CN202790299U - Novel magnetorheological fluid bumper - Google Patents
Novel magnetorheological fluid bumper Download PDFInfo
- Publication number
- CN202790299U CN202790299U CN 201220471008 CN201220471008U CN202790299U CN 202790299 U CN202790299 U CN 202790299U CN 201220471008 CN201220471008 CN 201220471008 CN 201220471008 U CN201220471008 U CN 201220471008U CN 202790299 U CN202790299 U CN 202790299U
- Authority
- CN
- China
- Prior art keywords
- magnetorheological fluid
- shock absorber
- end cap
- slave cylinder
- clutch release
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a novel magnetorheological fluid bumper, belongs to automobile fittings, solving the problems that the existing magnetorheological fluid bumper can not change a magnetorheological fluid because an end cover and a working cylinder are connected into a whole through a welding manner so that the service life of the bumper is short. The novel magnetorheological fluid bumper provided by the utility model comprises a working cylinder as well as an end cover and a guide base which are welded into a whole together with the working cylinder, wherein the end cover is provided with an acicular air release valve and a valve type pouring liquid hole as well as a channel communicated with an inner cavity of the working cylinder, and the guide base is provided with a channel. The novel magnetorheological fluid bumper provided by the utility model has the characteristics that use is convenient and service life is long.
Description
Technical field
The utility model belongs to auto parts machinery, relates to specifically a kind of Novel magnetorheological fluid shock absorber.
Background technique
In the vehicle traveling process, produce vibrations because elastic element is hit in the suspension system, for improving vehicle running smoothness, be installed in parallel vibration damper with elastic element in the suspension.At present, the vibration damper that adopts on the automotive suspension mostly is passive type, realize cushioning effect such as traditional passive type 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.This magnetorheological fluid shock absorber just belongs to semi-active suspension system.
Magnetic flow liquid is the core of magnetorheological fluid shock absorber, and the performance of magnetic flow liquid directly determines the using effect of magnetorheological fluid shock absorber.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 for example are: iron, ferro-alloy, iron oxide, desalination iron, cementite, carboxyl iron, chromium dioxide, low carbon steel, silicon just, nickel, cobalt and their mixture.Although added the antisolvent precipitation thing in magnetic flow liquid, in the actual motion process, deposited phenomenon still exists.
Affixed by the mode of welding between existing magnetorheological fluid shock absorber end cap and the clutch release slave cylinder is an integral body, when deposited phenomenon occurring, not only affected the damping effect of magnetorheological fluid shock absorber, in case the words that deposited phenomenon increases the weight of, can cause magnetorheological fluid shock absorber normally not use, so that vibration damper is short working life, waste is serious.
The model utility content
The utility model provides a kind of Novel magnetorheological fluid shock absorber for the problems referred to above, can change magnetic flow liquid, have easy to use, the characteristics of long service life.
For addressing the above problem, the technological scheme that the utility model adopts is as follows:
A kind of Novel magnetorheological fluid shock absorber, the end cap and the guide holder that comprise clutch release slave cylinder, be welded as a whole with clutch release slave cylinder, it is characterized in that: described end cap is equipped with needle-like outlet valve and valve formula liquid filling hole, and described end cap is provided with the passage that needle-like outlet valve and valve formula liquid filling hole are communicated with the clutch release slave cylinder inner chamber; Described guide holder is provided with passage.
Further, described guide holder passage is distributed on the guide holder.
Further: described Novel magnetorheological fluid also comprises suspension ring assembly, piston rod, coil, seal ring and guide line, and the cavity between described piston rod and the clutch release slave cylinder is provided with magnetic flow liquid.
Further: described seal ring is installed in inboard and the outside of end cap radial direction.
Further: described guide line links to each other with coil, and draws by the endoporus of piston and piston rod.
Workflow of the present utility model is: add magnetic flow liquid by valve formula liquid filling hole, in the process of adding, by the needle-like outlet valve with Bas Discharged; When precipitation occurring in the magnetorheological fluid shock absorber, can magnetic flow liquid be discharged by valve formula liquid filling hole, refill magnetic flow liquid.
Needle-like outlet valve and valve formula oil hole all belong to prior art products.
Compared with prior art, the utlity model has following beneficial effect:
The utility model is provided with end cap, mode by welding between end cap and the clutch release slave cylinder links together, be provided with needle-like outlet valve and valve formula liquid filling hole at end cap, end cap is provided with needle-like outlet valve and valve formula liquid filling hole and passing through that the clutch release slave cylinder inner chamber is communicated with, and magnetic flow liquid can inject magnetic flow liquid by valve formula liquid filling hole.When precipitation appears in magnetic flow liquid, also can magnetic flow liquid be got rid of by this valve formula liquid filling hole, refill magnetic flow liquid.So that the utlity model has easy to usely, increase the characteristics in the working life of magnetic flow liquid.
Description of drawings
Fig. 1 is the utility model 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 oil hole, 12 is end cap, 13 is passage, and 14 is clutch release slave cylinder, and 15 is coil, 16 is epoxy plastics, and 18 is one-way valve.
