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我局近几年来试验并逐步推广小口径金刚石钻进，到一九七九年已开动小口径钻机二十五台。在推广小口径金刚石钻进的过程中，发现XU-600-3型钻机配用的4105型柴油机与该钻进方法不大适应。主要表现为动力不足，开不起高速。为此，从一九七六年开始，我们逐步在机台上采用了电力驱动。电力来源于柴油发电车或电网。柴油发电车为4135/80马力-50千瓦。XU-600-3型钻机配30千瓦电动机；BW250/50泥浆泵配13千瓦电动机。到目前为止，我局所有小口径金刚石钻机全都配用了柴油发电车。
In recent years, our bureau has experimented with and gradually promoted the drilling of small diameter diamonds. By 1979, 25 small-diameter drilling rigs have been started. During the promotion of small diameter diamond drilling, it was found that the 4105 diesel engine equipped with XU-600-3 drilling rig was not suitable for this drilling method. Mainly manifested as lack of motivation, can not afford to open high-speed. To this end, since 1976, we have gradually adopted electric drive on the machine. Electricity comes from diesel power stations or the grid. Diesel power for the 4135/80 horsepower -50 kilowatts. XU-600-3 drilling rig with 30 kW motor; BW250 / 50 mud pump with 13 kW motor. So far, all our SMALL DIAMETER diamond rigs have been equipped with diesel-powered vehicles.