EP2418319B1 - Shaking device for reciprocatingly moving a roll along an axis thereof - Google Patents

Description

The invention relates to a roller with a shaking device for reciprocating the roller along an axis thereof, in particular a roller for a machine for producing a fibrous web, in particular a paper, cardboard or packaging paper web, wherein the shaker a first, with the roller eccentric drive connected in the direction of the roll axis and a second eccentric drive connected to the roll in the direction of the roll axis, the two eccentric drives being driven by at least one motor, preferably two motors, the two eccentric drives being mounted on or in a common and movable one or movable device are mounted, and wherein the roller and the device are connected by means of at least one at least one-part Schüttelstange medium or directly to each other.

Such a shaking device is for example from the document EP 1 624 102 B1 known.

This largely reaction-free working shaking is based on directly driven mass pairs by means of highly dynamic three-phase drives with angular tracking control, the mass pairs are arranged in a hydrostatically mounted device, such as a carriage, a frame or a frame. However, the two mass pairs of such a shaking device can also be driven by means of a drive device having only one drive motor. In addition, instead of an electric motor and a hydraulic motor can be used.

By adjusting the angle between the two mass pairs from 0 to 180 ° (in the direction of rotation) can act on a shaking bar mass force be adjusted continuously. About the rotational speed of the two mass pairs, the frequency can also be adjusted continuously.

The transmission of the rotational energy generated by means of the shaking on an exemplary breast roll of a machine for producing a fibrous web. The unit "carriage with breast roll" is a system oscillating in a horizontal direction - with a common mechanical zero point.

• Hochfrequente Schüttelung

This shaker also has the following properties:

• High-frequency shaking

• Steuerbares Reißlängenverhältnis

Even at machine speeds of up to 1,200 m / min, the formation in the fibrous web to be produced can be significantly improved.

• Controllable breaking length ratio

By adjusting the stroke and frequency of the shaking, the breaking length ratio in the fibrous web to be produced can be freely selected within wide limits.

• Beste Formation in der herzustellenden Faserstoffbahn durch eine gleichmäßige Faserverteilung bei einer deutlichen Verbesserung der Papierqualität - mit Vorteilen bei der Weiterverarbeitung, beim Streichen, Imprägnieren und Bedrucken der herzustellenden Faserstoffbahn.
• Verbesserte Dimensionsstabilität durch eine gezielte Faserausrichtung in der herzustellenden Faserstoffbahn.
• Reduzierte Instandhaltungskosten durch eine geringe Beanspruchung und einen reduzierten Verschleiß.

There is thus the following general benefit for the operator of the shaking device:

• Best formation in the fibrous web to be produced by a uniform fiber distribution with a significant improvement in the paper quality - with advantages in the further processing, when painting, impregnating and printing the fibrous web to be produced.
• Improved dimensional stability through targeted fiber orientation in the fibrous web to be produced.
• Reduced maintenance costs due to low stress and reduced wear.

• Signifikante Verbesserung der Formation in der herzustellenden Faserstoffbahn.
• Reduzierung des Reißlängenverhältnisses in der herzustellenden Faserstoffbahn.
• Verbesserung von weiteren Qualitätsparametern, wie Berstfestigkeit, Stauchwiderstand (SCT-CD), etc. in der herzustellenden Faserstoffbahn.
• Keine Reaktionskräfte. Das Fundament muss nur das Eigengewicht der Schüttelvorrichtung tragen, keine Übertragung von störenden Schwingungen auf weitere Partien der Maschine, wie beispielsweise auf den Stoffauflauf und die Siebpartie.
• Die Ausführung ist kompakt, robust und gekapselt. Die Einrichtung bzw. der Schlitten ist vorzugsweise hydrostatisch gelagert, die Schmierung wird systemintegriert nach dem Umlaufprinzip sichergestellt.

And the specific benefit to the shaker operator is:

• Significant improvement of the formation in the fibrous web to be produced.
• Reduction of the breaking length ratio in the fibrous web to be produced.
• Improvement of further quality parameters, such as bursting strength, compression resistance (SCT-CD), etc. in the fibrous web to be produced.
• No reaction forces. The foundation must only bear the weight of the shaker, no transmission of disturbing vibrations to other parts of the machine, such as on the headbox and the wire section.
• The design is compact, robust and enclosed. The device or the carriage is preferably stored hydrostatically, the lubrication system-integrated ensures according to the circulation principle.

However, a disadvantage of this known shaking device are the rigid, possibly also articulated connections between the roller to be moved and the movable device which supports the two eccentric drives. As is known to those skilled in the art, the rigid connections are subject to deflections, vibrations, wear and the like. Also, rigid connections have, for example, high internal stresses and loads and cause high lateral forces both in the bearing units of the movable device and at the other end, namely on the roller to be moved. Furthermore, they require high and only with great time achievable alignment accuracies. Premature failure of the bearings, especially the main bearings of the shaker and / or the breast roller bearings is a regular consequence.

It is therefore an object of the invention to improve a shaking device of the type mentioned in such a way that the mentioned disadvantages of the prior art are largely reduced, preferably even completely avoided. In particular, should be done by the transmission means, in particular the shaking bar largely only an axial force transmission and the transmission of adverse lateral forces should be largely avoided. Moreover, should the previous requirement of a high alignment accuracy, especially in a rigid connection can be significantly reduced.

This object is achieved according to the invention in a roller with a shaking device of the type mentioned above in that the connection between the roller and the device comprises at least one temporarily fixable, in particular clampable ball joint.

The object of the invention is completely solved in this way.

The connection according to the invention between the roller to be moved and the movable device by means of at least one temporarily fixable in particular clampable ball joint ensures a largely axial power transmission and effectively avoids the transmission of nachteühaften shear forces. And the previous requirement of high alignment accuracy is significantly reduced even in the case of a readjustment of the two units roller and device. The fixation, in particular clamping of the ball joint takes place at least during operation of the shaker.

On the shaking is at least on one side, preferably on both sides each arranged a temporarily fixable, in particular clamped ball joint, wherein the ball of the single ball joint on the shaker and the ball socket of the single ball joint are provided on the adjacent means. Thus, at least the mass of the shaker can be kept as low as possible. Of course, the ball socket of the single ball joint may also be provided on the shaking bar and the ball of the single ball joint on the adjacent means.

The ball of the single ball joint preferably has a ball diameter in the range of 75 to 300 mm, preferably from 100 to 250 mm, in particular from 120 to 200 mm. These ranges of diameters provide a practicable and feasible compromise between the necessary shaking force transmission with sufficient strength and kink resistance and the operational permissible mass.

Furthermore, the temporary fixing, in particular clamping of the ball joint is preferably carried out on at least two spherical and preferably diametrically arranged spherical partial surfaces of the ball of the ball joint. In this case, an intermediate piece with a preferably cylindrical or crowned basic shape is preferably formed between the two spherical and preferably diametrically arranged spherical partial surfaces of the ball of the ball joint, wherein the basic shape has a maximum diameter in the range of 40 to 80%, preferably from 45 to 75%, in particular of 50 to 70%, of the ball diameter of the ball of the ball joint. This type of clamping is completely ideal even under difficult operating conditions. An end-face flattening of the ball of the ball joint on the surface opposite the shaking bar is possible and also advantageous with regard to a further mass reduction of the shaking bar.

Also, the temporary fixation, in particular clamping of the ball joint, in particular on the at least two spherical and preferably diametrically arranged spherical partial surfaces of the ball of the ball joint takes place at least on one side, preferably two-sided. A one-sided fixation, in particular clamping can be done for example by means of a bolt or the like, a two-sided fixation, in particular clamping, however, for example by means of at least two clamping units. The respective fixation, in particular clamping takes place in an advantageous manner to the spherical and preferably diametrically arranged spherical partial surfaces of the ball of the ball joint.

