【摘要】 本文以3NB—800型钻井泵为例,用二维有限元法,通过建立力学模型,分析了连杆的应力和变形,找出了其最大应力和危险断面,其部位与现场使用的连杆断裂部位相吻合,为改进连杆的设计,加强其关键部位提供了依据。更多还原

【Abstract】 Taking 3NB-800 slush pump as an example, by setting up a mechanical model, this paper makes a study of the stress and deformation of the connecting rod on triplex slush pumps by means of two-dimensional finite-element analysis and finds the maximum stress in it and its critical cross-section, whose location is in good conformity to that on the broken parts in in-situ operations. The study provides thus scientific basis for strengthening the critical section-in connecting rod design.更多还原