Cone Crusher Fault Prediction Method

Abstract

The invention belongs to the field of technical detection, and in particular relates to a method for predicting the failure of a cone crusher. It is characterized in that the method of fuzzy reasoning is used to increase the anti-interference ability of the fault prediction system, effectively reducing the probability of false alarm and the rate of missed detection; in the fuzzification process, the membership function chooses the combination of triangular membership function and trapezoidal membership function It avoids the unreasonable division of the domain of discourse caused by the simple use of the triangular membership function; the evidence theory is used to fuse the reasoning results so that the diagnosis results can make full use of the information of the crusher and the fault prediction results are more reliable; the classification of the membership degree is 1 or 0 It does not participate in the fusion of evidence theory, avoiding the evidence conflict of evidence theory, thus ensuring the feasibility of the algorithm; introducing the trend information of historical data as auxiliary diagnosis, further reducing the missed detection rate of fault prediction and improving the accuracy of fault prediction The overall level.

Description

technical field [0001] The invention belongs to the technical field of fault diagnosis and detection, and in particular relates to a fault prediction method for a cone crusher. Background technique [0002] Cone crushers are widely used in mining, smelting, building materials, highways, water conservancy and other departments, especially occupy a key position in the medium and fine crushing of mine rocks. The failure rate of the cone crusher is high, and its failure prediction and early warning are the key issues to be solved urgently in the management of mining equipment. At present, the research results of fault prediction of cone crusher are not rich, and most of the research is still based on the experience of experts and staff. [0003] The traditional method of setting the alarm threshold has weak anti-interference ability. For the mine crushing system, false alarms or untimely alarms may occur when the mine crushing system is disturbed, which will affect production o...

AI Technical Summary

Problems solved by technology

[0003] The traditional method of setting the alarm threshold has weak anti-interference ability. For the mine crushing system, false alarms or untimely alarms may occur when the mine crushing system is disturbed, which will affect production or deepen the fault, and bring losses to the enterprise.

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