一、往复运动密封装置常见故障的原因及对策图1和图2分别为采用滑环式组合密封件和 Y 形密封件的典型密封系统在往复运动液压缸中的应用。图1所示的液压缸动密封装置采用滑环式组合密封,其优点主要是活塞结构紧凑,且由于滑环材质本身自润滑性好、摩擦系数低,故液压缸作往复运动时摩擦阻力极小,并可避免液压缸的“爬行”和异常噪声。 First, the reasons for reciprocating seal failure and countermeasures Figure 1 and Figure 2, respectively, with a slip ring seal and Y-seal typical seal system in the reciprocating motion of the hydraulic cylinder. The hydraulic cylinder dynamic seal device shown in FIG. 1 adopts a slip ring combination seal, which has the advantages of compact piston structure and good self-lubrication of the slip ring material and low friction coefficient so that when the hydraulic cylinder reciprocates, the friction resistance pole Small, and can avoid hydraulic cylinder “crawl ” and abnormal noise.