由于井下生产条件较为复杂,设备在恶劣环境下作业极易磨损,特别是设备中关键零部件磨损和损坏直接导致整机的瘫痪或报废,这样不仅给生产经营企业造成巨大的经济损失和资源浪费,而且对煤矿安全生产也十分不利。液压支架是煤矿井下安全作业的必要装备,大型矿井 Due to the complicated production conditions in the well, the equipment is very easy to wear and tear in the harsh environment. Especially the wear and damage of the key components in the equipment lead directly to the paralysis or scrapping of the complete machine. This not only causes enormous economic losses and waste of resources to the production and operation enterprises , But also very adverse to the safety of coal mines. Hydraulic support is a necessary equipment for coal mine safety operations, large-scale mine