Novel self-aligning roller bearing allowing wide-angle deflection

A self-aligning roller bearing and large-angle technology, applied in the field of bearings, can solve the problems that the self-aligning roller bearing cannot meet the requirements, cannot meet the main engine, and the deflection angle is small, so as to increase the mutual deflection angle and reduce energy consumption. , the effect of reducing the contact angle

Active Publication Date: 2014-12-17
UBC SUZHOU BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Novel self-aligning roller bearing allowing wide-angle deflection

Examples

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Effect test

Embodiment 1

[0024] Take spherical roller bearing 23224CC as an example, such as figure 1 As shown, it includes: outer ring 1, inner ring 2, rolling elements 3 and cage 4, the width of the outer ring 1 is greater than the width of the inner ring 2, and the outer ring 1 is provided with a spherical raceway , the inner ring 2 is a double raceway inner ring with a first raceway and a second raceway, the cage 4 and rolling elements 3 have two sets, and one set is set on the spherical raceway of the outer ring 1 between the first raceway of the inner ring 2 and the other set between the spherical raceway of the outer ring 1 and the second raceway of the inner ring 2 .

[0025] Its external dimensions are: inner diameter 120mm×outer diameter 215mm×inner ring 2 width 76mm, outer ring 1 width 95mm, which is 125% of the inner ring 2 width; at the same time, the installation distance of the two sets of rolling elements 3 becomes smaller , so that the contact angle is reduced by 0.77°, from the orig...

Embodiment 2

[0027] Take spherical roller bearing 22322CC as an example, such as figure 1 As shown, it includes: outer ring 1, inner ring 2, rolling elements 3 and cage 4, the width of the outer ring 1 is greater than the width of the inner ring 2, and the outer ring 1 is provided with a spherical raceway , the inner ring 2 is a double raceway inner ring with a first raceway and a second raceway, the cage 4 and rolling elements 3 have two sets, and one set is set on the spherical raceway of the outer ring 1 between the first raceway of the inner ring 2 and the other set between the spherical raceway of the outer ring 1 and the second raceway of the inner ring 2 .

[0028] Its external dimensions are: inner diameter 110mm×outer diameter 240mm×inner ring 2 width 80mm, outer ring 1 width 105mm, which is 131.25% of the inner ring 2 width; at the same time, the installation distance of the two sets of rolling elements 3 becomes smaller , so that the contact angle is reduced by 0.6°, from the o...

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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...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): F16C23/06F16C33/58F16C33/48
Inventor李举超王秀明王明伟尤伟清
OwnerUBC SUZHOU BEARING