DE102011075815B3 - A bearing apparatus of a rotary body of a printing press and a method of servicing a bearing apparatus of a rotary body of a printing press - Google Patents

Abstract

The invention relates to a bearing device for a rotary body of a printing machine, the bearing device having a housing, a bearing block that is connected to the housing via at least one linear bearing and carrying a radial bearing, a stop, whereby a force can be exerted on the bearing block by means of at least one hydraulic piston of the actuating device is and / or is exercised and wherein the first adjusting device has a pressure line which connects a pressure source with at least one piston head space of the at least one hydraulic piston and with a valve and wherein a maintenance line is connected to the valve and by means of it is arranged separated or separable from the pressure line and wherein the maintenance line is connected to at least one maintenance chamber, which is partially delimited by at least one side face of the at least one hydraulic piston, and to a drain line, and a method for maintaining a bearing device of a rotation body of a printing machine.

Description

The invention relates to a bearing device of a rotary body of a printing press according to the preamble of claim 1 and a method for servicing a bearing device of a rotary body of a printing press.

In printing presses and in particular in rotary printing presses, a multiplicity of essentially cylindrical rotational bodies, for example rollers or cylinders, are used. On the one hand, these may be rollers or cylinders of inking units or dampening units, but on the other hand also form cylinders and / or transfer cylinders and / or impression cylinders. Such rotary bodies are rotatably mounted in bearings. In this case, different storage devices are used, the adjustment movements allow, for example, to shift a rotational axis of such a rotational body in a direction perpendicular to the axis of rotation. In this way, for example, rotational bodies can be turned off from each other and / or be hired against each other. In particular, such a contact pressure between two contacting bodies of revolution can be adjusted, resulting in a variety of adjustment options for increasing the quality of printed products.

By the DE 10 2008 001 546 A1 and the WO 2005/097504 A2 a bearing device of a rotary body of a printing machine is known, wherein the bearing device comprises a housing, a bearing block connected to the housing via at least one linear bearing, bearing at least one radial bearing, at least one stop and at least one first, arranged on the housing and / or can be arranged adjusting device , wherein by means of at least one actuating element of the first adjusting device, a force in a direction of adjustment on the bearing block is exercised and / or exercised.

The invention has for its object to provide a bearing device of a rotary body of a printing press and a method for servicing a bearing device of a rotary body of a printing press.

The object is achieved by the features of claim 1 and the features of claim 8.

A bearing device of a rotary body, in particular a roller or a cylinder of a printing press, in particular a rotary printing press, has a housing, a bearing block which is connected to the housing via at least one linear bearing and carries at least one radial bearing, at least one stop and at least one first housing arranged on the housing and / or locatable adjusting device, wherein by means of at least one actuating element, preferably at least one hydraulic piston of the first actuating device, a force in a setting direction on the bearing block is exercisable and / or exercised.

An advantage of an embodiment of the invention, wherein the housing has a first opening and in which the first actuating device can be inserted through the first opening in a mounting direction in the housing and / or opposite to the mounting direction of the housing and in which a orthogonal to a Rotation axis of the at least one radial bearing aligned component of the mounting direction is greater than a parallel to the axis of rotation of the at least one radial bearing aligned component of the mounting direction, in particular, that installation and / or removal of the first adjusting device is particularly easy and fast possible and that disassembly of the rotating body is not necessary. This helps to prevent downtime and sources of error. Preferably, the mounting direction has a vertically upwardly facing component, which means that the opening has at least one vertically downwardly facing component, whereby an entry of dirt in the bearing device is reduced or even prevented. Preferably, the mounting direction vertically upward, so that the advantage is particularly pronounced comes to bear. The rotary body is preferably connected to the at least one radial bearing, more preferably via a pin formed on an axial end of the rotary body.

A method of servicing the bearing device of the rotary body of the printing press, wherein in a step at least a first fastener is released and thereby the first actuator is released from the housing and wherein thereafter the first actuator remote from the mounting direction through the first opening of the housing from the housing is, has the said advantage that disassembly of the rotary body is not necessary. Preferably, in a previous step, at least one, until then a force on the bearing block wielding actuator is transferred to a state in which it exerts no force on the bearing block, so that in an advantageous manner disassembly is facilitated.

Preferably, the mounting direction is aligned orthogonal to the axis of rotation of the at least one radial bearing, so that advantageously a particularly space-saving arrangement is possible and very little working space is necessary for maintenance. In particular, then only a few components must be removed in an environment of the rotating body.