Further, the temporary fixing, in particular clamping of the ball joint, in particular at the at least two spherical and preferably diametrically arranged spherical partial surfaces of the ball of the ball joint preferably by means of a clamping contour, wherein the ball socket is preferably a linear clamping contour part and the ball part surface of the ball preferably having conical or spherical clamping contour part. These geometries ensure a reliable fixation, in particular clamping even under the most difficult operating conditions, for example with larger load changes and the like.

The shaking bar preferably has a rod main body with a diameter in the range of 15 to 50%, preferably from 20 to 45%, in particular from 25 to 40%, of the ball diameter of the ball. The rod main body of the shaking bar can be formed over a large part of its length, cylindrical, waisted and the like.

And between the rod main body of the shaker and the spherical ball part surface of the ball of the ball joint, a transition region with a transition radius in the range of 5 to 50 mm, preferably from 10 to 25 mm, in particular from 15 to 18 mm, is preferably arranged. Such a gentle transition between the rod main body of the shaking rod and the spherical ball part surface of the ball of the ball joint minimizes a possible notch effect while still optimally transmitting force and moment. The transition region may have a surface quality of Ra = 1.6 μm (standard) or Ra = 0.8 μm (polished).

The shaking bar preferably has a length in the range from 300 to 3,000 mm, preferably from 600 to 2,500 mm, in particular from 800 to 2,000 mm, because sufficient, preferably optimum strength and buckling resistance are still provided in these longitudinal regions.

The roller and the device can be indirectly connected to each other by means of a one-piece shaking rod. As a rule, a clutch is additionally provided between the roller and the device.

Moreover, the shaking device preferably has a shaking index in the range from 1,500 to 6,000 [1000 / min], the shaking index being calculated from the following formula: $$\mathrm{Sch}\ddot{\mathrm{u}}\mathrm{ttelkennzahl}=\left(\mathrm{Sch}\ddot{\mathrm{u}}{\mathrm{ttelfrequenz}}^2\mathrm{x\; Sch}\ddot{\mathrm{u}}\mathrm{ttelhub}\right)/\mathrm{wire\; speed}$$

The units of the individual sizes are as follows: Shake index SKZ in [1000 / min], shaking frequency n in [1 / min], shaking stroke s in [mm] and sieve speed v _sieve in [m / min].

And the respective eccentric drive preferably has a maximum drive torque in the range of 100 to 750 Nm, preferably from 125 to 700 Nm, in particular from 150 to 600 Nm, at a shaking frequency of 100 to 700 1 / min, preferably from 150 to 600 1 / min , and at a Schüttelhub from 0.1 to 30 mm, preferably from 0.1 to 25 mm. These properties are essential for achieving the aforementioned advantages and benefits of the shaker.

The position control of the shaking device can, for example, according to the disclosure of the cited document EP 1 624 102 B1 respectively. In this case, the device may have a system for centering or for maintaining a common zero point between the roller and the device with respect to external disturbances. As a system can be provided by a control device acted upon motorized adjustment.

The shaking device according to the invention can also be used in an excellent manner in a machine for producing a fibrous web, in particular a paper, board or packaging paper web. This then results in the already mentioned above advantages of the invention.

The machine can in a first preferred embodiment as a one-roll, in particular a breast roll having fourdrinier machine be educated. In this case, the shaking device according to the invention moves the roller, in particular the breast roller, back and forth. Such a fourdrinier is for example from the document DE 101 16 867 A1 known.

In a second preferred embodiment, the machine may be designed as a multi-layer machine having at least one roller, in particular a breast roller. In this case, the shaking device according to the invention moves at least one roller, in particular a breast roller, back and forth. Such a multi-layer machine is for example from the publications DE 40 31 038 A1 . DE 100 15 828 A1 and DE 102 23 398 A1 known.

Further features and advantages of the invention will become apparent from the following description of several preferred embodiments with reference to the drawings.

