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采用臂式工作机构的掘进机与采用钻进式掘进机相比,具有许多优点,其中主要是重量轻,结构紧凑,调动灵活,在半煤岩掘进工作面中能分别掘煤和掘岩,这样就为这种掘进机不论在苏联还是在国外的广泛应用创造了先决条件。 但是,为了进一步扩大臂式工作机构掘进机的应用范围,用来破碎更坚硬的岩石,则要有较大的转矩增大截割机构的给进力,因此,新型选择动作的掘进机,从七十年代开始均向重型大功率方向发展。
Boring machine with arm work mechanism has many advantages compared with using a boring machine, which is mainly light weight, compact structure, flexible mobilization, coal mining and rock excavation in semi-coal tunnel face, This creates the preconditions for the widespread use of this roadheader in the Soviet Union or abroad. However, in order to further expand the application range of boom working machine boring machines for breaking harder rocks, larger torque is required to increase the feeding force of the cutting mechanism. Therefore, the new choice of driving machine, From the seventies began to heavy-duty high-power direction.