CN102954143B - Metal magnetofluid guiding sealing device for motor vehicle damper - Google Patents
Metal magnetofluid guiding sealing device for motor vehicle damper Download PDFInfo
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- CN102954143B CN102954143B CN201110247738.4A CN201110247738A CN102954143B CN 102954143 B CN102954143 B CN 102954143B CN 201110247738 A CN201110247738 A CN 201110247738A CN 102954143 B CN102954143 B CN 102954143B
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Abstract
The invention discloses a kind of metal magnetofluid guiding sealing device for motor vehicle damper, comprise seals rod guide, limited ring, sealing pole shoe, rare earth sealing permanent magnet, sealing pole shoe isolating ring, piston lever of reducer, sealing collar, the multiple tooth seal ring of macromolecule permanent magnetism, seal arrangement back-up ring, macromolecule guider cover, rare earth guiding permanent magnet, macromolecule soft magnetism guiding pole shoe, guiding pole shoe isolating ring, vibration damper fuel tank.Two groups of sealing pole shoes and two groups of macromolecule soft magnetism guiding pole shoes all keep certain interval with piston lever of reducer, uniform four rectangle ring gears in various pole shoe inner cylinder.The multiple tooth seal ring of macromolecule permanent magnetism is arranged in seals rod guide peripheral groove.The invention solves the heating of existing motor vehicle damper pilot seal fast, without bi-directional sealing capabilities, oil spill rate is high, high/low temperature noise is large, internal leakage greatly, befouling environment, the defect such as can not to reuse.Its structure is simple, and sliding rubs while sassafras greatly reduces also improves high and low temperature bi-directional sealing capabilities.
Description
Technical field
The invention belongs to automotive component field, the No leakage for automotive oil, atmospheric pressure vibration damper leads, seal control, i.e. metal magnetofluid guiding sealing device for motor vehicle damper.
Background technique
Current conventional motor vehicle vibration damper is large because contact-type interference seal weares and teares, heating is fast, sealing and guider are mostly separation assembly and cause disalignment to be worn and torn, without bi-directional sealing capabilities, oil spill rate is high, internal leakage is large, packing grease consumption is fast, during seal low temperature, sclerosis makes piston rod movement noise become large and sealing wear becomes large, softening during seal high temperature, unstability, leakage of oil and leakage embellishing consistent lubricant, guider leaks and large cause hydraulic lost motion vibrations and cause travelling and out of controlly jeopardize traffic safety, in production, waste product is many, with low content of technology, befouling environment, consumption of natural resource is many, working life is short, temperature limit is narrow, the defect such as can not to reuse.
Summary of the invention
The object of this invention is to provide and a kind ofly collect sealing, be directed at one, without electromagnetism, chemical contamination, low in resources consumption, leak free, the metal magnetofluid guiding sealing device for motor vehicle damper that can reuse.
In order to achieve the above object, present invention employs following technological scheme;
Organization plan of the present invention comprises, 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 back-up ring (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 arranged on flange place, vibration damper fuel tank (14) inwall upper end, seals rod guide (1) lower end is spacing by the seal arrangement back-up ring (9) being arranged on vibration damper fuel tank (14) inboard wall groove, installs first sealing pole shoe (3) 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 first macromolecule soft magnetism guiding pole shoe (12) successively, guiding pole shoe isolating ring (13), rare earth guiding permanent magnet (11), second macromolecule soft magnetism guiding pole shoe (12), is provided with the multiple tooth seal ring of macromolecule permanent magnetism (8) between seals rod guide (1) outer round recessed and vibration damper fuel tank (14).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 magnetisms guiding pole shoe (12) are combined into sealing guide structure with piston lever of reducer (6), wherein all keep certain interval in sealing pole shoe (3) and between macromolecule soft magnetism guiding pole shoe (12) and piston lever of reducer (6), metal MHD is full of in gap, the multiple tooth seal ring of macromolecule permanent magnetism (8) and vibration damper fuel tank (14) inwall trace interference fit, metal MHD is full of at its between cog.On two sealing pole shoes (3), two macromolecule soft magnetism guiding pole shoe (12) inner cylindrical surfaces and the multiple tooth seal ring of macromolecule permanent magnetism (8) external cylindrical surface, be evenly distributed with four and four more than rectangle ring gears simultaneously.Described sealing pole shoe (3) employs high magnetic conduction iron based nano crystal material.Described metal MHD is nano metal magnetic fluid intellectual material.Described sealing pole shoe isolating ring (5) uses non-magnet_conductible material with guiding pole shoe isolating ring (13).Described seals rod guide (1) uses heat conduction and magnetic shielding and non-magnet_conductible material.The metal magnetofluid guiding sealing device for motor vehicle damper formed, be arranged on vibration damper fuel tank (14) upper end, in-60 DEG C ~ 200 DEG C temperature ranges, vibration damper fuel tank (14) inner high voltage and vacuum work medium are implemented that solid does not contact sealing, leads, lubricates, prevents internal high pressure oil, gas externally leaks, prevent inner occur instantaneously vacuum time exterior materials enter in fuel tank (14).The invention solves existing motor vehicle damper interference seal heating quick abrasion, the separation of sealing guiding, without bi-directional sealing capabilities, oil spill rate is high, high/low temperature operating noise large, guider leaks the large hydraulic lost motion that causes and jeopardizes the defects such as waste product is many, befouling environment, temperature limit are narrow, can not reuse in traffic safety, production.Its structure is simple, rubs while sassafras greatly reduces also greatly improve high and low temperature bi-directional sealing capabilities in slip.Guiding, seal arrangement are automotive oil, the critical component of atmospheric pressure formula vibration damper, the life-span directly determining vibration damper, inefficacy, leakage, pollution problem.
Control program of the present invention comprises, it is good to have employed in heat conduction, have in the endoporus of the seals rod guide of the non-magnet material of magnetic screen function (1) upper end and 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), forming closed magnetic path by the metal MHD injected in the multiple tooth structure of axis in sealing pole shoe (3) and the gap between piston lever of reducer (6) makes metal MHD seal pole shoe (1) and piston lever of reducer (6) gap location forms multipole continuous metal magnetic fluid sealing ring, to realize contactless clearance seal between to-and-fro motion machinery structure solid, this kinematic pair is lubricated simultaneously and heat transfer in seals rod guide (1), outer wall again through vibration damper fuel tank (14) distributes in moving air.Adopt wear-resisting, high temperature resistant, heat conduction, non-magnetic macromolecule guider cover (10) is as decompression and guiding basis, under rare earth guiding permanent magnet (11) effect, the metal MHD be positioned between macromolecule soft magnetism guiding pole shoe (12) and piston lever of reducer (6) forms some mucus state seal rings, and piston lever of reducer (6) surface is constantly lubricated, cooling, ultra micro polishing, make to be positioned at by narrow non-magnetic guiding pole shoe isolating ring (13), pressure gradient and apparent viscosity graded in metal MHD between lower two macromolecule soft magnetisms guiding pole shoe (12) produces under magnetic fields, the axle center that consequent magnetic pressure makes piston lever of reducer (6) be floated on seals rod guide (1) by magnetcisuspension with realize piston lever of reducer (6) and macromolecule soft magnetism lead pole shoe (12) and and macromolecule guider cover (10) between the reciprocating sealing of contactless and leading role.The high pressure system consisted of seals rod guide (1) and the internal high pressure damping oil of the small annular space of fuel tank (14) inwall to seals rod guide (1) below carries out the magnetic circuit formed with metal MHD and vibration damper fuel tank (14) inwall with the multiple tooth seal ring of macromolecule permanent magnetism (8) after damping is reduced pressure, make metal MHD tie the metal MHD seal ring tactile line being formed the static state of full coverage at the multiple tooth seal ring of macromolecule permanent magnetism (8) and vibration damper fuel tank (14) inwall, instead of nitrile butadiene rubber "O"-ring and solve it because of mold joint and install injured be directed at leakage.
Accompanying drawing explanation
Accompanying drawing metal magnetofluid guiding sealing device for motor vehicle damper structural drawing;
In 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 back-up ring (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
Below in conjunction with accompanying drawing, the present invention will be further described:
As shown in drawings in the motor vehicle damper using power free metal magnetofluid guiding sealing device for motor vehicle damper, its magnetic pressure characteristic of metal MHD seal ring be positioned between sealing pole shoe (3) and piston lever of reducer (6) has the ability repelling foreign matter, therefore, the rainwater on road, mud, small crushed stone can be prevented to be deposited on motor vehicle damper guiding-sealing device motion vice division chief, the normal operation circumstances of butyronitrile rubber oil seal, energy effective guarantee motor vehicle damper can be replaced.
Good owing to have employed in heat conduction, have in the endoporus of the seals rod guide of the non-magnet material of magnetic screen function (1) upper end and 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), forming closed magnetic path by the metal MHD injected in the multiple tooth structure of axis in sealing pole shoe (3) and the gap between piston lever of reducer (6) makes metal MHD seal pole shoe (1) and piston lever of reducer (6) gap location forms multipole continuous metal magnetic fluid sealing ring, to realize contactless clearance seal between to-and-fro motion machinery structure solid, this kinematic pair is lubricated simultaneously and heat transfer in seals rod guide (1), outer wall again through vibration damper fuel tank (14) distributes in moving air.
The high pressure system consisted of seals rod guide (1) and the internal high pressure damping oil of the small annular space of fuel tank (14) inwall to seals rod guide (1) below carries out the magnetic circuit formed with metal MHD and vibration damper fuel tank (14) inwall with the multiple tooth seal ring of macromolecule permanent magnetism (8) after damping is reduced pressure, make metal MHD tie the metal MHD seal ring touching and line is formed the static state of full coverage at the multiple tooth seal ring of macromolecule permanent magnetism (8) and vibration damper fuel tank (14) inwall, instead of nitrile butadiene rubber "O"-ring and solve because of mold joint and injured be directed at leakage is installed.
Adopt wear-resisting, high temperature resistant, heat conduction, non-magnetic macromolecule guider cover (10) is as decompression and guiding basis, under rare earth guiding permanent magnet (11) effect, the metal MHD be positioned between macromolecule soft magnetism guiding pole shoe (12) and piston lever of reducer (6) forms some mucus state seal rings, and piston lever of reducer (6) surface is constantly lubricated, cooling, ultra micro polishing, make to be positioned at by narrow non-magnetic guiding pole shoe isolating ring (13), pressure gradient and apparent viscosity graded in metal MHD between lower two macromolecule soft magnetisms guiding pole shoe (12) produces under magnetic fields, the axle center that consequent magnetic pressure makes piston lever of reducer (6) be floated on seals rod guide (1) by magnetcisuspension with realize piston lever of reducer (6) and macromolecule soft magnetism lead pole shoe (12) and 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 additional electronic control system, long service life, easy care, reusable, No leakage, pollution-free.Therefore, be low cost, the low energy consumption device of Passive Shape Control.
Claims (6)
1. a metal magnetofluid guiding sealing device for motor vehicle damper, comprises 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 back-up ring (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 arranged on flange place, vibration damper fuel tank (14) inwall upper end, seals rod guide (1) lower end is spacing by the seal arrangement back-up ring (9) being arranged on vibration damper fuel tank (14) inboard wall groove, installs first sealing pole shoe (3) 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 first macromolecule soft magnetism guiding pole shoe (12) successively, guiding pole shoe isolating ring (13), rare earth guiding permanent magnet (11), second macromolecule soft magnetism guiding pole shoe (12), the multiple tooth seal ring of macromolecule permanent magnetism (8) is installed between seals rod guide (1) outer round recessed and vibration damper fuel tank (14), simultaneously two sealing pole shoes (3), two macromolecule soft magnetism guiding pole shoe (12) inner cylindrical surfaces and the multiple tooth seal ring of macromolecule permanent magnetism (8) external cylindrical surface are evenly distributed with more than four and four rectangle ring gears.
2. metal magnetofluid guiding sealing device for motor vehicle damper according to claim 1, it is characterized in 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 magnetisms guiding pole shoe (12) are combined into sealing guide structure with piston lever of reducer (6), wherein all keep certain interval in sealing pole shoe (3) and between macromolecule soft magnetism guiding pole shoe (12) and piston lever of reducer (6), metal MHD is full of in gap, the multiple tooth seal ring of macromolecule permanent magnetism (8) and vibration damper fuel tank (14) inwall trace interference fit, metal MHD is full of at its between cog.
3. metal magnetofluid guiding sealing device for motor vehicle damper according to claim 1, is characterized in that: described sealing pole shoe (3) employs high magnetic conduction iron based nano crystal material.
4. metal magnetofluid guiding sealing device for motor vehicle damper according to claim 1, is characterized in that: described metal MHD is nano metal magnetic fluid intellectual material.
5. metal magnetofluid guiding sealing device for motor vehicle damper according to claim 1, is characterized in that: described sealing pole shoe isolating ring (5) uses non-magnet_conductible material with guiding pole shoe isolating ring (13).
6. metal magnetofluid guiding sealing device for motor vehicle damper according to claim 1, is characterized in that: described seals rod guide (1) uses heat conduction and magnetic shielding and non-magnet_conductible material.
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 |
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| Publication Number | Publication Date |
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| CN102954143A CN102954143A (en) | 2013-03-06 |
| CN102954143B true CN102954143B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110247738.4A Active CN102954143B (en) | 2011-08-26 | 2011-08-26 | Metal magnetofluid guiding sealing device for motor vehicle damper |
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Citations (6)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484732A (en) * | 1982-06-01 | 1984-11-27 | Gould Larry D | Constant and variable force tensioning devices utilizing atmospheric pressure |
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2011
- 2011-08-26 CN CN201110247738.4A patent/CN102954143B/en active Active
Patent Citations (6)
| 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 |
| 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 |
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| CN102954143A (en) | 2013-03-06 |
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