CN103968079A - Novel reciprocating-type dynamic sealing element - Google Patents
Novel reciprocating-type dynamic sealing element Download PDFInfo
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- CN103968079A CN103968079A CN201410216394.4A CN201410216394A CN103968079A CN 103968079 A CN103968079 A CN 103968079A CN 201410216394 A CN201410216394 A CN 201410216394A CN 103968079 A CN103968079 A CN 103968079A
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Abstract
The invention discloses a novel reciprocating-type dynamic sealing element which is made of compressible materials. The sealing element is of a ring-shaped structure. Two circles of saw teeth are arranged on the outer ring face of the sealing element and used for generating two sealing contact faces; a circle of transition groove is formed between the two circles of saw teeth. After the sealing element is installed, the circle of saw teeth close to the sealed mediums are front end saw teeth, the radial height of the front end saw teeth is smaller than that of the rear end saw teeth, a sealing face formed by the front end saw teeth is an auxiliary sealing face, and a sealing face formed by the rear end saw teeth is a main sealing face. The novel reciprocating-type dynamic sealing element can achieve better sealing performance in the reciprocating-movement dynamic sealing state, and therefore on the one hand, interface leakage caused when the sealing element makes reciprocating movement can be reduced, on the other hand, certain self-lubricating capacity is achieved, friction resistance and abrasion conditions caused when the sealing element works can be reduced. Therefore, the sealing performance of the sealing element is improved, and the service life of the sealing element is prolonged. The sealing element is simple and reliable in structure, low in production cost and good in universality.
Description
Technical field
The present invention relates to Seal Design field, be specially a kind of Novel reciprocating type dynamic seal.
Background technique
In industrial field, the machinery that contains seal arrangement as hydraulic equipment, the traffic tool, reactor etc., once leak, gently cause the energy and raw-material a large amount of waste, equipment cisco unity malfunction, heavy cause the major accident such as equipment scrapping, systemic breakdown and casualties to occur.Therefore the design of sealing, manufacture the great attention that existing problem has caused people.
In hydraulic transmission, pneumatic element and system, reciprocating movement sealing is a kind of modal sealing.And significance based on sealing requires also more and more higher to the sealability of reciprocating movement sealing part in industrial field.In reciprocating movement sealing, conventional Sealing has: O shape circle, Y shape circle, v shaped ring, U-shaped circle, flower bud shape circle, L (J) shape circle and some combined type packing rings.Current problem is that in this class seal ring, some is not suitable for high-voltage high-speed to-and-fro motion, as O shape circle, Y shape circle and L (J) shape circle etc., easily occurs the faults such as rapid wear or leakage under high-pressure situations; Some is not suitable for high speed to-and-fro motion, as v shaped ring, U-shaped circle, flower bud shape circle, under high-speed case, there will be friction excessive, caused quick-wearing, cause Sealing premature failure.Therefore it is significant to design a kind of reciprocating Sealing novel, good seal performance.
Summary of the invention
The object of the invention is: in order to obtain better sealability in reciprocating motive sealing, designed a kind of novel reciprocating dynamic seal.The seal can realize better sealability under reciprocating state.On the one hand, reveal at the interface occurring in the time of can reducing Sealing to-and-fro motion; On the other hand, there is certain selflubricating ability, can reduce Sealing and descend in working order surface friction drag and abrasion condition.And then improved the sealability of Sealing, extended the working life of Sealing.Simple and reliable for structure, good seal performance that the seal has, and there is the advantages such as selflubricating ability, can be widely used in industrial field.
Technological scheme of the present invention is:
Described a kind of Novel reciprocating type dynamic seal, is characterized in that: described Sealing adopts compressible material; Sealing is cast structural; On the outer ring face of Sealing, there are two circle saw shape teeth, for generation of two sealing contact surfaces; Between two circle saw shape teeth, it is a circle transition slot.