Preferably, a projection of the entire first actuating device in the mounting direction in an installed state of the first actuating device is completely enclosed by a border of a projection of the first opening in the mounting direction, so that advantageously a linear movement of the dissolved first actuating device is sufficient for disassembly.

Preferably, a cover, the first opening can be arranged closable, so that advantageously contamination of the bearing device can be reduced or prevented.

Preferably, a minimum surface bounded by edges of the first opening and / or an outer surface of the cover each make up less than 25%, and more preferably less than 10%, of a total boundary surface enveloping the bearing device, thus advantageously providing maintenance the first actuator only a minimal engagement in the bearing device protective housing represents. As a result, their support function and protection function is negligibly affected to a minimum.

Preferably, the adjustment direction has a component which is directed from the axis of rotation of the at least one radial bearing on the stop, so that a fixation of the bearing block is optimized by means of the at least one actuating element and the stop.

Preferably, the first actuating device has at least one connection opening of at least one hydraulic connection, which is oriented in a direction orthogonal to the mounting direction and which is further preferably aligned parallel to the axis of rotation of the at least one radial bearing, so that in an advantageous manner during assembly of the first actuating device a line connection is made, which is automatically sealed when attaching the first adjusting device, for example by tightening at least one screw.

An advantage of an embodiment of the invention, wherein the first adjusting device comprises a pressure line which connects a pressure source with at least one piston head space of the at least one hydraulic piston and with a valve and wherein a maintenance line of the first actuating device is connected to the valve and by means of the valve of the pressure line is arranged separately or separable and in which the maintenance line communicates with at least one, at least partially limited by at least one side surface of the at least one hydraulic piston maintenance chamber and with a drain line, is that thereby rinsing and / or venting of the piston head space are made can start without having to set up an external vent line. In this way, a workload is reduced. Preferably, the piston head space is arranged along the pressure line between the pressure source and the valve, whereby a series connection is created, which allows a safe flushing and / or ventilation of all relevant components. For the same reason, the maintenance chamber is preferably arranged along the maintenance line between the valve and the outflow line.

Preferably, the at least one piston head space of the at least one hydraulic piston is separated from the maintenance chamber of the at least one hydraulic piston by the at least one hydraulic piston itself and at least one seal in contact with the at least one hydraulic piston and separated and / or separable by the valve, so that in Advantageously, this seal from both sides is in contact with a volume which is filled at least during a flushing operation with hydraulic fluid. As a result, a sufficient lubrication of the seal is ensured, even if a stroke of the at least one hydraulic piston in a stroke direction is less than a dimension of the seal in this direction. For example, the stroke of the hydraulic piston in the stroke direction may be 1.5 mm or less with the seal dimension greater than 2 mm in this stroke direction. Since the hydraulic cylinder is preferably designed as a single-acting cylinder, only the piston head space is subjected to a corresponding pressure for movements of the hydraulic piston. There is preferably no piston chamber arranged which is pressurized independently of the piston head space to effect a movement of the hydraulic piston.

Preferably, at least a portion of the drain line is arranged higher in the vertical direction than any side surface of the at least one hydraulic piston delimiting at least one maintenance chamber, so that hydraulic fluid is advantageously always present in the maintenance chambers in the manner of a siphon and the service life of the seal thereby is further increased. Preferably, the pressure line and the at least one piston head space and the maintenance line and the at least one maintenance chamber are completely filled and the drain line at least partially filled with a hydraulic fluid, so that the life of the seals is further increased and no air bubbles impair the functioning of the hydraulic piston. Preferably, the valve is a machine-controlled valve, thereby enabling automation of flushing and / or venting operations.

The maintenance chamber of the at least one hydraulic piston is preferably arranged between two seals which are in contact with the side face of the at least one hydraulic piston in a stroke direction of the at least one hydraulic piston, so that an uncontrolled escape of hydraulic fluid is avoided in an advantageous manner. One of the seals seals the piston head space against the maintenance chamber. This seal must withstand high pressures of up to 180 bar and more. A slight leakage of hydraulic fluid through this seal is unproblematic in terms of contamination, since escaping hydraulic fluid in the maintenance chamber and the service line and finally in the drain line. The other of the seals separates the maintenance chamber from an interior of the housing. Since significantly lower pressures prevail in the maintenance chamber even during a flushing or venting process, no uncontrolled leaks of hydraulic fluid are to be expected.

