本文介绍的法国六万五千吨模锻水压机活动横梁的平衡系统,是一个没有电气环节、对同步缸进行补偿、对回程缸进行节流的有差自动控制系统。整个系统由同步缸、回程缸、调节器和补偿器组成。为了保证系统在活动横梁工作行程不同速度时能正常工作,系统配有两种调节器,一种适应于高速,另一种适应于低速。由于是一个有差的控制系统,再加上各个环节存在着较大的阻尼,这就限制了平衡精度的提高。文中分析了系统的静态精度,但未对系统的动态品质进行分析计算。 This article describes the balance of the French 65,000 tons die forging hydraulic crossbeam system is a no electrical links to compensate for the synchronous cylinder, back cylinder throttling poor automatic control system. The entire system consists of synchronous cylinder, return cylinder, regulator and compensator. In order to ensure that the system can work normally at different speeds during the working cross-beam work, the system is equipped with two regulators, one adapted to high speed and the other adapted to low speed. Because it is a poor control system, coupled with greater damping in all aspects, which limits the improvement of balance accuracy. In this paper, the static accuracy of the system is analyzed, but the dynamic quality of the system is not analyzed and calculated.