DK154854B

DK154854B - MOVABLE ROLLER SUPPORT FOR PIPE PIPES OR SIMILAR PARTS

Info

Publication number: DK154854B
Application number: DK192283A
Authority: DK
Inventors: Friedrich Elsaesser
Original assignee: Witzenmann Metallschlauchfab
Priority date: 1982-04-30
Filing date: 1983-04-28
Publication date: 1988-12-27
Also published as: NL8300390A; CH660516A5; FI70307C; GB2119869A; DK154854C; NL190203C; AT386880B; DK192283A; FI830604L; FI830604A0; SE8302396D0; NL190203B; SE8302396L; BE896544A; DE3216119A1; DE3216119C2; FR2526096B1; FI70307B; ATA37583A; SE448251B

Description

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Opfindelsen angår en bevægelig understøtning til rørledninger, apparater eller lignende dele med et hus, i hvilket der mellem to vægge er lejret i det mindste én drejelig del på en aksel af rustfrit stål eller med en rustfri belæg-5 ning eventuelt i mindst én bøsning med glidelejeegenskaber, f.eks. en bøsning af polytetrafluorethylen, og hvor akselen ved enderne er sikret mod aksial forskydning ved hjælp af med huller i væggene samvirkende organer.The invention relates to a movable support for pipelines, appliances or similar parts with a housing in which at least one swivel part is mounted on at least one swivel part on a stainless steel shaft or with a stainless coating optionally in at least one bushing with slip bearing properties, e.g. a sleeve of polytetrafluoroethylene, and the shaft at the ends is secured against axial displacement by means of holes cooperating with the walls.

Ved sådanne kendte akselsikringer af rullelejer for 10 rørledninger, apparater eller lignende dele, ved fjedrende ophængninger med konstant understøtningskraft, ophængninger i form af pendler eller lignende er akselen i vægboringerne i et stålhus eller af stål bestående apparatdele sikret mod aksialforskydning ved hjælp af uden for væggen på akselen 15 påsatte spænderinge eller i huller i akselen indsatte splitter, idet der mellem spænderingene eller splitterne og væggen desuden må være indsat skiver, for at husets korrosionsbeskyttelse eller lignende belægning ikke beskadiges af spænderingene eller splitterne. De. kendte udformninger har imidlertid 20 talrige ulemper. For det første kan lejringen af akselen i huset ved aggressive ydre påvirkninger føre til dannelse af pasningsrust, der kan trænge frem til glidelejet for den på akselen lejrede del og bevirke at lejeegenskaber påvirkes eller at glidelejet ødelægges.With such known shaft fuses of roller bearings for 10 pipelines, appliances or similar parts, with resilient suspension with constant support force, suspension in the form of pendants or the like, the shaft in the wall bores of a steel housing or steel device parts is secured against axial displacement by means of outside the wall. Split rings or holes in the shaft 15 mounted on the shaft 15, in addition, discs must be inserted between the tension rings or splits and the wall, so that the corrosion protection or similar coating of the housing is not damaged by the tension rings or splits. The. However, known designs have 20 numerous disadvantages. First, the bearing shaft bearing can, through aggressive external influences, lead to the formation of fit rest, which can penetrate the slide bearing for the part mounted on the shaft and cause bearing properties to be affected or the slide bearing to be damaged.

25 For det andet medfører aksialsikringen ved hjælp af spænderinge, som på grund af de nødvendige fjederegenskaber må bestå af et materiale, der heller ikke er absolut rustfrit, at der i løbet af kort tid forekommer korrosion, og at sikringen af akselen i akseretningen ikke længere er tilstrække-30 lig pålidelig. Vælger man en aksialsikring ved hjælp af en split, vil man til splitten kunne vælge korrosionsfri materialer, som imidlertid ville påvirke omkostningerne til fremstilling af rullelejet for uheldigt på grund af specialfremstillingen.25 Secondly, the shaft locking means is provided with tension rings, which, due to the required spring properties, must consist of a material which is also not absolutely stainless, that there will be corrosion in a short time and that the shaft locking in the axial direction no longer exists. is sufficiently reliable. If you choose an axial fuse using a split, you will be able to choose corrosion-free materials for the split, which would, however, adversely affect the cost of manufacturing the roller bearing due to the special manufacture.

