论文部分内容阅读
对CYJ14 -6 -89HF抽油机减速器的壳体建立了计算模型 ,用有限元法计算了强度和刚度 ,获得了减速器壳体在最大载荷作用下各部位的应力和变形的分布情况 .计算结果表明 ,整个壳体的应力分布不均匀 ,最大应力 ( 4 8.2 8MPa)发生在输出轴轴承座下边支撑筋板的受拉侧与底板连结的部位 ,但满足设计的强度条件 ;上箱盖的应力较小 ,强度富余较多 ;输出轴轴承座及其上边的箱盖部分变形最大 ,分别为 0 .2 2 8mm和 0 .30 2mm ,但不会对减速器的正常工作造成不良影响
The model of CYJ14 -6 -89HF pumping unit reducer shell was established. The strength and stiffness were calculated by finite element method. The distribution of stress and deformation of the reducer shell under the maximum load was obtained. The calculation results show that the stress distribution of the whole shell is not uniform, and the maximum stress (4 8.2 8MPa) occurs at the position where the supporting rib of the bearing plate under the output shaft is connected with the bottom plate but meets the designed strength conditions. Of the stress is smaller, the intensity more surplus; output shaft bearing seat and its upper cover part of the largest deformation, respectively 0.228mm and 0 .30 2mm, but will not adversely affect the normal work of the reducer