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Two-row roller bearing and bearing system with such a roller bearing and a lubricating device

A rolling bearing and lubricating device technology, applied to rolling contact bearings, rotating bearings, bearings, etc., to achieve the effect of reliable lubrication

Active Publication Date: 2010-09-29
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be the case, for example, that it is difficult to guarantee optimum lubrication performance in large bearings, although there are no lubrication problems in smaller bearings of the same type

Method used

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  • Two-row roller bearing and bearing system with such a roller bearing and a lubricating device
  • Two-row roller bearing and bearing system with such a roller bearing and a lubricating device
  • Two-row roller bearing and bearing system with such a roller bearing and a lubricating device

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Embodiment Construction

[0027] figure 1 An embodiment of a bearing system designed according to the invention is shown in a sectional view. exist figure 2 with 3 shown in figure 1 A partially enlarged cutaway view of . The illustrated embodiment of the bearing system has an X-shaped tapered roller bearing 1 designed with double row rollers. The tapered roller bearing 1 is used, for example, to rotatably mount a rotor shaft 2 of a wind power plant relative to a bearing housing 3 about an axis of rotation indicated by dotted lines.

[0028] The tapered roller bearing 1 has a fixed outer ring 4 which is arranged in a housing bore of the bearing housing 3 and has two tapered raceways. The outer ring has an outer diameter of at least one meter. Furthermore, the tapered roller bearing 1 has two rotating inner rings 5 ​​and 6 which are arranged axially adjacent to each other on the rotor shaft 2 and each have a conical raceway. In the embodiment shown, the outer ring 4 and the two inner rings 5 ​​, ...

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Abstract

The invention relates to a two-row roller bearing (1) for supporting a mechanical part (2) rotatably relatively to a rotation axis. According to the invention, the roller bearing (1) has an outer ring (4) with the outer diameter of at least 1 m, a first inner ring (5), a second inner ring (6) arranged at the side of the first inner ring (5) axially relatively to the rotation axis, a group of first rolling bodies (7) rolling between the outer ring (4) and the first inner ring (5), a group of second rolling bodies (8) arranged at the side of the first rolling bodies (7) along the axial direction relatively to the rotation axis and rolling between the outer ring (4) and the second inner ring (6). The roller bearing (1) is characterized in that a first lubricating grease conveyor (21) is arranged at the first axial side of the outer ring (4) with respect to the rotation axis for supplying the first roller body with lubricating grease (22) and a second lubricating grease conveyor (27) is arranged at the second axial side of the outer ring (4) with respect to the rotation axis for supplying the second roller body with lubricating grease (22).

Description

technical field [0001] The invention relates to a grease-lubricated double row rolling bearing, which is designed in particular as a large bearing for supporting a rotor shaft of a wind power plant. Furthermore, the invention relates to a bearing system with such a rolling bearing and a lubrication device and to a wind power plant with such a bearing system. Background technique [0002] Bearings with an outer ring having a diameter of at least one meter are referred to below as large bearings. Other criteria, especially other diameter values, can also be used to define large bearings. It is however important that large bearings are significantly larger than bearings in everyday applications, for example than bearings used in automobiles with an outer diameter of a few centimeters. If not stated otherwise, the concepts used below, such as axial, radial, etc., are all relative to the axis of the rotating shaft of the bearing. [0003] In the design of large bearings, it is...

Claims

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Application Information

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IPC IPC(8): F16C19/00F16C33/66F03D11/00
CPCF16C19/386F16C2300/14F16C2360/31Y02E10/722F16C33/6622F03D11/0008F03D80/70F16C33/7813F16C33/7886Y02E10/72
Inventor 马赛厄斯·霍夫曼
Owner AB SKF
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