EP3941653A1

EP3941653A1 - Device comprising a housing and a rotary element mounted in the housing such that it be rotated and axially shifted

Info

Publication number: EP3941653A1
Application number: EP20710532.1A
Authority: EP
Inventors: Walter Grabner; Friedrich Moser
Original assignee: Primetals Technologies Austria GmbH
Current assignee: Primetals Technologies Austria GmbH
Priority date: 2019-03-21
Filing date: 2020-03-16
Publication date: 2022-01-26
Also published as: CN111715695A; AU2020243015A1; JP2022525949A; MX2021011343A; BR112021017544A2; JP7317985B2; SA521430359B1; EP3711874A1; CA3133386A1; KR20210143815A; US11779970B2; US20220184677A1; WO2020187837A1; CN213728547U; TWM607007U; TW202039110A

Abstract

The invention relates to a device comprising a housing (2) and a rotary element (4) mounted in the housing (2) such that it can be rotated and axially shifted (14). In order to reduce bearing loads in the rotary element (4), in particular with eccentric loading of the rotary element (4), the device provides at least one first support surface (6) on an end side (8) of the rotary element (4) and a second support surface (10) axially opposite (40) said first support surface (6) on the housing (2). The rotary element (4) is then mounted in the housing (2) in such a way that, with the impact of an axial force (12) on the rotary element (4), the axial shiftability (14) of the rotary element (4) is limited by the support (16) of the first support surface (6) on the second support surface (10).

Description

description

Device with a housing and a rotating element in the housing rotatably and axially displaceably mounted

The invention relates to a device with a housing and a rotatable and axially displaceable mounted rotary element in the housing.

In the manufacture of metal strips, these are conveyed by means of metal strip conveyor devices, for example roller tables, to processing machines - for example reel devices - where they are wound up.

It is necessary to subject the metal strips to a lateral guide.

This is especially necessary before starting winding, in order to keep the offset of the individual turns on the wound collar as low as possible in order to achieve a uniform side surface of the wound collar.

Devices for lateral guidance are called, for example, guide rulers or inlet rulers.

The above-mentioned device with housing and rotary element can be used, for example, as part of such a lateral guide or guide ruler / infeed ruler in a roller table section in a rolling mill, in particular in the reel infeed of the reel device in a hot strip mill - for safe lateral guidance of a rolled product or hot strip .

There is then, for example, on or on the rotary element a shear element, here then a wear disk; The rotating element and wear plate are - rotatably - arranged in the side guide of the roller table section or in the guide ruler / infeed ruler, so that the rolled product or hot strip - when transported over rollers of the roller table section - can be guided (laterally) by means of the wear plate.

Such wear disks - in the lateral guidance of a hot strip at the reel infeed of a hot strip mill - are known for example as "Eco Slide Discs" from Primetals Technologies.

In the case of a hot strip mill equipped with such "Eco Slide Discs" or a roller conveyor at the reel inlet, the reel inlet rulers of the hot wide strip mill are equipped with the rotatable "Eco Slide Discs" attached to a maintenance-free and robust gear bar.

These wear disks arranged vertically, to the side of the roller table rollers can or will be rotated automatically and synchronously by a desired angle after an adjustable number of guided belts - because arranged on the rotatably mounted rotating element.

Unlike the commonly used "solid"

Wear plates, in which the band cut is always made at the same point on the wear plate, the wear is evenly distributed over the entire circular ring surface of the Eco Slide Discs. This extends the service life of the wear parts and thus the continuous operating time of the run-in rulers from a few days beforehand to up to several months (see also EP 3 049 198 B1).

Due to the cyclical rotation of the wear disks or Eco Slide Discs, only small build-ups can be locally caused by the strip edge Abrasion occurs, which can be sanded off by the subsequent belts like the.

Due to this self-cleaning effect of the wear disks or Eco Slide Disks, the manual cleaning process required on the wear strips to avoid defects in the surface of the belt caused by falling, adhering belt edge melts can be dispensed with with certain belt qualities.

