基于液压泵伺服驱动的扩径机节能技术研究

摘要

A new technology used in expanding machine was introduced which was how to use servo motor drive and control hy-draulic pump. Metering pump was driven by servo motor as power source,and rotation rate and torque of servo motor could be changed by control unit so as to achieve compound control to flow and pressure. This power source can not only simplify the structure of hydrau-lic system,but also save energy and reduce noise. It’s a trend in the development of hydraulic power source in the future.%介绍一种扩径机新型的液压泵伺服驱动及控制技术，该技术采用伺服电机驱动定量泵作为动力源，通过控制单元改变伺服电机的转速和转矩来实现流量压力的复合控制。这种动力源不仅可以简化扩径机复杂的液压系统，而且还具有节能降噪的作用，是未来液压动力源发展的一种趋势。