CN102954143A - Metal magnetic fluid guide seal device for motor vehicle dampers - Google Patents
Metal magnetic fluid guide seal device for motor vehicle dampers Download PDFInfo
- Publication number
- CN102954143A CN102954143A CN2011102477384A CN201110247738A CN102954143A CN 102954143 A CN102954143 A CN 102954143A CN 2011102477384 A CN2011102477384 A CN 2011102477384A CN 201110247738 A CN201110247738 A CN 201110247738A CN 102954143 A CN102954143 A CN 102954143A
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- macromolecule
- sealing
- seal
- pole shoe
- ring
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- 239000011553 magnetic fluid Substances 0.000 title claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 21
- 239000002184 metal Substances 0.000 title claims abstract description 21
- 229920002521 macromolecule Polymers 0.000 claims abstract description 41
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 14
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 66
- 230000005389 magnetism Effects 0.000 claims description 26
- 239000003638 chemical reducing agent Substances 0.000 claims description 21
- 239000002828 fuel tank Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 238000013016 damping Methods 0.000 description 4
- 230000006837 decompression Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- 230000005405 multipole Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003097 mucus Anatomy 0.000 description 2
- 239000003305 oil spill Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 244000227633 Ocotea pretiosa Species 0.000 description 1
- 235000004263 Ocotea pretiosa Nutrition 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Vehicle Body Suspensions (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a metal magnetic fluid guide seal device for motor vehicle dampers. The metal magnetic fluid guide seal device comprises a seal guide seat, a limit ring, seal pole shoes, a rare earth seal permanent magnet, seal pole shoe isolating rings, a damper piston rod, a seal clamp ring, a macromolecule permanent magnet multi-toothed seal ring, a seal device retaining ring, a macromolecule guider sleeve, a rare earth guide permanent magnet, macromolecule soft magnet guide pole shoes, guide pole shoe isolating rings and a damper oil storage cylinder. Certain clearances are kept between two sets of seal pole shoes and the damper piston rod and two sets of macromolecule soft magnet guide pole shoes and the damper piston rod. Four rectangular toothed rings are evenly distributed on inner cylindrical surfaces of the pole shoes. The macromolecule permanent magnet multi-toothed seal ring is mounted on an outer circular groove of the seal guide seat. The defects that the existing guide seals for motor vehicle dampers are fast in heating, high in oil leakage rate, high in high- and low-temperature noise and high in internal leakage, have no two-way seal capacity, pollute environment, cannot be used repeatedly and the like are overcome. The metal magnetic fluid guide seal device is simple in structure, and slide friction is reduced greatly while high- and low-temperature two-way seal capacity is improved.
Description
Technical field
The invention belongs to the automotive component field, what be used for automotive oil, atmospheric pressure vibration damper leads, seals control, i.e. metal magnetofluid guiding sealing device for motor vehicle damper without leakage.
Background technique
The conventional motor vehicle vibration damper is large because of contact-type interference sealing wear at present, heating is fast, sealing mostly is greatly separation assembly with guider and causes the disalignment wearing and tearing, unparalleled to sealability, oil spill rate is high, internal leakage is large, packing grease consumption is fast, sclerosis makes the large sealing wear that reaches of piston rod movement noise change become large during seal low temperature, softening during seal high temperature, unstability, leakage of oil and leakage lubricating grease, guider leaks the large hydraulic lost motion that causes and shakes the traffic safety that jeopardizes out of control that causes travelling, waste product is many in the production, with low content of technology, befouling environment, consumption of natural resource is many, working life is short, temperature limit is narrow, the defective such as can not reuse.
Summary of the invention
The purpose of this invention is to provide and a kind ofly collect sealing, be directed at one, without metal magnetofluid guiding sealing device for motor vehicle damper electromagnetism, chemical contamination, low in resources consumption, leak free, that can reuse.
