CN219529602U

CN219529602U - Self-aligning roller bearing retainer with lubricating oil groove

Info

Publication number: CN219529602U
Application number: CN202320325875.3U
Authority: CN
Inventors: 黄建魁; 徐巍; 孙岳松; 廖鑫; 叶泽堃; 任启萌; 赵强; 吕迪聪; 王有强
Original assignee: Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd
Current assignee: Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-08-15
Anticipated expiration: 2033-02-27

Abstract

The utility model belongs to the technical field of bearing retainers, and particularly relates to a self-aligning roller bearing retainer with a lubricating oil groove. In order to reduce impact influence of the rolling bodies on the retainer in the running process, the guide surfaces of the pockets of the retainer are provided with the lubricating oil grooves, so that a lubricating oil film is formed between the retainer and the rolling bodies in the bearing running process, impact load of the rolling bodies on the retainer is reduced, the rolling bodies are ensured to flexibly rotate in work, and the service life of the bearing is prolonged.

Description

Self-aligning roller bearing retainer with lubricating oil groove

Technical Field

The utility model belongs to the technical field of bearing retainers, and particularly relates to a self-aligning roller bearing retainer with a lubricating oil groove.

Background

The wind power main shaft bearing is required to bear larger load, so the self-aligning roller bearing is larger in size, the entity retainer guides the rolling bodies to rotate and receives larger impact load of the rolling bodies, so lubrication between the retainer and the rolling bodies is important, abrasion of the bearing in operation is reduced, lubrication between the retainer and the rolling bodies is ensured, and the service life of the bearing is prolonged.

Disclosure of Invention

According to the defects of the prior art, the utility model aims to provide the aligning roller bearing retainer with the lubricating oil groove, so that the impact of the rolling bodies on the retainer in the running process is reduced, and the lubrication between the retainer and the rolling bodies is ensured.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a self-aligning roller bearing holder with lubrication groove, includes annular support body and a plurality of holder roof beams of interval setting in annular support body both sides, forms the pocket that holds the rolling element between the adjacent holder roof beam, and the lateral wall that holder roof beam and rolling element contacted is the pocket guide face, be provided with the lubrication groove along radial extension on the pocket guide face.

Further, the pocket guide surface is tangential to the rolling bodies, and the oil groove extends along a tangential position.

Further, the pocket guide surface comprises a conical pocket section and a vertical pocket section, the conical pocket section is connected with the annular frame body, and the lubricating oil groove is formed in the conical pocket section.

Further, the lubrication groove is provided at 1/2 of the tapered pocket section.

Further, the radius of the lubricating oil groove is 2% of the diameter of the rolling body.

Further, the lubrication groove extends from an outer diameter side of the cage beam to an inner diameter side of the cage beam.

Further, the retainer is a solid retainer.

The beneficial effects of the utility model are as follows: in order to reduce impact influence of the rolling bodies on the retainer in the running process, the guide surfaces of the pockets of the retainer are provided with the lubricating oil grooves, so that a lubricating oil film is formed between the retainer and the rolling bodies in the bearing running process, impact load of the rolling bodies on the retainer is reduced, the rolling bodies are ensured to flexibly rotate in work, and the service life of the bearing is prolonged.

Drawings

FIG. 1 is a block diagram of a self-aligning roller bearing;

FIG. 2 is an assembled perspective view of a cage and rolling elements;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a schematic view of a cage structure;

FIG. 5 is a side view of the cage structure of FIG. 4;

FIG. 6 is a two-dimensional view of cage and rolling element assembly;

in the figure: 1. the device comprises an outer ring, 2, an inner ring, 3, rolling bodies, 4, a retainer, 5, an annular frame body, 6, a retainer beam, 7, a pocket hole, 8, a lubricating oil groove, 9, a pocket hole guide surface, 9.1 conical pocket hole sections and 9.2 vertical pocket hole sections.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1-6, a self-aligning roller bearing retainer with a lubrication groove comprises an annular retainer body 5 and a plurality of retainer beams 6 which are arranged at two sides of the annular retainer body at intervals, pockets 7 for accommodating rolling bodies are formed between the adjacent retainer beams 6, the side walls of the retainer beams 6, which are in contact with the rolling bodies 3, are pocket guide surfaces 9, and the radially extending lubrication grooves 8 are arranged on the pocket guide surfaces 9.

