A method for lubricating rolling bearings assisted by surface texture

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.

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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Problems solved by technology

[0004] In order to overcome the above-mentioned defects in the prior art, the object of the present invention is to provide a surface texture-assisted lubrication method for rolling bearings, which adds texture-assisted lubrication to the surface of the bearing raceway to solve the problem of the efficiency of traditional lubrication methods for rolling bearings under high-speed conditions. low problem

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