CN108105320A - A kind of magnetic rheological liquid damper sludge proof method and structure - Google Patents
A kind of magnetic rheological liquid damper sludge proof method and structure Download PDFInfo
- Publication number
- CN108105320A CN108105320A CN201711337891.XA CN201711337891A CN108105320A CN 108105320 A CN108105320 A CN 108105320A CN 201711337891 A CN201711337891 A CN 201711337891A CN 108105320 A CN108105320 A CN 108105320A
- Authority
- CN
- China
- Prior art keywords
- piston
- crank
- blade
- connecting rod
- revolute pair
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention discloses a kind of magnetic rheological liquid damper sludge proof method and structure, and using the linear motion of piston, driving crank generates rotation, sets blade on crank axle, the precipitation of magnetorheological fluid is prevented by the agitation of blade.Connecting rod one end of anti-sink structure is big end, and one end is small end, big stomidium biasing；The small end of connecting rod is rotatablely connected with piston bottom, and big end and the crank of connecting rod are rotatablely connected；Crank axle is fixed on stent, and the both ends of crank axle set blade；Stopple and the hole at piston base center screw cooperation.It is an advantage of the invention that：The linear reciprocating motion of piston can be converted into circular motion of the crank around revolute pair by the revolute pair that the revolute pair and connecting rod formed with connecting rod is formed with crank, blade is fixed in revolute pair, itself and revolute pair is made to be rotated with angular speed, then blade can stir surrounding fluid, it is made to flow, and can thus improve the stability of fluid, particularly with suspension fluid, effect becomes apparent, and this structure has the characteristics that size is small, not may require that larger installation space.
Description
Technical field
The present invention relates to a kind of engineering dampening apparatus, and in particular to a kind of blade agitating type using crank block principle
The structure design of anti-precipitation and the MR damper relied on magnetic field intensity.
Background technology
Magnetorheological fluid is a kind of controllable novel intelligent material of rheological behavior, when no external magnetic field acts on, with good
Good mobility, and after external magnetic field is applied, magnetorheological fluid can be within the time of Millisecond from magnetic-particle disorder distribution
State is transformed into chain or columnar microstructure along magnetic line of force direction, its apparent viscosity is made to increase more than two orders of magnitude, presents
The mechanical property of class solid.General semi_active MR damper is the working solution using magnetorheological fluid as damper, and is being hindered
Multiturn coil is wound on the piston of Buddhist nun's device, wherein the magnetic fields generated after stream are electrified in magnetorheological fluid, by regulating and controlling excitation
Electric current in coil changes the apparent viscosity of magnetorheological fluid, realizes the dynamic control to damping.It is being damped according to magnetorheological fluid
The difference of stress and liquid form in device, MR damper can be divided into again flowing, shearing, squeeze mode and this three
Any combination of kind pattern.The semi-active damper utensil that magnetorheological intellectual material makes, which has, responds fast, simple in structure, damping force company
It is continuous along it is inverse it is adjustable, the general passive damping device such as intelligent control or the unexistent advantage of vibration isolator are easily implemented in combination with computer, but
Still there is the suspended magnetic particles sedimentation in the space of piston top and the bottom in magnetorheological fluid, the fever weak heat-dissipating etc. that works long hours lacks
Point.
The content of the invention
In order to overcome suspension magnetic of the existing semi_active MR damper during operation in its chamber in magnetorheological fluid
Property particle sedimentation, work long hours fever weak heat-dissipating the defects of with deficiency, the present invention propose that a kind of application slider-crank mechanism is former
The reciprocating motion of piston itself is prevented magnetorheological liquid precipitate method and structure, particular technique by reason as the blade agitating type of driving source
Scheme is as follows：
A kind of magnetic rheological liquid damper sludge proof method, using the linear motion of piston, driving crank generates rotation, bent
Blade on arbor is set, the precipitation of magnetorheological fluid is prevented by the agitation of blade.
A kind of structure for realizing the method including casing wall, sets piston rod, coil and aluminium is set on piston rod in casing wall
Matter antifreeze plate, it is characterised in that：Anti-sink structure is further included, connecting rod one end of the anti-sink structure is big end, and one end is small end, greatly
Stomidium biases；The small end of connecting rod is rotatablely connected with piston bottom, and big end and the crank of connecting rod are rotatablely connected；Crank axle is fixed on
On stent, the both ends of crank axle set blade；Stopple and the hole at piston base center screw cooperation.
Before stopple and the centre bore of piston lower surface screw, metal-to-metal adhesive is scribbled on its surface, to prevent magnetorheological fluid from passing through
Both foregoing fit clearance generates leakage.
