CN202833832U - Magneto-rheological fluid shock absorber capable of preventing magneto-rheological fluid sediment - Google Patents
Magneto-rheological fluid shock absorber capable of preventing magneto-rheological fluid sediment Download PDFInfo
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- CN202833832U CN202833832U CN 201220547285 CN201220547285U CN202833832U CN 202833832 U CN202833832 U CN 202833832U CN 201220547285 CN201220547285 CN 201220547285 CN 201220547285 U CN201220547285 U CN 201220547285U CN 202833832 U CN202833832 U CN 202833832U
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- shock absorber
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- rheological fluid
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- floating piston
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Abstract
The utility model relates to a magneto-rheological fluid shock absorber capable of preventing magneto-rheological fluid sediment and the magneto-rheological fluid shock absorber is used for vehicle shock absorbing, in order to solve the phenomenon that sediment appears in an existing magneto-rheological fluid shock absorber. The magneto-rheological fluid shock absorber comprises a working cylinder and a piston, wherein a floating piston is arranged inside a cavity between the lower ends of the piston and the working cylinder. A motor with a power source is installed on the lower surface of the floating piston, and a groove is arranged on the upper surface of the floating piston. A spiral blade which is connected with a rotary shaft of the motor is arranged inside the groove. The magneto-rheological fluid shock absorber is capable of solving the phenomenon of the magneto-rheological fluid sediment, guaranteeing the normal use of the shock absorber and improving the service life of the shock absorber.
Description
Technical field
The utility model relates to a kind of vibration damper for vehicle, relates to specifically a kind of magnetorheological fluid shock absorber that prevents the magnetic flow liquid precipitation.
Background technique
In the Vehicle Driving Cycle process, produce vibrations because elastic element is hit in the suspension system, for improving the Vehicle Driving Cycle smoothness, be installed in parallel vibration damper with elastic element in the suspension.At present, the vibration damper that adopts on the vehicle suspension mostly is passive type, realize cushioning effect such as traditional hydraulic damper by the damping that fluid flows through one-way valve, can not change the vibration damper damping constant according to traffic information, driver and passenger comfort level when driving can not get maximum satisfied.The active suspension system of employing damping force adjustable and spring rate can be according to the size of road conditions and Vehicle Driving Cycle condition change damping force and spring rate, to satisfy the requirement of riding comfort and travelling and driving safety, but because the complex structure of active suspension system, cost is expensive, makes it only be at home test room's exploratory stage.By the semi-active suspension system that the active shock of passive spring and damping force adjustable forms, inexpensive with its price, manufacturing process is relatively simple, damping effect is better, becomes just gradually the developing direction of Modern Automotive Suspension System system.
Application number is 201020283585.X, notice of authorization number discloses a kind of Novel magnetorheological fluid shock absorber for CN 201723641 U, mainly comprise suspension ring assembly, clutch release slave cylinder, end cap, coil, seal ring and guide line, the suspension ring assembly links to each other with automobile axle, be provided with magnetic flow liquid in the cavity between piston rod and the clutch release slave cylinder, end cap is connected by welding manner with clutch release slave cylinder, seal ring is installed in inboard and the outside of end cap radial direction, guide line links to each other with coil, and draws by the endoporus of piston and piston rod; In the space between piston rod and the clutch release slave cylinder floating piston is set, floating piston is divided into up and down two chambeies with the cavity between piston rod and the clutch release slave cylinder, is filled with nitrogen in the cavity of resorption, is filled with magnetic flow liquid in the epicoele, and one-way valve is welded on the clutch release slave cylinder.
Because magnetic flow liquid comprises (for example) Paramagnetic compounds, superparamagnetism compound or ferromagnetic compound.The object lesson of magnetic-responsive particulate that can be practical comprises the particle that is made of following material, and these materials are: iron, ferro-alloy, iron oxide, desalination iron, cementite, carboxyl iron, chromium dioxide, low carbon steel, silicon steel, nickel, cobalt and their mixture.
Although in magnetic flow liquid, added the antisolvent precipitation thing, but in the actual motion process, the magnetic-responsive particulate deposited phenomenon still exists, and has not only affected the normal use of magnetorheological fluid shock absorber, in case deposited phenomenon increases the weight of, can cause magnetorheological fluid shock absorber normally not use.
The model utility content
The utility model is to overcome the problem that existing magnetorheological fluid shock absorber magnetic flow liquid produces precipitation, and a kind of magnetorheological fluid shock absorber that prevents magnetic flow liquid precipitation is provided, can eliminate the deposited phenomenon of magnetic flow liquid, ensure the normal use of vibration damper, increase the working life of vibration damper.
