一、前言 采煤机械及部件的系统设计必须与其功能和它的所要使用的环境相适应。以充分发挥采煤工作面的潜力,提高机器设备的运行时间和工作的可靠性,使机器成本降低。这样,在一些工作面使用很少几台设备就可以满足生产需要。 I. INTRODUCTION The system design of coal mining machinery and components must be compatible with its function and its intended use. To give full play to the potential of coal mining face, improve the running time of machinery and equipment and the reliability of work, so that the cost of the machine is reduced. In this way, the production needs can be met with few work surfaces on a few working surfaces.