CN2934746Y - Multiple-mode magnetic rheologic liquid damper - Google Patents
Multiple-mode magnetic rheologic liquid damper Download PDFInfo
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- CN2934746Y CN2934746Y CN 200620097119 CN200620097119U CN2934746Y CN 2934746 Y CN2934746 Y CN 2934746Y CN 200620097119 CN200620097119 CN 200620097119 CN 200620097119 U CN200620097119 U CN 200620097119U CN 2934746 Y CN2934746 Y CN 2934746Y
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Abstract
The utility model relates to a multi-mould MR damper, comprising a cylinder body, piston components and an accumulator (11). The piston components include a hollow piston rod (18), a piston guider (21), a magnetic core (23) and a piston (25). The cylinder body comprises a cylinder (5), an upper cover (19) and a lower cover (26); the working space (14) is provided with a hole and linked to the accumulator (11); the accumulator (11) is provided with a sliding piston (13) which divides the cavity into a left part and a right part, and the left cavity is filled with high-pressure nitrogen (12); the magnetic core (23) is wound with a plurality of excitation coils (10), and the neighboring coils are wound in reverse directions, and the generated magnetic field can realize shearing flow of the magnetic rheological liquid in the damping channel; excitation coils (24) are wound in the piston and the lower cover, and the generated magnetic field can realize compressed flow of the magnetic rheological liquid. During the operation of the MR damper, the magnetic rheological liquid is compressed and sheared and flows in the damper, and is magnetized by the magnetic field. As a result, the damping force and the utilization rate of the magnetic rheological liquid are largely increased.
Description
Technical field:
The utility model relates to a kind of damper, particularly a kind of shearing, the MR damper that flows, pushes the mixed mode that combines.
Background technique:
Characteristics such as at present, magnetic rheological liquid semi-active damper is owing to have that damping force is big, regulation range is wide, and the fast and operating temperature range of speed of response is big and paid close attention to widely and study.
In the existing magnetic rheological liquid damper design, its project organization is had nothing in common with each other, as patent CN2708034Y (vehicle suspension vibration damper), patent CN25511806Y (auto magnetorheological liquid vibration damper) etc., its mode of operation all is to shear basically, or flows, or extruding, or flow and shearing combines.All there is a common problem in such damper: the damper two ends are left most of magnetic flow liquid and are in off working state, the magnetic flow liquid of real work accounts for about 10% of total amount, the result is that the magnetic flow liquid consumption is big, the damping-force adjustable scope is little, the magnetic rheological liquid damper of big damping force has to design not only long but also big cylindrical shell, this not only increases cost, when use occasion has requirement to the space, then limited use, as will the changes persuing amount in the use of occasions such as boats and ships, aircraft light, usage space is little.
Summary of the invention:
The purpose of this utility model provides a kind of multi-mode magnetic rheological liquid damper, and that this damper has simultaneously is mobile, push and shear three kinds of working methods.The magnetic flow liquid of this magnetic rheological liquid damper is all in running order, and damping force is big, and the damper volume is little.
This novel practical is (referring to the accompanying drawing) realized like this:
A kind of multi-mode magnetic rheological liquid damper, this damper comprises clutch release slave cylinder, piston assembly and accumulator 11, piston assembly comprises box type piston bar 18, the coaxial piston guide device 21 that is contained on the box type piston bar 18, magnetic core 23 and piston 25, and piston 25 is fixedly connected with box type piston bar 18; Clutch release slave cylinder comprises cylinder barrel 5, upper cover 19 and following capping 26; Be full of magnetic flow liquid in the cylinder barrel 5, magnetic core 23 is several I-shaped disk-like structures, groove uniform winding at magnetic core 23 I-shaped disk-like structures field coil 10, direction of winding between the adjacent windings is opposite, field coil 10 has insulation spacer 22 near piston 25 between magnetic core and the piston guide device; Piston guide device outer rim and inner wall of cylinder tight engagement, piston guide device 21 inside have several openings 7, and piston guide device 21 is fixing by lock washer 20; Be wound with corresponding field coil 24 in the piston 25 and in the following capping 26, following active chamber 14 porose with outside accumulators 11 link to each other, sliding piston 13 is equipped with in accumulator 11 inside, and sliding piston 13 is divided into left cavity and right cavity two-part with the accumulator cavity, is filled with high pressure nitrogen 12 in the left cavity; Cylinder barrel 5 and the material that following capping 26 is the permeability height, coercivity is low are made (as making with low-carbon steel material); Piston 25 and the material that magnetic core 23 is the permeability height, coercivity is low are made (as making with the permally material); , box type piston bar outer end is respectively arranged with main body that is connected controlled device or the device of accepting carrier with lower end cap.
