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Bearing bushing structure

A bearing bushing and bushing technology, which is applied in the direction of bearing components, shafts and bearings, mechanical equipment, etc., can solve the problems of reduction or even disappearance of interference, loss of centering function of bushing, movement of bushing and shell, etc. , to achieve a wide range of temperature changes, light weight, and reduce the weight of the structure

Inactive Publication Date: 2015-02-04
HARBIN DONGAN ENGINE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The bushing of this structure is usually made of steel with a small wear-resistant single linear expansion coefficient, and the shell is made of aluminum-magnesium alloy with a large linear expansion coefficient. When the working temperature rises, the excessive gap between the bushing and the shell The surplus will be reduced or even disappear, which will lead to the loss of the centering function of the bushing, and even the movement of the bushing and the housing and wear

Method used

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Embodiment Construction

[0011] As shown in the figure, a bearing bushing structure includes a bearing bushing sleeve 1 and the bearing bushing sleeve 1 is provided with a groove 1d that runs through both ends of the bushing sleeve 1. The groove 1d has a bearing bushing in a free state. Large clearance, and when the bearing bush is installed, the bearing bush produces radial elastic deformation. The two ends of the bushing sleeve 1 are provided with flanges 1a, 1b, and the flanges 1a, 1b are located at the two ends of the bushing sleeve 1 and extend to the inner side and the outer side of the bushing sleeve 1 respectively. .

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Abstract

The invention relates to a bearing bushing structure, which comprises a bearing bushing cylinder 1 and a groove 1d arranged in the bearing bushing cylinder 1 and passing through two ends of the bearing bushing cylinder 1. The groove 1d has a large gap when the bearing bushing is in a free state. After the bearing bushing is mounted, radial elastic deformation is generated for the bearing bushing. As radial elastic deformation of the bearing bushing is adopted to serve as a compensation mode, radial interference quantity changes caused as different materials and working temperature changes can be automatically compensated, the applied force between the bearing bushing and the bearing is more stable, the use temperature has a wide change range, and as no particular large interference assembly stress is needed, the overall structural weight is reduced.

Description

technical field [0001] The invention relates to a bearing bushing structure, which can automatically compensate the gap between the bearing and the mounting seat due to thermal expansion and other reasons. Background technique [0002] Bearing bushes, especially rolling bearing bushes, are widely used in different fields, for example in aeronautical engineering. Specifically, bearing bushes are used in gearboxes, gas turbines, drive shafts, final reducers, and accessory drive systems. Another important field of application is structures such as automotive gearboxes and engines. [0003] The existing bearing bush structure is mainly divided into two types, one structure such as figure 1 As shown, the bearing bushing is a sleeve with a mounting flange, the outer cylindrical surface of the sleeve fits with the mounting hole of the shell, the inner cylindrical surface of the sleeve fits with the outer ring of the bearing, and the bushing is fixed by bolts and nuts on the shel...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/30
Inventor 胡双雪陈航石晓春李超苍学伟李彧
Owner HARBIN DONGAN ENGINE GRP
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