SE184555C1 - - Google Patents

Description

Uppfinnare: A GE Leufven Vid valsning av tunna band o. d. b8r arbetsvalsar med liten diameter anvandas. Arbetsvalsarna belastas inte endast av det vertikalt riktade valstrycket utan aven av horisontella krafter, fororsakade exempelvis av haspeldrag. De klena arbetsvalsama Mir darfor vara understodda saval i horisontell som I vertikal led. I s. k. sexvalsverk är varje arbetsvals underst8dd av tva stodvalsar, men derma anordning medger inte tillrackligt kraftiga stOdvalsar for mycket klena arbetsvalsar. Man brukar darfor am/arida s. k. mangvalsverk, dar man kart erhalla kraftiga st8dvalsar genom att inldgga mellanvalsar mellan arbetsvalsar och stodvalsar. Inventor: A GE Leufven When rolling thin strips, etc., work rollers with a small diameter should be used. The work rollers are loaded not only by the vertically directed roll pressure but also by horizontal forces, caused for example by reel pulls. The small work rollers must therefore be supported in both horizontal and vertical directions. In so-called six-roll mills, each work roll is supported by two support rollers, but this device does not allow sufficiently strong support rollers for very small work rolls. Therefore, so-called multi-roll mills are usually used, where you can obtain strong support rollers by inserting intermediate rollers between work rollers and support rollers.

FOreliggande uppfinning avser ett mangvalsverk for valsning av band i vilket valsgodset valsas mellan tva arbetsvalsar med liten diameter och vilket bestar av en ovre och en undre del, av vilka atminstone den ena omfattar tva stodvalsar, belagna i matningsriktningen framfor respektive bakom arbetsvalsen och anordnade att via var sin mellan-vals uppta en del av arbetstrycket och en vasentligen i samma vertikalplan som arbetsvalsen belagen stOdvals, som upptar resten av arbetstrycket antingen genom direkt anliggning mot ndmnda mellanvalsar eller via en eller flera regleringsmellanvalsar. Valsverkets andra del kan vara utrustad antingen med genomgdende maskinfasta valslagringar eller i princip utformade som den forstnamnda deleh. Sadana mangvalsverk Or tidigare Undo., vid vilka arbetsvalsens reglering sker antingen genom att de tva pa 8mse sidor om arbetsvalsen belagna stodvalsarna Or excentriskt lagrade och ansattbara mot mellanvalsarna eller darigenom, att de hada valsverkshalvorna installes relativt varandra med hjalp av bultar. Den forstnamnda konstruktionen Or dyr i tillverkning och vid den sistnamnda blir fjadringen i stativet markbar vid hoga arbetstryck. Dessa olagenheter bemastras i forelig gande uppfinning huvudsakligen ddrigenom, att de tvâ a omse sidor om arbetsvalsen belagna stodvalsarnas lagringar Or maskinfasta, under det att den mellersta stodvalsen Or forskjutbar i riktning mot och frail arbetsvalsen under atfoljande andrin.g av avstanden mellan arbetsvalsen och de fasta stodvalsarna. The present invention relates to a multi-roll mill for rolling belts in which the rolling stock is rolled between two small-diameter work rolls and which consists of an upper and a lower part, at least one of which comprises two support rollers, coated in the feed direction in front of and behind the work roll, respectively. each intermediate roller occupies a part of the working pressure and a support roller located substantially in the same vertical plane as the working roller, which absorbs the rest of the working pressure either by direct abutment against said intermediate rollers or via one or more regulating intermediate rollers. The second part of the rolling mill can be equipped either with continuous machine-fixed roll bearings or in principle designed as the first-mentioned part. Such multi-roll mills or former Undo., In which the work roll is regulated either by the two roller bearings on the working roll being mounted eccentrically stored and employable against the intermediate rollers or by having the had rolling mill halves installed relative to each other by means of bolts. The former construction is expensive to manufacture and in the latter the suspension in the frame becomes noticeable at high working pressures. These shortcomings in the present invention are mainly overcome by the fact that the two sides of the work roll are coated with the machine roll bearings or machine fixed, while the middle stand roll is displaceable in the direction of and from the work roll during the subsequent change of the distance between the work roll and the fixed rollers. the roller rollers.

Uppfinningen forklaras narmare i anslutning till bifogade ritning, ph vilken fig. 1 visar en my i valsgodsets matningsriktning av en utfOringsform av ett mangvalsverk enligt uppfinningen med 8 mellanvalsar. Fig. 2 vi- sar en skarning utefter linjeni figu- ren. I fig. 3 och 4 askadliggores schematiskt tva andra utforingsformer med sex respektive fyra mellanvalsar. For enkelhetens och overskddlighetens skull beskrives endast den Ovre valsverksdelen, eftersom delarna Or spegelvanda. The invention is explained in more detail in connection with the accompanying drawing, in which Fig. 1 shows a view in the feed direction of the rolling stock of an embodiment of a multi-roll mill according to the invention with 8 intermediate rolls. Fig. 2 shows a cut along the line in the figure. In Figures 3 and 4, two other embodiments with six and four intermediate rollers, respectively, are schematically damaged. For the sake of simplicity and clarity, only the Upper rolling mill part is described, since the parts Or are mirror water.

