CN205479099U - Magnetic current becomes elastomer isolator based on draw under pressure - shear mode - Google Patents
Magnetic current becomes elastomer isolator based on draw under pressure - shear mode Download PDFInfo
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- CN205479099U CN205479099U CN201620024432.0U CN201620024432U CN205479099U CN 205479099 U CN205479099 U CN 205479099U CN 201620024432 U CN201620024432 U CN 201620024432U CN 205479099 U CN205479099 U CN 205479099U
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- elastic body
- iron core
- rheology elastic
- magnetic rheology
- elastomer
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Abstract
The utility model discloses a based on drawing the pressure magnetic current under the shear mode becomes the elastomer isolator, including the screw rod, cut magnetic current and become the elastomer, the coil, coil skeleton, compression magnetic current becomes elastomer, frame, iron core. Rectangular frame's cylindrical inner hole has bondd the annular in proper order and has cuted magnetic current and become elastomer and cylindrical iron core, and compression magnetic current becomes the elasticity upper end and bonds respectively with the lower extreme and go up iron core and lower iron core, upper and lower iron core symmetric placement, the last winding of coil skeleton has excitation coil, and fixed connection is inside rectangular frame, and bilateral symmetry places, coil, rectangular frame, shearing magnetic current become elastomer, iron core and compression magnetic current and become elastomer formation closed magnetic circuit, around the isolator circular telegram, magnetic current becomes the holistic elastic modulus of elastomer and changes to play the effect of vibration isolation. The utility model discloses can make the shearing compression magnetic current becomes the holistic elastic modulus excursion of elastomer and reaches more than several times of elastomer of single -mode magnetic current change, the problem of the magnetic current that exists of prior art to become elastomer elastic modulus excursion little, the damping effect is poor is solved. The utility model discloses application scope is wide, can satisfy and use under the large amplitude vibration source condition, and the controllability is good, has better damping effect.
Description
Technical field
This utility model relates to a kind of vibration isolator, particularly relates to a kind of MR elastomer vibration isolator being based under tension and compression-shear mode.
Background technology
Magnetic rheology elastic body is a Ge Xin branch of magnetorheological materials.It is mixed the composite formed by the ferromagnetic particle of high molecular polymer and micron dimension.Magnetic rheology elastic body is curing molding under magnetic field, and in its solidification process, ferromagnetic particle forms chain structure under the influence of a magnetic field, and this particle chain structure is cured in high molecular polymer, defines a kind of inside and has the elastomer of magnetic-particle chain structure.
Magnetic rheology elastic body has the unique features such as response rapid, controllability, reversibility, simple in construction, low cost, good stability, make magnetic rheology elastic body in machine driving, vibration damping and vibration isolation, shows powerful application potential in the mechanical field such as robot and Intelligent Actuator.
In prior art, often there is the elastic modulus change narrow range of magnetic rheology elastic body, the phenomenons such as vibration isolating effect is undesirable.Reason is that MR elastomer vibration isolator typically uses single shear mode and the version of single compact model, use the MR elastomer vibration isolator of shear mode, after installing by vibration insolation means, due to by vibration insolation means action of gravity, magnetic rheology elastic body can occur corresponding static strain, owing to this strain existence can cause vibration insulation structure working range to reduce.Use the MR elastomer vibration isolator of compact model, under under compact model, magnetorheological elastomer material storage modulus is shear mode 3-5 times, use compact model can be greatly reduced Structural Static strain, but use merely compact model little compared with only with shear mode vibration isolator stiffness variable scope under same magnetic induction, the elastic modulus change narrow range of magnetic rheology elastic body, vibration isolating effect is the most undesirable.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of simple in construction, elastic modelling quantity range of accommodation freely, good a kind of based on the MR elastomer vibration isolator under tension and compression-shear mode of vibration isolating effect.
