http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김영준(Y. J Kim),김도언(D. U Kim),홍대선(D. S. Hong),이상식(S. S. Lee),박성호(S. H. Park) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.4
Rotary drilling rigs, general construction equipment, are widely used for deeply drilling ground as foundation of public works. When using a drilling rig, an electric rotary drive supplies drilling power, and a large external torque is exerted to the mast of the drilling rig. In this study, structure analysis on the mast is carried out for developing a localized 250kN.m-type rotary drilling rig. Here, the elevation of the rotary drive is changed according to the geological construction environment. Through the analysis, the stresses of the mast structure under the maximum drilling torque are found, also the allowable torques at various elevations of the rotary drive are evaluated. Finally, the suitability of the mast design is examined from the analysis results.