投稿时间:2021-05-25  修订日期:2021-05-25  点此下载全文
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李骏 中煤科工集团西安研究院有限公司陕西 西安 710077 710077
焉忠方 中煤科工集团西安研究院有限公司陕西 西安 710077 710077
路前海 中煤科工集团西安研究院有限公司陕西 西安 710077 710077
中文关键词:钻机立柱  有限元分析  断裂  起拔力
Fracture analysis of fuselage column of ZDY12000LD crawler hydraulic drill
Abstract:The rig column is an important load-bearing part of downhole equipment. Its performance directly affects the safety and reliability of the whole vehicle. By establishing the three-dimensional model of the column, the mechanical analysis and finite element analysis of the column of ZDY12000LD directional drilling machine are carried out, and the strength of the column is checked under the maximum lifting force. The mechanical properties of the column are significantly improved by replacing the original column material Q345 steel with Q550 steel. The bending stress of the column is increased by 43%, the deformation is reduced by 4%, the bearing capacity and safety reliability are significantly improved, and the stability, safety and reliability of the rig operation are enhanced.
keywords:pillar  finite element  fracture  pulling force
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