摘要
超越钻机中,液压起升要求四缸的同步误差不能超过20 mm,以保证钻机井架和底座在负载分布很不均匀的情况下应力应变值在设计范围之内,以顺利实现钻机的起升和下降,提高钻机移运性,提高钻井效率。
For beyond four cylinders can＇t go case that the mast and rigging-down of the rig rig series, the required maximum permissible error （MPE） during synchronic rise of the beyond 20mm in order to control the stress strain value within the design range in the sub structure bear extremely uneven load. This is to ensure the smooth rigging-up and and to improve its movability and drilling efficiency as well.
出处
《机械》
2013年第5期42-46,共5页
Machinery
关键词
超越钻机
液压控制
同步升降
闭环控制
beyond rig series
hydraulic control
synchronic rise
closed-loop control
