CN212407325U

CN212407325U - Riveting retainer type cylindrical roller bearing

Info

Publication number: CN212407325U
Application number: CN202021215697.1U
Authority: CN
Inventors: 冯世昱; 卢圣洋; 孙洪斌; 辛忠伟; 王蕾; 王宇; 高德良; 段佳平; 张昭; 臧小锋; 吕兴旺
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: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-01-26
Anticipated expiration: 2030-06-28

Abstract

The utility model belongs to the technical field of bearing equipment manufacturing, in particular to a riveting retainer type cylindrical roller bearing, which comprises an inner ring, an outer ring and a roller, wherein the roller is retained between the inner ring and the outer ring through a retainer; the retainer comprises a retainer seat and a retainer cover, wherein a plurality of radial convex ribs are uniformly distributed on the retainer seat along the circumferential direction, pockets for containing rollers are formed between the adjacent convex ribs, convex rib tenons extend outwards from the radial convex ribs, a plurality of windows corresponding to the convex rib tenons are arranged on the retainer cover, and the convex rib tenons of the retainer seat penetrate through the windows of the retainer cover and are riveted with the retainer cover; and a large arc angle extends outwards from the corner of the window. The utility model discloses a set up the butterfly window that has big arc angle on the retainer lid, avoided the side of protruding muscle tenon and the retainer lid to produce to interfere, promoted the product riveting quality.

Description

Riveting retainer type cylindrical roller bearing

Technical Field

The utility model belongs to the technical field of the bearing equipment is made, concretely relates to riveting retainer type cylindrical roller bearing.

Background

The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision. The bearing generally comprises an outer ring, an inner ring, a rolling body and a retainer.

In the current cylindrical roller bearing market, the riveting structure of most riveting holders has poor combination quality, the holder seat and the holder cover are easily interfered, the holder cover is easily contacted and rubbed with the holder seat during riveting, and simultaneously, the rivet joint root is heated and stressed, so that riveting pressure accumulations are easily formed, the riveting pressure accumulations interfere with the roller to be difficult to rotate, are mutually worn and damaged, and the precision and the service life of the roller are influenced.

Disclosure of Invention

According to the defect that above-mentioned prior art exists, the utility model aims at providing a riveting retainer formula cylindrical roller bearing who reduces interference, riveting are of high quality.

In order to achieve the above object, the utility model adopts the following technical scheme: a riveting retainer type cylindrical roller bearing comprises an inner ring, an outer ring and rollers, wherein the rollers are retained between the inner ring and the outer ring through a retainer; the retainer comprises a retainer seat and a retainer cover, wherein a plurality of radial convex ribs are uniformly distributed on the retainer seat along the circumferential direction, pockets for containing rollers are formed between the adjacent convex ribs, convex rib tenons extend outwards from the radial convex ribs, a plurality of windows corresponding to the convex rib tenons are arranged on the retainer cover, and the convex rib tenons of the retainer seat penetrate through the windows of the retainer cover and are riveted with the retainer cover; and a large arc angle extends outwards from the corner of the window.

Furthermore, the cross section of each rib tenon is square, each window is a square window, and four corners of each window extend outwards to form large arc corners.

Further, one side of the retainer cover close to the roller is provided with a circle of connecting grooves along the circumferential direction.

Further, one side, far away from the roller, of the retainer cover is provided with a circle of weight reduction grooves along the circumferential direction.

Further, the window communicates the connecting groove and the lightening groove.

Furthermore, flanges are arranged on two sides of the outer ring, and the inner side surfaces of the flanges are in contact with the end faces of the rollers.

Furthermore, a corner of the outer ring connected with the flange is provided with a circular arc-shaped overtravel groove.

Furthermore, the flange of the outer ring and the retainer are arranged in a clearance mode.

Further, guide slopes for assembly are arranged on two sides of the outer diameter of the bearing inner ring.

The utility model has the advantages that: the utility model discloses a set up the butterfly window that has big arc angle on the retainer lid, avoided the side of protruding muscle tenon and the retainer lid to produce to interfere, promoted the product riveting quality.

Drawings

FIG. 1 is a schematic view of a bearing structure of the present application;

FIG. 2 is a cross-sectional view of a rivet joint of the cage;

FIG. 3 is a schematic view of the cage cover slot;

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

FIG. 5 is a schematic view of a rivet;

FIG. 6 is a schematic view of a seat fillet;

FIG. 7 is a schematic view of the tip of the socket head;

in the figure: 1. the device comprises an inner ring, 2, an outer ring, 3, a roller, 4, an overtravel groove, 5, a holder seat, 6, a holder cover, 7, a convex rib tenon, 8, a window, 9, a connecting groove, 10, a lightening groove, 11, a large arc angle, 12 and a flange.

