五、滚筒的转速和牵引速度螺旋滚筒的装煤性能,除了与滚筒的结构参数等有关外,与采煤机的转速和牵引速度也有重要的关系。对于一个在煤中工作的螺旋滚筒,在落煤过程中的特性是采落下来的煤不均匀地分布在滚筒的半个圆周上。图8所示为采煤过程中刀具的切削厚度和回采量的关系。切削厚度在刀具行程中从 Fifth, the drum speed and traction speed Helical drum of coal loading performance, in addition to the structural parameters of the drum and other related, with the shearer speed and traction speed also has an important relationship. For a spiral drum operating in coal, the characteristic during the coal fall is that the coal falling is unevenly distributed over half the circumference of the drum. Figure 8 shows the relationship between the thickness of the cutting tool and the recovery volume during coal mining. Cutting thickness from the tool stroke