ZDY12000LD型履带液压钻机机身立柱断裂分析

Fracture analysis of fuselage column of ZDY12000LD crawler hydraulic drill

摘要:

钻机立柱是煤矿井下设备工作重要的承载部件，其性能直接影响整车工作的安全性和可靠性。通过建立立柱三维模型，对ZDY12000LD型定向钻机立柱的有限元分析，在最大起拔力下对立柱进行强度校核。将原立柱材料Q345钢改为Q550钢，显著提高了立柱的力学性能，立柱可承受的弯曲应力提高了43%，变形量减小4%，承载能力和安全可靠性显著提高，增强了钻机运行的稳定性、安全性和可靠性。

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.