EP1787929A1 - Machine or machine section with at least one electric motor, preferably as a synchronous motor and/or shaft mounted and used for direct driving a core of a winding reel or for the direct drive of another swivel component, in particular for application in the paper industry and the relevant conversion method - Google Patents

Abstract

Machine or machine section in form of a dryer part of machine has a rotating component in form of a drying cylinder (10), which is propelled by a electric motor (17). The electric motor has a rotor (24) coupled or which can be coupled with the rotating components regarding rotary drive and an motor support arranged relative to frame or directly or indirectly to frame of the machine or the machine section against rotation of supported stator. Machine or machine section in form of a dryer part of machine has the electric motor which is operated as synchronous motor. The electric motor is arranged coaxially to the rotating component in correlation to an axial end area. The rotor is actually free of play of entire rotation or rotary drive connection is coupled or can be coupled directly torque proof with rotating components.

Description

According to a first aspect, the invention relates to a machine or a machine section for preferably continuous winding of a material web, in particular of paper or cardboard, onto a winding core formed in particular by a spool into a winding roller and / or for preferably continuous unwinding of the material web from such a winding roller. wherein the respective winding core is drivable by at least one at least currently operatively associated electric motor having a coupled to the winding core in the sense of a rotary drive or coupled rotor and a directly or indirectly to a chair of the machine or the machine section or a relative to the frame movably arranged motor mount Having torsion supported stator.

The invention further relates, according to a second aspect, more generally also to a machine or a machine section for the production and / or finishing and / or other treatment or / and handling of a moving material web, in particular of paper or cardboard, comprising at least one rotary component, which is provided by at least one electric motor can be driven, the one coupled to the rotary component in the sense of a rotary drive or coupled rotor and a directly or indirectly on a chair of the machine or the machine section or a relative to the Fung movable arranged motor mount against rotation supported stator.

• die Führerseite weist Randsaugzonen zum Führen eines vorlaufenden Einfädel- oder Überführungsstreifens der Materialbahn auf,
• wenigstens eine Haube einer Trockenzylinderanordnung kann auf der Führerseite geöffnet werden, insbesondere von Entfernen von Bahnrückständen im Falle eines Bahnabrisses,
• auf der Führerseite stehen Komponenten der Maschine oder des Maschinenabschnitts höchstens in geringem Maße über die Stuhlung zur Seite vor,
• Drehkomponenten wie Führungswalzen, Saugwalzen, Trockenzylinder und dergleichen sind zur Führerseite hin aus der Maschine bzw. dem Maschinenabschnitt herausziehbar, etwa zum Auswechseln der jeweiligen Drehkomponente, wenn diese verschlissen ist.

The invention further relates, according to a third aspect, to a machine or a machine section for the production and / or finishing and / or other treatment or / and handling of a moving material web, in particular of paper or cardboard, comprising at least one rotary component extending transversely to the running direction of the material web which is drivable by at least one electric motor having a rotatably coupled or rotatable coupled to the rotary component in the sense of a rotary drive and a directly or indirectly on a chair of the machine or the machine section or a relative to the stirrer movably mounted motor mount against rotation supported stator, wherein the machine or the machine section has a driver side and a drive side, wherein the driver side is characterized by at least one of the following features:

• the leader side has edge suction zones for guiding a leading threading or transfer strip of the material web,
• at least one hood of a drying cylinder arrangement can be opened on the driver's side, in particular of removing web residues in the event of a web break,
• on the operator's side, components of the machine or of the machine section are at most slightly out of the way of the chair,
• Rotary components such as guide rollers, suction rolls, drying cylinders and the like can be pulled out of the machine or the machine section towards the driver's side, for example for exchanging the respective rotary component when it has worn out.

It is in this context in particular stationarily arranged in the machine or in the machine section arranged Drehkomponeten and accordingly stationarily arranged in the machine or machine section electric motors, concerning the rotational component, for example, on guide rollers, suction rolls, drying cylinders, press rolls and the like.

Such machines, machine sections and suitable for such machines or machine sections drive assemblies on electric motor base are known in various configurations. Regarding winding machines for winding or unwinding a material web is, for example, on the DE 197 35 590 A1 . DE 198 22 261 A1 . DE 40 07 329 A1 . DE 197 45 005 A1 and EP 0 826 615 A1 directed. Special reference is made to the Sirius roll-up system from Voith Paper. There are also various other Aufroll- and Abrollanordnungen known in the art, to which the invention is applicable in principle.

Concerning the drive of drying cylinders in a dryer section of a paper machine can be used as state of the art, for example on the DE 100 35 578 A1 . DE 100 25 316 A1 and EP 1 158 188 A1 be referenced, each showing a direct drive of a drying cylinder by means of a Aufsteckmotors in the form of a three-phase asynchronous motor without intermediate gear. The DE 299 08 433 U1 shows a roller drive, in particular for a paper guide roll or spreader roll in a paper or board making machine, by means of an asynchronous hollow shaft motor, which is plugged without the interposition of a gear on a roll neck of the roller. A directly driven by a permanent magnet motor drying cylinder is out of DE 87 03 410 U1 and the same priority US 4,820,947 known.

The object of the invention at least according to the first and second aspects is a machine or a machine section of the type specified to provide, which meets the requirements occurring in practice particularly well, especially in terms of compactness of the rotary drive and cost-effectiveness by avoiding mechanical drive elements such as gearboxes, clutches and drive shafts between the electric motor on the one hand and component to be driven on the other.

To solve this problem, the invention proposes (the first aspect of the invention) that the electric motor is designed or operated as a synchronous motor, and that, when operatively associated with a respective winding core, the electric motor is arranged coaxially with this winding core in association with an axial end region thereof, wherein the rotor or a rotary drive connection of the same for the substantially backlash-free common rotation rotatably coupled directly to the winding core or a rotary drive connection thereof or can be coupled.

More generally, it is proposed according to the invention (second aspect of the invention) that the electric motor is designed or operated as a synchronous motor and that the electric motor is arranged coaxially with the rotary component in association with an axial end portion thereof, the rotor or a rotary drive terminal thereof being generally free of play Rotation rotatably coupled directly to the rotary component or a rotary drive terminal thereof or can be coupled.

According to the invention, a direct drive of the component to be driven (winding core or wound roll having this, generally rotational component) in the sense of a so-called "center drive" is provided, being dispensed with intermediate mechanical drive elements such as gearboxes, clutches and propeller shafts, so that on the one hand a very compact , The electric motor-containing drive unit for rotary drive can be realized and on the other hand, the not inconsiderable costs for intermediate mechanical drive elements are avoided. An important consideration is in In this context, the feature of backlash-free joint rotation as a result of the omission of the mentioned mechanical drive elements, which - if technically reasonable - targeted predetermined or from a certain operating situation resulting rotational positions are approached.

Compared to an asynchronous motor, a synchronous motor has the advantage that the speed can be optimized more easily, and that the omission of the slip compensation required for an asynchronous motor improves the dynamic control behavior of the motor. It is achieved a higher accuracy than conventional asynchronous motors. In particular, comparatively large torques are possible at low speeds. This is especially true when the motor is designed with permanent magnets. In this connection, it is thought above all of permanent magnets produced on the basis of at least one rare-earth material, for example neodymium-iron-drilling. Particularly ideal are so-called "torque motors", which operate on the principle of a synchronous motor. Torquemotors usually consist of a stator and a rotor with permanently excited magnets. Due to the comparatively high energy density (permanent magnets) such motors can be particularly compact build or deliver very strong torques over a wide speed range. Such motors are therefore particularly suitable for use in the invention.

The object of the invention, at least according to the third aspect is to provide a machine or a machine section of the specified type, which gives the designer over a conventional design and arrangement of individual components a greater design freedom or / and can meet special requirements and possibly by way of Conversion functional and inexpensive on the basis of an existing machine or an existing machine section can be provided.

To achieve this object, the invention proposes (third aspect of the invention that at least one for driving the or a rotary component serving electric motor is arranged on the driver's side.

The terms "driver side" and "drive side" are clearly defined for the person skilled in the paper industry and the person skilled in the corresponding machine developing and manufacturing industry and are clearly assigned characteristics of the machine or of the machine section. The operator's side is the operating side from which the machine or the machine section is operated and possibly cleaned. In particular, material web remnants, in particular scraps of paper, are removed from the driver's side in the event of a web break, for example using compressed air hoses for which corresponding compressed-air connections are provided on the driver's side. In the case of a dryer section, the drying cylinders are usually covered by a common or individual hoods, and these hoods can be opened on the operating side, so leader page to remove scraps of paper or the like between the drying cylinders.

Furthermore, the various components of the machine or of the machine section, such as the drying cylinders and guide rollers, are mounted on the chair, so that on the driver's side, no parts of the mounting or of the relevant component protrude substantially beyond the chair. On the drive side, on the other hand, there are no restrictions here, and parts of the bearing or the components may protrude beyond the stiffening, as appropriate.

The leader page is also clearly defined by the threading of the web into the machine or machine section serving components and functional configurations. Thus, for threading a threading or transfer strip of a respective material web Randaugzonen provided on the Führerseite. The threading or transfer strip is guided while being guided along the guide side so that this important phase of operation can be better controlled.

Supply lines, however, are primarily arranged on the drive side. Furthermore, Dampfzuführköpfe for drying cylinders are also usually arranged on the drive side, and the condensate removal is also to the drive side.

The drive side and the driver's side are also characterized by the fact clearly that there must be only a small distance on the drive side to the next machine or the next wall in a factory or the like, however, that on the leader side to the next machine or the next wall at least a space in the order of the machine width exists or must exist so that drying cylinders, guide rollers and the like on this side of the machine or the machine section are pulled out, such as for replacing a respective worn component. So far as extending transversely to the direction of the web extending rotary components are not permanently installed, but are interchangeable, this is done replacing the leader's side or from the leader's side.

