CN202280787U - 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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- CN202280787U CN202280787U CN2011203145625U CN201120314562U CN202280787U CN 202280787 U CN202280787 U CN 202280787U CN 2011203145625 U CN2011203145625 U CN 2011203145625U CN 201120314562 U CN201120314562 U CN 201120314562U CN 202280787 U CN202280787 U CN 202280787U
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- pole shoe
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Abstract
The utility model discloses a metal magnetofluid guiding sealing device for a motor vehicle damper, which comprises the following components: a sealing guiding seat, a spacing ring, sealing pole shoes, a rare-earth sealing permanent magnet, a sealing pole shoe isolating ring, a damper piston rod, a sealing collar, a high-polymer permanent-magnet multi-tooth sealing ring, a sealing device retainer ring, a high-polymer guider sleeve, a rare-earth guiding permanent magnet, high-polymer soft-magnetic guiding pole shoes, a guiding pole shoe isolating ring and a damper oil-storage cylinder. Two sets of sealing pole shoes and two sets of high-polymer soft-magnetic guiding pole shoes are respectively separated from the damper piston rod for a certain gap. An inner cylindrical surface of each pole shoe is uniformly provided with four rectangular tooth rings. The high-polymer soft-magnetic guiding pole shoes are equipped on an outer circular groove of the sealing guiding seat. The metal magnetofluid guiding sealing device for the motor vehicle damper settles the following defects in the prior-art guiding sealing member for the motor vehicle damper: high heating speed, no bidirectional sealing capability, high oil leakage rate, high low-temperature, large noise, large inner leakage, environment pollution, incapability of being recycled, etc. The metal magnetofluid guiding sealing device for the motor vehicle damper further has the following advantages: simple structure, greatly reduced sliding friction, and improved bidirectional sealing capability at high temperature and low temperature.
Description
Technical field
The utility model belongs to the automotive component field, and the nothing that is used for automotive oil, atmospheric pressure vibration damper is leaked guiding, sealing control, i.e. motor vehicle damper metallic magnetic direct fluid seal arrangement.
Background technique
The conventional motor vehicle vibration damper is big because of contact-type interference sealing wear at present, heating is fast; Sealing and guider mostly for separation assembly cause disalignment wearing and tearing, unparalleled to sealability, oil spill rate is high, internal leakage is big, packing grease consumption is fast, sclerosis makes the piston rod movement noise become big and sealing wear becomes big during seal low temperature; Softening during seal high temperature, unstability, leakage of oil and leak lubricating grease, guider leak big cause the hydraulic lost motion vibrations cause going out of controlly jeopardize traffic safety, produce in many, with low content of technology, the befouling environment of waste product, defective such as consumption of natural resource is many, working life is short, temperature limit is narrow, can not reuse.
Summary of the invention
The purpose of the utility model provide a kind ofly collect sealing, be directed at one, no electromagnetism, chemical contamination, low in resources consumption, leak free, the motor vehicle damper metallic magnetic direct fluid seal arrangement that can reuse.
In order to achieve the above object, the utility model has adopted following technological scheme;
The utility model 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); 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 back-up ring (9) that is installed in vibration damper fuel tank (14) inboard wall groove place; First sealing pole shoe (3), limited ring (2), sealing pole shoe isolating ring (5), rare earth sealing permanent magnet (4), second sealing pole shoe (3), sealing collar (7) are installed in the endoporus of seals rod guide (1) upper end successively; 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), guiding pole shoe isolating ring (13), rare earth guiding permanent magnet (11), second macromolecule soft magnetism guiding pole shoe (12) successively; 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, on two sealing pole shoes (3), two macromolecule soft magnetisms lead pole shoe (12) inner cylindrical surface and the multiple tooth seal ring of macromolecule permanent magnetism (8) external cylindrical surface, is evenly distributed with four and four above rectangle ring gears simultaneously.It is characterized in that said 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; 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.The motor vehicle damper metallic magnetic direct fluid seal arrangement of being formed; 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 not contact seal of solid, guiding, lubricate, prevent internal high pressure oil, gas to external leaks, prevent inside occur moment during vacuum exterior materials get in the vibration damper fuel tank (14).The utility model solved 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 big, guider leak big cause hydraulic lost motion jeopardize traffic safety, produce in many, the befouling environment of waste product, temperature limit narrow, defective such as can not reuse.It is simple in structure, rubs in slip and also improves high and low temperature two way sealed ability greatly when sassafras significantly 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.