Figur 1

eine schematische und teilweise geschnittene Seitenansicht einer bekannten Schüttelvorrichtung zum Hin- und Herbewegen einer Walze für eine Maschine zur Herstellung einer Faserstoffbahn;

Figur 2

eine schematische und teilweise geschnittene Seitenansicht einer Ausführungsform einer erfindungsgemäßen Schüttelvorrichtung zum Hin- und Herbewegen einer Walze für eine Maschine zur Herstellung einer Faserstoffbahn;

Figur 3

eine schematische Detaildarstellung der in der Figur 2 dargestellten Schüttelvorrichtung; und

Figur 4

eine schematische Detaildarstellung der in der Figur 3 dargestellten Schüttelvorrichtung.

Show it

FIG. 1

a schematic and partially sectioned side view of a known shaking device for reciprocating a roller for a machine for producing a fibrous web;

FIG. 2

a schematic and partially sectioned side view of an embodiment of a shaking device according to the invention for reciprocating a roller for a machine for producing a fibrous web;

FIG. 3

a schematic detail of the in the FIG. 2 Shaking device shown; and

FIG. 4

a schematic detail of the in the FIG. 3 Shaking device shown.

The FIG. 1 shows a schematic and partially sectioned side view of a known shaking device 1 for reciprocating a roller 2 for a non-illustrated machine for producing a fibrous web. The roller 2 is thereby reciprocated along its longitudinal axis L.

The fibrous web may in particular be a paper, board or packaging paper web.

The roller 2 is rotatably mounted on schematically indicated roller bearings 3, 4 and movable in the axial direction, ie along its longitudinal axis L. The roller 2 is connected to the shaker 1 via a coupling 5 which is designed to be generally detachable. The shaking device 1 is used for shaking, ie for reciprocating the roller 2 along its longitudinal axis L, as indicated by a double arrow A.

The shaking device 1 has a device 6, for example, a carriage, a frame or a frame, which is mounted on Einrichtungslagern 7, 8 in the direction of the double arrow A, ie along the longitudinal axis L of the roller 2 movable or movable.

The device 6 is rigidly provided at one axial end with a shaking rod 9, which merges rigidly into the coupling 5, such that a reciprocating movement of the device 6 leads to a corresponding reciprocating movement of the roller 2.

For this purpose, a first eccentric drive 10 and a second eccentric drive 11 are provided on the device 6.

The first eccentric 10 is formed by a pair of flywheel masses 13, 14 which are mounted symmetrically to a roll axis 12 of the roller 2 rotatably in the device 6 and which are driven, for example by a first motor, not shown. The second eccentric 11 is connected by a pair formed by flywheel mass bodies 15, 16, which are also mounted symmetrically to the roller shaft 12 rotatably in the device 6 and which are driven, for example, by a second motor, not shown. However, it can also only one, a drive motor having drive means for driving the two pairs of flywheel bodies 13, 14; 15, 16 may be provided. The eccentric position of the two eccentric drives 10, 11 is mutually adjustable to adjust the stroke of the reciprocating motion of the roller 2.

The FIG. 2 now shows a schematic and partially sectioned side view of an embodiment of a shaking device 1 according to the invention for reciprocating a roller 2 for a non-illustrated machine for producing a fibrous web. The roller 2 is thereby reciprocated along its longitudinal axis L.

With regard to the general structural design of the illustrated shaking device 1 is on the design and description of the in the FIG. 1 referenced shaking device 1.

The connection V between the roller 2 and the device 6 now comprises at least one temporarily fixable, in particular clampable ball joint 17.

In the present embodiment is on the shaking 9 on both sides, ie the beginning and end, each a temporarily fixable, in particular clamped and a ball 18 and a ball socket 19 comprehensive ball joint 17 is arranged. The ball 18 of the single ball joint 17 is in this case provided on the shaking bar 9 and the ball socket 19 of the single ball joint 17 on the adjacent means, ie on the device 6 and indirectly on the coupling 5.

The shaking bar 9, together with its two-sided balls 18, has a length I in the range from 300 to 3,000 mm, preferably from 600 to 2,500 mm, in particular from 800 to 2,000 mm (cf. FIG. 3 ).