This utility model be employed technical scheme comprise that for achieving the above object, a kind of based on the MR elastomer vibration isolator under tension and compression-shear mode, it is characterized in that, including screw rod, shear magnetic rheology elastic body, coil, coil rack, compression magnetic rheology elastic body, framework, iron core；
Affiliated framework is rectangular frame, respectively has a cylindrical hole at framework upper, lower middle position；Described cylindrical hole inwall bonds with described shearing magnetic rheology elastic body；Described shearing magnetic rheology elastic body is cirque structure, is divided into shearing magnetic rheology elastic body and down cut magnetic rheology elastic body；Described shearing magnetic rheology elastic body is internal to bond with described iron core；Described iron core is cylindrical structural, is divided into upper core and lower core, described iron core one end to have screwed hole, be connected with described screw rod；Described screw rod quantity is two, is divided into screw rod and lower screw rod；The described iron core other end is bondd by sulfuration with compression magnetic rheology elastic body；Described cylindrical hole, shearing magnetic rheology elastic body, screw rod and iron core quantity are two, placement symmetrical above and below；Described coil winding is on described coil rack, and is connected with external power source；It is equal two that described coil rack is bonded in described lower portion, described coil and described coil rack quantity, symmetrical placement；Described coil, described framework, described shearing magnetic rheology elastic body, described iron core and described compression magnetic rheology elastic body form closed magnetic circuit.Described shearing magnetic rheology elastic body is identical with magnetic direction with the ferromagnetic particle chain within compression magnetic rheology elastic body；Described screw rod is non-magnet material.
What technique scheme was directly brought has the technical effect that, described based on the MR elastomer vibration isolator under tension and compression-shear mode, before and after energising, the elastic modulus change scope of magnetic rheology elastic body is big, having more preferable effectiveness in vibration suppression, controllability is more preferable, operation is easier；
It should be understood that in described technical scheme, " described shearing magnetic rheology elastic body is identical with magnetic direction with the ferromagnetic particle chain within compression magnetic rheology elastic body ", its objective is, it is ensured that magnetic rheology elastic body is after externally-applied magnetic field, and it is internally formed stable ferromagnetic particle chain.
When the described MR elastomer vibration isolator based under tension and compression-shear mode works, described upper screw rod and lower screw rod contact with vibration source with by vibration insolation means respectively.
Preferably, described bolt material is pyrite, can reduce the leakage field of magnetic circuit.
Preferably, described shearing magnetic rheology elastic body and compression magnetic rheology elastic body are the magnetic rheology elastic body of adaptive deformation, in the case of ensureing that MR elastomer vibration isolator is said structure, magnetic rheology elastic body can be changed into the magnetic rheology elastic body of adaptive deformation, so can improve the performance of magnetic rheology elastic body, expand its range.
Preferably, described iron core material is pure iron, described framework material is 45 steel, pure iron permeability is far above 45 steel, ensure the magnetic field that described coil produces, preferential by iron core and magnetic rheology elastic body, make described coil, described framework, described shearing magnetic rheology elastic body, described iron core and described compression magnetic rheology elastic body form closed magnetic circuit, and reduce the leakage field of magnetic circuit.
In sum, this utility model is relative to prior art, have the beneficial effect that this utility model uses a kind of based on the MR elastomer vibration isolator under tension and compression-shear mode, before and after energising, the elastic modulus change scope of magnetic rheology elastic body entirety is big, can reach more than the several times of single-mode magnetic rheology elastic body, use under the conditions of can meeting large-amplitude vibration source, there is more preferable effectiveness in vibration suppression, thus, controllability is more preferable, operation is easier；And the magnetic leakage of whole magnetic circuit is few, magnetic loss is little, thus vibration isolator good operating stability, service life is long.
Accompanying drawing explanation
Fig. 1 is internal structure schematic diagram of the present utility model；
Fig. 2 is three-dimensional profile figure of the present utility model.
In accompanying drawing: 1. screw rod, 2. shear magnetic rheology elastic body, 3. coil, 4. coil rack, 5. compression magnetic flow liquid, 6. framework, 7. iron core.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described in detail.
