CN212389654U

CN212389654U - Improved thrust self-aligning roller bearing

Info

Publication number: CN212389654U
Application number: CN202021239506.5U
Authority: CN
Inventors: 纪云巧; 李鑫辉; 郭玉飞; 高俊聪; 李玉泉; 高崇波; 崔传荣; 杜姗珊; 刘学; 吴欢
Original assignee: Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd
Current assignee: DALIAN WAZHOU GROUP BEARING EQUIPMENT MAKING CO LTD
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-01-22
Anticipated expiration: 2030-06-30

Abstract

The utility model belongs to the technical field of the bearing equipment is made, concretely relates to modified thrust self-aligning roller bearing, including seat circle, pedestal ring, retainer subassembly and roller, retainer subassembly keeps the roller between seat circle external diameter and pedestal ring internal diameter, retainer subassembly includes first packing ring and second packing ring, is fixed with a plurality of pillars between first packing ring and the second packing ring, all overlaps on every pillar to be equipped with a roller, the both sides of pedestal ring internal diameter are provided with the flange, the inboard surface of flange and the end face contact of roller. The axial ring roller bearing has the advantages that the flange of the axial ring is in contact with the end face of the roller, radial leaping of the bearing after installation is effectively avoided, meanwhile, the number of the rollers is increased compared with that of an entity retainer, and the axial bearing capacity is obviously improved.

Description

Improved thrust self-aligning roller bearing

Technical Field

The utility model belongs to the technical field of the bearing equipment is made, concretely relates to be applied to wide-angle heavy load thrust aligning roller bearing in fields such as large-scale lifting hook, extruding machine, pre-heater.

Background

At present, a thrust self-aligning roller bearing mostly adopts a structural form of combining a shaft ring with a flange, a retainer, a roller and a seat ring. However, in some situations where the axial force is too great, the collar flange may jam, and the axial load capacity may be too small, and the collar flange may be removed. However, in the actual operation process, because the shaft ring and the seat ring are not provided with flanges, the assembly consisting of the roller, the pillar and the gasket is not limited in the radial direction, and the phenomenon that the assembly runs out of the ring occurs, so that the bearing cannot operate well under the heavy load condition, and the working condition requirement cannot be met.

Disclosure of Invention

According to the defects existing in the prior art, the utility model aims to provide a bearing capacity is high, good big angle heavy load thrust self-aligning roller bearing of operation.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a modified thrust self-aligning roller bearing, includes seat circle, shaft collar, cage subassembly and roller, the cage subassembly keeps the roller between seat circle external diameter and shaft collar internal diameter, the cage subassembly includes first packing ring and second packing ring, is fixed with a plurality of pillars between first packing ring and the second packing ring, all overlaps on every pillar to be equipped with a roller, the both sides of shaft collar internal diameter are provided with the flange, the terminal surface contact of the inboard surface of flange and roller.

Further, the contact angle of the self-aligning roller bearing is 60-75 degrees.

Preferably, the contact angle of the self-aligning roller bearing is 72 °.

Furthermore, the roller is a hollow pillar spherical roller, a hollow through hole for sleeving the pillar is formed in the center of the roller, one end face of the two end faces of the roller is a spherical base face, the other end face of the roller is a flat end face, and the inner side surface of the rib is in contact with the spherical base face of the roller.

Furthermore, the flanges are straight flanges, and the inner side surfaces of the flanges are tangent to the spherical base surface of the roller.

Further, the first washer and the second washer are in clearance fit with the end faces of the roller respectively.

Further, the first washer is in threaded connection with the support post, and the second washer is welded with the support post.

Further, the first gasket is arranged on the outer side of the bearing, and the end face of the flange is in clearance fit with the first gasket.

The utility model has the advantages that: the axial ring roller bearing has the advantages that the flange of the axial ring is in contact with the end face of the roller, radial leaping of the bearing after installation is effectively avoided, meanwhile, the number of the rollers is increased compared with that of an entity retainer, and the axial bearing capacity is obviously improved.

Drawings

FIG. 1 is a cross-sectional view of a self-aligning thrust roller bearing;

FIG. 2 is a schematic view of a roller configuration;

FIG. 3 is a schematic view of the construction of the collar;

FIG. 4 is a perspective view of the bearing;

in the figure: 1. race, 2, race, 3, roller, 4, strut, 5, first washer, 6, second washer, 7, flange, 8, roller ball base, 9, roller flat end face, alpha, contact angle.

