CN202280786U - Multi-layer fixed polar plate flowing type current electrorheological damper - Google Patents
Multi-layer fixed polar plate flowing type current electrorheological damper Download PDFInfo
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- CN202280786U CN202280786U CN2011202698645U CN201120269864U CN202280786U CN 202280786 U CN202280786 U CN 202280786U CN 2011202698645 U CN2011202698645 U CN 2011202698645U CN 201120269864 U CN201120269864 U CN 201120269864U CN 202280786 U CN202280786 U CN 202280786U
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- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims description 28
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 2
- 238000013016 damping Methods 0.000 abstract description 13
- 238000012545 processing Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
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- 230000005684 electric field Effects 0.000 description 4
- 238000001311 chemical methods and process Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
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- 239000011162 core material Substances 0.000 description 1
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Abstract
The utility model discloses a multi-layer fixed polar plate flowing type current electrorheological damper, which belongs to the technical field of machinery and building structure vibration attenuation. The multi-layer fixed polar plate flowing type current electrorheological damper is characterized by comprising a main cylinder (4) and an auxiliary cylinder (18), wherein a piston (2) is arranged in the main cylinder by a piston rod (1); multiple pairs of circular-ring fixed polar plates are arranged in the main cylinder; all electrode plates are subjected to surface micropore pit processing with a physical or chemical method; positive plates (5) or negative plates (8) are all penetrated and connected by three positive bolts (6) or negative bolts (9) which are arranged at an equal angle of 120 degrees; the positive plates (5) or negative plates (8) penetrate through a main cylinder barrel body (4) to be fixedly connected with the main cylinder; and an equal-thickness spacing sleeve is respectively arranged among all electrode plates. The multi-layer fixed polar plate flowing type current electrorheological damper has the effect and the beneficial effect that multiple layers of polar plates subjected to pit processing increase the area of a damping path in limited space, slippage between giant electrorheological liquid and the surfaces of the polar plates is obviously lowered, and the multi-layer fixed polar plate flowing type current electrorheological damper has the advantages of simple construction, high response speed, light weight, small volume, big output and the like.
Description
Technical field
The utility model belongs to machinery and building structure antivibration area, relates to the application of er material, is specifically related to a kind of electro-rheological fluid damper.This device is mainly used in and reduces various machineries or building owing to vibration or impact the destruction that causes.
Background technique
Electro rheological fluids is to be scattered in a kind of suspension that forms in the base fluid by polarisable particle; Its viscosity, rheological behaviour can change with electric field strength etc. under the effect of extra electric field, can become viscoelastic fluid, semisolid fluid or even solid by flowing liquid very easily.The theoretical limit of tradition dielectric type ER fluid shear yield strength is 8kPa.Yet in the practical application, need ER fluid to have more intense yield strength or shear strength mostly, so the lower yield strength of dielectric type ER fluid has limited its application prospect.People such as Wen Weijia proposed a kind of novel giant electro-rheological liquid in 2003, and its shear strength surpasses 100kPa under 5kV/mm electric field strength, and this breakthrough is worth to the huge applications that people show electro rheological fluids.
In the process, vibration or impulsive load can have a strong impact on its Security and working life under arms for various buildings or mechanical structure.Structurally install can passive energy dissipation damping device be the effective means that reduces its vibration or shock response, increases its Security and stability.Traditional Passive Control damper (like hydraulic damper) only can provide uncontrollable damping force, and its vibration control effect is undesirable.The intelligent damper that employing electric/magnetic rheological system is equipped with can come through the adjusting to electricity/magnetic intensity to regulate damping force according to operating mode real-time continuous ground, thereby implementation structure vibrates or the active and half ACTIVE CONTROL of impact, prevents the failure damage of structure better.With respect to MR damper, be that the electro-rheological fluid damper of core material has that stability is high, simple in structure, the damping force regulation range big, respond advantages such as fast with the giant electro-rheological body.
According to working principle, electro-rheological fluid damper is divided into shear mode, flow pattern and composite mode.In actual engineering, require electro-rheological fluid damper that bigger damping force can be provided usually, this makes that the electro-rheological fluid damper volume and the quality of employing traditional structural design are bigger.In addition, the slippage between ER fluid and the damper electrode plate has restricted giving full play to of electro rheological fluids performance, causes actual damping force less than theoretical damping power.Therefore, be badly in need of that a kind of volume of exploitation is less, damping force is big, pole plate place does not have slippage, novel electrorheological damper simple in structure, to satisfy the needs of industrial development.
Summary of the invention
The purpose of the utility model provides a kind of multilayer fixed polar plate flowing type electro-rheological fluid damper, improving relative pole plate area, to eliminate ER fluid and the slippage of pole plate surface of contact, thereby under smaller volume, obtains bigger damping force.
Be to realize that above-mentioned purpose, the technological scheme of the utility model are many ring plate to be carried out the surface crater processing through chemistry or physical method, and in Master cylinder body, alternately be arranged in parallel.Positive and negative pole plate is all respectively fixed through 3 bolts and master cylinder stack shell, and is connected with the power supply positive and negative electrode respectively through bolt.Be full of ER fluid in the Master cylinder body, each equates the pole plate gap.Cylinder end caps and cylinder body are through being threaded, and liquid filling hole is left to inject ER fluid in end cap top.
The technological scheme of the utility model is following: the novel electrorheological damper is characterized in that: include master cylinder cylinder cap 11, master cylinder stack shell 4, front end proof and electric leakage-proof safety ring cowling 14, surface micropore pit positive plate 5, positive pole bolt 6, positive plate divides spacer 7, piston rod 1, piston 2, isolation layer 3, liquid filling hole 13, positive wire hole 12, rear end proof and electric leakage-proof safety ring cowling 17, surface micropore pit negative plate 8, negative pole bolt 9, negative plate to divide spacer 10, negative wire hole 16, dividing plate 15, secondary cylinder 18.Wherein, positive and negative ring pole plate alternating pairs is arranged, and can be designed to more than 2 pairs or 2 pairs.All positive plates 5 run through connection by 3 positive pole bolts 6 that are 120 ° of isogonisms arrangements, uniform thickness is set between each pole plate divides spacer 7.Positive pole bolt 6 runs through master cylinder stack shell 4 and is fixedly connected with master cylinder.Any one in positive wire and 3 the positive pole bolts is connected, passes through positive wire hole 12 and connect positive source.Front end proof and electric leakage-proof safety ring cowling 14 and master cylinder cylinder cap 11 are through being threaded.All negative plates 8 run through connection by 3 negative pole bolts 9 that are 120 ° of isogonisms arrangements, uniform thickness is set between each pole plate divides spacer 10.Negative pole bolt 9 runs through master cylinder stack shell 4 and is fixedly connected with master cylinder.Any one in cathode conductor and 3 the negative pole bolts is connected, passes through negative wire hole 16 and connect power cathode.Rear end proof and electric leakage-proof safety ring cowling 17 and dividing plate 15 are through being threaded.Piston rod 1 front end passes master cylinder cylinder cap 11 and extends master cylinder, and the rear end is passed dividing plate 15 and extended to secondary cylinder.Piston stretches out an end of master cylinder cylinder cap and the outside of secondary cylinder end head is provided with the earrings that is connected that can link to each other with structure respectively.If cylinder body adopts conductive material making such as metal, with master cylinder stack shell 4 contact positions isolation layer is set at positive pole bolt 6, negative pole bolt 9, in case cylinder body is charged.
Described piston rod 1 and piston 2 are circular cross-section; Master cylinder cylinder cap 11, front end proof and electric leakage-proof safety ring cowling 14, rear end proof and electric leakage-proof safety ring cowling 17, dividing plate 15, surface micropore pit positive plate 5, surface micropore pit negative plate 8, master cylinder stack shell 4, secondary cylinder 18 is the ring cross section.The positive/negative plate gap is 1～2mm, and is breakdown with the giant electro-rheological liquid of the pole plate that prevents to flow through in the master cylinder.
The outer rim of described master cylinder cylinder cap 11 exceeds master cylinder stack shell 4, and positive pole bolt 6 covers are gone into wherein; The outer rim of dividing plate 15 exceeds master cylinder stack shell 4, and negative pole bolt 9 covers are gone into wherein; Anticreep ring cowling 14 of front end and the anticreep ring cowling 17 in rear end are set with bolt 6 and bolt 9 complete closed again, avoid bolt to contact with extraneous.
Described giant electro-rheological liquid is that 5kV/mm electric field strength down cut intensity reaches the above ER fluid of 50kPa.
Described master cylinder can be different with secondary cylinder size, but need on same axis, and promptly center line and satisfies requirement of strength on same straight line.Secondary cylinder length should be more than or equal to the displacement distance of piston, in order to avoid the excessive and secondary cylinder bottom of piston displacement distance portion bumps.The giant electro-rheological liquid hand-hole is set on the master cylinder cylinder cap.
Effect of the utility model and benefit are to utilize the shear strength continuous reversible adjustability of giant electro-rheological liquid, according to vibrating or impact the damping force that operating mode provides real-time change, realize active, half active or Passive Control to machinery or building construction vibration.The pole plate of multiple-level surface pit processing has increased the area of damp channel in limited space; And significantly reduce the slippage between giant electro-rheological liquid and polar board surface, therefore, its damping force that provides improves greatly; Its characteristic satisfies the engineering demand that small volume is exerted oneself greatly, has practical significance.In a word, this damper have that simple structure, speed of response are fast, light weight, volume little, exert oneself big, low cost and other advantages.
