CN106321845A - Automotive rotating oil seal having leakage storing and pumping-back functions - Google Patents
Automotive rotating oil seal having leakage storing and pumping-back functions Download PDFInfo
- Publication number
- CN106321845A CN106321845A CN201610983511.9A CN201610983511A CN106321845A CN 106321845 A CN106321845 A CN 106321845A CN 201610983511 A CN201610983511 A CN 201610983511A CN 106321845 A CN106321845 A CN 106321845A
- Authority
- CN
- China
- Prior art keywords
- oil seal
- seal body
- automobile
- used rotary
- rotary oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
Abstract
The invention relates to an automotive rotating oil seal having leakage storing and pumping-back functions. The automotive rotating oil seal comprises a hollow cylindrical inner oil seal body provided with an outwards-extending outer end face at the upper end and an outer oil seal body located on the outer side of the inner oil seal body and is characterized in that an upwards or downwards bent main seal body in contact with the outer oil seal body is bonded below the outwards-extending outer end face of the upper end of the inner oil seal body, a leakage storage cavity is formed in a sealed space defined by the main seal body, the inner oil seal body and the outer oil seal body, and a one-head or multi-head spiral oil return groove is formed in the main seal body.
Description
Technical field
The present invention relates to a kind of automobile-used rotary oil seal, particularly relate to a kind of automobile-used rotation oil that there is storage leakage and return pumping function
Envelope, belongs to oil seal technique field.
Background technology
The applying working condition very severe of oil sealing in automobile-used rotary oil seal, particularly high-power Diesel engine, generally should
The main axis jerking of class electromotor is relatively large with setting-up eccentricity, and the linear velocity of main shaft is the highest, owing to high-power starts
Machine is mainly used in commercial car and engineering machinery, and it uses external environment condition quite severe, causes electromotor seal failure accounting
The highest.
Along with the development of industry, the most ripe and innovation, government's environmental pollution aspect in addition of auto manufacturing
Requirement constantly promote, force constantly update rotating speed efficient towards low row, high, long-life direction of electromotor manufacture to be sent out
Exhibition, proposes higher performance requirement to engine sealing, such as: low friction, long-life (>=100 ten thousand kilometers or lifelong nothing
Change), adapt to high speed rotating, to adapt to the most severe use environment, temperature resistant range wider etc..
Therefore, it is possible to meet the engine rotation oil sealing required under the new situation possessed the most wide market demand.Existing
The automobile-used rotary oil seal having, the sealing means mainly taked in structure design has radial seal and axial seal two kinds, wherein
Radial seal mode still plays leading position in rotary oil seal seals, and its design feature is primary seal lip and the rotation of oil sealing
The contact of engine spindle body, oil seal lip sealing force assists essentially from material interference design and miscellaneous part and provides (such as bullet
Spring etc.) to hold tightly on rotation main shaft, sealing force is radially to be applied to by electromotor cavity direction rotate on main shaft.Radial seal
The ability with axial float of beating of the resistance to rotary shaft being characterized in product of mode collides with each other, it is common that the resistance to ability of beating is strong
The most resistance to play ability will weaken, and vice versa, owing to long high temperature and oil immersion environment make encapsulant that aging leading to occur
Cause sealing force and decline formation inefficacy, simultaneously because the sealing force that long term high temperature makes spring provide also can decay causes product failure.
The ability of common radially hermetic oil seal tolerance machine oil carbonization is the most weak, it is impossible to meet what current commercial car main flow company proposed
" length is changed oil " requirement.Based on this, improve rotary oil seal resistance to beat, resistance to play ability；Improve the service life of rotary oil seal；Improve
The rotary oil seal adaptation ability to external environment condition；The demand of the aspects such as the rotation torque of reduction rotary oil seal, becomes heavy-duty engine
The inexorable trend that machine rotary oil seal improves.
Summary of the invention
The present invention is directed to present on existing automobile-used rotary oil seal Structure adaptation complex working conditions not enough, it is provided that a kind of tool
There is storage leakage and return the automobile-used rotary oil seal of pumping function.
