EP3030790B1 - Geared compressor and assembly method - Google Patents

Geared compressor and assembly method Download PDF

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Publication number
EP3030790B1
EP3030790B1 EP14758844.6A EP14758844A EP3030790B1 EP 3030790 B1 EP3030790 B1 EP 3030790B1 EP 14758844 A EP14758844 A EP 14758844A EP 3030790 B1 EP3030790 B1 EP 3030790B1
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EP
European Patent Office
Prior art keywords
compressor
gco
casco
sup2
sup1
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Not-in-force
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EP14758844.6A
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German (de)
French (fr)
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EP3030790A1 (en
Inventor
Jan Weule
Fredi Janz
Axel Spanel
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Siemens AG
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Siemens AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/052—Axially shiftable rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/163—Combinations of two or more pumps ; Producing two or more separate gas flows driven by a common gearing arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps

Definitions

  • the invention relates to a transmission compressor comprising a transmission and at least one compressor designed as a turbo compressor, wherein the transmission for driving the compressor, a compressor drive shaft, the torque transmitting connected to a rotatable about an axis of rotation X formed impeller of the compressor, wherein the compressor has a housing the housing has projections for supporting on supports of the gear compressor.
  • the invention is concerned with a method for assembling a gear compressor, in particular a gear compressor of the type defined, wherein stepwise a gear with a rotatable about a rotation axis impeller of the gear compressor torque-transmitting are provided and then a compressor housing in the axial direction of the gearbox is introduced that in the axial end position of this movement, the impeller is surrounded by the compressor housing.
  • Gear compressor of the type defined are already known from the German patent DE 44 23 784 C2 known.
  • the flow-guiding housing of such transmission compressors which are also referred to as process gas radial turbines, are usually carried out with vertical nozzle position.
  • Larger dimensions of the compressor housing pose a challenge during assembly, since a common mounting method provides that the compressor housing via the impeller - ie the impeller progressively surrounding - to the transmission laterally or in the axial direction of the impeller rotation axis, is introduced.
  • This remains between the compressor housing and on the Gearbox already mounted impeller usually a radial clearance of only a few millimeters, eg 5mm, so that a correspondingly accurate management of this axial assembly movement under construction site conditions means a complex challenge.
  • the invention has set itself the task of developing the initially defined gear compressor or the initially defined assembly method such that the assembly of the compressor housing of a gear compressor can be done safely even under site conditions.
  • a transmission compressor which comprises a transmission (GE) and at least one compressor designed as a turbocompressor, wherein the transmission for driving the compressor comprises a compressor drive shaft, which compressor drive shaft is connected to transmit torque to a rotatable about an axis of rotation impeller of the compressor, wherein the Compressor has a compressor housing.
  • GE transmission
  • the transmission for driving the compressor comprises a compressor drive shaft, which compressor drive shaft is connected to transmit torque to a rotatable about an axis of rotation impeller of the compressor, wherein the Compressor has a compressor housing.
  • the direction indication "axially” - unless otherwise stated - means the axial direction the axis of rotation of an impeller of the compressor which is arranged in the compressor housing
  • the sliding bearing according to the invention allows a movement of the compressor housing from an operating position out into a service position in which the compressor impeller or compressor impeller is accessible from the outside for maintenance and a method of the compressor housing from this service position out into the operating position.
  • the gear compressor comprises two bearing elements, namely a first bearing element between a first Anformung on the compressor housing and a first edition of the gear compressor and a second bearing element between a second Anformung and a second edition of the gear compressor.
  • These two bearing elements each allow a movement the compressor housing in the direction of the axis of rotation of the impeller and are preferably arranged radially spaced, wherein the radial spacing is oriented such that there is a horizontal distance between the axis of rotation and the plain bearings, wherein on each horizontal side of the axis of rotation a bearing element is provided.
  • Such an arrangement reliably prevents tilting of the compressor housing about an axis parallel to the axis of rotation and naturally serves the vertical support of the weight of the compressor housing.
  • the bearing elements each have at least one fixing element, by means of which the axial position can be determined.
  • the bearing elements can be used not only for assembly purposes, but also as a regular support for capturing the weight and any operating torques on the compressor housing in operation.
  • the respective bearing element is provided with a displacement device.
  • the displacement device can expediently be in the form of a threaded rod with corresponding elements, which preferably have threaded bores, so that, for example, a rotation of the threaded rod causes an axial offset of the compressor housing on the respective bearing element.
  • a displacement device with threaded drive in the axial movement device is easily fixed, for example by means of lock nuts or other rotation on the threaded rod.
  • a hydraulic system for driving the axial displacement may be provided.
  • the supports are each part of a support, which are attached to a base plate of the gear compressor supporting, on which base plate, the transmission is supported or attached.
  • the support is not directly attached to a housing of the transmission - e.g. attached to a side wall - fixed so that it can not come to a deformation of the gear housing and thus to a possible offset of the compressor shaft due to the weight of the compressor housing.
  • a center guide is provided, which is formed with a fixed to the transmission or the base guide guide such that blocks a horizontal movement in the radial direction of the compressor housing is.
  • An additional function of this center guide is advantageous in that the guide guide is designed such that an axial mobility of the center guide in the guide guide is limited to relative thermal expansion of the components of the gear compressor. In this way, not only axial movement of the compressor housing is blocked to a greater extent than the relative thermal expansion, but also prevents the compressor housing is rotatable or tiltable relative to the other components of the gear compressor about an axis perpendicular to the axis of rotation. The tilting is therefore prevented because in conjunction with the axial fixing possibility of the sliding bearing with the blockage of an axial movement in the center guide a three-point spatial fixation of the compressor housing is given.
  • the inventive method for mounting has the advantage that initially the compressor housing can be placed at a safe axial distance to the already attached to the gearbox by means of a drive shaft impeller with its projections on the supports.
  • the compressor housing on the one hand is first securely supported vertically with its weight and on the other hand movable in the axial direction, so that an axial movement with progressive increasing environment of the impeller through the compressor housing without the use of a particularly precise working crane is possible.
  • An advantageous development of the invention provides that after the approach of the compressor housing to the transmission under storage by means of the sliding bearing and reaching the axial end position, the bearing elements are determined by means of respectively associated fixing devices in its axial position.
  • On the bearing elements or plain bearings precautions or mold elements may be formed which support a tilting of the compressor housing perpendicular to the axis of rotation. It is advantageously provided after the displacement of the compressor housing in the axial end position, this to change a tilting movement of the compressor housing during the axial movement preventing mold elements such that the support is deactivated against tilting.
  • these form elements may have screws or threaded rods whose rotation leads to the fact that is no longer supported against a corresponding tilting movement of the sliding bearing.
  • This deactivation of the tilt prevention advantageously takes place after a method step of fixing a center guide vertically below the axis of rotation on the compressor housing in a guide guide in the axial direction, so that the tilt prevention is taken over by the center guide during operation.
  • FIG. 1 shows a perspective schematic representation of components of the transmission compressor according to the invention GCO, which are significant to the invention. Components of minor importance or significance for the invention are either only symbolically indicated or not shown.
  • geometrical details such as axial, radial, circumferential direction, tangential always refer to the one axis of rotation X of an impeller IMPCO of a compressor CO1 - unless otherwise stated.
  • gear compressor GCO includes a transmission GE (which is shown only with a lower housing part) and here reproduced by way of example compressor CO1 (which is shown here only as a compressor housing CASCO and symbolically indicated as an impeller IMPCO).
  • compressors CO1 shown as an example are driven by the transmission GE more compressors.
  • gear compressor GCO In the embodiment of the gear compressor GCO shown here, it is provided that in addition to the illustrated compressor CO1 another compressor is arranged next to the gear GE and on the of the viewer of the FIG. 1 averted side of the transmission GE also two compressors are provided, all compressors are driven by the common gear GE.
  • it is an essential feature of a gear compressor GCO that there is a central gear GE, which has different output shafts that serve the drive of different compressors.
  • the transmission compressor GCO has a base plate BP to which the transmission GE and the compressor CO1 are fixed and supported vertically.
  • a preferred field of application of the invention are compressors CO1, which have such a heavy compressor housing CASCO, that it would require either special reinforcing measures on the gear GE, one would attach the housing CASCO directly to the gear GE or it to deformations on the housing of the transmission GE lead, which would adversely affect the correct position of the output shafts or the waves of the compressor CO1 and thus would lead to peculiarities on the respective contact pattern of the gears in the transmission GE to gears.
  • FIG. 1 provided that the compressor housing CASCO is supported by formations SUPCAS1, SUPCAS2 vertically on supports SUP1, SUP2 on both sides of the axis of rotation X, which supports SUP1, SUP2 are supported directly on the base plate BP and secured there.
  • the projections SUPCAS1, SUPCAS2 are provided in the illustrated perspective to the right of the axis of rotation X as first projections SUPCAS1 and to the left of the axis of rotation X as second projections SUPCAS2.
  • first projections SUPCAS1 and second projections SUPCAS2 which are each arranged axially one behind the other, engage the compressor housing CASCO in vertical support. This axial double support serves to prevent a tilting of the compressor housing CASCO about an axis perpendicular to the axis of rotation X.
  • the three-point bearing realized thereby effectively prevents tilting of the compressor housing CASCO about an axis perpendicular to the axis of rotation X.
  • the assembly method according to the invention provides that, in a first step ST1, the compressor housing CASCO, for example about 12 tons, is placed on the supports SUP1, SUP2 by means of a crane in vertical alignment with the projections SUPCAS1, SUPCAS2 provided on the compressor housing CASCO ,
  • a bearing unit BE designed in each case as a plain bearing unit SU1, SU2 is first fastened to the supports SUP1, SUP2.
  • the sliding bearing unit SU1 comprises a sliding surface SLS, which is able to slide on a contact surface CSF of the respective support SUP1, SUP2.
  • the sliding bearing unit SU1, SU2 also includes a vertical adjustment plate VP, by means of which the height orientation of the compressor housing CASCO is determined.
  • a U-shaped holder HO serves to attach the molding SUPCAS1, SUPCAS2 to the sliding bearing unit SU1, SU2 with vertical interposition of the vertical adjustment plate VP.
  • the nuts on the fixing elements FE1 are used to determine the axial position of the compressor housing CASCO. So that there is no overloading of the sliding bearing units SU1, SU2, they can be relieved by means of a crane, which is preferably already present on the construction site, by means of attachment eyelets LH provided on the compressor housing CASCO. Relief of this kind makes virtually no demands on the precision of the crane used therefor.
  • the sliding bearing units SU1, SU2 on both sides are axially secured by means of the fixing elements FE1, FE2 and additionally fastened to the supports SUP1, SUP2 by means of further fastening elements CS.
  • the guide guide GG in the axial direction of the center guide MGCO fixing yoke YK which makes the play of the center guide MGCO in the guide guide GG in the axial direction to the requirements of relative thermal expansion by means of a matching plate AP.
  • the compressor housing CASCO is spatially fixed in three points, so that an unwanted tilting is excluded. This allows the additional supports SST1, SST2 shorten in such a way that this Verkippomme is disabled. Then, inter alia, on the side of the transmission GE the Casing Casco closed, so that the opening OP, through which the impeller IMPCO has been inserted axially, is closed ready for operation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Description

