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针对国内液压支架普遍成本较高的问题,从设计源头着手,分析其原因可能是因为安全系数选择不合理导致,为探索某型液压支架在各种工况下的合理安全系数,分别应用有限元分析软件对该液压支架和国外对应型号的薄煤层支架分别进行了整机有限元分析。根据分析结果选择测点,根据煤炭行业标准MT312-92规定的矿用液压支架的试验检测标准,对整机进行了贴片应力测试。
In view of the high cost of domestic hydraulic supports generally, the reason for the analysis may be due to the unreasonable selection of safety factors. To explore the reasonable safety factor of a hydraulic support under various operating conditions, the finite element method The analysis software carries on the whole machine finite element analysis to the hydraulic support and the corresponding thin coal seam support in foreign countries respectively. According to the results of the analysis, the test points are selected. According to the testing standards of mining hydraulic supports specified in the coal industry standard MT312-92, the whole machine is tested for the stress of the chip.