CN107869590A - A kind of sealing ring with double step - Google Patents
A kind of sealing ring with double step Download PDFInfo
- Publication number
- CN107869590A CN107869590A CN201711005479.8A CN201711005479A CN107869590A CN 107869590 A CN107869590 A CN 107869590A CN 201711005479 A CN201711005479 A CN 201711005479A CN 107869590 A CN107869590 A CN 107869590A
- Authority
- CN
- China
- Prior art keywords
- fluid
- hole
- sealing ring
- annular groove
- tight fluid
- 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.)
- Withdrawn
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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
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of sealing ring with double step, is arranged at using fluid as working media, possesses on the one member of annular groove, and parts surface has axis hole, and rotating shaft is inserted through the axis hole and is connected with the opposing party's part；On the inside of sealing ring body and outside is respectively provided with ledge structure, wherein, the ledge structure of inner side is caught in the side wall flange of the opposing party's part, and the ledge structure in outside is caught in around annular groove in the flange of the side wall of non-tight fluid side；The runner for being internally provided with non-tight fluid of low-pressure side part；Sealing ring body surface opens up some axially extending bores；Described through hole one end and the flow passage for possessing the one member of annular groove, the other end connect with non-tight fluid side；When the spindle is rotated, the fluid of non-tight fluid side can enter the runner of sealed sides non-tight fluid by the through hole.The anchor ring of the present invention has through hole, can introduce fluid media (medium), can effectively reduce ring body temperature and thermograde.
Description
Technical field
The present invention relates to a kind of fluid machinery rotary shaft dynamic sealing device.
Background technology
For a long time, the rotary shaft of China's fluid machinery is developed slower with dynamic seal compared to other seals, with foreign countries
Gap is larger.Such seal is primarily present following several forms at present：Flat ring, platform ring, L-shaped section rings, band anti-rotation grooved ring, T
Tee section ring, rectangle grooved ring etc..As a kind of component for being used for solving dynamic sealing between rotary shaft and body, sealing ring relies primarily on
Elastic force caused by flexible member and the collective effect of pressure medium reach sealing effectiveness, by being bonded closed place so as to effectively hinder
Only medium is leaked from high-pressure side to low-pressure end.
Limited by material property, the working environment of sealing ring is no more than its heat-resistant limit.The rotating shaft of fluid machinery at present
Even if can not effectively solve problem from the good material of high temperature resistant and thermal conductivity with rotary packing ring.Because sealing ring was using
Cheng Zhonghui produces substantial amounts of frictional heat, and when lacking effective sinking path ring body constant temperature can raise, cause in sealing ring
Produce thermograde, phenomena such as causing the hot tearing of thermal deformation end face.For poor lubricity and volatile medium, it is also easy to liquid occur
The problems such as film vaporizes.
The content of the invention
The purpose of the present invention is to overcome above mentioned problem, proposes a kind of sealing ring with double step, and anchor ring has through hole,
Fluid media (medium) can be introduced, can effectively reduce ring body temperature and thermograde.
A kind of sealing ring with double step proposed by the invention, it is arranged at using fluid as working media, possesses annular
On the one member of groove, the parts surface has axis hole, and rotating shaft is inserted through the axis hole and is connected with the opposing party's part；Its feature
It is,
On the inside of sealing ring body and outside is respectively provided with ledge structure, wherein, the ledge structure positioned at inner side is caught in another
In the side wall flange of square part, the ledge structure positioned at outside is caught in the convex of the side wall of non-tight fluid side around annular groove
In edge；To seal fluid media (medium), by the pressure of step equilibrium sealed medium, sealing ring is set to be applied to sealed medium high
The operating mode of pressure；
The sealed sides for possessing the one member of annular groove are low-pressure side, and it is internally provided with the runner of non-tight fluid；
Sealing ring body opens up some axially extending bores；
Described through hole one end and the flow passage for possessing the one member of annular groove, the other end connect with non-tight fluid side
It is logical；When the spindle is rotated, it is non-close can to enter sealed sides by the through hole under pressure for the fluid of non-tight fluid side
Seal the runner of fluid.
In use, when the fluid that the cooling with certain pressure, lubrication or buffer action are full of in the through hole of sealing ring is situated between
During matter, the abrasive end face of sealing ring and inside can be lubricated and cooled down simultaneously, meanwhile, runner can isolate leakage and be situated between
Matter.Therefore, the present invention can effectively prevent the abrasive end face of sealing ring from producing dry friction, and sealing ring temperature rise and temperature is greatly reduced
Gradient.In addition, the perforate of ring body surface can also play a part of anti-rotation groove.
Further, on high-tension side non-tight fluid is introduced same for the ease of medium coolant seal ring, the through hole
Runner, the fluid flow into from a part of through hole, are flowed out from another part through hole, form circulation and are cooled, are avoided because of radiating
It is uneven to cause thermal deformation or hot tearing.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Diagram is closed, above-mentioned technical proposal is expanded on further.
A kind of sealing ring with double step as shown in Figure 1, the logical of N number of a diameter of Φ D is provided with the axial direction of sealing ring
Hole, wherein sealing ring external diameter are Φ A3, and internal diameter is Φ A1, and centre-to-centre spacing is Φ A2, and sealing ring thickness is E, and NX Φ D are N number of diameter
For Φ D through hole, the inner side and outside of sealing ring offer the step that length is H, F, interior step spacing Φ A4, outer step respectively
Spacing Φ A5.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (2)
1. a kind of sealing ring with double step, it is arranged at using fluid as working media, possesses on the one member of annular groove, institute
Stating parts surface has axis hole, and rotating shaft is inserted through the axis hole and is connected with the opposing party's part；Characterized in that,
On the inside of sealing ring body and outside is respectively provided with ledge structure, wherein, the ledge structure positioned at inner side is caught in the opposing party portion
In the side wall flange of part, the ledge structure positioned at outside is caught in the flange of the side wall of non-tight fluid side around annular groove
It is interior；
The sealed sides for possessing the one member of annular groove are low-pressure side, and it is internally provided with the runner of non-tight fluid；
Sealing ring body opens up some axially extending bores；
Described through hole one end and the flow passage for possessing the one member of annular groove, the other end connect with non-tight fluid side；When
During axis of rotation, the fluid of non-tight fluid side can enter the runner of sealed sides non-tight fluid by the through hole.
2. a kind of sealing ring with double step according to claim 1, it is characterised in that the through hole will be on high-tension side
Non-tight fluid introduces same runner, and the fluid flows into from a part of through hole, is flowed out from another part through hole, forms circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711005479.8A CN107869590A (en) | 2017-10-25 | 2017-10-25 | A kind of sealing ring with double step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711005479.8A CN107869590A (en) | 2017-10-25 | 2017-10-25 | A kind of sealing ring with double step |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107869590A true CN107869590A (en) | 2018-04-03 |
Family
ID=61753307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711005479.8A Withdrawn CN107869590A (en) | 2017-10-25 | 2017-10-25 | A kind of sealing ring with double step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107869590A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113062982A (en) * | 2021-04-29 | 2021-07-02 | 四川大学 | One-stage pressure reduction rotary dynamic sealing device |
-
2017
- 2017-10-25 CN CN201711005479.8A patent/CN107869590A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113062982A (en) * | 2021-04-29 | 2021-07-02 | 四川大学 | One-stage pressure reduction rotary dynamic sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180403 |
|
| WW01 | Invention patent application withdrawn after publication |