35 Hertil kommer at længden af den af korrosionsbestandigt eller korrosionsbeskyttede og dermed dyrere materiale bestå- 235 In addition, the length of the corrosion-resistant or corrosion-protected and thus more expensive material consists of 2

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ende aksel må være så stor, at der ud for huset eller husvæggen, hvori, akselen ér lejret, er tilstrækkelig plads til at anbringe en til spænderingene svarende not henholdsvis en boring for splitten i akselenden samt plads til underlagsskiverne 5 mellem spænderingene eller splitterne og husvæggen. Til begge akselender kræves således nødvendige fremstillingsomkostninger, der bliver store på grund af den bekendte, vanskelige bearbejdning af rustfrit stål.end shaft must be so large that there is sufficient space next to the housing or housing wall in which, the shaft is mounted, to fit a groove corresponding to the tension rings or a bore for the splice in the shaft end and space for the washers 5 between the tension rings or splits and the housing wall . Thus, for both axle ends, necessary manufacturing costs are required, which become large because of the known, difficult machining of stainless steel.

Under montagen af de to akselender er det endvidere lo en ulempe, at ujævnhederne i forbindelse med fremstillingen af noten eller boringerne i akselenderne kan bevirke beskadigelse af lejebøsningen eller lejebøsningerne på den lejrede del ved indstikning af akselen i delen, ligesom også en eventuel korrosionsbeskyttelse ved boringen i væggen kan blive 15 beskadiget. Man har derfor hidtil været nødt til yderst omhyggeligt og kraftigt at afgrate de på akselenderne anbragte noter eller boringer, hvilket ligeledes er en stor fremstillingsteknisk ulempe.Furthermore, during the assembly of the two shaft ends, there is a disadvantage that the unevenness in the manufacture of the groove or bores in the shaft ends can cause damage to the bearing bushing or bearing bushes on the bearing part by inserting the shaft into the part, as well as any corrosion protection at the bore in the wall can be damaged 15. So far, it has been necessary to thoroughly and vigorously deburr the notes or bores placed on the shaft ends, which is also a great disadvantage in manufacturing.

Endelig har de kendte akselsikringer den ulemper, at 20 de let kan løsnes eller fjernes, medens der for rørledninger i fjernvarmeanlæg, til apparater osv. netop er behov for at have akselsikringer, der i årevis kan arbejde uden forstyrrelser, og som heller ikke uden videre kan løsnes af uvedkommende.Finally, the known shaft fuses have the disadvantage that they can be easily loosened or removed, while for pipelines in district heating systems, appliances etc. it is precisely necessary to have shaft fuses that can operate for years without interference, and which also without further can be detached by unauthorized persons.

Det er formålet med opfindelsen ved en bevægelig 25 understøtning for rørledninger, apparater og lignende dele af den omhandlede art at anvise en således ændret akselsikring, at dannelsen af rust, især pasningsrust forhindres, og at bearbejdning af akselenderne i videst mulig udstrækning undgås, samt således at længden af akselen kan reduceres 30 væsentligt, hvorved der altså alt i alt fås en billigere og vedligeholdelsesfri konstruktion, samtidig med at akselsikringen er udformet således holdbar, at den ikke kan fjernes uden særlige foranstaltninger.SUMMARY OF THE INVENTION It is an object of the invention to provide a movable support for pipelines, appliances and similar parts of the present invention, in such a way that a shaft protection is altered so that the formation of rust, in particular fitting rust, is prevented and that machining of the shaft ends is avoided as far as possible, and thus that the length of the shaft can be substantially reduced, thus providing a cheaper and maintenance-free design in general, while the shaft fuse is designed so durable that it cannot be removed without special measures.

Dette er ved den omhandlede bevægelige understøtning 35 ifølge opfindelsen opnået ved, at der på i det mindste den ene akselende i vægboringen er indsat en akselenden optagendeThis is achieved by the present movable support 35 according to the invention in that a shaft end accommodating at least one shaft end in the wall bore is inserted.

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bøsning af rustfrit stål, hvilken bøsning på den mod den lejrede del vendende vægside ligger an mod væggen med en radial, ringformet udvidelse, hvorhos bøsningens bort fra den lejrede del vendende, fri ende er udformet som en lukket rundtgående 5 cylinder, og denne fri ende er bragt i formsluttende indgreb med akselenden.stainless steel bushing, which bushing on the wall side facing the bearing portion abuts the wall with a radial annular extension, the bushing end facing away from the bearing member is formed as a closed circumferential cylinder and this free end is brought into form-fitting engagement with the shaft end.

