EP2769778A2 - Roller stand for absorbing rolling forces - Google Patents

Abstract

The rolling stand (1) has three scaffolding bodies (2,3,4), where the bearing seats (2A,2B,3A,3B,4A,4B) of a roller (5,6,7) are arranged in a scaffolding body together with a bearing seat of another roller in each case. One of the scaffolding bodies has a fixed bearing (4C,4D) of the two associated rollers, and one of the scaffolding bodies has a movable bearing (2C,2D,3C,3D) of the two associated rollers. The two scaffolding bodies are connected with a force element that is effective between the two scaffolding bodies.

Description

The invention relates to a rolling stand for receiving rolling forces of at least three each on both sides in rolling forces receiving bearing seats of the roll stand mounted rollers, wherein at least the bearing seats of a roller are each arranged in a scaffold body together with a bearing seat of another roller.

Generic rolling stands are well known in the art and have been used successfully for a long time in connection with the rolling of elongate material. Here, these rolling stands serve as storage stands, in which pluggable roll shafts are rotatably supported by rollers, said set on these plugable roll shafts roller elements form a central caliber opening, through which the elongated material is performed for rolling. Here, a plurality of rollers, usually three or four rollers, arranged in a plane on the respective rolling stand. In order to be able to roll one after the other along a rolling line or axial machining section, elongate material can be rolled several times in succession, a plurality of generic rolling stands are usually arranged one behind the other along the rolling line or the axial machining section. It is understood that a conversion of such rollers to another caliber or a wear-related conversion is associated with a correspondingly high conversion costs, since at each of the rolling stands set on the plug-in roller shafts roller elements must be replaced accordingly to the rolling machine to the new caliber adjust. For this purpose, the plug-in roller shafts are pulled out of their located on the respective rolling stand bearing seats and inserted or replaced after replacing the roller elements back into the bearing seats. Often the rolling stands are designed as displaceable cassette units, which are mounted radially displaceable to the rolling line or axial machining path.

It is an object of the present invention to develop these generic rolling stands in such a way that such a conversion is simplified at least in terms of its adjustment.

In this case, it is assumed as a solution of the basic knowledge that the scaffold bodies on which the rollers are mounted on bearing seats, and the associated bearing seats play a key role by these essential functions of the Roll stand, which are otherwise implemented by scaffold plates and the connection to the scaffold bodies and thus to the bearing seats are implemented by the scaffold body or by the bearing seats themselves. This basic knowledge can be cumulatively or alternatively implemented in various aspects.

The object of the invention is achieved by a roll stand for receiving rolling forces of at least three each on both sides in rolling forces receiving bearing seats of the roll stand mounted rollers, wherein at least the bearing seats of a roller are each arranged in a scaffold body together with a bearing seat of another roller and wherein the Roll stand is characterized in that one of the scaffold body each fixed bearing of the two associated rolls and / or one of the scaffold body has each movable bearing of the two associated rolls.

In this respect, in a first bearing variant, the bearing seats of a scaffold body may each have fixed bearings of the two rollers associated with these bearing seats, so that the two associated rollers are positioned exactly and without large adjustment activities relative to each other. In a second bearing variant, the bearing seats of a scaffold body may each have non-locating bearings of the two rollers belonging to these bearing seats, so that adaptation or adjustment of the position of this scaffold body can accordingly be effected simply and without complex adjustment activities.

It is understood that, if necessary, a scaffold body can each have a fixed bearing and a scaffold body can each have movable bearings, so that, accordingly, the advantages can be implemented cumulatively. Possibly. the geometries do not allow a corresponding distribution in all scaffold bodies, so that if necessary, one of the scaffold body must or may have both fixed bearing and floating bearing, which may possibly require a correspondingly slightly complex adjustment.

With these two new bearing variants, a particularly simple roll adjustment is possible when converting to another caliber, since no readjustment of the roll shafts is required, in particular on the side of the fixed bearing. On the part of floating bearings, the bearing seats of the respective roller shaft can adjust itself. In this respect, converting the rolling stands to a different caliber is particularly easy.

Advantageously, a universally applicable rolling mill is provided by the present rolling mill, which has the advantages of the plug-in axle construction with respect to a easier roll change combined with the advantages of the design of a retracted in the rolls storage with an optimized, smallest possible roll diameter.

The present roll stands may in particular be both settable and non-adjustable 3- or 4-roll rolling stands for finish rolling of tubes, bar steel or wire, in particular with regard to a sizing mill, MW for short, or a stretch reducing mill, SRW for short.

The rolling stands preferably accommodate a plurality of rolls arranged in a plane and forming and driving a central caliber opening, the roll shafts of which are ideally rotatably mounted in rolling stands configured as movable cassette units.

The present rolling stands are thus universally applicable in all known, fixed or also adjustable rolling mill designs with optimized roll diameter, in particular rolling stands with internal drive distribution on meshing bevel gears (I-construction) and rolling stands, in which the individual roll shafts are driven separately ( A-construction).

The roller shafts are preferably designed as plug-in axis elements and can hereby be torsionally clamped with a threaded rod and a nut corresponding thereto with inner rings of the bearing units, the bearings ensure the axial positions of the rollers and the floating bearings remain displaceable over the inner rings with splined profiles.

A variant of the invention also provides that one of the frame bodies has the two fixed bearings of the associated rollers and the other of the two frame bodies has the non-locating bearings of the two associated rollers, since in particular a simple roller adjustment can be achieved.

In addition, the present object is achieved according to another aspect of the invention of an alternative rolling stand for receiving rolling forces of at least three each on both sides in rolling forces receiving bearing seats of the rolling mill bearings mounted, wherein at least the bearing seats of a roller in each case in a scaffold body together with a bearing seat of a another roller are arranged and wherein the rolling stand is characterized in that the two skeleton body in an effective only between the two framework bodies force element and / or with a radial are arranged outside and axially at the level of the rollers arranged force element and / or that the force element is effective parallel to the roll axis.

This also makes it possible to substantially simplify the roll adjustment when changing the rollers, since with a suitable design, in particular, the framework bodies can be connected to one another directly without having to be held together by additional installation space and in addition to mounting or dismounting mounting elements.

Ideally, related force elements can be arranged or provided within the framework body, so that an additional space outside the framework body is not stressed by the force elements. On the other hand, such a force element does not build on the framework body or only slightly expands it, as it generally runs essentially parallel with respect to the closest roll axis.