Furthermore, as the term "drive side" itself expresses, usually drive motors for the various components of the machine or of the machine section are arranged on the drive side. This arrangement is especially useful in connection with the aforementioned interchangeability of rotary components from the driver's side or to the driver's side because then the respective electric motor is not in the way.

According to the invention, however, it is now proposed, from the proven arrangement of serving for driving electric motors on the drive side to deviate at least on a case-by-case basis. This can be useful, for example, if an existing machine or an existing machine section is rebuilt, such as for a higher performance or in other respects. The conversion may then be carried out more cost-effectively, if the installation of a new engine on the drive side would require additional reconstruction effort. For example, can be avoided in a conversion of an indirect drive of drying cylinders to a direct drive without intermediate gear and the like by arranging the new, serving for direct drive electric motor on the guide side that located on the drive side steam heads must be removed or rebuilt.

It is particularly useful if the arranged on the driver's side electric motor is designed as a plug-on motor. It is especially thought that the driver-side arranged electric motor is arranged coaxially with the rotary component in association with an axial end portion thereof, the rotor or a rotary drive terminal thereof for substantially backlash-free common rotation rotatably coupled directly to the rotary component or a rotary drive terminal thereof or can be coupled. Intermediate mechanical drive elements such as gearboxes, clutches and cardan shafts are accordingly dispensed with. Reference is made in this connection to the above explanations in connection with the first and second aspects of the invention.

The electric motor can be designed or operated as an asynchronous motor. In contrast, it is preferred that the electric motor is designed or operated as a synchronous motor. This results in the advantages explained in connection with the first and second aspects of the invention. It comes to the first and second aspect addressed training opportunities (permanent magnets, etc.) in Consideration. It is especially thought of using a torque motor.

As already mentioned, the machine or the machine section can be produced by converting a machine or a machine section, in which the respective rotary component was previously driven by an electric motor arranged on the drive side and associated with the rotary component. In the course of the conversion then the arranged on the driver's side electric motor was installed in association with the rotary component. The invention also provides a conversion process in this connection (see below).

Preferably, the rotor is designed annular and arranged radially inside the stator. The electric motor can, as already mentioned in connection with the third aspect of the invention, be designed particularly expedient as plug-on motor or hollow shaft motor. In this context, it is specifically proposed that the electric motor in the manner of a hollow shaft motor is plugged or plugged directly onto a shaft journal serving as a rotary drive connection of the winding core or the rotary component, wherein the electric motor plugged onto the shaft journal with its rotor is in positive rotational drive connection with the shaft journal ,

Depending on the design of the machine or the machine section, it may be particularly expedient that the shaft journal is designed as a hollow shaft, for example, for supplying an operating fluid, possibly process steam, into an interior of the rotary component or for discharging a fluid (possibly process steam or condensate ) from the interior. Such a configuration is of particular interest in connection with drying cylinders of a dryer section.

As already mentioned, the electric motor of the synchronous motor type designated as "torque motor" or "permanent magnet motor" is preferred. Such motors have proven themselves, for example, for driving machine tools, in particular for direct drive without mechanical transmission elements, such as clutches and gears. Due to their compactness and positioning accuracy, they are used, for example, for use in swivel axes and rotary tables. Due to their high dynamics, they are successfully used in dynamic machine tools and for high-speed lathes of lathes. In particular, torque motors or permanent magnet motors with integrated air or water cooling are also available, for example from Siemens Linear Motor Systems and ABB. With regard to the electric motor to be used according to the invention in the machine or the machine section, it is especially thought that it has integrated fluid cooling, preferably liquid cooling, most preferably water cooling. The stator of the electric motor preferably has integrated fluid cooling, preferably liquid cooling, most preferably water cooling.

A particularly preferred embodiment is characterized by a closed-loop cooling fluid circuit (in particular cooling water circuit) assigned to the electric motor. The cooling fluid circuit, in particular the cooling water circuit, can advantageously be designed with a cooling fluid storage arrangement (in particular a cooling water storage arrangement) or / and with a heat exchange arrangement and / or with a filter arrangement. It is also possible to provide a heating arrangement which permits preheating of the cooling fluid, in particular cooling water, in particular for starting operations. The cooling fluid can therefore be preheated before the actual start of operation to bring the electric motor to a minimum operating temperature, and then serve to cool the electric motor. The cooling water circuit can be filled with conventional components (feed pump, Metering devices, particle dirt filter, flow monitor, temperature monitor, orifice plate, stopcock, etc.). Preferred is a common cooling water circuit for several electric motors.

The use of a closed circuit compared to about a cooling water supply from the public network or from a surface water supply has the advantage that consistent cooling conditions (especially constant inlet temperature) and consistent cooling medium quality (cleanliness, freedom from interference particles, etc.) can be guaranteed.

If a plurality of electric motors is provided, then it is preferable to assign them a common cooling fluid supply, in particular cooling water supply. This also applies if the electric motors are each assigned to a different rotary component or another winding core or can be assigned. In this case, it is preferred in terms of the training proposal already mentioned that the electric motors can be supplied with cooling fluid, in particular cooling water, via a common, closed cooling fluid circuit, in particular cooling water circuit.

To avoid condensation, especially in special operating situations, a thermal encapsulation (insulation) of the motor can be provided. The housing or / and the encapsulation may be made of a non-rusting material (eg stainless steel, aluminum die-cast). As insulation, various plastic materials come into consideration, such as polyurethane, which is particularly advantageous because of its low thermal conductivity and thus its low requirement of volume and light weight. The insulating layer can be particularly expedient directly on and around the motor housing or foamed. As a result, an effective noise reduction of the engine is achieved as an advantageous side effect.

A preferred embodiment is characterized in that the electric motors are each arranged in a separate one of a plurality of cooling fluid branches connected in parallel to one another and having a common inlet and a common outlet. For this purpose, it is further proposed that at least one of the cooling fluid branches can be individually shut off and / or individually controlled with respect to the cooling fluid flow or controllable and / or at least one size of interest, such as fluid temperature and / or cooling fluid flow, and / or that at least one of the cooling fluid branches with a own filter arrangement is executed. It can then set and ensure optimally adapted cooling conditions for each electric motor individually to the respective operating situation.

For example, when used in a dryer section, inclusion of the temperature in the dryer section in the control of the cooling may be advantageous. To prevent the formation of condensation, it can be provided that the cooling circuit is also used to keep the engine at an existing temperature. This may also include a "heating" of the engine, for. B. when the temperature in the dryer section decreases. It is thought in this context to shutdown and falling drive power. Furthermore, a "heating" of the engine during periods of interruption or at least before starting the operation makes sense to avoid condensate water formation or to bring the engine to a minimum operating temperature.

As far as condensate accumulates in or in the region of the (respective) electric motor, it can be advantageously provided that the condensate can be discharged together with the cooling fluid fed to the electric motor, for example by feeding into the cooling fluid circuit or cooling fluid branch.

The electric motor may advantageously be displaceable along its engine mount along a motor guideway. Such a design and Application of the electric motor is particularly facilitated by the relative compactness of the synchronous motor provided according to the invention in connection with the proposed invention according to the first or second aspect. For example, the electric motor can be arranged on a pivoting lever or carriage, wherein either an active drive for displacement of the electric motor is provided or this is shifted by mediating a correspondingly moving rotary component or a correspondingly displaced winding core or winding roll.

It is especially thought that the addressed winding core or the winding roll along a winding guideway is displaced, and that the motor guideway and the winding guideway at least partially correspond to each other for a common displacement of the winding core or the winding roll and the Winding core operatively associated electric motor. Furthermore, with regard to the mentioned rotary component, it is thought that it can be displaced along a rotary component guideway, and that the motor guideway and the rotary component guideway at least partially correspond to each other for a common displacement of the rotary component and the electric motor.

The motor guideway may be linear at least in some areas. This can be realized particularly appropriate using a carriage for the engine. The motor guideway may also extend at least partially arcuate. This can be realized particularly expedient also by means of a carriage or by means of a pivot lever.

The or at least one electric motor, which according to the first or second aspect of the invention may be designed according to the invention as a synchronous motor, may be arranged on the drive side of the machine or of the machine section. Furthermore, the or at least one electric motor, the According to the first or second aspect of the invention may be designed according to the invention as a synchronous motor, be arranged on the leader side of the machine or the machine section.

It can be provided that two motors provided on different sides (driver side and drive side) of the machine or of the machine section jointly rotate a rotary component or a winding core.

Regarding the mentioned machine for winding or unwinding of a material web is mainly, but not exclusively, thought of such an embodiment that the winding core in a first phase of operation, a first electric motor is operationally assigned, so that the rotor or the rotary drive connection of the same substantially is coupled directly to the winding core or the rotary drive connection of the same, that the winding core in a second phase of operation, a second electric motor is operatively assigned, so that the rotor or the rotary drive connection thereof is the same substantially free of play directly coupled to the winding core or the rotary drive connection thereof , And that in a transition phase, the rotor or its rotary drive connection of the first electric motor decoupled from the winding core and the rotor or its rotary drive connection of the second electric motor is coupled to the winding core, preferably such that at least in e Iner subphase of the transition phase both electric motors are coupled to the winding core. The two electric motors are preferably arranged on different sides of the machine or of the machine section.

According to a preferred development, the first electric motor with its motor mount is displaceable along a first motor guideway and the second electric motor with its motor mount can be displaced along a second motor guideway. The first motor guideway is preferably arcuate and the second motor guideway is preferably linear.