The technical scheme is that
A kind of automobile-used rotary oil seal having storage leakage and returning pumping function, including in hollow cylinder and upper end has to extension
Stretch the inner oil seal body of outer face and be positioned at the outer oil seal body of the external side of inner oil seal, it is characterised in that described inner oil seal body upper end
The stretch out lower section of outer face is bonded with bending up or down and the primary seal body contacted with outer oil seal body, and described master is close
Forming storage leakage chamber in Feng Ti, inner oil seal body and the sealing space of outer oil seal body composition, described primary seal body is provided with single head or many
Head spiral oil-recovery tank.
The invention has the beneficial effects as follows:
1) movable sealing passage is positioned at different radius, and is designed with storage leakage chamber between passage, can effectively prevent
Leakage；
2) changing to seal near hole by common close sealing by primary seal, sealing force is mainly rotated by inner oil seal produces
Raw centrifugal force provides, and can effectively prevent the seal failure that sealing force decay causes；
3) the primary seal position of inner oil seal is designed with oil-recovery tank, and in seal process, primary seal lip is by common static shape
State pump oil improves into the dynamic pump oil that lip rotates with the axis, and dynamic oil-recovery tank possesses higher scavenge oil pump energy-absorbing power.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described outer oil seal body connects outer rubber body near a stomidium of inner oil seal body, and the top of outer rubber body sets
Have and upwardly extend and outward-dipping oil-collecting lip.
Use above-mentioned further scheme to provide the benefit that, can effectively prevent getting rid of the fluid spattered and fly out.
Further, the top of described outer rubber body is additionally provided with and upwardly extends and intilted rubber lip, described outer rubber
The lower section of body is bonded with the dust excluder lips contacted with inner oil seal body.
Using above-mentioned further technical scheme to provide the benefit that, the region between rubber lip and dust excluder lips can effectively buffer
The entrance of external dust and affect sealing.
Further, described dust excluder lips is provided with single head or multi-head spiral oil-recovery tank.
Use above-mentioned further technical scheme to provide the benefit that, increase and seal together, make up primary seal issuable
Lost efficacy.
Further, interior rubber bodies also it is bonded with between described inner oil seal body and primary seal.
Use above-mentioned further technical scheme to provide the benefit that, the initial sealing power at primary seal position can be increased.
Further, described dust excluder lips is made up of non-woven fabrics or PTFE, and described primary seal is made up of PTFE.
Accompanying drawing explanation
Fig. 1 is the installation site schematic diagram of automobile-used rotary oil seal；
Fig. 2 is the structural representation of the automobile-used rotary oil seal of embodiment 1；
Fig. 3 is the structural representation of the automobile-used rotary oil seal of embodiment 2；
Fig. 4 is the structural representation of the automobile-used rotary oil seal of embodiment 3.
In Fig. 2～4,1, inner oil seal body；2, outer oil seal body；3, primary seal body；4, interior rubber bodies；5, outer rubber body；6, storage
Leakage chamber；7, oil-collecting lip；8, rubber lip；9, dust excluder lips；10, spiral oil-recovery tank
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with example, example is served only for explaining the present invention, and
Non-for limiting the scope of the present invention.
Embodiment 1:
As in figure 2 it is shown, a kind of automobile-used rotary oil seal that there is storage leakage and return pumping function, including in hollow cylinder and upper end
There is the inner oil seal body 1 of the outer face that stretches out and be positioned at the outer oil seal body 2 of the external side of inner oil seal, inner oil seal body upper end outside
The lower section extending outer face is bonded with interior rubber bodies 4, and the lower section of interior rubber bodies is bonded with and is bent downwardly and connects with outer oil seal body
The primary seal body 3 touched, forms storage leakage chamber 6, outer oil seal body in primary seal body, inner oil seal body and the sealing space of outer oil seal body composition
A stomidium near inner oil seal body connects outer rubber body 5, and the top of outer rubber body is provided with and upwardly extends and outward-dipping oil-collecting
Lip 7 and upwardly extending and intilted rubber lip 8, the lower section of outer rubber body is bonded with the dust excluder lips contacted with inner oil seal body
9, dust excluder lips and primary seal body are equipped with single head or multi-head spiral oil-recovery tank 10.