Ved denne udformning er den til grund for opfindelsen liggende opgave løst således, at der mellem akselenderne og de vægge, hvori de er lejrede,'"ikke længere kan opstå nogen 10 pasningsrust. Akselenderne er altså lejrede på en måde, som ikke længere kan udøve nogen negativ påvirkning på lejringen af den på akselen drejeligt eller svingbart lejrede del. Desuden kan akselen nu præfabrikeres i en sådan glatform, at den ved indbygning ikke længere kan beskadige eller påvirke leje-15 bøsningen eller lejebøsningerne i den drejeligt eller svingbart. lejrede del, hvilket betyder en væsentlig lettere montage.In this embodiment, the object of the invention is solved such that between the shaft ends and the walls in which they are stored, "" no 10 fit rest can arise. The shaft ends are thus stored in a manner that can no longer be exercised. In addition, the shaft can now be prefabricated in such a smooth form that it can no longer damage or affect the bearing bushing or bearing bushings in the rotatable or pivotal bearing part, which means a significantly easier assembly.

Ved at anvende den nævnte bøsning er det blevet muligt at fremstille huset eller væggene af normalt og dermed pris-20 billigt stål. Den ringformede udvidelse af bøsningen erstatter desuden de hidtil nødvendige underlagsskiver af ædelstål, således at der også herved opnås en forenkling og billiggørelse.By using the said bushing, it has become possible to make the housing or walls of normal and thus affordable steel. The annular extension of the sleeve also replaces the previously needed stainless steel washers so that simplification and lowering are also achieved.

Endelig medfører udformningen af bøsningens ende som en lukket, rundtgående cylinder og dennes formsluttende 25 indgreb i akselenden en sikring, som ikke uden videre kan blive beskadiget.Finally, the design of the end of the sleeve as a closed, circumferential cylinder and its form-locking engagement with the shaft end provides a fuse that cannot be damaged readily.

Dersom akselsikringen er udformet således, at bøsningens frie ende er ombertlet radialt indad over enden af akselen, så kan længden af akselen praktisk taget begrænses 30 til den størrelse som er givet af afstanden mellem væggene og disses vægtykkelse, og der kræves ikke nogen bearbejdningsprocesser til behandling af akselen, ligesom der også i forhold til de kendte udformninger af akselen opnås en tilsvarende materialebesparelse.If the shaft fuse is designed such that the free end of the bush is radially inwardly over the end of the shaft, then the length of the shaft can be practically limited to the size given by the distance between the walls and the wall thickness thereof, and no machining processes are required for treatment. of the shaft, and similar material savings are also achieved in relation to the known designs of the shaft.

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I et andet tilfælde kan bøsningens frie ende være ombertlet radialt indad i en omkredsnot ved enden af akselen for tilvejebringelse af aksialsikring, hvorved det er muligt kun at anvende sikringen ved den ene akselende, således at det 5 stadig kun er nødvendigt at bearbejde akselen halvt så meget som de kendte akseler, ligesom det også her er muligt at afkorte akselen, idet denne ved den anden ende, som ikke skal bearbejdes, kun behøver at være netop så lang, som det er nødvendigt for at den kan lejres i huset.In another case, the free end of the sleeve may be radially inwardly inserted into a circumferential groove at the end of the shaft for providing axial protection, whereby it is possible to use only the fuse at one shaft end, so that it is still only necessary to work the shaft half so much like the known shafts, just as it is possible here to shorten the shaft, since at the other end, which is not to be machined, it only needs to be just as long as is necessary for it to be housed in the housing.

10 Det ses endvidere at akselen på den del som skal skydes gennem delen, der skal lejres, og dennes lejebøsninger er udformet glat, således at der ikke kan indtræde beskadigelse af lejet. Det har endvidere vist sig, at aksellejringen og -montagen ifølge opfindelsen trods de anvendte bøsninger er 15 prisgunstigere og enklere end de foranstaltninger, som er forbundet med kendte aksialsikringer.10 It is further seen that the shaft of the part to be slid through the part to be stored and its bearing bushes are formed smoothly so that damage to the bearing cannot occur. It has further been found that, despite the bushings used, the shaft bearing and assembly according to the invention are 15 cheaper and simpler than the measures associated with known axial fuses.

