CN107869595A - A kind of sealing ring with outer step - Google Patents
A kind of sealing ring with outer step Download PDFInfo
- Publication number
- CN107869595A CN107869595A CN201711005338.6A CN201711005338A CN107869595A CN 107869595 A CN107869595 A CN 107869595A CN 201711005338 A CN201711005338 A CN 201711005338A CN 107869595 A CN107869595 A CN 107869595A
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- fluid
- hole
- 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- Withdrawn
Links
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
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
- F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
- F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
- F16J15/342—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities with means for feeding fluid directly to the face
-
- 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
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
-
- 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
- F16J15/54—Other sealings for rotating shafts
Landscapes
- 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 outer step, it is arranged at using fluid as working media, possesses on the one member of annular 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, sealing ring body and the opposing party's component contact；Sealing ring outer body carries step, and the step is caught in the side wall flange of non-tight fluid side around annular groove, and 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 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 outer 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 outer 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, sealing ring
Body and the opposing party's component contact；Characterized in that,
Sealing ring outer body carries step, and the side wall that the step is caught in non-tight fluid side around annular groove is convex
Edge, to seal fluid media (medium), by the pressure of step equilibrium sealed medium, sealing ring is set to be applied on the outside of sealed medium
The operating mode of high 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 outer 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, sealing ring sidepiece offers the step that length is F, step spacing Φ A4.
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 outer 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, sealing ring body and the opposing party's part
Contact；Characterized in that,
Sealing ring outer body carries step, and the step is caught in the side wall flange of non-tight fluid side around annular groove,
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 outer 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 |
|---|---|---|---|
| CN201711005338.6A CN107869595A (en) | 2017-10-25 | 2017-10-25 | A kind of sealing ring with outer step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711005338.6A CN107869595A (en) | 2017-10-25 | 2017-10-25 | A kind of sealing ring with outer step |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107869595A true CN107869595A (en) | 2018-04-03 |
Family
ID=61753275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711005338.6A Withdrawn CN107869595A (en) | 2017-10-25 | 2017-10-25 | A kind of sealing ring with outer step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107869595A (en) |
-
2017
- 2017-10-25 CN CN201711005338.6A patent/CN107869595A/en not_active Withdrawn
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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 |