Pump and motor mounted on a common chassis, through the flexible coupling from the motor direct drive.
泵与电机安装在共同底盘上，通过弹性联轴器由电机直接驱动。
2
The overall design for the hydraulic top drive, discussed how to choice the motor, pump, and the design and layout of the gear box, the brake energy recovery and so on.
对液压顶驱进行了总体设计，讨论了马达、泵等的选择，减速箱的设计方案与布局，刹车制动能量回收等。
3
Now the novel linear motor of bidirectional pulse variable-frequency control is applied to drive the flow control pump successfully.