A coupler drive system for pumping unit is developed by using the theory of hydraulic drive of coupler.
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。
Use the vertical shaft coupling and hydraulic coupler, starting smooth, compact structure, and is equipped with slow drive device.
采用垂直轴联轴器和液力偶合器，起动平稳，结构紧凑，并配有慢驱装置。
The applied examples show that the magnetic coupler can achieve the non-contacting and hermetical drive without any leakage under the condition of high-pressure, ultrahigh-pressure, vacuum, etc.
应用实例表明，采用磁力驱动密封装置，对于高压、超高压和真空等工况均可实现无接触的密闭传动，达到无泄漏。
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