Results so far have shown that it is sufficient to turn the wear disks or Eco Slide Discs over or replace them with new wear disks or Eco Slide Disks after an average of four to sixteen weeks of maintenance-free operation as part of a planned repair shutdown. Repair welding and grinding work otherwise to be carried out on the expensive wear plates / strips is no longer necessary.

Furthermore, it has also been shown that when such wear disks or eco slide disks, i.e. When guiding the (hot) strip, high eccentric (i.e. at a radial distance from the axis of rotation of the wear disc / Eco Slide Disc) axial forces (through the guided strip) attack the wear plate or Eco Slide Disc.

If these axial forces are applied off-center, they also generate tilting moments at the same time as the axial load / force, which means that the bearing distances between the bearings on the (rotatably mounted) wear disc or Eco Slide Disc are correspondingly large or the axial loads that can be absorbed are physically limited. Increased wear on the bearings of the wear disc / Eco Slide Disc can also occur.

Usual storage concepts for such wear disks / Eco Slide Disc are, especially among those there for the wear disks Beneath the prevailing limited space, in this case only applicable to a limited extent or are subject to the disadvantages mentioned.

One object of the invention is to provide a device with a rotatably mounted rotary element which prevents the disadvantages of the prior art, in particular which is less disadvantageous in the case of, in particular off-center, acting axial forces.

This object is achieved by a device with a housing and a rotatable and axially displaceable bar mounted rotary element in the housing with the features according to the independent claim. Advantageous developments of the invention are the subject matter of the dependent claims and the following description.

Terms such as "axial" or "radial" are to be understood in relation to an axis of rotation of the rotatably and axially displaceably mounted Dre helement. Terms like "horizontal" or

"Horizontal" or "vertical" or "vertical" are understood according to common understanding.

The device with a housing and a rotating element mounted rotatably and axially displaceably in the housing provides at least a first support surface on one end face of the rotating element and a second support surface on the housing axially opposite this support surface.

The rotary element, for example a shaft, is then mounted in the housing in such a way that when an axial force acts on the rotary element, such as a guide force when guiding belts, the axial displaceability of the rotary element is limited by the support of the first support surface on the second support surface . As a housing, add-on elements can also be understood and / or have those in which add-on elements the Dre helement is mounted. The housing can for example also be a guide support and / or have one in which the rotary element is mounted.

In this context, a “support surface” can be understood to be a surface which is suitable and, in addition, is also intended for making support contact with another (correspondingly suitable and provided) “support surface”.

The term “end face” (of the rotary element) can be understood to mean a surface on the rotary element that is essentially perpendicular to the axis of rotation of the rotary element, for example a side cheek on a shaft.

That is, the device provides that the axial displaceability of the rotary element is limited or is by the - in the device as an axial distance between the first end support surface on the rotary element and the second axially opposite support surface on the housing realized / permitted - axial play from rotary element to housing ("game" ie the manufacturing and application-related freedom of movement in which a mechanical component can move freely during or after assembly against another or with another component of the component group or functional unit).

"Other component-technically possible games" within the device, such as a bearing play of the rotary element or an engagement play of the rotary element with another component in a handle with the rotary element, are matched accordingly or greater than the axial displaceability / the axial play of Rotary element to housing, - so that the axial displaceability of the rotary element is limited or is by the - in the device as an axial Ab stood between the first end-face support surface on the Dre helement and the second axially opposite support surface on the housing realized / permitted - axial play from rotary element to housing.

If an axial load then acts on the rotary element, the rotary element can or will move axially until the first support surface on the rotary element contacts the second support surface on the housing - and so the first support surface on the rotary element is on the second support surface on the housing supports. The rotary element thus experiences a support, in particular a special axial support and / or a support against tilting.

In a different and combined form / clearly expressed, because of the limitation of the axial displaceability of the rotary element (first support surface) by the housing (second support surface), the rotary element (under axial load and axial displacement) with its first end-face support surface on the second axially opposite housing support surface prop up.