I alle de beskrevne tilfælde kan det være hensigtsmæssigt, at der mellem den lejrede del og den nærliggende væg, henholdsvis den ringformede udvidelse på bøsningen, er an-20 bragt en underlagsskive af polytetrafluorethylen. Det er herved fordelagtigt, at underlagsskiven er forbundet ud i ét stykke med bøsningen med glidelejeegenskaber, hvormed den lejrede del er drejeligt lejret på akselen.In all the cases described, it may be convenient that a polytetrafluoroethylene backing disc is disposed between the bearing member and the adjacent wall or annular extension, respectively, of the sleeve. It is hereby advantageous that the support washer integrally integral with the sleeve having sliding bearing properties, with which the bearing member is pivotally mounted on the shaft.

Endelig kan det være hensigtsmæssigt, at den ringforme-25 de udvidelse af bøsningen har en fra sin omkreds udgående, cylindrisk forlængelse, der griber rundt om underlagsskiven. Denne forlængelse tjener til at beskytte lejet i området ved underlagsskiven mod udefra indtrængende tilsmudsning.Finally, it may be convenient that the annular extension of the sleeve has a cylindrical extension extending from its circumference which grips around the support disc. This extension serves to protect the bearing in the area of the washer against external contamination.

Yderligere karakteristiske træk og detaljer ved opfin-30 delsen vil fremgå af den efterfølgende beskrivelse af udførelsesformer i forbindelse med tegningen. Af hensyn til forenkling og overskuelighed er kun medtaget konstruktioner af rullelejer til rørledninger, apparater og lignende dele, uden at opfindelsen derfor er begrænset til disse anvendelser.Further characteristic features and details of the invention will become apparent from the following description of embodiments of the drawings. For the sake of simplicity and clarity, only designs of roller bearings for pipelines, apparatus and similar parts are included, and the invention is therefore not limited to these applications.

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På tegningen viser fig. 1 en første udførelsesform for understøtningen ifølge opfindelsen med et rulleleje med cylindrisk lejrings-rulle, vist i snit gennem lejeaksen, 5 fig. 2 en anden udførelsesform vist på samme måde som i fig. 1, og fig. 3 en tredje udførelsesform vist på samme måde som i fig. 1.In the drawing, FIG. 1 shows a first embodiment of the support according to the invention with a roller bearing with cylindrical bearing roller, shown in section through the bearing axis; FIG. 2 shows another embodiment shown in the same way as in FIG. 1, and FIG. 3 shows a third embodiment shown in the same way as in FIG. First

Fig. 1 viser en del af et rullelejehus Lined vægge 2, 3 10 med huller hvori er optaget en aksel 4, på hvilken en rulle 6 er drejeligt lejret på lejebøsninger 5. Rullen bærer en ikke vist belastning f.eks. i form af et rør. Rullen er her og også i de efterfølgende eksempler fremstillet som en cylindrisk rulle. Rullen kan naturligvis også være f.eks. en konisk 15 rulle, således som det er kendt ved rullelejer til bestemte anvendelsesformål.FIG. 1 shows part of a roller bearing housing Lined walls 2, 3 10 with holes in which is mounted a shaft 4, on which a roller 6 is pivotally mounted on bearing bushes 5. The roller carries a load not shown, e.g. in the form of a tube. The roll is made here and also in the following examples as a cylindrical roll. The roll can of course also be e.g. a tapered roller, as is known in roller bearings for particular applications.