I fig. 1 och 2 betecknar 11 tva arbetsvalsar med ringa diameter. Arbetsvalsarna stodj as direkt av tva stodvalsar 13 via tva mellanvalsar 12 symmetriskt belagna pa iimse sidor om arbetsvalsen. Avstandet mellan arbetsvalsen 11 och respektive stodvalsar 13 Or mindre On mellanvalsarnas 12 diameter. Mellanvalsarnas rotationsaxlar 22 Or vidare belagna Over plan 23 lagda genom arbetsvalsens 11 och stodvalsarnas 13 axlar, 24 respektive 25. Stodvalsarna 13 är fast lagrade i lagerblock 16, som Or spanda mot varandra med hjalp av genomgaende bultar 17, f5rspanda med en kraft storre an den som paverkar den vid valsning. Lagerblocken 16 spannes antingen direkt eller via mellanlagg mot varandra. Arbetsvalsens vertikallage regleras med hjalp av en centralt over arbetsvalsen anordnad ytterligare stodvals 15, SOM via Lva mellanvalsar 14 stoder de Rant namnda mellanvalsarna 12. Arbetsvalsarna stodes darfOr i sista hand vardera av tva stodvalsar 13 och ytterligare en stOdvals 15. Valsarna 11 och 15 Or lagrade i lagerhus 19 och 20, som Or forskjutbara 2— — I vertikalled och styrda i horisontell led av lagerhusen 16. Lagerhusen 19 och 20 kan installas i vertikalled med hjalp av stfillskruvar 18 via en skruvvaxel 21. Da valsen 15 tryckes I riktning mot arbetsvalsen 11, pressas aven mellanvalsarna 12 nedfit-utdt, vilket resulterar i att Oxen arbetsvalsen 11 forskjutes nedfit, dock avsevart mycket mindre an valSen. 15. Den vertikala forskjutningen blir sfiledes nedvdxlad, vilket betyder, att installningsnoggrannheten blir stor. Ju mindre mellanvalsens axel 22 ãr beldgen over namnda plan 23 genom arbetsvalsens och stodvalsens axlar, desto noggrannare blir installningen. Vid den visade utforingsformen iir valsarna forsedda med axeltappar, som är lagrade i fasta respektive forskjutbara lagerhus. Givetvis kan utan att upptinningens ide frfingfis valsarna vara vridbart lagrade kring maskinfasta eller forskjutbara axlar eller axeltappar. In Figs. 1 and 2, 11 denotes two work rollers of small diameter. The work rollers are supported directly by two support rollers 13 via two intermediate rollers 12 symmetrically located on either side of the work roller. The distance between the working roller 11 and the respective support rollers 13 or less On the diameter of the intermediate rollers 12. The rotating shafts 22 of the intermediate rollers 22 Or further coated Over planes 23 laid through the shafts 11 and 25 of the support rollers 13 and 25, respectively. The support rollers 13 are fixedly mounted in bearing blocks 16, which affects it during rolling. The bearing blocks 16 are clamped either directly or via intermediate layers against each other. The vertical layer of the work roll is regulated by means of an additional support roller 15 arranged centrally above the work roller. WHICH via the intermediate rollers 14 support the intermediate rollers 12 mentioned. The work rollers were ultimately each supported by two support rollers 13 and another support roller 15. The rollers 11 and 15 are stored. in bearing housings 19 and 20, which are displaceable 2— - vertically and guided in horizontal direction by the bearing housings 16. The bearing housings 19 and 20 can be installed vertically by means of steel screws 18 via a screw shaft 21. When the roller 15 is pressed in the direction of the working roller 11 , the intermediate rollers 12 are also pressed down-fitted, which results in the Oxen working roller 11 being displaced down-fitted, but considerably less than the roller. 15. The vertical offset is slightly downgraded, which means that the installation accuracy becomes large. The smaller the axis 22 of the intermediate roll is the bellows over said plane 23 through the axes of the working roll and the support roll, the more accurate the installation. In the embodiment shown, the rollers are provided with shaft pins, which are mounted in fixed and displaceable bearing housings, respectively. Of course, without the idea of thawing, the rollers can be rotatably mounted around machine-fixed or displaceable shafts or shaft journals.