For addressing the above problem, the technological scheme that the utility model adopts is as follows:
A kind of magnetorheological fluid shock absorber that prevents the magnetic flow liquid precipitation comprises clutch release slave cylinder and piston, it is characterized in that: be provided with floating piston in the cavity between the lower end of described piston and clutch release slave cylinder; Described floating piston lower surface is equipped with the motor with power supply, and described floating piston upper surface is provided with groove; Be provided with the helical blade that is connected with motor rotation axis in the described groove.
Further, described motor is connected with floating piston by screw.
Further, described floating piston is made by soft magnetic material.
Further, described soft magnetic material is pure iron or low carbon steel.
Further, described floating piston is provided with seal ring.
Further, described helical blade is made by rubber.
Compared with prior art, the utlity model has following beneficial effect:
One, is provided with floating piston in the cavity of the utility model between the lower end of piston and clutch release slave cylinder, motor is installed on the floating piston, helical blade is installed on the motor rotation axis; When precipitation appears in magnetic flow liquid, the rotation of driven by motor helical blade, the deposited phenomenon of elimination magnetic flow liquid, the working life of increase magnetorheological fluid shock absorber.
Two, the floating piston of the utility model use is made by soft magnetic material, has permeability high, easy magnetization, the easily characteristics of demagnetization.
Three, the practical floating piston of the utility model is made by pure iron or low carbon steel, has cheaply, and the advantage of good processability is so that the utility model low cost of manufacture has the market competitiveness.
Four, the helical blade that adopts of the utility model is made by rubber, can not affect work of the present utility model magnetic field.
Description of drawings
Fig. 1 is the utility model one embodiment's structural representation;
Mark among the figure: 1 is the suspension ring assembly, and 2 is floating piston, and 3 is piston, 4 is piston rod, and 5 is guide holder, and 6,7,8 is seal ring, 9. needle-like outlet valve, 10 is guide line, 11 is valve formula liquid filling hole, 12 is end cap, and 13 is passage, and 14 is clutch release slave cylinder, 15 is coil, 16 is epoxy plastics, and 17 is motor, and 18 is the elasticity thing.
Embodiment
Below in conjunction with the drawings and the specific embodiments the utility model is described further.
With reference to Fig. 1, the utility model comprises suspension ring assembly 1, piston 3, piston rod 4, guide holder 5, seal ring 6-8, needle-like outlet valve 9, guide line 10, valve formula liquid filling hole, end cap 12, passage 13, clutch release slave cylinder 14, coil 15, epoxy plastics 16.Mode by welding between the utility model end cap and the clutch release slave cylinder is connected to an integral body, and end cap 12 is provided with needle-like outlet valve 9 and valve formula liquid filling hole 11.End cap 12 and guide holder 5 are equipped with passage 13, are convenient to the circulation of magnetic flow liquid.By needle-like outlet valve 9 and valve formula liquid filling hole 11, can carry out easily the injection of magnetic flow liquid.
Piston rod 4 centers are provided with center hole, are convenient to drawing of guide line 10, pass through piston rod 4 center holes for preventing magnetic flow liquid, are provided with sealing epoxy plastics 16; For ease of guiding, be provided with guide holder 5, piston 3 is provided with is convenient to the aperture that magnetic flow liquid flows.The noise that produces for reducing piston 3 to-and-fro motion arranges floating piston 2 in the cavity between piston 3 and the clutch release slave cylinder 14, and floating piston 2 is provided with seal ring, avoids magnetic flow liquid to immerse; Preferably floating piston 2 is made by pure iron or low carbon steel, is convenient to processing and manufacturing.
Further, described floating piston 2 lower surfaces are equipped with motor 17 with power supply by screw, the floating piston upper surface is provided with groove, be provided with the helical blade that is connected with motor 17 rotatingshafts in the groove, helical blade is made by rubber, avoids affecting the magnetic field that the magnetorheological fluid shock absorber coil produces.
Claims (6)
1. ⒈ magnetorheological fluid shock absorber that prevents the magnetic flow liquid precipitation comprises clutch release slave cylinder and piston, it is characterized in that: be provided with floating piston in the cavity between the lower end of described piston and clutch release slave cylinder; Described floating piston lower surface is equipped with the motor with power supply, and described floating piston upper surface is provided with groove; Be provided with the helical blade that is connected with motor rotation axis in the described groove.
