CN107869596A - A kind of between outer land stepwise sealing ring with dynamic pressure groove - Google Patents
A kind of between outer land stepwise sealing ring with dynamic pressure groove Download PDFInfo
- Publication number
- CN107869596A CN107869596A CN201711005525.4A CN201711005525A CN107869596A CN 107869596 A CN107869596 A CN 107869596A CN 201711005525 A CN201711005525 A CN 201711005525A CN 107869596 A CN107869596 A CN 107869596A
- Authority
- CN
- China
- Prior art keywords
- annular groove
- fluid
- hole
- sealing ring
- tight
- 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- Withdrawn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 between outer land stepwise sealing ring with dynamic pressure groove, 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；Seal ring body and the opposing party's component contact, sealing ring outer body carries step, 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；The seal face of sealing ring body opens up annular groove, and ring body non-tight side opens up some axially extending bores, and the through hole connects with annular groove, and the seal face around annular groove opens up fluid dynamic pressure groove；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 between outer land stepwise sealing ring with dynamic pressure groove, anchor ring
With through hole, fluid media (medium) can be introduced, can effectively reduce ring body temperature and thermograde.
A kind of between outer land stepwise sealing ring with dynamic pressure groove proposed by the invention, be arranged at using fluid as working media,
Possess on the one member of annular groove, the parts surface has axis hole, and rotating shaft is inserted through the axis hole and connected with the opposing party's part
Connect；Seal ring body and the opposing party's component contact, it is characterised 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
It is interior, to seal fluid；Meanwhile the pressure of sealed medium is balanced by outer step, sealing ring is applied to sealed medium
The operating mode of outside 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；
The seal face of sealing ring body opens up annular groove, and ring body non-tight side opens up some axially extending bores, the through hole with
Annular groove connects, and the seal face around annular groove opens up fluid dynamic pressure groove；Annular groove, being capable of shape by coordinating with the flange of flow passage ends
Radially double seals structure；
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, the fluid of non-tight fluid side can enter the runner of sealed sides non-tight fluid by the through hole.
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 between outer land stepwise sealing ring with dynamic pressure groove as shown in Figure 1, it is provided with the axial direction of flat ring sealing ring N number of straight
Footpath is Φ D through hole, and wherein sealing ring external diameter is Φ A5, and internal diameter is Φ A1, and sealing ring thickness is E, and NX Φ D are N number of a diameter of
Φ D through hole, connects the annular groove that thickness is C above through hole, annular groove centre-to-centre spacing Φ A3, interior spacing Φ A2, olo Φ A4, outside ring
Side is provided with the step that length is F, step spacing Φ A6, and the seal face around annular groove opens up fluid dynamic pressure groove M, K.
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 between outer land stepwise sealing ring with dynamic pressure groove, a side of annular groove is arranged at using fluid as working media, possessed
On part, the parts surface has axis hole, and rotating shaft is inserted through the axis hole and is connected with the opposing party's part；Seal ring body with it is another
One member contacts, it is characterised 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；
The seal face of sealing ring body opens up annular groove, and ring body non-tight side opens up some axially extending bores, the through hole and annular groove
Connect, the seal face around annular groove opens up fluid dynamic pressure groove；
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 between outer land stepwise sealing ring with dynamic pressure groove according to claim 1, it is characterised in that the through hole will
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, shape
Into circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711005525.4A CN107869596A (en) | 2017-10-25 | 2017-10-25 | A kind of between outer land stepwise sealing ring with dynamic pressure groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711005525.4A CN107869596A (en) | 2017-10-25 | 2017-10-25 | A kind of between outer land stepwise sealing ring with dynamic pressure groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107869596A true CN107869596A (en) | 2018-04-03 |
Family
ID=61753285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711005525.4A Withdrawn CN107869596A (en) | 2017-10-25 | 2017-10-25 | A kind of between outer land stepwise sealing ring with dynamic pressure groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107869596A (en) |
-
2017
- 2017-10-25 CN CN201711005525.4A patent/CN107869596A/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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180403 |