This - direct - support of the rotary element - on the support surfaces from - relieves the (actual) bearings of the rotary element - with regard to the axial load, for example axial bearings; Forces and moments are absorbed by the support.

In particular in the case of off-center loads acting on the rotary element, which in addition to the axial load also lead to tilting moments in the rotary element (and which would usually have to be absorbed by the bearing of the rotary element) - and thus in an increased bearing load in the position- In this way, bearing forces and / or bearing torques can be limited or reduced in the device (if force is absorbed / absorbed / dissipated in the device through the (direct) support surface contact).

As a result, with or by means of the device it is also possible to implement conventional bearing concepts, in particular with smaller bearings and / or smaller bearing support spacings.

It is provided that the rotary element is a gear wheel (or the combination of a shaft and a gear wheel arranged on the shaft (if necessary formed in one piece or also placed on the shaft as a separate component) egg nes mechanical transmission, in particular a form-locking (or non-positive / frictional or electrical) transmission, and / or is connected to a transmission, and / or is a component of a gear wheel of a mechanical transmission.

For example, in the case of a worm gear, the rotary element can be a worm wheel. The casing would be - in this case - a snail casing. The rotary element or the worm wheel would - in this case - be in engagement with a worm (and can be rotated by it). A side wall of the shaft could be used as the first support surface

and / or the worm wheel, for example in the radial outer region of the worm wheel (toothed ring); A gear base of the worm gear housing served as the second support surface.

It is also expedient to store the rotary element in the housing using at least one bearing bush (if necessary here with one-sided mounting of the rotary element) - or several bearing bushes. The axial bearing play in the or the bearing bushes must be matched accordingly or set larger than the axial displaceability / the axial play of the rotary element to the housing from the axial distance between the two support surfaces - so that the axial displaceability of the rotary element is limited or is limited by the - in the Device as an axial distance between the first stirnsei term support surface on the rotary element and the second axially opposite support surface on the housing realized

te / approved - axial play from rotating element to housing.

Such a bearing bush or such bearing bushes can then also have collars that can be absorbed by axial forces. These collars could then be essentially free of axial load or be made free of axial load by the device.

It is provided that a wear element, such as a disk, in particular a wear disk, for example an Eco Slide Disc, is arranged on the rotary element. The wear element is suitable for the lateral guidance of a metal strip, for example in a device for lateral guidance of a metal strip.

Such a wear element or such a washer can - as a separate and so replaceable component - be attached to the Drehele element, for example (via a centered seat there) be screwed; such a disk can also be formed in one piece with the rotary element. In short, Drehe element, for example a shaft or a gear wheel or a shaft with a gear wheel, and disk are two parts or made from one piece.

It can expediently be provided that the rotary element is mounted in the housing in such a way and / or that the rotary element has a shape such that when there is a support contact between the first support surface and the two- th support surface forms a surface contact, whereby the support can be improved. For example, the mounting of the rotary element could be designed in such a way that the first support surface and the second support surface are designed as parallel, plane surfaces.

Furthermore, it can also be provided that the first support surface is designed essentially in the shape of a circular ring, for example in the radial outer region of a toothed ring that forms the rotating element. The possible - circular - surface contact between the first and the second support surface enables the support to be further improved.

The first support surface can also be essentially circular, possibly with one-sided mounting of the rotating element, or be designed with a different surface shape.

According to a preferred development it is provided that the device is part of a gear arrangement.

Here, for example, the rotary element can be shaft and gear wheel at the same time, i.e. in one piece, to which a wear disc, for example an Eco Slide Disc, is attached, in particular attached via a centering seat.

Another gear wheel can then be connected to the rotary element or the gear wheel for the purpose of transferring motion.