The term "force element" in the context of the invention describes any functional body elements by means of which a physically frictional connection between two functional components, such as the present framework bodies, can be produced.

As a force element acting between the two frameworks, for example, a screw element or a joint element may be provided, this screw element or joint element acting only between two of the framework bodies.

It is understood that the force element arranged radially outside and axially at the level or in the area of the rollers can be configured in many ways; For example, this force element may also include a ring anchor or the like.

According to another aspect of the invention, the present object is also achieved by a rolling stand for receiving rolling forces of at least three each on both sides in rolling forces receiving bearing seats of the roll stand mounted rollers, wherein at least the bearing seats of a roller each in a scaffold body together with a bearing seat another roll are arranged, wherein the rolling mill is characterized in that all frame body form-fitting the rolling stand.

By this achieved form fit also succeeds a particularly simple Walzenjustage when changing the rollers, as can be dispensed with an additional Walzgerüstrahmen. In addition, the dimensions of the roll stand can be advantageously reduced with appropriate design.

It is particularly advantageous in this context if the force element comprises a screw element or a tie rod element, since this further simplifies the roll adjustment.

If the force element is arranged axially within a caliber base, that is to say in the region of the deepest recess of the rolls, it can on the one hand be structurally simply placed sufficiently centrally. On the other hand, this can further reduce the dimension of the roll stand.

In this respect, it is advantageous if the force element is arranged cumulatively axially in the region of a roll recess of the roll stand for a roll drive journal of the rolls, so that already hereby a sufficiently central arrangement can be ensured. In addition, as a result, the force element is claimed as little as possible by the rolling forces to train.

Furthermore, the object of the invention is achieved by a roll stand for receiving rolling forces of at least three each on both sides in rolling forces receiving bearing seats of the rolling mill bearings mounted, wherein at least the bearing seats of a roller are each arranged in a skeleton body together with a bearing seat of another roller the rolling stand is characterized in that the two framework bodies are in contact with each other via a contact surface.

Due to the fact that the two framework bodies are in contact with each other via a common contact surface, it is likewise possible to simplify the roll adjustment when changing. One of the reasons for this is that the two framework bodies can interact with one another in such a way that they are directly connected to one another, so that it is possible, for example, to do without an additional rolling mill frame or the like, whereby the assembly work comprising a roll adjustment can be simplified as a whole.

According to a further aspect of the invention, the given object is also achieved by a rolling stand for receiving rolling forces of at least three each on both sides in rolling forces receiving bearing seats of the roll stand mounted rollers, wherein at least the bearing seats of a first roller in each case in a scaffold body together with a bearing seat another Roller are arranged, wherein the two skeleton bodies are directly connected via a contact surface.

In this respect, the two framework bodies are connected to each other in such a way that they themselves can reliably form a frame unit of the roll stand, which, if necessary, can also be easily opened, which makes retrofitting very simple. About this contact surface, for example, generated by rolling workers or the like can be transferred directly between the two frameworks, so that these two skeleton body can be supported directly against each other in reverse.

In this case, the contact surface, similar to the already mentioned force element, may preferably be provided in the region of a caliber base or in the region of a roller recess of the roll stand, which in turn ensures, in particular, the lowest possible load in the area of the contact surface.

In particular, in this context, it is advantageous if the connection is via a joint or via a detachable connection, such as a screw connection.

If the contact surface is arranged in a low-power region, any articulated connections or screw connections can be made smaller, since they have to absorb less labor or the like.

Accordingly, this object is achieved according to an additional aspect of the invention of a rolling stand for receiving rolling forces of at least three each on both sides in rolling forces receiving bearing seats of the roll stand mounted rollers, and wherein at least the bearing seats of a roller in each case in a scaffold body together with a bearing seat are arranged on another roller, wherein the rolling stand is characterized in that the two frame bodies are connected to each other in a low rolling force region of the roll stand.

In this way it can be ensured that the force elements or other components and / or framework body regions connecting the two framework bodies are relieved as comprehensively as possible, so that they can be dimensioned smaller, which also allows space to be saved.

In this regard, it is advantageous if the two framework bodies are connected to one another on a side of the roller opposite the rolling caliber.

In addition, the object of the invention is still of a rolling stand for receiving rolling forces of at least three each on both sides in rolling forces receiving bearing seats of Roll stand mounted rollers solved, wherein at least the bearing seats of a roller are each arranged in a scaffold body together with a bearing seat of another roller and wherein the rolling mill is characterized in that the two scaffold body are mutually displaceable in a guide.

This also makes it possible to achieve a particularly simple roll adjustment when changing rolls, since the two framework bodies are guided relative to one another when changing the rolls. It is understood that this can make the handling of the scaffold body much easier.

Advantageously, the guide comprises two lateral framework plates, so that at least two of the framework bodies can be easily displaced relative to one or more framework bodies of the rolling stand. These scaffolding plates can be provided versatile. Preferably, they are immediately configured by one of the skeleton body, so that no further components are required for this purpose.

Moreover, it is also advantageous if the guide is effective directly between the bearing seats, for example as a hinge. As a result, the framework body can be folded substantially to each other in the central area of the roller elements, whereby the access to the roller elements can be made particularly simple.

The object of the invention is also achieved by a rolling stand for receiving rolling forces of at least three each on both sides in rolling forces receiving bearing seats of the roll stand mounted rollers, wherein at least the bearing seats of a roller are each arranged in a scaffold body together with a bearing seat of another roller and wherein the bearing seats, in particular at least one of the bearings provided in the bearing seat, protrude into the associated roller.

This also makes a Walzenjustage when changing the rollers much easier, since the bearing seats can then help with a Vorpositionieren. In addition, with a suitable embodiment of the bearing seats only a smaller space on the roll stand required, and this also independent of storage in common bearing seat, which is again advantageous for the design of a smaller space.

At this point it should be mentioned that still further substantial advantages of the available invention are to be seen in the fact that through the modular rolling stand construction smaller, interchangeable assembly and production units, like rolling stands or cassette units, and improved manufacturing and procurement flexibility can be achieved. The size chain will also be expanded. As already mentioned, a faster, simpler roll change is also achieved without disassembly of the rolling bearing and / or bevel gear units, once in the roll stands or corresponding framework bodies.