The lighting outlet 2 of the field coil of this multi-mode magnetic rheological liquid damper is drawn by the box type piston bar, and field coil has the coil protect cover (sealing of promptly insulating) 9 of non-magnetic conduction outward, makes the magnetic line of force pass through the damp channel of being made up of cylinder barrel and magnetic core.The connecting rod of piston is fixed with the piston guide device, and piston guide device cylindrical is equipped with support ring 8, and is even with the radial dimension of guaranteeing damp channel.The equally distributed magnetic flow liquid opening 7 of piston guide device indoor design.At opening feeder connection place is fillet, to reduce the turbulent phenomenon of magnetic flow liquid in passage.
The coil quantity of the field coil 10 that twines on this multi-mode magnetic rheological liquid damper magnetic core 23 designs as required.
This multi-mode magnetic rheological liquid damper, in the exterior design of clutch release slave cylinder accumulator, to shorten the length of damper, accumulator inside is full of high pressure nitrogen, and sliding piston is housed in the chamber, separates by movable piston and magnetic flow liquid.Its effect is in the damper compression process, and load quality is played buffer function and damper is played the volume compensation effect, helps the secondary floating of magnetic flow liquid.
Contents such as concrete controlling device, sensing system and the electric control device of damping force can obtain in the correlation technique data of the controlled semi-active vehicle suspension system of existing damping force, these contents and this damper are used, so do not provide relevant accompanying drawing and detailed elaboration thereof.The content of setting forth according to the utility model can realize the utility model at an easy rate on the damper structure basis of existing this class suspension system simultaneously.
The feature of this damper is as follows:
(1) do not adding under the electric current effect, damper also has certain damping force, even the control system fault occurs, damper has damping effect too.
(2) internal piston and the following capping inner coiling field coil corresponding with it.After adding electric current, between piston and following capping, form uniform magnetic field, make that the interior magnetic flow liquid of active chamber is that extruding type flows down.
(3) several field coils of design between piston guide device and piston, adjacent between the coiling direction of coil opposite.Field coil is wrapped on the plate-like magnetic core, and magnetic core is enclosed within box type piston bar outside, and the direction of insulation spacer 22 with the control magnetic loop arranged between the piston guide device.Because the design of magnetic shielding structure more can be given full play to the effect of magnetic field to the magnetic flow liquid in the damp channel, the energy consumption of damper is reduced.When adding magnetic field, magnetic loop is formed in magnetic core, cylinder barrel and space wherein.The winding direction of adjacent windings is opposite, and the magnetic field of generation realizes that the shearing of magnetic flow liquid flows in the damp channel, can reduce the self inductance of coil, shortens the response time in magnetic field, adds the intensity of high magnetic fields.
(4) cylinder barrel of damper and lower end cap are as the part of magnetic field generator magnetic circuit, employing permeability height, the low-carbon steel material that coercivity is low, the piston only of damper and magnetic core are as the internal magnetic circuit of magnetic field generator, employing permeability height, the permally material that coercivity is low improve the remanent magnetism of damper and retarding characteristic.
(5) damper has adopted external accumulator, to shorten damper length, effectively utilizes the small space of boats and ships inside.
(6) for the magnetic rheological liquid damper of other types, the utility model can make the big portion of magnetic flow liquid of piston guide device bottom be in the effect of effective magnetic field, improve the effective volume of magnetic flow liquid greatly, realize flowing, shear, pushing three kinds of working methods simultaneously, when reducing by zero magnetic field damping force, improve maximum damping force.
Description of drawings:
Fig. 1 is a kind of example structure schematic representation of the present utility model.
Fig. 2 is the local enlarged diagram of Fig. 1.
Fig. 3 is at the inner work magnetic circuit schematic representation that forms of damper when giving Fig. 1 embodiment's field coil two ends loading current.
The part name of sequence number representative among the figure:
1 suspension ring connection set, 2 lead-in wires, 3 dust-proof cover, 4 seal rings, 5 cylinder barrels
Active chamber 7 pod apertures 8 support rings 9 insulation sealings 10 field coils on 6
14 times active chamber 15 seal rings of 11 accumulators, 12 high pressure nitrogens, 13 sliding pistons
16 suspension ring connection sets, 17 insulation sealings, 18 box type piston bars, 19 upper covers, 20 lock washers
21 piston guide devices, 22 insulation spacers, 23 magnetic cores, 24 field coils, 25 pistons
26 times capping 27 magnetic lines of force.
