Method and system for acquiring radial clearance of bearing and method and system for adjusting radial clearance of bearing

A radial clearance and acquisition method technology, applied in the field of bearing equipment, can solve the problem of inaccurate radial clearance and achieve the effect of accurate radial clearance

Inactive Publication Date: 2019-12-31
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing measured radial clearance of the bearing under working conditions is not accurate enough

Method used

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  • Method and system for acquiring radial clearance of bearing and method and system for adjusting radial clearance of bearing
  • Method and system for acquiring radial clearance of bearing and method and system for adjusting radial clearance of bearing
  • Method and system for acquiring radial clearance of bearing and method and system for adjusting radial clearance of bearing

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Embodiment Construction

[0072] It can be seen from the background art that the working clearance of the bearing has a great influence on the working life of the bearing.

[0073] Please refer to figure 1 , figure 1 It is a schematic diagram of bearing life changing with radial clearance under working conditions.

[0074] according to figure 1 , under certain working conditions, as the radial clearance changes in the working state of the bearing, the life of the bearing will have a maximum value. The optimal working clearance can be obtained through calculation of the mechanical analysis model of the bearing, or through actual experiments.

[0075] For radial bearings, the radial clearance under working conditions can be obtained by the following formula:

[0076] u r = u 0 +Δu a +Δu T ;

[0077] Among them, u r -- Radial clearance of the bearing in working condition;

[0078] u 0 --The initial design radial clearance u of the bearing 0 ;

[0079] Δu a --The change in radial clearance o...

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Abstract

The embodiment of the invention provides a method for acquiring the radial clearance of a bearing. The method comprises the steps of acquiring the inner ring temperature and the outer ring temperatureof the bearing; and acquiring the radial clearance of the bearing at least according to the inner ring temperature and the outer ring temperature. Therefore, according to the method provided by the embodiment of the invention for obtaining the radial clearance of the bearing, the radial clearance of the bearing is obtained by continuously obtaining the inner ring temperature and the outer ring temperature of the bearing in the working process of the bearing, so that measures can be further taken to adjust the radial clearance of the bearing. According to the invention, the method provided bythe embodiment of the invention for acquiring the radial clearance of the bearing takes the difference of the temperature conditions of an inner ring and an outer ring in the working process and the influence of the difference of the inner ring temperature and the outer ring temperature on the radial clearance of the bearing into full consideration, and it is guaranteed that the obtained radial clearance of the bearing is more accurate.

Description

technical field [0001] The embodiments of the present invention relate to the field of bearing equipment, in particular to a method for obtaining radial clearance of a bearing, a method for adjusting it, and a system. Background technique [0002] The radial clearance of the bearing is a key parameter affecting the normal use of the bearing. Under the same load and speed, the same kind of bearing will have different working life due to the difference in radial clearance in the working state of the bearing. This is because the radial clearance of the bearing will affect the force on the rolling elements inside the bearing and thus affect the life of the bearing. Therefore, in order to prolong the life of the bearing, it is necessary to know the radial clearance of the bearing under working conditions. [0003] The existing measured radial clearance of the bearing under the working condition is not accurate enough. [0004] Therefore, how to improve the accuracy of the radia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/16
CPCG01B21/16
Inventor 黄运生
Owner SCHAEFFLER TECH AG & CO KG
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