Such a gear arrangement - with the device - can be implemented, for example, as a gear transmission, such as a worm gear. In a further development it is provided that the device in a device for the lateral guidance of a metal strip, briefly only lateral guidance, such as an infeed line al / guide ruler, in particular a reel infeed ruler, for a roller table section in a rolling mill, in particular for a roller table section in a reel inlet in a hot strip mill.

In other words, the device and / or the device in which the device is installed can in particular be used for the lateral guidance of a metal strip, in particular in the case of a roller table section in a rolling mill.

For this purpose, for example, the side guide can have a gear bar to which the device is attached.

It is particularly useful if several of the Vorrich device are installed in such a side guide or such a Ge gear bar.

The device according to the invention is thus, for example, part of a device for the lateral guidance of a, for example se via a metal belt conveyor - for example a roller table section of a rolling mill - running, metal belt.

Then there is a device for the lateral guidance of a Me tallbandes with at least one device with a housing (2) and in the housing (2) rotatably and axially displaceable bar (14) mounted rotary element (4), the device with a housing (2) and one in the housing (2) rotatably and axially displaceably (14) mounted rotary element (4) as in the present description and claims 1 to 7 is executed. The device according to the invention is therefore suitable to be installed or installed in a device for the lateral guidance of a metal belt conveyor device - for example a Rollgangab section of a rolling train - running metal strip.

In a device for the lateral guidance of a metal band, the available space is usually very limited. Since the possible bearing support distances are also limited for a rotary element, since the installation space for the housing has only a limited width. Correspondingly, when forces are introduced into the housing when guiding the metal strip onto a wear element - as shown in EP2853315A1, for example - there is the problem that large management forces - for example 60 to 80 kilonewtons kN - and possibly the resulting large tilting moments have unfavorable effects on the mounting of the rotary element as described above. With the construction according to the invention, forces are not only introduced via bearings, but mainly directly into the housing - and subsequently the transmission beam supporting the housing - which is why the load on bearings and with small bearing support distances associated problems are reduced or avoided. As a result, the solution according to the invention makes it possible to pass on the forces via the rotary element under the restricted space and to overcome the problems.

In order to be able to carry out the rotation of the rotary element, in particular a controlled rotation in several (defined) rotary positions, it is advisable to provide a Verstellmit tel, which with the rotary element, in particular (in the case of several built-in devices) with all these Dre helementen, is in at least a non-positive connection, whereby when the adjusting means is actuated, the rotary element, in particular all rotary elements, simultaneously and / or syn- chronologically, in particular in a controlled manner in the defined rotational positions.

For example, if the device or devices are each part of a worm gear, i. E. the (each) rotary element is then the worm wheel, so the adjusting means can be a (common) worm which engages with the worm wheel (rotary element) or with the worm gear. By actuating the or this one worm, all worm gears can then be actuated simultaneously / synchronously, especially in the case of several devices / worm gears.

Furthermore, a roller table section can then also be provided in a rolling mill, in particular in the case of a reel infeed in a hot strip mill, with rollers transporting a rolled product, in particular a hot strip, in which these - previously described / described - lateral guide (s) - there for the lateral guidance of a The rolled product, especially a hot strip, transported through the rollers is / are built.

Furthermore, it can be expedient to implement the rotary element in a reinforced manner in the area of the first support surface, for example by means of corresponding material thickenings.

It can also be provided to treat the first and / or second support surface, for example hardening, coating and the like. Ä.

The previously given description of advantageous Ausgestaltun conditions of the invention contains numerous features, some of which are reproduced in the individual subclaims summarized in several. However, these features can expediently also be viewed individually and combined into meaningful further combinations. In particular are these features can be combined individually and in any suitable combination with the roll stand according to the invention.

Even if in the description or in the claims some terms are used in the singular or in conjunction with a numerical word, the scope of the invention for these terms should not be restricted to the singular or the respective numerical word. Furthermore, the words "a" or "an" are not to be understood as numerals, but rather as indefinite articles.

