Tilting pad bearing

Abstract

The invention relates to a tilting pad bearing (1) for mounting a shaft, which bearing comprises a housing (10) with an inner side (8) and a housing longitudinal axis (L) and at least one tilting pad (2) with a rear side (6) which faces the inner side (8) of the housing (10), wherein an elevation (22) arranged on the rear side (6) of the at least one tilting pad (2) is arranged in a depression (12), which is arranged in the inner side (8) of the housing (10), in such a way that a first contact face (26) present on the elevation (22) bears against a second contact face (20) on a bottom of the depression (22).

Claims

1. A tilting pad bearing for mounting a shaft, comprising a housing with an inner side and a housing longitudinal axis; and at least one tilting pad with a rear side which faces the inner side of the housing, wherein an elevation provided on the rear side of the at least one tilting pad is arranged in a depression provided in the inner side of the housing such that a first contact face present on the elevation bears against a second contact face on a base of the depression, wherein the depression has a hollow cylindrical side wall and a circular base, wherein the elevation is rotationally symmetrical about an elevation longitudinal axis, wherein the elevation longitudinal axis is perpendicular to the housing longitudinal axis, and wherein the elevation has a bead protruding radially outward relative to the elevation longitudinal axis.

2. The tilting pad bearing as claimed in claim 1, wherein one or more of the first contact face and the second contact face are curved.

3. The tilting pad bearing as claimed in claim 1, wherein the bead has a circular cross-section.

4. The tilting pad bearing as claimed in claim 3, wherein the bead has a diameter which is smaller than a base diameter of the circular base of the depression.

5. The tilting pad bearing as claimed in claim 4, wherein the diameter of the bead is 0.1% to 5% smaller than the base diameter of the circular base of the depression.

6. The tilting pad bearing as claimed in claim 1, wherein the depression is at least two millimeters deep.

7. The tilting pad bearing as claimed in claim 6, wherein the depression is at least five millimeters deep.

8. The tilting pad bearing as claimed in claim 7, wherein the depression is at least ten millimeters deep.

9. The tilting pad bearing as claimed in claim 1, wherein the elevation is formed by a contact component which is arranged in a receiver provided for this purpose in the rear side of the at least one tilting pad.

Description

(1) An exemplary embodiment of the present invention is explained in more detail below with reference to the enclosed drawings. The drawings show:

(2) FIGS. 1a and 1b sectional depictions of a tilting pad bearing according to a first exemplary embodiment of the present invention,

(3) FIGS. 2a and 2b enlarged extracts according to a first exemplary embodiment of the present invention,

(4) FIGS. 3a and 3b enlarged sectional depictions according to a second exemplary embodiment of the present invention, and

(5) FIGS. 4a and 4b enlarged depictions according to a third exemplary embodiment of the present invention.

(6) FIG. 1a shows a cross-section through a tilting pad bearing 1 according to a first exemplary embodiment of the present invention. Four tilting pads 2 can be seen, each of which has a bearing face 4. Opposite this bearing face is a rear side 6 which faces an inner wall 8 of a housing 10.

(7) The inner wall 8 of the housing 10 contains four depressions 12, into each of which a contact component 14 protrudes which is arranged on the rear side 6 of the tilting pad 2. These components are shown in more detail in FIGS. 2a to 4b.

(8) FIG. 1b shows a sectional depiction through the tilting pad bearing 1 parallel to the housing longitudinal axis L. The figure depicts two mutually opposite tilting pads 2 and shows the contact component 14 of the lower tilting pad protruding from the rear side 6 which faces the inner wall 8 of the housing 10.

(9) FIGS. 2a and 2b show enlarged extracts of diagrammatic sectional depictions along the section lines shown in FIGS. 1a and 1b. However, the figures show another exemplary embodiment of the present invention. The housing 10 has an inner wall 8 with a depression 12. The latter contains a compensation component 16 which is arranged in the depression 12 via a mounting 18, which for example may be provided as a possibility for damping or compensating for production tolerances or to set a distance. The surface of this compensation component 16, shown at the top in FIG. 2, forms the base of the depression and hence the second contact face 20.

(10) The tilting pad 2 has a rear side 6, from which a contact component 14 protrudes which consequently forms an elevation 22. In the present exemplary embodiment, the contact component 14 is attached to the tilting pad 2 via two fixing screws 24. The lower surface of the contact component 14 shown in FIG. 2a forms the first contact face 26 which, in contrast to the second contact face 20, is formed with a convex curvature in the exemplary embodiment shown in FIGS. 2a and 2b.

(11) In the lower region in FIG. 2a, the contact component 14, i.e. the elevation 22, has an outwardly protruding bead 28 which is advantageously formed as a spherical ring with a radius which gives a slightly smaller diameter than the depression 12. In the exemplary embodiment shown, both the depression 12 and the elevation 22 are rotationally symmetrical about an elevation longitudinal axis E, which at the same time is also a depression longitudinal axis.

(12) FIG. 2b shows the same embodiment in a sectional depiction which corresponds to the section line shown in FIG. 1b. It is evident that the compensation component 16 is also attached to the housing 10 via two screws 30.

(13) FIGS. 3a and 3b show the same sectional depictions as FIGS. 2a and 2b, but for another exemplary embodiment of the present invention. Here again, the depression 12 in the housing 10 contains the compensation component 16 which, in the present exemplary embodiment, is formed from several pieces. It consists of a beaker-like or dish-like positioning element 32, the side wall 34 of which serves as a lateral support for the contact component 14. The contact component 14 has a bead 28 which bears on the side wall 34 of the positioning element 32. A second component with the second contact face 20 is arranged in the positioning element 32.

(14) FIGS. 4a and 4b show the same sectional depictions for a further exemplary embodiment of the present invention. Again, several components are arranged in the depression 12, wherein in this case the compensation component 16 is formed from several pieces and consists of a base element 36 with the second contact face 20, and the peripheral side wall 34 which could also be designated the edge of the beaker-like or dish-like positioning element 32.

LIST OF REFERENCE SIGNS

(15) 1 Tilting pad bearing 2 Tilting pad 4 Bearing face 6 Rear side 8 Inner wall 10 Housing 12 Depression 14 Contact component 16 Compensation component 18 Mounting 20 Second contact face 22 Elevation 24 Fixing screw 26 First contact face 28 Bead 30 Screw 32 Positioning element 34 Side wall 36 Base element L Housing longitudinal axis E Elevation longitudinal axis