无游梁塔架式胶带传动长冲程抽油机结构初探

无游梁塔架式胶带传动长冲程抽油机由曲柄－连杆－滑块机构、动滑轮－窄胶带－定滑轮机构和复合滚筒增程机构组成。在给出这种抽油机工作机构和传动原理的基础上，进行了运动分析和动力分析，并阐述了确定基本参数和机构尺寸的方法。实例设计和综合分析表明，这种抽油机的动力性能优于游梁式抽油机和其他无游梁抽油机，具有扭矩小、平衡效果好、重量轻、可靠性高等优点。

Tower type belt driven long stroke pumping unit

The tower type belt driven long stroke pumping unit is composed of the crank-linkage-slide mechanism, movable pulley-narrow belt-fixed pulley mechanism and compound drum stroke-increment mechanism. The operating mechanism and the transmission principle of the unit are introduced, the kinetic and dymamic analysis are made and a method for determining the basical parameters and the structural dimensions is expounded. Design and analysis show that the dynamic characteristics of this pumping unit, represented by low torque, good counterbalancing effect, light weight and high l.eliability, is superior to that of beam pUmping unit and other without-beam pumping units.