Device for assembling and disassembling a component of a gas turbine

Abstract

A device for assembling and disassembling a component of a gas turbine, having a rail system with at least two running rails. A carriage which can be pushed on the running rails along a specified movement axis is provided on the running rails, and the carriage has a securing device which is designed to secure a fitting section of a first carriage insert in a force-fitting manner such that the first carriage insert is moved together with the carriage when the carriage is moved on the running rails.

Claims

1. A device for installing and removing a component of a gas turbine, comprising: a rail system having at least two running rails, a carriage on the running rails which is displaceable on the running rails along a redetermined displacement axis, wherein the carriage has a fixing device which is formed to fix a fitting section of a first carriage insert in a force-fitting manner such that, when the carriage is displaced on the running rails, the first carriage insert is also displaced along therewith, wherein the carriage has a height-adjustment device which is designed to adjust the fixing device in height when installing or removing the component, wherein the first carriage insert has rollers on a side opposite the fitting section.

2. The device as claimed in claim 1, wherein the first carriage insert is connected exclusively via surface contact of the fitting section to the carriage.

3. The device as claimed in claim 2, wherein the first carriage insert is connected exclusively via surface contact of the fitting section to the carriage and a more extensive connection of the two is not provided.

4. The device as claimed in claim 1, wherein the fixing device is designed as one or more transverse struts between two slide sections of the carriage, wherein the one or more transverse struts and regions of the fitting section of the first carriage insert are able to engage into one another.

5. The device as claimed in claim 4, wherein the height-adjustment device is provided in or on the two slide sections.

6. The device as claimed in claim 1, wherein the first carriage insert has, on a side opposite the fitting section, a shaped section which is designed for the insertion of a further, second carriage insert, wherein the second carriage insert has, for its part, a section which is able to be connected in a force-fitting manner to the shaped section.

7. The device as claimed in claim 6, wherein when installing or removing the component, the second carriage insert has rollers on a side opposite the shaped section.

8. The device as claimed in claim 6, wherein the first carriage insert and/or the second carriage insert are/is of mirror-symmetrical design, wherein, when installing or removing the component, a plane of mirror symmetry extends parallel to the displacement axis.

9. The device as claimed in claim 8, wherein the first carriage insert and/or the second carriage insert have/has at least in each case one roller on each of the mutually opposite sides, which sides are defined by the plane of mirror symmetry.

10. The device as claimed in claim 6, when installing or removing the component, the second carriage insert only regionally covers the first carriage insert on a side provided for the support of a component.

11. The device as claimed in claim 6, wherein the first carriage insert and/or the second carriage insert has at least one roller which is adjustable in height.

12. The device as claimed in claim 11, wherein the first carriage insert and/or the second carriage insert have two rollers which are adjustable in height.

13. The device as claimed in claim 1, wherein the rail system is adjustable in height.

14. The device as claimed in claim 13, wherein individual running rails are adjustable only in a stepwise manner.

15. A method for installing and removing a component of a gas turbine with the device as claimed in claim 1, the method comprising: providing thea rail system having at least two running rails, wherein there is provided on the running rails thea carriage which is displaceable on the running rails along thea predetermined displacement axis; fastening the rail system to the gas turbine; placing the first carriage insert on the carriage and fixing said insert in a force-fitting manner with the aid of the fixing device of the carriage; and displacing the carriage on the running rails, wherein the first carriage insert is also displaced along therewith.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will be described more specifically in detail below on the basis of individual figures.

(2) In the figures:

(3) FIG. 1 shows a perspective detail view of an embodiment of the device according to the invention;

(4) FIG. 2 shows a detail feature of the carriage, which may be provided as part of an embodiment of the device according to the invention, such as is known for example from FIG. 1;

(5) FIG. 3 shows a detail feature of a first carriage insert with height-adjustable rollers, such as may be provided for example in an embodiment of the device according to the invention according to FIG. 1;

(6) FIG. 4 shows an illustration, in the form of a flow diagram, of an embodiment of the method according to the invention for using the device described above and below.

DETAILED DESCRIPTION OF INVENTION

(7) FIG. 1 shows a perspective illustration of an embodiment of a device 1 according to the invention, which is provided for installing or removing a component (not shown in the present case) of a gas turbine 10. The component involved is for example the bearing, or components operatively connected thereto, of the gas turbine 10.

(8) The device 1 has a rail system 20 which comprises two running rails 21 in the present case. The running rails 21 themselves have, on their surface, ball rollers (not further provided with reference signs), on which a carriage 30 can be displaced along a predetermined displacement axis VA. The carriage 30 has two slide sections 32 which each bear, and have rolling contact, on the ball rollers of the individual running rails 21. Furthermore, the carriage 30 has a fixing device 31 which, in the present case, is formed by three transverse struts (not separately provided with reference signs). The transverse struts are in each case spaced apart by the same distance from the in each case adjacent transverse strut. Moreover, the transverse struts are connected to an upper plate section of the slide section 32, wherein the upper plate section has a height-adjustment means 35 which is designed in the form of an adjustment screw 36. By suitably turning the adjustment screws 36, the upper plate section is moved relative to a lower plate section of the slide section 32, with the result that the fixing device 31 is also adjusted in height. The adjustment screws 36 allow for example an adjustment of the height level of the carriage 30 with respect, for example, to a component which is to be inserted into the gas turbine or is to be removed from the latter.