Preferably, the side surface of the at least one hydraulic piston is formed as a cylinder jacket surface and is in contact with at least two seals whose minimum diameter is at least as large as a diameter of the cylinder jacket surface of the at least one hydraulic piston, so that advantageously a simple production of the piston and a Low wear of the seal is feasible. Preferably, the side surface and / or lateral surface is coated with a chromium coating in order to reduce or prevent friction and thus wear and / or malfunction.

Preference is given to a method for maintenance of the bearing device of the rotary body of the printing machine, wherein hydraulic fluid is conveyed by means of the pressure source in the pressure line of the adjusting device of the bearing device and / or pressurized in the pressure line and wherein the valve of the actuator is opened, so that the pressure line with the maintenance line of the adjusting device is connected and wherein the hydraulic fluid is passed through the pressure line and, connected to the pressure line piston head space of the at least one hydraulic piston of the adjusting device and is passed through the valve and subsequently through the maintenance line and by at least one, partially from a side surface of the at least one hydraulic piston limited maintenance chamber and is passed through the drain line. This method has the advantage that a venting and / or flushing of the pressure line and the piston head space with a lubrication of a maintenance chamber and thus with a maintenance of the seals of the at least one hydraulic piston is connected. The use of the valve eliminates the need for an additional bleed line to be installed with each service. By using a machine-controlled valve, manual access, for example by means of a tool, is not necessary, as a result of which the valve can also be used and maintained successfully in places with limited space available.

Preferably, the hydraulic fluid is passed from the drain line through a filter in a reservoir, which is further preferably connected to the pressure source and / or the pressure line, so that advantageously a consumption of hydraulic fluid is kept low by a feedback system and at the same time a cleaning of the Hydraulic fluid and / or the pressure line and / or the piston head space and / or the maintenance chamber and / or the maintenance line is made.

Preferably, the valve is then closed again and the hydraulic fluid in the pressure line and in the at least one piston head space with a pressure of about 50 bar, more preferably applied between 100 bar and 200 bar, so that advantageously a sufficiently high force is generated, to hold the rotary body precisely in its position, for example by pressing the bearing block against the stop.

Overall, assembly work and maintenance are simplified so that downtime of the printing press can be minimized. In particular, this is achieved because comparatively few components for replacement and / or maintenance of the first adjusting device must be dismantled, in particular not mounted by means of the bearing device rotation element itself. For example, in the case of a forme cylinder or a transfer cylinder can be avoided in particular in compact printing machines considerable effort become. Furthermore, it is ensured that only a small space requirement for the storage device and its maintenance is necessary. Automatic venting and / or flushing can be achieved by using a controllable valve. This is achieved in particular by the fact that a piping system for flushing and venting purposes does not have to be rebuilt, but only switched over. In particular, a rinse offers the advantage that the hydraulic fluid used is renewed and that dirt particles are removed.

Preferably, the housing consists of at least two parts, each defining connecting lines and / or connecting surfaces. Connecting lines and / or connecting surfaces, which are arranged laterally and / or on top of the housing, are preferably sealed with a sealing agent. By the alignment of the first opening and the mounting direction maintenance of the first actuator is possible without removing such sealant and / or re-attach. This reduces maintenance and further increases reliability.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Show it:

1 a schematic representation of a bearing device with a closed housing;

2 a schematic perspective view of the storage device according to 1 ;

3 a schematic representation of the storage device with partially removed housing;

4 a schematic perspective view of the storage device according to 3 ;

5 a schematic representation analog 3 with further details;

6 a schematic representation of the storage device with closed except for a first opening housing;

7 a schematic perspective view of the storage device according to 6 ;

8th a schematic sectional view of the bearing device according to the section line IV-IV 3 ;

9 a schematic, slightly different from the other figures depicting a bearing device and its system of hydraulic lines, which in this illustration for the sake of clarity connections are shown elsewhere, as in the remaining figures.

A printing press, for example a rotary printing press, has at least one printing unit. The at least one printing unit has at least one rotational body. The at least one rotary body is designed, for example, as a roller and / or cylinder of an inking unit or as a roller and / or cylinder of a dampening unit or as a forme cylinder, preferably a plate cylinder or as a transfer cylinder, preferably blanket cylinder and / or as an impression cylinder. The rotational body preferably has a journal on at least one axial end and preferably on both axial ends. The at least one axial end and / or preferably the at least one pin is via a bearing device 01 stored on a side frame of the printing press. Further details on the printing machine containing the bearing device and on the bearing device itself can, insofar as they do not contradict what was stated above and below, of the patent application WO 2005/097504 A2 be removed. The content of the patent application WO 2005/097504 A2 Accordingly, as far as it does not differ from this patent application and / or as far as appropriate, is included in this patent application.

