基于ANSYS Workbench的轻便岩心钻机动力头有限元分析

Finite Element Analysis on the Power Head of Portable Core Drill Based on ANSYS Workbench

摘要:

采用三维建模软件SolidWorks建立轻便岩心钻机的动力头三维几何模型，并导入有限元分析软件ANSYS Workbench中，得到有限元模型；利用有限元分析法，分别分析动力头内关键零部件的动态特性等机械性能要求；分析齿轮在钻进过程中啮合时的受力变形情况，证明齿轮满足强度、刚度等机械性能要求，并分析齿轮间接触区域的接触情况；模拟钻探工程中提下钻、加压钻进、减压钻进3种工况，分析主轴的受力变形情况，为主轴设计提供一定的依据；分析箱体在提下钻、钻进工况下的受力变形，证明箱体具有良好的刚度、强度，并对箱体进行模态分析，得出箱体固有频率，验证箱体的动态性能。

Abstract:

With 3D modeling software SolidWorks, 3D model of portable core drill power head was built, which was introduced into the finite element analysis software ANSYS Workbench to obtain finite element model. Based on the finite element analysis method, the dynamic characteristics and other mechanical properties of the key components in the power h西南地区典型重大突发地质灾害调查（编号：12120113096700）ead were analyzed respectively. The analysis on the strain and deformation of gears during drilling process proved that the gears met rigidity, strength and other mechanical properties; and the contact conditions of gears contact area was also analyzed. The simulation was made on drill pipe hoisting and lowering, pressure drilling and decompressed drilling to analyze the force and deformation of the spindle to provide basis for the spindle design. The analysis was made on the strain and deformation of gear box in the drill pipe hoisting and lowering process to prove good rigidity and strength; according to the modal analysis on the box, the natural frequency of the box is obtained and the dynamic performance of the box is verified.