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Roller bearing system for aero-engine

An aero-engine and roller bearing technology, which is applied to roller bearings, rotating bearings, rolling contact bearings, etc., can solve problems such as weak structural stability, friction between bearings and inner and outer rings, and wear

Active Publication Date: 2020-12-25
AECC COMML AIRCRAFT ENGINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a roller bearing system for aero-engines in order to overcome the weak structural stability of the aero-engine roller bearings in the prior art, which may easily lead to friction and abrasion between the bearing and the inner and outer rings

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  • Roller bearing system for aero-engine
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  • Roller bearing system for aero-engine

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Embodiment Construction

[0055] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0056] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same numbers will be used throughout the drawings to refer to the same or like parts.

[0057] In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the description of the present invention may be selected by the applicant according to his or her judgment, and the detailed meanings thereof are set forth herein described in the relevant section of the description. ...

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Abstract

The invention provides a roller bearing system for an aero-engine. The roller bearing system comprises a roller bearing system inner ring, a retainer and a roller bearing system outer ring; and the retainer is installed between the roller bearing system inner ring and the roller bearing system outer ring. At least one pair of annular retaining lugs are arranged on the outer circle surface of the retainer at intervals, mounting round holes are formed in the inner circle surface of the roller bearing system outer ring, and a retaining column is mounted in each mounting round hole and is used forpreventing the retainer from moving in an axial direction. The roller bearing system provided by the invention has a retainer deflection and moving prevention device, so that stable work of the retainer can be ensured under the condition of bearing installation errors or some sudden change working conditions.

Description

technical field [0001] The invention relates to the field of aeroengine roller bearings, in particular to a roller bearing system for aeroengines. Background technique [0002] In the prior art, aeroengines are developing in the direction of high thrust-to-weight ratio and high reliability. As a key component of the engine, the working conditions of the roller bearings are becoming more and more harsh. Due to the deflection of the cage, the axial movement of the cage or the slipping of the rolling elements, the roller bearings of the aero-engine will cause the cage and the bearing inner and outer ring raceway walls Collision, wear and other situations often occur, which in turn affects the working state of the roller bearing. Therefore, for the aero-engine roller bearing system, especially the optimal design of the cage will be very important to the running state of the aero-engine. [0003] The aero-engine roller bearing is a key component for the normal operation of the ...

Claims

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Application Information

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IPC IPC(8): F16C19/26F16C19/52F16C33/46F16C33/58F16C33/66
CPCF16C19/26F16C19/522F16C33/467F16C33/581F16C33/6659
Inventor 李佳琪占锐王军沈洁阳
Owner AECC COMML AIRCRAFT ENGINE CO LTD