CN101482158A - Shearing valve type magneto-rheological fluid damping vibration absorber - Google Patents
Shearing valve type magneto-rheological fluid damping vibration absorber Download PDFInfo
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- CN101482158A CN101482158A CNA2009100247183A CN200910024718A CN101482158A CN 101482158 A CN101482158 A CN 101482158A CN A2009100247183 A CNA2009100247183 A CN A2009100247183A CN 200910024718 A CN200910024718 A CN 200910024718A CN 101482158 A CN101482158 A CN 101482158A
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Abstract
The invention relates to a shear valve type magneto-rheological liquid damping shock absorber and aims at providing a shear valve type magneto-rheological liquid damping shock absorber with uniformly distributed magnetic pole pair and magnetic field. The technical proposal is as follows: a shear valve type magneto-rheological liquid damping shock absorber consists of a piston shaft, a working cylinder and an excitation structure; in the excitation structure, a plurality of coil slots are axially arranged on the working cylinder wall of the shock absorber; an electromagnetic wire is coiled in a chain way into grouped excitation coils; the excitation coils are connected from beginning to end or from end to beginning in obverse connection, and are embedded in the coil slot on the cylinder wall axially by monolayer along the working cylinder with the pitch of one slot; therefore, each coil group forms two magnetic poles; adjacent coil groups form magnetic poles of the same nature; coil sides in adjacent slots are provided with inverse current; and each coil side generates a closed magnetic loop through the piston shaft, the working cylinder and the gap.
Description
Technical field
The present invention relates to the structural vibration control device, is specifically related to a kind of shearing valve type magneto-rheological fluid damping shock absorption device that is used for engineering fields such as vehicle, building, bridge.
Background technique
Magnetic structure in the magneto-rheological fluid damping vibration absorber is the important step of vibration damper, and its structural type is determining the service behaviour of vibration damper.In recent years, shearing valve type magneto-rheological fluid damping vibration absorber is as the main flow of magnetic flow liquid vibration damping equipment, and its magnetic structure is mainly radially wrap style structure of the multistage coil of piston shaft.The axially inhomogeneous and segmentation distribution of inside exciting field by multistage coil causes both had been unfavorable for magnetic rheology effect, had limited the axial expansion of multistage coil again; And move with piston shaft in magnetic field, increased the unstability of piston shaft motion.Above-mentioned defective is to need the problem of solution in the shearing valve type magneto-rheological fluid damping vibration absorber badly.
Summary of the invention
The objective of the invention is to, overcoming above-mentioned defective provides a kind of pole pair and magnetic field equally distributed shearing valve type magneto-rheological fluid damping vibration absorber.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of shearing valve type magneto-rheological fluid damping vibration absorber, by piston shaft, clutch release slave cylinder and excitation structure are formed, described excitation structure comprises, work casing wall upper edge at vibration damper is axially arranged with several coil grooves, electromagnetic wire turns to the field coil of grouping by chain type, field coil head and the tail or tail head are just contacting and are connecing, in to be 1 groove along the axial individual layer of clutch release slave cylinder embed coil groove on casing wall by pitch, each coil groups forms two magnetic poles like this, the adjacent windings group forms like pole, coil side in the adjacent slot is back current each other, and each coil side passes through piston shaft, clutch release slave cylinder and gap produce a closed magnetic loop.
As a further improvement on the present invention, damping gap location in each coil notch correspondence, by width of rebate a diamagnetic partition is set, partition thickness is the damping clearance height, so both can eliminate in the damping gap the disadvantageous leakage field of magnetic rheology effect district, cylinder ring form drag Buddhist nun separated can being become second nature again verifies claims identical field region, and each interregional being independent of each other; Minimum because of the damping clearance height, magnetic structure can be approximately several parallel flat field regions in place, damping gap exciting field, and this is highly beneficial to magnetic rheology effect.This excitation structure is called the axial coiling magnetic structure of multitudinous utmost point formula clutch release slave cylinder.