I fig. 3 och 4 visas schematiskt alternativa utforingsformer av valsverk enligt uppfinningen. I fig. 3 liar en av mellanvalsarna 14 ersatts med en enda vals 14' och i fig. 4 anligger stodvalsen 15" direkt mot mellanvalsarna 12". StOdvalsarna maste i det senare fat-let utforas med mindre diameter. I ovrigt är principen densamma som vid anordningen enligt fig. 1. Figures 3 and 4 schematically show alternative embodiments of rolling mills according to the invention. In Fig. 3 one of the intermediate rollers 14 is replaced by a single roller 14 'and in Fig. 4 the support roller 15 "abuts directly against the intermediate rollers 12". The support rollers must in the later barrel be made of smaller diameter. Otherwise, the principle is the same as with the device according to Fig. 1.

'Raver de fordelar, som inledningsvis namnts, kan framhfillas valsverksstativets symmetriska uppbyggnad i fyra lagerbarande block vid vard.era sidan av valsfindarna. Raver the advantages, which were initially mentioned, can be emphasized by the symmetrical construction of the rolling mill stand in four bearing blocks at each side of the rollers.

Ndgon direkt valsstol erfordras saledes icke. Eftersom det ãr synnerligen viktigt att valsarna är fullkoraligt parallella, blir vid en konventione_11 valsstol kraven ph lagerlagenas place-ring stora. Vid foreliggande konstruktion kart lagrens hojd- och sidoldgen justeras genom lampliga mellanlagg mellan de tyra lagerhusen 16, varfor noggrann parallellitet valsarna sinsemellan kan erhfillas, fiven orn toleranserna är ganska grova med atfoljande laga tillverkningskostnader. Thus, no direct rolling chair is required. Since it is extremely important that the rollers are fully coral parallel, in the case of a conventional roller chair the requirements for the placement of the bearing layers become large. In the present construction, the height and side joints of the bearings are adjusted by suitable intermediate layers between the thin bearing housings 16, so that precise parallelism between the rollers can be obtained, since the tolerances are quite coarse with consequent low manufacturing costs.

Claims (3)

P a tentanspr a k: 1. Mangvalsverk for valsning av band och dylikt, i vilket valsgodset valsas mellan tva arbetsvalsar (11) med liten diameter och vilket bestfir av en byre och en. undre del, av vilka fitminstone den ena omfattar tva stOdvalsar ,(13), beldgna i matningsriktningen tramfor respektive bakom arbetsvalsen och anordnade att via var sin mellanvals (12) uppta en del av arbetstrycket och en v5sentligen i samma vertikalplan som arbetsvalsen beifigen stodvals (15, 15"), som upptar resten av arbetstrycket antingen genom direkt anliggning mot namndamellanvalsar (12) eller via en. eller flera regleringsmellanvalsar (14), kfinnetecknat ddrav, att de tva d onose sidor cm arbetsvalsen belagna stodvalsarnas (13) lagringar är maskinfasta, under det att den mellersta stodvalsen (15, 15') fir forskjutbar i riktning mot ocli frau arbetsvalsen under atfoljande dndring av avstanden mellan arbetsvalsen (11) och de fasta stodvalsarna (13).Claim: 1. Multipurpose rolling mill for rolling strip and the like, in which the rolling stock is rolled between two work rollers (11) of small diameter and which consist of a barrel and one. lower part, of which at least one comprises two support rollers, (13), bellows in the feed direction trampoline and behind the work roll and arranged to occupy via their respective intermediate roll (12) a part of the working pressure and a substantially in the same vertical plane as the work roll (15). , 15 "), which absorbs the rest of the working pressure either by direct abutment against name intermediate rollers (12) or via one or more adjusting intermediate rollers (14), characterized in that the two donor sides of the working roller coated with the working roller (13) are machine-fixed, while the middle support roller (15, 15 ') is displaceable in the direction of and from the work roller while changing the distance between the work roller (11) and the fixed support rollers (13). 1.1. 2. Mangvalsverk enligt patentansprdket 1, kannetecknat darav, att samtliga valsars lagringar i den andra valsverksdelen dr maskinfasta.2. Multi-rolling mill according to patent claim 1, characterized in that the bearings of all the rollers in the second rolling mill part are machine-fixed. 3. Mh.'ngvalsverk enligt patentanspraket 1 eller 2, kannetecknat &ray, att de maskinfasta stodvalsarnas (13) lagringar är anordnade i ett flertal lagerhus (16), vilka dr losbart forenade sinsemellan och vilka forenade bildar ett valsverksstativ. Anforda publikationer: Patentskrifter Iran USA 2 169 711.3. A rolling mill according to claim 1 or 2, characterized in that the bearings of the machine-fixed standing rollers (13) are arranged in a plurality of bearing housings (16), which are releasably joined to each other and which together form a rolling mill stand. Request publications: Patents Iran USA 2,169,711.