In addition, smaller roll stand dimensions can be achieved with constant roll stand load and same caliber diameter, whereby an optimized, smaller roll diameter, improved forming conditions, smaller roll stand dimensions with smaller roll stand spacing, improved material application by lower end losses, lower investment and operating costs and compact, stable construction with minimal space requirement constructively simple be achieved.

It is understood that the features of the solutions described above or in the claims can optionally also be combined in order to implement the advantages in a cumulative manner.

Figur 1

schematisch eine Ansicht eines ersten Ausführungsbeispiels eines Walzgerüsts mit drei Gerüstkörpern zum Ausgestalten von insgesamt sechs Lagersitzen von drei Walzen;

Figur 2

schematisch eine weitere Ansicht des Walzgerüsts aus der Figur 1 mit aus den Lagersitzen heraus gezogenen Walzenwellen;

Figur 3

schematisch eine Explosionsansicht des Walzgerüsts aus den Figuren 1 und 2;

Figur 4

schematisch eine weitere Ansicht des Walzgerüsts aus den Figuren 1 bis 3 ohne die ein Kaliber bildenden Walzenelemente;

Figur 5

schematisch eine Ansicht eines zweiten Ausführungsbeispiels eines Walzgerüsts mit drei zumindest teilweise gelenkig miteinander verbundenen Gerüstkörpern zum Ausgestalten von insgesamt sechs Lagersitzen von drei Walzen;

Figur 6

schematisch eine weitere Ansicht des Walzgerüsts aus der Figur 5 mit geöffneten Gerüstkörpern;

Figur 7

schematisch eine Ansicht eines dritten Ausführungsbeispiels eines Walzgerüsts mit drei mittels Schraubenelemente miteinander verbundenen Gerüstkörpern zum Ausgestalten von insgesamt sechs Lagersitzen von drei Walzen;

Figur 8

schematisch eine Explosionsansicht des Walzgerüsts aus der Figur 7;

Figur 9

schematisch eine Ansicht eines anderen Ausführungsbeispiels eines alternativen Walzgerüsts mit vier Gerüstkörpern zum Ausgestalten von acht Lagersitzen von vier Walzen;

Figur 10

schematisch eine weitere Ansicht des Walzgerüsts aus der Figur 9 mit aus den Lagersitzen heraus gezogenen Walzenwellen;

Figur 11

schematisch eine weitere Ansicht des Walzgerüsts aus den Figuren 9 und 10 ohne Walzenelemente;

Figur 12

schematisch eine perspektivische Ansicht einer Walzanlage mit einer Vielzahl an entlang einer Walzstrecke hintereinander anordenbarer Walzgerüste; und

Figur 13

schematisch eine teilweise geschnittene Ansicht der Walzanlage aus der Figur 12.

Further advantages, objects and features of the present invention will be explained with reference to the following description of exemplary embodiments, which are shown in particular in the appended drawing. In the drawing show:

FIG. 1

schematically a view of a first embodiment of a rolling mill with three frameworks for designing a total of six bearing seats of three rolls;

FIG. 2

schematically another view of the roll stand from the FIG. 1 with roller shafts pulled out of the bearing seats;

FIG. 3

schematically an exploded view of the roll stand from the FIGS. 1 and 2 ;

FIG. 4

schematically another view of the rolling mill from the FIGS. 1 to 3 without the caliber forming roller elements;

FIG. 5

schematically a view of a second embodiment of a rolling mill with three at least partially articulated interconnected scaffold bodies for designing a total of six bearing seats of three rollers;

FIG. 6

schematically another view of the roll stand from the FIG. 5 with open frameworks;

FIG. 7

schematically a view of a third embodiment of a rolling stand with three interconnected by means of screw elements scaffold bodies for designing a total of six bearing seats of three rolls;

FIG. 8

schematically an exploded view of the roll stand from the FIG. 7 ;

FIG. 9

schematically a view of another embodiment of an alternative rolling mill with four frameworks for designing eight bearing seats of four rolls;

FIG. 10

schematically another view of the roll stand from the FIG. 9 with roller shafts pulled out of the bearing seats;

FIG. 11

schematically another view of the rolling mill from the Figures 9 and 10 without roller elements;

FIG. 12

schematically shows a perspective view of a rolling mill with a plurality of along a rolling line in a row can be arranged rolling stands; and

FIG. 13

schematically a partially sectioned view of the rolling mill from the FIG. 12 ,

When in the FIGS. 1 to 4 a first rolling mill 1 comprises a total of three scaffold bodies 2, 3 and 4, in which three rollers 5, 6 and 7 are mounted concentrically around a rolling line 8 and an axially extending machining section, wherein the three rollers 5, 6 and 7 a caliber 8A designed for rolling a rolling stock, not shown here.

Each of the rollers 5, 6 and 7 consists of a roller shaft 9, 10 and 11 and an associated roller element 12, 13 and 14, wherein these three roller elements 12, 13 and 14, the caliber 8A ausgestalten, as in particular very well after the Representation according to the FIGS. 1 to 3 is recognizable.

The scaffold bodies 2, 3 and 4 are each configured at an angle so that they respectively provide a corresponding bearing seat 2A, 2B, 3A, 3B or 4A and 4B for two of the three roller shafts 12, 13 and 14.

As in particular according to the illustration according to the FIG. 4 can be seen, the first frame body 2, the two bearing seats 2A and 2B in the form of a first movable bearing 2C for supporting the first roller shaft 9 and in the form of a second movable bearing 2D for supporting the third roller shaft 11 from. Accordingly, the second frame body 3 configures a first bearing seat 3A in the form of a first movable bearing 3C for supporting the first roller shaft 9 and a second floating bearing 3B in the form of another movable bearing 3D for supporting the second roller shaft 10. In addition, a fixed bearing 3E for axially fixing the first roller shaft 9 is still present on the second frame body 3. In addition, the third designed Scaffold body 4 also a first bearing seat 4A and a second bearing seat 4B, wherein in the first bearing seat 4A, the second roller shaft 10 and in the second bearing seat 4A, the third roller shaft 11 are respectively mounted on the third frame body 4. Here, the first bearing seat 4A as the first fixed bearing 4C of the third frame body 4 and the second bearing seat 4B as a second fixed bearing 4D of the third frame body 4 is designed.

