泵的传动是通过夹壳联轴器由立式电动机驱动，从电机端看，泵为顺时针方向旋转；
Pump is driven by a vertical motor through clamp coupling. Viewing from motor, pump makes clockwise rotation;
泵的传动通过弹性联轴器由电机直接驱动，从电机方向看，泵均为逆时针方向旋转。
The pump is driven by motor through flexible coupling. View from motor end, the rotating direction of pump is counter clockwise.
讨论了泵中V带传动的可靠性设计与传统设计比较，不仅根数少、尺寸小、质量轻，而且可靠性高。
Reliability design of V-belt drive get not only a small size? Light wight but also high reliability in the circulating pump.
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