The storage device 01 has at least one housing 02 and a storage block 03 on. The storage block 03 has at least one radial bearing 04 on, preferably as a rolling bearing 04 is trained. In the radial warehouse 04 the rotational body is mounted and / or storable, ie that the rotational body and preferably its pin on the at least one radial bearing 04 with the storage device 01 and in particular with the position block 03 communicates. The storage block 03 is relative to the housing 02 preferably arranged linearly movable. The storage block 03 is over at least one and preferably at least two linear bearings 06 stored. In this way, a direction of adjustment A of the bearing block 03 and thus also the rotation body set. The adjustment direction A has at least one component in a direction perpendicular to a rotation axis 08 of the radial bearing 04 on. Preferably, the direction of adjustment A is orthogonal to the axis of rotation 08 of the radial bearing 04 , The storage block 03 is arranged movably in and / or counter to the direction of adjustment A.

A first adjusting device 07 is preferably on the housing 02 releasably secured and / or fastened. The storage device 01 also has at least one attack 09 on. The stop 09 is preferably in different positions relative to the housing 02 formed fixable and causes in this way an adjustable limit of a travel of the bearing block 03 in the direction of adjustment A. The adjustment direction A preferably has at least one radial bearing 04 to a contact point. The contact point is a point at which the rotary body can be brought into contact with another body, in particular a further rotary body, or is in contact. A bearing unit comprises the linear bearings 06 , the radial bearing 04 and the storage block 03 , Preferably, the storage unit is in total in the housing 02 arranged. Every linear bearing 06 has at least one on the housing 02 fixed linear bearing part 12 and one on the storage block 03 fixed linear bearing part 13 on. The linear bearings are preferred 06 as a rolling bearing 06 educated. Preferably, accordingly, the are on the housing 02 fixed linear bearing parts 12 via rolling elements with those on the bearing block 03 fixed linear bearing parts 13 in contact. But it is also a direct one Contact conceivable when the linear bearings 06 for example, as a plain bearing 06 are formed.

A second adjusting device 11 serves to adjust the limitation of the travel of the storage block 03 and / or a setting of one of the stop 09 on the storage block 03 applied force. The stop is preferred 09 inside the case 02 arranged. Further preferred is also the second adjusting device 11 inside the case 03 arranged. The stop 09 has a first, preferably flat stop surface 17 on, which has a surface normal, which forms an angle with the direction of adjustment A, which is between 1 ° and 89 °, preferably between 1 ° and 40 ° and more preferably between 1 ° and 10 °. The storage block 03 has a second, preferably flat stop surface 21 on, parallel to the first stop surface 17 of the stop 09 is arranged. During a movement of the bearing block 03 in the direction A to the stop 09 it comes thus preferably to a flat contact of the first stop surface 17 and the second stop surface 21 and thus to a flat contact of the bearing block 03 and the stop 09 , A movement of the stop 09 in a direction of adjustment B, which is preferably orthogonal to both the axis of rotation 08 of the radial bearing 04 as well as to the direction A of the bearing block 03 is located, then causes a shift of a stop position of the stop 09 in or against the direction of adjustment A and thus a change in a maximum travel of the bearing block 03 ,

Due to the small angle between the surface normal of the first stop surface 17 and the direction A of the bearing block 03 works despite comparatively large, by the first adjusting device 07 exerted forces parallel to the direction of adjustment A only a comparatively small force in the preferred orthogonal to adjustment direction B of the stop 09 , An unintentional slipping of the stop 09 is avoided. The second adjusting device 11 has pneumatic and / or hydraulic and / or electric drive means, for example a spindle drive. The second adjusting device 11 can in addition to the execution of the patent application WO 2005/097504 A2 for example as in the patent application DE 10 2008 001 546 A1 be executed described.

