lifting rig
常見例句
- The tubing string lifting velocity of the conventional mechanic rig under each particular gear is constant.
常規(guī)機械式修井機每一檔下的管柱起升速度為常量。 - Using the modal analysis method in this paper, the vibration characteristics of ZJ50J double-lifting mechanical driven oil drilling rig (patent No. 352466) is studied.
應用模態(tài)分析技術、振型截斷法,對專利證書號第352466號的ZJ50J雙升式機械驅動石油鉆機振動特性進行研究。 - The sequent wire-pulling is used in electric powered rig as it has smooth lifting system and cross wire-pulling is used in mechanical rig as balanced force relief impact force by compressed ai.
順穿法一般在電動鉆機上采用,主要考慮到電控操作提升系統(tǒng)比較平穩(wěn); 花穿法一般在機械鉆機上使用,以受力平衡來緩解氣控操作帶來的沖擊載荷的影響。 返回 lifting rig