Die Erfindung betrifft einen Getriebeverdichter umfassend ein Getriebe und mindestens einen als Turboverdichter ausgebildeten Verdichter, wobei das Getriebe zum Antrieb des Verdichters eine Verdichterantriebswelle, die drehmomentübertragend mit einem um eine Rotationsachse X drehbar ausgebildeten Impeller des Verdichters verbunden ist, wobei der Verdichter ein Gehäuse aufweist, wobei das Gehäuse Anformungen aufweist zum Abstützen an Auflagen des Getriebeverdichters. Weiterhin beschäftigt sich die Erfindung mit einem Verfahren zur Montage eines Getriebeverdichters, insbesondere eines Getriebeverdichters der eingangs definierten Art, wobei schrittweise zunächst ein Getriebe mit einem um eine Rotationsachse drehbaren Impeller des Getriebeverdichters drehmomentübertragend montiert bereitgestellt werden und anschließend ein Verdichtergehäuse in axialer Richtung derart an das Getriebe herangeführt wird, dass in axialer Endposition dieser Bewegung der Impeller von dem Verdichtergehäuse umgeben ist.The invention relates to a transmission compressor comprising a transmission and at least one compressor designed as a turbo compressor, wherein the transmission for driving the compressor, a compressor drive shaft, the torque transmitting connected to a rotatable about an axis of rotation X formed impeller of the compressor, wherein the compressor has a housing the housing has projections for supporting on supports of the gear compressor. Furthermore, the invention is concerned with a method for assembling a gear compressor, in particular a gear compressor of the type defined, wherein stepwise a gear with a rotatable about a rotation axis impeller of the gear compressor torque-transmitting are provided and then a compressor housing in the axial direction of the gearbox is introduced that in the axial end position of this movement, the impeller is surrounded by the compressor housing.

