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电液比例控制元件是近几年出现的元件,它有一些优良的性能,已为大家所注目。本文介绍一些电液比例控制的特点,对比例控制阀性能的要求,比例控制元件的应用及基本回路;BKP型及BKQI型电液比例元件;比例控制元件用的电气放大器种类等。 BKP型、BKQI型电液比例控制元件是我室近来研制的元件,文中介绍了它们的结构、规格、性能和试验数据、BKP型电液比例压力阀在薄板轧机中应用的实例。 P35BKF型压力补偿三位五通电液比例换向阀尚在研制中。关于电液比例控制元件的力马达(电磁铁)及放大器的设计和结构,将在以后专门阐述。
Electro-hydraulic proportional control element is the emergence of components in recent years, it has some excellent performance, for everyone’s attention. This paper introduces some of the characteristics of electro-hydraulic proportional control, control performance requirements of the proportion of the control valve, the application of proportional control components and the basic circuit; BKP-type and BKQI electro-hydraulic proportional components; proportional control components with the type of electrical amplifier. BKP-type and BKQI-type electro-hydraulic proportional control elements are newly developed components in our laboratory. The structure, specifications, performance and test data of them are introduced in this paper. The application of BKP electro-hydraulic proportional pressure valve in the sheet metal rolling mill is introduced. P35BKF pressure compensation three five-way electro-hydraulic proportional valve is still under development. The design and construction of a force motor (electromagnet) and an amplifier for electro-hydraulic proportional control elements will be elaborated later.