The utility model controlling schemes comprises; Adopted sealing pole shoe (3) that non-magnetic limited ring (2), high permeability material have been installed, rare earth sealing permanent magnet (4), non-magnetic sealing pole shoe isolating ring (5) in the endoporus of heat conduction seals rod guide (1) good, that the non-magnet material of magnetic shielding function is arranged upper end, constituted closed magnetic path through 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) and make the metallic magnetic fluid form multipole continuous metal magnet fluid sealing circle sealing pole shoe (1) and piston lever of reducer (6) gap location; With realize to contactless clearance seal between to-and-fro motion mechanical structure solid, simultaneously to this kinematic pair be lubricated with transmission of heat to seals rod guide (1) on, 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) as decompression and guiding basis; Metallic magnetic fluid being positioned between macromolecule soft magnetism guiding pole shoe (12) and the piston lever of reducer (6) under rare earth guiding permanent magnet (11) effect forms some mucus attitude seal rings; And to piston lever of reducer (6) surface constantly be lubricated, the polishing of cooling, ultra micro; Through narrow non-magnetic guiding pole shoe isolating ring (13) the metallic magnetic fluid that is positioned between upper and lower two macromolecule soft magnetisms guiding pole shoes (12) is produced press under the action of a magnetic field gradient and apparent viscosity graded, consequent magnetic pressure make piston lever of reducer (6) floats on seals rod guide (1) by magnetcisuspension axle center lead with realization piston lever of reducer (6) and macromolecule soft magnetism that pole shoe (12) reaches and macromolecule guider cover (10) between reciprocating sealing of contactless and leading role.High pressure system through seals rod guide (1) and the small annular space of fuel tank (14) inwall are formed the internal high pressure damping oil of seals rod guide (1) below is carried out the magnetic circuit that damping decompression back constitutes with the multiple tooth seal ring of macromolecule permanent magnetism (8) and metallic magnetic fluid and vibration damper fuel tank (14) inwall; Make the metallic magnetic fluid touch the metallic magnetic fluid-tight circle that forms the static state of full coverage on the line, replaced nitrile butadiene rubber " O " type circle and solved it because of mold joint and the injured leakage that is directed at is installed at the multiple tooth seal ring of macromolecule permanent magnetism (8) and vibration damper fuel tank (14) inwall knot.
Description of drawings
Accompanying drawing motor vehicle damper metallic magnetic direct fluid sealing device structure figure;
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 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 utility model is further specified:
Be shown in the motor vehicle damper that uses power free motor vehicle damper metallic magnetic direct fluid seal arrangement like accompanying drawing; Its magnetic pressure characteristic of metallic magnetic fluid-tight circle 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 is deposited on motor vehicle damper pilot seal device motion vice division chief, can replace the nitrile butadiene rubber oil seal, can effectively ensure the normal operation circumstances of motor vehicle damper.
Owing to adopted sealing pole shoe (3) that non-magnetic limited ring (2), high permeability material iron based nano crystal have been installed, rare earth sealing permanent magnet (4), non-magnetic sealing pole shoe isolating ring (5) in the endoporus of heat conduction seals rod guide (1) good, that the non-magnet material of magnetic shielding function is arranged upper end, constituted closed magnetic path through 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) and make the metallic magnetic fluid form multipole continuous metal magnet fluid sealing circle sealing pole shoe (1) and piston lever of reducer (6) gap location; With realize to contactless clearance seal between to-and-fro motion mechanical structure solid, simultaneously to this kinematic pair be lubricated with transmission of heat to seals rod guide (1) on, the outer wall through vibration damper fuel tank (14) distributes in moving air again.
