CN202833829U - Magnetorheological fluid shock absorber - Google Patents
Magnetorheological fluid shock absorber Download PDFInfo
- Publication number
- CN202833829U CN202833829U CN 201220471010 CN201220471010U CN202833829U CN 202833829 U CN202833829 U CN 202833829U CN 201220471010 CN201220471010 CN 201220471010 CN 201220471010 U CN201220471010 U CN 201220471010U CN 202833829 U CN202833829 U CN 202833829U
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- China
- Prior art keywords
- shock absorber
- magnetorheological fluid
- fluid shock
- end cap
- slave cylinder
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Abstract
The utility model relates to a magnetorheological fluid shock absorber and belongs to automobile parts. The magnetorheological fluid shock absorber is used for solving the problems that an existing magnetorheological fluid shock absorber in the prior art can not enable the temperature of magnetorheological fluid to keep stable and is inconvenient to disassemble. The magnetorheological fluid shock absorber comprises a working cylinder and an end cover. A shell is arranged outside the working cylinder. A sealing cavity is formed by the shell and the working cylinder. Cooling liquid is arranged in the sealing cavity. The working cylinder is connected with the end cover through threads. The magnetorheological fluid shock absorber has the advantages of being convenient to use and long in service life.
Description
Technical field
The utility model belongs to auto parts machinery, relates to specifically a kind of 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.
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, 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.Mode by welding between existing magnetorheological fluid shock absorber end cap and the clutch release slave cylinder links together, and is non-dismountable, and, the stress concentration phenomenon that welding connecting mode produces is more serious, inhomogeneous because being heated, sealing deformation easily appears, and cause sealing effect poor.Make magnetorheological fluid shock absorber short working life, serious waste phenomenon.
The temperature stability of magnetic flow liquid itself is poor simultaneously, and existing magnetorheological fluid shock absorber structurally can not keep the temperature stabilization of magnetic flow liquid, thereby affects damping effect.
The model utility content
The utility model is for the problems referred to above, and a kind of magnetorheological fluid shock absorber is provided, and has to guarantee the magnetic flow liquid temperature stabilization, and is easy to use, good sealing effect, 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 magnetorheological fluid shock absorber comprises clutch release slave cylinder and end cap, it is characterized in that: described clutch release slave cylinder is provided with housing outward, and housing and clutch release slave cylinder consist of Seal cage, in the described Seal cage cooling liquid are housed, and described housing is provided with cooling liquid inlet and outlet; Described clutch release slave cylinder inner chamber is provided with connecting thread, and described end cap is provided with the screw thread suitable with clutch release slave cylinder inner chamber connecting thread, and the end cap of described end cap is made as regular polygon.
Preferably, described housing is the regular polygon housing.
Further, described housing is provided with thermal resistance temperature sensor.
Further, described thermal resistance temperature sensor is the probe type thermal resistance temperature sensor.
Further, described probe type thermal resistance temperature sensor is located at housing cooling liquid outlet place.
Further, described cooling liquid outlet is connected conduit and is connected with being connected with the import of automobile cooling system respectively with import.
Further, described end cap and described clutch release slave cylinder screw thread are fine thread.
Further, described end cap is equipped with seal ring.
Working principle of the present utility model is: magnetorheological fluid shock absorber in use, the temperature of magnetic flow liquid slowly raises, when the coolant temperature in temperature transducer detects housing reaches uniform temperature, by an automatic control switch, in water intake injected cavity, the cooling liquid in the cavity began circulation to the cooling liquid of automobile cooling system, and the temperature of magnetic flow liquid is kept within limits by conduit, guarantee its temperature stabilization, thereby guarantee the using effect of magnetorheological fluid shock absorber.When finding that the vibration damper damping effect reduces, take end cap apart, observe the precipitation situation of magnetic flow liquid, according to circumstances change magnetic flow liquid.
Compared with prior art, the utlity model has following beneficial effect:
One, the utility model is provided with housing outside clutch release slave cylinder, in the Seal cage that housing and clutch release slave cylinder form cooling liquid is arranged, and can make the temperature control of magnetic flow liquid within limits, guarantees its temperature stability, thereby guarantees the using effect of magnetorheological fluid shock absorber.
Two, the mode that is threaded connection of the utility model end cap and clutch release slave cylinder when the vibration damper problem, is taken end cap apart, just can continue to use after changing magnetic flow liquid.Be equipped with simultaneously seal ring, compare original welding manner, have good sealing effect, easy to use, the advantage of vibration damper long service life.
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 combined seal ring, 9 is guide line, and 10 is end cap, and 11 are outlet, 12 is temperature transducer, and 13 is clutch release slave cylinder, and 14 is Seal cage, 15 is housing, and 16 is coil, and 17 is epoxy plastics, 18 are import, and 19 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 comprises suspension ring assembly 1, floating piston 2, piston 3, piston rod 4, guide holder 5, combined seal ring 6-8, guide line 9, end cap 10, housing 15, coil 16, one-way valve 19, outside clutch release slave cylinder 13, be provided with the housing 15 of dodecagon, housing 15 is used for installing additional cooling liquid with the Seal cage 14 that clutch release slave cylinder forms, outside housing 15, be provided with cooling liquid inlet 18 and outlet 11, import 18 be connected 11 and be connected with automobile cooling system through conduit.Further, import 18 connects the outlet of cooling system, and outlet 11 connects the import of cooling system, is tightly connected by fine thread between end cap 10 and the clutch release slave cylinder 13, and the end cap of end cap 10 also is made as the dodecagon shape, and is easy for removal and installation.