Description of drawings
Fig. 1 is the axial sectional view of multilayer fixed polar plate flowing type electro-rheological fluid damper.
Fig. 2 is a multilayer fixed polar plate flowing type electro-rheological fluid damper transverse sectional view.
Fig. 3 is a multilayer fixed polar plate flowing type electro-rheological fluid damper front end partial enlarged drawing.
Fig. 4 is a multilayer fixed polar plate flowing type electro-rheological fluid damper middle part partial enlarged drawing.
Among the figure: 1 piston rod; 2 pistons; 3 isolation layers; 4 master cylinder stack shells; 5 positive plates; 6 positive pole bolts; 7 positive plates divide spacer; 8 negative plates; 9 negative pole bolts; 10 negative plates divide spacer; 11 master cylinder cylinder caps; 12 positive wire holes; 13 liquid filling holes; 14 front end proof and electric leakage-proof safety ring cowlings; 15 dividing plates; 16 negative wire holes; 17 rear end proof and electric leakage-proof safety ring cowlings; 18 secondary cylinder cylinder bodies.
Embodiment
Be described in detail the embodiment of the utility model below in conjunction with technological scheme and accompanying drawing.
The embodiment of the utility model is referring to Fig. 1～Fig. 4.Present embodiment mainly comprises master cylinder stack shell 4, master cylinder cylinder cap 11, many to surface micropore pit processing positive plate 5 and negative plate 8, dividing plate 15, piston rod 1, piston 2, subsidiary cylinder 18.Wherein, master cylinder stack shell 4, master cylinder cylinder cap 11, dividing plate 15 constitute master cylinder, and dividing plate 15, subsidiary cylinder 18 constitute secondary cylinder.The piston 2 that two ends are connected with piston rod 1 is arranged in the master cylinder, and the front end of piston rod 1 passes master cylinder cylinder cap 11 and extends master cylinder, can be connected with structure by connecting earrings; The rear end of piston rod 1 is passed dividing plate 15 and is extended to secondary cylinder 18, and 18 ends of secondary cylinder have earrings to be connected with structure.In master cylinder, be provided with manyly to positive/negative plate, form the multiple tracks damp channel, the damping gap is 1～2mm.Positive/negative plate adopts chemistry or physical method, carries out the processing of surface micropore pit.All positive plates 5 are positive pole bolt 6 connections that hexagonal angle distributes by three, and are connected fixing with master cylinder stack shell 4; 5 of each positive plates are provided with the branch spacer 7 of equal thickness, with the fixed polar plate position, prevent different pole plate contacts; Positive plate 5 guarantees liquid communication apart from master cylinder cylinder cap 11 distances 2～10mm; A positive pole bolt 6 is connected with lead, and lead passes with positive source through positive wire hole 12 and is connected.All negative plates 8 are negative pole bolt 9 connections that hexagonal angle distributes by three, and are connected fixing with master cylinder stack shell 4; 8 of each negative plates are provided with the branch spacer 10 of equal thickness, with the fixed polar plate position, prevent different pole plate contacts; Negative plate 8 guarantees liquid communication apart from dividing plate 15 distances 2～10mm, and a negative pole bolt 9 is connected with lead, and lead passes with power cathode through negative wire hole 16 and is connected.Be full of giant electro-rheological liquid in the master cylinder, master cylinder cylinder cap 11 is provided with liquid filling hole 13 to inject giant electro-rheological liquid.Between piston 2 and innermost layer pole plate isolation layer 3 is set.For preventing electric leakage; Master cylinder cylinder cap 11 and dividing plate 15 are greater than the diameter of Master cylinder body 4; And by the outer bolt 6 and bolt 9 covers are gone into to prevent that bolt from exposing, the anticreep ring cowling 14 of front end is set again positive pole bolt 6 is protected with negative pole bolt 9 fully with the anticreep ring cowling 17 in rear end.If Master cylinder body 4 is processed by conductive material, isolation layer is set in case leak-stopping with master cylinder stack shell 4 contact position at positive pole bolt 6, negative pole bolt 9.Secondary cylinder cylinder body 18 length should bump to prevent the excessive and secondary cylinder 18 of piston 2 displacement distances more than or equal to the displacement distance of piston 2.