Getriebeverdichter der eingangs definierten Art sind bereits aus der deutschen Patentschrift DE 44 23 784 C2 bekannt. Die strömungsführenden Gehäuse von derartigen Getriebeverdichtern, die auch als Prozessgasradialturbinen bezeichnet werden, werden im Regelfall mit senkrechter Stutzenstellung ausgeführt. Das bedeutet, dass der Einlaufstutzen sich in vertikaler Richtung nach oben erstreckt und das zu verdichtende Fluid von oben nach unten in das strömungsführende Gehäuse bzw. an den Impeller heranströmt. Größere Abmaße des Verdichtergehäuses stellen bei der Montage eine Herausforderung dar, da eine gängige Montagemethode vorsieht, dass das Verdichtergehäuse über das Laufrad - also das Laufrad fortschreitend umgebend - an das Getriebe seitlich bzw. in axialer Richtung der Impellerrotationsachse, herangeführt wird. Hierbei bleibt zwischen dem Verdichtergehäuse und dem an dem Getriebe bereits angebrachten Impeller in der Regel ein Radialspiel von lediglich wenigen Millimetern, z.B. 5mm, so dass eine entsprechen genaue Führung dieser axialen Montagebewegung unter Baustellenbedingungen eine aufwendige Herausforderung bedeutet.Gear compressor of the type defined are already known from the German patent DE 44 23 784 C2 known. The flow-guiding housing of such transmission compressors, which are also referred to as process gas radial turbines, are usually carried out with vertical nozzle position. This means that the inlet pipe extends vertically upwards and the fluid to be compressed flows from top to bottom in the flow-guiding housing or on the impeller. Larger dimensions of the compressor housing pose a challenge during assembly, since a common mounting method provides that the compressor housing via the impeller - ie the impeller progressively surrounding - to the transmission laterally or in the axial direction of the impeller rotation axis, is introduced. This remains between the compressor housing and on the Gearbox already mounted impeller usually a radial clearance of only a few millimeters, eg 5mm, so that a correspondingly accurate management of this axial assembly movement under construction site conditions means a complex challenge.

Die Erfindung hat es sich zur Aufgabe gemacht, den eingangs definierten Getriebeverdichter bzw. das eingangs definierte Montageverfahren derart weiterzubilden, dass die Montage des Verdichtergehäuses eines Getriebeverdichters auch unter Baustellenbedingungen sicherer erfolgen kann.The invention has set itself the task of developing the initially defined gear compressor or the initially defined assembly method such that the assembly of the compressor housing of a gear compressor can be done safely even under site conditions.

Aus der JP1320397A1 ist bereits eine Anordnung aus einem Antrieb und einem Verdichter bekannt, bei der ein Verdichtergehäuse auf einer gemeinsamen Grundplatte mit dem Antrieb befestigt ist. Aus der DE DE4423784C2 ist ein Getriebeverdichter bekannt, bei der ein Antrieb an dem Getriebegehäuse axial verschieblich angebracht ist.From the JP1320397A1 An arrangement of a drive and a compressor is already known, in which a compressor housing is mounted on a common base plate with the drive. From the DE DE4423784C2 a transmission compressor is known in which a drive is mounted axially displaceably on the transmission housing.

Aus der EP-A-2381129 ist bereits ein Getriebeverdichter bekannt, der ein Getriebe (GE) und mindestens einen als Turboverdichter ausgebildeten Verdichter umfasst, wobei das Getriebe zum Antrieb des Verdichters eine Verdichterantriebswelle aufweist, welche Verdichterantriebswelle drehmomentübertragend mit einem um eine Rotationsachse drehbar ausgebildeten Impeller des Verdichters verbunden ist, wobei der Verdichter ein Verdichtergehäuse aufweist.From the EP-A-2381129 a transmission compressor is already known which comprises a transmission (GE) and at least one compressor designed as a turbocompressor, wherein the transmission for driving the compressor comprises a compressor drive shaft, which compressor drive shaft is connected to transmit torque to a rotatable about an axis of rotation impeller of the compressor, wherein the Compressor has a compressor housing.

Zur Lösung der erfindungsgemäßen Aufgabe wird ein Getriebeverdichter der eingangs genannten Art vorgeschlagen, der mittels der Merkmale des kennzeichnenden Teils des Anspruchs 1 fortgebildet ist. Weiterhin wird ein Montageverfahren gemäß dem unabhängigen Verfahrensanspruch vorgeschlagen. Die jeweils rückbezogenen Unteransprüche beinhalten vorteilhafte Weiterbildungen der Erfindung.To achieve the object of the invention, a gear compressor of the type mentioned is proposed, which is formed by means of the features of the characterizing part of claim 1. Furthermore, an assembly method according to the independent method claim is proposed. The respective dependent claims contain advantageous developments of the invention.

In der Begriffswelt der Erfindung bedeutet die Richtungsangabe "axial" - wenn nicht anders angegeben - die axiale Richtung der Rotationsachse des eines Impellers des Verdichters der in dem Verdichtergehäuse angeordnet istIn the conceptual world of the invention, the direction indication "axially" - unless otherwise stated - means the axial direction the axis of rotation of an impeller of the compressor which is arranged in the compressor housing

Die erfindungsgemäße Ausbildung von Paaren von Anformungen an dem Verdichtergehäuse und Auflagern des Getriebeverdichters unter Zwischenanordnung von Lagerelementen, derart, dass die beschriebene axiale Bewegung im Rahmen der Montage derart geführt ist, dass ein Kollisionskontakt zwischen dem Verdichterlaufrad und dem Verdichtergehäuse nicht stattfinden kann, ermöglicht eine Montage auf der Baustelle mit dort einfach verfügbaren Mitteln, beispielsweise mittels eines weniger präzisen Autokrans. Diese Eigenschaften sind nicht nur bei Erstmontage durch den Lieferanten des Getriebeverdichters von Vorteil, sondern besonders vorteilhaft für Wartungsvorgänge, die ebenfalls eine Demontage des Verdichters erfordern können. Darüber hinaus ermöglichen die mit den Lagerelementen ausgestatteten Auflager bzw. Ausformungen ein Lösen des Verdichtergehäuses aus der Betriebsposition und ein Verschieben des Verdichtergehäuses, so dass bereits verschiedene Bauteile des Getriebeverdichters ohne vollständige Entfernung des Verdichtergehäuses hinreichend zugänglich für Wartungsarbeiten werden. Auf diese Weise ist es denkbar, dass eine Wartung oder Inspektion des Getriebeverdichters ohne entsprechende Hebevorrichtung stattfinden kann. Der erfindungsgemäßen Gleitlagung erlaubt eine Bewegung des Verdichtergehäuses aus einer Betriebsposition heraus in eine Serviceposition, in der das Verdichterlaufrad bzw. der Verdichterimpeller von außen für Wartungszwecke zugänglich ist und ein Verfahren des Verdichtergehäuses aus dieser Serviceposition heraus in die Betriebsposition.The inventive design of pairs of projections on the compressor housing and bearing the gear compressor with interposition of bearing elements, such that the described axial movement is performed in the context of assembly such that a collision contact between the compressor rotor and the compressor housing can not take place, allows for mounting on the construction site with readily available resources, for example by means of a less precise truck crane. These features are advantageous not only for initial assembly by the gear compressor supplier, but particularly beneficial for maintenance operations that may also require disassembly of the compressor. In addition, equipped with the bearing elements support or formations allow a release of the compressor housing from the operating position and a displacement of the compressor housing, so that already various components of the gear compressor without complete removal of the compressor housing are sufficiently accessible for maintenance. In this way, it is conceivable that a maintenance or inspection of the gear compressor can take place without appropriate lifting device. The sliding bearing according to the invention allows a movement of the compressor housing from an operating position out into a service position in which the compressor impeller or compressor impeller is accessible from the outside for maintenance and a method of the compressor housing from this service position out into the operating position.