In this embodiment, the floating bearings 2C, 2D, 3C, 3D are each designed as a tapered roller bearing in an X arrangement, while the first bearing 4C and the second bearing 4D are each designed as a tapered roller bearing. The additional bearing 3E is designed as a double-acting axial deep groove ball bearings.

In this respect, the first roller shaft 9 about a first insertion or rotation axis 15, the second roller shaft 10 about a second insertion or rotation axis 16 and the third roller shaft 11 about a third insertion or rotation axis 17 on the one hand structurally easily replaceable and on the other hand rotatable stored in the rolling stand 1. Thus, a roll change can be made quickly, the roller shafts 9, 10 and 11 are each designed as plug-shaft elements (not numbered here separately), in particular according to the representations according to the Figures 2 and 3 easy to recognize. A good plug-in capability of the individual roller shafts 9, 10 and 11 is structurally simply ensured by the fact that the individual roller shafts 9, 10 and 11 are not directly mounted on the respective frame body 2, 3 and 4, but indirectly by corresponding bearing sleeve elements 20th (Numbered here only by way of example), as is already known from the prior art.

According to the present first exemplary embodiment, the bearing bush elements 20 are designed for a directly as bevel gears 21, 22, 23 and 24 respectively. On the other hand, the bearing bush elements 20 are constructed as a blind hole bushing 25 and as through bushings 26 and 27, respectively.

By means of the bevel gears 23 and 24 are the second roller 6 and the third roller 7 with the bevel gears 21 and 22 of the first roller 5 in operative contact, so that the rollers 6 and 7 - in a conventional manner - both by the first Roller 5 can be driven. In this respect, the first roller shaft 9 of the first roller 5 is also a drive shaft 9A.

The first roller shaft 9 has a total of four splined profile sections 30, 31, 32 and 34. By means of the first splined profile region 30, a drive connection to a drive element, not shown here, can be produced. By means of the second splined profile area 31 is made a positive connection to the first bevel gear 21. Accordingly, a positive connection to the first roller element 12 and by means of the fourth spline profile portion 33 by means of the third spline portion 32 realized a positive connection to the blind hole bushing 25 of the second bevel gear 22, provided that the first roller shaft 9 is inserted into the roll stand 1 (see in particular FIG. 1 ).

The second roller shaft 10, however, is equipped only with two spline sections 34 and 35, the second roller shaft 10 is in operative contact with the relevant first splined section 34 with the third bevel gear 23 and is positively connected by means of the relevant second spline section 35 with the second roller element 13.

Accordingly, the third roller shaft 11 has two other splined profile regions 36 and 37, wherein the third roller shaft 11 is operatively connected to the fourth bevel gear 24 by means of the first other splined profile region 36. By means of the second other splined section section 37, the third roller shaft 11 is positively connected to the third roller element 14, provided that the third roller shaft 11 is correspondingly plugged into the rolling stand 1, as shown for example in FIG FIG. 1 well shown.

According to the described structure of the roll stand 1, the two bearing seats 2A and 2B of the first frame body 2 are each designed as movable bearings 2C and 2D, respectively. This also applies to the first bearing seat 3A and the second bearing seat 3B of the second frame body 3, since the two respective bearing seats 3A and 3B are also configured as movable bearings 3C and 3D, respectively. In this respect, the rollers 5, 6 and 7, after a conversion to another caliber 8A, can align themselves with respect to their positions in the framework bodies 2 and 3 of the roll stand 1, so that a roll adjustment is correspondingly simplified.

Against an undesirable axial displacement, the second roller 6 and the third roller 7 are secured by the two bearing seats 4A and 4B of the third frame body 4, since these are each designed as a fixed bearing 4C and 4D. Thus, the first roller 5 is secured against such undesirable axial displacement, the second frame body 3 in addition to the two movable bearings 3C and 3D additionally equipped with the fixed bearing 3E, by means of which the blind hole bushing 25 and thus the first roller shaft 9 secured axially displaceable accordingly is mounted on the second frame body 3. Thus, the first frame body 2 only movable bearing and the third frame body 4 only fixed bearings, while the second Scaffold body 3 has both fixed bearing and floating bearing and so far represents a hybrid form, which is inevitable in such a roller assembly is inevitable.

Thus, the third frame body 4, two fixed bearing 4C and 4D of the associated rollers 6 and 7 and the other with these two rollers 6 and 7 corresponding framework body on the movable bearings 3D and 2D.

At this point it should be mentioned that the three framework bodies 2, 3 and 4 are clamped to the present rolling stand 1 by means of a rolling mill frame part not further shown here.

That in the Figures 5 and 6 shown second embodiment of a roll stand 101 is substantially identical in construction to the roll stand 1 with respect to in the FIGS. 1 to 4 shown first embodiment, so that only modified or differently configured component components are explained in this second embodiment in order to avoid repetition.

The roll stand 101 likewise comprises three framework bodies 102, 103 and 104, wherein these framework bodies 102, 103 and 104 are operatively connected to one another by means of a force element 150, 151 and 152 which acts between the respectively adjacent framework bodies 102/103, 103/104 and 104/102 are; namely, in such a way that the framework bodies 102, 103 and 104 absorb the rolling forces and, with a suitable embodiment, configure a rolling stand unit (not shown here) without a further rolling mill frame (not shown here).

As a result, the shape of the roll stand 101 can be substantially further simplified, so that, for example, an extremely simple adjustment of the rolls 5, 6 and 7 is achieved when changing or changing the roll to another caliber 8A.

The first force element 150 is configured in this second exemplary embodiment by a screw connection 153. In this case, a relevant bore 154 of the screw 153 runs parallel to the plug or rotation axis 15 of the first roller 5, wherein the actual screw member 155 inserted into the first frame body 102 or screwed through in a through-hole thread 156 and further into a blind hole thread 157 in the second Scaffolding body 103 is screwed.

In this respect, the two framework bodies 102 and 103 are above contact surfaces 160 and 161 (see Fig. 6 ) are in direct contact with each other. This eliminates the need for more a Walzgerüstrahmen forming component components, whereby the adjustment when changing the rollers 5, 6 and 7 is further simplified.

The second and third force elements 151 and 152 are each configured by a hinge connection or in each case by a corresponding guide 165 or 166. Here, the two skeleton body 104/103 and 104/102 in the respective guide 165 and 166 are mutually displaceable.

