讨论了分流集流阀定节流口制造误差对同步系统精度的影响 ,并就一简化后的开环系统作了仿真分析和计算。仿真分析结果表明 ,当定节流口直径制造误差为 0 .0 1mm时 ,在两侧定节流口过流面积差引起的流量差和两侧负载偏差的共同作用下 ,对系统同步精度影响很大。在实际系统的调试中 ,可以根据负载偏差及负载的特点合理安排左右油缸的位置以达到满意的同步精度 ,同时这对闭环反馈系统的同步精度也有直接的影响 The influence of the manufacture error of shunt manifold on the accuracy of synchronous system is discussed. The simplified open loop system is simulated and analyzed. The simulation results show that when the error of the orifice diameter is set to 0.1 mm, the influence of the flow difference caused by the difference of flow area on both sides and the load deviation on both sides affects the system synchronization accuracy Great. In the actual system debugging, according to the characteristics of load deviation and load can reasonably arrange the left and right cylinder position in order to achieve satisfactory synchronization accuracy, while the closed-loop feedback system synchronization accuracy also has a direct impact