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- Looseness of connection of moving parts of a chain drive pumping unit is one of the main factors causing the impact of the unit in reversing. 链条等传动件的联结松弛是导致链条抽油机换向冲击的主要原因。冲击造成机件损坏的过程缓慢而渐进，达到一定程度可导致链条断脱、特殊链节失效、链轮轴滚键等事故。
- Development of the well condition self-adaptive pumping unit. 井况自适应抽油机的研制。
- Modifying balance system of Model LCJ1250 chain drive pumping unit. LCJ1250链条抽油机平衡方式改造的实践
- In the light of the low power factor of the motor on pumping unit, a wattless power dynamic compensation device for improving the power factor is presented. 针对抽油机用电动机无法满负荷运行和功率因数偏低问题,提出了一种用于提高功率因数的抽油机无功功率动态补偿装置。
- Dynamics simulation of hydraulic beam pumping unit based on 3D model. 液压游梁式抽油机的三维动力学特性仿真
- The operational characteristic of beam pumping unit is introduced, beam pumping unit is running, the cause changing three-phase asynchronous motor as a generator is also analyzed in detail. 介绍了游梁式抽油机的工作特性,详细分析了抽油机运行时三相异步电机产生“倒发电”现象的原因。
- New method for power saving of beam pumping units. 游梁式抽油机节能新技术探讨。
- The main factors influencing power saving of the beam pumping unit with high slip motor are pumping speed of the unit, slip ratio of the motor and rotary inertia of rotating parts. 指出影响使用高转差率电动机的游梁式抽油机节能的主要因素是抽油机的冲次、电动机转差率和旋转件的转动惯量。
- A computer-controlled loading device-for testing the torque output of the gear reducer, the dynamic stress of the main parts on the pumping unit and the operating data of the motor is introduced. 介绍了采用微机控制的抽油机加载装置在抽油机减速器输出轴(曲柄轴)扭矩、抽油机主要部件动态应力、超高转差电动机工况参数测试中的应用。
- Analysis of fatigue reliability of crank pin of beam pump unit. 游梁式抽油机曲柄销疲劳可靠性分析
- The whole system consists of oil tanks, electric motor pump unit, control valve unit, accumulators, manual pump and control instruments. 整套系统由油箱、电机泵组、控制阀组、蓄能器、手动泵和控制仪表等组成。
- In order to solve the great starting current and occurrence of water hammer in pump unit, the soft starting controller of motor based on PIC microprocessor was proposed. 为解决水泵机组起动电流大和易出现水锤现象的问题,提出一种以PIC单片机为控制核心的电动机软起动控制器。
- Application of Watt chain six-bar linkage on pumping units. 瓦特链六杆机构在抽油机上的应用与优化设计
- A coupler drive system for pumping unit is developed by using the theory of hydraulic drive of coupler. 摘要运用耦合器液力传动原理，研制成功抽油机耦合器传动系统。
- Based on the analysis of the impact force resulted from forced reversing on load-belt pumping units,a sliding joint is provided for connecting the counterbalance weight with the belt-connecting frame. 根据对宽带长冲程抽油机械换向时产生的冲击力所进行的分析与计算,提出一种将配重与其上下胶带连接架作成可移式的改进结构。
- With phase sequence control to prevent motor reversal due to the adverse consequences. 配有相序控制器;可防止因电机反转所造成的不良后果.
- F/R forward/ reverse control: when it connect to the GND, the motor reverse ； otherwise, the motor forward. 正反转控制：当它接地时，电机反转；反之，电机正转。
- The mechanical feature of Y-series motors is hard, which made the motor match the beam pumping unit irrationally, and then results in the low efficiency of the system. 文章介绍了游梁抽油机负载特点,对合理驱动以及电机节能的问题进行了讨论,提出了应综合考虑的观点。
- Chain type long stroke pumping unit is mainly used in mid and anaphase oilfield. 链式长冲程抽油机主要是为开采中、期油田而设计的。
- A Calculation method of kinematic parameters for the unusual shape beam pumping unit. 异形游梁式抽油机运动参数的求解方法。