Gap is left between crank axle and stent.
It is an advantage of the invention that：The linear reciprocating motion of piston can by the revolute pair and connecting rod that are formed with connecting rod with
The revolute pair that crank is formed is converted into circular motion of the crank around revolute pair, and blade is fixed in revolute pair, makes itself and revolute pair
It being rotated with angular speed, then blade can stir surrounding fluid, it is made to flow, and can thus improve the stability of fluid,
Particularly with suspension fluid, effect becomes apparent.
Description of the drawings
Fig. 1 is the principle of the present invention schematic diagram；
Fig. 2 is the sectional view of assembly of the present invention；
Fig. 3 is the 3-D view of Fig. 2；
Fig. 4 be anti-sediment structure in the anti-precipitation magnetic rheological liquid damper of the blade agitating type described in Fig. 2 (rod-crank-
Supporting structure) 3-D view；
Fig. 5 is link mechanism figure；
In figure：1 piston rod, 2 upper end covers, 3 aluminum antifreeze plates (and be oriented to and use), 4 pistons (DT-4), 5 bottom covers, 6 casing walls,
7 hexagon-headed bolts (M3 × 10), 8 connecting rods, 9 axis one (connecting rod-piston axis), 10 bearings one (d3 × D5 × W2), 11B type flat keys,
12 bearings two (d4 × D7 × W2), 13 blades, 14T type cylindrical wedges, 15 crank axles, 16C type flat keys, 17 snap bolts (M3 × 6),
18 stents, 19 axis two (crank-pitman shaft), 20 bearings three (d3 × D5 × W1.5), 21 stopples, 22 sealing rings, in addition to external member
It is 45 steel that more than other parts, which do not note material, and 23 be wire guide, and 24 be magnet exciting coil, other marks are as schemed.In Fig. 1, sliding block D
Moved in a straight line using speed ν connecting rod AB driven to form rotation of the angular speed as ω around axis A, in Fig. 1, A, B, C are axis of rotation；
The dot of a large amount of random distributions in Fig. 3 represents magnetorheological fluid 25.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
The anti-precipitation magnetic rheological liquid damper of blade agitating type provided by the invention using crank block principle, blade agitation
In formula anti-sink structure, the small end of connecting rod 8 is fixed on the corresponding shaft part of axis 1 by Type B flat key 11, one 9 both ends of axis it is set
The inner ring of shaft part and bearing 1 is interference fitted；The big end of connecting rod 8 is interference fitted with the outer ring of bearing 3 20；Connecting rod 8 and bearing
3 20 composition entirely through inner ring interference fit be installed on the corresponding shaft part of axis 2 19, after crank shaft 15 pass through its crank
The set hole interference of section is mounted on the corresponding shaft part at 2 19 both ends of axis；Stent 18 is realized dynamic with crank axle 15 by bearing 2 12
Connection is wherein that tight joint coordinates between 2 12 outer ring of stent 18 and bearing, in the set shaft part and bearing 2 12 on crank axle
Circle interference fit；Stent 18 can be fixed on the commitment positions of bottom cover 5 by round end hexagon socket head cap screw 17；Blade 13 passes through C
Type flat key 16 is fixed on the set shaft part of crank axle 15, and generates axial displacement with T-shaped cylindrical wedge 14 limitation blade 13.So
It is formed stent-blade-anti-settling mechanism of crank axle-connecting rod as shown in Figure 4.When damper works, piston it is reciprocal straight
Line movement can be converted into the circumferential movement of crank axle by connecting rod, this so that the blade being mounted on crank axle is driven to make is whole
All or non-circumferential rotation type (the stroke size for depending on piston), and its rotation can stir and cause the stream of the magnetorheological fluid of surrounding
Dynamic, the stability of the magnetorheological fluid so to flow is just greatly improved, and then the generation that magnetorheological fluid is prevented to precipitate,
So just realize the design original intention of antisolvent precipitation.Moreover, the three-dimensional dimension of the installation space of said structure herein be only 31mm ×
24mm×26mm.Except above-mentioned composition in the anti-precipitation magnetic rheological liquid damper of the blade agitating type using crank block principle
Stent-blade-anti-settling mechanism of crank axle-connecting rod each part outside, matching relationship such as Fig. 2 of other parts is simultaneously described such as
Under：After the completion of coil winding on piston, stopple 21 and the hole of 4 bottom centre of piston screw cooperation；4 bottom ear shape knot of piston
Hole and the outer ring of bearing I 10 on structure are interference fitted；Piston 4, aluminum antifreeze plate 3 and piston rod 1 pass through set uniformly distributed bolt
7 pressings link together；Casing wall 6 is threadedly coupled with upper end cover 2, bottom cover 5 by the formation of bolt 7 of set distribution；Upper end cover 2
Between casing wall 6, between piston rod 1 and upper end cover 2, between piston rod 1 and aluminum antifreeze plate 3, aluminum antifreeze plate 3 and piston 4
Between, the commitment positions between bottom cover 5 and casing wall 6 are mounted on corresponding sealing ring 22.
