CN106232948B - The device and assembly method of the component of fluid dynamic machinery - Google Patents

Abstract

The invention relates to a method for assembly and a device (A) for components of a fluid dynamic machine (FEM), in particular a turbocharger (TCO), said device having a longitudinal axis (X). For a particularly simple and precise assembly it is proposed that the device comprises: - an inner bundle (IB) for placement in the outer casing (OC) of the fluid dynamic machine (FEM); - a low pressure insert ( LPU); - at least one cover (COV) of a hydrodynamic machine (FEM) for closing the outer casing (OC) axially on at least one end side, characterized in that the components are axially Adjacently arranged in the order of cover (COV), low-voltage plug-in (LPU), inner bundle (IB), and the cover (COV) is detachably fastened on the low-voltage plug-in (LPU) and the inner bundle (IB) is detachably Fastened to a low voltage plug (LPU) such that a transportable unit (TU) is formed.

Description

Device and assembly method for components of fluid power machines

technical field

The invention relates to an arrangement of components of a hydrodynamic machine, in particular a turbocharger, having a longitudinal axis and comprising: an inner bundle for placement in an outer housing; a low-pressure insert; and at least one cover, said The cover serves to close the outer housing axially on at least one end side.

Background technique

Such hydrodynamic machines or devices of the type mentioned at the outset are already known, for example, from EP 2 024 646 B1 or EP 1 952 030 B1. The last-mentioned document also describes an assembly method for the turbocharger described there. A hydrodynamic machine is already known from WO 2012/041757 A1, in which an axial end-side cover is provided for closing a housing part of an outer housing.

Tank compressors having a front-side closure cover of the outer housing are already known from US 3,927,763 and DE 10 2012 203 144 A1.

A preferred field of application of the present invention is a turbohydrodynamic machine, in particular a turbocharger, which has a so-called pot-shaped housing, wherein the pot-shaped housing has axial end faces on both sides A housing part that is open at the top and is closed pressure-tightly on the axial end side by means of a cover. As described in EP 1 952 030 B1, the so-called inner bundles are inserted axially into these pressure-tight outer housing tanks, wherein the rotor equipped with the impellers is regularly arranged in the coaxial central axial direction of the inner bundles. extended.

Furthermore, a preferred field of application of the invention lies in centrifugally operating machines, ie radial turbochargers or radial turboexpanders. All embodiments that relate here to radial turbochargers also apply, mutatis mutandis, to radial turboexpanders when the corresponding flow direction is reversed.

Geometrical designations, such as radial, axial, tangential or circumferential directions—when not otherwise specified—always refer to the longitudinally extending center axis of the rotor's axis of rotation or of the toe-in, outer shell, In this case, apart from a small number of expected or tolerance deviations which are not important for the invention, the axes essentially coincide. Predicted deviations can occur, for example, due to rotational speed-related changes in the oil film of the oil bearing.

The jointing of radial turbines in the axial direction is always associated with special effort, since the so-called inner tow in conjunction with other components, such as the rotor, must be assembled into a transportable unit and inserted axially without damage into the usually cylindrical in a tank shell. In this case, damage to adjoining components, such as damage to the corresponding cover seal or shaft seal, or to a deflection of the rotor relative to a static component of the transportable unit, namely the stator, can result. time damage.

Engagement by means of vertically inserting the transportable unit into the outer housing with full use of gravity is generally not possible, at least at the workplace, since this requires corresponding lifting heights and loads in the workshop capacity crane. Furthermore, the assembly must then be rotated again into the working position, which likewise entails a risk of damage and necessitates a reorientation of the housing.

Therefore, EP 1 952 030 B1 responds to this by providing a sliding surface on the outer housing and inserting the assembled assembly consisting of rotor, inner bundle and other components axially into the outer housing by means of an additional device, wherein The additional device has essentially the shape of a horizontal C-shaped hook, such that one arm of the C-shaped piece is supported from above on the outer shell and the other arm is flexurally rigidly mounted on or partly formed by the inner toe. Such devices have only a limited load capacity and are therefore only suitable for machines up to a certain construction height. Due to the large torque, the device can be easily deformed.

Contents of the invention

Proceeding from the described problems and disadvantages of the prior art, the object of the present invention is to provide a device of the type mentioned at the outset, which allows in particular efficient assembly and at the same time does not increase the complexity of installation.

