NO133779B

NO133779B -

Info

Publication number: NO133779B
Application number: NO4420/72A
Authority: NO
Inventors: Y Matsuda
Original assignee: Yoshida Kogyo Kk
Priority date: 1971-12-21
Filing date: 1972-12-01
Publication date: 1976-03-22
Also published as: DE2261445A1; IT976008B; MY7700143A; DE2261445B2; NO133779C; AU461240B2; DK132984B; BR7208984D0; US3922760A; NL168405C; ES187245Y; BE792644A; CH549358A; AU4967272A; FR2164613B1; SE394937B; CA1002736A; DE2261445C3; FI57205C; ZA728565B

Description

Lager. Storage.

Denne oppfinnelse vedrører lagerkon-struksjoner, særlig i forbindelse med sikkerhetsanordninger av den art som omfatter en rørformet hylse som omgir og støt-tes av en dreibar aksel. Anordningen i henhold til oppfinnelsen er særlig egnet til bruk med akselkoblinger som omfatter en teleskopaktig aksel som ved sine ender er utstyrt med et universalledd som skal for-bindes henholdsvis med en drivende og en dreven maskin. This invention relates to bearing constructions, particularly in connection with safety devices of the kind which comprise a tubular sleeve which surrounds and is supported by a rotatable shaft. The device according to the invention is particularly suitable for use with shaft couplings comprising a telescopic shaft which is equipped at its ends with a universal joint which is to be connected respectively to a driving and a driven machine.

Tidligere kjente lagre av den her gjel-dende art med inner- og ytterring og kon-taktpartier av syntetiske fibermaterialer virker tilfredsstillende hvis de alltid belas-tes i bare én retning. Lageret i henhold til oppfinnelsen kan oppta belastningen i begge aksialretninger. Previously known bearings of the kind here applicable with an inner and outer ring and contact parts of synthetic fiber materials work satisfactorily if they are always loaded in only one direction. The bearing according to the invention can absorb the load in both axial directions.

Lageret i henhold til oppfinnelsen og også sikker hetsanordninger som er utstyrt med slike lagrer kan anbringes på aksler, hvis overflater ikke er bearbeidet for på-setting av innerringer som tilhører van-lige kulelagrer. Anordningen er derfor særlig hensiktsmessig i de tilfelle hvor aksler i tidligere anskaffede maskiner skal ut-styres med sikkerhetsanordninger. The bearing according to the invention and also safety devices which are equipped with such bearings can be placed on shafts, the surfaces of which have not been processed for the fitting of inner rings belonging to ordinary ball bearings. The device is therefore particularly appropriate in cases where axles in previously acquired machines are to be equipped with safety devices.

Oppfinnelsen skal forklares nærmere ved hjelp av et eksempel under henvisning til tegningen som viser et lager med en innerring 101 som er utstyrt med et ringformet støtte- eller bæreelement 102 av nylon som er festet til ringen, og en ytterring 103 med et tilsvarende ringformet bæreelement 104 av nylon. Elementets 102 støt-teflate 105 er utstyrt med en aksial flens eller brystning 106 som griper i et ringformet spor 107 i elementets 104 støtte-flate 108. The invention shall be explained in more detail by means of an example with reference to the drawing which shows a bearing with an inner ring 101 which is equipped with an annular support or support element 102 of nylon which is attached to the ring, and an outer ring 103 with a corresponding annular support element 104 of nylon. The support surface 105 of the element 102 is equipped with an axial flange or parapet 106 which engages in an annular groove 107 in the support surface 108 of the element 104.

Den ytre ring 103 er også utstyrt med et tredje bæreelement 109 av nylon, som er festet til ringen. Det tredje element 109 er festet til den side av ringen 103 som ven-der bort fra elementet 104, og har en støt-teflate 110 som ligger an mot en støtte-flate 111 som tilhører en flens 112 på innerringen 101. Dette lager kan derfor oppta trykk i begge aksialretninger. The outer ring 103 is also equipped with a third support element 109 of nylon, which is attached to the ring. The third element 109 is attached to the side of the ring 103 which faces away from the element 104, and has a support surface 110 which rests against a support surface 111 belonging to a flange 112 on the inner ring 101. This bearing can therefore absorb pressure in both axial directions.

