Cone crusher fault pre-judgment method

Abstract

The invention belongs to the field of technical detection, and particularly relates to a cone crusher fault pre-judgment method. The method is characterized in that a fuzzy reasoning method is adopted, so that the anti-interference capability of a fault pre-judgment system is improved, and the false alarm probability and the omission ratio are effectively reduced; in the fuzzification process, a triangular membership function and trapezoidal membership function combination mode is selected as a membership function, so that the phenomenon of unreasonable discourse domain division due to pure using of the triangular membership function is avoided; inference results are fused by adopting an evidence theory, so that crusher information is fully utilized by a diagnosis result, and a fault pre-judgment result is more reliable; classification with the membership degree of 1 or 0 does not participate in evidence theory fusion, evidence conflicts of evidence theories are avoided, and thereforethe feasibility of algorithms is guaranteed; and trend information of historical data is introduced as auxiliary diagnosis, the omission ratio of fault pre-judgment is further reduced, and the overalllevel of fault pre-judgment is improved.

Description

technical field [0001] The invention belongs to the technical field of fault diagnosis and detection, in particular 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 in the medium and fine crushing of mine rocks. The failure rate of cone crusher is high, and its failure prediction and early warning are the key problems to be solved urgently in mining equipment management. At present, the research results of failure prediction of cone crushers 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, when it is disturbed, there may be false alarms or untimely alarms, which will affect production or deepen the degree of failure, which will bring losses to...

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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