Claims (3)
1. multilayer fixed polar plate flowing type electro-rheological fluid damper includes master cylinder cylinder cap (11), master cylinder stack shell (4), front end proof and electric leakage-proof safety ring cowling (14), surface micropore pit positive plate (5), positive pole bolt (6), positive plate and divides spacer (7), piston rod (1), piston (2), isolation layer (3), liquid filling hole (13), positive wire hole (12), rear end proof and electric leakage-proof safety ring cowling (17), surface micropore pit negative plate (8), negative pole bolt (9), negative plate to divide spacer (10), negative wire hole (16), dividing plate (15), secondary cylinder (18); It is characterized in that: positive and negative ring pole plate alternating pairs is arranged, and is designed to more than 2 pairs or 2 pairs; All positive plates (5) run through connection by 3 positive pole bolts (6) that are 120 ° of isogonisms arrangements, uniform thickness is set between each pole plate divides spacer (7); Positive pole bolt (6) runs through master cylinder stack shell (4) and is fixedly connected with master cylinder; Any one in positive wire and 3 the positive pole bolts is connected, passes through positive wire hole (12) and connect positive source; Front end proof and electric leakage-proof safety ring cowling (14) and master cylinder cylinder cap (11) are through being threaded; All negative plates (8) run through connection by 3 negative pole bolts (9) that are 120 ° of isogonisms arrangements, uniform thickness is set between each pole plate divides spacer (10); Negative pole bolt (9) runs through master cylinder stack shell (4) and is fixedly connected with master cylinder; Any one in cathode conductor and 3 the negative pole bolts is connected, passes through negative wire hole (16) and connect power cathode; Rear end proof and electric leakage-proof safety ring cowling (17) and dividing plate (15) are through being threaded; Piston rod (1) front end passes master cylinder cylinder cap (11) and extends master cylinder, and the rear end is passed dividing plate (15) and extended to secondary cylinder; Piston stretches out an end of master cylinder cylinder cap and the outside of secondary cylinder end head is provided with the earrings that is connected that links to each other with structure respectively; When conductive materials such as cylinder body employing metal are made, with master cylinder stack shell (4) contact position isolation layer is set at positive pole bolt (6), negative pole bolt (9), in case cylinder body is charged.
2. a kind of multilayer fixed polar plate flowing type electro-rheological fluid damper according to claim 1 is characterized in that: piston rod (1) and piston (2) are circular cross-section; Master cylinder cylinder cap (11), front end proof and electric leakage-proof safety ring cowling (14), rear end proof and electric leakage-proof safety ring cowling (17), dividing plate (15), surface micropore pit positive plate (5), surface micropore pit negative plate (8), master cylinder stack shell (4), secondary cylinder (18) is the ring cross section.
3. a kind of multilayer fixed polar plate flowing type electro-rheological fluid damper according to claim 1, it is characterized in that: master cylinder cylinder cap (11) outer rim exceeds master cylinder stack shell (4), and positive pole bolt (6) cover is gone into wherein; Dividing plate (15) outer rim exceeds master cylinder stack shell (4), and negative pole bolt (9) cover is gone into wherein; The anticreep ring cowling of anticreep ring cowling of front end (14) and rear end (17) is set with bolt (6) and bolt (9) complete closed again, avoids bolt to contact with extraneous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202698645U CN202280786U (en) | 2011-07-14 | 2011-07-14 | Multi-layer fixed polar plate flowing type current electrorheological damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202698645U CN202280786U (en) | 2011-07-14 | 2011-07-14 | Multi-layer fixed polar plate flowing type current electrorheological damper |
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| CN202280786U true CN202280786U (en) | 2012-06-20 |
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| CN2011202698645U Expired - Fee Related CN202280786U (en) | 2011-07-14 | 2011-07-14 | Multi-layer fixed polar plate flowing type current electrorheological damper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287476A (en) * | 2011-07-14 | 2011-12-21 | 大连理工大学 | Multilayer fixed pole plate fluid type electro-rheological damper |
| CN104141731B (en) * | 2014-08-25 | 2015-12-09 | 谭晓婧 | Single rod many damp tubes MR damper |
| CN109081400A (en) * | 2018-09-10 | 2018-12-25 | 南宁市桂润环境工程有限公司 | A kind of adjustable wastewater treatment electrolytic cell of pole span |
| CN111623080A (en) * | 2020-05-13 | 2020-09-04 | 嘉兴学院 | Engine torsional vibration damper based on magnetorheological grease |
-
2011
- 2011-07-14 CN CN2011202698645U patent/CN202280786U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287476A (en) * | 2011-07-14 | 2011-12-21 | 大连理工大学 | Multilayer fixed pole plate fluid type electro-rheological damper |
| CN104141731B (en) * | 2014-08-25 | 2015-12-09 | 谭晓婧 | Single rod many damp tubes MR damper |
| CN109081400A (en) * | 2018-09-10 | 2018-12-25 | 南宁市桂润环境工程有限公司 | A kind of adjustable wastewater treatment electrolytic cell of pole span |
| CN111623080A (en) * | 2020-05-13 | 2020-09-04 | 嘉兴学院 | Engine torsional vibration damper based on magnetorheological grease |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20140714 |
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| EXPY | Termination of patent right or utility model |