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我矿由瑞典阿特拉斯公司引进的ROC306型高风压地下潜孔钻机,一直是VCR采矿法采场凿岩的主要机械。在现场使用过程中,钻机暴露出不少问题,其中回转头高压风泄露是影响钻机凿岩效率有效发挥及回转头使用寿命的一个重要问题。经过研究分析,我们认为回转头主轴齿轮与高压进气管密封失效,是造成高压风大量泄漏的主要原因。该机回转头主轴齿轮与高压进气管是采用内装非平衡型金
The mine ROC306 high pressure underground DTH drilling rig imported from Sweden Atlas Company has been the main machinery of rock drilling in the VCR mining method. During the process of using in the field, many problems have been exposed in drilling rigs. Among them, the high-pressure wind leakage of the rotary heads is an important issue which affects the effective utilization of the drilling efficiency and the service life of the rotary heads. After research and analysis, we believe that the rotary head spindle gear and high pressure intake pipe failure, is caused by a large number of high pressure wind leakage main reason. The rotary head spindle gear and high-pressure intake pipe is built-in non-equilibrium type gold