Embodiment:
Further describe this novel practical below with reference to Fig. 1, Fig. 2, Fig. 3:
Fig. 1, Fig. 2, be respectively the overall structure sectional view and the partial sectional view of this novel practical, the related magnetorheological damping control gear of this novel practical is a monotubular formula damper, mainly comprises cylinder barrel 5 and is contained in parts such as the interior magnetic flow liquid of cylinder body, upper cover 19, capping 26 down, box type piston bar 18, piston 25, magnetic core 23, piston guide device 21, field coil 10,24.Damper cylinder body mainly by the cylinder barrel 5 of high permeability, the upper end cap 19 of utmost point low permeability and the lower end cap of high magnetic permeability 26 constitute.Field coil lead-in wire 2 links to each other with field coil 10,24 by box type piston bar 18, piston 25 or magnetic core 23, and epoxy sealing is adopted in the joint.Piston 25 links to each other with box type piston bar 18, and piston 25 inside are tied with field coil, and integral body is made by the permally with high magnetic permeability.Near piston head is field coil 10, and magnetic core 23 is made I-shaped disk-like structure, and the electromagnetic coil uniform winding is at the groove of magnetic core 23.Piston guide device 21 is fixed on the box type piston bar 18, and is coaxial with piston 25, box type piston bar 18, accompanies insulation spacer 22 between piston guide device 21 and the magnetic core 23.Piston guide device outer rim and inner wall of cylinder tight engagement, and be added with support ring 8 at groove; Piston guide device inside has several openings 7, and when guaranteeing pistons work, magnetic flow liquid can flow between last active chamber 6 and following active chamber 14 smoothly.The other end of piston guide device is fixing by lock washer 20, constitutes piston assembly like this.Piston is divided into active chamber 6 and 14 two parts of following active chamber to cylinder barrel 5, and two active chambers all are loaded with magnetic flow liquid up and down, and the epicoele of clutch release slave cylinder is isolated from the outside by obturator; Porose with the outside accumulator 11 of following active chamber links to each other.Sliding piston 13 is equipped with in accumulator 11 inside, and sliding piston 13 is divided into left and right sides two-part with cavity space, is filled with high pressure nitrogen in the left cavity space.In damper when work,, magnetic flow liquid is at last active chamber 6, flow back and forth between active chamber 14 and the accumulator 11 down, when piston 25 is done compressional movement, and magnetic flow liquid inflow accumulator, sliding piston 13 compressed nitrogen 12 that moves up; When piston 25 was made extensional motion, magnetic flow liquid flowed out accumulator, and sliding piston 13 moves down.
Fig. 2 is a magnetic field generator structure sectional view of the present utility model, utilize cylinder barrel 5 and following capping 26 a part as the magnetic field generator magnetic circuit, employing permeability height, the low-carbon steel material that coercivity is low, the piston 25 of damper and magnetic core 23 be as the internal magnetic circuit of magnetic field generator, adopts permeability height, permally material that coercivity is low.The coil protect that has then designed non-magnetic conduction outside field coil 10 overlaps the sealing 9 of promptly insulating, the damp channel of magnetic field magnetic line by being made up of cylinder barrel 5 and magnetic core 23 that field coil 10 is produced.Piston 25 is inner corresponding with the Inside coil of following capping 26, and its magnetic field magnetic line direction is parallel to cylinder barrel 5, acts on almost whole active chamber 14 down.Design the piston guide device 21 of non-magnetic conduction in the outside of magnetic core, on piston guide device 21, designed twice support ring 8, even with the radial dimension of guaranteeing damp channel, bring into play magnetic field more fully to the magnetic flow liquid effect, improve the flexibility of piston assembly motion.At equally distributed 8 the magnetic flow liquid openings 7 of piston guide device 21 indoor designs.When piston assembly moves upward, the pressure of damper epicoele increases, and magnetic flow liquid is through the opening 7 of guider 21 inside, is fillet at the feeder connection place with plunger designs, to reduce the turbulent phenomenon of magnetic flow liquid in passage, help reducing the damping force under zero magnetic field condition.In order to ensure the sealing of damper, all adopt seal ring 4,15 in the joint of piston, box type piston bar, cylinder body and cylinder barrel.
