Retainer locking opening structure for cylindrical roller bearing metal entity

Abstract

The invention provides a retainer locking opening structure for a cylindrical roller bearing metal entity. A plurality of openings are uniformly distributed in a metal retainer of a cylindrical roller bearing in a circumference direction, a spherical concave gravure is embossed on an opening beam between each two openings, and the diameter of each spherical concave gravure is the same and is smaller than the width of each opening beam; corresponding bosses are arranged on two opposite sides of the interior of each opening, and the distance between every two bosses is 0.8-0.93 times of the aperture of each opening. According to the spherical concave gravure structure, the situations of stress micro-cracks and non-uniformity of metal accumulation are effectively avoided so as to greatly ensure the dynamic balance of the retainer and largely prolong the service of the retainer; the whole structure is simple, and all structures can be easily produced, so that the negative effects on the dynamic balance and the service life of the holder caused by large machining difficulty, difficulty in precision guarantee and the like are avoided.

Description

technical field [0001] The invention relates to a locking structure of a metal solid cage of a cylindrical roller bearing, in particular to a locking structure for ensuring that the inner diameter or outer diameter of the cage does not fall off after assembly, and belongs to the field of mechanical processing. Background technique [0002] For cylindrical roller bearings with no rib (sleeve type) structure in the inner ring or outer ring, it is necessary to ensure that the rollers do not protrude or scatter from the window hole of the cage during assembly. Slots are chiseled on the window beam or protrusions are reserved during processing. The way of chiseling the grooves will cause micro stress cracks on the surface of the cage and uneven metal accumulation, which seriously affects the dynamic balance and life of the cage. The method is difficult to process and the accuracy is difficult to guarantee, which also seriously affects the dynamic balance of the cage. Contents o...

AI Technical Summary

Problems solved by technology

[0002] For cylindrical roller bearings with no rib (sleeve type) structure in the inner ring or outer ring, it is necessary to ensure that the rollers do not protrude or scatter from the window hole of the cage during assembly. Slots are chiseled on the window beam or protrusions are reserved during processing. The way of chiseling the grooves will cause micro stress cracks on the surface of the cage and uneven metal accumulation, which seriously affects the dynamic balance and life of the cage. The method is difficult to process and the accuracy is difficult to guarantee, which also seriously affects the dynamic balance of the cage.

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