The first adjusting device 07 is configured to apply a force to the bearing block 03 can exercise that of the first adjusting device 07 preferably in the direction of adjustment A on the stop 09 is aligned too. The first adjusting device 07 has at least one and preferably at least two actuators 14 on, the preferred as a reciprocating piston 14 and more preferably as a hydraulic piston 14 are formed. But there are also actuators 14 conceivable, which are movable for example by means of a torque-controlled electric motor. These actuators 14 preferably work directly with the bearing block 03 together. A supply or removal of a fluid, for example a pneumatic medium or preferably a hydraulic fluid causes an adjustment of the at least one actuating element 14 in or against the direction of adjustment A. At one of the stop 09 opposite side of the bearing block 03 , preferably between the at least two actuators 14 , there is an overload protection 18 with a spring element 19 , which serves as the travel limit of the storage block 03 opposite to the direction of A serves. The spring element 19 is preferred as a plate spring package 19 educated. This overload protection 18 preferably has an adjustment 26 on, with which the track boundary of the camp view 03 can be adjusted. The adjustment element 26 For example, it can have recesses which serve to attach a tool, for example a slot or a hexagonal recess. The adjustment element is preferred 26 completely inside the case 02 and in particular completely within the first actuator 07 arranged. The housing 02 preferably has a corresponding insertion opening for the introduction of the tool.

The storage device 01 is preferably designed as a unit mountable as a whole. In each spatial direction, maximum dimensions of the bearing device are preferred 01 through the housing 02 specified. In other words, that means the case 02 specifies a maximum volume and that all components of the storage device 01 are arranged within this volume. The first adjusting device 07 is about at least a first fastening device 16 , preferably at least a first screw 16 on the housing 02 releasably secured. The housing 02 has at least a first opening 22 on. A projection of the entire first actuator 07 in a mounting direction M, in an installed state, a periphery of a projection of the first opening becomes 22 completely enclosed in this mounting direction M. This means that the first adjusting device 07 provided their connection to the housing 02 by means of the at least one first fastening device 16 is dissolved, in or against the mounting direction M in the housing 02 into and / or out of the housing 02 is movable out. An orthogonal to the axis of rotation 08 the at least one radial bearing 04 aligned component of the mounting direction M is greater than one parallel to the axis of rotation 08 the at least one radial bearing 04 aligned component of the mounting direction M. Preferably, the mounting direction M on a vertically upward-facing component. More preferably, the mounting direction M vertically upward. Preferably, the mounting direction M is orthogonal to the axis of rotation 08 of at least one radial bearing 04 aligned. The mounting direction M is preferably orthogonal to the axis of rotation 08 of the radial bearing 04 and more preferably also orthogonal to the direction of adjustment A of the bearing block 03 ,

The first opening 22 is preferred by a cover 23 designed lockable, the cover 23 by means of a fastener 24 , preferably by means of a screw 24 detachable with the housing 02 connected is. To remove the cover 23 from the case 02 and for attaching the cover 23 on the housing 02 is preferably no movement of the cover 23 in or against the direction of the axis of rotation 08 of the radial bearing 04 necessary. A minimal, from edges of the first opening 22 limited area and / or an outer surface of the cover 23 each preferably makes up less than 25%, and more preferably less than 10%, of the total storage device 01 enveloping boundary surface. The storage device 01 enveloping boundary surface is a minimum boundary surface of a storage device 01 completely enclosing volume.

A corresponding preferred method for maintenance of the storage device 01 has at least one step, in which the at least one first fastening device 16 is solved and thereby the first adjusting device 07 from the case 02 is solved, wherein thereafter the first adjusting device 07 opposite to the mounting direction M through the first opening 22 of the housing 02 out of the case 02 is removed and preferably the rotational body during the entire process on the at least one radial bearing 04 with the storage device 01 remains connected. At least in one previous step, at least one force, until then a force on the bearing block, is preferred 03 exercising actuator 14 transferred to a state in which there is no force on the bearing block 03 exercises. If necessary, first the fastening means 24 solved and the cover 23 away.

