论文部分内容阅读
为了提高液压机自动控制系統工作的可靠性,对其进行改进是一項迫切的任务。在其它条件相同的情况下,自动控制系統越簡单和参加自动循环工作的液压和电气元件的数量越少,则其工作可靠性就越高。下面介绍几种液压控制机构工作自动化的新方法,为了进行比較,同时也介紹几种現有的自动控制系統。目前已知的液压控制机构的自动控制系統主要采用由电磁鉄控制的滑閥式和錐閥式分配器。同时,电磁鉄接受来自下列各种电气元件发出的轉換主令:极限开关、压力继
In order to improve the reliability of automatic control system for hydraulic press, it is an urgent task to improve it. Other things being equal, the simpler the automatic control system and the smaller the number of hydraulic and electric components that participate in the automatic cycle work, the more reliable it is. Here are some of the new methods of hydraulic control work automation, in order to compare, but also introduce several existing automatic control system. At present, the automatic control system of a hydraulic control mechanism mainly uses a spool valve and a cone valve distributor controlled by a solenoid valve. In the meantime, the electromagnet accepts the transfer command from various electrical components: limit switch, pressure follow