The beneficial effect of example of the present invention is: excitation structure of the present invention is that a kind of work casing wall is organized the magnetic structure of coil axes to wrap style more, the grouping of the field coil of this structure, symmetry, evenly be embedded in the coil groove on the work casing wall, just can form the pole pair that distributes symmetrically and evenly like this on the casing wall, the cylinder annular gap area that pole pair is axial along casing wall and piston shaft is circumferential produces equally distributed magnetic field.Magnetic structure can make full use of whole piston shaft length, can in the circumferential cylinder ring form drag of piston shaft Buddhist nun gap, form the magnetic field that distributes symmetrically and evenly again, institute's exciting field is axial and the circumferentially even continuous distributed of piston shaft along the mobile direction of magnetic flow liquid in each gap, and do not move with piston shaft, both useful magnetic rheology effect, favourable again piston shaft robust motion.Simultaneously, exert oneself and increase the piston shaft effective length with expansion work, magnetic field homogeneity is at all unaffected.
Description of drawings
Fig. 1 is the magnetic structure figure of the embodiment of the invention 1.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is vertical half sectional view of Fig. 1.
Fig. 4 is the horizontal partial sectional view of Fig. 3.
Among the figure: 1. piston shaft, 2. field coil, 3. clutch release slave cylinder, 4. coil groove, 5. gap, 6. diamagnetic partition, 7. magnetic pole yoke, 8. wire outlet hole.
Embodiment
Further specify the present invention is novel below in conjunction with drawings and Examples.
As Fig. 1, piston shaft 1 adopts two rod structures, and field coil 2 divides into groups, is embedded in admittedly symmetrically in the coil groove 4 on clutch release slave cylinder 3 casing walls, lays the leakage field district that a non-magnetic diamagnetic partition 6 reduces the gap at 5 places, gap of notch correspondence.The adjacent slot interior loop passes to reverse field current, and field coil 2 just produces closed magnetic loop by piston shaft 1, clutch release slave cylinder 3, gap 5, and 5 places form magnetic field in the gap.
As shown in Figure 2, in the axial coiling magnetic structure of the multitudinous utmost point formula clutch release slave cylinder of the 2p utmost point (p is the magnetic pole logarithm), on clutch release slave cylinder 3 casing walls, offer coil groove 4 vertically, the coil groove shape is pressed Fig. 1 and shown in Figure 3, promptly allow the adjacent slot walls of adjacent two grooves parallel to each other, can guarantee that like this magnetic pole yoke 7 sizes on the casing wall are radially constant, also help the constraint electromagnetic wire.Field coil 2 head and the tail or tail head just contacted to be connect, and is that 1 groove individual layer embeds in the online ring recess 4 by pitch, and coil the end of a thread is drawn by wire outlet hole 8 shown in Figure 3.5 places, gap at each coil notch are provided with a diamagnetic partition 6 by width of rebate on piston shaft 1, partition thickness is cylinder annular clearance height.When passing to direct current to coil groups, the coil side in the adjacent slot is back current each other, and each field coil 2 produces two magnetic poles like this, and adjacent windings forms like pole, and each coil side forms a closed magnetic loop.The diamagnetic partition 6 that is arranged on the notch gap location had both been eliminated leakage field district unhelpful to magnetic rheology effect in the gap, and separated is become second nature verifies again claims identical field region, and each interregional being independent of each other.Minimum because of the damping clearance height, magnetic structure forms the magnetic field that distributes symmetrically and evenly and is approximately several parallel flat field regions in piston shaft 1 circumferential cylinder annular space 5.These field regions are highly profitable favourable again piston shaft 1 robust motion along the flow even continuous distributed of direction and not moving with piston shaft of magnetic flow liquid to magnetic rheology effect.The magneto-rheological fluid damping vibration absorber of this magnetic structure is exerted oneself and is increased the structure effective length based on expansion work, and magnetic field homogeneity is also unaffected.
In Fig. 3, wire outlet hole 8 is opened on the casing wall of certain middle position, coil groove 4 bottom.
Claims (4)
1. shearing valve type magneto-rheological fluid damping vibration absorber, by piston shaft, clutch release slave cylinder and excitation structure are formed, it is characterized in that: described excitation structure comprises, work casing wall upper edge at vibration damper is axially arranged with several coil grooves, electromagnetic wire turns to the field coil of grouping by chain type, field coil head and the tail or tail head are just contacting and are connecing, in to be 1 groove along the axial individual layer of clutch release slave cylinder embed coil groove on casing wall by pitch, each coil groups forms two magnetic poles like this, the adjacent windings group forms like pole, coil side in the adjacent slot is back current each other, and each coil side passes through piston shaft, clutch release slave cylinder and gap produce a closed magnetic loop.
2. vibration damper according to claim 1 is characterized in that: at the damping gap location of described each coil notch correspondence, by width of rebate the diamagnetic partition that a thickness is the damping clearance height is set.