For a winding machine with a primary drive and a secondary drive, it is particularly expedient if the first and the second electric motor are controllable in relation to each other, preferably controllable, that the rotary drive connection of the first electric motor and the rotary drive connection of the second electric motor a predetermined defined relative rotational position or a of several predetermined defined relative rotational positions relative to each other. It can then be ensured that a simple transfer of the rotary drive from the primary winder to the secondary winder is possible by ensuring that the rotary drive connection of the winding core and the rotary drive connection of the rotor of the second motor take up a problem-free engagement enabling relative rotational position to each other, if necessary is maintained at least in phases during the rotation.

A particularly preferred development of the machine or of the machine section is characterized in that the rotary drive connection of the rotor, on the one hand, and the rotary drive connection of the respective winding core or the rotary component, on the other hand form a couplable and disengageable form-locking coupling, in particular a splined tooth coupling. This training proposal is mainly for the mentioned machine or the mentioned machine section for winding or unwinding of a material web of interest, since the training proposal allows an advantageous coupling or decoupling about a spool to a concerning electric motor or of a respective electric motor.

In this context, it is proposed as particularly expedient that one of the form-locking coupling forming rotary drive terminals comprises a rotatably mounted on a shaft portion and axially displaceable coupling sleeve having on an inner circumference and / or outer circumference entrainment formations with counter-entrainment formations on a coupling sleeve counter portion of other rotary drive connection with essentially play-free form-fit driving engagement can be brought.

Furthermore, it can be advantageously provided that a relative rotational position between entrainment formations of one rotary drive connection and counter-driving formations of the other rotary drive connection can be detected prior to engaging the form-locking coupling on the basis of at least one associated rotary encoder and that the electric motor for engagement by electrical control in the sense of a control and / or and control defined in a one-engaging relative rotational position between driving formations and counter-driving formations corresponding rotational position is adjustable. Also by this configuration can always short Einkuppelzeiten, ensures reliable engagement and increased wear in the field of positive coupling are avoided.

Advantageously, one can provide a (respective) electric motor associated braking device, preferably comprising at least one arranged on a motor output shaft brake disc. The engine output shaft forms the addressed rotary drive connection of the rotor or has this.

The invention and further development proposals are particularly applicable to a dryer section of a machine for producing or / and finishing a moving material web, for example a paper or board making machine or a coating machine. The The invention accordingly provides a machine section in the form of a dryer section of a machine for producing or / and finishing a moving web, in which the (respective) electric motor designed as a synchronous motor according to the second aspect of the invention drives a rotary component in the form of a drying cylinder. Moreover, the invention in its various aspects can also be applied to various other rotary components of paper and board making machines and paper or board finishing machines, in addition to the already mentioned winding machines. In particular, it is also intended to be used in relation to rotational components used in splicing webs of material, in particular paper webs.

According to the third aspect of the invention, there is further provided a machine section in the form of a dryer section of a machine for producing or / and finishing a moving web. According to the invention, it is provided that the (respective) electric motor arranged on the driver's side drives a rotary component in the form of a drying cylinder or a guide roller. The electric motor is preferably an electric motor designed as a plug-on motor. Preferably, the embodiment of the electric motor as a synchronous motor, in particular torque motor.

Further, it is proposed that a plurality of drying groups are provided, each comprising a plurality of drying cylinders and associated guide rollers, wherein in each drying group in each case at least one drying cylinder and / or at least one guide roller by an arranged on the driver's side electric motor, in particular plug-on motor, can be driven. It may be advantageous to provide that the electric motors are designed or operated as synchronous motors, in particular torque motors, and that a speed control / regulating arrangement is provided, by means of several associated electric motors matched to each other speed controllable or - Preferably - are speed controlled. In particular, by means of the speed control / regulating arrangement a plurality of synchronous motors assigned to a drying group and / or a plurality of synchronous motors assigned to different drying groups can be tuned to one another in terms of speed or-preferably-speed controlled.

The invention further provides a machine section in the form of a headbox or a wire section or a former of a machine for producing or / and finishing a running material web. It is proposed that the (respective) electric motor (in particular plug-on motor) arranged on the driver's side drives a rotary component in the form of a roller, possibly a wire guide roller. Again, an embodiment of the electric motor as a synchronous motor, in particular torque motor, particularly useful.

The invention further provides a machine section in the form of a press section of a machine for producing or / and finishing a moving material web. According to the invention, it is provided that the (respective) electric motor arranged on the driver's side, in particular plug-on motor, drives a rotary component in the form of a roller, optionally a press roller or a felt guide roller. Again, it is particularly useful when the electric motor is designed as a synchronous motor, in particular torque motor.

• die Führerseite weist Randsaugzonen zum Führen eines vorlaufenden Einfädel- oder Überführungsstreifens der Materialbahn auf,
• wenigstens eine Haube einer Trockenzylinderanordnung kann auf der Führerseite geöffnet werden, insbesondere von Entfernen von Bahnrückständen im Falle eines Bahnabrisses,
• auf der Führerseite stehen Komponenten der Maschine oder des Maschinenabschnitts höchstens in geringem Maße über die Stuhlung zur Seite vor,
• Drehkomponenten wie Führungswalzen, Saugwalzen, Trockenzylinder und dergleichen sind zur Führerseite hin aus der Maschine bzw. dem Maschinenabschnitt herausziehbar, etwa zum Auswechseln der jeweiligen Drehkomponente, wenn diese verschlissen ist. Der oder wenigstens ein Elektromotor ist auf der Triebseite angeordnet.

The invention furthermore provides a method for converting a machine or a machine section for the production or / and finishing and / or other treatment or / and handling of a moving material web, in particular of paper or cardboard, comprising at least one rotary component extending transversely to the running direction of the material web, which is drivable by at least one electric motor having a rotor coupled to the rotary component in the sense of a rotary drive or coupled and a directly or indirectly to a stiffening of the machine or the machine section or a relative to the stirrer movably arranged motor mount against torsion supported stator, ready. The machine or the machine section has a driver side and a drive side. The guide page is characterized by at least one of the following features:

• the leader side has edge suction zones for guiding a leading threading or transfer strip of the material web,
• at least one hood of a drying cylinder arrangement can be opened on the driver's side, in particular of removing web residues in the event of a web break,
• on the operator's side, components of the machine or of the machine section are at most slightly out of the way of the chair,
• Rotary components such as guide rollers, suction rolls, drying cylinders and the like can be pulled out of the machine or the machine section towards the driver's side, for example for exchanging the respective rotary component when it has worn out. The or at least one electric motor is arranged on the drive side.

According to the invention, in the course of the conversion in association with the or at least one rotary component, an electric motor is installed on the driver's side which takes over the drive of the rotary component instead of or in addition to or at least one electric motor arranged on the drive side. In this connection, it is mainly thought that the electric motor arranged on the driver's side alone takes over the drive of the rotary component and that the rotary drive connection between the rotary component and the electric motor arranged on the drive side is interrupted. In general, it will be useful if the arranged on the drive side electric motor is removed.

The rotary component in question may have on the driver's side a shaft journal, which is suitable as a rotary drive connection or is equipped in the course of the conversion for suitability as a rotary drive connection. Another possibility is that in the course of the conversion the rotary component is first equipped with a shaft journal suitable as a rotary drive connection. In the course of the conversion is then plugged in the case of the preferred embodiment of the electric motor as Aufsteckmotor this producing a positive rotational driving connection on the shaft journal.

The conversion may result in a machine or a machine section, which corresponds to a machine according to the invention or a machine section according to the invention according to the second or third aspect of the invention and the mentioned development possibilities for this purpose.

Furthermore, according to a further aspect of the invention, a machine or a machine section is provided, in particular in the form of a dryer section of a machine for producing or / and finishing a moving material web, preferably with features according to the above proposals. It is proposed that at least one electric motor designed or operable as a synchronous motor or that the electric motor drives at least one rotary component, in particular at least one drying cylinder, can be cooled by means of a cooling fluid inlet and outlet, in particular cooling liquid inlet and outlet. Preferably, the machine or the machine section has a cooling fluid supply, in particular a cooling fluid supply for the provision of the cooling fluid, in particular the cooling fluid, with a feed temperature of at least 50 ° C, preferably 60 to 70 ° C, to the electric motor.

Furthermore, a method is provided for operating such a machine or such a machine section. It is proposed that cooling fluid or cooling fluid having an inlet temperature of at least 50 ° C., preferably 60 to 70 ° C., be supplied to the electric motor via the cooling fluid inflow, in particular the coolant inflow.

Fig. 1

zeigt eine zum Drehantrieb von Tambouren dienende, einen Synchronmotor aufweisende Antriebseinheit 10 in einer Wickelstation oder Wickelmaschine zum Aufwickeln einer Materialbahn, insbesondere Papier oder Karton, auf einen jeweiligen Tambour.

Fig. 2

zeigt einen geschlossenen Kühlwasserkreislauf für mehrere, jeweils einen Synchronmotor aufweisende Antriebseinheiten.

Fig. 3

zeigt eine Wickelmaschine, die einen Primärwickler, einen Sekundärwickler und eine angetriebene Anpress- oder Tragtrommel oder Anpress- oder Tragwalze aufweist und von der Sirius-Wickelmaschine von Voith Paper ausgeht.

Fig. 4

zeigt schematisch eine Seitendarstellung einer im Wesentlichen der Konstruktion der Fig. 3 entsprechenden Wickelmaschine.

Fig. 5

zeigt ein Beispiel eines mittels eines wassergekühlten Synchronmotors direkt angetriebenen Trockenzylinders in einer Trockenpartie einer Papiermaschine oder Streichmaschine.

Fig. 6

zeigt schematisch eine Trockenpartie einer Papiermaschine vor einem Umbau (Fig. 6a) und nach einem Umbau (Fig. 6b).

Fig. 7

zeigt als veranschaulichendes Ausführungsbeispiel einen Ausschnitt aus einer Trockenpartie, bei der die Antriebsmotoren für die Trockenzylinder auf der Führerseite und die Antriebsmotoren für zugehörige Leit- oder Führungswalzen auf der Triebseite angeordnet sind.

