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CKH－3型自动三凿岩机钻架车可在轨距750毫米的轨道上运行(见图)。这个机械的特点是,钻具在工作面的对准和钻进等所有工序均由司机在操纵台上操作液压控制器来进行。杰戈加尔矿山在普氏硬度10-14级的岩层中,使用CH-3型钻架车的工业试验样品掘进截面12-14米2的水平坑道时,取得了每小时由28到36米的效率。使用钻架车有可能在两个小时内钻完深达1．7-1．8米的28-30个炮眼。凿岩工的劳动效率比使用风动钻架钻进炮眼高3-4倍。在坚硬岩层中使用CH－3型钻架车掘进坑道时,一年能节约一万多卢布。今年,在凯什特姆机械制造厂成批生产钻架车。计划生产电动和风动可互换的两用钻架车。
The CKH-3 automatic three rock drill rigs can run on 750 mm gauge tracks (see photo). This machine is characterized by the fact that all processes of alignment and drilling of the drilling tool at the work surface are carried out by the driver operating the hydraulic controller on the control console. In the rock formations of the Geogaln mine, with a hardness of 10-14 in the Plains hardness scale, an industrial test sample of a CH-3 type rig car is used to excavate horizontal tunnels with a cross-section of 12 to 14 m 2, effectiveness. With a rig truck it is possible to drill 28-30 deep holes of 1.7-1.8 meters in two hours. The labor efficiency of a rock drill is 3-4 times higher than that of a drill using a pneumatic drilling rig. When using the CH-3 rigging car for tunneling in hard rock formations, you can save over 10,000 rubles a year. This year, batch production of drill rigs at Kestet Machinery Works. Plans to produce electric and pneumatic interchangeable dual-use carriages.