And the roller 2 and the device 6 are connected indirectly by means of a one-piece shaking 9. The indirect connection V comprises, as already stated, at least one coupling 5.

Furthermore, the shaking device 1 according to the invention has a shaking index SKZ in the range of 1,500 to 6,000 [1000 / min], wherein the shaking index SKZ is calculated from the following formula: $$\mathrm{shake\; characteristic}=\left({\mathrm{shaking}}^2\mathrm{x\; shaking\; stroke}\right)/\mathrm{wire\; speed}$$

The units of the individual quantities are as follows: Shake index SKZ in [1000 / min], shaking frequency n in [1 / min], shaking stroke s in [mm] and sieving speed v _Sleb in [m / min].

The respective eccentric drive 10, 11 has a maximum drive torque M _max in the range of 100 to 750 Nm, preferably from 125 to 700 Nm, in particular from 150 to 600 Nm, at a shaking frequency n of 100 to 700 1 / min, preferably from 150 to 600 1 / min, and at a shaking stroke s from 0 to 30 mm, preferably from 0 to 25 mm, on.

The FIG. 3 shows a schematic detail of the in the FIG. 2 shown shaking device 1 for reciprocating a roller 2, not shown in detail for a not further dagestellte machine for producing a fibrous web.

The connection V between the roller 2 and the device 6 now comprises at least one temporarily fixable, in particular clampable ball joint 17.

The ball 18 of the respective ball joint 17 is temporarily fixed in the associated ball socket 19 by means of a respective ball cup disc 20, in particular clamped. The single ball cup disc 20 is connected to the ball socket 19, for example by means of several screws 21st

The FIG. 4 shows a schematic detail B of the in the FIG. 3 Shaking device 1 shown.

The connection V between the roller 2 and the device 6, not shown, now comprises at least one temporarily fixable, in particular clampable ball joint 17.

Clearly visible are the ball joint 17 with the mounted on the shaker 9 ball 18 and the attached to the device 6 ball socket 19. Moreover, the ball cup disc 20 and a plurality of screws 21 can be seen.

The ball 18 of the ball joint 17 has a ball diameter D. 18 in the range of 75 to 300 mm, preferably from 100 to 250 mm, in particular from 120 to 200 mm.

And the temporary fixation, in particular clamping of the ball joint 17 takes place on two spherical and preferably diametrically arranged spherical partial surfaces 18.1, 18.2 of the ball 18 of the ball joint 17. It is between the two spherical and preferably diametrically arranged spherical partial surfaces 18.1, 18.2 of the ball 18 of the ball joint 17 a Between adapter 22 formed with a preferably cylindrical or spherical basic shape 23. The basic shape 23 has a maximum diameter D.23 in the range from 40 to 80%, preferably from 45 to 75%, in particular from 50 to 70%, of the ball diameter D.18 of the ball 18 of the ball joint 17.

The temporary fixing, in particular clamping of the ball joint 17, in particular on the two spherical and preferably diametrically arranged spherical part surfaces 18.1, 18.2 of the ball 18 of the ball joint 17 thus takes place on two sides by means of clamping units, which are formed by the ball socket 19 and the ball cup 20. For example, in the case of the formed clamping contour 24, the ball socket 19 has a linear clamping contour part 24.1 and the ball part surface 18.1 of the ball 18 has a conical or spherical clamping contour part 24.2.

Furthermore, a transition region 25 with a transition radius R.25 in the range of 5 to 50 mm, preferably from 10 to 25 mm, in particular from 15 to 18 mm between the rod main body 9.1 of the vibrating rod 9 and the spherical ball part surface 18.2 of the ball 18 of the ball joint 17 arranged.

The shaking rod 9 has a rod main body 9.1 with a diameter D.9.1 in the range of 15 to 50%, preferably 20 to 45%, in particular 25 to 40%, of the ball diameter D.18 of the ball 18 (cf. FIG. 3 ).

