| 采煤机阀组异常故障机理分析 |
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| 引用本文： | 张晓永.采煤机阀组异常故障机理分析[J].煤矿机械,2022(2). |
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| 作者姓名： | 张晓永 |
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| 作者单位： | 中煤科工集团上海有限公司;天地上海采掘装备科技有限公司 |
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| 基金项目： | 天地科技股份有限公司重点项目(2020-TD-ZD016)。 |
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| 摘 要： | 根据采煤机出现的故障现象,基于液压系统原理,采用试验的方式找到了液压系统故障部件。通过拆解溢流阀并根据故障现象复原了液压系统的故障,确定了液压系统异常故障机理。通过改进溢流阀的结构设计,提高了阀组的可靠性,减少了采煤机的故障点,提高了采煤机的开机率。
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| 关 键 词： | 采煤机 阀组 溢流阀 故障 油压 |
Analysis of Abnormal Fault Mechanism of Shearer Valve Group |
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| Zhang Xiaoyong.Analysis of Abnormal Fault Mechanism of Shearer Valve Group[J].Coal Mine Machinery,2022(2). |
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| Authors: | Zhang Xiaoyong |
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| Affiliation: | (Shanghai Co.,Ltd.,China Coal Technology and Engineering Group,Shanghai 200030,China;Tiandi Shanghai Mining Equipment Technology Co.,Ltd.,Shanghai 201402,China) |
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| Abstract: | According to the fault phenomenon of shearer, based on the principle of hydraulic system,the fault parts of the hydraulic system was found by the test method. By disassembling the relief valve and arccording to the fault phenomenon,the fault of the hydraulic system was restored, the abnormal fault mechanism of the hydraulic system was determined. By improving the structural design of the relief valve, the reliability of the valve group was improved, the fault points of the shearer were reduced and the operating rate of the shearer was improved. |
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| Keywords: | shearer valve group relief valve fault oil pressure |
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