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Axial-radial rolling contact bearing, in particular for supporting rotor blades on a wind turbine

A technology for wind turbines and rolling bearings, applied in wind turbine components, wind turbines, wind turbines and other directions consistent with the wind direction, can solve problems such as large continuous loads, and achieve the effect of improving bearing capacity and service life

Inactive Publication Date: 2014-01-08
THYSSENKRUPP ROTHE ERDE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the known wind generators, the positioning angle of the blades is usually only adjusted when the wind speed changes greatly, but now it is trying to adjust the positioning angle of the rotor blades more frequently than before, especially synchronously with the rotor speed, so as to Blade adjustment bearings cause much greater continuous loads in comparison

Method used

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  • Axial-radial rolling contact bearing, in particular for supporting rotor blades on a wind turbine
  • Axial-radial rolling contact bearing, in particular for supporting rotor blades on a wind turbine
  • Axial-radial rolling contact bearing, in particular for supporting rotor blades on a wind turbine

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Embodiment Construction

[0020] figure 1 An axial-radial rolling bearing, with which a rotor blade 2 is rotatably fastened to a rotor 3 on a wind turbine 1 , is shown in the mounted state. For the sake of clarity, the adjustment mechanism, ie the adjustment mechanism for making the rotor blade 2 rotatable about its rotor blade longitudinal axis, is not shown.

[0021] exist figure 2The axial-radial rolling bearing shown in a partial detail is designed as a five-row bearing with one radial rolling bearing row 4 and four axial rolling bearing rows 5a, 5b, 5c, 5d. The radial rolling bearing row 4 and the axial rolling bearing row 5a, 5b, 5c, 5d all use their rolling elements designed as rollers 6, 6' to be placed on the first bearing ring 7 as the outer ring and the first bearing ring 7 as the inner ring. Between the two bearing rings 8. The first bearing ring 7 is divided into two parts between the second axial rolling bearing row 5b and the third axial rolling bearing row 5c, the separation of the ...

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Abstract

The invention relates to an axial-radial rolling contact bearing, in particular for supporting rotor blades (2) on a wind turbine (1), comprising a first bearing ring (7) and a second bearing ring (8), which form an inner ring and an outer ring, and comprising a radial rolling contact bearing row (4) and a plurality of axial rolling contact bearing rows between the first bearing ring (7) and the second bearing ring (8). According to the invention, at least four axial rolling contact bearing rows (5a, 5b, 5c, 5d) which are arranged at a distance from each other in the axial direction (x) are provided, said radial rolling contact bearing row (4) being arranged between the second axial rolling contact bearing row (5b) and the third axial rolling contact bearing row (5c) in the axial direction (x).

Description

technical field [0001] The invention relates to an axial-radial rolling bearing, especially for supporting a rotor blade on a wind generator, comprising: a first bearing ring and a second bearing ring, the first bearing ring and the second bearing ring form a an inner ring and an outer ring; and a radial rolling bearing row and a plurality of axial rolling bearing rows between the first bearing ring and the second bearing ring. Background technique [0002] Known wind power generators all have a tower according to their conventional structure, and a generator in a generator casing is arranged on the upper end of the tower. The generator is connected directly or via a transmission to a rotor, which typically carries three rotor blades. In order to adapt the position of the rotor blades to different wind speeds, the blades can be rotatably connected to the rotor about a rotor blade longitudinal axis. For this purpose, an axial-radial large rolling bearing is used, which in p...

Claims

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Application Information

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IPC IPC(8): F16C19/54
CPCF03D1/0658F16C2300/14F16C2360/31F16C19/381Y02E10/722F03D11/0008Y02E10/721F16C33/60F03D80/70Y02E10/72
Inventor T·汉德莱克
Owner THYSSENKRUPP ROTHE ERDE
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