A further object of the invention is to improve the standardization for the different structural dimensions of hydromechanical or radial turbochargers.

The invention solves the above disadvantages and problems of the prior art by means of a device for a component of a hydrodynamic machine and by means of a method for assembling a device for a component of a hydrodynamic machine. Advantageous developments of the invention are described below.

In the context of the present invention, a hydrodynamic machine is understood to be a fluid machine which converts technical work into flow work—or vice versa. Preferably, the invention relates to a radial turbocharger. In principle, the invention can also be applied, mutatis mutandis, to radial turboexpanders with corresponding flow reversals. In particular, the so-called inner bundle of the device is contemplated to be arranged in the outer housing or in the outer housing casing of the completed machine.

In the terminology of the present invention, the attributive "end side", for example in the case of "end side" or "on the end side", refers to the longitudinal axis and means the extension of a plane with a surface normal in the direction of the longitudinal axis.

In this case, the inner bundle includes in particular the stationary flow-guiding component, which can also be referred to as a flow stator or directly as a stator. In the joining arrangement of the hydrodynamic machine, a rotor extends along the central longitudinal axis of the inner bundle, said rotor having rotor blades or at least one rotor wheel—also referred to as impeller. In radial turbines, the inner bundle usually comprises a return stage, which, in the case of a compressor, directs the flow back radially outwardly towards the radially inwardly, downstream of each impeller. In addition, so-called return stages have the purpose of providing a different swirl or changing the swirl of the process fluid absorbing and releasing the flow work, or eliminating swirl as much as possible from the preceding rotor or rotor blade stage. spin.

In the case of a radial turbocharger, the component referred to in the present invention as the low-pressure insert is the flow guide of the inlet into the machine and is often also referred to as the suction insert. Usually and preferably, during operation, the process fluid is fed radially to the radial turbocharger with the device according to the invention and is distributed by means of low-pressure inserts on the circumference around the rotational or longitudinal axis of the machine, and Diverted in the axial direction or fed to the inlet of the first impeller.

In the sense of the invention, the outer housing for the device according to the invention is formed as a substantially cylindrical housing which is formed axially on the end side, preferably on both sides, so as to be closed by means of a cover or to be closed by means of a cover. closed. Preferably, the two covers have the same axial joining direction. That is to say that the cover mounted on the transportable unit according to the invention penetrates the shell-shaped—preferably inner cylindrical—structure of the outer housing towards the end position of the cover.

Preferably, the inner bundle of the transportable unit reaches an end position during the axial movement, which is preferably defined by an axial stop in the outer housing for the inner bundle.

In this position of the transportable unit, the cover can already be arranged in its axial end position, where it closes off the outer housing axially on one side at the end.

Alternatively and preferably, in this axial position the cover is moved further axially from the inner toe towards the final axial position.

In both cases it is preferred that, in the case of a radial turbocharger, radial projections are provided on the outer housing shell, which protrude radially inwards, on the outer casing The cover is supported on the body shell to prevent axial displacement from the outer body shell. In the case of a compressor, this support absorbs the internal pressure acting on the cover.

When separating the cover from the inner bundle, it is expedient during the joining process to pull the cover axially into the final position by means of a pulling device arranged on the outer shell. This can be achieved, for example, by means of formed parts or webs arranged on the outer housing and by means of cooperating bolts, wherein the bolts, for example extending through the recesses into the web, screw the cover into the respectively provided cover. It is pulled axially towards the final position while in its mating thread. During operation, the device is able to permanently fix the cover in its end position on the outer housing, so that the cover is also securely positioned when there is a negative pressure in the outer housing.

Preferably, the shoulder in the outer housing for the cover is provided over the entire circumference and has at least one seal, or cooperates with the seal or the seal carrier, so that the cover of the transportable unit is pressurized internally The sealing device is pressed axially outwards and seals against the outer housing.

In the context of the present invention, a transportable unit is understood to mean that the unit can be moved without damage from the pre-assembly location to the final assembly location by means of the usual transport aids. Transport aids include, for example, vehicles with corresponding support devices, and also cranes, which lift the transportable unit by means of a corresponding load lifting mechanism on the unit and are also movable in the horizontal direction. The transportable unit is fastened here at defined suspension points by means of a lifting mechanism and, apart from that, does not require additional stabilization, but is itself sufficiently rigid that no damage-causing damage occurs to the individual parts relative to one another. offset.

