CN215673202U

CN215673202U - Roller retainer assembly bearing

Info

Publication number: CN215673202U
Application number: CN202121133677.4U
Authority: CN
Inventors: 陈祖华; 郭平; 曾志鹏
Original assignee: XIANGYANG AUTOMOBILE BEARING CO LTD
Current assignee: XIANGYANG AUTOMOBILE BEARING CO LTD
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2022-01-28
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a roller cage assembly bearing, comprising: a retainer and a cylindrical roller. The retainer comprises flanges, an inner beam and an outer beam, wherein the flanges are positioned on two axial sides of the retainer, the inner beam is connected with the flanges on the two sides, the outer beam is positioned in the middle of the retainer in the axial direction, the diameter of the outer beam is larger than that of the inner beam, and the flanges are bent from the inner beam and are opened outwards in the radial direction on the two axial sides of the retainer; the cylindrical roller is arranged between the inner beam and the outer beam to rotate. When the roller retainer assembly bearing is used for using two bearings in parallel, the roller retainer assembly bearing has better precision reliability and running stability and longer service life.

Description

Roller retainer assembly bearing

Technical Field

The utility model relates to the technical field of rolling bearings, in particular to a roller retainer assembly bearing for an automobile gearbox.

Background

The structural layout and the size of the flanges at the two sides of the retainer and the inner and outer beams of the conventional roller retainer assembly bearing do not fully consider the mutual influence of the two assembly bearings when the two assembly bearings are used in parallel, so that the running stability and the precision reliability of the two bearings are poor in the actual parallel use, and the service life of the bearings can be shortened.

Disclosure of Invention

In view of the above-mentioned deficiencies, the present invention provides a novel roller cage assembly bearing. Compared with the conventional roller retainer assembly bearing, the bearing has better parallel use characteristics, better running stability and precision reliability.

The technical solution of the utility model is as follows: a roller cage assembly bearing comprising: a cage, a cylindrical roller; the retainer consists of a flange, an inner beam and an outer beam; the method is characterized in that: the outer beam is positioned in the axial middle of the retainer, the inner beams are positioned on two axial sides of the retainer, and the diameter of the outer beam is larger than that of the inner beam; the inner beam is connected with the flanges, and the flanges are outwards bent from the radial opening of the inner beam at two axial sides of the retainer; the cylindrical roller is arranged between the inner beam and the outer beam to rotate.

The inner beams positioned at the two axial sides of the retainer in the technical scheme of the utility model have the diameter smaller than that of the central line of the roller, the diameter of the middle outer beam is larger than that of the central line, the radial distance from the central line of the inner beam is smaller than that of the outer beam, and the inner beam plays a role in guiding when the bearing rotates, so that the structure improves the running stability of the bearing during working.

Because the flanges of the retainer are bent from the inner beam at two axial sides and are radially opened outwards, the outer diameters of the flanges can be radially increased as much as possible in the processing process, namely, the radial distance between the flanges and the outer diameter of the roller is reduced, the area of the end surface at the outer side of the flanges is increased, and the processing form and position tolerance of the end surface at the outer side is controlled, so that when two bearings run in parallel, the contact precision and the synchronism between the end surfaces at the outer side of the two bearings are improved, the mutual adverse effect between the two bearings is reduced, and the running reliability of the bearings is improved. The distance between the outer diameter of the flange and the outer diameter of the roller in the technical scheme can be 0.2-0.3 mm at minimum.

In addition, the distance between the end surface of the inner side of the flange and the end surface of the adjacent roller can be controlled in the machining process, the distance is reduced, the deflection moment between the roller and the retainer can be reduced, meanwhile, the length of the roller can be relatively increased, the useless space is reduced, and the service life of the bearing is prolonged. The minimum distance between the end surface of the inner side of the flange and the end surface of the roller in the technical scheme of the utility model can reach 0.5-0.8 mm.