Further preferred version, described a kind of Novel reciprocating type dynamic seal, it is characterized in that: it is front end saw shape tooth that Sealing is sawed shape tooth near a circle of sealed medium after installing, the radial height of front end saw shape tooth is lower than rear end saw shape tooth, the sealing surface that front end saw shape tooth forms is auxiliary seal face, and the sealing surface that rear end saw shape tooth forms is primary sealing area.
Beneficial effect:
The invention has the beneficial effects as follows: the seal is simple in structure that good seal performance can be widely used in industrial field.The seal can realize better sealability under reciprocating motive sealing state, has two circle saw shape teeth and a circle transition slot on Sealing, and on the one hand, reveal at the interface occurring in the time of can reducing Sealing to-and-fro motion; On the other hand, there is certain selflubricating ability, can reduce Sealing and descend in working order surface friction drag and abrasion condition.And then improved the sealability of Sealing, extended the working life of Sealing.The seal is simple and reliable for structure, cost of production is low, has good versatility.
Accompanying drawing explanation
Fig. 1: axisymmetric figure of the present invention;
Fig. 2: the axisymmetric figure under working state of the present invention;
Fig. 3: stereogram of the present invention;
Fig. 4: front view of the present invention;
Fig. 5: side view of the present invention;
Wherein: A: dynamic seal; B: piston wall; C: flange groove; D: symmetry axis; 1: front end saw shape tooth; 2: rear end saw shape tooth; 3: transition slot.
Embodiment
Below in conjunction with specific embodiment, the present invention is described:
With reference to accompanying drawing 1, what the Sealing in the present embodiment connected for flange is sealed and matched.As shown in Figure 1, Sealing is cast structural, and symmetry axis direction is defined as to x direction, and the symmetry axis direction perpendicular to seal ring is defined as to y direction.
Sealing in the present embodiment adopts rubber material, and its sectional shape is as Fig. 1.The y axle postive direction of Sealing, be on the outer ring face of Sealing, to have two circles saw shape teeth, for generation of two sealing contact surfaces, i.e. front sealing surface and rear sealing surface, it is front sealing surface that Sealing is installed the rear sealing surface near sealed medium, and a corresponding circle saw shape tooth is that front end is sawed shape tooth.Other of Sealing three faces are plane structure.
The height of front end saw shape tooth is a little less than rear end saw shape tooth.After seal ring is compressed, front end saw shape tooth produces compression in a small amount, forms front sealing surface with piston wall.Front sealing surface has certain sealability, can realize the ability of auxiliary seal, is auxiliary seal face.
After front end saw shape tooth, it is transition slot.Because front sealing surface only has certain sealability, there is part sealed medium to enter transition slot through front sealing surface.On the one hand, sealed medium enters transition slot by front sealing surface, and its pressure can be reduced, and realizes the effect of auxiliary seal; On the other hand, the sealed medium in transition slot plays lubricated function simultaneously, can reduce Sealing and descend in working order surface friction drag and abrasion condition.
It after transition slot, is rear end saw shape tooth.After seal ring is compressed, rear end saw shape tooth produces a large amount of compressions, forms rear sealing surface with piston wall.Rear sealing surface has good sealability, and thoroughly the medium in sealing transition groove, can realize main sealing, is primary sealing area.
In Fig. 2, it is the zhou duicheng tuxing under working state of the present invention.Can find out, it has formed down two sealing surfaces and a transition slot in working order.
In Fig. 3, Fig. 4 and Fig. 5, it is the stereogram of Sealing of the present invention.Can find out, it is simple and reliable for structure, has good versatility.
Claims (2)
1. a Novel reciprocating type dynamic seal, is characterized in that: described Sealing adopts compressible material; Sealing is cast structural; On the outer ring face of Sealing, there are two circle saw shape teeth, for generation of two sealing contact surfaces; Between two circle saw shape teeth, it is a circle transition slot.
