Bearing fault early warning method and device

Abstract

The invention provides a bearing fault early warning method and device, and the method comprises the steps: obtaining a plurality of first bearing temperatures of a bearing in a recent time period, and a first working state parameter combination, corresponding to each first bearing temperature, of rotating equipment, and enabling each first working state parameter combination to comprise at leastone first working parameter; Carrying out trend extraction on the plurality of first bearing temperatures to obtain a second bearing temperature, and carrying out trend extraction on each first working state parameter combination to obtain a second working state parameter combination, the second working state parameter combination comprising at least one second working parameter; Processing the second working state parameter combination by adopting a regression model of a convergence state, and outputting a third bearing temperature; And determining whether the bearing has a fault according tothe second bearing temperature and the third bearing temperature. According to the scheme, the fault symptom of the bearing can be early found, so that necessary guarantee measures can be taken in advance, and more serious faults are avoided.

Description

technical field [0001] The invention relates to the technical field of industrial production, in particular to a bearing fault early warning method and device. Background technique [0002] At present, rotating equipment is widely used in various industrial production fields such as energy and chemical industry. For example, typical rotating equipment includes the transmission and energy conversion system of wind power generation units, steam turbines and generators of thermal power generation units, pump and fan systems in large industrial processes, and so on. Wherein, these rotating devices are provided with bearings, and the bearings are one of the main components where failures occur. [0003] In the prior art, since the failure symptom of the bearing cannot be detected early, relevant maintenance can only be carried out after the failure of the bearing occurs. However, bearing failure can cause serious problems such as rotating equipment not working properly, which i...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, since the failure symptoms of the bearing cannot be detected early, the relevant maintenance can only be carried out after the failure of the bearing

However, bearing failure may cause serious problems such as rotating equipment not working properly, which in turn will increase the maintenance period and maintenance costs, etc.

Images