CAJ | 학술논문

通过增大综采工作面液压支架供、回液管路直径，形成双进双回环形供液系统，降低了管路中的压力损失，提高了液压支架的移架速度和初撑力；将采煤机摇臂截割功率由650kW提高到750kW，同时通过调整采煤机摇臂齿轮齿数，提高了滚筒转速，加快了割煤的速度，提高了工作面产量。
통과증대종채공작면액압지가공、회액관로직경，형성쌍진쌍회배형공액계통，강저료관로중적압력손실，제고료액압지가적이가속도화초탱력；장채매궤요비절할공솔유650kW제고도750kW，동시통과조정채매궤요비치륜치수，제고료곤통전속，가쾌료할매적속도，제고료공작면산량。
The double in and out circle fluid supplying system is formed by increasing the diameters of hydraulic support supply and return tube at fully mechanized coal mining. This reduces pressure loss in the tube and increase the shift speed and original supporting of hydraulic support. The cutting power of shearer' s ranging arm increases from 650 kW to 750 kW. By adjusting the number of gear, the pulley' s rotate speed is improved and the cutting speed is faster, which improves productivity.