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 is included as suspension ring assembly 1, floating piston 2, piston 3, piston rod 4, guide holder 5, seal ring 6-8, guide line 10, end cap 12, passage 13, clutch release slave cylinder 14, coil 15, epoxy plastics 16, one-way valve 17.
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 oil hole 11, can carry out easily the injection of magnetic flow liquid, when precipitation appears in magnetic flow liquid, can get rid of magnetic flow liquid by valve formula oil hole 11, add new magnetic flow liquid.
Piston rod 4 centers are provided with center hole, are convenient to drawing of guide line 10, pass through the piston rod center hole 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 the piston rod to-and-fro motion, floating piston 2 is set in the cavity between piston rod and the clutch release slave cylinder, floating piston 2 is divided into up and down two chambeies with the cavity between piston rod 4 and the clutch release slave cylinder 14, be filled with nitrogen in the cavity of resorption, one-way valve 18 is fixed on the clutch release slave cylinder, is used for the size of control institute inflated with nitrogen pressure.
Automobile is shockproof or when travelling than smaller tremors, guide line 10 is without applied voltage, when detection device detects the automobile generation than big bang, control system applies the pilot certain voltage, coil 15 produces magnetic field under the alive effect outside, at this moment so that the magnetic flow liquid that flows through between piston 3 and the clutch release slave cylinder 14 becomes the class solid, damping increases, the relative clutch release slave cylinder movement velocity of piston rod reduces, reach the purpose that reduces to shake, after vibrations were reduced to certain value, adding the voltage that control system is applied to coil was zero, and magnetic flow liquid returns to again original fluid state.So constantly according to the online vibrating state that detects, constantly adjust the viscosity of coil control voltage and magnetic flow liquid, reach the damping purpose.
Claims (5)
1. Novel magnetorheological fluid shock absorber, the end cap and the guide holder that comprise clutch release slave cylinder, be welded as a whole with clutch release slave cylinder, it is characterized in that: described end cap is equipped with needle-like outlet valve and valve formula liquid filling hole, and described end cap is provided with the passage that needle-like outlet valve and valve formula liquid filling hole are communicated with the clutch release slave cylinder inner chamber; Described guide holder is provided with passage.
2. Novel magnetorheological fluid shock absorber according to claim 1, it is characterized in that: described guide holder passage is distributed on the guide holder.
3. Novel magnetorheological fluid shock absorber according to claim 1, it is characterized in that: described Novel magnetorheological fluid also comprises suspension ring assembly, piston rod, coil, seal ring and guide line, the cavity between described piston rod and the clutch release slave cylinder is provided with magnetic flow liquid.
4. Novel magnetorheological fluid shock absorber according to claim 3, it is characterized in that: described seal ring is installed in inboard and the outside of end cap radial direction.
5. Novel magnetorheological fluid shock absorber according to claim 3, it is characterized in that: described guide line links to each other with coil, and draws by the endoporus of piston and piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220471008 CN202790299U (en) | 2012-09-17 | 2012-09-17 | Novel magnetorheological fluid bumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220471008 CN202790299U (en) | 2012-09-17 | 2012-09-17 | Novel magnetorheological fluid bumper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790299U true CN202790299U (en) | 2013-03-13 |
Family
ID=47817565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220471008 Expired - Fee Related CN202790299U (en) | 2012-09-17 | 2012-09-17 | Novel magnetorheological fluid bumper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790299U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613125A (en) * | 2015-02-05 | 2015-05-13 | 成都北方石油勘探开发技术有限公司 | Drilling magneto-rheological shock absorption device |
| CN105736624A (en) * | 2016-05-12 | 2016-07-06 | 石家庄铁道大学 | Magneto-rheological damper with unidirectional damping property |
| CN106194886A (en) * | 2016-08-31 | 2016-12-07 | 浙江路得坦摩汽车部件股份有限公司 | A kind of piston rod seal |
| CN108980260A (en) * | 2018-10-11 | 2018-12-11 | 中国船舶重工集团公司第七�三研究所 | A kind of MR damper and magnetorheological fluid method for filling |
-
2012
- 2012-09-17 CN CN 201220471008 patent/CN202790299U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613125A (en) * | 2015-02-05 | 2015-05-13 | 成都北方石油勘探开发技术有限公司 | Drilling magneto-rheological shock absorption device |
| CN105736624A (en) * | 2016-05-12 | 2016-07-06 | 石家庄铁道大学 | Magneto-rheological damper with unidirectional damping property |
| CN105736624B (en) * | 2016-05-12 | 2017-02-22 | 石家庄铁道大学 | Magneto-rheological damper with unidirectional damping property |
| CN106194886A (en) * | 2016-08-31 | 2016-12-07 | 浙江路得坦摩汽车部件股份有限公司 | A kind of piston rod seal |
| CN108980260A (en) * | 2018-10-11 | 2018-12-11 | 中国船舶重工集团公司第七�三研究所 | A kind of MR damper and magnetorheological fluid method for filling |
| CN108980260B (en) * | 2018-10-11 | 2024-04-02 | 中国船舶重工集团公司第七一三研究所 | Magnetorheological damper and magnetorheological fluid filling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130313 Termination date: 20150917 |
|
| EXPY | Termination of patent right or utility model |