Title:
The mechanism for attaching the parts which an energy system can reverse rotate
Document Type and Number:
Japanese Patent JP6214564
Kind Code:
B2
Abstract:
The invention relates to a rolling bearing arrangement (1, 26, 31, 34, 36, 37), preferably a large rolling bearing with a diameter of 0.5 or more, for mounting parts of an energy system, in particular as blade bearings for a wind turbine, comprising at least two relatively rotatable annular elements (2, 3) arranged concentrically with one another and at least regionally inside one another, for connection to relatively rotatable parts of the energy system, wherein two relatively rotatable connecting elements (2, 3) are separated from each other by a gap (4) and at least partially overlap each other in the radial direction, wherein, further, provided in the region of the gap (4) in radially overlapping regions of the annular connecting elements (2, 3) are at least two rows of rolling elements (17, 18), each of which rolls along a respective two raceways (19, 20) that overlap each other at least regionally in the radial direction, wherein one or more raceways (19, 20) for rolling elements (17, 18) are disposed in radially overlapping sections (5, 6) in such fashion that the contact angle which the connecting line between the centers of the points of contact of a rolling element (17, 18) with its two raceways makes with the ring plane is equal to or greater than 45°, such that such an axial rolling bearing serves to transmit predominantly axially acting force components, and wherein at least one additional bearing is provided for transmitting predominantly radially acting force components and has a contact angle of less than 45°, preferably 25° or less, particularly 10° or less, wherein any raceways for radial rolling bearings that are incorporated directly into the annular connecting elements (2, 3) are, at most, ones having a maximum distance between them, perpendicular to the raceway surface, that is equal to or less than 25% of the largest distance perpendicular to the raceway surface between two raceways of an axial rolling-bearing row.
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Inventors:
Ruth Erich
Frank ubertus
Dietz Volker
Frank ubertus
Dietz Volker
Application Number:
JP2014555327A
Publication Date:
October 18, 2017
Filing Date:
February 07, 2013
Export Citation:
Assignee:
IM Holding GM BH
International Classes:
F03D80/70; F16C19/10; F16C17/02; F16C17/24; F16C19/50; F16C25/04; F16C25/08; F16C33/20; F16C33/58; F16C33/61; F16C33/64
Domestic Patent References:
| JP2010508471A | ||||
| JP51149445A | ||||
| JP9317762A | ||||
| JP57079323A | ||||
| JP2009074645A | ||||
| JP2012007709A |
Foreign References:
| EP1239171A2 | ||||
| EP1741940A1 | ||||
| US20110115233 |
Attorney, Agent or Firm:
Yata Ryuichi
Takeshi Sugimoto
Takeshi Sugimoto
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