The piston rod center is provided with center hole, is convenient to drawing of guide line 9, passes through the piston rod center hole for preventing magnetic flow liquid, is provided with sealing epoxy plastics 17; 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 13, be filled with nitrogen in the cavity of resorption, one-way valve 19 is fixed on the clutch release slave cylinder, is used for the size of control institute inflated with nitrogen pressure.
The utility model in use, the temperature of magnetic flow liquid slowly raises, when the coolant temperature in temperature transducer detects housing 15 reaches uniform temperature, by an automatic control switch, in water intake injected cavity, the cooling liquid in the cavity began circulation to the cooling liquid of automobile cooling system, and the temperature of magnetic flow liquid is kept within limits by conduit, guarantee its temperature stabilization, thereby guarantee the using effect of magnetorheological fluid shock absorber.When finding that the vibration damper damping effect reduces, take end cap 10 apart, observe the precipitation situation of magnetic flow liquid, according to circumstances change magnetic flow liquid.
Automobile is shockproof or when travelling than smaller tremors, guide line 9 is without applied voltage, when detection device detects the automobile generation than big bang, control system applies the pilot certain voltage, coil 16 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 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 (8)
1. a magnetorheological fluid shock absorber comprises clutch release slave cylinder and end cap, it is characterized in that: described clutch release slave cylinder is provided with housing outward, and housing and clutch release slave cylinder consist of Seal cage, in the described Seal cage cooling liquid are housed, and described housing is provided with cooling liquid inlet and outlet; Described clutch release slave cylinder inner chamber is provided with connecting thread, and described end cap is provided with the screw thread suitable with clutch release slave cylinder inner chamber connecting thread, and the end cap of described end cap is made as regular polygon.
2. magnetorheological fluid shock absorber according to claim 1, it is characterized in that: described housing is regular polygon.
3. magnetorheological fluid shock absorber according to claim 2, it is characterized in that: described housing is provided with thermal resistance temperature sensor.
4. magnetorheological fluid shock absorber according to claim 3, it is characterized in that: described thermal resistance temperature sensor is the probe type thermal resistance temperature sensor.
5. magnetorheological fluid shock absorber according to claim 4, it is characterized in that: described probe type thermal resistance temperature sensor is located at housing cooling liquid outlet place.
6. magnetorheological fluid shock absorber according to claim 1, it is characterized in that: described cooling liquid outlet is connected conduit and is connected with being connected with the import of automobile cooling system respectively with import.
7. magnetorheological fluid shock absorber according to claim 1, it is characterized in that: described end cap and described clutch release slave cylinder screw thread all are made as fine thread.
8. magnetorheological fluid shock absorber according to claim 1, it is characterized in that: described end cap is equipped with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220471010 CN202833829U (en) | 2012-09-17 | 2012-09-17 | Magnetorheological fluid shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220471010 CN202833829U (en) | 2012-09-17 | 2012-09-17 | Magnetorheological fluid shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833829U true CN202833829U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220471010 Expired - Fee Related CN202833829U (en) | 2012-09-17 | 2012-09-17 | Magnetorheological fluid shock absorber |
Country Status (1)
| Country | Link |
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| CN (1) | CN202833829U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179878A (en) * | 2014-09-09 | 2014-12-03 | 安徽工程大学 | Self-cooling magneto-rheological damper |
| CN104235258A (en) * | 2014-09-09 | 2014-12-24 | 安徽工程大学 | Magnetorheological damper for automotive suspension |
| CN104653683A (en) * | 2013-11-22 | 2015-05-27 | 丹阳市中远车灯有限公司 | Air damper |
| CN107448044A (en) * | 2017-03-29 | 2017-12-08 | 华南理工大学 | A kind of Self-resetting marmem damper and its assembly method |
| CN109432687A (en) * | 2018-12-06 | 2019-03-08 | 北京奥康达体育产业股份有限公司 | A kind of countable horizontal bar slant abdominal board of wisdom |
| CN111237367A (en) * | 2020-01-13 | 2020-06-05 | 佛山科学技术学院 | Electromagnetic adjustable shock absorber |
-
2012
- 2012-09-17 CN CN 201220471010 patent/CN202833829U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653683A (en) * | 2013-11-22 | 2015-05-27 | 丹阳市中远车灯有限公司 | Air damper |
| CN104179878A (en) * | 2014-09-09 | 2014-12-03 | 安徽工程大学 | Self-cooling magneto-rheological damper |
| CN104235258A (en) * | 2014-09-09 | 2014-12-24 | 安徽工程大学 | Magnetorheological damper for automotive suspension |
| CN104179878B (en) * | 2014-09-09 | 2016-02-24 | 安徽工程大学 | A kind of self-cooling type MR damper |
| CN107448044A (en) * | 2017-03-29 | 2017-12-08 | 华南理工大学 | A kind of Self-resetting marmem damper and its assembly method |
| CN109432687A (en) * | 2018-12-06 | 2019-03-08 | 北京奥康达体育产业股份有限公司 | A kind of countable horizontal bar slant abdominal board of wisdom |
| CN111237367A (en) * | 2020-01-13 | 2020-06-05 | 佛山科学技术学院 | Electromagnetic adjustable shock absorber |
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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: 20130917 |