Eine bevorzugte Weiterbildung der Erfindung sieht vor, dass der Getriebeverdichter zwei Lagerelemente umfasst, nämlich ein erstes Lagerelement zwischen einer erste Anformung an dem Verdichtergehäuse und einer erste Auflage des Getriebeverdichters sowie ein zweites Lagerelement zwischen einer zweiten Anformung und einer zweiten Auflage des Getriebeverdichters. Diese beiden Lagerelemente ermöglichen jeweils eine Bewegung des Verdichtergehäuses in Richtung der Rotationsachse des Impellers und sind bevorzugt radial beabstandet angeordnet, wobei die radiale Beabstandung derart orientiert ist, dass es einen Horizontalabstand zwischen der Rotationsachse und den Gleitlagern gibt, wobei auf jeder horizontalen Seite der Rotationsachse ein Lagerelement vorgesehen ist. Eine derartige Anordnung verhindert zuverlässig ein Kippen des Verdichtergehäuses um eine Achse parallel zur Rotationsachse und dient naturgemäß der vertikalen Abstützung der Gewichtskraft des Verdichtergehäuses.A preferred development of the invention provides that the gear compressor comprises two bearing elements, namely a first bearing element between a first Anformung on the compressor housing and a first edition of the gear compressor and a second bearing element between a second Anformung and a second edition of the gear compressor. These two bearing elements each allow a movement the compressor housing in the direction of the axis of rotation of the impeller and are preferably arranged radially spaced, wherein the radial spacing is oriented such that there is a horizontal distance between the axis of rotation and the plain bearings, wherein on each horizontal side of the axis of rotation a bearing element is provided. Such an arrangement reliably prevents tilting of the compressor housing about an axis parallel to the axis of rotation and naturally serves the vertical support of the weight of the compressor housing.

Eine vorteilhafte Weiterbildung der Erfindung sieht vor, dass die Lagerelemente jeweils mindestens ein Fixierelement aufweisen, mittels dessen die Axialposition feststellbar ist. Auf diese Weise können die Lagerelemente nicht nur zu Montagezwecken benutzt werden, sondern auch als reguläres Auflager zum Abfangen der Gewichtskraft und etwaiger Betriebsdrehmomente an dem Verdichtergehäuse im Betrieb. Zweckmäßig ist das jeweilige Lagerelement mit einer Verschiebevorrichtung versehen. Die Verschiebevorrichtung kann zweckmäßig als Gewindestange mit entsprechenden Elementen in Eingriff stehen, die bevorzugt Gewindebohrungen aufweisen, so dass beispielsweise ein Drehen der Gewindestange einen axialen Versatz des Verdichtergehäuses an dem jeweiligen Lagerelement bewirkt. Gleichzeitig ist eine derartige Verschiebevorrichtung mit Gewindevortrieb in axialer Bewegungsvorrichtung einfach fixierbar, beispielsweise mittels Kontermuttern oder einer sonstigen Verdrehsicherung an der Gewindestange.
Alternativ kann auch eine Hydraulik für den Antrieb der axialen Verschiebung vorgesehen sein.An advantageous development of the invention provides that the bearing elements each have at least one fixing element, by means of which the axial position can be determined. In this way, the bearing elements can be used not only for assembly purposes, but also as a regular support for capturing the weight and any operating torques on the compressor housing in operation. Suitably, the respective bearing element is provided with a displacement device. The displacement device can expediently be in the form of a threaded rod with corresponding elements, which preferably have threaded bores, so that, for example, a rotation of the threaded rod causes an axial offset of the compressor housing on the respective bearing element. At the same time such a displacement device with threaded drive in the axial movement device is easily fixed, for example by means of lock nuts or other rotation on the threaded rod.
Alternatively, a hydraulic system for driving the axial displacement may be provided.

Insbesondere bei verhältnismäßig schweren Verdichtergehäusen ist es sinnvoll, wenn die Auflager Bestandteil jeweils einer Stütze sind, die an einer Grundplatte des Getriebeverdichters sich abstützend befestigt sind, an welcher Grundplatte sich auch das Getriebe sich abstützt bzw. befestigt ist.In particular, in relatively heavy compressor housings, it makes sense if the supports are each part of a support, which are attached to a base plate of the gear compressor supporting, on which base plate, the transmission is supported or attached.

Zweckmäßig ist das Auflager nicht direkt an einem Gehäuse des Getriebes - z.B. an einer Seitenwand - befestigt, so dass es aufgrund der Gewichtskraft des Verdichtergehäuses nicht zu einer Verformung des Getriebegehäuses und damit zu einem etwaigen Versatz der Verdichterwellen kommen kann.Suitably, the support is not directly attached to a housing of the transmission - e.g. attached to a side wall - fixed so that it can not come to a deformation of the gear housing and thus to a possible offset of the compressor shaft due to the weight of the compressor housing.

Eine andere vorteilhafte Weiterbildung der Erfindung sieht vor, dass an dem Verdichtergehäuse oder der Grundplatte vertikal unter der Rotationsachse eine Mittenführung vorgesehen ist, welche mit einer an dem Getriebe oder der Grundplatte befestigten Führungsführung derart ausgebildet ist, dass eine horizontale Bewegung in radialer Richtung des Verdichtergehäuses blockiert ist. Eine zusätzliche Funktion dieser Mittenführung besteht vorteilhafte darin, dass die Führungsführung derart ausgebildet ist, dass eine axiale Beweglichkeit der Mittenführung in der Führungsführung auf relative Wärmedehnungen der Komponenten des Getriebeverdichters beschränkt ist. Auf diese Weise ist nicht nur eine Axialbewegung des Verdichtergehäuses in größerem Ausmaß als die relative Wärmedehnung blockiert, sondern auch verhindert, dass das Verdichtergehäuse relativ zu den übrigen Bestandteilen des Getriebeverdichters um eine Achse senkrecht zur Rotationsachse drehbar bzw. kippbar ist. Das Verkippen ist deswegen verhindert, weil in Zusammenwirkung mit der axialen Fixiermöglichkeit der Gleitlager mit der Blockade einer Axialbewegung in der Mittenführung eine räumliche Dreipunkte-Fixierung des Verdichtergehäuses gegeben ist.Another advantageous embodiment of the invention provides that on the compressor housing or the base plate vertically below the axis of rotation a center guide is provided, which is formed with a fixed to the transmission or the base guide guide such that blocks a horizontal movement in the radial direction of the compressor housing is. An additional function of this center guide is advantageous in that the guide guide is designed such that an axial mobility of the center guide in the guide guide is limited to relative thermal expansion of the components of the gear compressor. In this way, not only axial movement of the compressor housing is blocked to a greater extent than the relative thermal expansion, but also prevents the compressor housing is rotatable or tiltable relative to the other components of the gear compressor about an axis perpendicular to the axis of rotation. The tilting is therefore prevented because in conjunction with the axial fixing possibility of the sliding bearing with the blockage of an axial movement in the center guide a three-point spatial fixation of the compressor housing is given.

