为什么抽沙船工作时间长会穿线有振动声音！
1.液体内有气体，仔细检查砂泵及进水管路各密封面连接螺栓有否松动，密封垫是否损坏，泵体及管路系统零件有否损坏。
2.管路支撑不稳，水泵底座或地脚螺栓松动是造成振动常见的原因，必须紧固各处螺栓，避免出现松动。
3.砂泵与电机轴不同心，应进行调整，用皮带转动时，转动带过松或接头接触不良，也会引起振动。水泵叶轮不平衡运行中叶轮磨损或个别叶轮流道堵塞易造成振动，有时也因轴弯曲工叶轮不良失去平衡而引起振动。

Why pumping sand work a long time will wear line vibration sound!
1 in liquid gas, carefully check the pump and water pipes to connect the sealing surface has loose bolts, gasket is damaged, the pump and piping system has not damaged parts.
2 instability line support, pump base or anchor bolts loosening caused by vibration are common causes, various fastening bolts must be to avoid loosening.
3 pump and motor shaft, should be adjusted, with a belt rotation, rotation belt is too loose or bad connections will cause vibration. Pump impeller imbalance in the impeller wear or individual impeller flow channel blockage is easy to cause vibration, and sometimes also due to the shaft of the impeller caused by poor balance caused by poor vibration.