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Load calculation method for paired tapered roller bearings

A tapered roller bearing, load calculation technology, applied in the direction of measuring devices, instruments, measuring force, etc., can solve the problem of inaccurate precision, achieve the effect of optimizing the mechanical system, prolonging the life of the bearing, and accurate results

Inactive Publication Date: 2013-01-02
XI AN JIAOTONG UNIV
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AI Technical Summary

Problems solved by technology

[0004] Aiming at the inaccurate defect of the traditional method, the present invention establishes an iterative solution method combining the initial value of the axial derived force and the bearing analysis model of the rolling bearing roller, and provides the axial force and load distribution of the bearing

Method used

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  • Load calculation method for paired tapered roller bearings
  • Load calculation method for paired tapered roller bearings
  • Load calculation method for paired tapered roller bearings

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Embodiment Construction

[0020] Such as figure 1 As shown, tapered roller bearings will generate derived axial forces when bearing radial loads, and the influence of axial derived forces must be considered in the analysis. Bearings I and II bear radial load F respectively rI , F rII , and bear the axial load F a . The traditional calculation method of the axial derived force under the action of radial force is: respectively set the derived axial force of the two bearings as S 1 , S 2 , the axial load borne by bearings I and II can be obtained by the following formula:

[0021] f a +S 2 ≥S 1 when F aI =F a +S 2 , F aII =S 2

[0022] f a +S 2 1 when F aI =S 1 , F aII =S 1 -F a

[0023] On the premise that the axial force and radial force on the bearing are known, the load distribution of the bearing can be obtained by the following methods:

[0024] via calculations And look up the table to get ε and J r (ε) value, where α is the contact angle of the bearing outer ring, F r is...

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Abstract

The invention discloses a load calculation method for paired tapered roller bearings. The load calculation method for paired tapered roller bearings is characterized in that iterative solution method combining initial axial derived force valve and bearing analytic model of the tapered roller bearings is established, and axial force and load distribution of the bearings are provided. The problem that the traditional method is low in precision can be solved. When bearing preload or axial force, back-to-back bearing systems generate different additional axial forces with different bearing loads, and magnitude of the additional axial forces cannot be calculated by a single coefficient.

Description

technical field [0001] The invention relates to a method for calculating the load of tapered roller bearings installed in pairs. Background technique [0002] The traditional method for calculating the additional axial force generated by paired bearings under the action of radial force is: obtain the bearing coefficient Y of a specific model by querying the mechanical design manual, and obtain it through the formula. This method considers that the additional axial force generated by a specific type of bearing under constant radial load is constant, regardless of the influence of axial load. In fact, the magnitude of the additional axial force of the bearing is directly related to the bearing load. For bearings installed back-to-back, when the system is subjected to pretightening force or axial force, the additional axial force generated varies with the bearing load conditions, and the additional axial force cannot be measured simply by a coefficient. [0003] Therefore, it...

Claims

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Application Information

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IPC IPC(8): G01L1/00
Inventor 陈渭李文岩武通海
Owner XI AN JIAOTONG UNIV
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