Premature-resisting conical roller bearing

A tapered roller bearing and roller technology, which is applied in the direction of roller bearings, bearing components, shafts and bearings, can solve the problems of short life, premature bearing aging, and rapid wear of rolling elements, so as to reduce friction torque and prolong service life. , the effect of reducing wear

Inactive Publication Date: 2011-05-11
LINYI KAIYUAN BEARING
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of fast rolling body wear, short life and premature aging quality of the current tapered roller bearing due to design and manufacturing reasons, and to provide an anti-aging tapered roller bearing. By enlarging the inner raceway, Outer race

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  • Premature-resisting conical roller bearing

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Embodiment Construction

[0009] The anti-premature tapered roller bearing includes inner ring, outer ring, roller and cage. According to the anti-premature design concept, refer to the design scheme of foreign well-known enterprises, and combine the company's actual situation, optimize the rib design and improve its axial bearing capacity; Optimal design of the shape of the oil groove and rolling surface, the roller generatrix adopts an arc curve, the large rib of the inner ring is an arc surface, the shape of the inner raceway and the linearity of the logarithmic correction line of 1.5μm, the shape of the outer raceway and Hyperbola with linearity of 1.5 μm, roller rolling surface shape and arc curve with linearity of 2 μm, inner radial runout of 10, outer radial runout of 11; inner ring width deviation of 20, outer ring width deviation of 50; optimize the manufacturing process and improve its comprehensive load performance; fully consider the elastic deformation, improve the conformity of the raceway...

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Abstract

The invention discloses a premature-resisting conical roller bearing which comprises an inner ring, an outer ring, a roller and a retainer, wherein the shape of the large capped edge of the inner ring is cambered surface; the shape and rectilinearity of an inner roller path are shown by a 1-2mu m logarithm modified line; the shape and rectilinearity of an outer roller path are shown by a 1-2mu m hyperbolic curve; the shape and rectilinearity of the rolling surface of the roller are shown by a 0-3mu m cambered curve; and the inner diameter run-out is 10, and the outer diameter run-out is 11. Because cambered curve design is adopted for a bus of the roller, the convexities of the inner ring roller path, the outer ring roller path and the roller as well as the shape designs of a roller base line and an oil gallery are improved, the roller path and the roller convexity are configured reasonably, and the diameter of the capped edge is increased, thus the force application point of the bearing in a static state is a convexity peak; and when in high speed load running, because of the combined action of the 'convexity effect' and the 'edge-corner effect', the bearing is stressed uniformly, and the bearing friction moment is reduced effectively, thereby reducing the abrasion of edges and corners, prolonging the service life of the bearing, and avoiding the phenomenon of bearing premature senility.

Description

technical field [0001] The invention relates to a tapered roller bearing, in particular to an optimally designed anti-premature tapered roller bearing. Background technique [0002] For a long time, domestic automobile bearings have had the problem of premature aging of domestic bearings. That is: domestic bearings need to adjust the axial clearance after traveling a short distance, while well-known foreign brands need to adjust the axial clearance after traveling a long distance. At present, the roller straight generatrix bearings produced by domestic manufacturers are the most common varieties. Although this type of bearing has a large load, it is easy to process, and it is easy to produce a "corner effect" during high-speed load operation, causing the diameter of both ends of the roller to appear. Wear and tear, leading to premature aging of the bearing, greatly reducing the service life. In order to find out the reason for the wear of the diameter parts at both ends of...

Claims

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Application Information

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IPC IPC(8): F16C19/22F16C33/34F16C33/58
Inventor 孙国廷孙豹薛克同王加荣郑碧波彭文华
Owner LINYI KAIYUAN BEARING
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