Herkömmlich erfolgt das Auf- und Abrollen von Papierbahnen vermittels von Standard-Asynchron-Elektromotoren. Die Kraftübertragung zum in der Wickelstation angeordneten Tambour übernehmen dabei mechanische Antriebselemente wie Gelenkwellen, Getriebe und Kupplungen. Diese Antriebselemente sowie die nicht sonderlich kompakten Motoren benötigen vergleichsweise viel Platz, so dass dementsprechend größere Gebäude erforderlich sind, bzw. in einem gegebenen Gebäude die installierbare Maschinenkapazität entsprechend begrenzt ist. Ferner resultiert ein vergleichsweise aufwändiger konstruktiver Aufbau der Wickelmaschine, resultieren große zu bewegende Massen und eine vergleichsweise aufwändige elektrische Ansteuerung. Ferner ist der Investitionsaufwand infolge kostspieliger Komponenten und des erwähnten Platzbedarfs vergleichsweise groß.The invention will be explained in more detail below with reference to the embodiments shown in the figures.

Fig. 1

shows a serving for the rotary drive of Tambouren, a synchronous motor having drive unit 10 in a winding station or winding machine for winding a web, in particular paper or cardboard, on a respective spool.

Fig. 2

shows a closed cooling water circuit for several, each having a synchronous motor having drive units.

Fig. 3

shows a winding machine having a primary winder, a secondary winder and a driven pressing or carrying drum or pressing or support roller and emanating from the Sirius winding machine Voith Paper.

Fig. 4

schematically shows a side view of a substantially corresponding to the construction of Fig. 3 winding machine.

Fig. 5

shows an example of a directly driven by a water-cooled synchronous motor drying cylinder in a dryer section of a paper machine or coater.

Fig. 6

schematically shows a drying section of a paper machine before a conversion (Fig. 6a) and after a conversion (Fig. 6b).

Fig. 7

shows as an illustrative embodiment of a section of a dryer section, in which the drive motors for the drying cylinder on the leader side and the drive motors for associated guide or guide rollers are arranged on the drive side.

Conventionally, the winding and unwinding of paper webs takes place by means of standard asynchronous electric motors. The power transmission to arranged in the winding station tambour take over mechanical drive elements such as propeller shafts, transmissions and clutches. These drive elements and the not very compact motors require comparatively much space, so that accordingly larger buildings are required, or in a given building the installable machine capacity is limited accordingly. Furthermore, results in a comparatively complex structural design of the winding machine, resulting in large masses to be moved and a comparatively complex electrical control. Furthermore, the investment cost due to expensive components and the mentioned space requirements is comparatively large.

• Eine konstante Zugleistung über einen großen Wickelbereich erfordert einen sehr großen Motor.
• Es resultieren ein großes Gewicht, ein großer Platzbedarf und es müssen große Massen bewegt werden.
• Die Maschinenkonstruktion muss besonders steif ausgeführt werden mit entsprechenden Kosten und entsprechendem Bauraumbedarf.
• Herkömmliche Motoren werden üblicherweise durch weiteren Bauraum einnehmende Anbaulüfter gekühlt (Fremdkühlung).
• Durch Getriebeeinbau ist zwar auf Grundlage einer Drehzahlanhebung eine Reduzierung der Motorgröße möglich, das Getriebe ist aber kostenaufwändig und führt in der Regel Drehspiel ein. Überdies ist der Bauraumgewinn wegen des Platzbedarfs für das Getriebe begrenzt.
• Große Motoren führen zu einer großen Geräuschentwicklung.
• Es resultiert ein hohes Trägheitsmoment des Antriebs.

Significant disadvantages of the prior art are the following in brief:

• A constant pulling power over a large winding area requires a very large engine.
• It results in a large weight, a large space requirement and it must be moved large masses.
• The machine construction must be carried out particularly stiff with corresponding costs and corresponding space requirements.
• Conventional motors are usually cooled by additional space-consuming attachment fan cooled (external cooling).
• Although gear reduction makes it possible to reduce the size of the engine on the basis of a speed increase, the gearbox is costly and generally introduces a rotational play. Moreover, the space gain is limited because of the space required for the transmission.
• Large engines lead to a large noise.
• This results in a high moment of inertia of the drive.

In contrast, the invention proposes to drive a running or operated as a synchronous motor electric motor, in particular a so-called "torque motor" with permanently excited to use a high energy density resulting magnet, as the center drive, eliminating all mechanical drive elements such as gears, clutches and universal joints except a coupling and decoupling of a respective drum (generally winding core) to the electric motor enabling coupling, in particular positive coupling, is used for rotary drive.

The drive unit 10 of Fig. 1 is implemented in implementation of this invention proposal with a so-called torque motor or permanent magnet synchronous motor, which is arranged as shown in FIG. 1 in a cuboid motor lantern 12, on a chair 14 of the winding station (or a paper machine) fixed or longitudinal a guideway is arranged movable (such as mediating a sliding carriage). From the motor lantern 12, the motor output shaft 15 is shown, on which a motor output hub 16 is attached via an expansion screw 17. On the motor output hub 16 sits a sliding sleeve 18 which is held by a splined or splined on the outer circumference of the output hub and in the inner circumference of the sliding sleeve on the output hub substantially rotationally fixed and thus is coupled to the output shaft 15 substantially rotatably. The inscribable as a sliding or coupling hub sliding sleeve 18 is provided with a Gearing 20 (external teeth) on its outer periphery with an associated counter-toothing 22 (internal teeth) in an inner circumference of a coupling end 24 (often referred to as "Tambourglocke") of a respective spool 108 in substantially play-free Drehitnahemeingriff brought to the respective spool for winding or Unwinding a web of material for common rotation rotatably drive.

To disengage and engage the form-locking coupling formed by the sliding sleeve 18 and the respective coupling end 24 and the Tambourglocke a respective spool the sliding sleeve is displaceable by means of a pneumatically operated cylinder-piston device 26 relative to the output hub 16 in the Keilnutenanordnung, via a two-armed lever (engagement lever) 28 and an effective between the lever and the sliding sleeve pivot bearing 30th

The motor output hub 16 also carries a brake disc 32, which allows braking of the rotation of the synchronous motor or its output shaft 16 and thus possibly the spool or the winding roll by means of a brake caliper braking device 34. The braking device may advantageously be pneumatically actuated.

In general, it will be useful if the torque motor or generally the synchronous motor according to the invention, a speed sensor 36 is associated.

Preferably, an active cooling of the drive unit 10, especially the torque motor or permanent magnet synchronous motor contained therein (generally synchronous motor) is provided, preferably a water cooling, is actively supplied to the cooling water and discharged again. This is symbolized in Fig. 1 by the arrows 38.

Often it will be useful to provide for a defined discharge of condensate, as symbolized in Fig. 1 by the arrow 40. In this context, it is particularly useful when the condensate is supplied to the effluent cooling water.

Depending on the design of the engine, this can be provided with a permanent lubrication supply and / or have a relubrication device. A connection for supplying lubricant is designated 42 in FIG. 1 and is used in particular for interval lubrication of the splines of the motor output hub 16 and the sliding hub 18. Preference is given to high-temperature grease lubrication, since comparatively high operating temperatures may occur depending on the operating situation. This applies in particular in connection with other applications lying within the scope of the invention, especially in connection with the drive of drying cylinders by means of synchronous motors according to the invention, preferably torque motors.

In the drive unit 10, a rotary encoder can be integrated, which allows an accurate detection of a current rotational position. Furthermore, such a rotary encoder can be assigned to a respective drum or a device can be provided which determines an angular position of the internal toothing 22 or sets a defined angular position of this internal toothing (absolute or relative to the external toothing 20). This opens up the possibility of the relative rotational angle of the two coupling halves of the form-locking coupling, so the angular position of the outer teeth 20 relative to the internal teeth 22 in the decoupled state match each other such that a safe engagement is guaranteed, such that axial end surfaces of the preferably as "Zahnverzahnungen "running gears do not collide. A control unit controlling the relative rotational positioning is designated 44 in FIG.

A torque motor or permanent magnet synchronous motor works on the principle of a synchronous motor and has a stator with windings and a rotor with permanently excited magnets. Regarding the permanently excited magnets, rare-earth magnets are advantageously used. Torque motors or permanent magnet synchronous motors are characterized by very high precision and high dynamics, high torques at low speeds and a low moment of inertia. They are particularly well suited for the direct drive of rotating components, are characterized by a compact, robust design, are therefore also suitable for problematic or spatially limited installation situations, relatively maintenance-free, wear-free, quiet and in itself essentially free of play. In contrast to asynchronous motors, no inherent slip occurs. Torque motors or permanent magnet synchronous motors are available with integrated air or water cooling. In particular, by a water cooling a very effective heat dissipation is possible, whereby such motors are especially suitable for high ambient temperatures. In addition, water-cooled engines have a smaller size with the same power, so they are more compact.

• Geringes Trägheitsmoment;
• vergleichsweise konstantes Moment über den gesamten Drehzahlbereich;
• hohe Dynamik;
• hohe Wiederholgenauigkeit;
• eine Geräuschkapselung ist auf Grund der Kompaktheit und integrierter Kühlung einfach möglich,
• die integrierte Kühlung ermöglicht den Verzicht auf eine gesonderte, zu störenden Geräuschemissionen führenden Lüftereinheit;
• Torquemotoren bzw. Permanentmagnet-Synchronmotoren sind in den verschiedensten Auslegungen problemlos verfügbar;
• definierte Drehwinkel lassen sich mit hoher Genauigkeit anfahren;
• keine inhärenten Elastizitäten;
• vergleichsweise große Überlastfähigkeit.

