Multilayer rolling bearing

A technology of rolling bearings and rolling elements, which is applied in the field of rolling bearings, and can solve problems such as loss of normal working ability, pits, and peeling off of surface metal sheets, so as to reduce the number of stress cycles, improve safety, and reduce the number of rolling times.

Inactive Publication Date: 2015-02-11
WUHAN BAONIXI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For rolling bearings that are generally used for a long time, under load, there is a huge cyclic contact stress between the surfaces of the rolling elements and the inner and outer rings, so that fatigue pitting occurs on the

Method used

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  • Multilayer rolling bearing
  • Multilayer rolling bearing
  • Multilayer rolling bearing

Examples

Experimental program
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Embodiment Construction

[0012] The multilayer rolling bearing of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0013] The present invention provides a multilayer rolling bearing, which includes an inner ring 10 , at least one intermediate ring 20 , an outer ring 30 and at least two rolling layers 40 . The structure of multiple rolling layers 40 can effectively reduce the rolling times of the rolling body 50 on the inner and outer rings during the rolling process, reduce the number of stress cycles, and thus increase the service life of the bearing.

[0014] The rolling layer 40 includes an inner rolling layer 41 and an outer rolling layer 42 ; the inner rolling layer 41 is located between the inner ring 10 and the middle ring 20 , and the outer rolling layer 42 is located between the middle ring 20 and the outer ring 30 .

[0015] Each rolling layer 40 includes rolling bodies 50 and cages 60 ; wherein the cages 60 are...

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PUM

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Abstract

The invention relates to a multilayer rolling bearing, which comprises an inner ring, at least one middle ring, an outer ring and at least two rolling layers, wherein the rolling layers comprises an inner rolling layer and an outer rolling layer, each rolling layer comprises a rolling body and a retainer, each retainer is used for containing rolling bodies so that the positions between the rolling bodies are relatively fixed, two rolling bodies positioned in the inner rolling layer form a row in a side-by-side way, a plurality of rows of rolling bodies are distributed in each retainer, and the axial lines of the side-by-side rolling bodies are parallel to the axial line of the inner rolling layer. The multilayer rolling bearing has the advantages that the number of stress cycle times and the number of rolling times of the rolling bodies in the rolling process are reduced, so the service life is prolonged, and the bearing safety is improved.

Description

technical field [0001] The invention relates to a rolling bearing, in particular to a multilayer rolling bearing. Background technique [0002] During the use of rolling bearings, due to many reasons, when the performance indicators fail to meet the requirements of use, failure or damage occurs. Common failure forms include fatigue spalling, wear, plastic deformation, corrosion, burns, electrical corrosion, and cage damage. [0003] There are many types of fatigue, and for rolling bearings it mainly refers to contact fatigue. Under the repeated action of contact stress on the surface of each rolling element of a rolling bearing ring, the phenomenon that the metal on the rolling surface peels off from the metal matrix in the form of points or flakes is called fatigue spalling. Pitting corrosion is also a fatigue phenomenon caused by material fatigue, but the shape and size are small, and fatigue spalling will form after pitting corrosion expands. For rolling bearings that ...

Claims

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Application Information

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IPC IPC(8): F16C19/50F16C19/49
Inventor 付娟
Owner WUHAN BAONIXI TECH
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