In order to achieve the above object, the present invention has adopted following technological scheme;
This real invention organization plan comprises; Comprise seals rod guide (1), limited ring (2), sealing pole shoe (3), rare earth sealing permanent magnet (4), sealing pole shoe isolating ring (5), piston lever of reducer (6), sealing collar (7), the multiple tooth seal ring of macromolecule permanent magnetism (8), seal arrangement ring washer (9), macromolecule guider cover (10), rare earth guiding permanent magnet (11), macromolecule soft magnetism guiding pole shoe (12), guiding pole shoe isolating ring (13), vibration damper fuel tank (14) forms metal magnetofluid guiding sealing device for motor vehicle damper.Wherein two groups of sealing pole shoes (3) and two groups of macromolecule soft magnetisms guiding pole shoes (12) all with piston lever of reducer maintenance certain interval, in the gap, be full of the metallic magnetic fluid, be distributed with four and four above rectangle ring gears on the various pole shoe inner cylindrical surfaces.On the multiple tooth seal ring of macromolecule permanent magnetism (8) cylindrical four or more annular tooth is arranged, be installed in maintenance and vibration damper fuel tank (14) inwall trace interference fit in seals rod guide (1) circular groove, be full of the metallic magnetic fluid at its between cog.The metal magnetofluid guiding sealing device for motor vehicle damper that forms, be installed in vibration damper fuel tank (14) upper end, in-60 ℃～200 ℃ temperature ranges, to vibration damper fuel tank (14) inner high voltage and vacuum work medium implement that solid does not contact sealing, leads, lubricates, prevents internal high pressure oil, gas to the outside leakage, prevent inside occur moment during vacuum exterior materials enter in the vibration damper fuel tank (14).The invention solves existing motor vehicle damper interference sealing heating quick abrasion, sealing guiding separate, unparalleled to sealability, oil spill rate is high, high low temperature operating noise is large, guider leak large cause hydraulic lost motion jeopardize traffic safety, produce in many, the befouling environment of waste product, temperature limit narrow, the defective such as can not reuse.It is simple in structure, rubs in slip and also greatly improves high and low temperature two way sealed ability when sassafras greatly reduces.Guiding, seal arrangement are the critical components of automotive oil, atmospheric pressure formula vibration damper, directly determine life-span, inefficacy, leakage, the pollution problem of vibration damper.
Control program of the present invention comprises; It is good to have adopted in heat conduction, have in seals rod guide (1) the upper end endoporus of the non-magnet material of magnetic screen function non-magnetic limited ring (2) has been installed, the sealing pole shoe (3) of high permeability material, rare earth sealing permanent magnet (4), non-magnetic sealing pole shoe isolating ring (5), consisting of closed magnetic path by the metallic magnetic fluid that injects in the axial multiple tooth structure on sealing pole shoe (3) and the gap between the piston lever of reducer (6) makes the metallic magnetic fluid form multipole continuous metal magnetic fluid sealing ring at sealing pole shoe (1) and piston lever of reducer (6) gap location, to realize that the metallic magnetic fluid that injects in the gap between the contactless between to-and-fro motion machinery structure solid is consisted of closed magnetic path makes the metallic magnetic fluid form multipole continuous metal magnetic fluid sealing ring at sealing pole shoe (1) and piston lever of reducer (6) gap location, to realize contactless clearance seal between to-and-fro motion machinery structure solid, simultaneously this kinematic pair is lubricated with heat and conducts on the seals rod guide (1), the outer wall through vibration damper fuel tank (14) distributes in moving air again.Adopt wear-resisting, high temperature resistant, heat conduction, non-magnetic macromolecule guider cover (10) is as decompression and guiding basis, form some mucus attitude seal rings at the metallic magnetic fluid that is positioned between macromolecule soft magnetism guiding pole shoe (12) and the piston lever of reducer (6) under rare earth guiding permanent magnet (11) effect, and piston lever of reducer (6) surface constantly is lubricated, cooling, the ultra micro polishing, make by narrow non-magnetic guiding pole shoe isolating ring (13) and to be positioned at, press gradient and apparent viscosity graded in metallic magnetic fluid between lower two macromolecule soft magnetisms guiding pole shoes (12) produces under magnetic fields, consequent magnetic pressure make piston lever of reducer (6) floats on seals rod guide (1) by magnetcisuspension axle center with realize leading piston lever of reducer (6) and macromolecule soft magnetism pole shoe (12) reach and macromolecule guider cover (10) between the reciprocating sealing of contactless and leading role.By the high pressure system that seals rod guide (1) and the small annular gap of fuel tank (14) inwall form the internal high pressure damping oil below seals rod guide (1), carry out the rear magnetic circuit with the multiple tooth sealing ring of macromolecule permanent magnetism (8) and metallic magnetic fluid and damper fuel tank (14) inwall formation of damping decompression, make the metallic magnetic fluid touch at the multiple tooth sealing ring of macromolecule permanent magnetism (8) and damper fuel tank (14) inwall knot the metal magnetic fluid sealing ring that forms the static state of all standing on line, replaced the nitrile rubber "O"-ring and solved it because of die joint and the injured leakage that is directed at is installed.
Description of drawings
Accompanying drawing metal magnetofluid guiding sealing device for motor vehicle damper structural drawing;
Among the figure; Seals rod guide (1), limited ring (2), sealing pole shoe (3), rare earth sealing permanent magnet (4), sealing pole shoe isolating ring (5), piston lever of reducer (6), sealing collar (7), the multiple tooth seal ring of macromolecule permanent magnetism (8), seal arrangement ring washer (9), macromolecule guider cover (10), rare earth guiding permanent magnet (11), macromolecule soft magnetism guiding pole shoe (12), guiding pole shoe isolating ring (13), vibration damper fuel tank (14).
