SE454801B - GLIDRINGSTETNING - Google Patents
GLIDRINGSTETNINGInfo
- Publication number
- SE454801B SE454801B SE8303857A SE8303857A SE454801B SE 454801 B SE454801 B SE 454801B SE 8303857 A SE8303857 A SE 8303857A SE 8303857 A SE8303857 A SE 8303857A SE 454801 B SE454801 B SE 454801B
- Authority
- SE
- Sweden
- Prior art keywords
- rings
- bore
- shaft
- fit
- sliding ring
- Prior art date
Links
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 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
- F16J15/44—Free-space packings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Description
454 1301 ' 2 5 med elastiska och med presspassning i borrningen sittande skivor. 454 1301 '2 5 with elastic and with press fit in the bore seated discs.
I fig. l är rotorn eller axeln betecknad med 10. På axeln 10 är medelst en skruv ll påskruvad en kåpa 12. Kåpan 12 är tätad gentemot den schematiskt framställda statorn 13 vid ett ej visat ställe. Mellan den roterande kåpan 12 och statorn finns alltså en avtätad kammare 14. Axeln 10 sträc- ker sig genom statorn 13 i dennas borrning 15. Axeln 10 är avtätad mot borrningen 15 genom den med l allmänt beteckna- de glidringstätningen enligt uppfinningen. På ritningen lig- ger till höger om statorn 13 den sida A som skall tätas och vänster därom, i kammaren 14 den avtätade sidan B.In Fig. 1, the rotor or shaft is denoted by 10. On the shaft 10, a cover 12 is screwed on by means of a screw 11. The cover 12 is sealed against the schematically produced stator 13 at a place not shown. Between the rotating housing 12 and the stator there is thus a sealed chamber 14. The shaft 10 extends through the stator 13 in its bore 15. The shaft 10 is sealed against the bore 15 by the sliding ring seal according to the invention generally designated 1. In the drawing, to the right of the stator 13 is the side A to be sealed and to the left thereof, in the chamber 14 the sealed side B.
Naturligtvis kan l0 även vara en stationär axel, och 13 vara en rotor. Principen för glidringstätningen enligt upp- finningen ändras dock ej härígenom, varför i följande be- skrivning denna ekvivalenta lösning ej kommer att avhandlas.Of course, l0 can also be a stationary shaft, and 13 can be a rotor. However, the principle of the slip seal according to the invention does not change in this way, which is why in the following description this equivalent solution will not be discussed.
I På axeln 10 sitter med relativt tät passning på ett om- växlande sätt en ring 2 och en ring 3. Samtliga ringar 2 och 3 har samma innerradie rl, så att samtliga sitter på axeln 10 med presspassning. Ringarna 2 har en avsevärt mindre yt- fterradíe r2 än ringarna 3, vilkas ytterradie rs dock är mind- re än radien rls hos borrningen l5. För att en presspass- ning skall säkerställas mellan ringarna 2 och 3 och axeln 10, måste axeln ha övermått i förhållande till innerradien rl. Koncentriskt omkring ringarna 2 är anordnade ringar ü.I On the shaft 10, with a relatively tight fit, a ring 2 and a ring 3 sit alternately. All rings 2 and 3 have the same inner radius r1, so that all sit on the shaft 10 with a press fit. The rings 2 have a considerably smaller surface radius r2 than the rings 3, the outer radii of which, however, are smaller than the radius rls of the bore 15. In order to ensure a press fit between the rings 2 and 3 and the shaft 10, the shaft must be oversized in relation to the inner radius r1. Concentrically around the rings 2 are arranged rings ü.
Ringarna h har en ytterradie ra, vilken gentemot borrningens 15 radie rls har övermått, så att ringarna 4 sitter med press- passning i borrningen 15. Ringarnas 4 innerradie r3 är stör- re än ytterradíen rz hos de däri liggande ringarna 4. Genom detta arrangemang bildas omväxlande ringspalter 20 mellan ringarna 3 och borrningen 15, samt ringspalter 21 mellan ringarna 2 och å.The rings h have an outer radius ra, which has measured over the radius rls of the bore 15, so that the rings 4 sit with a press fit in the bore 15. The inner radius r3 of the rings 4 is larger than the outer radius rz of the rings 4 lying therein. By this arrangement alternating ring gaps 20 are formed between the rings 3 and the bore 15, as well as ring gaps 21 between the rings 2 and å.
Samtliga ringar kan som visas för ringen } i Fig. Å ha koncentriska ringspâr 32 i deras sidoflanker 31. Ringspåren 32 har en dubbel funktion. Dels minskar de storleken hos de mot varandra liggande friktionsytorna, dels bildar de ytter- ligare strypningsställen i glidringstätningen.All rings can, as shown for the ring} in Fig. Å, have concentric ring grooves 32 in their side flanks 31. The ring grooves 32 have a double function. On the one hand, they reduce the size of the friction surfaces facing each other, and on the other hand, they form additional throttling points in the slip ring seal.