The above-described properties, features and advantages of the invention and the manner in which they are achieved will become clearer and more clearly understandable in connection with the following description of the exemplary embodiment (s) of the invention, which are in connection with the drawings are explained in more detail. The embodiment (s) serves to explain the invention and does not limit the invention to combinations of features specified therein, not even with regard to functional features. In addition, suitable features of each exemplary embodiment can also be considered explicitly in isolation, removed from one exemplary embodiment, introduced into another exemplary embodiment to supplement it, and combined with any of the claims.

Show it:

1 shows a side guide with rotatable wear disks

(Eco Slide Disc) at a reel infeed in a hot strip mill;

2 shows a worm gear for actuating / rotating a

Wear disc (Eco Slide Disc). 1 shows part of a lateral guide 38 or a guide ruler / inlet ruler 38 at a reel inlet 34 of a reel device in a hot strip mill 28.

The hot strip 24 - in the transport direction 42 - is fed to a reel via a (essentially horizontally aligned) roller conveyor 26 at the reel inlet 34.

As FIG 1 shows, there are in the lateral guide 38 or in the guide ruler / inlet ruler 38 of the reel inlet 34, in the following briefly only the reel inlet ruler 34, several Schlei ßelemente 22, in the form of rotatable (round) wear plates 22, along the roller table / - section 26 of the reel inlet 34 arranged in a row, the respective end face / base surface 44 (visible in FIG. 1) the wear surface 44 of the respective

Wear element 22 or the respective wear plate 22 bil det.

The wear plates 22 are, as FIG 1 also shows, ver tically arranged in a largely round recess 46 of Haspelein running ruler 38 and approximately parallel to / with the Haspelein running ruler 38 or parallel to the side surface 48 facing the roller table 26.

Thus, along the reel inlet ruler 38 forms an approximately planar (depending on the state of wear), vertically aligned guide plane 50 at the reel inlet ruler 38 for the hot strip 24 transported on the roller table / section 26 and to be lead; the roller table / section 26 is - perpendicular to it - aligned essentially horizontally.

The essentially vertical (parallel to the guide plane 50) aligned wear disks 22 each have a central ne axis of rotation 52, about which central axis of rotation 52 the respective wear plate 22 can be rotated in a controlled manner by means of a worm gear 18 (in defined rotational positions) (cf.

FIG. 2), which also ensures that the guide plane 50 is maintained in all rotational positions of the wear disks 22.

The hot strip 24 transported horizontally over rollers 36 of the roller table 26 can thus always be guided safely (to the side) by means of these wear disks.

2 illustrates (by way of example for one of the several with means of the worm gear 18 rotatable wear disks 22 of the reel inlet ruler 38) the arrangement of a - rotatable - wear plate 22 in the reel inlet ruler 38 in detail.

As FIG 2 shows, the wear plate 22 sits - centered via a centering seat 54 - on a worm wheel 4 "of its worm gear" 18, which worm wheel 4 in one

Worm housing 2, which itself is part of a gear bar 56, which in turn forms part of the reel inlet ruler 38, is received / supported.

To support the worm wheel 4, a shaft 58 is integrated in the worm wheel 4 - in one piece with the worm wheel 4, which shaft 58 or which worm wheel 4 is located in the worm housing 2 or in the gear bar by means of two (bearing) bushings 20 seated on shaft extensions 60 56 is stored.

On the outer circumference 62 of the worm wheel 4 there is the toothing 64, which is in engagement 32 with the worm 30 or its toothing 66. By means of such a worm gear 18 or this

Worm 30, the worm wheel 4 can thus be rotated in a controlled manner into defined rotary positions.

The worm 30 is designed as a "long" spindle having the worm toothing 66 - and is arranged essentially parallel to the reel inlet ruler 38, for example extending over its length, whereby it "runs through" the worm housing 2 of the several worm gears 18, not only with it the shown worm wheel 4 of the worm gear 18 shown is in engagement 32, but with the several in series longitudinally arranged in the Haspelein running ruler 38 worm wheels 4 in engagement 32.

