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密封装置的工作可靠性和寿命,是衡量和评价液压系统设计与制造质量的重要指标。其作用有二;防止内漏与外漏;防止空气与尘埃进入。密封装置依其工作状态的不同,通常可分为:静密封装置——被密封的部位在机器运转过程中没有相对运动(图1);动密封装置——被密封的部位在机器运转过程中具有相对运动。根据相对运动的特点,动密封装置又分
The reliability and life of the sealing device is an important indicator to measure and evaluate the quality of the design and manufacture of hydraulic system. Its role has two; To prevent leakage and leakage; To prevent the entry of air and dust. Sealing devices according to their different working conditions, usually can be divided into: Static sealing device - the site was sealed in the machine is not moving during the relative movement (Figure 1); Dynamic sealing device - the site was sealed during the operation of the machine With relative movement. According to the characteristics of relative motion, dynamic seal device is divided