The respectively in the FIGS. 2 to 4 At least partially illustrated shaking device 1 according to the invention is outstandingly suitable for use in a machine for producing a fibrous web, in particular a paper, board or packaging paper web.

This machine may be designed as a one-roll, in particular a breast roll having fourdrinier machine and the shaking device according to the invention, the roller, in particular the breast roll back and forth. Alternatively, this machine can also be designed as a multi-layer machine having at least one roller, in particular a breast roller, and the inventive Shaker can reciprocate at least one roller, in particular a breast roller.

In summary, it should be noted that a shaking device of the aforementioned types is provided by the invention, which reduces the disadvantages of the prior art as far as possible, preferably even completely avoided. In particular, the transmission means, in particular the vibrating bar, largely only effects axial force transmission and the transmission of disadvantageous transverse forces is largely avoided. Moreover, the previous requirement of high alignment accuracy is noticeably reduced.

LIST OF REFERENCE NUMBERS

1

shaking

2

roller

3

roller bearings

4

roller bearings

5

clutch

6

Facility

7

way bearing

8th

way bearing

9

shaker

9.1

Rod body

10

First eccentric drive

11

Second eccentric drive

12

roll axis

13

Inertia body

14

Inertia body

15

Inertia body

16

Inertia body

17

ball joint

18

Bullet

18.1

Partial sphere

18.2

Partial sphere

19

ball socket

20

Ball socket plate

21

screw

22

connecting piece

23

Basic form

24

clamping contour

24.1

Terminal part contours

24.2

Terminal part contours

25

Transition area

A

double arrow

B

detail view

D.9.1

diameter

D.18

Ball diameter

D.23

diameter

L

longitudinal axis

I

length

M _max

Maximum drive torque

n

shaking

R.25

Transition radius

s

Orbital

SKZ

shake characteristic

V

connection

V _sieve

wire speed

Claims (15)