Other, partly already mentioned advantages and properties of torque motors or permanent magnet synchronous motors are the following:

• Low moment of inertia;
• comparatively constant torque over the entire speed range;
• high dynamics;
• high repeat accuracy;
• noise isolation is easily possible due to the compactness and integrated cooling,
• the integrated cooling makes it possible to dispense with a separate fan unit leading to disturbing noise emissions;
• Torquemotors or permanent magnet synchronous motors are readily available in various designs;
• defined rotation angles can be approached with high accuracy;
• no inherent elasticities;
• comparatively high overload capacity.

The cooling of the synchronous motor according to the invention, preferably torque motor or permanent magnet synchronous motor takes place, as already mentioned, preferably on the basis of cooling water. It is specifically proposed for this purpose to provide a closed cooling water circuit, which can serve very useful for the cooling water supply of multiple synchronous motors. The synchronous motors to be supplied with cooling water by means of a cooling water circuit can be synchronous motors of a winding machine, for example the synchronous motor according to the invention of a primary winder and a synchronous motor according to the invention of a secondary winder of a winding machine. If several winding machines are present, their synchronous motors according to the invention can be appropriately supplied with cooling water across machines by a common cooling water circuit (generally cooling fluid circuit). A closed cooling water circuit (generally cooling fluid circuit) is also useful for synchronous motors used in other contexts according to the invention, for example for synchronous motors which drive various types of rollers and cylinders in machines for producing or / and finishing a material web, in particular paper or cardboard. It is especially thought of according to the invention for direct drive of drying cylinders used synchronous motors. It also applies with respect to these synchronous motors that a common cooling fluid circuit, in particular cooling water circuit, is provided for a plurality of synchronous motors, wherein it is quite possible, used in various contexts synchronous motors, such as synchronous motors of a winding machine on the one hand and On the other hand, to supply synchronous motors of a drying section with cooling medium by means of a common circuit.

2 shows schematically one of several synchronous motors 11a, 11b, 11c and 11d according to the invention, in particular a plurality of permanent magnet synchronous motors or torque motors 11a, 11b, 11c and 11d, associated, closed cooling water circuit 50. The circuit has a plurality of cooling water branches 52a, 52b, 52c and 52d, which are supplied to each other in parallel via a common inlet 54 from a cooling water sucking from a reservoir 56 pump 58 with cooling water and open into a common outlet 60 which leads via a heat exchanger assembly 62 into the reservoir 56. The cooling water branches are each designed with shut-off valves, which are designated 64, 66 and 68 in the case of the cooling water branch 52a. Furthermore, the cooling water branches are each provided with a dirt filter (dirt filter 70 in the case of the cooling water branch 52a) and a flow monitor (flow switch 72 in the case of the cooling water branch 52a) and with a manually or preferably by means of a remotely controllable actuator adjustable aperture (aperture 74 in the case of the cooling water branch 52a ) and an input side temperature sensor (temperature sensor 76 in the case of the cooling water branch 52a) and an output side temperature sensor (temperature sensor 78 in the case of the cooling water branch 52a) with respect to the respective engine.

In addition to the dirt filters provided in the individual cooling water branches, a dirt filter arrangement can also be arranged in the common inlet 54, preferably on the input side in the pump 58.

The cooling water circuit 50 is preferably made of corrosion-free components, in particular stainless steel components (in particular Stainless steel piping), manufactured so that it can be dispensed with corrosion inhibitors in the coolant.

As indicated in relation to the electric motor 11a, preferably a condensate discharge from the engine or from the region of the engine into the cooling water flowing out from the engine and thus into the reservoir 56. A corresponding condensate discharge line is designated 80 and can be provided with suitable valves and the like.

The dashed representation of the cooling water branch 52d is intended to express that this cooling water branch can certainly represent several other cooling water branches. As indicated at the far right in FIG. 2, the cooling water circuit may also have a bypass branch 82 parallel to the cooling water branches, which is designed with a pressure relief valve 84 symbolized by a check valve. This valve opens only when a preset maximum pressure is exceeded to avoid damage due to overpressure.

3 shows an example of a winding machine 100 designed according to the invention with synchronous motors, namely permanent magnet synchronous motors or torque motors, for direct drive of the drums, which has a primary winder 102 and a secondary winder 104. The two winders each have one, the synchronous motor according to the invention having drive unit 10a and 10b, for example, according to the drive unit 10 of FIG. 1, in Fig. 3, not all details of this drive unit can be seen. In any case, the cuboid motor lanterns 12a and 12b can be seen. According to FIG. 3, the motor lantern 12b is arranged on a carriage 105b which, after transfer of the winding roller 106 from the primary winder 102 to the secondary winder 104, is displaceable along a linear guide path arranged on a chair 14b in accordance with a linear displacement of the winding roller 106 rotationally driven by the secondary winder 104.

The motor lantern 12a of the primary winder is held on a pivotally mounted on a chair 14a pivot lever 1 14 and can be pivoted along an arcuate guideway, according to a pivoting of the primary winder associated winding roller 106. Their drum 108 is held for this purpose in a pivot lever assembly 116. There is a pivoting in an angular position or a vertical position of the secondary winder corresponding vertical position, in which a transfer of the rotary drive to the secondary winder 104 takes place.

Serving as a winding core of the winding roller 106 drum 108 is rotatably driven by means of a slidably disposed on an output shaft of the respective synchronous motor coupling hub 18a and 18b directly by the synchronous motor of the primary winder 102 and by the synchronous motor of the secondary winder 104 (depending on the operating situation), as based on Embodiment of Fig. 1 explained. Thus, a "Tamboureinrückvorrichtung" may be provided, comprising a motor output hub corresponding to the motor output hub 16, a sliding or Koppelnabe corresponding to the sliding hub 18 (with an outer toothing 20 corresponding outer teeth) and an engaging lever corresponding to the engagement lever 28. The beschiegbarte also as a sliding sleeve sliding hub 18 thus engages radially inside in a sleeve-like coupling end 24 of the respective spool, technically in the "Tambourglocke" a.

The winding machine according to FIG. 3 has, as is known, a pressure drum or pressure roller 110, also referred to as a supporting drum, which forms a winding gap with the winding roller 106. This Anpresstrommel (carrier drum) or pressure roller is also rotatably driven according to the invention proposals by means of a preferably designed as a permanent magnet torque motor synchronous motor, the part of the drive unit 10 of FIG. 1 substantially corresponding Drive unit 10c is. There may be a permanent coupling with a rotating shaft 112 of the Anpresstrommel (carrier drum) or pressure roller, for example by means of a permanent Drehverkopplung producing coupling sleeve 18c, or a coupling and disengageable coupling, such as by means of a sliding sleeve similar to the embodiment of FIG.

The drive unit 10c has, as in the embodiment of Fig. 1, a cuboid motor lantern 1 2c, which is arranged on a carriage 105c, which is arranged along a arranged on a chair 15c, comparatively short linear guide track is displaced to a desired contact pressure to keep in the winding nip.

4 shows a schematic side view of the winder 100. FIG. 4 is from the published patent application DE 198 22 261 A1 taken there and corresponds to FIG. 1. There were the reference numerals of DE 198 22 261 A1 maintained. If one understands FIG. 4 as a schematic side view of the winder 100 according to FIG. 3, then the element 32 is the drive unit 10a, the element 50 the drive unit 10b, the drum or roller 18 the tapping drum (carrier drum) or pressure roller 110, the element 14 As the primary winder associated drum 108 and the element 14 as already passed to the secondary winder drum (not shown in Fig. 3) to identify. 30 denotes the primary winder associated, arcuate guideway along which the drive unit 10a is pivoted. 48 designates a guideway associated with the secondary winder, along which the drive unit 10b is moved linearly, according to the example of FIG. 4, for example by means of a threaded spindle 56, which cooperates with a transport device 36. According to the invention, the drive units are designed with direct center drives on the basis of synchronous motors without the interposition of bevel gearboxes, gear shafts and the like, as with reference to FIGS. 1 and 3 explained. This represents the most important improvement according to the invention according to the solution DE 198 22 261 A1 represents.

Once again, reference is made to the above-mentioned aspect of the absolute or relative detection of angles of rotation of the electric motor (s) according to the invention. In the case of a winding machine with a primary winder and a secondary winder, a significant advantage is already achieved when the primary winder and the secondary winder are so controllable or controllable by means of the respective synchronous motor that they or the driving formations (such as keyways) their coupling sections (such the sliding sleeves) during their rotation defined rotational positions relative to each other, namely such relative rotational positions, that when the primary winder is in rotational drive engagement with a respective drum, the transfer of the rotary drive to the secondary winder, especially the production of the rotary driving engagement between the spool and the coupling portion of the secondary winder, can be produced without time delay. By ensuring the mentioned defined relative rotational positions can be achieved that the respective entrainment formations of the main cylinder on the one hand and the driving formations of the secondary winder on the other hand occupy or hold a relative angular position to each other so that they can be brought easily in mutual positive engagement. This can be achieved even without a respective rotation angle detecting rotary encoder or the like by a defined angular orientation of the entrainment formations of the respective winder relative to the magnetic poles, in particular permanent magnets, the rotor of the respective synchronous motor is selected. It is then possible to ensure a mutually synchronous and the mentioned relative angular orientation of the entrainment formations of the primary winder on the one hand and the secondary winder on the other hand by generating a defined electromagnetic rotating field by means of the windings of the stator. In other words, It is possible to transmit the angular orientation of the driving formations of the new spool on the synchronous motor of the prime mover and the synchronous motor of the secondary drive, so as to adjust the position z. B. match the internal teeth to the external teeth of the coupling parts to each other. Thus, an end-side abutment is prevented and thus created the best conditions to ensure a good, consistent winding quality (eg winding hardness), even when switching from primary to secondary drive.

Significant advantages of the embodiment explained with reference to FIG. 1 also result from the provision of the braking device 32, 34, which allows a fast, targeted braking of the coupled drum together with the engine output shaft.

