Plain bearing arrangement

Patent metadata

Field	Value
Publication number	US-11486446-B2
Application number	US-202017434889-A
Country	US
Kind code	B2
Filing date	Mar 4, 2020
Priority date	Mar 7, 2019
Publication date	Nov 1, 2022
Grant date	Nov 1, 2022

Abstract

A sliding bearing includes:—an inner ring element;—an outer ring element;—at least one sliding bearing element, which is arranged between the inner ring element and the outer ring element. The sliding bearing element has multiple sliding bearing pads, wherein the individual sliding bearing pads each have a radial bearing surface and a fastening profile located opposite the radial bearing surface. The inner ring element has at least one receiving profile on its radial outside, which receiving profile serves for the positive locking connection between the sliding bearing pads and the inner ring element.

First claim

The invention claimed is:

1. A sliding bearing comprising:
an inner ring element;
an outer ring element;
at least one sliding bearing element, which is arranged between the inner ring element and the outer ring element,
wherein the sliding bearing element has multiple sliding bearing pads,
wherein the individual sliding bearing pads each have a radial bearing surface and a fastening profile located opposite the radial bearing surface,
wherein the inner ring element has at least a receiving profile on its radial outside to form a positive locking connection between the sliding bearing pads and the inner ring element,
wherein the fastening profile of the sliding bearing pad and the receiving profile of the inner ring element are formed such that the sliding bearing pad can be inserted into the inner ring element in an axial direction or in a diagonal direction,
wherein an axial stop for the sliding bearing pad is formed on the inner ring element in the region of the receiving profile,
wherein a releasable axial clamping element for the sliding bearing pad is formed on the inner ring element in the region of the receiving profile, and
wherein a first end face of the sliding bearing pad can be placed on the axial stop in the axial direction, and the axial clamping element can act upon a second end face of the sliding bearing pad, and
wherein each of the sliding bearing pads is assigned at least one of the axial clamping elements.

2. The sliding bearing according to claim 1 , wherein the fastening profile and the receiving profile are formed as a dovetail connection.

3. The sliding bearing according to claim 1 , wherein a clamping device for clamping the sliding bearing pad is arranged between the fastening profile of the sliding bearing pad and the receiving profile of the inner ring element.

4. The sliding bearing according to claim 3 ,
wherein the clamping device comprises at least a first clamping wedge, which has a wedge surface, which cooperates with a first counter wedge surface formed in the receiving profile and tapering in the axial direction, and
wherein the first clamping wedge can be displaced in the axial direction by means of a first positioning means.

5. The sliding bearing according to claim 4 ,
wherein the clamping device comprises a second clamping wedge, which has a wedge surface, which cooperates with a second counter wedge surface formed in the receiving profile and tapering in the axial direction,
wherein the first counter wedge surface and the second counter wedge surface are formed to taper in opposite directions,
wherein the second clamping wedge can be displaced in the axial direction by means of a second positioning means.

6. The sliding bearing according to claim 5 , wherein the first positioning means and the second positioning means are formed on a common positioning rod, wherein the first positioning means has a right-handed thread and the second positioning means has a left-handed thread.

7. The sliding bearing according to claim 1 , wherein at least a first axial bearing surface is formed on the sliding bearing pad, which first axial bearing surface is arranged at a first angle of 90° relative to the radial bearing surface when viewed in a longitudinal section.

8. The sliding bearing according to claim 1 , wherein the inner ring element has multiple tilting segments, which are arranged so as to be distributed across the circumference, wherein the individual tilting segments are arranged so as to be spaced apart from one another in the circumferential direction and can be tilted independently of one another, wherein at least one of the receiving profiles is formed for each tilting segment.

9. The sliding bearing according to claim 8 , wherein the individual tilting segments have a first recess ( 46 ) at least on a first front side observed in the axial direction.

10. A nacelle for a wind turbine, the nacelle comprising:
a nacelle housing;
a rotor hub;
a rotor bearing for bearing the rotor hub on the nacelle housing, wherein the rotor bearing comprises the sliding bearing according to claim 1 .

11. A wind turbine having a nacelle, the nacelle comprising:
a nacelle housing;
a rotor hub with rotor blades arranged thereon;
a rotor bearing for bearing the rotor hub on the nacelle housing, wherein the rotor bearing comprises the sliding bearing according to claim 1 .

12. A method for replacing sliding bearing pads in the sliding bearing according to claim 1 , comprising the method steps:
removing one of the sliding bearing pads by pulling the fastening profile of the one sliding bearing pad axially out of the receiving profile of the inner ring element;
inserting a new sliding bearing pad by pushing a fastening profile of the new sliding bearing pad axially into the receiving profile of the inner ring element.

13. A method for producing an inner the sliding bearing according to claim 1 , comprising the method steps:
pre-forging an inner ring blank for a rough shaping of a blank contour;
normalizing the inner ring blank;
producing the receiving profile by processing the inner ring blank by means of machining.

14. A sliding bearing comprising:
an inner ring element;
an outer ring element;
at least one sliding bearing element, which is arranged between the inner ring element and the outer ring element,
wherein the sliding bearing element has multiple sliding bearing pads,
wherein the individual sliding bearing pads each have a radial bearing surface and a fastening profile located opposite the radial bearing surface,
wherein the inner ring element has at least a receiving profile on its radial outside to form a positive locking connection between the sliding bearing pads and the inner ring element, and
wherein a clamping device for clamping the sliding bearing pad is arranged between the fastening profile of the sliding bearing pad and the receiving profile of the inner ring element.

15. A sliding bearing comprising:
an inner ring element;
an outer ring element;
at least one sliding bearing element, which is arranged between the inner ring element and the outer ring element,
wherein the sliding bearing element has multiple sliding bearing pads,
wherein the individual sliding bearing pads each have a radial bearing surface and a fastening profile located opposite the radial bearing surface,
wherein the inner ring element has at least a receiving profile on its radial outside to form a positive locking connection between the sliding bearing pads and the inner ring element,
wherein the outer ring element is designed to be sleeve-shaped,
wherein a first end wall protruding radially inwards is formed on a first front side, and
wherein a first axial bearing surface of the sliding bearing pad abuts on the first end wall.

Assignees

• Miba Gleitlager Austria Gmbh

Inventors

• Hoelzl Johannes
• Herbst Klaus
• Ciklamini Marek
• Waldl Albert
• Holzinger Martin

Classifications

• F16C17/035

  the segments being integrally formed with, or rigidly fixed to, a support-element · CPC title

• F16C17/10

  for both radial and axial load · CPC title

• F16C2360/31

  Wind motors · CPC title

• F16C17/03 Primary

  with tiltably-supported segments, e.g. Michell bearings {(hydrostatic bearings with tiltably supported bearing pads F16C32/0666; made from a plurality of rods F16C33/26; with flexible leaves F16C17/024; hydrodynamic bearings with chambers F16C33/1075)} · CPC title

• F16C33/26

  made from wire coils; made from a number of discs, rings, rods, or other members · CPC title