二次调节是近年来发展起来的新型静液传动系统。它不仅能无损耗地从系统中取得能量,回收与重新利用制动能量和重物的势能,显著地提高系统效率,而且还具有控制简单方便和控制性能较好等优点。在国外已得到广泛地应用,尤其是应用于工程机械上,节能效果十分显著。本文详细地论述了它的工作原理,完成上述功能的原理、安全保护措施及应用范围。 Secondary regulation is the development of new hydrostatic transmission system in recent years. It can not only get energy from the system without loss, recover and reuse the potential energy of brake energy and weight, significantly improve system efficiency, but also has the advantages of simple and convenient control and good control performance. In foreign countries have been widely used, especially applied to construction machinery, energy-saving effect is very significant. This article discusses in detail its working principle, the principle of completing the above functions, safety protection measures and application scope.