The device according to the invention enables a particularly efficient joining method of a corresponding hydrodynamic machine, since the cover is fitted in the casing-shaped outer housing to close off one side of the outer housing axially at the end side and the inner bundle and the low-voltage insert are integrated. Axial insertion can be done in a single step. Preferably, the arrangement consisting of the cover, the low-voltage insert and the inner bundle is also assigned to the rotor, which extends coaxially through these components along the longitudinal axis of the inner bundle or the axis of rotation of the rotor, so that these components are provided for this purpose The rotor is annularly surrounded at a specific axial location. Preferably, the rotor is fixed radially and axially in the device. In this case, the rotor preferably has no task for centering or for fixing.

In conventional configurations it is necessary that the cover must be arranged or mounted on the outer housing shell in a separate assembly step before the rotor and/or the inner bundle is inserted into the outer housing.

This configuration according to the invention of the device is particularly advantageous when the outer housing is closed axially at the end faces on both sides with a cover in each case, wherein the first cover has the same axial engagement as the second cover. direction and accordingly the first cover must be guided in the axial direction through the outer housing shell before it reaches its final position.

The device according to the invention therefore facilitates the standardization of hydrodynamic machines with the device according to the invention, since during the standardization of the outer housing preferably only the cover/covers are individually designed with specific structural dimensions, or also preferably The cover/covers are designed to be identical in a series of structural dimensions and only the carrier is an individual further component. Belonging to these individual further components are in particular a shaft seal mounted on the cover and a bearing unit mounted and supported on the cover, said shaft seal being also supported on the cover, said bearing unit radially and/or Or axially support the rotor. Such a modular construction with individualization of the cover components enables a uniform formation of the outer housing shell independent of the different structural dimensions of the hydrodynamic machine.

A preferred construction solution of the present invention proposes that the inner bundle is detachably fastened on the low-voltage insert and the cover is detachably fastened on the low-voltage insert, so that these three components are mutually stabilized to prevent axial, radial and Offset oriented in the circumferential direction. Preferably, the circumferentially extending shape of the cover can be adapted to the second circumferentially extending shape of the low-voltage insert, so that a radial centering of the two components relative to one another is brought about during contact contact. . In order to limit the position relative to one another in the circumferential direction, at least one centering pin can each be provided between the individual components, said centering pin being inserted into corresponding recesses of two adjacent components in a form-fitting manner. Preferably, the intermediate base plate and the low-voltage insert are tensioned relative to each other, in particular in the direction of the longitudinal axis, ie preferably horizontally, by means of bolts or similar fastening elements.

The cover, which is moved axially towards the end position through the outer housing, can be fastened releasably on the low-voltage insert or can be positioned in a centering manner by being loosely seated there. In order to position the cover correctly in the circumferential direction, it is expedient to ensure the circumferential position on the inner bundle or on the low-voltage insert, for example by means of centering pins.

The axial fastening of the cover as part of the transportable unit on the transportable unit is preferably designed such that the fastening can be released from the outside, ie from outside the outer housing, in the engaged state. Particularly expediently, this can be achieved by means of a first assembly sleeve, which supports the cover axially on the rotor, wherein the rotor extends through the opening of the cover.

It is preferred here that the cover is also a carrier of the shaft seal in order to seal the gap between the rotor and the cover during operation.

Also for this purpose, according to a preferred embodiment of the invention, the low-pressure insert is formed in one piece in the circumferential direction, said low-pressure insert comprising: the cover-side first flow profile, the guide vanes and the bundle-side second flow profile. Profiles, wherein the cover is mounted on the first flow profile and the inner bundle is mounted on the second flow profile by means of the fastening options already explained above. It can preferably be provided here that the guide vane is the only direct connection between the first cover-side flow profile and the bundle-side second flow profile. In this case, the low-pressure insert can, for example, be designed as a welded structure, wherein the guide vanes are welded to the flow profile. Another possibility is to obtain it by milling from a one-piece complete part or by spark erosion. Another possibility for the production of the low-voltage insert consists in using additive manufacturing methods, for example by means of laser sintering.