Das erfindungsgemäße Verfahren zur Montage hat den Vorteil, dass zunächst das Verdichtergehäuse in sicherem axialen Abstand zu dem bereits an dem Getriebe mittels einer Antriebswelle angebrachten Impeller mit seinen Anformungen auf die Auflager aufgesetzt werden kann. Mittels der durch das paarweise Aufsetzen der Anformungen des Getriebeverdichtergehäuses auf die Auflager unter Zwischenanordnung der erfindungsgemäßen Lagerelemente entstehenden beiden lagernden Führungen ist das Verdichtergehäuse einerseits zunächst sicher vertikal mit seiner Gewichtskraft abgestützt und andererseits in axiale Richtung bewegbar, so dass eine Axialbewegung mit fortschreitender zunehmender Umgebung des Impellers durch das Verdichtergehäuse ohne Verwendung eines besonders präzise arbeitenden Kranes möglich wird.The inventive method for mounting has the advantage that initially the compressor housing can be placed at a safe axial distance to the already attached to the gearbox by means of a drive shaft impeller with its projections on the supports. By means of the paired mounting of the projections of the gear compressor housing on the supports with interposition of the bearing elements according to the invention resulting two bearing guides the compressor housing on the one hand is first securely supported vertically with its weight and on the other hand movable in the axial direction, so that an axial movement with progressive increasing environment of the impeller through the compressor housing without the use of a particularly precise working crane is possible.

Eine vorteilhafte Weiterbildung der Erfindung sieht vor, dass nach der Annäherung des Verdichtergehäuses an das Getriebe unter Lagerung mittels der Gleitlager und Erreichen der axialen Endposition die Lagerelemente mittels jeweils zugehöriger Fixiervorrichtungen in ihrer axialen Position festgestellt werden. An den Lagerelementen bzw. Gleitlagern können Vorkehrungen bzw. Formelemente ausgebildet sein, die ein Verkippen des Verdichtergehäuses senkrecht zur Rotationsachse abstützen. Vorteilhaft ist nach der Verlagerung des Verdichtergehäuses in die axiale Endposition vorgesehen, diese eine Kippbewegung des Verdichtergehäuses während der Axialbewegung verhindernden Formelemente derart zu verändern, dass die Abstützung gegen das Kippen deaktiviert ist. Beispielsweise können diese Formelemente Schrauben oder Gewindestangen aufweisen, deren Verdrehen dazu führt, dass nicht mehr gegen eine entsprechende Kippbewegung an dem Gleitlager abgestützt ist. Diese Deaktivierung der Kippverhinderung erfolgt vorteilhaft nach einem Verfahrensschritt der Fixierung einer Mittenführung vertikal unterhalb der Rotationsachse an dem Verdichtergehäuse in einer Führungsführung in axialer Richtung, so dass die Kippverhinderung von der Mittenführung im Betrieb übernommen ist.An advantageous development of the invention provides that after the approach of the compressor housing to the transmission under storage by means of the sliding bearing and reaching the axial end position, the bearing elements are determined by means of respectively associated fixing devices in its axial position. On the bearing elements or plain bearings precautions or mold elements may be formed which support a tilting of the compressor housing perpendicular to the axis of rotation. It is advantageously provided after the displacement of the compressor housing in the axial end position, this to change a tilting movement of the compressor housing during the axial movement preventing mold elements such that the support is deactivated against tilting. For example, these form elements may have screws or threaded rods whose rotation leads to the fact that is no longer supported against a corresponding tilting movement of the sliding bearing. This deactivation of the tilt prevention advantageously takes place after a method step of fixing a center guide vertically below the axis of rotation on the compressor housing in a guide guide in the axial direction, so that the tilt prevention is taken over by the center guide during operation.

Im Folgenden ist die Erfindung anhand eines speziellen Ausführungsbeispiels hinsichtlich des Getriebeverdichters und anhand desselben Ausführungsbeispiels auch hinsichtlich des erfindungsgemäßen Montageverfahrens unter Bezugnahme auf Zeichnungen näher beschrieben. Es zeigen:

Figur 1
eine dreidimensionale Darstellung von für die Erfindung relevanter Bauelemente des Getriebeverdichters unter Illustration des Montageverfahrens,
Figur 2
eine schematische perspektivische Darstellung eines Details der Figur 1 aus anderer Sichtrichtung gemäß Perspektive II der Figur 1 und
Figur 3
eine perspektivische schematische Darstellung von Details der Gleitlagerung und Mittenführung gemäß Perspektive III der Figur 1.
In the following the invention with reference to a specific embodiment with respect to the gear compressor and the same embodiment with respect to the assembly method according to the invention with reference to drawings described in more detail. Show it:
FIG. 1
a three-dimensional representation of relevant to the invention components of the gear compressor illustrating the assembly process,
FIG. 2
a schematic perspective view of a detail of FIG. 1 from another point of view according to perspective II of the FIG. 1 and
FIG. 3
a perspective schematic representation of details of the plain bearing and center guide according to perspective III of FIG. 1 ,

Figur 1 zeigt eine perspektivische schematische Wiedergabe von Bauteilen des erfindungsgemäßen Getriebeverdichters GCO, die für die Erfindung bedeutsam sind. Bauteile von untergeordneter Bedeutung oder ohne Bedeutung für die Erfindung sind entweder nur symbolisch angedeutet oder nicht dargestellt. Im Zusammenhang mit der Erfindung sind geometrische Angaben, wie axial, radial, Umfangsrichtung, tangential stets auf die eine Rotationsachse X eines Impellers IMPCO eines Verdichters CO1 bezogen - wenn nicht anders angegeben. FIG. 1 shows a perspective schematic representation of components of the transmission compressor according to the invention GCO, which are significant to the invention. Components of minor importance or significance for the invention are either only symbolically indicated or not shown. In the context of the invention, geometrical details, such as axial, radial, circumferential direction, tangential always refer to the one axis of rotation X of an impeller IMPCO of a compressor CO1 - unless otherwise stated.

Der in Figur 1 dargestellte Getriebeverdichter GCO umfasst ein Getriebe GE (welches nur mit einem Gehäuseunterteil wiedergegeben ist) und einen hier beispielhaft wiedergegebenen Verdichter CO1 (der hier nur als Verdichtergehäuse CASCO und symbolisch angedeutet als Impeller IMPCO dargestellt ist).The in FIG. 1 shown gear compressor GCO includes a transmission GE (which is shown only with a lower housing part) and here reproduced by way of example compressor CO1 (which is shown here only as a compressor housing CASCO and symbolically indicated as an impeller IMPCO).

