| 摘要 |
Auger apparatus, such as a coal mining machine, adapted to utilize one or more augers of a diameter falling in a wide range. Apparatus is disclosed embodying three augers in which two side augers are driven from a power source, and an intermediate auger is located between, and driven from one of, the side augers; the means driving the side auger driving the intermediate auger is substantially free of the load of conveying mined material cut by the cutting head of the intermediate auger but has the load of driving two augers while the other side auger is free of the load of driving the intermediate auger but has substantially all of the load of conveying material cut by the cutting heads of such side auger and the intermediate auger. Apparatus is also disclosed having a cutting head assembly comprising three or more augers and longitudinal tie bars extending between adjacent augers and fixed to cross members rotatably supporting the cutting heads, to provide a rigid assembly. Also disclosed is apparatus having a main gearbox connected to adjustable or removable auxiliary gearboxes, so that the apparatus can be adapted to drive one or more augers from a main gearbox. Preferably, the auger power system embodies two clutches the first of which, preferably a mechanical clutch, is located between the engine and the transmission and is used to disconnect the transmission from the engine to permit shifting of transmission gears, and the other of which clutches, a non-mechanical clutch such as an air clutch, is located between the transmission and the auger or augers and is used as the operating clutch. Also disclosed is a pendant control system for a hoist for handling auger sections.
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