In order not to cause complicated sealing arrangements in the area of the joints of the low-pressure insert in the area close to the outer housing, it is preferred that the low-pressure insert is inseparable in the circumferential direction or has no joints extending in the radial direction. With regard to the joining, this preferred configuration is possible according to the invention, since the low-pressure insert can generally be pushed axially onto the rotor, which is usually combined with the inner tow in a form-fitting manner, and mounted on the inner tow. In the same way, the cover is preferably pushed onto the rotor or mounted on the low-voltage insert. In order that the rotor does not need to be separated axially, it is expedient if, in radial machines, the subassembly or inner bundle of the return stage is formed separately in the joint in the circumferential direction. It is also expedient here if the inner toe is composed of axial inner toe subsections which are formed separately in the joint. It is expedient here that the individual inner tow subsections each have a lower part and an upper part, and that the lower parts of the inner tow subsections can be joined axially to form an inner tow subsection and that the upper parts of the inner tow subsections can be axially releasably fastened to each other. The inner bundle upper part is combined in a fixed manner, so that the inner bundle lower part and the inner bundle upper part themselves form a transportable unit as an intermediate step in assembly.

Preferably, the axial extension of the device according to the invention on the side of the inner bundle facing away from the cover or the low-pressure insert has a high-pressure collector, which is preferably formed inseparably in the circumferential direction. This inseparable embodiment of the high-pressure collector also has the advantage of avoiding the need for seals for joints.

In order to add the rotor to the device according to the invention as a transportable unit without damage, it is expedient to provide a first assembly sleeve which, when transporting the transportable unit comprising the rotor, holds the rotor radially supported on the cover. The first assembly sleeve is expediently designed in such a way that it can be removed axially from the outer side of the cover. Accordingly, the cover is preferably first mounted centrally, detachably fastened or loosely mounted on the low-voltage insert, and then the first assembly sleeve is mounted on the cover as a support for centering the rotor. In this way, the rotor is guided concentrically to the longitudinal axis in the inner toe. For the purpose of centering the rotor, it is expedient if a second assembly sleeve is arranged between the rotor and the high-pressure collector, supporting the rotor radially on the high-pressure collector. The second assembly sleeve is preferably also designed in such a way that it can be removed from the outside of the device after it has been fully inserted into the outer housing. In this case, at least one assembly sleeve can be formed separately in the circumferential direction and assembled by means of fastening elements in such a way that the rotor is clamped radially. Preferably, at least one or both mounting sleeves rest not only radially on the rotor but also axially on the rotor shoulders, so that any damage caused by the mounting sleeves relative to the inner toe, the cover and the low pressure is excluded. The axial offset caused by the form fit of the insert.

This axial stabilization of at least one assembly sleeve, preferably both assembly sleeves, enables the axial stabilization already explained above of the cover, which is preferably arranged axially loosely on the low-pressure insert and can be mounted by means of a first assembly. The sleeve is axially stable.

Description of drawings

In the following text, the invention is explained in more detail with reference to the drawings using specific exemplary embodiments. The accompanying drawings show:

1-5 each show a longitudinal section through a device A comprising components of a hydrodynamic machine FEM.

All directional specifications, such as axial, radial, tangential or circumferential directions—if not stated otherwise—are always relative to the longitudinal axis X of the rotor. The longitudinal axis X of the rotor corresponds to the axis of rotation of the rotor R during operation. Except for unimportant expected or unintended deviations within the scope of the present invention, the central longitudinal axes of the impeller, inner bundle IB, outer shell OC, cover COV, low pressure plug LPU and collector COL are substantially Stretch on overlap.

detailed description

FIGS. 1-5 each show a longitudinal section through a device A with a longitudinal axis X including components of a hydrodynamic machine FEM, ie a turbocharger TCO. In this case, FIGS. 1-5 show the different stages in which the components are assembled in successive steps with respect to the assembly process, FIG. 1 showing the smallest number of components and FIG. 5 the largest number of components.

In FIG. 1 , the axial inner bundle subsections RS1 , RS2 , RS3 are assembled axially along the longitudinal axis X to form an inner bundle lower IBL of the inner bundle IB. The lower parts of the axial inner bundle subsections RS1 , RS2 , RS3 are fastened to one another by means of screws. The rotor R extending along the axis X with four successive impellers IMP1 , IMP2 , IMP3 , IMP4 descends into the inner bundle lower part IBL. Here, measures are taken that the rotor is not placed directly—for example by means of a shaft seal—on the inner toe lower IBL and does not cause damage.

