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一、概述伺服系统在我国的现代化建设中,正在得到日益广泛的应用。而在所有的伺服系统中,比如电伺服系统、液压伺服系统、电液伺服系统等等,尤以电液伺服系统反应最快、控制精度最高、工作稳定可靠,又能以小功率控制大功率输出;且体积小、重量轻。由于电液伺服系统具有上述显著特点,因此,它越来越普遍地应用在许多先进工业技术中。大家知道,电液伺服系统是由电液伺服机构和放大器组成,而电液伺服机构的心脏是电液伺服阀。在某种意义上讲,电液伺服阀的发展进程反映了电液伺服技术的发展历史。1920
First, an overview Servo system in our country’s modernization, is being increasingly widely used. In all the servo systems, such as electric servo system, hydraulic servo system, electro-hydraulic servo system and so on, especially in electro-hydraulic servo system, the fastest response, the highest control accuracy, stable and reliable work, but also with high-power low-power control Output; And small size, light weight. As the electro-hydraulic servo system with the above-mentioned salient features, therefore, it is more and more widely used in many advanced industrial technologies. We all know that electro-hydraulic servo system is composed of electro-hydraulic servo and amplifier, and the heart of electro-hydraulic servo is electro-hydraulic servo valve. In a sense, the development of electro-hydraulic servo valve reflects the development history of electro-hydraulic servo technology. 1920