2. Novel reciprocating type dynamic seal according to claim 1, it is characterized in that: it is front end saw shape tooth that Sealing is sawed shape tooth near a circle of sealed medium after installing, the radial height of front end saw shape tooth is lower than rear end saw shape tooth, the sealing surface that front end saw shape tooth forms is auxiliary seal face, and the sealing surface that rear end saw shape tooth forms is primary sealing area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410216394.4A CN103968079B (en) | 2014-05-21 | 2014-05-21 | A kind of reciprocating dynamic seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410216394.4A CN103968079B (en) | 2014-05-21 | 2014-05-21 | A kind of reciprocating dynamic seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103968079A true CN103968079A (en) | 2014-08-06 |
| CN103968079B CN103968079B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410216394.4A Active CN103968079B (en) | 2014-05-21 | 2014-05-21 | A kind of reciprocating dynamic seal |
Country Status (1)
| Country | Link |
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| CN (1) | CN103968079B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637725A (en) * | 2015-03-03 | 2015-05-20 | 浙江华仪电器科技有限公司 | Insulating pull rod component and solid-sealed polar pole |
| CN106121860A (en) * | 2016-08-16 | 2016-11-16 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of movably ball face sealing device |
| CN107702867A (en) * | 2017-10-24 | 2018-02-16 | 中国地质大学（北京） | Micro-leakage test paper and preparation method thereof and method of testing, the sealing device with micro-leakage test function |
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| CN201992080U (en) * | 2011-03-23 | 2011-09-28 | 青岛开世密封工业有限公司 | Oil seal |
| CN202418582U (en) * | 2012-02-16 | 2012-09-05 | 李三济 | Rubber sealing ring |
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2014
- 2014-05-21 CN CN201410216394.4A patent/CN103968079B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1118255A (en) * | 1965-03-12 | 1968-06-26 | Westerasmaskiner Ab | Improved sealing device for the driven ground wheels of harvesters and the like |
| GB2143598A (en) * | 1983-07-21 | 1985-02-13 | Mtu Muenchen Gmbh | Separating particles from leakage gas flows |
| US4863292A (en) * | 1988-03-03 | 1989-09-05 | Fag Kugelfischer Georg Schafer (Kgaa) | Seal for antifriction bearings |
| US4976444A (en) * | 1989-08-21 | 1990-12-11 | Amoco Corporation | Seal and seal assembly |
| RU2023922C1 (en) * | 1992-03-23 | 1994-11-30 | Геннадий Иосифович Познянский | Hydraulic gasket seal for forward pair |
| CN2783055Y (en) * | 2005-02-06 | 2006-05-24 | 张绍翔 | Rotary oil seal with oil seal lip |
| CN101240852A (en) * | 2008-03-20 | 2008-08-13 | 陈军卫 | Multi-lip multi-spring self-lubricating oil seal |
| CN201373104Y (en) * | 2009-03-23 | 2009-12-30 | 淮北高罗输送装备有限公司 | Multilevel locking type shaft seal |
| CN201575270U (en) * | 2009-12-11 | 2010-09-08 | 安徽广德金鹏科技发展有限公司 | Seal ring for ribbed tube |
| CN201992080U (en) * | 2011-03-23 | 2011-09-28 | 青岛开世密封工业有限公司 | Oil seal |
| CN202418582U (en) * | 2012-02-16 | 2012-09-05 | 李三济 | Rubber sealing ring |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637725A (en) * | 2015-03-03 | 2015-05-20 | 浙江华仪电器科技有限公司 | Insulating pull rod component and solid-sealed polar pole |
| CN106121860A (en) * | 2016-08-16 | 2016-11-16 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of movably ball face sealing device |
| CN106121860B (en) * | 2016-08-16 | 2019-03-22 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of moveable ball face sealing device |
| CN107702867A (en) * | 2017-10-24 | 2018-02-16 | 中国地质大学（北京） | Micro-leakage test paper and preparation method thereof and method of testing, the sealing device with micro-leakage test function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103968079B (en) | 2016-10-05 |
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