Embodiment
The present invention will be further described below in conjunction with accompanying drawing:
As shown in drawings in the motor vehicle damper that uses power free metal magnetofluid guiding sealing device for motor vehicle damper, its magnetic pressure characteristic of metal magnetic fluid sealing ring that is positioned between sealing pole shoe (3) and the piston lever of reducer (6) has the ability of repelling foreign matter, therefore, can prevent that rainwater, mud, small crushed stone on the road are deposited on motor vehicle damper guiding-sealing device motion vice division chief, can replace the normal operation circumstances of nitrile rubber oil seal, energy effective guarantee motor vehicle damper.
Because it is good to have adopted in heat conduction, have in seals rod guide (1) the upper end endoporus of the non-magnet material of magnetic screen function non-magnetic limited ring (2) has been installed, the sealing pole shoe (3) of high permeability material iron based nano crystal, rare earth sealing permanent magnet (4), non-magnetic sealing pole shoe isolating ring (5), consisting of closed magnetic path by the metallic magnetic fluid that injects in the axial multiple tooth structure on sealing pole shoe (3) and the gap between the piston lever of reducer (6) makes the metallic magnetic fluid form multipole continuous metal magnetic fluid sealing ring at sealing pole shoe (1) and piston lever of reducer (6) gap location, to realize contactless clearance seal between to-and-fro motion machinery structure solid, simultaneously this kinematic pair is lubricated with heat and conducts on the seals rod guide (1), the outer wall through vibration damper fuel tank (14) distributes in moving air again.
By the high pressure system that seals rod guide (1) and the small annular gap of fuel tank (14) inwall form the internal high pressure damping oil below seals rod guide (1), carry out the rear magnetic circuit with the multiple tooth sealing ring of macromolecule permanent magnetism (8) and metallic magnetic fluid and damper fuel tank (14) inwall formation of damping decompression, make the metallic magnetic fluid touch at the multiple tooth sealing ring of macromolecule permanent magnetism (8) and damper fuel tank (14) inwall knot the metal magnetic fluid sealing ring that forms the static state of all standing on line, replaced the nitrile rubber "O"-ring and solved because of die joint and the injured leakage that is directed at is installed.
Adopt wear-resisting, high temperature resistant, heat conduction, non-magnetic macromolecule guider cover (10) is as decompression and guiding basis, form some mucus attitude seal rings at the metallic magnetic fluid that is positioned between macromolecule soft magnetism guiding pole shoe (12) and the piston lever of reducer (6) under rare earth guiding permanent magnet (11) effect, and piston lever of reducer (6) surface constantly is lubricated, cooling, the ultra micro polishing, make by narrow non-magnetic guiding pole shoe isolating ring (13) and to be positioned at, press gradient and apparent viscosity graded in metallic magnetic fluid between lower two macromolecule soft magnetisms guiding pole shoes (12) produces under magnetic fields, consequent magnetic pressure make piston lever of reducer (6) floats on seals rod guide (1) by magnetcisuspension axle center with realize leading piston lever of reducer (6) and macromolecule soft magnetism pole shoe (12) reach and macromolecule guider cover (10) between the reciprocating sealing of contactless and leading role.
Utilize high technology nano metal magnetic fluid intellectual material as the metal magnetofluid guiding sealing device for motor vehicle damper of sealing medium, its control procedure does not need to add electronics control system, long service life, easy care, reusable, nothing leakage, pollution-free.Therefore, be low cost, the low energy consumption device of Passive Shape Control.
Claims (2)
1. metal magnetofluid guiding sealing device for motor vehicle damper, comprise seals rod guide (1), limited ring (2), sealing pole shoe (3), rare earth sealing permanent magnet (4), sealing pole shoe isolating ring (5), piston lever of reducer (6), sealing collar (7), the multiple tooth seal ring of macromolecule permanent magnetism (8), seal arrangement ring washer (9), macromolecule guider cover (10), rare earth guiding permanent magnet (11), macromolecule soft magnetism guiding pole shoe (12), guiding pole shoe isolating ring (13), vibration damper fuel tank (14), seals rod guide (1) upper end is installed in flange place, vibration damper fuel tank (14) inwall upper end, seals rod guide (1) lower end is spacing by the seal arrangement ring washer (9) that is installed in vibration damper fuel tank (14) inboard wall groove place, first sealing pole shoe (3) is installed in the endoporus of seals rod guide (1) upper end successively, limited ring (2), sealing pole shoe isolating ring (5), rare earth sealing permanent magnet (4), second sealing pole shoe (3), sealing collar (7), in the endoporus of seals rod guide (1) lower end, press-fit macromolecule guider cover (10), in macromolecule guider cover (10), be packaged with successively first macromolecule soft magnetism guiding pole shoe (12), guiding pole shoe isolating ring (13), rare earth guiding permanent magnet (11), second macromolecule soft magnetism guiding pole shoe (12), outside seals rod guide (1), between round recessed and the vibration damper fuel tank (14) the multiple tooth seal ring of macromolecule permanent magnetism (8) is installed, simultaneously at two sealing pole shoes (3), be evenly distributed with four and four above rectangle ring gears on two macromolecule soft magnetisms guiding pole shoe (12) inner cylindrical surface and the multiple tooth seal ring of macromolecule permanent magnetism (8) external cylindrical surface.