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 the accompanying drawings 1-4, an improved self-aligning thrust roller bearing comprises a seat ring 1, a shaft ring 2, a retainer assembly and rollers 3, wherein the retainer assembly keeps the rollers between the outer diameter of the seat ring and the inner diameter of the shaft ring, the retainer assembly comprises a first gasket 5 and a second gasket 6, a plurality of supporting columns 4 are fixed between the first gasket 5 and the second gasket 6, each supporting column 4 is sleeved with one roller 3, blocking edges 7 are arranged on two sides of the inner diameter of the shaft ring, and the inner side surfaces of the blocking edges 7 are in contact with the end faces of the rollers 3. The shaft ring 2 is provided with a flange 7, so that the roller 3 can be limited in a raceway, the roller is prevented from moving, and the clearance fit between the first gasket 5 and the second gasket 6 and the seat ring 1 and the shaft ring 2 is ensured.

Furthermore, the contact angle alpha of the self-aligning roller bearing is 72 degrees, the contact angle of the bearing is set to be a large contact angle, and compared with the traditional design of 45-degree contact angle, the bearing capacity of the bearing is obviously improved.

Further, the roller is a hollow pillar spherical roller, a hollow through hole for sleeving the pillar 4 is formed in the center of the roller, one end face of the two end faces of the roller is a spherical base face 8, the other end face of the roller is a flat end face 9, the rib 7 is a straight rib, and the inner side surface of the rib 7 is tangent to the spherical base face 8 of the roller.

Based on the technical scheme, the utility model discloses in adopt hollow pillar roller, the roller both ends adopt asymmetric structure, and wherein one end adopts the plain end face 9, and the other end adopts the sphere base face 8. The sphere base surface 8 is tangent to the straight flange 7 of the shaft ring, so that the problem that the flange 7 is inflexible in rotation is solved. Meanwhile, the hollow strut roller bearing is adopted, the number of rollers is increased compared with that of a solid retainer, and the axial bearing capacity is obviously improved. Meanwhile, the shaft ring 2 adopts a structure with a flange, the design of arc flanges is abandoned by the flanges, the flanges are changed into straight flanges and are tangent to the ball base surface of the roller, and the radial displacement after the bearing is installed is effectively avoided while the operation condition is improved.

Further, the first washer 5 is in clearance fit with the ball base surface 8 of the roller, and the second washer 6 is in clearance fit with the flat end surface 9 of the roller. The first washer 5 and the second washer 6 do not interfere with the rolling of the rollers, affecting the bearing operation.

One end of the strut 4 is provided with threads, the first gasket 5 is in threaded connection with one end of the strut 4, and the second gasket 6 is welded with the other end of the strut 4. The threaded connection avoids the gasket from being separated from the support 4, so that the bearing forms a self-locking state in the running process.

Further, the end surface of the rib 7 is in clearance fit with the first gasket 5.

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. An improved self-aligning thrust roller bearing, characterized in that: including seat circle, shaft collar, cage subassembly and roller, the cage subassembly keeps the roller between seat circle external diameter and shaft collar internal diameter, the cage subassembly includes first packing ring and second packing ring, is fixed with a plurality of pillars between first packing ring and the second packing ring, all overlaps on every pillar to be equipped with a roller, the both sides of shaft collar internal diameter are provided with the flange, the inboard surface of flange and the end face contact of roller.

2. An improved self-aligning thrust roller bearing according to claim 1, wherein: the contact angle of the self-aligning roller bearing is 60-75 degrees.

3. An improved self-aligning thrust roller bearing according to claim 2, wherein: the contact angle of the self-aligning roller bearing is 72 degrees.

4. An improved self-aligning thrust roller bearing according to claim 1, wherein: the roller is a hollow pillar spherical roller, a hollow through hole for sleeving the pillar is formed in the center of the roller, one end face of the two end faces of the roller is a spherical base face, the other end face of the roller is a flat end face, and the inner side surface of the flange is in contact with the spherical base face of the roller.

5. An improved self-aligning thrust roller bearing according to claim 4, wherein: the flange is a straight flange, and the inner side surface of the flange is tangent to the spherical base surface of the roller.

6. An improved self-aligning thrust roller bearing according to claim 1 or 4, wherein: the first washer and the second washer are in clearance fit with the end faces of the rollers respectively.

7. An improved self-aligning thrust roller bearing according to claim 1, wherein: the first washer is in threaded connection with the support column, and the second washer is welded with the support column.