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The stroke reversing of the hydraulic drive reciprocating pump is controlled by the PC, which simplifies the electrical lines, enhances the controlling flexibility, and possesses the peculiarities of high controlling precision, good reliability, convenient maintenance and debugging as well as alterable programming.
液压驱动往复泵的行程换向由PC控制,简化了电气线路,增强了控制的柔性,并具有控制的精度高、可靠性好、维护调试方便、程序可变等特点。
Energy-saving and smooth operation while forced reversing can be realized by good play of the buffer springs so long as the relative sliding length between the counterbalance weight and the movable frame on the load-belt long stroke pumping unit is properly designed.
设计宽带长冲程抽油机时,合理地确定平衡重与活动框架的相对滑移长度可以更好地利用缓冲弹簧在换向时实现节能和缓冲的目的。
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