推导了悬点位移的计算公式。
The formula for calculating displacement of the landing top is derived.
本文提出了悬点载荷计算公式的几点选用意见。
This paper also makes Suggestions for selection to formulae for calculating the polished rod loads.
悬点的应力变化产生速度波和应力波沿钻杆向下传递。
A velocity wave and a stress wave resulting from the stress variation are transmitted downward along the drill string.
主传动链与承载链将悬点载荷分解为换向抽汲载荷与平衡载荷。
The main drive chain and the bearing chain divide the polished rod load into reverse pumping load and equilibrium load.
其中悬点运动规律是由设计的特殊曲线作为变径轮廓曲线决定的。
In which the motion law of suspension center is decided by designing a special curve for varied diameter wheel.
电动机单向旋转，用曲柄摇杆机构换向，实现悬点的往复直线运动。
The prime motor rotates in a fixed direction and the alternating motion of the carrier bar is accomplished by the crank-rocker mechanism.
应用机械振动理论，对准匀速悬点运动下抽油泵的动力特性进行了分析。
The dynamical properties of oilwell pump under quasi-steady landing top movement is analyzed using mechanical vibration theory.
用矢量法导出了旋转驴头式抽油机悬点运动的位移、速度和加速成度的表达式。
With the help of the vector method, the general expressions for the displacement, velocity and acceleration of the polished nod on the swing horsehead pumping unit(SHPU)was introduced.
摘要：为模拟抽油机悬点载荷，设计了一种新型抽油机悬点载荷模拟试验装置。
Abstract: To simulate the polished rod load of the pumping unit, a new polished rod load simulation test device has been designed.
示功图量油就是通过对悬点载荷与悬点位移进行分析，计算井口产液量的一种方法。
Surface liquid yield measurement using dynamometer card (SLYMUDC) is a method of computing surface liquid yield of Wells by analyzing polished rod load and displacement.
导出了椭圆齿轮抽油机的悬点运动方程和功率表达式，给出了一种四型机型的设计参数。
The equation of polished rod motion and the power expression of the new pumping unit are derived and the design parameters for a Model 4 unit are presented.
抽油机的悬点运动规律是抽油机工作的重要工作特性指标，测取其运动规律显得十分重要。
The velocity law of polished rod acceleration is one of the most important performance of pump unit, so it is very important that how to measure it's velocity law.
把抽油机运动状态方程和卡尔曼滤波算法相结合，构造了一套适用的精确预测抽油机悬点速度的数学算法。
By combining the motion state equation with the Kalman filter algorithm, a mathematic calculation method for accurate prediction of the polished rod speed of the pumping unit is worked out.
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 method of motion analysis of new type and long stroke pumping unit with vertical walking-beam and pylon was studied.
介绍了直线电机驱动抽油机的工作原理、结构和特点，对其悬点运动、载荷及平衡重的计算作了分析，研究了修井作业时应注意的事项。
The working principle, structure and features are introduced in this paper. An analysis of calculation for lifting point movement, load and balance weight is introduce as well.
钻柱在上提、下放的开始和终了悬点的应力要发生很大变化，其中以上提过程的终了时变化最大。悬点的应力变化产生速度波和应力波沿钻杆向下传递。
When a drill string moves upward or downward in a well, significant stress variations at the suspension point are caused by the starting and stopping of the motion.
无换向架链条抽油机的链条承受的总拉力为悬点载荷与平衡重的差值加连杆对链条的水平分力在链条上形成的附加拉力之和，受力状况优于普通链条抽油机，且能得到控制。
The force conditions of the chain on a chain drive pumping unit without reverse rack are much more favorable than that on conventional chain drive pumping units, and can be well controlled.
不客气,我不了解详细情况,但是有一点我是知道的，是像你和你的妻子这样的人,你们每一天都在冒极大的风险，命悬一线，才使这个世界变成更美好的地方。
My pleasure, I don't know the details but I do know that its people like you and your wife that put your life on the line every day that make the world a better place.
谨记一点，你的酒店声誉永远是命悬一线。
实际状态下，考虑嵌入点的变化和嵌入缆的反悬链特性，提出了拖曳缆有效缆长的概念。
In actual state, the change of the embedded point and the characteristic of the reverse catenary are taken into account. This paper will propose the concept of effective length of the drag line.
实际状态下，考虑嵌入点的变化和嵌入缆的反悬链特性，提出了拖曳缆有效缆长的概念。
In actual state, the change of the embedded point and the characteristic of the reverse catenary are taken into account. This paper will propose the concept of effective length of the drag line.
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