CN2818933Y - Teflon labiate sealed ring of rotation axis - Google Patents
Teflon labiate sealed ring of rotation axis Download PDFInfo
- Publication number
- CN2818933Y CN2818933Y CNU2005201063038U CN200520106303U CN2818933Y CN 2818933 Y CN2818933 Y CN 2818933Y CN U2005201063038 U CNU2005201063038 U CN U2005201063038U CN 200520106303 U CN200520106303 U CN 200520106303U CN 2818933 Y CN2818933 Y CN 2818933Y
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- Prior art keywords
- oil sealing
- teflon
- rubber
- lip
- sealing lip
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- Expired - Fee Related
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Abstract
The utility model discloses a sealing device which comprises a polytetrafluoroethylene oil sealing lip, externally coated rubber and a dust-proof lip, wherein the externally coated rubber comprises an outer frame and a rubber coating layer coated on the frame, and the dust-proof lip is bonded on the rubber coating layer on the outer end surface of the externally coated rubber and is appressed with a rotating shaft; a part of the polytetrafluoroethylene oil sealing lip is bonded on a rubber coating layer inside the externally coated rubber or the outer frame. The sealing ring also comprises an inner frame which is fixed on the upper surface of the oil sealing lip in a bonding way and is provided with a positioning flanging. The dust-proof lip is made of polytetrafluoroethylene, or rubber, or non-woven fabrics. The utility model is formed from the simultaneous bonding of the inner frame, the oil sealing lip and the outer frame of the externally coated rubber, and has the fixing effect of the flanging of the sealing oil lip, and the angle of the circular arc of the oil sealing lip can be effectively improved; thus, the elasticity of the oil sealing lip can be improved, the ideal oil sealing effect can be achieved, the cost and the fraction defective of assembly can be reduced, and the static seal performance of the sealing ring can be effectively improved.
Description
Technical field
The utility model relates to a kind of seal arrangement, and a kind of teflon rotary shaft lip seal with good oil sealing effect and dustproof effect particularly is provided.
Background technique
Utilize filling-modified polytetrafluoroethylene (PTFE) material to make the rotary-type seal ring that oil sealing lip sheet instead of rubber material is made, has lot of advantages, as temperature tolerance good (100～+ 260 ℃), ageing-resistant, wear-resisting, friction ractor is low, at the bottom of the anti-various oil, corrosion-resistant, rate of fault or the like, but traditional a few class teflon rotary shaft lip seals (being commonly called as oil sealing) are in the structure collocation and on the lip machining process its shortcoming is arranged respectively all, specifically describe as follows:
First kind, the dust excluder lips of the oil sealing lip collocation polytetrafluoroethylene (PTFE) of turning spirality oil sealing wire casing, rubber, nonwovens material, doing location rolling pressing with inside and outside skeleton forms, the shortcoming of this structure collocation is: outer skeleton closes inner frame and belongs to absolute construction, and the rolling pressing forms the interior leakage phenomenon that can cause seal ring self like this;
Second kind, dust excluder lips, the iron and steel oil sealing base of the oil sealing lip collocation rubber material of the spiral oil sealing wire casing of turning, the shortcoming of this structure collocation is: though it is bonding to have adopted oil sealing lip sheet to close the iron and steel seat, prevented the interior leakage phenomenon of seal ring self, but because it can only limit on the position that is used in part engine crankshaft Rear oil seal, the dust excluder lips that adds him has adopted the rubber material again, so can not prevent that the broken end of clutch from closing external impurities and entering into oil sealing lip sheet place, cause oil sealing lip sheet to damage, cause leakage of oil;
The third, the oil sealing lip collocation nonwovens dust excluder lips of the circular oil sealing wire casing of mold pressing, iron and steel skeleton (or the aluminium oil sealing base of arranging in pairs or groups again), the shortcoming of this structure collocation is: its oil sealing lip sheet has adopted press moulding mode, and the lip sheet has adopted lowest gear and simple formulation (adding glass fibre in the polyflon), the too soft nothing of lip sheet is held power tightly, the oil return wire casing of lip sheet is a die pressing type oil return poor effect, so its application surface is narrow, it is little to be confined to the cylinder chamber internal pressure, uses on the little part petrol engine of axle centre deviation.