When Fig. 3 is loading current, damper internal magnetic field schematic representation.With reference to Fig. 3, the circuit turn-on of working as the excitation signal source in the present embodiment, during the field coil loading current, the magnetic field that it produces will produce the closed-loop path as figure, the magnetic field that coil 10 forms forms closed magnetic loop between the space between magnetic core 23, box type piston bar 18 and the cylinder barrel 5, cylinder barrel 5, the magnetic line of force in the space makes that perpendicular to cylinder barrel this part magnetic flow liquid is shearing flowing; The space of the magnetic field that piston coil and lower sealing cover coil form between piston 25, following active chamber 14, lower sealing cover 26, cylinder barrel 5 and cylinder barrel 5 and piston only 25 forms closed magnetic loop, this magnetic circuit mainly acts on down the liquid of active chamber 14, magnetic circuit in the following active chamber 14 is parallel to cylinder barrel 5, and the type of flow of liquid is an extruding type.
Claims (2)
1. multi-mode magnetic rheological liquid damper, it is characterized in that, this damper comprises clutch release slave cylinder, piston assembly and accumulator (11), piston assembly comprises box type piston bar (18), coaxial piston guide device (21), magnetic core (23) and the piston (25) that is contained on the box type piston bar (18), and piston (25) is fixedly connected with box type piston bar (18); Clutch release slave cylinder comprises cylinder barrel (5), upper cover (19) and following capping (26); Cylinder barrel is full of magnetic flow liquid in (5), magnetic core (23) is several I-shaped disk-like structures, groove uniform winding at the I-shaped disk-like structure of magnetic core (23) field coil (10), direction of winding between the adjacent windings is opposite, field coil (10) has insulation spacer (22) near piston (25) between magnetic core (23) and the piston guide device (21); Piston guide device outer rim and inner wall of cylinder tight engagement, piston guide device (21) inside has several openings (7), and piston guide device (21) is fixing by lock washer (20); Be wound with corresponding field coil (24) in the piston (25) and in the following capping (26); Porose with the outside accumulator (11) of following active chamber (14) links to each other, and sliding piston (13) is equipped with in accumulator (11) inside, and sliding piston (13) is divided into left cavity and right cavity two-part with the accumulator cavity, is filled with high pressure nitrogen (12) in the left cavity; Cylinder barrel (5) and the material that following capping (26) is the permeability height, coercivity is low are made, and piston (25) and the material that magnetic core (23) is the permeability height, coercivity is low are made; Box type piston bar outer end is respectively arranged with main body that is connected controlled device or the device of accepting carrier with lower end cap.
2, a kind of multi-mode magnetic rheological liquid damper according to claim 1, it is characterized in that, cylinder barrel (5) and following capping (26) employing permeability height, the low-carbon steel material that coercivity is low are made, and piston (25) and magnetic core (23) employing permeability height, the permally material that coercivity is low are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620097119 CN2934746Y (en) | 2006-06-08 | 2006-06-08 | Multiple-mode magnetic rheologic liquid damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620097119 CN2934746Y (en) | 2006-06-08 | 2006-06-08 | Multiple-mode magnetic rheologic liquid damper |
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| CN2934746Y true CN2934746Y (en) | 2007-08-15 |
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| CN 200620097119 Expired - Fee Related CN2934746Y (en) | 2006-06-08 | 2006-06-08 | Multiple-mode magnetic rheologic liquid damper |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141108A (en) * | 2011-03-11 | 2011-08-03 | 王靖 | External electromagnet retractable type magnetorheological damper |
| CN103195858A (en) * | 2013-04-15 | 2013-07-10 | 沈阳航空航天大学 | Magnetorheological buffering unit structure based on impact load and control method thereof |
| CN104165204A (en) * | 2014-07-25 | 2014-11-26 | 华侨大学 | Energy feedback type damper combining piezoelectric ceramic and magnetorheological fluid |
| CN104179118A (en) * | 2014-08-20 | 2014-12-03 | 重庆邮电大学 | Design method and device of anti-impact vibration isolation type magnetorheological pier bearing-damper system |
