Novel self-aligning roller bearing allowing wide-angle deflection

Abstract

The invention discloses a novel self-aligning roller bearing allowing wide-angle deflection. The novel self-aligning roller bearing comprises an outer ring, an inner ring, rollers and a retainer, the outer ring is wider than the inner ring, a spherical raceway is arranged on the outer ring, and the rollers are arranged between the spherical raceway of the outer ring and a raceway of the inner ring through the retainer. By the aid of the mode, contact angles can be decreased, mutual deflection angles of the inner ring and the outer ring are increased, the working efficiency of a main unit of a speed reducer can be improved when the novel self-aligning roller bearing is applied to the main unit, energy consumption is reduced, and the requirements of the high-power speed reducer are met.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a new type of spherical roller bearing that allows large-angle deflection. Background technique [0002] Spherical roller bearings have two rows of rollers, which mainly bear radial loads and can also bear axial loads in either direction. It has a high radial load capacity. This type of bearing has a large load capacity and good impact resistance. Generally speaking, the allowable working speed of spherical roller bearings is low, and it is suitable for heavy loads or vibration loads. Work. [0003] A certain angle of deflection is allowed between the inner and outer rings of common types of spherical roller bearings. During the deflection process, when the rolling body inside the bearing reaches the end face of the outer ring, the deflection angle reaches the limit. Generally, the self-aligning roller The allowable deflection angle of the sub-bearing is 2°~3°. [0004] For spherical r...

AI Technical Summary

Problems solved by technology

[0004] For spherical roller bearings used in high-power reducers, ordinary types of spherical roller bearings cannot meet the requirements due to the large deflection angle between the inner ring and outer ring of the bearing.

Generally, the deflection angle required by the main engine needs to reach 5°~6°, while the ordinary type of spherical roller bearing has the same width and width of the inner ring as the outer ring, and the two rows of rolling elements between the inner ring and the outer ring rely on two steel plates The stamped cages are connected separately, so that the contact angle between the rolling elements and the outer ring and the inner ring raceway is too large, while the inner ring drives the rolling elements and the cage to deflect at a small angle in the outer ring raceway, which cannot meet the requirements of the main engine. needs

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