CN215567305U

CN215567305U - High-bearing self-aligning roller bearing

Info

Publication number: CN215567305U
Application number: CN202121037223.7U
Authority: CN
Inventors: 张振华
Original assignee: Lianrui Machinery Hangzhou Co ltd
Current assignee: Lianrui Machinery Hangzhou Co ltd
Priority date: 2021-05-15
Filing date: 2021-05-15
Publication date: 2022-01-18
Anticipated expiration: 2031-05-15

Abstract

The utility model discloses a high-bearing self-aligning roller bearing which comprises an outer bearing ring and an inner bearing ring, wherein the outer bearing ring and the inner bearing ring are arranged concentrically, roller assemblies are respectively arranged on two sides of a cavity between the outer bearing ring and the inner bearing ring, one of the roller assemblies consists of a first retainer and a first roller, and the other roller assembly consists of a second retainer and a second roller. According to the utility model, the ball retainer is clamped and fixed between the two existing retainers, the middle part of the ball retainer is connected with the adjusting ball in a rolling manner, the outer side of the adjusting ball is connected in the groove in the outer bearing ring in a rolling manner, and the two sides of the adjusting ball are tangent to the end surfaces of the two rollers, so that the axial load lifting can be realized, and meanwhile, the synchronous and rolling actions between the two rollers at the two sides have synergistic effects, so that the high load, silence and wear resistance of the whole roller bearing are improved.

Description

High-bearing self-aligning roller bearing

Technical Field

The utility model relates to the technical field of roller bearings, in particular to a high-bearing centering-adjustable roller bearing.

Background

The self-aligning roller bearing is a bearing assembled with drum-shaped rollers between an inner ring with two raceways and an outer ring with spherical raceways. The self-aligning roller bearing is provided with two rows of rollers, and mainly bears radial load and can bear axial load in any direction. The bearing has high radial load capacity, is particularly suitable for working under heavy load or vibration load, but cannot bear pure axial load. The outer ring raceway of the bearing is spherical, so that the bearing has good aligning performance and can compensate the coaxiality error.

The existing roller bearing is provided with two rows of rollers, and mainly bears radial load and can bear axial load in any direction. The radial bearing ring has high radial load capacity, is particularly suitable for working under heavy load or vibration load, but cannot bear more axial load, and simultaneously, when the end surface between two rows of rollers is unevenly stressed in the inner bearing ring, the rollers roll asynchronously, so that the unilateral abrasion of the bearing ring is caused, and the service life of the bearing is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a high-bearing centering-adjustable roller bearing.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a but high bearing aligning roller bearing, includes outer race ring and inner race ring, outer race ring and inner race ring are concentric setting, the cavity both sides are equipped with the roller subassembly respectively between outer race ring and the inner race ring, one of them the roller subassembly comprises first holder and first roller, another the roller subassembly comprises second holder and second roller, the both ends difference swing joint of first roller, second roller is at the inner wall of first holder and second holder, first roller and second roller equidistance annular distribution respectively are on the outer wall of first holder and second holder, be connected with the ball holder between first holder and the second holder, and the inner wall outer wall of ball holder is equipped with the ball groove, the inner wall swing joint in ball groove has the regulation ball.

As a further scheme of the utility model, the specifications of the first roller and the second roller are the same, and the outer wall of the inner bearing ring close to the two sides of the middle part is provided with the same roller inclined grooves.

As a further aspect of the present invention, when the specifications of the first roller and the second roller are different, roller chutes tangent to the outer walls of the end portions of the first roller and the second roller are respectively provided on the outer wall of the inner bearing ring near the middle portion.

As a further aspect of the present invention, the single side of the outer bearing ring is provided with an inwardly extending side flange.

As a further scheme of the utility model, one side of the inner bearing ring is provided with a side flange extending outwards.

As a further aspect of the utility model, an oil drainage groove is left between the side flanges and the roller ends.

The utility model has the beneficial effects that:

1. according to the self-aligning roller bearing, a ball retainer is clamped and fixed between two existing retainers, the middle part of the ball retainer is connected with an adjusting ball in a rolling manner, the outer side of the adjusting ball is connected in a groove in an outer bearing ring in a rolling manner, two sides of the adjusting ball are tangent to the end surfaces of two rollers, axial load lifting can be realized, the synchronous and rolling actions between the rollers at two sides are simultaneously synergistic, and the high load, mute and wear-resisting capacities of the whole roller bearing are improved;

2. the inner ring and the outer ring of the self-aligning roller bearing are both provided with single-side flanges, and the two flanges are different sides, so that the offset of the roller and the retainer can be effectively limited, and the rolling stability of the roller and the retainer is improved.

Drawings

Fig. 1 is an exploded view of a high-load self-aligning roller bearing according to the present invention;

fig. 2 is a schematic structural view of a high-bearing self-aligning roller bearing according to the present invention;

fig. 3 is a schematic view of a cross-section a-a of a high-load self-aligning roller bearing according to the present invention.

In the figure: 1. an outer bearing ring; 2. mounting grooves; 3. a first roller; 4. a first holder; 5. an inner bearing ring; 6. adjusting the ball; 7. a ball retainer; 8. a second holder; 9. a second roller; 10. and (6) side flanges.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a high-bearing self-aligning roller bearing comprises an outer bearing ring 1 and an inner bearing ring 5, wherein the outer bearing ring 1 and the inner bearing ring 5 are concentrically arranged, roller assemblies are respectively arranged on two sides of a cavity between the outer bearing ring 1 and the inner bearing ring 5, one roller assembly comprises a first retainer 4 and a first roller 3, the other roller assembly comprises a second retainer 8 and a second roller 9, two ends of the first roller 3 and the second roller 9 are respectively and movably connected with the inner walls of the first retainer 4 and the second retainer 8, the first roller 3 and the second roller 9 are respectively and annularly distributed on the outer walls of the first retainer 4 and the second retainer 8 at equal intervals, a ball retainer 7 is connected between the first retainer 4 and the second retainer 8, a ball groove is arranged on the outer wall of the inner wall of the ball retainer 7, and an adjusting ball 6 is movably connected with the inner wall of the ball groove, the single side of outer bearing circle 1 is equipped with the side flange 10 of inside extension, and the single side of inner bearing circle 5 is equipped with the side flange 10 of outside extension, leaves the oil extraction groove between side flange 10 and the roller tip.

The self-aligning roller bearing comprises the following two types: 1. in the bilateral symmetrical self-aligning roller bearing, the specifications of the first roller 3 and the second roller 9 are the same, and the same roller chutes are arranged on the two sides of the outer wall of the inner bearing ring 5 close to the middle part; 2. in the bilateral asymmetric self-aligning roller bearing, when the specifications of the first roller 3 and the second roller 9 are different, roller chutes tangent to the outer walls of the end parts of the first roller 3 and the second roller 9 are respectively arranged on the two sides, close to the middle part, of the outer wall of the inner bearing ring 5.

The working principle of the center-adjustable roller bearing is as follows:

1. the roller bearing is assembled through the outer bearing ring 1 and the inner bearing ring 5 in different lateral directions and the same axial center, the two retainers and the roller are positioned between the two assembly cavities, the ball retainer 7 is arranged between the two retainers, and the adjusting ball 6 in the ball retainer 7 rolls in the groove body of the outer bearing ring 1;

2. the outer bearing ring 1 is provided with a common spherical raceway, the inner bearing ring 5 is provided with two raceways inclined to the bearing axis, the bearing has good aligning performance, and the bearing can still be normally used when the shaft is stressed to bend or is installed to be non-concentric.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", "first", "second", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a high-bearing self-aligning roller bearing, includes outer race ring (1) and inner race ring (5), its characterized in that, outer race ring (1) and inner race ring (5) are the concentric setting, cavity both sides are equipped with the roller subassembly respectively between outer race ring (1) and inner race ring (5), one of them the roller subassembly comprises first retainer (4) and first roller (3), another the roller subassembly comprises second retainer (8) and second roller (9), the both ends of first roller (3), second roller (9) swing joint respectively on the inner wall of first retainer (4) and second retainer (8), first roller (3) and second roller (9) equidistance annular distribution respectively are on the outer wall of first retainer (4) and second retainer (8), be connected with ball retainer (7) between first retainer (4) and second retainer (8), and the outer wall of the inner wall of the ball retainer (7) is provided with a ball groove, and the inner wall of the ball groove is movably connected with an adjusting ball (6).

2. A high load-bearing self-aligning roller bearing according to claim 1, characterized in that the first and second rollers (3, 9) are of the same size and the outer wall of the inner bearing ring (5) is provided with the same roller chutes near both sides of the middle portion.

3. The high-load-bearing self-aligning roller bearing according to claim 1, wherein the specifications of the first roller (3) and the second roller (9) are different, and roller chutes tangent to the outer walls of the end portions of the first roller (3) and the second roller (9) are respectively arranged on the outer wall of the inner bearing ring (5) close to the two sides of the middle portion.

4. A high load-bearing self-aligning roller bearing according to claim 1, characterized in that one side of the outer bearing ring (1) is provided with inwardly extending side flanges (10).

5. A high load-bearing self-aligning roller bearing according to claim 1, characterized in that one side of the inner bearing ring (5) is provided with outwardly extending side flanges (10).

6. A high load bearing self-aligning roller bearing according to claim 5, characterized in that an oil drain groove is left between the side flanges (10) and the roller ends.