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A method and structure for solving bearing uncentering caused by thermal working clearance

A technology of working clearance and fixed structure, applied in the direction of belt/chain/gear, transmission parts, mechanical equipment, etc., can solve problems such as bearing misalignment, and achieve the effect of ensuring meshing accuracy, improving performance and reducing maintenance costs.

Active Publication Date: 2019-06-28
AECC SHENYANG ENGINE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method and structure for solving bearing misalignment caused by thermal working gap, which is used to solve the bearing misalignment problem caused by temperature difference or high speed

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  • A method and structure for solving bearing uncentering caused by thermal working clearance
  • A method and structure for solving bearing uncentering caused by thermal working clearance
  • A method and structure for solving bearing uncentering caused by thermal working clearance

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Embodiment Construction

[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail b...

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Abstract

The invention relates to a method for solving the bearing non-centering problem caused by a thermal-state working clearance. The method comprises the steps that S1, the value of the thermal-state working clearance generated by the bearing in a using working condition is calculated; S2, a fastening measure is selected according to the value of the thermal-state working clearance and using working condition restraints; S3, the friction moment generated by a fixing structure is calculated according to the selected fastening measure; and S4, if the friction moment is smaller than the radial load borne by a bearing, relevant parameters of the fixing structure are adjusted, and it is ensured that the friction moment is larger than or equal to the radial load. By the adoption of the method for solving the bearing non-centering problem caused by the thermal-state working clearance, the bearing non-centering problem caused by the thermal-state working clearance can be effectively solved, the gear engagement precision is guaranteed, fretting friction among the matching surfaces of the bearing, gears and a shell is avoided, the usability of the bearing is improved, the service life of the bearing is prolonged, and the maintenance cost is reduced.

Description

technical field [0001] The invention belongs to the field of mechanical design, and in particular relates to a method capable of solving bearing misalignment caused by thermal working gaps. Background technique [0002] In various types of aero engine and gas turbine applications, the gear transmission system is the most important power transmission equipment. Bearings in the gear transmission system, as key parts in rotating machinery, affect the dynamic performance, transmission accuracy and service life of the gear transmission system, and are related to the performance of the entire gear transmission system. [0003] Usually, in the gear transmission system, the bearing outer ring 4' is tightly fitted with the housing 2' (or bearing seat) to provide support for rotating parts such as the gear shaft 1'; the bearing inner ring 3' is tightly fitted to the gear shaft 1' The form of cooperation realizes the smooth transmission of the gear shaft 1', such as figure 1 shown. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/023F16H57/12
CPCF16H57/023F16H57/12F16H2057/126
Inventor 邢彬侯明曦李国权毛宏图孔祥锋郑凯李芳乔恒稳
Owner AECC SHENYANG ENGINE RES INST
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