Based on the analysis of the failure cause of piston packing ring, air valve and unit pipeline vibration, the methods to solve are proposed.
本文在分析了由活塞密封环、气阀及机组管道振动引起压缩机产生故障原因的基础上，提出了相应的解决办法。
Static analysis of Model LCJ1250 chain pumping unit indicates that the rather low reliability of the unit is due to the premature failure of the path chain caused by the action of lateral bending.
对LCJ1250链条抽油机的静力学分析与计算表明，由于轨迹链条承受侧向弯曲作用而早期失效，造成抽油机可靠性低。
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