CN115823114A

CN115823114A - Major self-aligning roller bearing with roller end part modified

Info

Publication number: CN115823114A
Application number: CN202211618804.9A
Authority: CN
Inventors: 张延娜; 张磊磊; 关向可
Original assignee: Luoyang New Energy Bearing Manufacturing Co ltd
Current assignee: Luoyang New Energy Bearing Manufacturing Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-03-21

Abstract

The invention belongs to the technical field of heavy duty self-aligning roller bearings, and provides a heavy duty self-aligning roller bearing with a roller end part modified. The provided heavy self-aligning roller bearing with the roller end part modified in shape consists of an outer ring, an inner ring, a retainer and rollers; the outer diameter of the outer ring is phi 1585, the height of the outer ring is 585, the inner diameter of the inner ring is phi 1000, the height of the inner ring is 585, and the inner ring and the outer ring are respectively provided with roller paths with curvature radius of R540; the retainer is of a split structure; the roller is a spherical roller with two ends modified, and the whole profile of the spherical roller with two symmetrical ends modified consists of three parts, namely a middle profile and two end profiles. The invention solves the problem that the edge contact is formed between the roller chamfer and the roller path under the condition of full load and heavy load of the major self-aligning roller bearing to cause roller path damage, improves the contact state between the roller and the roller path when the bearing runs under the full load, avoids abnormal failure and prolongs the service life of the bearing.

Description

Major self-aligning roller bearing with roller end part modified

Technical Field

The invention belongs to the technical field of heavy duty self-aligning roller bearings, and mainly relates to a heavy duty self-aligning roller bearing with a roller end part modified.

Background

The heavy large self-aligning roller bearing has excellent load capacity and self-aligning performance, and is widely used in wind power generators, cement and mining equipment. The heavy large self-aligning roller bearing is often in a severe working environment and complex working conditions, and not only needs to bear a large radial load and a certain axial load during working, but also often accompanies a large impact load. Meanwhile, with the large-scale bearing caused by the large-scale wind driven generator, cement and mine industrial equipment, the working load of the bearing is continuously increased, the load of the bearing in actual work is more and more complex, the distribution of actual force is more and more deviated from a theoretical value, the roller edge is contacted with a roller path in the actual work of the bearing, larger edge stress concentration is generated, and the bearing is rapidly failed, so that the bearing design capable of adapting to the working conditions is more and more important.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a heavy self-aligning roller bearing with a roller end part modified.

The invention adopts the following technical scheme for achieving the aim of the invention:

a big self-aligning roller bearing with a roller end part modified is composed of an outer ring, an inner ring, a retainer and a roller; the outer diameter of the outer ring is phi 1585, the height of the outer ring is 585, the inner diameter of the inner ring is phi 1000, the height of the inner ring is 585, and the inner ring and the outer ring are respectively provided with roller paths with curvature radius of R540; the retainer is of a split structure; the roller is a spherical roller with two ends modified, the whole outline of the spherical roller with two symmetrical modified ends consists of a middle outline and two end outlines, the radius of the middle outline is R532.98, and the radius of the outline which is 57.5 times longer than the end surface is 516.98.

The specification of the roller is phi 145 × 230 and the specification thereof is phi 145 × 230.

The invention provides a heavy duty self-aligning roller bearing with a modified roller end part, which consists of an outer ring, an inner ring, a retainer and a roller; the outer diameter of the outer ring is phi 1585, the height of the outer ring is 585, the inner diameter of the inner ring is phi 1000, the height of the inner ring is 585, the inner ring and the outer ring are respectively provided with a raceway with the curvature radius of R540, the retainer is of a split structure, the roller is a spherical roller with two ends modified, and the specification of the roller is phi 145 x 230. The heavy self-aligning roller bearing adopts the design of spherical rollers with two ends modified, avoids the phenomenon that the edge of the roller is contacted due to the conventional spherical rollers, so that the rolling way is crushed, and prolongs the service life of the heavy self-aligning roller bearing.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention.

Fig. 2 is a schematic structural view of a spherical roller with two ends modified in shape and a common spherical roller in the invention.

In the figure: 1. the bearing comprises a bearing outer ring, a bearing inner ring, a bearing retainer, a spherical roller and spherical rollers, wherein the spherical rollers are modified at two ends.

Detailed Description

The invention is described with reference to the accompanying drawings and specific examples:

as shown in fig. 1, a heavy duty self-aligning roller bearing with a modified roller end part comprises an outer ring 1, an inner ring 2, a retainer 3 and rollers 4; the outer diameter of the outer ring is phi 1585, the height of the outer ring is 585, the inner diameter of the inner ring 2 is phi 1000, the height of the inner ring is 585, the inner ring and the outer ring are respectively provided with a roller path with the curvature radius of R540, the retainer 3 is a split type structure, the roller 4 is a spherical roller with two ends modified, and the specification is phi 145 x 230.

With reference to fig. 2, the radius of the middle profile of the spherical roller with symmetrical shape modification at both ends is R532.98, the radius of the profile which is long from the end face 57.5 is 516.98, and the whole profile consists of three parts, namely the radius of the middle profile is 532.98, and the radius of the profile at both ends is 516.98. The spherical roller with the two ends modified in shape avoids the phenomenon that the edge of the roller is contacted due to the conventional spherical roller, so that the roller path is crushed, and the service life of the heavy self-aligning roller bearing is prolonged.

Claims

1. A major self-aligning roller bearing with a modified roller end part comprises an outer ring, an inner ring, a retainer and rollers; the method is characterized in that: the outer diameter of the outer ring is 1585 mm, the height of the outer ring is 585, the inner diameter of the inner ring is 1000 mm, the height of the inner ring is 585, and the inner ring and the outer ring are respectively provided with a roller path with the curvature radius of R540; the retainer is of a split structure; the roller is a spherical roller with two ends modified, the whole profile of the spherical roller with two symmetrical ends modified consists of three parts, namely a middle profile and two end profiles, the radius of the middle profile is R532.98, and the radius of the profile which is 57.5 times as long as the end surface is 516.98.

2. The heavy duty self-aligning roller bearing with modified roller end portions according to claim 1, wherein: the specification of the roller is phi 145 × 230 and the specification thereof is phi 145 × 230.