1. Roll (2) having a shaking apparatus (1) for moving the roll (2) to and fro along an axis (L) thereof, in particular a roll (2) for a machine for producing a fibrous web, in particular a paper, cardboard or packaging-paper web, the shaking apparatus (1) having a first eccentric drive (10) which is connected to the roll (2) in the direction of the roll axis (L) and a second eccentric drive (11) which is connected to the roll (2) in the direction of the roll axis (L), the two eccentric drives (10, 11) being driven by at least one motor, preferably by two motors, the two eccentric drives (10, 11) being mounted on or in a common and movable or displaceable device (6), and the roll (2) and the device (6) being connected to one another directly or indirectly by means of an at least single-piece shake rod (9), characterized in that the connection (V) between the roll (2) and the device (6) comprises at least one temporarily fixable, in particular lockable ball joint (17).
2. Roll (2) having a shaking apparatus (1) according to Claim 1, characterized in that in each case one temporarily fixable, in particular lockable ball joint (17) is arranged on the shake rod (9) at least on one side, preferably on both sides, the ball (18) of the individual ball joint (17) being provided on the shake rod (9) and the ball socket of the individual ball joint (17) being provided on the adjoining means (5, 6).
3. Roll (2) having a shaking apparatus (1) according to Claim 1 or 2, characterized in that the ball (18) of the individual ball joint (17) has a ball diameter (D.18) in the range from 75 to 300 mm, preferably from 100 to 250 mm, in particular from 120 to 200 mm.
4. Roll (2) having a shaking apparatus (1) according to one of the preceding claims, characterized in that the temporary fixing, in particular locking of the ball joint (17) takes place at at least two spherical and preferably diametrically arranged ball part faces (18.1, 18.2) of the ball (18) of the ball joint (17), and in that an intermediate piece (22) with a preferably cylindrical or spherical basic shape (23) is formed between the two spherical and preferably diametrically arranged ball part faces (18.1, 18.2) of the ball (18) of the ball joint (17), the basic shape (23) having a maximum diameter (D.23) in the range from 40 to 80%, preferably from 45 to 75%, in particular from 50 to 70%, of the ball diameter (D.18) of the ball (18) of the ball joint (17).
5. Roll (2) having a shaking apparatus (1) according to one of the preceding claims, in particular according to Claim 4, characterized in that the temporary fixing, in particular locking of the ball joint (17) takes place at least on one side, preferably on two sides, in particular at the at least two spherical and preferably diametrically arranged ball part faces (18.1, 18.2) of the ball (18) of the ball joint (17).
6. Roll (2) having a shaking apparatus (1) according to one of the preceding claims, in particular according to Claim 4 or Claim 5, characterized in that the temporary fixing, in particular locking of the ball joint (17) takes place by means of a clamping contour (24), in particular at the at least two spherical and preferably diametrically arranged ball part faces (18.1, 18.2) of the ball (18) of the ball joint (17), the ball socket (19) preferably having a linear clamping-contour part (24.1) and the ball part face (18.1) of the ball (18) having a preferably conical or spherical clamping-contour part (24.2).
7. Roll (2) having a shaking apparatus (1) according to one of the preceding claims, characterized in that the shake rod (9) has a rod main body (9.1) with a diameter (D.9.1) in the range from 15 to 50%, preferably from 20 to 45%, in particular from 25 to 40% of the ball diameter (D.18) of the ball (18).
8. Roll (2) having a shaking apparatus (1) according to one of the preceding claims, in particular according to Claim 7, characterized in that a transition region (25) with a transition radius (R.25) in the range from 5 to 50 mm, preferably from 10 to 25 mm, in particular from 15 to 18 mm, is arranged between the rod main body (9.1) of the shake rod (9) and the spherical ball part face (18.2) of the ball (18) of the ball joint (17).
9. Roll (2) having a shaking apparatus (1) according to one of the preceding claims, characterized in that the shake rod (9) has a length (1) in the range from 300 to 3000 mm, preferably from 600 to 2500 mm, in particular from 800 to 2000 mm.
10. Roll (2) having a shaking apparatus (1) according to one of the preceding claims, characterized in that the roll (2) and the device (6) are connected to one another indirectly by means of a single-piece shake rod (9).
11. Roll (2) having a shaking apparatus (1) according to one of the preceding claims, characterized in that it has a shaking characteristic number (SCN) in the range from 1500 to 6000 [1000/min], the shaking characteristic number (SCN) being calculated from the following formula: $$\mathrm{SCN}=\left({\left(\mathrm{shaking\; frequency\; n}\right)}^{\mathrm{2}}\mathrm{x}\left(\mathrm{shaking\; stroke\; s}\right)\right)/\left({\mathrm{fabric\; speed\; v}}_{\mathrm{fabric}}\right)\mathrm{.}$$

    
12. Roll (2) having a shaking apparatus (1) according to one of the preceding claims, characterized in that the respective eccentric drive (10, 11) has a maximum drive moment (M_Max) in the range from 100 to 750 Nm, preferably from 125 to 700 Nm, in particular from 150 to 600 Nm, at a shaking frequency (n) from 100 to 700 l/min, preferably from 150 to 600 l/min, and at a shaking stroke (s) from 0.1 to 30 mm, preferably from 0.1 to 25 mm.
13. Machine for producing a fibrous web, in particular a paper, cardboard or packaging-paper web, characterized in that it comprises at least one roll (2) having a shaking apparatus (1) according to one of the preceding claims.
14. Machine according to Claim 13, characterized in that it is configured as a Fourdrinier wire machine which has a roll (2) having a shaking apparatus (1) according to one of Claims 1 to 12, in particular a breast roll, and in that the shaking apparatus (1) moves the roll (2), in particular the breast roll, to and fro.
15. Machine according to Claim 13, characterized in that it is configured as a multiple-layer machine which has at least one roll having a shaking apparatus according to one of Claims 1 to 12, in particular a breast roll, and in that the shaking apparatus moves at least one roll, in particular a breast roll, to and fro.

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