Neben den beispielhaft dargestellten Verdichter CO1 werden in der Regel von dem Getriebe GE weitere Verdichter angetrieben. Bei der hier dargestellten Ausführung des Getriebeverdichters GCO ist es vorgesehen, dass neben dem dargestellten Verdichter CO1 ein weiterer Verdichter neben dem Getriebe GE angeordnet ist und auf der von dem Betrachter der Figur 1 abgewendeten Seite des Getriebes GE ebenfalls zwei Verdichter vorgesehen sind, wobei alle Verdichter von dem gemeinsamen Getriebe GE angetrieben werden. Wie bereits eingangs erläutert, ist es ein wesentliches Merkmal eines Getriebeverdichters GCO, dass es ein zentrales Getriebe GE gibt, welches verschiedene Abtriebswellen aufweist, die dem Antrieb verschiedener Verdichter dienen.In addition to the compressors CO1 shown as an example are driven by the transmission GE more compressors. In the embodiment of the gear compressor GCO shown here, it is provided that in addition to the illustrated compressor CO1 another compressor is arranged next to the gear GE and on the of the viewer of the FIG. 1 averted side of the transmission GE also two compressors are provided, all compressors are driven by the common gear GE. As already explained above, it is an essential feature of a gear compressor GCO that there is a central gear GE, which has different output shafts that serve the drive of different compressors.

Der Getriebeverdichter GCO weist eine Grundplatte BP auf, an der das Getriebe GE und der Verdichter CO1 befestigt und vertikal abgestützt sind. Ein bevorzugtes Anwendungsfeld der Erfindung sind Verdichter CO1, die ein derart schweres Verdichtergehäuse CASCO aufweisen, das es entweder besondere Verstärkungsmaßnahmen an dem Getriebe GE erfordern würden, würde man das Gehäuse CASCO an dem Getriebe GE direkt befestigten oder es zu Verformungen an dem Gehäuse des Getriebes GE führen, die sich ungünstig auf die korrekte Lage der Abtriebswellen bzw. der Wellen der Verdichter CO1 auswirken würden und damit auch in dem Getriebe GE an Zahnrädern zu Eigentümlichkeiten an dem jeweiligen Tragbild der Zahnräder führen würden. Um diese Beeinträchtigungen zu vermeiden ist es in Figur 1 vorgesehen, dass das Verdichtergehäuse CASCO sich mittels Anformungen SUPCAS1, SUPCAS2 vertikal an Auflagern SUP1, SUP2 beidseitig der Rotationsachse X abstützt, welcher Auflager SUP1, SUP2 sich direkt an der Bodenplatte BP abstützen und dort befestigt sind.The transmission compressor GCO has a base plate BP to which the transmission GE and the compressor CO1 are fixed and supported vertically. A preferred field of application of the invention are compressors CO1, which have such a heavy compressor housing CASCO, that it would require either special reinforcing measures on the gear GE, one would attach the housing CASCO directly to the gear GE or it to deformations on the housing of the transmission GE lead, which would adversely affect the correct position of the output shafts or the waves of the compressor CO1 and thus would lead to peculiarities on the respective contact pattern of the gears in the transmission GE to gears. To avoid these impairments it is in FIG. 1 provided that the compressor housing CASCO is supported by formations SUPCAS1, SUPCAS2 vertically on supports SUP1, SUP2 on both sides of the axis of rotation X, which supports SUP1, SUP2 are supported directly on the base plate BP and secured there.

Im Einzelnen sind in der Figur 1 die Anformungen SUPCAS1, SUPCAS2 in der dargestellten Perspektive rechts der Rotationsachse X als erste Anformungen SUPCAS1 und links der Rotationsachse X als zweite Anformungen SUPCAS2 vorgesehen. Während des Montageverfahrens sind jeweils zwei erste Anformungen SUPCAS1 und zwei zweite Anformungen SUPCAS2, die jeweils axial hintereinander angeordnet sind, das Verdichtergehäuse CASCO vertikal abstützend im Eingriff. Diese axial doppelte Abstützung dient der Verhinderung eines Kippens des Verdichtergehäuses CASCO um eine Achse senkrecht zur Rotationsachse X. Um eine statische Überbestimmung in der Endposition aus dem Zusammenwirken von Auflagen SUP1, SUP2 und Anformungen SUPCAS1, SUPCAS2 zu verhindern, wird von den beiden axial hintereinander angeordneten abstützenden Anformungen SUPCAS1, SUPCAS2 entlastet durch Einfahren eines Unterstützungsstempels SST1, SST2.
Die Absicherung gegen ein Verkippen des Verdichtergehäuses CASCO übernimmt stattdessen eine Führungsführung GG einer vertikal unter der Rotationsachse X befindlichen Mittenführung MGCO des Verdichtergehäuses CASCO, welche das Verdichtergehäuse CASCO relativ zu der Grundplatte BP bzw. dem Getriebe GE nicht nur in radialer Richtung zentriert, sondern auch eine Bewegungsfreiheit in axialer Richtung bis auf eine Wärmerelativdehnung (die zuvor rechnerisch bestimmt worden ist) einschränkt. In Zusammenwirken mit den beidseitig der Rotationsachse X befindlichen Anformungen SUPCAS1, SUPCAS2 und Auflagen SUP1, SUP2 verhindert die damit verwirklichte Dreipunktlagerung wirksam ein Kippen des Verdichtergehäuses CASCO um eine Achse senkrecht zur Rotationsachse X.In detail are in the FIG. 1 the projections SUPCAS1, SUPCAS2 are provided in the illustrated perspective to the right of the axis of rotation X as first projections SUPCAS1 and to the left of the axis of rotation X as second projections SUPCAS2. During the assembly process, in each case two first projections SUPCAS1 and two second projections SUPCAS2, which are each arranged axially one behind the other, engage the compressor housing CASCO in vertical support. This axial double support serves to prevent a tilting of the compressor housing CASCO about an axis perpendicular to the axis of rotation X. To prevent a static overdetermination in the end position from the interaction of supports SUP1, SUP2 and moldings SUPCAS1, SUPCAS2, of the two arranged axially one behind the other supporting formations SUPCAS1, SUPCAS2 relieved by retracting a support stamp SST1, SST2.
The protection against tilting of the compressor housing CASCO instead assumes a guide guide GG of a vertically located below the axis of rotation X center guide MGCO of the compressor housing CASCO, which concentrates the compressor housing CASCO relative to the base plate BP and the gear GE not only in the radial direction, but also a freedom of movement in the axial direction to a thermal expansion (which has been previously determined mathematically) limits. In cooperation with the projections on both sides of the axis of rotation X, SUPCAS1, SUPCAS2 and supports SUP1, SUP2, the three-point bearing realized thereby effectively prevents tilting of the compressor housing CASCO about an axis perpendicular to the axis of rotation X.

