Surface texture assisted lubrication method of rolling bearing

A rolling bearing and surface texture technology, which is applied in the field of rolling bearing lubrication, can solve problems such as low efficiency of lubrication methods, and achieve the effect of improving lubrication effect and good operation

CN109488694AActive Publication Date: 2019-03-19XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-03-19

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Abstract

The invention relates to a surface texture assisted lubrication method of a rolling bearing. The method comprises the steps of analyzing flow field and potential field distribution on the surface of aroller path under a given operating condition, determining an optimal flow path, selecting an optimal texture type capable of guiding a lubrication medium to flow according to the optimal path as perthe analyzed optimal path, at last, treating a non-contact area on the surface of the roller path according to the selected optimal texture type and the distribution, wherein the texture type includes a poriform texture and a linear texture; and the poriform texture comprises a triangular repetition texture, a quadrilateral repetition texture, a pentagonal repetition texture and a circular repetition texture. According to the method, lubrication is improved by adding the texture on the surface of the roller path; the method has the advantages of effectively guiding the lubrication medium to accumulate in a ball-roller path contact area and form an oil film, and having small influence on the life and strength of the rolling bearing; and the method is a brand-new rolling bearing lubricationmode.
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Description

technical field

[0001] The invention relates to the technical field of rolling bearing lubrication, in particular to a surface texture-assisted lubrication method for rolling bearings. Background technique

[0002] A good lubrication state is one of the key factors to ensure the high-speed and long-lasting operation of rolling bearings. In current industrial applications, when the DN value exceeds 2.00×10 6 , most of the rolling bearings are lubricated by oil and air. The traditional oil-air lubrication technology mainly adopts side-injection oil supply, and achieves the purpose of lubrication and heat dissipation in the bearing cavity through high-pressure and high-speed oil-air injection. Studies have shown that with the continuous increase of the bearing speed (for example, the lower limit of the DN value of the high-speed bearing is increased from 1 million to 2.5 million, mm·rpm), affected by the high-speed revolution of the ball, spin, and gyro motion coupling, the f...

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] In order to illustrate the technical scheme of the present invention more clearly, the present invention will be further described below in conjunction with accompanying drawing:

[0028] Such as figure 1 As shown, the present invention provides a method for lubricating rolling bearings assisted by surface texture, comprising the following steps:

[0029] (1) Analyze the potential field distribution of the flow field on the surface of the raceway under a given working condition, and determine the optimal flow path: combine the multi-field synergy theory to analyze the optimal flow-heat dissipation path in the high-speed bearing cavity under different working conditions. The field synergy theory considers the internal potential field and the flow resistance comprehensively. A new set of governing equations is proposed, and the flow field satisfying the cooper...