FIG. 2 shows the assembly sequence following the illustration of FIG. 1 , the inner bundle upper IBU assembled axially from the axial components is placed radially on the inner bundle lower IBL so that a complete inner bundle IB is formed, the rotor R extends through said inner toe along its longitudinal axis X. The longitudinal axis X extends substantially along the joint plane of the inner bundle IB. The rotor R is thus positively connected to the inner bundle IB, since the individual impellers IMP1 , . In order to be able to form the shaft SH axially inseparable, the inner bundle IB or the components of the inner bundle IB are designed in such a way that it can be disassembled into a lower part and an upper part—that is to say separated in the circumferential direction in the joint.

FIG. 3 shows another stage in the assembly of the device A . Now, the low-voltage plug LPU is moved in the axial direction closer to the inner bundle IB and connected axially to the inner bundle IB by means of the fastening element FE1.

Likewise, like the individual axial subsections RS1 , RS2 , RS3 of the inner bundle IB, the low-pressure plug LPU is also provided with a central axial opening through which the rotor R or the shaft SH of the rotor R can extend. Unlike the components of the inner bundle IB, the low-voltage plug LPU is inseparable in the circumferential direction. The low-pressure plug LPU has a first flow profile IGV1 facing away from the inner bundle IB and a second flow profile IGV2 relatively closer to the inner bundle IB, wherein the first flow profile IGV1 is secured to the second flow profile LGV2 by means of the guide vanes VA. ground connection. The axial fastening of the first fastening element FE1 on the inner bundle IB by means of the low-pressure insert LPU is designed such that the second flow contour IGV2 is screwed on the inner bundle IB. The first flow profile IGV1 is here fastened to the second flow profile IGV2 exclusively by means of the guide vanes VA. The guide vane VA is here preferably formed in one piece with the two flow contours IGV1 , IGV2 . This one-piece construction can preferably be achieved by means of welding or can also be the result of a one-piece production. In the case of a monolithic production, cutting machining or machining by means of spark erosion can be applied. An alternative manufacturing method for low voltage plug-in LPUs is offered by relatively new methods of "additive manufacturing" such as laser sintering or selective laser melting. In radial direction, the low-pressure insert LPU is positioned on the inner toe IB by means of a first centering shoulder CS1. In addition, it is proposed that the assembly is assisted by means of mating pins PB1 , so that an upside-down or incorrectly positioned installation of the inner bundle IB in the circumferential direction relative to the low-voltage plug LPU is also excluded.

On the side shown axially to the right in FIG. 3 opposite the side of the low-voltage plug LPU, a collector COL is also mounted on the inner bundle IB, said collector being axially centered and fastened on On the inner bundle IB. The third support shoulder is used here for the correct radial orientation of the collector COL on the inner bundle IB.

Furthermore, the collector COL is stabilized relative to the inner bundle IB by means of the fastening element FE3.

In order not to cause damaging abutment between the rotor R and the stator parts, namely the cover COV, the inner bundle IB and the collector COL, a first assembly sleeve AS1 is mounted on the cover COV (see FIGS. 4, 5 ) and the second assembly sleeve AS2 is installed on the collector COL, the first assembly sleeve and the second assembly sleeve are used to secure the rotor R on these two components to prevent offset and serve as a support to support gravity and other forces.

FIG. 4 shows the insertion of the device A into the outer housing OC, wherein the insertion aid ASS also supports the insertion of the device A against gravity and orients the device A centrally. Before the insertion, as in FIG. 4 , a cover COV is fitted onto the component assembly shown in FIG. 3 , said cover being arranged axially on the low-voltage plug LPU. The cover COV is also secured on the low-voltage insert LPU against twisting in the circumferential direction by means of the matching element PB2 and the second centering shoulder CS2 serves for correct radial orientation of the cover COV on the low-voltage insert LPU. The cover is fixed axially on the rotor by means of the first assembly sleeve AS1, which is axially held in place in the second assembly sleeve AS2. The unit TU formed in this way is then placed on the insertion aid ASS.

