Single servo motor double pump closed loop control system

The utility model relates to a single servo motor double pump closed loop control system, including total controller, servo drive, the fuel feed pump assembly, hydraulic system and pressure control regulator, total controller passes through pressure control regulator and servo drive electric connection, the fuel feed pump assembly is used for the fuel feeding for hydraulic system, the fuel feed pump assembly includes two at least oil pumps, each oil pump is connected with the servo drive transmission simultaneously, each oil pump is equipped with the fuel feeding oil circuit, the fuel feeding oil circuit is connected with hydraulic system's oil circuit, wherein, be equipped with PRESSURE DETECTOR on the fuel feeding oil circuit of an at least oil pump, PRESSURE DETECTOR respectively with total controller and hydraulic system electric connection, be equipped with pressure relief device on the fuel feeding oil circuit of at least another oil pump. When low, control the large -traffic fuel feeding of each oil pump when detecting hydraulic system pressure, it is fast, when the hydraulic system oil pressure reaches system setting's pressure, partly oil pump pressure release, all the other partly oil pump fuel feeding to it works under rated power to keep servo motor, driver.