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Bearing parameter optimization method based on hollow cylindrical roller contact deformation and load distribution

A hollow cylinder and contact deformation technology, which is applied in design optimization/simulation, electrical digital data processing, special data processing applications, etc., can solve problems such as large error in bearing load distribution calculation results, inaccurate time bearing parameters, etc.

Active Publication Date: 2020-09-29
DALIAN JIAOTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the prior art, when calculating the load distribution of hollow cylindrical roller bearings, the contact deformation of solid cylindrical rollers is still used to calculate the calculation formula. The influence of hollowness on contact deformation is not considered in the calculation formula, which will lead to bearing load The calculation results of the distribution have large errors, so the bearing parameters optimized by the staff who spend a lot of time and energy are inaccurate

Method used

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  • Bearing parameter optimization method based on hollow cylindrical roller contact deformation and load distribution
  • Bearing parameter optimization method based on hollow cylindrical roller contact deformation and load distribution
  • Bearing parameter optimization method based on hollow cylindrical roller contact deformation and load distribution

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Embodiment

[0039] Bearings are standard parts, and its optimized design is more meaningful only for a certain type of bearing. Therefore, according to the working conditions, the basic parameters of a certain type of bearing used in this embodiment are: inner ring raceway radius R i =27.5mm, outer ring raceway radius R o =37.5mm, the number of rolling elements Z=14, the radius of rolling elements r=5mm, the effective length of rolling elements l=9.6mm.

[0040] According to Harris's bearing theory, the rated dynamic load of the above-mentioned bearing rolling elements can be calculated as The allowable load of the rolling element of the bearing can be determined according to the specific working conditions. In this example, 15% of the rated dynamic load of the rolling element is used to calculate the allowable rolling element load, that is, the allowable rolling element load Q rc0 =Q rc *15% = 1921N.

[0041] figure 1 is the loaded finite element mesh model of the hollow cylindrica...

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Abstract

The invention discloses a bearing parameter optimizing method based on contact deformation amount and load distribution of a hollow cylindrical roller. The bearing parameter optimizing method includes: S1, according to a working condition, primarily calculating design parameters of the size of an inner ring and an outer ring of a hollow cylindrical roller bearing, the number of rolling bodies, hollowness of the rolling bodies and radial internal clearance of the bearing; S2, calculating the load distribution of the hollow cylindrical roller bearing; S3, comparing a calculation result of the load distribution of the hollow cylindrical roller bearing obtained from the S1 and the S2 with an allowable value of load of the rolling bodies, analyzing, and optimizing the bearing parameters inconsistent with regulations. The bearing parameter optimizing method has the advantages that the parameters inconsistent with the regulations can be further optimized by calculating and measuring various parameters of the bearing, and production and design of the bearing can be ensured to meet with national standards.

Description

technical field [0001] The invention relates to the technical field of load distribution of hollow cylindrical roller bearings, in particular to a bearing parameter optimization method based on hollow cylindrical roller contact deformation and load distribution. Background technique [0002] As a new type of bearing, the hollow cylindrical roller bearing has high rotation accuracy, high rigidity, high limit speed and high load capacity because of its simple preload installation process, and the full complement of rollers and hollow rollers can always be preloaded. Capability and other advantages, especially suitable for high-speed heavy-duty occasions. So far, although scholars at home and abroad have done a lot of work in the theoretical research of hollow cylindrical roller bearings and achieved many meaningful results, there are still many areas that need to be improved. At present, in order to optimize and improve various parameters of bearings, we first need to measure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06F30/23G06F119/14
CPCG06F30/17G06F30/23
Inventor 刘彦奎魏延刚关天民何卫东张秀娟
Owner DALIAN JIAOTONG UNIVERSITY