Akselen 4 sidder i hullerne i husvæggene 2 og 3 i bøsninger 7 og 8 af rustfrit stål, som på deres mod rullen 6 vendende side af væggen ligger an mod denne med en radial, ring-20 formet udvidelse 9 henholdsvis 10. De på den bort fra rullen vendende sider af væggene 2, 3 liggende ender af bøsningerne 7, 8 ombertles over enden af akselen 4, hvilket er vist til venstre i fig. 1 i den færdige tilstand, medens bøsningen 8 til højre i figuren er vist inden ombertlingen. Ved ombert-25 lingen af de frie ender af bøsningerne 7, 8 bliver akselen 4 indesluttet og fastholdt i aksial retning i forhold til huset 1, henholdsvis væggene 2, 3. Idet bøsningerne 7, 8 består af ædelstål kan huset 1 være fremstillet af normalstål, uden at der mellem huset 1 og akselen 4 kan dannes pasningsrust. Desu-30 den kan akselen 4's længde praktisk taget svare til afstanden mellem ydersiderne af væggene 2, 3, idet fremspringene ender til anbringelse af fastgørelsesorganer ikke længere er nødvendige.The shaft 4 sits in the holes in the housing walls 2 and 3 of stainless steel bushings 7 and 8, which abut against the roll 6 facing the wall with a radial, annular extension 9 and 10, respectively. facing ends of the walls 2, 3 of the rollers 7, 8 of the bushes 7, 8 are recessed over the end of the shaft 4, which is shown to the left in FIG. 1 in the finished state, while the sleeve 8 to the right of the figure is shown prior to the recirculation. Upon the releasing of the free ends of the bushings 7, 8, the shaft 4 is enclosed and held in the axial direction with respect to the housing 1 and the walls 2, 3. As the bushings 7, 8 consist of stainless steel, the housing 1 can be made of ordinary steel. , without fitting body between the housing 1 and the shaft 4. In addition, the length of shaft 4 can practically correspond to the distance between the outer sides of the walls 2, 3, the projections ending for attaching fasteners no longer being necessary.

Ved at bøsningen 7,8 har ringformede udvidelser 9, 10, er der tilvejebragt en plan anløbsflade for rullen 6 mod hvil-35 ken den kan afstøttes over en underlagsskive 11, 12 af poly-tetrafluorethylen.By the sleeve 7,8 having annular extensions 9, 10, a planar surface of the roller 6 is provided against which it can be supported over a polythetrafluoroethylene backing pad 11, 12.

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Nedenunder snittegningen i fig. 1 er vist en bøsning 7, 8 i den form, som den har før indbygningen med den ud i ét med selve bøsningen formede ring eller flange 9, 10.Below the sectional drawing of FIG. 1, a sleeve 7, 8 is shown in the form that it has prior to incorporation with the ring or flange 9, 10 integral with the sleeve itself.

Montagen af rullen 6 i udførelsesformen i fig. 1 sker 5 på simpel måde ved, at akselen 4 efter indsætning af bøsningerne 7, 8 skydes ind gennem rullen 6, hvorefter bøsningerne 7, 8 ombertles indad ved deres frie ender. Herved er der tilvejebragt en korrosionsfri aksialsikring for rullen 6 og dennes aksel 4, uden risiko for at indstikningen af akse-10 len 4 gennem lejringsboringen i rullen 6 og lejebøsningerne 5 skal medføre beskadigelse ved rivning eller på lignende måde. Endvidere er der ved ombertlingen af bøsningerne 7, 8 tilvejebragt en akselsikring, som ikke er reversibel med enkle midler, således at en voldelig eller uagtsom ophævelse af aksel-15 sikringen er modvirket.The assembly of the roller 6 in the embodiment of FIG. 1, 5 is simply done by inserting the shaft 4 after inserting the bushings 7, 8 through the roller 6, after which the bushings 7, 8 are rotated inwardly at their free ends. Hereby, a corrosion-free axial protection is provided for the roller 6 and its shaft 4, without the risk that the insertion of the shaft 4 through the bearing bore in the roller 6 and the bearing bushes 5 will cause damage by tearing or similar. Furthermore, by the relaying of the bushings 7, 8, a shaft fuse is provided which is not reversible by simple means, so that a violent or negligent lifting of the shaft fuse is counteracted.

I det i fig. 2 viste eksempel er akselen 20 kun ved sin ene ende forsynet med en omkredsnot 21, i hvilken en i væggen 23 indsat bøsning 22 er indbertlet, således at akselen 20 er fastholdt sikkert i aksialretningen. Bøsningen 22 20 har også her en radial ring eller flange 24 inden for væggen 23. Til afsluttende aksial arretering er bøsningen 22 stukket i aksialretningen, således som dette ses på den nederste del af akselen i fig. 2.In the embodiment of FIG. 2, the shaft 20 is provided at one end only with a circumferential groove 21 into which a bushing 22 inserted in the wall 23 is inserted so that the shaft 20 is securely held in the axial direction. The sleeve 22 20 also here has a radial ring or flange 24 within the wall 23. For final axial arrest, the sleeve 22 is inserted in the axial direction, as seen on the lower part of the shaft of FIG. 2nd