In this respect, the first guide 165 of the two framework bodies 104 and 103 to each other by means of a first pivot joint 167 and the second guide 166 between the third frame body 104 and the first frame body 102 accomplished by means of a second pivot joint 168. Each of the swivel joints 167 and 168 can be realized with high load capacity by means of two lateral framework plate elements formed by the framework body 104 and in each case one articulation tongue element, which in each case are mounted in a rotationally movable manner between the two framework plate elements. Here, the hinge tongue elements are each formed by the frame body 102 and 103, wherein the hinge tongue elements and the frame plate elements are rotatably connected to each other by means of a screw as a rotation axis.

The guides 165 and 166 and the hinges 167 and 168 are also each arranged between the bearing seats 4A and 3B and 4B and 2B in low-rolling areas.

In particular, by the scaffold body 102, 103 and 104 and its screw connection 153 and articulated joints or guides 156 and 166 designed by this construction, the rolling stand 101 can be constructed very compact, as this eliminates the need for an additional rolling mill frame (not shown here).

The rolling stand 101 can also be made more compact, in particular smaller, if the force elements 150, 151 and 152 are arranged radially outside and axially at the level of the rollers 5, 6 and 7 respectively. This is especially true when the respective force element 150, 151, 152 is arranged axially in the vicinity of a caliber base 170 (here only exemplarily numbered) of the rolls 5, 6 or 7. The caliber base 170 is in this case formulated by a region 171 with the deepest recess of the respective roller 5, 6, 7 or of the relevant roller element 12, 13 or 14. In particular, as a result, the respective force element 150, 151 and 152 are arranged sufficiently centrally.

That in the FIGS. 7 and 8th The rolling stand 201 shown as the third embodiment essentially has an identical construction to the two previously described Rolling mills 1 and 101 on. The rolling stand 201 differs, however, with regard to its framework bodies 202, 203 and 204 in particular to the effect that, instead of the above-described articulated joints or guides 165 and 166, only screw connections 253, 275 and 276 are now provided. All screw connections 253, 275, 276 comprise as force elements 250, 251 and 252 each a screw element 255 (here only exemplarily numbered), which are screwed into corresponding threaded bores 254, so that the framework bodies 202, 203 and 204 at their respective contact surface pairings 277, 278 or 279 are directly connected with each other. As a result, this mill stand 201 is particularly compact, so that the work in connection with a Walzenjustage are much easier. The individual framework bodies 202, 203 and 204 are in each case displaceably mounted along a displacement axis 202F, 203F or 204F on the rolling line 8 or away from the rolling line 8, whereby the handling of the individual framework bodies 202, 203 and 204 is substantially simplified and As a result, a roll change can be made accelerated. Since all other components or component groups are identical to those described above, they are merely provided with reference numerals, which are identical to the previous two embodiments with respect to the rolling stand 1 and 101.

In the in the FIGS. 9 to 11 shown fourth embodiment, the rolling stand 301 shown there comprises a total of four scaffold body 380, 381, 382 and 383, which are held by a Walzgerüstrahmen 384 framed. In addition, the individual scaffold bodies 380 to 383 are in operative contact by means of clamping piece elements 385, 386, 387 and 388 of the rolling mill frame 384. That is, the first frame body 380 and the second frame body 381 are supported against each other and on the rolling stand frame 384 by means of the first clamping piece element 385. In addition, the second frame body 381 is supported relative to the third frame body 382 by means of a second clamping piece element 386. Furthermore, the third frame body 382 is supported on the fourth frame body 383 by means of a third clamping piece element 387. And between the first frame body 380 and the fourth frame body 383 acts the fourth clamping piece element 388 supporting.

By means of the rolling stand frame 348 and the four clamping piece elements 385, 386, 387 and 388, the individual framework bodies 380, 381, 382 and 383 are clamped together to form the rolling stand 301 and slidably mounted, as a comparison of Figures 10 and 11 shows, wherein such storage in particular for the in FIGS. 1 to 4 illustrated embodiment is suitable. In contrast to the three exemplary embodiments explained above, the rolling stand 301 is also characterized by two input shafts 309A and 309B, which are also defined as pinch roller elements.

In this respect, the rolling stand 301 has two first rollers 305 and a second roller 306 and a third roller 307, which together configure the caliber 308 of the rolling stand 301.

The two input shafts 9A and 9B rotate about the pivot axes 315A and 315B respectively, while a roller shaft 309 of the second roller 306 about a second pinion axis 316 and a roller shaft 310 of the third roller 307 about a third plug. or rotation axis 317 rotate.

Here, the first frame body 380 designs two bearing seats 380A and 380B. Accordingly, the second frame body 381 configures two bearing seats 381A and 381B, the third frame body 382 two bearing seats 382A and 382B, and the fourth frame body 383 corresponding to two bearing seats 383A and 383B.

The bearing seats 380A and 380B of the first frame body 380 are realized as movable bearings (not numbered here) in the form of tapered roller bearings in an X arrangement.

The bearing seats 381A and 381B of the second frame body 381 are each configured as a fixed bearing (not numbered here). These bearings include both a double-acting axial deep groove ball bearing and a double row radial cylinder bearing.

The two bearing seats 382A and 382B of the third frame body 382 are again realized as pure movable bearings, which each comprise tapered roller bearings in an X arrangement.

In this regard, the two bearing seats 383A and 383B of the fourth frame body 383 are in turn designed as a fixed bearing (not explicitly numbered here). Also, these bearings of the fourth frame body 383 each include a double-acting axial deep groove ball bearings and a double row radial cylinder bearings.

The first input shaft 9A is accordingly mounted on the first frame body 380 by means of a bevel gear 389 via the floating bearing of the first bearing seat 380A and by means of a blind hole bush 390 on the fixed bearing of the first bearing seat 381A to the second frame body 381.

The second input shaft 9B, however, is mounted on the fourth frame body 383 via the fixed bearing of the first bearing seat 383A by means of a bearing bush 391 and on the third frame body 382 by means of a crown wheel 392 via the floating bearing of the second bearing seat 382B. This allows the advantages already explained several times with regard to the simplified roll adjustment can also be achieved on the roll stand 301 of the fourth embodiment.

The second roller 6 and the third roller 7 are mounted identically in the rolling stand 301, namely in each case via a through bush 326 and 327, and a bevel gear 323 and 324, respectively.