Embodiment 2:
As it is shown on figure 3, a kind of automobile-used rotary oil seal that there is storage leakage and return pumping function, including in hollow cylinder and upper end
There is the inner oil seal body 1 of the outer face that stretches out and be positioned at the outer oil seal body 2 of the external side of inner oil seal, inner oil seal body upper end outside
The lower section extending outer face is bonded with the primary seal body 3 being bent downwardly and contacting with outer oil seal body, primary seal body, inner oil seal body
Leaking chamber 6 with forming storage in the sealing space of outer oil seal body composition, outer oil seal body connects outer rubber near a stomidium of inner oil seal body
Body 5, the top of outer rubber body is provided with and upwardly extends and outward-dipping oil-collecting lip 7 and upwardly extending and intilted rubber lip
8, the lower section of outer rubber body is bonded with the dust excluder lips 9 contacted with inner oil seal body, and primary seal body is provided with single head or multi-head spiral
Oil-recovery tank 10.
Embodiment 3:
As shown in Figure 4, a kind of automobile-used rotary oil seal having storage leakage and returning pumping function, including in hollow cylinder and upper end
There is the inner oil seal body 1 of the outer face that stretches out and be positioned at the outer oil seal body 2 of the external side of inner oil seal, inner oil seal body upper end outside
The lower section extending outer face is bonded with interior rubber bodies 4, and the lower section of interior rubber bodies is bonded with and is bent upwards and connects with outer oil seal body
The primary seal body 3 touched, forms storage leakage chamber 6, outer oil seal body in primary seal body, inner oil seal body and the sealing space of outer oil seal body composition
A stomidium near inner oil seal body connects outer rubber body 5, and the top of outer rubber body is provided with and upwardly extends and outward-dipping oil-collecting
Lip 7 and upwardly extending and intilted rubber lip 8, the lower section of outer rubber body is bonded with the dust excluder lips contacted with inner oil seal body
9, dust excluder lips and primary seal body are equipped with single head or multi-head spiral oil-recovery tank 10.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (9)
1. there is storage leakage and return an automobile-used rotary oil seal for pumping function, including in hollow cylinder and upper end has and stretches out
The inner oil seal body of outer face and be positioned at the outer oil seal body of the external side of inner oil seal, it is characterised in that described inner oil seal body upper end to
The lower section of outer extension outer face is bonded with bending up or down and the primary seal body contacted with outer oil seal body, described primary seal
Forming storage leakage chamber in body, inner oil seal body and the sealing space of outer oil seal body composition, described primary seal body is provided with single head or bull
Spiral oil-recovery tank.
Automobile-used rotary oil seal the most according to claim 1, it is characterised in that described outer oil seal body is near the one of inner oil seal body
Stomidium connects outer rubber body.
Automobile-used rotary oil seal the most according to claim 2, it is characterised in that the top of described outer rubber body is provided with upwards prolongs
Stretch and outward-dipping oil-collecting lip.
Automobile-used rotary oil seal the most according to claim 3, it is characterised in that the top of described outer rubber body is additionally provided with upwards
Extend and intilted rubber lip.
Automobile-used rotary oil seal the most according to claim 4, it is characterised in that the lower section of described outer rubber body is bonded with interior
The dust excluder lips that oil seal body contacts.
Automobile-used rotary oil seal the most according to claim 4, it is characterised in that described dust excluder lips is provided with single head or bull spiral shell
Cycle oil groove.
Automobile-used rotary oil seal the most according to claim 6, it is characterised in that described dust excluder lips is by non-woven fabrics or PTFE system
Become.
8. according to the automobile-used rotary oil seal according to any one of claim 1-4, it is characterised in that described inner oil seal body is close with main
Interior rubber bodies also it is bonded with between envelope.
