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在第十二个五年计划中,为了加速巷道掘进方面的科学技术进步,要把科研设计部门和制造厂家的力量集中于研制技术水平与质量更高的掘进机械上,以保证掘进作业达到更高的机械化程度,从而大大减少手工劳动量。 为了扩大掘进机掘进巷道的范围,在改进四种掘进机的同时还要研制五种新型掘进机。1986年,亚细那瓦特斯科机械制造厂开始批量生产4ПП—2M改进型掘进机。该机是由苏联中央掘进机和煤炭工业、采矿工业和地下建筑成套设备科学研究设计院(以下简称掘进机研究设计院)和工厂共同研制的。同4ПП—2型掘进机相比,改进型掘进机的工作机构采用装有PKC—2型和PПП—2M型截齿的两套可替换的截割头,其传动装置的功率从105kW提高到120kW。
In the 12th Five-Year Plan, in order to speed up the scientific and technological progress in roadway driving, we must concentrate the power of the research and design departments and manufacturers on the development of tunneling machines of higher technical quality and quality so as to ensure that the driving operations will reach even more High degree of mechanization, thus greatly reducing the amount of manual labor. In order to expand the tunnel boring machine tunneling range, while improving four kinds of roadheader at the same time also develop five new roadheader. In 1986, Arsenal Vasco Machinery Factory began mass production of 4ПП-2M improved roadheader. This machine is developed by the Soviet Union’s central tunnel boring machine and coal industry, mining industry and underground construction complete sets of equipment scientific research and Design Institute (hereinafter referred to as boring machine research and Design Institute) and the factory jointly developed. Compared with the 4ПП-2 TBM, the working mechanism of the tunnel boring machine adopts two sets of alternative cutting heads equipped with PKC-2 and PПП-2M picks. The power of the transmission increases from 105kW to 120kW.