旋挖钻机三角形连接架的有限元分析

The finite element analysis for the triangular connecting frame of rotary drilling rig

在详细分析旋挖钻工况下受力情况的基础上,建立了旋挖钻机的数学模型,并且确定了旋挖状况下的典型工况。利用ANSYS软件对旋挖钻机工作装置支撑机构中的三角形连接架进行了静力学有限元分析,揭示三角形连接架在各种典型位置工况下的最大变形值、最大应力值、危险截面区域以及变形和应力的分布规律,分析结果显示,三角形连接架变形和应力分布规律与实际计算相符,且该结构在强度和刚度设计上都存在一定裕量,为改进支撑机构结构形式和减轻自重提供一定的参考。

Based on detailed mechanics analysis of rotary drilling rig under rotary drilling conditions,a mathematics model was established and determining the typical conditions under rotary drilling conditions.The triangular connecting frame of rotary drilling rig is analysised through using ANSYS software.Revealing the distribution rule of the maximum deformation value,the maximum stress values,the risk regional as well as the deformation and stress distribution about the triangular connecting frame under the typical locations.The results indicate that,the distribution rule of deformation and stress is in line with the actual calculation and being allowance in strength and stiffness,it can provide a reference for improving the structure form and reducing weight.