Detection apparatus of pre-tightening force of angular contact bearing and detection method thereof

Abstract

The invention discloses a detection apparatus of a pre-tightening force of an angular contact bearing and a detection method thereof. According to the apparatus, an axial dimension is adjusted to cooperate with a special-purpose measuring gauge for localization; a precise measuring tool is used for reading a pre-tightening spring to obtain a pressure value; and the compression value of the spring is adjusted to enable the pre-tightening force to reach a pressure range formulated by a bearing. During the assembling process, with the apparatus, the processing manufacturing cost and assembling adjusting cost of the equipment can be substantially reduced and quantitative detection and on-line adjustment of the pre-tightening force of the angular contact bearing can be realized, thereby substantially improving consistency and reliability of the equipment assembling and prolonging the service life of the bearing. The detection apparatus with low cost can be operated simply and conveniently and is easy to realize.

Description

technical field [0001] The invention is applied to the mechanical equipment manufacturing industry, and in particular relates to a detection device and a detection method for on-line detection and adjustment of the pretightening force of paired angular contact bearings. Background technique [0002] Bearings are an indispensable supporting device for mechanical equipment, and almost all rotary motion pairs of mechanical equipment must use bearings. Angular contact bearings are widely used in high-speed and heavy-duty slewing pairs, and are generally used in pairs (back-to-back or face-to-face). Appropriate preload is the key to ensure the normal operation of the bearing and maintain the normal life of the bearing. Too low and too high preload applied to the bearing will cause premature damage and failure of the bearing, thereby reducing the effective service life of the bearing. In the prior art, the dimensional tolerance of the mechanism is strictly controlled to ensure t...

AI Technical Summary

Problems solved by technology

It is necessary to ensure the strict machining accuracy of the parts and ensure that the pressure curves between the individual pre-tension springs are consistent and the same as the required force, which will inevitably increase the manufacturing cost; at the same time, the accumulated errors of the parts after assembly are different, resulting in the fact that the actual pre-tightening force of the bearing after assembly cannot meet the requirements. value, and the actual preload value after assembly is unknown, causing frequent damage to the bearing and affecting normal production

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