• Torquemotor eingebaut in quaderförmige Motorlaterne;
• Motorabtriebswelle mit Motorabtriebsnabe sowie vorzugsweise einer verstärkten Lagerung;
• Schiebe- oder Koppelnabe mit motorseitigen Mitnahmeformationen, etwa Keilwellenverzahnung, in Zuordnung zur Motorabtriebswelle bzw. zur Motorabtriebsnabe und tambourseitige Mitnahmeformationen (insbesondere Ausbildung einer Zahnkupplung des jeweiligen Tambours);
• Ein- und Ausrückvorrichtung, vorzugsweise mit Gabelgelenk und Ausrücklager;
• der Motorabtriebsnabe oder Motorabtriebswelle zugeordnete Bremsvorrichtung, etwa gebildet von wenigstens einer Bremsscheibe und einer am quaderförmigen Gehäuse gehaltenen Bremszange;
• hohe Positioniergenauigkeit betreffend den Zahneingriff, etwa vermittels einer Lageregelung der Kupplung auf Grundlage eines Drehgebers;
• spielfreier Antrieb durch Wegfall von herkömmlich vorgesehenen mechanischen Antriebselementen;
• Antrieb mit sehr hoher Präzision bei hoher Dynamik;
• Drehzahlerfassung für die Motordrehzahl;
• Motorgehäuse mit integrierter Nachschmiereinrichtung;
• Schmierstellenverteiler zum Nachschmieren der Ein- und Ausrückung sowie der Keilwellenprofile;
• Ein- und Ausrückung über Pneumatikzylinder und Hebelanordnung (vgl. Einrückhebel);
• Hochtemperaturfettschmierung;
• geschlossener Kühlwasserkreislauf für mehrere Wicklermotoren bzw. Wickelmaschinen;
• Kühlwasserspeicher mit Förderpumpe und Zuteilgeräten;
• Kühlwasserkreislauf mit Schmutzfilter zum Rückhalten von Partikeln, Strömungswächtern, Temperaturwächtern, Blende und Absperrhahn;
• Edelstahlkreislauf zur Vermeidung von Korrosionsschutzmitteln;
• Kondensatrückführung vom Motor zum Kühlwasserspeicher.

The following features of the illustrated embodiments are considered to be particularly advantageous:

• Torque motor installed in cuboid motor lantern;
• Engine output shaft with motor output hub and preferably a reinforced bearing;
• Sliding or coupling hub with motor-side entrainment formations, such as splines, in association with the engine output shaft and the engine output hub and tambourseitige entrainment formations (in particular formation of a toothed coupling of the respective spool);
• In- and release device, preferably with fork joint and release bearing;
• the brake device associated with the engine output hub or engine output shaft, for example, formed by at least one brake disc and a brake caliper held on the cuboid housing;
• high positioning accuracy regarding the meshing, such as by means of a position control of the clutch based on a rotary encoder;
• backlash-free drive by eliminating conventionally provided mechanical drive elements;
• Drive with very high precision with high dynamics;
• Speed detection for the engine speed;
• Motor housing with integrated relubricating device;
• Lubrication point distributor for regreasing the input and output as well as the splined shaft profiles;
• In- and disengagement via pneumatic cylinder and lever arrangement (see engagement lever);
• High temperature grease lubrication;
• closed cooling water circuit for several winder motors or winding machines;
• Cooling water reservoir with delivery pump and metering devices;
• Cooling water circuit with dirt filter for the retention of particles, flow monitors, temperature monitors, orifice plate and stopcock;
• Stainless steel circuit to prevent corrosion inhibitors;
• Condensate return from the engine to the cooling water tank.

The features listed above may be provided individually or in combination in connection with winding machines according to the invention and can also be used in other fields of application of the invention proposals, such as in a drying cylinder direct drive in a dryer section. In this latter application, the high-temperature grease lubrication is of particular importance, since a flow of fat can be avoided. For this purpose, for example, a fat should be used, the dropping point is above 230 ° C or even above 250 ° C.

For the design of the cooling water circuit, the following exemplary information can be made. Depending on the power of the synchronous motor to be cooled, for example, a cooling water flow of 5 to 50 liters / minute, preferably 5 to 30 liters / minute is considered, for example, at a feed temperature of 5 to 50 ° C, optionally 5 to 35 ° C. A lower inlet temperature is usually hardly expedient to avoid condensation. For example, it could be desirable to select the cooling water inlet such that a temperature of less than approximately 50 ° C. is maintained in the cooling water return.

In contrast, however, it may be more expedient for some applications, in particular at higher ambient temperatures, to operate with greater feed temperatures than stated above, for example with a feed temperature greater than 50 ° C., preferably approximately in the temperature range 60 to 70 ° C. Namely, in the case of lower feed temperatures, in some applications undesired condensations can occur either in the engine itself or / and in a drying hood which surrounds it approximately. Due to the higher inlet temperature this is avoided. This advantageously makes it possible to use a corresponding motor or several corresponding motors in the dryer section of a paper or coating machine.

In particular, at an ambient temperature T ~ 90 ° C, the feed temperature should preferably be greater than 50 ° C, preferably 60 to 70 ° C. The return temperature should preferably be greater by 2 ° Kelvin than the inlet temperature.

• Kompakter Wickler-Direktantrieb mit spielfreier Kraftübertragung;
• es sind keine mechanischem Antriebsteile und Vorlegewellen erforderlich;
• durch den erfindungsgemäß eingesetzten Synchronmotor, insbesondere Permanentmagnet-Torquemotor, kann eine konstante Zugleistung bei großem Wickelbereich und kleinen Abmessungen erreicht werden;
• durch kleine bewegte Massen ist die Maschinenkonstruktion vergleichsweise kostengünstig;
• durch die kompakte Bauweise kann der erfindungsgemäße Motor vergleichsweise leicht längs einer Führungsbahn bewegt werden, etwa zwischen einer Primär-Wickelposition und einer Sekundär-Wickelposition bzw. entlang einer dem Sekundärwickler zugeordneten Führungsbahn (insbesondere kann der Motor auf einem Schwenkhebel oder Fahrschlitten angeordnet werden);
• die erfindungsgemäße Motorart bietet die Möglichkeit, den Drehwinkel der "Kupplungshälften" im entkuppelten Zustand aufeinander abzustimmen, um ein sicheres Einkuppeln zu gewährleisten (es wird vermieden, dass Mitnahmeformation auf Mitnahmeformation bzw. Zahn auf Zahn trifft).

In summary, the embodiments of a winding machine shown have the following advantages in particular:

• Compact winder direct drive with backlash-free power transmission;
• no mechanical drive parts and countershafts are required;
• by the synchronous motor used according to the invention, in particular permanent magnet torque motor, a constant pulling power can be achieved with a large winding area and small dimensions;
• by small moving masses, the machine design is relatively inexpensive;
• due to the compact construction, the motor according to the invention can be moved comparatively easily along a guide track, for example between a primary winding position and a secondary winding position or along a guideway associated with the secondary winder (in particular, the motor can be arranged on a pivoting lever or carriage);
• The motor type according to the invention offers the possibility of matching the angle of rotation of the "coupling halves" in the uncoupled state in order to ensure reliable engagement (it is avoided that entrainment formation encounters entrainment or tooth on tooth).

Due to the compactness of the engines, installation is possible both on the driver's side and on the drive side of the machine.

Fig. 5 shows an example of an application of a motor according to the invention for the direct drive of a drying cylinder 10. The plugged onto a shaft journal 13 drive motor 17 is designed as a permanent magnet synchronous motor or torque motor with integrated liquid cooling. For this purpose, a feed line Z and a return line R are guided through openings 35, 36, which are connected to terminals of the running with cooling channels, windings 29 having stator 27. The rotatably mounted on the shaft journal 13 mounted rotor 24 is designed with permanent magnets 23, which are preferably made on a rare earth basis in order to produce high torques can. A heat-insulating layer 26 between the rotor 24 and the shaft journal 13 prevents excessive heating of the electric motor with the aforementioned liquid cooling. This is particularly important because through the hollow shaft journal 13 hot process steam (with temperatures up to 160 ° C) into the interior of the drying cylinder 10th is to be supplied. For further details of the embodiment of Fig. 5 is on the content of US 4,820,947 respectively. DE G 87 03 410 U1 directed.

A corresponding, direct drive according to the invention by means of a slip-on motor is also suitable for other rotary components of a papermaking machine or coater, for example in guide rollers, stabilizer rollers, etc.

It should be noted that many advantages over the prior art can also be achieved by means of an asynchronous motor. In this case, it is intended, for example, to design the electric motor as a plug-on motor, which is extremely advantageous regardless of the mode of operation of the motor.

It should also be noted that conventionally electric motors for driving components of a paper machine or coating machine are arranged on the so-called drive side. In contrast, it is proposed according to the third aspect of the invention to arrange at least one serving for driving an associated rotary component electric motor on the driver's side. This invention proposal is particularly useful in connection with a conversion of a paper machine or coating machine, such as to adapt to the technical development, if necessary interpreted for higher performance.

In Fig. 6a, the dryer section 200 of a paper machine is schematically shown, which has a plurality of drying cylinders. In Fig. 6a is represented as a representative of all drying cylinders only one drying cylinder 202. The drying cylinder 202 is driven by means of an electric motor 204 which is in rotary drive connection via a gear connection 206 to the drying cylinder 202. The electric motor 204 is arranged on the drive side TS of the machine. The machine points on the drive side a small distance to a wall W on. Worn rotary components, for example drying cylinders or guide rollers of the paper machine, can be exchanged for the guide side FS. On this side, the machine is at a sufficient distance from the next machine or wall.

The drying cylinder is supplied with working steam via a steam supply line 208 and a steam head 210. The steam line 208 and the steam head 210 are arranged on the drive side. The removal of condensate also takes place towards the drive side. A stiffening of the machine is symbolized by longitudinal members 212 and 214.

