【摘要】 为使减速箱后置对称循环游梁式抽油机及非对称循环游梁式抽油机的运动指标m_a在各自的给定条件下取得最小值,其各杆尺寸应当合理。本文对此进行了论述,并给出求运动指标m_a的公式以及求取各杆合理尺寸的方法。更多还原

【Abstract】 The rationality of the link-dimensions must be considered when establishing a minimum kinematic index m. for a couventional pumping unit, either with symmetrical or unsymmetrical pumping cycles,under correlated conditions. Formulae for calculating the kinematic index and method for solving the rational dimensions of the links are introduced in this paper.更多还原