CN101089418A - Magnetic rheological isolator - Google Patents
Magnetic rheological isolator Download PDFInfo
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- CN101089418A CN101089418A CN 200710078473 CN200710078473A CN101089418A CN 101089418 A CN101089418 A CN 101089418A CN 200710078473 CN200710078473 CN 200710078473 CN 200710078473 A CN200710078473 A CN 200710078473A CN 101089418 A CN101089418 A CN 101089418A
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- oil cylinder
- piston rod
- magnetic rheological
- liquid chamber
- magnetic
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- Fluid-Damping Devices (AREA)
Abstract
The present invention relates to a kind of magnetorheological vibration isolator. It includes the following several portions: rubber main spring, oil cylinder, magnetizing coil, rubber bottom film, piston rod and magnetorheological liquid. Besides, said invention also provides the concrete structure of above-mentioned every portion and its concrete action, and also provides the working principle of said magnetorheological vibration isolator and its concrete operation method.
Description
Technical field
The present invention relates to a kind of magnetic rheological isolator that is used for engine vibration isolation system.The vibrating isolation system that also can be used for other machineries or structure.
Background technique
The vibration isolator of motor car engine use at present mostly is passive type rubber vibration isolation piece, and luxury car then adopts passive type hydraulic mount vibration isolator.Both are the passive vibration isolation device, and damping characteristic remains unchanged, and can not in time adjust required damping force according to the variation of engine luggine condition, influence the driving comfort of automobile.Passive type rubber vibration isolation piece mainly has vibration isolating effect preferably to off-resonance and high-frequency region, and is very poor to the vibration isolating effect in low-frequency resonance zone; Though the hydraulic mount vibration isolator can satisfy the requirement of the big dynamics rigidity in low-frequency resonance zone, obviously improve the vibration isolating effect of resonance zone, very poor to the vibration isolating effect in off-resonance zone.Then obvious deterioration can appear.In order to overcome the performance limitations of above-mentioned passive damping vibration isolator, various active hydraulic damping vibration isolators occurred and comprised the active hydraulic damping vibration isolator of regulating the damping hole size with solenoid valve or stepper motor.Active hydraulic damping vibration isolator energy consumption height, the control system complexity, reliability is poor.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists in the above-mentioned prior art, designs a kind of good manufacturability simple in structure, safety, reliable, and the magnetic rheological isolator with intelligent controllable characteristics.It is by changing the shear yield stress that magnetic field size between damp channel changes magnetic rheological liquid in the passage, realizes that damping force regulates rapidly, continuously, thereby reaches the purpose of isolated motor wideband vibration.
Magnetic rheological isolator involved in the present invention, comprise rubber spring 3, oil cylinder 5, field coil 10, rubber counterdie 8, a piston rod that can freely move up and down 1 is arranged in oil cylinder 5, piston rod 1 is separated into liquid chamber up and down with oil cylinder 5, be full of magnetic rheological liquid 14 in the liquid chamber up and down of oil cylinder 5, the bottom of piston rod 1 is wound with field coil 10, passes to different big or small electric currents in the field coil 10 and produces continuous variable magnetic field; The looping pit 11 of interruption is arranged at piston rod 1 bottom, magnetic rheological liquid 14 flows between upper and lower liquid chamber by being interrupted looping pit 11, rubber counterdie 8 is pressed together on oil cylinder 5 bottom end faces after being locked by locking nut 7, relies on the upper and lower liquid chamber Volume Changes of its elastic compensating in the course of the work.Change the magnetic field size of field coil 9, can change the shear yield stress of magnetic rheological liquid in the damp channel, reach the purpose of regulating damping force.
Magnetic rheological isolator involved in the present invention is a kind of novel intelligent controlled semi-active vibration-isolating device, by the variation of externally-applied magnetic field, can realize within the specific limits continuous, stepless adjustable of vibration isolator damping force.It is compared with traditional vibration isolator, fluid free impact and noise, and response is rapid, and damping is adjustable continuously, compares with active hydraulic damping vibration isolator, and energy consumption is low, and is simple in structure.Because these characteristics of magnetic rheological isolator can adapt to motor various vibration operating mode needs on vehicle body, realize effective wideband vibration isolation truly.
