The crank-chain driving and long stroke pumping unit described in this papes is a new type of pumping unit.
曲柄链条动滑轮式长冲程抽油机是一种新型抽油机。
The cylinder chain lower super long stroke pumping unit is a kind of up to date and high efficiency equipment.
圆柱链低矮式超长冲程抽油机是一种新型高效有杆采油设备。
The method of motion analysis of new type and long stroke pumping unit with vertical walking-beam and pylon was studied.
对新型长冲程抽油机——竖游梁塔架式抽油机的运动分析方法进行了研究，导出了该机悬点位移、速度及加速度的计算公式。
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.
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。
A dual variable-diameter wheel pumping unit, which has long stroke and low pumping speed and large load capacity, is designed based on conventional beam pumping units.
双变径轮式抽油机是在继承常规游梁式抽油机优点的基础上设计而成的大载荷、长冲程、低冲次节能型抽油机。
The "weight-type" balanced structure of JPCYJ can achieve accurate weight balance, the tower structure can achieve a long-stroke pumping, This pumping unit provide a good conditions for energy saving.
JPCYJ结构属于“砝码式”平衡，能实现精确的配重平衡，塔式结构能实现抽油机长冲程，这为抽油机节能提供了良好的条件。
The framework of the long-stroke pumping unit with compound crown sheave consists of a flat frame with four columns, two cantilever beams and two back legs.
复合天轮式长冲程抽油机主架由四柱扁框架、两个悬臂梁和两个后支腿组成。
This pumping unit has many advantages such as small in size, easy to perform long stroke with low stroke times, and convenient to realize automatic control, etc.
该抽油机具有体积小、占地面积少，易于实现长冲程、低冲次、便于实现自动化控制等优点。
A new type of energy-saving and long-stroke pumping unit is designed.
文章介绍了一种挂钩换向链条驱动的长冲程节能抽油机的结构和工作原理。
A new type of energy-saving and long-stroke pumping unit is designed.
文章介绍了一种挂钩换向链条驱动的长冲程节能抽油机的结构和工作原理。
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