Thus, when the (one) worm 30 is actuated, the multiple worm wheels 4 can be rotated synchronously / simultaneously in a defined manner into the desired rotational position.

As further FIG. 2 shows, the worm wheel 4 forms, on its end face 8 facing away from the roller table 26, a radially outer, annular, planar first support surface 6 oriented perpendicular to the axis of rotation 52 of the worm wheel 4.

This annular support surface 6 on the worm wheel 4 - axially opposite 40 - is a corresponding second support surface 10 aligned parallel thereto on the worm housing wall 68 of the worm housing 2.

On its end face 70 facing roller table 22, worm wheel 4 forms a further, in this case for example planar, end face 72 oriented perpendicular to axis of rotation 52 of worm wheel 4, which also has a corresponding further worm housing wall / surface oriented parallel thereto 74 opposite. The worm wheel 4 is then - clearly expressed with its first end-face support surface 6 on the one hand and its further end face 72 on the other hand in the "pincer grip" between the second support surface 10 of the worm housing 2 on the one hand and the further worm housing wall surface 74 of the worm housing 2 on the other hand - in the snow Cken housing 2 added that in the "pliers" or there "in between" a definable axial play 76 is formed.

That is, the worm wheel 4 is within the "pliers" - because of the limitation by the second support surface 10 of the worm housing 2 (here the axial displacement 14 of the first support surface 6 is limited on the worm wheel 4) and the white direct worm housing wall surface 74 of the worm housing 2 (here the axial displacement 14 of the other end face 72 on the worm wheel 4 is limited) - axially displaceable at most as defined.

The other games within the worm gear 18, that is, the play of the worm wheel bearing 78 and the play 80 worm 30 / worm wheel 4 are precisely matched to this or are greater.

As a result - with axial load 12 on the wear disk 22 - the axial displaceability 14 of the worm wheel 4 (away from the roller table 26) is limited by the - in the worm gear 18 as an axial distance between the first end-face support surface 6 on the worm wheel 4 and the two th axially opposite 40 support surface 10 on the worm housing 2 realized / permitted - axial play 76 from worm wheel 4 to worm housing 2.

Acts as shown in FIG. 2, then an eccentric, axial load 12 on the wear plate 22 and so on Worm wheel 4, the worm wheel 4 can or will move axially 14 (away from the roller table 26) until the first support surface 6 on the worm wheel 4 contacts the second support surface 10 on the worm housing 2 - and so the first support surface 6 on the worm wheel 4 and the second Abstützflä surface 10 on the worm housing mutually support 16. The worm wheel 4 thus experiences an axial support 16 and also a support 16 against tilting.

In other words, the worm wheel 4 then supports itself (under axial load 12 and axial displacement 14) with its first end-face support surface 6 on the second axially opposite worm housing support surface 10.

This - direct - support of the worm wheel 4 - via the support surfaces 6, 10 - in the worm housing 2 relieves the (actual) bearings of the worm wheel 4, i.e. the bearing bushes 20.

In particular in the case of loads acting off-center on the wear plate 22 and thus acting on the worm wheel 4 (see FIG. 2, there both (axial force 82 and tilting moment

84), which in addition to the axial load 82 also lead to tilting moments 84 in the worm wheel 4, in the worm gear 18 the bearing forces and / or bearing torques on the bearing bushes 20 are limited or reduced (when the force is absorbed / absorbed / dissipated through the (direct th) support surface contact 16).

Although the invention is illustrated and described in more detail by the preferred exemplary embodiment (s), the invention is not restricted by the disclosed example (s) and other variations may be used here. can be derived without departing from the scope of the invention.