I fig. 5 visas ett exempel vid vilket samtliga på axeln 10 sittande ringar är ursvarvade i ett stycke från en buss- ning 5. Härvid är bussningens 5 resp. flänsarnas 6 radie v:- A 3 454 B01 lika med ringarnas 3 ytterradie r5. Spårens 7 radie motsva- rar följaktlígen ringarnas 2 ytterradie rz. Axeln 10 har åter üvermått gentemot bussningens 5 innerradie. Ringarna 4 ligger i detta fall mellan flänsarna 6. Ringarna 4 ligger, liksom utförandet enligt fig. l, med presspassning i borr- ningen 15.Fig. 5 shows an example in which all the rings sitting on the shaft 10 are turned away in one piece from a bushing 5. In this case, the bushing 5 resp. the radius of the flanges 6: - A 3 454 B01 equal to the outer radius r5 of the rings 3. The radius of the grooves 7 consequently corresponds to the outer radius rz of the rings 2. The shaft 10 has again oversaturated with respect to the inner radius of the bushing 5. The rings 4 in this case lie between the flanges 6. The rings 4 lie, like the embodiment according to Fig. 1, with a press fit in the bore 15.
Ringarna 4 är diametralt delade, för att de skall kunna insättas i spåren 7.The rings 4 are diametrically divided, so that they can be inserted into the grooves 7.
Varianten enligt fig. 6 har ånyo en bussning 5, vilken sitter med presspassning på axeln 10. De med presspassning i borrningen 15 sittande ringarna 4 är emellertid i detta fall av elastiskt material, som erfordrar en ytterligare ut- åt riktad radiell kraft. Denna kraft åstadkommas genom spänn- ringar 8 som verkar på de elastiska ringarna 4. Såsom elas- tiskt material för ringarna 4 kan diverse plaster samt plast- asbestblandningar komma ifråga. Spännringarna 8 framställes företrädesvis av fjäderstål.The variant according to Fig. 6 again has a bushing 5, which sits with a press fit on the shaft 10. However, the rings 4 sitting with a press fit in the bore 15 are in this case of elastic material, which requires an additional outwardly directed radial force. This force is produced by tension rings 8 which act on the elastic rings 4. As elastic material for the rings 4, various plastics and plastic asbestos mixtures can be used. The clamping rings 8 are preferably made of spring steel.
Om mellan statorn 13 och den roterande kåpan 12, som visas i fig. l, finns en avtätad kammare 14, kan denna tryck- sättas via en tryckledning genom statorn 14. Företrädesvis använder man på den avtätade sidan B samma medium som anlig- ger mot den sida A som skall tätas. Därvid behöver mediet ej ovillkorligen anligga med samma aggregattillstånd mot båda sidorna.If there is a sealed chamber 14 between the stator 13 and the rotating housing 12, shown in Fig. 1, this can be pressurized via a pressure line through the stator 14. Preferably, on the sealed side B, the same medium as abutting against the side A to be sealed. In this case, the medium does not necessarily have to abut with the same unit condition against both sides.
Den beskrivna glidringstätningen har vid försök, sär- skilt vid pumpar för kryogena tillämpningsändamål, visat sig vara mycket tillförlitlig. Generellt kan glidringstätníngen enligt uppfinningen emellertid användas för alla hydrauliska rotationsmaskiner. Denna användning är emellertid ej exklu- siv. Som ett ytterligare användningsexempel kan endast om- nämnas användning av tätningen för en axel genom kåpan hos en autoklav.The described slip seal has proven to be very reliable in experiments, especially in pumps for cryogenic application purposes. In general, however, the sliding ring seal according to the invention can be used for all hydraulic rotary machines. However, this use is not exclusive. As a further example of use, only the use of the seal for a shaft through the housing of an autoclave can be mentioned.
Avslutningsvis uppräknas åter kort de väsentligaste fördelarna hos glídringstätningen enligt uppfinningen: l. Prisbillig framställning.Finally, the most important advantages of the slip seal according to the invention are briefly listed: l. Affordable manufacture.
Enkel montering.Easy installation.
Enkel utbytbarhet av tätningen.Easy replaceability of the seal.
Mycket låg nötning.Very low wear.
Förenklad konstruktion av axel och borrning resp.Simplified construction of shaft and bore resp.
U1J-\\Nf\7 rotor och stator.U1J - \\ Nf \ 7 rotor and stator.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH4158/82A CH659869A5 (en) | 1982-07-08 | 1982-07-08 | LABYRINTH SEAL. |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8303857D0 SE8303857D0 (en) | 1983-07-06 |
SE8303857L SE8303857L (en) | 1984-01-09 |
SE454801B true SE454801B (en) | 1988-05-30 |
Family
ID=4270884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8303857A SE454801B (en) | 1982-07-08 | 1983-07-06 | GLIDRINGSTETNING |
Country Status (6)
Country | Link |
---|---|
CH (1) | CH659869A5 (en) |
DE (1) | DE3321597C2 (en) |
FR (1) | FR2529988B1 (en) |
GB (1) | GB2123100B (en) |
IT (1) | IT1175100B (en) |
SE (1) | SE454801B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3542826A1 (en) * | 1985-12-04 | 1987-06-11 | Mtu Muenchen Gmbh | SHAFT SEALING DEVICE FOR TURBO MACHINES, ESPECIALLY GAS TURBINE ENGINES |
DE3708815C1 (en) * | 1987-03-18 | 1988-09-22 | Josef Fey | Double-disc labyrinth face seal |
GB8903585D0 (en) * | 1989-02-16 | 1989-04-05 | Kent Introl Ltd | Improvements relating to seals |
DE10062204A1 (en) * | 2000-12-13 | 2002-07-11 | Ksb Ag | shaft seal |
CN104033415B (en) * | 2014-06-10 | 2016-10-19 | 广东韶钢松山股份有限公司 | A kind of application of gas-blowing engine labyrinth seal structure |
DE102014221880A1 (en) * | 2014-10-28 | 2016-04-28 | Schaeffler Technologies AG & Co. KG | Rotor shaft of an exhaust gas turbocharger and method for producing the same |
DE102019121253A1 (en) * | 2019-08-06 | 2021-02-11 | Bayerische Motoren Werke Aktiengesellschaft | Use for an operating fluid container and operating fluid container |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE62564C (en) * | C. H. jaeger in Schkeuditz b. Leipzig | Laterally movable metal packing j with a double ring layer | ||
DE7148193U (en) * | 1973-06-28 | Voith J Gmbh | Device for contactless sealing of two components that can be rotated relative to one another | |
DE554053C (en) * | 1929-02-26 | 1932-07-01 | Wolf Adolf | Sealing of a rotating hollow shaft into which high-tension gases, gas mixtures, air or the like are transferred from a fixed pipe |
US2060374A (en) * | 1933-11-18 | 1936-11-10 | Huhn Gustav | Packing for the shafts of highpressure steam turbines |
GB569864A (en) * | 1943-10-22 | 1945-06-12 | Morgan Crucible Co | Improvements in and relating to labyrinth packings |
GB643576A (en) * | 1946-05-01 | 1950-09-20 | Dronningborg Maskinfab As | Improvements in bearings |
GB693349A (en) * | 1952-02-27 | 1953-06-24 | Skf Svenska Kullagerfab Ab | Improvements relating to grease-lubricated bearings and sealing devices therefor |
DE1840726U (en) * | 1960-10-07 | 1961-11-02 | Ibrepa G M B H | MECHANICAL SEAL. |
DE1846065U (en) * | 1961-10-13 | 1962-02-01 | Hans Joachim Morsch | AXLE SEAL FOR TAPE ROLLS. |
CH464625A (en) * | 1966-10-12 | 1968-10-31 | Sulzer Ag | Shaft seal for a fan, in particular for the circulation fan of a gas-cooled nuclear reactor plant |
US3739444A (en) * | 1971-02-16 | 1973-06-19 | E Vargo | Method of making a labyrinth seal |
GB1334647A (en) * | 1972-03-08 | 1973-10-24 | Le Ni I K I Khim Mash | Stages of piston compressors |
GB1567597A (en) * | 1977-11-21 | 1980-05-21 | Tovarna Motornih Vazil Tomos | Composite crankshaft and method for its assembly |
US4211424A (en) * | 1979-04-16 | 1980-07-08 | Stein Philip C | Centrifugally compensated seal for sealing between concentric shafts |
DE3012916C2 (en) * | 1980-04-02 | 1982-08-26 | Eksperimental'nyj naučno-issledovatel'skij institut metallorežuščich stankov | Labyrinth shaft seal |
-
1982
- 1982-07-08 CH CH4158/82A patent/CH659869A5/en not_active IP Right Cessation
-
1983
- 1983-06-15 DE DE3321597A patent/DE3321597C2/en not_active Expired
- 1983-06-28 GB GB08317572A patent/GB2123100B/en not_active Expired
- 1983-07-06 SE SE8303857A patent/SE454801B/en not_active IP Right Cessation
- 1983-07-08 FR FR838311412A patent/FR2529988B1/en not_active Expired
- 1983-07-08 IT IT83414/83A patent/IT1175100B/en active
Also Published As
Publication number | Publication date |
---|---|
FR2529988A1 (en) | 1984-01-13 |
DE3321597A1 (en) | 1984-01-19 |
IT1175100B (en) | 1987-07-01 |
FR2529988B1 (en) | 1989-03-31 |
IT8383414A0 (en) | 1983-07-08 |
GB8317572D0 (en) | 1983-08-03 |
SE8303857D0 (en) | 1983-07-06 |
DE3321597C2 (en) | 1986-03-06 |
GB2123100A (en) | 1984-01-25 |
CH659869A5 (en) | 1987-02-27 |
SE8303857L (en) | 1984-01-09 |
GB2123100B (en) | 1986-01-29 |
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