DE1249799B - - Google Patents

Description

FEDERAL REPTIBTIC OF GERMANY

IntCl .: B 21 b- 31/02

GERMAN

PATENT OFFICE

PATENT LETTERING

German class:. 7a-31/02

Number:
File number:
, Filing date:
.Display day:
Issue date:

P 12 49 799.3-14 (J 18978)
November 7, 1960. . "
September 14, 1967
3rd September 1970

The patent specification differs from the patent specification

The invention relates to the mounting of the rolls of roll stands, in which a double-acting axial bearing is attached to the fixed bearing side at the outer end of the journal and to the fixed and . Loslagcrseite from the roll neck with their housings ; s removable radial bearings are arranged , the housing being connected on the fixed bearing side with an additional housing for the axial bearing and on the loose bearing side with a housing cover .

In the known Watzenlagerungen are designed as Roitcnlage Radiallagef are fixed by means of an additional housing in Radiatlagergehbuse. With this additional mechanism, the axial bearing is clamped via a cover, the center ring of the axial bearing being clamped via a cap or the like; is firmly connected to the roll neck . When changing the rollers, several rows of screws must be loosened on the fixed bearing side in order to 'remove the radial bearing housing with the outer rings and the rolling elements of the radial bearing CT and the axial bearing. the Walzcnzapfen off to move on. ·. · ^; . '·'".

In order to be able to use rolling stands economically , they must have the lowest possible downtimes ■ with long running lines. |) a their rollers but , consequently? Due to the wear and tear that occurs, the downtimes that ■ have to be reground are too long with the known types.

Fs is also known - already a style roller bearing for cold strip frames with a cylinder roller bearing that is guided in four rows and as a thrust bearing. Has angular or spherical roller bearings. Here, the AxiallagtirgchUuse d .eni Radiallage'rgchäiise Ittshar is connected. Although the Axiailager has a • ⁱ Wfcsent lieh.kleineren Dtircliniesser as the radial bearings, ■; it is not possible to use the two bearing housings with the AiiKcnringen utid rolling elements !! the radial bearing axially * \ (> n the whale / s / apfeii peel. 'without the two' axial bearing mhah / uzrehen.v for. · the 'AxiaIlagergehiiuse engages with a radial web between the two. Axiatlager.' Hs must aiso the Axiallagc The housing is loosened from the radial layer housing by loosening numerous screws.: *

Uekiliiiit isi further comprises lathing or regrinding voji grooved rolls, the support and '.Arbeilsw.il / .en \ W on aniibandgeriisien and the supporting rollers '45 aoiv Kallbandwalzwerken in their Kinbau ·, stückcii lind bearings. · For this is the roll with their Linbaustüekeii on a roll grinding sets ge 'and' a shamrock him gel riehen- In this way, but only heavy WaUen can be reground Zapferiende because lighter Wnl- / eirnicht iminer iii-the eleic'h ' en , '••' gc held wcr-storage of the rolls of roll stands

Patented for:

G. u. I. Jaeger G. mb H.,

5600 Wuppertal-Elberfeld,

Mettmanncr, 79-99 St. ^! .

Named as inventor:

Albert Schneider, 5600 Wuppertal-Sonnbprn;
Franz Kowalke ,. 4020 Mettmann; .
Dipl-Ing-HartmutBerner,
5600 Wuppertal- Vohwinkel.

the can. If form errors are to be avoided here, bezels must also be used for support of the rollers. However, only the work rolls for cold strip stands can be stored in Lünelten ' because only with them the space required between .. roller holder! uhd cylindrical Roll neck is present. In the case of the back-up rolls of hot and cold rolling stands, however, ' this point is the highest area. Stress due to the bending moment. This stress makes a jump. of the pin impossible. The cartography of roller balls in their own Chocks and bearings are therefore not covered on particularly heavy rollers.

