CN107869593A - A kind of interior steps type seal ring with annular groove - Google Patents
A kind of interior steps type seal ring with annular groove Download PDFInfo
- Publication number
- CN107869593A CN107869593A CN201711005388.4A CN201711005388A CN107869593A CN 107869593 A CN107869593 A CN 107869593A CN 201711005388 A CN201711005388 A CN 201711005388A CN 107869593 A CN107869593 A CN 107869593A
- Authority
- CN
- China
- Prior art keywords
- annular groove
- hole
- fluid
- ring body
- 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.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000036760 body temperature Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
-
- 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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of interior steps type seal ring with annular 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；Sealing ring body contacts with the side wall of non-tight fluid side around annular groove, sealing ring body inner band has step, the step is caught in the side wall flange of the opposing party's part, 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；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 interior steps type seal ring with annular groove, anchor ring tool
There is through hole, fluid media (medium) can be introduced, can effectively reduce ring body temperature and thermograde.
A kind of interior steps type seal ring with annular groove proposed by the invention, it is arranged at using fluid as working media, tool
On the one member of standby 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 contacts with the side wall of non-tight fluid side around annular groove, it is characterised in that
Sealing ring body inner band has step, and the step is caught in the side wall flange of the opposing party's part, to seal
Fluid；Meanwhile by the pressure of step equilibrium sealed medium, sealing ring is set to be applied to the work of high pressure on the inside of sealed medium
Condition；
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 is smooth；Annular groove can form radial direction double end by coordinating with the flange of flow passage ends
Surface seal 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 scheme of mechanism 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 interior steps type seal ring with annular groove as shown in Figure 1, N number of diameter is provided with the axial direction of flat ring sealing ring
For Φ D through hole, 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, the annular groove that thickness is C, annular groove center spacing Φ A3, interior spacing Φ A2, olo Φ A4, in ring are connected above through hole
Inner side is provided with the step that length is F, step spacing Φ A6.
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 interior steps type seal ring with annular groove, a side portion 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 and annular
The side wall contact of non-tight fluid side around groove, it is characterised in that
Sealing ring body inner band has step, and the step is caught in the side wall flange of the opposing party's part,
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 is smooth；
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 interior steps type seal ring with annular groove according to claim 1, it is characterised in that the through hole is by height
The non-tight fluid of side is pressed to introduce same runner, the fluid flows into from a part of through hole, is flowed out from another part through hole, is formed
Circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711005388.4A CN107869593A (en) | 2017-10-25 | 2017-10-25 | A kind of interior steps type seal ring with annular groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711005388.4A CN107869593A (en) | 2017-10-25 | 2017-10-25 | A kind of interior steps type seal ring with annular groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107869593A true CN107869593A (en) | 2018-04-03 |
Family
ID=61753288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711005388.4A Pending CN107869593A (en) | 2017-10-25 | 2017-10-25 | A kind of interior steps type seal ring with annular groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107869593A (en) |
-
2017
- 2017-10-25 CN CN201711005388.4A patent/CN107869593A/en active Pending
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180403 |
|
| RJ01 | Rejection of invention patent application after publication |