That in the Figures 12 and 13 Exemplary embodiment illustrated shows a first possible construction of an advantageous rolling mill 1000, in which the previously described rolling stands 1, 101, 201 or 301 can be used and operated.

In this rolling mill 1000, a separate controllable drive motor 1002 and a transfer case 1003, each with two drives (not shown here), are assigned to each scaffolding station 1001 for each rolling stand 401 located on the scaffolding station 1001 in a rolling position 1004. The rolling stands 401 are also designed here as a movable cassette elements. Here, the drive motors 1002 rest on a foundation 1005, which also carries the scaffold sites 1001. The rolling stands 401 in this embodiment in turn each comprise four rollers (see, for example FIGS. 9 to 11 ), which form a caliber for rolling to be rolled. All rolling mills 401 according to this embodiment, apart from the caliber diameters, which in this embodiment taper in one rolling direction 1006 from rolling stand 401 to rolling stand 401 and can change their caliber in other embodiments, are identical in construction.

The rolling stands 401 of the even-numbered scaffold places 1001 are in this embodiment in a rolling mill stand within the rolling line 8 (see FIGS. 1 to 11 ) arranged inclined by 22.5 ° to a rolling axis corresponding to the rolling direction 1006 with respect to the horizontal. Accordingly, the rolling stands 401 of the odd-numbered scaffold places 1001 in the rolling stand within the rolling line 8 are offset by -22.5 ° relative to a rolling direction 1006 corresponding rolling axis with respect to the horizontal. Accordingly, a roll stand 401 is offset to the next adjacent roll stand 401 in each case by 45 ° about the rolling axis.

The individual rolling stands 401 sit in this embodiment each on a guided change shoe 1007 (see FIG. 13 ) with roles. This special changing device allows a rolling stand change in a few minutes in a confined space.

The rolling stand change of the even-numbered scaffold places 1001 takes place in the rolling direction 1006 from the right-hand side of the rolling line 8. The rolling stand change of the odd-numbered scaffolding places 1001 takes place in the rolling direction 17 from the left side of the rolling line 8. On each side of the rolling mill 1000 there is an on unnumbered rails, which are supported by the foundation 1005, movable changeover truck 1008 for receiving both the up to a change in use rolling stands 401 and the prepared for use rolling stands 401. Also located on each rolling mill side for each rolling stand 401 is a rolling stand extractor 1009 with a hydraulic pull-out cylinder , which are each mounted on the foundation 1005. The change of the individual rolling stands 401 is easily possible with the aid of these rolling stand extracting devices 1009.

The rolling stands 401 in use are pulled out of the rolling stand or from their frame 1001 on the respective change carriage 1008 to change with the cylinder of the rolling stand extracting device 1009, wherein they describe an arc on a change track 1010 and from the inclined position of 22.5 ° or .. 22.5 ° in its rolling position 1004 reach its horizontal position on the change carriage 1008 in a change position 1011. Thereafter, the change carriage 1008 moves along the rolling direction 1006 by one stand distance. Now, the rolling stands 401 provided for replacement in a rolling position 1004 are located in front of the mill stand opening 1001 and in front of the mill stand 1001 and can be pushed with the cylinder of the rolling stand extracting device 1009 to the stand 1001 in the rolling position 1004 within the rolling mill stand. When the rolling stands 401 reach an angle of 22.5 ° and -22.5 ° respectively when moving on the change track 1010 and are brought to the rolling position 1004, couple input clutches 1012 (see FIG. 13 ) for transmitting the drive power of the drive motors 1002 to the rolling stands 401 automatically.

The automatic coupling of the input clutches 1012 is facilitated by the inclination of the exchange path 1010 of 22.5 ° and -22.5 ° in the region of the rolling position 1011, since no additional forces are required for the dome operation due to gravity. The rolling stand extractor 1009 thus requires only a fraction of the drive power for retracting the rolling stands 401 into the rolling positions 1011 than for extending the rolling stands 401 after use. Also, the inclined exchange path 1010 requires a high level of operational reliability during rolling, since the rolling stands 401, due to their own weight, abut against the respective framework site 1001 and are positioned in this way. In this respect, if necessary, as in particular in this embodiment, an additional backup for positioning the rolling stands 401 omitted.

The mill stands 401 removed from the rolling mill 1000, which are now stored correspondingly displaced on the change carriage 1008, can be taken from the change carriage 1008 by a crane after the rolling operation has been reinstated, supplied for further use and by new rolling stands 401, 1, 101, 201 or 301 be replaced. Other measures, such as an immediate maintenance or the like may optionally be made there. The change-over shoes 1007 preferably remain on the change carriage 1008 in this embodiment when the rolling stands 401 are removed from the change carriage 1008. It becomes clear on the basis of the two change positions 1011, 1011A on the common change carriage 1008 that the set-up time and thus the downtime of the rolling bill 1000 are reduced to a minimum, since the actual transport of the rolling stands 401 to the rolling mill and from the rolling mill away from the actual Preparing is decoupled.

The alternating arrangement of the rolling stands 401 along the rolling line 8 or along the rolling direction 1006 offers, as the FIG. 12 can be removed, the further advantage that the rolling stands 401 are mutually offset by 45 ° to the rolling axis. This smoothes any burrs that may be produced during rolling when passing through the next roll stand 401, since abutting edges of the rolls used in each roll stand 401 are at a different position, namely offset by 45 °, with each pass of a rolling stand 401.

In the sectional view of the rolling mill 1000 after FIG. 13 the arrangement of an even-numbered scaffolding site 1001 with an angle of 22.5 ° to the horizontal and the right-hand side to the rolling direction 1006 arranged changing device clearly. The mirror-image arrangement applies to the odd-numbered scaffolding sites 1001, wherein in each case a drive 1002 of an even-numbered scaffolding site 1001 is arranged below the change-over position 1011 of an odd-numbered scaffolding site 1001. The alternating arrangement of the drives 1002 further allows the use of stronger drives, since now along the rolling direction 1006 more free space for a single drive remains and drives with approximately twice and thus a higher torque can be used.

