摘要
分析了现有钻井泵安全阀的工作原理及活塞杆与剪销板在接触点处被压溃的原因,设计了一种能够降低活塞杆与剪销板接触强度的结构,并利用ANSYS软件对改进前后活塞杆与剪销板的接触部位进行了有限元分析。通过与现有活塞杆与剪销板的接触结构相比,该结构极大地降低了活塞杆与剪销板的接触应力。
The working principle of the existing drilling pump safety valve and the reason that the piston rod and the pin plate are crushed at the contact point are analyzed. A structure that can reduce the contact strength between the piston rod and the shear pin plate is designed. The finite element analysis of the contact between the piston rod and the shear pin plate before and after the improvement is performed by ANSYS software. This structure greatly reduces the contact stress between the piston rod and the shear pin plate by comparison with the contact structure of the existing piston rod and shear pin plate.
引文
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