The feed drive system of a precision cold ring rolling mill adopts AC servomotor and mechanical transmission, rather than conventional electro-hydraulic actuator.
采用交流伺服电机和机械驱动进给系统的冷轧环机，其进给伺服控制系统的设计需要一个新的工艺动力学模型。
2
The design concept of the relative frequency amplitude ratio and the relative frequency width of toque motor stiffness of electro-hydraulicservo valve are proposed.
提出了利用相对频率幅值比和相对频宽的电液伺服阀力矩马达的设计概念。
3
In this paper, the electro-hydraulicservo system is valve-controlled motor, mainly include electro-hydraulicservo valves, amplifier, hydraulic motors, and other feedback components.