As shown in Figure 1 and Figure 2, a kind of based on magnetic rheology elastic body with the vibration isolator of magnetic flow liquid, it is characterised in that to include screw rod 1, shear magnetic rheology elastic body 2, coil 3, coil rack 4, compress magnetic rheology elastic body 5, framework 6, iron core 7.
Described framework 6 is rectangular frame, respectively has a cylindrical hole at framework upper, lower middle position；Described cylindrical hole inwall bonds with described shearing magnetic rheology elastic body 2, and described shearing magnetic rheology elastic body 2 is cirque structure, is divided into shearing magnetic rheology elastic body and down cut magnetic rheology elastic body；Described shearing magnetic rheology elastic body 2 is internal to bond with described iron core 7；Described iron core 7 is cylindrical structural, is divided into upper core and lower core, described iron core 7 one end to have screwed hole, be connected with described screw rod 1；Described screw rod 1 quantity is two, is divided into screw rod and lower screw rod；Described iron core 7 other end is bondd by sulfuration with described compression magnetic rheology elastic body 5；Described cylindrical hole, shearing magnetic rheology elastic body 2, screw rod 1 and iron core 7 are two, placement symmetrical above and below；Described coil 3 is wound on described coil rack 4, and is connected with external power source；It is internal that described coil rack 4 is bonded in described framework 6, and described coil 3 and described coil rack 4 quantity are equal two, symmetrical placement；Described coil 3, described framework 6, described shearing magnetic rheology elastic body 2, described iron core 7 and described compression magnetic rheology elastic body 5 form closed magnetic circuit.Described shearing magnetic rheology elastic body 2 is identical with magnetic direction with the ferromagnetic particle chain within compression magnetic rheology elastic body 5.Described screw rod 1 material is pyrite；Described iron core 7 material is pure iron；Described framework 6 material is 45 steel.
When the described MR elastomer vibration isolator based under tension and compression-shear mode works, described upper screw rod and lower screw rod contact with vibration source with by vibration insolation means respectively.
It should be understood that in described technical scheme, " described shearing magnetic rheology elastic body is identical with magnetic direction with the ferromagnetic particle chain within compression magnetic rheology elastic body ", its objective is, it is ensured that magnetic rheology elastic body is after externally-applied magnetic field, and it is internally formed stable ferromagnetic particle chain.
In described technical scheme, " described iron core material is pure iron; described framework material is 45 steel ", its objective is, pure iron permeability is far above 45 steel, it is ensured that the magnetic field that described coil produces, preferential by iron core and magnetic rheology elastic body, make described coil, described framework, described shearing magnetic rheology elastic body, described iron core and described compression magnetic rheology elastic body form closed magnetic circuit, and reduce the leakage field of magnetic circuit.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted, and all these modifications and variations all should be belonged to protection domain of the present utility model.
Claims (1)
1. one kind based on the MR elastomer vibration isolator under tension and compression-shear mode, it is characterised in that includes screw rod, shear magnetic rheology elastic body, coil, coil rack, compression magnetic rheology elastic body, framework, iron core；
Described framework is rectangular frame, respectively has a cylindrical hole at framework upper, lower middle position；Shearing magnetic rheology elastic body it is bonded with in described cylindrical hole；Described shearing magnetic rheology elastic body is cirque structure, is divided into shearing magnetic rheology elastic body and down cut magnetic rheology elastic body；Described shearing magnetic rheology elastic body internal bond iron core；Described iron core is cylindrical structural, is divided into upper core and lower core；Described screw rod quantity is two, is divided into screw rod and lower screw rod；Described iron core one end has screwed hole, is connected with described screw rod；The described iron core other end is bondd by sulfuration with compression magnetic rheology elastic body；Described cylindrical