The first adjusting device 07 preferably has a system of hydraulic lines 37 ; 39 ; 41 ; 44 and preferably has at least one hydraulic connection 31 and more preferably a first hydraulic connection 31 and a second hydraulic connection 32 on. These hydraulic connections 31 ; 32 be used for movements of the first actuator 07 dissolved in or against the mounting direction M and / or disconnected. The housing 02 has each hydraulic connection 31 ; 32 one each with a hydraulic line 33 of the housing 02 connected and / or connectable connection opening 34 on. In an installed position of the first adjusting device 07 is every such connection opening 34 of the housing 02 a conduit opening 36 the first adjusting device 07 arranged opposite. If the at least one first fastening device 16 activated, so for example, the at least one first screw 16 attracted to the first actuator 07 relative to the housing 02 to fix, so is in each case a connection opening 34 of the housing 02 against a conduit opening 36 the first adjusting device 07 pressed and a hydraulic fluid tight connection between the system of hydraulic lines 37 ; 39 ; 41 ; 44 the first adjusting device 07 and the hydraulic lines 33 of the housing 02 produced. Preferably has the connection opening 34 of the housing 02 and / or the conduit opening 36 of the first actuator 07 at least one seal on. There are no additional measures necessary, but at a fixing the first actuator 07 on the housing 02 Dense line connections are automatically made for hydraulic fluid.

The hydraulic lines are preferred 33 of the housing 02 on one of the first adjusting device 07 opposite rear side of the housing 02 directly or via further hydraulic lines 51 connected to other components, preferably in an analogous manner, for example with a reservoir and / or a pressure source 43 and / or a waste container. The storage device 01 is preferably arranged on a side frame of the printing press such that the back of the housing 02 at least partially even when mounted on the side frame storage device 01 is accessible, for example, by an already arranged opening of the side frame through which protrudes a part of the rotary body and / or a drive train and / or a register adjustment, is extended by a corresponding recess. In this way, for example, the at least one first screw 16 be solved without the storage device 01 detach from the side frame and in particular without removing the rotary body.

The at least one connection opening 34 is preferably aligned in a direction orthogonal to the mounting direction M direction. Preferably, the connection openings 34 and the pipe openings 36 in the direction of the axis of rotation 08 of the radial bearing 04 , Other orientations are also conceivable. Preferably, the connection openings 34 and the pipe openings 36 in a same direction as a threaded axis of the at least one first screw 16 , In this way, a particularly tight connection is made. The thread axis of such a screw 16 is preferably orthogonal to the direction of adjustment A of the bearing block 03 aligned, more preferably parallel to the axis of rotation 08 of the radial bearing 04 ,

The system of hydraulic lines 37 ; 39 ; 41 ; 44 the first adjusting device 07 has several hydraulic lines 37 ; 39 ; 41 ; 44 on. One as pressure line 37 trained hydraulic line 37 the first adjusting device 07 is with a pressure source 43 connected or connectable, preferably via at least one hydraulic line 33 of the housing 02 and at least one connection opening 34 of the housing 02 and at least one conduit opening 36 the first adjusting device 07 , The pressure line 37 connects the pressure source 43 with at least one piston bottom space 44 of the at least one hydraulic piston 14 and with a valve 38 , The piston floor space 44 also provides a hydraulic line 44 dar. The valve 38 closes the pressure line 37 in a closed operating condition pressure-tight and tight in particular for the hydraulic fluid. At one through the valve 38 from the pressure line 37 separable and / or separate connection of the valve 38 is one as a maintenance line 39 trained hydraulic line 39 connected, so by means of the valve 38 from the pressure line 37 arranged separately or separable. The valve is preferred 38 at a highest point of the pressure line 37 and / or at a highest point of the service line 39 arranged. The maintenance line 39 stands apart from the valve 38 and / or the pressure line 37 with at least one, of at least one preferably chromed side surface 46 of the at least one hydraulic piston 14 limited, as a maintenance chamber 41 trained hydraulic line 41 and a drainage line 42 in connection. The maintenance chamber 41 is preferably annular and the hydraulic piston 14 formed enclosing. The piston bottom space is preferred 44 along the pressure line 37 between the pressure source 43 and the valve 38 arranged, Preferred is the maintenance chamber 41 along the maintenance line 39 between the valve 38 and the drainage line 42 arranged.

The at least one piston bottom space 44 of the at least one hydraulic piston 14 is from the maintenance chamber 41 of the at least one hydraulic piston 14 on the one hand by the at least one hydraulic piston 14 itself and at least one with the at least one hydraulic piston 14 in contact seal 47 and on the other hand through the valve 38 separated and / or separable. The seal is preferably formed in the form of an O-ring and in an annular groove 49 the first adjusting device 07 arranged.

