Wind turbine gearbox and method for producing a wind turbine gearbox
AssigneeMiba Gleitlager Austria GmbH
InventorsJohannes Sebastian Hoelzl, Werner Schroettenhamer
Life of this patent
Estimating the term…
Abstract
A wind turbine gearbox, in particular planetary gearbox, has at least one gear which is mounted on an axle, wherein a sliding surface is arranged between the gear and the axle. The sliding surface is arranged on at least one layer of a deposition welded material made from a sliding bearing material. Furthermore, a method produces the wind turbine gearbox.
Claims16
A wind turbine gearbox having at least one gear which is mounted on an axle,
- wherein a sliding surface is arranged between the gear and the axle or between the axle and an axle holder,
- wherein the sliding surface is arranged on at least one layer of a deposition welded material made of a sliding bearing material,
- wherein the layer of the deposition welded material is applied directly to an outer shell surface of the axle, and
- wherein an offset is arranged on the axle and the layer of the deposition welded material is applied directly to the end face of the offset.
A wind turbine gearbox 4 having at least one gear which is mounted on an axle,
- wherein a sliding surface is arranged between the gear and the axle or between the axle and an axle holder,
- wherein the sliding surface is arranged on at least one layer of a deposition welded material made of a sliding bearing material,
- wherein the layer of the deposition welded material is applied directly to an inner shell surface of a bore of the gear, and
- wherein the layer of the deposition welded material is applied directly to the end face of the gear.
A wind turbine gearbox having at least one gear which is mounted on an axle,
- wherein a sliding surface is arranged between the gear and the axle or between the axle and an axle holder,
- wherein the sliding surface is arranged on at least one layer of a deposition welded material made of a sliding bearing material,
- wherein a sliding bearing bush is arranged between the gear and the axle, wherein the layer of the deposition welded material is applied directly to the sliding bearing bush.
A wind turbine gear box having at least one gear which is mounted on an axle,
- wherein a sliding surface is arranged between the gear and the axle or between the axle and an axle holder,
- wherein the sliding surface is arranged on at least one layer of a deposition welded material made of a sliding bearing material, and
- wherein the layer of the deposition welded material has a layer thickness of between 0.5 mm and 1.5 mm.
A wind turbine gear box having at least one gear which is mounted on an axle,
- wherein a sliding surface is arranged between the gear and the axle or between the axle and an axle holder,
- wherein the sliding surface is arranged on at least one layer of a deposition welded material made of a sliding bearing material, and
- wherein the sliding surface has, on the layer of the deposition welded material, an averaged roughness depth Rz of between 0.1 μm and 3.2 μm.
A wind turbine gearbox having at least one gear which is mounted on an axle,
- wherein a sliding surface is arranged between the gear and the axle or between the axle and an axle holder,
- wherein the sliding surface is arranged on at least one layer of a deposition welded material made of a sliding bearing material, and
- wherein at least two layers of the deposition welded material, offset to one another at an axial distance, are formed of different materials.
A method for producing a wind turbine gearbox having at least one gear which is mounted on an axle, wherein a sliding surface is arranged between the gear and the axle, wherein the method comprises the following steps:
- providing the gear or the axle or a sliding bearing bushing;
- deposition welding of a sliding bearing material and with that, depositing a layer of a deposition welded material directly onto the gear or the axle or a sliding bearing;
- forming the sliding surface on the layer;
- wherein when deposition welding, the layer is applied having a raw layer thickness of between 1 mm and 5 mm, and
- wherein the layer of the deposition welded material is removed, in a subsequent processing step by machining, to a layer thickness of between 0.5 mm and 1.5 mm.
Dependencies are inferred from the claim text.