, working clearance 1mm; Front field coil 3 is identical with rear field coil 4 structures, is 230 circles, maximum operating currenbt 2A, maximal input 24W; Adopt the MRF-140CG of LORD company type magnetic flow liquid, during maximum operating currenbt, the damping torque that damper provides is 20Nm.
The present invention does not address part and is applicable to prior art.
Claims (2)
1. a revolving type magnetic rheologic damper, this damper mainly comprises front cover, rear end cover, front field coil, rear field coil, rotor, bearing, seal ring, seal ring, magnetic partiting ring and shell; Described front cover and rear end cover are positioned at rotor both sides, and are connected with shell respectively, form stator; Between described rotor and front cover and rear end cover, place respectively bearing and seal ring, described front field coil is wound in front cover, rear field coil is wound in rear end cover, magnetic partiting ring is installed on respectively between front cover and shell and between rear end cover and shell, between magnetic partiting ring and shell, place respectively O type seal ring between magnetic partiting ring and front cover and rear end cover; The top of shell has the sealing liquid filling hole for adding magnetic flow liquid, in the cavity between stator and rotor, fills magnetic flow liquid; The winding direction that it is characterized in that described front field coil and rear field coil is identical, both tail ends join and are cascaded, both head ends connect respectively the both positive and negative polarity of power supply, two groups of field coils form two flux paths in parallel, load after direct current, produce two magnetic fields of opposite direction, the magnetic flux that its magnetic flux produces for single field coil.
2. revolving type magnetic rheologic damper according to claim 1, is characterized in that the work cylndrical surface diameter of described rotor is 70mm, and radial length is 32mm; The end face work toroidal surface internal diameter of rotor is 20mm, and external diameter is 70mm; The minimum thickness of shell is 7.8mm, working clearance 1mm; Front field coil is identical with rear excitation coil structure, is 230 circles, maximum operating currenbt 2A, maximal input 24W; Adopt the MRF-140CG of LORD company type magnetic flow liquid, during maximum operating currenbt, the damping torque that damper provides is 20Nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509450.4A CN102979847B (en) | 2012-12-03 | 2012-12-03 | Rotary type magneto-rheological damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509450.4A CN102979847B (en) | 2012-12-03 | 2012-12-03 | Rotary type magneto-rheological damper |
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| Publication Number | Publication Date |
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| CN102979847A CN102979847A (en) | 2013-03-20 |
| CN102979847B true CN102979847B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210509450.4A Expired - Fee Related CN102979847B (en) | 2012-12-03 | 2012-12-03 | Rotary type magneto-rheological damper |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779774A (en) * | 2015-04-19 | 2015-07-15 | 孙美娜 | Magnetic liquid micro torque difference buffering device |
| CN205503851U (en) * | 2015-12-31 | 2016-08-24 | 深圳市优宝惠新材料科技有限公司 | Controllable attenuator of speed |
| TWI588381B (en) * | 2016-08-05 | 2017-06-21 | Giant Mfg Co | Magnetorheological fluid rotary resistance device |
| DE102017103811A1 (en) | 2017-02-24 | 2018-08-30 | Inventus Engineering Gmbh | Suspension component with a rotary damper |
| DE102017103810A1 (en) * | 2017-02-24 | 2018-08-30 | Inventus Engineering Gmbh | rotary damper |
| DE102017103809A1 (en) | 2017-02-24 | 2018-08-30 | Inventus Engineering Gmbh | Prosthetic device with a rotary damper |
| CN108006139A (en) * | 2017-11-06 | 2018-05-08 | 武汉航空仪表有限责任公司 | A kind of damper for preventing from being revealed by temperature shock |
| CN108980260B (en) * | 2018-10-11 | 2024-04-02 | 中国船舶重工集团公司第七一三研究所 | Magnetorheological damper and magnetorheological fluid filling method |
| CN109578498A (en) * | 2018-10-11 | 2019-04-05 | 中国船舶重工集团公司第七�三研究所 | A kind of revolving type magnetic rheologic damper |
| CN110454525A (en) * | 2019-08-12 | 2019-11-15 | 南京理工大学 | Magneto-rheological grease brake for Robot elbow joint |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4031626A1 (en) * | 1989-10-10 | 1991-04-11 | Hemscheidt Maschf Hermann | Hydraulic shock absorber with at least one person - has cylinder, and drive unit mounted on rotary axle, with transmission piece |
| US5492312A (en) * | 1995-04-17 | 1996-02-20 | Lord Corporation | Multi-degree of freedom magnetorheological devices and system for using same |
| CN1575383A (en) * | 2001-10-25 | 2005-02-02 | 洛德公司 | Brake with field responsive material |
| CN2689492Y (en) * | 2004-04-02 | 2005-03-30 | 冯德礼 | Assembled wiring terminal of power supply wire |
| CN102767589A (en) * | 2012-07-02 | 2012-11-07 | 江苏科技大学 | Magneto-rheological damper adjustable in damping channel height |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08177939A (en) * | 1994-12-21 | 1996-07-12 | Tokico Ltd | Damping force adjusting type rotary damper |
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2012
- 2012-12-03 CN CN201210509450.4A patent/CN102979847B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4031626A1 (en) * | 1989-10-10 | 1991-04-11 | Hemscheidt Maschf Hermann | Hydraulic shock absorber with at least one person - has cylinder, and drive unit mounted on rotary axle, with transmission piece |
| US5492312A (en) * | 1995-04-17 | 1996-02-20 | Lord Corporation | Multi-degree of freedom magnetorheological devices and system for using same |
| CN1575383A (en) * | 2001-10-25 | 2005-02-02 | 洛德公司 | Brake with field responsive material |
| CN2689492Y (en) * | 2004-04-02 | 2005-03-30 | 冯德礼 | Assembled wiring terminal of power supply wire |
| CN102767589A (en) * | 2012-07-02 | 2012-11-07 | 江苏科技大学 | Magneto-rheological damper adjustable in damping channel height |
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| CN102979847A (en) | 2013-03-20 |
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Granted publication date: 20140507 Termination date: 20211203 |