List of reference symbols

2 casing, worm casing

4 rotary element, gear wheel, worm wheel

6 first support surface

8 face

10 second support surface

12 axial force / load

14 axial displaceability / displacement

16 Support, support contact

18 (worm) gears

20 bearing bush

22 Wear element, wear plate

24 Rolled product, metal strip, hot strip

26 Roller table / section

28 Rolling mill, hot strip mill

30 adjustment means, worm

32 frictional connection, (tooth) engagement

34 Reel inlet

36 roles

38 Lateral guidance, lateral guidance, guide ruler, (reel) infeed ruler

40 axially opposite one another

42 Direction of transport

44 Front / base surface, wear surface

46 recess

48 side face

50 management level

52 axis of rotation

54 centering seat

56 transmission beam

58 wave 60 wave process

62 outer circumference

64 toothing (worm wheel)

66 toothing (worm)

68 Auger housing wall

70 face

72 more face

74 further screw housing wall / surface

76 axial play

78 Worm gear bearing clearance

80 Worm / worm wheel clearance or tooth meshing 82 Axial force, axial load

84 overturning moment

Claims

1. Device with a housing (2) and one in the housing (2) rotatably and axially displaceable (14) mounted Drehele element (4),

marked by

at least one first support surface (6) on one end face (8) of the rotary element (4) and one of this first support surface (6) axially opposite (40) second support surface (10) on the housing (2),

wherein the rotary element (4) is mounted in the housing (2) such that when an axial force (12) acts on the rotary element (4), the axial displaceability (14) of the rotary element (4) through the support (16) of the the first support surface (6) is limited to the second support surface (10),

wherein a wear element (22) for lateral guidance

a metal band is arranged on the rotary element (4), and wherein the rotary element (4)

- is connected to a transmission, and / or

- A component of a gear wheel of a mechanical gearbox bes (18) is, and / or

- a gear wheel of a mechanical transmission (18),

is.

2. Device according to claim 1,

characterized in that

the mechanical transmission (18) is a form-fitting or force-fitting or frictional or electrical transmission (18).

3. Device according to claim 1 or claim 2,

characterized in that

the rotating element (4) is a worm wheel.

4. Device according to one of the preceding claims, characterized in that

the rotary element (4) is mounted in the housing (2) using at least one La gerbüchse (20).

5. Device according to one of the preceding claims, characterized in that

the wear element (22) is a wear disk (22) which is arranged on the rotary element (4), in particular fastened to the rotary element (4) or formed in one piece with the rotary element (4).

6. Device according to one of the preceding claims, characterized in that

the first support surface (6) is essentially annular or circular.

7. Device according to one of the preceding claims, characterized in that

the rotary element (4) is mounted in the housing (2) in such a way that a surface contact is formed in the event of a support contact (16) between the first support surface (6) and the second support surface (10).

8. Device for the lateral guidance (38) of a metal strip (24), in particular for a roller table section (26) in a rolling train (28), characterized by

At least one device according to one of the preceding claims, in particular a plurality of the devices.

9. Device for the lateral guidance (38) of a metal strip (24) according to the preceding claim,

marked by

a transmission beam (56) to which the device, in particular the special devices, is / are attached.

10. Device for lateral guidance (38) of a Metallban of (24) according to claim 8 or claim 9,

marked by

an adjusting means (30) which is in at least a non-positive connection (32) with the rotary element (4), in particular with several rotary elements (4), whereby the rotary element (4), in particular the several rotary elements, when actuated (4) can be rotated simultaneously and / or synchronously.

11. Device for lateral guidance (38) of a Metallban of (24) according to the preceding claim,

characterized in that

the adjusting means (30) is a worm and the rotary element (4) is a worm wheel, in particular the several rotary elements (4) are worm wheels.

12. Use of a device according to one of the preceding claims for the lateral guidance (38) of a metal strip (24), in particular in a roller table section (26) in a rolling train (28).

13. Roller table section (26) in a rolling train (28), in particular special in a reel inlet (34) in a hot strip mill (28), with a rolled product (24), in particular a hot strip (24), transporting rollers (36),

marked by

a device for lateral guidance (38) of a metal strip (24) according to one of the preceding claims 8 to 11 for lateral guidance (38) of a rolled product (24) transported by the rollers (36), in particular a hot strip