Finally, .Waizenlagerungen for roll stands are known in which the axial bearing in the additional housing is arranged in a special axial bearing housing. whose outer diameter is smaller than the outer diameter the radial bearing inner rings is. For the axial fixation of the axial bearing housing is'an this or on the additional housing a radially outwardly or inwardly directed flange and are in Grooves of the Gehauscdeckels engaging projections to prevent rotation 'provided. Still, it is. with these. Roller bearings not possible, the axial bearing with its housing when removing the. Leave the roller on the roll neck and. thereby the storage with quick to assemble without having to loosen or tighten numerous fasteners when assembling 'the' housing '. in every l all also tili.- .. Axiiillager with' ausgeliiiut must graze ', ..

■ 3 ·. · ■; *

The invention is based on the object of creating an 'outer end that merges into' a paragraph 4 on which storage for the rolls of rolling stands'. . a double-acting axial bearing 5 is attached. This can be done quickly and easily when changing the rollers. A clamping ring 6 is screwed onto the end of the shoulder * without loosening numerous fasteners, which has to tighten or tighten the center ring of the bearing and above all the .5 clamps. The Lagcrfl is ill, an Axiallagergehliuse 7 Axiallager on the Fcstiagerseitc when removing ayf: 'The housing 7 is opposite the loader roll neck can remain, ger 5 by means of a snap ring 8 .od. Like. Established.

This object is achieved according to the invention in that the radial forces are provided by radial bearings 9

solved because, ß dasZueatzgehäuse taken from the axial bearing housing inner rings 10 and outer rings II ,

can be removed after loosening a simple safety device, io The outer rings II are in a radial bearing

whose outside diameter is at most the same size as housing 12 by means of an additional housing 13 and

the outer diameter of the on the roll neck. a cover 14 housed; Both parts 13 and 14

permanent bearing parts, whereby as releasable securing '■■ are on the RadialIugergehUuse 12 by means of screws 15

fastened against twisting and axial displacement between.

Additional housing and thrust bearing housing a quantitative or '$ i The Zusatzgehiiuse 13 is provided with sliding seat on. Eral in rolling mills for the rotation of axial thrust bearing housing 7 can be pushed. The Außendurchlagergehäuseri known plug bolts are provided '., Diameter of the Axiallagergehäuses 7 is at most equal result, it 1st possible the additional housing and to or slightly smaller than the inner enveloping circle radial bearing housing with the outer rings and rolling diameter of the rolling elements 16 of the Radiallagcr 9, so bodies of the radial bearings together over the axial io that the RadiaHagergchäuse 12 with the outer bearing housing can be pulled off and this in place to .ringen 11- the radial bearings 9 with their cage-guided, d. H. to avoid the removal of the axial bearing in the case of a rolling element 16 and the additional housing 13 as a scrap change. As a result, although the assembly unit must pull off the roll neck 2 , a complete axial bearing can be used on each exchange roll.

be present, but this results in / an essential as So that the roller 1 is fixed in the axial direction

Iicher advantage that makes this fact acceptable. He is, for example, two are 180 'from each other

consists in the fact that, when changing rollers, staggered socket pins 17 are provided on the. Due to the storage side, the loosening of several rows. Screws <· additional housing 13 into the axial bearing housing 7

.not applicable; around the radial bearing housing over the axial. are. At the outer end of the bolt 17 1st each

Pull off the bearing housing from the roll neck to 30 a handle 18 is provided, which is under a nose 19

can. As this can become a 'wage-intensive work process'. The KaseA 19 are open

is, the outside of the housing cover 13 is already arranged by this advantage alone,

stand up. each exchange roller a complete means of the handle 18 can the bolts 17 in

Provide thrust bearings more than balanced. swiveled around their axis of their bore and thus

The elimination of the cumbersome and time-consuming unlocking 35 ,

loosening the screws between the In the 'in Fig. 2 and 3 shown execution

set housing 'and the radial bearing housing result in an example. are, the radial bearings' as complete

lower downtimes for the roll stands, roller bearings 24 formed, the rollers 25 at the

the secondary lines for removing and installing «the assembly would fall out after they had been through the

Rolling has been drawn in the frequently required regrinding 40 of the axial bearing housing 26 of the bearing S

the rollers can be shortened considerably. These are. Therefore, when assembling, the end of the

