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在液压传动和气动工作缸中,传统的密封方法是采用软质密封圈。这种方法虽然密封比较可靠,但是在损坏后更换时比较麻烦,而且在运动时存在摩擦力,它对某些传动是有害的。例如在自动化生产中,如果机器短期停止运行再重新开动时,摩擦力的情况发生了变化,必须经过一段时间之后系统才能正常运转。锻压生产所用的机械手的工作缸中,如果存在上述摩擦力,则会引起一系列不良后果。锻锤和机械压力机的每分钟行程次数都比较高,所
In hydraulic transmission and pneumatic cylinders, the traditional method of sealing is the use of soft seals. Although this method of sealing is more reliable, it is cumbersome to replace after damage, and there is friction during exercise, which is harmful to some transmission. For example, in automated production, if the machine stops running for a short period of time and then restarts, the friction condition changes and the system must not be able to function until a certain period of time elapses. Forging the working cylinder used in the production of the robot, if the above friction, it will cause a series of adverse consequences. Hammers and mechanical presses per minute stroke times are higher, the