Moreover, in this exemplary embodiment, the changing orientation of the respective change paths 1010 directly implies that sufficient space remains available between the rolling stands 401 in the individual change positions 1011 or 1011A for a further rolling stand 401 in one of the change positions 1011 or 1011A, since at this height there provided scaffolding 1001 from the other side is equipped or converted. therefore For example, by offsetting the truck 1008 about a millstand width, a corresponding set of new rolling stands 401 may be provided. LIST OF REFERENCE NUMBERS 1 rolling mill 8th Rolling line or axial machining path 2 first framework body 2A first bearing seat of the first frame body. 2 8A caliber 9 first roll shaft 2 B second bearing seat of the first frame body second 9A Input shaft 10 second roller shaft 2C first movable bearing of the first frame body 2 11 third roller shaft 12 first roller element 2D second floating bearing of the first frame body. 2 13 second roller element 14 third roller element 3 second framework body 15 first plug-in or rotation axis 3A first bearing seat of the second frame body 16 second plug-in or rotation axis 17 third plug-in or rotation axis 3B second bearing seat of the second frame body 20 Bearing sleeve member 21 first bevel gear 3C first floating bearing of the second frame body. 3 22 second bevel gear 23 third bevel gear 3D second floating bearing of the second frame body. 3 24 fourth bevel gear 25 Blind hole socket 3E Fixed bearing of the second frame body. 3 26 first through bushing 27 second passage socket 4 third framework body 30 first splined profile area 4A first bearing seat of the third frame body. 4 31 second splined profile area 32 third splined profile area 4B second bearing seat of the third frame body. 4 33 fourth splined profile area 34 first further splined section area 4C first fixed bearing of the third frame body. 4 35 second further splined profile area 4D second fixed bearing of the third frame body. 4 36 first other splined profile area 37 second other splined profile area 5 first roller 6 second roller 7 third roller 101 rolling mill 102 first framework body 103 second framework body 254 threaded holes 104 third framework body 255 screw element 150 first force element 275 second screw connection 151 second force element 276 third screw connection 152 third force element 277 first contact surface pairing 153 screw connection 278 second contact surface pairing 154 threaded hole 279 third contact surface pairing 155 screw element 156 Through-hole thread 301 rolling mill 157 Blind hole 305 two first rolls 160 first contact surface 306 second roller 161 second contact surface 307 third roller 165 first articulated connection or guide 308 caliber 309A first input shaft 166 second articulated connection or guide 309B second input shaft 310 roller shaft 167 first rotary joint 311 roller shaft 168 second pivot 315A Plug-in or rotation axis 170 groove base 315B Plug-in or rotation axis 171 Area 316 second plug-in or rotation axis 317 third plug-in or rotation axis 201 rolling mill 323 bevel gear 202 first framework body 324 bevel gear 202F first displacement axis 326 first through bushing 203 second framework body 327 second passage socket 203F second displacement axis 380 first framework body 204 third framework body 380A first bearing seat of the first 204F third displacement axis Scaffolding 380 250 first force element 380B second bearing seat of the first frame body 380 251 second force element 252 third force element 381 second framework body 253 first screw connection 381A first bearing seat of the second frame body 381 392 Kopfkegelrad 381B second bearing seat of the second frame body 381 401 rolling mills 382 third framework body 1000 rolling plant 382A first seat of the third 1001 stand positions Scaffolding 382 1002 drive motors 382B second bearing seat of the third frame body 382 1003 Transfer Case 1004 roll position 383 fourth framework body 1005 foundations 383A first bearing seat of the fourth frame body 383 1006 rolling direction 1007 exchange Shoe 383B second bearing seat of the fourth frame body 383 1008 change car 1009 Walzgerüstausziehvorrichtungen 384 Stand frame 1010 AC train 385 first clamping piece element 1011 change position 386 second clamping piece element 1011 further change position 387 third clamping piece element 1012 Input drive couplings 388 fourth clamping piece element 389 bevel gear 390 Blind head barrel 391 bearing bush

Claims (17)