hole, shearing magnetic rheology elastic body, screw rod and iron core quantity are two, placement symmetrical above and below；Described coil winding is on described coil rack, and is connected with external power source；Described coil rack is bonded in described lower portion, described coil and described coil rack quantity and is two, symmetrical placement；Described coil, described framework, described shearing magnetic rheology elastic body, described iron core and described compression magnetic rheology elastic body form closed magnetic circuit；Described shearing magnetic rheology elastic body is identical with magnetic direction with the ferromagnetic particle chain within compression magnetic rheology elastic body；Described screw rod material is pyrite；Described iron core material is pure iron；Described framework material is 45 steel；When the described MR elastomer vibration isolator based under tension and compression-shear mode works, described upper screw rod connecting with by vibration insolation means, lower screw rod connects with vibration source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620024432.0U CN205479099U (en) | 2016-01-12 | 2016-01-12 | Magnetic current becomes elastomer isolator based on draw under pressure - shear mode |
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| CN201620024432.0U CN205479099U (en) | 2016-01-12 | 2016-01-12 | Magnetic current becomes elastomer isolator based on draw under pressure - shear mode |
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| CN205479099U true CN205479099U (en) | 2016-08-17 |
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| CN201620024432.0U Expired - Fee Related CN205479099U (en) | 2016-01-12 | 2016-01-12 | Magnetic current becomes elastomer isolator based on draw under pressure - shear mode |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106737202A (en) * | 2016-12-26 | 2017-05-31 | 株洲九方装备股份有限公司 | A kind of machining magnetic field shielding method and device containing permanent magnet workpiece |
| CN107191529A (en) * | 2017-03-27 | 2017-09-22 | 上海交通大学 | A kind of magnetic rheology elastic body thrust bearing pedestal dynamic vibration absorber and application method |
| CN107524741A (en) * | 2017-07-28 | 2017-12-29 | 上海工程技术大学 | A kind of magnetic rheology elastic body suspension members for wheel hub motor |
| CN108317207A (en) * | 2018-04-13 | 2018-07-24 | 西安科技大学 | The MR elastomer vibration isolator of the multi-direction vibration control of vertical-horizontal can be achieved |
| CN108871976A (en) * | 2018-04-10 | 2018-11-23 | 南京理工大学 | A kind of shearing performance test device of magnetic rheology elastic body |
| CN109163050A (en) * | 2018-11-16 | 2019-01-08 | 集美大学 | A kind of high quiet low dynamic vibration isolator of magnetic rheology elastic body semi-active type |
| CN113757298A (en) * | 2021-09-09 | 2021-12-07 | 哈尔滨工业大学 | Piston type magnetorheological elastomer dynamic vibration absorber with shearing-compression mixing effect |
-
2016
- 2016-01-12 CN CN201620024432.0U patent/CN205479099U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106737202A (en) * | 2016-12-26 | 2017-05-31 | 株洲九方装备股份有限公司 | A kind of machining magnetic field shielding method and device containing permanent magnet workpiece |
| CN107191529A (en) * | 2017-03-27 | 2017-09-22 | 上海交通大学 | A kind of magnetic rheology elastic body thrust bearing pedestal dynamic vibration absorber and application method |
| CN107191529B (en) * | 2017-03-27 | 2019-03-22 | 上海交通大学 | A kind of magnetic rheology elastic body thrust bearing pedestal dynamic vibration absorber and application method |
| CN107524741A (en) * | 2017-07-28 | 2017-12-29 | 上海工程技术大学 | A kind of magnetic rheology elastic body suspension members for wheel hub motor |
| CN108871976A (en) * | 2018-04-10 | 2018-11-23 | 南京理工大学 | A kind of shearing performance test device of magnetic rheology elastic body |
| CN108317207A (en) * | 2018-04-13 | 2018-07-24 | 西安科技大学 | The MR elastomer vibration isolator of the multi-direction vibration control of vertical-horizontal can be achieved |
| CN109163050A (en) * | 2018-11-16 | 2019-01-08 | 集美大学 | A kind of high quiet low dynamic vibration isolator of magnetic rheology elastic body semi-active type |
| CN113757298A (en) * | 2021-09-09 | 2021-12-07 | 哈尔滨工业大学 | Piston type magnetorheological elastomer dynamic vibration absorber with shearing-compression mixing effect |
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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: 20160817 Termination date: 20170112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |