基于伺服电机和流量配给阀的直驱式电液阀门定位系统设计  

The Design of Direct Driving Electro-hydraulic Valve Positioning System Based on the Servo Motor and Flow Distribution Valve

作　　者：闫磊[1] 徐志鹏[1] 王林翔[2] 

机构地区：[1]中国计量学院浙江省流量计量技术研究重点实验室,浙江杭州310018 [2]浙江大学机械设计研究所,浙江杭州310028

出　　处：《液压与气动》2015年第11期45-48,共4页Chinese Hydraulics & Pneumatics

基　　金：国家自然科学基金(51305419)

摘　　要：结合伺服电机优良的控制特性和液压系统功率重量比大等优点,提出一种新型直驱式电液阀门定位系统,由伺服电机驱动双向齿轮泵和流量配给阀实现阀门换向和精确定位。设计了基于TMS320F2812的智能控制器,对控制器的硬件组成和软件框架进行了介绍;为了提高系统动态响应特性设计了PID程序并开展了初步试验,结果表明该系统运行可靠,定位精度优于0.3 mm。Combined with the excellent control characteristic of servo motor and the high output power advantages of hydraulic system, the paper puts forward a new direct-drive electro-hydraulic valve positioning system, the servo motor drives the double-way pump to realize reversing and precise positioning of the valve system by the flow distribution valve. Designed the intelligent controller based on TMS320F2812 and introduces the hardware composition and software framework of the controller. In order to improve the system dynamic response, the PID program is de- signed, and conducted a preliminary experiment, the results show that the system is reliable operation and positio- ning accuracy is better than 0.3 mm.

关 键 词：电液系统 直驱 伺服电机 DSP 

分 类 号：TH137.9[机械工程—机械制造及自动化]