9. according to the automobile-used rotary oil seal according to any one of claim 1-4, it is characterised in that described primary seal is by PTFE system
Become.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610983511.9A CN106321845B (en) | 2016-11-09 | 2016-11-09 | Vehicle rotary oil seal with leakage storage and pump return functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610983511.9A CN106321845B (en) | 2016-11-09 | 2016-11-09 | Vehicle rotary oil seal with leakage storage and pump return functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106321845A true CN106321845A (en) | 2017-01-11 |
| CN106321845B CN106321845B (en) | 2021-04-30 |
Family
ID=57816928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610983511.9A Active CN106321845B (en) | 2016-11-09 | 2016-11-09 | Vehicle rotary oil seal with leakage storage and pump return functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321845B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869487A (en) * | 2017-12-01 | 2019-06-11 | 卡尔·弗罗伊登伯格公司 | Sealing ring and sealing device arragement construction with such sealing ring |
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|---|---|---|---|---|
| JP2003049854A (en) * | 2001-08-03 | 2003-02-21 | Koyo Seiko Co Ltd | Hermetically sealed device |
| EP0866249B1 (en) * | 1997-03-18 | 2003-09-17 | SKF INDUSTRIE S.p.A. | A multiple contact seal assembly for mechanical members coupled for relative rotation |
| CN2702129Y (en) * | 2004-06-17 | 2005-05-25 | 陈乙强 | Carbon fiber reinforcement polytetrafluoroethylene film coating oil seal |
| JP2005337345A (en) * | 2004-05-26 | 2005-12-08 | Nok Corp | Sealing device with pulsar ring |
| JP2007064459A (en) * | 2005-09-02 | 2007-03-15 | Nok Corp | Sealing device |
| JP2011069458A (en) * | 2009-09-28 | 2011-04-07 | Ntn Corp | Bearing device for wheel |
| US20130243359A1 (en) * | 2012-03-16 | 2013-09-19 | Jtekt Corporation | Sealing device and rolling bearing unit |
| CN206190905U (en) * | 2016-11-09 | 2017-05-24 | 烟台润蚨祥油封有限公司 | Automobile -used rotating oil seal with it reaches back pumping function to store up to leak |
-
2016
- 2016-11-09 CN CN201610983511.9A patent/CN106321845B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0866249B1 (en) * | 1997-03-18 | 2003-09-17 | SKF INDUSTRIE S.p.A. | A multiple contact seal assembly for mechanical members coupled for relative rotation |
| JP2003049854A (en) * | 2001-08-03 | 2003-02-21 | Koyo Seiko Co Ltd | Hermetically sealed device |
| JP2005337345A (en) * | 2004-05-26 | 2005-12-08 | Nok Corp | Sealing device with pulsar ring |
| CN2702129Y (en) * | 2004-06-17 | 2005-05-25 | 陈乙强 | Carbon fiber reinforcement polytetrafluoroethylene film coating oil seal |
| JP2007064459A (en) * | 2005-09-02 | 2007-03-15 | Nok Corp | Sealing device |
| JP2011069458A (en) * | 2009-09-28 | 2011-04-07 | Ntn Corp | Bearing device for wheel |
| US20130243359A1 (en) * | 2012-03-16 | 2013-09-19 | Jtekt Corporation | Sealing device and rolling bearing unit |
| CN206190905U (en) * | 2016-11-09 | 2017-05-24 | 烟台润蚨祥油封有限公司 | Automobile -used rotating oil seal with it reaches back pumping function to store up to leak |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869487A (en) * | 2017-12-01 | 2019-06-11 | 卡尔·弗罗伊登伯格公司 | Sealing ring and sealing device arragement construction with such sealing ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106321845B (en) | 2021-04-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A rotary oil seal for vehicles with leakage storage and pump return functions Effective date of registration: 20230315 Granted publication date: 20210430 Pledgee: China Construction Bank Corporation Laiyang Sub branch Pledgor: YANTAI RUNFUXIANG OIL SEAL Co.,Ltd. Registration number: Y2023980034910 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |