CAJ | 학술논문

缓冲平衡阀是旋挖钻机上车回转液压系统的重要组成部分，对旋挖钻机上车回转的启制动特性起决定作用。文章以某型旋挖钻机为研究对象，分析了缓冲平衡阀的主要结构和工作原理，建立了旋挖钻机回转液压系统的AM Esim仿真模型，研究了缓冲平衡阀的2个弹簧预紧力、锥阀的直径、阻尼孔直径等主要参数对旋挖钻机回转液压系统的影响。结果表明，缓冲平衡阀锥阀直径在9～10 m m之间，阻尼孔直径在0.3～0.5 mm之间，系统响应快，马达压力波动小，工作平稳。
완충평형벌시선알찬궤상차회전액압계통적중요조성부분，대선알찬궤상차회전적계제동특성기결정작용。문장이모형선알찬궤위연구대상，분석료완충평형벌적주요결구화공작원리，건립료선알찬궤회전액압계통적AM Esim방진모형，연구료완충평형벌적2개탄황예긴력、추벌적직경、조니공직경등주요삼수대선알찬궤회전액압계통적영향。결과표명，완충평형벌추벌직경재9～10 m m지간，조니공직경재0.3～0.5 mm지간，계통향응쾌，마체압력파동소，공작평은。
Counterbalance valve is an important part of hydraulic system of rotary drill rig slewing mechanism .It plays a decisive role during rotary drill rig start slewing and braking .Taking a certain type of rotary drill rig as an example ,the main construction and work principle of its counterbalance valve are analyzed .Then the simulation model of the rotary drill rig hydraulic slewing system is built by AMESim .The influence of the main parameters of the counterbalance valve including two springs ’ preload ,cone valve diameter ,orifice diameter on the rotary drill rig hydraulic slewing system is dis-cussed .The results show that ,when the cone valve diameter is between 9 mm and 10 mm and the ori-fice diameter is between 0.3 mm and 0.5 mm ,the system response is fast and stable ,and the working pressure fluctuation of the motor is small .