Shield that installs energy storage ware additional constructs machine screw conveyer back brake door control system

The utility model discloses a shield that installs energy storage ware additional constructs machine screw conveyer back brake door control system, include energy storage ware, valve plate, throttle valve plate and the hydraulic cylinder who is connected with the screw conveyer late gate, be equipped with tribit cross hand -operated direction valve on the valve plate, be equipped with magenetic exchange valve, first hydraulically controlled check valve, second hydraulically controlled check valve, first two -way choke valve, the two -way choke valve of second on the throttle valve plate. The utility model discloses voltol oil in the energy storage ware can enter into hydraulic cylinder's no pole intracavity through tribit cross hand -operated direction valve, and promote piston and piston rod action in the hydraulic cylinder, and then close the screw conveyer late gate, the utility model discloses simple structure, practical reliable, easy operation convenient, with low costs, conveniently solved the circumst