.Ratio of working time to downtime of the axial bearing housing 26 a known Mon ₇

Roll stands are thus shifted in favor of the diaphragm 27 which has a diameter

Working time "so that the rolling stands are more economical" which is at most as large as the one

can work. '· ■ 45 of the axial bearing housing 26' and thus the inner

At. the practical version are the plug-in, enveloping circle of the rolling elements 25 of the radial bearings 24 cnt-

bolt by means of a handle 'under a nose.' speaks. The mounting sleeve 27 can therefore be in the

or the like arri housing cover can be clamped; After ver. from radial bearing housing 12, additional housing 29 and

They can pivot the socket pins by means of bearing outer rings 23 with rolling elements 25 existing

their handles, push from the thrust bearing housing and mounting unit 50, namely as far as

pull out the accessory housing; so that the assembly unit from the axial bearing housing 26

set housing; Radial bearing housing, outer rings and is withdrawn. Therefore, in this case, the.

Rolling body existing "assembly unit of. The set housing 29 with the axial bearing housing. 26.

Roll neck can be pulled off. . '; . Close. · Of course, in this case too - this is to '

The invention is in "the drawing on two AusS- 55 set housing 29 with a sliding fit on the axial bearing-

examples of management illustrated. It shows housing 26 slidable, and both parts are over

1 shows a longitudinal section through the fixed bearing side of the bolt 17. with handles 18 and lugs, 19 opposite

with radial bearings, the rolling elements of which are secured to one another in cages.

leads, are; The axial bearing housing 26 is through to the outside

2 and 3 each have a longitudinal section through the fixed cover 30, which can be screwed in.

warehouse side. a modified Αμβίήΐιπυ ^ ίοπη with thus the. Storage room is closed to the outside and

complete radial bearings in various assembly; also the center drilling 22 in the end face

settings with a Moiita socket and. of the roll neck 2 is easily accessible.

4 shows the top view of the locking of the If, also in the case of the one shown in FIG

Cuttings on the ZuKatzgehäüse. . '6 _S example <h'e complete radial bearing 24 Irmenringe 28;

The roll stands which are not shown in vinem can. Rings are also missing, where-. '

mounted roller l points in a known manner on their. through the rollers 25 then directly on the corresponding

On the fixed bearing side a pin 2 , which runs on its pin 2 enlarged accordingly.

Claims (2)

Patent claims: 1. Storage of the rolls of roll stands, at fer on the fixed bearing side at the outer end of the cap a double-acting axial bearing is bc- EStigt and on \ the fixed and Lpslagerseite «pm roll journals with their housings detach jfrrc radial lugs are arranged, with the housing on are connected to the .Festlägerseite mit'einem Zusatzjchäuse for DAQ thrust bearing and on the Loslagerieitt with a Gehauscdeckel, wherein the thrust bearing in the auxiliary housing in ejnem special thrust bearing is arranged, whose outer diameter is at most equal to the. The outer diameter of the bearing parts remaining on the roll neck is characterized; that, the additional housing (13, 29). from the 'thrust bearing housing (7, 26) after loosening a. simple fuse is removable; one or more known in rolling mill construction for securing axial bearing housings against rotation as a releasable safeguard against rotation and axial displacement between the additional housing (13; 29) and the axial bearing housing (7, Ϊ6). Steckbolzcij (17) are provided. . '· 2. Storage according to claim .1, characterized in that the socket pin (17) means * a "handle (18) under a nose (19) or the like, on the housing cover (13,29) are Festkiemmbar. Considered publications:
ίο German patent specifications No. 897178, 743150, '712 036.678 094,421732; "Blech", Vol. 6 (1959), No. 11, pp. 846 to 84 "and ■ 852; ' "Steel and Iron", Volume 78 (1958), No. 17 of
ts August 21, p. J181, and Volume 77 (1957), No. 19 from -. September 19, pp. 1320 and 1325; "Multi-Row Cylindrical Roll Neck Bearings, Form 436 A", and "Receht Actirity Concerning Antifriction Roll Neck Bearing Desings and Mouna tings, Form 474", from SKF Industries ₁₁ Inc., Philadelphia (USA); "Die Kugellager-Zeitschrift", issue 4/1959, pp. 86 to 94. For this purpose I sheet drawings