Method for assembling a tapered roller bearing, and assembly unit for this purpose

Patent metadata

Field	Value
Publication number	US-11415178-B2
Application number	US-202117397127-A
Country	US
Kind code	B2
Filing date	Aug 9, 2021
Priority date	Sep 2, 2020
Publication date	Aug 16, 2022
Grant date	Aug 16, 2022

Abstract

A method for assembling a tapered roller bearing includes providing a first rolled-on surface element having a raceway and an axial end surface and mounting a plurality of tapered rollers separated by a plurality of bearing cage segments or by a plurality of roller spacers on the raceway, where each of the plurality of tapered rollers has a frustoconical rolling surface and a circular end surface meeting at a junction. Also placing at least one assembly ring around the plurality of tapered rollers to hold the plurality of tapered rollers against the first rolled-on surface element, and moving a second rolled-on surface element coaxially toward the first rolled-on surface element such that a portion of the second rolled-on surface element contacts the at least one assembly ring and pushes the at least one assembly ring axially off the plurality of tapered rollers.

First claim

What is claimed is:

1. A method for assembling a tapered roller bearing, comprising:
providing a first rolled-on surface element having a raceway and an axial end surface,
mounting a plurality of tapered rollers separated by a plurality of bearing cage segments or by a plurality of roller spacers on the raceway, each of the plurality of tapered rollers having a frustoconical rolling surface and a circular end surface meeting the frustoconical rolling surface at a junction,
after mounting the plurality of tapered rollers on the raceway, placing at least one assembly ring around the plurality of tapered rollers to hold the plurality of tapered rollers against the first rolled-on surface element, and
moving the first rolled-on surface element and/or a second rolled-on surface element coaxially and vertically toward each other such that a portion of the second rolled-on surface element contacts the at least one assembly ring and pushes the at least one assembly ring axially off the plurality of tapered rollers.

2. The method according to claim 1 ,
including continuing to move the first rolled-on surface element and/or the second rolled-on surface element axially toward each other until a raceway of the second rolled-on surface element contacts the plurality of tapered rollers.

3. The method according to claim 2 ,
wherein the at least one assembly ring overlies the junction and includes a first portion in contact with the frustoconical rolling surface and a second portion in contact with the circular end surface.

4. The method according to claim 3 ,
wherein the first rolled-on surface element includes a flange at an end of the raceway, and
wherein mounting the plurality of tapered rollers on the raceway comprises mounting the circular end surfaces of the rollers against the flange.

5. The method according to claim 4 ,
wherein the at least one ring comprises a split inner ring and an outer ring separate from the inner ring, the outer ring being configured to secure the split inner ring to the plurality of tapered rollers.

6. The method according to claim 5 ,
wherein the split inner ring is formed from an elastomer or a plastic.

7. The method according to claim 6 ,
wherein the outer ring comprises a tape.

8. The method according to claim 5 ,
wherein the plurality of bearing cage segments or the plurality of roller spacers are formed from polyetheretherketone (PEEK) reinforced with glass or carbon fibers, and
wherein the plurality of bearing cage segments are not in mutual contact or the plurality of roller spacers are not in mutual contact.

9. The method according to claim 5 ,
wherein the first rolled-on surface element is mounted on a shaft before the plurality of tapered rollers are placed on the raceway of the first rolled-on surface element, and
including cutting the at least one ring after the at least one ring has been pushed off the plurality of tapered rollers to remove the at least one ring from around the shaft.

10. The method according to claim 5 ,
wherein the first rolled-on surface element is mounted on a shaft before the plurality of tapered rollers are placed on the raceway of the first rolled-on surface element, and
including cutting the outer ring after the at least one ring has been pushed off the plurality of tapered rollers and spreading the split inner ring to remove the split inner ring from around the shaft.

11. The method according to claim 10 ,
wherein the shaft is configured as a main shaft bearing of a wind turbine, and
wherein an inner diameter of the first rolled-on surface element is greater than or equal to one meter.

12. The method according to claim 2 ,
including placing the axial end surface on a horizontal support surface before mounting the plurality of tapered rollers on the raceway of the first rolled-on surface element.

13. The method according to claim 1 ,
wherein the first rolled-on surface element is a bearing inner ring and the second rolled-on surface element is a bearing outer ring.

14. The method according to claim 1 ,
wherein placing the at least one assembly ring around the plurality of tapered rollers comprises encircling the plurality of rollers with the at least one ring assembly.

15. An assembly unit comprising:
a first rolled-on surface element having a raceway and an axial end surface,
a plurality of tapered rollers separated by a plurality of bearing cage segments or by a plurality of roller spacers mounted on the raceway, each of the plurality of tapered rollers having a frustoconical rolling surface and a circular end surface meeting the frustoconical rolling surface at an annular junction, and
at least one assembly ring around the plurality of tapered rollers and holding the plurality of tapered rollers against the first rolled-on surface element,
wherein the at least one assembly ring is configured such that the at least one assembly ring will be pushed axially off the plurality of tapered rollers in response to a raceway of a second rolled-on surface element being moved downwardly and coaxially into contact with the plurality of rollers.

16. The assembly unit according to claim 15 ,
including the second rolled-on surface element.

17. The assembly unit according to claim 15 ,
wherein the plurality of tapered rollers are separated by a plurality of bearing cage segments that are not in mutual contact or by a plurality of roller spacers that are not in mutual contact.

18. The assembly unit according to claim 15 ,
wherein the first rolled-on surface element includes a flange, and where the circular end surfaces of the plurality of tapered rollers contact the flange.

19. The assembly unit according to claim 15 ,
wherein the first rolled-on surface element is a bearing inner ring and the second rolled-on surface element is a bearing outer ring, and
wherein the at least one assembly ring encircles the plurality of tapered rollers.

20. The assembly according to claim 15 ,
wherein the at least one assembly ring comprises a split inner ring and an outer ring separate from the split inner ring, the outer ring securing the split inner ring to the plurality of tapered rollers.

Assignees

• Skf Ab

Inventors

• Fritz Dominik
• Fritze Denny
• Reugels Michael

Classifications

• F16C2300/14

  Large applications, e.g. bearings having an inner diameter exceeding 500 mm · CPC title

• F16C43/06

  Placing rolling bodies in cages or bearings · CPC title

• F16C2208/70

  Polyesters, e.g. polyethylene-terephthlate [PET], polybutylene-terephthlate [PBT] · CPC title

• F16C2360/31

  Wind motors · CPC title

• F16C43/04 Primary

  Assembling rolling-contact bearings · CPC title