Im Einzelnen sieht das Montageverfahren nach der Erfindung vor, dass in einem ersten Schritt ST1 das zum Beispiel etwa 12 Tonnen schwere Verdichtergehäuse CASCO mittels eines Krans in senkrechter Ausrichtung mit den an dem Verdichtergehäuse CASCO vorgesehenen Anformungen SUPCAS1, SUPCAS2 auf den Auflagern SUP1, SUP2 aufgesetzt wird. Im Einzelnen wird zunächst eine jeweils als Gleitlagereinheit SU1, SU2 ausgebildete Lagereinheit BE an den Auflagern SUP1, SUP2 befestigt. Die Gleitlagereinheit SU1 umfasst eine Gleitfläche SLS, die auf einer Kontaktfläche CSF des jeweiligen Auflagers SUP1, SUP2 zu gleiten vermag. Die Gleitlagereinheit SU1, SU2 umfasst außerdem eine vertikale Anpassplatte VP, mittels derer die Höhenausrichtung des Verdichtergehäuses CASCO bestimmt wird. Schließlich dient ein U-förmiger Halter HO dazu, die Anformung SUPCAS1, SUPCAS2 unter vertikaler Zwischenanordnung der vertikalen Anpassplatte VP an der Gleitlagereinheit SU1, SU2 zu befestigen. Nach erfolgter vertikaler Absenkung des Verdichtergehäuses CASCO auf die Gleitlagereinheiten SU1, SU2 werden die Gleitlagereinheiten SU1, SU2 an den entsprechenden Auflagern SUP1, SUP2 gelöst und es erfolgt eine axiale Bewegung des Verdichtergehäuses CASCO auf das Getriebe GE im Rahmen des zweiten Schrittes ST2. Diese axiale Bewegung erfolgt mittels des als Gewindestange ausgebildeten Fixierelementes FE1, FE2 auf beiden Seiten der Rotationsachse X, wobei auf der Gewindestange des Fixierelementes FE1, FE2 Muttern verdreht werden, die in der jeweiligen axialen Anlage für einen Vortriebe des Verdichtergehäuses CASCO sorgen. In der axialen Endlage, in der der Impeller IMPCO radial von dem Verdichtergehäuse CASCO vollständig umgeben ist, werden die Muttern an den Fixierelementen FE1 dazu genutzt, die axiale Lage des Verdichtergehäuses CASCO festzulegen. Damit es nicht zu einer Überlastung der Gleitlagereinheiten SU1, SU2 kommt, können diese mittels eines - bevorzugt bereits auf der Baustelle vorhandenen - Kranes mittels an dem Verdichtergehäuse CASCO vorgesehenen Anhängeösen LH entlastet werden. Eine derartige Entlastung stellt so gut wie keine Anforderungen an die Präzision des dafür genutzten Kranes.In detail, the assembly method according to the invention provides that, in a first step ST1, the compressor housing CASCO, for example about 12 tons, is placed on the supports SUP1, SUP2 by means of a crane in vertical alignment with the projections SUPCAS1, SUPCAS2 provided on the compressor housing CASCO , In detail, a bearing unit BE designed in each case as a plain bearing unit SU1, SU2 is first fastened to the supports SUP1, SUP2. The sliding bearing unit SU1 comprises a sliding surface SLS, which is able to slide on a contact surface CSF of the respective support SUP1, SUP2. The sliding bearing unit SU1, SU2 also includes a vertical adjustment plate VP, by means of which the height orientation of the compressor housing CASCO is determined. Finally, a U-shaped holder HO serves to attach the molding SUPCAS1, SUPCAS2 to the sliding bearing unit SU1, SU2 with vertical interposition of the vertical adjustment plate VP. After the vertical lowering of the compressor housing CASCO on the plain bearing units SU1, SU2, the sliding bearing units SU1, SU2 are released to the corresponding supports SUP1, SUP2 and there is an axial movement of the compressor housing CASCO on the gear GE in the second step ST2. This axial movement takes place by means of the threaded rod designed as a fixing FE1, FE2 on both sides of the axis of rotation X, being rotated on the threaded rod of the fixing FE1, FE2 nuts in the respective axial system for a Drives of the compressor housing CASCO provide. In the axial end position, in which the impeller IMPCO is completely surrounded radially by the compressor housing CASCO, the nuts on the fixing elements FE1 are used to determine the axial position of the compressor housing CASCO. So that there is no overloading of the sliding bearing units SU1, SU2, they can be relieved by means of a crane, which is preferably already present on the construction site, by means of attachment eyelets LH provided on the compressor housing CASCO. Relief of this kind makes virtually no demands on the precision of the crane used therefor.

In der axialen Endposition des Verdichtergehäuses CASCO werden die beidseitigen Gleitlagereinheiten SU1, SU2 axial mittels der Fixierelemente FE1, FE2 gesichert und zusätzlich mittels weiterer Befestigungselemente CS an den Auflagern SUP1, SUP2 befestigt.In the axial end position of the compressor housing CASCO, the sliding bearing units SU1, SU2 on both sides are axially secured by means of the fixing elements FE1, FE2 and additionally fastened to the supports SUP1, SUP2 by means of further fastening elements CS.

In der axialen Endlage befindet sich ein vertikal unter der Rotationsachse X am unteren Ende des Verdichtergehäuses CASCO befindlicher Mittenführungsnocken in einer ebenfalls an diesem Ort angeordneten Führungsführung GG des Getriebeverdichters GCO, wobei die Führungsführung GG Verstellelemente AE aufweist, die eine exakte Ausrichtung der Mittenführung MGCO in horizontaler Richtung senkrecht zur Rotationsachse X ermöglichen. Im Einzelnen sind diese Verstellelemente AE mit Gewinden stufenlos auf diese Horizontalausrichtung einstellbar.In the axial end position is located a vertically below the axis of rotation X at the lower end of the compressor housing CASCO befindten center guide cam in a likewise arranged at this location guide GG of the gear compressor GCO, wherein the guide guide GG adjusting AE has an exact alignment of the center guide MGCO in horizontal Allow direction perpendicular to the axis of rotation X. In detail, these adjusting elements AE with threads are infinitely adjustable to this horizontal orientation.

Zusätzlich weist die Führungsführung GG ein in axialer Richtung die Mittenführung MGCO fixierendes Joch YK auf, das mittels einer Anpassplatte AP das Spiel der Mittenführung MGCO in der Führungsführung GG in axialer Richtung auf die Erfordernisse der relativen Wärmedehnung beschränkbar macht. Mittels der unteren Mittenführung MGCO und der fixierten Gleitlagereinheiten SU1, SU2 ist das Verdichtergehäuse CASCO in drei Punkten räumlich fixiert, so dass ein ungewolltes Verkippen ausgeschlossen ist. Dies ermöglicht es, die Zusatzstützen SST1, SST2 derart zu verkürzen, dass diese Verkippsicherung deaktiviert ist. Anschließend wird unter anderem auf der Seite des Getriebes GE das
Verdichtergehäuse CASCO verschlossen, so dass die Öffnung OP, durch die der Impeller IMPCO axial eingeführt worden ist, betriebsfertig verschlossen ist.In addition, the guide guide GG in the axial direction of the center guide MGCO fixing yoke YK, which makes the play of the center guide MGCO in the guide guide GG in the axial direction to the requirements of relative thermal expansion by means of a matching plate AP. By means of the lower center guide MGCO and the fixed plain bearing units SU1, SU2, the compressor housing CASCO is spatially fixed in three points, so that an unwanted tilting is excluded. This allows the additional supports SST1, SST2 shorten in such a way that this Verkippsicherung is disabled. Then, inter alia, on the side of the transmission GE the
Casing Casco closed, so that the opening OP, through which the impeller IMPCO has been inserted axially, is closed ready for operation.