(9) The present device 1 furthermore comprises a first carriage insert 40 which, for insertion into the carriage 30, has a suitable fitting section 41 such that, for example by insertion of the first carriage insert 40 in a manner perpendicular to the displacement axis VA, both, that is to say the first carriage insert 40 and the carriage 30, are able to be connected to one another in a force-fitting manner. In this case, the force fit relates to an action of force parallel to the displacement axis VA. In comparison with differently directed directions of an action of force, a force fit does not need to be present. Specifically, the present fitting section 41 has two projections, which bear against surfaces of the transverse struts of the fixing device 31 such that, when the carriage 30 is displaced, it is also possible for example for the first carriage insert 40 to be displaced in the direction of the displacement axis. The first carriage insert 40 also has, on the side opposite the fitting section 41, two sets of rollers 42, which are advantageously designed in the form of ball rollers. In this case, the two sets of rollers 42 are in each case mutually opposite with respect to a plane of symmetry (not depicted further), which extends through the displacement axis VA. The first carriage insert 40 is also of mirror-symmetrical design, with the result that, for example, an annular or cylindrical component can then be laid on the rollers 42 of the first carriage insert 40 and orients itself on the carriage insert.

(10) Furthermore, the first carriage insert 40 has a shaped section 43 on the side opposite the fitting section 41, which shaped section, in the present case, is designed for example merely in the form of a groove which extends perpendicular to the displacement axis VA. A suitably formed section of a second carriage insert 50 may then in turn be fitted into said groove, with the result that the second carriage insert 50 cannot be displaced relative to the first carriage insert 40 under an action of force in the direction of the displacement axis VA. The second carriage insert 50, after being correspondingly attached to the first carriage insert 40, partially covers the surface of the latter, said surface being provided for the support of a component to be installed or removed. In a manner comparable to the first carriage insert 40, the second carriage insert 50 in turn has two rollers 52, which are likewise in turn arranged on different sides of the plane of mirror symmetry mentioned above. If then a component is not formed such that it can be laid on merely one support surface, but requires the support via multiple surfaces attached at different height levels, then it is possible for one part of the component to be supported for example on the first carriage insert 40 and a further part to be supported on the second carriage insert 50. The combination of both carriage inserts 40 and 50 thus also allows components of more complex shape to be supported safely.

(11) FIG. 2 shows a partial aspect of an embodiment of the carriage 30, such as may be provided for example in the embodiment as per FIG. 1 shown above. In this case, in particular the enlarged image section of the figure illustrates the principle of the height adjustment means 35 with the aid of the adjustment screws 36 which have already been described above. The adjustment screws 36 move for example an upper plate section (not provided with a reference sign) relative to a plate section situated further below (likewise not provided with a reference sign), with the result that, when the respective adjustment screws are turned, both plate sections are able to be moved relative to one another. The movement of the different plate sections achieves a height adjustment of the fixing device 31 of the carriage 30 and thus allows for example an adjustment of the height setting of the carriage 30.

(12) FIG. 3 shows a detail feature of a first carriage insert 40 having height-adjustable rollers 42. In particular, the first carriage insert 40 has two pairs of height-adjustable rollers 42, which are arranged on side opposite the fitting section 41. The rollers 42 are designed in the form of ball rollers which have a cylindrical housing 45 which is in each case recessed in the carriage insert 40 in a blind hole 44.

(13) A height adjustment of the rollers 42 can then be achieved in that the rollers 42 are temporarily removed from the blind hole 44 in order to introduce spacer plates (not shown in the present case) between the housing 45 of the rollers 42 and the bottom of the blind hole 44. Subsequently, the rollers 42 are inserted as intended again, with the result that the housings 45 of the rollers 42 partly protrude from the blind hole 44 but are still supported against the spacer plates and thus indirectly against the bottom of the blind hole 44. According to the thickness of the spacer plates, it is also thus possible to compensate for only small differences in height between the individual rollers 42, or it is also possible to realize desired, small differences in height even if the insertion of a second carriage insert 50 (not shown in the present case) is not an option owing to its extent.

(14) FIG. 4 shows an illustration, in the form of a flow diagram, of an embodiment of the method according to the invention for using a device described above, which method comprises the following steps:—providing a rail system 20 having at least two running rails 21, wherein there is provided on the running rails 21 a carriage 30 which is able to be displaced on the running rails 21 along a predetermined displacement axis VA (first method step 101);—fastening the rail system to a gas turbine 10 (second method step 102);—placing a first carriage insert 40 on the carriage 30 and fixing said insert in a force-fitting manner with the aid of a fixing device 31 of the carriage 30 (third method step 103);13 displacing the carriage 30 on the running rails 21, wherein the first carriage insert 40 is displaced along therewith too (fourth method step 104).

(15) Further embodiments will emerge from the dependent claims.