Description of drawings
Fig. 1 is the structural representation of magnetic rheological isolator
Among the figure, 1. piston rod, 2. reinforced block, 3. rubber spring, the 4.O RunddichtringO, 5. oil cylinder, 6. base, 7. locking nut, 8. rubber counterdie, 10. field coil 9,12.O RunddichtringO, magnetic rheological liquid 14.
Embodiment
The present invention is further described as follows below in conjunction with accompanying drawing:
Magnetic rheological isolator comprises piston rod 1, rubber spring 3, oil cylinder 5, rubber counterdie 8, field coil 10, magnetic flow liquid 14; Piston rod 1 top has connecting thread to link to each other with motor, and bottom field coil 10 twines thereon, and the magnetic field of generation constitutes closed magnetic circuit through piston rod 1, magnetic flow liquid, cylinder wall; Circumferentially uniform looping pit 11 is arranged at piston rod 1 bottom, but upper and lower chamber magnetic rheological liquid 14 is through looping pit free-flow; When the magnetic intensity of field coil 10 generations changes, the viscosity generation respective change of the magnetic rheological liquid 14 of the looping pit of flowing through, this has just realized the continuous variation of certain limit internal damping power.Piston rod 1 moves up and down in oil cylinder 5, piston rod 1 step 9, piston rod 1 upstroke is carried out spacing, the top 13 of locking nut 7,1 downward movement is carried out spacing to piston rod.O RunddichtringO 4 prevents piston rod 1 leak of liquid in the axial motion process.O RunddichtringO 12 can prevent that piston rod 1 from beat taking place in movement process, and the damage oil cylinder inner wall.Rubber counterdie 8 is pressed together on oil cylinder 5 bottom end faces after being locked by locking nut 7, relies on the upper and lower liquid chamber Volume Changes of its elastic compensating in the course of the work, also can prevent leak of liquid simultaneously.
In compression stroke, piston rod 1 is descending, cavity of resorption magnetic rheological liquid in the oil cylinder 5 enters epicoele by the circumferential uniform annular flow through hole B (damp channel) in piston rod 1 bottom, following cavity pressure is greater than upper cavity pressure, piston is moved downward be subjected to resistance, produce damping force, change magnetic intensity, the viscosity of magnetic rheological liquid in the may command annular flow through hole 11, thereby control damping force.In restoring stroke, piston rod 1 is up, and the magnetic rheological liquid in the oil cylinder 5 in the epicoele flows into cavity of resorption by the circumferentially uniform annular flow through hole 11 (damp channel) in piston rod 1 bottom, changes magnetic intensity, the viscosity of magnetic rheological liquid in the same may command annular flow through hole 11, the control damping force.The upper and lower under pressure motion of rubber counterdie 8, compensation since piston rod into and out of the fluid Volume Changes of being brought, avoid occurring the smooth or idle stroke of compensation.
Claims (4)
1. magnetic rheological isolator, comprise rubber spring (3), oil cylinder (5), field coil (10), rubber counterdie (8), it is characterized in that: a piston rod that can freely move up and down (1) is arranged in oil cylinder (5), piston rod (1) is separated into liquid chamber up and down with oil cylinder (5), be full of magnetic rheological liquid (14) in the liquid chamber up and down of oil cylinder (5), the bottom of piston rod (1) is wound with field coil (10), passes to different big or small electric currents in the field coil (10) and produces continuous variable magnetic field; Interruption looping pit (11) is arranged at piston rod (1) bottom, magnetic rheological liquid (14) flows between upper and lower liquid chamber by being interrupted looping pit (11), rubber counterdie (8) is pressed together on oil cylinder (5) bottom end face after being locked by locking nut (7), relies on the upper and lower liquid chamber Volume Changes of its elastic compensating in the course of the work.
2. magnetic rheological isolator according to claim 1 is characterized in that the top (13) of locking nut (7), and downward movement is carried out spacing to piston (1).
3. magnetic rheological isolator according to claim 1 is characterized in that piston rod (1) step (9), carries out spacing to piston (1) upstroke.