Detailed Description

In order to make the structure and function of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solution in the embodiments of the present invention.

Referring to fig. 1-7, a riveted retainer cylindrical roller bearing includes an inner ring 1, an outer ring 2, and rollers 3, the rollers 3 being retained between the inner ring 1 and the outer ring 2 by a retainer; the retainer comprises a retainer seat 5 and a retainer cover 6, a plurality of radial convex ribs are uniformly distributed on the retainer seat 5 along the circumferential direction, pockets for containing rollers are formed between adjacent convex ribs, convex rib tenons 7 extend outwards from the radial convex ribs, a plurality of windows 8 corresponding to the convex rib tenons 7 are arranged on the retainer cover 6, and the convex rib tenons 7 of the retainer seat penetrate through the windows 8 of the retainer cover and are riveted with the retainer cover 6; the cross section of each rib tenon 7 is square or quadrilateral, four side edges of each rib tenon 7 are seat head sharp corners, each window 8 is a square window, and the four corners of each retaining frame cover window 8 extend outwards to form large arc corners 11 to form butterfly windows, so that the interference of the seat head sharp corners of the rib tenons 7 can be effectively avoided, and the product riveting quality is improved.

Further, a ring of coupling grooves 9 is provided in a circumferential direction on a side of the cage cover 6 adjacent to the roller 3. The connecting groove 9 can avoid the seat fillet at the joint of the convex rib and the convex rib tenon 7, so that the retainer cover 6 is ensured to be closely matched with the retainer seat 5, and the riveting quality and the bearing precision are improved.

Further, the cage cover 6 is provided with a circle of weight-reducing grooves 10 in a circumferential direction on a side thereof away from the roller 3. The weight reduction grooves 10 are wide and large grooves, so that the weight reduction purpose is achieved, meanwhile, the wide and large grooves facilitate the entry of a rivet head, the height of the holder head of the retainer can be accurately controlled, and the machining quality is improved.

Further, the window 8 communicates the connecting groove 9 and the lightening groove 10. The multi-groove structure fully releases the stress of the retainer, and ensures that the precision of the retainer is long-term and stable.

Further, both sides of the outer ring 2 are provided with flanges 12, and the inner side surfaces of the flanges 12 are in contact with the end surfaces of the rollers 3. The flanges 12 on both sides axially limit the roller 3 and the cage.

Furthermore, a circular arc-shaped overtravel groove 4 is arranged at the corner where the outer ring 2 is connected with the flange 12.

Further, the outer ring rib 12 is arranged in a clearance with the retainer. The friction generated by the contact of the outer ring 2 and the retainer is avoided.

The above list is only the preferred embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.

Claims

1. The utility model provides a riveting holder formula cylindrical roller bearing which characterized in that: the roller bearing comprises an inner ring, an outer ring and a roller, wherein the roller is kept between the inner ring and the outer ring through a retainer; the retainer comprises a retainer seat and a retainer cover, wherein a plurality of radial convex ribs are uniformly distributed on the retainer seat along the circumferential direction, pockets for containing rollers are formed between the adjacent convex ribs, convex rib tenons extend outwards from the radial convex ribs, a plurality of windows corresponding to the convex rib tenons are arranged on the retainer cover, and the convex rib tenons of the retainer seat penetrate through the windows of the retainer cover and are riveted with the retainer cover; and a large arc angle extends outwards from the corner of the window.

2. The rivet cage cylindrical roller bearing of claim 1, wherein: the cross section of the convex rib tenon is square, the window is a square window, and four corners of the window extend outwards to form large arc corners.

3. The rivet cage cylindrical roller bearing of claim 1, wherein: one side of the retainer cover close to the roller is provided with a circle of connecting groove along the circumferential direction.

4. The rivet cage cylindrical roller bearing of claim 3, wherein: and one side of the retainer cover, which is far away from the roller, is provided with a circle of weight reduction grooves along the circumferential direction.

5. The rivet cage cylindrical roller bearing of claim 4, wherein: the window is communicated with the connecting groove and the lightening groove.

6. The rivet cage cylindrical roller bearing of claim 1, wherein: and flanges are arranged on two sides of the outer ring, and the inner side surfaces of the flanges are in contact with the end faces of the rollers.

7. The riveted cage cylindrical roller bearing of claim 6, characterized in that: and a circular arc-shaped overtravel groove is formed at the corner where the outer ring is connected with the flange.

8. The rivet cage cylindrical roller bearing of claim 6, wherein: and the flange of the outer ring and the retainer are arranged in a clearance way.