Further, the pocket guide surface 9 is tangential to the rolling elements 3, and the oil groove 8 extends along a tangential position. And an oil groove is added at the working tangential position of the rolling body and the retainer to form an oil film system, so that the lubrication effect is ensured.

Further, the pocket guide surface 9 comprises a conical pocket section 9.1 and a vertical pocket section 9.2, the conical pocket section 9.1 is connected with the annular frame body 5, and the lubricating oil groove 8 is formed in the conical pocket section 9.1.

Based on the above technical scheme, the two parts of structures of the conical pocket section 9.1 and the vertical pocket section 9.2 all have theoretical rolling body tangential points, and the lubricating oil groove 8 is arranged at the tangential line of the rolling body and the conical pocket section 9.1, and the area ratio of the conical section to the vertical section is 4:5, the vertical pocket segment 9.2 serves for guiding the rolling elements.

Further, the lubrication groove 8 is provided at 1/2 of the conical pocket section 9.1.

Further, the radius of the lubricating oil groove 8 is 2% of the diameter of the rolling body.

Based on the technical scheme, the oil groove needs to be provided with the radius of the circular arc groove, the radius corresponds to about 2% of the diameter of the rolling body, and the stress intensity of the retainer is not affected through finite element simulation analysis.

Further, the lubrication groove 8 extends from the outer diameter side of the cage beam to the inner diameter side of the cage beam.

Further, the cage 4 is a solid cage.

In order to reduce impact of the rolling bodies on the retainer in the running process, a lubrication groove is formed in the guide surface of the pocket of the retainer, the position of the lubrication groove is about 1/2 of the diameter of the conical pocket section, the radius of the lubrication groove is about 2% of the diameter of the rolling bodies, a lubrication oil film is formed between the retainer and the rolling bodies in the bearing running process, the impact load of the rolling bodies on the retainer is reduced, the rolling bodies are guaranteed to flexibly rotate in work, and the service life of the bearing is prolonged.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The foregoing list is only the preferred embodiments of the present utility model. Obviously, the utility model is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present utility model.

Claims

1. A self-aligning roller bearing cage with lubrication groove, characterized in that: the rolling bearing comprises an annular frame body and a plurality of retainer beams which are arranged on two sides of the annular frame body at intervals, pockets for accommodating rolling bodies are formed between the adjacent retainer beams, the side walls of the retainer beams, which are in contact with the rolling bodies, are pocket guide surfaces, and lubricating oil grooves extending along the radial direction are formed in the pocket guide surfaces.

2. A self-aligning roller bearing cage with lubrication groove as in claim 1 wherein: the pocket guide surface is tangential to the rolling bodies, and the oil groove extends along a tangential position.

3. A self-aligning roller bearing cage with lubrication groove as in claim 1 wherein: the pocket guide surface comprises a conical pocket section and a vertical pocket section, the conical pocket section is connected with the annular frame body, and the lubricating oil groove is formed in the conical pocket section.

4. A self-aligning roller bearing cage with lubrication grooves as claimed in claim 3, wherein: the lubrication groove is arranged at 1/2 of the conical pocket section.

5. A self-aligning roller bearing cage with lubrication groove as in claim 1 wherein: the radius of the lubricating oil groove is 2% of the diameter of the rolling body.

6. A self-aligning roller bearing cage with lubrication groove as in claim 1 wherein: the lubrication groove extends from an outer diameter side of the cage beam to an inner diameter side of the cage beam.

7. A self-aligning roller bearing cage with lubrication groove as in claim 1 wherein: the retainer is a solid retainer.