4. magnetic rheological isolator according to claim 1 is characterized in that the O type circle (12) that the upper liquid chamber Sealing has O type circle (4) and avoids oil cylinder (5) inwall to damage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710078473 CN101089418A (en) | 2007-05-14 | 2007-05-14 | Magnetic rheological isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710078473 CN101089418A (en) | 2007-05-14 | 2007-05-14 | Magnetic rheological isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101089418A true CN101089418A (en) | 2007-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710078473 Pending CN101089418A (en) | 2007-05-14 | 2007-05-14 | Magnetic rheological isolator |
Country Status (1)
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| CN (1) | CN101089418A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594159A (en) * | 2016-12-16 | 2017-04-26 | 合肥工业大学 | Magnetorheological composite suspension capable of achieving three-direction vibration isolation |
| CN108869611A (en) * | 2018-07-22 | 2018-11-23 | 重庆交通大学 | Passenger vehicle engine multi-mode magnetic rheological isolator |
| CN110043598A (en) * | 2019-04-30 | 2019-07-23 | 中北大学 | It is a kind of based on magnetorheological clay and the compound active vibration isolation device of metal-rubber |
| CN110094449A (en) * | 2019-04-30 | 2019-08-06 | 中北大学 | A kind of low-power consumption MR mount based under shear mode |
| CN110107639A (en) * | 2019-05-05 | 2019-08-09 | 中国矿业大学 | Magnetorheological hydraulic engine mount based on mixed mode |
| CN110242697A (en) * | 2019-06-25 | 2019-09-17 | 奇瑞汽车股份有限公司 | A kind of magnetorheological TOPMOUNT structure of adjustable automotive suspension of rigidity |
| CN113803399A (en) * | 2021-09-10 | 2021-12-17 | 西安工业大学 | High-load magnetorheological fluid-elastic three-way vibration damper |
| CN114087309A (en) * | 2021-11-26 | 2022-02-25 | 湖南福能液压科技有限公司 | Self-adaptive damping rubber spring for rail heavy-duty truck |
-
2007
- 2007-05-14 CN CN 200710078473 patent/CN101089418A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594159A (en) * | 2016-12-16 | 2017-04-26 | 合肥工业大学 | Magnetorheological composite suspension capable of achieving three-direction vibration isolation |
| CN106594159B (en) * | 2016-12-16 | 2019-05-31 | 合肥工业大学 | A kind of magneto-rheological combined suspension for realizing three-dimensional vibration isolation |
| CN108869611A (en) * | 2018-07-22 | 2018-11-23 | 重庆交通大学 | Passenger vehicle engine multi-mode magnetic rheological isolator |
| CN110094449B (en) * | 2019-04-30 | 2021-05-25 | 中北大学 | Low-power-consumption magnetorheological suspension based on shearing mode |
| CN110094449A (en) * | 2019-04-30 | 2019-08-06 | 中北大学 | A kind of low-power consumption MR mount based under shear mode |
| CN110043598B (en) * | 2019-04-30 | 2020-12-11 | 中北大学 | Active vibration isolator based on compounding of magnetorheological cement and metal rubber |
| CN110043598A (en) * | 2019-04-30 | 2019-07-23 | 中北大学 | It is a kind of based on magnetorheological clay and the compound active vibration isolation device of metal-rubber |
| CN110107639A (en) * | 2019-05-05 | 2019-08-09 | 中国矿业大学 | Magnetorheological hydraulic engine mount based on mixed mode |
| CN110107639B (en) * | 2019-05-05 | 2020-06-19 | 中国矿业大学 | Engine magnetorheological hydraulic mount based on mixed mode |
| CN110242697A (en) * | 2019-06-25 | 2019-09-17 | 奇瑞汽车股份有限公司 | A kind of magnetorheological TOPMOUNT structure of adjustable automotive suspension of rigidity |
| CN113803399A (en) * | 2021-09-10 | 2021-12-17 | 西安工业大学 | High-load magnetorheological fluid-elastic three-way vibration damper |
| CN113803399B (en) * | 2021-09-10 | 2022-11-01 | 西安工业大学 | High-load magnetorheological fluid-elastic three-way vibration damper |
| CN114087309A (en) * | 2021-11-26 | 2022-02-25 | 湖南福能液压科技有限公司 | Self-adaptive damping rubber spring for rail heavy-duty truck |
| CN114087309B (en) * | 2021-11-26 | 2022-07-08 | 湖南福能液压科技有限公司 | Self-adaptive damping rubber spring for rail heavy-duty truck |
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