Claims (12)

  1. Geared compressor (GCO) comprising a gearing (GE) and at least one compressor (CO1) designed as a turbo compressor,
    wherein the gearing (GE) has, for driving the compressor (CO1), a compressor drive shaft (COSH), which compressor drive shaft (COSH) is connected in a torque-transmitting manner to an impeller (IMPCO) of the compressor (CO1) that is designed to be able to rotate about an axis of rotation (X),
    wherein the compressor (CO1) has a compressor casing (CASCO),
    wherein the compressor casing (CASCO) has protrusions (SUPCAS1, SUPCAS2) to be supported on supports (SUP1, SUP2) of the geared compressor (GCO),
    characterized in that
    bearing elements (BE) are provided in a relatively displaceable manner between the protrusions (SUPCAS1, SUPCAS2) and the supports (SUP1, SUP2), which bearing elements are designed such that the compressor casing (CASCO) is mounted so as to be able to be displaced in the axial direction of the axis of rotation (X).
  2. Geared compressor (GCO) according to Claim 1,
    wherein the protrusions (SUPCAS1, SUPCAS2) and the supports (SUP1, SUP2) in each case form, in pairs with one another, at least one bearing element.
  3. Geared compressor (GCO) according to Claim 1,
    wherein at least one bearing module, which comprises the bearing element for relative displacement, is in each case provided between the protrusions (SUPCAS1, SUPCAS2) and the supports (SUP1, SUP2) that are assigned to one another in pairs.
  4. Geared compressor (GCO) according to Claim 1, 2 or 3,
    wherein the bearing elements for relative displacement are in each case designed as sliding bearings (SB1, SB2).
  5. Geared compressor (GCO) according to Claim 4,
    wherein two bearing elements (BE), each having at least one sliding bearing (SB1, SB2), are provided, namely a first sliding bearing (SB1), between a first protrusion (SUPCAS1) and a first support (SUP1) and a second sliding bearing (SB2) between a second protrusion (SUPCAS2) and a second support (SUP2).
  6. Geared compressor (GCO) according to Claim 1 or 2,
    wherein the compressor casing (CASCO) has an opening (OP) on the side of the gearing (GE), which opening is designed such that the impeller (IMPCO) can be introduced axially into the casing (CASCO) via this opening (OP).
  7. Geared compressor (GCO) according to one of the preceding Claims 1 to 3,
    wherein the bearing elements (BE) each have at least one fixing element (FE1, FE2) which in each case serve to fix the axial position of the protrusions (SUPCAS1, SUPCAS2) with respect to the supports (SUP1, SUP2).
  8. Geared compressor (GCO) according to at least one of Claims 1 to 4,
    wherein the two supports (SUP1, SUP2) are in each case part of a mount that are secured to a base plate (BP) of the geared compressor (GCO) so as to brace themselves, to which base plate (BP) the gearing (GE) is also secured so as to brace itself.
  9. Geared compressor (GCO) according to at least one of the preceding Claims 1 to 5,
    wherein at least one bearing element (BE) is located in each case on one side horizontally next to the axis of rotation (X).
  10. Geared compressor (GCO) according to at least one of the preceding Claims 1 to 6,
    wherein a compressor centre guide (MGCO) is provided on the compressor casing (CASCO), vertically below the axis of rotation (X), which guide is designed with a guide guide (GG) secured to the gearing (GE) or to the base plate (BP) such that the compressor casing (CASCO) is prevented from moving in the circumferential direction of the axis of rotation (X).
  11. Geared compressor (GCO) according to Claim 10,
    wherein the centre guide (MGCO) and the guide guide (GG) are designed such that axial movements are limited to relative thermal expansion of the compressor casing (CASCO), of the base plate (BP), of the gearing (GE) and of the supports (SUP1, SUP2).
  12. Method for assembling a geared compressor (GCO), in particular a geared compressor (GCO) according to one of Claims 1 to 11, wherein, stepwise, first a gearing (GE) is provided together with an impeller (IMPCO) of the geared compressor (GCO) which is able to rotate about an axis of rotation (X), which are mounted so as to transmit torque, and then a compressor casing (CASCO) is brought close to the gearing (GE) in the axial direction such that, in the axial end position of this movement, the impeller (IMPCO) is surrounded by the compressor casing (CASCO),
    characterized in that
    - in a first step the compressor casing (CASCO) with protrusions (SUPCAS1, SUPCAS2) is first supported vertically on supports (SUP1, SUP2) of the geared compressor (GCO), respectively forming pairs of protrusions (SUPCAS1, SUPCAS2) and supports (SUP1, SUP2), wherein in each case a bearing element (BE) is arranged for relative displacement between the protrusions (SUPCAS1, SUPCAS2) and the supports (SUP1, SUP2),
    - in a second step the compressor casing (CASCO) is then made to approach the gearing (GE) axially with the compressor casing (CASCO) increasingly surrounding the impeller (IMPCO), in which context the axial movement is borne and guided between the protrusions (SUPCAS1, SUPCAS2) and the supports (SUP1, SUP2) that are in each case associated with one another in pairs.
EP14758844.6A 2013-09-25 2014-08-29 Geared compressor and assembly method Not-in-force EP3030790B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013219302 2013-09-25
PCT/EP2014/068390 WO2015043879A1 (en) 2013-09-25 2014-08-29 Geared compressor and assembly method

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EP3112693A1 (en) * 2015-07-02 2017-01-04 Siemens Aktiengesellschaft Transmission turbo compressor, method for aligning
EP3205443A1 (en) 2016-02-09 2017-08-16 Siemens Aktiengesellschaft Method for producing a toothed gear, toothed gear, gear driven compressor
EP3581802A1 (en) 2018-06-14 2019-12-18 Siemens Aktiengesellschaft Arrangement and method for the support of the impeller of a radial turbomachine
EP3594506A1 (en) 2018-07-12 2020-01-15 Siemens Aktiengesellschaft Contour ring for a compressor

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US8534986B2 (en) * 2009-08-26 2013-09-17 Dresser-Rand Company Bundle insertion/extraction system and method
DE102010015724A1 (en) * 2010-04-21 2011-10-27 Voith Patent Gmbh Transmission, in particular compressor gear and method for improving the starting behavior of such
JP5550584B2 (en) * 2011-02-25 2014-07-16 三菱重工コンプレッサ株式会社 Compressor, insertion / removal device, and insertion / removal method
WO2013125512A1 (en) * 2012-02-24 2013-08-29 三菱重工コンプレッサ株式会社 Handle guiding device for compressor and handle guiding method for compressor

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EP3030790A1 (en) 2016-06-15
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WO2015043879A1 (en) 2015-04-02

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