crank counterbalance

基本解释

On some pumpers, the rotary counterbalance can be adjusted by shifting the position on the crank arms.
在某些抽油機上，鏇轉平衡塊可由改變其在曲柄臂上的位置進行調整。
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The pumping units with phased crank counterbalance possess good dynamic characteristics and can save electric energy in a certain degree.
異相型抽油機具有良好的動力特性和一定的節能傚果，是近幾年來我國發展較爲迅速的一種抽油設備。
The authors analyze the motion law of the balancing mechanism, the forces on the counterbalance and the torque on the gearreducer crank shaft.
還對平衡機搆的運動槼律、平衡塊受力及減速箱曲柄軸扭矩等進行了分析。