CN202833830U - Twin-stage magnetorheological fluid damper - Google Patents
Twin-stage magnetorheological fluid damper Download PDFInfo
- Publication number
- CN202833830U CN202833830U CN 201220540764 CN201220540764U CN202833830U CN 202833830 U CN202833830 U CN 202833830U CN 201220540764 CN201220540764 CN 201220540764 CN 201220540764 U CN201220540764 U CN 201220540764U CN 202833830 U CN202833830 U CN 202833830U
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- magnetorheological fluid
- coil
- stage
- twin
- piston
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Abstract
The utility model belongs to car damping, and relates to a twin-stage magnetorheological fluid damper which is used for solving the problems that a magnetic induction intensity range of an existing magnetorheological fluid damper cannot meet operation requirements of magnetorheological fluid. The twin-stage magnetorheological fluid damper comprises a working cylinder, a piston rod, a piston and a control line; the piston rod is provided with a first coil and a second coil; and the first coil and the second coil are opposite in winding direction. The twin-stage magnetorheological fluid damper can improve magnetic field distribution of the magnetorheological fluid damper and increase the magnetic induction intensity range.
Description
Technical field
The utility model belongs to the vibration damper that automobile shock is used, and relates to specifically a kind of twin-stage 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.
For example 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.
Existing magnetorheological fluid shock absorber adopts piston, clutch release slave cylinder and the magnetic flow liquid of single-stage magnetic circuit to form a complete magnetic circuit, the magnetic line of force that its coil produces brings out to send out from one of electromagnetic piston and passes magnetic flow liquid, pass through clutch release slave cylinder, get back to piston from the other end of piston, form the flux loop of a closure.In whole loop, the magnetic line of force is parallel to clutch release slave cylinder perpendicular to magnetic flow liquid, the Magnetic flux density of vibration damper work is higher, because the low easily generation of the permeability of work magnetic flux supersaturation, the magnetic intensity that affects whole magnetic circuit increases, and can't satisfy the magnetic induction intensity scope of magnetic flow liquid job requirement.
The model utility content
The utility model can't satisfy the magnetic flow liquid job requirement for existing magnetorheological fluid shock absorber magnetic induction intensity scope, and a kind of twin-stage magnetorheological fluid shock absorber is provided, and can improve the Magnetic field distribution of magnetorheological fluid shock absorber, increases the magnetic induction intensity scope.
For addressing the above problem, the technological scheme that the utility model adopts is as follows:
A kind of twin-stage magnetorheological fluid shock absorber comprises clutch release slave cylinder, piston rod, piston and guide line, it is characterized in that: described piston rod is provided with the first coil and the second coil.
Further, described the first coil and the second coil around on the contrary.
Further, described the first coil links to each other with guide line with the second coil.
Further, described guide line is drawn by the endoporus of piston and piston rod.
Compared with prior art, the utlity model has following beneficial effect:
One, the utility model is provided with two coils at piston rod, can improve the Magnetic field distribution of magnetic flow liquid, increases the magnetic induction intensity scope, thereby satisfies the magnetic flow liquid job requirement of magnetorheological fluid shock absorber.
Two, the utility model be located at piston rod two coils around on the contrary, than two coils around to identical winding, the effect of Magnetic field distribution of improving magnetic flow liquid is more obvious, improves usability of the present utility model.
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, and 4 is piston rod, and 5 is guide holder, 6,7,8 is combined seal ring, and 9 is guide line, and 10 is end cap, and 11 is clutch release slave cylinder, 12 is the first coil, and 13 is the second coil, and 14 is epoxy plastics, and 15 is one-way valve.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
With reference to Fig. 1, the utility model comprises suspension ring assembly 1, floating piston 2, piston 3, piston rod 4, guide holder 5, seal ring 6-8, guide line 9, end cap 10, clutch release slave cylinder 11, the first coils 12, the second coils 13, epoxy plastics 14, one-way valve 15.
Mode by welding between the utility model end cap 10 and the clutch release slave cylinder 11 is connected to an integral body, and piston rod 4 centers are provided with center hole, are convenient to drawing of guide line 9, pass through the piston rod center hole for preventing magnetic flow liquid, is provided with sealing epoxy plastics 14; 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, in the cavity between piston 3 and the clutch release slave cylinder 11 floating piston 2 is set, floating piston 2 is divided into up and down two chambeies with the cavity between piston 3 and the clutch release slave cylinder 11, be filled with nitrogen in the cavity of resorption, one-way valve 15 is fixed on the clutch release slave cylinder 11, is used for the size of control institute inflated with nitrogen pressure.
The utility model is provided with the first coil 12 and the second coil 13 at piston rod 4, the first coil 12 and the second coil 13 around to opposite, so that the utility model can improve Magnetic field distribution, increase the magnetic induction intensity scope, thereby satisfy the magnetic flow liquid job requirement of magnetorheological fluid shock absorber.
Claims (4)
1. a twin-stage magnetorheological fluid shock absorber comprises clutch release slave cylinder, piston rod, piston and guide line, it is characterized in that: described piston rod is provided with the first coil and the second coil.
2. twin-stage magnetorheological fluid shock absorber according to claim 1 is characterized in that: described the first coil and the second coil around on the contrary.
3. twin-stage magnetorheological fluid shock absorber according to claim 2, it is characterized in that: described the first coil links to each other with guide line with the second coil.
4. twin-stage magnetorheological fluid shock absorber according to claim 3, it is characterized in that: described guide line is drawn by the endoporus of piston and piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220540764 CN202833830U (en) | 2012-10-22 | 2012-10-22 | Twin-stage magnetorheological fluid damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220540764 CN202833830U (en) | 2012-10-22 | 2012-10-22 | Twin-stage magnetorheological fluid damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833830U true CN202833830U (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220540764 Expired - Fee Related CN202833830U (en) | 2012-10-22 | 2012-10-22 | Twin-stage magnetorheological fluid damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833830U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511547A (en) * | 2013-10-28 | 2014-01-15 | 重庆大学 | Self-sensing magnetorheological damper adopting spiral damping channel |
| CN103758911A (en) * | 2014-01-27 | 2014-04-30 | 安徽柳工起重机有限公司 | Vehicle magneto-rheological oil gas suspension damping valve |
-
2012
- 2012-10-22 CN CN 201220540764 patent/CN202833830U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511547A (en) * | 2013-10-28 | 2014-01-15 | 重庆大学 | Self-sensing magnetorheological damper adopting spiral damping channel |
| CN103758911A (en) * | 2014-01-27 | 2014-04-30 | 安徽柳工起重机有限公司 | Vehicle magneto-rheological oil gas suspension damping valve |
| CN103758911B (en) * | 2014-01-27 | 2016-02-10 | 安徽柳工起重机有限公司 | The magnetorheological hydro pneumatic suspension orifice valve of vehicle |
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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: 20130327 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |