SE513033C2 - Apparatus for improving the sealing function of a sealing member - Google Patents

Apparatus for improving the sealing function of a sealing member

Info

Publication number
SE513033C2
SE513033C2 SE9900308A SE9900308A SE513033C2 SE 513033 C2 SE513033 C2 SE 513033C2 SE 9900308 A SE9900308 A SE 9900308A SE 9900308 A SE9900308 A SE 9900308A SE 513033 C2 SE513033 C2 SE 513033C2
Authority
SE
Sweden
Prior art keywords
ring
sealing member
sealing
bearing
sloping
Prior art date
Application number
SE9900308A
Other languages
Swedish (sv)
Other versions
SE9900308D0 (en
SE9900308L (en
Inventor
Per Olof Johansson
Nils Manne
Original Assignee
Skf Sverige Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Skf Sverige Ab filed Critical Skf Sverige Ab
Priority to SE9900308A priority Critical patent/SE9900308L/en
Publication of SE9900308D0 publication Critical patent/SE9900308D0/en
Priority to JP2000011134A priority patent/JP2000220649A/en
Priority to DE10002494A priority patent/DE10002494A1/en
Priority to FR0000964A priority patent/FR2789133B1/en
Publication of SE513033C2 publication Critical patent/SE513033C2/en
Publication of SE9900308L publication Critical patent/SE9900308L/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/06Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
    • F16C27/066Ball or roller bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72Sealings
    • F16C33/76Sealings of ball or roller bearings
    • F16C33/78Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/784Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7859Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a further sealing element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063Fixing them on the shaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls

Abstract

The seal (6) includes a ring (4) that can be fixed in an axial position on the axle (1), so that one of the lateral surfaces of the ring abuts against the lateral surface of the bearing (3). The ring has a first sealing surface facing the seal, and in between this surface and the seal is an elastic ring (15) with a diameter chosen to generate an axial force acting against the seal.

Description

|....\\ u Mumma divi.m.._iv.i..-.l._.ii. i 10 15 20 25 30 35 513 033 l I 1 2 Fig. 1 visar i t ärsnitt ett parti av ett lager försett med en anordning i eTlighet med uppfinningen och monterad på en axel. , . _ L _ , , Fig. 2 ar en vy i storre skala av ett parti av anordningen enligt föreliggande uppfinning såsom visats i Fig. 1. | .... \\ u Mumma divi.m .._ iv.i ..-. l ._. ii. Fig. 1 shows in section a portion of a bearing provided with a device in accordance with the invention and mounted on a shaft. ,. Fig. 2 is an enlarged view of a portion of the device of the present invention as shown in Fig. 1.

Fig. 1 visar ett Éarti av en cylindrisk axel 1 med en ansats 2. Ett enradigt dpårkullager 3 är anordnat på axeln 1 med en sidoyta av dess Lnnerlöpring under anliggning mot ansatsen 2 på axeln 1. E ring 4 är anordnad på axeln 1 och hàlles mot motsatta sidoytan av lagrets 3 innerlöpring. Denna ring 4 kvarhålles ii läge, t.ex. medelst en làsring 5 av konventionellt slag, anordnad. i ett periferiellt spår i axeln 1.Fig. 1 shows a view of a cylindrical shaft 1 with a shoulder 2. A single-row groove ball bearing 3 is arranged on the shaft 1 with a side surface of its inner running ring abutting the shoulder 2 on the shaft 1. A ring 4 is arranged on the shaft 1 and is held against the opposite side surface of the inner race of the bearing 3. This ring 4 is held in position, e.g. by means of a locking ring 5 of conventional type, arranged. in a peripheral groove in the shaft 1.

Kullagret 3 i de! illustrerade utföringsexemplet är försett med ringformade tätningslameller 6 anordnade på vardera sida av lagret och värdera, på konventionellt sätt, med dess ytterkant 7 fast|förankrad i ett spår anordnat i det inre av ytterlöpringen o h vilken vid sin innerkant har en inåt böjd fläns 8, som bi dar en cylindrisk yta belägen på ett kort avstånd från den cylindriska ytan 9 i lagrets innerring, och bildar därmed tiälsammans med denna en lång tätningsspalt.Coal stored 3 in them! The illustrated embodiment is provided with annular sealing lamellae 6 arranged on each side of the bearing and value, in a conventional manner, with its outer edge 7 fixedly anchored in a groove arranged in the interior of the outer race and which has an inwardly curved flange 8 forms a cylindrical surface located at a short distance from the cylindrical surface 9 in the inner ring of the bearing, and thus together with it forms a long sealing gap.

Lagret kan natur igtvis ha andra typer av tätningsorgan, som överbryggar ut_ met mellan de två löpringarna, där tåtningseffekteníförbättras på ett sått liknande det visade, och tätningslam llen, som illustrerats kan också vara utformad utan de inåt böjda flänsen 8.The bearing may, of course, have other types of sealing means which bridge the space between the two running rings, where the sealing effect is improved in a manner similar to that shown, and the sealing lamella illustrated may also be formed without the inwardly bent flange 8.

Som bättre fram år av Fig. 2, har ringen 4 en cylindrisk borrning, medan ess yttre mantelyta har ett första ytparti 10, som slutta i riktning mot lagerringen. Den yttre mantelytan pà ri gen har företrädesvis också ytterligare ett sluttande ytparti 11 anordnat på andra sidan i förhållande till den första sluttande ytpartiet 10 och vänt bort från lagret. De förïta och ytterligare sluttande ytpartierna 10,11 på ring n 4 år förenade av ett mjukt krökt 4| 10 15 20 25 30 35 513 035 3 övergångsparti 12, där ringen 4 har sin maximala ytter- diameter.As better shown in Fig. 2, the ring 4 has a cylindrical bore, while its outer shell surface has a first surface portion 10, which slopes in the direction of the bearing ring. The outer shell surface of the rig preferably also has a further sloping surface portion 11 arranged on the other side relative to the first sloping surface portion 10 and facing away from the bearing. The front and further sloping surface portions 10,11 on ring n 4 years joined by a softly curved 4 | 10 15 20 25 30 35 513 035 3 transition portion 12, where the ring 4 has its maximum outer diameter.

Det första sluttande ytpartiet 10 har på sin gavelsida, som i monterat läge är vänd mot lagerringen, ett ringformat urtaget parti 13, vars främsta uppgift är att tillåta lagret att röra sig axiellt, en sträcka motsvarande normalt axiellt lagerglapp, utan att riskera att tätningsorganet (tätnings- lamellen) kommer i kontakt med ringen 4.The first sloping surface portion 10 has on its end face, which in mounted position faces the bearing ring, an annular recessed portion 13, the main function of which is to allow the bearing to move axially, a distance corresponding to normal axial bearing clearance, without risking the sealing member ( the sealing lamella) comes into contact with the ring 4.

Som visas i Fig. 1 är ringen 4 placerad för att med en av dess sidoytor 14 anligga mot sidoytan på lagrets innerring, på avstånd från ansatsen 2 på axeln. En elastisk ring 15, såsom en O-ring av gummi är placerad (Fig. 1) mot det första sluttande ytpartiet 10, varvid storleken av den elastiska ringen 15 är sådan att den befinner sig under lätt spänning också i det läge som visas i Fig. 1, och därmed orsakar en lätt, inåt verkande axiell kraft på lamellen för att skydda den från att röra sig utåt från dess tätande position.As shown in Fig. 1, the ring 4 is positioned to abut with one of its side surfaces 14 against the side surface of the inner ring of the bearing, at a distance from the shoulder 2 on the shaft. An elastic ring 15, such as an O-ring of rubber, is placed (Fig. 1) against the first sloping surface portion 10, the size of the elastic ring 15 being such that it is under slight tension even in the position shown in Figs. 1, thereby causing a light, inwardly acting axial force on the lamella to protect it from moving outward from its sealing position.

Det andra sluttande ytpartiet 11 på ringen 4 underlättar monteringen av den elastiska ringen 15 i dess driftsposition såsom visas i Fig. 1. Den maximala diametern hos ringen finns vid mellanområdet 12, men med de två sluttande rampytorna 11 och 10 är det ändå ganska enkelt att applicera den elastiska ringen 15, vilken efter montering kommer att hålla ett lätt tryck mot den angränsande lamellen 6, och därmed säkerställa att tátningsfunktionen bibehålles på denna sida av lagret.The second sloping surface portion 11 of the ring 4 facilitates the mounting of the elastic ring 15 in its operating position as shown in Fig. 1. The maximum diameter of the ring is at the intermediate area 12, but with the two sloping ramp surfaces 11 and 10 it is still quite simple to apply the elastic ring 15, which after assembly will maintain a light pressure against the adjacent lamella 6, and thus ensure that the sealing function is maintained on this side of the bearing.

Uppfinningen är inte begränsad till exakt det utförande som visas i och beskrives i anslutning till ritningarna, utan modifikationer och varianter är möjliga inom ramen för de bifogade patentkraven. Fastän tätningsorganet har visats och beskrivits är det till exempel uppenbart, att anordningen enligt uppfinningen kan användas som en tätningslamell x _., ...L ._ ._ a* tflmfl|l.«-\--.... _.. _... ...__ ._ ..\_.........._.-._ . t' _.. " _..._-,... ....._..\.._w\... för att förbättra tâtningsförmàgan också hos andra typer av 513 033 4 konventionella tätningar.The invention is not limited to exactly the embodiment shown in and described in connection with the drawings, but modifications and variants are possible within the scope of the appended claims. Although the sealing member has been shown and described, it is obvious, for example, that the device according to the invention can be used as a sealing lamella x _., ... L ._ ._ a * t fl m fl | l. «- \ --.... _. . _... ...__ ._ .. \ _.........._.-._. t '_ .. "_..._-, ... ....._ .. \ .._ w \ ... to improve the sealing ability also of other types of conventional seals.

Claims (4)

10 15 20 25 30 35 513 033 5 PATENTKRAV10 15 20 25 30 35 513 033 5 PATENT REQUIREMENTS 1. En anordning för att förbättra tàtningsfunktionen hos ett tätningsorgan (6) som avtâtar ett ringformat utrymme mellan två ytor, vilka är rörliga relativt varandra och i synnerhet, men inte uteslutande för avtätning av utrymmet mellan två löpringar hos ett lager (3) monterat på en axel (1), och av det slag där detta tàtningsorgan (6) är fäst med en av sina periferiella kanter till en av dessa löpringar och har dess bilda en motsatta kant anordnad att tàtningsspalt mot den motsatta löpringen, k ä n n e t e c k n a d d ä r a v, att anordningen omfattar en ring (4), som är axiellt làsbar på axeln (1) i en position där den med en av dess radiella sidoytor (14) anligger mot sidoytan på detta lager, i närheten av detta tàtningsorgan (6), vilken ring (4) har en första sluttande yta (10) vänd mot tätningsorganet (6), och en elastisk ring (15) placerad mellan den första sluttande ytan (10) och tätningsorganet (6), vilken elastiska ring (15) har en sådan diametral storlek att den åstadkommer en axiell kraft, som verkar mot tätningsorganet.A device for improving the sealing function of a sealing member (6) which seals an annular space between two surfaces which are movable relative to each other and in particular, but not exclusively for sealing the space between two running rings of a bearing (3) mounted on a shaft (1), and of the type in which this sealing member (6) is attached with one of its peripheral edges to one of these running rings and has its forming an opposite edge arranged as a sealing gap against the opposite running ring, characterized in that, that the device comprises a ring (4), which is axially lockable on the shaft (1) in a position where it abuts with one of its radial side surfaces (14) against the side surface of this bearing, in the vicinity of this sealing member (6), which ring (4) has a first sloping surface (10) facing the sealing member (6), and an elastic ring (15) placed between the first sloping surface (10) and the sealing member (6), which elastic ring (15) has such a diametrical size that it produces e n axial force acting on the sealing member. 2. En anordning enligt patentkrav 1, k á n n e t e c k n a d d ä r a v, att ringen (4) är försedd med ett urtaget ringformat parti (13) pà dess mot tätningsorganet (6) vända sidoyta (14), och bildar ett utrymme för att tillåta axiell rörelse för lagret motsvarande normalt axiellt lagerglapp utan kontakt mellan tätningsorganet (6) och ringen (4).A device according to claim 1, characterized in that the ring (4) is provided with a recessed annular portion (13) on its side surface (14) facing the sealing member (6), and forms a space for allowing axial movement of the bearing corresponding to normal axial bearing clearance without contact between the sealing member (6) and the ring (4). 3. En anordning enligt patentkrav 1 eller 2, k ä n n e t e c k n a d d ä r a v, att ringen (4) har en yttre mantelyta omfattade sagda första sluttande yta (10) och en andra yta (11), som sluttar i motsatt riktning mot motsatt sidoyta hos ringen (4), vilken 513 033 6 andra sluttande :yta (ll) är anordnad för att underlätta montering av den elastiska ringen (15) .A device according to claim 1 or 2, characterized in that the ring (4) has an outer shell surface comprising said first sloping surface (10) and a second surface (11) sloping in the opposite direction to the opposite side surface of the ring. the ring (4), which second sloping surface (11) is arranged to facilitate mounting of the elastic ring (15). 4. En anordning enligt patentkrav 3, kànnetec nad därav, att de första och andra sluttande ytorna (10, ll) hos ringen (4 ) är inbör s förenade genom et t mjukt krökt övergàngsytparti ' (12) .A device according to claim 3, characterized in that the first and second sloping surfaces (10, 11) of the ring (4) are mutually connected by a softly curved transition surface portion (12).
SE9900308A 1999-01-29 1999-01-29 Apparatus for improving the sealing function of a sealing member SE9900308L (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9900308A SE9900308L (en) 1999-01-29 1999-01-29 Apparatus for improving the sealing function of a sealing member
JP2000011134A JP2000220649A (en) 1999-01-29 2000-01-20 Sealing device
DE10002494A DE10002494A1 (en) 1999-01-29 2000-01-21 Seal for gap between two sliding rings in axle mounted bearing, contains first ring mounted on axle and elastic ring in between seal and surface of first ring
FR0000964A FR2789133B1 (en) 1999-01-29 2000-01-26 DEVICE FOR IMPROVING THE SEALING FUNCTION OF A JOINT-FORMING ELEMENT SUCH AS A BEARING WASHER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9900308A SE9900308L (en) 1999-01-29 1999-01-29 Apparatus for improving the sealing function of a sealing member

Publications (3)

Publication Number Publication Date
SE9900308D0 SE9900308D0 (en) 1999-01-29
SE513033C2 true SE513033C2 (en) 2000-06-19
SE9900308L SE9900308L (en) 2000-06-19

Family

ID=20414298

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9900308A SE9900308L (en) 1999-01-29 1999-01-29 Apparatus for improving the sealing function of a sealing member

Country Status (4)

Country Link
JP (1) JP2000220649A (en)
DE (1) DE10002494A1 (en)
FR (1) FR2789133B1 (en)
SE (1) SE9900308L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7086726B2 (en) 2002-04-09 2006-08-08 Fuji Photo Film Co., Ltd. Inkjet recording method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE494855A (en) * 1950-03-30 1950-07-17
DE1067270B (en) * 1956-09-18
BE571631A (en) * 1957-09-30 1900-01-01
DE1959724A1 (en) * 1969-11-28 1971-06-03 Trw Inc Bearing assembly
US4575265A (en) * 1980-05-27 1986-03-11 Reliance Electric Company Seal for shaft bearings
DE3777823D1 (en) * 1987-07-25 1992-04-30 Freudenberg Carl Fa ROLLING BEARING.
US5419642A (en) * 1994-03-31 1995-05-30 The Torrington Company Sealing structure for a bearing

Also Published As

Publication number Publication date
DE10002494A1 (en) 2000-08-03
SE9900308D0 (en) 1999-01-29
FR2789133B1 (en) 2002-07-05
FR2789133A1 (en) 2000-08-04
JP2000220649A (en) 2000-08-08
SE9900308L (en) 2000-06-19

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