基于CAN总线和磁流变阀的液压支架液压控制系统

The Hydraulic Control System of Hydraulic Supports Based on CAN Bus and Magnetorheological Valves

就采煤液压支架液压控制系统现存问题,用磁流变阀取代电磁阀作为主阀的先导阀,对原有系统进行了改进,设计了基于CAN总线和磁流变阀的新系统磁流变阀本身的特点使得后续系统控制硬件电路设计简单,同时也提高了主阀响应速度,消除了噪声。将CAN总线应用于液压支架电液控制系统,实现了各液压支架控制器之间的通信和上位机对其的远程监控。体现了基于磁流变阀和CAN总线液压支架控制系统的一些优越性,为液压支架控制系统的设计开创了一种新思路。

According to the existing problems, the hydraulic control system of hydraulic supports in the mining machines is designed based on CAN （Controller Area Network） bus and magnetorheological valves, in which magnetorheological valves as the pre-guiding of main valves are substitutes for the electromagnetic valves to reform the existing system. Because of the predominate characteristics of magnetorheological valves, this system makes the following design of hardware circuits simplify. In addition, it improves the response speed and eliminates the noise. The application of CAN bus in this system realizes communication among controllers of hydraulic supports and the controllers monitored remotely by the master computer. These indicate the superiority of the control system of hydraulic supports based on magnetorheological valves and CAN bus, which develops a new idea and method for the design of this kind of system.