As part of a rebuild, the electric motor 204 and the transmission link 206 are removed. Instead, on the guide side FS a preferably as a synchronous motor, in particular torque motor, executed plug-on motor 220 is installed, which acts directly on a shaft journal 203 of the drying cylinder 202 in the sense of a direct drive. The steam continues to be supplied via the steam line 208 and the steam head 210.

Fig. 7 shows a dryer section of a dryer section having a plurality of dryer cylinders 202a driven and a plurality of non-driven dryer cylinders 202b and associated guide or guide rollers 216a which are driven and guide rollers 216b which are not driven. The drive motors 220 of the driven drying cylinders 202a are located on the driver's side, whereas the drive motors 222 driving the guide rollers 216a are on the drive side. The drive motors 220 as well as the drive motors 222 are designed as direct drive plug-on motors and on a respective shaft of the respective drying cylinder or the relevant guide or guide roller attached. The drive motors 220 and 222 are preferably designed as synchronous motors, in particular torque motors.

Advantages of the machine according to the invention or of the machine section according to the invention, in the example of the dryer section according to the invention, include the following: The use of a plug-on direct drive motor allows the elimination of mechanical drive elements such as gears, clutches and drive shafts. Depending on requirements in terms of performance and design, several slip motors per dryer group can be used, which can advantageously be arranged on the guide side. Depending on the required torque and other requirements, synchronous motors, in particular torque motors, or asynchronous motors can be used as needed.

When selecting whether a synchronous motor or an asynchronous motor is to be used, the following aspects are of interest. Synchronous motors, in particular torque motors, are particularly suitable for a direct drive and can provide high torques at low speeds. Permanent magnets, in particular rare-earth magnets, are advantageously used for field generation. The motors usually have a compact, robust design, are largely maintenance-free and wear-free and relatively quiet. It is a backlash-free drive possible. A heat dissipation can be done advantageously by a water cooling, so that the motors are also suitable for high ambient temperatures. The motors themselves can have a low moment of inertia and provide a nearly constant torque over a wide speed range. Due to its high dynamics, such an engine can react quickly to control processes. In this case, a high repeat accuracy is possible in principle. Without much effort, a noise encapsulation can be provided, in particular by means of water cooling on a fan unit can be dispensed with, so that in this respect a reduced noise emission can be achieved. There are such engines with high requirements sufficient, reinforced storage available. Due to the direct drive, a drive can be achieved without significant elasticity. Such motors generally have high availability and, moreover, are highly overloadable. It is possible to approach nominal turning positions with the highest accuracy.

Asynchronous motors also have advantageous features. Thus, asynchronous motors are available, which are also designed as Aufsteck- or hollow shaft motor. Asynchronous motors may have a compact design and be designed with an integrated water cooling.

• Es ist wenigstens ein Aufsteckmotor mit einer großen Hohwelle, vorzugsweise mit einer integrierten Wasserkühlung, vorgesehen.
• Auf der Führerseite oder/und auf der Triebseite ist wenigstens ein derartiger Motor vorgesehen.
• Im Falle eines einen Trockenzylinder antreibenden Aufsteckmotors kann der Betriebsdampf dem Inneren des Trockenzylinders vorteilhaft durch die Motorhohlwelle zugeführt werden.
• Für mehrere Aufsteckmotoren kann ein gemeinsamer geschlossener Kühlwasserkreislauf vorgesehen sein, der beispielsweise einen Kühlwasserspeicher mit Förderpumpe und Zuteilgeräten, und Schmutzfilter für Partikel, Strömungswächter, Temperaturwächer, wenigstens eine Blende und wenigstens einen Absperrhahn aufweisen kann. Vorteilhaft kann eine Ausstattung des Kühlwasserkreislaufs mit einer Heizanordnung sein, um eine Vorwärmung des Wassers vor dem Start zu ermöglichen. Vorteilhaft ist eine Ausführung des Kreislaufs in Edelstahl, so dass Korrosionsschutzmittel verzichtbar sind. Es kann eine Kondensatrückführung zum Kühlwasserspeicher oder in den Kreislauf vorgesehen sein. Ein jeweiliger Motor kann über wenigstens ein Spannelement an der Maschinenstuhlung befestigt sein, wobei vorteilhaft eine Drehmomentabstützung an der Maschinenstuhlung erfolgt.

Als besonders vorteilhaft werden noch die folgenden Merkmale für sich alleine und vor allem in Kombination angesehen:

• kompakter Direktantrieb mit spielfreier Kraftübertragung,
• keine mechanischen Antriebsteile zwischen Motor und angetriebener Drehkomponente,
• gleiche Maschinenstuhlung auf der Führerseite und der Triebseite,
• Einbau wenigstens eines oder mehrerer Aufsteckmotoren auf der Führerseite oder/und der Triebseite,
• MöglichkeitderDampfdurchführungoder/und Kondensatorabführung durch den Motor.

Advantageous features of a machine according to the invention or of a machine section according to the invention are the following:

• At least one plug-on motor with a large hollow shaft, preferably with integrated water cooling, is provided.
• On the driver's side and / or on the drive side, at least one such engine is provided.
• In the case of a plug-in motor driving a drying cylinder, the operating steam can advantageously be supplied to the interior of the drying cylinder through the hollow motor shaft.
• For several Aufsteckmotoren a common closed cooling water circuit may be provided, which may have, for example, a cooling water tank with feed pump and metering devices, and dirt filter for particles, flow switches, temperature monitors, at least one panel and at least one stopcock. Advantageously, an equipment of the cooling water circuit with a heating arrangement to allow a preheating of the water before starting. An embodiment of the circuit in stainless steel is advantageous, so that Corrosion inhibitors are dispensable. There may be a condensate return to the cooling water tank or provided in the circuit. A respective motor may be fastened to the machine stool via at least one tensioning element, wherein advantageously a torque support is provided on the machine stool.

The following features are considered to be particularly advantageous on their own and above all in combination:

• compact direct drive with backlash-free power transmission,
• no mechanical drive parts between motor and driven rotary component,
• same machine chair on the driver's side and the drive side,
• Installation of at least one or more slip-on motors on the driver's side and / or the drive side,
• Possibility of steam feedthrough and / or condenser discharge by the motor.

Among other things, the invention provides a machine or a machine section in which there is at least one drive for at least one roller or at least one other rotary component on the driver's side. It is thought, for example, to a former or headbox, a press and a dryer section. Particularly useful in this context is the execution of the relevant drive as plug-on electric motor, which acts as a direct drive motor, ie without PTO shaft or gear and the like, directly to the relevant roller or rotary component. Specifically, the design of the respective drive motor as Aufsteckmotor allows particularly favorable arrangement of the motor on the driver's side, without the accessibility of the operating side (guide page) of the machine or the machine section is disruptively limited. This is especially important in connection with a dryer section.

The solution according to the invention is expedient in particular in connection with the conversion of an existing machine or an existing machine section. For example, in drying cylinders of a dryer section, the steam heads for the steam supply to the drying cylinders are often on the drive side. The proposed drive the drying cylinder or other associated rotary components on the driver's side allows in particular in the case of using a respective Aufsteckmotors that a costly conversion of the steam supply can be omitted from the drive side to the driver's side. The existing steam heads and existing steam supply infrastructure can continue to be used.

• In mindestens einer Trockengruppe der Trockenpartie wird mindestens ein Trockenzylinder oder/und eine Leitwalze auf der Führerseite durch einen Aufsteckmotor angetrieben.
• In jeder Trockengruppe wird mindestens ein Trockenzylinder oder/und wenigstens eine Leitwalze auf der Führerseite durch einen jeweiligen Aufsteckmotor angetrieben.
• Es werden ausschließlich Leitwalzen auf der Führerseite durch Aufsteckmotoren angetrieben.
• Es werden ausschließlich Trockenzylinder auf der Führerseite durch Aufsteckmotoren angetrieben.
• Die Leitwalzen können als Saugwalzen ausgeführt sein und besaugt werden durch den Lagerzapfen, ggf. durch den Aufsteckmotor hindurch, oder durch einen Teil der Umfangsfläche. Letzteres kann beispielsweise über einen so genannten "Duostabilisator" (Voith) erfolgen und wird in der Regel kostengünstiger als eine vergleichsweise teuere Zapfendurchführung sein.
• Bevorzugt ist der (jeweilige) auf der Führerseite angeordnete Elektromotor als so genannter Torquemotor ausgeführt. Durch die hohe Dynamik eines Torquemotors kann ein sehr gutes Steuerverhalten bzw. Regelverhalten erreicht werden, was insbesondere bei hohen Geschwindigkeiten (z. B. v > 1600-1800m/min) und Geschwindigkeitsänderungen (z. B. bei Sortenwechsel) vorteilhaft ist.
• Innerhalb einer Trockengruppe bzw. zwischen Trockengruppen ist eine Abstimmung der Drehzahlen, Leistungen usw. der Antriebe auf elektronischem Wege, speziell eine elektronische Regelung, bevorzugt. Hierdurch wird eine gute Runability und ein guter Wirkungsgrad der Produktion, insbesondere durch Vermeidung von Bahnabrissen, erreicht. Insbesondere kann hierdurch ohne erhöhte Gefahr von Bahnabrissen die Materialbahn in einer leichten SollSpannung gehalten werden, indem die Laufgeschwindigkeit bezogen auf die Umfangs-Drehgeschwindigkeit entlang der Maschine bzw. des Maschinenabschnitts leicht zunimmt.