| CN105546020A (en) * | 2016-01-07 | 2016-05-04 | 南京航空航天大学 | Magnetorheological damper with piezoelectric energy recovery function |
| CN105653042A (en) * | 2016-02-29 | 2016-06-08 | 东南大学 | Pen type force-touch reappearing device for interactive application of multimedia mobile terminal |
| CN106838106A (en) * | 2017-03-21 | 2017-06-13 | 哈尔滨工程大学 | A kind of novel magnetorheological fluid damper |
| CN107061597A (en) * | 2017-03-21 | 2017-08-18 | 哈尔滨工程大学 | A kind of magnetorheological fluid damp vibration isolator |
| CN108239918A (en) * | 2018-01-15 | 2018-07-03 | 魏志峰 | A kind of horizontal shock-absorbing device for bridge |
| CN109178092A (en) * | 2018-09-03 | 2019-01-11 | 天津英创汇智汽车技术有限公司 | Steering load simulator and system |
| CN110332275A (en) * | 2019-07-30 | 2019-10-15 | 福州大学 | A kind of full tunnel shear extrusion mixed mode MR damper and its control method |
| CN112963489A (en) * | 2021-04-07 | 2021-06-15 | 重庆大学 | Multi-channel multi-degree-of-freedom magnetorheological damper based on porous composite material |
| CN114791029A (en) * | 2021-10-19 | 2022-07-26 | 广西科技大学 | Damping force adjustable valve type magnetorheological damper |
| CN115289167A (en) * | 2022-01-04 | 2022-11-04 | 兰州理工大学 | Pore-combined magnetorheological fluid damper for four-bar lower artificial limb |
| CN115681389A (en) * | 2022-09-22 | 2023-02-03 | 重庆大学 | Volume compensation structure of magnetorheological damper |
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2006
- 2006-06-08 CN CN 200620097119 patent/CN2934746Y/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141108B (en) * | 2011-03-11 | 2012-09-05 | 王靖 | External electromagnet retractable type magnetorheological damper |
| CN102141108A (en) * | 2011-03-11 | 2011-08-03 | 王靖 | External electromagnet retractable type magnetorheological damper |
| CN103195858A (en) * | 2013-04-15 | 2013-07-10 | 沈阳航空航天大学 | Magnetorheological buffering unit structure based on impact load and control method thereof |
| CN104165204A (en) * | 2014-07-25 | 2014-11-26 | 华侨大学 | Energy feedback type damper combining piezoelectric ceramic and magnetorheological fluid |
| CN104179118A (en) * | 2014-08-20 | 2014-12-03 | 重庆邮电大学 | Design method and device of anti-impact vibration isolation type magnetorheological pier bearing-damper system |
| CN104179118B (en) * | 2014-08-20 | 2016-01-20 | 重庆邮电大学 | The method for designing of the magnetorheological bearing-damper of anti-impact vibration isolation type bridge pier and device |
| CN105546020A (en) * | 2016-01-07 | 2016-05-04 | 南京航空航天大学 | Magnetorheological damper with piezoelectric energy recovery function |
| CN105653042A (en) * | 2016-02-29 | 2016-06-08 | 东南大学 | Pen type force-touch reappearing device for interactive application of multimedia mobile terminal |
| CN105653042B (en) * | 2016-02-29 | 2018-07-20 | 东南大学 | Pen type power-tactile representation device towards multimedia mobile terminal interactive application |
| CN106838106B (en) * | 2017-03-21 | 2019-01-15 | 哈尔滨工程大学 | A kind of novel magnetorheological fluid damper |
| CN106838106A (en) * | 2017-03-21 | 2017-06-13 | 哈尔滨工程大学 | A kind of novel magnetorheological fluid damper |
| CN107061597A (en) * | 2017-03-21 | 2017-08-18 | 哈尔滨工程大学 | A kind of magnetorheological fluid damp vibration isolator |
| CN108239918A (en) * | 2018-01-15 | 2018-07-03 | 魏志峰 | A kind of horizontal shock-absorbing device for bridge |
| CN109178092A (en) * | 2018-09-03 | 2019-01-11 | 天津英创汇智汽车技术有限公司 | Steering load simulator and system |
| CN110332275A (en) * | 2019-07-30 | 2019-10-15 | 福州大学 | A kind of full tunnel shear extrusion mixed mode MR damper and its control method |
| CN110332275B (en) * | 2019-07-30 | 2021-06-22 | 福州大学 | Full-channel shear extrusion mixed mode magnetorheological damper and control method thereof |
| CN112963489A (en) * | 2021-04-07 | 2021-06-15 | 重庆大学 | Multi-channel multi-degree-of-freedom magnetorheological damper based on porous composite material |
| CN114791029A (en) * | 2021-10-19 | 2022-07-26 | 广西科技大学 | Damping force adjustable valve type magnetorheological damper |
| CN114791029B (en) * | 2021-10-19 | 2023-04-25 | 广西科技大学 | Valve type magnetorheological damper with adjustable damping force |
| CN115289167A (en) * | 2022-01-04 | 2022-11-04 | 兰州理工大学 | Pore-combined magnetorheological fluid damper for four-bar lower artificial limb |
| CN115681389A (en) * | 2022-09-22 | 2023-02-03 | 重庆大学 | Volume compensation structure of magnetorheological damper |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 |