High pressure system through seals rod guide (1) and the small annular space of fuel tank (14) inwall are formed the internal high pressure damping oil of seals rod guide (1) below is carried out the magnetic circuit that damping decompression back constitutes with the multiple tooth seal ring of macromolecule permanent magnetism (8) and metallic magnetic fluid and vibration damper fuel tank (14) inwall; Make the metallic magnetic fluid touch the metallic magnetic fluid-tight circle that forms the static state of full coverage on the line, replaced nitrile butadiene rubber " O " type circle and solved because of mold joint and the injured leakage that is directed at is installed at the multiple tooth seal ring of macromolecule permanent magnetism (8) and vibration damper fuel tank (14) inwall knot.
Adopt wear-resisting, high temperature resistant, heat conduction, non-magnetic macromolecule guider cover (10) as decompression and guiding basis; Metallic magnetic fluid being positioned between macromolecule soft magnetism guiding pole shoe (12) and the piston lever of reducer (6) under rare earth guiding permanent magnet (11) effect forms some mucus attitude seal rings; And to piston lever of reducer (6) surface constantly be lubricated, the polishing of cooling, ultra micro; Through narrow non-magnetic guiding pole shoe isolating ring (13) the metallic magnetic fluid that is positioned between upper and lower two macromolecule soft magnetisms guiding pole shoes (12) is produced press under the action of a magnetic field gradient and apparent viscosity graded, consequent magnetic pressure make piston lever of reducer (6) floats on seals rod guide (1) by magnetcisuspension axle center lead with realization piston lever of reducer (6) and macromolecule soft magnetism that pole shoe (12) reaches and macromolecule guider cover (10) between reciprocating sealing of contactless and leading role.
Utilize the motor vehicle damper metallic magnetic direct fluid seal arrangement of high technology nano metal magnetic fluid intellectual material as sealing medium, its control procedure need not 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. motor vehicle damper metallic magnetic direct fluid seal arrangement; 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 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 installed in 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) that is installed in vibration damper fuel tank (14) inboard wall groove place; First sealing pole shoe (3), limited ring (2), sealing pole shoe isolating ring (5), rare earth sealing permanent magnet (4), second sealing pole shoe (3), sealing collar (7) are installed in the endoporus of seals rod guide (1) upper end successively; 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), guiding pole shoe isolating ring (13), rare earth guiding permanent magnet (11), second macromolecule soft magnetism guiding pole shoe (12) successively; 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, on two sealing pole shoes (3), two macromolecule soft magnetisms lead pole shoe (12) inner cylindrical surface and the multiple tooth seal ring of macromolecule permanent magnetism (8) external cylindrical surface, is evenly distributed with four and four above rectangle ring gears simultaneously.
2. motor vehicle damper metallic magnetic direct fluid seal arrangement according to claim 1; It is characterized in that said 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, 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 |
|---|---|---|---|
| CN2011203145625U CN202280787U (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 |
|---|---|---|---|
| CN2011203145625U CN202280787U (en) | 2011-08-26 | 2011-08-26 | Metal magnetofluid guiding sealing device for motor vehicle damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280787U true CN202280787U (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203145625U Expired - Fee Related CN202280787U (en) | 2011-08-26 | 2011-08-26 | Metal magnetofluid guiding sealing device for motor vehicle damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280787U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954143A (en) * | 2011-08-26 | 2013-03-06 | 张博隆 | Metal magnetic fluid guide seal device for motor vehicle dampers |
| CN104454991A (en) * | 2014-12-23 | 2015-03-25 | 江苏理工学院 | Self-induction magnetic bearing |
| CN109027250A (en) * | 2018-08-13 | 2018-12-18 | 广西科技大学 | A kind of magnetic fluid sealing structure of magnetic leakage free |
-
2011
- 2011-08-26 CN CN2011203145625U patent/CN202280787U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954143A (en) * | 2011-08-26 | 2013-03-06 | 张博隆 | Metal magnetic fluid guide seal device for motor vehicle dampers |
| CN102954143B (en) * | 2011-08-26 | 2016-03-23 | 张博隆 | Metal magnetofluid guiding sealing device for motor vehicle damper |
| CN104454991A (en) * | 2014-12-23 | 2015-03-25 | 江苏理工学院 | Self-induction magnetic bearing |
| CN109027250A (en) * | 2018-08-13 | 2018-12-18 | 广西科技大学 | A kind of magnetic fluid sealing structure of magnetic leakage free |
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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: 20120620 Termination date: 20160826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |