CN214499784U

CN214499784U - Cylindrical roller bearing with fine centering performance

Info

Publication number: CN214499784U
Application number: CN202120180577.0U
Authority: CN
Inventors: 高震; 丛文兴; 张海秀
Original assignee: Wafangdian Jinfeng Bearing Manufacturing Co ltd
Current assignee: Wafangdian Jinfeng Bearing Manufacturing Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-10-26
Anticipated expiration: 2031-01-22

Abstract

The utility model discloses a cylindrical roller bearing with fine setting heart performance, including inner circle, outer lane and sealing ring, the inner circle outside is equipped with first raceway, and the outer lane inner wall face is equipped with the second raceway, and inner circle and the mutual joint of outer lane constitute the outer lane between first raceway and the second raceway, and the outer lane inner wall is arranged there is the roller, and the roller is the single file and arranges, through the profile design of change inner circle raceway and roller to this reinforcing bearing's aligning performance, stress concentration when making use this bearing is of value to the improvement life who improves the bearing.

Description

Cylindrical roller bearing with fine centering performance

Technical Field

The utility model relates to a roller bearing technical field specifically is cylindrical roller bearing with fine setting heart performance.

Background

A rolling bearing is a precise mechanical element that reduces friction loss by changing sliding friction between a running shaft and a shaft seat into rolling friction. The rolling bearing generally comprises four parts, namely an inner ring, an outer ring, a rolling body and a retainer, wherein the inner ring is used for being matched with a shaft and rotating together with the shaft; the outer ring is matched with the bearing seat to play a supporting role; the rolling bodies are uniformly distributed between the inner ring and the outer ring by virtue of the retainer, and the shape, size and number of the rolling bodies directly influence the service performance and service life of the rolling bearing; the retainer can uniformly distribute the rolling bodies and guide the rolling bodies to rotate to play a role in lubrication;

the existing rolling bearing generally comprises a bearing inner ring, a bearing outer ring, a roller and the like, has a small deflection angle, and is easy to have a deflection load phenomenon in use.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the cylindrical roller bearing with the fine centering performance comprises an inner ring, an outer ring and a sealing ring, wherein a first raceway is arranged on the outer side of the inner ring, a second raceway is arranged on the inner side wall surface of the outer ring, the inner ring and the outer ring are mutually clamped, the outer ring is formed between the first raceway and the second raceway, rollers are arranged on the inner wall of the outer ring, and the rollers are arranged in a single row.

Preferably, the first raceway is convex in an arc shape.

Preferably, the first raceway is further provided with a groove in the middle.

Preferably, an oil conveying groove is formed in the outer side of the groove, and the oil conveying groove is annularly arranged on the outer side of the first rolling way.

Preferably, the oil delivery groove comprises a first oil delivery groove and a second oil delivery groove, the first oil delivery groove is arranged on the outer side of the first rolling way, and the second oil delivery groove is arranged in the middle of the first rolling way.

Preferably, the roller is a cylindrical body, and the roller has an arc-shaped cross-sectional profile along the axis.

Preferably, the roller is provided with stabilizing ends at both ends and is mounted inside the outer ring through the stabilizing ends

Optionally, retainers are arranged on two sides of the roller mounting position.

The utility model discloses following beneficial effect has: by changing the profile design of the inner ring raceway and the roller, the aligning performance of the bearing is enhanced, so that the stress is concentrated when the bearing is used, and the service life of the bearing is prolonged beneficially.

Drawings

FIG. 1 is a schematic view of the present invention;

in the figure: 1. the bearing comprises an inner ring, 11, a first raceway, 111, a groove, 12, a second raceway, 2, an outer ring, 3, a sealing ring, 4, an oil conveying groove, 41, a first oil conveying groove, 42, a second oil conveying groove, 5, a retainer, 6, rollers, 61 and a stable end.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the cylindrical roller bearing with fine centering performance includes an inner ring 1, an outer ring 2 and a sealing ring 3, a first raceway 11 is disposed on an outer side of the inner ring 1, a second raceway 12 is disposed on an inner side wall surface of the outer ring 2, the inner ring 1 and the outer ring 2 are clamped with each other, the outer ring 2 is formed between the first raceway 11 and the second raceway 12, rollers 6 are arranged on an inner wall of an installation cavity 2, the rollers 6 are arranged in a single row, the inner ring 1, the outer ring 2, the rollers 6 and the sealing ring 3 are sequentially installed, and the rollers 6 rotate in the outer ring 2 when the bearing works.

