Steel dam gate driven by hydraulic motor

The invention relates to the technical field of turnover steel dam gates, in particular to a steel dam gate driven by a hydraulic motor, which comprises a bottom transverse shaft and a gate leaf fixedly arranged along the length direction of the bottom transverse shaft, opening and closing chambers are arranged at two ends of the bottom transverse shaft, and the two ends of the bottom transverse shaft extend into the corresponding opening and closing chambers. And the bottom transverse shaft is fixedly arranged with an output shaft of the hydraulic motor, and is rotationally connected with the two opening and closing chambers. By arranging the bottom transverse shaft, the gate leaf and the gate plate, when the device is used and a steel dam gate is in an open state, the gate leaf is in a horizontal state, the gate plate moves upwards at the moment and is in an open state, that is, sealing of a gap between the gate plate and the bottom plate is relieved, water from the upstream normally passes through the posi