Bearing Roller Cage Assembly Using Slotted Rotational Drive
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for mounting rollers in retaining cages for rolling bearings lack reliable rotational attachment, leading to potential relative movement issues during roller insertion, which can hinder proper assembly and affect the mechanical strength and size constraints of the cage.
Innovation Solution
The method involves forming slots in at least one crown of the cage, allowing for rotational drive using motorized claws engaged in these slots, combined with an external structure projecting radially to guide rollers into cells, ensuring reliable and efficient mounting while maintaining mechanical integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cage is mounted on a motorized rotating drive without slots, then the drive mechanism is simple, but the cage attachment is unreliable and allows relative movement during roller insertion
Solution Approach 1:
The cage structure is segmented by adding slots in the crowns that receive discrete motorized claws. This segmentation allows the drive mechanism to engage at specific points rather than requiring a complex continuous attachment system, improving reliability while maintaining simplicity.
Solution Approach 2:
Motorized claws act as an intermediary element between the motorized rotating drive and the cage. The claws engage with the slots in the cage crowns, providing a reliable attachment mechanism that prevents relative movement during roller insertion without requiring direct complex coupling between the drive and cage.
2Manufacturing precision
If external structures are added to bridges for roller guidance, then roller positioning accuracy improves, but the cage manufacturing complexity increases
Solution Approach 1:
The external structures on the bridges are designed and positioned during the initial cage manufacturing process. These structures preliminarily guide the rollers into their correct positions before the rollers are fully inserted, ensuring positioning accuracy while being integrated into the manufacturing process rather than added as separate complex components.
Data Source
Figure 1a~1b
Figure 2~4
Figure 5a~5c
AI summary
The invention relates to a method of mounting rollers (1) in a cage (2) for retaining said rollers in a bearing, the method comprising a cage (2) comprising two rings (3, 4) which are axially spaced and a plurality of bridges (5) extending between said rings so as to form, between two adjacent bridges (5) and a segment (3a, 4a) of each of said rings, a recess (6) in which a roller (1) is intended to be retained while being able to rotate about its own axis, said method comprising driving said cage in rotation and arranging said rollers in their respective recess (6) during said rotation, said method comprising forming slots (15) in at least one ring (3), the driving in rotation of the cage (2) being achieved by means of motorized claws (16) which are engaged in said slots.