Roll stand (1; 101; 201; 301; 401) for receiving rolling forces of at least three bearing seats (2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, respectively) receiving rolling force on both sides. 383A, 383B) of the rolling mill stand (1; 101; 201; 301; 401), wherein at least the bearing seats (2A, 2B, 3A, 3B, 4A, 4B; 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of a roller (5, 6, 7; 305, 306, 307) each in a frame body (2, 3, 4; 102, 103, 104, 202, 203, 204, 380, 381, 382, 383) together with a bearing seat (2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of another roller (5 , 6, 7; 305, 306, 307), characterized in that one of the scaffold bodies (2, 3, 4; 102, 103, 104; 202, 203, 204; 380, 381, 382, 383) each have fixed bearings (3E, 4C, 4D) of the two associated rollers (5, 6, 7, 305, 306, 307) and / or one of the frame bodies (2, 3, 4, 102, 103, 104, 202, 203, 204, 380) , 381, 382, 383) jewe ils movable bearing (2C, 2D, 3C, 3D) of the two associated rollers (5, 6, 7; 305, 306, 307). Roll stand (1; 101; 201; 301; 401) according to claim 1, characterized in that one of the framework bodies (2, 3, 4; 102, 103, 104; 202, 203, 204; 380, 381, 382, 383) the two fixed bearings (3E, 4C, 4D) of the associated rollers (5, 6, 7, 305, 306, 307) and the other of the two frame bodies (2, 3, 4, 102, 103, 104, 202, 203, 204 380, 381, 382, 383) comprises the movable bearings (2C, 2D, 3C, 3D) of the two associated rollers (5, 6, 7, 305, 306, 307). Roll stand (1; 101; 201; 301; 401) for receiving rolling forces of at least three bearing seats (2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, respectively) receiving rolling force on both sides. 383A, 383B) of the rolling mill stand (1; 101; 201; 301; 401), wherein at least the bearing seats (2A, 2B, 3A, 3B, 4A, 4B; 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of a roller (5, 6, 7; 305, 306, 307) each in a frame body (2, 3, 4; 102, 103, 104, 202, 203, 204, 380, 381, 382, 383) together with a bearing seat (2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of another roller (5 , 6, 7; 305, 306, 307), characterized in that the two framework bodies (102, 103, 104, 202, 203, 204) having a force element (150, 151, 152, 250, 251, 252) acting exclusively between the two framework bodies (102, 103, 104, 202, 203, 204) and / or with a force element (150, 151, 152, 250, 251, 252) arranged radially outside and axially within the rollers (5, 6, 7), and / or that the force element (150, 151, 152; 250, 251, 252) is effective parallel to the rolling axis. Roll stand (1; 101; 201; 301; 401) for receiving rolling forces of at least three bearing seats (2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, respectively) receiving rolling force on both sides. 383A, 383B) of the rolling mill stand (1; 101; 201; 301; 401), wherein at least the bearing seats (2A, 2B, 3A, 3B, 4A, 4B; 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of a roll are each common in a framework body (2, 3, 4, 102, 103, 104, 202, 203, 204, 380, 381, 382, 383) with a bearing seat (2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of another roller (5, 6, 7; 305, 306, 307) , characterized in that all the frame bodies (2, 3, 4, 102, 103, 104, 202, 203, 204, 380, 381, 382, 383) form-fittingly form the rolling stand (1, 101, 201, 301, 401). Roll stand (1; 101; 201; 301; 401) according to claim 3 or 4, characterized in that the force element (150, 151, 152; 250, 251, 252) is a screw (155; 255) or a tie rod. Roll stand (1; 101; 201; 301; 401) according to one of claims 3 to 5, characterized in that the force element (150, 151, 152; 250, 251, 252) is axially in the region of a caliber base (170) of the rolls ( 5, 6, 7, 305, 306, 307). Rolling stand (1; 101; 201; 301; 401) according to one of Claims 3 to 6, characterized in that the force element (150, 151, 152; 250, 251, 252) is arranged axially in the region of a rolling recess of the roll stand (101; 301) for a roller driving pin of the rollers (5, 6, 7; 305, 306, 307). Rolling stand (1; 101; 201; 301; 401) for receiving rolling forces of at least three bearing seats (2A, 2B, 3A, 3B, 4A) receiving rolling forces on both sides in each case. 4B; 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of the rolling stand (1; 101; 201; 301; 401) (5,6,7; 305,306,307), wherein at least the bearing seats of a Roller (5, 6, 7, 305, 306, 307) in each case in a framework body (2, 3, 4, 102, 103, 104, 202, 203, 204, 380, 381, 382, 383) together with a bearing seat ( 2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of another roller (5, 6, 7; 305, 306, 307), characterized that the two frame bodies (2, 3, 4; 102, 103, 104; 202, 203, 204; 380, 381, 382, 383) via a contact surface (160, 161; 277, 278, 279) contact each other. Roll stand (1; 101; 201; 301; 401) for receiving rolling forces of at least three bearing seats (2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, respectively) receiving rolling force on both sides. 383A, 383B) of the rolling mill stand (1; 101; 201; 301; 401), wherein at least the bearing seats (2A, 2B, 3A, 3B, 4A, 4B; 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of a roller (5, 6, 7; 305, 306, 307) each in a frame body (2, 3, 4; 102, 103, 104, 202, 203, 204; 380, 381, 382, 383) are arranged together with a bearing seat of another roller, characterized in that the two framework bodies (2, 3, 4; 102, 103, 104; 202, 203, 204; 381, 382, 383) are directly connected via a contact surface (160, 161; 277, 278, 279). Roll stand (1; 101; 201; 301; 401) according to claim 9, characterized in that the connection is via a hinge (167, 168) or via a releasable connection, such as a screw connection (153; 253, 275, 276)) , he follows. Roll stand (1; 101; 201; 301; 401) according to one of claims 8 to 10, characterized in that the contact surface (160, 161; 277, 278, 279) is arranged in a low-force field. Roll stand (1; 101; 201; 301; 401) for receiving rolling forces of at least three bearing seats (2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, respectively) receiving rolling force on both sides. 383A, 383B) of the rolling mill stand (1; 101; 201; 301; 401), wherein at least the bearing seats (2A, 2B, 3A, 3B, 4A, 4B; 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of a roller (5, 6, 7, 305, 306, 307) each in a framework body (2, 3, 4, 102, 103, 104, 202, 203, 204, 380, 381, 382, 383) together with a bearing seat (2A, 2B, 3A, 3B, 4A, 4B; 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of another roller (5, 6, 7; 305, 306, 307) are arranged, characterized in that the two framework bodies (2, 3, 4; 102, 103, 104; 202, 203, 204; 380, 381, 382, 383) are in a rolling force poor area of the roll stand (1, 101, 201, 301; 401) are interconnected. Rolling stand (1; 101; 201; 301; 401) according to claim 10, that the two framework bodies (2, 3, 4; 102, 103, 104; 202, 203, 204; 380, 381, 382, 383) are mounted on one of the Roll caliber opposite side of the roller (5, 6, 7, 305, 306, 307) are interconnected. Roll stand (1; 101; 201; 301; 401) for receiving rolling forces of at least three bearing seats (2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, respectively) receiving rolling force on both sides. 383A, 383B) of the rolling mill stand (1; 101; 201; 301; 401), wherein at least the bearing seats (2A, 2B, 3A, 3B, 4A, 4B; 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of a roller (5, 6, 7; 305, 306, 307) each in a frame body (2, 3, 4; 102, 103, 104, 202, 203, 204, 380, 381, 382, 383) together with a bearing seat (2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of another roller (5 , 6, 7; 305, 306, 307) are arranged, characterized in that the two framework bodies (102, 103, 104) in a guide (165, 166) are mutually displaceable. Roll stand (1; 101; 201; 301; 401) according to claim 14, characterized in that the guide (165, 166) comprises two lateral framework plates. Roll stand (1; 101; 201; 301; 401) according to claim 14, characterized in that the guide (165, 166) directly between the bearing seats (2A, 2B, 3A, 3B, 4A, 4B), for example as a hinge (167 , 168), is effective. Roll stand (1; 101; 201; 301; 401) for receiving rolling forces of at least three bearing seats of the rolling stand (1; 101; 201; 301; 401), wherein at least the bearing seats (2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) are mounted on said rollers (5, 6, 7; 305, 306, 307) ) of a roller (5, 6, 7, 305, 306, 307) each in a scaffold body (2, 3, 4, 102, 103, 104, 202, 203, 204, 380, 381, 382, 383) together with a Bearing seat (2A, 2B, 3A, 3B, 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) of another roller (5, 6, 7, 305, 306, 307) are thereby disposed characterized in that the bearing seats (2A, 2B, 3A, 3B, 4A, 4B; 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B), in particular at least one of the bearing seats (2A, 2B, 3A, 3B 4A, 4B, 380A, 380B, 381A, 381B, 382A, 382B, 383A, 383B) into the associated roller (5, 6, 7, 305, 306, 307).

Images