lifting rig

基本解釋

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。