Among others, the following variants are possible:

• In at least one dryer section of the dryer section, at least one drying cylinder and / or a guide roller on the driver's side are driven by a slip-on motor.
• In each dryer group, at least one drying cylinder or / and at least one guide roller on the driver's side is driven by a respective slip-on motor.
• Only guide rollers on the driver's side are driven by plug-on motors.
• Only drying cylinders on the driver's side are driven by slip-on motors.
• The guide rollers may be designed as suction rollers and be sucked by the bearing pin, possibly by the slip-on motor, or by a part of the peripheral surface. The latter can be done for example via a so-called "Duostabilisator" (Voith) and will usually be cheaper than a comparatively expensive pin execution.
• Preferably, the (respective) arranged on the driver's side electric motor is designed as a so-called torque motor. Due to the high dynamics of a torque motor can be a very good Control behavior or control behavior can be achieved, which is particularly advantageous at high speeds (eg, v> 1600-1800m / min) and speed changes (eg, when changing grades).
• Within a drying group or between dryer groups is a vote of the speeds, powers, etc. of the drives by electronic means, especially an electronic control, preferred. This achieves good runability and good production efficiency, in particular by avoiding web breaks. In particular, this can be held in a slight setpoint voltage without increased risk of web breaks, the material web by the running speed with respect to the circumferential rotational speed along the machine or the machine section slightly increases.

It should also be noted that the arrangement of at least one electric motor on the driver's side is not only in connection with the conversion of an existing machine or an existing machine section of interest, but that it also comes into consideration, newly installed machines from the outset with at least one on the driver's side arranged electric motor, possibly synchronous motor and / or Aufsteckmotor execute. This results in additional degrees of freedom for the designer, which can be suitably taken into account, for example, special space requirements.

For a machine or a machine section for the production and / or finishing and / or other treatment or / and handling of a moving material web, in particular of paper or cardboard, comprising at least one rotary component, which is drivable by at least one electric motor, one with the rotary component in the Sense of a rotary drive coupled or coupled rotor and a directly or indirectly to a stiffening of the machine or the According to one aspect of the invention, among other things, it is proposed that the electric motor is designed or operated as a synchronous motor and that the electric motor is arranged coaxially with the rotary component in association with an axial end region thereof or can be arranged, wherein the rotor or a rotary drive terminal of the same for non-play common rotation rotatably coupled directly to the rotary component or a rotary drive terminal thereof or can be coupled. The rotary component can be, for example, a drying cylinder in a drying section or around the winding core of a winding roll in a machine or a machine section for winding the material web onto the winding core to the winding roll and / or for unwinding the material web from the winding roll.

Claims (29)

Machine or machine section in the form of a dryer section of a machine for producing or / and finishing a moving material web, in particular of paper or cardboard, comprising at least one rotary component in the form of a drying cylinder (10 [Fig. 5]; 202; 202a), which is driven by at least one electric motor (12c, 17 [Fig. 5]) can be driven, the one with the rotary component in the sense of a rotary drive coupled or coupled rotor and a directly or indirectly on a chair of the machine or the machine section or a relative to the frame movably arranged motor mount against rotation having supported stator,
wherein the electric motor is designed or operable as a synchronous motor (12c; 17 [Fig. 5]), and
wherein the electric motor is disposed coaxially with the rotary component in association with an axial end portion thereof, the rotor (24 [Fig. 5]) or a rotary drive terminal (18c) thereof being non-rotatably coupled directly to the rotary component or a rotary drive terminal thereof for substantially backlash-free common rotation or can be coupled. Machine or machine section according to claim 1
characterized in that the rotor (24) with permanent magnets (23), preferably made on the basis of at least one rare earth material, is executed. Machine or machine section according to claim 1 or 2
characterized in that the rotor (24) is annular and arranged radially inside the stator (29). Machine or machine section according to Claim 3, characterized in that the electric motor (17; 220) is plugged or plugged directly onto a shaft journal (13) of the rotary component (10; 202; 202a) serving as rotary drive connection, in the manner of a hollow shaft motor,
wherein the plugged onto the shaft journal electric motor is with its rotor with the shaft journal in positive rotational driving connection. Machine or machine section according to claim 4, characterized in that the shaft journal (13) is designed as a hollow shaft, for example for supplying an operating fluid, possibly process steam, or condensate, into an interior of the rotary component or for discharging a fluid (optionally process steam or condensate ) from the interior. Machine or machine section according to one of Claims 1 to 5, characterized in that the electric motor (12; 12a; 12b; 12c; 17; 220) is of the synchronous motor type referred to as a "torque motor". Machine or machine section according to one of Claims 1 to 6, characterized in that the electric motor (12; 12a; 12b; 12c; 17; 220) is of the type of synchronous motor referred to as a "permanent magnet motor". Machine or machine section according to one of Claims 1 to 7, characterized in that the electric motor (12; 17; 220) has integrated fluid cooling, preferably liquid cooling, most preferably water cooling. Machine or machine section according to claim 8, characterized in that the stator (29) has an integrated fluid cooling, preferably liquid cooling, most preferably water cooling. Machine or machine section according to Claim 8 or 9, characterized by a closed-loop cooling fluid circuit (50) associated with the electric motor, in particular a cooling water circuit, which is preferably provided with a cooling fluid storage arrangement (56) or / and with a heat exchanger arrangement (62) or / and with a filter arrangement ( 70) or / and is carried out with a heating arrangement. Machine or machine section according to one of Claims 8 to 10, characterized in that a plurality of electric motors (11a; 11b; 11c; 11d; 220), in particular a plurality of respectively associated with a different rotary component or assignable electric motors, a common cooling fluid supply, in particular cooling water supply (50) is assigned. Machine or machine section according to claim 10 and 11, that the electric motors (11a; 11b; 11c; 11d; 22O) can be supplied with cooling fluid, in particular cooling water, via a common, closed cooling fluid circuit (50), in particular cooling water circuit. Machine or machine section according to claim 11 or 12, characterized in that the electric motors (11a; 11b; 11c; 11d) are each provided in a separate one of a plurality of parallel-connected cooling fluid branches (52a; 52b; 52c; 54) and a common outlet (60) are arranged. Machine or machine section according to claim 13, characterized in that at least one of the cooling fluid branches (52a; 52b; 52c; 52d) can be individually shut off and / or individually controlled or regulated with regard to the cooling fluid flow and / or with respect to at least one variable of interest, for example fluid temperature or / and Coolant fluid flow, can be monitored and / or that at least one of the cooling fluid branches is designed with its own filter arrangement (70). Machine or machine section according to one of claims 8 to 14, characterized in that in or in the region of the (respective) electric motor (11a) condensate is fed together with the electric motor supplied cooling fluid discharged, in particular in the cooling fluid circuit or cooling fluid branch. Machine or machine section according to one of claims 1 to 15, characterized in that the electric motor (12a; 12b; 12c;) with its motor mount is displaceable along a motor guide track. Machine or machine section according to claim 16,
characterized in that the rotating component can be displaced along a rotational component guide track, and that the motor guide track and the rotational component guide track each other at least partially correspond to a joint displacement of the rotary component and the electric motor. Machine or machine section according to claim 16 or 17,
characterized in that the motor guide track (48 [Fig. 4]) extends at least partially linear. Machine or machine section according to one of claims 16 to 18, characterized in that the motor guide track (30 [Fig. 4]) extends at least in sections arcuately. Machine or machine section according to one of claims 1 to 19, characterized in that the or at least one Electric motor (222) on the drive side (TS) of the machine or the machine section is arranged. Machine or machine section according to one of Claims 1 to 20, characterized in that the or at least one electric motor (220) is arranged on the driver's side (FS) of the machine or of the machine section. Machine or machine section according to one of Claims 1 to 21, characterized in that the rotary drive connection (18; 18a; 18b) of the rotor, on the one hand, and the rotary drive connection (24; 24a) of the rotary component, on the other hand, have a positive coupling which can be engaged and disengaged, in particular a splined shaft Tooth coupling, forming. Machine or machine section according to claim 22, characterized in that one of the form-locking coupling forming rotary drive terminals rotatably on a shaft portion and axially displaceably arranged coupling sleeve (18; 18a; 18b) comprises, on an inner circumference and / or outer circumference entrainment formations (20) with counter-entrainment formations (22) on a coupling sleeve counter portion (24) of the other rotary drive terminal with essentially play-free Positive locking driving engagement can be brought. Machine or machine section according to claim 22 or 23, characterized in that a relative rotary position between driving formations (20) of a rotary drive connection (18) and counter-entrainment formations (22) of the other rotary drive connection (24) prior to engagement of the clutch coupling on the basis of at least one associated rotary encoder can be detected and that the electric motor (12) for engaging by electrical control in the sense of a control and / or regulation defined in a Einkuppel relative rotational position between driving formations and counter-driving formations corresponding rotational position is adjustable. Machine or machine section according to one of claims 1 to 24, characterized by a brake device (32, 34) associated with the electric motor (12), preferably comprising at least one brake disk (32) arranged on a motor output shaft (16). Machine or machine section according to one of claims 1 to 25, characterized in that a plurality of synchronous motors, in particular torque motors executed or operable electric motors (220) is associated with a speed control / regulating arrangement, by means of several associated electric motors matched to each other drehzahlsteuerbar or - preferably - are speed controllable. Machine according to Claim 26, characterized in that a plurality of synchronous motors (220) belonging to a drying group and / or a plurality of synchronous motors assigned to different drying groups are tuned to one another in terms of speed or-preferably-speed-controllable by means of the speed control arrangement. Machine or machine section, according to at least one of the preceding claims 1 to 27, characterized in that the electric motor, at least one drying cylinder drives, by means of Kühlfluidzu- and - outflow, in particular Kühlflüssigkeitszu- and, is coolable. Machine or machine section according to claim 28, characterized in that a cooling fluid supply, in particular cooling fluid supply, for the provision of the cooling fluid, in particular the cooling liquid, with a feed temperature of at least 50 ° C, preferably 60 to 70 ° C, is provided to the electric motor.

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