In sum, all kinds of teflon rotary shaft lip seal of the prior art, its oil sealing lip sheet adopts turning spirality oil sealing wire casing, but not bonding, leak phenomenon in having, if it has adopted the bonding and oil return wire casing of oil sealing lip sheet of oil sealing lip sheet and rubber, it is again the mold pressing circle, it or not the face contact, so the pumping function poor effect, because no good oil return effect, so the oil sealing poor effect, have dustproof poor effect, adhesive effect and the flange location of iron and steel oil sealing base unreasonable, using scope also has narrow limitation.
The model utility content
Main purpose of the present utility model is to overcome deficiency of the prior art, and a kind of teflon lip-type packing that has good oil sealing effect, dustproof effect and remarkable position suitability simultaneously is provided.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of new-type teflon rotary shaft lip seal comprises teflon oil sealing lip sheet, outpacking rubber, dust excluder lips, and wherein this outpacking rubber comprises outer skeleton and coating rubber adhesive thereon; It focuses on:
This dust excluder lips is adhered on the rubber adhesive on the outpacking rubber exterior edge face, and is adjacent to running shaft; The part of this teflon oil sealing lip sheet is adhered on the rubber adhesive or outer skeleton of the inside in the outpacking rubber.
The sealing circle more includes inner frame, and it is adhesively fixed on above the oil sealing lip sheet, and has the location flange.
This dust excluder lips is that teflon or rubber or nonwovens material are made.
The oil sealing section of this oil sealing lip sheet and the one side of running shaft driving fit are provided with turning spirality oil sealing wire casing.
Described teflon rotary shaft lip seal is integrally formed on the oil sealing base.
Described teflon and inner frame are bonding, and this inner frame is fixed on the oil sealing base again.
Described oil sealing base is aluminium material seat or iron and steel material quality seat.
Owing to adopted teflon simultaneously in the model utility, rubber, three kinds of materials of nonwovens are done dust excluder lips, to dust, the demanding nonwovens of selecting for use of impurity, polytetrafluoroethylmaterial material, can effectively prevent dust like this, impurity enters into oil sealing lip place, oil sealing lip sheet is caused damage, the inner frame of arranging in pairs or groups simultaneously, outer skeleton three bonding the forming of while of inner frame and oil sealing lip sheet and outpacking rubber, play oil sealing lip sheet flange fixation, can effectively improve the arc angle of oil sealing lip sheet, thereby strengthen the elasticity of oil sealing lip sheet, reach desirable oil sealing effect, collocation aluminium and ferrous materials oil sealing base, can reduce cost and assemble reject ratio, effectively improve seal ring static seal performance.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is the utility model embodiment one a user mode broken section structural representation;
Fig. 2 is the utility model embodiment two a user mode broken section structural representation;
Fig. 3 is the utility model embodiment three a user mode broken section structural representation;
Fig. 4 is the utility model embodiment four a user mode broken section structural representation;
Fig. 5 is the utility model embodiment five a user mode broken section structural representation;
Fig. 6 is the utility model embodiment six a user mode broken section structural representation;
Fig. 7 is the utility model embodiment seven a user mode broken section structural representation;
Fig. 8 is the utility model embodiment eight a user mode broken section structural representation;
Fig. 9 is the utility model embodiment nine a user mode broken section structural representation;
Figure 10 is the utility model embodiment ten a user mode broken section structural representation;
Figure 11 is the utility model embodiment 11 a user mode broken section structural representation;
Figure 12 is the utility model embodiment 12 a user mode broken section structural representation.
Embodiment
Embodiment one
As shown in Figure 1, the described teflon lip-type packing of present embodiment comprises teflon oil sealing lip sheet 3, outpacking rubber 6, and inner frame 2 and nonwovens dust excluder lips 4, wherein:
This outpacking rubber 6 comprises outer skeleton 1 and coating rubber adhesive 6 thereon.This rubber adhesive 6 is used for the static seal (this is known technology, will not be burdensome) of whole poly-tetrafluoro lip-type packing and packing holder.
This nonwovens dust excluder lips 4 is adhered on the rubber adhesive on outpacking rubber 6 exterior edge faces, and is adjacent to running shaft 5.
The part of this teflon oil sealing lip sheet 3 is adhered on the rubber adhesive of the inside in the outpacking rubber 6, has avoided inside and outside skeleton combination and leaks phenomenon of the failure in the oil sealing self that causes.
This inner frame 2 is adhesively fixed on above the oil sealing lip sheet by collocation, has fixedly flange effect, can improve and control the elasticity at oil sealing lip sheet bending circular arc place 9.