Secondly, the surface of stopple 21 scribbles that be screwed with the centre bore of 4 lower surface of piston after metal-to-metal adhesive be to use metal-to-metal adhesive here
Purpose be to prevent magnetorheological fluid from passing through both foregoing fit clearance and generating leakage.
Again, minim gap is left between the crank section of crank axle 15 and stent 18, in order to avoid contact is generated between the two,
The final rotation for influencing blade 13.
Finally, given clearance is left between blade 13 and bottom cover 5, stent 18, in order to avoid interference is generated during movement.
The biasing of two center of circular hole is to be moved through better by linear motion varied curve to connecting rod shown in Fig. 5 up and down
The dead point generated in journey.
Claims (4)
- A kind of 1. magnetic rheological liquid damper sludge proof method, it is characterised in that：Utilize the linear motion of piston, driving crank production It is raw to rotate, blade is set on crank axle, the precipitation of magnetorheological fluid is prevented by the agitation of blade.
- 2. a kind of structure for realizing claim 1 the method including casing wall, sets piston rod, is set on piston rod in casing wall Coil and aluminum antifreeze plate, it is characterised in that：Further include anti-sink structure, connecting rod one end of the anti-sink structure is big end, one end For small end, big stomidium biasing；The small end of connecting rod is rotatablely connected with piston bottom, and big end and the crank of connecting rod are rotatablely connected；It is bent Arbor is fixed on stent, and the both ends of crank axle set blade；Stopple and the hole at piston base center screw cooperation.
- 3. structure according to claim 2, it is characterised in that：Before stopple 21 and the centre bore of 4 lower surface of piston screw, Its surface scribbles metal-to-metal adhesive, to prevent magnetorheological fluid from generating leakage by both foregoing fit clearance.
- 4. structure according to claim 2, it is characterised in that：Gap is left between crank axle and stent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711337891.XA CN108105320B (en) | 2017-12-14 | 2017-12-14 | A kind of magnetic rheological liquid damper sludge proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711337891.XA CN108105320B (en) | 2017-12-14 | 2017-12-14 | A kind of magnetic rheological liquid damper sludge proof structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108105320A true CN108105320A (en) | 2018-06-01 |
| CN108105320B CN108105320B (en) | 2019-06-25 |
Family
ID=62215945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711337891.XA Expired - Fee Related CN108105320B (en) | 2017-12-14 | 2017-12-14 | A kind of magnetic rheological liquid damper sludge proof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108105320B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343958A (en) * | 2020-11-03 | 2021-02-09 | 重庆大学 | Low-current large-damping-force magnetorheological damping device |
| CN112901703A (en) * | 2021-01-29 | 2021-06-04 | 重庆大学 | Prevent subsiding formula multilayer spiral polar plate attenuator based on huge electrorheological fluids |
| CN114251407A (en) * | 2021-11-18 | 2022-03-29 | 广西科技大学 | O-shaped rod type anti-precipitation magnetorheological damper |
| CN114251406A (en) * | 2021-11-18 | 2022-03-29 | 广西科技大学 | Rotary piston rod type anti-precipitation magnetorheological damper |
| CN115693567A (en) * | 2022-09-27 | 2023-02-03 | 山东大学 | Power transmission line magnetic negative stiffness semi-active broadband suppression energy consumption device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2102608U (en) * | 1991-08-23 | 1992-04-29 | 赵永安 | Device for delivering liquid fertilizer into irrigated field |
| CN101010498A (en) * | 2004-06-10 | 2007-08-01 | 陶特有限公司 | Reciprocating and rotary piston engine |
| EP2247872B1 (en) * | 2008-01-17 | 2012-04-25 | Hasse & Wrede GmbH | Viscous torsional vibration damper or viscous torsional vibration insulator for reducing torsional vibrations |
| CN202579799U (en) * | 2012-05-09 | 2012-12-05 | 杭州电子科技大学 | Magnetorheological damper capable of preventing magnetorheological fluid from depositing |
| CN202833832U (en) * | 2012-10-24 | 2013-03-27 | 成都市翻鑫家科技有限公司 | Magneto-rheological fluid shock absorber capable of preventing magneto-rheological fluid sediment |
| CN203681077U (en) * | 2014-01-22 | 2014-07-02 | 於辉 | Blackboard with washing and air drying and sewage circulating filtration functions |
-
2017
- 2017-12-14 CN CN201711337891.XA patent/CN108105320B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2102608U (en) * | 1991-08-23 | 1992-04-29 | 赵永安 | Device for delivering liquid fertilizer into irrigated field |
| CN101010498A (en) * | 2004-06-10 | 2007-08-01 | 陶特有限公司 | Reciprocating and rotary piston engine |
| EP2247872B1 (en) * | 2008-01-17 | 2012-04-25 | Hasse & Wrede GmbH | Viscous torsional vibration damper or viscous torsional vibration insulator for reducing torsional vibrations |
| CN202579799U (en) * | 2012-05-09 | 2012-12-05 | 杭州电子科技大学 | Magnetorheological damper capable of preventing magnetorheological fluid from depositing |
| CN202833832U (en) * | 2012-10-24 | 2013-03-27 | 成都市翻鑫家科技有限公司 | Magneto-rheological fluid shock absorber capable of preventing magneto-rheological fluid sediment |
| CN203681077U (en) * | 2014-01-22 | 2014-07-02 | 於辉 | Blackboard with washing and air drying and sewage circulating filtration functions |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343958A (en) * | 2020-11-03 | 2021-02-09 | 重庆大学 | Low-current large-damping-force magnetorheological damping device |
| CN112901703A (en) * | 2021-01-29 | 2021-06-04 | 重庆大学 | Prevent subsiding formula multilayer spiral polar plate attenuator based on huge electrorheological fluids |
| CN114251407A (en) * | 2021-11-18 | 2022-03-29 | 广西科技大学 | O-shaped rod type anti-precipitation magnetorheological damper |
| CN114251406A (en) * | 2021-11-18 | 2022-03-29 | 广西科技大学 | Rotary piston rod type anti-precipitation magnetorheological damper |
| CN114251406B (en) * | 2021-11-18 | 2024-03-15 | 广西科技大学 | Rotary piston rod type anti-sedimentation magnetorheological damper |
| CN115693567A (en) * | 2022-09-27 | 2023-02-03 | 山东大学 | Power transmission line magnetic negative stiffness semi-active broadband suppression energy consumption device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108105320B (en) | 2019-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108105320A (en) | A kind of magnetic rheological liquid damper sludge proof method and structure | |
| US10451142B2 (en) | Outer cup rotary axial eddy current damper | |
| CN101576141B (en) | Longitudinal linear vibration inhibiting method and device based on rotary magnetorheological device | |
| CN206830715U (en) | Double magnetic fields MR dampers with mixing fluid course | |
| CN1587738A (en) | Inverse type magnetic flow damper | |
| CN106594159B (en) | A kind of magneto-rheological combined suspension for realizing three-dimensional vibration isolation | |
| CN207333558U (en) | The type hybrid damper that MR damper and eddy current damper are composed | |
| CN109826903B (en) | Bottom channel magneto-rheological damper with sedimentation active dispersing device | |
| CN109723750B (en) | Magneto-rheological damper piston assembly with settlement active dispersing device | |
| CN109210128A (en) | Rack pinion disc type MR fluid shock absorber | |
| CN107606041A (en) | The type hybrid damper that MR damper and eddy current damper combine | |
| CN209483857U (en) | A kind of double rod magnetic rheological liquid dampers | |
| CN108561486A (en) | A kind of novel anti-settling magnetic rheological liquid damper | |
| CN102297228A (en) | Double-rod multidisc-piston magnetorheological fluid damper | |
| CN108591343A (en) | A kind of externally-wound type MR damper of cylinder barrel positioning | |
| CN105156574A (en) | Single-rod variable-cylinder-body passive single-control variable-damping magnetorheological damper | |
| CN102367858A (en) | Magneto-rheological friction type hybrid damper | |
| CN107120378A (en) | A kind of new-type magneto-rheological vibration damper | |
| CN202220821U (en) | Magneto-rheological type and friction type mixed damper | |
| CN113513558B (en) | High-output-force vibration isolation suspension based on hybrid damping mode | |
| CN107269757A (en) | A kind of MR fluid shock absorber of Direct Action Type rigidity controllable | |
| KR102530932B1 (en) | Damper equipped with anti-sedimentation apparatus | |
| CN106499769B (en) | It is a kind of to shear and squeeze MR fluid shock absorber under tandem working pattern | |
| CN108571559A (en) | A kind of damper means of stiffness variable adaptive damping | |
| CN208519107U (en) | A kind of revolving type magnetic rheologic bump leveller of more fluid courses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190625 Termination date: 20211214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |