CN201027982Y - Novel sealing ring - Google Patents
Novel sealing ring Download PDFInfo
- Publication number
- CN201027982Y CN201027982Y CNU2007200838993U CN200720083899U CN201027982Y CN 201027982 Y CN201027982 Y CN 201027982Y CN U2007200838993 U CNU2007200838993 U CN U2007200838993U CN 200720083899 U CN200720083899 U CN 200720083899U CN 201027982 Y CN201027982 Y CN 201027982Y
- Authority
- CN
- China
- Prior art keywords
- ring
- lip limit
- sealing ring
- limit
- seal
- 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.)
- Expired - Fee Related
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model provides a novel sealing ring which is used for sealing between a mechanical fixing part and a rotation part. The utility model consists of a main sealing ring and an auxiliary sealing ring, wherein, the auxiliary sealing ring is embedded in the main sealing ring and is not only used as a pressing element on the lip of the main sealing ring, but also as a frame for the entire sealing ring and as an auxiliary sealing element, thereby three lip seals are formed to obviously improve the sealing effect, prolong the service life of the sealing ring, and the installation is easy.
Description
Technical field
The utility model relates to mechanical Sealing, is a kind of oil sealing specifically.Be used for the sealing between the rotating parts such as the standing part of machine and its.
Background technique
The sealing problem of various axial workpieces is perplexing machine building industry always, although all kinds of Sealing emerges in an endless stream, does not fundamentally solve the leakage problem of machine (as various oil pumps and speed reducer etc.) yet.Main cause is that common oil sealing has only a sealing lip limit, because the rubber as seal ring is aging easily, in case break or wear and tear in this sealing lip limit, just causes oil seal failure, because common oil sealing is made press member with spring, can not guarantee to support long-term effectively the sealing lip edge work in addition.
The model utility content
Problem to be solved in the utility model is because seal ring lip limit is damaged and the leakage that spring failure caused of exerting pressure.Concrete technological scheme is: a kind of novel seal circle, to form by primary seal circle and auxilliary seal ring, and the primary seal circle is embedded with auxilliary seal ring, both the decided press member on seal ring master lip limit of auxilliary seal ring, make the skeleton of whole seal ring again, also have one lip limit to make auxiliary seal, constitute the sealing of three lip limits.Main seal action is played on main lip limit, and the epipharynx limit is used for retaining oil, the outer lip limit is used for dust-break.When main lip limit may wear to a certain degree, main seal action is played on the outer lip limit.
Its primary seal circle is provided with main lip limit and epipharynx limit, and the epipharynx limit is in the inboard on main lip limit, and is less for the ease of the force rate of installing and it is acted on sealed, is difficult for being worn, and do not have skeleton to support.Be provided with the preceding groove of sealing between main lip limit and the epipharynx limit.
Described auxilliary seal ring is made by special plastic, is provided with the outer lip limit and the ring of exerting pressure, and its outer lip is the face contact, increases the service life to increase area of contact.Exert pressure the ring cross section for circular; The interior ring root of auxilliary seal ring also has circular groove one, makes its inner ring softness, is convenient to install.
Auxilliary close circle outer shroud is embedded on the outer shroud of main seal ring, and the main lip limit of primary seal circle is embedded on the ring of exerting pressure of auxilliary seal ring.The main lip limit of main and auxiliary seal ring and outer lip limit are in conjunction with constituting the sealing pit.
The beneficial effects of the utility model are: lip limit, three roads sealing effect is obvious, and auxilliary seal ring adopts special plastic to make long service life; The epipharynx limit does not have skeleton easy for installation.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model cross section enlarged view.
Embodiment
As depicted in figs. 1 and 2, both the decided press member on main lip limit 3 of seal ring 1 of the auxilliary seal ring 2 of a kind of novel seal circle utilization is made whole seal ring skeleton again, also makes secondary seal, and seals with three lip limits of employing.Main seal action is played on main lip limit, and the epipharynx limit is used for retaining oil, and the outer lip limit is used for dust-break.Main lip limit may wear to certain the time, and outer lip plays main seal action.
As shown in Figure 2, a kind of primary seal circle of novel seal circle 1 is made by rubber, and its main lip limit 3 is embedded on the ring 6 of exerting pressure of auxilliary seal ring.Selecting the rubber seal ring of deciding for use, is in order to utilize the superior elasticity of rubber.
As shown in Figure 2, a kind of auxilliary seal ring of novel seal circle 2 is made by special plastic, and its outer lip limit 5 and the ring 6 of exerting pressure all are its constituent elements, and the cross section of the ring 6 of exerting pressure is for circular.Selecting for use special plastic to make auxilliary seal ring, is in order to utilize good corrosion resistance of special plastic and ageing resistance.Adopting the ring of exerting pressure of circular cross-section is in order to utilize its good mechanical property.
The epipharynx limit 4 of primary seal circle 1 does not have skeleton to support in the inboard on main lip limit 3.Utilize it to do the sealing of first road on the one hand.Supporting without skeleton is for the ease of installing.In addition, do not have skeleton to support it, the force rate that it acts on sealed is less, is difficult for being worn.
Outer lip limit 5 is in the outside on main lip limit 3, and its lip limit is the face contact.The outer lip limit is when initial the use, and it is used for dust-break.After main lip limit may wear to a certain degree, it played main seal action.Its lip limit employing face contact is in order to increase its area of contact, to prolong its working life.
The outer shroud of auxilliary seal ring 2 is embedded on the outer shroud of primary seal circle 1, has the gap between auxilliary seal ring 2 and the primary seal circle 1.This gap is for the ease of assembling and installs.
The interior ring root of auxilliary seal ring 2 has circular groove 7 one.Its effect is to make its inner ring softness, is convenient to install.
As shown in the figure, a kind of novel seal circle has 2 road labyrinth seal grooves, and they are preceding groove 8 and pit 9.Its effect is identical with common labyrinth seal.
Claims (4)
1. novel seal circle comprises the primary seal circle of rubber body it is characterized in that being embedded with auxilliary seal ring at the primary seal circle total three seals lip limit.
2. a kind of novel seal circle according to claim 1 is characterized in that the primary seal circle establishes main lip limit and epipharynx limit, and the epipharynx limit is in the inboard on main lip limit; Establish the preceding groove of sealing between main lip limit and the epipharynx limit.
3. a kind of novel seal circle according to claim 1 is characterized in that described auxilliary seal ring is made of plastics, and is provided with the outer lip limit and the ring of exerting pressure, and ring root also has circular groove one in it.
4. a kind of novel seal circle according to claim 1 is characterized in that auxilliary seal ring outer shroud is embedded on the outer shroud of primary seal circle, and the main lip limit of primary seal circle is embedded on the ring of exerting pressure of auxilliary seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200838993U CN201027982Y (en) | 2007-03-26 | 2007-03-26 | Novel sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200838993U CN201027982Y (en) | 2007-03-26 | 2007-03-26 | Novel sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027982Y true CN201027982Y (en) | 2008-02-27 |
Family
ID=39132193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200838993U Expired - Fee Related CN201027982Y (en) | 2007-03-26 | 2007-03-26 | Novel sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027982Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727772A (en) * | 2015-03-13 | 2015-06-24 | 美钻能源科技(上海)有限公司 | Nonmetal sealing device with metal shell |
-
2007
- 2007-03-26 CN CNU2007200838993U patent/CN201027982Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727772A (en) * | 2015-03-13 | 2015-06-24 | 美钻能源科技(上海)有限公司 | Nonmetal sealing device with metal shell |
| CN104727772B (en) * | 2015-03-13 | 2017-08-29 | 美钻能源科技(上海)有限公司 | A kind of nonmetallic sealing device with metal shell |
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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: 20080227 |