Moreover, on the one side of the oil sealing section 8 of this teflon oil sealing lip sheet 3 and running shaft 5 driving fits, be provided with turning spirality oil sealing wire casing 7, this kind structure is when guaranteeing oil sealing section 8 good oil return own, oil sealing effect, also can effectively adjust the elasticity at oil sealing section 8 and circular arc position 9 and hold power tightly, further improve oil return, the oil sealing effect of whole teflon oil sealing lip sheet 3.
Embodiment two
As shown in Figure 2, the polytetrafluoroethylmaterial material dust excluder lips 4 of the described teflon lip-type packing of present embodiment is adhered on the rubber adhesive of outpacking rubber 6 exterior edge faces and is adjacent to running shaft 5.This structure can prevent effectively that dust, impurity, the broken end of automobile clutch from entering self wear resistance that has further improved dust excluder lips on the basis of oil sealing lip section, prolonged its working life.Other structure beneficial effects and the embodiment one of present embodiment are identical, and this does not give unnecessary details.
Embodiment three
As shown in Figure 3, the rubber material dust excluder lips of the described teflon lip-type packing of present embodiment, natural molding sulfuration is on outpacking rubber 6 exterior edge faces and be adjacent to running shaft 5.The general use of this structure pushes away toward oil sealing lip place from dust excluder lips at running shaft, be under the dustproof requirement condition of nothing, to use in the usage requirement, characteristics are to be easy to assembling, can prevent dust excluder lips because to be running shaft pack into and to its damage, further improved the whole oil sealing effect of oil sealing from dust excluder lips.Other structures of present embodiment, beneficial effect and embodiment one are identical, and this does not give unnecessary details.
Embodiment four
As shown in Figure 4, the teflon oil sealing lip sheet 3 and the outpacking rubber 6 of the described teflon lip-type packing of present embodiment bond together, no inner frame 2, dust excluder lips 4 has adopted the nonwovens material, compared with prior art this structure combines various advantages equally and has stopped to leak in the oil sealing phenomenon of the failure, the circular arc position 9 of its bending simultaneously is because no inner frame supports, and the power of holding tightly reduces.This kind structure optimum uses in some small sizes and rotational speed than under the service condition faster, so more can embody the various characteristics of teflon.Other structures of present embodiment, beneficial effect and embodiment one are identical, and this does not give unnecessary details.
Embodiment five
As shown in Figure 5, the teflon oil sealing lip sheet 3 and the outpacking rubber 6 of the described teflon lip-type packing of present embodiment bond together, no inner frame 2, dust excluder lips 4 has adopted the teflon material, compared with prior art this structure combines the various processing advantages of Fig. 4 equally, and dust excluder lips 4 has adopted the wear resistance of the favourable raising dust excluder lips 4 of teflon material simultaneously.This kind structure optimum uses part outside to have the position that dust, impurity, various broken end may enter, can be effectively, use for a long time; Effectively prevent various impurity intrusion dust excluder lips and damage oil sealing lip sheet.Other structures of present embodiment, beneficial effect and embodiment one, example four are identical, and this does not give unnecessary details.
Embodiment six
The teflon oil sealing lip sheet 3 of the described teflon lip-type packing of present embodiment bonds together with outpacking rubber 6 as shown in Figure 6, no inner frame 2, dust excluder lips 4 has adopted the rubber material, compared with prior art this structure combines the various advantages of Fig. 4 equally, under the prerequisite that guarantees the non-internal leakage phenomenon of the failure, adopted rubber material dust excluder lips 4, this kind structure is mainly used in some mechanical seals, because its dust excluder lips is easy to install, avoided the installation accident that causes owing to dust excluder lips 4 materials are unreasonable to oil sealing lip sheet 3.Other structure of present embodiment, beneficial effect and embodiment one, example four are identical, and this does not give unnecessary details.
Embodiment seven, eight, nine, ten
Shown in Fig. 7,8,9,10, the oil sealing lip sheet 3 of these four described teflon lip-type packings of embodiment is bonded on the outer skeleton 1 naturally, inner frame branch (inner frame and no inner frame are arranged) dual mode.Dust excluder lips sheet 4 has adopted (nonwovens material and rubber material) two kinds of patterns, and the oil return wire casing of oil sealing lip sheet has also adopted (molding type and turning formula) two kinds of patterns.Be integrally formed at above the aluminium material seat (or iron and steel material quality seat) 10, the shape of aluminium material seat (or iron and steel material quality seat) can design according to user's installation requirement.These four kinds of structures can effectively prevent the installation process the planeness of lip-type packing dress tiltedly, oil sealing lip sheet damages, improved the working life of lip-type packing greatly and reduced rate of fault.Other structures of present embodiment, beneficial effect are identical with embodiment one, two, four, six, and this does not give unnecessary details.
Embodiment 11,12
Shown in Figure 11,12, the oil sealing lip sheet 3 usefulness rubber of these two described teflon lip-type packings of embodiment are sticking naturally to be pressed with above the iron and steel oil sealing base 10, and Figure 11 inner frame 2 is fixed on top (Figure 12 does not establish inner frame) of oil sealing lip sheet 3.Dust excluder lips sheet 4 has adopted nonwoven cloth material, compares with original technology, and the bending degree and the elasticity that can effectively control oil sealing lip sheet arc section 9 of inner frame 2 (structure Figure 11) is arranged.Dust excluder lips 4 has adopted nonwovens promptly to strengthen gas permeability can prevent that again the broken end of clutch, impurity dust from entering into oil sealing lip sheet 7 places (causing for oil sealing lip sheet and axle surface damages so that cause lip-type packing quality failures and working life) and having improved the working life of lip-type packing greatly and reduced rate of fault, more can satisfy the use of different user and various Environmental Conditions.
The utility model teflon rotary shaft lip seal, mainly improved the structure of oil sealing lip sheet, adopt directly bonding method of turning spirality oil sealing wire casing and rubber, again according to Environmental Conditions needs in addition inner frame and the outer direct cemented in place oil sealing of the skeleton lip sheet of outpacking rubber, and dust excluder lips adopts teflon, rubber, three kinds of materials of nonwovens are come matched combined, wherein do dust excluder lips with teflon and nonwovens material, can be widely used in the engine crankshaft rear end and (do the bent axle Rear oil seal with effectively preventing dust, broken end of clutch and introduced contaminants enter oil sealing lip sheet place), be widely used in transmitter crankshaft front end and automobile gearbox with rubber material dust excluder lips, vehicle bridge, difference is stated fields such as device and mechanical seal, the characteristic and the bonding interior leakage phenomenon that prevents oil sealing of rubber of teflon oil sealing lip sheet have been given full play to, use defective and narrow limitation have been avoided in the conversion of dust excluder lips material, and inner frame is made the rationality of bonding location, the oil sealing base that is equipped with aluminium or iron and steel material quality in addition forms integrated type not only economy but also practicality, remedy shortcoming between them mutually, the performance advantage makes the oil sealing effect reach very good degree.
Shown in the above implementation and accompanying drawing; be the preferable several embodiments of the utility model; yet; be not to limit to the utility model with this; approximate, identical person such as structure every and of the present utility model, device, feature all should belong to of the present utility model founding within the scope of counting purpose and patent protection.
Claims (7)
1, a kind of teflon rotary shaft lip seal comprises teflon oil sealing lip sheet, outpacking rubber, dust excluder lips, and wherein this outpacking rubber comprises outer skeleton and coating rubber adhesive thereon; It is characterized in that:
This dust excluder lips is adhered on the rubber adhesive on the outpacking rubber exterior edge face, and is adjacent to running shaft; The part of this teflon oil sealing lip sheet is adhered on the rubber adhesive or outer skeleton of the inside in the outpacking rubber.
2, a kind of teflon rotary shaft lip seal as claimed in claim 1, it is characterized in that: the sealing circle more includes inner frame, and it is adhesively fixed on above the oil sealing lip sheet, and has the location flange.
3, a kind of teflon rotary shaft lip seal as claimed in claim 1 or 2 is characterized in that: this dust excluder lips is that teflon or rubber or nonwovens material are made.
4, a kind of teflon rotary shaft lip seal as claimed in claim 1 or 2 is characterized in that: the oil sealing section of this oil sealing lip sheet and the one side of running shaft driving fit are provided with turning spirality oil sealing wire casing.
5, a kind of teflon rotary shaft lip seal as claimed in claim 1, it is characterized in that: described teflon rotary shaft lip seal is integrally formed on the oil sealing base.
6, a kind of teflon rotary shaft lip seal as claimed in claim 2, it is characterized in that: described teflon and inner frame are bonding, and this inner frame is fixed on the oil sealing base again.
7, as claim 5 or 6 described a kind of teflon rotary shaft lip seals, it is characterized in that: described oil sealing base is aluminium material seat or iron and steel material quality seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201063038U CN2818933Y (en) | 2005-08-24 | 2005-08-24 | Teflon labiate sealed ring of rotation axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201063038U CN2818933Y (en) | 2005-08-24 | 2005-08-24 | Teflon labiate sealed ring of rotation axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2818933Y true CN2818933Y (en) | 2006-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201063038U Expired - Fee Related CN2818933Y (en) | 2005-08-24 | 2005-08-24 | Teflon labiate sealed ring of rotation axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2818933Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956828A (en) * | 2010-06-08 | 2011-01-26 | 昆山鼎硕电子科技有限公司 | Wear-resistant oil seal |
| CN102442019A (en) * | 2010-09-10 | 2012-05-09 | Bha控股公司 | Breathable sealing gasket |
| CN103090008A (en) * | 2013-01-25 | 2013-05-08 | 徐利阳 | Rotary seal lip type seal ring assembly for rotating shaft |
| CN103502707A (en) * | 2011-08-03 | 2014-01-08 | 科德宝两合公司 | Seal |
| CN101981335B (en) * | 2008-03-28 | 2014-06-25 | 纳博特斯克株式会社 | Device with seals |
| CN106090230A (en) * | 2016-08-29 | 2016-11-09 | 四川华德精工制造有限公司 | A kind of multi-sealed polytetrafluoroethyloil oil seals |
| CN107882997A (en) * | 2017-11-30 | 2018-04-06 | 浙江吉利新能源商用车有限公司 | A kind of engine oil seal |
| CN108486743A (en) * | 2018-06-01 | 2018-09-04 | 山东日发纺织机械有限公司 | A kind of beating-up shaft of water-jet loom water proof ring |
| CN108799499A (en) * | 2017-04-27 | 2018-11-13 | 卡尔·弗罗伊登伯格公司 | sealing device |
| CN111442088A (en) * | 2020-05-14 | 2020-07-24 | 昆山健博密封件科技有限公司 | Combined polytetrafluoroethylene oil seal |
| CN112412652A (en) * | 2020-10-15 | 2021-02-26 | 青岛宇远新材料有限公司 | Semi-solid cast aluminum oil seal seat |
-
2005
- 2005-08-24 CN CNU2005201063038U patent/CN2818933Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101981335B (en) * | 2008-03-28 | 2014-06-25 | 纳博特斯克株式会社 | Device with seals |
| CN101956828A (en) * | 2010-06-08 | 2011-01-26 | 昆山鼎硕电子科技有限公司 | Wear-resistant oil seal |
| CN102442019A (en) * | 2010-09-10 | 2012-05-09 | Bha控股公司 | Breathable sealing gasket |
| CN103502707A (en) * | 2011-08-03 | 2014-01-08 | 科德宝两合公司 | Seal |
| CN103090008A (en) * | 2013-01-25 | 2013-05-08 | 徐利阳 | Rotary seal lip type seal ring assembly for rotating shaft |
| CN106090230A (en) * | 2016-08-29 | 2016-11-09 | 四川华德精工制造有限公司 | A kind of multi-sealed polytetrafluoroethyloil oil seals |
| CN108799499A (en) * | 2017-04-27 | 2018-11-13 | 卡尔·弗罗伊登伯格公司 | sealing device |
| US11131386B2 (en) | 2017-04-27 | 2021-09-28 | Carl Freudenberg Kg | Seal |
| CN107882997A (en) * | 2017-11-30 | 2018-04-06 | 浙江吉利新能源商用车有限公司 | A kind of engine oil seal |
| CN107882997B (en) * | 2017-11-30 | 2024-01-19 | 浙江吉利新能源商用车有限公司 | Engine oil seal |
| CN108486743A (en) * | 2018-06-01 | 2018-09-04 | 山东日发纺织机械有限公司 | A kind of beating-up shaft of water-jet loom water proof ring |
| CN108486743B (en) * | 2018-06-01 | 2024-04-12 | 山东日发纺织机械有限公司 | Water-proof ring of beating-up shaft of water-jet loom |
| CN111442088A (en) * | 2020-05-14 | 2020-07-24 | 昆山健博密封件科技有限公司 | Combined polytetrafluoroethylene oil seal |
| CN112412652A (en) * | 2020-10-15 | 2021-02-26 | 青岛宇远新材料有限公司 | Semi-solid cast aluminum oil seal seat |
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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: 20060920 Termination date: 20100824 |