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在加速科学技术进步的基础上,增加井工采煤量必然要求滚筒式采煤机的技术水平和质量要有实质性地提高。在设计时取最大或最小值的基本参数有:采煤机的质量ψ_1(α)=min sum from 1 to n(mi)(mi—采煤机功能部件的质量);采煤机部件上的动载荷ψ_2(x)=min (?);煤的截割阻力特性变化时工作的稳定性ψ_3(α)=min A_ω~(max)[A_ω~(min)](A_ω~(max)和A_ω~(min)——发动机负荷时转子角速
On the basis of accelerating the progress of science and technology, increasing the amount of coal mined in the well requires that the technical level and quality of drum shearer be substantially enhanced. The basic parameters of maximum or minimum value at design time are: Shearer mass ψ_1 (α) = min sum from 1 to n (mi) (mi - shearer mass) The dynamic load ψ_2 (x) = min (?); The stability of work when the cutting resistance characteristics of coal changes ψ_3 (α) = min A_ω ~ (max) [A_ω ~ (min)] ~ (min) - Rotor angular velocity at engine load