Specifically, the first raceway 11 is convex in an arc shape.

Specifically, the middle part of the first raceway 11 is further provided with a groove 111, and the groove 111 is matched with the roller 6 for use, so that stress concentration during use is improved.

Specifically, the oil delivery groove 4 is disposed outside the groove 111, the oil delivery groove 4 is annularly disposed outside the first raceway 11, and lubricating oil can be injected inwards through the oil delivery groove 4 to enhance the rotating effect thereof.

Specifically, the oil delivery groove 4 includes a first oil delivery groove 41 and a second oil delivery groove 42, the first oil delivery groove 41 is disposed outside the first raceway 11, the second oil delivery groove 42 is disposed in the middle of the first raceway 11, and two oil delivery grooves are provided to lubricate the roller more sufficiently.

Specifically, the roller 6 is a cylindrical body, and the profile of the cross section of the roller 6 along the axial line is arc-shaped, and the roller is matched with the raceway, so that the aligning performance of the bearing can be enhanced, and the service life can be prolonged.

Specifically, the roller 6 is provided with stabilizing ends 61 at both ends, and the roller 6 is more stably rotated by the stabilizing ends 61 being mounted inside the outer ring 2.

Specifically, the roller 6 is further provided with the cages 5 on both sides of the mounting position thereof so that the rollers 6 are uniformly distributed.

Example (b): the inner ring 1, the outer ring 2, the rollers 6 and the sealing ring 3 are sequentially installed, the rollers 6 rotate in the outer ring 2 when the bearing works, the grooves 111 are matched with the rollers 6 for use, the concentrated stress when the bearing is used is improved, lubricating oil can be injected inwards through the oil conveying groove 4 to enhance the rotating effect of the bearing, the rollers 6 are cylindrical, the profiles of the cross sections of the rollers 6 along the axial line are arc-shaped, the rollers are matched with the roller paths for use, the aligning performance of the bearing can be enhanced, and the service life is prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Cylindrical roller bearing with fine tuning performance, including inner circle (1), outer lane (2) and sealing ring (3), its characterized in that: the utility model discloses a bearing inner ring (2) and bearing inner ring, the inner circle (1) outside is equipped with first raceway (11), outer lane (2) inside lateral surface is equipped with second raceway (12), inner circle (1) and outer lane (2) joint each other, constitute outer lane (2) between first raceway (11) and second raceway (12), outer lane (2) inner wall is arranged and is had roller (6), just roller (6) are the single file row and arrange.

2. Cylindrical roller bearing with fine centering properties according to claim 1, characterized in that: the first roller path (11) is in an arc-shaped bulge.

3. Cylindrical roller bearing with fine centering properties according to claim 1, characterized in that: and a groove (111) is also formed in the middle of the first raceway (11).

4. Cylindrical roller bearing with fine centering properties according to claim 3, characterized in that: an oil conveying groove (4) is formed in the outer side of the groove (111), and the oil conveying groove (4) is annularly arranged on the outer side of the first rolling way (11).

5. Cylindrical roller bearing with fine centering properties according to claim 4, characterized in that: the oil conveying groove (4) comprises a first oil conveying groove (41) and a second oil conveying groove (42), the first oil conveying groove (41) is arranged on the outer side of the first rolling way (11), and the second oil conveying groove (42) is arranged in the middle of the first rolling way (11).

6. Cylindrical roller bearing with fine centering properties according to claim 5, characterized in that: the roller (6) is a cylindrical body, and the profile of the cross section of the roller (6) along the axis is arc-shaped.

7. Cylindrical roller bearing with fine centering properties according to claim 6, characterized in that: the two ends of the roller (6) are provided with stable ends (61), and the roller is arranged in the outer ring (2) through the stable ends (61).

8. The cylindrical roller bearing with fine centering properties as claimed in claim 7, wherein: and retainers (5) are arranged on two sides of the roller (6) mounting position.