The at least one hydraulic piston 14 has a side surface 46 on, which is parallel to the stroke direction of the hydraulic piston 14 extends and preferably with at least one, for example as a support ring 48 trained sliding guide 48 is in contact to an exact location and guidance of the hydraulic piston 14 to ensure. At least a section of the drainage line 42 is located higher in the vertical direction than any one, at least one maintenance chamber 41 limiting side surface 46 of the at least one hydraulic piston 14 , The drain line thus forms a siphon and ensures that the maintenance chambers 41 and the service line are filled with hydraulic fluid and remain. At the latest after a rinsing process and / or a deaeration process has been carried out for the first time, the pressure line is 37 and the at least one piston bottom space 44 and the maintenance line 39 and the at least one maintenance chamber 41 completely and the drainage line 42 at least partially filled with a hydraulic fluid. In the stroke direction of the hydraulic piston 14 are preferably at least two seals 47 arranged one behind the other and form a graduated sealing system. The maintenance chamber 41 of the at least one hydraulic piston 14 is in the stroke direction of the at least one hydraulic piston 14 seen between two such with the side surface 46 of the at least one hydraulic piston 14 in contact seals 47 arranged. The side surface is preferred 46 of the at least one hydraulic piston 14 as cylinder jacket surface 46 trained and stands with at least two seals 47 in contact, whose minimum diameter is at least as large as a diameter of the cylinder jacket surface 46 of the at least one hydraulic piston 14 , Hydraulic circuits are, for example, according to the patent application WO 2005/097504 A2 executable.

A corresponding preferred method for the maintenance of the adjusting device 07 includes at least one step in the hydraulic fluid by means of the pressure source 43 in the pressure line 37 funded and / or in the pressure line 37 is pressurized, the valve 38 before or after or during that time is opened so that the pressure line 37 with the maintenance line 39 is connected and the hydraulic fluid through the pressure line 37 and by, with the pressure line 37 connected piston bottom space 44 at least one hydraulic piston 14 the adjusting device 07 and then through the valve 38 and then through the service line 39 and through the at least one, partly from the side surface 46 of the at least one hydraulic piston 14 limited maintenance chamber 41 and through the drainage line 42 is directed. As a result, the entire hydraulic fluid within the hydraulic lines is preferred 37 ; 39 ; 41 ; 44 the first adjusting device 07 replaced and vented. The hydraulic fluid is preferably from the drain line 42 out of a filter in a reservoir, preferably with the pressure source 43 is connected and from the preferred before and / or after hydraulic fluid in the pressure line 37 has been and / or is being promoted. Following is preferred the valve 38 closed again and the hydraulic fluid in the pressure line 37 and in the at least one piston bottom space 44 at a pressure of about 50 bar, preferably between 100 bar and 200 bar applied, preferably by means of the already used for the method of maintenance pressure source 43 , A pressure of 1 bar is a pressure of 100 kPa.

In a preferred embodiment, such a flushing and / or venting process is carried out automatically, for example regularly. Thus, at intervals of, for example, a week without major manual effort, a maintenance of the storage device 01 be performed.

LIST OF REFERENCE NUMBERS

01

bearing device

02

casing

03

bearing block

04

Radial bearings, roller bearings

05

06

Linear bearings, rolling bearings, plain bearings

07

Setting device, first

08

Rotation axis ( 04 )

09

attack

10

11

Setting device, second

12

Linear bearing part ( 06 )

13

Linear bearing part ( 06 )

14

Actuator, reciprocating piston, hydraulic piston

15

16

Fastening device, screw, first

17

Stop surface ( 09 ), first

18

Overload protection

19

Spring element, disc spring package ( 18 )

20

21

Stop surface ( 03 ), second

22

Opening, first ( 02 )

23

cover

24

Fastener, screw

25

26

Adjustment element ( 18 )

27

28

29

30

31

Hydraulic connection, first

32

Hydraulic connection, second

33

Hydraulic line ( 03 )

34

Connection opening ( 33 )

35

36

Conduit opening ( 07 )

37

Hydraulic line, pressure line ( 07 )

38

Valve

39

Hydraulic line, service line ( 07 )

40

41

Hydraulic line, maintenance chamber ( 07 )

42

drain line

43

pressure source

44

Hydraulic line, piston bottom space ( 07 )

45

46

Side surface, cylindrical surface ( 14 )

47

poetry

48

Support ring, sliding guide

49

ring groove

50

51

hydraulic line

A

setting direction

B

Setting direction

M

mounting direction

Claims (10)