The utility model has the beneficial effects that: the roller cage assembly bearing of the present structure. The structural layout and the size of the flanges at the two sides of the retainer and the inner and outer beams consider the mutual influence of the two component bearings when the two component bearings are used together in parallel, the running stability and the precision reliability of the two bearings can be improved in the actual parallel use, and the service life of the bearings is prolonged.

The utility model is mainly used for the supporting part of the transmission shaft of the transmission case of the commercial vehicle.

Drawings

FIG. 1 is a schematic view of a roller cage assembly bearing configuration of the present invention.

FIG. 2 is a schematic view of the roller cage assembly bearing of the present invention in operation.

In the figure: 1. a holder; 2. a cylindrical roller; 3. an inner beam; 4. an outer beam; 5. two side flanges; 7. a centerline; 8. spacing; 9. a window aperture.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in figure 1, one embodiment of the roller retainer assembly bearing of the utility model comprises a retainer 1 and cylindrical rollers 2, wherein the retainer 1 consists of two side flanges 5, an inner beam 3 and an outer beam 4. The outer beam 4 is located in the axial middle of the retainer 1, the inner beams 3 are located on two axial sides of the retainer 1, and the diameter of the outer beam 4 is larger than that of the inner beams 3. The inner beam 3 is connected with the flanges 5 at two sides, and the flanges 5 at two sides are outwards bent from the inner beam 3 at two axial sides of the retainer 1 and radially open. The cylindrical rollers 2 are arranged to rotate between an inner beam 3 and an outer beam 4. The diameters of the inner beams 3 on two sides are smaller than that of the central line 7, the diameter of the middle outer beam 4 is larger than that of the central line 7, the distance between the inner beam 3 and the central line 7 is smaller than that between the outer beams 4, and the inner beams 3 play a role in guiding when the bearing rotates. The distance 6 between the outer diameter of the flanges 5 at two sides and the outer diameter of the roller can be 0.2-0.3 mm at least. The distance 8 between the end surfaces of the inner sides of the flanges 5 at the two sides and the end surface of the roller can reach 0.5-0.8 mm at minimum.

The installation process comprises the following steps: as shown in figure 1, the axial length dimension of the window hole 9 on the retainer 1 is slightly larger than the length of the cylindrical roller, the width dimension of the window hole is slightly smaller than the diameter of the roller, the cylindrical roller 2 is aligned and placed on the window hole 9 of the retainer 1, the roller is pressed by manpower or mechanical force, and the cylindrical roller 2 enters between the inner beam 3 and the outer beam 4 of the retainer 1 by utilizing the elastic deformation of the window hole 9. I.e. complete assembly of one roller cage assembly bearing. In actual use, two roller cage assembly bearings are used side-by-side, as shown in FIG. 2. The present invention has better side-by-side service characteristics than the conventional roller cage assembly bearings of today.

Claims

1. A roller cage assembly bearing comprising: a retainer (1) and a cylindrical roller (2); the retainer (1) consists of a flange (5), an inner beam (3) and an outer beam (4); the method is characterized in that: the outer beam (4) is positioned in the axial middle of the retainer (1), the inner beams (3) are positioned on two axial sides of the retainer (1), and the diameter of the outer beam (4) is larger than that of the inner beams (3); the inner beam (3) is connected with the flanges (5), and the flanges (5) are bent outwards from the inner beam (3) at two axial sides of the retainer (1) along the radial direction; the cylindrical roller (2) is arranged between the inner beam (3) and the outer beam (4) to rotate.

2. The roller cage assembly bearing of claim 1, wherein: the diameter of the inner beams (3) on the two sides is smaller than that of the central line (7), the diameter of the middle outer beam (4) is larger than that of the central line (7), the distance between the inner beam (3) and the central line (7) is smaller than that of the outer beam (4), and the inner beam (3) plays a role in guiding when the bearing rotates.

3. The roller cage assembly bearing of claim 1, wherein: the distance (6) between the outer diameter of the flange (5) and the outer diameter of the roller can reach 0.2mm at least.

4. The roller cage assembly bearing of claim 1, wherein: the minimum distance (8) between the end surface of the inner side of the flange (5) and the end surface of the roller can reach 0.5 mm.