In the light of the key technique of the down-hole driven progressivecavitypump (PCP) for oil production, a power distributional planetary reducer is proposed.
针对井下驱动螺杆泵的关键技术问题，提出了用于井下直接驱动螺杆泵的功率分流式行星减速器。
2
Performance characteristic and stress condition were analyzed in the process of progressivecavitypump well startup and a startup torque dynamic model was established.
对启动过程中单螺杆泵的运动特点和受力情况进行分析，建立了该系统启动扭矩动力学模型。
3
As the increase of the pressure difference, the contact pressure increases, the contact pressure of iso-wall thickness progressivecavitypump is larger than that of common one.