3. vibration damper according to claim 1 is characterized in that: described piston shaft adopts two rod structures.
4. vibration damper according to claim 1 is characterized in that: wire outlet hole is located on the casing wall of coil groove bottom middle position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100247183A CN101482158B (en) | 2009-02-11 | 2009-02-11 | Shearing valve type magneto-rheological fluid damping vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100247183A CN101482158B (en) | 2009-02-11 | 2009-02-11 | Shearing valve type magneto-rheological fluid damping vibration absorber |
Publications (2)
| Publication Number | Publication Date |
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| CN101482158A true CN101482158A (en) | 2009-07-15 |
| CN101482158B CN101482158B (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100247183A Expired - Fee Related CN101482158B (en) | 2009-02-11 | 2009-02-11 | Shearing valve type magneto-rheological fluid damping vibration absorber |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104999344A (en) * | 2015-08-17 | 2015-10-28 | 宇环数控机床股份有限公司 | Magnetic field generator of magnetorheological polishing equipment |
| CN107606037A (en) * | 2017-10-31 | 2018-01-19 | 华东交通大学 | A kind of MR damper for improving damping force and fail safe |
| CN108071731A (en) * | 2018-02-01 | 2018-05-25 | 华东交通大学 | A kind of magnetorheological bump leveller using multiple magnet exciting coil radial arrangements |
| CN109404476A (en) * | 2018-12-14 | 2019-03-01 | 哈尔滨工程大学 | A kind of embedded multi-channel shunt runner MR damper |
| CN109838493A (en) * | 2019-04-12 | 2019-06-04 | 宴晶科技(北京)有限公司 | A kind of MR damper of more magnetic couple stator structures |
| CN112923001A (en) * | 2021-01-29 | 2021-06-08 | 中国劳动关系学院 | Circumferential excitation magnetorheological damper |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278412B (en) * | 2011-07-08 | 2013-07-17 | 华侨大学 | Shear type magnetorheological buffer compensator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2525303Y (en) * | 2002-01-07 | 2002-12-11 | 欧进萍 | Shear valvetype magnetic flux changing liquid damping driver |
| US6637556B1 (en) * | 2002-08-05 | 2003-10-28 | Delphi Technologies, Inc. | Magneto-rheological damper with grooved fluid passages |
| CN100478581C (en) * | 2007-09-18 | 2009-04-15 | 重庆大学 | Parallel type vibration isolation buffer based on magneto-rheological technology |
-
2009
- 2009-02-11 CN CN2009100247183A patent/CN101482158B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104999344A (en) * | 2015-08-17 | 2015-10-28 | 宇环数控机床股份有限公司 | Magnetic field generator of magnetorheological polishing equipment |
| CN107606037A (en) * | 2017-10-31 | 2018-01-19 | 华东交通大学 | A kind of MR damper for improving damping force and fail safe |
| CN107606037B (en) * | 2017-10-31 | 2024-02-02 | 华东交通大学 | Magnetorheological damper capable of improving damping force and failure safety |
| CN108071731A (en) * | 2018-02-01 | 2018-05-25 | 华东交通大学 | A kind of magnetorheological bump leveller using multiple magnet exciting coil radial arrangements |
| CN108071731B (en) * | 2018-02-01 | 2024-03-01 | 华东交通大学 | Magnetorheological vibration absorber adopting radial arrangement of multiple exciting coils |
| CN109404476A (en) * | 2018-12-14 | 2019-03-01 | 哈尔滨工程大学 | A kind of embedded multi-channel shunt runner MR damper |
| CN109404476B (en) * | 2018-12-14 | 2020-11-03 | 哈尔滨工程大学 | Embedded multi-channel bypass flow channel magnetorheological damper |
| CN109838493A (en) * | 2019-04-12 | 2019-06-04 | 宴晶科技(北京)有限公司 | A kind of MR damper of more magnetic couple stator structures |
| CN109838493B (en) * | 2019-04-12 | 2021-05-07 | 宴晶科技(北京)有限公司 | Magneto-rheological damper with multi-magnetic-couple stator structure |
| CN112923001A (en) * | 2021-01-29 | 2021-06-08 | 中国劳动关系学院 | Circumferential excitation magnetorheological damper |
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| Publication number | Publication date |
|---|---|
| CN101482158B (en) | 2011-05-04 |
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Granted publication date: 20110504 Termination date: 20180211 |