Precision matched bearing rapid adjustment device and usage method thereof

Abstract

The present invention belongs to the precision machinery engineering technology field, and especially relates to a precision matched bearing rapid adjustment device and a usage method thereof. The device comprises a single-bearing special measuring device and a matched bearing preload special measuring device. The device adjusts a matched bearing and applies preload at two ends of the matched bearing to avoid the problem that one bearing preload force is too large and another bearing has the unloading phenomenon in the preload loading process so as to allow the obtained matched bearing preload force to be more accurate and reasonable; a precision motor and a precision ball screw are employed to perform applying of the preload force of the matched bearing, the precision is high, and the stability is good; and moreover, the process of error test in the current operation process is avoided, the generation cost is saved, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of precision mechanical engineering, and in particular relates to a precision assembled bearing assembly and adjustment device and a use method. Background technique [0002] The purpose of eliminating the clearance of the rotating shaft bearing is to improve the rotation accuracy and increase the rigidity of the bearing combination. For bearings with heavy loads and high rotational accuracy requirements, most of them are required to work in the state of no clearance or a small amount of interference, and preload should be carried out during installation to achieve work in the state of no clearance or a small amount of interference. The so-called preload is to generate and maintain an axial force in a certain way when installing the bearing to eliminate the clearance in the bearing and produce initial deformation at the contact between the rolling element and the inner and outer rings, and the preloaded bear...

AI Technical Summary

Problems solved by technology

Although such adjustment can achieve the precision of the shafting design, there are the following disadvantages and hidden dangers: (1) The inner and outer rings of the precision shafting and the bearing generally adopt an interference or micron-level transitional assembly relationship. During the disassembly and assembly of the bearing, it is necessary to Applying a certain external force will easily cause deformation and scratches of the bearing and supporting parts, which will affect its accuracy; (2) For angular contact bearings, due to the particularity of their structure, it is easy to separate the inner and outer rings of the bearing during disassembly and assembly by external force. Damage the bearing and cause losses; (3) During the shafting assembly process, this trial and error method of assembly and adjustment not only wastes time, but also the final applied preload is not necessarily the most appropriate, often too large, causing the bearing to heat up , affecting life

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