浅论煤矿综采机的故障引发的问题及维修

煤矿综采机械是保证煤炭生产的关键设备。然而,由于设备在生产中常因各种失效而引起故障,给煤炭生产企业带来了经济损失。因此,进行设备失效分析,查找故障模式,分析故障规律、原因及其影响程度,采取有效的预防措施来提高其可靠性,是当前提高煤炭产量的重要途径之一。目前,我国在综采机械失效分析方面已做了大量工作,但只注意个别零部件的失效分析,还应从总体上将其作为一门系统工程科学来研究。

Comprehensive evaluation and study on material consumption of coal machinery

Based on fuzzy mathematics, comprehensive comparisons among four kinds of materials for manufacturing shearer bits were made in six aspects which are respec- tively hardness, tensile strength, impact toughness, relative wearability, relative lifespan and relative cost. Material 4 is preferred to be the targeted choice for manufacturing bits with superior comprehensive and economic performances.