2. metal magnetofluid guiding sealing device for motor vehicle damper according to claim 1, its characteristics are that described two sealing pole shoes (3) and piston lever of reducer (6) are combined into sealing configuration, macromolecule guider cover (10) and two macromolecule soft magnetism guiding pole shoes (12) are combined into the sealing guide structure with piston lever of reducer (6), wherein between sealing pole shoe (3) and macromolecule soft magnetism guiding pole shoe (12) and piston lever of reducer (6), all keep certain interval, in the gap, be full of the metallic magnetic fluid, the multiple tooth seal ring of macromolecule permanent magnetism (8) and vibration damper fuel tank (14) inwall trace interference fit are full of the metallic magnetic fluid at its between cog.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110247738.4A CN102954143B (en) | 2011-08-26 | 2011-08-26 | Metal magnetofluid guiding sealing device for motor vehicle damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110247738.4A CN102954143B (en) | 2011-08-26 | 2011-08-26 | Metal magnetofluid guiding sealing device for motor vehicle damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102954143A true CN102954143A (en) | 2013-03-06 |
| CN102954143B CN102954143B (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110247738.4A Active CN102954143B (en) | 2011-08-26 | 2011-08-26 | Metal magnetofluid guiding sealing device for motor vehicle damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN102954143B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1423778A (en) * | 1972-02-12 | 1976-02-04 | Fichtel & Sachs Ag | High-pressure sealing arrangement |
| DE3211274A1 (en) * | 1981-03-26 | 1982-10-21 | William Lewis 48174 Romulus Mich. Sheppard | Lubricating device for a seal |
| US4484732A (en) * | 1982-06-01 | 1984-11-27 | Gould Larry D | Constant and variable force tensioning devices utilizing atmospheric pressure |
| CN1184906A (en) * | 1997-12-05 | 1998-06-17 | 中国矿业大学 | Magnetic fluid sealing device |
| CN2542480Y (en) * | 2002-05-30 | 2003-04-02 | 上海汇众汽车制造有限公司 | Double-barrel slide valve magnetic rheological damper |
| CN101776150A (en) * | 2010-03-08 | 2010-07-14 | 北京交通大学 | Combined reciprocating sealing device of magnetic liquid, C-shaped slip ring and Y x type seal ring |
| CN202280787U (en) * | 2011-08-26 | 2012-06-20 | 张博隆 | Metal magnetofluid guiding sealing device for motor vehicle damper |
-
2011
- 2011-08-26 CN CN201110247738.4A patent/CN102954143B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1423778A (en) * | 1972-02-12 | 1976-02-04 | Fichtel & Sachs Ag | High-pressure sealing arrangement |
| DE3211274A1 (en) * | 1981-03-26 | 1982-10-21 | William Lewis 48174 Romulus Mich. Sheppard | Lubricating device for a seal |
| US4484732A (en) * | 1982-06-01 | 1984-11-27 | Gould Larry D | Constant and variable force tensioning devices utilizing atmospheric pressure |
| CN1184906A (en) * | 1997-12-05 | 1998-06-17 | 中国矿业大学 | Magnetic fluid sealing device |
| CN2542480Y (en) * | 2002-05-30 | 2003-04-02 | 上海汇众汽车制造有限公司 | Double-barrel slide valve magnetic rheological damper |
| CN101776150A (en) * | 2010-03-08 | 2010-07-14 | 北京交通大学 | Combined reciprocating sealing device of magnetic liquid, C-shaped slip ring and Y x type seal ring |
| CN202280787U (en) * | 2011-08-26 | 2012-06-20 | 张博隆 | Metal magnetofluid guiding sealing device for motor vehicle damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102954143B (en) | 2016-03-23 |
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Effective date of registration: 20240801 Address after: Floor 4-8, Unit 1, Building 1, No. 233 Jiaozi Avenue, High tech Zone, Chengdu City, Sichuan Province 610000 Patentee after: Sichuan Zigzag Industrial Internet Co.,Ltd. Country or region after: China Address before: Room 2-729, Business Center, No. 183 Aerospace North Road, Longquanyi District, Chengdu City, Sichuan Province 610100 Patentee before: Zhang Bolong Country or region before: China Patentee before: Zhang Yi |
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