液压系统流-压互补同步回路仿真研究

Research on Simulation of Hydraulic System Flow-Pressure Complementation Synchronous Circuit

液压同步回路是液压系统中重要的和运用最广泛的回路之一,然而,高精度液压同步回路的实现,往往对同步元件、执行机构或控制装置的性能要求高,实现成本较高,这在一定程度上成为了制约高精度液压同步回路应用的主要因素之一。通过建立流-压互补同步回路系统的仿真模型,分析了系统的理论同步精度,比较了负载、同步阀分流精度等不同参数对系统同步精度的影响,掌握了系统回路工作特性,并验证了流-压互补同步回路实现高精度同步要求的可行性。

Hydraulic system is considered as one of a very important and most common hydraulic circuits, however, it is high cost and been hard recommended for synchronizer, actuator and control gear to get the high synchronous precision, what, to a certain degree, also is regarded as the factor of influencing the application of high precisely hydraulic synchronization circuit. By modeling the hydraulic flow -pressure complementation synchronous circuit, and making the model simulation and analysis of system synchronous precision in theory, also, the influencing for system synchronous precision is considered by comparing with the different parameters of system load, diversion accuracy of by-pass. Then, the characteristics of system circuit is obtained, and, the abilities of high accuracy achieving by flow-pressure complementation synchronous circuit is verified.