På denne måde kan akselen med sin til højre viste, 25 glatte ende 25 under montagen skubbes ind gennem lejringshullet i rullen 26, uden at der er risiko for nogen beskadigelse. Den glatte ende 25 er så lejret i den udad glatte, åbne bøsning 41, som sidder i den tilhørende væg, uden at der her er behov for nogen ekstra aksial sikring.In this way, the shaft with its 25 smooth end 25 shown during the assembly can be pushed in through the bearing hole in the roller 26 without any risk of damage. The smooth end 25 is then mounted in the outwardly smooth, open bushing 41 which sits in the associated wall, without the need for any additional axial fuse.

30 I den viste udformning er lejebøsningerne 27, 28 for rullen 21 forbundet ud i ét stykke med underlagsskiver 29, 30, og underlagsskiven 29 ligger mod flangen 24 på bøsningen 22, medens underlagsskiven 30 ligger over for endnu en skive 31 af rustfrit stål, som er ud i et med bøsningen 41.30 In the embodiment shown, the bearing bushes 27, 28 of the roller 21 are integrally connected to the washers 29, 30, and the washer 29 is against the flange 24 of the bush 22, while the washer 30 is facing another stainless steel disc 31 which is integral with the bushing 41.

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Fig. 3 viser en videreudvikling af udførelsesformerne i fig. 1 og 2, hvorfor detaljer af lejringen ikke skal beskrives her. Videreudviklingen består i, at bøsningen 32, 33 fra sin radiale udvidelse eller flange 34, 35 har en cylindrisk 5 rundtgående forlængelse 38, 39, som griber ind over underlagsskiven 36, 37, og som beskytter underlagsskiven 36 og 37 og dermed lejet for rullen 40 mod tilsmudsning udefra.FIG. 3 shows a further development of the embodiments of FIG. 1 and 2, why details of the camp should not be described here. The further development consists in that the bush 32, 33 from its radial extension or flange 34, 35 has a cylindrical circumferential extension 38, 39, which engages the washer 36, 37, and which protects the washer 36 and 37 and thus the bearing for the roller 40 against contamination from the outside.

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Claims

1. Movable support for pipelines, appliances or similar parts and with a housing where at least one swivel part is mounted on a stainless steel shaft or with stainless steel, between two walls 5, optionally over at least one sleeve with sliding bearing properties, e.g. a sleeve of polytetrafluoroethylene, wherein the shaft at its ends is secured against axial displacement by means of holes cooperating with the walls, characterized in that at least one of the shaft ends of the hole in the wall is inserted. the stainless steel shaft end receiving bush (7, 8? 22; 32, 33) that the bush on the wall side facing the bearing portion abuts against the wall (2, 3; 23, 42) with a radial, annular extension (9, 10; 24; 34, 35) that the free end of the bushing facing away from the bearing member is formed as a closed circumferential cylinder and that its free end is brought into shape-closing engagement with the shaft end.

Movable support according to claim 1, characterized in that the free end of the bushing (7, 8; 32, 33) for axial protection. is radially inward radially over the end of the shaft (4).

Movable support according to claim 1, characterized in that the free end of the bushing (22) is embodied in a circumferential groove (21) formed for the axial protection of the shaft (20).

Movable support according to claim 3, characterized in that the cylindrical part of the sleeve (22) extending through the wall (23) after the insertion is plunged in the direction towards the wall.

Movable support according to any one of the preceding claims, characterized in that between the bearing (6, 26, 40) and the annular extension (9, 10; 24, 31; 34, 35) of the bush (7, 8) ; 22, 41; 32, 33) is disposed 35 a pad or pad (11, 12; 29, 30; 36, 37) of polytetrafluoroethylene. O DK 154854 B

Movable support according to claim 5, characterized in that the support washer (29, 30) is integrally connected with the sleeve (27, 28) with sliding bearing properties.

Movable support according to any one of the preceding claims, characterized in that the annular extension (34, 35) of the sleeve (32, 33) has a cylindrical extension (38, 39) extending from its circumference, which engages the base plate. (36, 37). 10 15 20 25 30 35