This seal device has the advantages such as anticorrosion avoiding eccentric abrasion and rod broken good seal performance.
该密封装置具有抗腐蚀、防偏磨、防断杆、密封性能好等特点。
When the eccentric disc rotates in the positive direction, the support rod is driven to rotate upwards so as to lift weight.
偏心盘作反方向偏心旋转时支撑杆随偏心盘作向下方向旋转，使举重器下降复位。
The invention relates to an eccentric support, which comprises support incline rod (1) arranged with energy consumer (2).
本发明公开了一种偏心支撑，它包括支撑斜杆(1)，在所述偏心支撑斜杆(1)上设置耗能器(2)。
The connecting rod carries the power thrusts from the piston to the crankpin. At the same time, the rod is in eccentric motion.
连杆的作用是将活塞承受的压力传给连杆轴颈。同时，连杆做偏心运动。
The problem of eccentric wear of tubing and rod strings in rod pumped Wells is very severity in recent years, and led to service frequently, pump inspection period shorten and service cost enhanced.
近年来抽油机井管、杆之间的偏磨问题十分突出，导致作业频繁，检泵周期短，作业成本增加。
The problem of eccentric wear of tubing and rod strings in rod pumped Wells is very severity in recent years, and led to service frequently, pump inspection period shorten and service cost enhanced.
近年来抽油机井管、杆之间的偏磨问题十分突出，导致作业频繁，检泵周期短，作业成本增加。
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