Innerringen 101 har også en gummi-hylse 113 som er festet til ringen og har samme diameter som lagerets innerring. The inner ring 101 also has a rubber sleeve 113 which is attached to the ring and has the same diameter as the bearing's inner ring.

Det ovenfor forklarte støttelager er en modifikasjon av lager konstruksjonen som er beskrevet 1 patent nr. 101 078 og er særlig egnet til bruk i forbindelse med tele-skopakselhylser. I et slikt tilfelle er lagerets ytterring 103 klinket til akselomhyl-lingens traktformede endestykke, som med prikket linje 114 er antydet på tegningen. Når en teleskopakselkobling som er utstyrt med en akselomhylling som inneholder anordningen i henhold til oppfinnelsen skal sammensettes, demonteres et av akselkob-lingens universalledd, akselomhyllingen trekkes over teleskopakselens deler, og universalleddet settes sammen påny. De traktformede endestykker trekkes fra hinannen til gummihylsene 113 d hver av de to lagerinnretninger omgir navene 115 i sine respektive universalledd og støter mot deres brystninger 116, som vist med prik-kede linjer på tegningen. The support bearing explained above is a modification of the bearing construction described in patent no. 101 078 and is particularly suitable for use in connection with telescope shaft sleeves. In such a case, the bearing's outer ring 103 is riveted to the shaft casing's funnel-shaped end piece, which is indicated by dotted line 114 in the drawing. When a telescopic shaft coupling which is equipped with a shaft casing containing the device according to the invention is to be assembled, one of the shaft coupling's universal joints is dismantled, the shaft casing is pulled over the parts of the telescopic shaft, and the universal joint is reassembled. The funnel-shaped end pieces are pulled from each other until the rubber sleeves 113 d each of the two bearing devices surround the hubs 115 in their respective universal joints and abut against their parapets 116, as shown by dotted lines in the drawing.

Gummihylsene 113 er dimensjonert slik i forhold til de universalledd som de skal brukes sammen med at de griper om The rubber sleeves 113 are dimensioned in such a way in relation to the universal joints with which they are to be used that they grip

navene 115, slik at innerringen 101 fast-holdes på og kan rotere sammen med den the hubs 115, so that the inner ring 101 is firmly held on and can rotate together with it

akseldel, til hvilken universalleddet er festet. Ytterringen 103 og akselomhyllingen shaft part, to which the universal joint is attached. The outer ring 103 and the shaft casing

114 til hvilken ytterringen er klinket fast, 114 to which the outer ring is riveted,

vil forbli i ro så lenge den bare tilføres for-holdsvis svakt bremsemoment, f. eks. når will remain at rest as long as it is only supplied with a relatively weak braking torque, e.g. when

den holdes i hånden. it is held in the hand.

Det ovenfor forklarte støttelager, dvs. The above-explained support stock, i.e.

lageret uten gummihylsen 113, kan brukes the bearing without the rubber sleeve 113 can be used

til forskjellige formål, omfattende slike for various purposes, including such

som er beskrevet i patent nr. 101 078. which is described in patent no. 101 078.

Claims

1. Support bearing with an outer ring and a

inner ring which is arranged coaxially and rotatable in relation to one another, where a first ring-shaped support element made of synthetic fibers is attached to one of the rings and another such element is attached to the other ring, the facing surfaces of the elements rubbing against each other when the rings are rotated in relation to each other, characterized in that a third ring-shaped support element (109) of synthetic fibers is arranged between a part belonging to the outer ring (103) and a part (111) belonging to the inner ring (101), so that it is provided with support surfaces (110, 111) which take up the axial pressure between the rings which seek to separate the first and the second element from each other.

2. Bearing according to claim 1, characterized in that the third support element is attached to one of the rings.

3. Bearing according to claim 1 or 2, characterized in that the third support element (109) is attached to the outer ring (103).

4. Bearing according to claim 1, 2 or 3, characterized in that one of the elements is made with an annular projection (106) or parapet which protrudes from one surface of the element and which engages with a recess ( 107) on one side of the second element.

5. Bearing according to one or more of the preceding claims, characterized in that at least one support element consists of nylon.

6. Bearing according to one or more of the preceding claims, characterized in that one of the bearing rings (101, 103) is equipped with a sleeve (113) which is attached to the ring and extends in the axial direction away from the support elements and which in the smallest is yielding in the radial direction.

7. Bearing according to claim 6, characterized in that the sleeve (113) is attached to the inner ring (101).