塔式多绳摩擦提升机振动故障源的模糊综合评判

根据塔式多绳摩擦提升机的运行特点,分析了振动原因,建立了振动故障源的模糊综合评判模型.结合对某矿井塔式多绳摩擦提升系统的振动测试结果,应用该模型对系统振动故障源进行了诊断和评判,对各种振动原因引起的系统故障的可能性给出了定量评价.实践表明,应用文中建立的模糊综合评判模型提高了塔式多绳摩擦提升机故障源诊断的客观性和准确性,为有效治理提升机的超限振动提供了可靠的理论依据,对当前老矿井改造具有一定的指导意义.

A FUZZY SYNTHETIC JUDGE ON VIBRATION FAULT SOURCES OF TOWER-TYPE MULTI-ROPE FRICTION WINDER

The present paper aims to discuss the vibrating fault caused by the vibration by means of the vibration test analysis in the light of a living example. Considering the running characteristics of a tower-type multi-rope friction winder in the mining work, the author has established a model of fuzzy synthetic judge on the vibration fault-sources analysis based on fuzzy theory. As is known, the tower-type multi-rope friction winder is generally used as the critical equipment of mining practice, which carries the coal of mine cavity to the underground and relates it with the ground surface. The vibration sources of the tower-type multi-rope friction winder of a specific mine are usually tested by using the synthetic fuzzy judge model with the measurement of fuzzy symptoms done by finding the fuzzy relation matrix. It is shown that on the condition that the percentage of effect of the fault causes is known, that is, the possibility of fault caused by the defective coupling of flexible coupling accounts for 15% while the improper support style of decelerator system accounts for 19%, by defective synchronous running of flexible shafts accounts for 16% in decelerator, by defective manufacture and operation of gears accounts for 25%, by default of bearings accounts for 12%, by factors of system resonance ( the winder resonance and tower resonance ) accounts for 10%, and by factors of winder running style (such as frequent starting, braking, alternating motion etc.) accounts for 3%. Thus the objectivity and accuracy of the fault judge can be improved on a tower-type multi-rope friction winder. The necessary foundation can be provided for the vibration controlling of the winder. The trial use of the model established proves to be helpful in transforming old mines and improving productivity.