The two assembly sleeves AS1 , AS2 can be removed from the outside from the cover COV or from the outside of the collector COL or can also be fitted. The second assembly sleeve AS2 is formed separately in the circumferential direction, so that the rotor R or the shaft SH of the rotor R can be clamped in the radial direction by the assembly sleeve AS2 in a manner not shown. Furthermore, an axial offset of the shaft SH from the mounting sleeve AS1 , AS2 is prevented by the axial bearing of each radial shoulder of the shaft SH against the respective mounting sleeve AS1 , AS2 . On the cover COV and on the collector COL are respectively provided suspension points CON, by means of which suspension points the device A including the rotor R can be suspended and moved as a transportable unit TU. After the device A has been inserted axially into the outer housing OC, the assembly sleeves AS1 , AS2 are then removed from the device A. Immediately after insertion of the outer housing OC, the cover COV is brought into contact with the shoulder of the outer housing OC from the inside. In this case, after reaching the end position of the inner tow, the cover COV is pressed axially by the inner toe and pulled into its axial end position. In this case, a separate seal carrier (not shown) can be used for sealingly abutting the cover COV relative to the outer housing OC. As an alternative, the seal can also be arranged at a suitable point, in particular snugly in the axial direction, in the outer housing OC or the cover COV.

As shown in FIG. 5, a first hoisting point HP1 is provided on the cover COV and a second hoisting point HP2 is provided on the high pressure collector COL, and the components, namely the cover COV, the low voltage plug-in LPU, the inner bundle IB, The high pressure collectors COL, are detachably fastened to each other, so that the elements can be transported suspended without other supports on the lifting points HP1 , HP2 without offsetting each other. For this purpose, the transportable unit TU is suspended at lifting points HP1 , HP2 on a crossbeam LF which enables a transverse force-free suspension.

The transportable unit TU or device A has at least one roller W1, preferably a pair of rollers, by means of which the device A can be moved with low friction on the insertion aid ASS and inside the outer housing OC, so that the device A can be moved by into the final assembly position in the outer housing OC. The second wheel W2 is arranged on the assembly bracket ASS2, which is mounted axially on the collector COL and, before reaching the final position, enables the device A to be positioned along the insertion aid ASS and in the outer housing OC. The axial direction is additionally oriented.

Claims (15)

1. a kind of device (A) of the component of fluid dynamic mechanical (FEM), described device has a longitudinal axis (X), and including：

- it is used for the internal beam (IB) that is arranged in the fluid dynamic mechanical (FEM) shell body (OC)；

The low pressure plug-in unit (LPU) of-fluid dynamic mechanical (FEM)；

At least one lid (COV) of-fluid dynamic mechanical (FEM), it is described to cover for axially existing at least one side The shell body (OC) is closed in side,

Wherein described device is configured to so that the lid (COV) is in assembling axially across the case shape of the shell body (OC) Structure be directed into the final position that referable uses, wherein in the final position, the lid (COV) is axially being held The shell body (OC) is closed in side on side,

Wherein described lid (COV) abuts in the shell body (OC) convex shoulder after inserting in the shell body (OC) from inside On,

Characterized in that,

These components are axially adjacent set with the order of lid (COV), low pressure plug-in unit (LPU), internal beam (IB), and

The lid (COV) is removedly fastened on the low pressure plug-in unit (LPU) and the internal beam (IB) is removedly fastened on On the low pressure plug-in unit (LPU) so that form the unit (TU) that can be transported.

2. device (A) according to claim 1,

Wherein high voltage collector (COL) is axially disposed at the internal beam (IB) side and is removedly fastened on the internal beam (IB) on so that the unit (TU) that can be transported includes following module with illustrated axial order：Lid (COV), low pressure are inserted Part (LPU), internal beam (IB), high voltage collector (COL).

3. device (A) according to claim 2,

Wherein described internal beam (IB) is fixed on the low pressure plug-in unit (LPU) and the lid (COV) is fixed on the low pressure plug-in unit (LPU) on, or

The internal beam (IB) is fixed on the low pressure plug-in unit (LPU) and the lid (COV) is fixed on the low pressure plug-in unit (LPU) On, and the high voltage collector (COL) is fixed on the internal beam (IB), or

The internal beam (IB) is fixed on the low pressure plug-in unit (LPU), and the lid (COV) is by means of loading the internal beam (IB) rotor (R) that is in and axially being consolidated there in position is fixed on the low pressure plug-in unit (LPU), and described High voltage collector (COL) is removedly fastened on the internal beam (IB),

So that these components consolidate each other respectively, to prevent skew that is axial, radial direction and being oriented along ring circumferential direction.