Storage device ( 01 ) of a rotary body of a printing press, wherein the bearing device ( 01 ) a housing ( 02 ), one, via at least one linear bearing ( 06 ) with the housing ( 02 ), at least one radial bearing ( 04 ) bearing block ( 03 ), at least one attack ( 09 ) and at least a first, on the housing ( 02 ) and / or can be arranged adjusting device ( 07 ), wherein by means of at least one hydraulic piston ( 14 ) of the first actuator ( 07 ) a force on the bearing block ( 03 ) is exercisable and / or exercised, characterized in that the first adjusting device ( 07 ) a pressure line ( 37 ) having a pressure source ( 43 ) with at least one piston bottom space ( 44 ) of the at least one hydraulic piston ( 14 ) and with a valve ( 38 ) and that a maintenance line ( 39 ) with the valve ( 38 ) and by means of the valve ( 38 ) from the pressure line ( 37 ) is arranged separately or separable and that the maintenance line ( 39 ) with at least one, partly of at least one side surface ( 46 ) of the at least one hydraulic piston ( 14 ) limited maintenance chamber ( 41 ) and with a drain line ( 42 ). Bearing device according to claim 1, characterized in that at least a portion of the discharge line ( 42 ) is arranged higher in the vertical direction than each, at least one maintenance chamber ( 41 ) limiting side surface ( 46 ) of the at least one hydraulic piston ( 14 ). Bearing device according to claim 1, characterized in that the at least one piston head space ( 44 ) of the at least one hydraulic piston ( 14 ) from the maintenance chamber ( 41 ) of the at least one hydraulic piston ( 14 ) on the one hand by the at least one hydraulic piston ( 14 ) itself and at least one with the at least one hydraulic piston ( 14 ) in contact ( 47 ) and on the other hand through the valve ( 38 ) is separate and / or separable. Bearing device according to claim 1, characterized in that the pressure line ( 37 ) and the at least one piston bottom space ( 44 ) and the maintenance line ( 39 ) and the at least one maintenance chamber ( 41 ) completely and the drain line ( 42 ) at least partially filled with a hydraulic fluid. Bearing device according to claim 1, characterized in that the maintenance chamber ( 41 ) of the at least one hydraulic piston ( 14 ), in a stroke direction of the at least one hydraulic piston ( 14 ), between two with the side surface of the at least one hydraulic piston ( 14 ) in contact seals ( 47 ) is arranged. Bearing device according to claim 1, characterized in that the side surface ( 46 ) of the at least one hydraulic piston ( 14 ) as a cylinder surface ( 46 ) is formed and with at least two seals ( 47 ) is in contact whose minimum diameter is at least as large as a diameter of the cylinder surface ( 46 ) of the at least one hydraulic piston ( 14 ). Bearing device according to claim 1, characterized in that the housing ( 02 ) a first opening ( 22 ) and that the first adjusting device ( 07 ) through the first opening ( 22 ) in an assembly direction (M) inserted into the housing and / or against the mounting direction (M) from the housing ( 02 ) is removable and that an orthogonal to a rotation axis ( 08 ) of the at least one radial bearing ( 04 ) aligned component of the mounting direction (M) is greater than a parallel to the axis of rotation ( 08 ) of the at least one radial bearing ( 04 ) aligned component of the mounting direction (M). Method for maintaining a storage device ( 01 ) of a rotary body of a printing machine, wherein hydraulic fluid by means of a pressure source ( 43 ) in a pressure line ( 37 ) an actuating device ( 07 ) of the storage device ( 01 ) and / or in the pressure line ( 37 ) is pressurized and wherein a valve ( 38 ) the actuator ( 07 ) is opened so that the pressure line ( 37 ) with a maintenance line ( 39 ) the actuator ( 07 ) and wherein the hydraulic fluid through the pressure line ( 37 ) and by one, with the pressure line ( 37 ) connected piston bottom space ( 44 ) at least one hydraulic piston ( 14 ) the actuator ( 07 ) and then through the valve ( 38 ) and then through the maintenance line ( 39 ) and by at least one, partly from a side surface ( 46 ) of the at least one hydraulic piston ( 14 ) limited maintenance chamber ( 41 ) and through a drain line ( 42 ). A method according to claim 8, characterized in that the hydraulic fluid from the drain line ( 42 ) is passed through a filter in a reservoir. Method according to claim 8, characterized in that subsequently the valve ( 38 ) is closed again and the hydraulic fluid in the pressure line ( 37 ) and in which at least one piston bottom space ( 44 ) is subjected to a pressure of over 50 bar.

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