2. the magnetorheological fluid shock absorber that prevents magnetic flow liquid precipitation according to claim 1, it is characterized in that: described motor is connected with floating piston by screw.
3. the magnetorheological fluid shock absorber that prevents magnetic flow liquid precipitation according to claim 1, it is characterized in that: described floating piston is made by soft magnetic material.
4. the magnetorheological fluid shock absorber that prevents magnetic flow liquid precipitation according to claim 3, it is characterized in that: described soft magnetic material is pure iron or low carbon steel.
5. the magnetorheological fluid shock absorber that prevents magnetic flow liquid precipitation according to claim 3, it is characterized in that: described floating piston is provided with seal ring.
6. the magnetorheological fluid shock absorber that prevents magnetic flow liquid precipitation according to claim 1, it is characterized in that: described helical blade is made by rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220547285 CN202833832U (en) | 2012-10-24 | 2012-10-24 | Magneto-rheological fluid shock absorber capable of preventing magneto-rheological fluid sediment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220547285 CN202833832U (en) | 2012-10-24 | 2012-10-24 | Magneto-rheological fluid shock absorber capable of preventing magneto-rheological fluid sediment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833832U true CN202833832U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220547285 Expired - Fee Related CN202833832U (en) | 2012-10-24 | 2012-10-24 | Magneto-rheological fluid shock absorber capable of preventing magneto-rheological fluid sediment |
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| CN (1) | CN202833832U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033526A (en) * | 2014-06-27 | 2014-09-10 | 谭晓婧 | Magnetorheological damper with float ring and double outlet rods |
| CN106594158A (en) * | 2016-11-29 | 2017-04-26 | 上海工程技术大学 | Anti-settlement magneto-rheological fluid damper with turbine |
| CN106763444A (en) * | 2016-12-27 | 2017-05-31 | 东南大学 | A kind of anti-precipitation MR damper |
| CN107725663A (en) * | 2017-10-24 | 2018-02-23 | 东北大学 | A kind of antisolvent precipitation magnetic rheological liquid damper |
| CN108105320A (en) * | 2017-12-14 | 2018-06-01 | 东北大学 | A kind of magnetic rheological liquid damper sludge proof method and structure |
| CN110700020A (en) * | 2019-09-20 | 2020-01-17 | 南安市董山尾机械科技有限公司 | Rail vibration isolator with multi-dimensional power |
| CN111005970A (en) * | 2020-01-03 | 2020-04-14 | 株洲时代新材料科技股份有限公司 | Rotary mixing magnetorheological fluid high-speed damper and magnetorheological fluid rotary mixing method thereof |
| 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 |
-
2012
- 2012-10-24 CN CN 201220547285 patent/CN202833832U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033526A (en) * | 2014-06-27 | 2014-09-10 | 谭晓婧 | Magnetorheological damper with float ring and double outlet rods |
| CN104033526B (en) * | 2014-06-27 | 2015-09-30 | 谭晓婧 | The two outstretch pole magnetorheological damper of floating ring |
| CN106594158A (en) * | 2016-11-29 | 2017-04-26 | 上海工程技术大学 | Anti-settlement magneto-rheological fluid damper with turbine |
| CN106763444A (en) * | 2016-12-27 | 2017-05-31 | 东南大学 | A kind of anti-precipitation MR damper |
| CN107725663A (en) * | 2017-10-24 | 2018-02-23 | 东北大学 | A kind of antisolvent precipitation magnetic rheological liquid damper |
| CN107725663B (en) * | 2017-10-24 | 2019-06-18 | 东北大学 | A kind of antisolvent precipitation magnetic rheological liquid damper |
| CN108105320A (en) * | 2017-12-14 | 2018-06-01 | 东北大学 | A kind of magnetic rheological liquid damper sludge proof method and structure |
| CN110700020A (en) * | 2019-09-20 | 2020-01-17 | 南安市董山尾机械科技有限公司 | Rail vibration isolator with multi-dimensional power |
| CN110700020B (en) * | 2019-09-20 | 2021-03-02 | 海门市彼维知识产权服务有限公司 | Rail vibration isolator with multi-dimensional power |
| CN111005970A (en) * | 2020-01-03 | 2020-04-14 | 株洲时代新材料科技股份有限公司 | Rotary mixing magnetorheological fluid high-speed damper and magnetorheological fluid rotary mixing method thereof |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130327 Termination date: 20131024 |