4. device (A) according to claim 3,

The first handling point (HP1) is wherein provided with the lid (COV) and is hung on the high voltage collector (COL) provided with second Point (HP2), and element are transported, that is, covers (COV), low pressure plug-in unit (LPU), internal beam (IB), high voltage collector (COL), removedly It is secured to one another so that the element can hang fortune with not having other supports on handling point (HP1, HP2) without skew each other It is defeated.

5. the device (A) according to any one of the claims,

Form wherein described low pressure plug-in unit (LPU) single type, and including：First flow profile portion (IGV1) of lid side, it is oriented to Blade (VA) and the second flow profile portion (IGV2) of internal beam side, wherein the lid (COV) is fastened on first flow profile In portion (IGV1), and the internal beam (IB) is fastened on the second flow profile portion (IGV2).

6. the device (A) according to any one of the claims 1 to 4,

Wherein described low pressure plug-in unit (LPU) can not dividually be formed along ring circumferential direction.

7. the device (A) according to any one of the claims 1 to 4,

The axial internal beam sub-portion section (RS1, RS2, RS3) of wherein described internal beam (IB) or the internal beam (IB) exists along ring circumferential direction Dividually formed in junction surface.

8. the device (A) according to any one of the claims 2 to 4,

Wherein described high voltage collector (COL) can not dividually be formed along ring circumferential direction.

9. the device (A) according to claim 3 or 4,

Wherein rotor (R) extends along the longitudinal axis (X), and the component, that is, covers (COV), low pressure plug-in unit (LPU), interior Beam (IB), high voltage collector (COL), circlewise surround the rotor (R) along ring circumferential direction respectively.

10. device (A) according to claim 9,

Wherein described rotor (R) is radially supported and is fastened on the lid (COV) by means of the first assembling sleeve (AS1).

11. device (A) according to claim 9,

Wherein described rotor (R) radially supports and is fastened on the high voltage collector by means of the second assembling sleeve (AS2) (COL) on.

12. device (A) according to claim 10,

Wherein described rotor (R) radially supports and is fastened on the high voltage collector by means of the second assembling sleeve (AS2) (COL) on.

13. device (A) according to claim 12,

Wherein described rotor (R) is by means of the described first assembling sleeve (AS1) and/or the second assembling sleeve (AS2) axial direction Ground is unidirectional and/or bidirectionally fastens.

14. device (A) according to claim 1,

Wherein described Hydrodynamic machine tool (FEM) is turbocharger (TCO).

15. a kind of method for being used to assemble the device (A) according to any one of the claims 1 to 14,

Characterized in that, methods described has following steps：

A) internal beam bottom (IBL) is provided,

B) rotor (R) is fitted into the internal beam bottom (IBL),

C) internal beam top (IBO) is placed,

D) the internal beam top (IBO) is fastened on the internal beam bottom (IBL) to form internal beam (IB),

E)-low pressure plug-in unit (LPU) is axially mounted on the internal beam (IB),

- lid (COV) is axially mounted on the low pressure plug-in unit (LPU), and the first assembling sleeve (AS1) is arranged on institute State between rotor (R) and the lid (COV),

- exit collector is axially mounted on the internal beam (IB), and the second assembling sleeve (AS2) is arranged on described Between rotor (R) and high voltage collector (COL),

Wherein, from the axial side for axially deviating from the internal beam (IB), the lid (COV) or described high voltage collector (COL) It is described first assembling sleeve (AS1) and it is described second assemble sleeve (AS2) can be respectively in the rotor (R) and the lid (COV) or assembly or disassembly between the rotor (R) and the high voltage collector (COL),

Wherein by the internal beam (IB), the low pressure plug-in unit (LPU), lid (COV), the high voltage collector (COL) and the institute The assembly that rotor (R) is stated together with the described first assembling sleeve (AS1) and the second assembling sleeve (AS2) composition is formed and can transported Defeated unit (TU),

F) unit (TU) that can be transported is axially inserted into the shell body case (OCC) of shell body (OC),

Wherein described lid (COV) is directed into final position axially across the structure of the case shape of the shell body (OC) herein In,

Wherein described lid (COV) abuts in the shell body (OC) convex shoulder after inserting in the shell body (OC) from inside On,

G) the first assembling sleeve (AS1) and the second assembling sleeve (AS2) are removed.