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告成矿煤巷掘进工作面位于突出危险区,传统的煤电钻不适于在煤巷掘进工作面使用。该矿于2007年引用了 ZQS-6.5/2.5型手持式气动钻机,其动力源为压缩空气。为此,矿煤巷队对工作面的压风管路进行了改造,将2英寸压风管改装成4英寸压风管,以满足掘进工作面风量的供应。由于空气中含有一定量的水分,经压缩后将随高压风一同进入钻机,通过长时间的使用,造成该钻机的传动部分出现
Gathering coal mine tunnel heading face is located in the prominent danger zone, the traditional coal electric drill is not suitable for coal roadway heading. The mine cited a ZQS-6.5 / 2.5 hand-held pneumatic drill in 2007 with a power source of compressed air. To this end, coal mine roadway pressure on the face of the pipeline has been transformed, the 2-inch air duct into 4-inch air duct pressure to meet the supply of air flow on the heading face. As the air contains a certain amount of water, after compression will be accompanied by high pressure wind into the rig, through the use of a long time, causing the transmission part of the rig appears