液压抓斗故障诊断分析

Fault diagnosis of E. A. F's electro-hydraulic grab

针对电炉炼钢厂废钢PEINER电动液压抓斗频繁发生机械故障,严重影响了生产的顺利进行,经跟踪、分析,初步查明工作频繁、设计缺陷及维护不周是造成液压控制块和油泵损坏的直接原因。整治后,基本未再发生故障。

Mechanical breakdown of the PEINER electro-hydraulic scrap grab fur the electric are furnace (E. A. F.) at GISG occurred frequently, thus severely influencing the production. Inspection and examination showed that the breakdown was brought about by design defects and inappropriate maintenance of the grab, which resulted in a damage of the hydranlic control system and oil pump. By taking some measures to get rid of these faults, the breakdown never occurred again.