Bearing for a wind turbine drivetrain having an elastomer support

Patent metadata

Field	Value
Publication number	US-11174895-B2
Application number	US-201916399022-A
Country	US
Kind code	B2
Filing date	Apr 30, 2019
Priority date	Apr 30, 2019
Publication date	Nov 16, 2021
Grant date	Nov 16, 2021

Abstract

A bearing assembly for a drivetrain of a wind turbine includes at least one shaft having a circumferential outer surface and a bearing secured circumferentially around the circumferential outer surface of the shaft(s). Further, the bearing assembly includes an elastomer support arranged on at least one of an inner surface or an outer surface of the bearing. The elastomer support is constructed, at least in part, of an elastomeric material.

First claim

What is claimed is:

1. A drivetrain assembly, comprising:
a low-speed shaft;
a gearbox comprising a gearbox housing and a gear assembly configured within the gearbox housing, the gear assembly comprising a plurality of gears each rotatably mounted to a respective pin shaft;
a generator rotatably coupled to the gearbox via a high-speed shaft,
one or more bearings arranged with a circumferential outer surface of at least one of the low-speed shaft, the high-speed shaft, or one or more of the pin shafts, the one or more bearings comprising an elastomer support arranged on an inner surface thereof; and
the elastomer support formed of an elastomeric material and a separate reinforcement material embedded therein.

2. The drivetrain assembly of claim 1 , wherein the at least one reinforcement material comprises at least one of a fiber material or a metal mesh, the fiber material comprising at least one of glass fibers, carbon fibers, metal fibers, polymer fibers, ceramic fibers, nanofibers, or combinations thereof.

3. The drivetrain assembly of claim 1 , wherein the reinforcement material comprises one or more strands of material embedded in the elastomeric material and arranged at an angle with respect to the inner surface of the bearing.

4. The drivetrain assembly of claim 3 , wherein the angle ranges from about 0 degrees to about 90 degrees with respect to the inner surface of the bearing.

5. The drivetrain assembly of claim 3 , wherein one or more strands of the at least one reinforcement material are arranged away from a centerline of the bearing.

6. The drivetrain assembly of claim 1 , wherein the elastomer support comprises one or more voids or one or more through holes.

7. The drivetrain assembly of claim 1 , wherein the elastomeric material comprises one of rubber or silicon.

8. The drivetrain assembly of claim 1 , wherein the elastomer support is secured to the inner surface of the bearing and comprises a generally arcuate shape.

9. The drivetrain assembly of claim 1 , wherein the elastomer support is secured to the inner surface of the bearing and comprises a generally arcuate shape.

Assignees

• Gen Electric

Inventors

• Krauss Thomas

Classifications

• F03D15/00

  Transmission of mechanical power · CPC title

• F05B2260/40311

  of the epicyclic, planetary or differential type · CPC title

• F16H37/041

  for conveying rotary motion with constant gear ratio · CPC title

• F03D80/70

  Bearing or lubricating arrangements · CPC title

• F05B2280/401

  Silicon polymers · CPC title