Method for assembling outer ring axial broken thin-wall bearing

Abstract

The invention discloses a method for assembling an outer ring axial broken thin-wall bearing, which comprises the following steps of: making a back-up ring (1), a taper guide block (2), a steel ball tray (3) and a pressing block (8); expanding an outer ring (4) by using the taper guide block and placing the outer ring on the upper end of the back-up ring; assembling the steel ball tray assembled with a holder (7), a steel ball (6) and an inner ring (5) into a recess on the upper end of the taper guide block; placing the pressing block on the inner ring; and applying an axial force F onto the pressing block to complete the assembling of the outer ring axial broken thin-wall bearing. Under the action of the instant axial force F of the pressing block, the deformation influences on the outer ring are very small so that the assembling and using performance of the thin-wall bearing is not influenced, assembling efficiency is high, and the assembling production of the mass axial broken thin-wall bearings can be met.

Description

technical field [0001] The invention belongs to the technical field of bearing assembly, in particular to an assembly method of a thin-walled bearing with axially fractured outer ring. Background technique [0002] The outer ring of thin-walled bearings such as Figure 1-2 As shown, the outer circle of the outer ring is cut with a groove along the axial direction, and the outer ring is broken axially along the tangential direction. [0003] For thin-walled bearings whose outer ring is axially fractured, the traditional assembly method generally needs to expand the fractured part of the outer ring first, and then install several steel balls into the raceways of the outer ring and inner ring one by one. Although this assembly method is simple and practical, it requires assembly workers to have high assembly skills. In addition, the quality of the assembled thin-walled bearings may have the following deficiencies: [0004] 1. The fracture of the thin-walled outer ring swells ...

AI Technical Summary

Problems solved by technology

[0004] 1. The fracture of the thin-walled outer ring swells open for a long time, and the deformation generated after the steel ball is filled is not easy to recover;

[0005] 2. During the assembly process, the steel ball is easily scratched at the fracture;

[0006] 3. During the assembly process, the iron filings falling off at the fracture are easy to enter the bearing channel, affecting the performance of the thin-walled bearing;

[0007] 4. After assembly, the technical parameters of thin-walled bearings fluctuate widely, which will also affect the performance of thin-walled bearings;

[0008] 5. The assembly efficiency is low and cannot meet the needs of mass production

[0009] In the actual production process, there are high requirements for the dimensional tolerance, shape tolerance, clearance and rotation flexibility of the finished thin-walled bearing, so the above-mentioned assembly method can no longer meet the assembly technology of the thin-walled bearing with axial fracture of the outer ring. Require

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